U.S.S. SPEARFISH (SS-190) — war patrol report SS-190_SPEARFISH.pdf

— page 2 —
1. WAR PATROL.
PERIOD FROM DECEMBER 8, 1941, to 29 JANUARY 1942
AREA - SOUTH CHINA SEA AND INDO CHINA COAST.
SOUTH HAINAN ISLAND. WEST COAST
BORNEO AND PASSAGE INVOLVED.
ZONE TIME KEPT - +8

(Text is in a formal, structured format, with clear headings and subheadings, and includes specific details about the submarine patrol report.)

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1830 cleared Corregidor and commenced patrol. 2115 took departure from Cebra Island Light, course 256°T, searching for carrier reported southwest of Correidor.

: Proceeding to patrol station running submerged in daylight.

: Proceeding as before.

: 0556 changed course to 236°T. 1625 sound reported hearing two distinct pings bearing 315°T. Nothing ever sighted.

: 0000 arrived on station South of line from Cape Fadaran to Kudat and commenced patrol on auxiliary engine. Made periscope observations every 15 minutes otherwise ran at 110°.

: Patrolling as before, weather and visibility becoming worse.

: Patrolling as before. 2100 received orders to cancel Eastern boundary limits and watch for enemy expeditionary force South bound. Patrolled East and West. Heavy sea plus squalls.

: Patrolling as before. 0142 stern lookout reported blinker lights astern. Could see nothing there. No sound contact.

: Patrolling as before. Sea becoming rough and unable to fix position. Intermittent squalls. 2000 received orders to shift area 200 miles to North. Unable to run on after engines due to danger of flooding.

: Proceeding as before. Seas becoming mountainous.

: Proceeding as before.

: Proceeding to area off Camranh Bay in accordance with instructions received. 0430 sighted an identification signal bearing 220°T, distant 3 miles. Officer of the Deck thought signal was white and I thought it was green. Altered course to avoid as it might be the PICKEREL who should be leaving area. White Green was proper Asiatic Fleet emergency signal. At 0845 sound heard noises bearing 210°T that sounded like a motor running. 0845 sound heard similar directional noises bearing 080°T and 190°T. Nothing in sight so I avoided. Sound heard these noises I or about one hour.

: Patrolling as before. 0022 sighted small boat in the water distant about 1000 yards. Officer of the Deck dove the boat. Unable to pick ship up by periscope or sound. May have been fishing vessel or submarine. 1032 sighted three enemy submarines in irregular formation bearing 262°T, course about 320,

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1210 sighted enemy submarine distant 6,000 yards with 90° Starboard angle on bow, course 350, speed 13. Unable to reach favorable firing position. 1239 heard two muffled explosions that sounded as though a weight similar to boat engine cover had been dropped on deck and then fell over the side, striking the pressure hull with a metallic clang. No destroyer in sight. These were possibly depth charges from planes or detonation of our own torpedoes fired an hour and a half before. 1016 heard two explosions exactly similar to those heard before. Ran deep and silent at 225' for one hour. Weather still heavy and cannot see land due to overcast skies.

Dec. 21 - Patrolling as before. Because of strong current in this area you must work up the coast at night and down in daytime.

Dec. 22 - Patrolling as before. 0739 sighted tramp steamer well inshore on Northerly course distant about 7 miles. Went inshore 3 miles to 40 fathom curve. Sea, wind, and visibility improved.

Dec. 23 - Patrolling as before.

Dec. 24 - Patrolling as before. 2000 received orders to shift to area enveloping Southern half Hainan Island and Southern entrance to Tonking Gulf. Latitudes 17° North to 19° North.

Dec. 25 - Proceeding as before. 1211 sighted Kulao Rai Island bearing 310°T. This should be good spot. 1908 proceeded toward Tolinkin Bay, South Hainan.

Dec. 26 - Patrolling slowly across assigned area in generally northerly direction toward Tolinkin and Sama Bay. 1035 sighted two masts. See (E).

Dec. 27 - Continued toward South Hainan patrolling at 90 RPM through battery, auxiliary engine carrying float. 0725 sighted land. Steered toward it.

Dec. 28 - Patrolling South of Sama and Tolinkin Bays, Hainan Island. Last night the PORPOISE was ordered to this area. |

— page 5 —
U.S. S. SPEARFISH

(A) NARRATIVE (Continued)

Dec. 30 - Clear of area immediately South of Sama and patrolling mostly Westward and South of Hainan. Have been directed not to operate East of Longitude 110° East.

Dec. 31 - STINGRAY ordered to area within my area. 'This makes two submarines covering Sama Bay traffic so SPEARFISH patrolled generally Westward between Latitudes 17° East and 17° 30' East of Longitude 110° to attempt locate traffic Southbound from Hanoi (Haiphong). Sighted many logs and driftwood throughout the day.

Jan. 1 - Patrolled in East West direction between Latitudes 17° East and 17° 30' East as far West as 40 fathom curve.

Jan. 2 - Patrolling as before. At 0002 sighted ship bearing 050°T on Southerly course and turned toward him. Before a favorable firing range could be reached we were challenged. Submerged and located ship by periscope. It was a destroyer patrolling at low speed and he did not then appear to have spotted me. Commenced moving in for attack. At this time, as shift of planesman was made to "battle stations", the submarine broached, and target was lost to Southward. This looked like small destroyer but may have been trawler as evidenced by weak reaction after sighting me. No "pinging".

Jan. 3 - Patrolled across mouth of Tonking Gulf. No contacts.

Jan. 4 - Received instructions to shift area to Camranh Bay sector and proceeded on Southerly course at 4 engine speed.

Jan. 5 - Proceeding to new area on course 170°T, patrolling enroute. This course should cross North South steamer lane from Formosa. At 1551 sighted masts of steamer bearing 245°T, distant about 15,000 yards. Changed course to 270°T and closed target at high speed, changing course to attempt maintain bearing. 1605 sighted smaller ship in column astern of first. Ran for 1 hour and 15 minutes, when it became obvious that a better firing position could not be obtained. Since I believed the long contact gave me good data (speed 5.5, course 350°T) and the targets were in ballast I decided to fire 1 torpedo at each at range 4,000 yards. The result was two close misses as both targets sighted torpedoes after they had passed and altered course away. Had the targets been more important or torpedo supply more adequate I would have fired a two torpedo spread at each and probably hit. See (G).

Jan. 6 - Proceeding South as before. No contacts. No sights.

Jan. 7 - Proceeding as before. Shot three high stars at midnight that indicate we are about 60 miles North and 10 miles East of

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U.S.S. SPEARFISH

(A) NARRATIVE (Continued)

estimated position. No good fix had been obtained for 5 days and fathometer still out of commission. This indicates that we have had about a 1 knot southerly current instead of 2 knots on 205° as experienced on trip North.

Jan. 8 - Orders to return to base via Malay Barrier. Stars at midnight confirm the data of yesterday regarding current. Still overcast except overhead. Visibility about 6 miles. At 1910 changed course to 145° on strength of sketchy sights. Hope its right.

Jan. 9 - Proceeding as before to pass South of "Dangerous Ground". 0143 changed course to 090°. No contacts. 0840 sighted "floating island" of sea weed about 3' high and 50' in diameter.

Jan. 10 - Proceeding as before, course 080°T, toward Balabac Strait. At 0751 passed submerged submarine at estimated range of 3,000 yards. This probably Jap. 50 miles from Belabac Island.

Jan. 11 - Proceeding as before. Sighted Comiron Island Light (unwatched) at about midnight. Startling to see navigational light burning and very comforting. Left above light to starboard and continued toward Bacaron Island on course 078°T.

Jan. 12 - Proceeding as before, course 157°T. At 1526 sighted the Northwest Island of Fearl Reef and established position on same. Left it to port. Sound picked this reef up a half hour before it was sighted. Fassed through Sibititu Passage commencing about 2200. Heavy intermittent squalls but land was sighted on both sides. Orders to go to Tarakan.

Jan. 13 - Proceeding to patrol area assigned off Tarakan, Borneo. Assigned sector between 075° and 120°T from lightship. At 0811 heard submarine's screws and sighted periscope bearing 297°T at Latitude 2-48-15 North, Longitude 118-31-15 East. Could have sunk this submarine possibly had I been able to identify it as enemy. Arrived on station in early evening.

Jan. 14 - Patrolling in area just off 100 fathom curve. At 0633 sighted smoke bearing 349°T. Came to course 270° and attempted to close target at 7 knots. Was unable to close range to less than 10,000 yards on two unescorted cargo vessels of about 4,000 and 2,000 tons headed for Tarakan on course 235°T. Stayed in Northern part of sector.

Jan. 15 - Patrolling as before. 0055 sighted small ship bearing 265°T on Easterly course. As I was near S-41 and Officer of the Deck could not identify the ship as other than a submarine did not fire torpedoes but avoided and came to course 320°T. to close

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U.S.S. SPEARFISH

(A) NARRATIVE (Continued)

Tarakan Lightship by morning. 1031 sighted cargo ship bearing 3370T, distance 7 miles, on course about 240°. Closed target at high speed for over an hour at which time it became apparent that I could not head him off. Target turned inshore. I then sighted a destroyer of the MAGIRI class bearing 2360T coming between me and the cargo ship. The destroyer made a complete semi-circle around the ship at range 6,000 yards then retired to the South. I was then in rather shallow water and in such a spot that if the destroyer came within firing range he must be hit. During this time an enemy seaplane flew over me from the West.

Jan. 16 - Received orders to proceed to Balik Fapan for fuel. Nothing sighted.

Jan. 17 - Enroute Balik Fapan. Nothing sighted.

Jan. 18 - Proceeding as before. At 1434 sighted Dutch 3-engined FBY who may have sighted me as he flew over me. 1627 Dutch FBY again flew over me. What is this? Cannot get anything on vertical antennae. At 1836 surfaced and closed Balik Fapan Lightship. Took pilot on board and entered port. Did not reach dock until 2125 because of extremely low visibility.

Jan. 19 - Cleared port at daylight and proceeded toward Sourabaya in accordance with instructions. Nothing sighted.

Jan. 20 - Proceeding to Sourabaya. At 2045 received instructions to return to Balik Fapan and occupy position East of Lightship 40 miles. Reversed course and cut across shoal water at full speed.

Jan. 21 - Proceeding as before. Arrived on station toward evening and commenced patrolling East and West, reversing course every hour. Nothing sighted.

Jan. 22 - At 0503 submerged. Low cloud bank bearing from 270° to 350° looks like land cloud and checks as such with glow of fires at Balik Fapan and up coast at Soeremba. These glows have been visible off and on all night. Sighted nothing. Visibility intermittently bad all day. Sea smooth - slight swell. 1905 surfaced - obtained mediocre star sights that showed a Northernly set of .7 knots. This was first navigation check in two days. Our estimate of current good as we were only about 5 miles from E.F. Moved South to charge. Main engine #1 and 2 still throwing out enormous sparks at all loads. On completion of charge moved back to our point 25 miles East of Balik Fapan Lightship. 2300 received information enemy force moving south - probable.

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U. S. S. SPEARFISH

Jan. 23 - Patrolling on station. Visibility poor in spots. Intermittent rain. At 0445 contact report from STURGEON indicated enemy force still on 210°T at 2300 last night making 10 knots. Patrolled on East-West courses reversing every hour. At 1702 sighted smoke on bearing 081°T that turned out to be burning ship. Surfaced at 1906 and moved South to charge returning toward area at 2228. Evening stars showed us to be 16 miles East and 4 miles South of estimated position. This was first good fix in over two days. At 2355 reported "no contact" to Commander Submarines, Asiatic Fleet.

Jan. 24 - Patrolling as before. At 0344 while on course 292°T sound heard pinging on port bow. Submerged to 170° and ran silent. Sound picked up four destroyers on true bearings 020°, 340°, 310° and 280°. Changed course to 210°T. The two center destroyers eventually appeared to be pinging on us, then stopped, went ahead, and stopped again. As their bearing was changing slightly to the right I changed course to 240°T. Fortunately they got together on a school of fish or something and dropped four or five charges at an estimated range of at least 1,500 yards. They did not again pick me up although their search continued for about two hours at which time they were lost. Proceeded in generally Northeast direction for remainder of day. At 1614 a loud detonation heard to port. This did not sound like depth charge. 1914 surfaced and proceeded East to get charge at least started. Changed course to West at 2124. At 2154 ran into same destroyer outfi with again held B.T.P. "B" unsuccessfully. Evaded them to Southeast by silent running. Surfaced at 2343 and changed course to 240°T to complete charge and make run around left end toward position 15 miles East of Balik Fapan Lightship where force is reported.

Jan. 25 - Patrolling as before. At 0105 changed course to 270°T. At 0123 Officer of the Deck saw gun fire bearing about 315°T. Single flash (May have been lightning). At 0151 heard pinging bearing 245°T. Changed course to 300°T. At 0304 changed course to 292°T. Commencing at about 0900 sound heard very directional noises on three bearings on bow, a crackling noise with 2° to 3° band. It seems improbable but the Japs may have some new fangled gadget that they drop. These noises were long continuing and were not screws as I circled all around them and there was nothing in sight. At 0951 sighted 50 plane bearing 265°T. At 1001 series of bombs dropped, none near but all distinctly heard. Sound like marbles dropping on the floor. 1005 destroyer bearing 285, distant 8,000 yards, patrolling and pinging. At 1138 sighted blobs of smoke bearing about 300°T that appeared to be well inshore. I was then about 12 miles from lightship. At 1344 sighted destroyer bearing 316°T. Changed course to 310°. 1427

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U. S. S. SPEARFISH

(A) NARRATIVE (Continued)

smoke bearing 342° and 346°T. At 1621 sighted destroyer bearing 250°T on course 055°, angle on bow 20°, distance 8,000 yards. Made tubes ready. On next look there were four of them who had come out at high speed and fanned out to westward in searching formation along a line Northeast - Southwest. At 1706 retired to Eastward, done out. 1909 surfaced on course 090° to charge. At 2030 received instructions to proceed to base.

Jan. 26. - Proceeding to base at Sourabaya. Patrol led off Cape Mandai during day. No contact.

Jan. 27 - Transited passage to Westward of Kalu Kalukuang Island at high speed surface. Encountered a 2 knot East North East set off Sibalds Bank. No contacts.

Jan. 28 - Proceeding as before. No contacts.

Jan. 29 - Entered Sourabaya.

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55

IN REPLY
REFER TO NO.
SECRET

U.S. S. SPEARFISH

(B) WEATHER:

Dec. 8 - 12 - Weather moderate with generally good visibility.

Dec. 13 - 20 - Wind and seas from Northeast varying from force 3 to 6 with intermittent squalls and overcast skies.

Dec. 21 - 23 - Visibility and weather mostly good. Long swells from Northeast.

Jan. 4 - 8 - Rainy and overcast. No good navigational fixes.

Jan. 9 - Visibility good except for horizon haze.

Jan. 10 - 11 - Visibility excellent. Sea smooth.

Jan. 12 - 13 - Intermittent rain squalls.

Jan. 14 - 17 - Clear and calm. Sea glassy.

Jan. 18 - Heavy rainfall over Balik Japan area.

Jan. 19 - 20 - Surface haze. Calm seas.

Jan. 21 - Clear and calm except toward Balik Japan where there was heavy smoke.

Jan. 22 - 23 - Visibility fair except to North and Northwest.

Jan. 24 - Visibility good, calm sea.

Jan. 25 - 29 - Clear and calm except for occasional rain squalls.

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U.S.S. SPEARFISH

(D) NAVIGATIONAL AIDS:

Dec. 8 - Cabra Island Light.
Dec. 8 - 24 - Fixes were usually obtained during this period at some time during the night. Some of the sights taken around midnight were surprisingly good.

Dec. 25 - Kulao Rai Island in sight most of day.
Dec. 27 - 28 - Sighted landmarks around Tolinkin Bay.
Dec. 29 - Jan. 10 - Star sights except for four day period off Indo China Coast.

Jan. 11 - Sighted Balabac Island at about 2100 and Comiron Island Light (unwatched) at midnight.
Jan. 12 - Sighted Western Island of Fearl Reef at 1600 and Sibutu Island at 2100

Jan. 13 - 14 - Evening stars.
Jan. 15 - Evening stars and Tarakan Lightship at about 1200.
Jan. 16 - Evening stars.
Jan. 17 - Evening stars and Mangkalihat Point.
Jan. 18 - Balik Papan Lightship at 1800. Entered harbor in heavy rain with pilot.
Jan. 19 - Balik Papan Lightship at 0600, proceeding out. Sighted Cape William at midnight.
Jan. 20 - Cape Mandar in sight all day.
Jan. 21 - Poor evening and night sights.
Jan. 22 - Poor sights.
Jan. 23 - 25 - Evening stars - good fix.
Jan. 26 - Sighted Cape William and Cape Mandar.
Jan. 28 - At 1530 sighted Secala Island.
Jan. 29 - Made landfall on Java coast and picked up Meinders Reef Light at 0230.

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19 - Sighted white and/or green very signal. Did not identify.

: 20 - 1030 - 3 submarines on surface irregular column, course about 320°, speed 14. These submarines resembled I6 class except they had cable cutters. At least 8 lookouts on bridge. Position 12 miles Southeast of entrance to Camranh. 1210 - sighted 1 submarine, class unknown, on course 350°, speed 14, at about same place.

: 22 - Tramp steamer of 2,000 tons on Northerly course near Indo China coast, speed about 8 knots.

: 26 - 1052 sighted two masts with similar crows nests, Latitude 17°-13' North, Longitude 109°-30' East. Investigation showed these to be two trawlers either tending nets or conducting mining operations. They were sister ships, steam driven, of about 150 tons.

: 2 - Destroyer or trawler in sight for about 10 minutes then lost on Southerly course, speed about 6 knots.

: 5 - Two merchantmen of 4,000 and 2,000 tons on course North, speed 6, at 1550 L.C.T. Position about Latitude 13°-43' North, Longitude 110°-13' East.

: 10 - Submerged submarine on opposite course 50 - 60 miles bearing 260°T from Balabac Straits. Turn count of 120 and 160 RTL.

: 13 - Sighted 10' of submarine periscope, range about 2,000 yards, at Latitude 2-48-15 North, Longitude 118-51-15 East. Course probably North - no speed count.

: 14 - 0833 sighted two two masted cargo ships of about 4,000 and 2,000 tons, Latitude 3-16-45 North, Longitude 118-26-40 East, course 235°, speed about 10 knots.

: 15 - One cargo ship, 4,000 tons, two masted with cranes forward and aft entering Tarakan and destroyer of AMACRI class.

: 23 - Burning tanker 50 miles due East of Balik Fapan Lightship. Moved 20 miles East to investigate. No other ships near. This ship burned for two days with occassional flares.

: 24 - At 0345 four destroyers with Asdic equipment patrolling about 25 miles East of Balik Fapan Lightship located me and dropped depth charges. 1614 loud detonation shook ship. At 2154 was picked up by Asdic of same destroyers about 25 miles East South East of lightship.

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U.S.S. SPEARFISH

(E) CONTACTS (Continued)

Jan. 25 - Sound heard directional noises discussed under (A). Many bombs dropped around me commencing about 0930. At 0951 sighted SO plane who flew over me. At 1005 destroyer bearing 285°T, distant 7,000 yards, and pinging. 1136 blobs of smoke far away toward beach. 1344 destroyer bearing 310°T, distant 6,000 yards, and 1621 four destroyers bearing 250°T, distant 6,000 yards, and patrolling a line 055° and reverse at an interval of about 4,000 yards. These destroyers are all of AMAGHL class.

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IN REPLY
:  REFER TO NO.
:  SECRET
:  U.S.S. SPEARFISH

(F) AIRCRAFT SIGHTED:

Jan. 15 - One SO off Tarakan Lightship meeting incoming traffic and patrolling entrance.

Jan. 18 - Netherlands FBY scouting over Balik Japan area.

Jan. 25 - SO planes about 10 miles East of Balik Japan Lightship.

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U.S.S. SPEARFISH

(1) ATTACKS:

Dec. 20 - At 1022 while on course 000°T, sound reported a disturbance almost dead ahead that might be propeller noises. After a thorough periscope search ahead revealed nothing. I ordered left rudder to see if noise was local or possibly a submerged submarine. Settled on course 270°. Sound had followed noise on same true bearing. I then came to 58° and made a thorough search all around.

At 1030 sighted an enemy submarine on the surface bearing 110°T, on course 310°T, angle on the bow about 20° port, distance about 7,500 yards. Ordered hard right rudder. Went to battle stations and ordered the tubes made ready.

When a minute or so later battle stations were manned and T.D.C. was ready I made another observation. The target appeared to have changed course to the right about 15°. I then noticed two more submarines astern of first in an irregular column. I directed the Assistant Approach Officer to come to the "normal" or perpendicular course and ordered the ship taken to 100°. At 80° ordered "all ahead standard". I had coached sound on the leading target and their bearings were coming in regularly.

My mind then shifted to the fire control problem. I described the targets to sound and the T.D.C. operator and informed the latter that I would fire a two torpedo spread with an offset of about a target length at each of the first two targets. I then intended to swing the ship to bring the stern tubes to bear on the third.

Now here is where the jinx came in that prevented my reaching a more favorable firing position. When the regular helmsman, who unfortunately happened to be an inexperienced seaman on his first trip, received the order "hard right rudder" he put the rudder over. But when he wasn't informed of the new course shortly thereafter he, according to his own words, "thought he had better come back to the course he was on before", 270°T, which he did. This course was turned over to his battle section relief instead of 058° - the normal course. Thus during the period of about 8 minutes until the next observation, when I thought I was closing the target at 6 knots, we were actually increasing the distance to the target track.

The mixup was obvious when on the next observation I was unable to find targets on starboard bow where they should have been. Upon matching with T.D.C. and sound the targets were found bearing 130° relative, 025°T, with an angle on the bow of 75° to 95° port, ranges about 5,000 yards. I again ordered "hard right rudder, all ahead full", to reduce the gyro angle, and ordered the torpedoes set for slow speed. Because of the importance of these targets I decided to fire a full nest with point of aim of first two torpedoes between the first and second targets and of the last two between the second and third in the forlorn hope that

— page 17 —
U. S. S. SPEARFISH

ATTACKS (Continued)

they would reach. The data, course 516, speed 15, seemed reasonably accurate. <The torpedoes were fired at generated range 6,300 yards at 5 second intervals but as the average run of torpedo was about 9,000 yards it is probable that they did not reach their targets. No action was taken by targets to indicate that they had sighted torpedo tracks.>

| Time of firing | - | 1056 |
||--|------|
| No. of torpedoes fired | - | 4 |
| Method of firing | - | T.D.C. |
| Points of aim | - | 1st 2 - 1/2 target length ahead center submarine. 2nd 2 - 1/2 target length astern center submarine. |
| Enemy course | - | 318 |
| Enemy speed | - | 15 |
| Spread | - | divergent |
| Hits | - | None |
| Results | - | No action by enemy. |

Jan. 5 - Fired 1 torpedo from bow tubes at each of two enemy merchantmen or tankers in ballast, course 350, speed 5.5 knots.

| Torpedoes fired | - | 2 |
||--|--|
| Method of firing | - | T.D.C. |
| Point of aim | - | M.O.T. |
| Track angle | - | 155°(S) |
| Hits | - | None. |
| Results | - | Torpedoes ran straight and hot at 10' derth. Targets turned away after torpedoes passed. |

BB 557

— page 18 —
U. S. S. SPEARFISH

(H) EVASION AND ESCAPE TACTICS:

Four patrolling destroyers were twice evaded by changing course about 45° away and running silent at deep submergence. I was able to go around the end of the line of destroyers by continuously plotting their positions through sound bearings on their Asdic or screws. Meanwhile the destroyers lost the submarine and dropped their depth charges at least 800 yards away.

Single destroyers were evaded by silent running at periscope depth.

The interval between destroyers on inshore patrol appeared to be about two miles. When destroyers were encountered searching for submarines at night at Balik Epan their interval was about three miles.

28.558

— page 19 —
15 December 1941, 1500:
No. 9 unit, No. 4 main engine. All piston rings broken and babbitty band on piston melted away. No damage to supercharger valve. Repairs completed 1600 on 16 December 1941. Time delayed 25 hours.

16 December 1941, 2100:
Started No. 2 auxiliary engine with jacking gear engaged. Damage sustained (1) broken circulating water line to generator air cooler, (2) slight misalignment of generator flexible coupling causing fan to rub on casing. Temporary repairs were made by threading insid of flanges and making up line of copper pipe. Placed 1/16 inch gasket between fan housing and generator to prevent fan rubbing on housing. Repairs completed on circulating water line on 17 December 1941 at 1700 and on casing 21 December 1941 at 1200. Time delayed 4 days 15 hours.

12 January 1942, 0200:
Leak in port clutch filling pump discharge line caused by contact with gauge line. Repaired by silver soldering, completed 12 January 1942 at 2200. Time delayed 20 hours.

28 January 1942, 2100:
Circulating water drain valve on No. 2 auxiliary engine vibrated open and quickly flooded bilges to a depth of about 15 inches. Engine flywheel picked up water and threw it into No. 2 auxiliary generator. Repairs will be completed in Sourabaya.

29 January 1942, 1000:
No. 1 main engine fresh water system became air bound causing the engine to overheat. The engine had to be seared. It is suspected that at least one cylinder head is cracked. This is the third casualty of this nature to occur on the SPEARFISH during the last six months. Repairs will be effected in Sourabaya if possible.

— page 20 —
1. Meal hours were gradually shifted to turn night into day and it works well.
2. We were able to utilize about 80 gallons of condensate from air conditioning daily. This may be used for batteries.
3. When sights are not available and fathometer is out of commission as mine was all of trip navigation is a serious problem.
4. Balabac Strait could be well guarded by enemy against our passage.
5. The patrol vessel was not at point designated for rendezvous but was at point "U". This necessitated a daylight entry in water suitable for enemy submarine operation.
6. I failed to make the most of my opportunities in the early part of this patrol through over cautiousness and not covering maximum territory at night that I might have. My experience at Balik Papan and at Tarakan is that our best chance of success is to intercept the enemy in deep water while in transit, particularly at night. Screens can be much more easily pierced if the convoy is in transit. Destroyers are then on defensive.
7. We must shoot down some destroyers to teach them respect. This also can best be done on moving convoy. When protecting a convoy inshore destroyers on patrol change course and speed too often to get reasonably good setup on them.
8. Navigation is all important and was a contributing cause for my failure to intercept convoy at Balik Papan before they arrived inshore. I had been over 48 hours on dead reckoning and ended up 17 miles out of position due to a current that had not been encountered in the same area before.
9. Night binoculars are considered my most urgent military necessity. We should have more spare 7-50 glasses if night glasses cannot be obtained. There were only two pairs of 7-50 glasses fit to use after the first month of the patrol although every effort was made to protect and repair them.
10. No difficulty was experienced with fresh or battery water. Almost all bathing and laundry was done with condensate from air conditioning.
11. Time ticks were hard to get due to interference.
12. While in the South China Sea radio faded out almost every night commencing about midnight.

— page 21 —
13. Local sound noises require that every single piece of non-essential superstructure be removed.

14. The SPEARFISH has not had an uninterrupted upkeep period since leaving the Navy Yard in June 1941. All main engines now have over 1200 engine hours since overhaul and major casualties may be expected in the near future due particularly to broken rings.

R. F. PRICE.

— page 26 —
1706 28 DEC 1836 28 DEC 1910 28 DEC 1900 28 DEC 2000 29 DEC 2232 25 DEC 0245 28 DEC 0218 28 DEC 2003 26 DEC 2050 20 DEC 0103 30 DEC 1905 29 DEC 1850 20/5 30 DEC 0000 30 DEC 16-50 16-40

— page 32 —
7 February 1942 to 1 March 1942

| AREA | LATITUDE | LONGITUDE | EASTING | WESTING |
|------|||||
| 1    | 7-15     | 116-30    | 16      | 30     |
| 2    | Poelase    | Java      |         |         |
| 3    | Enroute    | Tjilatjap, | Java   |         |
| 4    | North of  | latitude 7° | South, | on Dewaking |
| 5    | Island -   | Lombok    | Strait  | line.   |
| 6    | 20 miles  | bearing 246° | from De | Bril Rock. |
| 7    | Enroute    | Tjilatjap, | Java   |         |

ZONE TIME KEPT: minus seven and one half (-7 1/2).

FINAL NOTE:

— page 34 —
7 Feb. - At about 1830 cleared Sourabaya Western entrance and commenced patrol on Easterly course (078°), speed 14.

: 8 Feb. - Proceeding as before. 0500 changed course to 090°T and submerged. At 1854 surfaced and went ahead, speed 13 knots. At 2034 received instructions to proceed to 116°-30' East. Changed course to 177°T.

: 9 Feb. - Proceeding as before. 0200 arrived on station and commenced patrolling East and West, reversing course every hour. 0457 submerged. 1901 surfaced. 2100 received instructions to proceed to Eastward, South of de Brill Bank and Kaloa Island. Changed course to 066°T, speed 13 knots.

: 10 Feb. - Proceeding as before. 0302 changed course to 077°T. 0454 submerged. 1041 sighted de Brill Bank bearing 024°T, distant 9 miles. 1048 changed course to 090°T. 1308 changed course to 137°T. 1604 conducted emergency drills and exercised at battle stations. This repeated every three days when circumstances permitted. 1839 surfaced, ahead 13 knots. 2139 received instructions to patrol main channel South of Poelasi and to Westward. The cruisers reported 45 miles. Northward of the shore. Changed course to 092°T. 2400 arrived on station and commenced patrolling East and West between islands and outer reefs to Westward.

: 11 Feb. - Patrolling as before. 0435 submerged. 0538 sighted Poelasi Island and Tana Jampea Island. 1842 surfaced and continued patrol on #1 auxiliary engine.

: 12 Feb. - Patrolling as before. 0430 sighted what is believed to have been a plane on fire and falling on bearing 020°T, distant about 20 miles. Sound heard detonation at same time object hit water sending up large reddish orange flare. 0438 submerged. 1340 while on course 280°T sighted 2 light cruisers bearing 284°T, distant about 7 miles, zig zagging on generally Easterly base course. Delivered 4 torpedoes attack unsuccessfully. See (G) for details. 1405 fired 4 torpedoes. 1419 changed course to 180°T to intercept and attack second cruiser which had turned around and headed back from Westward and appeared to be trying to move out of strait to Southard. Ordered reload of forward tubes depth 100'. 1424 came to periscope depth for observation but before periscope was raised the above mentioned CL delivered a depth charge attack of 8 charges. It is believed the charges were dropped on port quarter distant about 150 - 200 yards. Went to depth charge stations and to 260'. Damage sustained as follows; #2 periscope cable parted at both anchors, allowing scope to drop and damaging lower limit switch and knocking off lower shaft gyro repeater fuses blown and bridge steering repeater grounded; pressure gauge broken on #7 torpedo tube; torpedo and exploder

— page 35 —
U. S. S. SPEARFISH

(A) NARRATIVE (Continued)

flooded in one tube. The outer doors were open aft when first charges fell. It is possible that a successful attack could have been delivered on this CL coming in had I counted on his purpose and speed. Sound did not hear his high speed screws coming in because of the noise of the reload in the forward room. Ran silent and deep for about 1 hour at which time came to periscope depth. The CLs had disappeared, probably to Eastward. Continued patrol. 1842 surfaced. 1930 reported attack and damage sustained to the Commander Submarines, Asiatic Fleet. 2000 received orders to shift to new station East of Mindanao, passing South of Kulao.

13 Feb. - 0100 received orders to proceed to HOLLAND at Tjilitjap. Changed course to 240°T and went ahead on 4 engines. 0230 changed course to 265°T. 0428 submerged. 1838 surfaced. 2112 changed course to 272°T.

14 Feb. - 0454 submerged. 0510 changed course to 281°T. 1319 made landfall bearing 289°T (Zambuis Light). 1345 changed course to 180°T. 1503 changed course to 225°T. 1842 surfaced. 2017 stopped and proceeded with caution toward entrance Alas Strait on battery. 2221 made landfall, visibility poor but was able identify right entrance island. 2333 ahead on all engines course 210 and transited Alas Strait.

15 Feb. - 0130 Point Ringit abeam to starboard. 0218 changed course to 270°T. 0504 submerged. 1855 surfaced and went ahead on all engines as they were secured from charge.

16 Feb. - 0514 submerged. 1238 changed course to 295°T, 303 psc. 1901 surfaced and went ahead on all engines as they were secured from charge.

17 Feb. - 0021 sighted small unidentified ship broad on port bow and altered course to avoid as it was presumed to be friendly. 0330 changed course to 288. 0538 submerged. 0800 succeeded in raising #2 periscope and effecting temporary repair, optics are apparently undamaged. 1832 changed course to 305°. 1910 surfaced and changed course to 320°T. 1949 changed course to 300°T. 2000 arrived at rendezvous, point "J", and took pilot aboard. Heavy rainfall made entry inadvisable. 2045 anchored.

18 Feb. - 0019 underway to enter harbor of Tjilitjap. 0200 anchored in lower harbor. 0637 underway. 0744 moored to USS PECOS and took 16,550 gallons of fuel. 0825 received 8 torpedoes from HOLLAND and transferred 6. 1130 underway. 1236 moored to port side of HOLLAND, and commenced emergency repairs to periscope cables, main motor circulating water system, gyro repeaters, and installation of wet exhaust for #1 and #2 main engines.

— page 36 —
19 Feb. - Moored as before. 1700 underway and proceeded out of harbor on War Patrol after dusk. 1940 set course 086°T. 2039 sighted unidentified ship that might have been USS SEARK. Avoided by turning to South. 2102 changed course to 113°T.

: 20 Feb. - Proceeding as before. 0512 submerged. 1500 changed course to 150°T. 1919 surfaced and proceeded speed 13 knots. 2036 changed course to 095°T on Latitude 09° South line.

: 21 Feb. - Proceeding as before. 0459 submerged. 0549 sighted N.E.I. 3-engined bomber on port bow. 1155 changed course to 045°T. 1739 changed course to 090°T. 1900 surfaced. 2206 sighted Misa Besar Island bearing 050°T. 2315 changed course to 060°T.

: 22 Feb. - Proceeding as before. 0015 changed course to 020°T and transited Lomboc Strait piloting. 0444 changed course to 027°T. 0447 submerged. 1209 sighted periscope bearing 070°T. As this might have been own submarine avoided it. 1440 sighted PBY plane bearing 300°T 1903 surfaced. 1918 changed course to 032°T.

: 23 Feb. - 0000 changed course to 040°T. 0431 submerged and commenced patrolling on station, course 220 and reverse. 1852 surfaced. 2015 received orders to proceed to new area Southwest of de Bril Bank in 40 mile lane. Changed course to 075°T. 2154 changed course to 066°T and proceeded up designated track with sound heads lowered, speed 6 knots.

: 24 Feb. - 0130 sound reported screws bearing 145 relative that sounded like submarine screws. As I was in SEAL area, went ahead 13 knots. 0322 sighted two ships on opposite course distant about 4000 yards, 60° on starboard bow. Stopped engines went to battle stations and made tubes ready. Changed course to the right sharply. 0327 sound reported screws on starboard quarter making high speed. Went ahead standard. I could not see ship on starboard quarter due to rain cloud there but as sound reported that they were close aboard and speeding up I presumed that I had been sighted by screen. 0330 submerged. I had now lost my targets and went deep. No depth charges were dropped but a ship passed close aboard astern, then stopped and searched. 0451 sent out contact report to Commander Submarines, Asiatic Fleet. 0521 sighted two destroyers proceeding in my direction at high speed from 070°T. As no large ships were in sight I went to deep submergence, 260°, and depth charge stations when DDs reached range 5000 yards. Shortly after this the DDs, who were eventually joined by 4 others, searched my area for a period of three hours. Many times they seemed to be on me as evidenced by automatic keying and double and triple pinging. They were all around me. Sound eventually picked up a heavy screw and at 0800 I started to periscope depth only to have a high speed DD go over the ship.

— page 37 —
25 Feb. - 0445 submerged. 1150 while at periscope depth, sound reported hearing 3 air noises and shortly afterwards heard torpedoes running. Nothing was in sight. Dived to 150'. Sound followed the noise from the starboard to port quarter in an interval of 3 minutes. It is presumed that an enemy submarine fired at me although no submarine propeller noises were ever heard. At 1303 while on course 270°T, sighted two CA of the ATAGO class escorted by two DD bearing 085°T on course 285° distant about 8000 yards. Went to battle stations and delivered a 4 torpedo attack. See (G) for details and results. 1321 fired 4 torpedoes from bow tubes and altered course to the left, went to 260' and to depth charge stations. One DD was then on my port quarter distant 300 yards but I was inside his turning circle. 1322:30 second cruiser in column passed overhead. 1329 DD delivered counter attack. Two depth charges exploded almost directly overhead and slightly to port. No damage was sustained. One DD remained in my vicinity for almost two hours. 1530 made periscope observation. One DD to Westward distant 6000 yards and proceeding to join main body. 1901 surfaced and changed course to 105°T and made contact report to Commander Submarines, Asiatic Fleet. I am bitterly disappointed at having failed to make the most of it after having attained a favorable attack position. I feel that my judgement was not normal due to physical and mental strain that resulted in my nervousness at that all important moment just before firing. I have reported this to Commander Submarines, Asiatic Fleet, and believe that I am wasting time, and a submarine's efforts when I expose it to attack and then fail to realize on the risk. I need rest. Am proceeding South toward barrier. 2240 received orders to go to Sourabaya where I will be relieved of command. Hope this is only temporary. 2245 ahead on all engines, course 285°. 2350 change course to 270°T.

26 Feb. - Proceeding as before. 0110 changed course to 250°T. 0434 submerged. 1250 sighted two light cruisers with two DD escort bearing 210°T. Went to battle stations. This force was zigging and DDs both pinging on sound gear. 1257 changed course to 205°T and headed for targets whose range was now about 10000 yards. 1309 targets changed course about 40° to left which put them on course 350°T. 1310 came right with hard rudder and increased speed to 6 knots. 1314 steadied on course 270°T. 1322 target course 018°T, range 5000 yards. 1323 changed course to 300°T. 1339 changed course to

— page 39 —
1/52

IN REPLY
REFER TO NO.
SECRET

U. S. S. SPEARFISH

(B) WEATHER:

7 - 10 Feb. - Clear, calm, bright moonlight. Occasional small squalls and overcast skies in some directions. Wind generally W2 sea moderate to calm.

11 Feb. - Squally - mostly good visibility.

12 Feb. - Clear, good visibility, sea moderate.

13 - 17 Feb. - Same as above with occasional light rain and overcast over land areas.

18 Feb. - Heavy rainfall all night at Tjilatjap. Fair to good visibility at sea.

19 Feb. - Fair to good visibility, moderate sea, slight westerly breeze.

20 - 22 Feb. - Same as above.

23 Feb. - Calm glassy sea, wind 0, moonlight bright and visibility bright moonlight is ideal for periscope approach but bad for battery charging and surface patrolling.

— page 40 —
12 Feb. - Currents encountered North of Malay Barrier agree with Coast Pilot. Generally about 1.3 knots in an Easterly direction when prevailing wind is from West.

: 14 Feb. - Current through Alas Strait is unpredictable and runs up to 4 knots in direction of channel.

: 15 - 18 Feb. - Current South of Malay Barrier averaged about .3 knot Easterly and of course is variable when passing the entrance to other straits.

: 18 Feb. - 3 Mar. - Tidal currents only were encountered during this period.

— page 41 —
7 Feb. - Departure Sourabaya Light Ship (Western) and star sights.
: 8 - 9 Feb. - Evening and morning stars.
: 10 Feb. - Stars. 1041 sighted de Bril Bank.
: 11 Feb. - 0538 sighted Paelasi and Tana Jampea Islands.
: 12 Feb. - Islands above mentioned in sight.
: 13 Feb. - Stars.
: 14 - 18 Feb. - Land areas around Alas Strait. Piloted all along South of the Barrier.
: 19 - 28 Feb. - Land areas of barrier and in Lombac and Alas Straits.
: 1 Mar. - Approaches to Tjilatjap.

— page 42 —
12 Feb. - At 1340 sighted two light cruisers, NATORI class, on course 015°T, speed 14 knots, zigging, latitude 6-50-00 South, longitude 150-23-00 East. At 1400, targets changed course to 100°T, heading apparently for the strait south of Poelase Island.

: 24 Feb. - At 0521 sighted two destroyers bearing 070°T, course 245°T, speed approximately 20 knots, latitude 6-39-00 South, longitude 117-38-30 East.

: 25 Feb. - At 1301 sighted four ships, two heavy cruisers of ATAGO class escorted by two destroyers of HATSUHARU class, on course 285°T, speed 15 knots. Latitude 6-14-00 South, longitude 118-38-00 East.

: 26 Feb. - At 1250 sighted two light cruisers of NATORI class escorted by two destroyers of SHIGURE class, zigzagging, course 005°T, speed 12.5 knots. Latitude 6-55-30 South, longitude 117-08-00 East. At 1345 targets turned away to course 315°T.

— page 44 —
25 Feb. - At 1303, in Lat. 6-14 South, Long. 118-38 East, sighted two heavy cruisers of the ATAGO class in column, angle on the bow 12° starboard, range 7000 yards. There were two destroyers acting as protective screens, one on each bow of the leading cruiser at a distance of about 1500 - 2000 yards. Went to battle stations. At 1305 the enemy were observed changing course to the right about 25°, presenting a port angle on the bow of about 10°. The zig was made as a ship's turn rather than column movement and indicated that the previous course was nearer to base course. Since the sea was calm and glassy it was decided that a "sound" approach presented the best chance of successful attack without detection. Went to 120°, changed course to 205°T, made tubes ready forward and aft, and ran at dead slow speed. This put the submarine in the best position across base course for either a bow or stern shot.

Sound was surprisingly unable to differentiate between the targets and the screens. Their bearings were inconsistent except on one ship which from the pictures left in my mind from periscope observation was obviously one of the screens. Sound obtained a doubtful turn count of 140 RPM on this ship and a relative bearing of 250° on his screws.

I then decided that it was necessary to make another periscope observation for TDC setup and to coach sound on the proper target. Regardless of the probability of detection in glassy sea at 1312 ordered the ship brought to periscope depth. At 1319 made periscope observation. The enemy formation had zigged to the left about 30° and the targets were headed across bow of submarine, relative bearing of leading cruiser 330°. As the starboard screen was then close aboard on the port quarter, relative bearing about 220°, I decided that I must fire as soon as possible. At 1320 ordered full left rudder and fired a four torpedo spread at the leading cruiser, range 900 yards, zero gyro angle, depth setting 10 feet, track angle 110° starboard to 85° starboard. Enemy speed was estimated at 15 knots and a lead angle of 19° was used with the point of aim of first shot the foremast.

Hard left rudder had been ordered just before firing in order to fire earlier but was left on too long and the ship was swinging faster than desired. Hard right rudder was ordered after the second shot but the helmsman was unable to check the swing. The firing bearing of the last two shots was not observed. As they were fired on time and "wild", you might say, it is presumed that they passed well astern of the target. I had then swung around to observe the starboard screen who was now close aboard my port quarter. Went to 260° fast and manned depth charge stations and altered course to the left with hard rudder. On our way down the second cruiser passed directly overhead. No opportunity was afforded to observe results except that the first two torpedoes were seen to run. The track of the first appeared to be headed just forward of the stern of the target and the second slightly to the left. The first torpedo was cutting up considerable fuss in the water - almost like a

— page 46 —
12 Feb. - Two unescorted cruisers zigging radically - 90° - 45° - 45°, etc., Attacked one and the other counterattacked with depth charges. The CL came down the torpedo track at high speed from 7000 yards and caught me by surprise. His eight charges came surprisingly close and inflicted minor damage; see (I). Went deep and ran silent. No further attempt was made by the CLs to search or attack. They retired to Eastward.

24 Feb. - A small vessel of high speed evidently sighted the SPEARFISH as an attempt was started to attack two other ships. This ship came in fast on the starboard quarter out of a rain cloud and forced the submarine down. After passing astern he stopped, and maneuvered in the vicinity for about an hour. The submarine ran "Silent" at deep submergence then came to periscope depth. Nothing in sight. About 1 hour after making contact report two DDs followed by four others came in from ahead (070°) and made a thorough search for me, for almost 3 hours. Deep submergence, silent, avoided definite detection but I'm afraid it also caused me to miss a possible target. The DDs all had Asdics 19-20 kcs. and used automatic keying on contact. Eventually I ran underneath three of them and continued on my patrol line. These DDs were evidently assigned to locate and patrol against submarines all along the de Bril Rock, Kangean Island, line. They obtained my approximate position either from my radio broadcast or perhaps one of them was the ship that had forced me down an hour or so earlier.

25 Feb. - At 1150 an enemy submarine or plane fired 3 torpedoes at SPEARFISH which passed overhead and astern. At 1303 to 1322 penetrated a 1500 yard DD screen and delivered attack on CA without detection. 1 DD delivered counter-attack after firing and searched with Asdic for 2 hours afterward.

26 Feb. - At 1250 sighted two CLs with DD screen on bows. DDs were pinging and obviously picked up the submarine at about 4000 yards while attempting to penetrate. The formation was stopped and their course altered away by General Signal. Our sound gear was able to get an accurate range of the starboard screen from the double echo when he was pinging directly on us. This is important information.

— page 47 —
1. The provision of wet exhaust for the forward engines was a very comforting improvement and appears to be satisfactory. This alteration should be accomplished on #3 and #4 engines as early as practicable.

2. Night binoculars - 7-50 type - should be flown out here immediately.

3. On 27 February lost lub oil pressure on #3 main engine due to broken relief valve spring on the pump. Renewed spring.

4. Lower limit switch of #2 periscope inoperative.

5. Radars should be provided along with electric stills although this ship has no difficulty keeping up with water.

6. On 12 February depth charge attack caused periscope cable to part at anchors. The scope dropped about 1 foot and broke off lower lug, damaging the lower limit switch. No damage to optics. The steering repeater on bridge was grounded out and flooded. A tube pressure gauge on #7 tube was broken and torpedo, including exploder, flooded.

— page 48 —
U. S. S. SPEARFISH

(J) REMARKS:
1. Silhouettes of our submarines should be reduced to an absolute minimum for night work. All from SARGO class on, particularly, are vulnerable because of enormous bridge superstructure and inadvisability of flooding down in a seaway.

2. Radars, of course.

3. Electric stills are desirable but not essential.

4. Wet exhaust is a "must" and that recently installed on SPEARFISH at least works now. Carbon sparks from #1 and #2 main engines were previously visible about 3 miles at certain loads.

5. The health of my crew is beginning to wane as evidenced by an enormous increase in colds. More than half the officers and crew are affected.

6. Night binoculars should be obtained immediately if possible.

7. Inshore work against an alert DD patrol is practically impossible without detection. And then there is no depth for evasion. This type can evade best at deep submergence running silent - that means everything silent.

R. F. PRICE.

— page 49 —
11/2/47
: 15:45
: USS SPEARFISH
: 1943
: 1/6/43
: TRACK CHART
: INDIAN OCEAN
: SUMMER
: FLORES
: FLORES
: SALIER

— page 50 —
7:30
: 7:00
: 6:30
: 6:00
: 5:30
: 5:00
: 4:30
: 4:00
: 3:30
: 3:00
: 2:30
: 2:00
: 1:30
: 1:00
: 0:30
: 0:00
: 0:30

— page 57 —
3
IN REPLY
REFER TO NO.
CONFIDENTIAL
U.S.S. SPEARFISH
1. BRIEF NARRATIVE:

Friday, March 27, 1942.

1230 - Departed Albany enroute Fremantle via bombing restriction route, in accordance ComSubs serial S511(F6-4/Al6-3) of March 25, 1942. All machinery in commission, normal and reserve lub oil and diesel oil aboard, provisions for 90 days. 65 men, 6 officers aboard. 24 torpedoes - 4 in each nest (8' - 10' - 8' - 10'), 8 in racks forward torpedo room, 4 in racks after torpedo room and 4 in deck storage.
1400 - Arrived 1/2 mile west of Point Cast, changed course 185(T) and submerged for trim and aircraft observation. Examined crew at battle stations.
1500 - Surfaced, set course 180(T) and proceeded at 12 knots, weaving 15-20 degrees to right and left of base course.
1610 - Changed course 272(T).
1644 - Submerged to 150' upon sighting silver colored plane bearing 190(T), distant 4-5 miles on course 090(T). Exercised crew at drills.
1800 - Sighted USS TULSA bearing 345(T) range 5000 yards, zigzagging on base course 110(T), speed 10 knots. Changed course 230(T) to clear area.
1854 - Surfaced on course 230(T), speed 12 knots. Charged batteries and air.
2012 - Changed course 272(T), speed 12-15 knots.
2052 - Changed course 279(T).
2149 - Changed course 220(T) upon sighting merchant ship bearing 306(T), range 8000 yards, on course 140(T), speed 8 knots.
2212 - Changed course 279(T).
2215 - Secured battery charge.
2225 - Changed course 281(T).

Saturday, March 28, 1942.

0229 - Changed course 308.5(T).
0550 - Commenced weaving 20 degrees right and left of course.
0731 - Changed course 306(T). Speed 12.5 knots.
1130 - Ceased weaving.
1232 - Changed course 330(T).
1329 - Changed course 000(T).
2105 - Changed course 021(T).
2153 - Sighted Rottnest Island light bearing 037(T) distant 30 miles.

Sunday, March 29, 1942.

0215 - Changed course 050(T).
0430 - Contacted escort ship USS ISABEL and followed thru sweep channel.
0733 - Submerged for aircraft inspection on course 270(T).
0751 - Surfaced and proceeded thru swept channel astern USS ISABEL.
0856 - Picked up Lt. Comdr. Mumma, USN, to act as pilot and proceeded into Fremantle harbor.
0925 - Moored alongside USS PIKE, at North Quay, Fremantle, West Australia.
1015 - Fueled from USS OTUS (5550 gallons).

— page 58 —
1745 - Departed Fremantle, West Australia, enroute patrol station along Roti Strait - Darwin line via bombing restriction area in accordance ComSubsAF Operation Order No. 7 of March 29, 1942.
: 1944 - Arrived Point "D", changed course 325(T), speed 15 knots on #1, 3, and 4 main engines. Course line 6 miles to eastward of centerline of bombing restriction area.

Monday, March 30, 1942.

0802 - Sighted PBY plane. No recognition signals observed.
0950 - Changed course 352(T) enroute patrol area via bombing restriction zone.
1210 - Reduced speed to 13 knots, and commenced running on forward engines due to following sea which passed thru main induction outboard valve and entered after engine room so that possibility of grounding of main motors due salt water became imminent.
1508 - Sighted unidentified single wing patrol plane bearing 235(T) distant 6 miles, possibly PBY plane. Commenced riding vents.

Tuesday, March 31, 1942.

0223 - Changed course 016(T).
0716 - Increased speed to 15 knots on #1, 3, and 4 main engines.
2017 - Changed course 040(T). Visibility excellent due moonlight.

Wednesday, April 1, 1942.

0800 - Changed course 044(T). Speed 15 knots, 1, 3, and 4 main engines (255 RPM).

Thursday, April 2, 1942.

0557 - Submerged on course 044(T), posit (L. 15-40 S, Long. 119-05 E.), having decided crew needed indoctrination and training in new watch section details. Shifted from straight 3 section watch to 2 sections surface and 4 section submerged watches. Exercised crew at battle and section stations. Maneuvered ship submerged to check performance. Depth 100-120 feet. Periscope observations every 20-30 minutes. Observed air attacks #2 main ballast tank.
1905 - Surfaced (Lat. 15-14.7 S., Long 119-37 E.). Speed 12 knots on 3 & 4 main engines, charging batteries.
2310 - Secured battery charge. Increased speed to 15 knots #1, 3, 4 main engines.

Friday, April 3, 1942.

0532 - Submerged to 80' on course 044(T), speed 3.5 knots, enroute assigned area. Depth 100-120 feet, periscope observations every 30 minutes. Posit Lat. 13-33.1 S., Long. 121-18.5 E.
0558 - Observed sunri sea.

— page 59 —
0736 - Changed course 035(T).
: 1755 - Sunset.
: 1857 - Surfaced on course 035(T), speed 12 knots, on #3 & 4 main engines, charging on #1 & 2 main engines and #1 & 2 auxiliary engines. Posit Lat. 12-54.0 S, Long. 121-46.2 E.

Saturday, April 4, 1942.

0502 - Submerged to 80' on course 035(T), speed 3.5 - 3.2 knots enroute assigned area. Depth 120', periscope observations every 30-45 minutes. Posit doubtful.
0556 - Observed sunrise.
0724 - Sighted Southwest point Roti Island bearing 004(T).
1146 - Changed course 070(T) to patrol parallel to coast of Timor.
1749 - Observed sunset.
1847 - Surfaced on course 070(T) posit Lat. 11-10.3 S., Long. 122-58 E. Speed 5 knots, charging batteries. Time dive 45 seconds.
1910 - Submerged to 170' for training purposes. Time dive 45 seconds.
1914 - Changed course 180(T).
1930 - Surfaced.
2019 - Moonrise. Visibility excellent. Continued battery charge.
2053 - Changed course 110(T) to run up moon enroute Roti Strait - Darwin line.
2149 - Changed course 070(T) to run parallel coast.
2325 - Secured battery charge and continued on course 070(T) at speed 9 knots enroute patrol area.

Sunday, April 5, 1942.

0120 - Decoded ComSouOeSpt 01601 of April 1 (ComSubSAF serial 9) ordering STARTLST to proceed to Guadalcanal after sea. Via East Timor, Manila, Apo East Pass, and South China Sea, staying well clear of coast after passing Cobra Inlet to Cape St. Paul and to patrol vicinity of San Fernando, on route to Takaofu and landing, and continued in formation of a rellitica to suspected mine fields. Instructions received prior departure on patrol advocate use of only two main engines proceeding to patrol station north of barrier.
0126 - Changed course 060(T) to reach position for passing thru passage between Timor and Leti Island.
0502 - Submerged on course 060(T) posit Lat. 10-49.1 S., Long 124-21.2 E. Sea glassy calm, visibility 3 miles due surface haze. Depth 120', periscope observations 30-45 minutes. Position doubtful.
0537 - Changed course 052(T) enroute passage east of Timor.
0546 - Sunrise.
1700 - Rain squall set in, visibility decreased to 1000 yards. From doubtful cuts, an apparent Southwest set of 1.5 knots.
1738 - Sunset.
1835 - Surfaced course 052(T), speed 12 knots on #3 & 4, charging batteries on other engines. Posit Lat. 10-24.0 S., Long. 124-41.3 E. (Doubtful).

— page 60 —
2109 - Moonrise.

Monday, April 6, 1942.

0454 - Submerged course 060(T) in posit Lat. 9-27.2 S., Long. 126-21.2 E.
Speed 3 knots, depth 120', periscope observation half-hourly enroute
assigned patrol area, via east of Timor.

0538 - Observed sunrise.

2235 - Changed course 050(T) to close south coast of Timor.

2330 - Changed course 060(T) to pass thru channel between east point of
Timor and island of Leti.

Tuesday, April 7, 1942.

0011 - Changed course 009(T).

0225 - Sighted Leti Island bearing 358(T) distant 15 miles.

0250 - Changed course 270(T) to alter posit so as to have straight run
thru channel.

0332 - Changed course 331(T).

0444 - Submerged on course 331(T), speed 3, depth 120', half-hourly observations. Posit Lat. 08-11.2 S., Long. 127-28 E.

0536 - Observed sunrise.

1735 - Observed sunset.

1801 - Changed course 300(T) to increase distance from Romang Island prior
surfacing.

1842 - Surfaced on course 300(T), speed 12.2 knots on #3 & 4, charging on
remaining engines. Posit Lat. 07-40 S., Long. 127-12.5 E.

1850 - Changed course 315(T).

1929 - Changed course 333(T), setting course to make landfall on Gunung
Api Island.

2304 - Observed moonrise.

2331 - Changed course 015(T) upon sighting Gunung Api Island bearing
358(T) distant 12 miles.

Wednesday, April 8, 1942.

0045 - Changed course 010(T) with Gunung Api Island bearing 285(T) distant
3 miles, setting course to make landfall on Ambleau Island.

0455 - Submerged on course 010(T) speed 3.3 knots, depth 100', half-hourly
observations. Posit Lat. 05-50.5 S., Long. 126-53.8 E.

0550 - Sunrise.

1735 - Sunset.

1843 - Surfaced on course 010(T), speed 10 knots on #1 main engine.

— page 61 —
0000 - Course 343(T) speed 12 knots to pass about 20 miles east of Lifumatola, Sula Island, enroute Moulocca Passage.
: 0441 - Submerged on course 343(T) speed 3.2 knots, depth 120', half-hourly observations. Posit Lat. 00-52.8 S., Long. 126-33 E.
: 1836 - Surfaced on course 343(T), speed 12 knots on #3 & 4 main engines, charging on remaining engines enroute Banka Passage. Posit Lat. 00-06 S., Long. 126-19.8 E.
: 2137 - Changed course 320(T) and made after tubes ready upon lookout's report of submarine diving close aboard on starboard quarter. Not sighted by any but one lookout. May have been USS TARPON. Posit Lat. 00-21.8 N., Long. 126-23 E.
: 2140 - Changed course 343(T).
: 2144 - Secured charging storage battery.
: 2225 - Sighted Tifare Island bearing 337(T) distant 22 miles.
: 2243 - Changed course 000(T) to check on Tifore Island which very closely resembled a destroyer.
: 2334 - Sighted Majoe Island 010(T) distant about 17 miles. Increased speed to 14.5 knots, so as to pass thru Banka Passage submerged.

Saturday, April 11, 1942.

0014 - Changed course 316(T) to head for Banka Passage.

— page 62 —
0419 - Sighted Biard Island, bearing 324(T), distant 23 miles.
0434 - Submerged on course 324(T) speed 3.2 knots, depth 120', observations about every half hour. Posit Lat. 01-45.2 N., Long. 125-37.8 E.
0531 - Changed course 305(T) to pass thru center of Benka Passage.
0537 - Observed sunrise.
1305 - Sighted sailboat (native fishing craft) bearing 334(T) on course 170(T), distant 4000 yards.
1746 - Sunset.
1852 - Surfaced on course 305(T) speed 12.2 knots. Posit Lat. 02-10.7 N., Long. 125-05.8 E.
1854 - Sighted large fire on Talisei Island.
1914 - Changed course 300(T).
1945 - Changed course 297(T) speed 12 knots on #3 & 4 main engines, charging on remaining engines, enroute Sibutu Passage.
2245 - Secured charging main storage batteries.

Sunday, April 12, 1942.

0449 - Submerged on course 297(T), speed 3.2 knots, depth 120', periscope observations every half hour. Posit Lat. 03-16.3 N., Long. 123-17.1 E.
0543 - Sunrise.
0606 - Sighted what appeared to be smoke bearing 025(T), distance about 15 miles.
0607 - Changed course 025(T) to investigate apparent smoke.
0730 - Changed course 296(T), apparent smoke turned out to be a cloud on horizon.
1015 - In position on track between Davao and Makassar Strait, swung ship for magnetic compass check.
1203 - Changed course 296(T).
1756 - Sunset.
1856 - Surfaced on course 296(T), speed 10.5 knots on #1 main engine, charging batteries on #2 main engine and auxiliaries. Visibility fair. Decided to cruise at speed 10.5 knots so as to arrive south entrance about 2300 on 13th and also to cross Davao-Tarakan track while submerged. Plot indicates that USS SNAPPER may be in Sibutu Passage commencing 0000/14th but since USS SEADRAGON will be passing Sibutu at same time the next evening, it is felt necessary to take the chance of sighting SNAPPER in passage.

Monday, April 13, 1942.

0400 - Moonrise.
0458 - Submerged on course 296(T), speed 3.2 knots, depth 130', observations every 30-45 minutes. Posit Lat. 04-19.5 N., Long. 120-50.5 E. Sea flat calm.
0550 - Sunrise.
0632 - Changed course 284(T) to head for southern entrance Sibutu Passage. Star fix position 20 miles Northwest of dead reckoning.
1806 - Sunset.

— page 64 —
1806 - Sunset.
1905 - Surfaced on course 033(T). Lat. 6-48.3 N., Long., 119-45.5 E.
Speed 10.2 knots, charging batteries enroute Apo East Pass.
2240 - Secured charging main storage batteries.
2305 - Decided OmsuSeaAF 33 of 15 April 1 ordering SPEARFISH to start south
30 April 1 if no further orders are received.

Thursday, April 16, 1942.

0500 - Submerged on course 033(T), speed 3.2 knots, enroute Apo East Pass.
Posit Lat. 8-27.6 N., Long. 120-51.2 E. Exercised crew at general
drills.
0556 - Sunrise. Increased depth to 120', half-hourly observations.
1809 - Sunset.
1914 - Surfaced. Posit Lat. 8-57.2 N., Long. 121-12.6 E. Speed 10.2 knots
on #1 main engine, charging main storage batteries.
1932 - Changed course 040(T), not having sighted Cagayan Island, and having
decided to make landfall on Naso Point, Panay.

Friday, April 17, 1942.

0000 - Changed course 000(T).
0340 - Sighted Naso Point bearing 066(T), distant about 16 miles.
0445 - Submerged on course 000(T), speed 3.2 knots, depth 120', periscope
observations half-hourly. Posit Lat. 10-21.5 N., Long. 121-42.1 E.
Decided check position by land bearing prior changing course to pass
thru Cuyo East Pass.
0554 - Sunrise.
1300 - Changed course 330(T) and increased speed to 5 knots.
1447 - Changed course 308(T), having sighted smoke bearing 308(T), distant
about 10 miles. (Own posit Lat. 10-52.8 N., Long. 121-40.2 E.)
1510 - Distinguished masts of ship distant about 8 miles on southerly
course.
1530 - Went to battle stations.
1555 - Changed course 240(T)
1608 - Completed submerged attack on enemy armed transport or supply ship,
having fired 4 torpedoes, two of which hit. (Own posit 10-53.3 N.,
Long. 121-35.1 E.)
1620 - Changed course 270(T)
1635 - Changed course 220(T) to clear area.
1803 - Sunset - completed reload.
1945 - Surfaced posit Lat. 10-43.8 N., Long. 121-27 E. course 220(T), speed
11.5 knots, charging batteries. Decided clear area for night, and to
delay transiting Apo East Pass until following evening due possibility
vigilant destroyer patrol, that area after reported submarine attack
on supply ship.
1946 - Changed course 250(T).
2030 - Changed course 200(T).

— page 65 —
2330 - Secured battery charge and decreased speed to 5 knots, patrolling easterly and westerly courses in vicinity Cuyo West Pass.

Saturday, April 18, 1942.

0445 - Submerged on course 090(T), Lat. 10-13.8 N., Long. 120-51.4 E., speed 3.0 knots.
0510 - Changed course 060(T) - not sure of position.
0545 - Sunrise - depth 120' with half-hourly observations.
1310 - Changed course 020(T) to make landfall on Cuyo Islands.
1600 - Sighted Cuyo Islands on northwesterly bearing, distant about 20 miles.
1805 - Sunset.
1924 - Surfaced on course 020(T) speed 12 knots, charging batteries.
    Posit Lat. 10-47.3 N., Long. 121-19.7 E.
2027 - Established position by bearings on Cuyo Islands and changed course 000(T) enroute Apo East Pass.
2035 - Changed course 270(T) upon O.O.D.'s report of bright green flare rising from sea bearing 090(T) distant 1 mile. No small boat nor ship could be seen. Posit Lat. 11-00 N., Long. 121-23.2 E.
2058 - Changed course 000(T).
2104 - Increased speed to 15 knots, having decided to submerge in Apo East Pass in a position just south of Discovery Bank.
2201 - Secured charging batteries.
2208 - Changed course 333(T) to pass to eastward of Coutts Bank and to stay in deep water while entering pass.
2400 - Should have sighted Ambulong Island - visibility poor (less than 3 miles). Ran on D.R.

Sunday, April 19, 1942.

0315 - Changed course 000(T) to stay well clear of Apo Reef. Visibility about 2000 yards and decreasing.
0326 - Decreased speed to 5 knots.
0329 - Submerged in posit Lat. 12-23.2 N., Long. 120-42 E. on course 000(T) to await sufficient visibility to check position. Speed 3 knots, depth 68'.
0543 - Sunrise - checked posit by land bearings.
0843 - Changed course 000(T) to pass east of Discovery Bank.
0921 - Changed course 335(T).
0945 - Changed course 330(T).
1427 - Changed course 295(T).
1811 - Sunset.
1927 - Surfaced in posit Lat. 12-52 N., Long. 120-25.7 E. on course 295(T), speed 12 knots, charging batteries, enroute Lingayan Gulf.
2300 - Secured charging storage battery.
2314 - Decoded ComSubSAF 43 of 19 April relative to arrival of an enemy force in Subic Bay on 21 April and arrival in Lingayan Gulf of 3 ADs from Camranh on same day.
2330 - Changed course 355(T).

— page 66 —
0441 - Changed course 300(T).
0449 - Submerged on course 300(T), speed 3 knots, periscope depth. Posit Lat. 14-15 N., Long. 119-45 E.
0541 - Sunrise.
0542 - Changed course 355(T).
1818 - Sunset.
1935 - Changed course 300(T) and surfaced heading into moon. Posit Lat. 14-46 N., Long. 119-40 E. Speed 12 knots, charging batteries.
2000 - Changed course 355(T), having decided to run up coast of Luzon between Subic Bay and Cape Bolinazo outside 100 fathom curve in hopes of intercepting enemy forces supposedly enroute Subic Bay from north.
2006 - Sighted searchlight on hill north of Subic Bay.
2210 - Moonset.

Tuesday, April 21, 1942.

0250 - Slowed to 5 knots and lowered sound heads upon reaching estimated position Lat. 16-15 N., Long. 119-37 E. Having assumed that enemy was reported enroute Lingayan Gulf from Camranh would probably make landfall on Cape Bolinazo, decided to patrol north from this point.
0426 - Submerged on course 355(T). Periscope depth until sunrise then 100' with half-hourly observations. Speed 3 knots. Posit Lat. 16-23 N., Long. 119-39 E.
0435 - Changed course 090(T) to close coast.
0440 - Changed course 180(T) upon sound's report of peculiar knocking sound (similar to tapping on a hollow log) bearing 020(T) and covering an area of about 30 degrees. Periscope visibility poor, sighted nothing.
0511 - Changed course 090(T), peculiar knocking sound stopped (did not fade out) on bearing 010(T). Visibility fair, sighted nothing - sound probably fish noises.
0543 - Sunrise.
0700 - Changed course 000(T) to patrol across Camranh - San Fernando track, a recheck having shown position to be about 4-5 miles southwest of Cape Bolinazo light.
1220 - Changed course 090(T).
1643 - Changed course 300(T) to clear coast prior surfacing.
1818 - Sunset.
1948 - Surfaced - moonlight rather bright. Posit Lat. 16-40 N., Long. 119-35 E. Course 270(T) to run into moon while charging batteries.
2157 - Changed course 030(T) and commenced surface patrol, having decided to work north and then along track from Hainan to San Fernando.
2200 - Completed charging main storage batteries.
2310 - Moonset.

Wednesday, April 22, 1942.

0330 - Changed course 090(T).

— page 67 —
0433 - Submerged on course 090(T) to periscope depth, speed 3 knots. Posit Lat. 16-48 N., Long. 120-03 E.
0542 - Sunrise.
0815 - Changed course 260(T) upon sound's report of peculiar noise resembling high speed propellers bearing 250(T). Posit Lat. 16-48 N., Long. 120-12 E. Sighted nothing.
0951 - Changed course 000(T). Decided screw noises were own ship's noises, cause unknown. Noise ceased upon changes speed. Noted large air leak aft. Decided patrol north and south in present position about 10-12 miles northwest of Cape Boiliano, while locating and repairing air leak. Depth 120', periscope observations half-hourly.
1819 - Sunset.
1939 - Changed course 280(T) to head into moonlight and surfaced, speed 5 knots, charging storage batteries. Air leak decreased, but not located - probably from impulse tank or some sea chest blow.
2100 - Changed course 100(T).
2218 - Secured charging main storage batteries.
2347 - Changed course 060(T). Decided to close coast about 10 miles north of San Fernando and work in vicinity track from Takao to San Fernando. During previous day's patrol had hoped to intercept traffic a fair distance from its destination so that if successful, I might then change my area to the northward and thus escape detection.

Thursday, April 23, 1942.

0155 - Decoded Commando 42 with information that aviation stores ship would be departing Inngayar for Ambon soon.
0435 - Submerged on course 000(T) to periscope depth. Speed 3 knots. Posit Lat. 16-51 N., Long. 120-10 E.
0500 - Changed course 090(T).
0542 - Sunrise.
0600 - Conducted submerged patrol north and south along Takao - San Fernando track.
1817 - Sunset. Changed course 270(T) to clear coast prior surfacing.
1945 - Surfaced in position Lat. 16-57 N., Long. 120-08 E., and commenced surface patrol across Takao - San Fernando track.

Friday, April 24, 1942.

0250 - Visibility decreased to 600 yards due haziness. Made two torpedo tubes ready for firing.
0436 - Submerged on course 090(T) and closed coast to obtain fix. Posit Lat. 16-55, Long. 120-11 E. Speed 3 knots, depth 120', observations half-hourly.
0830 - Commenced submerged patrol along Takao - San Fernando track.
1800 - Changed course 270(T) to clear coast prior surfacing.
1940 - Surfaced posit Lat. 16-46 N., Long. 120-06 E. and patrolled east and west in bright moonlight along track from Hainan to San Fernando, speed 5 knots, charging batteries.
2230 - Completed battery charge.
2233 - Stood by to dive upon lookout's report of small craft resembling 46

— page 68 —
U. S. S. SPEARFISH
BRIEF NARRATIVE:
motor torpedo boat about 2000 yards on port quarter. Sighted nothing but decided to increase distance from Gulf entrance, since the Captain cannot think of any effective offensive tactics to use against this type of craft. Their use as submarine attackers is suitable in this area when the sea is usually flat calm and while moonlight visibility prevails. Considered depth setting a torpedo at one foot, inadvisable due possibility of premature explosion. With the possibility of a motor torpedo boat trailing the submarine's wake and coming in for an attack on the submarine's quarter, diving while strictly defensive, is quicker than swinging ship and firing one torpedo in a matter of 3-4 minutes. Single machine gun fire against a small fast-moving target armed with three or four machine guns also appears inadvisable.

231h - Decoded Combat Report 55 with information that ship loaded with aviation material and personnel due in Ingeyegan from Takao at 0800 April 27 and departs Ingeyegan for Koganei at 1600 April 27.

Saturday, April 25, 1942.

0000 - Surface patrol, speed 4.5 knots, course 090(T) and 270(T) in position approximately 15 miles northwest San Fernando light.

0141 - Changed course 220(T) upon sound's report of excessively high noise level bearing 220(T). Stood by to dive upon lookout's report of white colored streak resembling fast-moving small surface craft. Nothing sighted by Captain nor O.O.D. Sound noise spread out and identified as fish noises, perhaps porpoises.

0153 - Changed course 090(T).

0300 - Sighted light bearing in direction of San Fernando distance 12-14 miles - showed red and white flashes at intervals from 0300 to 0317. (See Navigational Aids). It is believed that San Fernando light is burned as beacon for incoming ships.

0435 - Submerged on course 270(T), speed 3 knots, posit Lat. 16-55 N., Long. 120-05 E.

0448 - Changed course 090(T) and decreased depth to 120' to obtain trim. Obtained stop trim for 5 minutes at 100'. Sound reported nothing heard. Temperature sea water at 100' - 80' and at 68' - 83'.

0500 - Decreased depth to 66'. Sighted dark outline of ship bearing 272(T), approximate distance 4500 yards, angle on bow 80-90 port. Periscope visibility fair. Tried unsuccessfully to decrease range. Since target was comparatively small (2000 - 2500 tons) and since closest range reached was 3800 yards, decided to withhold fire and track ship.

0558 - Changed course 135(T).

0635 - Changed course 155(T).

0648 - Ship continued on approximate course 165(T), passed inside the hundred fathom curve just west of Darigayos Point (Lat. 16-50 N., Long. 120-17.8 E.) and stood south on southerly course until out of sight.

0730 - Changed course 090(T) to avoid possible minefields and to close coast to obtain fix - hazy condition existing just after sunrise prevents fix being obtained unless close inshore.

0900 - Changed course 270(T).

1000 - Commenced submerged patrol north and south along Takao - San Fernando track.

— page 69 —
1126 - Sighted enemy merchant ship bearing 185(T) on northerly course in position Lat. 16-56 N., Long. 120-11 E.
: 1220 - Completed submerged attack on merchant ship, having fired two torpedoes (one hit) and changed course 300(T) to clear area. Observed ship to be on fire and sinking.
: 1225 - Went to deep submergence upon hearing series of explosions, at first believed to be aircraft bombs.
: 1306 - Changed course 270(T).
: 1315 - Periscope observation, nothing in sight. Commenced patrol along Takao - San Fernando track.
: 1730 - Changed course 270(T) to clear coast prior surfacing.
: 2008 - Surfaced in posit Lat. 17-10 N., Long. 120-00 E. Realized that in view of the attack completed this date, that anti-submarine measures would be taken to prevent a successful attack upon the aviation store ship due in Lingayan at 0800 April 27 (ComousBAF 55 of 24 April). Decided to run north along coast and intercept enemy off Cape Bojador during daylight hours. Alerted the Navy that enemy would make day-light landings on the coast. Opened fire at 0800 and fired at 0830.

— page 70 —
0130 - Lookout reported green flare bearing 045(T) distant about 1 mile.
: 0237 - Decreased speed to 5 knots on motors, lowered sound heads, and stood by to dive upon sighting searchlight beam bearing 220(T) distant about 2-3 miles. Own position Lat. 17-20 N., Long. 119-59 E. Origin of beam appeared to be close to, but on near side of horizon. Visibility fair, moon just setting. Could not sight ship nor could sound hear propellers. Beam swept horizon a few times and disappeared. At 0245 sighted either the same or another beam bearing about 202(T), distant 6-7 miles.
: 0417 - Submerged on course 197(T) to periscope depth, speed 3 knots. Approximate position Lat. 17-12 N., Long. 119-55 E. Decided to intercept aviation supply ship north of Cape Bolinao.
: 1145 - Sighted what appeared to be smoke bearing 120(T) distant about 12 miles and drawing to the westward.
: 1200 - Apparent smoke disappeared. Continued on course 197(T) enroute position northwest of Cape Bolinao.
: 1437 - Sighted eleven masts fitted with small sails in line or column bearing 237(T) and distant about 4 miles in position Lat. 16-39 N., Long. 119-37 E. Apparent course southwest or west. Could not distinguish hulls. Sound could not pick up propeller sounds. Sound condition on the locality are apparently either very poor or else the torpedo explosion on 25 April which damaged the auxiliary JK may have damaged the remaining sound receiver. Maximum range received even after sound is coached on the bearing has been 2000 yards. This condition necessitates practically constant patrol at periscope depth.
: 1440 - Bearing of masts continued to draw slowly to the right. Changed course 180(T) to leave the sweeps to westward.
: 1445 - Distinguished hulls of sweeps at estimated distance of 3 miles and maintaining a southerly course.
: 1455 - Changed depth to 120° ran silent and changed course 170(T), since I felt that aircraft may have been directing search. From plot of situation and change of bearing of sweeps, there appeared to be plenty of room for the submarine to slip by this formation.
: 1516 - Eased up to periscope depth, nothing having been heard by sound. The sweep formation was dead ahead with opening of the "W" about 10° on the port bow, distant about 2000 yards. The arc subtended by the leading boats of each column was 20°. The subchaser was about 1000 yards broad on my port bow, and apparently directing the proceedings. All sails had been lowered.
: 1517 - Changed depth to 200° and course to 340(T) with hard right rudder, in an endeavor to pass ahead of the leading boat on my starboard bow. Since a plot indicated that the sweep formation had made good a speed of 7-8 knots in order to reach its present position, I figured it only a matter of time before the formation caught up with me. Still felt the formation was directed by aircraft as well as sound. The presence of the motor torpedo boat discouraged the idea of surfacing except as a last resort. Considered possibility of firing torpedoes set for a circular run and shallow depth, but figured it would strike net before

— page 71 —
U. S. S. SPEARFISH
BRIEF NARRATIVE (Continued):
reaching surface. Determined to stay on course 340(T) and to run
silent at 200' until the sweeps struck, then, if necessary, to make a
battle surface, fire gun and torpedoes and attempt escape on surface.
1630 - Changed course 300(T) when periscope observation showed masts of
formation bearing 120(T), distant about 3-4 miles and on northerly
course.
2000 - Changed course 275(T) to clear area.
2147 - Surfaced in bright moonlight and went ahead 9 knots to clear area.
Decided to rove track between Hainan and San Fernando and obtain some
sleep since with one thing and another, it has been impossible to ob-
tain more than 1 hour's uninterrupted sleep since 24 April and may
have been the cause of the apparently poor judgement which almost
directed the SPEARFISH into a submarine net.

Tuesday, April 28, 1942.

0421 - Submerged in position Lat. 16-58 N., Long. 118-05 E. (estimated
daylight area for incoming traffic) on course 099(T) to periscope
depth. Worked back and forth across track until dark then stood in
on course toward San Fernando.
1951 - Surfaced in position Lat. 16-56.3 N., Long. 118-02 E. on course
100(T). Bright moonlight, visibility excellent.
2045 - Decoded CommSubAF 60 of 28 April ordering SPEARFISH to operate near
Corregidor on May 3, to pick up passengers and proceed Fremantle.
2110 - Changed course 320(T) with hard rudder and full speed upon lookout's
and O.O.D.'s reports of wake apparently from periscope bearing 125(T)
distant about 1000 yards. Own posit Lat. 16-55, Long. 118-04 E.
2114 - Slowed to 4 knots and lowered sound heads. Nothing heard by sound.
2116 - Increased speed to 10 knots, when wake again sighted bearing 127(T),
distant about 2000 yards.
2130 - Slowed to 4 knots, changed course 180(T) and commenced listening
watch. Estimated my position to be outside visibility range of sub-
marine periscope, if that was object sighted, and hoping to sight
submarine when surfacing.
2154 - Changed course 080(T). Nothing sighted nor heard.
2203 - Changed course 110(T) and continued along Hainan - San Fernando track.

Wednesday, April 29, 1942.

0000 - Changed course 290(T).
0437 - Submerged on course 290(T) to periscope depth in position Lat.
16-59 N., Long. 118-59 E.
0503 - Changed course 270(T).
1200 - Changed course 090(T).
1929 - Changed course 115(T) and surfaced. Conducted surface patrol on
courses 090(T) and 270(T), in vicinity Lat. 16-45 N., Long. 120-00 E.
at speed 5 knots.

Thursday, April 30, 1942.

0420 - Submerged on course 220(T) in position about 6 miles northwest of

— page 72 —
U. S. S. SPEARFISH
CONFIDENTIAL
BRITISH NARRATIVE (Continued):
Cape Bolinao and conducted submerged patrol on course 000(T) and 180(T). Depth 100', periscope observations every 30 minutes.
1217 - Decreased depth to 68' upon sound's report of "pinging". Sighted tops and stack of one destroyer bearing 160(T), on northerly course, speed approximately 8-10 knots, distant about 8 miles in position Lat. 16-17 N., Long. 119-44 E. Destroyer continued north for about 10 minutes then apparently reversed course and disappeared on southerly course Remained in vicinity of Cape Bolinao but nothing sighted.
1955 - Surfaced on course 270(T) and conducted surface patrol in vicinity of Cape Bolinao, having decided that destroyer sighted might have been checking area for future passage of ships.

Friday, May 1, 1942.

0431 - Submerged on course 090(T) in position Lat. 16-29 N., Long. 119-45 E.
0500 - Changed course 000(T) and commenced submerged patrol of area north of Lingayan Gulf, remaining about 4 miles north of 100 fathom curve.
1944 - Surfaced in position Lat. 16-39 N., Long. 119-50 E. and set course 230(T) enroute Corregidor at speed 10 knots.
2300 - Changed course 170(T).

Saturday, May 2, 1942.

0433 - Submerged on course 175(T) in posit Lat. 15-15 N., Long. 119-50 E.
1948 - Surfaced in posit Lat. 14-45 N., Long. 119-55 E. and proceeded on course 180(T) at speed 6 knots enroute Corregidor, having decided to charge battery while to seaward of any DD patrols and to pass submerged under reported DD patrol line between Subic Bay and Cabra Island.

Sunday, May 3, 1942.

0016 - Changed course 090(T).
0027 - Changed course 141(T) and stopped upon sighting outline of ship bearing 141(T), distant about 3-4 miles in position Lat. 14-18.5 N., Long. 119-58.7 E.
0044 - Determined ship to be DD on northeasterly course at speed 7-8 knots. Moonlight visibility excellent.
0046 - Submerged and changed course 100(T), to escape detection, having decided that attack would seriously jeopardize successful rendezvous off Corregidor.
0100 - 0145 - Various courses and depths at silent speed to clear DD which apparently did not contact SPEARFISH.
0145 - DD disappeared on northerly course, "pinging" faded out.
0230 - Surfaced on course 190(T).
0241 - Changed course 083(T) and continued battery charge, while proceeding at 5 knots.
0445 - Submerged in position Lat. 14-18.5 N., Long. 120-02.6 E. to 130'. Half-hourly observations.
1200 - Sighted 3 destroyers (MUTSUKI or KAMIKAZE class) and masts of 1 minelayer or sweep in following approximate positions: 1 DD (pinging)

— page 73 —
U. S. S. SPEARFISH
BRIEF NARRATIVE (moved):

bearing 301(T) distant 4 miles on southerly course in position Lat. 14-24 N., Long. 120-17 E.; 1 DD (pinging) bearing 070(T), distant 2 miles on northeasterly course in position Lat. 14-22 N., Long. 120-27.5 E.; 1 DD (not pinging) bearing 105(T), distant 3 miles on northerly course in position Lat. 14-20.5 N., Long. 120-20.5 E; masts and stack of a light minelayer or sweeper bearing 140(T), distant about 7 miles on northeasterly course in position Lat. 14-15.7 N., Long. 120-30 E.
Estimated speeds 7-8 knots.

1210 - Changed course 090(T), ran sent at depth 180' to pass between DD bearing 105(T) and minesweeper. Remained deep to pass patrolling ships.

1500 - Patrol ship well astern and apparently patrolling line between Hamilo and Vigia points. Submarine apparently undetected during passage, since pinging continued at 7-8 second intervals and no depth charges dropped. The fact that a DD daylight patrol was established 6-9 miles from Correggidor and the absence of gun fire caused some concern as to whether Correggidor had been captured and the dispatch notification missed during submergence between 0046 and 0230. Since NPO call had been heard after surfacing at 0230, it was assumed that Correggidor was still a U.S. possession.

1830-1940 - Various courses maintained position on bearing 220(T) distance 3-4 miles from Correggidor light. Noted flashes of gun fire from Bataan from 1800 until 1930.

1940 - Surfaced in position 3.5 miles bearing 220(T) from Correggidor light. From 1940 to 2010 lay to in awash condition awaiting arrival passenger boat.

2010 - Commenced battery charge.

2025 - Sighted and exchanged recognition signals with USS PERRY. Guns on Bataan opened fire on Correggidor.

2035 - Received following 27 passengers with baggage, files, mail and miscellaneous gear:

U.S. Navy: Comdr. R.G. Dewall, USN
Comdr. E.L. Sackett, USN
Comdr. H.E. Wilson, (CHC), USN
Lt.Cdr. T.W. Davison, USN
Lt.Cdr. L.C. Parker, USN
Lt.Cdr. D.W. Knoll, USN
Lt. Cdr. R.M. U.S. (Unauthorized passenger)
Ann Bernatitus, Nurse, USN

U.S. Army: Col. Charles Savage, AC, USA
Col. Thomas Doyle, Inf., USA
Col. Constant L. Irwin, GSC, USA
Col. Milton A. Hill, IGD, USA
Col. Royal Jenks, FD, USA
Col. Mott Ramsey, VC, USA

2nd Lieut., A.N.C.: Hortense McKay
Helen Summers
Mary Moultrie
Nancy Gillahan

Lucy Wilson
Ruth M. Streub
Beth Veley
Mollie Peterson

— page 74 —
U. S. S. SPEARFISH
BRIEF NARRATIVE (U.S. Navy):
Civilian: Margaret Janson (Wife of Naval Officer)
(Unauthorized passenger - status unknown - formerly Lt., USNR, demobilized in Manila by verbal orders just prior evacuation of city, escaped to Corregidor and served with Army Transportation Service).

The two unauthorized passengers assisted as part of Corregidor working party in transferring baggage from PERRY to SPEARFISH and apparently stowed away in SPEARFISH until after departure of PERRY. Upon arrival Fremantle they were taken into custody by Base Force for further disposition.

2050 - Passengers and baggage aboard. Observed moonrise. Heavy shelling of Corregidor continued. Decided to lie to charging batteries until moonlight visibility increased.

2152 - Set course 270(T), speed 5 knots to escape illumination caused by explosion of ammunition dump on Corregidor. Determined to run away from moon, to continue battery charge as long as possible, and to submerge if patrolling DDs were sighted.

2223 - Submerged upon sighting outline of DD bearing 300(T), distant about 2 miles on a southerly course. Posit Lat. 14-19.8 N., Long. 120-29.4 E.

2230 - Changed course 250(T) and ran silent, destroyer pinging having ceased, could not sight DD thru periscope altho sound reported loud screw noises bearing 270(T).

2245 - Pinging commenced approximate bearing 250(T) range 3000 yards. Decreased depth to 100'.

2345 - Pinging ceased on bearing 210(T).

Monday, May 4, 1942.

0151 - Sound reported pinging and screw noises bearing 260(T). Sighted nothing thru periscope. Posit Lat. 14-19.5 N., Long. 120-25.6 E. Pinging and screw noises faded out on bearing 330(T).

0531 - Upon sound's report of r'nging, came to periscope depth and sighted 1 DD bearing. 070(T) distant about 1 mile and 1 DD bearing 330(T) distant about 3 miles, both on northerly courses. Posits Lat. 14-20 N., Long. 120-18 E and 14-16 N., Long 120-15 E. Changed course 260(T), went to 180' and ran silent.

0822 - Upon sound's report of pinging came to periscope depth and sighted DD bearing 000(T), distant 4 miles on easterly course.

0830 - Changed course 230(T), went deep and ran silent.

0840 - Changed course 260(T).

1000 - Pinging faded out on bearing 045(T).

1910 - Surfaced in posit Lat. 14-08 N., Long. 119-40 E. C02 1.8%. Pressure in boat 3.5 inches. Used 374 cubic feet oxygen at 1800 lbs./sq. inch (2 cylinders) and 45 lbs. C02 absorbent. Time submerged 20 hours, 47 minutes.

1930 - Changed course 180(T) and went ahead 10 knots.

— page 75 —
0000 - Changed course 100(T).
: 0030 - Changed course 109(T) and increased speed to 12.5 knots.
: 0428 - Submerged in position Lat. 12-57.9 N., Long. 120-25.5 E.
: 0600 - Changed course 090(T) to close west coast of Mindoro for navigation.
: 0835 - Changed course 160(T).
: 1129 - Changed course 140(T).
: 1410 - Changed course 195(T).
: 1932 - Surfaced in position Lat. 12-28.7 N., Long. 120-40.7 E., set course.
: 180(T) at speed 12 knots to pass well clear of Ambulong Island and DD patrol reported in ComSubsAF 70 of May 3, 1942.

Wednesday, May 6, 1942.

0000 - Changed course 080(T), running on D.R. to pass between Chinaman Shoals and Sultan Bank.
: 0043 - Made all torpedo tubes ready upon sighting 2 DDs (unidentified type) in column bearing 074(T) distant about 2-3 miles on northwesterly course in position Lat. 11-34 N., Long. 121-12 E.
: 0046 - Submerged when DDs altered course toward SPEARFISH. Sound reported.
: 0054 - Changed course 140(T) and increased depth to 180' upon sound's report of loud pinging heard round dial.
: 0130 - Pinging faded out on bearing 350(T).
: 0230 - Sound reported "pinging" on bearing 350(T). Sighted nothing thru periscope.
: 0300 - Pinging faded on bearing 080(T). Decided remain submerged due impossibility determining location of DD patrol.
: 0645 - Changed course 280(T) upon sighting masts and topworks of freighter bearing 195(T), distant about 8 miles, on course 290(T), in position Lat. 11-11 N., Long. 121-16 E.
: 0645-0815 - Maneuvered in unsuccessful attempt to close range.
: 0815 - Changed course 090(T).
: 0945 - Changed course 140(T).
: 1152 - Changed course 180(T).
: 1548 - Changed course 190(T).
: 1913 - Surfaced in Lat. 10-55 N., Long. 121-24.5 E., course 180(T), speed 12 knots.
: 2009 - Submerged upon imaginary sighting black object resembling submarine, bows on, bearing 250(T), distant 600 yards. Object sighted probably cloud or Cocoro Island. Sound heard nothing.
: 2030 - Surfaced. Lat. 10-41 N., Long. 121-21 E.

— page 76 —
U. S. S. SPEARFISH
BRIEF NARRATIVE (Continued):

Thursday, May 7, 1942.

0444 - Submerged posit Lat. 09-53 N., Long. 120-55 E., course 212(T).
1920 - Surfaced in Lat. 09-16 N., Long. 120-32 E., speed 11.5 knots course 212(T).
2030 - Changed course 180(T) to pass between Tubbatana Reefs and Arena Island.

Friday, May 8, 1942.

0204 - Changed course 211(T) having decided to pass west of Pearl Bank enroute Sibu.
0446 - Submerged in Lat. 07-36 N., Long. 120-05.3 E.
1841 - Surfaced for star fights in Lat. 06-58.5 N., Long. 119-44 E., course 212(T), speed 12 knots.
2149 - Changed course 180(T), speed 14.5 knots.

Saturday, May 9 1942.

0200 - Passed to westward of Pearl Bank and changed course 190(T), enroute Sibu Passage.
0312 - Obtained fix on Bongao and Mount Sibankat at distance of 25 miles.
0429 - Submerged Lat. 05-14 N., Long. 119-43 E., course 180(T) to transit Sibu Passage submerged. Sighted native fishing craft.
1604 - Sighted small merchant ship using blinker lights, attempted unsuccessfully close range.
1938 - Surfaced Lat. 04-40 N., Long. 119-45 E., course 130(T), speed 12 knots.

Sunday, May 10, 1942.

0117 - Changed course 110(T) while transmitting SPEARFISH 091720 notifying ComTaskFor 51 of results and passenger list.
0140 - Changed course 187(T) enroute Makassar Strait.
0450 - Submerged Lat. 03-10 N., Long. 119-55 E.
1836 - Surfaced Lat. 02-18 N., Long. 119-44 E.
2030 - Changed course 184(T), speed 12 knots.

Monday, May 11, 1942.

0339 - Changed course 220(T) upon making landfall on mountains of Celebes Island.
0441 - Submerged Lat. 00-46 N., Long. 119-37 E.
0600 - Changed course 195(T).
1335 - Changed course 215(T).
1700 - Crossed equator. Initiated 11 male and 13 female "Shellbacks".
1913 - Surfaced Lat. 00-07 S., Long. 119-16 E. Speed 11 knots.
2000 - Changed course 195(T).

— page 77 —
U. S. S. SPEARFISH
Tuesday, May 12, 1942.

0026 - Changed course 195(T).
0456 - Submerged Lat. 01-57 S., Long. 118-45 E.
1847 - Changed course 080(T) to avoid native fishing fleet in Lat. 02-57 S., Long. 118-35 E.
1925 - Surfaced Lat. 02-55 S., Long. 118-33 E., course 195(T), speed 12 knots.
2222 - Changed course 216(T).
2327 - Speed 15.5 knots to be in position for submerged run between Lima Island and Kaloe Kaloeokeang.

Wednesday, May 13, 1942.

0518 - Submerged Lat. 04-38 S., Long. 117-25 E. and changed course 206(T).
1245 - Changed course 270(T) to make landfall on Lima Island.
1502 - Changed course 206(T).
1916 - Surfaced Lat. 05-14 S., Long. 117-08 E., Speed 12.4 knots.

Thursday, May 14, 1942.

0200 - Changed course 190(T).
0511 - Submerged Lat. 07-03 S., Long. 116-25 E.
0900 - Changed course 205(T) enroute Lombok Strait.
1907 - Surfaced Lat. 07-53 S., Long. 116-05 E.
1909 - Changed course 205(T), speed 12.5 knots.
2030 - Made landfall on mountains Bali and Lombok Island.
2325 - Changed course 195(T). Increased speed to 14.5 knots.

Friday, May 15, 1942.

0005 - Cleared Lombok Strait, changed course 190(T), nothing sighted.
0520 - Submerged Lat. 09-44 S., Long. 115-34 E.
1854 - Surfaced Lat. 10-36 S., Long. 115-25 E., speed 14.5 knots.
2130 - Changed course 199(T).

Saturday, May 16, 1942.

0547 - Submerged Lat. 13-21 S., Long. 114-27 E.
1844 - Surfaced Lat. 13-47 S., Long. 114-17 E. Speed 15 knots.

Sunday, May 17, 1942.

0643 - Sunrise. Commenced surface running.
0800 - Posit Lat. 16-48 S., Long. 113-21 E. Changed course 203(T), speed 16 knots, to pass thru Lat. 20-00 S., Long. 112-00 E.
2000 - Posit Lat. 19-36 S., Long. 112-15 E.
2200 - Transmitted SPEARFISH 171400 informing ComTaskFor 51 of expected time arrival. Changed course 175(T) enroute bombing restriction area.

— page 78 —
U. S. S. SPEARFISH
BRIEF NARRATIVE (Continued):

Monday, May 18, 1942.

0800 - Posit Lat. 22-18 S., Long. 112-17 E.
2000 - Posit Lat. 25-28 S., Long. 112-15 E.

Tuesday, May 19, 1942.

0400 - Changed course 172(T). Decreased speed to 12.5 knots due heavy seas.
0736 - Exchanged recognition signals with PBY patrol plane.
0800 - Posit Lat. 27-30 S., Long. 112-53 E.
1254 - Changed course 145(T) to conform to bombing restriction lane.
2000 - Posit Lat. 30-22 S., Long. 113-56 E.

Wednesday, May 20, 1942.

0315 - Sighted Rottnest Island Light bearing 115(T), distant about 28 miles. Increased speed to 16 knots.
0515 - Contacted USS ISABEL and USS SAILFISH and proceeded astern SAILFISH enroute Fremantle harbor via swept channel.
0739 - Moored port side to North Quay, Fremantle harbor.

— page 79 —
29 March - 5 April - Enroute Fremantle to Roti - Darwin line off Timor. Seas south, force 4, shifting to east and decreasing in intensity to force 2 after passing northwest Cape. Sky partly cloudy but visibility excellent night and day. Average temperature 78°. Average barometric pressure 29.79.

: 21 April - 1 May - Lingayan Gulf area. Seas northeast, force 1-2, wind northeast, force 2. Sky generally clear, with few detached clouds. Day visibility excellent. Night visibility fair to good, and excellent in moonlight. Average temperature 80°. Average barometric pressure 29.76.

: 1 May - 3 May - Enroute Lingayan to Corregidor. Seas calm. Wind northeast, force 1-2. Sky partially cloudy. Visibility excellent both night and day. Average temperature 80°. Average barometric pressure 29.75.

: 3 May - 20 May - Enroute Corregidor to Fremantle. Seas calm until northern end of Makassar Strait where a southeast sea of force 2 was found. South of barrier force of sea increased to 4. Wind slight northeast until Makassar Strait, then southeast wind, average force 2-3. Sky clear until Makassar Strait, then cloudy, mostly cu nb. Average temperature 81°. Average barometric pressure 29.66. Visibility excellent during day. Night visibility good, excellent during moonlight.

— page 80 —
4 - 7 April - Area southeast of Roti and Timor Islands, experienced current setting 258(T), drift 0.8 knots.
: 9 April - Between 0600 and 1000 in middle of Manipa Strait, experienced 2 knot southerly set. Submerged depth 65 - 120 feet.
: 11 April - Banka Passage between 0800 and 1830 while submerged - current setting 130(T), drift 1 knot.
: 19 April - Apo East Pass between 0400 and 1400 while submerged experienced 1.2 knot current setting southeast.
: 21 - 24 April - North of Lingayan Gulf, experienced constant northerly or northeasterly set varying from 0.5 to 1.1 knots.
: 25 - 26 April - Lingayan Gulf to Cape Bojeador, experienced current setting 058(T), drift 0.6 knots.

— page 81 —
17 - 18 April - Fire or light burning high on hill close to Naso Point, Panay.
: 18 April - Fires or lights burning on Mindoro Island, about on Santa Teresa Hill, behind Ilin Island, and about the Radio Station, San Jose.
: 19 April - Fires or lights burning on tops of hills on Mindoro Island, at unidentified places.
: 25 April - San Fernando Light showed red and white flashes at varying intervals from 0300 to 0317. Believe this light is used as beacon to guide incoming ships.
: 3 - 4 May - Fortune Island Light burning - normal characteristics.

— page 82 —
10 April - 2137 - Submarine posit Lat. 00-21.8 N., Long. 126-23 E. bearing 140(T) distant 300 yards, course 240(T), apparently having broached. Lookout only person who sighted this submarine - probably imaginary sighting but may have been USS TARPON. Not observed by Captain nor O.O.D. - no attack possible.

11 April - 1305 - Native fishing craft (no positive means of identification), in Banka Passage (Posit Lat. 1-58.8 N., Long. 125-20.7 E.) remain unobserved and passed well clear.

17 April - 1447-1615 - Armed auxiliary or cargo ship, Lat. 10-53 N., Long. 121-35 E., zigzagging on southerly course at estimated speed of 8-10 knots. Sighted smoke at 1447, bearing 308(T) and at 1510 distinguished masts and smoke stack. Zigzag about 20-30 degrees to right and left of base course which appeared to be 160(T). Ship appeared to be enroute Apo East Pass to Ilillolo or Cebu. Description: two masts, estimated height 100', two goal posts, midships deck house with either 4" or 6" gun mounted bow and stern. Estimated length 450-500 feet, estimated tonnage 9000-10000, and appeared to be fully loaded. Similar to NITIYO MARU or NICHIIYO MARU. Attacked with four torpedoes fired from bow tubes.

25 April - 0500 - Small transport or possi ble cargo ship, lat. 16-55 N., long. 120-05 E., course 149(T) changing to 165(T) at 0635, at estimated speed 9-11 knots. (62 RPM questionable turn count). Range 4500 yards. Description: Two stick masts, 1 stack, midship deck house, no guns mounted. Estimated length 300', estimated tonnage 2000-2500. Similar to RAKUTO MARU, except that no booms were discernible. Very much resembled USS ISABEL in outline and thought at first to be patrol or station ship. In view of excessive range and hazy estimate of target course (due visibility) considered chance of hitting with long range shot very small. Disclosure of position would jeopardize chance of successful attack upon more valuable ship due in Lingayan next morning. Decided trail and determine entrance to Lingayan Gulf if possible. It was noted that sound took appreciable time to pick up target even when coached on the bearing - screws (slow speed) had very mushy sound.

1126 - Freighter in position Lat. 16-56 N., Long. 120-11, bearing 185(T), distant about 8-9 miles, on northerly course at estimated speed 8 knots. Description: Similar in outline to NAGATA MARU, but appeared to be of greater length. Estimated tonnage 6000 tons. Estimated masthead height 90', estimated length 450'. Carried two masts with prominent triangular crosstrees, one stack, and mid-ship

— page 83 —
26 April - 1234 -  Combination freighter and tanker in position Lat. 18-47 N., Long. 120-39 E., bearing 038(T), distant about 8 miles on southerly course, at estimated speed 9-10 knots (160 RPM by sound count). Target zigzagging 20 degrees to right of initial course.
Description: 10000-12000 tons, similar in outline to SAN RAMON MARU, except this ship had mast, midship deck house, goal post mast and stack aft and appeared to be a great deal larger. The number "803" was painted along side of midship deck house. Unescorted and no guns observed. Cargo covered with canvas stowed topside space forward. Small Japanese flag on flagstaff aft. Estimated length 450 feet. Estimated masthead height 90°. At 1327 attacked with four torpedoes fired from stern tubes.
1736 - Unidentified type merchant vessel or patrol ship in approximate position Lat. 18-30 N., Long. 120-24 E., bearing 228(T), distant 9 miles, on southerly changing to southwesterly course. Estimated speed 8-10 knots. Closest range 8000 yards. Target drew out of sight on southwesterly course. Estimated length 350', estimated masthead height 90'. Estimated tonnage 3000-4000. Two stick masts, midship deck house and single stack. An object resembling an aircraft of some type appeared to be carried in the forward part of the ship. No attack. Target disappeared at 1826 on a southwesterly course.

27 April - 1437 - 10 power boat sweeps (two columns of five each) apparently dragging a net, and accompanied or directed by a submarine chaser or motor torpedo boat similar to Philippine "Q" boat. Position Lat. 16-39 N., Long. 119-37 E. Power boats appeared to be 60-80 feet in length, resembling tuna fishing boats, each fitted with a light mast and small sail apparently for camouflage purposes. The two columns of 5 boats each secured in tandem were on courses diverging 45-60 degrees, with distance between boats of each column about 50 yards. The motor torpedo boat was stationed on one side of the "Y". Sound could not pick up propeller sounds. From plot, the formation appeared to be capable of a speed of 7-8 knots.

30 April - 1217 - Destroyers - class unidentified due range in position Lat. 16-17 N., Long. 119-44 E., bearing 160(T), distant 7-8 miles on northerly course at speed 8-10 knots, apparently patrolling vicinity Cape Bolinao. Sound reported "pinging". DD continued on northerly course until 1227 then apparently

— page 84 —
3 May - 0027 - 1 Destroyer - tentatively identified as of KAMIKAZE class in position Lat. 14-18.5 N., Long. 119-58.7 E., bearing 141(T), distant 3-4 miles on northeasterly course, apparently patrolling entrance to Manila Bay along Subic - Cabra line, since sound reported "pinging". With excellent moonlight visibility prevailing, a fair chance of successful attack existed. The Commanding Officer did not close the enemy since he considered non-detection of the SPEARFISH necessary to a successful rendezvous off Corregidor.

1200 - 3 Destroyers - MUNSUKI or KAMIKAZE class.
    Lat.    Long.    Bearing    Range    Course    Speed
    14-24 N.  120-17 E.  301(T)   8000    Southerly   7-8
    14-22 N.  120-27.5 E.  070(T)   4000    Northeasterly   7-8
    14-20.5 N.120-20.5 E.  105(T)   6000    Northerly   7-8

1200 - Light minelayer or sweep - type unidentified due range in Lat. 14-15.7 N., Long. 120-30 E., bearing 140(T), distant 7 miles on northeasterly course at speed 7-8 knots.
    Above ships apparently patrolling entrance Manila Bay along line between Hamilo and Vigia points, since pinging could be heard from two of the DDs. Maneuvered to escape detection.

2223 - Outline of DD in position Lat. 14-19.8 N., Long. 120-29.4 E., bearing 300(T), distant 2 miles on southerly course at speed 10 knots. Destroyer part of patrol previously sighted. Submerged since general set-up offered no possibility for attack.

4 May - 0151-1000 - Passed thru destroyer patrol, sighting same destroyers in approximately the same positions. No opportunities for attack. Decided upon evasive tactics since from maneuvers of destroyers and shifts to automatic pinging they evidently suspected presence of submarine in vicinity.

6 May - 0043 - 2 Destroyers (class unidentified) in column, position Lat. 11-34 N., Long. 121-12 E., bearing 074(T), distant 2-3 miles, speed not determined, on northeasterly course. Submerged when angle on bow of leading DD decreased from 30P to 0. Destroyer used 8 second interval pinging and were evidently patrolling south of Mindoro.

0645 - Freighter in position Lat. 11-11 N., Long. 121-16 E., bearing 195(T), distant 7-8 miles, course 290(T), speed 9 knots (not zigzagging), evidently enroute Inapacan Strait. It was noted that ship passed south of Luzon Bank and between Chinaman Shoals and Maracanao Island. Angle on bow at sighting about 958, smallest range obtained about 8000 yards, Description: Similar to MORIOKA MARU, estimated tonnage 4000-5000, estimated length 350', estimated masthead height 80'.

— page 85 —
17 April 1942:
Location: Lat. 10-53 N., Long. 121-35 E. (About 6 miles Northwest of Sombrero Rock).
Type Target: Armed transport or supply ship.
No. Torpedoes Fired: 4

| Torpedo No. | S.W. Time | Firing Interval |
||||
| 1          | 0-00      | 0              |
| 2          | 0-25      | 0-25           |
| 3          | 0-35      | 0-10           |
| 4          | 0-55      | 0-20           |

Firing Range: 2530 yards
Torpedo Run: 2700 yards (TDC) 2500 yards (Time torpedo run)
Point of Aim: Foremast
Track Angle: 100 - 110 Port

| No. Torpedo | Gyro Angle (TDC) | Gyro Angle (Tube) | Depth Set. |
|||||
| 1          | 349             | 347              | 8          |
| 2          | 348             | 347              | 10         |
| 3          | 348             | 347              | 8          |
| 4          | 347             | 348              | 10         |

Estimated Enemy Course: 159(T)
Estimated Enemy Speed: 8 knots.
Own Course: 240(T) for all shots
Own Speed: 4 knots increasing to 4.8 during firing
Own Depth: 65' - 64' - 63' - 64'

Daylight submerged attack from periscope depth on generated bearings with periscope down. Raised periscope 45 seconds after last torpedo fired and observed hits. (after firing first torpedo.

All torpedoes ran hot according to sound.

Spread Data: 2 degrees divergent
#1 Torp. - 2° ahead of formast
#2 Torp. - Formast
#3 Torp. - 2° Astern of Formast
#4 Torp. - 4° Astern of formast.

Spread applied on TDC by offsetting gyro setting from generated gyro angle.

| Torp. No. | Time Fired | Time Explos. | Observation |
|||||
| 1        | 16-05-54   | -            | None       |
| 2        | 16-06-19   | 16-07-59     | Hit under formast |
| 3        | 16-06-29   | 16-08-09     | Hit slight abaft maimmast |
| 4        | 16-06-49   | -            | None       |

Observations 1607 to 1620 showed ship to be listing to port and settling by stern. By 1611 ship had settled and lost about three-quarters of original freeboard and propeller had stopped. Observed two small power boats being hoisted out. Lowered periscope at 1620 went to 100' due to imaginary

— page 86 —
9 May - 1454 - Sailboat similar native fishing prau in Lat. 4-49 N., Long. 119-40, bearing 100(T) on northwesterly course, distant about 2-3 miles.
1604 - Small cargo or passenger ship in position Lat. 4-47.5 N., Long. 119-31.4 E., bearing 274(T), on course 010(T), speed 9-10 knots, distant 4-5 miles. Similar CHOHET MARU, two stick masts, single stack in middle deck house. Estimated tonnage 2000, estimated masthead height 70', length 250', Ship ran very close to Sibutu Island coast and would not have been sighted had not foremast yardarm blinker light flashed intermittently during a period of 2-3 minutes. Sailboat only other ship in sight and no answering signals observed from either sailboat or Sibutu Island. Angle on bow at sighting 70-80 S. Attempted close, but smallest range obtained was 6000 yards. Ship continued on northerly course until out of sight.

— page 87 —
25 April 1942:
Location: Lat. 17-01 N., Long. 120-15 E.
Type of Target: Freighter
No. Torps. Fired: 2
Firing Interval: 16 seconds
Firing Range: 1500 yards
Torpedo Run: 1250 yards.
Point of Aim: #1 - Foremast; #2 - Stack
Track Angle: 90° Port
Gyro Angle: 0 (Stern tube shot)
Depth Setting: #1 - 8'; #2 - 10'
Est. Enemy Course: 000(T)
Est. Enemy Speed: 8 knots
Method of Attack: Daylight submerged watching target during firing
None
Spread: Sound heard both torpedoes running. First torpedo fired appeared to "porpoise" or to make a surface run.
Torpedoes: Time Explosion
Time Fired: 12-18-01
12-18-17
Time Explosion: 12-19-20
Observation Passed astern
Hit slightly abaft stack.

Observations from 1220 - 1224 showed ship down by stern with flame, smoke, and steam pouring from location just abaft stack. Lowered periscope at 1224, while adjusting depth. At 12-24-30 a prolonged series of crackling or rippling explosion on and noise were heard thru the hull. The sound was similar to that of aircraft bombs landing close aboard. Went to deep submergence and cleared area to northwestward, not making another periscope observation until about one hour later at which time nothing in sight. Later check with sound operator and sound officer leads the Commanding Officer to believe that the noises heard were caused by ammunition explosion aboard the enemy ship and by the ship itself breaking up. Sound later reported that loud gurgling water noises were heard at the same time as the explosions. The Commanding Officer regrets not having made a periscope observation sooner to more definitely establish this sinking.

- 2 -

— page 88 —
26 April 1942:
Location: Lat. 18-47 N., Long. 120-39 E.
Type of Target: Combination tanker and cargo ship.
9000-10000 tons heavily loaded.
No. Torps. Fired: 4 (After tubes)
Firing Interval: 16s - 11s - 13s
Firing Range: 1500 yards
Torpedo Run: 153s yards
Point of Aim: Foremast
Track Angle: #1 - 109S; #2 - 111S; #3 - 113S; #4 - 115R
Gyro Angle: #1 - 22R; #2 - 24R; #3 - 26R; #4 - 28R
Depth Setting: #1 - 8'; #2 - 10'; #3 - 8'; #4 - 10'
Est. Enemy Course: 233(T)
Est. Enemy Speed: 10 knots
Own Course: 320(T)
Method of Attack: Submerged from periscope depth - fired with TDC on generated bearing.
Spread: None
Torpedoes: Sound reported all ran hot.

| Torp. No. | Time Fired | Time Explosion | Observation |
|||||
| 1        | 13-27-44   | None          | Missed ahead|
| 2        | 13-28-00   | None          | do          |
| 3        | 13-28-11   | None          | do          |
| 4        | 13-28-25   | None          | do          |

Observation showed torpedoes to have missed ahead. Enemy apparently sighted periscope and turned toward. Commanding Officer did not detect change in angle on bow until 1 too late. Misses attri buted to incorrect data applied to TDC. Went to 100' when enemy turned toward in attempt to ram. Changed course to left and returned to periscope depth in attempt to fire bow tubes. Angle on bow 175 starboard, range 3000 - did not fire.

— page 89 —
U. S. S. SPEARFISH
ENEMY ANTI-SUBMARINE MEASURES:

North of Lingayan Gulf, enemy employed ten power boat
trawlers to tow submarine net. Formation directed by a motor torpedo boat (possibly former Philippine "Q" boat). Boats of formation carried small sails as disguise. Speed of formation approximately 7-8 knots. Sound could not hear propeller noises at ranges 1000 - 2000 yards, even when coached on by periscope bearings. Method of evasion employed was going deep (220 feet), altering course to clear leading trawlers and then running silent. It is believed that aircraft assist trawler formation in locating submarine, altho aircraft not sighted.

— page 90 —
27 March 1942:
1744 - One plane - no description - posit Lat. 35-18.8 S., Long. 117-05 E. - range 8000 yards - elevation 10 degrees - on course 070(T), speed 100 M.P.H. Probably friendly SOC from Albany.

30 March 1942:
0802 - PBY plane - posit Lat. 29-23 S., Long. 113-24 E., bearing 090(T), slant range 12000 yards, position angle 5 degrees, northerly course, speed 90 knots.

1508 - Unidentified single wing patrol plane, posit Lat. 27-41 S., Long. 112-55 E, bearing 235(T), slant range 12000 yards, position angle 10 degrees. When sighted, plane was in a sharp bank, turning and climbing to lose itself in clouds. Not under observation long enough for identification purposes.

— page 92 —
1. Buoys marking entrance to minefields mentioned in ComSowes-PacFor 041601 of 4 April 1942 were not sighted. One merchant ship apparently enroute San Fernando was observed to pass inside hundred fathom curve at a point west of Darigayos Point (Lat. 16-50 N., Long. 120-17.8 E.).

(b) Communications:
1. No difficulties experienced while NPO operated.
2. North of the equator, Bakers on 9250 kcs. faded badly during the period 0000 - 0400.
3. A broadcast station operating on a frequency near 9250 kcs. caused considerable interference each night during the period 2230 - 2300. Broadcasts are in Spanish and station's call sign never heard.
4. Excellent reception obtained on 4370 kcs. during early morning hours.
5. Suggest rebroadcast of NERKS on Baker frequency, provided compulsory decipherment, in order to obtain essential information, is not required.

(c) Material:
1. One torpedo was observed to make a surface run (depth set 10 feet) - cause unknown. Will check with tender during current overhaul.

(d) Equipment:
1. The bridge pelorus fitted with selsyns and connected to TDC installed during last overhaul proved invaluable for navigational purposes.

(e) Engineering:
1. One main engine out of commission for 2 days. Machined steel plug on discharge side of piston cooling gear backed off due to sheared locking key. Plug fell into crankcase causing following damages: cracked wrist pin bushing and crankcase door, scratch on piston rod, broken web on crosshead guide plate, damaged connecting rod bearing, minor dents in engine frame. Repaired by renewing all moving parts.
2. Prior return to base from Lingayan Gulf, all upper cylinder heads on #3 & 4 main engines were cleaned and "Apexior" removed. As a result oil and water temperatures were lowered from 10-15 degrees and the burning of rubber water seal gaskets completely eliminated. Scale and rust cut loose by Dearborn Formula 5 used in treating main engine circulating water adheres to all surfaces painted with "Apexior", forming a coating which restricts water flow and prevents heat transfer. Submitted that "Debecote" or similar substance be used instead of "Apexior" to prevent excessive corrosion of cylinder heads and insides of water jackets.

— page 93 —
1. In the vicinity of Cape Bojeador where a definite temperature difference existed (4-5 degrees between depth 68 feet and 150 feet) sound conditions were far superior to the area north of Lingayan Gulf where practically no temperature difference was noted, and sound conditions unusually poor.

J. C. Ney
J. C. DEFFEY
Lieutenant, U.S. Navy,
Commanding.

— page 94 —
29 March - 5 April
Fremantle to Roti - Darwin line via east half of bombing restriction lane, thence northeast approximately 30 miles off Australian coast to Northwest Cape, then northeast to Roti Island passing east of D'Artagnan Shoal.

: 5 April - 21 April
Enroute Timor to Lingayan Gulf, passing east of Timor and Kisar Islands, then north through Manipa Strait, passing east of Lifumatola Island, to Banka Passage. Thence west through Celebes Sea to Sibutu Pass, and then north, passing west of Pearl Bank. Transited Sulu Sea on course northeast, going east of the Cogayan Islands, thence north through Cuyo East Pass. Then northwest, traversing Apo East Pass going west of Cabra Island and then north along the west coast of Luzon to the entrance to Lingayan Gulf.

: 21 April - 1 May
Patrolled Lingayan Gulf Area.

: 1 May - 3 May
Enroute Lingayan area to rendezvous off Corregidor Island, going south until due west of Corregidor, thence east to a point three miles bearing 220(T) from Corregidor Light.

: 3 May - 20 May
Enroute Corregidor to Fremantle, passing north and west of Cabra Island, then south through Apo East Pass to Cuyo East Pass. After transitting Cuyo East Pass, southwest through Sulu Sea, passing westward of the Cagayan Islands, to the Sulu Archipelago. Passed west of Pearl Bank and through Sibutu Passage, then southwest through Celebes Sea to Makassar Strait. Followed west coast of Celebes south through Makassar to Cape Mandara. Turned southwest to pass between Sibaru and Kolu Kalkuukan Islands, west of Sibbold's Bank and east of Sekala Island to the entrance to Lombok Strait. Transited Lombok Strait, then turned southeast to head for west section of bombing restriction lane, which was followed to rendezvous off Rottnest Island.

— page 96 —
10 01301
SS190/A16
Serial
August 17, 1942.
DECLASSIFIED ART. 045, OPNAVINST 4510
BY
DATE

DECLASSIFIED ART. 045, OPNAVINST 4510
BY
DATE

The Commanding Officer.
The Commander Submarines, SOUTHWEST PACIFIC.
To:
The attached report, submitted in accordance with
reference (a), consists of the following parts:

1. Narrative (pages 1 to 20, incl.)
2. Weather (pages 1 to 2 incl.)
3. Tidal Information (pages 1 to 2, incl.)
4. Navigational Aids (page 1)
5. Ships sighted (pages 1 to 4, incl.)
6. Aircraft Sighted (page 1)
7. Particulars of Attack (pages 1 to 5, incl.)
8. Enemy A/S Measures (page 1)
9. Major Defects Experienced (page 1)
10. Remarks, including Logistic
    Data (pages 1 to 2, incl.)
11. Route (page 1)

FILMED
4/3184

— page 97 —
10 01301
: 1. NARRATIVE:
: FIRST DAY - June 26, 1942 - Z.D. -8.
: 1700 - Underway from inner harbor, enroute assist and area in accord-
: 1942.
: 1959 - Changed course to 535°(T), speed 15 knots, Decided to raise
: 15 knots while weather remained favorable.
: 2000 - Position: Latitude 51-53 S; Longitude 115-30 E.
: Nothing sighted this date.

: SECOND DAY - June 27, 1942 - Z.D.-8.
: 0000 - Surface patrol on course 325°(T), speed 15 knots, following a
: line 6 miles to eastward of parallel course. Assumed cunbar-
: 0055 - Sighted conning tower fairwater of submarine bearing 235°(T),
: distant 4 miles on opposite parallel course. Assumed cunbar-
: in to be USS SAURY, scheduled to pass this date. Commenced
: radar watch.
: 1021 - Changed course to 352°(T) to follow bombing restriction lane.
: 1200 - Position: Latitude 28-35.0 S; Longitude 115-00 E.
: 1315 - Intercepted following radio transmission on 6560 kcs: "COST TO
: 5 1/2 Z/2Q SIZ KI". Could not decipher.
: 1715 - Numerous whale spouts in vicinity. Commenced weaving 20
: degrees right and left of base course 352°(T).
: 1800 - Resumed base course 352°(T)

: THIRD DAY - June 28, 1942 - Z.D.-8.
: 0000 - Surface patrol enroute Fremantle, M.A., to Lombok Strait via
: bombing restriction lane, course 352°(T), speed 15 knots.
: 0702 - Changed course to 016°(T), to pass thru Latitude 20-00 S;
: Longitude 114-00 E.
: 1200 - Position: Latitude 23-24.0 S; Longitude 115-55.2 E.
: 1340 - Submerged to obtain trim and to conduct general drills.
: 1514 - Surfaced and proceeded on course 016°(T), speed 12.5 knots on
: No. 5 and 4 rain engines. Exercised crew in firing machine
: guns and small arms.

— page 98 —
1605 - Sighted upper works and masts of two-stack destroyer bearing 090°(T), distant 12 miles on southerly course. Delivered to USS CHILD'S enroute from Izmouth Gulf. Own position: Latitude 22-55.5 S; Longitude 115-04.1 E.

FOURTH DAY - June 29, 1942 - Z.D.-8.
0000 - Surface patrol enroute Lombok Strait, on course 015°(T), speed 12 knots.
1626 - Submerged to exercise crew at general drills.
1737 - Surfaced and fired 3 rounds from 3" gun, course 008°(T), speed 12 knots.
2021 - Increased speed to 15 knots, calm weather prevailing and desiring to be in position for daylight landfall prior transiting Lombok Strait.

Nothing sighted this date.

FIFTH DAY - June 30, 1942 - Z.D.-9.
0000 - Surface patrol enroute Lombok Strait, course 005°(T), speed 15 knots. Perfect weather and excellent moonlight visibility.
0736 - Stood by to dive upon lookouts! report of plane, bearings 345°(T), distant 8-10 miles. Sighting not verified, and since radar gave no indication of contact, continued course and speed.
1200 - Position: Latitude 15-32.8 S; Longitude 114-25.0 E.

SIXTH DAY - July 1, 1942 - Z.D.-10.
0000 - Surface patrol enroute Lombok Strait, course 015°(T), speed 15 knots. Perfect weather and excellent moonlight visibility.
0416 - Stop and rubbed in all main engine exhaust valves.
0534 - Submerged patrol. Position about 40 miles south of Lombok Strait. Temperature water surface 86°F, at 100 feet 85°F.
1000 - Made landfall on Bali and Lombok Islands. In view of contrary currents, decided conduct submerged patrol near south entrance Lombok and to transit the strait at night on surface.

— page 99 —
1. NARRATIVE:
( July 1, 1942 (Cont'd.) ).

1200 - Position: Latitude 9-06.5 S; Longitude 115-45.0 E.

1914 - Surface. Course 014°(T), speed 15 knots to transit narrow part of entrance during dark of noon.

2300 - Cleared Lombok Strait, having hit the notional but numerous hill fires on island of Nusa Besar. Visibility: during transit fair with full moon obscured by clouds. Average southerly set of 1.5 knots experienced. Tiderips at both entrances.

SEVENTH DAY - July 2, 1942 - Z.D.-8.

0000 - Surface patrol 13.5 knots enroute Makassar Strait. Course 024°(T). Visibility fair with full moon still very overcast.

0042 - Sighted three ships bearing 010°(T), 041°(T), and 044°(T), on southerly courses at estimated ranges of 4 to 5 miles, in position Latitude 7-59.3 S; Longitude 116-01.4 E.

0048 - Distinguished ships as small destroyers or sub-classes, very low in water and all three apparently converging on SHALIT, angles on bows not greater than 10 degrees. Since bearing did not change appreciably, no definite estimate of speed could be made. General precision was about 6 knots.

0053 - Submerged, went to battle stations and made all tubes ready. Sound conditions very poor. Altho visibility good, could sight nothing thru periscope.

0200 - Visibility decreased - intermittent rain squalls.

0210 - Thru lift in rain squall, saw one ship, apparently subchaser or very small destroyer bearing 041°(T), distant about 2500 yards, on southerly course and riding very slow speed (about 3-4 knots).

0220 - Visibility decreased to about 300 yards. Since location of other two subchasers was unaccounted for, decided remain submerged until visibility increased.

0315 - Sighted hazy outline of the same or another subchaser bearing 055°(T), distant about 1500 yards on southerly course, either stopped or making bare steerageway. Subchaser remained in sight for about 2 minutes. Sound could not hear approach, nor was any "pinging" heard.

— page 100 —
1. NAVAL: ( July 2, 1942 (Cont'd.)).

0520 - Rein squall set in. Decided to submerge to 100 feet, since visibility prevailing. Tare was little chance of obtaining sufficiently accurate data to insure even a fair chance of hitting. Ships sighted were obviously anti-sub patrol ships of subchasers class, either lying to or making slow speed and not using echo-ranging. Conclusion reached was that our passage of Lombok Strait had been reported by some shore station and the subchasers notified.

0400 - Visibility still poor with intermittent rain squalls. Nothing sighted or heard.

0530 - Visibility fair - nothing in sight. Continued enroute. Haskaser Strait. Temperature water surface 86°F, at 100 feet 64°F. Slightly overcast, occasional whitecaps and slight swell.

1200 - Position: Latitude 7-37.7 S; Longitude 110-10.1 E.

1830 - Changed course to 030°(T). Did not sight Seals Island.

1901 - Surfaced. Speed 11.7 knots enroute. Celobeo Sea via Haskaser Strait.

EIGHTY DAY - July 5, 1942 - Z.D.-G.

0000 - Surface patrol course 030°(T), speed 11.7 knots enroute. Celebes Sea via Haskaser Strait. Visibility fair with full moon and overcast.

0251 - Changed course to 030°(T) to avoid sailboat bearing 530°(J), distant about 1 mile.

0300 - Resumed course 030°(T), and proceeded on soundings and D.T.

0542 - Submerged patrol. Position about 20 miles southeast of Line Islands.

0605 - Sighted sailboat bearing 030°(T), distant about 4 miles on northeasterly course.

1000 - Sailboat disappeared on bearing 030°(T).

1200 - Position: Latitude 05-13.3 S; Longitude 117-13.2 E.

1800 - Changed course to 050°(J) not having sighted Line Islands.

1900 - Surfaced. Speed 11.7 knots enroute. Cape Hillion.

— page 101 —
1. NARRATIVE:
NINTH DAY - July 4, 1942 - Z.D. -5.
0000 - Surface patrol enroute Celebes Sea via Hellespont Strait, speed 11.7 knots.
0205 - Changed course to avoid fishing boat or sailing craft.
0523 - Submerged patrol. Experience heavy southerly set.
1200 - Position: Latitude 05-25.0 S; Longitude 114-45.0 E.
0000 - Surface patrol enroute Celebes Sea, speed 11.0 knots.
0045 - 0358 - On three separate occasions during this period, sighted single fishing or sailing craft, each of which closely resembled a submarine. Positive identification was possible only when fishing or sailing craft presented a large angle on the bow. Recognition signals were not initiated.
0520 - Submerged patrol. Changed course at various times to avoid sailing craft, none of which appeared suspicious.
1200 - Position: Latitude 01-07.4 N; Longitude 115-35.2 E.
1400 - Foot visibility with intermittent rain squalls.
1600 - Sighted hazy outline of personnel type ship hull down bearing 095°(T), distant about 7 miles on a southerly course. Angle on bow at sighting about 150° starboard and estimated 25-16 knots. Endeavored unsuccessfully to close range. Sighted smoke ahead of ship, apparently from destroyer escort.
1815 - Ship disappeared due to range and rain. Visibility poor.
1640 - Surfaced. Speed 11.7 knots on route Sibutu Passage. Due to range and speed of ship sighted, and visibility prevailing, decided it would be impossible to contact this ship by reversing course and running south on surface.
1900 - Visibility decreased to 300 yards. Decreased speed to 5 knots and lowered sound heads. Slowed because of danger of collision with sailing craft present in this vicinity.

— page 102 —
1. NARRATIVE:
( July 5, 1942 (Cont'd.)).

2052 - Visibility about 1500 yards with intermittent rain squalls. Increased speed to 12 knots, to make good distance lost, and to run submerged patrol in vicinity of Cape Hangklimalat.

ELEVENTH DAY - July 6, 1942 - Z.D. -8.

0000 - Surface patrol enroute Sibutu Passage, course 010°(T), speed 11.7 knots. Sighted native sailing prau bearing 010°(T), distant about 5000 yards on southerly course.

0830 - Sighted what appeared to be smoke, ran toward a nearby smoke unit. Patrol moved smoke identified as peculiar cloud formation.

1100 - Passed native sailing prau at distance of 1500 yards. No natives, nothing suspicious.

1200 - Position: Latitude 01-15.6 N; Longitude 116-25.0 E.

1859 - Surfaced. Course 010°(T), speed 11.7 knots increasing to 14.5 knots so as to make daylight landfall on Sibutu Island.

TENTH DAY - July 7, 1942 - Z.D. -8.

0000 - Surface patrol enroute Lascars Strait to Sibutu Passage, course 000°(T), speed 14.2 knots.

0520 - 1853 - Submerged patrol.

1200 - Position: Latitude 04-06 N; Longitude 116-25.0 E.

2150 - Commenced transiting. Sibutu Passage, speed 11.5 - 14.2 knots. Visibility poor, sky overcast.

Nothing sighted this date.

THIRTEENTH DAY - July 8, 1942 - Z.D. -8.

0000 - Surface patrol transiting Sibutu Passage, course 350°(T), speed 14.2 knots.

0004 - Changed course to 530°(T), shifted to 10 knots, lowered sound heads and made torpedo tubes ready upon arriving out of ship bearing 550°(T), range about 2500-5000 yards.

— page 103 —
0006 - Identified chip as small destroyer or patrol ship of submarine class type on course 150°(T), in lo. 5-10 degrees port, and either lying to or moving at very slow speed. Sound could not detect propeller noise nor hear "pining".

: 0010 - Since range was decreasing and cost-up such that the range increased, little possibility of hitting, submerged to avoid detection. Temperature water surface 67°F, temperature at 100 feet 65°F. Due to currents and impossibility of determining watertightness of patrol ship, decided to complete transit of submarine submerged.

: 0530 - Obtained periscope observation, visibility poor due intermittent rain squalls. Continued submerged submerged. Passage to Pearl Bank.

: 1200 - Position: Latitude 03-29.5N; Longitude 115-35E. Decided to patrol submerged within visibility range of Bonggo Peak, and then to obtain fire prior pass at west of Pearl Bank on surface.

: 1449 - Sound reported "pining" bearing 105°(T) on 19 knots, 7 seconds interval. Visibility poor, about 4000 yards due to rain storms. Sighted nothing.

: 1455 - Sighted small patrol ship, similar destroyer or torpedo class but having but one mast, a higher single stack, and about 175-200 feet in length, bearing 190°(T) on course 010°(T), speed 10-12 knots, at range of 5000 yards.

: 1500 - Ship disappeared in rain storm, range about 3000 yards.

: 1750 - Sighted same patrol ship (not "pining") bearing 210°(T), distant 12000 yards on course 040°(T), speed about 10 knots. The patrol ship closed to within a range of 4000-5000 yards when reversed course to 100°(T) and closed. All hand periscope deck apparently watching for airsickness. Sound reported a turn count of 280 rpm, but patrol ship's speed did not appear in excess of 12 knots. This patrol ship at an early list to or maintenance base storageway in middle of northern entrance to Sibutu passage at night, and patrols north and south along longitude 115-35E, between latitude 05-00 to 05-50N, during daylight.

: 1920 - Surfaced and proceeded west of Pearl Bank around Carran Sulu. During submerged transit this date, 15 rain engine exhaust valve leaked to such an extent as to require overhaul pumping. All exhaust valves have been "rubbed in" till since July 1, 1942.

— page 104 —
1. NARRATIVE:
( July 8, 1942 (Cont'd.)).

NOTE: The enemy patrol ship sighted was probably hunting the USS SCUTIN which, according to an intercepted dispatch, had sunk a tanker in this vicinity on July 7, 1942.

FOURTH-NIGHT DAY - July 9, 1942 - Z.D. -8.

0000 - Surface patrol enroute Pearl Bank to Balabac Straits, speed 10.5 knots.

0508 - 1925 - Submerged patrol enroute Balabac Strait via Cagayan Sulu and Bancoran Islands. Temperature gradient zero.

1200 - Position: Latitude 07-55.7 N; Longitude 116-58 E.

NOTING sighted this date.

FIFTH-NIGHT DAY - July 10, 1942 - Z.D. -8.

0000 - Surface patrol enroute Bancoran Islands to Balabac Strait.

0428 - 1936 - Submerged patrol transitting Iacubata Channel and Balabac Strait. Made turns for 4.5 knots and averaged 2.5 knots, experiencing northeasterly set in Iacubata Channel and northeasterly in Balabac Strait.

0603 - Sighted native lugger, sails furled, running on artillery power, bearing 137°(T), distant about 7 miles in latitude 07-55.5 N, longitude 117-20 E, at speed 6-7 knots on westerly course. Lugger passed through Channel and continued on southwesterly course passing through Balabac Strait until it disappeared from view about 1050. Closest range 4 miles and no detections distantly observed.

1200 - Position: Latitude 07-47.5 N, longitude 117-05.5 E.

SIXTH-NIGHT DAY - July 11, 1942 - Z.D. -6.

0000 - Surface patrol enroute Balabac Strait to Vanguard Bank. In view of orders which do not permit operation north of latitude 08-30 N until after July 16, 1942, decided to operate in vicinity of Singapore traffic routes which pass close to Vanguard Bank and Leda Reef.

— page 105 —
1. NARRATIVE:
( July 11, 1942 (Cont'd.)).

0549 - 1909 - Submerged patrol.
1200 - Position: Latitude 07-03 N; Longitude 115-00 E.
Nothing sighted this date.

SEVENTH DAY - July 12, 1942 - 2.D. -C.

0000 - Surface patrol enroute Belize Strait to Vanguard Bank.

0005 - 1919 - Submerged patrol.

1200 - Position: Latitude 06-40.2 N; Longitude 112-39.5 E, Readjusted #5 main engine exhaust valve power operating gear in effort to stop leakage, which is still excessive, and necessitates pumping of bilge about every hour and a half.
At 1032 sound reported screw noises bearing 255°(T), and a doubtful turn count of 112 rpm. Sighted nothing thru periscope. Since propeller noises were similar to those of submarine and plot of sound bearings showed course to be about 090°(T), wondered if this might possibly be the SARG. Flot showed submarine to pass at distance of 2 miles and then to alter course to the south, propeller noises fading out at 1115 on bearing 175°(T). Own position latitude 06-40 N, longitude 112-34 E.
Nothing sighted this date.

EIGHTH DAY - July 13, 1942 - 2.D. -C.

0000 - Surface patrol enroute Belize Strait to Vanguard Bank.

0552 - Submerged.

0731 - Surfaced to rub in #1 an. #5 main engine exhaust valves. Leakage required half-hourly pumping of bilges. #5 main engine exhaust valve still unsatisfactory due to excessive leakage and failure of power operation.

0740 - 1952 - Submerged patrol in vicinity traffic lanes from Singapore. Upon surfacing lay to charging storage batteries and cleaning #5 main engine exhaust valve. Binding exists between valve stem and guide, possibly due to carbon on valve stem.

1200 - Position: Latitude 06-50.0 N; Longitude 110-09 E.

— page 106 —
1. NARRATIVE:
( July 15, 1942 (Cont'd.) ).

2224 - Set course 045°(T), speed 5 knots, along Singapore traffic lane which passes close to Vanguard Bank and Ladd Reef.

Nothing sighted this date.

NINETEENTH DAY - July 14, 1942 - Z.D. -8.

Surface patrol South China Sea.

0045 - 0130 - Lay to while adjusting #5 main engine exhaust valve.

0555 - 1956 - Submerged patrol across Singapore traffic lane.

1200 - Position: Latitude 06-57.5 N; Longitude 109-52.1 E.

Nothing sighted this date.

TENTH DAY - July 15, 1942 - Z.D. -8.

Surface patrol South China Sea.

0606 - 1958 - Submerged patrol on course 035°(T) along main traffic route from Singapore.

1200 - Position: Latitude 07-20.8 N; Longitude 108-11 E.

Nothing sighted this date.

ELEVENTH DAY - July 16, 1942 - Z.D. -8.

Surface patrol along Singapore traffic lanes enroute Cceir De Mer.

0600 - 1957 - Submerged patrol. Entered assigned area north of latitude 06-50 N.

1200 - Position: Latitude 06-54.7 N; Longitude 109-09.5 E.

Nothing sighted this date.

TWENTY-SECOND DAY - July 17, 1942 - Z.D. -8.

Surface patrol enroute a position about 10 miles northeast of Pulo Cecir De Mer.

— page 107 —
1942 (Cont'd.)
0550 - 1946 - Submerged patrol on westerly course to cross northbound traffic lines from Cesar De Mar. Experienced 1.4 knot current setting 026°(T).

1200 - Position: Latitude 10-44.0 N; Longitude 109-54 E.
Nothing sighted this date.

TWENTY-THIRD DAY - July 18, 1942 - Z.D. -8.
Surface patrol between Cape Fadern and Pulo Cesar De Mar.

0525 - 1948 - Submerged patrol between Cape Fadern and Pulo Cesar De Mar.

1200 - Position: Latitude 11-10 N; Longitude 109-27.7 E. Experienced northeasterly set of 2.2 - 2.6 knots.
Nothing sighted this date.

TWENTY-FOURTH DAY - July 19, 1942 - Z.D. -6.
Surface patrol between Cape Fadern and Pulo Cesar De Mar.
Because of current, it is necessary to run southwest during surface patrol and drift north with the current while submerged.

0532 - 1948 - Submerged patrol off Cape Fadern.

1200 - Position: Latitude 11-00 N; Longitude 109-19.4 E. Still experienced northeasterly set of 2.0 - 2.5 knots.
Nothing sighted this date.

TWENTY-FIFTH DAY - July 20, 1942 - Z.D. -6.
Surface patrol across traffic lanes from longitudes 109-30 E to 111-30 E.

0537 - 1930 - Submerged patrol across normal traffic lane.

1200 - Position: Latitude 11-47.0 N; Longitude 111-05.5 E.
Nothing sighted this date.

— page 108 —
1. NARRATIVE:
TENTY-SEVENTH DAY - July, 21, 1942 - Z.D. -8.
Surface patrol South China Sea.
0538 - 1934 - Submerged patrol vicinity normal traffic route from Singapore.
1200 - Position: Latitude 11-47.0 N; Longitude 111-15.5 E.
Nothing sighted this date.
TWENTY-SEVENTH DAY - July 22, 1942 - Z.D. -8.
Surface patrol South China Sea.
0530 - 1938 - Submerged patrol vicinity normal traffic route.
1200 - Position: Latitude 11-27.0 N; Longitude 110-57.6 E.
Nothing sighted this date.
TWENTY-EIGHTH DAY - July 23, 1942 - Z.D. -8.
Surface patrol across traffic lines from longitude 111-50 E to Pan-Rang Point.
0534 - 1946 - Submerged patrol vicinity normal traffic route.
1200 - Position: Latitude 11-34.6 N; Longitude 109-27.9 E.
Nothing sighted this date.
TWENTY-NINTH DAY - July 24, 1942 - Z.D. -8.
Surface patrol of coast between Cape Faderal and Cernah Bay.
0530 - 1947 - Submerged patrol of coast between Pan-Rang Point and Cernah Bay.
1200 - Position: Latitude 11-34.0 N; Longitude 109-37 E.
Nothing sighted this date. Current about 2.5 knots setting 045°(G).

— page 109 —
1. NAVAL: 1. TARGET DATE: July 25, 1942 - Z.D. -6.
   - Surface patrol off coast between Camranh Bay and Fulo Cocir De Ilo.
   - 0525 - 1951 - Submerged patrol vicinity Fan-Rang Point.
   - 1200 - Position: Latitude 11-31.1 N; Longitude 108-29 E.
   - Nothing sighted this date.

: 1. FIRST DAY - July 26, 1942 - Z.D. -6.
   - Surface patrol across trade route east of Fan-Rang Point.
   - 0531 - Submerged patrol across trade routes east of Fan-Rang Point.
   - 1200 - Position: Latitude 11-53 N; Longitude 108-24 E.
   - 1612 - Sighted masts of freighter, in latitude 11-40 N, longitude 109-42 E, on southwesterly course, speed 10 knots, apparently enroute Fan-Rang Point. Opening range about 1000, angles on bow 40 port. Closed range at full and standard speeds for 1 1/4 hours and at 1500 fired three torpedoes from 1700 yards. No hits. Fired fourth torpedo 4 minutes later from range of 1200 yards which apparently exploded prematurely about 15-16 seconds after leaving tube. No hits. Irradiatoly following explosion, freighter commenced rapid fire from 400-sec gun, and headed for Camranh Bay at about 15-14 knots.
   - 2045 - Surfaecd end patrolled area to the northeast.

: 1. SECOND DAY - July 27, 1942 - Z.D. -8.
   - Surface patrol South China Sea.
   - 0530 - 1940 - Submerged patrol.
   - 1200 - Position: Latitude 11-45.0 N; Longitude 110-40.2 E.
   - 2013 - Sighted ship bearing 015E(TJ), distant 2000 yards, speed 12-14 knots, on southerly course in position latitude 11-46 N; longitude 111-05 E. Ran full speed on surface to get in position ahead for attack. At 2202 submerged and at 2255 attacked with four torpedoes. Observed on hit between main mast and stern and a second hit slightly forward of bridge. Target cleared toward submarine so went to 100 feet to avoid collision. At about 2255 and 2241 heard two very loud explosions from direction of torpedoes ship, somewhat on order.

— page 110 —
1. NARRATIVE:
( July 27, 1942 (Cont'd.)).

or depth charges but very much louder and more prolonged. 2510, observed ship to be well down by stern and heeled to port, stopped and apparently not under control. Surfaced a midnight and proceeded toward torpedoed ship, while charging storage batteries. Ship was lying to in same location, broadside to sea, listing to port and sinking slowly by the stern. Area for 1 or 2 miles around was covered with fuel oil in which one officer and two lookouts distinguished men trying to swim. Sighted two or three red Very's lights, probably from lifeboats, altho lifeboats were not seen. Distance to nearest land was 100 miles, and in view of the heavy seas then existing, the list of the ship and loss of freeboard, it appeared certain that she would sink. Moonlight very bright so decided to move south along traffic lane before arrival of expected enemy aircraft.

THIRTY-FOURTH DAY - July 28, 1942 - Z.D. -C.

Surface patrol South China Sea.

0520 - 1945 - Submerged patrol across traffic lane.

1200 - Position: Latitude 11-03 N; Longitude 111-21 E.

Nothing sighted this date.

FIFTY-FOURTH DAY - July 29, 1943 - Z.D. -C.

Surface patrol south along Singapore traffic lane, having decided to work in vicinity of Julia Shoal for one day before leaving area on July 30, as per orders.

0550 - 1945 - Submerged patrol across traffic lane. Heavy seas, rains and squalls.

1200 - Position: Latitude 10-33 N; Longitude 110-23 E.

2300 - Decoded Consubs, SoulesFao, serial 15, ordering SPARTISH to delay departure from area until August 1, 1942, and to leave east of longitude 110 E.

Nothing sighted this date.

— page 111 —
1942 - Z.D. - 0.
THIRTY-FIFTH DAY - July 30, 1942 - Z.D. - 0.
Surface patrol South China Sea, working south to leave area between Prince of Wales and Nifleman Banks.

0605 - 1915 - Submerged patrol South China Sea.
1200 - Position: Latitude 09-20 S; Longitude 110-45 E.
Nothing sighted this date.

THIRTY-SEVENTH DAY - August 1, 1942 - Z.D. - 0.
Surface patrol South China Sea.
0400 - Cleared area north of latitude 00-30 N.
0600 - 1855 - Submerged patrol passing west and south of Nifleman Bank.
1200 - Position: Latitude 07-55 N; Longitude 111-05 E.
1900 - 1910 - Exercised 5" gun crew, firing one round.
215 - Transmitted SPARISH dispatch 011511 informing ComSubs, SouWesFac, of results and giving expected time of transiting Balabac Strait.
Nothing sighted this date.

— page 112 —
1. NARRATIVE:
THIRTY-EIGHT DAY - August 2, 1942 - Z.D. -C.
Surface patrol enroute Balabac Strait via route south of Dangerous Grounds.

1200 - 1900 - Submerged patrol.

1200 - Position: Latitude 07-18 N; Longitude 114-47 E.
Nothing sighted this date.

THIRTY-NINTH DAY - August 3, 1942 - Z.D. -C.
Surface patrol enroute Balabac Strait.

0447 - 1903 - Submerged patrol transmitting Balabac Strait and Nasubata Channel.

1200 - Position: Latitude 08-00 N; Longitude 117-14 E.

2356 - when within a distance of five miles of Bancoran Island, noted a blinking light, apparently signalling, from the high point of the island. Could not decipher. Changed course to northeast until well clear of island, then south enroute Sibutu Passage via Cagayan Sulu Island.

FORTIFIEDAY - August 4, 1942 - Z.D. -C.
Surface patrol enroute Sibutu Passage.

0515 - 1903 - Submerged patrol.

1200 - Position: Latitude 07-02 N; Longitude 116-57 E.
Nothing sighted this date.

FORTY-FIRST DAY - August 5, 1942 - Z.D. -C.
Surface patrol enroute Sibutu Passage, passing west of Pearl Bank.

0436 - 1847 - Submerged patrol transmitting Sibutu Passage.

1200 - Position: Latitude 04-25 N; Longitude 118-47 E.
Nothing sighted this date.

— page 113 —
1. NARRATIVE:
FORTY-SECOND DAY - August 3, 1942 - Z.D. -8.
Surface patrol submarine Sibutu Passage to Makassar Strait.
0533 - 1844 - Submerged patrol enroute Makassar Strait.
1200 - Position: Latitude 01-44 N; Longitude 119-48 E.
Nothing sighted this date.

FORTY-THIRD DAY - August 7, 1942 - Z.D. -6.
Surface patrol Makassar Strait.
0504 - 1845 - Submerged patrol Makassar Strait.
1200 - Position: Latitude 00-18 S; Longitude 119-27 E.
The hazy atmospheric condition peculiar to northern Makassar Strait existed at night, rendering horizon practically indistinguishable.
Nothing sighted this date.

FORTY-FOURTH DAY - August 8, 1942 - Z.D. -6.
Surface patrol Makassar Strait.
0146 - Sighted submarine on northerly course distant about 2 miles in position latitude 02-06.5 S, longitude 116-42 E.
Assumed to be USS SORBOTSI scheduled to pass August 7, 1942.
0514 - 1650 - Submerged patrol 6-10 miles off-shore between Cages William and Landar.
1200 - Position: Latitude 03-12 S, Longitude 113-37 E.
0700 - 1800 - Sighted 12 native fishing or sailing craft at various times. Fishing craft (sails furled) sighted about 5-4 miles east of Union Bank while all sailing craft were on easterly or northeasterly courses.
2205 - Maneuvered to avoid small sailboat sighted close aboard. Very black night.

— page 114 —
1. NARRATIVE:
FORTY-FIFTH DAY - August 9, 1942 - Z.D. -8.
Surface patrol Cape Mancer to Lima Islands.
0526 - 1852 - Submerged patrol enroute Lima Islands to Lombok Strait.
1200 - Position: Latitude 05-26.2 S, Longitude 117-05.2 S.
Sighted 4 native sailing craft in vicinity of Lima Island at various times during submerged patrol. During submerged patrol sighted lights from 5-6 fishing boats in vicinity of Sibalds Bank.

FORTY-SIXTH DAY - August 10, 1942 - Z.D. -8.
Surface patrol enroute Lima Islands to Lombok Strait.
0528 - 1905 - Submerged patrol.
1200 - Position: Latitude 07-21.1 S, Longitude 115-21.5 Z.
Nothing sighted this date.

FORTY-SEVENTH DAY - August 11, 1942 - Z.D. -8.
Surface patrol enroute Lombok Strait to Fremantle, Australia.
0220 - Completed surface passage of Lombok Strait. Due to haze, Lombok Island was not sighted until near the southern exit. Numerous native fires or torches sighted on Bali.
0550 - 1906 - Submerged patrol.
1200 - Position: Latitude 09-55.7 S, Longitude 115-56.8 Z.
Nothing sighted this date.

FORTY-EIGHTH DAY - August 12, 1942 - Z.D. -8.
Surface patrol enroute Lombok Strait to Fremantle, Australia, via latitude 20-00 S, Longitude 112-00 E.

— page 115 —
1. NARRATIVE:
August 12, 1942 (Cont'd.):
0600 - Made running dive on all main engines for training purposes. Starboard main motor reverser switch contacts short-circuit causing battery overload to operate. Since temporary repair of damage necessitated removal power from control stand, decided remain submerged during day and effect repair during night.

1200 - Position: Latitude 13-03.8 S, Longitude 114-41.8 E.

1900 - Surfaced. 2150 completed temporary repair to starboard main motor reverser switch.

Nothing sighted this date.

FORTY-NINTH DAY - August 13, 1942 - Z.D. -8.
Surface patrol enroute Lombok Strait to Fremantle, 14.

1200 - Position: Latitude 17-03.8 S, Longitude 112-41.8 E.

Nothing sighted this date.

FIFTIETH DAY - August 14, 1942 - Z.D. -8.
Surface patrol enroute Lombok Strait to Fremantle, 14.

0050 - Transmitted SPEARFISH dispatch 131630 informing Commander, Submarines Southwest Pacific, of E.T.A.

1200 - Position: Latitude 22-37.0 S, Longitude 112-06.1 E.

Nothing sighted this date.

FIFTY-FIRST DAY - August 15, 1942 - Z.D. -5.
Surface patrol enroute Lombok Strait to Fremantle, 14., via bombing restriction zone.

0600 - Sighted PBY plane bearing 071°(T), range about 10-12 miles on northerly course. Did not dive since range too great for sighting.

1200 - Position: Latitude 27-38.2 S, Longitude 112-25.5 E.

— page 116 —
1. MARINE VESSEL:
FIFTY-SECOND DAY - August 16, 1942 - Z.D. -8.
Surface patrol enroute Lombok Strait to Fremantle, via bombing restriction zone.

1200 - Position: Latitude 50-49.8 S, Longitude 114-09.4 E.
Submerged patrol conducted in order to arrive rendezvous at scheduled time, and to eliminate unnecessarily slow surface speeds. Ahead of schedule since not forced to dive for planes.

2332 - SIGNED FLOW OF ROTTENEST ISLAND LIGHT BEARING 145°(T), distant 40 miles.

FIFTY-THIRD DAY - August 17, 1942 - Z.D. -8.
Surface patrol enroute Lombok Strait to Fremantle, via bombing restriction zone.

0403 - SIGNED ROTTENEST ISLAND LIGHT BEARING 145°(T), distant 15 miles.

0430 - CONTACTED USS ISABEL and followed into harbor.

0756 - MOORED starboard side to port side of USS THRESHER at Fremantle, ....

Patrol completed.

- 20 -

— page 117 —
2. WEATHER:
June 26 - July 1
- Enroute Fremantle, W.A., to Lombok Strait.
- Slight seas from north, wind north force 2.
- Sky generally clear with few detached clouds.
- Visibility excellent. Average barometer 28.0C. Average temperature 72F.

July 1 - 11
- Enroute Lombok Strait to Balabac Strait.
- Slight sea with very moderate swells from northwest.
- Slight to southwest north of Pearl Bank. Wind force 2 from northeast, shifting to northwest in north end of Makassar Strait and to westsouthwest when north of Pearl Bank.
- Sky mainly cloudy. Visibility poor in northern Makassar Straits, but good to excellent otherwise.
- Average barometer 29.76. Average temperature 84F.

July 11 - 16
- Enroute Balabac Strait to Patrol Station.
- Slight sea with moderate swells from southwest. Wind 4 to 7 knots from southwest.
- Blue sky with detached clouds. Visibility excellent.
- Average barometer 29.66. Average temperature 85F.

July 16 - August 1
- On patrol station.
- Slight seas with moderate swells from southwest except very heavy swells were encountered 21-25 July. Wind from southwest force 2 except 21-25 July, when wind increased to force 4.
- Sky clear with detached clouds. Visibility excellent except during few intermittent rain squalls. Average barometer 29.63. Average temperature 84F.

— page 118 —
2. WEATHER:
August 1 - 10
Enroute Patrol Stetion to Lombok Strait.
Slight sea with moderate swells from southwest, shifting to southeast when south of Pearl Bank. Wind force 2 from southwest, shifting to southeast to south at Pearl Bank.
Sky generally clear with detached clouds except in north end of Makassar Strait, where sky was generally overcast. Visibility good except in northern end of Makassar Strait, where visibility was poor due to reflection of clouds on flat sea. Average barometer 29:75. Average temperature 84°F.

August 11 - 17
Enroute Lombok Strait to Fremantle, A.A.
Slight sea with moderate swells from southeast, increasing to very heavy swells from the southwest when south of latitude 15° S. Wind force 2 from southeast, veering to southwest when south of latitude 15° S.
Sky mainly cloudy. Visibility excellent except for intermittent rain squalls. Average barometer 29:85, increasing from 29:78 at Lombok Strait to 29:95. Average temperature 84°F at Lombok Strait to 69°F.

— page 119 —
3. TIDAL INFORMATION:

July 1
- Transmitting Lonbok Strait, between 2000 and 2200, counteracted current of 1.4 knots setting 180°(T), sailing Directions and Tide Tables predicted a northerly set.

July 4
- Between Hoek Island and Cape William, during day submergence, current was 1.1 knots setting approximately 180°(T).

July 7
- In Sibutu Passage encountered littles or no current, although predictions from Tide Tables gave a northerly set of 2 to 5 knots.

July 8
- Between Sibutu Passage and Pearl Bank, between 1200 and 1800, current was 1.5 knots setting 320°(T).

July 9
- East of Cagayan Sulu, between 0600 and 1300, counteracted current of 1.4 knots setting 250°(T).

July 10
- Approaching Balabac Strait, near Balabac Channel, on westerly course, between 0300 and 0600, current was 1.5 to 2.2 knots setting 075°(T).

After passing north of Comiran Island, from 0730 to 1500, current changed to 1 knot, setting about 340°(T).

July 10 - 13
- South of Dangerous Ground, enroute Balabac to Vanguard Bank, current was 0.6 knots setting 134°(T).

July 16 - August 1
- On station east of Cape Fadlan, current varied from 1.4 knots setting 025°(T) when close inshore to about 2.0 knots setting 070°(T) when on Hong Kong-Singapore traffic lane 100 miles east of Cape Fadlan.

August 5
- In Sibutu Passage, between 0100 and 0400, encountered slight current of 0.7 knots on 190°(T).

— page 120 —
5. TIDAL INFORMATION:
August 7 - In Makassar Strait, current was 1.1 knots on 8
August 11 - In Lombok Strait, between 0000 and 0815, current of 1 knot on 180°(T).

- 2 -

— page 121 —
4. NAVIGATIONAL AIDS:
July 8 - At 2016, sighted glow of Tanjong Trang Light, bearing 229°(T), distance 20.7 miles. Closest as given in Light List.

— page 122 —
5. SHIPS SIGHTED:
June 27, 1942:-
0053 - Submarine in position latitude 29-52 S, longitude 114-51. E, bearing 233°(T), distant 4 miles on southerly course. Probably US3 S&URY scheduled to pass this date.

0725 - Fossil blue submarine periscope in position latitude 29-53. S, longitude 113-25.5 E, bearing 215°(T), distant 2000-3000 yards on southerly course. Contact not verified - seen by only one lookout.

June 28, 1942:-
1605 - Destroyer (two stack) in position latitude 22-55.5 S, longitude 113-15.1 E, bearing 090°(T), distant 11 miles on southerly course. Identified as USS CHILDS.

July 2, 1942:-
0042 - Sighted 3 sub-classes or very small destroyers bearing 010°(T), 041°(T), and 044°(T), distant 4, 5, and 5 miles respectively in following positions: Lat. 7-54.5 S, Long. 116-06.6 E; Lat. 7-54.1 S, Long. 116-06.0 E; Lat. 7-55.8 S, Long. 116-02.4 E. All ships on southerly courses, about 195°(T) to 200°(T), and making slow speed (0-4 knots) with small angles on their bows and apparently converging on SPEARLISH. Ships, altho on submarine side of horizon, were very low in water. A single mast could be distinguished on each. These ships were not fishing or sailing boats.

0210 - Sighted 1 sub-classer bearing 041°(T), distant about 2500 yards on southerly course, at slow speed. Due visibility conditions sufficiently accurate data for attack could not be obtained.

0315 - Sighted same or similar sub-classer bearing 058°(T), distant about 1500 yards, on southerly heading, apparently lying to or making bare steerageway. Poor visibility and ship in sight only for about two minutes. Distinguished one mast. Ship not echo-ranging and his screws could not be heard by sound.

— page 123 —
5. SHIPS SIGHTED:

July 5, 1942:
1800 - Sighted hazy outline of passenger type ship, hull down, bearing 095°(T), in latitude 00-50.5 S, longitude 116-57.6 on southerly course at speed 15-16 knots. Range at sighting 6-7 miles and angle on bow 150° starboard. Sighted smoke slightly ahead of passenger type ship, probably from destroyer escort. Only details visible were: Full superstructure, one stack, and two stick masts. Endeavored unsuccessfully to close range. Ship disappeared at 1615. Did not surface because of range, speed, and poor visibility.

July 6, 1942:
0004 - Sighted outline of small destroyer or patrol ship of sub-chaser class bearing 330°(T), distant about 3000 yards, on course 150°(T), and either lying to or making very slow speed. Poor visibility made it impossible to distinguish features of ship. Sound could not hear scores nor "pinging". Position: Latitude 05-05 N, Longitude 116-35 E, i.e., about 10 miles northeast of Bongao Island.

1455 - Small destroyer or patrol ship of sub-chaser type, bearing 190°(T), distant 5000 yards on course 010°(T) at speed 10-12 knots in position latitude 05-26.5 N, longitude 116-42 E. Ship was "pinging" at 7 second intervals on 12 kcs. Poor visibility rendered most features of ship indistinguishable. One mast, one high stack, about 500 tons, and 175-200 feet long. Ship in sight for 4-5 minutes when she disappeared in rain storm.

1730 - Small destroyer or patrol ship, probably same one sighted at 1455, bearing 210°(T), distant 12000 yards on course 340°(T), speed 12 knots in position latitude 05-28.5 N, longitude 116-36 E. Ship approached to within 5000 yards then reversed course to 160°(T) and disappeared over horizon. Ship not "pinging" but had all hands on deck acting as lookout. Apparent speed 12 knots for a turn count of 200 R/T. Patrol ship similar in outline to destroyer or torpedo class, except that she appeared to be about 175-200 feet long, 500 tons and had but one tripod mast (estimated height 60 feet), one gun mount forward, and no deck-house aft. The single stack appeared exceptionally high and had one white band. Japanese colors flew at flag-staff on stern. No depth charge racks nor torpedo tubes could be detected.

— page 124 —
5. SHIPS SIGHTED:
July 8, 1942 (Cont'd.): -
NOTE: - Anti-submarine vessel sighted this Cate was probably searching for USS SOULPIN which (from intercepted dispatch information) sunk a tanker in this vicinity on July 7, 1942.

July 10, 1942: -
0632 - In position latitude 07-52.5 N, longitude 117-20 E, sighted native lugger under auxiliary power bearing 137°(T), distant about 7 miles, speed 6-8 knots. The lugger entered Balabac Strait via Comirn Channel and passed out of view at 1030 on a southwesterly course. Closest range about 4 miles and details of construction not distinguished. One mast with gaff, estimated height 50-40 feet, small deck-house, no stack, and not under sail.

July 26, 1942: -
1812 - Freighter in position latitude 11-33 N, longitude 109-34 E, bearing 043°(T), distant 9 miles, apparently weaving on southwesterly course at estimated speed 8-9 knots (60 RPM by sound count). Angle on bow at sighting 40° port. Description: 5500 gross tons, identical to "JAPAN MARU". Length 400 feet, two stick masts (estimated height 90 feet) with cargo booms, bridge island forward of, and well separated from, single tall midship stack. Cargo wells forward and aft, straight bow, counter stern, hull painted greenish-gray with no camouflage striping. Ship appeared to ride down by the stern, smoked excessively, and had deck-gun (about 3 inch) mounted on poop-deck. Unsuccessfully attacked from 1700 yards with 3 torpedoes and from 1200 yards with 1 torpedo.

July 27, 1942: -
2013 - Large passenger-cargo ship in position latitude 11-45 N, longitude 111-05 E, bearing 015°(T), distant about 8000 yards, apparently zig-zagging to right end left of a base course of 208°(T) at estimated speed 12-14 knots. Enemy course when first sighted was approximately 235°(T) with an angle on the bow of about 40° port. Moonlight visibility fairly good, except that this ship appeared rather suddenly out of a misty horizon in the north. Description: About 12000 gross tons, similar to "TASAKUNI MARU" or "HEIAN MARU". Length 510 feet, two stick masts, estimated height 110 feet. Full super-structure covering about two-thirds of the ship's length,

— page 125 —
5. SHIPS SIGHTED:
July 27, 1942 (Cont'd.):-
single low stack, one cargo well forward, and raised or cli
bow. No details concerning color, gun mount, and the li
could be discerned. Shortly before firing, sound obtained
good turn count of 120 RTL for an estimated speed of 12-15
knots. Attacked with four torpedoes. Two hits.

July 30, 1942:-
0135 - Unidentified ship in position latitude 10-08N, longitude
110-06E, bearing 217°(T), distant about 1000-1500 yards, a
apparently on a northerly course. Visibility very poor, with
dense storm clouds, intermittent rain and heavy seas. Ship
appeared out of a black cloud, apparently saw S.S

— page 126 —
6. DESCRIPTION OF AIRCRAFT SIGHTED:

August 15, 1942:
0800 - PBY type bearing 071°(T), range 10-12 miles on northerly course. Own position latitude 26-46.0 S, longitude 112-14.2 E,

- 1 -

— page 127 —
7. PARTICULARS OF ATTACKS:
July 26, 1942:
Location: Latitude 11-58 N, Longitude 109-02 E (25 miles bearing 082° (T) from Fan-Rang Point).

Type Target: Freighter (5300 gross tons), identical to "ATR-1."

FIRST ATTACK:
- No. Torpedoes Fired: 3
- Firing Interval: 12 seconds
- Firing Range: 1700 - 1680 - 1650 (yards)
- Torpedo Run: 1650 - 1650 - 1625 (yards)
- Point of Aim: Stack (middle of target)
- Track Angle: 98 port - 101 port - 97.5 port
- Gyro Angle: 0 - 3 left - 1 left (bow tubes)
- Depth Setting: 8 feet - 10 feet - 8 feet
- Est. Enemy Course: 248° (T)
- Est. Enemy Speed: 9 knots (60 R/T by round)
- Own Course: 350° (T)
- Own Speed: 3 to 4 knots
- Own Depth: 64-66 feet
- Own Depth: - 2 degree disarc, a plied on T.D.C.
- Method of Attack: during firing (make T.D.C.)
- Spread: - 2 degree disarc, a plied on T.D.C.
- by offsetting on T.D.C.

— page 128 —
215(T)
- 6 knots
: 330(T)
- 4 knots
: 64 feet
- Daylight submerged watching target during firing (military method on T.D.C.)

TORP. NO. | Z.T. FIRST | TIDE EXPLOSION | OBSERVATION
4 | 19-34-00 | 19-34-15 | Periscope lowered irretly upon firing.

At 1612 (Z.D.-8) while submerged in latitude 11-34 T, longitude 109-36 E, own course 045(T), speed 2.3 knots, ci. tide single on horizontal and after 5 minutes run toward enemy, distinguish upper waves of a ship bearing 043(T), distant about 9 miles on counter-torpedo course at speed of 9-10 knots. Angle on bow was about 40 degrees port, so took up normal approach course at full speed to close to target range prior sunset (1900). The enemy ship was identified as a type identical to the "WARNA" but, and masthead, but and length were established. The target, either wearing or rigged about 20-40 degrees to right and left of a course of 120(T), was clearly silhouetted against setting sun, while the surface of water had plenty of whitecaps and the only necessity for slow running or surfacing was due to periscope vibration while radar personnel were impossible at speeds above 4.5 knots. The T.D.C. set-up obtained, checked perfectly and for five minutes proceeded firing, constant periscope bearings of the target were transmitted to it, and checked with the generated bearings, while sound obtained a count of 80 min. which appeared reasonable for this type of ship at speed of 6 knots. Because of the range, 1700 yards, and the belief that it was about time for a change in enemy course, a 6-torpedo slo was fired with #1 (ink. XVI warhead) to hit and #5 (ink. XV warheads) spread 200 feet forward and aft of the L.O.T. while light method was used and first torpedo fired at 19-29-00 when gyro angle was zero. The divergent spread was applied on the T.D.C. by offsetting the angle solver bearing dial from the transmitted periscope bearings, periscope trained on L.O.T. continuously during firing, and the target observed for five minutes after firing third torpedo. Although about 20 minutes after sunset, target was very distinct. Torpedo waves could not be seen, but sound reported each torpedo running hot on the proper bearing. Target appeared unaware of torpedoes and three minutes later executed an anticipated left zig to course of 215(T).

— page 129 —
7. PARTICULARS OF ATTACKS:

July 26, 1942 (Cont'd.): -

Obtained new set-up, reducing enemy speed until periscope and generator bearings checked and fired fourth torpedo (Hk. XVI warhead) at 1954 with range of 1200 yards, 111 degree port track and 46 loft gyro angle. Lowered periscope immediately after firing since submarine's depth was decreasing due to lack of speed. Fifteen seconds after firing, while periscope was still being lowered, heard a tremendous explosion and the submarine rocked slightly. About 2-4 seconds after the explosion, sound reported hearing torpedo screws, on approximately the correct track for the torpedo just fired. About 10 seconds after the explosion, while raising the periscope, shells bursting on impact with the water, could be heard thru the hull. During periscope observation made about 15-20 seconds after the explosion, the target was swinging to the right, emitting quantities of black smoke from her stack, and blazing away with a poor-deck gun (estimated 3-inch) at the rate of one shot every 2-3 seconds, although it is extremely unlikely that our periscope was visible. Searched carefully but unsuccessfully for either aircraft or any indication of water surface commotion which might indicate the position of the explosion, but the numerous white caps precluded a thorough examination. Target settled down on course 510° (direction of Carranay Bay) and apparently increased speed to 14-15 knots, still spraying shells in our general direction. A few of the splashes which could be seen landed 100-200 yards from the periscope.

The commandant's officer can neither account for the misses made on the first attack nor for the apparent premature explosion of the torpedo fired on the second attack. Since the arming distance for the Hk. VI explorer is supposedly 450 yards, a minimum time of 16 seconds should elapse between firing and arriving of the torpedo. Times recorded in this report were taken by three stopwatches located at two different stations and are considered accurate. It was interesting to learn that the detonation of 600 pounds of T.N.T. some 550 yards from the submarine at periscope depth caused nothing more noticeable than a slight jar. Not even an electric light bulb was cracked.

— page 130 —
7. PARTICULARS OF ATTACKS:
July 27, 1942:
Location: Latitude 11-28 N, Longitude 110-52 E.
Type Target: Passenger-Cargo (12000 gross tons) similar "W.S.S. MARIU" or "BEIAN MARIU".

No. Torpedoes Fired: 4
Firing Interval: 13 sec. - 12 sec. - 15 sec.
Firing Range: 1100 - 970 - 900 - 800 (1700 by TDC)
Torpedo Run: 900 - 800 - 720 - 700
Points of Aim: Bow - Ship's length ahead - Mainmast - 1/3 ship's length astern.
Track Angles: 60 port (92 by TDC)
Gyro Angles: 0 - 3 left - 2 left - 2 left (by tubes).
Depth Setting: 8 - 10 - 8 - 10
Enemy Course: 186° (220° (T) by TDC).
Enemy Speed: 13 knots (9 by TDC) (120 R/T by sound).
Own Course: 308° (T).
Own Speed: 4 to 4.5 knots.
Own Depth: 62 - 60 feet.
Method of Attack: Night submerged watching target during firing (White light method on TDC).
Spread: Applied by shifting point of aim with poriscope. First torpedo aimed at bow; second aimed at estimated ship's length ahead of bow; third aimed at mainmast and fourth at estimated 1/2 ship's length aft of stern.

TORP. NO. | T. TIRED | TIME EXPLOSION | OBSERVATION
1 | 22-35-24 | 22-36-09 | Hit just aft of mainmast.
2 | 22-35-37 | 22-36-17 | Hit just forward of bridge.
3 | 22-35-49 | None | None
4 | 22-36-04 | None | None

Sound reported all torpedoes ran hot.

At 2013 (Z.D. -8) sighted large ship in position latitude 11-46 N, longitude 111-05 E, distant about 4 miles and on southwest-early course, at estimated speed of 14 knots. Since angle on bow at sighting was about 40 port, secured charge, placed all main engines on propulsion and went ahead full speed in effort to get ahead.

— page 132 —
8. ENTRY ANTI-SUBMARINE LEASURES:

July 2, 1942:
0042 - After transit of Lorilok Strait on surface and when in a position about 15 miles north of the Strait, own course 024°T, speed 12 knots, sighted 5 small destroyers or sub-classes on a line extending from 010°(T) to 044°(T), at estimated range of 4 to 5 miles. Sub-chasers, shortly after sighting, appear to converge on SPEARFISH, with angles on their bows of 100° or less. They appeared to be either lying-to or raking-bare steerageway, and were not "pining." Own sound could not hear their propellers. Temperature surface 56°F, and at 100 feet 84°F. It is believed that our transit of Lorilok Strait had been observed by a shore station and the sub-chasers surmise to lie-to across our course line. Own position at sighting latitude 07-59.3 S, longitude 116-01.4 E.

July 8, 1942:
0004 - Encountered anti-submarine patrol ship either lying-to or making bare steerageway in northern entrance of Sibutu Passage. Sound could not distinguish propeller sounds nor "pining".

1455 - 1730 - Anti-submarine patrol ship on northerly and southerly courses, speed 10-12 knots, along latitude 116-39 E, and between latitudes 05-00 N and 05-50 N. Patrol ship used echo ranging apparatus for search during poor visibility (19 kc.), 7 second interval, 5600 yard range scale, temperature water surface 86°F, temperature at 100 feet 86°F. During good visibility, patrol ship did not "ping", but had crew forward, aft, and along the sides, apparently searching for periscopes. Sound obtained a turn count of 280 RH for an apparent speed of 12 knots.

— page 133 —
9. JAPAN DEFECTS:
August 12, 1942:-
Short circuit occurred in No. 1 main motor reverser switch, causing overload on starboard motors and main battery to open, and momentary loss of propulsion power at time of dive. Reverser switch contacts were badly burned, but were temporarily repaired by dressing down contacts. About one-third contact area is available in the eastern position and one-half in the western position. Short circuit probably caused by some foreign material lodging between contacts, or possibly by a broken strand in reverser switch flexible conductor.

Thruout Patrol:-
Considerable trouble was experienced with main engine exhaust valve leakage, necessitating in one instance, surfacing for purpose of "rubbing in" leaky exhaust valve. No. 3 main engine exhaust valve leaked continuously throughout patrol, and despite numerous attempts at cleaning and adjusting, could not be operated in power after the third week of patrol. Exhaust valve leakage was cut down to some extent by "rubbing in" exhaust valves whenever opportunity permitted, and by securing engines and "slapping" exhaust valves prior routine dives.

— page 134 —
10. REMARKS:
1. Communications were satisfactory, all serials have been received. "BELIS" schedule was received strength 5 on surface when south of Sibutu Passage. No opportunity was afforded for submerged reception.
2. Sound conditions were poor to fair in South China Sea area.
3. One torpedo fitted with Mk. ZVI warhead apparently exploded prematurely, 15 seconds after firing.
4. On July 14, 1942, a short-circuit occurred in the radar transducer putting that equipment out of commission for the remainder of the patrol. Ship's force was not successful in attempted repair. On July 20, an unusually loud, vibratory noise developed inside the vertical antenna, possibly due to parting of radar antenna. Noise was eliminated by bracketing vertical antenna to periscope shears, thus placing vertical antenna out of commission.
5. The following engineering deficiencies occurred:
   - July 5, 1942: Upon inspecting counter-balance nuts on all main engine crossheads, found sheared pins on No. 1 and 4 units of No. 1 main engine and No. 6 unit of No. 4 main engine.
   - July 14, 1942: As a result of inspection, renewed piston and all rings of No. 2 unit on No. 4 main engine and renewed five rings in upper head, No. 1 unit, No. 1 main engine. Repaired pin hole leak in starboard main motor circulating water pump discharge line.
   - July 19, 1942: As a result of inspection, renewed conn-rod bearings and main bearings, No. 7 units, No. 1 and No. 4 main engines.
   - August 2, 1942: As a result of inspection, pulled and tested lower head, No. 1 unit, No. 1 main engine, cleaned piston, renewed stuffer and all piston rings.
   - August 5, 1942: Repaired burned piston rod, No. 8 unit, No. 2 main engine.
   - August 13, 1942: Piston cooling oil discharge nozzle, No. 9 unit, No. 2 main engine broke off, damaging nozzle and division cover.

— page 136 —
11. PATROL ROUTE:

June 26 - July 1 - Enroute Fremantle, 1A., to Lombok Strait.

July 1 - 8 - Enroute Lombok Strait to Sibutu Passage, passing east of Lima Islands through Lakassar Strait.

July 8 - 11 - Enroute Sibutu Passage to Balabac Strait, passing of Bancoran Island, east of Cagayan Sulu, and southwest of Dangerous Ground.

July 11 - 14 - Enroute patrol station, following Long Kong-Singapore traffic lane.

July 14 - 16 - On patrol station between latitudes 8-00 N and 12-00 N.

August 1 - 3 - Enroute patrol station to Balabac Strait, passing Dangerous Ground.

August 3 - 5 - Enroute Balabac Strait to Sibutu Passage, via Bancoran and Cagayan Sulu Islands, passing west of Pearl Bank.

August 6 - 11 - Enroute Sibutu Passage to Lombok Strait through Makassar Strait, via Lima Islands.

August 11 - 17 - Enroute Lombok Strait to Fremantle, 1A.

— page 137 —
10 01301
Serial S-7
SUBMARINE TRO
U.S.S. SARGON (S-5188), Flagship,
September 2, 1942.

FIRST ENDORSEMENT:
From: Commander Submarine Squadron T/O.
To: Commander in Chief, United States Fleet.
Via: (1) Commander Task Group 51.1.
(2) Commander Task Force 51.

Subject: U.S.S. STARFISH War Diary of Fourth War Patrol - Period June 26 to August 17, 1942.

1. This was the Fourth War Patrol of the SF.ARISH and lasted for a period of fifty-three days. The assigned patrol area was in the South China Sea. Passage to and from station was made through Makassar Strait passing north of Borneo. All except twelve days were spent in waters where enemy ships might be encountered. The weather was favorable except for the period of twenty one to twenty five July.

2. Two attacks were made. The first attack on a freighter, estimated about 5,300 tons was unsuccessful. The second resulted in the destruction of a large passenger liner or transport estimated to be about 12,000 tons.

3. Regarding the unsuccessful attack on 26 July the commanding officer's report of a premature explosion of the fourth torpedo is inconclusive and does not give with report from sound operator that torpedo was heard running after the explosion. Flotting available data in the report indicates that initial range on sighting was overestimated and that target was making a maximum of 6 knots resulting in first three torpedoes passing ahead. Although not indicated in the report it has been ascertained that new data had not been ground into the T.D.C. at time of firing fourth shot and that this shot could have been expected to miss whether or not it was a premature.

4. This instance substantiates an idea that the Squadron Commander has had since early in the war that many enemy ships, both merchant and men-of-war, frequently run at speeds below the minimum expected for their type, with the idea of having torpedoes miss ahead. This may have been a coincidence connected with oil shortage and fuel economy. It seems more likely the Japs discovered this little trick from their own peacetime submarine torpedo practices.

— page 140 —
1. NARRATIVE:
FIRST DAY - September 3, 1942.
U.S.S. S. MARINE (completed last patrol on August 17, 1942. During the period August 17 to September 7, a routine overhaul was completed at Fremantle, Australia. On September 8, departed on current patrol.

1125 - Underway in accordance with Combat Group 51.1 operation order No. 51-42 which is quoted in part as follows:
"STARFISH will conduct an offensive war patrol against enemy combatant, supply and transport shipping. Soricie through BOOM GATE, Fremantle, at about zero three hundred zed Tuesday, September eight, nineteen forty-two. Proceed via sweet channel to an exercise area north of Rottncst Island for practice approach. Upon completion of exercise proceed through eastern half of Bombing Restriction Lane to latitude 22 degrees south, thence to Exmouth Gulf. Fu1 to capacity and proceed via Lombok Strait, Inakassar Strait, Sibutu Passage and Cuyo East Pass to your patrol area. You will patrol the western coast of Luzon between latitudes thirteen degrees forty-five minutes North and seventeen degrees zero zero minutes North. The western limit of your area is longitude one hundred eighteen degrees East.
Day particular attention to the Manila Bay area. In case anti-submarine measures become too active off Manila Bay move to another section of your area endeavoring to keep on the main traffic lanes".

1550 - Completed approach on U.S.S. ISABEL. Foor visibility due rain storms, and periscope casualty to limit switch rendered excessive ineffective. Received visual dispatch from Combatant to proceed on duty assigned. Set requisites course at speed 13.5 knots.

2000 - Posit: Latitude 31-13.0 S Longitude 114-42.0 E.
SECOND DAY - September 9, 1942.
Surface patrol enroute Exmouth Gulf via Bombing restriction Lane.

0812 - Exchanged recognition signals with southbound U.S.S. TATOC in 1.titude 29-04 S Longitude 112-57 E.
Posits: 0800 Latitude 29-06.0 S Longitude 112-59.0 E
1200 Latitude 23-25.5 S Longitude 112-20.0 E
2000 Latitude 26-25.5 S Longitude 112-20.0 E
Miles 254.7 Course 329(T) Speed 13
Fuc1 37

-1-

— page 141 —
1623 - Submerged for trim and drill.
1350 - Surfaced, exercised gun's crew, firing two rounds and continued enroute [Xenophon Gulf].
Posit: 0300 Latitude 23-39.0 S Longitude 112-30.0 E
    1200 Latitude 22-42.0 S Longitude 112-40.0 E
    2000 Latitude 21-27.5 S Longitude 112-37.0 E
Hiles 341.9 Course 358.5(T)  Spoed 13,8
Fuel 5230

FOURTH DAY
September 11, 1942.
Surface patrol enroute Xenophon Gulf via Bombing
Restriction Lanes.
0606 - Sighted U.S.S. W. B. FRISTON entering Xenophon Gulf.
0703 - Exchanged recognition signals via searchlight with BY
at entrance gulf.
0745 - Interrogation Gulf.
0938 - Exchanging recognition signals and calls with W. B. FRISTON.
1012 - Hooded to fuel barge.
1030 - Commenced fueling.
1235 - Completed fueling have received 13,350 gallons.
1515 - Underway from barge, having spent intervening time in
unsuccessful attempt to locate air leak in 4.1.5.T.
1745 - Cleared Xenophon Gulf.
1345 - Submerged for trim and training.
1927 - Surfaced and proceeded enroute Lombok Strait at speed
14 knots, "lannin" to make daylight landfall on Lombok
Island, and to transit . Strait during dark.
Posit: 0300 Latitude 21-46.0 S Longitude 114-16.0 S
    1200 Latitude 22-15.0 S Longitude 114-09.5 S
    2000 Latitude 21-28.5 S Longitude 114-02.1 S
Hiles 201.9 Course 072(T)  Spoed 3.6
Fuel 2061

— page 142 —
0809 - Sighted "BY bearing 100(T), distant 12 miles on northerly course. Not sighted so did not dive.
: 1200 - Exercised 3" gun crew, firing 7 rounds. Exercised 50 calibers M.G. crews.
: 2000 - Latitude 15-4.2 S Longitude 114-41.0 S
: 1200 - Latitude 17-37.7 S Longitude 114-20.8 S
: 2000 - Latitude 15-4.2 S Longitude 114-41.0 S
: 1200 - Latitude 15-4.2 S Longitude 114-41.0 S
: 2000 - Latitude 15-4.2 S Longitude 114-41.0 S
: 1200 - Latitude 15-4

— page 143 —
1942

S.S. SPARFISH
September 15, 1942.

Surface patrol transiting Lombok Strait.

0230 - Completed transit, nothing sighted.

0532 - Submerged.

1230 - Sighted two sailboats bearing 011(T), distant 3-9 miles on westerly courses.

1716 - Tade landfall on Scalia Island, distant 10 miles.

1908 - Surfaced. Set course to make landfall on Lima Islands.

2030 - Sighted U.S. Submarine in latitude 07-01.8 S; longitude 116-28.5 E, bearing 085(T), on southerly course at estimated speed 12 knots, range 3 miles. Probably either SAURY or SORDFISH scheduled to pass this date. Angle on bow at sighting about 40 S, so silhouette c well identified. Three minutes after sighting, submarine submerged. Cleared area at full speed. No recognition exchanged.

Posit: 0800 Latitude 7-36.2 S Longitude 116-10.3 E
1200 Latitude 7-23.2 S Longitude 116-11.3 E
2000 Latitude 7-02.0 S Longitude 116-22.2 E
Miles 152.6 Course 018(T) Speed 6.1
Fuel 1766

NINTH DAY
September 16, 1942.

Surface patrol transiting Makassar Strait via Lima Islands.

0545 - Sighted Sibaru Island bearing 355(T), distant 10 miles.

0550 - Submerged.

0842 - Changed course to head for Cape Tandar.

1843 - Surfaced.

Posit: 0800 Latitude 5-11.8 S Longitude 117-05.5 E
1200 Latitude 5-04.0 S Longitude 117-11.5 E
2000 Latitude 4-40.0 S Longitude 117-34.0 E
Miles 165.2 Course 023(T) Speed 6.5
Fuel 1504

— page 144 —
1942

S.S. SPARFISH
September 17, 1942.

Surface patrol enroute Lima Islands to Cape Manda.

0234 - Manuvered to avoid sailboat sighted close aboard (400 yards) bearing 340(T), on southerly course, (Latitude 3-41.0 S Longitude 118-16.3 E). Slowed and observed sailboat, apparently native craft enroute Cape Manda to Lima Island.

0520 - Submerged.

1046 - Surfaced. During submerged patrol sighted sailing craft (3) at various intervals all of which appeared to be on northerly course and all of which passed out of visibility range hull down. No details distinguishable.

Fosit: 0800 Latitude 3-11.1 S Longitude 118-30.5 E
1200 Latitude 3-06.0 S Longitude 118-37.0 E
2000 Latitude 2-42.7 S Longitude 118-51.8 E
Miles 151.3 Course 036(T) Speed 6.0
Fuel 1290

ELEVENTH DAY
September 18, 1942.

Surface patrol Makassar Strait. Rain storms and lightning, poor visibility 200 - 1000 yards.

0439 - Sighted sailboat bearing 345(T), distant 500 yards on southerly course. No opportunity to observe due visibility.

0515 - Submerged. Decided to patrol along longitude 119-00 E, enroute Langkahuah. Enemy reported to pass this vicinity during daylight.

1936 - Surfaced.

Fosit: 0800 Latitude 0-59.2 S Longitude 113-43.8 E
1200 Latitude 0-52.0 S Longitude 113-46.0 E
2000 Latitude 0-27.0 S Longitude 118-52.2 E
Miles 140.6 Course 004(T) Speed 5.8
Fuel 1735

TENTH DAY
September 19, 1942.

Surface patrol Makassar Strait to Sibutu Passage.

0316 - Sighted Cape Mankalahi bearing 340(T), distant about 20 miles. Our position determined to be some 60 miles south of D.R.

0538 - Submerged.

1023 - Surfaced.

— page 145 —
5-12N, 125-45E
: 0342, 1445
: 119-25.0, 119-25.0
: 2000, 2000
: 5-45.5, 5-45.5
: 119-25.0, 119-25.0
: 2000,

— page 146 —
0525 - Hada landfall on mountain of Mindanao.

: 0522 - Submerged and ran along steamer lanes about 3-4 miles off coast between Sibuco Bay and Dulunguin Point sighted nothing except 3 native bancas, but 2-3 miles off Nantibug Point on northerly and southerly courses. Investigated two bancas at close range, noticing sugestious.

: 1823 - Surfaced 5 miles N.7. of Dulunguin Point and proceeded long Manila-Zamboanga traffic lane, enroute Naso - oint. During day completed repairs to hydraulic system, which has been out of adjustment during past two days, causing pump to run continuously when system was operated.

Posit: 0800 L.titude 07-26.7 N Longitude 121-48.9 S
1200 L.titude 07-29.4 N Longitude 121-57.3 S
2000 L.titude 08-07.0 N Longitude 121-50.5 S
Miles 187.7 Course 04-7(T) Speed 7.0
Fuel 2315

SIXTEENTH DAY
September 23, 1942.

Surfaced patrol enroute Dulunguin Point, Hindano to Naso Point, Pang.

: 0516 - Submerged and patrolled vicinity Naso ooint.

: 1830 - Surfaced and proceeded 1200 East Pass via Cuyo Test Pass, passing about 5 miles northeast of Sombrero Rock.

: 1911 - Sighted 8.1 boat bearing 024(T), distant 5000 yards on northeasterly course, in position Latitude 10-40.3 N, Longitude 121-40.0 S, arrived to be native banca enroute Dalipo Point.

: 1936 - Sighted Sombrero Rock at distance of 6 miles, moonlight visibility excellent.

: 2100 - Passed thru intermittent rain squalls which lasted until 2300.

: 2315 - Obtained fix on Cuyo Island at distance of 12 miles and got course for 1200 East Pass.

Posit: 0800 L.titude 10-10.1 N Longitude 121-45.3 S
1200 L.titude 10-17.5 N Longitude 121-47.0 S
2000 L.titude 10-44.0 N Longitude 121-36.1 S
Miles 175.1 Course 35(T) Speed 7.1 Fuel 1947

— page 147 —
0204 - "While in 1.1.titude 11-57.3 N, Longitude 120-52.2 T, course 332(T) speed 1+ knots, sighted hazy outline of ship bearing 004(T), distant about 9 miles, striding out of Apo Fast Pass on southeasterly course. Rovsred course and maneuvered at speeds 0-14 knots (keep ship in sight) to attain dawn attack position dead ahead of target. Varying visibility due intermittent rains necessitated waiting for target to close range before it was practicable to increase speed and on range."

: 0400 - Sighted target bearing 340(T), range about 12000 yards.

: 0512 - Submerged on course 160(T), with target bearing 340(T), course 160(T), speed 9-10 knots and range about 16000 yards. (Sunrise 0546).

: 0531 - Rovsred course and at 0532 sighted target moving about 15 degrees to right and left of base course. Target thought to be combination freighter and tanker.

: 0552 - Identified target as min.layer or depth charge ship of about 3000 tons.

: 0603 - Attacked with three torpedoes from stern tubes at range of about 600 yards in latitude 11-32.3 N, longitude 121-07 E. Saw second torpedo hit slightly aft stack and heard tremendous explosion 3 seconds after firing. A stream of flame shot 100 feet in the air, smoke rose about 300-400 feet and debris could be seen flying about. The ship appeared to stay at that height and struck and sank to port, but came up and stern started down. The survivors of the submarine after the observation were based on a misunderstanding of the situation.

1. Sound reported bearing on third torpedo fired, to be changing rapidly to the left. Went to 200 feet and abandoned coming toward. Towed to avoid squall. Later analysis showed we were swinging slowly to starboard and moved forward this fish had a 32 left gyro set on it.

2. Sound reported that the forward airstrike on starboard beam which might be projectile. Ranged for depth charge attack and changed course to port, thinking there might be escorting DD about. Report for the last 5 minutes of the approach. DD was now on the bow of the ship. It was now more than 5 degrees, so I had crossed very little riscope and had not located to take more than one or two cursory glances all around.

3. Sound reported disturbances still audible, and now having had time to check the sound bearing, and the course started during last few minutes, realized we were close to torpedo ship, so cleared area at full speed.

— page 148 —
1942 (Cont'd).

If the ship carried mines and was sinking, it was better not to be close aboard when they exploded, if they did.
4. Heard fairly distant explosion about 6 minutes after firing, but couldn't determine its distance or bearing.
Decided it might be either depth charge or torpedo.
Still waiting for third torpedo to explode, sound not able to hear it because of own speed.
5. Ten minutes after firing, sound reported all quiet.

064C - Periscope depth, about 2 miles from firing position.
Nothing in sight although about 6-8 feet of periscope exposed. It is believed that explosives carried aboard the minelayer blew up when the torpedo hit the ship sank shortly thereafter. One of the two expended torpedoes exploded at end of run.

0730 - Conducted submerged patrol on north east course, between Cuyo and Samarra Islands. Desired to obtain fix prior passage of shoals south of 2000 Tast Pass.

101E - Surface and set course for 2000 Tast Pass.

- [OSIT: 0800 Latitude 11-3.4° N Lonitude 121-11.0° W]
- [1200 Latitude 11-37.0° N Lonitude 121-20.5° W]
- [2000 Latitude 11-37.7° N Lonitude 121-26.0° W]
- [Miles 162.4 Course 329(T) Speed 3.5]
- [Fuel 1501]

EIGHTEENTH D.Y
September 29, 1942.

Surface patrol enroute to and transiting 2000 Tast Pass.

0350 - Submerged upon sighting small ship at 11.00 Tast reporting soundless at latitude 12-45 N, longitude 120-44 T, on southwest coast. This small boat suddenly appeared out of shadow of the French Islands. No positive means of identification. Desired to come to transit of this narrow portion of pass undetected if possible. Object sighted probably shallow, since sound could hear nothing after the submerged.

1343 - Surfaced and set course for assigned area, north of Cabo Island. Visibility poor, hazy with intermittent rain.
Posit: 0300 Latitude 12-37.2° N Lonitude 120-43.5° W]
- [1200 Latitude 12-44.0° N Lonitude 120-44.5° W]
- [2000 Latitude 12-45.0° N Lonitude 120-13.3° W]
- [Miles 132.7 Course 332(T) Speed 3.2]
- [Fuel 1134]

— page 150 —
1942 (Cont'd).

1256 - With Tambobo point bearing 04(T), distant 5 miles, sighted most and single strike at 15-55.0 N, lon latitude 119-44.0 E, bearing 104(T), distant about 6000 yards, on course 150(T), spaced 15 knots (200 rpm by sound), and large strabord angle on bow. From plot of bearings, it appeared that submarine passed 300 yards and maintained close watch in hope of intercepting any ship that was about to pass. Nothing started.

1324 - Surfboard about 5 miles off coast and commenced patrolling north-west and northeast across expected traffic lanes.

2000 - Continued to westward when heavy rains set in, visibility zero, barometer having dropped about 6 points.

Posit: 0500 Latitude 15-45.0 Longitude 119-37.5
1200 Latitude 15-52.2 Longitude 119-42.0
2000 Latitude 16-00.5 Longitude 119-36.0
Miles 140-3 Course 3-00(T) Spocd 4.5
Fuel 1452

T.T.T. SECOND DAY

Surf. control east and west about 9-12 miles off Tambobo point. Continuous heavy rain, visibility zero to 1000 yards, all night.

0450 - Submerged in estimate position about 10 miles west of Tambobo point. Heavy intermittent rain, visibility about 1000 yards or less.

0000 - Visibility increased to about 3000 yards with intermittent rain squalls. Close coast to estimated distance of 4 miles without sighting land. Visibility bad. Patrolled by 15-20 miles off coast, not within 3000 yards of shore.

1824 - Surfaced in heavy rain over a clear coast to westward. Heavy rain, high seas, and falling barometer with indication of a strong typhoon. Patrolled east and west about 15-20 miles off coast, trying to plot a chart of storms.

Posit: 0300 Latitude 15-39 N Longitude 119-36.0
1200 Latitude 15-50 N Longitude 119-41.0
2000 Latitude 16-10 N Longitude 119-31
Miles 36.2 Course 3-47(T) Spocd 0.2
Fuel 447

— page 151 —
3-2-3-2-2-T
U.S.S. S. E. ARFISH
1st MY THIRD DAY
September 30, 1942.

Surfaced patrol about 6 miles off Cape Bolinco, heavy rains hit seas.

0:00 - "Find and sea mod.rated slightly. Visibility between zero and 1000 yards.

0505 - Submerged to give officers and lookouts a rest. "Inc., sea and rain increased during day.

151C - Surfaced in midst of typhoon, wind force 10, mountainous seas and intermittent heavy rain, barometric 28.40 (1.29 below normal), visibility about 200-300 yards or less. Considerable water was taken in the conning tower and control room during surf.rains, but no extensive damage occurred. The only practical course with the main induction open was into the sea at slow speed. Little difficulty was experienced while obtaining a battery charge. Steared course 220(T) (into seas) at speed about 3-4 knots.

Posit: 0800 Latitude 16-19.8 N Longitude 119-22.0 W
1200 Latitude 16-19.8 N Longitude 119-30.0 W
2000 Latitude 16-13 R Longitude 119-24 E
Miles 75.9 Course 335(T) Speed 1.0
Fuel 510

TENTY FOURTH DAY
October 1, 1942.

Surface patrol course 22C(T), speed 3.5 knots while riding out typhoon, practically all hands sick from "hangar on". Force of wind decreased from 10 to 6 but high seas and intermittent heavy rain persisted. Barometer rising slowly. Conducted surface patrol throught day. Visibility between rain squalls 1-4 miles. Estimated position about 35 miles off coast.

2300 - Changed course to S.E. to close coast, seas heavy subsided somewhat.

Posit: 0800 Latitude 15-50 W Longitude 119-09.6 W
1200 Latitude 15-53 W Longitude 119-07 W
2000 Latitude 15-43 W Longitude 119-09 W
Miles 72.5 Course 220(T) Speed 1.5
Fuel 1019

TENTY FIFTH DAY
October 2, 1942.

Surface patrol on southeasterly course to close coast of Luzon, wind and seas heavy moderate considerably. Intermittent rainstorms.

-12-

— page 152 —
5-0-C-R-0-T U.S.S. CAPRIFISH
October 2, 1942 (Cont'd).

0510 - Submerged about 15 miles northwest of Capones Island, closed coast and conducted patrol along 50 fathom curve northwest of Capones Island. Heavy seas, fair visibility with light rains.

1035 - Surfaced, and patrolled south and then east in vicinity of Capones Island.

Posit: 0800 Latitude 15-03.0 N Longitude 119-52.0 E
1200 Latitude 14-45.0 N Longitude 119-53.3 E
2000 Latitude 14-46.0 N Longitude 119-54.5 E
Miles 121.2 Course 141(T) Speed 3
Fuel 1180

TENTATIVE DATE: OCTOBER 3, 1942

Surface patrol along coast in vicinity of Capones Island.

0400 - Submerged 11 miles bearing 272(T) from Capones Island light.

0927 - While in position Latitude 14-53.1 N; Longitude 119-52.3 E, sighted mast and superstructure of two cargo ships bearing 050(T), distant 7-8 miles on southeast by course at estimated speed 14 knots. Connected a.roach but unable close range below 6000 y.r.ds. Changed course so as to reach patrol position closer inshore.

15.6 - While in position Latitude 14-47.2N; Longitude 120-01.2 E sighted mast and superstructure of large passenger type ship bearing 211(T), distant about 10-12 miles on northwest by course at approximately speed 10-12 knots. Unsuccessfully attempted to close range. Since I had missed an opportunity for attack on first ships sighted by b in too far off the beach, and then missed another opportunity by being too close inshore, determined to try it, surface at sunset and if possible, overtake last ship sighted.

1600 - Surfaced and proceeded on course 345(T) at 1-16 knots in attempt to overtake enemy.

Posit: 0800 Latitude 14-52.2 N Longitude 119-51.2 E
1200 Latitude 14-52.6 N Longitude 119-50.7 E
2000 Latitude 15-06.5 N Longitude 119-51.3 E
Miles 85 Course 136(T) Speed 0.25
Fuel 616

-13-

— page 154 —
5-2-C-R-T
October 5, 1942 (Cont'd).

Posit: 0500 L.titude 15-46.0 N
1200 L.titude 15-51.0 N
2000 L.titude 15-55.3 N
Miles 84
Course 162(T)
Speed 1.0
Fuel 405

TENTY NINE DAY
October 6, 1942.

Surface patrol 6-3 miles off-shore between Tambo Point and Capone Island.

1027 - Surfaced and stood south enroute position for patrol off Corregidor.

Posit: 0500 L.titude 14-56.0 N
1200 L.titude 14-46.0 N
2000 L.titude 14-22.5 N
Miles 120
Course 3-6(T)
Speed 2.7
Fuel 602

TENTH DAY
October 7, 1942.

Surface patrol enroute Capone Island to station off Corregidor, heavy rain clouds and intermittent rain, visibility 500-3000 yards. Stopped westward during rain storm while charging batteries.

0400 - Submerged with Corregidor bearing 056(T), distant 14 miles, and conducted patrol submerged along 50 fathom curve between old "Joint 1" and Luzon Point, periscope watch maintained continuously, surface condition ideal with plenty whitecaps and visibility the best so far encountered this area.

0500 - While in position Latitude 14-16.9 N; Longitude 120-21 E, sighted ship about 2 miles 3.7. of Luzon point, bearing 005(T), distant 15000 yards on southeastly course. Commenced approach.

0610 - Discontinued approach when ship was identified as small patrol, station ship or possibly mineweeper of about 800-1000 tons, apparently on a sweep or listening patrol between Luzon point and point midway between Fortune Island and Fuego Point. Since presence this patrol might indicate traffic about to move from Manila, decided remain unobserved. Tracked target and obtained periscope photo.

-15-

— page 155 —
5-2-C-R-T U.S. S.S. S.E.R.PISH
October 7, 1942 (Cont'd).

At 0920, patrol ship entered Manila Bay thru south channel. ...t 1240, observed masts of patrol ship standing out of south channel. She circled Corregidor at a distance of about 3 miles and entered north channel.

1501 - While in position 11.0 miles bearing 237(T) from Corregidor Light and having just completed periscope sweep for air craft, received two aerial bombs which landed about 500 yards from ship. Went to 200 feet and changed course to S.7. at 1600, visibility excellent sky overcast, sighted nothing. At 1700, r.ins set in, visibility decreased to 1000 yards, stood to westward in order surface clear of area where bombed. At 1825, sound reported light fast screws bearing 235(T). Sighted nothing, visibility poor due storm clouds and rain.

1505 - Surfaced and stood to westward in rain squalls, while charging and then to northward to arrive at dawn position off Capones Island for submerged patrol along traffic lane just south of Capones Island.

| Date       | Time       | Location         | Details                                                                 |
|||||
| 1505      | 0900       | Latitude 14-17.2 N | Longitude 120-23.9 E                                 |
|            |             | Latitude 14-17.5 N | Longitude 120-21.1 E                                 |
|            |             | Latitude 14-15.0 N | Longitude 120-07 E                                 |
|            |             | Latitude 15-15.0 N | Speed 1.6                                                      |
|            |             | Latitude 150(T)   | Fuel 575                                                             |

TARGET DATE: OCTOBER 6, 1942.

Surfaced patrol off Luzon to position southwest of Capones Island. ...line near ships have been sighted in this locality than in any other, and since southbound traffic lane passes close to hundred fathom curve, it very permitting continuous periscope watches, decided to conduct alternate submarine patrols between her and a position off Corregidor. Visibility about 2000 yards, storm clouds and intermittent rain.

0444 - Submerged about 5-6 miles southwest of Capones Island, visibility having decreased to 200 yards due heavy rain. Patrols at N.7. - S.3. 0 mile line along 100 fathom curve 6 miles south of Capones Island. Visibility fair at times, heavy swells.

1829 - Surfaced about 9 miles off coast in rain, visibility about 5000 yards, shore line obscured by black clouds. Stood to westward and then south at 4 knots charging batteries.

-16-

— page 156 —
2051 - Sound reported screws bearing 147(T) own position
    Latitude 1-40 N; Longitude 119-50 W. Sighted nothing.
    Sighted dark shape bearing 217(T), distance unknown
    Probably 4000 yards. Closed shape which carried to be
    V.ry small, decided to trail to determine course and
    speed prior attack.

2200 - Determine enemy course. See 290(T), speed about 10 knots.
    Commenced closing enemy.

2219 - Enemy ship considered similar with bilinear tube in our
    direction. Had torpedo tubes ready. Noticed other signal
    lights appearing to south and west of us. Two and
    sometimes three shapes could be distinguished. Since
    this appeared to be convoy assembly point, and since
    appeared to be in the center of it, without knowing
    force and composition, decided to remain in vicinity
    until convoy assembled, then trail and attack as opportunity permitted. Navigational position of assembly point:
    Latitude 1-42.5 N, Longitude 119-35 E. Ships continued
    on course 290(T) for about three miles, then changed to
    course 330(T). Appeared to be two large ships with one
    escort. The smallest ship appeared and close aboard,
    first patrolling one flank and then the other. About
    every half hour or so she would flash a signal apparently
    for recognition purposes. With the visibility prevailing,
    dark clouds on horizon, it was impossible to obtain
    data accurate enough for attack, there for determined to
    trail until dawn, only making surface attack if visibility
    decreased to such an extent that contact could not be
    maintained.

Posit: 0300 Latitude 1-42.5 N Longitude 119-56.9 E
    1200 Latitude 1-42.8 N Longitude 119-50 E
    2000 Latitude 14-45.7 W Longitude 119-50 E
    Miles 82 Course 324(T) Speed 1.5
    Fuel 1063

TIRTY-SIXTH DAY
October 9, 1942.

Surface patrol trailing convoy.

0200 - Determined convoy course to be 330(T), speed 6 knots.
    Passed around flank and got in position ahead, still
    maintaining contact.

0530 - Sighted mast of ships and submerged.

-17-

— page 157 —
3-2-C-R-1-T U.S.S. STRIKE
October 9, 1942 (Joint)
05+2 - Sighted convoy consisting of three ships on escort DD of the "LATIN" class. Their the fourth ship came from was not escorted. Connected approach. Very heavy shells, and difficult to maintain depth, resistance either foot under or 5-0 feet out. Ship's speed to be 4000-9000 tns. Largest just stern the DD, then the 4000 tonner and last in column on of 7000 tons. Decided to attack largest. Then on course for 60 st.bro.rt. track straight shot at about 4000 yards range, the DD headed directly for us. Ch.ngg course to right and with periscope bobbing from -1 to 16 feet passed about the DD at distance of 1200 yards. Only shot possible was a 90 degree gyro which did not offer much possibility of success. First ship of convoy now was scented very small angle on bow, and last immediate fully damaged course in wake of the destroyer which had commenced weaving to right and left. This maneuver appeared to be a course change and not a zig, so maneuvered to attack last ship in column.

06-6 - Fired three torpedoes at last ship in column. Heard two explosions about 2 minutes after firing. At periscope depth, but periscope bobbing up and down so did not observe hits. About 20 seconds after second explosion, observed clouds of smoke pouring from stern of ship. Sound reported severe had stopped. Observed torpedoed ship for about three minutes after last explosion, but her stern did not seem to be settling very rapidly. It also on of the torpedoes to hit was itted with a large warhead. At 0651-35 he read the last explosion assumed to be expended torpedo. At 0652 sighted destroyer heading for our impulse bubble. At 0653, while going deep, heard 3 depth charges about 300-900 yards distant and at 0655, three more much closer. At 0700, one depth charge quiet distant. Since DD was not pinching run silent on southwesterly course. At 240 feet. Sound reported much water disturbance near cracking noises in direction of torpedoed ship. The DD remained in the vicinity for about an hour, apparently stopped. At 1600, finally, at 1700, the DD ran for 3-4 minutes, but did not drop any more charges. Total result of depth charges was 3 broken bulk fill. nets, some paint chipped off. TR bulkhead and a nut cracked off C.T. ladder. After surf.cing, ship developed a starboard list probably due to some corrosion holes in 10 lb blow riing.

-18-

— page 158 —
3-3-C-R-T
U.S.S. CARPISKI

October 9, 1942 (Cont'd).

0810 - Periscope depth. Fathom in sight. Continued submerged patrol at periscope depth. This area to be the dusk position for ships' routes from ports south of Manila. Apparently the ship was following the assembly point was a DD escort sent out from Manila Bay.

0830 - Noticed large air leak. Tried various methods of stopping leak, unsuccessful. It finally closed.

1820 - Surfaced. Leaky vent starboard side #3 M.T. caused list, necessitating running with flood valves that closed.

Fossit: 0800 Latitude 15-25 N Longitude 119-07
    1200 Latitude 15-15 N Longitude 119-03
    2000 Latitude 15-05 N Longitude 115-50
Niles 113 Course 299(T) Speed 2.6
Fuc1 1061

-19-

— page 159 —
0512 - Submerged patrol along tr.ck between Cabra Island and convoy assembly point. Maintaind continuous periscope watch, except for two hour period when heavy swells interfered.

: 1830 - Surfaced. Conducted surface patrol north; ast of Cabra then stood south;st to close Corridor. Visibility exceptional for this locality, only one hours light rain.

: Posit: 0800 Latitude 1-25 N Longitude 119-40.0 E
    1200 Latitude 1-21.1 N Longitude 119-46.0 E
    2000 Latitude 14-09 M Longitude 119-51 E
Miles 127 Course 143(T) Speed 2.9
Fuel 10-0

: TIRTY FOURTE D.Y. October 11, 1942.

: Surface patrol on southcastely course closing Manila Bay entrance.

: 0453 - Submerged 23 miles bearing 255(T) from Corridor light.

: 0546 - Sighted smoke, then mast and top of stack of ship in Latitude 1-25 N, Longitude 120-15.5 E, 030(T), distant about 9-10 miles on southcastely course. AmI on bow about 35 starboard, commenced a'rough but impossible to close r.n'gc. Ship which appeared to be the same minesweep or patrol ship sighted October 7, 19+2, dis. reported on northeasterly bearing probably north-north channel. Continued submerged patrol about 1 mile off 100 ft. from curve west of Corridor. Visibility good, surface flat. Call. Ran at 50 feet with periscope observations every 15 minutes. About 1600, rains set in, so cleared to westward prior surr.ci.n.

: 1320 - Surfaced in rain. Visibility about 500 yards. Ran east and west while charging, then when visibility improved (about 2300) proceeded toward C.pones Island.

: Posit: 0800 Latitude 14-18.0 N Longitude 120-15.0 E
    1200 Latitude 1-20.2 N Longitude 120-16.2 E
    2000 Latitude 1-15.0 N Longitude 120-13.0 E
Miles 75 Course 092(T) Speed 1.2
Fuel 403

— page 160 —
5-2-C-3-2-T U.S.S. S.S. ARRIFT
TENTATIVE DATE: October 12, 1942.
SURFACE PATROL MANILA: By entrance to Capone Island.
VISIBILITY IMPROVED, about 6000 yards.

0500 - Submerged about 5 miles southwest of Capone Island.
Light and run submerged, patrol about 4 miles off shore,
along the 100 fathom curve, south of Capone Island.
Visibility excellent. At 1:00, stood to southwest
to cover northbound traffic from Manila and the
south, having decided to conduct a night's surf. Patrol
in vicinity of apparent assembly point - at Latitude 14-25;
Longitude 119-35, and on off shore, submerged
patrol north of this position.

1025 - Surf. cod and proceeded west of assembly point.

Posit: 0800 Latitude 14-30 N Longitude 119-59.5 E
1200 Latitude 14-42 N Longitude 120-00 E
2000 Latitude 14-42.2 N Longitude 119-39.0 E
Miles 89 Course 323(T) Speed 1.1
Fuel 206

TENTATIVE DATE: October 13, 1942.
SURFACE PATROL VICINITY: 14-42 N; Longitude 119-35 E.
0521 - Submerged and patrolled vicinity convoy assembly point.

1513 - Surf. cod and proceeded to position about 3 miles
west of Luzon Point.

Posit: 0800 Latitude 15-10.5 N Longitude 119-32.4 E
1200 Latitude 15-13.3 N Longitude 119-44.0 E
2000 Latitude 15-08.9 N Longitude 119-28.8 E
Miles 30 Course 354(T) Speed 1.5
Fuel 520

TENTATIVE DATE: October 14, 1942.
SURFACE PATROL ENVOY ASSEMBLY POINT: to position
off Luzon Point.

0514 - Submerged about 6 miles west of Luzon Point and
patrolled 6-8 miles off shore between Point. firm and
Luzon Point.

1827 - Surf. cod about 20 miles west of Corregidor and stood west
during rain while charging b. t. fires. During night patrol
fled north and south between entrep. Subic and Manila
B. Ys.
-21-

— page 161 —
5-0-C-R-T
October 1st, 1942.
Posit: 0800 Latitude 14-21.0 N Longitude 120-19.0 E
1200 Latitude 14-23.0 N Longitude 120-15.3 E
2000 Latitude 14-15.0 N Longitude 120-05.0 E
Miles 89.2 Course 14-8(T) Speed 2.4
Fuel 383

TURKEY TIGHTENING DAY
October 15, 1942.
Surfaced 11 miles south of Sunset to east of the
Portland 5-7 miles off shore to east of the
Portland.

1025 - Surfaced about 10 miles south of Corregidor
while charging the torpedo tubes. Surfaced 20 miles
off the south of the B.R. Islands. Surfaced 16
miles off the south of the B.R. Islands. Surfaced
about 20 miles off the south of the B.R. Islands.
Corregidor.

Posit: 0800 Latitude 14-28.3 N Longitude 120-14.1 E
1200 Latitude 14-25.0 N Longitude 120-19.7 E
2000 Latitude 14-1.0 N Longitude 120-12.0 E
Miles 117 Course 265(T) Speed 0.15
Fuel 697

TURKEY WINTER DAY
October 16, 1942.
Surfaced about 20 miles west of Corregidor between
16 fathoms and 5 fathoms.

0503 - Submerged and conducted 2 trials in vicinity of Point Afima.

165 - Surfaced and proceeded westward in accordance with orders
to leave area on October 16.

1559 - While in position Latitude 14-13.0 N, Latitude 120-
14.6 E sighted outlying small ship resuming small
destroyer or submarine, bearing 350(T), dist 3000
yards on southeast by southwest. Light 1-st screws, speed
about 1-15 knots. Ship disappeared in direction of
Sino Banks at 1915. She reached north of Sino Banks until
2100, and then proceeded north to St. Pass.

*2050 - Posit: 0800 Latitude 14-20.4 Longitude 120-20.0 E
1200 Latitude 14-16.0 N Longitude 120-26.8 E
2000 Latitude 14-10.3 N Longitude 120-20.6 E
Miles 83 Course 135(T) Speed 0.4
Fuel 408

*2050 - Decoded CTF 51 dispatch to 160925 requesting information
relative endurance to proceed Brisbane.
-22-

— page 162 —
5-2-C-R-2-T U.S.S. S.S. RIFISH
FORTITUDE DAY October 17, 19-2.
Surface patrol enroute to East Pass.
0507 - Submerged 10 miles west of Panama Island.
132 - Surface 12 miles west of Nautilus Island, not proceeded via Cuyo Islands to N. Sea Point.
232 - Transmitted SPARFISH 71507 giving results and stating we had sufficient endurance to proceed Brisbane.
FORTY FIRST DAY October 18, 1942.
Surface patrol enroute to East Pass to N. Sea Point.
0500 - Submerged 6 miles NW of Jaldan Point, Navy and patrolled south about 4 miles off coast.
1616 - Surface about 10 miles south of Nasa Point and proceeded enroute Pearl Bank.
Posit: 0800 Latitude 10-3.0 N Longitude 121-6.7 E
1200 Latitude 10-2.1 N Longitude 121-5C.0 E
2000 Latitude 09-53.8 N Longitude 121-45.8 E
Miles 153 Course 155(T) Speed 6.3 Fuel 1307
FORTY SECOND DAY October 19, 1942.
Surface patrol Sulu Sea.
0036 - Transmitted S.S.RIFISH 161621 rel. live tr.ffie 'Kanila' area.
0513 - Submerged, overcast with intermittent rain.
1603 - Surface and continued enroute Pearl Bank.
Posit: 0800 Latitude 03-34.9 N Longitude 121-07.8 E
1200 Latitude 08-25.8 N Longitude 121-02.2 E
2000 Latitude 07-52.0 N Longitude 120-3.0 E
Miles 142 Course 201(T) Speed 5.3 Fuel 1234
FORTY THIRD DAY October 20, 1942.
Surface patrol Sulu Sea. Overcast, intermittent rain and poor visibility.
0534 - Submerged in estimated position 15-20 miles north of Pearl Bank.
-23-

— page 164 —
5-2-C-R-2-T U.S.S. SIRRIFISH
FORTY FIFTEEN DAY October 22, 1942
Surface patrol Columbus Sea north of Saranaki Islands.
Pos: 0800 Latitude 0+-46.0 N Longitude 122-26.2 E
1200 Latitude 0+-7.1 N Longitude 122-3.3 E
2000 Latitude 0+-50.8 N Longitude 123-16.1 E
Miles 163 Course 081(T) Spec. d 5.6
Fuc1 1374

FORTY SIXTEEN DAY October 23, 1942
Surface patrol Columbus Sea.
0454 Juneyrged southwest of Saranaki Island.
1200 - Set clocks to zone time minus nine.
1653 - Surfacd. Experienced heavy southwesterly set in passage
between Saranaki and Kawio Islands. Set course to pass
north of Talud Islands and then to Vitiz Strait,
passing within 8-10 mi. of Tobi Island.
2120 - Decoded CTF Fifty One 230755 (serial 43) ordering
SIRRIFISH to report to CTF Forty Two for duty. Decided
to remain r.port when 30-40 mi. distant from Talud
Islands.
2345 - Decoded CTF Fifty One 231400 (serial 44) requesting
information relative to SIRRIFISH despatch 171507, sent to
and receipted for by VIXO, but apparently not delivered.
Pos: 0800 Latitude 05-07.3 N Longitude 125-23.0 E
1200 Latitude 05-0+-4 N Longitude 125-29.6 E
2000 Latitude 05-01.8 N Longitude 125-32.2 E
Miles 163.2 Course 085(T) Speed 7.3
Fuc1 1842

FORTY SEVENTEEN DAY October 24, 1942
Surface patrol north of Talud Islands north of Vitiz
Strait.
0220 - Attempt a transmit descatches. Called VIF9 on 3-70 ke
until 0233 when shiftd to 0235 ke until 0240.

-23-

— page 166 —
1942 (Cont'd)
: 24-1503 (NR12) inferring CTFRISH of receipt of TT and assigning unit number in Task organization.
: Sunrise, continued surfacing patrol.
: Made landfall on Tobi Island which was passed at distance of 6 miles. Only sign of activity was native fire on 5th and 6th island. Much drifted and numerous logs and trace stumps in vicinity of island.
: Estimated fuel required for remainder of trip at economical speed to be 3-400 gallons. Fuel on hand 37000 gallons.
: Decided not to pass close to Helcon Reef since it threatened not operating.
: Decided CTF Party Two 25000 (NR 14) changing number in t.sk force organization.
: Posit: 0800 Latitude 02-56.5 N Longitude 131-00.0 E
: 1200 Latitude 02-29.5 N Longitude 131-27.8 E
: 2000 Latitude 01-55.0 N Longitude 132-51.2 E
: Miles 27C.5 Course 126(T) Speed 9.5
: Fuel 3577

FORTY-FIRST DAY
October 26, 1942.

Surface patrol enroute Vitiaz Strait.

0526 - Heavy passing rains. Submerged for trial training.

0647 - Surf. ended in r. in and continued enroute Vitiaz Strait.

Posit: 0800 Latitude 01-18 N Longitude 134-52 E
: 1200 Latitude 01-03 N Longitude 135-34 E
: 2000 Latitude 00-37.5 N Longitude 136-56 E
: Miles 256 Course 109(T) Speed 11.0 Fuel 2555

FIFTIEST DAY
October 27, 1942.

Surface patrol enroute Vitiaz Strait.

0555 - Sunrise. Continued on surf. around horizon. Course 114(T), speed 11.5 knots on 3-4 min ranges.

-27-

— page 167 —
5-3-2-1-0
U.S.S. STRIKE

October 27, 1942 (Cont'd).

1604 - Sighted rafts and upper works of enemy cargo ship breaking thru haze bearing 112(T), distant 11 miles. At 1606 dater-mined enemy ship to be zigzagging on approximate course of 300(T), angle on bow between 30 and 70 starboard. Distinquished rafts of destroyer escort stern not to south of cargo ship. Since it would be impossible to reach attack position submerged, c/c to 310(T) not then to 280(T) in effort to open range. All unsen run round enemy on surface prior subarrance. Enemy speed appeared to be 15 or more knots, and it was obvious that we would be sighted unless our speed could be increased. Raided into setting sun and started at 1/2°N in enigmas. Carriage probably sighted smoke and channel course to northeast. Destroyer increased speed, and headed towards. At 1637, with the DD overhauling us rapidly, submerged to periscope depth, changed course to north and rigged for depth charge. At 16-5, sighted DD bearing 100(T), distant 6000 yards, angle on bow about 30 port. A few minutes later, the DD reported sighted our diving slick in the flat sea, not dead for it. At 1655, three depth charges at about 2000 yards. Since we was flat calm, and DD was still heading towards with stern still on bow, increased speed to 2000 feet and changed course to 230(T). At 1707 three depth charges about 800 yards. Destroyer did not pin, but maneuvered on various courses at 1755 (1/2 minutes after sunset) until at about 17-0. At

— page 168 —
5-0-C-R-T-T U.S.S. SF-2-RFISH
October 29, 1942. (Cont’d).

Posit: 6800 L.titude 01-37.0 S
1200 L.titude 01-39.9 S
2000 L.titude 01-52.7 S
Miles 17.4 Course 116(T)
October 29, 1942.

Surf. co. patrol en route Vitiz str. it.

04-2 - Submerged.

1200 - Set clocks to (-) 10 Z.T.

1844 - Surf. co.

Posit: 0800 L.titude 02-2.0 S
1200 L.titude 02-27.0 S
2000 L.titude 02-36.7 S
Miles 15.9 Course 109(T)
October 30, 1942.

Surf. co. patrol en route Vitiz str. it.

0522 - Submerged.

1702 - Made landfall on Karak Island distant 35 miles.

1830 - Surf. co.

Posit: 0800 L.titude 03-9.0 S
1200 L.titude 03-37.0 S
2000 L.titude 04-22.5 S
Miles 175.4 Course 127(T)
October 31, 1942.

Surf. co. patrol en route Vitiz str. it. Since sailing
directly on report she's to exist between B.gab.g Isl.and
and Hankow Reef, decided to pass submerged between Long
and Tolokiva Islands and to transit in r.r.w portion of
strait on surface.

0432 - Submerged.

1835 - Surf. co. h.v. experienced 1 knot south. rly set between
Long and Tolokiva Islands and 1 knot westerly set in Vitiz
Strait.

-29-

— page 169 —
1942 (Craft)
October 31, 1942 (Craft)
Posit: 6800 Latitude 05-13.2 S Longitude 147-19.5 E
1200 Latitude 05-31.2 S Longitude 147-37.0 E
2000 Latitude 05-51.8 S Longitude 147-37.0 E
Miles 138.9 Course 145(T) Speed 4.9 Fuel 1129

FIFTY FIFTH D.Y.
Surf.ce patrol enroute Rossel Island.
0500 - Submerged.
1200 - Set clocks to Z.D. minus (-) 11.
1933 - Surf.ced.
Posit: 0600 Latitude 06-40 S Longitude 148-56.5 E
1200 Latitude 06-23 S Longitude 148-53 E
2000 Latitude 06-30 S Longitude 149-17.4 E
Miles 130.2 Course 12(T) Speed 5.3 Fuel 1427

FIFTY SIXTH DAY
Surf.ce patrol enroute Rossel Island.
0555 - Submerged.
1924 - Surf.ced.
2255 - Decoded CTF Forty Two 202620 (NR37) giving information relative position of enemy to reports of destroyers, ordering STRAFFISH to attack interdicting, to remain in Hun Gulf until further orders, and to defer action called for by despatches NR 33 and 34. Despatch NR 3 was received at 0035/3 and NR 33 at 0237/3. STRAFFISH position at 2255 being about 200 miles east of reported enemy position, it was obviously impossible to intercept. By eliminating fuel safety factor and using 8-9 knots speed for return to Brisbane, sufficient fuel was available to permit return to Hun Gulf and to allow for a two day trial in that area. According to the records, 251(T) and proceeded Hun Gulf. No success has been had in attempts to receive "Bells" while submerged.

Posit: 0800 Latitude 07-32.2 S Longitude 151-01.2 E
1200 Latitude 07-36.1 S Longitude 151-10.2 E
2000 Latitude 07-44.3 S Longitude 151-26.0 E
Miles 100.6 Course 112(T) Speed 4.7 Fuel 1023

— page 171 —
2-E-C-R-T-U.S.S. S. LEFTH SHIP
November 6, 1942 (Cont'd).

0537 - Submerged not yet course to pass about 25 miles west of Peckin-tan Reef.

1925 - Surf. crew.

Posit: C800 Latitude 10-31.3 S Longitude 15-46.5 W
1200 Latitude 10-37.0 S Longitude 15-51.0 W
2000 Latitude 10-51.0 S Longitude 15-52.0 W
Miles 129.7 Course 155(T) Speed +.0 Fuel 1180

SIXTH FIRST DAY
November 7, 1942.

Surface patrol passing between Rassel Island and Pecan-tan Reef.

0530 - Submerged, tested trial and drain groups and lines at 210 feet.

1915 - Surf. crew.

Posit: Get course to pass between Konn and Frederiek Reefs enroute point Sud.

2032 - Transmitted GRIPSH to COMSOFAC for
JIVIN results, posit, RT. Point Bud and acknowledging receipt of all "Bells".

Posit: C800 Latitude 12-0-.0 S Longitude 155-3-.0 W
1200 Latitude 12-12.0 S Longitude 155-3-.0 W
2000 Latitude 12-45.5 S Longitude 155-3-.0 W
Miles 111.2 Course 157(T) Speed +.3 Fuel 1501

SIXTH SECOND DAY
November 8, 1942.

Surf. crew patrol enroute point Bud.

Posit: C800 Latitude 15-07.2 S Longitude 155-27.0 W
1200 Latitude 16-07.0 S Longitude 155-28.8 W
2000 Latitude 17-50.0 S Longitude 155-17.1 W
Miles 235.7 Course 161(T) Speed 9.6 Fuel 3229

SIXTH THIRD DAY
November 7, 1942.

Surface patrol enroute point Bud.

200 - Decoded desp. tech 061315 (Subs four two IR four seven)
ordering SPARISH to r-part present posit in not to
acknowledge receipt of Subs four two NRS thirty three, thirty
four and forty. Transmitted SPARISH 001622 with information as ordered.

-32-

— page 172 —
3-E-C-R-E-T
November 9, 1942. (Cont'd).

Fesit: 0800 Latitude 20-38.5 S Longitude 155-12.3 E
1200 L.titude 21-29.0 S Longitude 155-50.0 E
2000 Latitude 22-57.3 S Longitude 15-42.5 E
Miles 326.1 course 107(T) Speed 10.7 Fuel

SIXTY FOURTH DAY
November 10, 1942.

Surface patrol contact point Bud.

0529 - Submerged for trim.

0549 - Surface and proceed to point Bud.

1347 - Arrived point Bud and submerged on course 227(T).

1923 - Surface and proceed to point Van.

2213 - Not being sure the target was a depth charge, advising CTF
Forty Two of our ETA point Bud, had been received (since
they were addressed to ConsubPacFor), transited
TERRIFISH 101113 to CTF Forty Two with information
relative arrival Caloundra Head.

2234 - Sight loom of Kortvon light and proceeded on requisite
course enroute Kortvon Bay.

Posit: 0800 Latitude 24-51.5 S Longitude 154-50.0 E
1200 L.titude 25-11.5 S Longitude 154-59.0 E
2000 L.titude 26-10.0 S Longitude 154-50.5 E
Miles 255.4 Course 100.5(T) Speed 13.0 Fuel 1500

-33-

— page 176 —
3-3-CR-2-T
2. 7. LTER:
October 17 - November 11 - Zarnuto Manila to Brisbane, Queensland.

From Manila to Celebes Sea, sky was mainly clear, with occasional squalls. Wind 2 to 6 knots from southwest. Visibility fair. Seas still at front southwest. ...V-rage barometer 29:70. ...V-rage temperature 65°F.

In the Celebes Sea the wind and sea shifted to southeast and southeast. From Mindanao to Vitiaz strait sky was clear, sea calm, and wind 2 to 6 knots from the southwest. ...V-rage barometer 29:67. ...V-rage temperature 70°F.

In Vitiaz strait to Rossel Island, sky clearly overcast, with frequent showers. Visibility poor. Wind 4 to 6 knots from southeast. Sea mainly calm with occasional squalls. Seas fine south. From Rossel Island to Brisbane sky was mainly clear. Wind 10 to 15 knots from southeast. ...V-rage barometer 29:67. ...V-rage temperature 79°F.

— page 177 —
3. TIDAL INFORMATION:

Transcribed 1 knot southerly at between Long Island and Toloika Island, which changed to 1 knot westerly set when west of Rook Island.

-1-

— page 178 —
5-2-CR-3-T
U.S.S. ST. PAUL
4. EVACUATION LISTS:
No unusual navi-tional aids were sighted and no
navi-tional lights sighted except those burning on Australian
coast.

-1-

— page 179 —
3-3-C-R-T-U.S.S.STRIFFISH

5. SHIPS SIGNED:
   - 1942:
     - USS.S.TURCO in latitude 29-04 S; longitude 112-57 E, on southerly course, distant 5 miles. Reconstitution signals exchanged.

   - 1942:
     - USS.S.TURCO on patrol in latitude 16-12.5 S, on westerly course, distant 1 mile. Hull down, no radar out of sight before any det.ails could be discerned.

   - 1942:
     - USS.S.SURF on patrol in latitude 16-20.5 S, bearing 305(T), southerly course, at estimated speed of 12 knots, no range 3 miles. The submarine is not submerged about 3 minutes later. Sirens are positive means of identification available, clear of the full sea.

September 17, 1942:

   - 1942:
     - Sailboat, a 3-master, in active condition, on patrol to Lima Island, in latitude 45-1.5 S; longitude 112-1.5 W. Sighted 3 miles off the coast of Peru, 400 yards. Sighting 3(T) on southerly course.

   - 1942:
     - Sailboat (3) in vicinity of Cape Island on southerly course. Passed out of range half down. No det.ails distant missed.

September 15, 1942:

   - 1942:
     - Sailboat (3) in vicinity of Lima Island, on southerly course. Sighted 3 miles off the coast of Peru, 400 yards. Sighting 3(T) on southerly course.

   - 1942:
     - Sailboat (3) in vicinity of Lima Island, on southerly course. Sighted 3 miles off the coast of Peru, 400 yards. Sighting 3(T) on southerly course.

September 21, 1942:

   - 1942:
     - Native boat off Peru Island, on southerly course.

-1-

— page 180 —
5. SHIPS SIGHTED:

September 22, 1942:

0542 - 1823 - Three native sailing vintas 2 - 5 miles off
Hantibug Point, Zamboanga Peninsula, two on southerly
courses, one on northerly course. Investigated 2
from range 500-1000 yards, nothing suspicious noted.

September 23, 1942:

1911 - Sailboat in position latitude 10-40.3 N, longitude
121-40 E, bearing 024(T), range 5000 yards on northerly
course, agreed to be native craft enroute Dalipo
Point.

September 24, 1942:

0204 - Converted minelayer bearing 004(T) distant about 9
miles standing out of 40 East Pass on southerly course.
attacked with three torpedoes in latitude 11-36.3 N,
longitude 121-07 E at 0603. Cannot find silhouette
resembling this ship.
Description: Motor vessel of 3000 tons, 35C feet long,
100 foot m.sthead height with two stick and one twin
support mast. Painted gray, no camouflage. Cutter
type bow. 4" or 5" gun mounted in bows. Formast just
abaft gun, long well deck, than twin support mast with
cargo booms. Bridge island with fairly low single
steak. Mainmast just aft of bridge island. The deck
aft of mainmast was long, low and sloping and carried
4 mine tracks, on which were cylindrical objects,
eithcr mines or depth charges. There appeared to be a
Y gun just aft of well deck. Japanese naval ensign
flown from aft.aft after end of bridge island. Gun
was manned and about 3-9 Japs in white shorts and
shirts wore seen on bridge.

September 22, 1942:

0349 - Sailboat or small subchaser in 40 East Pass near
Panacan Islands, latitude 12-46.0 N, longitude 120-
44 E, distant 5000 yards on southwesterly course. No
details distinguished. Fair moonlight. Submerged to
avoid detection, sound could not hear gropellers and
could not sight thru periscope. Probably sailboat.

September 25, 1942:

1258 - Ship bearing 114(T), distant 6000 yards, course 180
speed 15 knots, (200 RPM). Subchaser of TQTOJRA.
class. -2-

— page 181 —
5. SHIPS SIGHTED:
September 23, 1942 (Cont'd):
Latitude 15-55.0 N, longitude 119-44.5 E, closest range 6000 yards.

October 3, 1942:
0919 - Two cargo ships in position latitude 19-59.7 N, longitude 119-57.9 E, bearing 051(T), range 14000, angle on bow 70.5, zigzagging on base course of 150(T), at 13-14 knots. Ships were in column, distance about 500 yards. First ship similar to KOMU MARU of about 3500 tons, length 350 feet. Three island type with two stick masts (estimated height 90 feet) and single tall midship deck. Appeared to be painted dark gray or black. Second ship larger, about 5000 tons, similar S.S.TITAN MARU. Three island type, length 400 feet, two stick masts fitted with cargo booms, (estimated height 100 feet), low midship superstructure with single tall stack. Gun mounted on poop deck. Could not close range beyond 6000-7000 yards.

1556 - Passenger ship in position latitude 14-35.8 N, longitude 119-54.2 E, bearing 211(T), distant 13 miles on course 330(T) at speed 10-12 knots. Unable close range below 10000 yards. Only details describable were 2 stick masts, single tall stack and full superstructure. Surface at sunset and unsuccessfully attempted to overtake.

October 4, 1942:
0943 - Small steamer of Philippine interior-island type (80-100 tons) in latitude 16-19 N, longitude 119-41.2, bearing 150(T), distant 6 miles on northerly course at speed 8 knots. Small gun mounted in bow and Japanese flag painted on sides. Decided not to disclose presence by gun attack since I felt that the ship might be patrolling in advance of more valuable enemy traffic.

October 7, 1942:
0540 - Patrol ship in latitude 14-16.3 N, longitude 120-18.4 E, apparently on sweep or listening patrol between Luzon Point and Fuego Point. About 300 tons, 150 feet long, 2 stick masts, with bridge island slightly aft of midships. No gun noted.

-3-

— page 182 —
3-2-C-R-T-U.S.S. GERRIISH
October 7, 1942 (Cont'd):
Did not attack since presence this patrol might indicate traffic about to move from Manila.

October 9-10, 1942:
Convoy consisting of 3 cargo ships escorted by 1 NASHI class destroyer. Narrative contains details of sightings, tracking, and attack. Cargo ships: 1 similar OMI H.M.R.U of 3500 tons, length 350 feet, masthead height 90 feet, straight bow, two stick masts, walls forward and aft, midship island with st.ack, and counter star. Rainted dull gray and no camouflage note. Small gun mounted after. Second in column of 3 AKS.
1 similar AFRIC. H.M.R.U of 9000 tons, length 450 feet, masthead height 100 feet. Two stick masts, straight bow, counter star. Cargo walls forward and aft with cargo booms rigged over walls. Midship island with single t.ll stack separate from bridge. Gun mounted aft. Gray paint job with catcher rust streaks or reddish camouflage. Round bow. First in column of 3 AKS.
1 similar TOROS H.M.R.U of 7000 tons, length 450 feet, masthead height 100 feet. Straight bow, counter star, cargo walls forward and aft of midship island superstructure. Single t.ll stack wall separate from bridge. Gun mounted aft. Last in column of 3 AKS. ...attacked this ship with 3 torpedoes in latitude 15-27.5 N, longitude 117-07.5 E.

October 11, 1942:
0546 - Same patrol ship that was sighted at 0540 October 7. Latitude 14-25 N, longitude 120-16.5 E. Unbolt to close for attack. Ship on southerly course entered Manila Bay thru north channel.

October 16, 1942:
1859 - Outline of small destroyer or subchaser in latitude 14-15.6 N, longitude 120-14.7 E on southwestly course at speed 1-15 knots. Beating at sighting 350(T), distance about 5000 yards to 6000 yards. Started swing towards, made tubes ready and lowered sound heads, but had passed at range of about 4000 yards, apparently without seeing us, and disappeared about 10 minutes later, on heading for Fortune Island. No details discernible and no attack possible.

-4-

— page 183 —
5. SHIPS FIGHTED:

October 24, 1942:

0821 - Cargo ship in latitude 04-33.8 N, longitude 127-58.2 E, near 193 (T), distant 12 miles on northwest by course at speed 12-1 knots, angle on bow at sighting estimated 45 S. Unsuccessfully attacked with 3 torpedoes in latitude 04-46 N, longitude 128-00.5 E. Slight to TOTITU LIRU. ...about 3500 tons, length 300 feet, maximum height 90 feet. Raked stern, two stick masts, well forward aft of midship island, single rudder height stack, and counter stern. Gun muzzles over forward cargo well, gun mounted on poop deck and a. gun mounted at top superstructure deck aft stack. Displaced a white yonant with blue circle from peak of foremast. Brownish red and gray camouflage paint on hull. ...after attack, ship increased speed, commenced weaving and headed in general direction of Davao Gulf.

October 27, 1942:

1604 - Cargo ship in latitude 1-02 S, longitude 140-39.4 E escorted by one destroyer of INNEKIZ class. Det. list of sighting in narrative. Cargo ship similar to SHINU LIRU of about 6500 tons, 700 long, 100 feet masts, height 50 feet. ...attack bow, masts, poop, midship island with fairly low stack (no smoke), mast and goal post. Well decks forward and aft. Either rust streaks or camouflage paint forward, gray aft.

-5-

— page 184 —
6. DESCRIPTION OF AIRCRAFT SIGNIFIED:

September 11, 1942:

0703 - PBY patrolling Restricted Bombing Line at entrance to North Gulf. Reconnaissance signals exchanged.

September 12, 1942:

0809 - PBY in latitude 18-38.0 S, longitude 114-37 E, bearing 100 (T), range about 12 miles on northerly course. SPARISH apparently not sighted by plane.

October 20, 1942:

2307 - Exhaust or lights of plane in position 13 miles NW of Bonao. No apparently on course NW or E, at altitude of about 2000 feet, distant about 3 miles. SPARISH apparently not sighted.

October 2-19, 1942:

0640 - Sighted flashes of aluminum colored plane flying in and out of sun, in latitude 04-46 N, longitude 123-03 E. Altitude 2000-3000 feet, range about 3-4 miles. Not in sight long enough for detailed identification. Later bombed by this plane after attack on cargo ship. Possible explanation of planes presence in this locality is fact that we used our radio transmitter from 0220-0325 this date.

— page 185 —
7. PARTICULARS OF ATTACKS
September 24, 1942.
Location: Latitude 11-32.3 N; Longitude 121-07.0 E.
(Cuyo East Pass).

Type target: Converted minelayer (2000 - 3000 tons).

No. Torpedoes Fired:
Firing Interval: 3
Firing Range: 0 - 12 - 10
Torpedo Run: 850 - 900 - 950 (1100 by TDC)
Point of Aim: 950 - 1000 - 1050 (1150 by TDC)
L.O.T. - 50 feet forward low - 80 feet aft stern
Track Angles: 117 port - 123 port - 124 port
Gyro Angles: 20 left - 29 left - 32 left
(Stern tubes)
Depth Settings:
Est. Enemy Course: 14 feet - 6 feet - 10 feet
Est. Enemy Speed: 157(T)
Own Course: 14.5 knots (9.5 by TDC) (200 RPL)
Own Speed: 06(T) - 06(T) - 06(T)
Own Depth: 2.5 knots
Method of Attack: Daylight Submerged watching target during firing (White light method on T.D.C.
Applied by shifting point of aim with periscope. First torpedo aimed between forward and stack (10T); second 30 feet forward of bow; third 80 feet aft of stern.

TORP. NO. Z.T. FIRE DATE EXPLOSION OBSERVATION
#1 06-03-00 0-47 Hit just aft of stack.
#2 06-03-12
#3 06-03-22

Sound reported all torpedoes ran hot. Heard one expended torpedo explode at 06-09-12. Sighted target at 0204 and ran ahead until 0512 when submerged for attack. Target weaving (17 minutes before sunrise) fired three torpedoes, and observed second torpedo fired to hit. Wake of first torpedo not sighted, "Third torpedo wake, under observation for only a few seconds, appeared to be heading astern of target. According to plot analysis, first and second torpedoes should have hit. First torpedo probably set too deep (14 feet) for this type ship.

— page 186 —
7. PARTICULARS OF ATTACK:
October 9, 1942.

Location: Latitude 15-26.7 N; Longitude 117-07.5 E.
(50 miles off west coast Luzon)

Type Target: Cargo Ship (7000 tons) Similar "LYONS IARU".

No. Torpedoes Fired: 3
Firing Interval: 0 - 12 - 14
Firing Range: 2180 - 2170 - 2170 (TDC)
Torpedo Fun: 2600 (TDC) - 3000 (Time torpedo ran)

Point of Aim: KOT - 200 feet forward bow - 100 feet aft stern.
Track Angles: 117 port - 120 port - 117 port
Gyro Angles: 6 left - 9 left (Bow tubes)
Depth Settings: 351(T)
Est. Enemy Course: 7.5
Est. Enemy Speed: 060(T)
Own Course: 2.5 - 4.0
Own Depth: 60 - 70 feet.
Method of Attack: Daylight submerged watching target during firing (White light method on TDC)
Spread: Applied by shifting point of aim with periscope. First torpedo aimed at stock (KOT); second aimed at ship length (200 feet) ahead of bow; third aimed at ship length (100 feet) aft of stern.

| TORP. NO. | Z.T. FIRED |
|||
| 1        | 06-4-6-00 |
| 2        | 06-4-6-12 |
| 3        | 06-4-6-26 |

| TITLES | EXPLOSION | OBSERVATION |
||||
| 06-4-8-14 |           |             |
| 06-5-1-35 |           |             |
| 06-4-8-48 |           |             |

*Periscope dipped at time of explosions 1 and 3 torpedoes. Periscope exposed at 0649 and observed clouds of smoke issuing from stern of target which appeared to be settling slowly. Sound reported propellers had stopped. #2 torpedo exploded 5 minutes 25 seconds after firing probably upon completion of its run. Although periscope was raised at this time, no water surface commotion was observed. Post-firing analysis indicates that first and third torpedoes hit while the second torpedo missed and apparently exploded at the end of its run. First all torpedoes ran hot. After the enemy's change of course this approach became very haphazard and degenerated into shooting at what was left from the range at which we happened to be.

— page 187 —
7. PARTICULARS OF ATTACKS:
October 9, 1942. (Cont'd):

It was unfortunate that the convoy picked the crucial moment to change course especially a-ter we had been tracking it all night. Hind sights seems to indicate that even with the rough seas prevailing, more success could have been attained had the night surface attacks been attempted.

October 24, 1942:

Location. Latitude 04-46 N; Longitude 128-00.5 E.

Type Target: Cargo Ship (3000 - 4000 tons).

No. Torpedoes Fired: 3
Firing Interval: 0 - 12 - 12
Firing Range: 2600 - 2650 - 2650
Torpedo Run: 2900 - 2900 - 2950
Point of Aim: MOT - 60 feet forward bow -
Track Angles: 60 feet aft stern.
Gyro Angles: 117 S - 120 S
Depth Setting: (bow tubes)
Est. Enemy Course: 6 feet - 6 feet - 6 feet
Est. Enemy Speed: 000(T)
Own Course: 13 knots (174 RPM by sound)
Own Speed: 293(T)
Own Depth: 3 knots
Method of Attack: 64-66 feet
Daylight submerged watching target during firing. (White light method on TDC)
Squad: Applied by shifting point of aim with periscope. First torpedo fired at stack, second aimed 1/6 ship length (about 60 feet) ahead of bow and third 1/6 ship length aft of stern.

| TORP. NO. | Z.M. FIRID | TITRE EXPLOSION | OBSERVATION |
|||||
| 1        | 09-10-55  | *09-10-48     | No hit      |
| 2        | 09-11-19  | *09-17-57     | No hit      |
| 3        | 09-11-19  | *09-18-10     | No hit      |

*Expended torpedoes exploding at end of run. Sound reported all torpedoes ran hot. Although approach was made at high speed, 4 complete set-ups were put into TDC, and the solution looked good. Post firing analysis indicated faulty ranges.

— page 188 —
7. PARTICULARS OF ATTACKS:

October 24, 1942 (Cont'd).

Did not use echo-ranging because (1) Though I had the dope sufficiently accurate, (2) Poor results with echo-ranging in previous patrols due operators lack of practice, (3) echo-ranging might scare away the target. Target was probably 600-700 yards closer and making about 9 knots instead of 13. Still can't explain the 174 RPM turn count.

— page 189 —
8. ENEMY A/S: [SURVEYED: 1942]

October 7, 1942:

Off Corregidor. At periscope depth, received two aircraft bombs, from unseen aircraft. Had been maintaining continuous periscope watch in perfect periscope water, and had just completed periscope search for aircraft. The plane must have been very high.

October 9, 1942:

After attack or last ship of three ship convoy, escorting destroyer returned at high speed (220 RPH) and apparently either sighted our periscope or impulse bubble (probably periscope, since it was about 8 feet out) and dropped 3 charges 6 minutes after firing of torpedoes. Estimated distance 800-900 yards. Two minutes later, 3 more charges fairly close, and one minute later 1 charge quite distant. Destroyer employed the slow and listen search and did not ping. [ANENUCRING W.S. at 190 RPH.] After first barrage, went deep and ran silent. DD remained in vicinity for about 1 hour. Sound conditions not to good.

October 24, 1942:

Six minutes after firing at unescorted cargo ship while at periscope depth had 2 aircraft bombs explode some distance away. Flashes of the plane had been observed prior attack. Flare probably in vicinity because of our use of radio transmitter 5 hours prior attack.

October 27, 1942:

Sighted on surface by an escorting destroyer, probably due to smoke caused by our starting main engines. Tried to clear by running into setting sun but forced to submerge when destroyer started to overhaul us rapidly. Stayed at periscope depth and sighted destroyer at range 6000 yards. Very peculiar hazy condition around horizon and flat calm. Destroyer making 240 RPM, angle on bow 30 port. A few minutes later, the DD apparently sighted our diving slick and headed for it, dropping 3 charges at range of 2000 yards. Angle on bow about 10 S, so went deep. Second barrage of 3 charges dropped 12 minutes after first, exploded about 800 yards from us. Ran silent at 200 feet and maneuvered to keep destroyer astern. Destroyer did not ping, but maneuvered at various speeds. Charges were dropped while making 240 RPM.

— page 192 —
5-0-C-R-2-T U.S.S. SPIRIT
10. RULES FOR LOGGING DATA:
    EXCLUSIVE: No noisiness and reduced capacity of the drain pump under heavy head pressure are apparently inherent, some means besides a bucket brigade, must be provided to get the water out the after engine room (and away from the main motors) while endeavoring to run silent at deep depths. A cross-connection capability of the air pump to discharge into the forward sanitary tank is not likely the present unclassified factory condition.

EXCEPTION: No. 1. The list of crew members is excellent, due principally to a self-catering crew of the air-conditioning, and good food. One or two of the "cell towers" are showing the strain of all months operations and should be "live" if the crew is not perfect. Relieves have been tried and are in use. During the later part of the cruise, lookouts tend to become a little stable, especially since nothing had been hit by torpedoes. The more of the officers and crew is excellent and can be kept that way by retaining more hits in the ships.

LOGISTICS DATA:
Lent of patrol: 65 days
Total hits: 1001
Hours sunk: 736
Total fuel: 102235 gallons
Total load: 2630 gallons
Fuel consumption: 10.2 gallons per mile
Total consumption: 0.23 gallons per mile

-2-

— page 194 —
44164 FILMED
TASK FORCE FORTY-TWO
Care of Fleet Post Office,
San Francisco, California,
November 18, 1942.

CONFIDENTIAL
The Commander Task Force Forty-two.
The Commander-in-Chief, United States Fleet.
The Commander South Pacific Force.

Subject: U.S.S. SEARFISH - Sixth War Patrol; Comment On.

Enclosure: (A) Copy of subject report.

1. Enclosure (A) is forwarded herewith.

2. The sixth war patrol of SPEARFISH covered a period of sixty-five days, twenty-two of which were spent in the assigned area off the west coast of Luzon and Manila Bay approaches. The remainder of the time was devoted to passage enroute to and from the area covering a total distance of more than ten thousand miles. Three of the twenty-two days on station were spent in riding out a typhoon.

3. Three torpedo attacks were made during the patrol, two in the assigned area and one while returning to base. The first two attacks were made at or near sunrise following skillful trailing during the preceding night. The evidence indicates that one 3,000-ton minelayer was sunk and one 7,000-ton cargo vessel was damaged as a result of these attacks. The third attack was unsuccessful.

4. The firing of torpedo spreads must not be based upon guesswork. Such guesswork not only is amateurish procedure, but usually results in a wasteful expenditure of torpedoes which we can ill afford. Spreads should be fired merely to insure hitting. They should cover only the loci of target limits within reasonable estimates of error in target length, course, speed, and range. The number of torpedoes in the spread should be based upon spread requirements plus destruction requirements. Obviously spread values cannot be calculated in the few moments available just before firing. They, therefore, must be based upon previously calculated tables, curves or graphs. For simplicity and accuracy, the Voge speed-spread diagram has much in its favor over other methods so far devised and its use is recommended, particularly for those vessels equipped with the Marks 2 and 3 torpedo data computers. Serious study of this subject is urged upon all submarine officers.

-1-

CONFIDENTIAL

— page 195 —
5. Enemy destroyers and other large anti-submarine vessels are valuable targets. Offensive action against them should be taken whenever conditions are favorable. While this is more of a sporting proposition than attacks on other type ships, the risk should be accepted.

6. It is hoped that the advent of the directional radar in submarines not only will "Make life pleasant during nights of zero visibility" as stated by the Commanding officer, but will encourage and will improve the quality of night surface attack.

7. Material:
   - The Task Force Commander does not concur with the remarks made by the Commanding Officer regarding the value of the SD radar. This instrument has been found to be of great value and assistance on vessels which have painstakingly tried to maintain the equipment. Until such time as the availability of specially-trained radar maintenance men becomes available to submarines, it is incumbent upon every officer commanding officer to obtain as much training for radar maintenance as tenders and bases can afford.

8. SPEARFISH refit will be accomplished by FUL-

9. The SPEARFISH is credited with the following damage to the enemy:
   - Sunk ...... One 3,000-ton minelayer.
   - Damaged ...... One 7,000-ton cargo vessel of the LYONS MARU Class.

R. W. CHRISTIE
16
CLASSIFICATION: This unit was transferred to the
CHANGED TO: C.O.F.
AUTHORITY: F.O.S.
DATE: 12/31/42

DISTRIBUTION:
VCNO, Cincpac, Cinclant,
Comsopac, Comsowespac,
Comsubpac, Comsublant,
Comsubsowespac, CSS 2,8,10,
Each SS of TF42 - not to be taken to sea (BURN)
CTF42 Patrol Summary File,
CSD 21, Cominch (direct).

— page 196 —
16-3(11)
Serial 001030

SOUTH PACIFIC FORCE
OF THE UNITED STATES PACIFIC FLEET
HEADQUARTERS OF THE COMMANDER

DEC 19 1942

FIRST ENDORSEMENT TO:
Comdr. T.F. 42
1tr. TF42/16-3, Serial
0596 of November 18, 1942.

From: The Commander South Pacific Area and South Pacific Force.
To: The Commander-in-Chief, United States Fleet.

Subject: U.S.S.PEARFISH - Sixth War Patrol; Comment on.

1. Forwarded. The remarks of the Task Force Commander in paragraph 4 concerning the necessity for a thorough understanding of the methods of deter. mination and application of torpedo spreads are heartily concurred in. This ties in directly with the question of training submarines between patrols. It is noted that SPEARFISH had no training period during the refit and the benefits of the practice approach conducted the day of departure on patrol were practically nil because of poor visibility and casualty to periscope limit switch. It must be said in passing that 10,000 miles is a long distance to steam in order to obtain three (3) torpedo hits.

2. In the context on October 27th, the commanding officer might very well have crippled the escort destroyer which pursued him and then resumed his attempt to gain position ahead of the cargo ship. The Task Force Commander's comments about taking offensive action against destroyers and other large anti-submarine vessels are endorsed.

3. The statement of the commanding officer under "Health and Morale" that some of the "old timers" are showing the strain of eleven (11) months' operations is noted with concern. Some system of progressively relieving submarine crews should be inaugurated. It is noted that this is the SPEARFISH's sixth (6) war patrol in a period of eleven (11) months which indicates excellent material condition. This is borne out by the absence of major defects on subject patrol.

Copies to:
VCHO, Cinopae, Cinolant
Consowespace, Consubpae,
Consublant, Consubsowespace,
CBS 2, C.O. SPEARFISH

W. F. HALSEY

— page 198 —
1914-15
SS190/A16-3
Serial C-01
CONFIDENTIAL
From: The Commanding Officer.
To: The Commander Task Force SEVEN.
Subject: U.S.S. SPARFISH (SS190) - War Patrol
- Report of:
Enclosure: (A) Report of War Patrol, period December 2, 1942 to January 25, 1943.

1. Enclosure (A) is forwarded herewith.

FILMED
46048
ENCLOSURE (A)

— page 199 —
1. NARRATIVE:
U.S.S. SPARFISH arrived Brisbane, Australia, on November 11, 1942, upon completion of sixth patrol. During period November 12 - 26, refit was accomplished by relief crew, T.C.S. FULTON. From November 26 to December 2, refit was completed by regular crew. Mark X-3 torpedoes were substituted for Mark XIV-1. On December 2, 1942, departed on current patrol.

DECEMBER 2, 1942: -
1400 L - Underway in accordance with Commander Task Force FORTY-TWO operation order S60-42 of December 1, 1942, which directed this ship to wage unrestricted warfare in patrol area E(S), and to depart area January 11, 1943.

1600 L - Calibrated magnetic compass. Completed calibration at 1700 L.

2210 L - Passed through FORTY-VIEW, set speed 15 knots and requisition courses to follow route prescribed in operation order.

2250 L - Secured 3 main engine due-to knock and went ahead 14 knots while investigating damage.

2000 L - Posit: Latitude 26-50.0 S Longitude 153-13.2 W. D.C.M.B.R. 3, 1942: -

Proceeding assigned area on surface.

0510 L - Submerged to obtain trim and test for tightness. Two hours spent in correcting leaks and warps. Ascertained damage to #2 main engine caused by shearing of brass (instead of steel) cutter pin in connecting rod bearing bolt. Since the damage to one of the two charging engines involved a scored connecting rod journal, two wiped main bearings and a possible scored crankshaft, decided remain submerged until full extent of damage could be ascertained, in case necessity for return to base arose. Inspected crankcases all main engines. At 1830 L, determined engine could be repaired by ship's force in two days, so decided to continue enroute area while repairing engine.

Posit: C600 L Latitude 26-50.0 S Longitude 153-13.2 W. 1200 L Latitude 25-56.15 S Longitude 154-56.0 W. 2000 L Latitude 25-47.5 S Longitude 155-01.5 W. Miles Steamed 195.2 Fuel Used 2357

— page 200 —
1942:
Surface patrol enroute: area. Speed 12 knots increasing to 14.5 knots upon completion of charge.

Posit: 0800 L Latitude 23-03.0 S Longitude 154-45.0 E
1200 L Latitude 21-53.8 S Longitude 154-41.0 E
2000 L Latitude 20-08.0 S Longitude 155-11.0 E
Miles Steamed - 245.7 Fuel Used - 3129

DECEMBER 5, 1942:
Surface patrol enroute area. At dusk exercised gun crew, firing 5 rounds. Tested .30 en 1.50 caliber machine guns.

2103 L - While conducting practice night surface approach, having shifted to batteries and lowered sound heads, sound reported herring 10-12 echo ranges on 1600 yard scale. Approximately 3 minutes later felt jar similar to that experienced when torpedo is fired from this ship. Could hear no screws nor was anything sighted. May have been noises from a fish with which we may have collided, although sound operator is well experienced.

Posit: 0800 L Latitude 17-22.3 S Longitude 155-26-2 E
1200 L Latitude 16-20.0 S Longitude 155-35.6 E
2000 L Latitude 14-40.3 S Longitude 155-46.0 E
Miles Steamed - 333.6 Fuel Used - 3518

DECEMBER 6, 1942:
Surface patrol enroute area.

0330 L - Completed repairs to #2 main engine.

0745 L - Crossed Latitude 12-00 S.

0608 L - Submerged patrol enroute area, to give engineering force, who have been working in shifts since night of December 2, a rest prior entering combat zone.

1928 L - Surfaced.

2355 L - No. 2 main engine again cut of commission due to wiped main bearings.

Posit: 0800 L Latitude 11-57.5 S Longitude 156-09.2 E
1200 L Latitude 11-49.5 S Longitude 156-10.1 E
2000 L Latitude 11-24.2 S Longitude 156-19.0 E
Miles Steamed - 200.5 Fuel Used - 3396

— page 201 —
1942:
- Surface and submerged patrol enroute area.
- Posit: 0800 L 1200 L 2000 L
- Miles Steamed - 152.1
- Surface and submerged patrol enroute area.
- Posit: 0800 L 1200 L 2000 L
- Miles Steamed - 178.4
- Surface and submerged patrol enroute area.
- Posit: 0800 L 1200 L 2000 L

— page 202 —
2100 L - Increased to maximum speed available (14.5 knots) to be in position for submerged patrol across track from TRUK to KAVLING.

Posit: 0300 L Latitude 01-13.2 S Longitude 153-50.0 E 1200 L Latitude 01-10.5 S Longitude 153-40.7 E 2000 L Latitude 01-05.0 S Longitude 153-13.3 E

Tiles Steared - 176.1 Fuel Used 2298

DICOM 11, 1942:
Surface and submerged patrol across area. Intermittent rain and poor visibility throughout day. No navigational fixes obtainable.

2050 L - All main engines in commission.

Posit: 0800 L Latitude 01-43.0 Longitude 151-21.5 E 1200 L Latitude 01-41.3 Longitude 151-12.3 E 2000 L Latitude 01-40.4 Longitude 150-51.8 E

Miles Steamed - 152.0 Fuel Used - 1750

DICOM 12, 1942:
Surface patrol across area, proceeding on westerly course about 8 - 9 miles north of northern boundary SARCO's area. Rain and mist.

0555 L - Sighted ship (Contact No. 1) bearing 220(T), range 5000 yards on N.W. course at speed 5-6 knots, in position Latitude 01-53.2 E, Longitude 148-51.0 E. Flowed and observed ship, which at first was thought to be SARCO. After few minutes observation, identified ship as small patrol vessel of about 350-400 tons. Passed astern of patrol to see if he were leading a convoy but sighted no other ships.

0605 L - Submerged when patrol ship reversed course and headed for us. Sighted nothing through periscope, sound could not hear screws.

0625 L - Sighted patrol ship bearing 240(T), range about 8000 yards on course 135(T) at slow speed (5-6 knots).

- 4 -

ENCLOSURE (A)

— page 203 —
1930 L - Surtaced and proceeded south to area along track about 10 miles west of western boundary SARCO's area. Clear with good visibility.

Posit: 600 L Latitude 01-50.5 S Longitude 146-55.4 E
1200 L Latitude 01-46.5 S Longitude 146-47.8 E
2000 L Latitude 02-02.8 S Longitude 146-43.2 E
Miles Steamed - 172.0 Fuel Used - 1967

DSCMBR 13, 1942:
Surface patrol enroute area.

0030 L - Number 2 main engine again out of commission due to wiped main bearing.

0200 L - Entered area about 10 miles south of northern boundary and set course to patrol across traffic lanes reported by submarines previously patrolling this area.

0615 L - Submerged.

— page 205 —
1957 L - Surfaced and patrolled across traffic lanes. Pscu-
    liar hazy condition around horizon.

Posit: 0800 L Latitude 03-02.2 S Longitude 149-52.0 E
    1200 L Latitude 03-01.0 S Longitude 150-03.2 E
    2000 L Latitude 02-55.0 S Longitude 149-53.0 E
Miles Steamed - 66.8 Fuel Used - 467

DECEMBER 15, 1942: -
Surface patrol during night, submerged during day-
light, various courses crossing traffic lanes.
Intermittent rain during afternoon.
Nothing sighted. Upon surfacing, moved southeast
along traffic lane.

Posit: 0800 L Latitude 03-06.2 S Longitude 149-15.8 E
    1200 L Latitude 02-59.2 S Longitude 149-24.0 E
    2000 L Latitude 02-54.6 S Longitude 149-38.2 E
Miles Steamed - 75.8 Fuel Used - 490

DECEMBER 16, 1942: -
0025 L -

Intermittent heavy rain
decreased visibility to 500 yards.

0534 L - Submerged on easterly course for daylight patrol across
expected track of destroyers enroute RABAUL to KAVIEN.G.
Position doubtful.

0620 L - Changed course to 140(T) upon sighting smoke bearin-
140(T), range about 12 miles, in Latitude 03-18.1 S,
Longitude 150-37.6 E.

0640 L - Distinguished masts, indicating ship (Cohctact No. 5)
to be on course 290(T), speed 9 knots, angle on bow
about 40 P. At 0738 L, at range of 2500 yards, dis-
continued approach upon recognizing ship to be the
same hospital ship sighted December 14, 1942. Con-
tinued patrol to eastward across traffic lane from
RABAUL to KAVIEN.G.

1950 L - Surfaced and stood southeast to get in traffic lane
between PALAU ISLAND and RABAUL, dispatch information
(CTF-42 29-B) indicating transport movement probable
between those places.

-7- INCLOSURE (A)

— page 206 —
2018 L - Sighted outline of patrol ship (Contact No. 6) or DD in Latitude 03-40.3 S, Longitude 150-57.8 E, bearing 080(T), distant 7000 yards, on course 290(T), speed about 15 knots. Increased speed and attempted to get ahead for attack.

: 2043 L - Sighted hazy outline of small patrol ship or sub-chaser (Contact No. 7), details not distinguished, bearing 146(T), distant 4000 yards, in Latitude 03-42.4 S, Longitude 150-52.4 E, which disappeared almost immediately in mist prevalent to the southward. Continued attempt to overhaul first ship sighted. At 2103 L, determined no convoy to be astern, and at 2130 L, abandoned chase, the patrol ship or DD having disappeared on course 290(T). Minimum range reached about 6000 yards. Commenced patrol across this track.

: 2159 L - Sighted small shape, thought to be patrol ship or subchaser (Contact No. 8) (details not distinguished), bearing 285(T), distant about 5000 yards, angle on bow 80 S, and changed course to get ahead. At 2203 L, the ship sighted us and headed for us. Maneuvered to point stern toward and made after tubes ready. At 2208 L, distinguished ship to be motor torpedo boat (no masts, no stack, estimated 80 tons) in Latitude 03-42.8 S, Longitude 150-46.0 E, range about 3000 yards, coming at high speed down SPARFISH track. Decided it would take at least 4 torpedoes to have even a fair chance to hit, so submerged and rigged for depth charge. While passing 60 feet, sound reported what sounded like a blast of air going along starboard side and a little later, high speed light screws (no count obtainable) passing along port side. No depth charges were dropped. During the first 10 minutes after submerging, sound reported small explosions similar machine gun fire. The motor torpedo boat remained in vicinity, apparently stopping to listen every 5-10 minutes, until 2305 L when screws faded out on southerly bearing. Cleared area to northward and surfaced at 2335 L. Nothing in sight. Ran up and down moon while charging batteries.

Posit: 0800 L Latitude 03-23.6 S Longitude 150-40.0 E
    1200 L Latitude 03-24.9 S Longitude 150-49.2 E
    2000 L Latitude 03-39.7 S Longitude 150-58.6 E
Miles Steamed - 108.5
Fuel Used - 476

— page 207 —
0601 L - Submerged for patrol across traffic lanes between CAPE LAMBERT and VITU ISLANDS. No fix obtainable. Position approximate.

: 1958 L - Surfaced and stood northward to cross traffic lanes from PALAU to RABAUL. Visibility good.

: 2346 L - Sighted two ships (Contact No. 9) in Latitude 03-41.0 S, Longitude 150-43.2 E, bearing 225(T), range 7000 yards, on course 110(T), at speed 8-10 knots. Took up converging course and increased speed until ships identified as two subchasers in approximate column, then changed course to investigate track astern of these ships.

: Posit: 0800 L Latitude 04-01.8 S Longitude 150-34.2 E 1200 L Latitude 04-00.0 S Longitude 150-41.8 E 2000 L Latitude 03-58.2 S Longitude 150-51.2 E

: Miles Steamed - 87.7 Fuel Used - 600

DECEMBER 18, 1942:
Surface petrol on northerly and westerly courses investigating area astern of patrol ships. Nothing sighted.

: 0320 L - Sighted masthead lights of ship (Contact No. 10) in Latitude 03-35.8 S, Longitude 150-45.3 E, bearing 135(T), range about 16,000 yards, on course 290(T) at approximate speed 8-9 knots. Closed range to 3000 yards.

: 0353 L - Ship sighted carried normal running lights plus illuminated red crosses on bridge and on single stack as well as illuminated green stripe around hull. Two masts, single stack, full superstructure.

: 0556 L - Submerged for patrol across traffic lanes.

: 2000 L - Surfaced and patrolled along course 300(T), estimated reverse of track between PALAU and RABAUL. Moonlight visibility prevailing is too bright for surface attack, but our position is such that we may maneuver ahead of any ships sighted so as to get in position for either a dawn or a moonlight submerged approach.

— page 208 —
0800 L  Latitude 03-32.1 S  Longitude 150-57.8 E
: 1200 L  Latitude 03-33.3 S  Longitude 151-06.7 E
: 2000 L  Latitude 03-47.5 S  Longitude 150-55.7 E
Miles Steamed - 75.8  Fuel used - 307

DECEMBER 19, 1942:

Surface patrol along enemy traffic lane.

0043 L - Sighted smoke {Contact No. 11} in Latitude 03-30.4 S, Longitude 150-38.5 E, bearing 022(T), range about 18,000 yards, and headed for it.

0050 L - Determined smoke to be from one ship on southeasterly course at estimated speed of 20-25 knots. Attempted to get ahead at best speed. At 0155 L smoke had disappeared. At 0200 L abandoned chase. Ship never sighted.

0550 L - Submerged and patrolled across traffic lanes in enemy's estimated daylight area.

1446 L - Sighted smoke {Contact No. 12} bearing 060(T), in Latitude 03-26.0 S, Longitude 150-36.0 E, distant 10-12 miles, estimated course 330(T), at speed 13-14 knots. Unsuccessfully attempted close range. Ship not sighted.

2000 L - Surfaced and patrolled across traffic lanes, workin to northward.

POSIT: 0800 L  Latitude 03-32.8 S  Longitude 150-37.3 E
: 1200 L  Latitude 03-32.0 S  Longitude 150-31.6 E
: 2000 L  Latitude 03-22.0 S  Longitude 150-25.6 E
Miles Steamed - 62.6  Fuel used - 666

DECEMBER 20, 1942:

Surface patrol enroute enemy's dawn position south of LAMBAN BAY, speed 14-15 knots.

C133 L - Sighted subchaser {Contact No. 13} bearing 125(T), distant about 4000 yards, on northwesterly course at slow speed, in Latitude 03-28.5 S, Longitude 151-04 E. Attempted to evade on surface but subchaser apparently saw or heard us, increased speed and headed for us.

— page 209 —
0140 L - Submerged and rigged for depth charge. No depth charges dropped. Subchaser remained in vicinity until 0245 L, maneuvering at various speed and apparently stopping at intervals to listen.

: 0245 L - Sighted subchaser through periscope, range about 2000 yards on westerly course. Out of sight at 0250 L.

: 0315 L - Surfaced.

: 0529 L - Sighted SAM or similar subchaser (Contact No. 14) in Latitude 03-22.4 S, Longitude 151-02 E, bearing 150(T), range about 4000 yards on southwesterly course. Determined that subchaser was not escorting and at 0540 L submerged and patrolled across traffic lanes.

: 0932 L - Sighted AICHI type (97N SE) floatplane in Latitude 03-28 S, Longitude 150-59 E, bearing 340(T), range 5000 yards, altitude 1000 feet on approximate course 320(T).

: 1455 L - Sighted SAM or similar plane in Latitude 03-29.0 S, Longitude 150-57.0 E, bearing 340(T), range 6000 yards, altitude 1500 feet on southwesterly course.

: 2000 L - Surfaced and patrolled across traffic lanes.

Posit: 0600 L Latitude 03-25.0 S, Longitude 150-58.0 E, 1200 L Latitude 03-30.0 S, Longitude 150-50.5 E, 2000 L Latitude 03-37.5 S, Longitude 150-50.5 E

Kiles Steamed - 104 Fuel Used - 942

DECEMBER 21, 1942: -
Surface patrol across traffic lanes.

0255 L - Sighted smoke in Latitude 03-20.5 S, Longitude 150-43.2 E, bearing 258(T), range about 8000 yards. Shifted to all main engines and closed range. Identified as 2 destroyers escorting 1 unidentified ship (Contact No. 15), possibly a transport, zigzagging on base course 110(T) at speed 15 knots. Angle on bow of nearest DD about 60°P. With bright moonlight visibility prevailing, determined to get ahead for dawn submerged attack.

— page 210 —
0430 L - At range 6000 yards, when about 30 degrees on port bow of nearest destroyer, sighted 2 subchasers (Contact No. 16) in Latitude 03-35 S, Longitude 151-06.5 E, bearing 5 and 15 degrees on starboard bow, range about 4000 yards, on opposite parallel course (310 T). Altered course in attempt to run around subchasers, but either they or the near escort sighted us. Transport and far escort changed course to westward, while near destroyer and subchaser headed for us. At 0448 L, submerged to periscope depth and changed course to 180(T), to intercept transport should it zig back to its base course. Destroyer, tracked by sound, passed well astern of us and not sighted through periscope. Subchaser passed ahead and continued on northwesterly course. Shifted to #1 periscope and decreased depth to 52 feet to check on destroyer whose screws had faded out astern of us. Sighted nothing through periscope. Visibility decreased due to passing clouds. At 0515 L, while searching, heard depth charge explode about 1000 yards astern. Sound reported screws speeding up and closing. Still couldn't see DD through periscope. While going deep, received another depth charge, much closer. Destroyer remained in vicinity until 0615 L, during which time 2 more charges were dropped at estimated ranges of 300 and 500 yards.

0630 L - Periscope depth. Sighted AMAGIRI class destroyer bearing 275(T), distant 7000 yards, on southerly course, at speed of 15 knots. No other ships sighted.

1049 L - Sighted mast of subchaser or torpedo boat (Contact No. 17) in Latitude 03-13.8 S, Longitude 151-06.8 E, range 18,000 yards, on easterly course at speed 15 knots. Disappeared at 1110 L.

1438 L - Sighted subchaser (Contact No. 18) in Latitude 03-32.2 S, Longitude 150-58.5 E, range about 10,000 yards, on course 300(T) at speed 18 knots. Closed to 3000 yards to observe. Ship appeared to be about 200-300 tons, Diesel powered, with high speed screws, one low stack, one mast, gun forward, and depth charge rack aft. Very low in water. At 3000 yards range, subchaser headed directly for periscope. Went to 200 feet while subchaser passed close astern without changing speed and continued to westward.

Posit: 0800 L Latitude 03-26.2 S Longitude 151-04.8 E
1200 L Latitude 03-26.1 S Longitude 150-57.9 E
2000 L Latitude 03-37.8 S Longitude 150-47.2 E

Miles Steamed - 89.8 Fuel Used - 523

— page 211 —
0252 L - Sighted apparent puff of smoke bearing 318(T). Investigated area but sighted nothing.

: 0432 L - Sighted smoke (Contact No. 19) from 2 ships in Latitude 03-42 S, Longitude 150-23 E, bearing 352(T), range probably 25,000 yards, on easterly course at 15 knots. Unsuccessfully attempted to close range until dawn. Ships not sighted.

: 0602 L - Submerged for patrol across traffic lanes leading to CAPE LAMBERT.

: 1009 L - Sighted smoke, identified as patrol ship (Contact No. 20) of trawler type (length 100 feet, 200-300 tons) circling in position Latitude 03-53.5 S, Longitude 150-56.3 T. Observed trawler which maneuvered in tight circles for about 10 minutes, letting out puffs of heavy black smoke, and then steadied on a course for about 5 minutes, returning to original position to resume circling; speed about 10 knots. At 1048 L, trawler stopped smoking and cleared area on easterly course. Patrolled this vicinity during day but sighted nothing. It is possible that trawler was operating in conjunction with enemy submarine reported this area.

: 2215 L - Sighted smoke in Latitude 03-37.0 S, Longitude 150-45.5 E. Ran toward until identified as destroyer or CHIDORI class torpedo boat (Contact No. 21), on course 110(T) at speed 12 knots. Bright moonlight so got ahead for submerged attack. At 2333 L, with range about 8000 yards, angle on bow about 5-10 degrees starboard, submerged for attack and headed for target.

Posit: 0800 L Latitude 03-50.5 S Longitude 150-50.5 E
    1200 L Latitude 03-53.0 S Longitude 150-54.0 E
    2000 L Latitude 03-47.6 S Longitude 150-48.0 E
Miles Steamed - 99.5 Fuel Used - 795

— page 212 —
1942:
Submerged, conducting an enemy destroyer or torpedo boat. Nothing sighted through periscope, nor could sound near propellers. At 0015 L, sound minutes, dead ahead (own course 290(T)). Sighted nothing. At 0110 L and 0130 L, sound reported propeller noises lasting for 3-4 minutes on same bearing. At 0230 L, surfaced, nothing in sight.

0604 L - Submerged for day patrol.

1448 L - Sighted single mast of torpedo boat or subchaser (Contact No. 22) in Latitude 03-28.2 S, Longitude 151-01.8 E, which passed out of visible range on course 300(T), at estimated speed 15 knots. Closed that area but no other ships sighted.

1951 L - Surfaced.

Posit: 0800 L Latitude 03-42.8 S Longitude 150-54.6 E
1200 L Latitude 03-34.3 S Longitude 150-56.4 E
2000 L Latitude 03-30.8 S Longitude 150-52.2 E
Miles Steamed - 73.5' Fuel Used - 631

DECEMBER 24, 1942:
Patrolling across traffic lanes, visibility fair to poor with intermittent rains.

0023 L - Thro ugh rainstorm sighted CHIDORI torpedo boat or subchaser (Contact No. 23) in Latitude 03-32.8 S, Longitude 150-36.0 E, directly astern, range about 3000-4000 yards, course 110(T), slow speed. Lade after tubes ready, opened range and then changed to course for 50 port track stern tube shot.

0100 L - At estimated range 4000 yards, target increased speed and headed for us. Submerged and rigged for depth charge. No charges dropped. Torpedo boat remained in vicinity until C330 L. Did not use echo ranging but slowed or stopped occasionally to listen.

0345 L - Periscope depth. Heavy rain. Visibility zero.

0435 L - Surfaced in rain and charged batteries. Worked to northward to conduct submerged patrol off western end DJAUL ISLAND.

0553 L - Submerged.

— page 213 —
1801 L - Sighted what appeared to be puff of smoke in
Latitude 03-08 S, Longitude 150-40.3 E. Headed
toward, but not sighted again.

: 1950 L - Surfaced and patrolled south of passage between
TINGWON and NEW HANOVER ISLANDS.

Posit: 0800 L Latitude 03-18.1 S Longitude 150-33.7 E
1200 L Latitude 03-16.9 S Longitude 150-25.2 E
2000 L Latitude 03-13.7 S Longitude 150-13.0 E
Miles Steamed - 64.6 Fuel Used - 476

DJCUMBER 25, 1942:
Surface and submerged patrol across traffic lanes
south and southwest of NEW HANOVER. Heavy rain
during early morning.

: 1305 L - Sighted smoke in Latitude 03-02.0 S, Longitude
150-12.6 E, distant about 15-20 miles, and headed
for it.

: 1407 L - Identified masts of convoy (Contact No. 24), consisting of 4 AKs (similar LIMA MARU) escorted by a
CHIDORI class torpedo boat. Formation, in two
ragged columns about 1000 yards apart (distance
between ships of each column about 500 yards) with
torpedo boat on station about 500 yards ahead and
midway between the two columns, zigzagging
courses between 230(T) and 330(T) at speeds of 10
knots. Sea smooth but no planes observed, 18d approaching
on various courses at high speed to regain
position ahead of formation upon completion of each
zig. During approach, one zig was observed to last
5 minutes, while another lasted 16 minutes.

: 1502 L - When on firing course for 80 P track, zero gyro bow
shot, 2000 yards from track and about 5 minutes to
go for firing bearing, formation zigged from course
290(T) to 330(T). Had decided to fire 2 torpedoes
at each ship of nearest column, using longitudinal
spread and zero gyro, swinging ship as necessary to
obtain correct lead angle for second target, since
with Mk. X torpedoes, it had been determined that
the TDC could not be used to match gyros due to overload on clutch. During zig, the leading AK of near
column started to overlap rear AK of far column.

— page 214 —
1506-10L Fired 4 torpedoes on 110 port track at target offered by the 2 overlapping AKs which were in line of bearing, separated by 1000 yards, with leading ship of near column slowly passing rear ship of far column. Used longitudinal spread with 10-14-10 second firing intervals, zero gyro angles, and ranges about 2500 and 3500 yards. Depth settings 8-10-8-10 feet. Sound reported all torpedoes running normally. At completion of firing, targets were about one-half overlapped and one minute later about three-quarters overlapped. At this time, the torpedoes were heading for us, probably having seen our impulse bubble, which was much larger than normal. Targets had not altered course. At about 1508 L went deep and rigged for depth charge. At 1509:25 heard very loud torpedo explosion followed by ripping and tearing sounds. At 1510:39 heard second torpedo explosion followed by many light explosions. At 1511:50, three depth charges spaced 20 seconds apart and distant about 500 yards. Torpedo boat not pinging so changed course and ran silent. Loud crackling sounds and water disturbances from direction of torpedoed ships could be heard through hull for 15 minutes after firing. It is believed that one hit was obtained on each of the two AKs. Sound tracked one torpedo until it exploded, then picked up another torpedo and tracked it until it exploded, after which no torpedoes were heard running. Torpedo boat remained in vicinity for 30 minutes, maneuvering at various speeds, employing listening search. No further depth charges were dropped. Position of attack: Latitude 02-56.1 S, Longitude 149-55.2 E.

1610 L - Periscope depth, about 3 miles from firing position. Distinguished masts of two AKs and the one torpedo boat on course of 030(T), at range of 8 miles, apparently heading for NEW HANOVER. Could not locate two other AKs. Cleared area to southward to escape aircraft search.

1914 L - Sound reported echo-ranging, 6 second interval, 23-24 Kcs. Sighted mast and superstructure of torpedo boat (Contact No. 25) bearing 065(T), range 15,000 yards, on northeast course, estimated speed 8-10 knots, in Latitude 03-06.4 S, Longitude 150-07.7 E. Out of sight at 1930 L.

2010 L - Surfaced and patrolled across traffic lanes, working to southward.

— page 215 —
0800 L. Latitude 02-59.2 S. Longitude 149-47.1 E
: 1200 L. Latitude 02-55.4 S. Longitude 149-55.8 E
: 2000 L. Latitude 03-11.3 S. Longitude 150-00.8 E
: 78.2. Fuel Used - 461

DECEMBER 26, 1942:
Surface and submerged patrol across JAPAN-RABA'UL
traffic lanes. Weather hazy. Water surface flat
calm.

: 0800 L. Latitude 03-29.5 S. Longitude 150-08.5 E
: 1200 L. Latitude 03-25.6 S. Longitude 150-12.0 E
: 2000 L. Latitude 03-36.0 S. Longitude 150-24.3 E
: 105.6. Fuel Used - 616

DECEMBER 27, 1942:
Surface patrol across traffic lanes.

0010 L - Decoded CTF-42 NR 55-B relative shift of areas and
ordering SPJARFISH to area EASY (S.E.), east of
Longitude 151-00 E. Set requisite course.

0320 L - Sighted black object (Latitude 03-24.3 S, Longitude
150-42.2 E) which appeared to be small A/S patrol
(Contact No. 26), bearing north, distant about 3
miles. Only one bearing could be taken before
object was obscured by black clouds and no further
contact could be made.

0445 L - Sighted aircraft flare a great distance to the
northeast. This flare illuminated that area for
about 10 seconds.

0555 L - Submerged and continued northeastward to enter new
area, fix having shown a westerly set.

1600 L - Sighted AICHI type 97 N Sd floatplane in Latitude
03-41.3 S, Longitude 151-15.0 E, bearing 104(T),
distance about 2 miles at altitude 1000 feet, appar-
ently searching area.

2000 L - Surfaced and proceeded eastward.

2030 L -

— page 216 —
1942 - Cont'd
2245 L - Heavy intermittent rains set in.
2306 L - Sighted lights of ship (Contact No. 27) in Latitude 03-38.9 S, Longitude 151-46.0 E, bearing 096(T), distant 3-6 miles on northwesterly course. Investigated and determined ship to be hospital ship, carrying correct markings.
Posit: 0800 L Latitude 03-32.8 S Longitude 151-04.0 E 1200 L Latitude 03-36.5 S Longitude 151-05.0 E 2000 L Latitude 03-40.0 S Longitude 151-21.8 E
Miles steamed - 64.8 Fuel Used - 346

DECEMBER 28, 1942:-
Surface patrol enroute dawn position N.E. of WATOM ISLAND. Heavy intermittent rains and overcast sky reduced visibility to 1000-2000 yards. Position evading patrols as possible, visibility being in our favor. At 0400 L, visibility increased although a thick mist covered RABAUL area.

0450 L - Submerged in estimated position 6-8 miles N.E. of WATOM ISLAND.

0525 L - 3 searchlights vicinity RABAUL turned on for 5-10 seconds.

0541 L - Numerous searchlights vicinity RABAUL.

0619 L - Sky over RABAUL was red glow, although that vicinity still covered by low-hanging black clouds. Atmosphere around is very hazy and sea flat calm.

0629 L - Sound reported pinging bearing 353(T), on 22 Kcs., 10, 7, and 2 second intervals, hand keying. Sighted nothing.

0632 L - Sighted 3 small ships resembling trawlers distant about 2000 yards in line of bearing, about 2000 yards apart, on easterly course, Latitude 03-54 S, Longitude 152-14 E (Contact No. 28). Each ship seemed to take turns pinging. After investigating, maneuvered to avoid, since the formation seemed to be working south.

— page 217 —
0640 L - Heard pinging to S.E. and sighted two other ships (Contact No. 29), similar to above, in line on S.E. course, distant about 3 miles (Latitude 04-01 S, Longitude 152-18 E), each alternately pinging at 6-7 second intervals. Stood to westward and then northeast to get astern of pingers and cover traffic line from RABAUL to KAVIENG.

: 1248 L - Sighted masts of 4 torpedo boats (Contact No. 30) bearing 248(T) on northwesterly course, distant about 15,000 yards. These ships passed hull down, at high speed. (Latitude 03-55 S, Longitude 152-01 E).

: 1955 L - Surfaced and patrolled north and south across traffic lanes.

Posit: 0800 L - Latitude 03-58 S Longitude 152-15 E
Posit: 1200 L - Latitude 03-54 S Longitude 152-13 E
Posit: 2000 L - Latitude 03-45 S Longitude 151-52 E
Fuel Used - 497

DECEMBER 29, 1942:
Surface patrol across traffic lane from RABAUL to KAVIENG. Decided to submerge at dawn in position N.W. of WATOM ISLAND to evade A/S patrols. Overcast until moonrise when visibility improved. Rain clouds over RABAUL.

: 0523 L - Submerged. Position uncertain. Heavy rains and poor visibility, which continued intermittently throughout the day. Nc sign of air raid on RABAUL.

: 1300 L - Sighted AICHI type 97 N SE floatplane in Latitude 03-51 S, Longitude 151-50 E, bearing 242(T), distant about 4 miles, altitude 1000 feet, on northerly course.

: 1950 L - Surfaced and patrolled across traffic lanes.

Posit: 0800 L - Latitude 03-56 S Longitude 151-55 E
Posit: 1200 L - Latitude 03-52 S Longitude 152-03 E
Posit: 2000 L - Latitude 03-40 S Longitude 151-50 E
Fuel Used - 375

DECEMBER 30, 1942:
Surface patrol during dark, submerged during daylight.

: 0505 L - Sighted searchlight, parachute flares, and much A.A. fire in direction RABAUL. Display lasted until 0525 L.

— page 218 —
1942 - Cont'd
Posit: 0600 L Latitude 03-53 S Longitude 151-39.5 E
1200 L Latitude 03-49 S Longitude 151-45 E
2000 L Latitude 03-42 S Longitude 151-37 E
Miles Steamed - 74.6 Fuel Used - 439

DECEMBER 31, 1942: -
Surface patrol across traffic lanes northwest of WATOM ISLAND. Occasional overcast with intermittent rains.

0214 L - Sighted CHIDORI type torpedo boat bearing 332(T), range 7000 yards on easterly course, angle on bow about 60 S, in Latitude 03-42.5 S, Longitude 151-36.5 E. A few minutes later, distinguished at least two large ships and two escorts. Variable visibility with moon in and out of scattered clouds precluded possibility of closing range undetected for surface attack, so decided to run ahead, while obtaining convoy's course, speed, and composition; until visibility increased or decreased sufficiently for either periscope or surface attack.

0246 L - Estimated convoy's course as 115(T), speed 10 knots. Convoy (Contact No. 31) composed of 2 large AKs and 1 small tanker in a staggered column, with 4 CHIDORI type torpedo boats stationed about 500-1000 yards on beams of leading and rear ships in column. About this time convoy was lost to view in fairly heavy rainstorm, so set course for enemy's estimated 0500 L position. At 0330 L, visibility improved and moonlight periscope attack as believed possible.

0358 L - Picked up leading AK of convoy bearing 310(T), range 2000 yards, on course 115(T), angle on bow estimated at 15 S. Scattered clouds, but moonlight visibility good to excellent, so in view of present favorable position, decided attack submerged immediately rather than proceeding to enemy's dawn position.

0405 L - Submerged for approach. At 0420 L, having sighted nothing through periscope and believing convoy to have zigged away, closed track on normal approach course until sound picked up screws. 'At 0450 L, sighted leading AK at estimated range of 2000-3000 yards and changed to course for 90 S track, straight shot with second AK as target. Two leading escorts had passed ahead and leading AK was too close to firing bearing to allow time for change to firing course. Visibility was decreasing rapidly and after escorts could not be seen. About one minute later

— page 219 —
0520 L - Sighted outline of ships still on course 160(T).
Conti nued submerged patrol across traffic lanes.

: 1957 L - Surfaced and patrolled line between KALIHI HARBOR and WATOM ISLAND.

Posit: 0800 L Latitude 03-55.0 S Longitude 151-53.0 E
1200 L Latitude 03-50.0 S Longitude 152-00.0 E
2000 L Latitude 03-50.0 S Longitude 151-42 E
Miles Steamed - 80 Fuel Used - 53E

JANUARY 1, 1943:
Surface patrol between KALIHI HARBOR and WATOM ISLAND.
Intermittent rain with much cloudiness around horizon.

: 0149 L - Sound reported screws (105 RPM) bearing 135(T).
Thirty seconds later sighted CHIDORI class torpedo boat in Latitude 03-34 S, Longitude 151-51 E, coming out of rain cloud, bearing 145(T), range 1200 yards, on opposite parallel course (300(T)) at 10 knots.
Angle on bow at sighting was 30 starboard. (Contact No. 32). Made torpedo tubes ready, backed starboard and went ahead full on port screw to twist into position for straight bow shot, but target was past firing bearing and we couldn't twist fast enough to catch up. With range about 400-500 yards and our bow not quite pointing about 5 degrees abaft torpedo boat's stern, they apparently saw us, as 3 or 4 Japs, waving flashlights, were seen moving aft. Went ahead full speed and submerged, passing about 600 yards astern. The O.O.D., upon first sighting the ship, started the swing toward and got tubes ready. Trying to get lead angles set on gyros, while tubes were being made ready, would have complicated the situation. Time from sighting until we submerged was about 3 minutes. After submerging, sound picked up screws well abaft beam. Screws then faded out or stopped - no depth charges were dropped.

— page 220 —
1943 - Cont'd)

At periscope depth 15 minutes after submerging, could see nothing due to heavy rain. With so many chances and so many failures, the Commanding Officer is fast becoming discouraged. Heavy rains continuing, decided to remain submerged and take a blow. Lack of the automatic gyro-setting equipment was keenly felt.

0911 L - Sighted type 95 single-floats in Latitude 1500 yards, altitude 1500 feet, on northerly course.

0936 L - Sound reported echo-ranging 7-10 second intervals, hand-keying, bearing 185(T).

0946 L - Sighted 2 trawler-type patrol ships (C-nat No. 33) in Latitude 03-42 S, Longitude 151-56 S, bearing 163(T), range 12,000 yards on easterly course at speed 8 knots. No other ships sighted at same patrols. Patrol ships out of sight at 1030 L.

1617 L - Sighted same or another type 95 single-floats along same line in Latitude 03-44 S, Longitude 151-41 S, bearing 270(T), range 8000 yards, on southerly course. Went to 140 feet for 20 minutes when plane was observed to decrease altitude and head in our direction.

1954 L - Surface and patrols to northwest along traffic lanes.

Posit: 0800 L Latitude 03-35 S Longitude 151-56 S
1200 L Latitude 03-45 S Longitude 151-51 S
2000 L Latitude 03-39 S Longitude 151-40 S
Miles Steamed - 73.4 Fuel Used - 344

JANUARY 2, 1943: -

Surface patrol along traffic lanes to northwest of WATON ISLAND.

0022 L - Sighted destroyer or torpedo boat (Contact No. 33A) in Latitude 03-28.2 S, Longitude 151-30.3 S, bearing 104(T), range 12,000 yards. Course 100(T), speed 18-20 knots. Ship passed at minimum range of 4000 yards and was out of sight at 0040 L. Investigated area but sighted no other ships.

0421 L - Sighted smoke of convoy (Contact No. 34) in Latitude 03-28.2 S, Longitude 151-30.3 S, bearing 104(T), range 12,000 yards. Determined convoy to consist of two large APs or AKs (similar LYONS MARU) in column,

— page 221 —
1943 - Cont'd
escorted by 2 CHIDORI type torpedo boats, one ahead of column and one on port quarter of rear AK. Formation course 280(T), speed 9-10 knots.

0435 L - Submerged for approach, in position about 8000 yards dead ahead of convoy. Convoy easily sighted through periscope because of smoke. Commenced approach on leading AK on starboard trekk angle. At 0525 L, formation zigged to course 310(T), so crossed ahead for 90 port track, zero gyro stern tube shot. Shifted target to rear AK and set torpedoes at 6 and 8 feet so as to have chance of hitting escort on port quarter of rear ship, should set-up permit. Obtained count of 64 RPM on target.

0544 L - Fired 4 torpedoes on 90 port track, zero gyro angle, at estimated range 1500-1800 yards. Used longitudinal spread and firing intervals of 9-11-20 seconds which aimed torpedoes 50 feet ahead of bow, foremost, main-mast, and about 75 feet aft of stern. Observed target during firing but went deep immediately upon firing last torpedo because rear escort was about 800 yards on my port quarter and impulse bubbles and torpedo tracks were raising an unusual commoti on in the phosphorescent water. Two minutes and 1 second after firing first torpedo or one minute and 21 seconds after firing last torpedo, heard loud explosion accompanied by usual ripping and tearing sounds. These crackling sounds could be heard for 15 minutes after initial explosion. Position of attack, Latitude 03-23.8 S, Longitude 151-21.8 E. AKs were similar to LYONS MARU.

0549 L - Depth charge attack started. This attack was carried out very deliberately, six charges being dropped at intervals varying from 2 to 10 minutes. Escort did not echo-range but slowed or stopped to listen. All charges seemed to explode between 200-500 yards astern. Last charge exploded at 0610 L, but escort remained in vicinity until 0700 L.

0740 L - Periscope depth about 5 miles from attack position. Observed target dead in water on fire with smoke rising from stern. Superstructure and masts of torpedo boat also sighted, apparently standing by.

0814 L - While passing depth 80 feet, coming up to check on target, received two aerial depth bombs which exploded about 500 yards away. Went to 200 feet and changed course.

— page 222 —
0838 L - While at 200 feet, received string of 12 aerial depth bombs which landed close and shook up the ship. Cleared area to southeastward to check on fuel and air leaks.

: 1030 L - Periscope depth - no sign of target or escort. Continued submerged patrol to southward, across traffic lanes.

: 2000 L - Surfaced. Heavy rain, poor visibility.

Posit: 0800 L Latitude 03-29.8 S Longitude 151-23.1
1200 L Latitude 03-33.0 S Longitude 151-27.2
2000 L Latitude 03-45.2 S Longitude 151-33.5
Miles Steamed - 82.8 Fuel Used - 354

— page 223 —
1943-:
Surface and submerged patrol across traffic lanes between CAPE LAMBERT and WATOM ISLAND. Heavy rain, rough seas, and poor visibility throughout night. During daylight, visibility increased to about 5000 yards for a period of about one hour.

Posit: 0800 L  Latitude 03-50 S  Longitude 151-40 E
1200 L  Latitude 03-46 S  Longitude 151-40 E
2000 L  Latitude 03-51 S  Longitude 151-35 E
Miles Steamed - 66.1  Fuel Used - 360

JANUARY 4, 1943-:
Surfaces and submerged patrol vicinity of traffic lanes from NEW IRELAND to RABAUL. Poor visibility continued. Heavy intermittent rain storms. Heavy seas made depth control difficult.

1503 L - Sighted masts and stack (Contact No. 35) similar to small patrol two ship previously noted this area, in Latitude 03-43 S, Longitude 151-53.2 E, range about 6000 yards, on course 110(T), speed 8 knots. Angle on bow at sighting 110 P. Unsuccessful in attempt to close. In sight for about 10 minutes when obscured by rain.

2230 L -

Posit: 0800 L  Latitude 03-40 S  Longitude 151-50 E
1200 L  Latitude 03-41 S  Longitude 151-55 E
2000 L  Latitude 03-37 S  Longitude 151-48 E
Miles Steamed - 63.7  Fuel Used - 400

JANUARY 5, 1943-:
Surface patrol across traffic lane between KALIHI HARBOR and CAFE TAVUI. Poor visibility.

0440 L - Submerged about 8 miles southwest of LAMBAN BAY. Torrential rains with zero visibility have persisted during past 2 hours and showed no signs of letting up. Dawn position about 4 miles south of LAMBAN BAY. Conducted submerged patrol across lane from this point to CAFE TAVUI.

1214 L - Heard 4 aircraft bombs explode at some distance. Sighted nothing through periscope. Variable visibility during day.

1954 L - Surfaced for another night of rain and poor visibility.

- 25 - ENCLOSURE (..)

— page 224 —
2300 L - Decoded CTF-42 dispatch 6B directing SPARFISH to shift to area 3ASY (SOUTH.3ST) at sunrise, 9 January, and to leave for PARL at sunset, 11 January.

Posit: 0800 L Latitude 03-40 S Longitude 152-00 E
1200 L Latitude 03-35 S Longitude 151-55 E
2000 L Latitude 03-32 S Longitude 151-51 E
Miles Steamed 71.4 Fuel Used - 401

JANUARY 6, 1943:
Surface patrol in estimated position about 8-10 miles off coast NEW IRELAND. Visibility 500-2000 yards. During last few days a heavy easterly and southeasterly current has been experienced. Wind and sea from west and northwest has increased considerably.

0330 L - Submerged, not having been able to see more than 300 yards for past hour, due black clouds and rain. Proceeded to take up dawn position about 10 miles south of LANSAN BAY.

0500 L - Sound reported fast light screws which passed close aboard to southward. Heavy rain. At 0545 L, could see about 2000 yards, nothing in sight. The sound of screws was similar to that of patrol craft previously heard this vicinity. Periscope visibility during daylight between 0 and 2000 yards.

2000 L - Surfaced and patrolled across traffic lanes.

2130 L - Decoded CTF dispatch 97-B, relative sighting of a CV by SARCO,

... Since heavy rains and overcast weather have persisted during early morning in area north of BLANCH BAY, decided to patrol across enemy's track from reported 1500 L position to RABAUL during night, and to take up dawn position about 4-6 miles north of CAPE LAMBERT light.

Posit: 0800 L Latitude 03-38 S Longitude 152-04 E
1200 L Latitude 03-40 S Longitude 152-00 E
2000 L Latitude 03-45 S Longitude 151-49 E
Miles Steamed - 65.6 Fuel Used - 311

— page 225 —
1943:-
Surface patrol across traffic lanes, enroute dawn position north of CAPE LABERT light.

C355 L - Sound reported light fast screws bearing 352 relative. Excellent visibility, nothing sighted. Sound contact lost after a few moments - probably false contact.

C520 L - Submerged in estimated position about 2 miles north of CAPE LABERT light, and patrolled north and south during day. Visibility fair with overcast sky.

1957 L - Surfaced and patrolled across traffic lanes to northward. Much rain.

2230 L - Decoded CTF dispatch C2-B containing instructions relative route for clearing area and proceeding PSARL.

Posit: 0800 L Latitude 03-57 S Longitude 151-27 E
1200 L Latitude 03-55 S Longitude 151-23 E
2000 L Latitude C3-53 S Longitude 151-35 E
Miles Steamed - 60.3 Fuel Used - 418

JANUARY 5, 1943:-
Surface patrol during dark, submerged during daylight. Wind from northwest inceased about C330 L, heavy seas with much rain which continued throughout day. Depth control at periscope depth difficult to maintain.

Posit: COC L Latitude 03-17.0 S Longitude 151-35 E
1200 L Latitude 03-15.8 S Longitude 151-36 E
2000 L Latitude 03-25.5 S Longitude 151-43 E
Miles Steamed - 74.2 Fuel Used - 270

JANUARY 9, 1943:-
Surface patrol during night, submerged during daylight. At C210 L sighted lights and markings of hospital ship (Contact No. 36) bearing 137(T), distant 4 miles on course 290(T) at speed 12 knots. Estimated position, Latitude 03-32.C S, Longitude 151-10.8 E. At about 0600 L entered area EIS (SW). Conducted submerged patrol in estimated daylight position of enemy convoy reported enroute from equator to RABAUL. Heavy seas, overcast, with practically continuous rain.

— page 226 —
1943 - Cont'd
Posit: 0300 L. Latitude 03-20 S. Longitude 150-59.0 E
1200 L. Latitude 03-23 S. Longitude 150-56.8 E
2000 L. Latitude 03-33 S. Longitude 150-50.0 E
Files Steamed - 75.9 Fuel Used - 442

JANUARY 10, 1943:-
Surface patrol during night, submerged during daylight. Visibility excellent during night, with light rain. Patrol led long, traffic lanes about 12 miles south of DAUL ISLAND. Heavy seas continue but visibility fair.

1615 L - Sighted subchaser (Contact No. 37) bearing 175(T), distant 7000 yards on "asterisk" course at estimated speed 12 knots (20C RPM) in position Latitude 03-19 S, Longitude 150-44.3. Subchaser cut off sight in risetime at 1635 L. Angle on bow at sighting about 85 S and closest range about 5500 yards.

Posit: 0300 L. Latitude 03-26 S. Longitude 150-42 L
1200 L. Latitude 03-28 S. Longitude 150-40 E
2000 L. Latitude 03-15 S. Longitude 150-40 E
Files Steamed - 50.5 Fuel Used - 550

JANUARY 11, 1943:-
Surface patrol during night, submerged during daylight. Visibility excellent during night, with light rain. Patrol led long, traffic lanes about 12 miles south of DAUL ISLAND. Heavy seas continue but visibility fair.

1000 L - Gyo follow-up system out of commission.

17C6 L - Obtained uncertain fix on NE' HENOVER which showed heavy southeasterly set.

Heavy rains and poor visibility continued during night. Deadened to less west of TINGFON GROUP, being uncertain navigational position.

Posit: 0500 L. Latitude 03-04 S. Longitude 150-21 L
1200 L. Latitude 02.55 S. Longitude 150-22 L
2000 L. Latitude 02.50 S. Longitude 150-12 L
Files Steamed - 63.3 Fuel Used - 396

— page 227 —
1943:
- **Surface patrol clearing area.** Heavy rain, visibility 0-2000 yards.

- **C241 L - Sighted flash of light bearing 242(T), in estimated position Latitude 02-52 S, Longitude 149-30 E. Light disappeared immediately. Visibility zero except during flashes of lightning. C.C.D. thought he sighted subchaser or torpedo boat bearing about 060(T) but this sighting was not confirmed.**

- **C305 L - Sighted lights and markings of hospital ship on southerly course, estimated range about 5000 yards. Position Latitude 02-26 S, Longitude 149-25 E. (Contact No. 38).**

- **C515 L - Submerged about 12 miles north of channel between TING-WON and NEW HANOVER. Rain throughout day and no land sighted. Crew follow-up temporarily remained.**

- **C1930 L - Surfaced and proceeded across area EASY (NORTH) enroute point Latitude 00-00, Longitude 161-00 E, in accordance routing instructions.**

- **Posit: 0800 L Latitude 02-15 S Longitude 149-45 E 1200 L Latitude 02-14 S Longitude 149-51 E 2000 L Latitude 02-11 S Longitude 150-16 E Miles Steamed - 150.9 Fuel Used - 1107**

- **JANUARY 13, 1943: -**

- **Surface and submerged patrol across area EASY (NORTH) enroute PARL.**

- **C200 L - Ran north and south in position Latitude 02-00 S, Longitude 152-00 E, while transmitting SPARFISH dispatch 121549 to CTF FORTY-TWC reporting results. Recapt obtained at C343 L. In accordance with Combatant Force FORTY-TWC OpOrd #S60-22, operational control passed to Combatant Force SWEN.**

- **Posit: 0800 L Latitude 01-50 S Longitude 152-40 E 1200 L Latitude 02-00 S Longitude 152-49 E 2000 L Latitude 02-17 S Longitude 153.02 E Miles Steamed - 150.6 Fuel Used - 1707**

- **JANUARY 14, 1943: -**

- **Surface and submerged patrol, crossing area EASY (NORTH) enroute PARL.**

— page 229 —
1. SUBMERGED when radar range indicated 4-1/2 miles.
Plane not sighted. Three main engine exhaust valves (inboard and outboard) leaked very badly, necessitating continuous pumping.

: 2. RECEIVED 2 depth bombs, distant about 500 yards.
Altered course.

: 3. DRAIN pump quit. Satisfactory suction not obtainable with trim pump. Bucket brigade kept bilge water from main motors by dumping into sanitart tanks, until drain pump back in commission.
Remained submerged until 1745 L, due radar indications planes 3-1/2 tc 5 mils various times through out day. Upon surfacing, rubbed in all exhaust valves and proceeded.

Posit: 0800 L Latitude 03-08.3 N Longitude 168-24.0 E
1200 L Latitude 03-11.1 N Longitude 168-44.0 E
2000 L Latitude 03-15.0 N Longitude 169-21.0 E
Miles Steamed - 262.3 Fuel Used - 4427

JANUARY 18, 1943:-
Surface patrol enroute PEARL, during night. Submerged during daylight because of visibility conditions and to evade plane patrol which seems to have us fairly well spotted in.

Posit: 0800 L Latitude 04-16.2 N Longitude 171-31.0 E
1200 L Latitude 04-22.3 N Longitude 171-43.5 E
2000 L Latitude 04-40.0 N Longitude 172-19.2 E
Miles Steamed - 196.9 Fuel Used - 2243

JANUARY 19, 1943:-
Surface patrol enroute PEARL.

0100 L - Set clocks to Z.D.(-)12.

0500 M - Obtained radar contact at 13 miles, decreasing Sky clear with few scattered clouds.

0903 M - Submerged when radar range decreased to 7 miles. Plane not sighted. (Latitude 04-44.3 N, Longitude 175-25.0 E).

0506 M - At 140 feet, with course changed 40 degrees, received two depth bombs which exploded almost simultaneously about 75 yards away and caused considerable minor damage. Increased depth and cleared

— page 232 —
0225 X - Sighted aircraft illumination flare bearing 055(T), distant 15 miles.

: 0243 X - Radar contact with & planes distant 6 and 14 miles closing.

: 0245 X - Sighted running lights of plane in Latitude 20-33.5 N, Longitude 159-59.0 E, bearing 045(T), radar range 6 miles, apparent heading for us. Realized that our planes were probably searching for enemy submarines reported this vicinity, and wondered how they could distinguish between enemy and friendly submarines at night. At radar range of 3 miles, plane either turned off running lights or disappeared into clouds. When radar range decreased to 2 miles, ignited emergency identification flares which effectively illuminated us for both plane and submarine. Radar range increased and faded out at 18 miles. Commenced zigzagging enroute rendezvous.

: 0410 X - Sighted escort bearing 070(T), distant 8000 yards; exchanged recognition signals and followed to PLART.

: 0841 X - Moored port side to berth S-6, U.S. Submarine Base, Pearl Harbor, T.H. Completed patrol.

— page 233 —
2. WEATHER:
2-12 DECEMBER 1942 - Enroute Brisbane, Australia, to Patrol Area Easy South.
Sky generally overcast with long swells from the southeast until reaching vicinity of Solomon Islands, then sky cleared and sea was calm. Wind 4 to 7 knots from southeast, shifting through north to northwest when east of New Ireland. Visibility fair to good, decreasing because of surface glare at night during calm seas around Solomon Islands. Average barometer 30:00 inches, decreasing to 29:95 on approaching patrol area. Average temperature 84°F.

12-26 DECEMBER 1942 - ON STATION - PATROL AREA EASY SOUTH.
Sky alternately clear and cloudy, with cloud banks generally around horizon. Daily rain, usually in showers of short duration. Wind 1 to 4 knots from northwest. Sea usually calm, with occasional swells from northwest. Visibility fair to good when sky was clear, but decreasing to poor during the cloud and squally weather which predominated. A cloud bank covering an arc of about 30° to 40° in azimuth was always visible in the southeast and visibility was invariably poorest in that direction.

26 DECEMBER 1942 - ON STATION - AREA EASY SOUTH EAST.
Sky cloudy and overcast, clearing occasionally for periods of an hour or longer. Cloud banks normally around the horizon, decreasing visibility during the day to a general maximum of 10,000 yards. At night visibility alternately good and poor, heavy rain squalls reducing visibility to zero frequently. Wind and sea were moderate from the northwest until 6 January, then increased in intensity. Average barometer 29:94. Average temperature 86°F.

— page 234 —
11-25 JANUARY 1943 - Enroute Patrol Station to Pearl Harbor, T.H.

Sky generally clear with detached clouds after leaving vicinity of New Ireland. Wind and sea moderate from the northward until clear of Bismarck Archipelago, then shifted to northeast. Sea increased to long swells and wind increased to 8-10 knots when east of Makin Island. Visibility generally excellent after leaving New Ireland.

Average barometer 29.90.
Average temperature 83°F.

— page 235 —
3. TIDES AND CURRENTS:
In area EASY (SOUTHEAST) experienced a constant current of 0.8 knots on 100°(T).

4. NAVIGATIONAL AIDS:
None.

— page 237 —
1942 : TIME : ENEMY : INITIAL:MINUTE:
DATE : LOVE : POSITION : TYPE : RANGE : RANGE : COURSE : SPEED : RPM:
7. : 12/21: 1049 : 03-19.8S : SC : 18000 : 16000 : 090 : 15 : -
: 151-06.8E : :
3. : 12/21: 1438 : 03-32.2S : SC : 10000 : 3000 : 300 : 18 : -
: 150-58.5E : :
9. : 12/22: 0432 : 03-42.0S : Smoke : 25000 : 20000 : 090 : 15 : -
: 150-23.0E : :
3. : 12/22: 1009 : 03-53.5S : Trawler : 15000 : 3000 : Var. : 10 : -
: 150-56.3E : :
1. : 12/22: 2215 : 03-37.0S : CHIDORI : 12000 : 6000 : 110 : 12 : -
: 150-45.5E : or DD : :
2. : 12/23: 1448 : 03-28.2S : SC : 12000 : 12000 : 300 : 15 : -
: 151-01.8E : :
3. : 12/24: 0023 : 03-32.2S : CHIDORI : 4000 : 3000 : 110 : 8 : -
: 150-36.0E : T.3. : :
4. : 12/25: 1305 : 03-02.0S : 4 AK : 30000 : 2800 : 230- : 10 : -
: 150-12.6E : 1 TB : 330 : :
5. : 12/25: 1914 : 03-06.4S : TB : 15000 : 15000 : 060 : 8 : -
: 150-07.7E : :
6. : 12/27: 0320 : 03-24.3S : Patrol : 6000 : 6000 : ? : ?
: 150-42.2E : :
7. : 12/27: 2306 : 03-36.9S : Hospital : 12000 : 4000 : 310 : 10 : -
: 151-46.0E : :
8. : 12/28: 0632 : 03-54.5S : 3 : 8000 : 4000 : 020 : 6 : -
: 152-14E : Trawlers : :
9. : 12/28: 0640 : 04-01S : 2 : 6000 : 5000 : 130 : 6 : -
: 152-16E : Trawlers : :
0. : 12/28: 1246 : C3-55S : 4 : 15000 : 15000 : 300 : 18 : -
: 152-01E : CHIDORI : T.B. : :
1. : 12/31: 0214 : 03-42.5S : 2 AK : 7000 : 100 : 115 : 10 : -
: 151-36.5E : 1 AO : 160 : :
: 4 TB : :

— page 238 —
1943: TIME: ENEMY : INITIAL: MINIMUM: DATE: LOVE: POSITION: TYPE: RANGE: RANGE: COURSE: SPEED: RPM:
12: 1/1: 0149: 03-34 S : CHIDORI : 1200 : 400 : 300 : 10 : 105:
: 151-51 E : TB :
3.: 1/1: 0946: 03-42 S : 2 SC or : 12000 : 10000 : 090 : 8 :
: 151-56 E : Trawlers:
38: 1/2: 0022: 03-19.7S : 1 DD : 6000 : 4000 : 100 : 20 :
: 151-24.1E : or TB :
4.: 1/2: 0421: 03-28.2S : 2 AK : 12000 : 1500 : 310 : 9 : 64:
: 151-30.3E : 2 TB :
35.: 1/4: 1503: 03-43 S : Petrol : 6000 : 5000 : 110 : 8 :
: 151-53.2E :
36.: 1/9: 0210: 03-32 S : Hospital: 8000 : 4000 : 290 : 12 :
: 151-10.8E :
37.: 1/10: 1615: 03-19 S : SC : 7000 : 6000 : 280 : 12 : 200 :
: 150-44 E :
38.: 1/12: 0315: 02-26 S : Hospital: 5000 : 3000 : 130 : 9 :
: 149-28 E :

- 3 - NAVY (..)

— page 240 —
7. PARTICULARS OF ATTACKS:

No. | ATTACK #1 | ATTACK #2
---|---|---
Date: | December 25, 1942 | January 2, 1943
Latitude: | 02-56.1 S | 03-23.8 S
Longitude: | 149-55.2 E | 151-21.6 E
Target: | 2 AKs (LIMA MARU) | AK or AP (LYONS MARU)
No. Torps. Fired: | 4 Mk. Z-3 | 4 Mk. Z-3
Firing Interval: | 10 - 14 - 10 | 9 - 11 - 20
Firing Range: | 2800 | 1600
Torpedo Run: | 2800-3800 | 1500
Point of Aim: | Bow - foremast of leading AK. | 50 feet forward bow - formast - mainmast - 75 feet aft of stern.
Track Angles: | 110 Port | 90 Port
Cvro Angles: | 0 (Bow) | 0 (Stem)
Depth Settings: | 8 -10 - 8 - 10 | 6 - 8 - 6 - 8
Est. Enemy Course: | 320(T) | 310(T)
Est. Enemy Speed: | 10 knots | 9 knots
Own Course: | 030(T) | 220(T)
Own Speed: | 3 knots | 2.5 knots
Own Depth: | 64 feet | 62 feet
Method of Attack: | Dar submerged. TDC and Mk.VIII angle solver. | Night submerged. TDC and Mk.VIII angle solver.
Spread: | Longitudinal | Longitudinal
2.T. Fired | 15-06-10 L | 05-44-00 L
Time Explosion: | 15-09-25 and 15-10-39 | 05-46-01
Weather: | Clear | Clear
Sea: | Smooth | Slight swell from N.W.
Sound Conditions: | Good (7000 yds) | Fair (5000 yds)

-1- EXCUSE (:)

— page 241 —
8. ANTI-SUBMARINE MEASURES:

Patrol craft consisting of CHIDORI type torpedo boats, trawlers, and in one instance, a motor torpedo boat, appeared to operate along traffic lanes to and from RABAUL. All traffic was escorted by either torpedo boats or destroyers. Little echo-ranging was noticed, patrols and escorts seemed to employ the "slow and listen" procedure. Patrol craft endeavored to attract submarine by periodically omitting heavy black smoke.

Aircraft patrols were encountered, especially after the presence of the submarine had been detected previously by surface craft. Aircraft depth-charging was more accurate than that of surface craft.

Enroute PEARL, while passing between MAKIN ISLAND and MILI ATOLL, we were sighted on three occasions, at distances of 100 to 500 miles from MAKIN. Night air patrols were not encountered.

— page 242 —
9. MAJOR DEFECTS:

EXHAUST VALVES -

Inboard and outboard main engine exhaust valves leak excessively on all occasions, unless previously pampered by slapping and rubbing in. Quick dives off the engines are invariably followed by excessive and sometimes dangerous leakage. Some method of removing carbon and making tight at least three inboard valves must be devised.

PUMPS -

Both trim and drain pumps are noisy and unreliable, although overhauled during each refit. Until exhaust valve leakage can be lessened, an additional drain pump installed in the after engine room might, because of the shorter piping involved, improve the present unsatisfactory installation. Location of the pump aft would be especially advantageous when the ship is carrying a heavy down angle aft.

TAIN MOTORS: -

A close aerial depth-charge dislodged several main motor brushes from their holders. In No. 3 main motor, the brush spring assembly fell clear of the brush holder into the sump, while in No. 4 main motor, two brush spring assemblies were knocked clear in the same manner but brushes remained in position without any spring tension holding them against the commutator. Recommendation for altering present installation to prevent reoccurrence will be submitted.

MAIN ENGINES -

Bearing cap nut (No. 2 M.E., No. 9 unit) on inboard side of the connecting rod backed off 1/2 inch, shearing brass cotter pin, and allowing bearing cap to swing down and strike crosshead guide. Resultant pounding ruined conn rod bearing, bent conn rod, and loosened jack bolts on No. 9 and No. 10 main bearings. Main shaft crank journal was scored slightly. On tests following repair, No. 9 main bearing wiped, and upon renewal wiped again. Engine placed in operating condition by reinstalling original No. 9 main bearing, limiting engine speed to 600 RPM and cutting out No. 9 lower cylinder.

— page 243 —
1. CONFIDENTIAL
: (MAJOR DEFECTS - Cont'd)
: MAIN ENGINES - Cont'd -
: Damage caused by conn rod bearing caps not having been made up tight following an inspection, and substitution of brass for steel cotter pin.

: TORPEDO CONTROL: -
: Neither automatic gyro setting nor local power could be employed to set gyro angles on all the Mk X-3 torpedoes in one nest, due to overload on clutch. Using local hand setting, it was found possible to set predetermined gyro angles simultaneously on a maximum of two torpedoes in any one nest, but at periscope or greater depths gyro angles could be set only on one torpedo at a time. Consequently, the TDC was employed for tracking only, torpedo gyros were set to zero and fired on bearing obtained from Mk VIII angle solver.

: PIPING -
: Superstructure piping, including vent risers, is badly corroded. Leaky piping has been renewed or patched during each refit but additional leaks occur after a few weeks patrol and after each depth-charging.

— page 244 —
10. GENERAL REMARKS:
Results of this patrol were discouraging. It is felt that sufficient traffic was encountered to warrant more than two attacks. Methods of tracking and approach used on previous patrols just didn't seem to "click."

COMMUNICATIONS:
Reception and transmission satisfactory. No serials were missed.

SOUND:
Reception generally good, except during rain squalls, when nothing but fall of rain on surface of water could be heard. While on surface patrol, the slow speed screws of enemy petrol ships could not be detected, and during submerged patrol, same screw noises were picked up only at comparatively short ranges.

RADAR:
SD radar equipment was overhauled in BRISBANE and remarkably successful results obtained. On two occasions, submerged upon radar contacts at ranges of 4 and 7 miles, having been unable to sight planes. On both occasions aircraft depth-charging occurred very few minutes later. This is the only patrol that radar equipment has operated satisfactorily and it has proved itself invaluable.

DEPTH CHARGING:
In additi on to usual gauge breakage and grounds on IC equipment, a close aerial depth charge produced the following results not before experienced:

1. Shattered all electric light steam-tight fittings in the conning tower.
2. Knocked main motor brushes out of holders.
3. Shattered W.C. porcelain bowl.
4. Caused slight leakage around conning tower door. Gasket apparently not damaged and leakage did not reappear during following dives.

-1- INCLOSURE (..)

— page 245 —
5. Dished in gun sight W.T. covers, although sights and gun operating mechanism not otherwise affected.

6. Effectively seated main engine outboard exhaust valves which stopped excessive leakage.

7. Blow entire gasket completely out of safety tank main vent valve. Gasket, undamaged, was later found draped over vent valve operating arm. Partially blew gasket out of #4 main ballast tank vent valve.

8. Throw out of adjustment 2 main vent and 5 hull opening electrical indicators, lights turning from green to red.

HEALTH AND MORALE:
The health of the crew was good. One man was admitted to the sick list for 12 days with venereal disease. About 20% of crew and 3 officers suffered from prolonged coughing spells which had the effects of whooping cough without nausea or vomiting. These spells, which persisted more or less throughout the patrol, did not incapacitate anyone for duty.

The commanding officer, 4 officers, and approximately 80 per cent of the crew have been continuously on war patrol in the Southwest Pacific area since the start of the war. The majority of refits have been accomplished by the ship's force. An opportunity to visit their families would maintain their morale and spirit more than any other factor.

LOGISTIC DATA:
Length of patrol - 54 days
Miles Steamed - 7481
Total fuel expended - 90303 gals.
Total lub. oil expended - 2940 gals.
Fuel consumption - 12.08 gals/gal Fuel
Lub. oil consumption - 0.0326 gals/gal Fuel

- 2 - ENCLOSURE (..)

— page 246 —
1943-03-25
Serial (010)
CONFIDENTIAL

From: The Commander Submarine Division FORTY-THREE.
To: The Commander Submarine Force, Pacific Fleet.
Via: The Commander Submarine Squadron FOUR.

Subject: U.S.S. SPEARFISH - Seventh War Patrol, Comment on.

1. The SPEARFISH returned from patrol in poor material condition due to not having had a complete overhaul since May 1941. The major defects which will require correction before making another patrol are as follows:

   (a) Completely overhaul all engines; including reblocking No. 4 main engine and replacing a bent crankshaft in No. 2 main engine.

   (b) Renew piping in superstructure; vent risers, 10 lb. blow lines, and sections of main induction piping are deteriorated beyond further patching.

   (c) Lift all main motor and main generator armatures for complete overhaul; meager readings on generators and two motors are below one megohm.

   (d) Renew five year old main storage battery.

Copy to:
USS SPEARFISH.
70-Nh
January 27, 1943.

Serial (014)
SUBARCTIC SQUADRON FOUR

CONFIDENTIAL

FIRST ENDORSEMENT

From: The Commander Submarine Squadron FOUR.
To: The Commander Submarine Force, Pacific Fleet.
Subject: U.S.S. SPEARFISH - Seventh War Patrol, Comment on.

1. Forwarded.

ENCLOSURE (A)

— page 248 —
12/1/1943
Serial 0111
Care of Fleet Post Office;
San Francisco, California,
January 30, 1943.

CONFIDENTIAL
SUBARU PATROL REPORT NO. 127
U.S.S. SPEARFISH SEVENTH WAR PATROL.

Subject: U.S.S. SPEARFISH (SS190) - Report of Seventh War Patrol.

5. SPEARFISH is congratulated on inflicting the following damage on the enemy:

| DAMAGE | TOTALS |
|-------||
| 1 Freighter (LIMA MARU type) | 7,000 tons |
| 1 Freighter (LIA MARU type) | 7,000 tons |
| 1 Freighter (LYONS MARU type) | 7,000 tons |

TOTAL - 21,000 tons

6. The above damage, and also the damage inflicted by the SAILFISH on its seventh war patrol (Commander Submarine Force, Pacific Fleet, Patrol Report No. 126) were inflicted before the two vessels joined this force and should be credited on the records of Commander Submarines, Southwest Pacific Force.

J. H. BROWN, Jr.,
Acting.

DISTRIBUTION
(1M-43)
List III, SS
Special:
P1(5), EN3(5), Z1(5),
Consublant(2), X3(1),
Consubsowespac(2),
Subschool, N.L. (2).

E. R. STINBURNE,
Flag Secretary.

— page 249 —
5 JUNE 1943.
1100(VW) Departed Pearl under escort by PC584.
2025(VW) Escort departed.
6 JUNE 1943.
1000(VW) Sighted friendly AOG and PY on opposite course.
7 JUNE 1943.
0703(W) Sighted air escorts.
0920(W) Moored at Johnston Island. Topped off fuel, repaired gyro.
1406(W) Underway for patrol station.
8 - 10 JUNE 1943.
Proceeding toward area.
11 JUNE 1943
0822(M) Sighted plane, dived. Plane not identified. Plane low, no SD contact.
0900(M) Surfaced.
12 JUNE 1943.
1241(L) Arrived at Lat. 12-38 N., Long. 168-43, patrolled east and west courses.

— page 250 —
2110(L) Proceeding toward assigned area.
13 JUNE 1943.
1545(L) Entered area seventeen.
1852(L) Bent on three engines.
14 JUNE 1943.
0519(L) Dived for all day submerged patrol. Rounded all torpedoes, drills.
1853(L) Surfaced, went ahead on three engines.
2015(L) Departed area seventeen.
15 JUNE 1943.
0016(L) Entered area sixteen.
0524(L) At Lat. 6-55, Long. 161-50, dived; patrolled.
2117(L) Proceeding toward assigned area at two engine speed. No contact.
16 JUNE 1943.
0900(L) Departed area sixteen.
17 JUNE 1943.
0125(K) Entered area fifteen.
0450(K) Commenced submerged patrol, course 270°.
1843(K) Surfaced.
2300(K) Steering courses toward moon.
18 JUNE 1943.
0454(K) Submerged, patrolling across tracks from Truk to eastward of Hall Islands.
1850(K) Surfaced, headed to westward of Hall Islands.
19 JUNE 1943.
0458(K) Submerged, patrolling to westward.
1907(K) Surfaced, set course for westward of Nanounito Island.

— page 251 —
20 JUNE 1943.
0458(K) Submerged, patrolling west of Manounito Island.
1910(K) Surfaced.

21 JUNE 1943.
0247(K) Sighted ships bearing 311°(T) to 334°(T).
0251(K) Dived, started approach. Counted 11 to 14 ships. Three passed to northeastward of us, remainder to southwestward. Practically full moon but above heavy overcast. Shapes plainly visible but characteristics impossible to distinguish until close. Early stages of approach on cruiser, then shifted to carrier on his starboard quarter.

0337(K) Fired four torpedoes, all missed. Range and speed probably underestimated, fired late. Maneuvered for position to fire stern tubes at another carrier.

0344(K) Heard four distant explosions, probably torpedoes at end of run.

0345(K) Destroyer coming in on port beam with very small angle on bow. Went deep. One set of screws remained in vicinity but no depth charges.

0450(K) No screws heard for about twenty minutes, came to periscope depth. Destroyer just forward of starboard beam, angle on bow about 40 port, stopped or going very slowly. After 360° sweep with periscope, destroyer had considerable bow wave and zero angle on bow. Went deep. No depth charges. He stayed with us until about 0900 after which no screws were heard.

1000(K) Commenced heading north at periscope depth.
1919(K) Surfaced, headed to eastward of Manounito Island.

22 JUNE 1943.
0445(K) Submerged, patrolling toward Truk.
0900(K) Changed course to 090°(T).
1915(K) Surfaced.

— page 252 —
2236(K) Sighted Lutke Island, bearing 109°, distant about 12 miles.

: 24 JUNE 1943.
: 0443(K) Submerged, patrolling across tracks from Truk to westward of Hall Islands.

: 25 JUNE 1943.
: 0453(K) Submerged, patrolling to southeast.

: 26 JUNE 1943.
: 0440(K) Submerged.

: 26 JUNE 1943.
: 1907(K) Surfaced.

: 27 JUNE 1943.
: 0441(K) Submerged.

: 27 JUNE 1943.
: 1907(K) Surfaced.

: 27 JUNE 1943.
: 1920-1935(K) Searchlight on Truk.

: 27 JUNE 1943.
: 0439(K) Submerged.

: 27 JUNE 1943.
: 1907(K) Surfaced.

— page 253 —
28 JUNE 1943.

0441(K) Submerged.

1236(K) Sighted smoke, started approach.

1239(K) Sighted plane.
Two convoys, first consisting of one escort (looked like big cabin cruiser yacht) and one freighter passed astern while approach was being made on second convoy. Second consisted of four freighters and one torpedo boat.

1425(K) Fired three torpedoes at 6500 ton freighter. Missed, targets turned away. Glassy sea and could not get closer than 2500 yards.

1429(K) Went deep.

1432 to 1514(K) Nine depth charges, groups of three, none too close.

1522(K) to 1624(K) Pinging, but he apparently could not locate us. Remained below 90 feet until

1838(K) Nothing in sight.

1925(K) Surfaced and followed convoy.

2352(K) Sighted four ships and started tracking with disappointing results. With each change of our course, a course change by the target would be indicated.

29 JUNE 1943.

0234(K) With moon coming out, submerged to 40 feet at range about 5200 yards, on enemy port bow, distant 500 yards from track.

0310(K) Although range should have been less than 1000 yards and sound indicated ships getting close, neither periscope nor radar could pick up ships. Went to 90 feet. One ship passed directly over-head, others on each side. No attack made.

0400(K) Surfaced.

0445(K) Submerged, headed toward Truk.

1907(K) Surfaced.

— page 254 —
30 JUNE 1943.
0448(K) Submerged.
1855(K) Surfaced.
1 JULY 1943.
0443(K) Submerged.
1840(K) Surfaced.
2 JULY 1943.
0433(K) Submerged.
1400(K) Entered area sixteen.
1855(K) Surfaced.
3 JULY 1943.
0421(K) Submerged.
1750(L) Sighted two sampans.
1955(L) Surfaced.
2248(L) Set course for reconnaissance locale.
4 JULY 1943.
0531(L) Submerged.
1925(L) Surfaced.

5 JULY to 11 JULY 1943
Period spent on reconnaissance, covered in Annex "A" hereto.
11 JULY 1943.
1908(L) Reconnaissance completed, set course 135°(T) until report made.
12 JULY 1943.
0014(L) Changed course to 270°(T).
0509(L) Submerged, changed course to 000°(T).

— page 255 —
1635(L) 1655(L) 1657(L) 1714(L) 1727(L) 1736(L) 1746(L) 1752(L) 1810(L) 1842(L) 1955(L) 2324(L) 0516(L) 1945(L) 0713(K)

: 16 JULY to 27 JULY 1943. Patrolling on surface, made trim dives at dawn. No contacts.

: 16 JULY 1943. Enroute on surface, made dive at dawn for trim.

— page 256 —
28 JULY 1943.

Patrolling on surface on course 350°(T).

0120(K) Set course for eastern edge of area at three engine speed.

0452(K) Submerged.

0532(K) Surfaced.

1730(K) Departed area, set course for Midway.

29 JULY to 31 JULY 1943.

Enroute to Midway, made trim dives at dawn.

1 AUGUST 1943. (Repeated)

Enroute to Midway.

0950(M) Sighted plane bearing 000°(T), range 10 miles. No radar contact, too low.

1 AUGUST 1943. (Repeated)

0500(Y) Rendezvous with aircraft escorts.

0731(Y) Moore at Submarine Base, Midway.

MILES STEAMED:

| Fuel Used | Pearl to Johnston | 750 | 9834 |
|||-----|------|
|           | Johnston to Station | 2575| 23000|
|           | On Station         | 5606| 40000|
|           | Station to Midway  | 1596| 19600|
|           | Total            | 10527| 92434|

FACTORS OF ENDURANCE REMAINING:

| Factor | Condition | Fuel | Personnel | Fresh Water | Food | Torpedoes | Personnel |
|||------|||-------|

— page 257 —
14

Subject: U.S.S. SPEARFISH - Report of Patrol.

Weather:
In general, weather was good except for occasional rain squalls. Weather in the last area assigned was the most disagreeable of any experienced during the patrol, with rain squalls being quite frequent.

NAVIGATIONAL INFORMATION:
No remarks. Information concerning Eniwetok Atoll is covered in Annex (A).

CURRENTS:
Currents encountered were in general the same as those previously reported by submarines operating in the same areas. In area fifteen, the general set experienced was northwesterly. In the vicinity of Eniwetok Atoll, the current is in general westerly, following the contour of the encircling reef close in, with velocities of 1/2 to 2 knots.

ANTI-SUBMARINE MEASURES:
Probably the destroyer which passed over us on the morning of 21 June (1st attack) did not know of our presence at the time. He continued on his way and not until considerably later did a destroyer approach from the direction in which the task force was moving. Then his tactics consisted of running a few minutes, stopping, and going ahead again. No pinging was used. No depth charges were dropped. He passed close several times but gave no indication of knowing it.

On the attack on 28 June (2nd attack), as the third torpedo was fired, an impulse bubble was seen. The freighters headed away and the torpedo boat apparently headed directly for the impulse bubble. The sea was glassy. He dropped nine charges, the first a single followed a minute and a half later by a group of three in quick succession. Five minutes later another group of three. The last two came thirty-four minutes later and were thirty seconds apart. His maneuvers consisted of running slow, stopping, then speeding up and dropping. He was abaft our beam at all times. Nine minutes after the last charge he started echo ranging but was then apparently rather distant and he did not locate us.

— page 258 —
12 July (3rd attack) appeared to consist of dashing about. Charges were dropped in groups of four, seven, and four, with intervals of almost exactly one minute between charges in each group. He passed close aboard twice, passing astern each time, and once passed directly overhead. He did not stop, but changed speed several times.

MINESWEEPING OPERATIONS:

None.

MAJOR DEFECTS:

Gyro error varied between zero and four degrees west throughout patrol.

Grounded out D.Q. prevented getting bearings on Japs transmitting on 450 kcs. and believed passing through our area.

Port bow plane shaft leaked badly.

TORPEDO PERFORMANCE:

Satisfactory, except on attack on destroyer (3rd attack) two torpedoes apparently detonated prematurely after running about 650 yards. The splash of one was seen just abaft the destroyer's bridge and appeared to be 25 to 50 yards short of the destroyer. The other was not seen. The interval between detonations was about one second, although the firing interval was 10 seconds.

HEALTH AND HABITABILITY:

Excellent.

RADIO:

The reception was good at all times. At night 8230 kcs. was used to best advantage, with 4115 at about 1200 to 1800 GMT during the daylight hours. 12345 kcs. is the best.

There was not jamming at any time on the NPM schedules. On 450 kcs. one interception of one of our own submarines, distance at least 500 miles, was received very clearly. Also what seemed to be Japanese code one night in last patrol area about 0200 local time.

— page 259 —
16

Subject: U.S.S. SPEARFISH - Report of Typhoon War Patrol.

Transmission was good at all times. Only one time did NPM fail to answer up before Melbourne picked up the transmission.

The submerged loop is good down to 65 feet, no more, up to distance of 2000 miles. 85 feet was the best depth experienced and that was just off Pearl Harbor.

SOUND:

Excellent. Sorews picked up at one time when ship was still hull down. Estimated range at time, 10,000 - 12,000 yards.

FATHOMETER:

Tested, found working.

RADAR:

SD - No tube failures after better than 280 hours of use. Will pick up planes as low as seven to eight degrees.

SJ - No tube failures on this patrol. Range tank has a tendency to leak. In use on one attack: sensitivity used, 85 per cent. Bearings were from two to four degrees off with bearings taken on bridge. Maximum range at this time and best so far on a ship was 15,000 yards. A large pip was obtained and it was easy to hold. At about 5,000 yards ship dived. Decrease of elevation lost the pips. No leaks around wave guide through pressure hull.

— page 260 —
14

| Attack | (1) | (2) | (3) |
|-------|-----|-----|-----|
| Time (GCT) | 1737 | 0425 | 0554 |
| Date | 6/20/43 | 6/28/43 | 7/12/43 |
| Location (Lat.) | 8°39' N. | 7°58.5'N. | 11°12' N. |
| (Long.) | 149°20' E. | 152°42.5'E. | 161°50' E. |
| Number and Type Torpedoes Fired on Each Attack | 4 | 3 | 3 |
| Hits | 0 | 0 | 0 |
| Number Sunk (Tonnage) | 0 | 0 | 0 |
| Number Damaged | 0 | 0 | 0 |
| Type of Target | CV | Freighter | DD |
| Range (in yards) | 850 | 2500 | 650 |
| Type of Attack: | | | |
| Peris (T), Night (N) | N,P | P | P |
| Estimated Draft of Target | 2.1 ft. | 15 ft. | 9 ft. |
| Torpedo Depth Setting | 21 ft. | 15 ft. | 10 ft. |
| Bow or Stern Shot | Bow | Bow | Stern |
| Track Angle | 150P-161P | 110P-116P | 20S - 43S |
| Gyro Angle | 330-319 | 009-007 | 154-175.5 |
| Estimated Target Speed | 16 | 8 | 18 |
| Firing Interval | 10 s. | 10 s. | 10 s. |
| Spread - Amt. and Kind | 4° Div. | None | 4° Div. |
| Was Torpedo Performance Satisfactory? | Yes | Yes | No |
| Remarks: | Attack #3 - One sure premature torpedo, possibly two. | | |

— page 261 —
1. ATTACK #1:-
A task force consisting of at least eleven ships, including three aircraft carriers, probably a battleship, one Aoba class and one Tenryu class cruisers, and the remainder probably cruisers and destroyers, was sighted at a range of ten to twelve miles. The sky was heavily overcast with practically a full moon. After five minutes it was apparent that the ships were headed directly toward SPEARFISH, so submerged and ran with task force. Ships passed on either side of SPEARFISH, one Aoba passing within three hundred yards as SPEARFISH was turning in to attack carrier which was on starboard quarter of cruiser. Had planned to be about 1000 yards abeam of carrier but range was about 650 yards. Attack organization sagged - the officers who should have kept the approach officer informed of track and gyro angles failed to do so and the commanding officer failed to realize the situation until the target got by. Misses are attributed to unfavorable track and gyro angles and probable greater range than used. After firing bow nest, SPEARFISH turned to fire stern tubes at carrier astern of first. As the firing course neared, the commanding officer saw a destroyer coming in on the port beam with a zero angle on the bow - went deep and rigged for depth charge attack. Subsequent events indicated that the destroyer was not cognizant of our presence but was merely a screen on the port bow of the carrier proceeding in position. A golden opportunity lost!

ATTACK #2:-
While patrolling at periscope depth in the general area where patrols had been sighted the two previous nights, smoke was sighted. Turned directly toward, determined general direction of movement and came to normal approach course. On second look a plane was sighted, in general direction of smoke, on course to pass ahead. With the smoke bearing about 90 degrees relative, a single freighter was soon on the port quarter with a 50 degree starboard angle on the bow. A few minutes

— page 262 —
16

Subject: U.S.S. SPEARFISH - Report of HIGHLAND WAR PATROL.

---

**ATTACK #3:**

Sighted masts of destroyer coming fast. As he had a 30 degree starboard angle on bow, could not get in but tried anyway. Succeeded too well. He made two zigs toward, the second at 3600 yards putting us seven degrees on his starboard bow. Too far from track to cross or get on and run ahead for "down the alley" shot. Tried to get around for 50 degree track stern tubes. Did not get far enough from track. When torpedo run got down to 700 yards ordered torpedoes fired with resultant unfavorable track and gyro angles. Probably should have refrained from firing. The sea had a slight chop but no appreciable swell. I considered conditions suitable for firing with depth setting as shallow as ten feet.

— page 263 —
20

| DATE  | TIME  | LAT.  | LONG.  | TYPE    | REMARKS                                                                 |
|-------|-------|-------|-------|||
| 1.   | 6/21  | 0247K | 8-42 N.| 149.18.5 E.| Task Force 11-13 ships including 3 CVs, CAs, CLs, DDs. Hospital Ship |
| 2.   | 6/23  | 1509K | 8-13.5 N.| 151-35 E.| Patrol                                                                 |
| 3.   | 6/25  | 0046K | 7-35.5 N.| 152-56 E.| Patrol                                                                 |
| 4.   | 6/26  | 0221K | 7-56 N.| 152-2.9 E.| Patrol                                                                 |
| 5.   | 6/28  | 1236K | 8-00 N.| 152-42.5 E.| Freighter and escort with plane Convoy - 4 Freighters plus Escort |
| 6.   | 6/28  | 1300K | 7-58.5 N.| 152-42.5 E.| Convoy - 4 Freighters plus Escort |
| 7.   | 6/29  | 2332K | 8-24 N.| 153-37 E.| Convoy - 4 Freighters plus Escort |
| 8.   | 7/7   | 1945L | 7-10 N.| 158-12 E.| 2 Sampans Headed for PONAPE Harbor |
| 9.   | 7/13  | 1635L | 11-12 N.| 161-50 E.| DD Fired 3 torpedoes - no hits. |
| 1.   | 6/11  | 0820M | 14-46.5 N.| 175-18 E.| Unidentified                                                             |
| 2.   | 6/28  | 1238K | 8-00 N.| 152-42.5 E.| Type 97 Seaplane                                                      |
| 3.   | 7/9   | 1238L | Over Engebi Island, Eniwetok Atoll. | Type 96 or 97 Mitsubishi Bomber |
| 4.   | 7/10  | 1150L | Landing on Engebi Is., Eniwetok atoll. | Type 96 or 97 Mitsubishi Bomber |

— page 264 —
1. SPEARFISH Seventh War Patrol covered a period of 57 days, 42 of which were spent in assigned areas and on special missions. Patrol was terminated in accordance with provisions of Operation Order. This was the first war patrol for the present Commanding Officer.

2. SPEARFISH made three attacks and expended ten torpedoes. No hits were obtained. Comments on attacks are as follows:

(a) Attack No. 1 was a night periscope attack against an aircraft carrier in a task force of eleven to fourteen enemy ships. Four torpedoes were fired from bow tubes, estimated range 850 yards. The submarine was in good position to fire under favorable conditions, but because of deficiencies in the fire control organization the target got by and SPEARFISH was forced to use unfavorable tracks and gyro angles.

SPEARFISH then turned to fire stern tubes at a second carrier. Just before reaching firing position Commanding Officer sighted a destroyer heading in with zero angle on the bow and went deep to evade. Subsequently the Commanding Officer decided that destroyer was not aware of presence of SPEARFISH but was carrying out normal movements as screen for carrier. However, by going deep the SPEARFISH lost all further opportunity for attack on the formation.

The SPEARFISH did not use SJ radar in locating or tracking the formation. The Commanding Officer considered the matter for several days and decided that use of radar might jeopardize his mission because of possibility of enemy picking up the SJ signals and avoiding SPEARFISH. Based on information available at the present time regarding direction finding on SJ signals it is not believed that the Commanding Officer's decision was a good one.

— page 266 —
8 01533
RS. No. ......
FF12-10/A16-3/(16) . SUBMARINE FORCE, PACIFIC FLEET
Serial 0981
Care of Fleet Post Office,
San Francisco, California,
July 30, 1943.

CONFIDENTIAL:
From:
To:
Subject:
Reference:

The Commander Submarine Force, Pacific Fleet.
Submarine Force, Pacific Fleet.

U.S.S. SPEARFISH (SS190) - War Patrols, renumbering of.
(a) [Consubron 2 Conf. 1tr. FC5-2/A16-3/rg, Serial 056 of July 16, 1943.]

1. The last two (sixth and seventh) war patrol reports of the U.S.S. SPEARFISH have been numbered incorrectly. Therefore, the SPEARFISH's sixth and seventh war patrols have been renumbered fifth and sixth accordingly.

C. A. LOCKWOOD, Jr.

DISTRIBUTION:
(1M-43)
List III, SS.
Special:
Pl, EN3, Z1, X3,
Consubslant,
Consubsoewespace,
Subschool, NL,
VCNO, Cinelant,
Comsopace,
Comsowespace,
CTF 42 (1 each).

R. G. LAWER,
Flag Secretary.

— page 267 —
16-3
Serial 033
SECOND ENDORSEMENT to
CO SPEARFISH report on
7th War Patrol.

CONFIDENTIAL

From:
To:
Via:

Subject:
1. ment.

* NOTE:
The numbering of this patrol report changed throughout in accordance with ComSubPac Conf.
Ltr., Serial 0981, dated July 30, 1943.

C. E. MOMSEN.

— page 268 —
11/3/43
R.C. No. 802287
FF12-10/16-3(5)/(16)
Serial 01077
CONFIDENTIAL
THIRD ENDORSEMENT to
SPECIFIC REPORT of
Seventh War Patrol.
CO. SUBSC. PATROL REPORT NO. 232
U.S.S. SPEARFISH - SEVENTH WAR PATROL.
From: The Commander Submarine Force, Pacific Fleet
To: The Commander-in-Chief, U. S. Fleet.
Via: The Commander-in-Chief, U. S. Pacific-Fleet.
Subject: U.S.S. SPEARFISH (SS190) - Report of Seventh War Patrol, (5 June to 1 August 1943).
Reference: (a) Comsubspace Conf. 1tr. FF12-10/16-3/(16), Serial 0981 dated 30 July 1943.
Enclosure: (A) Copy of subject war patrol report.
(B) Copy of Comsubdiv 44 Conf. 1st. cnd. FE5-44 Al6-3, Serial (032-B) dated 2 August 1943.
(C) Copy of ComsubspaceSubordcom Conf. 2nd. end. Al6-3, Serial 033 dated 4 August 1943.

1. The SPEARFISH seventh war patrol was the first for the new Commanding Officer. This patrol report has been renumbered in accordance with reference (a).

2. An opportunity to inflict irreparable damage upon the enemy was missed when the ship's fire control party failed to function properly. Steps will be taken to correct the deficiencies shown in this and other attacks.

3. The possibility of "D/Fing" the SJ radar is most remote. In order to make successful night attacks this radar must be used.

4. This patrol is not considered successful for Combat Insignia award.

53661 FILMED
C. A. LOCKWOOD, Jr.
Distribution and authentication on following page.

— page 269 —
1/2/43
FF12-10/16-3(5)/(16)
Serial 01077
CONFIDENTIAL

THIRD ENDORSEMENT to
SPEARFISH report of
Seventh War Patrol.

CONSUDSPAC PATROL REPORT NO. 232
U.S.S. SPEARFISH - SEVENTH WAR PATROL.

Subject: U.S.S. SPEARFISH (SS 190) - Report of Seventh War Patrol, (5 June to 1 August 1943).

DISTRIBUTION:
Cominch, VCNO (5 ea.); Cincpac (6);
Cinclant, S/M School NL, Consopuc,
Consubswespac, CTF 72, SUB.D MI,
ConsubspacSubordCom, All Squad. &
Div. Comdr. (2 ea.); Serforpac (adv.
Base Plan. Unit), Consowespac, CTF 16,
SPEARFISH (1 ea.); Consusblant (8);
Consubspac (12);
All SS Subspac (less enclosures) (1)

R. C. LAWVER,
Flag Secretary.

— page 270 —
1 August 1943:
Arrived Midway from seventh (revised no.) war patrol. Normal refit work accomplished by Submarine Base, Midway. Lieutenant Commander Richard A. Waugh, Executive Officer, detached to new construction. On 10 August Lieutenant Commander Joseph W. Williams, Jr., relieved Commander George A. Sharp as Commanding Officer. Had five day training period. Readiness for sea date 25 August.

B. NARRATIVE:
25 August 1943:
1500(Y) Underway from Midway for Eighth (revised no.) War Patrol, under air escort. Midway fathometer technician tested fathometer outside channel, fathometer still out of commission. Transferred technician to small boat.

1815(Y) Air escort departed.

1845(Y) Trim dive.

26 August - 2 September:
Enroute area, conducting daily dives and fire control drills. Zigzagging during daylight and moonlight. Omitted 27 August from calendar on crossing 180th meridian.

2 September:
0920(K) O.O.D. sighted twin-engine type 99 flying boat on starboard bow, distance 4-5 miles. Dove. No SD indication.

0952(K) All clear, surfaced.

3 September:
0841(K) Lookout sighted aircraft similar to yesterday's visitor, distance eight miles. Dove. No SD indication.

0912(K) All clear, surfaced.

1326(K) Sighted similar aircraft, nine miles. Still no SD indication. Dove.

FHL MICR 57652

— page 271 —
1354(K) All clear, surfaced.

4 September:
0731(I) Lookout sighted flying boat coming in from astern, distance 4-5 miles. Dove.
Having stayed deep for an hour under the assumption he had seen us, came back to periscope depth, all clear by periscope and SD so at
0852(I) Surfaced.
0908(I) Same flying boat coming in from the starboard bow, distance 3-4 miles. Dove.
The overcast sky was giving him the advantage so decided to remain submerged remainder of the day, making the passage through NANPO SHOTO submerged. We were 35 miles from the island of SOTU GAN (Lot's Wife), 160 miles from BONIN airfields. The air patrols have certainly become more effective since the two round trips I made through here earlier in the year.
1515(I) Sighted SOTU GAN, distance 20 miles.
Surfaced after sunset and passed SOTU GAN abeam, distance 6 miles, testing SJ radar. Maximum range 15,000 yards - very good performance.

5 September:
Made morning twilight dive, surfaced, and continued toward the area (400 miles) surface cruising.
1256(I) Sighted flying boat on starboard quarter, distance 4-5 miles. Dove. Decided to remain submerged remainder of day. This was our sixth force-down. Rounded torpedoes, maintaining periscope patrol.

6 September:
Heading up the 160 line from BUNGO SUIDO, commenced submerged daylight, night surface patrolling.
2230(I) Entered the area after eleven days enroute. Having to skirt the restricted area of Marcus added about 600 miles to the passage.

7 September:
Patrolling intersection of BUNGO SUIDO - PALAU and VAN DIEMEN - TOKYO routes. Avoided three unlighted small boats at night.

— page 272 —
8 September:
Same general location. Sighted small boat and east coast of KYUSHU during day.

: 9 September:
Same general location. Just before time for morning dive sound reported two torpedoes fired at us from 050° relative. Turned toward and dove. Nothing further sighted or heard. The sound man, an experienced 7th patrol operator, later described the noises as a large rush of air followed immediately by high whining noise of varying intensity, followed 10 seconds later by a similar set of noises.

0645(I) Sighted two Chidori torpedo boats, in line of bearing, conducting echo ranging search on course 110°(T), speed 9 knots. Avoided at periscope depth. They passed right over our morning diving spot on a course definitely not a traffic route. Assumed the reverse of their course hoping they were clearing the way for something, but no luck. These two contacts, the first possibly doubtful, seemed to indicate that our presence was known, in spite of the fact I was quite sure we hadn't been sighted. Will shift scene of operations tonight and hereafter keep shifting at least slightly every day. At noon sighted southwest coast of SHIKOKU.

10 September:
Patrolling north and south off east coast of KYUSHU. Avoided one small boat about 0200 - the SJ does not seem to be working properly.

0652(I) Sighted Chidori torpedo boat patrolling on northerly course. Avoided at periscope depth.

1305(I) Sighted smoke to westward, first thought to be from the coast, as the haze which had prevailed all morning began to lift.

1311(I) Sighted many tops of ship masts, began approach. Convoy developed into seven good-sized freighters, in two columns, escorted on starboard bow by FUBUKI DD, port bow and quarter by CHIDORI TBS. Convoy base course 175°(T), zigzagging, speed made good 7 knots. Converged at standard speed, 100 feet between 15-minutes observations, for one hour and forty minutes, but best position was 6000 yards, 120 track, on trailing ship. During approach heard distant depth charging, echo ranging, and sighted air escort. Commenced trailing submerged at 4 knots.

— page 273 —
1931(I) Surfaced and commenced chase - three-quarter moon, very bright, due to set at 0206.

: 2132(I) Sighted convoy dead ahead, estimated 14,000 yards, crossing to port; they had made an evening change of course to about 150°(T). Commenced end-around run. No indication on SJ radar, therefore planned submerged attack shortly before moonset with convoy in moon streak at firing. Hoped to get up again for dark night or daylight attack.

: 11 September:

: 0043(I) Submerged at estimated 12,000 yards, 10° on port bow of convoy, ships getting distinct. Stayed at radar depth until generated range reached 9000, but still no indications. Secured SJ, went to periscope depth as the range was not certain and surface visibility excellent. Shortly after ships became distinct in the periscope I thought we were almost dead ahead of the port column, so commenced a slow swing out to their port flank planning on initial stern shots. We were about half-way through our swing when I saw that instead of being ahead of the port column we were ahead of the starboard column and our maneuver was putting us in a position of athwartships to, and almost exactly between, the two columns. The destroyer was patrolling back and forth in front of the convoy and twice presented zero angle on the bow, but each time it proved to be his normal patrol swing. Passed him abeam at about 1200 yards. Settled on course 070°(T), 80-100 tracks, and down the alley they came. We were in such beautiful position decided to shoot two at each of four ships; commenced firing at

: 0147(I) with bow tubes 1 and 2 at the leading port ship as he came up on our port bow. Shifted set-up astern and at

: 0148(I) fired stern tubes 5 and 6 at the leading starboard ship just after he crossed our stern.

: 0149(I) Fired stern tubes 7 and 8 at the second starboard ship as he came up on our port quarter. Shifted set-up ahead and at

: 0151(I) fired bow tubes 3 and 4 at the second port ship as he came up on our port bow.

Total firing time for eight torpedoes fired by constant bearing at foremast and mainmast of four ships was 4 minutes and 37 seconds. Of the eight fired

— page 274 —
0154(I) The first of a series of indiscriminate depth charges, about twelve.

: 0237(I) First deliberate attack by one of three escorts, who were working as a team alternating echo ranging and listening. Four charges not too close.

: 0320(I) Second deliberate attack that was a beauty; six charges at about 20-second intervals, each of which shook the ship with terrific force. The old-timers on the ship later admitted that these were all closer than any ever experienced.

: 0630(I) Having tried to shake them by sound bearings with only partial success, came up to periscope depth. Shortly before reaching periscope depth, I raised the periscope to look for air or oil leaks and found that we were leaving a continuous very large stream of air bubbles astern.

: 0645(I) Periscope depth. At about 6000 yards, observed one freighter stopped, down by the stern about 8 feet, with the FUBUKI destroyer patrolling between us and the freighter. Although I cannot positively identify this ship as #2 of the starboard column (target #3), I think it was. He was not extensively damaged, looking as though his stern section had a serious leak, possibly caused by a dud. Certainly he had not suffered two torpedo explosions. Therefore, I believe the ship hit with two torpedoes had probably sunk for he was nowhere in the vicinity of the stopped ship.

— page 275 —
0750(I) Commenced reload, trimming ship, pumping bilges, ventilating and giving all hands a short rest before going in. Checked over air systems to try and discover leak.

: 0849(I) Heard heavy underwater explosion not very close, thought it might be the freighter blowing up. Started up to periscope depth, but on the way up took two aircraft bombs or depth charges fairly close. Two more of the same on the way back down. Apparently we were still showing our trail so gave up the idea of tangling with the destroyer during daylight today.

: 1248(I) Heard faint echo ranging, came up to periscope depth and sighted Chidori torpedo boat. Commenced maneuvering to avoid but he kept closing so went back down to 250 feet and silent running. He stayed with us, sometimes seeming to have contact, sometimes searching until we thought he had faded out at

: 1811(I) Started up to periscope depth. While passing 100 feet his screws speeded up, echo ranging became very loud and coming in. Apparently he was just waiting for us, so went back down. Again he stayed around in spite of our evasive tactics and silent running. After sunset he either faded out or stopped echo ranging. Decided to run silent for another hour to determine whether or not he was merely waiting or had left. Had just about decided we had finally left him when at

: 2010(I) he started up his echo search again, fairly close. The next two hours he spent in the general vicinity but I think we had pulled away sufficiently, during the hour after sunset while he was waiting for us to surface, that he had lost definite contact. His echo ranging got weaker, could not see him through the periscope, so at

: 2230(I) surfaced at battle stations with tubes all ready - he was not in sight in the moonlight. We had been submerged for 22 hours, the battery was about flat, and the very foul air, in spite of oxygen replenishment, had visibly affected all hands. Neither the ship nor personnel were ready to search for and tackle the escorted damaged freighter so decided to chase the convoy to the south. It will give us about eighteen hours to recover our breath, check for leaks, and will take us and our possible leaks away from the coast,

— page 276 —
12 September:
Running on four engines, chasing convoy; should sight them tonight. Had morning twilight dive and at 1230(I) a short dive for SD contact at 15 miles. Surfaced when all clear and resumed chase. Nothing sighted during the night.

: 13 September:
Running on the surface, on a search curve, covering 150° of base course and one knot of speed.

: 1100(I) Dove for visual aircraft contact, seven miles.

: 1130(I) At 55 feet, raised SD antennae, made contact at three miles, went down again.

: 1245(I) All clear by periscope and SD and, feeling that we were getting close, surfaced and resumed search. However, nothing was sighted by sunset so reversed course and headed back for the area. Sent contact report.

: 14 September:
Returning to the area, running on the surface at two engine speed.

: 1134(I) Dove for visual aircraft contact, 6-8 miles. Remained submerged for remainder of day to continue check for leaks and work on other minor depth charge damage.

: 15 September:
Submerged daylight patrol up the 150° line from Bungo. Reentered the area during the night.

: 16 September:
Patrolling south of ASHIZURI SAI. Avoided small boat shortly after sunrise.

: 1437(I) Sighted faint smoke to westward, which commenced drawing south, came to normal approach course. Smoke developed into another seven good-sized freighter, three escort convoy! It was soon evident that we could not get in on this one during the day either, so commenced trailing submerged. Convoy passed us abeam at 12,000 yards.

: 1938(I) Surfaced and commenced chase.

— page 277 —
2010(I) Sighted smoke of convoy ahead, estimated range 20,000 yards. The bright moonlight makes visibility almost like day. Commenced trailing to determine new base course, then started end-around run to westward to keep convoy in moon. As we worked around their starboard beam they continued to change their base course to the left at about hourly intervals and I was beginning to believe that ASHIZURI SAKI radar was maneuvering away from us, when at about.

: 0245(I) The plot indicated they had zigged right for us.

: 0306(I) Dove at estimated range 12,000 yards ahead. Had smoke in sight by periscope shortly after diving but it disappeared in some poor visibility spots that came up. Generated range came down to 2000, still no convoy. Assumed his base course.

: 0445(I) Sighted convoy coming up from port quarter. We had apparently badly overestimated the range. Commenced the approach, but in the early morning light it was not until too late that I realized they were giving us a big constant helm zig with a base course well to the left of what we thought. Shifted targets successively from leading ship to rear ship but best range at

: 0715(I) was 3500 yards on the trailing ship, a nice big 7000 tonner. Didn't feel too happy about this approach for we should have gotten into much better position. Plotted their new base course as they opened out over the horizon. Checked over torpedoes, found one with flooded after body and gyro.

: 1200(I) The range having opened sufficiently, commenced surfacing procedure but found SD radar out of commission. Decided to let technician try to fix it for a short while. A fortunate decision, for at

: 1305(I) sighted a bomber through the periscope.

: 1404(I) SD apparently out of commission for a long while, decided it was now or never, so surfaced and commenced chase. We were closing nicely, maintaining high periscope watch when suddenly a trailing escort seemed to pop right over the horizon.

: 1648(I) Love in a luxury to avoid icing sighted.

: 1834(I) Surfaced while it was still light and resumed chase. By 2230 we should either have joined formation with them or covered at least 45 degrees change of base course at sunset. Decided to search to the westward, and at

— page 278 —
2320(I) Sighted their one and only, but fatal, mistake - the familiar smoke. 'Ve were about on their beam - commenced running ahead. Again they kept changing their base course away from us but the rejuvenated SJ, coached on, picked them up at 21,000 yards, and we had them. Thought we saw a green flare (submarine to port (?)!) shortly thereafter but discounted it.

18 September: Dove 12,000 yards ahead of them and started in. On diving the engine room reported: 4 outboard exhaust valve not holding. The inboard valve, contrary to all past history, fortunately was tight. It is a spring loaded valve and there was uncertainty as to its holding under depth charge, but continued the approach.

0443(I) fired the four bow tubes at the big fellow on an 80 track, 1800 yards. Swung hard right for stern shots on the ships ahead of him. 'Was most pleasantly surprised to see them zig left, giving us a beautiful shot at #3 port ship.

0445(I) Fired stern tubes 5, 6, and 7 at this ship on 1100 track, 900 yards.

Although the torpedo explosions were barely audible in the conning tower, sound commenced, indicating hits (eventually five in all), so took a leak at the big fellow - his back was broken in the middle, his midships section was awash, bow and stern up at 20 degrees, and the entire center section was covered with a haze of smoke. Sound reported two hits at 20 degrees, and the torpedo and sonar were enveloped in a similar haze of smoke. Having saved torpedo #8 for developments, picked up #3 starboard ship at a range of 1500 yards, 1/2 port angle on bow, and at

0448(I) fired the eighth torpedo right at his middle. Sound track the torpedo right to his screws, heard it hit, and heard his screws slow and stop. I did not see this target after firing, but confirmed a sweep around, found one of the escorts on our beam at about 500 yards, ordered deep depth and rigged for depth charge.

In the next ten minutes there were about fifteen depth charges, none very close. An hour later came two single charges, closer than the others but still strictly amateurish compared to our experience of the 11th. 'We were deep in a 120 negative temperature gradient, which I am certain accounts for their

— page 279 —
0800(I) Came up to periscope depth.

0845(I) All clear by periscope. Commenced reload. Reversed course and headed back for the scene to see if there were any cripples. Searched the area by periscope thoroughly for the next five hours but nothing sighted. By this time the seas had picked up considerably so was not surprised that we saw no floating minor wreckage.

Am quite certain that we deleted three good ships from a convoy that was using very good submarine evasive tactics, with two hits in the big fellow, two in #2 target (estimated 5500-ton AK) and a fortunate one hit from one shot at #3 target (also estimated 5500-ton AK).

Decided against further convoy chase for the following reasons:

(a) They will most surely have air escort for the remainder of this day, and with our SD (which gave us two warnings on our last chase) out of commission, I did not feel that surfacing during the daytime at the scene of the attack was worth the chance we would take. We have but three good torpedoes left.

(b) #4 engine was secured until we could fix the exhaust valve topside. Without the engine, starting the chase at dark, we could not catch them until the following noon, and I am quite sure we would be looking for a needle in the haystack by then for their previous base courses have lead anywhere from the BONINS to the PHILLIPINES.

Spent the night running with the seas, engineers on deck overhauling #4 exhaust valve. Had it back in commission by daylight.

19 September:

Maintaining submerged patrol returning to the area. By noon the seas became so heavy it was impossible to maintain periscope depth. Surfaced at dark in a typhoon - mountainous seas. If any of those three ships are still float they are having some time of it in this weather.

— page 280 —
20 September:
Having completed the battery charge, occasionally taking water down the hatch and inductions, submerged at 0115(I) to ride out the storm. Spent the day at 170 feet rolling as much as 100 at times. Surfaced at dark with the seas about the same, but wind shifts indicate the center has gone by, probably right over us during the day.

: 21 September:
Submerged at twilight, broached on our first look at daylight. By afternoon we were able to look at intervals. Surfaced, with the seas somewhat calmer, at dark; headed back for the area at two engine speed. Reentered the area during the night.

: 22 September:
Patrolling traffic routes in southern part of the area. Sighted one lighted small craft at night.

: 23 September:
Patrolling off TOSAKI HANA. Sighted two small craft during the day.

: 24 September:
Patrolling south of AZHIZURI SAKI. Avoided small craft at 0332(I).

: 25 September:
Patrolling off east coast of KYUSHU.

: 0430(I) Radar contact on small craft, 3300 yards, who was alert but definitely non-belligerent - he gave out smoke, turned away, and ran about one-half minute after our contact. Lost contact at 4000 yards.

: 0900-1230(I) Maneuvering to avoid sampan patrol who quite thoroughly searched the area of this morning's contact.

: 1700-1830(I) Had Chidori torpedo boat in sight at about 8 miles who also quite thoroughly searched the same area. On surfacing, cleared the vicinity, making speed and course changes. This making small craft contacts almost every morning between 0200 and 0900 is beginning to look suspicious.

— page 281 —
26 September:
Dove in eastern part of the area, made no contacts
entire day. Maybe our maneuvering last night threw
them off the trail - if they are tracking us.

: 27 September:
Patrolling BUNGO - PALAU - VAN DIEMAN - TOKYO junction. Avoided one small craft at 0000 and one Chidori at 0257. Chidori was stopping and listening at intervals, patrolling at 5 knots. Initial contact on Chidori by radar at 5500 yards, held to 6500 with 900 angle on the bow.

: 0755(I) Sighted smoke to westward drawing north. Came to normal approach, thinking finally we might shoot our last torpedoes, but never sighted smoke again.

: 28 September:
Patrolling southeast corner of the area.

: 29 September:
Patrolling back and forth across line from PALAU to BUNGO in southeast corner of the area.

: 0044(I) SJ radar contact bearing 0360 (T), range 19,500 yards! Commenced tracking, target zigzagging on northwestly base course, speed 14 knots.

: 0050(I) Ahead standard speed (15-17) knots, came to normal approach, commenced closing range slowly. Radar targets developed into two tremendous pips, with two or three smaller (escort) pips. Sighted target group dimly at about 10,000 yards; there were two very large passenger liners, with a large destroyer or cruiser ahead, a smaller destroyer astern, and a Chidori or small destroyer apparently patrolling between the two large ships which were in column.

: 0202(I) Going in on course 3300(T), 15 knots on four engines, ships 10 degrees on starboard bow, 90 port track, range 4800 closing by leaps and bounds, tubes ready, firing point coming up rapidly, set-up checking perfectly - they zigged away giving us a 180 angle on the bow. The trailing destroyer headed in our direction - thought our phosphorescent wake had been sighted (we could see theirs). Started turn away but came back immediately thereafter when the destroyer's maneuver turned out to be a false alarm - he was adjusting station. Put them on the starboard bow-to.

— page 282 —
0219(I) range 5100 yards, 113 port track, 90 right gyro, set-up checking, another right zig due in a few minutes - feeling that it was the best position we would get into considering (1) small speed differential; (2) two hours until twilight; and (3) our phosphorous wake - - fired the four remaining torpedoes in low power with a small spread at the trailing large ship. Turned away and opened range at full speed.

: 0231(I) Heard three to five (opinion varies) explosions at about four second intervals. They were, in my estimation, in order of probability: (1) depth charges; (2) end of run explosions; or (3) hits on leading ship(s) after a right zig.

A rehash of the attack shows that if at about 0130 I had not been so anxious to go in, but had continued parallel with them to gain further distance ahead, we would have been in an attack position where the big zig away would not have left us in such a poor position. However, at 0219 I felt then and feel now that it was most probably then or not at all, and considering the obvious value of the targets I considered firing obligatory.

Radar indicated the formation made a radical change of course, speed, or formation about 10-12 minutes after firing, indicating they saw torpedo wakes or there were hits.

Set course for Midway, all torpedoes expended, clearing the vicinity on four engines. Dove at twilight to avoid probable search.

30 September -
3 October:

Enroute Midway.

4 October:

Enroute Midway.

1205(L) J.O.O.D. aft sighted aircraft on starboard quarter, 6-8 miles. Dove. No SD indication.

— page 283 —
1208(L) Leveled off at 200 feet. slowed down, thinking this was like the other nine bombless dives we had made; three depth charges exploded overhead. No damage. We were 581 miles, bearing 026°(T), from MARCUS ISLAND. Changed course to south for an hour then east for an hour.

: 1417(L) All clear, surfaced, and resumed passage.

5-7 October:
- Enroute Midway. Conducted six hour battery discharge for determination of capacity (first since battery was overhauled). Capacity 100.6%. Repeated October 7 on crossing 180th meridian.

7 October:
- 1359(Y) Arrived Midway.

8 October:
- 0915(Y) Underway for Pearl Harbor.

9-12 October:
- Enroute Pearl Harbor. At 0600(X), 11 October, sighted one destroyer and tanker on parallel course, distance 15 miles. Sent contact report and received word that ships were friendly.

12 October:
- 1145(W) Arrived Pearl Harbor, patrol completed.

— page 284 —
(C) WEATHER:
Enroute to station from midway weather was generally fair and mild.

In the area of the BUNGO SUIDO the same weather held good except for the typhoon of September 19-21. Normally calm seas during the day and phosphorescent water at night made extremely careful patrolling necessary.

(D) TIDAL INFORMATION:
The reports of CUTTLEFISH and TRIGGER concerning currents in the BUNGO SUIDO were generally verified, average strength of the KUROSHIO was about 1.8 knots, set 065°(T) in the center, 015°(T) in southwest corner, and an easterly set in the southeast corner which has not been previously reported.

(E) NAVIGATIONAL AIDS:
None sighted, although we were within the normal range of TOSAKI HANA and ASHIZURI SAKI.

— page 287 —
U.S.S. SPEARFISH - Eighth War Patrol

G)  AIRCRAFT CONTACTS:

| TIME & DATE | LAT(N) LONG(E) | TYPE(S) | INITIAL RANGE | EST. COURSE | HOW CONTACT | REMARKS | 0920(K)   | 33-06         | KAWANISHI-99 | 5 mi.       | 090        | S. Day    | Dove   |
| 0841(K)   | 31-42         | KAWANISHI-99 | 8 mi.       | 090        | S. Day    | Dove   |
| 1326(I)   | 31-20         | KAWANISHI-99 | 9 mi.       | 130        | S. Day    | Dove   |
| 0731(I)   | 29-56         | KAWANISHI-99 | 4 mi.       | 270        | S. Day    | Dove   |
| 0908(I)   | 29-56         | KAWANISHI-99 | 3 mi.       | 120        | S. Day    | Dove   |
| 1256(I)   | 29-47         | KAWANISHI-99 | 4 mi.       | 020        | S. Day    | Dove   |
| 9/5/43    | 32-13         | KAWANISHI-99 | 4 mi.       | 020        | S. Day    | Dove   |
| 9/10/43   | 132-00        | KAWANISHI-99 | 4 mi.       | 020        | S. Day    | Dove   |
| 1212(I)   | 28-50         | ?         | 15 mi.       | ?          | Radar     | Dove   |
| 9/12/43   | 133-07        | ?         | 6-8 mi.      | ?          | S. Day    | Dove   |
| 1100(I)   | 24-28         | ?         | 6-8 mi.      | ?          | S. Day    | Dove   |
| 9/13/43   | 133-53        | ?         | 2 mi.        | ?          | Radar     | Same plane(?) |
| 1141(I)   | 24-28         | ?         | 2 mi.        | ?          | Radar     | Dove   |
| 9/13/43   | 133-53        | ?         | 6-8 mi.      | ?          | S. Day    | Dove   |
| 1134(I)   | 27-16         | ?         | 6-8 mi.      | ?          | S. Day    | Dove   |
| 9/14/43   | 134-02        | ?         | 5 mi.        | ?          | P. Day    | -      |
| 1305(I)   | 30-42         | Bomber     | 5 mi.       | ?          | P. Day    | -      |
| 9/17/43   | 134-38        | ?         | 6-8 mi.      | ?          | S. Lay    | Dove. Received 3 depth charges while at 2001. No damage. |

- 17 -

— page 288 —
0147(I)
0151(I)

USS SPEARFISH
TORPEDO ATTACK REPORT FORM

DATE: 11 September 1943.
LAT: 30°56'N.
LONG: 132°47'E.

TARGET DATA: DAMAGE INFLICTED

DESCRIPTION:
Seven medium-sized freighter convoy, with one destroyer, two torpedo boat, escorts. Initial contact by day periscope. Visibility excellent during night approach (3/4 moon).

SHIPS DAMAGED
or
PROBABLY SUNK:

#1 - One AK, similar BOSTON MARU, 5425-5477 tons.
#2 - One AK, type unidentified - approximately same length (400'), tonnage estimated at 5500.

DAMAGE DETERMINED BY:

#1 - One timed hit or dud. Later saw ship dead in water, down by stern about 8 feet.
#2 - Two timed hits, ship not in sight five hours later. Probably sunk.

Target Draft - 20 feet
Course - 150°(T)
Speed - 7 knots
Range - #1 - 600
Range - #2 - 1400

OWN SHIP DATA

Speed - 2.6 knots
Course - 070°(T)
Depth - 65 feet
Angle - 0

FIRE CONTROL AND TORPEDO DATA

TYPE ATTACK:
Night submerged attack in bright moonlight. Fired from between two columns of ships, nearly straight bow and stern shots, two torpedoes at foremost and mainmast of each of four ships by constant bearing method.

- 18 -

— page 289 —
1. TARGET #1
: 2. TARGET #2
: 3. TARGET #3
: 4. TARGET #4

| Target | #1 | #2 | #5 | #6 | #7 | #8 | #3 | #4 |
||----|----|----|----|----|----|----|----|
| Tube Fired | 83S | 80S | 90P | 89P | 73P | 75P | 100S | 101S |
| Track Angle | 357 | 356 | 177 | 176 | 192 | 137 | 036 | 007 |
| Gyro Angle | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| Depth Set | H | H | H | H | H | H | H | H |
| Power | Miss: | Miss: | Miss: | Miss: | Miss: | Hit: | Hit: | Hit: |
| Hit or Miss | No | No | No | No | No | No | No | No |
| Erratic | 14-3A: | 14-3A: | 14-3A: | 14-3A: | 14-3A: | 14-3A: | 14-3A: | 14-3A: |
| Mk. Torpedo | 23680: | 23016: | 23283: | 23859: | 23619: | 22203: | 23027: | 23010: |
| Serial No. | 6-1 | 6-1 | 6-1 | 6-1 | 6-1 | 6-1 | 6-1 | 6-1 |
| Mk. Exploder | 10911: | 5986: | 10323: | 11257: | 5096: | 3063: | 10738: | 10729: |
| Serial No. | 3657: | 5396: | 2622: | 1488: | 2607: | 5910: | 3921: | 6139: |
| Actuation Set | 10 sec. | 10 sec. | 10 sec. | 15 sec. | 15 sec. | 15 sec. | 15 sec. | 15 sec. |
| Actuation Actual | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 |
| Mk. Warhead | 3657: | 5396: | 2622: | 1488: | 2607: | 5910: | 3921: | 6139: |
| Serial No. | 10 sec. | 10 sec. | 10 sec. | 15 sec. | 15 sec. | 15 sec. | 15 sec. | 15 sec. |
| Explosive | 10 sec. | 10 sec. | 10 sec. | 15 sec. | 15 sec. | 15 sec. | 15 sec. | 15 sec. |
| Firing Interval | 10 sec. | 10 sec. | 10 sec. | 15 sec. | 15 sec. | 15 sec. | 15 sec. | 15 sec. |
| Type Spread | - | - | - | - | - | - | - | - |
| Sea Condition | - | - | - | - | - | - | - | - |
| Overhaul Activ. | - | - | - | - | - | - | - | - |

REMARKS:
(1) Tubes #1 and #2 missed due to control error - spreads were applied when firing was going by constant bearing.
(2) Tubes #5 and #6 apparently missed - may have been due to too short run to arm or failure to come up to depth.
(3) One hit from #7 and #8, either a dud or low order explosion.
(4) Two hits from #3 and #4, timed for right range and firing interval.

— page 290 —
0443(I)
0448(I)

USS SPEARFISH
TIME: 0443(I)
0448(I)

TARGET DATA - DAMAGE INITIATED:
Seven medium-sized freighter convoy, with three escorts. Initial contact by periscope. Visibility excellent during night attack (3/4 moon).

SHIP SUNK:
#1 - One 7000-ton AK, similar to LISBON MARU, page 227, ONI 208-J.

SHIPS DAMAGED or PROBABLY SULK:
#2 & #3 - Two 5500-ton AXs, types unidentified, estimated 400' long and 5500 ton displacement.

DAMAGE DETERMINED BY:
#1 - Sound reported two hits. About one minute later saw, by periscope, ship sinking with back broken, center section awash, bow and stern up at about 200', and heavy black smoke issuing from entire center section. Ship not in vicinity three hours later.

#2 - Sound reported two hits. About one-half minute later saw ship with heavy black smoke issuing from entire center section.

#3 - Sound tracked torpedo to target, heard torpedo hit, heard target's screws slow and stop. I did not have a chance to look at this target after firing due to A/S measures.

TARGET - #1 #2 #3
Target Draft: 27' 20' 20'
Course: 2400(T) 2000(T) 2000(T)
Speed: 8 knots 8 knots 8 knots
Range: 2000 900 1500

O/N SHIP DATA:
Speed: 3.0 4.0 4.0
Course: 3300(T) 045-0550(T) 0750(T)
Depth: 65 ft. 65 ft. 65 ft.
Angle: 0 0 0

FIRE CONTROL DATA:
TYPE ATTACK: Night attack, submerged, in bright moonlight. Fired by constant bearing method. Four forward torpedoes at major target, swung ship and fired 3 torpedoes from stern at #2 target, followed by last stern torpedo at #3 target.

— page 292 —
0219(I) 29 September 1944 1310 27' N. 1330 20' E.

TARGET DATA - DAMAGE INFLICTED

DESCRIPTION:
Two very large ships resembling 12,000 ton passenger liners, escorted by one large destroyer, or cruiser, and two smaller destroyers. Visibility - dark overcoast moonless night; sighted dim outline of ships at 10,000 yards. Ships still not distinct at 4500 yards. Initial contact by SJ radar at 19,500 yards.

SHIPS DAMAGED:
Results uncertain.

DAMAGE DETERMINED BY:
Heard three to five explosions about 10 minutes after firing (low power shots at 5800 yard run). Could have been depth charges, end of run explosions, or hits after a zig away.

Target Draft: 20 feet
Course: 262°(T)
Speed: 14 knots
Range: 5100 yds.

O'IN SHIP DATA
Speed: 15.5 knots
Course: 320°(T)
Depth: Surface
Angle: 0

FIRE CONTROL AND TORPEDO DATA

TYPE ATTACK:
Night surface, radar and visual. Check bearings from T.B.T. during firing. Spread by offset dials. Large zig away during attack phase 17 minutes previous accounts for large range.

- 22 -

— page 294 —
1) MINES:
A sampan, painted a bright red, was encountered in Lat. 31°-55' N., Long. 131°-45' E., lying to or anchored on the 100 fathom curve off TOSAKI HANA. This was the only sampan so painted and it may be that he was serving as a warning vessel for a defensive mine field.

(J) ANTI-SUBMARINE MEASURES AND EVASION TACTICS:
As reported by other submarines, the area is well patrolled, particularly at night near the intersection of the BUNGO 160 line and the VAN DIEMEN - TOKYO route. Patrolling is done by sampans and Chidori torpedo boats, mainly at night. We ran into at least one unlighted small craft nearly every morning between the hours of 0200 and 0900, in fact so consistently that the possibility exists that the submarine may be under a tracking problem from the beach. The patrols and Chidori's do not appear to have efficient locating equipment, however.

The possibility exists that two torpedoes were fired at SFEARFISH, near the above intersection, at about 0430(I), 9 September; visibility was good at the time. Sound reported the torpedoes; their wakes, or source, were not sighted from the bridge. An hour after diving immediately thereafter, sighted two Chidori's conducting echo ranging search. They passed right through our diving spot.

The depth charge attack on 11 September, following the first attack, was a nice piece of work on the part of the three convoy escorts (one DD and two TBs). The last barrage of six, two hours after we had fired at the convoy, was the closest yet experienced by SFEARFISH during the war. The escorts had alternated echo ranging and listening. A Chidori, called out to search the area, kept us down by his proximity until 2230(I). He stopped his echo ranging for one hour after dark, apparently waiting to catch us surfacing in the moonlight. When we didn't surface, he started up his search again and finally drew off sufficiently to enable us to surface, after 22 hours submerged.

The depth charge attack after the second attack was definitely second rate, conducted by the convoy escorts, two converted trawlers and one small merchantman equipped as an AS vessel. A 12-degree negative temperature gradient probably helped us out considerably.

Approaches to the area are well patrolled by aircraft. We made nine quick dives for aircraft contacts.

— page 295 —
1. DETACHMENT OF #2 MAIN ENGINE - - 4 September 1943.
A knock was heard in #2 engine, stopped engine; inspection showed that the outboard connection rod bolt nut had backed off allowing the bearing to open approximately 1/8". On disassembly the connecting rod bolt and the bearing shell were found slightly sprung.

This failure was caused by improper assembly of unit during major overhaul. The slot in the head of the connecting rod bolt (piece 2) was not properly aligned with lockscrew (pc. 17). Then the bolt was tightened it partially sheared lockscrew (pc 17). Engine vibration further sheared this piece allowing clearance which allowed the bolt to work and shear cotter pin in nut.

Parts replaced were: pc. 2, 3, 4, 9, and 11 on Buprint No. SS188-541-06; HOR print N1502B.

2. DETACHMENT OF OUTBOARD EXHAUST VALVE:
On a dive, 18 September 1943, #3 outboard exhaust valve did not hold. The inboard valve held. On inspection it was found that the bolts, which hold the valve seat sprinkling ring, had vibrated loose and fallen on top of valve gasket while valve was open. When valve was closed a bolt was caught between valve and seat, holding valve off the seat. It is the opinion of the Commanding Officer that those bolts should be secured by spot welding to avoid future derangements of this nature.

Reference: N.Y.M.I. print #64541.

(B) HULL:
None.
The ability of the ship to withstand the severe depth charging of 11 September, without major damage, is a tribute to the improvements made in this direction since the start of the war.

— page 296 —
1. ORDNANCE:
   A broken stud in the gyro housing of torpedo #23423 caused flooding of the gyro pot and after body. Gyro was removed, cleaned, and oiled, and the torpedo used as a wing torpedo of the spread on the last firing.

: 2. COMMUNICATIONS:
   The fathometer has not been in commission for the last two patrols. Submarine Base, Midway, was unable to get in in commission during the last refit.

RECOMMENDATIONS:
1. Periscope radar.
2. P.P.I. for the SJ radar.
3. A dead reckoning tracer machine, similar to the small set furnished surface vessels. Trying to maintain a manual plot of own ship's track is at present a crude and inaccurate operation, giving poor data on target course and speed.
4. Increase of the range limits on the TDC from its present maximum of 8000 yards to at least 25,000 yards, and possibly greater with the new improved radar. Having to halve or quarter the range, and enter own speed manually halved or quartered, makes TDC tracking above 8000 yards a very inaccurate and slow process.
5. An improved bridge bearing transmitter which will give bearings comparable in accuracy to those of the periscope. A completely mechanical one, its shaft extended directly below to a bearing circle in the conning tower, a pressure-proof night glass fitted to the upper extension with a perfect alignment, would seem a very simple and accurate solution to this problem.

It is my firm belief that the installation of these five relatively simple improvements in our submarines would increase the percentage of hits by at least twenty-five percent.

— page 297 —
1. RADIO:
Radio reception of NPM fox schedules offered no difficulties, 4115 kcs. seemed the best frequency.

Considerable jamming was encountered on 8470 kcs. When attempting to clear our two messages while near the area. The messages were finally cleared through VHM in Australia.

(M) RADAR
The SJ radar again proved its inestimable value. The initial contact on the convoy of 29 September of 19, 500 yards is considered outstanding materiel and personnel performance. Installation of a tuning cavity is of prime importance, for on many nights the flat sea prevented tuning on wave return. The SJ shaft needs realignment; it is much too stiff in hand training.

* The SD radar again proved its reliability. We made eight sight contacts without the SD giving indication - there were two SD contacts not verified by sight prior to diving. A major casualty occurred on the SD when the blower motor stopped, causing:
   (a) Two (2) 8014A transmitter tubes burned out.
   (b) Damaged a filament ooil (wiring shorted).
   (c) Burned silver plating on tube holders.

A new filament coil was made using copper tubing, however, reliable operation of the SD is at present questionable.

(N) SOUND GEAR SOUND CONDITIONS:
In general, sound conditions in the area of BUNGO SUIDO were poor. Screws were not usually heard over 2500 yards. The sound equipment is in good condition.

(O) DENSITY LAYERS:
Each morning, in the area of BUNGO SUIDO, a dive to 200 feet was made to determine the nature of density layer and to obtain data on a deep trim for the days' operation locality. Generally, in the KUROSHIO, a gradual negative temperature gradient of two to six degrees from 100 to 200 feet was encountered. This gradient seemed to offer little protection during the first depth charging.

On the second attack, about Lat. 30°N., Long. 135°E. (120 miles southeast of the area), a very rapid negative temperature gradient of 120 from 100 to 200 feet seemed to offer a safe hiding from the escorts for they never seemed to gain contact. It is of interest to note in this latter case that while at periscope depth five torpedo hits (damage later verified by periscope) were barely audible throughout the ship.

— page 298 —
1. PERSONNEL:
The officer and enlisted personnel situation is satisfactory, as is the state of training. The performance of duty of the crew and officers, particularly during the 22-hour enforced submergence when the prospects of an unmolested surfacing were in doubt until the last moment, was in accordance with the highest traditions of our submarine service.

The outstanding work of Lieutenant G. V. FORBES, Jr., U.S.N., on the TDC is considered worthy of special mention. In the first two attacks, four separate firing set-ups during the first attack, and three during the second attack, were rapidly and accurately entered without hesitation or confusion.

The diving officer, Lieutenant P. F. PIERCE, U.S.N.R., did an excellent job during each of these attacks, maintaining the desired depths at all times, including the unusually long firing periods while all eight tubes were being fired.

(R) MILES STEAMED - FUEL USED:
Base to area - - 3070 mi. 26,400 gals.
In area - - - - 3000 mi. 26,200 gals.
Area to base - - 3860 mi. 38,000 gals.
(Pearl)

(S) DURATION:
Days enroute to area - - 11
Days in area - - - - 22
Days enroute to base - - 13
Days submerged - - - - 25

(T) FACTORS OF ENDURANCE REMAINING:
Torpedoes 9,000
Fuc1 20 days
Provisions 10 days
Personnel Factor 10 days
Limiting factor this patrol: Expenditure of all torpedoes.

(U) REMARKS:
None.

J. W. LILLING, Jr.,
Lieutenant Commander, USN,
Commanding.

— page 299 —
1. FIRST ENDORSEMENT TO USS SPEARFISH 8th War Patrol dated 10/12/43
: 2. The Commander Submarine Division TENTY-ONE. The Commander Submarine Force, Pacific Fleet. The Commander Submarine Squadron TIO.
: 3. SUBJECT: U.S.S. SPEARFISH Eighth War Patrol - contents on.
: 4. 1. FORWARDED.
: 5. 2. The Eighth War Patrol of the SPEARFISH covered a period of forty-six days, twenty-two of which were spent in the assigned area. Patrol was terminated by expenditure of torpedoes. Three worth while contacts were made during this period and all were attacked, the first two most successfully.
: 6. 3. ATTACKS.
: 7. (a) The attack on September 10 and 11, was most aggressive and the decision not to attack on the afternoon of the 10th was sound. The firing position attained was any subcarrier's dream, and it was unfortunate the SPEARFISH didn't have ten tubes. The commanding officer's explanation as to the results and performance of the eight torpedoes fired needs no amplification. It is believed that the evidence is sufficient to credit one sinking and one damaged on this attack.
: 8. (b) The attack on September 16, 17 and 18 was most tenacious, aggressive and extremely well conducted. The "doggedness" and spirit of the new commanding officer was well rewarded after this 36-hour chase, with five hits out of eight shots fired, and from the report it would appear that there were two definite sinkings and one damaged.
: 9. (c) The attack of September 29th was just one of those cases where "you do or you don't". Unfortunately, due to high speed of convoy, a favorable firing position was not gained and it is not believed that any hits were made.

— page 300 —
4. An interesting comment of the commanding officer is the possibility of the Japanese using a red sarpan as a warning vessel for mine fields.

The anti-submarine measures of the enemy is undoubtedly improving. All of the three convoys attached had three escort vessels, and air activity has increased immeasurably. Unfortunately the SD radar was of no use in this patrol. A thorough investigation will be made of this valuable instrument. Attention is again invited to the possibility of the Japanese firing torpedoes as a counter-message, and also to the fact the Anti-Submarine vessels are remaining in the vicinity until well after dark.

5. The material condition of the SPARFISH is average. The controlling jobs of the refit will be the thorough overhaul of four main engines and the excessive axial clearance of main motor armatures. Four weeks will be required for this work.

6. The Division Commander takes great pleasure in congratulating the commanding officer (his first patrol as such), the officers and the crew of the SPARFISH for a very excellent and profitable patrol.

C. C. HUMPHREYS.

— page 301 —
60/DV
c/o Fleet Post Office
San Francisco, California
14 October 1943.

SECOND ENDORSEMENT to
USS SPEARFISH 8th
War Patrol of 10/12/43.

from: The Commander Submarine Squadron TWO.
To: The Commander Submarine Force, PACIFIC FLEET.

Subject: U.S.S. SPEARFISH Eighth War Patrol - comments on.

1. Forwarded, concurring with the remarks in the first endorsement.

2. The first recommendation, contained in Part K (page 31 and 32) of this report, would greatly increase the effectiveness of our submarines. It is especially desirable that the range of the T.D.C. be increased as much as practicable.

3. It is with great pleasure that the Squadron Commander congratulates the new commanding officer, his officers and men on a highly successful and well executed patrol.

P. E. PENDLETON.

— page 302 —
1/1
Serial 01483
Care of Fleet Post Office,
San Francisco, California.
16 October 1943.

THIRD ENDORSEMENT to
SPEARFISH Report of
Eighth War Patrol.

COMBUSPAC PATROL REPORT NO. 287
U.S.S. SPEARFISH - EIGHTH WAR PATROL.

From: The Commander Submarine Force, Pacific Fleet.
To: The Commander-in-Chief, United States Fleet.
Via: The Commander-in-Chief, U. S. Pacific Fleet.

Subject: U.S.S. SPEARFISH (SS190) - Report of Eighth War Patrol.
(25 August to 12 October 1943).

1. The eighth war patrol of the SPEARFISH was the first for the new Commanding Officer, as such.

2. The patrol was conducted in an Empire area where air and surface anti-submarine measures were strong. In spite of this, the SPEARFISH's area coverage was good.

3. The only three worth-while contacts were convoys and each was attacked aggressively, with tenacious chases being conducted when enemy anti-submarine measures permitted.

4. This patrol is considered successful for Combat Insignia Award.

5. The Commander Submarine Force, Pacific Fleet, congratulates the Commanding Officer, officers, and crew for this aggressive and successful war patrol. The SPEARFISH is credited with inflicting the following damage to the enemy:

SUNK

1 - Freighter (class unknown) - 5,500 tons
1 - Freighter (LISBON MARU class) - 7,053 tons

TOTAL: 12,553 tons

DAMAGED

1 - Freighter (BOSTON MARU class) - 5,477 tons
1 - Freighter (unknown class) - 5,500 tons
1 - Freighter (unknown class) - 5,500 tons

TOTAL: 16,477 tons

Distribution and authentication on following page.

C. A. LOCKWOOD, Jr.

— page 304 —
1943

Arrived Pearl Harbor from Eighth War Patrol. Refitted by Holland. Major items of work accomplished: overhauled four main engines. Installed new type SJ Radar transmitter. Three day training period. Readiness for sea date November 7, 1943.

B. NARRATIVE:

November 7, 1943:

1500(VV) Underway for Ninth patrol in company with USS Seal, escorted until dark by USS Chev. At dark opened out to north from Seal.

November 8 - 9:

Enroute Johnston Island, entire run at four engine speed to maintain schedule. Sighted four U.S. planes on trip, exchanged recognition signals. Time permitted but one training dive enroute.

November 9:

1323(WX) Arrived Johnston Island. Topped off with fuel and lub. Remained overnight to repair main engine lubricating oil pump, leaky air conditioning circulating water line and broken high pressure air line in one torpedo. As reported by other submarines the personnel of Johnston Island were most cordial, and put every facility of their base at cur disposal. There is a wonderful (and amazing) spirit existing on this spot of the Pacific.

November 10:

0630(WX) Underway for patrol area, in company with Seal and Plunger. Air escort till 1030. Exercised radar tracking party with Plunger as target. The three submarines diverged during the afternoon.

November 11 - 14:

Enroute area. Committed November 13 from calendar. Conducting daily dives for each section, and daily fire control problems.

— page 305 —
0913 (L) 0916 (L)
At sunrise we were 180 miles from Wotje Island. Dove from 0700 to 0900 to avoid outgoing aircraft patrols.

: 0913 (L) 0916 (L)
All clear by SD and periscope, surfaced. Lookout sighted large flying boat on port bow, six miles, banking towards us. No S.D. indication - a distinct disappointment, as the SD had given excellent results during the training period and enroute Johnston. Dove - no bombs. With questionable SD operation, and the spotty clouds overhead, decided to remain submerged remainder of day. Conducted periscope patrol. Surfaced at sunset and proceeded to area at 3 engine speed in order to arrive on scheduled time.

: November 16
Making passage through Ratak Chain, submerged during daylight.

: 2050 (I)
SJ radar contact range 9500 yards. Tracked target on course 2600 T, speed 11 knots. From the size of the pip I was convinced the target was small, so closed to 7200 yards, and in the light of the 1/2 moon just rising made him out to be a medium sized trawler. His course put him on the direct line between Wotje and KwaJalein. Only feasible attack was a night gun action, and after considering the various factors decided against it. Opened the range and resumed course to the area.

: November 17
Entered the area, commenced submerged daylight, surface night patrolling. Approaching Jaluit.

: November 18
Dove east of East Point, Jaluit Atoll, and closed for preliminary reconnaissance. Rounded East Point at about five miles - but position was never certain as the cuts on the towers and tangents don't agree. It will take some fancy "surveying" to straighten this out. Sighted many planes during the day - in fact a periscope exposure without seeing at least one is a novelty. Avoided one trawler patrol and sighted one merchant vessel at anchor inside the lagoon near the Emidj sea plane base. Opened cut to the south at night.

— page 306 —
1. Dov south of South Point, Jaluit Atoll, and cruised up the southwest coast to Southwest Pass. Had a good look into the harbor, sighted one medium AK at anchor in the lagoon off Jabor, and several smaller vessels in various anchorages inside the lagoon. Saw no planes today, but the weather was not very suitable for flying. Surfaced 6 miles off Southwest Pass to the tune of a searchlight display across the atoll at East Point. Searchlight and aerial beacons indicated night plane landings in progress. Opened out to the south.

: 2. Dov southwest of South Point and closed coast for photography. Work progressing smoothly when at 1128(L) with the tactical situation!
   (a) 2800 yards from the beach
   (b) 3100 yards from a camouflaged 4" or 5" gun mount
   (c) Depth of water over 100 fathoms
   (d) Temperature gradient zero
   (e) Several planes sighted during the forenoon: Fire in the main control cubicle - lost all main power! The next few minutes seemed years, but our patrol saint was with us and the electricians did a marvelous job in getting the fire out, and power restored. Caught the ship at 150 feet. See major defects for details. Continued photographic work. Same AK at anchor in lagoon. At night rounded atoll to take station for patrol of Jaluit - Mili route - following air strike at Mili today.

: 3. Patrolling off East Point.

: 4. 1340 (L) Commanding Officer at the periscope, just having taken a cut on the various towers and studying East Point, observed a tremendous explosion on the southern tip of East Point. Debris was hurled at least 1000 feet in the air.

: 5. 1341 (L) Sighted three single engine planes that looked suspiciously like U.S. carrier planes.

: 6. 1348 (L) Sighted anti-aircraft bursts over East Point.

: 7. 1352 (L) Underwater explosion similar to depth charge at about 2 or 3 miles, quick look around revealed the three planes close aboard - dove to 200 feet.

— page 307 —
1410 (L) Back at periscope depth, no planes, but a huge column of smoke was rising from the point of the explosion on East Point.

: 1425 (L) Rain squalls obscured the beach which was not sighted again during the afternoon.

: 1840 (L) Surfaced.

: 1858 (L) Sighted flare-up from direction of East Point which looked like a fire.

1905-1915(L) Sighted about seven brilliant flashes of light from the direction of East Point which could have been lightning, but in view of previous happenings believe were explosions of some sort, possibly but not probably, gun fire.

November 22
Dove and closed midpoint of northeast coast. Cruised up the coast at 2500 yards photographing the beach. Sighted two small sailing craft inside the lagoon. No planes today.

November 23
Patrolling off North East Pass and East Point. Sighted nothing but airplanes. At night rounded the atoll to work southwest coast.

November 24
Dove southeast of Pinglap Island, closed for photography. Worked from Pinglap, past Southwest Pass through Ooa Island. It is a strange feeling to pass the entrance to an enemy naval base at 2000 yards. Had just completed the planned work at 1512 when a single float biplane came nosing around - cleared the coast at 120 feet for one half hour, then at periscope depth.

November 25
Patrolling across South East Pass at 6 - 8 miles. Nothing but airplanes sighted.

— page 308 —
1713 (L)
Sighted smoke in the pass which commenced drawing north. Thought this was our target - won't to battle stations and commenced approach. I went-filed "target" as a smoky Maru trawler, but continued the approach with the idea of looking over his armament for a possible night gun action. Lost him in the darkness and land background. Surfaced with generated range 3500 yards, but could not distinguish, visually or by radar, a surface target from the unnuorable small islands which form the atoll. Assumed his estimated course and speed until we were well clear of the atoll, but never picked him up again; where he went is still a mystery.

November 27
Closed East Point for photography. The dark and rainy day, heavy swells and one patrol boat running up and down the coast kept us 3½ miles off.

November 28
Dove south of South Point and headed in for photography. The same sort of weather, and a strong southerly current made the coverage meagre. Decided to maintain radar contact with South Point tonight to insure a full days work tomorrow. Patrolled back and forth six miles off the point during the night.

November 29
Dove five miles East of South Point and headed in, but the seas were so rough it was impossible to maintain continuous pariscope depth without using high speed. Spent the day 4 to 6 miles off South East Pass, dodging one patrol boat and getting a fair look at the various towers. Photography impossible due to rough seas and squally weather. Average visibility 3 miles. Surfaced six miles east of South Point.

— page 309 —
2050 (L) Set course for Mili atoll. Making full speed on all four main engines as soon as change permitted.

November 30

0440 (L) Estimated 15 miles from Mili, encountered Radar interference on S.J. on bearing cf Mili. Located like 10 cm, fast sweep, surface radar - not caused by another S.J. set. Dove as it was getting light.

0810 (L) Submerged landfall on Mili, commenced patrolling seven miles Northwest of Northwast tip of Mili.

1630 (L) Sighted masts, went to battle stations. commenced approach. Targets turned out to be two trawlers, probably patrol boats, in line of bearing, on a course for Mili. Avoided, then assumed reverse of their course hoping they wore clear of the way for something big. Surfaced shortly after sunset and continued on their reverse course until midnight. More S.J. interference so as this morning. Sighted glow of probable serial beacon from Mili. Visibility today has been terrible, varying from zero to five miles.

December 1

Returning to Jaluit. Dove Northeast of Northeast pass. Covering route from end to both northeast and southeast pass. Same miserable visibility. Nothing sighted.

December 2

Dove east of East Point. Closed South East Pass to 3 miles, and then worked the coast to the southward. Was startled on one observation, when looking back up the coast, to find myself looking into the lagoon underneath the trees. The Japs have built a covering from one of the islands to another, and have camouflaged it by planting trees on it. Will investigate this more later - it was too late in the afternoon to go back and give it further observation. Many planes sighted today.

— page 310 —
0515 (L) 0524 (L) 0533 (L) 055C (L) 0640 (L) 0729 (L)

Encrypt the text as follows:

```
USS SPEARFISH Ninth War Patrol
December 3
Dove northeast of North East Pass and closed East Point for photography. While approaching, plained down to 90 feet once for a single engine, single float plane that was getting too close. Cruised down East Point at 3000 yards, locking into the face of barracks, observation towers, guns, barb wire, radar towers, radic towers, power lines, embankments and one patrol boat anchored near the beach! While taking a sweep around in low power prior to taking the last set of pictures of East Point came face to face with the pilot of the single engine, single float plane! His angle on the bow, about 15 starboard, decreasing. Went deep in a hurry, expecting a shaking up at any moment, but nothing happened. Cleared the vicinity, drew off to the Eastward. Shortly after surfacing set course for Wotje for rescue station.

December 4
Encrute Wotje. Arrived during the night on designated rescue station forty miles east of Wotje.

December 5
Patrolling on station, surfaced.

0515 (L) Heard a few "testing" calls on 6835 kcs, the assigned aircraft frequency.

0524 (L) Sunrise, sky filled with scattered clouds, not so good for aircraft work.

0533 (L) S.D. contact 13 miles. Tried to stay up for identification, but with range closing rapidly to six miles without sighting, dove.

055C (L) Surfaced.

0640 (L) J.O.O.D. reported aircraft close aboard, dove. Not identified.

0729 (L) Surfaced. From lookouts report that he had seen a bird on the same bearing, believed that we had not made an actual contact. J.O.O.D. not positive it was an aircraft.
```

— page 311 —
0821 (L) S.D. contact 17 miles. Again tried to establish identification, but with the range closing to 5 miles without sighting, dove.

Our directive is to remain undetected until after the attack, which was scheduled for either today or tomorrow. Since the "dawn" hour was well past, and no activity heard on the aircraft frequency believed tomorrow is the day, so remained submerged.

1232-51(L) Heard four very distant underwater explosions. Nothing in sight by high periscope exposure.

1755 (L) Surfaced 20 minutes after sunset, patrolling station.

1935 (L) Sighted possible distant flare bearing 065° T, headed for it at 15 knots. After having gone seven miles, swept searchlight around the horizon and in the sky. Continued on for eight more miles, then commenced a back and forth search back down the original bearing line.

December 6

At sunrise we were on the bearing line, distant 8 miles from the original sighting. Continuing search on the surface. No signals on 6835 kcs.

0622 (L) Sighted the biggest aircraft I have ever seen - an "Emily" flying boat that makes a "clipper" look like a fighter. Thought we could get away with remaining on the surface, but he apparently sighted us and turned for us. Dove.

Decided to close Wotje submerged, as our surface searching had carried us in that direction. New below that yesterday was the day of the attack.

1403 (L) Sighted Wotje. Closed to three miles. Radio radar towers still standing - no fires.

1608 (L) Sight 4 engine "Mavis" flying boat, watched him land inside the lagoon.

1808 (L) Surfaced and commenced search of channel between Wotje and Malgolap. Heard Tkcyc broadcast concerning Marshall air strike - our first positive indication that a raid did take place.

— page 312 —
0030 (L) Cleared our serial #1 to ComSubPac.
: 0045 (L) Sighted beam of two vertical searchlights on Malcolap. Some sort of anti-submarine work? Mved tc the westward for search in the morning to cover westward current drift.
: 0517 (L) Submerged at sunrise, the low overcast sky makes aircraft surprise too easy. We have no information whatsoever on the downing of any aviators.
: 1757 (L) Surfaced and set course for Jaluit in accordance with our message.

December 6
Dove north-east of Northeast pass, closed east for final photograph. Worked from Northeast pass, around East Point, at 2000 yards, and across Southeast pass at 3500 yards. Sighted the same AK at anchor inside East Point, identified him as the 1951 ton Gosei Iaru class. Waves breaking over the reef between the islands indicate a shot at him from 5000 yards (close to possible range) would be a waste of torpedoes. No planes today - a decided relief. Today's highlight, other than staring at the fortifications, was being able to see the lockouts in the lockout towers. After crossing NE pass investigated the camouflaged covering sighted on the end, was chagrined and disappointed to find it nothing but some large buildings with light colored paint. Jabor is quite a village, many buildings, etc.

December 9
Patrolling off NE pass.
0933 (L) Sighted same trawler as of November 26, moving down the coast toward NE pass.
1707 (L) Sighted heavy smoke from direction of East Point (15 miles). Commenced approach, but finally decided smoke was from the beach.
1820 (L) Surfaced, and sighted flame of a very large fire on East Point - the source of our smoke target. From the smoke and flame it appeared to be an oil fire - the Japs have had a bad accident - or our aviators have been busy.

— page 313 —
2003 (L) Bright moonlight (full moon tomorrow) with spotty clouds - 0.0.D. and lookout sighted an airplane on the port bow (angle on bow 70 port) that they claim they could have hit with a potato. Dove in a tremendous hurry.

: 2029 (L) Surfaced - manning SD radar now.

: 2036 (L) SD contact 13 miles. Stayed up until range closed to 8 miles rather rapidly. Dove.

: 2105 (L) Surfaced.

: 2135 (L) SD contact 6 miles. Dove.

: 2202 (L) Surfaced.

: 2218 (L) SD contact 13 miles. Stayed up until range closed to 5 miles, rapidly. Dove.

: 2325 (L) Surfaced.

No more plane contacts throughout the night - a relief. Assumptions:
(1) An air raid took place (the O.O.D. thought the plane sighted might be a "Liberator" but he naturally was a little too occupied to take a good look) or
(2) The Nips are running a moonlight patrol - which I hope is not true.

December 10

Patrolling 10 miles northeast of the atoll on the Kawajeloin route. Nothing sighted.

December 11

Patrolling along the NE coast at three miles. Nothing sighted. News broadcast tonight told of an air raid on Jaluit, claiming one medium AK probably sunk. Guess we were dodging Liberators the other night after all.

December 12

Patrolling across NE pass at three miles, and down to East Point. Our old standby, the Gosei Maru is still there, evidently having survived the air raid. Lockout towers and radio towers also still standing.

— page 314 —
1030 (L) In accordance with despatch orders terminated patrol and set course for Pearl.

: 0530 (L) Twenty miles NE of Majuro Atoll, planning on a try at surface running today. C.O. sighted a large land based bomber on starboard bow. As we were diving radar picked him up at 5 miles. Remained submerged remainder of day.

: 1040 (Y) Sighted and exchanged recognition signals with A20 patrol bomber from Johnston.

: 0630 (VW) Rendezvous with escort SC 1009 and Sawfish.

: 1130 (VW) Moored at Sub Base, Pearl Harbor.

— page 315 —
1. Weather:
As indicated in the pilot, November and December are the rainy months for the Marshalls. We agree, for hardly a day or night passed without several rain storms. Seas were generally rough, with medium swells. Wind nearly constantly from the North East.

(D) TIDAL INFORMATION:
North East of Jaluit the current is generally to the northeast, about .75 knots. East of the atoll little current was encountered. South and Southeast of the atoll the current was usually southeast, about .75 knots. Those same currents were also reported by previ. us-submarines in this area.

When within three miles of the atoll the current is variable, usually varying in the expected direction with the change in the tides, but at other times they defy all laws of nature. These currents ranged from zero to 1½ knots.

(E) NAVIGATIONAL AIDS:
The chart of Jaluit is substantially correct. The northern tip of Ainanan Island is not quite as shown, but is sufficiently close for off shore piloting. Three sets of towers are located as follows:

(1) Two very high (218' measured by periscope) thin towers located exactly as shown on the detail chart of Jabor Anchorage, chart #5429. Towers bearing line 118° - 298° checks exactly.

(2) Two heavy (tripod with cross braces) towers with structures on top of the towers, located on Jaluit Island 2.2 miles down the coast from the thin towers of Jabor. These towers were measured as 172 feet tall, bearing line 095° - 275°, and can be seen about three miles further away than the thin towers of Jabor.

(3) Three large tripod towers, each with a double cross arms, set in a triangle, 0.6 miles south of the northern tip of Ainanan Island. The towers are about 100 feet high.

— page 316 —
(F) SHIP CONTACTS:

| TIME | LAT  | TYPE | INITIAL RANGE | COURSE SPEED | HOW CONTACT | REMARKS |
|------|------|------|||||
| 2050 | 9-12 | N   | 260          | 11            | R          |         |
| 1522 | 6-06 | N   | Aux.        | 110           |             |         |
| 1726 | 6-10 | N   | Schc.ner   | 8000          | 8           | P       |
| 1730 | 6-10 | N   |          | 340           |             |         |
| 1726 | 6-21 | N   | Trawler    | 14000         | 6           | P       |
| 1640 | 6-21 | N   |          | 130           |             |         |
| 1730 | 6-08 | N   | 2 Trawlers| 12000         | 10          | P       |
| 1729 | 6-08 | N   |          | 160           |             |         |
| 1729 | 6-08 | N   | Trawler    | 10000         | 8           | P       |
| 1718 | 6-08 | N   |          |              |             |         |
| 171

— page 317 —
1. MINES:
   - None.

: 2. ANTI-SUBMARINE MEASURES:
   - The enemy has a most efficient aircraft patrol over the entire Marshall Island area. There appeared to be no continuous surface patrol near Jaluit, patrol being encountered rather infrequently near the shores of Jaluit, considering our 23-days of constant observation of the atoll.

: 3. MAJOR DEFECTS:
   - (1) Rubber grammets in high pressure air line joints have failed in one instance during last patrol and in five instances during the present patrol. Present type of joint was installed during overhaul at Mare Island Navy Yard and replaced to old belled joints. It is believed that replacement of the rubber grammets with grammets of a tougher material would correct the present trouble.
   - (2) Packing in hydraulic accumulator installed during last refit has not been able to hold the accumulator air pressure. Packing should be renewed.
   - (3) Vernier rheostat for #3 main motor field burned out with considerable flash and smoke which resulted in report of "Fire in Control Cubicle" and loss of power far several minutes. Rheostat was cut out and not used for remainder of patrol with no unsatisfactory results.

— page 318 —
1. RADIO:
   - HA1KU broadcasts were copied without difficulty on 4525 kcs. Cleared our serial one through Australia who reported Japanese interference. On several occasions we noted jamming of the San Francisco short wave news broadcasts.

(M) RADAR:
   - Both S.D. and S.J. performance were the best yet experienced by this vessel or the Commanding Officer on other patrols. The new S.J. transmitter has increased the normal ranges by at least 50%. The islands of the atoll were held to about 15,000 yards, and one trawler was picked up at 9500 yards. Several S.D. contacts were made over 15 miles, and one low flying plane was picked up at 5 miles. Usual replacements of tubes and condensers were found necessary.

(N) SOUND CONDITIONS:
   - Sound conditions in the Marshall Islands are good. Trawler screws were picked up at 10,000 yards.

(O) DENSITY LAYERS:
   - Density layers apparently do not exist near Jaluit, at least not down to 250 feet. The bathymograph cards gave straight up and down lines.

(P) HEALTH:
   - Other than a rather severe epidemic of cancer in the star at 4-5% of the ship's number of personnel, health, food and habitability were normal.

(Q) PERSONNEL:
   - Training of personnel, both officers and men, is considered satisfactory. Training in qualification in submarines and for advancement in rating is carried on continuously, and helped to make up for the lack of contacts.

(R) MILES STEAMED - FUEL USED:
   - Base to Area 2168 mi. 14,892 gal.
   - In Area 2539 mi. 19,458 gal.
   - Area to base 2100 mi. 31,500 (Approx.) gal.

- 15 -

— page 319 —
20
Torpedoes. Fuel. Provisions. Personnel. Factor
25 days. 5 days

Limiting factor this patrol - patrol terminated in accordance with orders ComSubPac.

(U) REMARKS:
This patrol was naturally disappointing to all hands in view of the utter lack of contacts worthy of a torpedo.

The photographic work provided some experiences which compensated in part for the lack of contacts. However until a camera is devised that gives a picture comparable to what one sees through the periscope in high power, minute details will not be obtained. The present pictures appear to be about what is seen in low power, and are lacking somewhat in the rather startling details which were visible when within 2000 yards of one of the major defended Japanese islands of the Marshalls.

— page 320 —
1. Forwarded.
2. This patrol was the ninth war patrol for the SPARFISH and the second for Lieutenant Commander J.W. Williams as commanding officer. It extended over a period of forty-one days of which twenty-five days were spent in the area.
3. No suitable ship contacts were made which could be attacked.
4. The morale and health of the crew on arrival were excellent.
5. All material defects will be remedied during this refit period by the HOLLAND.
6. The commanding officer, officers and men are to be congratulated on the successful completion of such a trying mission.

L. N. BLAIR.

— page 321 —
FC5-4/A16-3
Serial 0353
C-O-N-F-I-D-E-N-T-I-A-L
SECOND ENDORSEMENT to
USS SPEARFISH Report
of Ninth War Patrol.

From: The Commander Submarine Squadron FOUR.
To: The Commander-in-Chief, UNITED STATES FLEET.
Via: (1) The Commander Submarine Force, PACIFIC FLIGHT.
       (2) The Commander-in-Chief, PACIFIC FLIGHT.

Subject: U.S.S. SPEARFISH Report of Ninth War Patrol -
Comments on.

1. Forwarded, concurring in the remarks of Commander
Submarine Division FORTY FOUR.

2. The Commanding Officer, officers and men of the
SPEARFISH are to be congratulated on the perseverance and
skill with which this difficult reconnaissance was successfully
completed.

C. E. L. D

— page 322 —
12/10/16-3(6)/(16) SUBMARINE FORCE, PACIFIC FLEET
Serial 01992
CONFIDENTIAL

FIRST ENCOUNTER to
SPECIFIC REPORT of
Ninth War Petrol.

CONSUBSAP PATROL REPORT NO. 335
U.S.S. SPEARFISH - NINTH WAR PETROL.

From: The Commander Submarine Force, Pacific Fleet.
To: The Commander-in-Chief, United States Fleet.
Via: The Commander-in-Chief, U. S. Pacific Fleet.

Subject: U.S.S. SPEARFISH (SS190) - Report of Ninth War Petrol.
(7 November to 19 December 1943).

1. The ninth war petrol of the SPEARFISH was conducted in the Marshall Islands. The primary mission was phototropic reconnaissance of Jaluit Atoll.

2. SPEARFISH carried out this difficult and arduous mission successfully. No contacts were sighted and thus no attacks were made.

3. This petrol is considered successful for Combat Insignia award.

4. The Commander Submarine Force, Pacific Fleet, constitutes the Commanding Officer, officers, and crew for the successful accomplishment of their mission.

DISTRIBUTION:
(Complete Reports)
Cominch (5)
CNO (5)
Cincpce (6)
Intel. Cen. Fec.
Ocean Areas (1)
Comservpac (adv.Base Flan.Unit) (1)
Cinclant (2)
Comsubsblant (6) all Squadron and Div.
S/M School, NL (2) Commanders, Subspace (2)
Comsopac (2) Consubstrepinac (2)
Comsowespac (1) all Submarines, Subspace (1)
Comsubsowespace (2)
CTF 72 (2)
Commorpac (1)
Comsubspace (20) J. A. WOODRUFF, Jr.,
SUBD, MI (2) Fleg Secretary.
ComsubspecSubordcom (3)

— page 323 —
88691 FILMED
U. S. S. SPEARFISH
Care of Fleet Post Office
San Francisco, California
29 February 1944

DECLASSIFIED: 044, OPNAVINST 5510
BY: [Signature]
DATE: [Date]

From: [Signature]
To: [Signature]
Via: [Signature]

Subject: U.S.S. SPEARFISH Tenth War Patrol - Report of.

Enclosure: (A) Subject Report.
(B) Track Chart.

1. Enclosure (A), covering the tenth war patrol of this vessel conducted in northern part of SOUTH CHINA SEAS during the period 17 January 1944 to 29 February 1944, and enclosure (B) are forwarded herewith.

J. W. WILLIAMS, JR.

3 02667

— page 324 —
U.S.S. PEARFISH
:  ENUM: WAR PATROL
:  A. Prologue
:  Dec. 19, 1943
:  Arrived Pearl Harbor from Ninth War Patrol. Refitted by HOLLAND and Submarine Base. Accomplished following alterations: Reduced bridge silhouette, installed PPI, converted 3A and B to reserve fuel, installed JP sound gear. A most satisfactory refit. Had three day training period plus two day convoy exercise (without finding convoy). Readiness for sea date, January 17, 1944.

:  B. Narrative
:  Jan. 17, 1944
:  1300 (VW) Underway for tenth patrol, in company with Seal, escorted by PC 1081, enroute Johnston.

:  Jan. 18
:  1320 (VW) SD contact 12 miles, closed to 3 miles without sighting - complete low overcast skies. Fired flare. Contact commenced opening range, faded out at 10 miles.

:  Jan. 19
:  1330 (WX) Arrived Johnston Island. Topped off with fuel, lub, and water. As usual personnel of Johnston were most cordial.

:  1730 (WX) Underway for patrol area, air escort till dark.

:  Jan. 20
:  Enroute area, two engine speed, daily dives for each section and fire control drills.

:  Jan. 21
:  2230 (Y) SJ PPI contact bearing 250° T, range 17,000 yards. Commenced tracking - target course 003° T, speed 12, not zigzagging. This course checks with, and is within 30 miles of reported track of USS CLAMP, enroute Midway from Tarawa. Radar interference similar to that from our own surface vessels from direction of target. Closed the range to 8000 yards, sighted and identified target as neither a large vessel or a submarine. From all the above concluded target was CLAMP, therefore resumed course to the area.

:  At midnight set date ahead to 23 January 1944.

— page 325 —
0430
Range unit of SJ out of commission for remainder of patrol - broken crystal. We can estimate range from the PPI (manufactured a transparent range scale), and get fair bearings, but it is a big disappointment to face the loss of the SJ's greatest offensive value - accurate ranges. And all for lack of one little crystal!

: 0250
Passing 120 north of Wake Island, bucking heavy swells, spent most of the day submerged.

: 2047 (L)
Radar interference on PPI bearing northwest, which drew to the northeast. Probably HALIBUT whom we were told we might pass tonight.

: 2200 (L)
Converted 3A and B from F.B.T. to M.B.T. Now have a normal load of fuel and are south of Marcus. Very fine.

: 0230 (L)
Radar interference on PPI to the west. Another of Halibut's wolfpack? Avoided. Interference drew to the northeast.

: 0290
Slowed to one engine speed in accordance OpOrd on crossing 155° E Long.

: 0300 (K)
200 miles northeast of northmost Marianas. With dawn just beginning to break, sighted smoke bearing 300° T. Opened the range for daylight surface tracking. Interference on the PPI from several widely different bearings, indicating Japs have either 10 cm Radar, or Radar jamming sets, most probably the latter. Secured our SJ to not give away our presence.

: 0700 (K)
Made out smoke and masts of three ships through the high periscope. Commenced tracking. Targets base course 160° T, the course from Empire to Iruk. Speed 9 knots. Surface run for position ahead.

: 0931 (K)
Now dead ahead of the base course, range about 25,000 yards, submerged to 250 feet for trim check. Small negative break at 220 feet.

— page 326 —
0956 (K)
: 1103 (K)
: 1110 (K)
: 1521 (K)
: 1700 (K)

Periscope depth, sighted smoke, commenced approach. As range decreased made out convoy to consist of three loaded, good sized merchantmen, and two corvette type escorts. The frigates were in line of bearing 90 degrees to the base course, the escorts on the outboard beams. Zigzagging simultaneously about every seven minutes. A most unusual formation, and as we were dead ahead we got in with no interference. With one more zig to go swung to a course normal to the base course, planning on both bow and stern shots. The next and last zig was more than expected, and it put us dead ahead of the center merchantman at 750 yards. Had to wait about a minute for favorable gyros and tracks on the wing ships - it seemed a very long minute. At

fired the four storm tubes (MK 18's) at the port wing'ship, range 1200 yards, 105 starboard track, gyros about 30 loft. Immediately after commencing fire I looked at the center ship to see if we had time to get off the bow tubes on the starboard wing ship. We didn't, for the angle on the bow of the center ship was still zero, range about 400 yards. Ordered deep depth, full speed, and rig for depth charge while we were still firing the stern tubes.

Two timed hits (loud explosions) on our target.

The two escorts commenced depth charging, which, while they never came close enough to do damage, was a little disturbing by their persistancy and their generous coaling out of the charges. During the next three hours the official count was 46 depth charges. Last barrage at 1409 (K).

Periscope depth, sighted smoke bearing 255° T. Commenced closing smoke, and reloading.

Situation as follows:-
(1) Our target stopped, snaking heavily from his stack. Range 18,000 yards. No visible damage at this range, other than fact he is stopped.
(2) The former starboard wing merchantman circling the cripple.
(3) Both escorts running around in circles, echo ranging.
(4) The center merchantman not in sight - apparently he had gone on.
(5) Sunset in 18 hours - insufficient time for submerged attack.

Planned night surface attack, commenced circling 18,000 yards off.

— page 327 —
1858 (K) 2152 (K) 2233 (K) 2234-50 (K)

With all three targets forming one big black mass, range 2500 yards, grabbed the opportunity and fired the four bow tubes with MOT as middle of the mass (TBV bearings). torpedoes spread by offset to cover a target length of 560 feet, gyros alternating across zero.

Three explosions in the target group such as I never believed possible. Two tremendous pillars of fire rose 1000 feet in the air, lighting the whole area for miles around. All hands on the bridge, including myself, saw both merchantmen literally disintegrate and disappear in about 30 seconds, leaving a clear horizon except for burning oil or gasoline on the water. The escort could not be distinguished after he had zeroed with the target group, and after the explosions, he too was gone. The PPI officer immediately confirmed the sinkings with the report - "They have all disappeared". If I hadn't seen it myself I wouldn't have believed it. That was a salvo for the record books.

With one escort still unaccounted for, cleared the vicinity. Burning liquid on the water still visible for 30 minutes.

From the Jap angle, I think this was their story: Original target damaged and stopped in the first attack. A possibility of getting him underway (as evidenced by heavy smoke from his stack later in the afternoon). However they kept one freighter for towing and both escorts (who weren't big enough for towing) in case he couldn't get underway. By noon set they apparently gave up trying to get him underway (he gave out no smoke during the night approach).

— page 328 —
1. 2. 3.

Jan. 31
Feb. 1
Feb. 5
1000 (I)
Feb. 7
0410 (H)
0530 (H)
1835 (H)

Spent the day submerged, resting, and periscope patrol of Empire - Truk route.

Resumed surface cruising to the area.

Entered eastern part of the area. Continued surface cruising toward South China Sea, one engine speed.

SJ PPI landfall on Bataan Islands, range 40,000 yards.

Submerged for passage through Bashi Channel, into South China Sea.

Surfaced, headed for Philippines - Formosa traffic route.

— page 329 —
1045 (H) (8+)
: 1850 (H)
: 1859 (H)
: 2100 (H)
: 2146 (H)

: 1850 (H)
: 1859 (H)
: 2100 (H)
: 2146 (H

— page 330 —
Turned away at emergency speed. Steadiied down on opposite course, had set up aft on another freighter and was about to fire the stern tubes when we observed two terrific hits on our major target. Considering (1) the range (3800 yards), (2) the slow speed and limiting range of the MK 18's aft, and (3) the expected momentary scattering of the convoy due to the torpedo hits --- withheld fire aft. The convoy starboard bow escort spun around, charged down the starboard flank of the convoy dropping depth charges whose splashes and healthy bangs were seen and heard, and for the first time in my life appreciated. The other two AK's turned tail to us and ran, and the escorts began running back and forth.

Our target was now completely obscured by heavy smoke -- about two minutes after the hits the smoke suddenly disappeared and there was no ship there; he had sunk. All the other ships were still clearly visible at this point.

The freighter who had been beyond and overlapped by our major target continued to present a large starboard angle. I couldn't see why he didn't turn away also, until reports from below decks indicated three torpedo hits, two timed right for our major target, and an other about 45 seconds later. This second freighter had apparently caught one of the wing torpedoes, although we didn't actually see the hit, and the only damage apparent, was his inability to turn away with the other two AK's.

While we were opening the range at 17 knots, observed scattered gun fire from the escorts, more depth charging, and radio reported much nearby "yapping" on the distress frequency, 500 kcs.

The ship sunk was a passenger freighter of about 6500 tons, exact identification uncertain. The ship damaged is estimated as a 5500 ton AK, no identification.

With the bright noon now coming out completely, decided there was too much visibility with too many alerted escorts for us to operate in their vicinity any more tonight. As the remnants of the convoy would be in Takea in the morning, cleared the scene to the south.

— page 331 —
2320 (H)  PPI contact bearing 200° T, range 25,000 yards. Commenced tracking.

: Feb. 11  It soon developed that while retiring south after the attack on the Singapore-Takao convoy we were overtaking a Takao-Philippine convoy. At least eleven vessels in this one, course 190° T, speed 8 knots.

: 0230 (H)  With the moon obscured by some scatter-raid clouds, made a run in at 17 knots for the two trailing large AK's, who had two escorts around them. It looked as though we were racing to obtain a fair shooting position, but as we passed 7000 yards range the moon started to come out again. At 6000 yards it was too bright to continue in on the surface, and since we were overtaking, submerged we would not help the control problem. Felt that we were in about as good a surface position as we would get tonight, so at

: 0243 (H)  fired the four bow tubes at the trailing AK, range 5800 yards, 150 track, in 1-2 p.w. At firing the two AK's and their escorts were well repulsed, all being visible in the field of the binoculars. Turned away after firing but there was, of course, no possibility of firing the MK 18's aft due to the large range.

: 0250 (H)  One timed hit, range now too great for visual observation of the hit.

: 0254 (H)  Three explosions, possibly the other three torpedoes at end of run.

: 0255-0310 (H)  Many depth charge explosions.

: 0315 (H)  Again much chatter on the listross frequency from nearby vessels.

The target is estimated as a 6000 ton AK, unknown class.

— page 332 —
0545 (H) Submerged.

: 1840 (H) Surfaced and commenced sending our serial #1 to CommSubPac reporting results to date.

: 1950 (H) After vainly calling NPM as usual, finally cleared the message through VHM, Australia, after much trouble much chattering on the radio. Manned SD radar on monitor at 2000 (H).

: 2211 (H) Aircraft contact on PPI (repl) change of range and bearing). Submerged. It didn't take them long to run down their RDF on our transmission.

: 2305 (H) All clear, surfaced.

Feb. 12

: 0535 (H) Headings for Hainan Straits, which looks like a good unexplored hunting ground.

: 1100 (H) Slightly smoke and masts of vessel bearing 255° T, range 14,000 yards. Commenced approach. On the second lock saw that we had ANOTHER CONVOY! this is some happy hunting ground! Convoy developed into four AK's, one DD and one small 45 merchantman, base course 045° T (Singapore-Ataka area!) speed 7.5 knots, constant helm zigzag. Ran for an hour on normal approach course at high speed, swung around for storm tube shots (last four torpedoes are aft) and at

: 1213 (H) Fire the four storm tubes (KK 18 torpedoes) at the leading starboard AK on an 80° starboard track, 1600 yard run, gyros 20 left, just as he was reversing his constant helm swing.

- 9 -

— page 333 —
1214-15)
: 1214-45)
: 1226 (H)
: 1235 (H)
: 1350 (H)

Feb. 13

Head: 0645 (H)
Avoided: 0730 (H)
0830 (H)
1830 (H)

Surfaced: 0645 (H)
0830 (H)
1830 (H)

Feb. 13

Head: 0645 (H)
Avoided: 0730 (H)
0830 (H)
1830 (H)

Surf

— page 334 —
14
0200 (H) PPI landfall on Bataan Islands, 50,000 yards.
0530 (H) Completed passage Bashi Channel, the PPI makes piloting a cinch.
0600 (H) Still bucking very heavy seas, submerged for the day.
1800 (H) Surfaced, Seas still heavy.
Feb. 15
Surface cruising en route Midway.
Feb. 16
0620 (H) Crossed eastern boundary of the area.
Feb. 19
0200 (I) PPI landfall on KITA IO SHIMA (2630 foot volcano) at 75,000 yards. Passed through KAZAN RETI.C. Dove at dawn as we were 90 miles south of CHICHI JIMA (Bonin) airfields, bucking heavy seas with partially low overcast skies. I believe KITA IO SHIMA, reported active in 1919, was giving out heavy smoke. Either that or a long dark cloud extending from the volcano to leeward gave a very realistic appearance.

Feb. 21
#1 main engine out of commission. Broken piston rings in #9 unit caused shearing of supercrancer pins, cracked block, and gouged piston. On further inspection found other worn rings. Renewed four pistons and rings to put engine back in for limited service.

Feb. 23
2315 (L) Set course for Pearl in accordance despatch orders.
Feb. 25
#2 main engine out of commission. Renewed rings on #9 unit. These rings had but 360 hours operation before failing.

Feb. 29
1115 (VW) Moored S/M Base, Pearl Harbor.

— page 335 —
(C) WEATHER
Enroute Johnston to China Sea weather was exceptionally fine.
In the South China Sea the weather was the most variable I have ever experienced. It was continually alternating between clear skies, smooth seas and gentle winds to heavy overcast heavy seas and high winds. The complete change would take place sometimes in as little as six hours.

(D) TIDAL INFORMATION
Sixty miles South and Southwest of Taiwan a prevailing current of 3200 T, 1.2 knots was encountered.

(E) NAVIGATIONAL AIDS
None sighted.

(F) SHIP CONTACTS
| NO. | Time | Lat(N) | Lat(E) | Type(s) | Initial Range | Course Speed | How Cont. | Remarks |
|-----|------||||||||
| 1   | 1103 | 21-15  | Convoy, & 2 escorts | 3AKS, 25 yards | 25,000 | 160 | SD | Attacked. |
| 2   | 2146 | 21-53  | Convoy, 1 AP, 2 DD's & escorts | 3AKS, 15,000 yards | 045 | 7.0 | R | Attacked. |
| 3   | 0243 | 21-00  | Convoy, 7 AKS, 4 or 5 escorts | 6 or 24,000 yards | 190 | 7.5 | R | Attacked. |
| 4   | 1100 | 20-31  | Convoy, 1 DD, 1 AS AK, yards | 4 AKS, 14,000 yards | 045 | 7.5 | PD | Attacked. |
| 5   | Feb. 12 | 117-47 | 1 DD, 1 AS AK, yards | 4 AKS, 14,000 yards | 045 | 7.5 | PD | Attacked. |

All convoys were on traffic routes, #1 on Empire to Truk, #2 and #4 on same base course line 045° 1 for 1,000 yards, and #3 from Pescadores Channel to Palawan Channel.

(G) AIRCRAFT CONTACTS
| NO. | Time | Lat | Lat | Type | Init. Range | Course Speed | How Cont. | Remarks |
|-----|------|-----|-----|------|||||
| 1   | 1042 | 20-38 | Mavis | 6 mi. | 180 | ? | P | - |
| 2   | 1240 | 21-36N | 2 enr. bomb | 6 mi. | 000 | ? | P | - |
| 3   | 2157 | 21-37N | ? | 10 mi. | ? | ? | PPI of SJ radar | Dove |

— page 337 —
5 6 7 8
: 103° 105° 107° 110°
: 147° 146° 145° 157°
: 6' 6' 6' 6'
:
: No No No No
: 18 18 18 18
: 53595 53719 53609 53571
: 4-2 4-2 4-2 4-2
: 16459 16127 16121 16268
: Contact Contact Contact Contact
: 18 18 18 18
: 339 766 722 691
: TPX TPX TPX TPX
: 88 88 88 88
: 1°0 R 1°0 L 4°0 L 4°0 R
: Smooth Slightly Choppy
: SubBase Pearl Harbor
: Our first firings of the MK 18 torpedoes - very pleased with results. All apparently ran normally.

- 14 -

3 02007

— page 338 —
U.S.S. SPEARFISH.  TORPEDO ATTACK NO. 2  PARROL NO. 10
Time 1233 (Z)  Date Jan. 30, 1942  Lat 21-15' N  Long 149-18' E

Target Data - Damage Inflicted.

Ships Sunk:
Lima Maru, stopped as result of damage from torpedo attack #1.  Adan Maru (in same convoy attacked during the day) drawing alongside or close to Lima presumably for passing tow line.  One corvette type escort also closing Lima.

Ships Sunk:
One AK similiar Lima Maru, 7098 ton, page 246, ONI-208-J (revised).
One AK, similiar Adan Maru, 5901 ton, page 189, ONI-208-J (revised).
One corvette type escort vessel, estimated 500 tons.

Damage Determined:
By:
Night surface attack.  At 7500 yards could distinguish all three ships visually and by PPI.  At 6500 yards all three ships bear on more to the starboard.  At firing, 6500 yards, all three ships overlapped.  Three terrific explosions in the starboard of the ship, two of which caused 7000 tons of fire, probably by explosive explosion.  Thirty seconds after the explosions both north and south of the ship, the escort vessel had also disappeared by this time, having either been hit by a torpedo or destroyed by the cargo explosion, 1055 probably the latter.  PPI confirmed the sinkings, as all target ships faded out at range of 2000 yards.

Target:
Draft 27 feet  Course 150, Speed 0, Range 2500 yards.
25 feet
6 feet

Own Ship Data

Speed 9.5 knots  Course 255  Depth Surface  angle 0

Fire Control & Torpedo Data

Type Attack:
Night surface attack, using PPI continuously for bearings and ranges.  (SJ Range unit out of commission).  Bridge TBT bearings from 10,000 yards in.  Gyros matched, generated bearing checked continuously from TBT during firings, spread by offset dials to cover target length of 560 feet.  Mark 14 torpedoes, all appeared to run normally.

— page 339 —
1 2 3 4
: 1 2 3 4
: About 80 port - visual estimate as speed was zero.
: 3590-30' 3590 3590 3590
: 6' 6' 6' 6'
: High High High High
: 3 Hits
: No No No No
: 14-3A 14-3A 14-3A 14-3A
: 24523 25590 22139 25928
: 6-4 6-4 6-4 6-4
: 2407 2460 2113 2690
: Contact Contact Contact Contact
: Contact
: 16-1 16-1 16-1 16-1
: 3127 5328 3096 3124
: TPX TPX TPX TPX
:

— page 340 —
1944
Date Feb. 10, 1944
Lat. 210-53 N
Long.119°-13' E

Target Data - Damage Inflicted.

Description:
Convoy of one AP, 3 AK's, 2 DD's and other escorts. Initial contact by PPI of SJ radar, range 18,000 yards. Full moon obscured by scattered clouds.

Ships Sunk:
One AP, exact identification uncertain, estimated 8500 tons.

Ship Damaged:
One AK, type unknown, estimated 5500 tons.

Damage Determined By:
AP sunk - Night surface attack. Saw two torpedo explosions at target. Ship immediately enveloped in black smoke. Two minutes later smoke suddenly disappeared and there was no ship where the smoke had been. Other vessels of the convoy clearly visible at this time.

AK damaged. At firing ship was beyond and just overlapped by major target (AP). Times indicate a torpedo explosion 45 seconds after the two explosions heard on the AP. This AK did not turn away and run as did the other AK's - indicating he was out of control.

Targets:
Draft 22 feet, Course 045° T, Speed 6.75 knots. Range #1 - 3000 #2 - 4200 (est.)

Own Ship Data

Speed 9.0 Course 300° T Depth - Surface Angle 0

Fire Control Data

Type Attack:
Night surface attack. TB's bearings, PPI points continuously for ranges and disposition check. Fired on generated bearings which were checked continuously by TB's, gyros, matched, spread by offset dial to cover 150% tar et length.

- 17 -

— page 341 —
1 2 3 4
: 78° 80° 83° 86°
: 80° 60° 40° 70-30'
: 81' 81' 81' 81'
: High High High High
: 3 Hits
: No No No No
: 14-3A 14-3A 14-3A 14-3A
: 40211 25204 39335 22190
: 6-4 6-4 6-4 6-4
: 3313 2485 1494 2456
: Contact Contact Contact Contact
:
: 16-1 16-1 16-1 16-1
: 12053 11873 12001 11980
: XPX XPX XPX XPX
: -- & Sec & Sec & Sec & Sec
: 3/40 R 3/40 L 2½ L 2½ R
: Sight Swells
: U.S.S. HOLLAND
: Aluminum firring pins in exploders.

- 18 -

— page 342 —
1943 (Z) Date Feb. 10 (Z) 0243 (H) Lat. 21°-00'N Long. 119°-07' E

Target Data - Demarée Inflicted.

Description: Convoy of eleven ships (AK's and escorts). Initial contact by PPI of SJ radar, range 24,000 yards. Full moon with scattered clouds.

Ships Damaged: One AK, estimated 6000 ton, type unknown.

Damage Determined By: One timed hit. Much depth charging by escorts afterwards, and distress signals on 500 kcs.

Target: Draft 25 feet, Course 205° T, Speed 7 knots. Range 5800 yards.

Own Ship Data

Speed 16.0 Course 180° T Depth - Surface Angle 0

Fire Control Data

Type Attack: Night surface attack. TBT bearings, radar ranges. Fired on bearings set into TDC by TBT bearings. Gyros matched, spread by offset dials. TDC target speed set on 11.1 knots to generate low power gyro angles.

- 19 -

— page 343 —
1 2 3 4
: 1388 1388 1388 1388
: 344-30 340 337 345-30
: 81 81 81 81
: Low Low Low Low
: 1 Ht.
: No No No No
: 14-3A 14-3A 14-3A 14-3A
: 25775 24151 40206 24500
: 6-4 6-4 6-4 6-4
: 873 2425 3018 915
: Contact Contact Contact Contact
:
: 16-1 16-1 16 16
: 9797 5222 2958 5567
: XPX XPX XPX XPX
: -- & Sec & Sec & Sec & Sec
: 3/80 R 3/80 L 1-1/80 L 1-1/80 R
: Moderate Swells
: U.S.S. HOLLAND
: Aluminum firing pins in exploders.

- 20 -

3 02667

— page 344 —
1944
Date Feb. 12, 1944
Lat. 20°-31' N
Long.117°-47' E

Target Data - Damage Inflicted.

Description:
Convoy of four AK's, one DD and one AS vessel.
Initial contact by periscope at periscope depth, 14,000 yards. Seas very calm, visibility unlimited.

Ships Sunk:
One AK, similar Bordeaux Maru, 6586 tons, page 203, ONI-208-J rovised.

Damage Determined By:
Two timed hits. Depth charging by escort.
Twenty four minutes later heard very distinct breaking up and sinking noises and small explosions from direction of target. DD escort, echo ran-ning, remained in vicinity on bearing of sinking noises for about twenty minutes, alternately starting and stopping his screws. Apparently he was picking up survivors. He then speeded up and faded out in direction of convoy movement. Nothing in sight by periscope one and one half hour after torpedo hits.

Target:
Draft 22 feet, Course 045° T, Speed 75 knots.
Range 1650 yards.

Own Ship Data
Speed 2.75 knots, Course 116° T. Depth 65 feet, Angle 0.

Fire Control Data
Type Attack:
Normal day periscope attack. Fired on generated bearings immediately after final bearing check. Spread by offset dials.

- 21 -

— page 345 —
5 6 7 8
TRACK ANGLE 78° 79° 80° 81°
GYRO ANGLE 162° 160° 159° 167-30°
DEPTH SET 6' 6' 6' 6'
POWER
HIT OR MISS 2 Hits
ERATIC No No No No
MARK TORPEDO 18 18 18 18
SERIAL NO. 53709 53646 53657 53620
MARK EXPLODER MK4 MK4 MK4 MK4
SERIAL NO. 16404 16334 16324 16343
ACTUATION SET Contact Contact Contact Contact
ACTUATION ACTUAL
MARK WARHEAD 18 18 18 18
SERIAL NO. 670 704 663 459
EXPLOSIVE XPX XPX XPX
FIRING INTERVAL -- 10 sec 10 sec 10 sec
TYPE SPREAD 110° R 110° L 110° L 110° R
SEA CONDITIONS Calm - Smooth Surface
OVERHAUL ACTIVITY Submarine Base, P.H., T.H.
REMARKS Exploders had aluminum firing pins.

- 22 -

— page 347 —
1. P.P.I.
The installation of this equipment proved of inestimable value. It is one of the most valuable pieces of equipment on board.

2. SJA.
Throughout the whole patrol a constant battle between the SJA, and the radar officer and technician, was waged. Only by long hours of workin' were we able to keep the equipment functioning; the radar officer and technician are to be highly conratulated on their victory.

Enroute to station the range unit of the SJA failed. The radar officer deslirned, experimented with and installed a variable electric circuit that gave us fair to good ranres with which we were able to make our attacks. For the benefit of other ships who might have this same trouble his report is included herewith.

Report on SJA Range Unit Failure

On Jan. 24, the SJ radar watch reported the failure of the precision sweep and ranre step. The trouble was isolated and found to be within the delay tank. It was found that the lead to the movable crystal was open approximately 7 inches from the crystal, an attempt was made to cut and splice the lead but the stranded wire was found to be crystallized for a length of 9 inches from the crystal. In trying to remove the lead from the crystal holder the crystal itself was broken.

The circuit following was improvised; this gave a step variable from 3600 to 23,000 yards. It was mounted in the adapter control unit, type CW-23 ABX, which was directly over the range indicator. The potentiometer P-I had a 5-1/4 inch pointer mounted on the knob, the graduations were placed on a sheet of fiber board. With switch 3-1 open the scale ran from 3000 to 14,000 yards with 100 yard markers which were 1/16 inch or more apart. With switch 3-1 closed the range was 14,000 to 23,000 yards, 500 yard markers were considered sufficient.

The power supply was obtained from the original range unit. The guard cap over potentiometer P-I in the range unit was removed and 3 rubber covered wires were led to the supply terminal strip for 300 volts, 6.3 volts and ground.

— page 349 —
200 miles northeast of the Mariannas Islands a small negative break of two degrees at 230 feet.

: 120 miles southwest of Formosa a 7° negative temperature break from 210 to 230 feet.

Both of these gradients, combined with the wakeless torpedoes fired, seemed to confuse the opposition.

(P) HEALTH, FOOD AND HABITABILITY

One man suffered a crushed foot upon catching it in the periscope hoist cable drum, incapacitating him for the remainder of patrol.

One possible case of appendicitis, which sulfathiazole quickly quieted.

The pharmacist made efficiently handled these and other minor cases.

(Q) PERSONNEL

As with the case of all other submarines, we are feeling the pinch of unqualified men and officers. School of the boat and rates are held continuously, but there is no substitute for experience.

However, I have nothing but the highest of praise for the crew and officers. Only by every man fulfilling his job to his utmost were we able to gain the success that we had.

The apparently excellent course in radar at MIT paid large dividends through our new radar officer, Lieut. (J.F.) H. W. Straub, USNR.

The Executive Officer, Lieut. J. D. Miller, USN, is to be commended for his uniform efforts at organization, training, and especially for his sc ably supervising the torpedo control party on the night surface attacks.

— page 350 —
(R) MILES STEAMED - FUEL USED
Johnston to Area 3470 mi. 33,000 gal.
In Area 1750 mi. 18,053 gal.
Area to Pearl Harbor 4025 mi. 48,323 gal.

(S) DURATION
Days enroute area - - 18
Days in area - - 11
Days enroute base - - 14
Days submerged - - 13

(T) FACTORS OF ENDURANCE REMAINING
Torpedoes Fuel Provisions Personnel
0 8,570 30 days 15 days
Limiting factor this patrol - expenditure of torpedoes.

(U) MARK 18 TORPEDOES
Eight Mark 18 torpedoes were carried aft. They were fired in two spreads of four each, on following data and results:
| S/M | S/M | Depth | Gyro | Range | Track | Results |
|-----|-----|-------|------|-------|-------||
| #1 | Spread | 65' 2.75 | 6' 1 | 145°-157° | 1200 | 103-110 2 hits |
| #2 | Spread | 65' 2.75 | 6' 1 | 159°-167° | 1650 | 78-81 2 hits |

On the first attack all apparently ran normally. On the second attack sound reported that only three torpedoes were heard to run, possibly indicating one failure. No hits were actually seen, but the times of anticipated torpedo run checked very closely with the times of explosions which followed. The torpedoes of the first spread definitely stopped the target, as he was later seen to be stopped - and was sunk in another attack that night using MK 141's - having radar tracked at speed zero. The second target was heard to sink, and was not in sight 1½ hours after firing.

The routines outlined by the torpedo shop were meticulously followed, and every effort was made to keep the torpedoes in perfect condition.

Each torpedo was charged every seven days. While eight torpedoes were on board aft, the four in the racks were charged on two successive nights, and then exchanged with those in the tubes. In this manner we kept the four tubes always ready, and avoided having torpedoes half way out and on charge. After the first firing it was then, of course, necessary to charge with torpedoes half out of the tubes.

— page 355 —
FC5-4/A16-3
Serial 063

CONFIDENTIAL:
SECOND ENDORSEMENT to
USS SPARFISH Tenth
War Patrol Report.

From: The Commander Submarine Squadron FOUR.
To: The Commander in Chief, United States Fleet.
Via: (1) The Commander Submarine Force, Pacific Fleet.
       (2) The Commander in Chief, Pacific Fleet.

Subject: U.S.S. SPARFISH Tenth War Patrol - Report of.

1. Forwarded, concurring in the remarks of Commander Submarine Division Forty-Four.

2. The ingenuity and persistence of the new radar officer, Lt. (jg) Herman W. Straub, U.S.N.R., is noted with pleasure. His efforts in maintaining the radar equipment "paid off" in the excellent results which the fire control party was able to obtain.

3. The Squadron Commander concurs in the commanding Officer's remarks under periscope (V) in that extensive use of radio is highly undesirable. The enemy RDF stations are good. The decision to transmit patrol results immediately after an action must be carefully weighed in each case; the criterion being to get tactical information on the air so that other units may assist in completing destruction of any remaining enemy vessels.

4. The Commander Submarine Squadron Four congratulates the Commanding Officer, officers and crew on another brilliantly executed patrol by this well organized ship.

C. F. KOLBEN

3 02667
33

— page 356 —
4.53 (844) SUBMARINE FORCE, PACIFIC FLEET 3 0266F
Serial 0447
CONFIDENTIAL
THIRD ENDORSEMENT to
SPEARFISH Report of
Tenth War Patrol.
CONSUBSPAC PATROL REPORT NO. 377.
U.S.S. SPEARFISH - TENTH WAR PATROL.
From: The Commander Submarine Force, Pacific Fleet.
To: The Commander-in-Chief, United States Fleet.
Via: The Commander-in-Chief, U. S. Pacific Fleet.
Subject: U.S.S. SPEARFISH (SS190) - Report of Tenth War Patrol.
(17 January to 29 February 1944).

1. The tenth war patrol of the SPEARFISH was conducted in the area south of Formosa.
2. Again the SPEARFISH conducted an excellent patrol. Attacks on all ships were well planned and very aggressive, and most disastrous to the enemy.
3. The Commanding Officer's remarks regarding radio transmission immediately after attacks are noted. As a general rule transmissions should be made only when the information given will be of value to friendly forces in launching attacks, or when the target is sufficiently important to warrant the immediate attention of various commands conducting the war in the Pacific.
4. The high score of 55 per cent torpedo hits is commendable and speaks well for the performance of torpedoes as well as the skill of the approach party.
5. This patrol is designated as successful for Combat Insignia Award.
6. The Commander Submarine Force, Pacific Fleet, congratulates the Commanding Officer, officers and crew for this aggressive and very successful war patrol. The SPEARFISH is credited with inflicting the following damage upon the enemy:

| S U N K | 1 - Freighter (LIMA MARU class) | 5,989 tons (Attack No.1) |
||||
|         | 1 - Freighter (ADEN MARU class)   | 5,824 tons (Attack No.1) |
|         | 1 - Transport (class unknown)     | 8,500 tons (Attack No.3) |
|         | 1 - Escort Vessel (Corvette Type) | 500 tons (Attack No.1) |

TOTAL 21,813 tons

FILMED
3 02667
34

— page 357 —
1 - Freighter (class unknown) - 5,500 tons (attack No.3)
1 - Freighter (class unknown) - 6,000 tons (attack No.4)
1 - Freighter (BORDEAU MARU class) - 6,567 tons (attack No.5)

TOTAL: 18,067 tons

DISTRIBUTION:
(Complete Reports)
Coinc
CNO
Cincap
Intel.Cen.Pac.Ocean Areas
Conservpac
(Adv.Base Plan.Unit)
Cincant
Comsubsplant
S/M School, NL
Comsopac
Consowespac
Consubsowespac
CTF 72
Comnorpac
Consubspac
SUBAD, MI
ConsubspacSubordcom
All Squadron and Div.
Commanders, Subspac
Consubstrainpac
All Submarines, Subspac

E. L. HYNES, II,
Flag Secretary.

— page 359 —
1. U.S.S. SPEARFISH
: 2. Care of Fleet Post Office,
: 3. San Francisco, California,
: 4. 27 May 1944.

: 5. CONFIDENTIAL
: 6. DECLASSIFIED
: 7. BY: [Signature]
: 8. DATE: [Date]

: 9. From:
: 10. To:
: 11. Via:

: 12. Subject:
: 13. Enclosure:
: 14. 1. Enclosure (A), covering the eleventh war patrol of this vessel conducted in the northern NANSEN SHOT and EAST CHINA SEA during period March 31, 1944 to May 27, 1944 is forwarded herewith.

: 15. J. W. WILLIAMS, Jr.

— page 360 —
U.S.S. SPEARFISH
ELEVENTH WAR PATROL

A. PROLOGUE

Feb. 29, 1944
Arrived Pearl Harbor from tenth War Patrol. Refitted by HOLLAND. Major job overhaul of four main engines. Three day training period. Readiness for sea date, March 31, 1944.

B. NARRATIVE

March 31, 1944

1330 (VW)
Underway for eleventh war patrol, escorted by PC 603, until dark, enroute Midway. Daily training dives and drills.

April 4

0756 (Y)
Moored to submarine dock, Midway Island.

1613 (Y)
Underway for patrol area, air escort + till dark.

April 11
Converted 3A and 3 from F.B.T. to M.B.T.

April 13
Commenced daylight submerged, night surface running; crossing through Southern Islands.

April 16
Entered standby area. Patrolling the sea lanes from Bungo Suido to the south.

April 19

0600 (I)
Sighted a flight of about six planes, unidentified.

April 23

1540 (I)
Sighted floating mine through the periscope, distance 300 yards, on starboard bow! Not wishing to share our area with this fellow, surfaced and sank the mine with 20 Mi guns. Lat. 27-52 N, 132-56 E. Mine was conventional ball type, two thirds submerged, painted red, with several short horns exposed. It did not explode on sinking.

April 25
Entered the area, in accordance with operation order; headed for East China Sea.

ALL TIMES (-9) HEREAFTER UNLESS OTHERWISE NOTED.

April 26
Patrolling 10 miles SE of Tokuna Shima. At dark commenced passage between Tokuna Shima and Okinoyerabu Shima into East China Sea on radar for navigation. Very dark, misty night; visibility almost zero.

— page 362 —
1426 with range 1200 yards, 80 starboard track, target's speed 12, stern right at him; set up checking very well; fired three Mk 18 torpedoes from the stern tubes by steady bearings at.MOT, 1/4 length ahead, 1/4 length astern. Felt very confident that we had him.

: 1427-15 Raised the periscope anticipating the pleasure of witnessing hits. Instead of the generated 100° angle on the bow, it was 30 starboard. He was swinging toward us rapidly, smoke bellowing out of his stack, a bone in his teeth, and sound said he had shifted to short scale pinging right on us. It was very evident that our touchdown pass was not only incomplete, it had been intercepted, the opposition had the ball and was roaring down the field. SPEARFISH immediately went on the defensive with deep depth and full speed. Didn't shoot the fourth torpedo at this point as the set up was very poor - bearing 215° and rapidly changing small angle on the bow - and didn't wish to waste time about getting deep for just one torpedo.

: 1430 Three depth charges, close.

: 1432 Three more, still very close.

: 1434 Three more, this guy is good.

: 1435 Two more. They must be deep heavy charges, or he can spin on a dime.

: 1448 A pattern of three, preceded by a deliberate approach. Each one is shaking the boat heavily.

: 1501 A duplicate of 1448 occurrence.

: 1511 One charge, the last, and the only one that wasn't of first string caliber.

: 1515 He has lost us, and we are pulling away, into wind and sea, at 100 RPM.

: 1653 At periscope depth, echo ranging still going on astern, but can't see him in the mist. As we were but 25 miles from the destroyer base of Amamio Shima, continued to clear the area. Surfaced at 1945 and stood to the northwest.

— page 363 —
1. Master gyro.
2. Air conditioning and ice machine.
3. Both sound sets.
4. Usual lights and cork damage.

On looking back on the whole thing we came very close to success, and so did he. I'm convinced that he picked us up on echo ranging or heard our torpedoes just shortly after we fired, and turned to avoid and attack. If we could have opened the range a little more before firing he probably wouldn't have picked us up, but his alternate port and starboard angles during the approach made adjustment of the firing range rather difficult. My first sighting of an "unescorted" target in five patrols and we had to miss! He would have made a beautiful subject for periscope photography - had momentary visions of competing with NAUTILUS and SEAWOLF. Very momentary, however.

April 30
Spent most of the day staying around a suspicious looking sampan who had machine gun on his pilot's house and large radio antennae, hoping he was a traffic station ship. No luck. Surfaced 10 miles to westward of the islands of Northern Nansai Sho't, and made passage to the eastward between Akuseki Jima and Kodakara Jima, avoiding several sampans.

May 1
Patrolled to NW of 'Amami-O-Shima.

May 2
Patrolled the 20 mile passage between Amami-O-Shima and islands of Tokara Gunto. On surfacing commenced working up into the areas to the north, which we were told we can use. Made passage again between Akuseki and Kodakara Jima.

May 3
Standing to northward inboard of the island chain.

May 4
0030
Passed 17 miles south of Danjo Gun'to, by radar. No evidence on our radar detector of the reported Jap radar on Danjo. Heading to the northwest on two engines.

0341
Radar-contact bearing 320° T, range 24,000 yards. Commenced tracking while closing. Contact is a convoy of four or more ships with several smaller pips probably escorts, base course 250° T, speed 10. We are on their port quarter and dawn is one hour away.

— page 364 —
0646 SD contact, 7 miles, closed rapidly to 5 miles. Could not see him in the heavy overcast, so submerged and after consideration, most reluctantly gave round number two to the Japs, as it is obviously a long chance against a successful daylight and around on an air escort at target under these conditions of visibility. Did not take the chance since a definite sighting of us by their air screen would undoubtedly spoil all our chances on the special mission which we hope to accomplish shortly. A night chase was out of the question, as at noon today they will either turn right for the Yellow Sea, left for South China, or go straight ahead for Shanghai and with their distance made good today we still couldn't catch them tonight, even if they told us where they were going.

May 5: Patrolling 60 miles west of Danjo Gunto, only sampans, and a radar contact at 20,000 yards on what proved to be a cloud of some sort. The fuzzy pip plotted as speed zero and grew weaker as we approached, fading out entirely at 7000 yards.

May 6: Same location as yesterday.

0220: SJ radar contact bearing 291°, range 22,000. Commenced tracking. This is no rain cloud - but a mass of ships, on base course 070° T, speed 8 knots, and this time we are on their bow, plenty of time for at least one attack and probably more; our luck looks like it has taken a change for the better. It is a bright moonlight night, moon two days from full and due to set at 0437. Plan to make a surface attack immediately, closing to as close a range as possible in this visibility, shoot, withdraw, reload and get in another attack at closer range immediately on moonset. Headed in from the starboard bow of the convoy, sighted ships at 13,000 yards, and called angles on the bow from 8000 yards in.

— page 365 —
0345
The convoy was an irregular formation of about ten
freighters in two or more haphazard columns, many
escorts, some small, some large. Could see one escort
on the starboard quarter, and one on the starboard beam,
but none on the starboard bow. On the left leg of their
zig the starboard beam escort was thrown well back on the
quarter, so when they zigged left at about 5000 yards
SPEARFISH made a run at 15 knots on all four engines,
picked out the biggest freighter we could see, who was
#3 from the lead, and commenced firing at

0348
with the four bow tubes at the target, range 3100 yards,
85 starboard track, gyros almost zero. Reversed course
to the right to keep clear of the starboard escort's now
about 3000 yards away, and at

All hands on the bridge saw the stern tube target take
at least one blinding, vicious hit directly amidships
which, with his explosive cargo of some sort, literally
blew him into a million pieces. He completely disappeared
in about one minute after the explosion.

Green lights, red lights, depth charges, possibly more
hits in other freighters, gun fire and flashes, heavy
smoke and changing angles on the bow of all ships now
gave a very confused picture. Put the center of the
convoy astern and called for all speed.

Just as I thought we were getting away free the flanking
starboard escort came to life and commenced challenging
us by blinker gun with "BH". Put him astern, range
3800 yards. When we didn't come back with an answer
he opened up with his bow guns, and poured on the coal.
The chase was on. By the time he got up to speed, the
range was 4000 yards, and by pulling everything we had
we made 18.4 knots in a fairly choppy sea; the best he
could do was 17.7. His gun fire at this range was only
fair; he appeared to have a bow gun of about 3" size.
With moonset in half an hour I felt our chances of
shaking him and doubling back for another night attack,
or at least position for a day attack were pretty good.
If we dove all hope of further attack was gone, and
of course it would bring on the inevitable depth
charging by him and his friends, of whom there were
plenty in the vicinity.

— page 366 —
0420 SJ PPI picked up an aircraft coming in rapidly. Not knowing the planes capabilities made a full power dive to deep depth, and rigged for depth, charge. Last range on the plane was 3500 yards.

: 0432 The first depth charge, very heavy, and preceeded by a short rumbling noise. This was followed by similiar charges at about one minute intervals, a total of eleven, each of which shook us up considerably. The last one at 0452. Again we pulled away into the wind and sea at 100 RPM.

: 0600 Periscope depth, all clear, set course 270 for the scene of the night shooting to see if we had any cripples.

: 0647 Heard echo ranging, and shortly thereafter sighted cur bow tube target now confirmed to be a big HKKKA modern freighter of HOKKA1 Maru class, 8360 tons. He was guarded by a large PC or corvette, one trawler, both echo ranging, and by the time the approach was over sighted three different type airplanes circling him. The AK was dead in the water, down by the stern and listing to starboard, drifting slowly with the wind and sea slightly abaft his starboard beam. Decided to work around to windward of him, and come in directly on his line of drift so that our fire control would be the best possible. It was a long way around as several times I turned off to keep clear of the pinging trawler, and did not wish to use much speed in order to save the battery for the inevitable depth charging. Considered waiting until dark, but felt that with the bright moonlight our chances were better submerged with this problem. Also went on the theory of attacking while the opportunity presents itself as they might get him underway or get more help if we waited. Finally at 1130 we were 3000 yards away, with him drifting very slowly directly away from us. Commenced closing in with him dead ahead, and each 15 minute bearing checked within one quarter of one degree. Came in with the torpedoes set in low power, planning to shoot, dependent upon the escort situation, at a close a range as possible, but willing to accept, if forced, any range under 6000 yards, as the set up was perfect. We were exactly on his drift line with an angle on the bow of 110 starboard. As we passed 3000 yards range the trawler, who had passed ahead of us about 2000 yards and was drawing off to the right, suddenly shifted to short scale pinging in our direction, and reversed course. As he had not used short scale during the last five hours, and his course change was definitely not in accordance with his previous plan, I felt that he was developing a contact with us. Therefore made the tubes ready, and at,

— page 367 —
1215
fired +he four bow tubes at +the freighter, spread from inside his stern +to inside his bow. In view of all +the air activity and +the close +trawler immediately went deep, rigged for depth charge. On+the way down sound reported sharp small explosions, resembling our 20 Mh's, exploding on +the water, probably aircraft +straffing. Also heard +three light aircraft bombs on +the way down.

: 1220-15
Two torpedo explosions, just+right for +the range. Sound reported many smaller explosions shortly afterwards. I believe +the target sank at +this time, as he already had considerable damage from +the original hit.

: 1223
Depth charging by +the escorts commenced in earnest. The same sort of heavy explosions as earlier +this morning, twenty-seven in 20 minutes +this +time, and each one heavily jarring +the whole ship. At 1324 one distant explosion, and 1334 a faint explosion proved our favorite maneuver had again slipped +them.

: 1445
Periscope depth, +target not in sight+, evidently sunk, and all clear.

It has been an eventful 12 hours, and our morale which was getting low after our first +two contacts, is definitely much better.

: 2000
Surfaced, battery gravity 1145. The convoy is at +their evident destination, Negasaki, by now.

: May 7
Dove 20 miles west of Oji Shima. During +the early evening patrolled 10 miles off Kusakari light+, +the navigation light+ burning with list+of characteristics.

: May 8
Dove 12 miles ahead of a vessel which we had picked up on 3J at 6250 yards about 0300. At dawn identified him +through periscope as just a bigger +than usual sampan. During early evening patrolled 10 miles off Gaja Shima light+, +this one also burning as listed.

: May 9
Passed between Akuseki and Kodakare Jima, for +the +third time, during early morning hours. Dove in +the straight between Amami-O-Shima and Tokuro Gunto.

: 0922
Heard echo ranging and shortly thereafter sighted +tops of convoy +to +the west. Commenced approach. Convoy was one medium and four small marus, +the largest identified as +the clipper bow Terukini Maru, 3589 tons, base course 0100 T; speed 7 knots, escorted by one PC, +three or more +trawlers, and at least +three aircraft+. Our luck had +reverted back to +its former breed, for we were too far +to +the east on sighting +them, and +the closest range reached was 4200 yards. Commenced trailing astern. Had smoke in sight until 1230.

— page 368 —
1604
A study of the course and speed of the convoy showed that if we were to get a crack at them tonight before they entered the Osumi Gunto we had to do some surface chasing, so at.

: 1740
Through high periscope sighted trawler ahead which I think was the trailing escort. Dove, feeling we had made up the necessary distance. Worked around him submerged and at. 1951 started to surface but radar range showed him 3500 yards. Waited for a little more dark and at.

: 2010
surfaced in pursuit of the convoy.

: May 10
Searched for them until we covered their probable entrance into Osumi Gunto through Cornet. Straight, but they either got there ahead of us, or turned off somewhere along the line. Doubled backed and searched along the island chain, but still no luck. This was another tough one to lose, even though the targets weren't of the best.

: May 11-12
Patrolling the same straight, 18 miles from land north, west and south.

: May 13-14
During the early morning hours of May 13 moved east to Long. 1320-30 E and patrolled there, nothing sighted.

: May 15
Commenced return passage in accordance with operation order.

: May 18
Surface cruising, enroute Midway, 200 miles north-east of the Bonins.

: 0456 (H)
Strange radar interference on the S.D., submerged for one hour.

: 1526 (H)
More interference as before, submerged for another hour, feeling that we were then dodging Bonin air patrols. Heavy overcast skies. Surfaced at 1631.

— page 369 —
1713 (H) Sighted submarine broaching or surfacing on the port quarter, SJ range about 5000 yards. Made quick dive to 140 feet. From the brief view obtained, and the fact he was probably surfacing, decided he was probably friendly and just wanted to have company.

1721 Periscope depth, the surfaced submarine about 8000 yards away, looks like U.S. submarine. Fired recognition signal and also sent it over QC. Submarine appears to be opening out to westward.

1730 Surfaced - our "friend" is rapidly going over the hill to the westward. Probably GUITARRO, (6 days out of Midway) who didn't like being around a submerged submarine. Resumed course to the east.

1919 In the gathering dusk sighted to the S.E. a trawler, distance about eight miles, probably the 500 mile Tokyo lookout. With insufficient time before complete dark to properly look him over, before engaging him, and from the fact that he was lying to, again resumed base course.

May 23 At dawn rendezvoused with U.S.S. STEELHEAD and air escort, and at.

0858 (Y) Moored submarine dock, Midway.

1530 (Y) Underway for Pearl Harbor.

May 27

1130 (VI) Moored Submarine Base, Pearl Harbor.

— page 370 —
1. 1400 28-33 14,000 180 12 Echo Rang. Attacked
2. 5-4-44 127-10 & escorts 24,000 10 R -
3. 0215 32-16 Convoy,AKs 070 8 R Attacked
4. 5-6-44 127-08 & escorts 22,000 8 Echo Rang. -
5. 0922 29-00 Convoy, 4AKs 005 Sound
6. 5-9-44 129-58 & escorts 15,000 7 Echo Rang. -

In addition sighted semaphores almost daily and nightly.

G. AIRCRAFT CONTACTS:
1. 0600 28-02 Unidentified
2. 4-19-44 133-35 flight of 6 5 mi. West P -
3. 1602 28-00
4. 4-27-44 128-13 Transport 5 mi. South P -
5. 0647 32-09
6. 5-4-44 126-50 Not sighted 7 mi. ? R -
7. 0420 32-22
8. 5-6-44 127-19 " " 4 mi. ? R -
9. 07-1200 32-18 1 trans.,1 bomber, Various P -
10. 5-6-44 127-16 1 sm.flt.biplane Various P -
11. 0930 29-00
12. 5-9-44 129-58 1 sm.flt.biplane Various P -
13. 0822 28-57
14. 5-12-44 130-01 Bomber North P -

- 10 -

— page 371 —
0626 (Z)    Date: April 29, 1944    Lat.: 28-33 N
    Long.: 128-56 E

Description: New type PG or large escort vessel. Estimated 1500 ton. Initial contact by sound hearing echo ranging sighted in misty horizon through periscope at 14,000 yards.

Ship's Damage: None. Target detected submarine by echo ranging, or heard torpedoes, shortly after firing, and turned toward to evade and deliver counter attack.

| Target Draft | 10 feet |
|||
| Course       | 180°   |
| Speed        | 12    |
| Range        | 1200 yards |

Own Ship: Course 250, Speed 2.5, Depth 65 feet, Angle 0

Fire Control Data

Type Attack: Normal periscope attack, kept stern at target for last 3500 yards. Fired by steady bearings.

— page 372 —
5 6 7
: 74S 76S 84S
: 202 204 213
: 6' 6' 6'
:
: Miss Miss Miss
: No No No
: 18 18 18
: 54193 53194 54141
: 4 Mod. 2 4 Mod. 2 4 Mod. 2
: 16323 16280 16361
: CONTACT CONTACT CONTACT
:
: 18 18 18
: 666 630 737
: Torpex Torpex Torpex
: --- 10" 10"
: By Periscope
: MOT 1/4 1gth.Aft. 1/4 1ength Fwd.
: SUBBASE Pearl Harbor

- 12 -

— page 373 —
1845(Z)  May 5, 1944  Lat. 32-16 N  Long. 127-08 E

Target Data - Damage Inflicted

Description: Convoy of about ten AKs, plus escorts, Initial contact by SJ radar at 24,000 yards. Bright moon-light night.

Ship Sunk: (#1) One AK, unidentified, 6500 tons.

Ships Damaged: (#2) One AK, HOKKAI Maru class, 8360 tons. (This ship sunk in attack #3)

Damage Determined By: (#1) Ship sunk was seen to be hit by at least one torpedo, exploded and disappeared in about one minute after the explosion. There appeared to be a cargo explosion as it was considerably larger than ordinary torpedo explosion.

(#2) One hit-timed and felt on HOKKAI Maru; ship later seen dead in water and listing - Hit was while getting set up for stern target, not actually seen.

Targets: Draft: 25, Course 020, Speed 8, Range #1 - 2900 #2 - 3100

Crew Ship: Speed 14, Course #1 090 Depth - Surface. #2 290

Fire Control Data

Night surface attack, using TBT bearings, radar ranges, visual angles on bow. Fired bow tubes, reversed course and fired stern tubes.

- 13 -

— page 374 —
2 1 3 4 5 6 7 8
TUBE FIRED 2 1 3 4 5 6 7 8
TRACK ANGLE 845 845 845 845 875 875 875 885
GYRO ANGLE 357 359 356 001 198 196 193 199
DEPTH SET 6' 6' 6' 6' 6' 6' 6' 6'
POWER HIGH HIGH HIGH HIGH HIGH HIGH HIGH
HIT OR MISS MISS MISS HIT MISS HIT HIT MISS
ERRATIC No No No No No No No No
MARK TORPEDO 14-3 14-3 14-3 14-3 18 18 18 18
SERIAL NO. 40320 40801 26623 26565 54281 54178 54194 54227
ACTUATION SET: CONT. CONT. CONT. CONT. CONT. CONT. CONT.
ACTUATION ACTUAL

— page 375 —
U.S.S. SPEARFISH
:  TORPEDO ATTACK #3
:  PATROL NO. 11
:  Time: 0315(Z)
:  Date: May 6, 1944
:  Lat. 32-16 N
:  Long. 127-08 E

Target Data - Damage Inflicted

Description:
AK similar HOKKAI Maru, damaged in attack #2. Sighted through periscope at 14,000 yards. Ship was dead in water, down by stern, and listed to starboard, as result of being hit in attack #2, guarded by PC, trawler and air escort.

Ship Sunk:
One AK, similiar HOKKAI Maru, 8360 tons.

Damage Determined
By:
Two timed hits, followed by breaking up noises. Target dead in water, down by stern and listed to starboard, was in sight for six hours during approach. Not in sight after returning to periscope depth two hours after firing.

Target:
Speed 0, Heading 125, Draft 28 feet, Range 6000

Own Ship:
Speed 25, Course 063, Depth 65 feet, Angle 0

Fire Control Data

Periscope attack. Approached directly from up wind of target; target drifting slowly exactly away from submarine.

— page 376 —
1 2 3 4
: 118 118 118 118
: 35930 35945 00100 35930
: 81 81 81 81
: LOW LOW LOW LOW
: MISS MISS MISS MISS
: No No No No
: 14-3 14-3 14-3 14-3
: 40238 23784 40623 39232
: CONLACT CONLACT CONLACT CONLACT
: -- CONLACT CONLACT --
: 16-1 16-1 16-1 16-1
: 12599 12982 10465 2970
: TORPEX TORPEX TORPEX TORPEX
: -- 8" 8" 8" 8"
: 1/40R 1/40L 3/40R 3/40L
: CALM
: USS HOLLAND
: Sunk AK damaged in Attack #2

- 16 -

— page 377 —
1. MINES
Sighted drifting mine Lat. 27-52 N, Long. 132-56 E. Mine was conventional ball-type, two-thirds submerged, with several short horns exposed. Painted red. Sank mine with 20 MM fire, it did not explode.

J. ANTI-SUBMARINE MEASURES
Each convoy sighted had one or more aircraft escort, as well as numerous surface escort.

While being chased by small escort after night attack, made aircraft contact on PPI at 0420(H), one hour before sunrise, 15 minutes before moon's onset, forty minutes after attack. We were about 100 miles from nearest air base.

Each AK sighted through periscope had cut down mast.

Depth charges sounded heavier than those previously experienced. Both echo ranging and listening were employed.

PG attacked either picked us up on echo ranging or heard our torpedoes, as he was swinging towards us at moment torpedoes were due to hit. Think we were also detected by echo ranging just before firing in attack #3.

Numerous sampans, some armed and with large radio antennae, seen throughout area.

K. MAJOR DEFECTS AND DAMAGE
Depth charging by the PG caused following damage:
Gyro motor generator brushes knocked out of alignment. Air conditioning and ice machine sea valve stem shattered. Sound gear electric contact makers distorted.

On May 11 we operated on one shaft for four hours while electrically bypassing a grounded main motor field coil.

The main storage battery of this vessel should be renewed before another patrol. Its capacity is now 97%, and it gasses excessively on discharge.

The main engines are scheduled for renewal, and it is hoped that the new engines will not require the constant upkeep that the HOR's have required.

L. RADIO
Reception satisfactory.

— page 379 —
U. MARK 18 TORPEDOES

:  Eight mark 18 torpedoes were carried. The first salvo of
:  three missed, but not due to torpedo performance. The second
:  salvo of four sank a medium AK. Same remarks apply as in
:  report of Spearfish Tenth War Patrol.

V. JOINT SUBMARINE AIRCRAFT OPERATIONS

In accordance with the operation order a watch on 4155 KCS
was stood while in the area. The first contact report was
received on May 6, receiving a total of six reports until
departure from the area. Although we were not in the right
positions to use any of this information, I believe that
this combined operation will become a valuable aid to submarine warfare in the China Seas.

The following suggestions are offered:

(1) Rebroadcast of contact reports should be sent at 1200
GCT, rather than between 1800 and 2000 as at present. All
reports we received were on the 1800 schedule - getting
them at 1200 GCT would not only save six valuable hours,
but these are six hours of darkness which could well be
utilized for running for position.

(2) Three of the reports gave no course or speed of the
enemy. Although I realize speed is hard to estimate from
the air - an idea of the general course would naturally
greatly improve the value of the information.

(3) NKN has an excellent signal with sufficient power and
little or no interference. Occasionally coming up and making
V's plus the call sign would assist in frequency checking.

(4) Judging from the location of some of the contacts our
heartiest respects go to the Fourteenth Air Force.

— page 380 —
1. The Corvinder Submarine Division FORTY-FOUR.
To: The Corvinder Submarine Division FORTY-FOUR.
Via: The Corvinder Submarine Division FORTY-FOUR.
The Corvinder Submarine Force, PACIFIC FLEET.
The Corvinder Submarine Force, PACIFIC FLEET.

Subject: U.S.SR. SPEARFISH ELECVONTH WAR PATROL - CORRECTS ON.
1. The clevonth war patrol for SPEARFISH lasted fifty-seven days and was conducted in the Northern NAMSEI SHOTO and EAST CHIN SEA areas.

2. Torpedo Attacks.

(a) Attack No. 1. While conducting subrogated patrol, sighted through periscope a PG or similar escort vessel at 14000 yards, zigzagging at twelve knots. SPEARFISH pulled 1200 yards off his track and fired three Mark 18 torpedoes from stern tubes. Target evidently detected submarine by echo ranging or heard submarine fire torpedoes and heeded for source of noise causing torpedoes to miss. SPEARFISH was forced to deep submerge and subjected to accurate depth charging with heavy, deep charges. The trytorpy, air conditioning and ice machine, and sound equipment were damaged and put out of commission.

(b) Attack No. 2. Initial radar contact at twelve miles on 8 knot convoy of ten frigicthors in irregular formation of two columns. Cawoy was heavily escorted by miscellaneous small ships, disposed around the convoy. Night surface attack on the third ship in rear column, a 8360 ton freighter. Four bow torpedoes were fired at 3100 yards on an 85 starboard track, using small gyro angles, of which one was a hit. SPEARFISH reversed course to the right and fired four stern torpedoes at 6500 ton freighter at range of 2900 yards, 90 starboard track. Two torpedoes hit the second target which exploded as though carrying ammunition or other similar cargo. Submarine personnel heard and felt the effects of the arc hit on first target.

— page 382 —
5. SPEARFISH will depart for San Francisco Bay area for overhaul, accomplishment of outstanding alterations and reengining.

6. The commanding officer, officers and men are congratulated on completion of a successful, aggressive patrol on which damage was incurred by the enemy.

E. R. STINBURNE,
Acting.

— page 383 —
11/rg
FC5-4/A16-3
Serial: 0214
C-O-N-F-I-D-E-N-T-I-A-L
SECOND ENDORSEMENT to:
USS SPEARFISH Report
of Eleventh War Patrol.

From: Commander Submarine Squadron FCUR.
To: Commander-in-Chief, U. S. FLEET.
Via: (1) Commander Submarine Force, PACIFIC FLEET.
       (2) Commander-in-Chief, U. S. PACIFIC FLEET.

Subject: U.S.S. SPEARFISH Eleventh War Patrol, Comments on.

1. Forwarded, concurring in the remarks of Command-er Submarine Division FORTY-FOUR.

2. The Commander-Submarine Squadron FCUR congratulates the Commanding Officer, officers, and crew on the successful completion of an excellent, aggressive patrol.

C. B. MONSEN.

— page 384 —
12-10/A16-3(15)/(16)
Serial 01101
CONFIDENTIAL
THIRD ENDORSEMENT to
SPEARFISH Report of
Eleventh War Patrol
CONSUBSPAC PATROL REPORT NO. 439.
U.S.S. SPEARFISH - ELEVENTH WAR PATROL.

From: The Commander Submarine Force, Pacific Fleet.
To: The Commander-in-Chief, United States Fleet.
Via: The Commander-in-Chief, U. S. Pacific Fleet.

Subject: U.S.S. SPEARFISH (SS190) - Report of Eleventh War Patrol. (31 March to 27 May 1944).

1. The eleventh war patrol of the SPEARFISH was conducted in the Northern Nansei Shoto and the East China Sea.

2. The SPEARFISH conducted thorough area coverage. Of the four contacts worthy of torpedoes, the SPEARFISH was able to conduct attacks against two of them. The attack on the convoy in the early morning hours of the 6th of May was exceptionally well carried out. The tenacity of the SPEARFISH in "hanging on" the next morning to sink a cripple of the attack from the night before was outstanding.

3. This patrol is designated as successful for Combat Insignia Award.

4. The Commander Submarine Force, Pacific Fleet, congratulates the Commanding Officer, officers, and crew for this aggressive and successful war patrol. The SPEARFISH is credited with having inflicted the following damage upon the enemy:

S-U-N-K
1 - Freighter (class unknown) - 6,500 tons (Attack No. 2)
1 - Freighter (HOKKAI MARU class) - 8,400 tons (Attack No. 3)

JUN 24 1944
TOTAL 14,900 tons

C. A. LOCKWOOD, Jr.,

Distributor and authentication
PROGRESS SECTION, 09.05.4

— page 386 —
1945
CONFIRMED
DECLASSIFIED
From:  U.S.S. SPARROW
To:  Commanding Officer, United States Fleet
Via:  (1) Commander Submarine Division FORT-FOUR.
        (2) Commander Submarine Squadron FOUR.
        (3) Commander Submarine Force, PACIFIC FLEET.

Subject:  U.S.S. SPARROW, Report of War Patrol
Number TWELVE.

Enclosure:  (A) Subject report.
        (B) Track charts.

1. Enclosure (A), covering the TWELFTH WAR PATROL of this vessel conducted in the Nampo shot area, during the period, 12 November, 1944, to 24 January, 1945, is forwarded herewith.

C. C. COLES.

FILMED
1084862

— page 388 —
12 November
1330 (VJ) Departed Pearl in company with PC 1077 in accordance with Combat Service Order 379-44. Set course for Saipan. Made dive to test depth and found boat surprisingly free of leaks, released escort at dark and went on our way. Made training dives enroute, held battle problems and trained reconnaissance party.

15 November
1950 (X) "While testing firing circuits, had hot run (lit. 16-2) in #1 torpedo tube. See Remarks" section.

16 November
Crossed International Date Line and skipped this day.

20 November
0752 (L) Sighted unidentified plane (Aircraft contact #1). Submerged.
0825 (L) Surfaced, all clear.
1117 (L) Sighted NAVIS distant 5 miles - submerged again. (Aircraft contact #2)
1144 Surfaced, all clear.

21 November
1000 (K) Made rendezvous with BLENNY, TRIGGER and escorting DD, proceeded to Saipan.
1600 (K) Moored alongside PITADO in TANAPAG FABER, Saipan. Removed excess classified material to FULFON, torpedo of with fuel and lubricating oil, received two light 16-1 torpedoes, accomplished minor repair items.

22 November (All times "Item" from here on.)

0910 Underway from FULFON in company with BLENNY and escorting DD, set course for safety lane. Fathometer has caused many doubts to date, checked by FULFON and pronounced satisfactory, subject to deep water test. May have defective projector head caused by resting on keel block during last docking.

1030 Test of fathometer in water over 20 fathoms shows no return echo whatever. Informed CDG 17.7 of intention to return to Saipan with escort after BLENNY leaves. (SPARTISH serial 3).
1830 Moored alongside FULFON again, commenced readjustment of fathometer.

23-25 November
Adjustment and underway tests of fathometer.

— page 389 —
25 November
1600 Underway in company with CREPANG, SEGUNDO, RAZORBACK and escort heading for joint zone. Will leave others at outer end of zone and proceed on special mission. For detailed report of special mission see SPEARFISH Top secret serial 001 of 6 December, 1944.

5 December
Special mission completed, returning to Sejapan.

7 December
0610 Sighted escort and proceeded to Saipan, mooring alongside FULTON. Completed voyage repairs, took on fuel and provisions. Changed time zone to -10, "King".

10 December (All times King unless otherwise noted)
0903 Underway from FULTON (escorted until 1500) proceeding on patrol. Made trim dive while escort was in vicinity, no major leaks.

12 December
0715 Received assignment of station for B-29 strike tomorrow. Head seas have held us back, probably will be somewhat delayed reaching station.

13 December
1034 On intermittent keying of SD radar, had contact at 24 miles.
1037 Sight contact with aircraft at 10 miles. No IFF, twin engines. Submerged and avoided detection. (Aircraft contact No. 8).
1056 Surfaced, all clear.
1137 Another SD radar contact at 18 miles, followed two minutes later by sighting two BENTY bombers coming in. (Aircraft contact No. 9). Submerged.
1159 Surfaced, all clear. Just prior to surfacing, sighted several B-29 bombers headed north, and on surfacing fired recognition flare to wish them "God spook". One flight passed directly overhead at about one hundred feet, then went on their way. Sighted three more flights during early afternoon.
1302 Radar contact at 11 miles, closing, no IFF. Possibly B-29, but submerged to play it safe. Stayed down until we expected the B-29s back. (Aircraft contact no. 10).
1644 Surfaced, all clear.
1658 Radar contact at 10 miles, no IFF. Possibly a returning B-29 but went down anyway. (Aircraft contact No. 11).
1718 Surfaced, all clear. Harefoot had many SD radar contacts, some with and some without IFF, and sighted one returning B-29.

— page 390 —
1852 sD radar co:act at 20 miles, with bro: IFF return, diagnosed as distress signal. Att:ompted to raise him on VHF to sec if ho: woro in trouble, to no avail. Fired green Vorys stars when ho: was about 4 to 6 miles away, no return. (Position: Lat. 25° -43' N, Long. 139° -55' E.) Circled on station, tried every means known to establish contact, and finally lost distress signal at about 30 miles. Hoard a few minutes later that plane 1V532 had gonc down on IWO JIMA (this from SORSE) but still hopcd the plane was off course and nearby. Searched nearby area romainder of night waiting for more information from CTG 17.7.

14 December
Continuing search, no new information. Shifted search locu to an estimated position of the downed plane, based on the closest approach to us and his probable course, and spent day running a rottiring search curve from this point.

15 December
Had orders to cover air strikes on IWO JIMA, took position about 40 miles to southwest to be on hand if needed. A completely uneventful day of surface cruising. Plan to go in to IWO tomorrow and so if any reinforcements are being sent in after all those air strikes.
Set course to round IWNAH IWO JIMA for our projected trip in.

16 December
South of IWNAH IWO JIMA, started rounding the island at 10 miles.
Balked again - received orders-to cover air strikes again today, so roversed courses to get to a daylight patrol station southwest of IWNAH IWO JIMA.
Dawn trim dive found us in good position, stayed down to avoid detection until about time for first strike (estimated, since no strike times were given us).
Surfaced, standig by.
Liberator approached to within one mile, circled, then headed out. On the chance that he was trying to get us to follow him to someone down, follow him we did for an hour, finding nothing. It appears that he was being "nosey" rather than helpful, but we were around:solely to let no chance of rescue escape, and he did not take us out of our chosen vicinity.
No visible activity; started heading out to be on station for B-29 strike tomorrow.

17 December
When within 10 miles of our assigned station in right field, received news of another 24-hour delay in the strike. Cannot get to any place for effective patrol and still return to station assigned, so decided to spend day sub-morged on station.

— page 391 —
0644
1824
2040

: 2355

: 0830
0859
1001
1038
1251
1420
1543
1752
1756
1807

: 1762
2nd Lt. Kennedy R. Childester (0-761562)
2nd Lt. Clifford B. Smith (0-686872)
2nd Lt. Jay L. Jokilke (0-696120)
Sgt. Edmond G. Smith (17073835)
Sgt. Richard J. Grinstead (34396212)
Cpl. Stephen J. Darienzo (32715040)

: 5 -

:

— page 392 —
1817 Set course for other group of survivors reported, at flank speed.
: 2102 Having passed through reported point and probable errors, slowed to 10 knots and commenced night search plan. Night absolutely black - I doubt that we could have seen a cruiser at 1000 yards.
: 2309 Sighted a red flare or rocket bearing 2250 T, range indeterminate but probably under 20 miles. Headed over, making the ocean look like Fourth of July with very stars. Position: Lat. 26° -42' N, Long. 140° -35' E.
: 2310 Sighted three or four red lights looking very much like tracer bullets, three points on starboard bow. From this time on, received no reply to any rocket or very star fired.
: 2344 Submerged and headed into wind at 2 knots, depth 140 feet. Intend to reverse course at 0300 and await sunrise. The following factors were taken into consideration in arriving at this decision:
   (a) We had passed close to this point on the way east some six hours earlier.
   (b) Japanese submarines and a destroyer had been reported seen within easy steaming distance of the point.
   (c) Night was absolutely black, with visibility of a dark-ened ship at possibly 1000 yards. The horizon could not be made out.
   (d) After the flare and "tracers" we had had no response to our rockets.
   (e) 8T radar had proven unable to maintain contact on a PC at 5600 yards - it was doubted that it would pick up a submarine with the docks awash beyond 1500 yards.
   (f) Wind was very light (4-7 knots) which would not produce too much drift if the flare had come from a life raft.

In short, the situation, as it failed to develop, looked too much like a bear trap and we decided against playing bear.

20 December

: 0742 Surfaced and resumed search. During the day we sighted many logs, several new oil drums and some debris, but nothing from a plane or indicative of our survivors.

ENCLOSURE "A" - 6 -

— page 393 —
1020 Sighted Liberator bearing 290° F, thought he was going to aid us in the search but he merely came close aboard, exchanged recognition signals and departed to the southeast. Could not raise him by VHF.
: 1906 Set course 090° F to haul clear and send word to CMG 17.7 of results to date. Our presence is probably known by now, and there is a distinct possibility by the reported rafts are the same.
: 2218 Sighted a plane close aboard, twin engines, Divod. (aircraft contact No. 12).
: 2245 Surfaced, all clear. Started sending sPENISH messages 201047 and 201114.

21 December
: 0050 Finished transmission. APR contact on 150 megacycles, getting stronger.
: 0057 Enemy radar contact increasing rapidly in strength, submerged to 140 feet. (aircraft contact no. 13).
: 0137 Surfaced, all clear. Headed back to arrive at initial search point at dawn. Weather getting worse, wind 20 knots with heavy seas, frequent rain squalls limiting visibility to 500 yards. Spent daylight hours searching with negative results. Weather conditions precluded assistance by search planes.

22 December
: 2259 Radar jip bearing 030° F distant 10,250 yards. (Ship contact no. 3). Although first quarter moon was up and horizon clear and sharp, contact was not sighted. Started tracking, keeping range open, and got results varying from 2 to 13 knots on any course with a general trend to southeast. At Radar reported contact lost. Headed back on last true bearing to reestablish contact, but he never returned to the scope. From the suddenness of appearance and disappearance and the completely erratic range and bearing rates, grave doubts have arisen that we had any real target, however no other explanation is known. From our position arc the general trend decided it was possibly a submarine heading for IWO JIMA, so set course for that island hoping to intercept.

23 December
: 0643 Made dawn trin dive. Just before going down received orders from ConsubPac to remain north of 27° North beginning at 2200 (K) tonight, and requiring acknowledgment, ending our hopes of a submerged reconnaissance of IWO to pick up our friend of last night.

ENCLOSURE "A" - 7 -

— page 394 —
0757: surfaced to send out acknowledgment. Could not raise PHI so sent it to FULFON on 4156 kcs. for forwarding.
: 0839: Obtained receipt for our message, submarged to let IWO search planes get tired of hunting for us.
: 1817: surfaced.
: 1827: Detected enemy radar on 160 magacylos.
: 1830: Had SD radar contact at 24 miles - he did not close, for once. (Aircraft contact no. 14).

24 December
: 0518: APR had strong, sweeping contact, 100 magacylos.
: 0558: SJ radar got single pj bearing 030° relative, at 12,000 yards, did not reappear on subsequent sweeps. Two minutes later, APR reported strong contact, steady on, 100 magacylos. Evidently our one pj was a low-lying plane who circled around and then found us. Submerged. (Aircraft contact no. 15). Conducted submerged patrol of approaches to CHICHA JIMA.
: 1814: Surfaced.

25 December
: 0643: Submerged for periscope patrol.
: 1812: surfaced.
: 2139: Received message ordering us to now lifeguard station - altered course accordingly.

26 December
: 0644: Submerged, proceeding to station.
: 0859: sighted mast bearing 273° true beyond horizon. Headed toward to investigate. (Ship contact no. 4).
: 0904: Came up to 55 feet (12 feet of periscope out) and could make out mast and stack of one DD or DE and masts and stacks of four masts. Could not see waterline or decks. DD looked to have about 300 angle on bow, masts 600 to 800 angle on bow. Went to battle stations.
: 0937: Successive analyses showed targets to be headed south and we were but two degrees forward of their beam on sighting them, at their minimum range. Scoured from battle stations and decided to surface, send out contact report and continue to station, based on following reasons:
   1. We were about 100 miles from CHICHJIMA, their apparent destination.
   2. An end-around attack would have taken us nearly to the blind - bombing area.
   3. Convoy probably had air cover already or would have it very shortly, greatly extending the end-around distances.
   4. We had been ordered to station Two for air strike next day. An end-around would have prevented arrival until after dark on 27th.
   5. If the information could reach CHI 17.7 and 6th Bomber Command promptly, the convoy could easily be intercepted by aircraft.

— page 395 —
1038
surfaced and started sending out contact report direct to CTG 17.7 in FULTON. For one hour it was a battle of telegraph keys trying to get a receipt, with probably excellent results by the Nips. . .

1044 The expected air cover for the convoy came out of a rain cloud, patrolling over convoy. (Aircraft contact no. 16). Either one or two planes were employed - only one in sight at a time, out from bearing on appearing and disappearing it seemed that two planes were present. Planes patrolled line normal to convoy advance and 6 - 8 miles on each side of track.

1139 Submerged and proceeded to station.

1800 Surfaced.

27 December

0353 SJ radar had single zip bearing 3350 F; range 6000 yards. Nearly full moon was about 100 above western horizon at that time, nothing in sight in that direction - possibly sea return from a particularly heavy wave.

0645 Submerged for periscope patrol.

1100 Expecting B-29 strike, surfaced to listen on lifeguard frequencies. Heard faint voices on VHF from time to time but no distress signals.

1617 Planes should be well past on the way back, submerged until after sunset.

1753 Surfaced, patrolling near lifeguard station.

28 December

0650 Submerged for periscope patrol, proceeding to near patrol area east of SHINA. Because of tendency of caps to use circuitous routing, and from position of our convoy day before yesterday, decided to concentrate for a while on eastern detours of TOKYO-CHICHI track.

1805 Surfaced, having sighted nothing. Seem to be in the midst of a minor typhoon - winds up to 25 knots, sea force 4 or greater. With the sea astern or on the quarter, every sixth or seventh wave goes down the main induction, while with the sea forward of the quarter the lookout have to spend most of their time cleaning binoculars.

2356 Battery charge completed, submerged to ride out the storm. Plan to surface at dawn long enough for fresh air and star sights then go back down.

29 December

0648 Surfaced for sights, typhoon not changed.

0716 Submerged.

1802 Surfaced. Weather moderate, a little, bridge fairly dry with wind and sea between abeam and either quarter.

— page 396 —
30 December
0044 Noted interference on SJ radar.
0046 SJ radar contact at 11,000 yards bearing 305° T. (Ship contact no. 5). Commenced tracking. On closing to 6500 yards, saw what appeared to be a submarine. Since we were not the neutral zone between areas 5 and 4 D thought it might be one of ours in transit, especially after SJ radar interference, so maneuvered to maintain contact while attempting to exchange recognition signals by SJ radar. This was a fatal mistake, because during this period true bearing changed from 300° to 230° T. Tracking showed him to be on base course every T, zigzagging 20 degrees to either side of base course every 5 minutes, speed 16 to 16kts. By making full power on his base course, we were able to change bearing at about 10 degrees per hour, putting us aboard of him at 0400. Room was full, light overcast giving excellent illumination. Found on tracking that radar would lose target at about 14,500 yards, indicating DD or DE size.

0357 Finally acknowledged he had outdistanced us, since we could not hope to gain attack position before dawn and the weather was getting worse. Could not see him at 11,000 yards, which strengthened the radar indication of small size. Stoke off the chas's and started working back along our track in the hope he was going down to pick up a convoy and would load them back through more.

0644 Submerged.
1604 Surfaced. Our storm seems to be moderating, sea and wind still force 4 or better but riding easier. Set course for northern part of area 4.

31 December
0550 : radar contact, 5,900 yards bearing 173° T. (Ship contact no. 4). Put him astern to open out, radar lost contact at 65° yards, indicating patrol or fishing boat size. Not sure, no near full full, very bright.

0642 Submerged for periscope patrol. Wind down to force 3, sea force, the first decent day since leaving IWO. Surrounded, could not pass the weather group, since wind and sea are building up again.

1755

1 January 1845
0659 Submerged for periscope patrol. The patrol area - may it be the last.
1605

0659 Submerged for periscope patrol. The patrol area - may it be the last.
1605

ENGLISURE "A"

— page 397 —
2 January
0005 Wind and sea still building up, boat is a puddle from control room aft. Submerged to ride out the storm, dovoloping a 200-volt ground on after battery on the way down, due to sea water getting to coil tops. No indication of salting or chlorine.
1000 Ship rolling 150 or better at periscope depth and we can see only the top of the next wave with 9 feet of periscope out. Having to go 2/3 or better to keep from broaching. Submerged to 10 feet for sound patrol until sea moderate as a bit.
1805 Rolled to 50 and over at 150 feet.
2255 Surfaced, weather no better.
3-4 hour delay along the line; also found that our present area is due to be occupied shortly. Set course to clear present area, passing to northward of 50 miles S. 1/2 mile. Navigation has been proving much than usual. Now we can not pass week, averaging one fire per 36 hours and that one not too dependable. Being held back by head seas - cannot make over 6 knots by pit log without flooding the ship by over four feet wave.

3 January
0400 Received word of a convoy coming north, course given shows him due to pass through point 10 just left. However, were we to stay there and wait for him, we would be in difficulties area by the time he gets to it. Radio convoy may well change course for a lantern on 1500 BPM, so continued our work today course.

0632 Submerged for periscope patrol.
0845 Sighted HAHIJO SHIP, distant 30 to 35 miles dead ahead. Plan to round the island to northward during the night, and follow our assigned patrol school tomorrow if a other orders are received.
1815 Surfaced and started passage around 1500. SPLIT. 1500 and shows considerable radar activity, probably radar is working. 1500 and shows heavy side lobes, probably from a very large, bad-spiriting antomne.

4 January
0340 Submerged. For the first time in many days the sea is calm, no swells and just enough whitecaps. Surfaced, having sighted nothing. Weather nearly perfect. After running to west all night and to northwest all day, evening star fix put us very close to our 0200 position, showing about 2.5 knot currents.

5 January
0641 Submerged. On northerly course, probably transport between 1500 and 1700 and Empire. (aircraft contact no. 17). Passed over at 3 miles, not sighting W.
1830 Surfaced.

ENCLOSURE "A"

— page 398 —
6 January
0650:  Submerged for periscope patrol.
1642:  Surfaced, nothing sighted.
2220:  Received orders to proceed to rendezvous - headed south.

7 January
1100:  Arrived at rendezvous point, nothing in sight. Commenced steaming in vicinity, waiting.
2530:  Received word our rendezvous would not be effected. Subcourse for baikon.

8 January
0705:  Made dawn trim dive.
1055:  Sighted "BETTY" coming in, not picked up by radar. Submerged. (Aircraft contact no. 16).
1147:  Surfaced, all clear.

9 January
1640:  Received orders to search for downed aviators - reversed course.

10 January
0330:  Arrived at initial point and commenced search.
1119:  B-24 on routine patrol and B-29 searching for our objective wore sighted. B-24 continued had fired.
1907:  Dark; decided to head for area where plane reported sighting flare and patrol in that area during night.
2558:  In position, Lat. 24-31' N, Long. 139-25' E, sighted sighting flare bearing 2565' T, distant about 5 miles. Headed over at full speed, but had no further sight contact. Fired several green and white flares trying to coax a reply, negative results. Stopped to listen, heard nothing (had hoped for pistol fire to attract our attention).

11 January
0055:  Having run 11 miles in this direction of the flare, decided to submerge to maintain position and not be carried off by the wind. Drift of a rubber boat would be approximately one mile by dawn. Rendered course over half hour, opened 2.5 knots.
0635:  Surfaced and resumed search. Established.
0812:  Two B-29 planes came close aboard. Established communications with VHF, told them what we had seen and requested careful search to south of us.
1320:  Planes reported results of very careful search - nothing sighted except a "barge" with a torn sail. Decided to investigate while planes could coach us on. Got position report of barge, then got plane's estimate of our position to check - plane put us 60 miles north of our DR. Barge reported to contain some signs of life.

ENCLOSURE "A" - 12 -

— page 399 —
1550 Planes found "barge" again and gave us course and distance. One plane (437554) remained over objective, other plane searched along our track and adjacent area. 1707 sighted dark sail bearing 260°F. On closing, found a sampan about 100 feet long, engine mounted but not running, sail set forward, going with the wind at about 3 knots. Subsequent plot showed that he was very close to our position at mid-night and could easily have fired the flares. No signs of life. Ordered forward 20 min gun to cut down sail to stop drift. Still no life, decided to sink sampan to prevent further search and contact reports. (Gun attack No. 1). 1732 Opened fire with both 20 MGs guns - not too much damage done except to light planking of deck house, etc. Several large pieces would fly into the air from time to time, making us think we were wracking greek havoc, but after four years of 20 MGs shells she did not seem to be filling too rapidly. Fire reported in control cubicle, reported under control two minutes later. The insultation around the anchorer cables had overheated and started smoking. Started to bear to recover life ring, but found him directly across our bows on 90 track - kicked ahead at standard speed and rammed. As he passed down starboard side, deck party saw two women and small child in forward hold - started over to rescue them when the sampan heeled over, took one wave over the side and sank stern first very rapidly. A great deal of debris floated clear from the after section, and five Japanese scrambled up on it, watching us - there were no survivors from the forward section. Decided to pick up the survivors for possible intelligence value - came close aboard and threw them a line. 1755 Sound reported fast screws dead astern, checked and reported that the screw boat was definite. "Don't anchor flank, lost full rudder. Three of the survivors had apparently gained hand holds along the freezing ports and were able to reach the ladder - the first head appeared over the deck when we were about 1000 yards away from the wreckage, followed in short order by a second and a third. The remaining two were left with the wreckage. Survivors were shackled and taken below, washed, fed, inspected and stowed, one in each torpedo room and the third in the engine room. Our aviator passengers jumped into the breach and took over the job of guarding them, which otherwise would have meant extra watches for all hands. Commenced clearing the area on course 50° from our course to joint zone, will change to final course after dark. Inspector of our prisoners shows that a sorry lot - one has a large tropical ulcer on one leg and diseased-looking tongue, another a possible oral chancre and bad cough and the third a 5" gash in his back (about 1/4" deep) from a bullet. One speaks English somewhat and writes in English with a very nice hand - all appear intelligent. Our Pharmacist's late again proved his worth by quiet, efficient and exact treatment and diagnosis, and isolation of the prisoners.

— page 400 —
12 January
0900 Two prisoners apparently none the worse for their ordeal and glad to be alive. The third has tried to commit suicide by self-strangulation and by bashing his head against the torpedo tubes. Gave him sleeping pills to quiet him.
2230 Our fractious passenger has recovered and again insists on self-destruction. Administered two 1/2-grain morphine Tartarate styrettes, which quieted him.

13 January
0600 Prisoner again fractious, trying to tear up the torpedo room, break his head against the tubes and strangle himself with his bonds. He has bitten his tongue nearly off, and has transformed his vicinity into a pig-sty - a wounded beast could not tolerate the filth he has tried to maintain. Decided to put him out of his misery before he has a chance to do any damage. Administered 2g grains morphine, then jettisoned him over the side, insuring he would not suffer.
1402 Effected rendezvous with escort.
2030 Moored in nest alongside FULTON, TAMPA, FLEER, SALPIT. Took on fuel and stores, removed 13 mark 18-1 torpedoes, received 2 mark 14-1 torpedoes and 2 mark 35's. Delivered our two prisoners to CG 17.7 for further delivery to Commander Forward Areas. Our seven airmen returned to their quarters at SAIPAN under jubilant escort from their squadron.

15 January
1305 Underway from alongside FULTON, enroute PEARL, under escort until dark.

17 January
0600 Lookout sighted a probable floatling mine at 1500 yards ahead. (Position: Lat. 18°-50' N, Long. 152°-37' E). Maneuvered to avoid, then circled to sink it when speed was reduced. Lookout had lost sight of it during the maneuvering, and stated that it was alternately watching and then sliding for some time. Searched area for fifteen minutes without sighting again, then cleared.

21 January
Crossed 180th Meridian; repeated this date.

24 January
arrived Pearl Harbor, F.H.

— page 401 —
28 December to 3 January in the area of the eastward of the IZU SHOTO, we encountered the worst weather I have ever seen in submarines. On any course at any speed on the surface the ship was one large puddle. After slogging, we rolled up to 15° at periscope depth and 8° at 130 feet. Between the IZU SHOTO and the coast of HONSHU two days later, the sea was a mill-pond ruffled by whitecaps.

D. TIDAL INFORMATION

To the eastward of the IZU SHOTO currents were found to be relatively weak, not over 1 knot if that much. To westward of the IZU SHOTO, however, we were set at 2.5 knots toward 105° I for one 24-hour period, a total set of some 60 miles.

E. NAVIGATIONAL AIDS

None encountered. Our best indication of approaching enemy land came from the radar detector - it invariably picked up Jap search radar while land was outside our own radar range.

F. SHIP CONTACTS

| No. | Time    | Lat.    | Type(s) | Initial Range | Est. Speed | Course | How Fast | Remarks |
|-----| 3   | 2259(K) | 12/22   | 139-52'E | Unknown     | 10,250    | 140    | 10       | Tracked. | lost contact. |
| 4   | 0859(K) | 12/26   | 141-57.5'E | 1 DD        | 13,000    | 160    | 10       | Per. (day) | contact reported. |
| 5   | 0046(K) | 12/30   | 143-13'E | DDorDE 11,000 | 180    | 16     | 16       | Chased, got by. | 6   | 0550(K) | 12/31   | 141-38'E | Samoan      | 5,900    | 000    | 6        | SJ Radar | avoided. |
| 7   | 1707(K) | 1/11/45 | 139-49'E | 12,000      | 210     | 3       | 5        | Sight sunk |

ENCLOSURE "A" - 15 -

— page 402 —
1
Number: 11/20
Date: 11/20
Time: 0752(L)
Lat(N): 19-38'
Long.: 158-21'E
Speed: 17
Course: 210
Trim: Surf.
Min. since last SD search: Secured
No.: 1
Type: Mono(U)
Prob.Mission: Search
How Cont.: Light
Init.range(mi): 8
Elev.angle: 2
Range & rel. brg. of plane: Not
when it dets./m Sighted: Not
Sea State: 3
Sea direct(rel): 210
Vis. mi.: Unl.
Cloud ht.: 20,000
Cloud %: 10
Moon-brg.(rel): Day
Moon angle: --
Moon % illum.: --

: 2
Air: 12/13
Lat(K): 1034
CONTA: 24-49'
139-54'E
3 to 7: 14
SEE: 015
REPORT: Radar Cont.
1: 2
OF: BERTI
Search: Search
SPECIAL: Radar
MISSICIN: 24
Not: 'lot
Sighted: sighted
4: 4
045
Unl.
5,000
90
-

— page 403 —
15 16 17 18
Date 12/24 12/26 1/5 1/6
Time 0540 1044 1518 1055
Lat(N) 26-56' 29-26' 33-46' 25-39'
Long. 141-24'E 141-57'E 136-38'E 138-05'E
Speed 10 12 3 17
Course 340 000 320 160
Trim Surf. Surf. Per. Surf.
Min. since last
   SD search secured secured Secured 0
Number 1 1 or 2 1 1
Type U/I PETE SALT SPY
Prob.Mission Search Air cover Transport Search
How Cont. APR, SJ Sight sight Sight
Init.range(mi) 6 12 6 8
Elev.angle Unk. 2 2 4
Range & rel.
   brg.of plane Not Not Not Unknown
   when it det.s/m Sighted Sighted Sighted
Sea state 3 3 2 1
Sea direct(rel) 315 315 270 160
Vis.mi. 10 20(in spots) 20 20
Cloud ht. 3000 1000 3000 2000
Cloud % 70 80 50 60
Moon-brg.(rel) Set Day Day Day
Moon angle
Moon % illum.

H. ATTACK DATA.

U.S.S. SPARFISH GUN ATTACK NO. ONE PATROL NO. ENCLIVE

Time: 1750(K) Date: January 11, 1945
Lat: 23-47'N Long: 139-49'E
Sunk: One medium sampan, 100 tons (estimated). Wooden hull.
Damaged: None.
Damaged determined by: Saw sampan sink.

Details of Action
Sampan appeared deserted and drifting under sail. Expended one pen 20 Mi cutting down sail. Expended four additional pens of 20 Mi ammunition (HE and tracer) on hull, inflicting moderate damage. Maneuvering to board found sampan across our bow, so rammed at standard speed, stopping on impact. Sampan filled readily and sank in about 3 minutes. Five survivors had apparently been hiding behind engine, and they scrambled up in the wreckage - picked up three. One had bullet wound in back, a gash about 5 inches long, no evidence of burning.

ENCLOSURE "A" - 17 -

— page 404 —
1. MISSES.
Encountered one-robable floating mine, east of the HILLS, on 17 January in position; 18° -50' North, 152° -37' East. Lost sight of it while maneuvering to avoid, and could not sink it. Described as a barrel-shaped object with two horns about a foot long. Alternately watching and sinking, appeared to have been in the water a long time.

J. ANTI-SUBMARINE MEASURES AND EVASION FACILITIES.
No remarks.

K. MAJOR DEFECTS AND DAMAGE.
FATHOMER - After departure Pearl Harbor failed to function in water of 10 fathoms or over. On arrival Saipan, unit was adjusted by FULFOLK and seemed to be operating normally. On departure Saipan, operation seemed normal until passing ten fathom curve, then nothing, necessitating return to Saipan. Complete re-tuning of driver and receiver gave desired operation after renewal of one transformer and two tubes.

MAIN ENGINES - Excessive cylinder-liner breakage was encountered at the beginning of the patrol, three liners breaking between Pearl and Saipan. Inspection showed cracks indicating excessive tension in liner studs, yet torsion-wrench readings were proper. All cylinder liner stud nuts were backed off and tightened using a pull of not over 100 lb. on an 18" ratchet wrench (1800 lb-in. torque), after which no liners were found to crack. It is believed that the instruction book for the engines is incorrect or else the torsion wrench is supplied are incorrectly calibrated.

HULL - SPEARFISH is beginning to show her age in the many small casualties that occur. During heavy weather about 1 January, two sections of life line carried away, and weather was too rough to allow men on deck for repairs - they stayed hanging over the side, clanking every time was got up to 2/3 speed submerged. Engine air induction valve became sluggish in power operation, possibly because of burns on operating parts or in the hydraulic cylinder. Many small leaks and valve failures developed, which were aggravating rather than serious. Bow buoyancy vent was an even better not to close once it was opened, and nothing within the boat could be found to cause this condition. Bow and stern planes are a constant source of electrical and mechanical troubles, requiring adjustment or resetting every two or three days.

L. RADIO.
VHF - Operation normal and highly useful, with workable signals from patrol planes up to 50-60 miles.

REH-2 - This receiver is not considered satisfactory. It seems quite insensitive, and the multiplicity of controls is considerably a drawback.

ENCLOSURE "A" - 18 -

— page 405 —
4155 SHIP-SHORE - This circuit was quite useful in our area (Bonins and northward) giving strength five signals at all times. When we used it to clear messages to FULFON, we invariably got the wrong authenticator and apparently could not get a receipt for a message enciphered on ECH until it had been completely deciphered.

LIFEGUARD LEAGUE: It is suggested that at least one dispatch per day be sent the Lifeguard League submarines, and that serial numbers be used. When no dispatches are received for three or four days, the ship cannot be sure she has all necessary information. Contact Group 17.7's dispatch 311721 of December was not received on board until 2120(K), 2 January, or 42 hours after origin. Since movements of adjacent submarines were involved, this excessive delay could have had serious results. Cause for the delay could not be determined.

Our one trial at using the area frequency was a dismal failure. We called KINGFISH more than sixty times in a 36-hour period, during which he was within 100 miles of us, with no response whatever.

M. RADAR
| Contact No. | Enemy Radar Contacts | 1 | 2 | 3 | 4 |
|||----|----|----|----|
| Date        | 11/28                   | 11/28 to 12/2 | 11/28 to 12/15 | 12/2 to 12/3 |
| Time        | 2013(K)                 |        |        |        |
| Lat(N)      |                        |        |        |        |
| Long(E)     |                        |        |        |        |
| Location (enemy) | Prob. A/C | IWC JIMA | IWC JIMA | IWC JIMA |
| Intercept. equip. | AP-1 | - | SPA-1 | 100 |
| Frequency   | 275 | 160 | 100 | 800 |
| PRF         | 50 | 550 | 500 | 800 |
| Pulse width(microsec) | Unk. | 20 | 20 | 80 |
| Lobo Switch | Not Det. | No | No | No |
| Sweep rate | Not Det. | Erratic | Erratic | Slow |
| Action enemy radar | Made 3 sweeps and stopped. | Continuous Search, Land Trained. | Continuous Search, Faded at 40,000 yds steady at 20,000 yds | Continuous Search to replace contact & after bombing raid. |

- 19 -

— page 406 —
5 6 7 8
Date 12/24 12/45 1/5/45
Time 0105(K) 0515(K) 1500(K) 1850(K)
Lat(N) 25-46 26-55 35-20 35-26
Long.(E) 140-36 142-22 140-02 140-02
Location (enemy) A/C KITA I:70 HATIIJO JIMA JIMA

Intercept.equip. 150 100 159 107
Frequency 700 1000 500 1000
Pulse width(microsec) 10 20 12 20
Lobe Switch No No No No
Sweep rate Keyed Not Det. 6 min. 4 min.
Action enemy radar Stronger Continuous Continuous Continuous Search
Signal each time Trained. numerous minor
keyed. lobes.

Contact No. 9 10 11 12
Date 1/5 1/5 1/5 1/5
Time 2115(K) 1830(K) 1839(K) 1920(K)
Lat(N) 35-28 53-51 53-51 53-45
Long(E) 159-43 136-31 136-31 136-35
Location(enemy) MIYAKE KONSHU KONSHU KONSHU

Intercept.equip. APR-1 - SPA -1
Frequency 152 75 155 195
PRF 500 500 1020 Not Det.
Pulse width(microsec) 5 45 12 10
Lobe Switch No Yes No No
Sweep rate Not Det. Not Det. Slow Slow
Action enemy radar Continuous Continuous Continuous Weak Signal.
Search,Faded Search, Search.
at 40,000 yards
steady at switched
30,000 yds at position
above.

N. SOUND GEAR AND SOUND CONDITIONS.

Sound conditions were normal for the area. The transfer of
control gear for Jik-20 gear to conning tower is considered an
advantage, but considerable work was required to quiet the power
train gear. Gear was finally quieted by casting the motor loose
and raising it about 0".045 by shims and by bringing it into
alignment.

O. DENSITY LAYERS.

Nothing abnormal noted.

ENCLOSURE "A" - 20 -

— page 407 —
75
Number men on board: 75
Number men qualified at start of patrol: 46
Number men qualified at end of patrol: 61
Number men advanced in rating: 10
Number unqualified men making first start: 19

The conduct of all hands on this voyage was excellent. The unqualified men "jumped in with both feet" in the job of attaining qualification, and the experienced hands proved able instructors. The Executive Officer, Lieutenant Commander W. GAVIFF, USNR, is deserving of special credit for his work in organizing and training a fine team.

R. MILES STEAMED AND FUEL USED

Pearl to area: 4,315 miles; 58,808 gallons.
In area: 4,895 miles; 51,447 gallons.
Area to Pearl: 4,345 miles; 59,314 gallons.
Special mission (Saipan to Saipan) - 2,991 miles, 37,012 gals.

S. DURATION (includes special mission)

Days enroute to area: 16
Days in area: 33
Days enroute to base: 16
Days submerged: 22

ENCLOSURE "A" - 21 -

— page 408 —
20
Torpedoes 22,000
Fuel (gal) 50
Provisions (days) 10
Personnel factor (days) 10

Limiting factor this patrol - Provision of Operation Order.

U. RADIO AND RADAR COUNTERMEASURES.

None encountered.

V. REMARKS

Mr. 18 torpedoes. On 15 November, tested tube firing circuits with 200 lb. air secured; now, enough air remained in the lines to lift the stop bolt of #1 tube, allowing the starting lever of the torpedo, #55958 (Mk. 18-1), to trip. The torpedo ran for about five minutes and then slowed down. On pulling it, battery gravity was 1,226 and open circuit voltage was 146. Solive a load in the armature circuit burned out, preventing destruction of the motor. Another method of testing the firing circuits has been found, in order to prevent recurrence. Incorrect on at Saipan showed only damage to be blackened commutator. Torpedo was turned in to FULTON and replaced.

Coding. It was noted on very many incoming dispatches that the last group before the internal indicator contained one, two or three Xs at the end, indicating where the on-board instrument stopped. It is felt that this is a quite unnecessary, though minor, strain on our cryptographic systems.

Lifeguard League. Some confusion arose over our assignment to both Lifeguard League and Hit Parade. It is suggested that the Dunkers Derby and String quintet may well be consolidated and a standard doctrine of patrol areas and rescue stations adopted. This would avoid the possibility of two submarines working the same area without knowledge of the presence of the other. Specific observations concerning air-sea rescue are being submitted separately.

- 22 -

— page 409 —
1. The Commander Submarine Division FORTY-FOUR, the SPEARFISH was conducted in the Nampo Shoto Area. The patrol was made two parts and was of 71 days duration with a three-day interim in SAIPAN.

2. The first part of the patrol was conducted in the performance of a special mission. This performance was highly successful. The second part of the patrol was a combination of life guard duty and the normal patrol mission.

3. During the second part of the patrol no attacks were conducted as the few contacts made could not be closed for attack. However, the SPEARFISH was successful in the rescuing of seven Army Aviators from a downed B-29. This is the first instance, thus far, of one of our submarines being able to rescue personnel from a 'ditched' B-29. The SPEARFISH also sank a Sampan and brought back two prisoners from it.

4. The Commander Submarine Division FORTY-FOUR takes great pleasure in congratulating the commanding officer, officers and crew of the SPEARFISH for the highly successful performance of the special mission assigned, for the rescue of seven Army Aviators and for the damage inflicted upon the enemy. The Division Commander further extends hearty congratulations to this fine fighting submarine on the termination of a long series of outstanding successful war patrols.

— page 411 —
2-10(A)/A16-3(18) SUBMARINE FORCE, PACIFIC FLEET
Serial 0111
CONFIDENTIAL

THIRD ENDORSEMENT to
SPEARFISH Report of
Twelfth War Patrol.

COMSUBSPAC PATROL REPORT NO. 654
U.S.S. SPEARFISH - TWELFTH WAR PATROL.

From: The Commander Submarine Force, Pacific Fleet.
To: The Commander in Chief, United States Fleet.
Via: The Commander in Chief, U.S. Pacific Fleet.

Subject: U.S.S. SPEARFISH (SS190) - Report of Twelfth War Patrol (12 November 1944 to 24 January 1945).

1. The twelfth war patrol of the SPEARFISH, under the command of Commander C. C. Cole, U.S. Navy, was conducted in the Nampo Shoto Area. The patrol was broken by a short replenishment period at Saipan. During the patrol the SPEARFISH performed a special mission, a lifeguard duties and offensive patrol.

2. The SPEARFISH carried out a very important special mission in a most commendable manner. This mission is the subject of a separate report. For her thorough and determined performance of her assigned duties, she had the honor of rescuing seven Army aviators from a downed B-29. No opportunity presented itself for further attack, but the SPEARFISH destroyed by gun fire a sampan which was contacted along the lanes followed by B-29 flights. Three prisoners were taken from the sampan. The conduct of one prisoner was a threat to the safety of the ship and the action taken in his case is considered proper.

3. Award of Submarine Combat Insignia for this patrol is authorized.

4. The Commander Submarine Force, Pacific Fleet, congratulates the commanding officer, officers, and crew of the SPEARFISH for this aggressive and successful patrol. The SPEARFISH is being assigned to target and training services after a long, illustrious career record. During her twelve war patrols she has sunk twelve ships for 74,366 tons and damaged ten for 62,544 tons. The Submarine Combat Insignia has been awarded for the last five successive patrols. The SPEARFISH is credited with having inflicted the following damage upon the enemy during this patrol:

SULIK
1 - Sampan
- 100 tons (Gun Attack No. 1)

J. H. BROWN, Jr.,
Deputy COMSUBPAC.

Distribution & authentication on next page.

— page 412 —
12 November 1944 to 24 January 1945.

Subject: U.S.S. SEAPIRISH (SS190) - Report of Twelfth War Patrol

DISTRIBUTION:
(Complete Reports)
Cominch (7)
CNO (5)
Cincpac (6)
JICPOA (1)
ACICPOA (1)
Conservpac (1)
Cinclant (1)
Consusblant (8)
S/School, NL (2)
C0 S/M Base, PH (1)
Cairrace (2)
Consuspac (1)
Consubscap (2)
Ctr. (1)
Ctr. (2)
Ctr. (1)
Ctr. (3)
ConsubscAd (40)
SUBAD, MI (2)
ConsubspacSuborcon (3)
All Squadron and Div. Commanders, Pacific (2)
Substrainpac (2)
All Submarines, Pacific (1)

L. HYMES, 2nd, Flag Secretary.

— page 413 —
1.0 1.1 1.25 1.4 1.6
: 2.8 2.5 2.2 2.0 1.8
: 1.25 1.4 1.6

This microfilm is the property of the United States Government

MICROFILMED BY
NPPSO—NAVAL DISTRICT WASHINGTON
MICROFILM SECTION

D-52254

— page 416 —
35 May 1942
FROM: Commanding Officer USS SPARTAN (SS-150)
SEAL: none
DATE: none

SUBJECT: WARSHIP REPORT

Chronological report of passage from Gibraltar, Java, to Freemantle, Australia. Embarked Commander Submarines, assisted Tides, staff and passengers for this run south. (ASTRO TECHNICIAN, CAPTIONIST, HUTTON)

FILED: War Diary
SECRET SUBMARINE RELIEF ACTIVITIES, Philippines

Sub total 26 army and navy officers and nurses & 1 civilian from Corregidor to Fremantle.

FILED: War Diary
SECRET SUBMARINE RELIEF ACTIVITIES, Philippines

Report of evacuation of personnel from Corregidor, P.I. during JULY 1942. PACKET 29 March-20 May 1942.

Separately under ALLIED NAVAL FORCES BASED SUBMARINE, ALIAS LIA ser SA-116 of 3 Jun 42

— page 419 —
2 - 7 MARCH 1942.
AREA: PASSAGER VITALY, JAYA, TO FREMANTLE, AUSTRALIA

ZONE TIME LEFT: - 2 - 3 MARCH - minus 7 1/2
6 - 7 MARCH - minus 8

FILMED
(SS) 40204
1168

— page 420 —
35 MAR: - At 0100 in accordance with Commander Submarines, Asiatic Fleet, dispatched 651055 of February 1944, assumed command of the U.S.S. STARFISH. Commander Submarines, Asiatic Fleet, hoisted his flag in U.S.S. STARFISH. Embarked the following members of Commander Submarines, Asiatic Fleet, staff: Commander S.S. Murray, USN, and Lieutenant W. W. Coombs, USN, and the following officers of Commander Murray, and eight (6) enlisted passengers. 0138 underway embark to Tillietjyll, Java, to Tronseville, Australia, in accordance with the orders Commander Submarines, Asiatic Fleet. 0223 cleared minefield, disembarked pilot, and proceeded course 171°E and 90°E at speed 16 knots, 4044 sighted small ship, resembling U.S.S. STARFISH. British destroyer, bearing 167°F, distant 6000 yards, on approximate course 100°F, approximately speed 15 knots. Raised two torpedo tubes ready for firing. 4046 determined ship to be either U.S.S. STARFISH, or British "STARFISH" type destroyer, both of which left Tillietjyll, Java, about 0000, March 9, and changed course to 100°F, 4046 shifted course to 100°F, and left to about 000°F, either having seen STARFISH or conducting a radical zig. 0414 submerged to 150°, Sound sighted nothing, sound heard nothing. Increased depth to 100° and at 0459 changed course to 171°F, 0451 surfaced and went ahead 16 knots, 0359 submerged on course 171°F and continued at speed 15 knots at 100°, periscope observations every 20 minutes, 1919 surfaced, and continued on course 171°F at 14.5 knots, changing course to 235°F and increased speed to full (15 knots) to investigate, 1745 slowed to 5 knots and for periscope observation. Ship sighted appeared to be small seaport at which he had changed course to 270°F. Increased speed to 15 knots and continued chase, 1850 identified ship at U.S.S. ALASKA. Changed course to 171°F, speed 12-14 knots, recognition signal with U.S.S. ALASKA.

4-5 Mar: - Continued passage on surface, course 171°F, speed 12-14 knots, depending on condition of sea.

6 Mar: - Continued passage on surface, course 171°F, speed 12-14 knots, 0000 set clocks to 2D minus 8. 1007 changed course to 143°F, 1753 changed course to 145°F.

- 1 -

— page 425 —
7 MAR:  At 0406 (-7 1/2 Z.D.), sighted ship resembling U.S.S. TASLEN, or "TASLEN-238" class British destroyer bearing 167°T on course 100°T, speed 15 knots, in latitude 00-50 South, longitude 100-14 East, Ship sighted at distance change of 0-6 degrees to course 000°N and headed for submarine, when range decreased to about 2500 yards, submerged to 150°N. Sound could not hear propellers, ship evidently zigged away upon submarine's sounding, Recognition signal was never not exchanged since they were not initiated by ship sighted.

3 Mar:  At 0609 lookout reported periscope in position latitude 11-20 South longitude 100-35 East. Periscope reported as bearing 000°N, distant 1-4 Z.D., time 1-00 Z.D., and changed course to port periscope at 1-4 Z.D., time 1-00 Z.D., and changed course to port

— page 426 —
35
IN REPLY
REFER TO:

U. S. S. SPEARFISH

(F) DESCRIPTION OF ALL AIRCRAFT SIGHTED:

7 Mar. - At 1420 sighted Australian two-engined land bomber bearing 160°T, distant 2 miles, in a position about 8 miles northeast of Rotnest Island Light, on a northerly course, altitude 500'. Fired yellow smoke bomb which was acknowledged by a red Very's signal from plane.

//75

— page 433 —
1756-4/ (C/1A)
DELCLASSIFIED
May 15, 1942.

Subject: Submarine relief activities - Philippine Area.

(a) 2-22 February. SANDY emerged in corryline one million rounds, 30 caliber ammunition to Perang, Police Harbor, Mindanao, from Sourbeeny and bringing out twenty-four army enlisted personnel to the same place.

(b) 28 February. PHILIPPO on patrol north of Java was sent to Corregidor to be at the service of General MACARTHUR. Attached on New precluded sending A.A. ammunition with this submarine. March 13 she was standing by at Dangaran Island in connection with evacuation of General MACARTHUR. Arrived Corregidor April 8 and was taken inside the minefield to unload food and fuel to the U.S. ZONA. After 36 minutes longrange the submarine got underway for operations with 3 or more and 18 enlisted men of radio Intelligence plus 1 army Colonel - total 22, plus publications and limited ammunition radio Intelligence equipment, about seven tons of food were unloaded and a very small amount of fuel was transferred. SANDY was kept off entrance A8 hours expecting to unload raminider. On April 10 CONCEPTION reported that further unloading of CAMARON was not desired. Proceeded to transmit arriving April 26, and discharged passengers and food.

(c) On 31 March SANDY on patrol off Java was ordered to ferry ration from Gebu to Corregidor. (Arrived GEBU April 4) landed on Gebu dock 4 torpedoes and 250 rounds

- 2 -

— page 436 —
726-4/
AUG-2 (20/1A)

DECLASSIFIED
May 15, 1942.

Subject: Submarine Relief Activities - Philippine Area.

Not delivered due surrender --- 3356 rounds 3" AA.

Naval officers evacuated from Philippines --- 43
Army officers evacuated from Philippines --- 20
Navy enlisted men evacuated from Philippines --- 101
Army enlisted men evacuated from Philippines --- 24
Nurses evacuated from Philippines --- 12
Civilians evacuated from Philippines --- 22

Total --- 222

Material brought from corregidor.
Torpedoes --- 58
Submarine spares --- about 4 tons
Radio equipment --- about 3 tons

Material jettisoned and not recovered:
AT CEBU
Torpedoes --- 16 (4 of which given in the squadron)
3" ammunition --- 500 rounds
AT MANILA
3" ammunition --- 150 rounds

J. WILKINS
Chief of Staff.

— page 438 —
1956/AL-3(4)
(S&A-15)
DECLASSIFIED
From:
To:
Subject:
References:
Enclosure:

COMMANDER ALLIED NAVAL FORCES
BASED WESTERN AUSTRALIA
June 3, 1942.

Commander Allied Naval Forces Based Western Australia.
Commander Allied Naval Forces Southwest Pacific.

U.S.S. SPARTAN, Supplementary Report of Fourth War Patrol, forwarding of.

(a) CONCURRENCE
(b) CTF51 despatch 200903 May 1942.

(A) Subject report - Original and 3 copies.

1. In accordance with reference (a) the report supplementing my despatch, reference (b), is forwarded herewith.

C. A. LOCKWOOD, Jr.

DECLASSIFIED: 1956/AL-3(4)
BY: 1st Lt. J. D. DAVIS
DATE: 1/1/42

— page 441 —
126/4/416-3
SUBMARINES, UNITED STATES ASIATIC FLEET
U.S. S. SARGO (SS418) Flagship
June 1, 1944.

Dispatched from U.S. Forces, designated USS SARGO, 1st Anti-Axis Fleet, 30 May 1944.

---

**Sparks of the Navy**

**Sparks of the

— page 442 —
756-1/ALO-3

SUBMARINES, UNITED STATES ASIATIC FLEET
U. S. S. SARCO (SS185) Flagship
June 1, 1942

SUBJECT: 756-1/ALO-3
SUBJECT: 756-1

— page 448 —
1650 - 1655 - 1625 - 1190

KeeI depth 64 - 65 feet

Straight/curved shots) Stretch (3)
    Curved (1)
Type spread 2 degrees divergent

Attack: (unopposed X
    (checked) (opposed by air screen/close screen

Detected: (intercepting
    (after firing when torpedo exploded prematurely.
    (victim)

RESULTS: (Certain) No damage to enemy

(Estimated) --

DAMAGE TO OWN SHIP None

BRIEF REMARKS: Cannot account for misses nor premature explosion -
sound reported all torpedoes running. After explosion enemy opened
fire on periscope with 3" poop-deck gun, turned away and increased
speed.

— page 449 —
194-2
Date: 194-2
Location: 194-2
Longitude: 194-2
Latitude: 194-2
INSTRUCTIONS:
(a) ATTACH FIRST - THEN COLLECT DATA FOR THIS REPORT.
(b) DO NOT "QUIKE DOWN THIS REPORT" - IF DATA CANNOT BE ESTIMATED WITH REASONABLE ACCURACY ENTER A DASH IN SPACE FOR WHICH NO DATA IS AVAILABLE.
(c) DRAW A CIRCLE AROUND THE APPROPRIATE ENTRY IN THIS REPORT WHEREVER SUITABLE.

WEATHER CONDITIONS: Detached cumulus clouds from southwest. Fair moonlight visibility, with wind 6-8 from southwest.

SEA CONDITIONS: Slight sea with heavy swells from southwest.

SOUND CONDITIONS: If applicable: Sound picked up swells (180 RPEI) at 2000 yards. Echo-ranging attempted with poor results.

TYPE OF OPERATIONS: War Patrol

SPECIFIC OBJECTIVE: Enemy passenger-eargo ship (12000 gross tons) similar

"TASKING WART" or "THAT AM WART."

FORCES ENGAGED: ONN

Name and Type: ENEMY

TYPE OF ATTACK (Own/own - scratch one): High submerged wading target during firing (white light method on T.D.C.).

BRIEF DESCRIPTION: 1 3/4 hour surface approach, followed by 1/2 hour submerged approach. Pierd 4 torpedoes from ranges 1100 - 800 yards. 50 port track, zero gyro. Two hits.

WEAPONS EMPLOYED: Own: Torpedoes
    Enemy: None

AMMUNITION EXPENDED: 4 torpedoes

EVASIVE TACTICS EMPLOYED: Own: Intent deep to avoid collision.
    Enemy: Zigzag 15-30 degrees right and left of base course.

— page 450 —
1100 - 970 - 900 - 800
KEY DEPTH: 62 - 60 FEET
Straight/curved shots(s) Straight
Type spread (forward (about 1 ship length) applied by shifting point aim with periscope)
Attack: (unopposed) X
(Check) (opposed by air screen/close screen)
Detected: (prior to firing)
(Check) (after firing X)
(undetected)

RESULTS: (Certain) Observed two torpedoes hit. Observed sinking ship for 1 1/2 hours after torpedoing. Port list increasing gradually from initial 20 degrees, and stern settling slowly - about 5-10 feet freeboard when last seen. Ship dead in water and not under control. Transcribed distance nearest land 100 miles.

DAMAGE TO OWN SHIP: None
BRIEF REMARKS:

— page 451 —
7787
Date: December 25, 1942
U. S. SPARISH (SS 190)
Time: 1506 (2:11)
Location: Latitude 26-56.1 S.
Longitude 149-58.2 E.

INSTRUCTIONS:
(a) ATTACK FIRST—Then collect data for this report!
(b) Do not "Gun Deck" this report—If data cannot be estimated with reasonable accuracy enter a dash in space for which no data is available.
(c) Draw a circle around the appropriate entry in this report wherever suitable.

Weather conditions: Clear - Wind from east, force one.
Sea conditions: Smooth
Sound conditions (if applicable): Good - [props heard 7000 yards]
Type of operations: War Patrol

Specific objective: Two (2) enemy AKs - Similar "LIMA MARU"

Process engaged: own

U.S.S. SPARISH
(Name and Type) Enemy: Convoy, 4 AKs escorted by torpedo boat of...
CHLORI class.

Type of attack (Own/Shore—scratch one) Day submerged attack

Brief description: Convoy of 4 AKs in two columns about 1000 yards apart; escort 500 yards ahead and midway between columns. Formation zigzag: 40 degrees away 5 minutes before firing. Fire at leading AK near column and rear AK far column which were in line of bearing and overlapping.

Weapons employed:
- Own
- Torpedoes
- Enemy
- Depth Charges
- (over)

— page 452 —
4. Torpedoes (Mk. 5-3)

Ammunition expended: Four (4) Torpedoes (Mk. 5-3)

Evasive tactics employed: Submerged to 200 feet - ran silent

Own
Enemy
(Check)
(

— page 453 —
728.1
Date: January 2, 1943
Time: 0544 (ZD-11)
Location: Latitude: 35-23.0 S
Longitude: 151-21.0 E

INSTRUCTIONS:
(a) ATTACK FIRST—Then collect data for this report:
   - Do not "Gun Deck" this report—If data cannot be estimated with reasonable accuracy enter a dash in space for which no data is available.
   - Draw a circle around the appropriate entry in this report wherever suitable.

Weather conditions: Blue sky with detached cumulus clouds from N.W.S.
Sea conditions: Slight with moderate swell from N.W.S.
Sound conditions (if applicable): Fair - (Trop. heard 5000 yards)
Type of operations: War patrol

Specific objective: Navy AK or AP - similar "LIONS LAIR"

Forces engaged: own

U.S.S. STRAITFISH

(Name and Type) Enemy Convoy 2 AKS or AKS in column escorted by...
2 CHIEFT. type Torpedo Boats, one ahead and other on port quarter of column.
Type of attack (Own/Every—scratch one) Height submerged (moonlight).

Brief description: Sighted convoy in moonlight while on surface. Ran ahead while obtaining course and speed. Cursored and conducted attack on rear AK in column.

Weapons employed:
   - Own: Torpedoes
   - Enemy: Depth Charges from escorts and aircraft.

(over)

— page 468 —
1
IN REPLY
REFER TO NO.

---

### Enclosure E

| Roll No. | Exposure No. | Remarks |
||||
| 4       | 7            | Believe there is a gun and shield, camouflaged with brown and green stripes at (1), Could see a medium sized house near (2). These show up better in roll #30. |
| 7       | 9            | The periscope vertical cross wire is on a small clearing. The beach is much wider here. Also think there is a single gun on the beach here. |
| 8       | 10 & 11     | The small island on the eastern projection of the shore line. A good landmark by its center high tree. |
| 24      | 8 & 9       | Small thatched observation post on right tip of the island. |
| 24      | 12           | Thatched lean to to the right of the cross wire. Other possible defenses seem to show up here. |
| 25      | 8            | Kore on the possible defenses of SW pass. |
| 30      | 9            | The unusual object near the right tip of the island appeared to be a camouflaged gun. A building was visible in the large clump of trees. |
| 43      | 8 & 9       | The channel buoys are visible on the negative. |
| 43      | 10 & 11     | Patrol boat visible. |
| 54      |              | This whole roll was on what at the time we thought was a camouflaged covering between two islands. Later investigation at closer range showed it to be large light painted buildings on the lagoon side of Jabor. |
| 60      | 1            | (1) Lookout tower (2) Concrete blocks |

- 1 -

— page 469 —
IN REPLY
REFER TO NO.

U. S. S. SPEARFISH

Roll No.    Exposure No.    Remarks
60    2    (1) Barb wire
    (2) Building in trees
60    3    1-2-3 Buildings
    4    Lookout tower
60    4    (1) Lookout tower
    (2) Heavily fortified area
60    9    (1) Power line
60    10    (1) Lookout tower
    (2) North tower
60    11    1-2-3 Three towers
63    1    Note how the 3 blocks are out quite a bit from the East Point.
64    2 & 3    Gosel Maru, 1961 tone, anchored inside lagoon of 'Emidj.
65    1    House on northern tip Tiniet Island.
65    6    Power line between Emidj and Tiniet Lookout tower
65    7    Lookout tower
    One of the large hangers through the trees. The water front here heavily fortified.
66    3 & 4    Double shots on each bearing. The rough weather and high humidity were making the periscope very foggy at times.
66    1 & 2    A house in the trees
    5 & 6    House in trees
    7    Three blocks vary plain
    9    Barb wire along beach
    11 - 12    Lookout tower. Heavily fortified area here.

— page 470 —
IN REPLY
REFER TO NO.

U. S. S. SPEARFISH

Roll No.    Exposure No.    Remarks
69    3    Houses in trees
66    5 & 6    Lookout tower and fortified area
70    1 - 12    An example of what happened when
    pictures were taken immediately after
    raising periscope. Normally we left
    periscope up about a minute to allow //
    to clear before shooting - but we were
    too near the lookout tower to do that
    here.

71    1 - 12    The three towers of Almenar. Search-
    light on the north tower, and the fact
    that its rows are parallel with the
    line of sight is the most positive gives
    it its unusual appearance.

72    1    1    Middle lookout tower
    8 & 9    Power line between Eald and Almenar
    11    South lookout tower

73    1 & 2    South lookout tower
    7 - 10    Three towers

74    1 - 12    The best pictures of the three towers.
    Note the building near the shore.

75    1 & 2    South lookout tower
    3,4 & 5    Three towers

79    1,2,3 & 4    Thin towers of Jabok
    8    The low flat strip is heavily fortified,
    I believe.

80    2    Thin towers
    8 & 9    Flat fortified strip
    10    Small lookout tower near right tip of
    the left island.

81    5 & 6    Thin towers. The small masts to the
    left are of sailing boats inside the
    lagoon.
    10,11,12    Buildings.

— page 471 —
1
82 1
Heavily fortified area south of the
East thin tower.
Buildings

83 1,2,3
Heavy towers of Daluit

84 1,2,3,4
Heavy towers

85 1,2,3
Heavy towers

-4-

— page 472 —
05190/A16-3
Serial 0001

U.S.S. SPEARFISH
One Fleet Post Office,
San Francisco, Calif.,
6 December 1944.

DECLASSIFIED

Front:
To:
Via:

Subject:
U.S.S. SPEARFISH, Report of Photographic Reconnaissance of 130 JIMA, War Patrol number TWELVE.

Enclosure:
(A) Subject report.
(B) Track charts.
(C) Photographs and photographic negative taken during reconnaissance.

The enclosures, covering the photographic reconnaissance of 130 JIMA, AGAIN, 26 December, during the period 26 November, 1944, to 4 December, 1944, during the "Wealth War Patrol of this vessel, are forwarded herewith.

2. While this report is classified as Top Secret, the general remarks under Section 18 have been phrased to allow a lower classification if read separately and are included to be of possible assistance to future submarine commanding officers engaged in reconnaissance.

C. J. Jones

CONFIDENTIAL

— page 473 —
44

U.S.S. SPEARFISH - TWELFTH WAR PATROL
PHASE ONE - RECONNAISSANCE

A. Prologue:
SPEARFISH ordered to make photographic reconnaissance of IWO JIMA by CombatPatrol 17 Operation Order 379-44, as specified in Cinapac top secret letter A-4/58 serial CO0943 of 1 November, 1944 and CombatBase top secret letter CO0043 of 4 November, 1944.

During preparation and loading period, the following equipment was put aboard: 3 periscope cameras (2" x 2"), one radar camera (4" x 5"), film recorder (voice) and developing and printing equipment. Two photographers' masts were also aboard for temporary duty during reconnaissance, and Lion's (Jg) Allen A. SNOCK, USNR, was embarked as technical adviser during the trip from FABL to SAIPAN.

B. Narrative: (All times "Item", -9)

25 November, 1944

1600 - Departed SAIPAN in company with TREPAN, SEJUNDO, RAZORBACK and escorting destroyer. Set course for entrance to safety lane, made trim dive when well clear of harbor.

2130 - Escort departed. Continued up safety lane at two engine speed.

26 November

Proceeding in company.

1215 - Sighted torpedo wake cooling down port side, then sighted periscope distant about 2000 yards. Avoided at high speed. (SHIP CONTACT No. 1) Reported to CombatBase and OIC 17,7 by SPEARFISH serial four, in order to warn other submarines using this lane.

2049 - Sighted refraction of moonlight from wings of unidentified aircraft, apparently turning away. Probably a BLUE search plane. (AIRCRAFT CONTACT No. 3)

28 November

0518 - Made dawn trim dive and decided to remain submerged during daylight - too close in to risk being sighted.

1710 - Surfaced, all clear.

1919 - Sighted MINAMI IWO JIMA bearing 036° T distant 24 miles. Set course to pass island at 12 miles, then rounded island and headed up for IWO JIMA.

— page 474 —
29 November

0215 - Picked up voices in English on APR, listened to conversation very closely as follows:

"Look, a ship down there about four miles",
"No, I think it's a submarine at two miles",
"Well, let's bomb the bastard anyway. Here we go, and use your rockets".

0221 - Sighted LIBERATOR distant about 4 miles, heading in from dead ahead. [AERIAL PORT NO. 4]. He apparently dropped as we ordered the bridge cleared, because a loud explosion was heard and felt just before the hatch was closed and the officer of the Deck saw a large explosion plume about 700 yards away. He meditated on it all as he was bracing. He had been in the forward compartment for a long time and had been on the bridge for a long

— page 475 —
1510 - Secured from battle stations and waited for range to island to open.

1933 - Surfaced and started routine for night.

30 November

0466 - Sighted two searchlights on IWO JIMA, trained overhead on clouds.

0503 - Submerged to assemble and evaluate data and find out what remains to be done. Found to our dismay that camera No. 2 had a shutter casualty, hence will probably have to repeat the entire day.

1410 - Sighted 'SALLY' searching over IWO. (Alircraft Contact No. 5).

1555 - Surfaced to watch Liberator strike.

1610 - Took pictures of PFI screen showing both IWO JIMA AND NIKUNAI IWO JIMA.

1625 - Liberators in sight to outboard. Jap NHIRI came out of the clouds on our port beam, circled to stern and started his dive - so did we. (Alircraft contact No. 6). Changed course to 270° T on the way down. Took one bomb, estimated 150 kg at 75 yards, while passing 24 feet. Went to 150 feet.

1635 - Planed up to look for our pugnacious friend and found him circling our diving point. Returned to 100 feet.

1642 - Back up to periscope depth, all clear. Heard many faint rappings on hull, found smoke hovering over IWO and decided some of the Liberators' boobs hit the water. Watched remainder of the bombing and AA fire.

1704 - Surfaced to haul clear to eastward. Many searchlights and small lights around IWO - apparently the Liberators caused some confusion.

1856 - Radar sweep gave possible pjp at 4000 yards bearing 040° T. Two minutes later the Officer of the Dock saw what was probably a periscope feather near that bearing - we held evasión drill at hull power, but it was not a definite periscope contact. Continued to clear area to eastward - if we are contacted again maybe the Nips will think we are merely a lifeguard - I hope so.

1 December

0200 - Sighted plane, probably a Liberator, at about 5 miles. Submerged. (Alircraft Contact No. 7).

0220 - Surfaced, all clear. Closing IWO JIMA for some more pictures.

— page 477 —
0850 - Came up for a look and confirmed the Coast Pilot - a bird would have trouble climbing those cliffs, let alone soldiers. Took a roll of pictures (bearing 003° E distant 8600 yards) for our own amusement, then headed out. The pictures will be included, as roll number 60, merely as a matter of interest and to save any attempt to place a lookout station there.

1828 - Surfaced, headed back to IWO JIMA for radar pictures.

2300 - Picture taking completed, cleared vicinity of island.

3 December

0828 - Submerged to work on photographs.

1424 - Surfaced, headed back to stand by during expected air raids.

1900 - Sent SPEARFISH serial 6 to Consubspa and OTG 17.7.

2127 - Air raid over IWO, seems to be the last one tonight.

4 December

0000 - Set course for SAIPAN.

0519 - Submerged.

0537 - Surfaced and headed back to look for downed aviators.

1650 - Sent SPEARFISH sixth to ConTask Group 17.7.

2119 - Ordered back to SAIPAN, set course to clear area.

5 December

Enroute SAIPAN. Special mission over, remaining events reported in Twelfth War Patrol report.

0120 - Sent SPEARFISH serial seven to ConTaskGroup 17.7.

— page 478 —
1. Weather
The weather was very much as expected in this area, visibility generally excellent, clear calm seas.

D. Tidal Information and Navigation Data

Tidal currents gave a general set to westward and southwest during entire day, rather than alternating our entire expected.

The three rocks awash, reported 700 yards westward from KANA IWA, were not found by passengers. The rocks and breakers expected between HIASHI IWA and ZACHIIWA HANA were not found.

Because of the danger from possible mines and from grounding on unexpected pinnacles, the "12 to 19 bank" reported about two miles southeast of Kast Beach was not investigated. Jap radar instead found what was near the 12 impervious to traverse this area submerged, allowing but one fathom under the keel at the reported twelve fathom minimum. Since grounding would have led to almost certain discovery and attack, the information was not considered worth the risk. Numerous "single-ping" soundings were taken during the reconnaissance and indirect that the bottom was undersea confirmed, though some time the last soundings were recorded - variations from charted depths suggest from twelve to fifteen feet. The average error was plus or minus fifteen percent with the maximum error plus or minus thirty five percent of the charted depths.

Simultaneous star fixes, tangents and radar fixes were taken on two nights during bright moonlight. The first showed 100 to be three miles bearing 60°E 1° from its charted position, and the second indicated that the charted position is exact. With all factors involved taken into consideration, it is estimated that the position of reference points is charted within one mile of purpose or navigation. There is no apparent rotation of the island or mis-alignment of the compass roses on 80 chart 601.

In an effort to locate the "12 to 19 fathom bank", echo ranges were taken with the sound head trained on the bank, with negative results. This is not considered conclusive, but is that the bank is missing, but indicates that, if present, it has fairly sloping sides and does not rise vertically from the bottom.

The type of beach and shore encountered was suggestive of the islands off the Southern California coast, indicating comparable anchorage facilities. Anchorage of San Clemente in 40 fathoms of water have proven satisfactory and it is believed that the shoal area to the north of the island would provide similar holding ground. At least three and possibly four well-mapped berths could be found just off each of the major beaches for unloading supplies by lighter after the initial landing, but the protection of a sheltered harbor is not to be found. There were no indications of offshore reefs or dangers to navigation other than those charted.

— page 479 —
The island is nearly devoid of landmarbles for plotting or establishing beaches, however the following points might be useful:

(a) The high point of the crater of SUBIRACHI YAMA is marked on H.O. chart 6101 as 4 564. This point is much easier to plot out and use as a reference point than any of the nearby tangents.

(b) The landing craft are beached just south of the unloading platforms at the northern end of East Beach, and about fifty yards south of these is a third, single landing craft, high and dry. The station of the craft is 1.2 lat, 24°-46'-11"N, long, 141°-19'-20"E on chart 6101 and furnishes a readily-elicited beacon on approaching East Beach. This craft is conveniently covered with red rugs, making it stand out.

(c) The house on KANGOJU IWA plots in on chart 6101 at lat, 24°-46'-23"N, long, 141°-19'-16"E, and may be easily recognized.

(d) Midway along West Beach is the bulk of a plane, probably a B-ETT, which plots on chart 6101 at lat, 24°-46'-11"N, long, 141°-19'-44"E and, unless moved, should afford a ready and convenient landmark.

(e) Proximity of a B-ETT to a landing strip at, near Jinked East on Kajiima at southern end of landing strip at, near Jinked planes at, on chart 6101 at lat, 24°-46'-10"N, long, 141°-46'-31"E, and, if possible, this looks very similar to a large caliber gun elevated about 6°.

Determination of position on the western side of the island is difficult due to confusion of tangents of KITANO HANA and TOBIIGHI HANA by off-lying rocks.

The verbal descriptions are included (film roll), and the position of the ship at each recorded observation are marked on the accompanying chart. As an aid in fixing these positions, the following information is appended:

| Position | Flying Time | Track No. |
||||
| 1        | 2-30         | 1,2       | 0755    |
| 2        | 4-30         | 2,3,4     | 0839    |
| 3        | 7-36         | 4,5,6,7   | 1006    |
| 4        | 6-00         | 7,9,10     | -        |
| 5        | 6-08         | 10,11,12  | 1136    |
| 6        | 4-05         | 12,13,14  | 1540    |

- 7 -

— page 480 —
1. Reconnaissance Data
In connection with possible landings, it is remarked that the terrain leading from East Beach up to the airfield seems the best for tracked or wheeled vehicles and gives the impression of being [Best at]

— page 481 —
6/29/22 11/26 11/29 11/30 11/30 16/1
Date 2049 0521 1040 1460 1660 0600
Time (I) 17:44 24:44 24:30 24:59 24:07
Lat. N 14° 18' 14° 11' 14° 08' 14° 19'
Long. E 13 13 13 13 13 13
Speed 30 knots 30 knots 30 knots 30 knots 30 knots 30 knots
Course 30 knots 30 knots 30 knots 30 knots 30 knots 30 knots
Trit. Burs. 30 knots 60 ft. 60 ft. 60 ft. 60 ft. 60 ft.
Min.since Sec. Sec. Sec. Sec. Sec.
last SD search Unknown 30 knots 30 knots 30 knots 30 knots 30 knots 30 knots
No. 1 1 1 1 1 1
Type 1/1 1 1 1 1 1
Prob.Mission Search Shipping Searching Searching Searching Searching Searching
How Contacted 1 1 1 1 1 1
Int.range, mi. 6 6 6 6 6 6
Elev. 70 70 70 70 70 70
Range & rel.bng. Not Not Not Not Not
when 5/M sighted sighted Unknown sighted sighted sighted sighted sighted
Sea state 2 1 1 1 1 1
Sea dir.(rel) 045 090 090 090 090 090
VIs. Mi. 30 30 30 30 30 30
Cloud Ht. 5,000 6,000 6,000 6,000 6,000 6,000
Cloud 60 70 70 70 70 70
Moon, bng. rel. 20 20 20 20 20 20
Moon, angle 40° 30° 30° 30° 30° 30°
Moon, 3 alius. 60 80 80 80 80 80

H. Attack data

No attacks made.

I. Mines

No mines were encountered nor was any activity definitely connected with mining observed.

J. Anti-submarine Measures

The only anti-submarine activity encountered was carried out by aircraft. There is a general search of the nearby waters by one or two planes, extending about seven miles to seaward, starting about two hours after sunrise. In addition, an anti-submarine patrol sees to be carried out every time the island undergoes heavy air attack.

- 9 -

— page 482 —
1. Sound gear and sound conditions.
   Sound conditions are not considered good, the many reefs and submarine disturbances causing confusion. However no targets were observed and hence the ability of the sound gear to pick out targets was not apparent.

0. Density layers.
   None observed. SST cards gave a uniform isothermal down to 150 feet in all cases.

P. PTF Radar equipment.
   Approaches to IWO JIMA from southwest are greatly facilitated by the appearance of MINAKI IWO JIMA in the radar screen at ranges in excess of 40 miles. IWO JIMA itself begins to show at roughly 36,000 yards, appearing just as a single wide dip and then breaking down into two pipe at about 34,000 yards. Pictures of the PTF scope are included, closing in to 16,000 yards. There are no reality prominent points that stand out in the northern part of the island, the radar screen giving the appearance of a small island (NOTO YAMA) and a nearby peak [SURIBASHI YAMA]. From any bearing but the one shown in the pictures, the radar screen shows a narrow band with several pipes on the same bearing but at different ranges.

Q. Radar intercept data.
   Two rather definite radars were in operation on IWO JIMA during most of our stay. On 2 December during an air raid, the 160 sq. radar died out suddenly and shortly thereafter another radar came in at 108.5 m., indicating possible damage to the 160 m., set and the starting of a stand-by. Other information on these radars:
   Freq.(m.o.) Pulse rate Pulse length Antenna rotation Lobbing
   108 500 20 hand (variable) Yes
   108.5 480 20 * Yes
   160 900 7 Yes

All radars seemed to become muplious of our presence at about 35,000 yards and start lobe switching on us at about 27,000 yards. They seemed able to track us out to 40,000 yards once contact was established. At ranges over 40,000 yards they were found to be sweeping. The radar at 108.5 megacycles was heard only once, after the 160 m. set was secured.

- 10 -

— page 483 —
R. Air activity.

Since most of the close-in reconnaissance was devoted to the beaches and could have overlooked planes landing and taking off, a statistical summary of planes observed might well be misleading and hence only general observations are included. For this same reason air contacts have been numbered and recorded only when they concerned us directly or occurred at points far enough distant to be more than local flights or test hops.

The most impressive feature of air activity near IWO is its scarcity. Apparently the H.M.S. are feeling the effects of gasoline shortages, since seldom are more than three planes in sight at one time and from side-arranging until nearly sunset not a plane was in sight. In comparison with the Saipan and Pinchafen air strips, IWO JIMA is almost completely deserted.

Our publicity of submarine rescue of downed aviators is having its effect - on each of the 3 days when IWO was struck by submarines, an anti-submarine patrol plane was observed within 100 miles of the island. The plane was at a MCT in each case and under bad angle proof that he carried at least one sleepless bomb or depth charge. I believe he would have dropped two bombs on us if he had had them, but one may have been previously expended. Surprisingly, we were not strafed during the dive, indicating an inexperienced or unproved pilot or prop armament. In each case the plane was rather definitely on anti-submarine patrol, and made no attempt to intercept the bombers.

No aircraft honing beacons could be found or heard in this area.

— page 484 —
8. Remarks.

Organization: The following stations were established for the periscope photography phase:

Conning tower
Conning officer at #2 periscope.
Bearing recorder at #2 periscope (QM).
Executive officer training #2 periscope.
Photographer operating camera at #1 periscope.
Photo bearing recorder (POB).
Photographer tending spare cameras.
Helmsman.
Talker (QM).
QM on periscope hoist switches.

Control room
Battle diving section.
Plot.
Plot recorder.

Training: Several drills were held enroute to the area, taking test rolls of photos and training the photographic party. It was determined that, with the cameras used, it would be possible to move the periscope up the mounasure. The order to commence photographing was given as "bearing xxx, sweep right (or left)". The #1 periscope point to be released, the camera being installed and the periscope put on the designated bearing by the Executive Officer. As each picture was taken, the periscope was moved 3" in the direction indicated, and relative bearing of the photo called out and recorded, and the ship's head recorded. It was found that by training a full roll of pictures (12 exposures) could be taken and the periscope lowered in less than one minute from the time the periscope cleared the deck. This procedure left #2 periscope free of the commanding Officer's reconnaissance and verbal description of details not brought out by the periscope photographs. Since it was expected that most of the work would be done very close in, it was felt that speed in the operation of #1 periscope was essential and a great deal of the preliminary training was devoted to its development.

It was felt that the data sheets provided for photographs information were inadequate, and hence a more complete form was misconfigured, and the ship's periscope was not found to be used. It was found that by use of the number of exposures already made, keeping the periscope party informed when near the end of the roll.

- 12 -

— page 485 —
The actual photography, it was found more expedient to have plot in the coming tower also, running a series of navigational files with the chart readily available for reference. This was the only departure from training conditions, and is believed more desirable.

Operation: It was found during photography that the quartermaster on #2 periscope was not needed with plot in the coming tower, however he was useful as messenger, line-paper passer, recording machine operator and periscope bearing readers.

Between pictures, ran at 65 feet using #2 periscope intermittently to check position, search and reconnoiter. A set of bearings was taken as soon as possible before before and after a run of pictures, so that our position for each roll could be established. It was found feasible in this case to make nearly a complete sweep in each set of exposures, the complete panorama taking two or at most three rolls. Only two cameras were used, the third being held as a standby. Except in one case of a jammed camera, all times for periscope exposure for a complete roll were equal to or shorter than the standard developed during training, averaging about forty seconds.

Because of the speed of data input, it became necessary for the talker to record the ship's heading, as it was necessary to the chart she had then transferred this record to the data sheet after the run. The photo bearing recorder is his hands full to record a periscope bearing every two or three seconds.

The most efficient procedure for getting out data was found to be as follows:

(a) Executive Officer sets periscope to desired bearing and calls out "SET?"

(b) Photographer snaps picture and starts rewind.

(c) On hearing click of camera, Executive Officer calls out relative bearing and at same time moves periscope to next bearing, again giving "SET," when he is on. At same time, talker gets ship's heading.

(d) On the last picture of the roll, the standby photographer calls "REWIND" on the click of the shutter. The Executive Officer folds the handles of the periscope and it is lowered without further orders, the camera and its beepplate being removed on the way down. The relative bearing of the last picture is given after the periscope has started down.

- 13 -

— page 486 —
The recording machine is felt to be a great benefit, since verbal description could be given without waiting for shorthand record or the worry of transcription errors. The descriptions were given between picture-taking and while waiting for the next "echoing position" to be reached. The portable airphotos is far superior to the thrust airphotos.

When more than one camera is on board or in use, the number of the camera taking each roll should be checked and recorded. In our case, three quarters of the pictures taken with the same No. 2 were ruined because of a shutter casualty, but it was no trouble to determine which camera was the offender before the next day of picture taking.

It was seldom necessary to cover more than 100 degrees of periscope traverse at one time, but frequently more than 70° was required. To prevent blurring to load a film magazine while pictures were being taken, the cameras were made fully ready and the roll-film carrying from the third camera was loaded. In this way the only film loading during actual photography was limited to the replacement of one used film carriage with a fresh one, allowing all three carriages to be reloaded while waiting for the next position to be reached, and minimizing the tension on photographic personnel with its consequent chance of errors.

T. Photograph Data sheets.
Sheets are appended.

— page 488 —
1/2/1944
DECLASSIFIED
COMMANDER SUBMARINE FORCE
UNITED STATES PACIFIC FLEET
Ca
G
Serial 00179
From
To
Subject:
U.S.S. SPEARFISH - Attack on by friendly planes.

1. On 28 November at 1715hr, in position 2L/CO/NK - 1L/3/91E, SPEARFISH, while proceeding on a special mission to two Jima, was attacked by a Lieutenant plane.

2. The following information is quoted from a dispatch received from SPEARFISH:
   - "PLANESHIP TURBULENT OVER OCEAN AT 4 A.M. 28 NOV 1944
   - SHIP, LESS THAN 100 MILES FROM BATTLE AREA OF TURBOFISH
   - SHIP WAS SIGHTED AT 4:30 A.M. BY A LIEUTENANT PLANE
   - SHIP WAS ATTACKED BY 3 TURBOFISH PLANES
   - SHIP WAS ATTACK

— page 489 —
1/59 81
END OF REEL
JOB NO. F: 108

THIS MICROFILM IS
THE PROPERTY OF
THE UNITED STATES
GOVERNMENT

MICROFILMED BY
NPPSO—NAVAL DISTRICT WASHINGTON
MICROFILM SECTION