U.S.S. PARGO (SS-264) — war patrol report SS-264_PARGO_Part1.pdf

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1942, at Electric Boat Company in Groton, Connecticut. On 24 January 1943 she was christened and launched by Miss Belle Baruch, the daughter of Bernard Baruch, financier and elder statesman. Then on a beautiful spring day, 26 April 1943, the ship was commissioned at the Submarine Base, New London, Connecticut, with Lieutenant Commander Ian C. Eddy, USN, as Commanding Officer. Immediately after commissioning, extensive underway training commenced; so in late June 1943, she departed for Panama en route to Pearl Harbor, T. H., where she arrived on 23 July 1943.

After voyage repairs and a six-day training period, the PARGO departed for her 1st War Pat ol in the East China Sea. This patrol was the beginning of a long and successful career of destruction of Japanese sea power. In the first attack of her career a large 10,000 ton tanker was sunk. Two days later, on the 6th of September, a very successful night torpedo attack was made on a six-ship convoy which resulted in the sinking of three of these ships, the severe damaging of another, and the complete disruption of this convoy -- only the coming of dawn saved the remainder of this convoy from destruction. Unfortunately, a typhoon and change in enemy shipping lanes prevented further attacks; so the PARGO returned to Midway Island to top-off with badly needed fuel before she could continue on to Pearl Harbor for rest and repairs. This patrol covered a period of 49 days from Pearl Harbor to Pearl Harbor, 18 August 1943 to 6 October 1943, and was rated as "successful".

After refit by the Submarine Base, Pearl Harbor, T. H., and a four-day training period, the PARGO with Commander I. C. Eddy, Commanding Officer, sailed on 30 October 1943 for her 2nd war patrol in company with the USS SNOOK and USS HARDER in a "Wolf-Pack" under the very capable direction of Commander F. B. Warder, USN, who was sailing in the PARGO, as Pack-Commander.

This patrol was conducted in the open sea northwest of the Marianas Islands across the shipping lanes to Palau, Saipan, Guam, and Truk. All submarines of this group succeeded in sinking ships, and the PARGO returned to port because of expenditure of all of her torpedoes. During this patrol one large tanker and one large freighter were sunk, and one more freighter and a destroyer were damaged. After the tanker was sunk by seven torpedo hits in three successive attacks, a small landing craft which had been part of her deck load drifted clear and was sunk by gunfire when the survivors refused to surrender. The most exciting time of this patrol came during the night attacks on 28 November when the SNOOK in PARGO made a coordinated attack on a four-ship convoy. The PARGO went in for her attack, was detected by a destroyer who tried to chase her away; but instead, the PARGO fired and hit this escort while diving to avoid being rammed. The destroyer was hit and proceeded to give off all manner of terrific explosions while the PARGO was passing close under her. One of the torpedoes

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2 : USS PARGO (SS 264)

which missed the destroyer went on and hit a freighter which was in the line of fire. When the SNOOK saw the fireworks, she correctly figured that our attack was completed and commenced her attack. She remained on the surface and fired twenty-four torpedoes during the next two hours -- meanwhile, the PARGO was underneath all of this activity and only able to guess from the sounds of torpedoes running and terrific explosions what was happening overhead. We were unable to surface to get out of there because of the danger of the SNOOK's torpedoes -- to say nothing of enemy depth charges and escorts. The freighter hit by the PARGO was later sunk by the SNOOK, but what happened to the destroyer is still a question. This patrol was completed on 8 December when the PARGO reached Pearl Harbor after a patrol of 39 days which was also rated as "successful". During this patrol one engine was wrecked; and since the whole squadron was being reengineered with a more reliable type of engine, the PARGO was ordered to Mare Island for reengining.

This overhaul and reengining put the PARGO in the best fighting condition possible, and sailed from Mare Island for Pearl Harbor. After a brief training period in Pearl Harbor, the PARGO departed for her 3rd War Patrol on 25 March 1944. This patrol was conducted in the Philippine and Celebes Seas to destroy enemy shipping in the vicinity of Davao Gulf. On 2 May a large tanker was found and sunk during a night surface torpedo attack in spite of the efforts of two escorts to prevent our attacks. A noticeable increase in enemy anti-submarine activity was noted during this patrol. The only other attacks made were on 4 May when one freighter was sunk and one was damaged during two daylight submerged attacks. Then on 9 May we departed from our area for Darwin, Australia, where we were to top-off with fuel for the voyage to Freemantle, West Australia. On 24 May this "successful" patrol of 60 days duration was completed as we moored alongside the tender, USS GRIPLIN, for rest and repairs.

After a pleasant and much needed rest, the PARGO again started to train and prepare for her 4th War Patrol under the command of Commander I. C. Eddy. Three days were allotted to training, and on the 13th of June the PARGO once again sailed forth to do battle with the enemy. This patrol took her back to the Celebes Sea, but unfortunately targets were beginning to be scarce in this part of the world due in part to the presence of the aviators in what was once a happy hunting ground for submarines only. On 27 June the PARGO found a nice freighter sneaking along the coast; so an attack was made on her. It is believed that one torpedo hit this ship; but whether it sank or not is not known because when we were able to use the periscope again after an angry escort had finished depth charging us, there was nothing in sight. Another successful submerged attack was made the following dawn on a six-ship convoy, and one freighter was sunk and one was damaged. After these two attacks the enemy kept his ships well hidden, and for the next heartbreaking month of patrolling no more attacks were made. On 30 July the PARGO headed southward again for rest and repairs in Freemantle, where she arrived on the 9th of August to complete this 57-day patrol which was again rated as "successful."

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3 - USS PARGO (SS 264)

During this rest period Commander I. C. Eddy, USN, who had commanded the FARGO on her first four patrols, was relieved by Lieutenant Commander D. B. Bell, USN, who had been on board when the ship was commissioned and had been with her ever since -- first as 3rd officer, then as 2nd, and finally as Commanding Officer.

Upon completion of refit by the USS GRIFFIN and seven days of training, the PARGO departed on 3 September 1944 for her 5th War Patrol. This patrol was made in the South China Sea between the Dangerous Grounds and the north shore of Borneo. En route to the patrol area a small freighter was contacted and sunk by a night surface torpedo attack in the Java Sea. The escort fled from the scene of attack without taking any counter-measures against the PARGO -- a very pleasant experience! Also, a special mission was successfully accomplished en route to the patrol area. On 22 September, while patrolling close to Palawan Island, a successful submarged attack was made in 30 fathoms of water which resulted in two ships being hit, but the escorts denied us the pleasure of seeing the final results of the attack. In the early hours of 26 September a single, unescorted warship was attacked on the surface and hit with two torpedoes. With only five torpedoes left aft and none forward this crippled ship was twice more attacked and again hit. As the sun rose, the cripple was seen to be a converted cruiser carrying a deck load of aircraft, and her bow was completely shot off back to her forward turret. The PARGO had expended all of her torpedoes and was unable to challenge this ship in a gun battle; so the cripple escaped to the protection of nearby shallow water while an escort arrived on the scene to protect her from further attacks. This 34-day "successful" patrol was completed when the PARGO moored alongside the USS GRIFFIN on 7 October for another rest and refit period.

The friendship of the Australians to the American submariners and the efforts of the Commander Submarines, Southwest Pacific, to furnish adequate recreational facilities made the time spent in the Freemantle area most pleasant. Many men felt more welcome and more at home there than they did in any other port visited, including ports in the United States. This friendly spirit contributed materially to the willingness of the officers and men to endure the hardships and to produce the remarkable record of submarine warfare in the areas under the operational control of the Commander, SEVENTH Fleet.

The 6th War Patrol of the USS PARGO, with Lieutenant Commander D. B. Bell as Commanding Officer, commenced on 28 October after one day and two nights of training in the Freemantle area. Fortunately, she was able to proceed as far as Exmouth Gulf in company with the USS HADDO; so additional realistic training was accomplished en route to the area.

This patrol was conducted in the same area as the 5th War Patrol but was disappointing in the lack of targets found in an area which had once had such lucrative traffic. Again the presence of our air forces was being felt. On the night of 13 November unsuccessful torpedo attack was made on the surface against a destroyer with a smaller escort in company with her as they proceeded southward through Palawan Passage. The destroyer was alerted and as soon as the PARGO fired her

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4 - USS PARGO (SS 264)

torpedoes, the destroyer turned to comb the torpedo wakcs and counterattack. Unable to obtain a firing position on either ship, the PARGO was forced by the superior gunpower and speed of the enemy to dive and go on the defensive. Fortunately, the ensuing depth charge attack did no damage. During the morning of 26 November smoke was sighted as a ship stood out of Brunei Bay on the north coast of Borneo. After a daring chase on the surface right off this enemy harbor, a favorable position for a submerged attack was gained, and this valuable tanker was sunk by torpedo fire. This attack left the air escort and two surface escorts with nothing to do; so they proceeded to give the PARGO the worst depth charging of her career. She was caught in 30 fathoms of water with a minefield to the southward, a wreck to the westward, and two escorts north and east of her. Nevertheless, without any serious damage to her, this fighting submarine escaped in the welcome darkness of that night. The remainder of this patrol was uneventful; and on 21 December, after a 54-day "successful" patrol, the PARGO returned to Fremantle where she received an excellent refit by the USS ANTHEON while the ship's personnel enjoyed Christmas ashore.

After seven days of regular and special training, the PARGO departed on 15 January 1945 for her 7th War Patrol, which was to be conducted off the Indo-China Coast with Lieutenant Commander D. B. Bell in command. This area was shared at various times during the patrol with the USS KRAKEN, FLOUNDER, and HAKE, and the senior submarine commander of the patrol coordinated the movements of the boats to insure optimum area coverage. On the night of 30-31 January a small cruiser or large destroyer with three escorts was contacted and a submerged night attack was made which sank this valuable enemy ship. During the ensuing evasive measures the PARGO struck bottom off Capo-Padarran and lay there until the depth charging was over and the escorts shoved off, apparently thinking that we had been destroyed.

During the period 4-6 February a special mission was successfully accomplished in the Paracel Islands, and Woody Island was bombarded to destroy enemy radio, weather, and administration building. The 4-inch 50 caliber deck gun using high capacity ammunition scored many direct hits in the buildings.

The next torpedo attack was made submerged on the afternoon on 10 February off Camranh Bay against a large tanker in a convoy of two ships, three escorts, and three aircraft overhead. The attack and evasion were successful, and Japan lost another tanker.

The last attack of this patrol was a night surface torpedo attack against a destroyer and escort about 0300 on 20 February. The lesson learned in Palawan Pass on the 6th War Patrol paid dividends now, and the destroyer was successfully attacked and was blown to bits with a tremendous explosion. From this patrol the PARGO proceeded via Saipan to Pearl Harbor, where she arrived on 13 March 1945 after a 58-day "successful" patrol en route to a much needed modernization overhaul at Mare Island Navy Yard.

The overhaul commenced 25 March and was completed on 17 June in a manner which should make citizens of the United States proud. Mare Island was operating at the peak of its efficiency and gave us an

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5 - USS PARGO (SS 264)

excellent overhaul. After this period of recuperation in the United States, the PARGO arrived in Pearl Harbor on 25 June and commenced preparing herself for her 8th War Patrol.

After eight days of regular and special training, the PARGO departed on 14 July for her 8th War Patrol with Lieutenant Commander D. B. Bell in command. Final instructions, provisions, and fuel were received at Guam en route to the patrol area. On 6 August the PARGO successfully transited the minefields of Tsushima Straite and entered the Japan Sea. Smoke was sighted on 8 August'about 100 miles south of Vladivostok, and a Japanese convoy of four ships and two escorts was attacked as it headed for Rashin. Cut of this convoy one ship was sunk and two damaged in a daylight submerged torpedo attack. When the PARGO attempted to regain contact with the remanents of this convoy after nightfall, she was driven away by an unusual number of aircraft. At dawn of the next day it was learned that Russia had entered the war against Japan and that these aircraft were Russian. Therefore, the PARGO proceeded at best speed for the coast of Japan where there would be less chance of fat errors between two allies, each eager and intent on sinking the remains of Japan's once great sea power.

On 10 August off Tsugeru Straits another convoy was intercepted and one ship was sunk by a night surface torpedo attack. Several days were then spent on "Lifeguard Duty", but no opportunities were presented for rescue work. During the morning of 14 August the PARGO made a submerged attack on a convoy hugging the west coast of Hokkaido off Motsuu Sakichi. The results of this attack were not observed because of enemy counter-measures. Upon surfacing about 1400 that afternoon, the wonderful news was received that the war was over and hostilities had ceased, but we were unable to relax our vigilance yet because of the presence of Japanese and Russian submarines and floating mines in our vicinity. We also learned that we were to remain in the Japan Sea until final surrender terms had been signed on 2 September. During this interim three floating mines were exploded by gunfire. On 3 September the PARGO, in company with the SORSK, skirted the minefields of Tsushima by running on the surface close to the coast of Korea en route to Guam. This exciting 42-day "successful" patrol was concluded on 9 September when the PARGO moored in Guam alongside the USS SPERRY.

The period from 10 to 15 September 1945 was spent en route to Pearl Harbor where the PARGO was to take up her post-war duties as part of the squadron based there.

Thus, the war history of the PARGO closes with the satisfying note that all eight of her war patrols were successful, and over 100,000 tons of enemy shipping were sunk by this submarine.

By Directivc dated December 1946, the USS PARGO (SS 264) was to be assigned to the THIRTEENTH Naval District, for training U. S. Naval Reserves.

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6 - USS PARGO (SS 264)
: Number of Patrol: 17
: Type of Ships: 1 Tanker, 1 Freighter, 1 Land. Craft
: Type of Ships Damaged: 10,050, 17,500, 12,000, 15
: Number and Type of Ships Damaged: 1 Pass-Freighter, 1 Destroyer,

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7 - USS PARGO (SS 264)

1. Star/Submarine War Patrol - Pacific -- 13 June to 9 August 1944
1. Star/Submarine War Patrol - Pacific -- 28 October to 21 December 1944
1. Star/Submarine War Patrol - Pacific -- 15 January to 13 March 1944
1. Star/Submarine War Patrol - Pacific -- 30 July to 9 September 1945

* * * * *

STATISTICS

OVERALL LENGTH 312 feet
BEAM 27 feet
SPEED 20 knots
DISPLACEMENT 1,468 tons

Stencilled December 1948
Restencilled March 1951

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35264/A16-3
Serial (020)
c-o PECLASSIFIED

Front:
The Commanding Officer.
The Commander-in-Chief, UNITED STATES FLEET.

Via:
(1) The Commander Submarine Division ONE TWENTY-TWO.
(2) The Commander Submarine Squadron TWELVE.
(3) The Commander Submarine Force, PACIFIC FLEET.

Subject:
U.S.S. PARGO, Report of 'Var Patrol Number ONE.

ENCLOSURE:
(A) Subject Report.
(B) Track Chart (ComSubPac only).

1. Enclosure (A), covering the first war patrol of this vessel conducted in East China Sea east of Longitude 127°E and north of Latitude 30°N, during the period August 18, 1943 to October 6, 1943, is forwarded herewith.

I. C. BEDDY
DECLASSIFIED-ART. 0445, OPNAVINST 5510.10
BY OP-0002 DATE 5/12/42

57646

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1. U.S.S. PARGO - Report of First War Patrol.

(A) PROLOGUE:
Arrived Pearl from East Coast on July 2, 1943. Assigned to Squadron FOUR for pre-patrol refit. The following work was accomplished:
(1) Examination of gear trains and springs all main engines. All defective gears and springs renewed. (2) P.F.I. screen installed on S.J. Radar. (3) .50 caliber mounts installed. (4) Periscope shears bracing installed. (5) All torpedoes removed and torpedoes returned by Base Shop and returned. (6) Installed Air Conditioning Unit in Corning Tower.
Had six days training period including one night of appreachees, and one night operations with a convoy. Convoy training considered especially beneficial. Training and refit period completed August 16. Readiness for sea set at August 18.

(B) NARRATIVE:
18 August, 1943
1310 (Y) Departed Pearl in company with SNOOK and P.C.590.
1530 (W) Made trim dive with SNOOK.
2000 (W) Released 'escort.

19 August to 22 August, 1943
Enroute Midway. Conducting daily dives and drills.

19 August, 1943
075Y (W) Sighted P.B.Y. bearing 020°T, distance 12 miles, parallel course.
0801 (W) S.D. contact, 8 miles.
0802 (W) Sighted P.B.Y. bearing 200°T; distance 5 miles, parallel course.
1520 (W) Sighted P.B.Y. bearing 045°T, distance 8 miles.
1855 (W) Test fired 20 M.M.

20 August 1943
0905 (W) Sighted SNOOK while conducting periscope search. Bearing 233°T, distance 10 miles.
1508 (W) Made Battle Surface firing 3", 20 M.M., and .50 cal. guns. Expended 5 rounds of 3".
1520 (X) Exchanged recognition signals with SNOOK, bearing 137°T, distance 10 miles.
2010 (X) Made Battle Surface and fired 5 rounds of 3" ammunition.
22 August 1943
0337 (X) Made S.J. contact at 8700 yards, bearing 170°T.
0350 (X) Sighted SNOOK bearing 170°T, distance 4 miles.
0625 (X) Arrived rendezvous.
0632 (X) Sighted plane escort, distance 6 miles. Proceeded to Midway.
0850 (X) Moored Midway. Fueled ship. Picked up fresh provisions, took an water. Submarine Base Midway commenced work on stuffing gland for S.J. Radar that leaks very badly. Were delayed overnight for completion of Radar job.
2100 (Y) Radar job completed.

-1- ENCLOSURE (A)

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23 August 1943
0655 (Y) Underway from Midway proceeding to patrol area. Conducted daily dives, drills, and control problems.

07145 (Y) Placed up two plane escort.

0937 (Y) Made dive for trim and to check S.J. Radar for leaks. Radar started leaking at 210 feet. Leaks worse than before repair job; looks like a waterfall. Continued to leak excessively at periods of depth so surfaced and decided to do job ourselves.

1145 (Y) Air escort returned to Midway.

1218 (Y) Radar mast repacked. Submerged to test same. Does not leak at 300 feet, so consider it a good job.

1305 (Y) Sighted Kure Island 3250', distance 8 miles.

1430 (Y) S.J. Radar back in commission.

2000 (Y) Crossed 180 th meridian; changed date.

25 August 1943
0750 (M) Sighted F.B.Y. bearing 045°, distance 10 miles.

1855 (M) Fired after 20 M.M.

26 August 1943
1819 (L) Fired 20 M.M.

27 August 1943
1814 (L) Fired 20 M.M.

29 August 1943
2000 (K) Crossed 150° Meridian. Slowed to one engine spred in accordance with operation order.

30 August 1943
1826 (K) Fired 20 M.M.

31 August 1943
0932 (K) Sighted flying boat. Japanese type 197", bearing 275°T, distance 8 miles, on Easterly course. Submerged to avoid detection.

1054 (K) Surfaced; all clear.

1319 (K) Sighted Jap. P.B. type 197" bearing 150°T, distance 10 miles on Westerly course.

2035 (I) Sighted sampan bearing 250°T, distance 4000 yards. Ran North to pass clear and avoid being detested.

2050 (I) Returned to Westerly course.

2055 (I) Sighted another sampan bearing 260°T, distance 6000 yards. Ran North to avoid. Sampans never picked up by Radar.

2150 (I) Sampan apparently on northerly course, so made leap to south and continued westward.

-2- ENCLOSURE (A)

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2210 (I) Sighted Torri Shima bearing 260°T, distance 24 miles.
    S.D. Radar did not pick up land until within 11 miles. S.D. picked it up at 20,500 yards. These results were very disappointing.

: 2250 (I) Stern tubes 'repacked; resumed normal speed.
: 0516 (I) Submerged to 300 feet to check stern tubes. Conditions satisfactory.
: 0627 (I) Ship sighted bearing 034°T on 'southern' course; distance about 10 miles.
: 0630 (I) Submerged and commenced approach, on normal/course.
: 3654 (I) Tops of masts reappeared. Vessel apparently has a larger angle on bow than first estimated. Looks as if he will get by, and we will have to chase. Estimated course now 150° speed about 10 knots. Continued approach at high speeds with looks every 6 minutes, but never saw more than masts and some stack, so at 1°.
: 0747 (I) Surfaced and started and around on three engines; first closing enough to get a look at him thru periscope.
: 0846 (I) Closed target sufficiently to see that he was a patrol boat rather than a large ship as first assumed. Discontinued chase and resumed course to area.
: Vessel was usual type of patrol boat with two masts and stack. Tripped for mast with large lockout platform that gave the impression of a much larger ship at first.
: 1750 (I) Sighted patrol boat bearing 272°T, distance 9 miles, course south.
: Submerged to avoid detection.
: 1905 (I) Surfaced and proceeded to area.
: 2330 (I) Picked up Zaku Shima on S.D. Radar, distance 38 miles.

: 3 September 1943
: 0224 (I) Sighted Kuchino Shima bearing 330°T, distance 14 miles.
: 0241 (I) S.W. picked up Kuchino Shima, distance 10 miles.
: 0350 (I) Passed thru Kuchino Shima Suicide. Observed Gaja Shima light in operation; 13 second interval.
: 0435 (I) Entered patrol area.
: 0455 (I) Submerged seven miles north of Gaja Shima and commenced periscope patrol.
: 1938 (I) Surfaced and commenced night Radar patrol.

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4 September 1943
0145 (I) Pip on Radar bearing 355°T, range 15,000 yards. 0/c to 355°T. Secured auxiliary engine, went ahead on 2 main engines.
0155 (I) Changed course to 250°T, which is approximate course of target in order to track.
0158 (I) Another pip on Radar to left of target, range 13,000 yards. Estimate enemy course 210°T, speed between 10 and 12 knots. Increased speed to standard to keep target off until we get complete picture. According to present estimate we are well off track, but converging and should be able to hold lead, and get in for a good attack without being sighted.
0200 (I) Another Radar pip, range 15,000 yards. This is nearly in line with main target but about 5000 yards beyond. The set-up now appears to be this: We have a two ship convoy with one escort, course 210°T, speed 10 knots, formed in line of bearing, distance between ships 5000 yards. The escort is leading and in between the columns.
0212 (I) Current estimate of situation is: target, definitely largest pip on radar, is on course 220°T, speed 11 knots, range 6300 yards. We are 4000 yards from track and closing. Can now make out target as long black shape. We will close, him until about 1200 yards from the track, then come left and give him a straight stern tube salvo.
0220 (I) Escort has pulled over to a position in front of target - hope he doesn't take position between us and main target.
0228 (I) Target 6400 yards away, screen still ahead at 4500 yards. We will pass close but clear of escort. At this time Control Room reports that the hydraulic pip it has lost pressure and we will have to operate vents by hand to dive or use emergency method of charging accumulator. With escort this close, consider it unwise to continue attack as planned; so turned away to allow escort to pass and to come in on target from quarter. Hope Control can get hydraulic power before we need it. During remainder of approach the Assistant Engineer and practically all of the machinist's mates on board were in pump room bilges.
0228 to 0248 (I) Spent swinging in a circle away from convoy allowing escort to pass and closing on target's quarter. With range reduced to 4000 yards, can recognize target as large tanker.
0248 (I) Radio reports ship close aboard sending "SINK", "SINK" on 500 kts. An afraid they have seen us, so came to 1100 port track and went ahead full to close as much as possible. Range is now 3000 yards; can see raked bow, pilot house forward, stack and engine house aft, Cruiser stern. Night is dark with rain squalls in direction of target. At time of firing rain squalls have passed aft of target and she is clearly visible.

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0250 (I) Radar Officer reports a fourth target on P.P.I. screen at 11,000 yards, apparently another escort joining up. This P.P.I. is a wonderful instrument; it gives a beautiful picture of the whole convoy. The situation now appears to be this: The largest target is nearest to us with an escort patroling about 2000 yards ahead of him. On the far side of the target about 4000 yards. is either a smaller ship or escort, a fourth ship, look like an escort, is joining up on the starboard side of formation, range 10,000 yards. Control has reported that they have hydraulic pressure, but pump will not operate to build it up again after this accumulation has been discharged. Have stationed men by each vent to operate them by hand if necessary. Hope the pressure doesn't drop off again.

0251-35 (I) Commenced firing a salvo of four bow tubes, on a 110 to 120° port track, torpedo run 2100 yards, small gyro angles, 2° divergent spread.

0252-15 (I) Completed firing, turned away to 0400T to evade near escort and went ahead flank speed.

0253-07 (I) Heard a dull explosion and the Captain and O.O.D.s saw a hit just forward of bridge. No flame - just a large ball of phosphorous water at end of torpedo wake alongside of target; the first fish must have been either a dud or a lower order detonation. Next two torpedo tracks seemed to pass ahead, but at.

0253-50 (I) All hands heard a loud explosion and the Captain and the officers on the bridge saw flame, sparks and debris shoot up into the air to a height of about 100 feet. Hit at (mainmast) forward end of engine room. After part of target is lighted up and a distinct picture of target is presented. At same time, Radar reported the escort at 1800 yards. At this time should have given him one from stern tubes, but was too busy looking for escort which had been lost during swing. Radar now reports that they were mistaken, that was target; they had lost him during rapid turn. Now have escort bearing 180°, 6000 yards and holding his own. Continued tracking target which has stopped and is signalling in our direction.

0257 (I) Heard two distant explosions, apparently depth charges or possibly torpedoes hitting far target which was in line with near target. Near escort turned on red light. Target now stopped broadside to at range of 4000 yards. Second ship appears to be standing by target to lend assistance. Have both target and other ship on Radar very close together. Escort still on our tail; we have gained 50 yards. He appears to be running, reverses course of convoy, so we changed course to 075T to open track. Control reports no hydraulic pressure.

0303 (I) Heard three very loud explosions, great sheets of flame were observed on target by the Officer-of-the-Deck and Assistant O.O.D. The target appears to break in half. Radar operator lost target at this time at a range of 7500 yards, but still has ship, that was standing by target on Radar. They had just given the T.D.C. operator a range to the target of 6900 yards, and it checked with the generated range on the T.D.C. Radar Officer reports target disappeared on P.P.I. He had four distinct pipes on screen during latter part of approach. At this time the "target disappeared and left only the three other pipes in their same

-5- ENCLOSURE (A)

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0313 (I)    Relative positions. Target must have sunk immediately after explosion as Radar had been tracking him, had just given a set-up less than a minute before, and was still getting good ranges and bearings on the escort - a smaller target. Previous pip had been at saturation point. The T.D.C. operator coached the Radar operator on, but no target is visible either on 81 scope or P.P.I. screen. Target had been picked up at 15,000 yards; so if it was still afloat, the Radar should have him.

0313 (I)    Another distant explosion. Screen is now drawing aft and hasn't seen us apparently. He appears to be continuing down reverse course of convoy; so at

0318 (I)    Changed course to 0950T to open out some more.

0340 (I)    Escort passed out of Radar range at 11,700 yards. Must have been destroyer to get echo at this range. Target was identified by the Captain and O.O.D. as a large tanker similar to the KYOKUTO MARU, 10,050 tons, page 264, O.N.I. 208J. The length according to the binocular formula for ranging was estimated at 500 feet, and to the topside observers, he looked immense.

The score now stands: One day in area, PETER PARGO has lost her virginity but TOJO has lost a tanker!

It is now too late to gain position ahead of convoy before dawn; so retired to eastward.

0453 (I)    Submerged in south-eastern end of area. Hydraulic pressure operated all vents except #71. Went to 200 feet to repair hydraulic plant.

0707 (I)    Sound picked up two high-speed screws passing over bow from starboard to port. Sounds like the pack: is out looking for us.

0848 (I)    Sound picked up high-speed screws bearing 140T. This one seems to be searching this area. Do not consider it wise to come up to investigate without a hydraulic plant.

0930 (I)    Sound lost screws bearing 237T.

1130 (I)    Hydraulic plant back in commission. Commenced periscope patrol.

1947 (I)    The making preparations to surface, sighted two vessels bearing 274T, on a northerly course, range about 8000 yards. Looks like the destroyers returning to base.

2020 (I)    Vessels out of sight; surfaced; no sign of vessels.

5 September 1943
0444 (I)    Submerged 40 miles south-east of Danjo Gunto. Conducting periscope patrol on Nagasaki-Sasebo entrance route.

1000 (I)    Sighted Danjo Gunto bearing 002T, distance 34 miles.

1823 (I)    Sighted objects on the horizon, appears to be two ships bearing 133T, distance 20,000 yards. Commenced approach.

1949 (I)    Surfaced and continued approach.

2034 (I)    Discovered objects were islands, broke off approach.

-6-    ENCLOSURE (A)

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2200 (I)  -  Radio reported receipt of message from Station J.O.S. at Nagasaki which appears to be an urgent warning of dangers to navigation. Believe they may have picked us up on Radar. See Section "II" for additional details. Will investigate islands for possible Radar station tomorrow.

6 September 1943
0457 (I)  -  Submerged 8 miles south-west of Danjo Gunto, conducting periscope patrol.
0650 (I)  -  Sighted twin float observation plane, Nakajima 97", bearing 330°T, distance 6 miles. Went to 150 feet to let him pass over.
1032 (I)  -  Observed a Radar station on top of Meishina, Danjo Gunto group. Took pictures of station at distance of 10 miles with island bearing 315°T. Believe that Radar station has had us located for last two days and therefore not contacts. Estimated effective range of Radar station is 40 miles. Changed course to 135°T to clear Radar circle. Will remain outside of Radar circle for remainder of patrol as I believe they have had us plotted in for last two days and are routing all traffic around us.
1830 (I)  -  Sighted smoke of what appears to be a convoy bearing 120°T, distance 16 miles. Commenced normal approach trying to get sight of vessels before dark. Targets seem to be on southerly course, and it looks as though they have routed them close to this islands trying to get by us.
1942 (I)  -  Surfaced and continued approach.
2021 (I)  -  Sighted convoy bearing 145°T. Can see several ships at range of about 10 miles. We are in moon path so will have to cross at some and make end around from other side.
2239 (I)  -  Have them on Radar, range 11,000; commenced track. They are zigzagging between 150° and 210°T, speed about 9 knots.
2300 (I)  -  Lost contact in rain squall. Secured charge; put four engines on line and continued chase. We now have four ships for sure. The nights very dark now that the moon has set. Visibility variable with numerous black clouds and rain squalls. The sea is calm with much phosphorescent water.
2323 (I)  -  Have convoy in sight again bearing 245°T.
2335 (I)  -  New have six ships on radar. This looks like a Labor Day Special. Opened out in order to decide on tactics for this convoy of doves. Have decided to come in from port bow of convoy, give leading ship, near column, three torpedoes on 70° track, and next ship three more, then swing to bring stern tubes to bear.
0030 (I)  -  Range 8000 yards. We now have a total of eight ships on the P.P.I. screen. It looks like 6,4,K,1s and two escorts or 5-A.K.'s and three escorts. Two escorts are definitely on this side, one ahead of convoy and one abeam of second ship in column. The ships are formed in two columns of three ships each, distance 1000 yards and intervals of 1500 yards. Escorts are patrolling and echo ranging continuously. See sketch #1. They appear to have all their escorts on the side which was the dark side. The P.P.I. is invaluable with this set-up as the bridge can only see dark shapes,

— page 18 —
0004 (I) Commenced torpedo attack on 7,000 yards ahead of convoy's beam. Formation has just zigged to course 185°T. Turned and started in at 18 knots, trying to keep silhouette down. The bow wave looks like the sparks under a street car on a sleety night. Will have to fire at about 3000 yards to avoid detection.

: 0108 (I) Came to course for a track of 115° port. This is final course; now we must wait for torpedo run to reduce and let them go. Can now make out formation - the leading escort, #7, is this side of formation and looks like a big SHIGURE class destroyer. The after escort looks like a small OTORI class torpedo boat. He is also this side of column, but has dropped back on this zig to a position aft of rear ship so that he is on our starboard bow; don't see how he can avoid sighting us, but it is too late now. Set after tubes on six feet to get him when he comes after us. The ships consist of A.K. of 5,000 to 6,000 tons except the first target ship, #1, which is about 10,000 tons looks newer than others. This looks sweet - the ships of the two columns overlap so if we miss target in near line, should hit far ones.

: 0111-12(I) With torpedo run of 3300 yards, gyro angle small, commenced firing three tube salvo at ship #1. One degree divergent spread, eight second firing interval.

: 0111-30(I) Fired third torpedo and shifted to target #2. Set in new S.J. range and bearing, and at

: 0111-47(I) Commenced three tube salvo at this target, same interval and spread.

: 0112-04(I) Fired last torpedo; right full rudder and commenced retiring at flank speed. Passed about 1700 yards from escort #8 who had about a 20° port angle on the bow. Felt like sounding one blast to help avoid collision. Continued retiring on course 090°, keeping stern to rear escort and thought we had thrown away six fish, when at Torpedoes started exploding. Things occurred re:her fast at this point. Six explosions were felt and heard at times listed below. These explosions were all of equal intensity and shook the ship. I think these TORPEX heads have a terrific wallop. The O.O.D. is on the high lookout platform to get above smoke trail and observed the following results at the time/the explosions :

: #5 ship: Sank with about a 60° down angle; diving time better than ours. He remarked later that he was amazed that a big ship could sink so quickly.

: #4 ship: Cloud of heavy black smoke pouring from forward of bridge structure.

: #1 ship: Hit aft, whole stern enveloped in sheet of flame.

— page 20 —
1. U.S.S. PARGO - Report of First War Patrol.

#2 ship: Plume of white smoke or steam coming from amidships - looks peculiar. Has turned 70° away and appears stopped. The following explosions were observed by Bridge personnel after torpedoes hit: 1 - Assistant O.O.D. saw halo of flame above smoke around ship #4. This flame was similar to ring of hot gases which sometimes ignites after a big gun has fired; only this ring was horizontal and rose to about 300 to 400 feet before burning itself out. 2 - Slightly later, the Commanding Officer saw explosion of orange flame above ship #1. 3 - Later, O.O.D. saw large explosion in middle of formation. He is uncertain as to what ship it came from, but thinks it was from #2.

After escort now turned on searchlight, swept convoy, and trained searchlight on our smoke trail. Ship #1 illuminated by searchlight and is enveloped in smoke and appears to be sinking. Near escort has turned toward in pursuit, but is beyond torpedo range - glad we held on to stern tubes. Changed course 25° to left to put smoke across line of sight of both escorts and to head for dark center of rain squall which is developing to northward and away from light spot to southeast. Water glassy calm. During retirement the S.J. was kept on the escort until it was established that they were not too close on our tail. The S.J. then kept a continuous sweep over the whole convoy in order to reproduce it on the F.P.I. screen. At this time, only five targets were visible on the screen. Range, about 600 yards. The whole formation, eight ships, had been visible from 600 yards during the attack phase; so three ships must have sunk. Relative positions on P.F.I. screen shows that ships #5, #4 and #2 are missing. Ship #1 is still the strongest pip and used as a bench mark. #1 badly damaged with two hits, one forward and one aft. The problem has been reconstructed and a plot made similar to the ones used in peace time firing and the following deductions are based mainly on range and torpedo run, which are believed to be accurate. S.J. gave a range and bearing less than 15 seconds before firing each salvo.

| Torpedo No. | Firing Time | Explosion | Torpedo Run | Target Hit |
||||||
| 1           | 01-11-12     | 01-13-24   | 3300 yards  | #1         |
| 2           | 01-11-20     | 01-13-30   | 3250 yards  | #1         |
| 3           | 01-11-28     | 01-14-32   | 4600 yards  | #5         |
| 4           | 01-11-47     | 01-14-00   | 3325 yards  | #2         |
| 5           | 01-11-57     | 01-15-18   | 5025 yards  | #4         |
| 6           | 01-12-04     | 01-14-12   | 3200 yards  | #2         |

Mathematically, this is the way the hits worked out and from the results observed, it looks logical.

— page 21 —
0140 (I) Lost contact with escorts. Guess they have lost us. Turned northward to clear track of D.D.s coming out from KAGOSHIMA KAIWAN and SESEBU. It is too late to get ahead of what is left of the convoy before daylight when the planes will be out, so retired to north-west to be in traffic lines for daylight patrol. A peculiar circumstance existed on this attack in that no depth charges were dropped as has been previously experienced. This brings up the point that these may possibly have been A.P.s and escorts did not drop charges because of troops in the water. Decided to hove on northward and cover the SHANGHAI-NAGASAKI route.

7 September 1943
0503 (I) Submerged for periscope patrol in NAGASAKI, SASEBO, SHANGHAI, route.
0953 (I) Sighted plane Nakajima "97" "Adam". bearing 090°T, distance 5 miles, course north.
1408 (I) Sighted same type plane bearing 083°T, distance 4 miles, course north. They seem to have a full air patrol out today.
1942 (I) Surfaced and commenced night Radar patrol toward north-western part of area.

8 September 1943
0100 (I) Sighted dim white light on horizon bearing 105°T. Seems to be sanpan so did not investigate.
0509 (I) Submerged and commenced periscope patrol; on northerly course, 65 miles west of DANJO GUNTO.
0940 (I) Sighted Nakajima "97", Adam, bearing 090°T, distance 35 miles, course southerly. They have good air coverage here.
1935 (I) Surfaced 50 miles northwest of DANJO GUNTO and conducted night patrol to northeast headed for northern part of area.

9 September 1943
0541 (I) Submerged for day patrol in northern part of area.
1955 (I) Surfaced for night patrol, 40 miles southwest of TSUSHIMA.
2125 (I) Sighted powerful searchlight on TUSHIMA, distance 40 miles. Light appeared to be searching mine fields. Very powerful light - would not advise getting too close to this.
2346 (I) Sighted what appeared to be vessel, zero angle on bow, dead ahead, distance 5 miles, bearing 261°T. Reversed course and stopped in order to track.
2357 (I) Sighted second vessel and then third all together. Radar has not picked them up. Can not make out whether vessels are large or small.

10 September 1943
0019 (I) Changed course towards them to investigate. Have lost sight of all but one which is making smoke.
0109 (I) Radar picked up target for first time, range 7000 yards. Target is now very clear and if radar range is correct, vessel is small patrol boat. Can not see other two; this one is making heavy smoke - looks like a suckers game so cleared vicinity on two engines.

— page 22 —
0501 (I) Submerged for day patrol, 45 miles east of QUELPORT Island. Patrolled to the south.
: 0550 (I) Sighted masts on horizon bearing 326°T. Commenced approach.
: 0634 (I) Turned out to be 3 small patrol vessels. Possibly same as last night so broke off approach.
: 1440 (I) Sighted masts bearing 320°T, hull down. Commenced approach.
: 1511 (I) Vessel now in sight. Patrol boat three island affair with high bow similar to sketch of "Q" ship sighted by GUIDEPOINT over a year ago. Began evasive tactics. He must hear us because every time we try to open his track he zigs over to us. So at 1600 (I) with zero angle on bow, range 2000 yards, went to 250 feet and rigged for silent running.
: 1730 (I) Returned to periscope depth. Patrol boat not in sight.
: 1943 (I) Surfaced 47 miles southeast of QUELPORT Island, and proceeded south. Do not think much of northern part of area - all we have had is rain and patrol boats.

11 September 1943
: 0449 (I) Submerged 50 miles west of DANJO GUNTO for day patrol. Continuing south.
: 1932 (I) Surfaced 60 miles southwest of DANJO GUNTO. Patrolled southeast. Received news of ITALY's surrender.

12 September 1943
: 0356 (I) Pip on Radar, range 7500 yards bearing 151°T. Changed course to put him on stern and track. He is making high speed right for us so increased speed and opened track. Visibility is fair, he must be small if we can't see him. Made ready the after tubes. At range of 4500 yards cannot see target. His pip is very small so have decided he is patrol boat. Commenced evasive maneuvers.
: 0430 (I) Lost target on Radar. Resumed patrol.
: 0515 (I) Submerged 75 miles south of DANJO GUNTO for day patrol. Patrolled northeast.
: 1935 (I) Surfaced 43 miles south of DANJO GUNTO. Patrolled to the south.

13 September 1943
: 0521 (I) Submerged for day patrol, 75 miles south of DANJO GUNTO proceeding to eastern part of area.
: 1937 (I) Surfaced, 30 miles southwest of KUSAKAKI SHIMA proceeding to northeast.

14 September 1943
: 0532 (I) Submerged for day patrol, 22 miles northwest of KUSAKAKI SHIMA. Patrolled to northeast.
: 1325 (I) Sighted masts of ship bearing 032°T, distance 10 miles. Commenced approach.
: 1337 (I) Discovered ship to be small patrol boat on southwesterly course. Retired to southeast.
: 1940 (I) Surfaced for night patrol, 25 miles northwest of KUSAKAKI SHIMA. Proceeded to westward.

— page 23 —
15 September 1943
0541 (I)  Submerged for day patrol, 60 miles south of DANJO GUNTO. Patrolled to the westward.
1928 (I)  Surfaced for night patrol, 65 miles southwest of DANJO GUNTO. Patrolled north.

16 September 1943
0526 (I)  Submerged for day patrol, 65 miles west of DANJO GUNTO and patrol-led to the northeast.
1118 (I)  Sighted vessel bearing 60°T, distance 10,000 yards, course southerly. Commenced approach.
1127 (I)  Identified 'ship as hospital' ship similar to SIBERIA MARU, 3500 tons, page 129 ON 208J. All markings were in accordance with international law so had to let her go by; much to the disappointment of all hands. Took two pictures.
1928 (I)  Surfaced for night patrol, 65 miles northwest of DANJO GUNTO and patrolled in area.

17 September 1943
0527 (I)  Submerged for day patrol; 50 miles northwest of DANJO GUNTO and conducted stationary patrol.
1926 (I)  Surfaced for night patrol, 50 miles northwest of DANJO GUNTO and patrolled to westward.

18 September 1943
0534 (I)  Submerged for day patrol, 70 miles northwest of DANJO GUNTO and patrolled to the south.
1916 (I)  Surfaced for night patrol, 65 miles southwest of DANJO GUNTO. Proceeding to eastern part of area to patrol inside of island group. Fuel is running low; will have to depart area in three or four days.

19 September 1943
0634 (I)  Submerged for trim; weather is making up. It is raining, so decided to patrol on surface.
0736 (I)  Surfaced.
2002 (I)  Radar pip on KUSAKAI SHIMA. Established position. This is making up into a real Typhoon; and we seem to be in center of same so put wind on starboard quarter and am riding it out on a westerly course. Barometer low 29.17.

20 September 1943
1312 (I)  Worst of storm seems to have passed; so changed course to 075°T, proceeding to TOKARA KAIKO. Will have to leave area tonight as storm has used up fuel and we have only enough for one-engine speed to MIDWAY.
2025 (I)  Sighted KUBUKAKI SHIMA light. Normal characteristics.

— page 24 —
21 September 1943
0145 (I) Cleared area thru TOKARA, KAIKYO.
0538 (I) Submerged for trim.
0604 (I) Surfaced.
0657 (I) Sighted Mitsubishi 97 P.B., bearing 090°, southeasterly course, range 8 miles. Submerged. Picked up on Radar at same time.
0835 (I) Surfaced.
0903 (I) S.D. Radar contact 6 miles, coming in. Submerged.
0905 (I) One bomb fairly close.
1335 (I) Surfaced.
1336 (I) Radar contact, 8 miles, coming in fast. Submerged.
1338 (I) One bomb very close. This fellow is pretty good.
1340 (I) Another bomb not so close. Guess 30 miles off the coast was too close to try surface running. They seem to have us tracked in so will have to spend rest of day submerged.
1917 (I) Surfaced.

22 September 1943
0504 (I) Submerged.
1830 (I) Surfaced. Proceeding to new patrol station.

22 to 24 September 1943
Proceeding on surface to new patrol station.

24 September 1943
1600 (K) Arrived on new patrol station.
2330 (K) Abandoned patrol on receipt of CABRILLA's dispatch. Set course to regain track for MIDWAY.

September 25 to October 1, 1943:
Enroute MIDWAY. Cruising on surface. Conducting trim dives and drills.

October 1, 1943
2400 (M) Crossed 180th meridian; changed date to October 1. Changed time to plus 12.
0552 (Y) Sighted air escort 080°, distance 8 miles.
1001 (Y) Moored MIDWAY. Delayed overnight for fuel, and removal of torpedoes.

October 2 to October 6, 1943:
Enroute PEARL. Surface cruising with training dives.

October 3, 1943
0930 (Y) Sighted P.B.Y. bearing 100°, distance 10 miles.

October 5, 1943
0530 (X) Sighted unidentified submarine, distance 8 miles, bearing 104°T. Proceeded to investigate, observing through periscope.
0547 (X) Submarine could not be seen through periscope. Assumed it dove, so went North to avoid. Reported contact.
1428 (W) Sighted SEARAVEN. Exchanged recognition signals.

October 6, 1943
0545 (W) Sighted escort bearing 103°, distance 6 miles.
1000 (W) Arrived PEARL HARBOR.

— page 25 —
1. U.S.S. PARGO - Report of First War Patrol.

(C) WEATHER:
August 18-22 1943 - Pearl to Midway. Calm, light breezes, visibility good.

August 23 to Sept. 3, - MIDWAY to Area. Calm, following wind and sea. Visibility good.

Sept. 3 to 21. - Weather in area was exceptionally good on the whole, with clear days and overcast nights. During time in northern part of area, numerous rain squalls were encountered. During period 19-21 September a Typhoon was encountered with heavy wind, rain and mountainous seas.

Average wind: 2
Average sea: 2
Average barometer: 29.30
Average injection: 80°
Average air temperature: 75°

During Typhoon, barometer dropped to 29.17, and during several hours the rate of fall was .09. Wind reached a maximum of about 60 knots.

(D) TIDAL INFORMATION:
Enroute area counter Japanese current was only definite current noted. Allowance was made for a northerly set from Japanese stream, but no effect was ever noted. Every fix showed us south of our estimated position. On return trip, the Japanese stream and counter current were noted. Received northerly set as far east as 145°E.

Currents in area were unpredictable. However, a definitely northeasterly set of about 3/4 of a knot was noted west of DANJO GUNTO. East of DANJO GUNTO a northerly and southerly set of about 1 knot was experienced. This set changed with the tide.

The soundings listed on the area chart are practically valueless. However, no difficulty was experienced in making landfalls using S.J. Radar.

(E) NAVIGATIONAL AIDS:
TORI SHIMA makes an excellent landfall. It was picked up at 24 miles on a black night.

YAKU SHIMA is convenient in making entrance to area as S.D. picked it up at 38 miles. Entrance to area would be much easier thru TOKARA KITO which is a larger entrance. KUCHINO SHIMA SUDO is a pretty small hole to hit with the currents encountered. During moonlight nights, a vessel could not get thru without being sighted.

-14- ENCLOSURE (A)

— page 27 —
20 Aug. 0905W 26-40 N 165-45 W SNOCK 10 miles 290°R P
2, 22 Aug. 0350X 29-00 N 176-10 W SNOCK 8700 yds 230°R R-S P
3, 31 Aug. 2035I 30-48 N 140-50 E Sampan 4000 yds Northerly 3
4, 31 Aug. 2055I 30-54 N 140-50 E Sampan 6000 yds Northerly 3
5, 2 Sept. 0629I 30-18 N 134-20 E Patrol boat 20,000 yds 150°S
6, 2 Sept. 1750I 29-47 N 132-10 E Patrol boat 13,000 yds 140°S
7, 4 Sept. 0251I 30-06 N 128-02 E 4-ship qon- 15,000 yds 220°S
8, 4 Sept. 0707I 29-58 N 128-50 E 2 ships, un- Unknown Unknown Sound
9, 4 Sept. 0940I 30-01 N 128-55 E unknown type
10, 4 Sept. 1947I 30-25 N 129-32°E 2 unidenti- 4 miles Northerly P
11, 6 Sept. 1830I 31-25 N 129-07 E:ship convoy 16 miles Southerly P
12, 8 Sept. 0100I 31-00 N 127-22 E: Dm light 10 miles Unknown S
13, 9 Sept. 2346I 33-50 N 128-08 E 3 patrol 10 miles Westerly S
14, 10 Sept. 0550I 33-22 N 127-40 E 3 patrol 10 miles Northerly P
15, 10 Sept. 1440I 33-06 N 127-32 E vessels
16, 12 Sept. 0356I 30-44 N 123-03 E Patrol 7500 yds 400°R Patrol vessel.
17, 14 Sept. 1325I 31-22 N 129-16 E Patrol 10 miles S.W. P
18, 16 Sept. 1118I 32-23 N 127-22 E SIBERIA MAR 5 miles 220°P Hospital ship.
19, 5 Oct. 0530X 21-12N 164-34 W Submarine 8 miles Unknown S Unidentified.
20, 5 Oct. 1428N 20-32 N 162-14 N SEABATON 10 miles East S Escort.
21, 6 Oct. 0745V 20-50 N 158-40 W P-585 8-miles 132°S

— page 29 —
U.S.S. PARGO - Report of First Tar Patrol.

(H) ATTACK DATA:

Attack #1.
Convoy picked up on Radar, distance 15,000 yards. Tracked it and determined it to be a three ship convoy, later a fourth ship joined up, course 210°T, speed 11 knots. Decided to get ahead of formation; run with them until they caught up, and then give them the stern tubes. This method was progressing just as we had practiced it in training when our hydraulic plant failed. When this occurred, decided that position in front of screen was rather vulnerable for a boat that could not submerge quickly; so opened out from track and came in from the quarter. Fired a four tube salvo from bow tubes, range 2000 yards, gyro angles: 350°, 345°, 340° and 345°; track angles: 118°P, 123°P, 125°P and 128°P; 2° divergent spread; depth set: 8', 8', 12' and 12'. After firing, changed course to reverse of convoy and retired. Two hits observed, one forward and one aft. Escort in pursuit. Nine minutes later, heard three great explosions on target, great sheets of flame observed; target seems to break in half. Radar pip of target has disappeared at range 7500 yards. Target had been picked up and tracked in from 15,000 yards; Radar had just given T.D.C. a range and bearing of target, range 6900 yards, and T.D.C. was tracking. The T.D.C. operator coached Radar on, but there is no target. Other three targets are still on P.P.I. screen, but the main target has disappeared. The only answer is that target has sunk.

Visibility was variable during approach with rain squalls at various times. At time of firing, the target was clearly visible and was within 1500 yards of this vessel; so that the Commanding Officer and Officer-of-the-Deck got a good view of target, which was identified as an A.O., similar to KYOKUTO MIRU, 10,050 tons, page 264, O.N.I. 208J.

Attack #2.
Sighted convoy while submerged in Radar circle of DANJO GUNTO. Proceeded on normal approach course to gain on convoy, and also got out of Radar range of islands. Surfaced and started end around. After gaining position ahead of convoy Radar track showed it to be a six ship affair, two columns of three each, steering a zig zag course between 150° and 210°, speed 9½ knots. Visibility is quite variable with scattered rain squalls. Started approach from ahead, but at 8000 yards Radar showed two additional screens, both on our side, and well in the van. Light conditions are now against us so decided that attack from quarter astern of escorts is best to avoid detection; so opened out and came in for a 110° track on rear ship. Plan to give him three torpedoes then, shift to next in line. Radar track shows that formation has zigged to 185°T. Commenced approach at 18 knots. When formation became visible, saw that after escort had moved to rear of column, and we will have to pass ahead of him. All ships except the target are similar A.K.'s 5000 to 6000 tons. Target is about 10,000 tons - looks newer than others. This zig has caused the two columns to overlap so will in effect have a double target for each salvo. Fired salvo of three torpedoes at range of 3000 yards, gyro angles: 006, 006 and 004; track angles: 114P, 114P and 115P; one degree divergent spread; firing interval of 8 seconds; depth set: 8', 8' and 8'. Then shifted to target #2 and fired three torpedo salvo, gyro angles: 350°, 350° and 348°; track angle: 130°P, 131°P and 131°P; one degree divergent spread; firing interval, 8 seconds; depth set: 8', 8' and 8'. Turned away to retire. Passed about 1700 yards from after escort.

— page 30 —
U.S.S. PARGO - Report of First War Patrol.

---

**Subject:** U.S.S. PARGO - Report of First War Patrol.

---

**Hits were felt and the following results observed:** Ship#5 sank. Ship #4 smoking heavily forward of bridge. Ship #1 hit aft; whole stern a sheet of flame. Ship #2 has large plume of white smoke or steam from amidships; has turned 70° away and seems stopped. Later explosions were observed on ships #4, #1 and #2. After firing, started retiring with escort in pursuit. Saving stern tubes for him if we get a chance. When 6000 yards from formation shifted S.J. from escorts back to target group giving a continuous sweep of all escorts and targets for P.P.I. screen. At this time, there were only five targets visible. Target #1, which was easily identified as the largest, was still visible, but #5, #4 and #2 had disappeared. The whole formation of eight ships had been clear on P.P.I. from 8000 yards on the approach with the A.K.'s visible at a much greater range. The screens were still there, so the only answer is that ships #2, #4 and #5 have sunk. Unfortunately, formation could not be seen from bridge due to smoke and visibility, and escorts would not permit a return to the scene.

---

**From plot of firing, the hits were scored as follows:**

- Ship #1 -- torpedoes #1 and 2.
- Ship #2 -- Torpedoes #4 and 6.
- Ship #4 -- Torpedo #5.
- Ship #5 -- Torpedo #3.

---

**Results of attack:**

- Sunk: 3 A.K.s similar to SEATTLE or CHICAGO MARU, pages 163 and 164, O.N.I. 208J. 5,700 tons each.
- Damaged: 1 passenger freighter, similar to HEIGO MARU, page 64, O.N.I. 208J. 9,815 tons.

— page 31 —
1. SUBJECT: U.S.S. PARGO - Report of First War Patrol.
2. (---ATTACK No. 2---) (---ATTACK No. 1-9/3/43---)
3. Tubes Fired #1 #2 #3 #4 #5 #6 #3 #4 #5 #6
4. Track-angle 115° 114° 115° 130° 131° 131° 118° 123° 125° 128°
5. Gyro Angle 006 006 004 350 350 348 350 345 340 345
6. Depth Set 81 81 81 81 81 81 81 81 121 121
7. Power High High High High High High High High High
8. Hit or Miss Hit Hit Hit Hit Hit Hit Miss Miss Hit
9. Erratic (Yes-No) No No No No No No No No No
10. Mark Exploder 5
11. Serial No. 878 916 828 3279 829 935 849 777 1375 836
12. Actuation Set (---CONTACT---)
13. Actuation Actual (---CONTACT---)
14. Mark Warhead 16
15. Serial No. 9840 2636 10507 5553 5536 1869 10367 10601 1432 2679
16. Explosive (---TORPEX---)
17. Piring Interval -- 8s 8s 19s 10s 7s -- 15s 15s 10s
18. Type Spread DIVE 1 0 1R 1L 1R 1L 1R 1L 3L 3R
19. S-1 Conditions (---CALM-ZERO---)
20. Overhaul Activity (---S/M BASE, PEARL HARBOR---)

REMARKS:
On both firings from tube #4, the torpedo wobbled on its course for approximately 200 yards before steadying down. It is believed that the torpedo in each case may have lightly struck the shutter during ejection. This will be investigated.

— page 32 —
1
Date: 1751 Z
Date: 2 Sept 1943
Date: 2 Sept 1943
Date: 30-01 N
Date: 30-01 N
Date: 128-53 E
Date: 128-

— page 33 —
1. SUBMARINE MEASURES AND EVASION TACTICS:

Anti submarine measures consisted of:
1. Escorts for convoys.
2. Air coverage of area.
3. Small patrol vessels.
4. Land based RADAR.

Both convoys encountered were well escorted by destroyers that patrolled around convoy. In one case, the destroyers were pinging, in the other they were not. Both attacks were made on the surface, and surface speed and cover of rain squalls used for evasive purposes. Apparently the destroyers do not have Radar.

This area and also the approaches apparently have a good air coverage, judging from the number of planes sighted in the area and its approaches. Submerged patrol during daylight was used effectively to avoid air detection in the area. After the attack on September 7, an extensive air patrol was out. Upon being sighted leaving area, the air patrol persisted in keeping us down.

Numerous small patrol boats were seen in area, but were easily avoided either on the surface or submerged.

A Radar station is definitely established on ME SHIMA of the DANJO GUNTO group. It is believed that they probably have others on various islands. This conclusion is reached because the only contacts were made in southern part of area, well at sea. It is believed that they track the submarine in and route traffic around same. From the number of patrol boats encountered in the northern part of area, it is believed that they must have had us plott in |

— page 34 —
1. SUBJECT: U.S.S. PARGO - Report of First War Patrol.

AUXILIARY GENERATOR:
Enroute from PANAMA to PEARL, auxiliary generator was partially flooded with lub oil. The cause was thought to be carrying the oil level in the engine at the "full" mark on the sounding stick. Submarine Base, PEARL removed the auxiliary generator cooler and carefully removed all trace of oil. Nevertheless, enroute PEARL to MIDWAY, slight traces of oil were noticed on the cooling fins. Enroute to area, this trace of oil increased until there would be several tablespoons full of oil in bottom of generator casing each time after running the auxiliary. The equipment was kept in commission, but this condition is not satisfactory. The oil level in the engine has been kept at the "half full" mark, and the solution of this oil in the generator is still undetermined, although it is known that the oil is coming from the engine past the crankshaft slinger ring.

MAIN ENGINE NO. 3:
After running at full power on the night of September 6, #2 unit of M.E. #3 started overheating. Both fuel oil pumps were cut out and the engine kept in operation until diving the next morning. The unit heated up progressively from the top down as though the water supply or return was restricted or the unit cracked and exhaust gases were entering water space. The lines and gaskets had shown no restrictions and the upper head had shown no gases in the water jacket; the water jacket was blown out with 40 lbs. air by sealing the water outlet and supplying air through the thermometer plug. A piece of CONSOCO four inches in diameter was blown from between the lower head and the supply header. The unit was reassembled and has since run normally.

HYDROGEN DETECTOR:
The hydrogen detector fan motor has been unreliable since the ship was commissioned. In the area, after trying softer brushes and slower motor speed to no avail, the armature finally developed shorts and the commutator has been cut back so far that it is beyond repair. A temporary rig was made by making the battery blowers take a sufficient suction through the hydrogen detector to get reliable readings.

PIT LOG:
The pitmoter log pump bearings became flooded on three occasions, and the control unit on one occasion, although the bellows and carbon seal ring appear normal. The log reads high submerged. This is not a constant error. Sometimes it records correctly and at other times, it is a knot high.

LIGHTING MOTOR-GENERATOR:
The drive belts for the lighting motor-generator voltage regulators continued to fail from breakage after about one month of use. It is recommended that the design of these belts be changed to make them stronger.

— page 35 —
1. CASAULTIES:
(a) The resistance to ground on the starboard antenna fell to 10,000 cts. rendering this antenna unsatisfactory for transmission purposes. The drop has come about gradually indicating possibly a slow leak in the trunk. The antenna trunk will be inspected, cleaned, and tested for tightness.

2. RECEPTION:
In general, it was found that the high frequencies were far superior to the low frequencies. The 415 kcs and 8230 kcs bands gave the best results. The low frequencies were practically useless on station. No letter serial messages were missed.

3. TRANSMISSION:
Two messages were transmitted by this vessel with the following results:
(a) The first message sent on 8470 kcs at a range of 2800 miles from PEARL between 1100 and 1400 G.C.T. The message was cleared in 16 minutes in spite of large amount of deliberate enemy interference. The message was sent twice and receipted for on the FOX Skeds.
(b) The second was sent twice on 8479 kcs. After waiting several hours for a receipt with no success, it was repeated twice again using 4235 kcs and once using 4155 kcs. The first indication that the message had been received was in it's appearance on the N.P.M. FOX Skeds.

— page 36 —
CONFIDENTIAL::

Subject:  U.S.S. PIRRO = Report of First War Patrol.

On both occasions, shortly following transmissions, some unknown station, posing as various Allied stations, requested this vessel send a series of WMS. These requests were ignored.

4. TESTS:
Tests were conducted by this vessel to determine the effectiveness of various frequencies used by N.P.M. with the following results:
(a) 1668 kcs was usable while on the surface until the range reached 2500 miles. At about this point the signals would fade out completely during the hours of 0400-1100 G.C.T. Effectiveness continued to decrease with the increase in range, such that this frequency was practically useless on station. While on station and submerged, several attempts were made to copy these signals, using the loop antenna and the RAD (low frequency receiver), with no success.
(b) 306 kcs faded to signal strength of 0-2 (X5) beyond 1000 miles and thereafter was not heard at all.
(c) 106 kcs was not effective beyond 1000 miles.
(d) The 4115 kcs series was found to be the most effective. The 4115 kcs and 8230 kcs bands were most useful during the daylight hours.

-25- ENGLISH (4)

— page 37 —
U.S.S. PARGO - Report of First War Patrol.

(M) RADAR:

Both the S.D. and S.J. Radars operated satisfactorily throughout the patrol.

The usual troubles, such as the decadence of tubes, variations in voltages and occasional detuning of the R.F. circuits were detected and remedied. Additional trouble was experienced in the S.J. with a leaking packing gland in the antenna assembly and noisy blower motors. The gland had been repacked at Pearl and tightened at Midway, but it leaked so badly that it had to be repacked again enroute to our area. With the present design of the lower antenna assembly, it is quite a job to get to the packing gland due to the necessary removal of the entire lower antenna assembly - drive-gears, resonant cavity, collector rings and polyethylene plug. The length of time required to do this job delayed our departure from MIDWAY. The blower motors had been lubricated at PEARL, but became more noisy with time and sparking commutators caused a flicker on the cathode ray screen. Brushes were replaced on one and the greatest offender was replaced with a spare.

Before leaving PEARL, a remote P.P.I. indicator was installed. Although this unit was originally designed for the S.G. Radar unit, it was adopted to be used with the S.J. This P.P.I. sweep did not come up to expectations as a general search unit; due mainly to the fact that our antenna's speed of rotation was not sufficient to maintain a 360° luminescence and the pips from targets beyond 9500 yards were not of sufficient amplitude to give a distinct indication.

However, when it came to attacking a convoy, the type of data presentation obtained by the P.P.I. was superb. Unlike the "A" sweep indicators, which give range on one bearing alone, the P.P.I. scan presents the ranges of all targets on all bearings. The fidelity and dependability of this indicator is best illustrated by the fact that each member of the convoys returned a clearly visible echo throughout the attacks; an OTORI class DD, with a small angle on the bow, made a good pip at 8500 yards. The simultaneous utilization of these two types of indicators procure data with the optimum of speed and precision.

This panoramic presentation of the convoy's disposition during the whole period of contact was an unestimable aid in planning the approach, carrying out the attack and, combined with the O.O.D.'s visual observations, determining the destruction to the enemy.

The antenna array of the S.D. is too high. This can be judged from the facts that our first plane contacts were at a low altitude and were spotted by the look-outs before they were detected on the S.D.; also TORI SHIMA, 1,268 ft. was detected at miles while YAKU SHIMA, 6,195 ft. was detected at 38 miles.

The S.D. showed evidence of other Radar in the vicinity of 30N. Lat., 142E. Long. and 30N. Lat., 170E. Long. These units must have had a higher pulse rate than the S.D. as their pulse swept across our screen from right to left.

Atop the highest point on DANJO GUNTO was a structure which resembled a Radar antenna. It looked like a 35 ft. parabola mounted on a rectangular frame, which extended beyond the edges of the reflector. Pictures were taken through the periscope.

— page 38 —
1. RECOMMENDED:
   (1) Redesign the drip panel on the S.J. antenna so as to make the bolts on the packing gland more readily accessible.
   (2) Supply all submarines with F.P.I. indicators. If the type QJ-55ACD is installed, develop a shorter sweep (3 miles). This sweep will give a greater separation of targets during the approach and attack.
   (3) As long as the present SD antenna is used, keep a sharp look-out for low flying planes.
   (4) A consideration for future submarine radar: Some form of periscope whip type antenna for daylight approaches, which will give range alone.

(N) SOUND GEAR AND SOUND CONDITIONS:
(1) Sound conditions: Sound conditions were poor. Noise level was high and marked by continuous popping and whistling noises. A short recording of these submarine torpedoes was made. The Baththermograph showed water to be isothermal at 80°F down to 150 ft, and from 150 ft to 300 ft to have a uniform negative gradient dropping to 68°F at 300 ft. Ranges varied from 6000 yards maximum down to 3000 yards maximum.

The sonic sound receiver (JP) picked up the targets at about the same time as the supersonic except during the period when ship was rigged for silent running when the sonic receiver seemed to be somewhat more sensitive.

The J.P. proved very effective and it is recommended that they be installed in all boats. It is also hoped that this vessel will be able to obtain a set of spare parts for this equipment during this refit.

(2) Casualties: (a) Three days out of MIDWAY, the packing gland on the QJ-JK (port) projector began to leak badly. This leakage first occurred on a deep dive and continued at shallow depths. The leak was remedied by taking up on the packing gland.

(b) Prior to arrival in the area, the sound projectors were used relatively little. On Sept. 3, it was found that training the QJ-JK (port) projector at any speed above a very slow rate produced a pronounced shuddering of the forward part of the ship. The following remedies were tried: (1) The sea chest was blown several times. No definite improvement was noted. (2) The projector packing gland was greased and the grease well worked in. This eliminated the trouble temporarily. (3) The training motor and drive gears were inspected and found to be in good working order.

On Sept. 5, the QB (stbd) projector developed the same trouble as described above and steps 1, 2 and 3 were repeated, as in the case of the port projector, with the same results. In addition, feelers were inserted between the shaft and the packing gland to determine if the packing was fouled or had tumbled. No indication of fouling or tumbling were apparent in either gland.

The unsatisfactory conditions, described above, limited the use of sound projectors to very slow training under normal conditions and rendered them useless when in close contact with the enemy except for constant bearing listening.

It is recommended that alignment of both projectors be checked while the ship is dry-docked and that both packing glands be repacked.

— page 39 —
U.S.S. PARCO - Report of First War Patrol.

Subject:  Density layers were noted throughout the area. Daily
Bathythermograph cards were taken and the results are listed below.

| Date | Time | Position | Surface Temp. | Depth Temp. | Lowest Temp. | Remarks |
|------|------||||||
| 2 Sept. | 21002 | 30-05 N | 82 | 160 | 70 (280) | Isothermal to 160, break to left. |
| 3 Sept. | 23102 | 30-09 N | 84 | 105 | 76 (300) | Isothermal to 110, break to left to 80, then gradual to 76 at 300 ft. |
| 4 Sept. | 20132 | 29-58 N | 82 | 180 | 77 (300) | Isothermal to 180, break to left. |
| 5 Sept. | 20202 | 31-10 N | 80 | 150 | 69 (300) | Isothermal to 150, break to left. |
| 6 Sept. | 20302 | 31-50 N | 80 | 200 | 72 (300) | Isothermal until 200, break to left. |
| 7 Sept. | 20482 | 31-00 N | 80 | 180 | 72 (280) | Isothermal to 180, break to left. |
| 8 Sept. | 20452 | 31-50 N | 76 | 210 | 62 (270) | Isothermal to 210, break to left. |
| 9 Sept. | 20302 | 33-04 N | 80 | 180 | 65 (300) | Isothermal to 180, breaks to left to 210; Isothermal to 300, Isothermal to 100 ft, breaks to left. |
| 10 Sept. | 20002 | 33-27 N | 78 | 100 | 58 (300) | Isothermal to 100 ft, breaks to left. |
| 11 Sept. | 19492 | 31-34 N | 80 | 280 | 63 (300) | Isothermal to 80, break to left to 66; isothermal to 280, break to left. |
| 12 Sept. | 20502 | 30-41 N | 79 | 180 | 69 (300) | Isothermal to 180, break to left. |
| 13 Sept. | 20552 | 30-43 N | 81 | 100 | 71 (300) | Isothermal to 110 ft, breaks to left. |
| 14 Sept. | 21002 | 31-05 N | 79 | 170 | 70 (300) | Isothermal to 170 ft, breaks to left. |
| 15 Sept. | 21002 | 30-59 N | 82 | 155 | 70 (300) | Isothermal to 155 ft, breaks to left. |
| 16 Sept. | 21302 | 32-05 N | 77 | 100 | 63 (300) | Isothermal to 100, break to left. |
| 17 Sept. | 22002 | 32-34 N | 80 | 90 | 64 (300) | Isothermal to 90 ft, break to left. |
| 18 Sept. | 22002 | 32-08 N | 81 | 100/240 | 58/64 | Breaks to left. |

— page 40 —
1. HEALTH, FOOD AND HABITABILITY:

The health and morale of the officers and men, in general, was excellent. The only illnesses that required admitting to the sick list were one case of Tonsillitis, Acute, and the extraction of teeth #3. Both cases returned to duty after one day on the sick list. One case of D.U. Syphillis was noted and precautionary measures were used until a positive diagnosis could be established. There was chronic sensitization among a small percentage of the crew with no serious results.

The air on the days submerged never reached a higher carbon dioxide content than 2.5%. Living conditions submerged were excellent. The air conditioning unit in the Conning Tower is a decided improvement.

The food was only fair, but it is believed that this will improve as the cooks gain more experience.

The general alertness of the crew was well above average, even at the end of all-day dives.

(Q) PERSONNEL:

The performance of duty of both officers and men was of the highest order in keeping with the highest traditions of the Naval Service. Although the majority of the men had never seen war experience, they performed their duties in action with a coolness and dispatch that could not have been bettered by veterans.

The morale was high at all times, and all hands were eager for action. They were disappointed that contacts were so few, and that it was necessary to leave the area early due to fuel shortage.

The high-speed surface approaches are very invigorating and highly recommended as a morale builder.

(R) MILES STEAMED — FUEL USED:

| Mileage | Fuel |
||------|
| 4,179   | 45,360 |
| 2,425   | 23,554 |
| 4,525   | 43,400 |

(S) DURATION:

| Days | Enroute to Area | Days | Enroute to PEARL | Days | Submerged |
|------||------||------||
| 15   |                 | 18   |                 | 17   |           |
| 18   |                 | 19   |                 |      |           |

(T) FACTORS OF ENDURANCE REMAINING:

| Terpodeos | Fuel | Provisions | Personnel |
||------|||
| 14        | 6600 | 30 days    | 20 days    |
| Limiting factor, this patrol: | FUEL |

— page 41 —
1. It is believed that the routing of the traffic in this area is dependent on the submarines present. The first contact was encountered in the southern part of area away from the reported traffic lanes westward of DANJO GUNTO. Just prior to our entering area, SEAMOIR had sunk ships in the normal traffic lanes; therefore it is believed the convoy we contacted was routed east of those lanes because of her action. Our second contact was still further eastward, and it is believed that we had been plotted in by shore based Radar observed on ME SHIMA, DANJO GUNTO, and that this was an attempt to route the traffic around us. No more contacts were made, although the area was covered thoroughly. The only conclusions that I can draw from this is, either they kept us plotted in by Radar and successfully routed the traffic around us, or they held it up, sending it thru area in a few large convoys instead of scattered small ones. In this way they might have gotten them by us while we were at the other side of area. It is not believed that the number of convoys indicated by previous patrols in this area could have gotten by us unless they knew where we were.

(2) No evidence was seen of large sailing junks or other small craft transporting supplies from the mainland. No fishing activities were indicated.

(3) The area appears to have excellent air coverage. There does not seem to be an excessive amount of small patrol craft in the area. However, the regularity with which they picked us up in the northern part of area indicates shore based Radar.

(4) It is recommended that #4 Main Ballast Tank be converted to a Fuel Ballast Tank. If this is not done, it is recommended that the speed to station be reduced to one-engine speed in order that a longer time may be spent in station. It is estimated that this would require one more day to reach station, but would save fuel enough to allow nine more days on station.

(5) The P.P.I. screen proved it's worth in the two night attacks on convoys. This is a wonderful instrument, and gave a clear picture of the whole situation during both the attack and retirement phases. Without it these attacks could not have been carried out with nearly as good an estimate of the situation. Its effective range appears to be about 9000 yards, but once inside that range, it leaves nothing to be desired. It is recommended that all submarines be equipped with P.P.I. screens as rapidly as possible, as they are not only invaluable as attack instruments, but also are valuable in assessing damage during the retirement phase of the engagement when the relative movement of the convoy and escorts are too confusing to obtain an accurate picture with the S.J.

(6) The below water sound heads were useless for evasive purposes due to their excessive noise. It is recommended that the vessel be drydocked during this refit and the alignment checked.

— page 42 —
1. The Commander Submarine Division ONE TENTY TWO, San Francisco, California, 8 October 1943.
From: The Commander Submarine Division ONE TENTY TWO.
To: The Commander in Chief, United States Fleet.
Via: (1) The Commander Submarine Squadron TALVE.
       (2) The Commander Submarine Force, Pacific Fleet.
       (3) The Commander in Chief, U.S. Pacific Fleet.
Subject: U.S.S. PARGO (SS264) - Report of First Patrol.

1. This first patrol occupied a period of 49 days (FEARL to FEARL) with 18 days in area southwest of KYUSHU.

2. There were sixteen enemy ship contacts which embraced one four-ship convoy, one eight-ship convoy, numerous patrol vessels and sampans, one hospital ship. There were nine enemy air contacts.

3. The convoys were brilliantly attacked in night surface actions and a large tanker was sunk in the ship's first engagement. Four ships were struck in the second attack and it is believed that three of them sank and that the other one was seriously damaged.

4. The ship is in good material condition and it is expected that refit will be accomplished in the normal time.

5. The successful employment of the "home made" P.P.I. screen is noted with pleasure. This is an adaptation of surface ship equipment, first suggested and accomplished by U.S.S.S. S-31 under command of Lieutenant Commander Robert F. SULLAR, U.S. Navy.

6. The Division Commander congratulates the Commanding Officer, Officers and Crew for this successful first patrol.

F.B. WARDER.

— page 43 —
1. The Commander Submarine Squadron Twelve.
To: The Commander-in-Chief, United States Fleet.
Via: (1) The Commander Submarine Force, Pacific Fleet.
       (2) The Commander-in-Chief, U.S. Pacific Fleet.

Subject: U.S.S. PARGO (SS264) - Report of First War Patrol.

1. The remarks and summation of damage made by the Commander Submarine Division 122 are concurred in.

2. The Commander Submarine Squadron Twelve heartily congratulates the Commanding Officer, Officers, and Crew of the PARGO for a very successful first war patrol. It is believed that the PARGO should be credited for having inflicted the following damage to the enemy:

SUNK

1 AK (Similar to KYOKUTO MARU) 10,500 tons
3 AK's (Similar to SEATTLE or CHICAGO MARU) 11,100 tons

Total 27,600 tons

DAMAGED

1 AR-AP (Similar to HEIGO MARU) 9,815 tons.

J. B. GRIGGS.

— page 44 —
1d
FF12-10/A16-3(8)/(16) SUBMARINE FORCE, PACIFIC FLEET
Serial 01468
CONFIDENTIAL
Third endorsement to
PARGO Report of
First War Patrol.
COMSUBSPAC PATROL REPORT NO. 272
U.S.S. FARGO - FIRST 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. FARGO (SS264) - Report of First War Patrol.
(18 August to 6 October 1943).

1. The first war patrol of the PARGO was conducted in the East China Sea.
2. The PARGO carried out aggressive night attacks on two convoys. Excellent use of the new PT apparatus installed as an experiment enabled the PARGO to analyze the night attacks quickly and efficiently.
3. The attack on the six ship, escorted convoy was extremely productive. Six torpedoes were fired and six hits obtained, sinking three ships and damaging a large cargo-passer ship.
4. The apparent presence of an enemy radar station on Me Shima is of note.
5. This patrol is considered successful for the purpose of Combat Insignia Award.
6. The Commander Submarine Force, Pacific Fleet, congratulates the Commanding Officer, officers, and men for this aggressive and successful first war patrol. The PARGO is credited with inflicting the following damage to the enemy:

SUNK

1 - Tanker (KYOKUTO MARU class) - 10,050 tons
1 - Freighter (CHICAGO MARU class) - 5,866 tons
1 - Freighter (CHICAGO MARU class) - 5,866 tons
1 - Freighter (CHICAGO MARU class) - 5,866 tons

TOTAL: 27,648 tons

— page 45 —
1-10/AL6-3(8)/(16) SUBMARINE FORCE, FACIFIC FLEET 1d
Serial 01468 Care of Fleet Post Office,
San Francisco, California,
October 15, 1943

THIRD ENDORSEMENT to
PARGO Report of
First War Patrol.

COMSUBSPAC PATROL REPORT NO. 272
U.S.S. PARGO - FIRST WAR PATROL.

Subject: U.S.S. PARGO (SS264) - Report of First War Patrol.
(18 August to 6 October 1943).

DAMAGED

1 - Cargo-Passenger Ship (HEIGO
MARU class) 9,815 tons

C. A. LOCKWOOD, Jr.

DISTRIBUTION:
(Complete Reports)
Cominch (5)
GNC (5)
Cincpac (6)
Intel. Cen. Pac.
Ocean Areas (1)
Conservpac
(Adv.Base Plan.Unit (1)
Cinclant (2)
Comusblant (8)
S/M School, NL (2)
Comsopac (2)
Comsowespac (1)
Comsuboweapac (2)
CTF 72 (2)
CTF 16 (1)
Comsubspac (18)
SUBAD, MI (2)
ComsubpacSuborddom (2)
All Squadron and Div.
Commanders, Subspac (2)
U.S.S. FARGO (1)
(Endorsements only)
All Submarines, Subspac (1).

J. A. WOODRUFF, Jr.
Flag Secretary.

— page 46 —
89264/A16-3
Serial (023)
DECLASSIFIED

From: The Commanding Officer,
To: The Commander-in-Chief, UNITED STATES FLEET.

Vital:
(1) The Commander Submarine Division CNT TWENTY-TWO.
(2) The Commander Submarine Squadron TWILIGHT.
(3) The Commander Submarine Force, PACIFIC FLEET.
(4) The Commander-in-Chief, U.S. PACIFIC FLEET.

Subject: U.S.S. PT-601. Report of "Her Patrol Number TWO.

Enclosure: (A) Subject Report.
(B) Track Chart (ComSubPac only).

1. Enclosure (A), covering the second war patrol of this vessel conducted in area month of Talaun and west of the Marianas, Southern boundary 6CN, Western boundary 14CN, Northern boundary 20CN, Eastern boundary 34CN, Mariana's during the period October 30, 1943 to December 8, 1943, is forwarded herewith.

I. C. EDDY.

6/3128

— page 48 —
1645 (Y) Deported Midway in company with SNOOK and HARDER, proceeding to area. Air escort until sunset. Formed line of bearing distance 15 miles.

November 3 to November 12, 1943
Proceeding to area: conducting daily dives, control and emergency drills. Held search and attack exercises with SNOOK and HARDER.

November 4, 1943
000 (Y) Changed date to November 5, 1943.

November 5, 1943
1127 (M) Sighted B-25 bearing 114°(T) distance 8 miles. Exchanged recognition signals.
1513 (M) Sighted B-25 bearing 090°(T) distance 6 miles, easterly course.

November 6, 1943
2055 (M) #2 main engine back in commission.

November 8, 1943
1600 (L) Sighted aircraft, type 'unknown. Submerged to avoid detection.

November 9, 1943
1900 (L) Formed column distance 20 miles to obtain better coverage of traffic lanes. 'Order of ships: SNOOK, PARGO, HARDER.

November 10, 1943
2300 (K) Increased formation speed to 15 knots.

November 12, 1943
0000 (K) Increased formation speed to'17 knots. Commenced patrolling on line. Distance between ships 20 miles. One hour legs, speed 10 knots.
1340 (K) Sighted smoke bearing 050°(T). Commenced approach on surface maneuvering to gain position ahead. Sent contact report.
1355 (K) Received contact report from HARDER.
1550 (K) In position ahead of target, so submerged and commenced closing him. Target is large freighter with one escort.
1555 to 1600 (K) Heard four explosions. Sounds as if the HARDER beat us to it.
1615 (K) Sighted ship bearing 006°(T) distance 10 miles. Commenced approach.
1631 (K) Identified target as small patrol vessel so broke off approach.
1750 (K) Sighted target bearing 010°(T). Too dark to make out. Started approach.
1825 (K) Observed gun fire bearing 018°(T). Have lost target so opened range before surfacing.
1842 (K) Surfaced. Radar contact tearing 15°(T), range 12,000 yards. Proceeded toward to investigate.
1926 (K) Radar contact identified as HARDER. Exchanged signals.
1950 (K) Changed course to South proceeding to new station.
2300 (K) Sighted Farellon de Pajaros Island bearing 060°(T), nine miles.

-2- ENCLOSURE (A)

— page 49 —
1934
2332 (K) Radar contact bearing 283°(T), range 14,000 yards. Commenced track.

November 14, 1934
150 (K) Identified contact as either SCORPION or HARDER probably SCORPION. Resumed course to point.
1250 (K) Arrived patrol station and commenced patrolling on line of bearing distance 20 miles course 050 and reverse, speed 10 knots, one hour legs.
2230 (K) Discontinued stationary patrol and proceeding to next point in same line, same distance.

November 16, 1934
1430 (K) #1 main engine out of commission. Shear pin in supercharger sheared. Piston rings on #4 unit missing.

November 17, 1934
0730 (K) Arrived new patrol station. Patrolling on line of bearing course 062° and reverse, speed 10 knots, one hour legs, distance 20 miles.
0740 (K) #1 main engine back in commission.
0945 (K) S.D. contact, range 5 miles. Submerged.
1006 (K) Surfaced.
1007 (K) S.D. contact, range 3 miles. Submerged.
1047 (K) Surfaced.
1110 (K) S.D. contact, range 5 miles. Submerged.
1225 (K) Surfaced.
1240 (K) Formation course changed to 152° to move patrol further South to try to avoid aircraft.
1250 (K) Sighted patrol bomber type "Sally" bearing 030°(T), distance 6 miles, on Southeasterly course. Submerged.
1337 (K) Surfaced.
This up and down system is rather discouraging, from messages received from HARDER and SNOOK they are having same trouble. This bird is playing us like the keys of a piano.
1430 (K) Arrived new station and resumed patrol.
2030 (K) Changed course to 120°(T) patrolling along track to new station.

November 18, 1934
1150 (K) Arrived new patrol station and resumed normal patrol.
1500 (K) Discontinued present station proceeding to new patrol station.

November 19, 1934
0400 (K) Arrived new station commenced stationary patrol, usual distance, course 040°(T) and reverse, speed 10 knots.
0501 (K) Two pips on radar bearing 273°(T), range 22,000 yards. Put target on stern and commenced plot. Looks as if set up is perfect. His course is 100°(T), speed nine. He will pass right over us so changed course toward target and proceeding in slowly in order to get off attack during dawn when we can come in fairly close at radar depth.

-3- ENCLOSURE (A)

— page 50 —
0507 (K) Sent contact report. SN00K receipted for it.
0528 (K) Convoy has zigged 50 degrees left which is not good as we are now about 9,000 yards off track, Changed course to close track going ahead standard on four engines trying to get on track before we have to dive. It is still pretty dark, and think we will be able to stay on the surface until the range has decreased to 10,000 yards without being sighted. Will close track as much as possible and dive between 12 to 14 thousand yards.
0530 (K) We now have five ships in sight. Three large merchantmen and two escorts. One escort is definitely a D.D. the other looks like an escort vessel. We are still trying to get contact report off to HARDER.
0540 (K) With range of 13,000 yards escorts turned toward us; so we dived. I don't see how they could have seen us at this range as it is still pretty dark, and excoriance we have had picking up HARDER and SN00K during twilight with this paint job have been very encouraging. They may have D.D. used us or seen the sparks from the antenna, which looks like a cigarette lighter. There is much signaling, firing of rockets and gun fire in target group. They definitely think there is something rotation in Denmark. Hope they aren't positive of our presence.
0552 (K) Heard three explosions, they seem to be throwing a few ash cans around for practice.
0554 (K) Another depth charge. They are way off and just wasting the things. The destroyer and escort vessel are coming over to investigate, the rest of the convoy is milling around still signalling. This gives us good bearings and should also help the HARDER and SN00K find the target.
0557 to 0630 (K) Eight more depth charges still way off. If he keeps this up he will be fresh out by the time he reaches us I hope. The convoy is going over the hill to the Southwest. At 0606 it looks as if this destroyer is going to keep us away from convoy so shifted to him as target. Will try to get him so we can surface and chase convoy. He is a pretty small and shallow target so will shoot three fish.
0606 to 0806 (K) Trying to get into attack position on destroyer. He is searching an area about eight miles away and won't come near enough for a shot. Identified as a Chiodri or Otorl class torpedo boat.
0807 (K) Looks as if he has steadied on a course toward us and my come close enough for a hot this time. Am still heading up for him and will hold this until he gets close enough then come around to fire on about a 90 track. Want to have a torpedo run of about 1000 yards as he is very shallow draft and I want to give the fish a chance to get up to depth.
0826 (K) He has finally gotten into a range of 1100 yards, we are on a 110 track, so commenced firing. The set up looks good bearings are checking and torpedo run is 1100 yards so the fish should be running a little above 6 feet. Just as we commenced firing he sighted our periscope, and all hands on deck ran aft to the depth charges. Fired three torpedoes on tracks of 110° to 120° Port, gyro angles 353°,

-4- ENCLOSURE (A)

— page 51 —
351° and 350, depth set 6 foot; 40 divergent spread. Sound tracked them out and reported them running for the target. The set up looked good. Believed they must have passed under him as he only draws six feet, nine inches.
0828 (K) He is now turning toward so ordered 300 feet rig for depth charge. His first pattern of four went off as we passed 180 feet. These were fairly close.
0828 to 0857 (K) Destroyer continued making runs dropping charges in patterns of two or three charges.
0857 to 1000 (K) He continued to echo range and listen alternately, but made no more attacks. We evaded by keeping tail to him and running away at constant speed.
0952 (K) Heard distant explosion possibly a torpedo from one of the other boats.
1025 (K) Heard three more distant explosions possibly torpedoes.
1040 (K) At periscope depth. He is in sight to southward, range about 15,000 yards. Continued heading away and lost him at about 1145 K. Surfaced and started searching to South trying to get the dope from the other boats. No reply from either HARDER or SNOOK.
1245 (K) Heard three more distant explosions. Either the other boats are having a field day or are being worked over.
1252 (K) More distant explosions.
1417 (K) SNOOK sent message "Have just surfaced, what is dope?"
421 (K) HARDER sent message telling of attack on another convoy. We didn't get contact report on this one.
1432 (K) HARDER sent out contact report on her convoy which is North of us. We are still proceeding South searching for our convoy.
1703 (K) SNOOK reported that she started after HARDER contact this morning then shifted to ours. She didn't see either convoy. She is now searching for ours.
2315 (K) Pip on radar 030°(T), range 25,000 yards. Looks as if we have found our convoy. Started tracking from ahead. Will make sure we don't get sighted this time. Sent out contact report to HARDER and SNOOK. Had trouble getting this off.

November 20, 1943
0120 (K) Have established course of target as 150°(T), speed 10 knots. We are on their track and running with them to determine if they are zigging. There are three ships in column, distance between first and second 1,000 yards, second and third 1,500 yards. Have not Picked up escorts yet. We will dive to radar depth at 20,000 yards pull out from the track and let the number two ship have three from the bow tubes; the number three, which is definitely the largest, the three others, then turn and give our storm tubes to the number three ship.
0220 (K) Went to battle stations. Dived and started approach.
0240 (K) Have them on radar again, resumed tracking running down their course from ahead.

— page 52 —
0247 (K) Commenced opening out from Track. Plan to get out 2,000 yards from their track parallel then until it is time to start in for a firing position. Will try to fire a ninety track at the second ship then swing to third one and should get between seventy and ninety track on her. Will have a torpedo run of about 1,300 yards.

0301 (K) Picked up escort, range 9,350 yards. He is ahead and slightly on other side of formation.

0305 (K) Went to periscope depth to let escort get by.

0315 (K) Picked up target thru periscope very dim but bearing checks with T.D.C. bearing; so set up must be correct. Visibility hazy and apparently rain squalls about target.

0320 (K) Fired three torpedoes at target on 80 to 85° track, range 1,750 yards, torpedo run 1,700 yards four degree divergent spread, gyro angles 357 to 006, depth set 10 feet. Tried to shift to other target but could not find him with periscope. Sound has fast screws; escort must have picked us up. Cannot see anything thru periscope.

0325 (K) Three explosions fairly distant. Went deep and rigged for depth charge. No more explosions so have decided explosions must have been our own torpedoes.

0335 (K) Returned to periscope depth. Nothing in sight still.

0349 (K) Radar depth.

0351 (K) Closest target 18,000 yards.

0356 (K) Surfaced. Still have the three ships at a range of 20,000 yards. They have changed course 60 degrees to the left to 090°(T). Resumed tracking and started an end around to the Southward. Two chances, both beautifully harmed have us feeling low. The approach still looks good on paper but results are lousy.

0754 (K) Sighted what appears to be mast bearing 324°(T). Commenced to track from ahead. He appears to be on base course 150°(T), zig zagging speed ten.

0914 (K) Have lost target. Changed course to Westward to see if we can find him again.

0940 (K) Still no sign of target, have been searching to North and West for him.

0951 (K) Changed course to 128°(T) to run down his expected line of advance. Conducting stationary patrol on his track waiting for him to overtake us.

1433 (K) He has not shown up yet so continued to South searching.

1800 (K) Still no sign of target so changed course to 2590(T), proceeding to next station. Set rendezvous for SN00K for 0800 (K) the 21st. HARDER released to proceed to Midway having expended all torpedoes.

November 21, 1943
0618 (K) SN00K joined up and took station astern.

2016 (K) Passed Pagon Island aboard to starboard.

November 22, 1943
0650 (K) #2 main engine out of commission. Shear pins sheared. Supercharger chain broken. Teeth missing in sprocket. Supercharger shaft twisted and frozen.

— page 53 —
0717 (K) Sighted SNOOK astern. She closed and exchanged signals.
: 2327 (I) Pip on radar bearing 070°(T), range 12,000 yards. Tracked and proved to be SNOOK.

: 0800 (I) Slighted SNOOK astern.
: 1100 (I) SNOOK closed and exchanged signals. Began stationary patrol on station.
: 1105 (I) #3 main engine out of commission. Spherical nut keeper shattered.
: 1420 (I) #3 main engine back in commission.
: 1452 (I) Sighted SNOOK bearing 092°(T) distance 10 miles.
: 1805 (I) Secured patrol proceeding to new station.

: 1615 (I) Commenced patrolling on new station.

: 0810 (I) Sighted SNOOK bearing 103°(T), distance 10 miles. She closed and exchanged signals.

: 1115 (I) Secured patrol station shifting to new point.

: 0715 (I) #4 main engine out of commission due to cracked division cover.
: 1640 (I) #4 main engine back in commission.

: 0915 (I) Arrived new patrol station. Commenced stationary patrol, usual formation.
: 1505 (I) Sighted smoke bearing 294°(T), distance 20 miles. Commenced tracking. Sent contact report to SNOOK.
: 1816 (I) Target is on a Southerly course. We are well off the track, will have to track him until sunset and then get in a night attack.
: 1820 to 2000 (I) Crossings astern of convoy and gaining position on other flank.
: 2003. (I) Pip on radar at 5,000 yards. Radar interference. Looks like the SNOOK has also come over to this side. Started tracking SNOOK and find that she is drawing aft. Apparently she has discovered us and is going back to other side. "We are continuing to gain position ahead."

— page 54 —
026 (I) In position ahead and on flank. Individual plot of convoy disposition shows it is the same as before. Do not know whether leading ship or flank ship is escort. Docided to go in for leading ship, give him three from bow tubos on about a seventy track; then give the other three bow tubos to the near ship in the line and use the stern tubos on the second ship in the line as we retiro.

: 152 (I) While coming in for the attack on the leading ship, range 6500 yards, he turned toward us and started moving over to our side of the formation. Don't believe he has seen us yet so slowed to let him come on.

: 159 (I) He has come in to 3700 yards, we can see him; looks like a large D.D. His angle on bow is zero and he is speeding up; so went ahead flank to get some speed for diving. I'll give him three fish down the throat and dive. Don't understand how he sighted us as it is a very dark night and we could not see SN00K at 4500 yards when we had her on radar.

: 2201-55 (I) Fired a three fish salvo, 30 divergent spread, 1800 yard torpedo run, zero track, 12 second firing interval, gyro angles 353 to 359, depth setting 6 feet. Submerged and ordered 300 feet. Radar range 1950 yards, he is coming in fast.

: 2203-05 (I) First torpedo exploded. Radar range 1700 yards. This time is perfect for torpedo run so it should be the first torpedo hitting the destroyer.

: 2203-45 (I) Radar went under, range 1360 yards.

: 2205 (I) While passing 120 foot for explosions, feels like he is sinking and all his depth charges are going off at once; or he has laid a pattern pretty close to us.

: 2207 (I) Distant explosion may be torpedo or members of the convoy throwing over depth charges.

: 2208 (I) Another explosion same as above.

: 2209 to 2214 (I) Six depth charges not close.

: 213 (I) Three depth charges fairly close.

: 2214 to 2302 (I) Spent steering various courses with screws astern. No screws heard very near looks as if they aren't going to bother us very much.

: 2303 (I) Distent explosion sounds as if SN00K is making attack.

: 2314 to 2316 (I) Three more distant explosions sounds like torpedoes.

: 2318 (I) Started up to periscope depth.

: 2325 to 2329 (I) Five more distant explosions. Sounds as if SN00K is being worked over.

: 2344 (I) At radar depth, nothing on radar.

: 2355 (I) Four more distant explosions.

: 2357 (I) Surfaced. Pip on radar, 11,000 yards. Commenced tracking.

: November 29, 1943

: 0039 (I) Picked up second target on radar. They seem to be on Southerly course speed still about 7 knots. Started end around for attack. Second target is drawing away from first.

: 0230 (I) Range 7,000 yards up ahead of target, started in for attack. Plan to fire stern tubes on about a 700 track at range of 2,000 yards. Target is zigging between 0700 and 1700 he looks kind of flighty.

— page 55 —
35 (I) U.S.S. PIRGO - Report of Second War Patrol.

I am out on right flank of his zig plan and expect to catch him when he is out on this side. His zig plan does not seem to have any regular interval.

Range 4,500 yards looks as if he is going to be too far out for a stern shot so will give him bow tubes. Target is swinging slowly to right. He apparently has not seen us; so at

Fired four bow tubes on fifty five port track, range 1,800 yards, 3 divergent spread, torpedo run 1,700 yards, gyro angles 001 to 007, depth set 8 and 10 feet.

Started to retire at full speed.

0234 to 0244 (I) Two hits observed.
0245 to 0246 (I) Two explosions. Target started firing at us, range 1400 yards. He is not very accurate. Continued to retire to Northeast at full speed. He continued firing intermittently until

0254 (I) When O.O.D. saw him sink and radar reported that he had disappeared. He fired a total of 14 rounds, none close.

0255 (I) Started to return on last true bearing of target. Target was identified when range was 1,400 yards as a standard 5,000 to 6,000 ton freighter similar to Yuki Maru, 5704 tons. Page 213 ONI 208 J.

0312 (I) Returned to spot of sinking, nothing in sight so started to search for other target.

0330 (I) Discovered full ground on main controllers.

0406 (I) Lying to trying to trace down ground. Discovered to be on port side. So put that side out of commission to investigate. Went ahead on starboard shaft.

0543 (I) Sighted what appears to be an escort or destroyer bearing 330°(T), distance 8 miles, angle on the bow zero. Went ahead full on starboard shaft, ordered port motor put back in commission. Tracking from ahead until we have both shafts.

0613 (I) Port motors back in commission, reversed course to investigate ship previously sighted.

0740 (I) Picked up smoke bearing 302°(I). Commenced tracking.

753 (I) Target appeared out of a squall so submerged to avoid being detected. Commenced approach.

0820 (I) Sighted mast of target. Looks as if we are pretty far off track. Came to normal approach to close.

0847 (I) Distant explosion. Now we have second ship astern of first. Looks like a small tanker and a passenger freighter about 5,000 tons. Targets are zig zagging radically.

0945 (I) Sighted escort approaching from ahead of convoy. Commenced tracking him.

0954 (I) He is approaching rapidly, has left his convoy and is headed toward us. Turned away from him to let him pass astern. His bearing remains constant so at

0958 (I) Started down to let him pass over. He is a small D.E. and from previous experience do not believe we can hit him, as his draft is less than depth we can safely set on torpedoes. If we fire at him we will probably scare off more valuable targets.

-9- ENCLOSURE (A)

— page 56 —
1010 (I) D.E. has passed clear so returned to periscope depth and continued approach. Escort has apparently left convoy. The are quite far off their track am afraid we won't get in. However they are zigging all over the place so continued towards them in hopes of a lucky zig. They are definitely going over the hill to Southward. Will remain submerged until they go out of sight then surface and make an end around.

1. 1532 (I) Surfaced and proceeded on course to Southward to overtake convoy.
2. 1800 (I) No contact. Just have missed them on a wide zig. Am proceeding to get ahead of them and patrol on their track.

November 30, 1943
0030 (I) Commenced patrolling across convoy track.
0625 (I) Moved patrol station further South.
0850 (I) Commenced patrolling new station.
1216 (I) Commenced running up track.
1415 (I) Sighted smoke bearing 3100(?), distance 25 miles. Commenced tracking. Target on Southerly course were to East of track closing it. Will be unable to close track before dark.

1636 (I) Sighted smoke bearing 1800(?),.
1650 (I) Sighted masts of new target.
1655 (I) Submerged to avoid detection. Continued approach on first target. Will remain submerged until dark.

1719 (I) Sighted target. He is tanker but cannot make out much about him, except he has engines aft and looks large.
1827 (I) Now dark. Cannot see target so surfaced. Radar contact 6,500 yards. Put target on stern and opened out to avoid detection. Will run out to about 12,000 yards and then start end around.

1859 (I) Started end around to westward.
1959 (I) Ahead of target on starboard bow. Have stopped to track him in, will let him come in to two thousand yards and give him the stem tubes. He is zigging on a Southerly course, speed 10 knots. This looks like a new target as the other was only making 7 knots, when previously tracked.

2025 (I) Battle stations.
2043 (I) He has zigged toward so opened track to get sufficient torpedo run.
2049-08 to 2049-41 (I) Fired four stern tubes on 65 track, 2,200 yard torpedo run, 30 divergent spread, 8 and 10 feet depth setting. Gyro angles 1800, 1780, 1920, 1900. Commenced retiring to Southwest. Tube number 9 fired by hand after tube number 10.

2053-32 (I) Torpedo observed to hit. Explosion heard.
2053-35 (I) Another explosion. Possibly another hit.
2055 (I) Large explosion. Sounds like he is blowing up, sheet of flame along deck.

2056 to 2057 (I) Two more explosions. He is still underway making about 10 knots, we are still tracking. Don't understand why we didn't slow him down at least. Have started another end around but it is hard to tell which way to go as he seems to be steering every course on the compass.

-10- ENCLOSURE (A)

— page 57 —
2230 (I) Am to Southward of target. He is zigging between 090° and 270°(T). Will close him and hope to get off a wing shot as he goes by.
: 2325 (I) Coming in for a straight bow shot on a port track when he zigged toward us, angle on the bow nearly zero; so had to reverse course and open track to get sufficient torpedo run.
: 2328 (I) Commenced firing four stern tubes on a 60° port track, torpedo run 1,800 yards, 3° divergent spread, gyro angles 201° to 188°, depth set 8 feet. During firing he zigged 20° away which was set in between the second and third torpedoes. This changed track to 85°.
: 2330 (I) Observed four hits on target, which threw up large sheets of flame. These hits were noticeable on the radar screen and the explosions were felt throughout boat.
: 2330 to 2335 (I) Numerous explosions on target. He is now stopped but has not started to sink. This target is a large tanker and apparently loaded. He is certainly a brute for punishment.

: 0002 (I) Commenced approaching target.
: 0015 (I) Observed small pip on radar, apparently a life boat.
: 0032 (I) Target is not sinking even though we have hit him with five/torpedoes so have decided to give him the last three torpedoes to make sure of the kill.
: 0048 (I) Fired three torpedoes from bow tubes, range 1,500 yards, 2° divergent spread, gyro angles 358 to 002, 75° starboard track, depth set 8, 8° and 10 feet. Retired to South.
: 0049 (I) Two hits.
: 0051 (I) Target disappeared on radar, range 3,500 yards, was observed to sink by all hands on the bridge. to take a prisoner.
: 100 (I) Commenced returning to find life boat/ Manned 20 M.M. guns. Passed 500 yards from position of target, nothing in sight.
: 1110 (I) Came close aboard boat put searchlight on it, and it proved to be a 50 foot boat similar to our M.T.B. but without torpedo tubes. Two machine guns were noted in round open cockpits on each side of streamlined canopy. No one observed aboard. Fired two pans of 20 M.M. and numerous small caliber into it and left it sinking. Target was observed during close approaches and was about 550 feet long, engine aft, 12,000 t. at tanker. This length was measured by binocular formula using radar range. The fact that four torpedoes hit with a total of 9° spread at 1,800 yard torpedo run indicates that the target was at least that long.
: 1140 (I) Put three engines on the line and started for Midway with all torpedoes expended.
: 1430 (I) Passed Pagan Island aboard to starboard. Changed course to gain track for Midway.

-11- ENCLOSURE (A)

— page 58 —
1943
December 1 to December 8, 1943
Proceeding from area to Midway.

December 8, 1943
14 (Y) Sighted numerous planes.
0830 (Y) Sighted Midway, distance 20 miles.
1030 (Y) Moored port side to U.S.S. TAUTOG at Midway.

(C) "MOTHER:"
Pearl to Midway - calm and clear with light breezes
Midway to Aroa - calm and clear.
In Area - exceptionally good weather throughout with only a few rough days and only two days when sights were not obtained.

Area to Base - calm and clear.

Average wind 2
Average sea 2
Average barometer 29.80
Average injection 800
Average temperature 87°

(D) TIDAL INFORMATION:
November 17, 1943
On both morning and evening fixes in Latitude 23-30, Longitude 140-20 E a set of 1.5 knots 1500(T) was noted.

November 19, 1943
Encountered a 1 knot "cestrel" set in Latitude 190 N, 151 E.

Otherwise currents were as indicated on pilot charts.

(E) NAVIGATIONAL AIDS:
No navigational lights were sighted. The only time land was sighted was when proceeding through the island groups.

-12- ENGLISH (A)

— page 61 —
15- ENCLOSURE (A)

Subject: U.S.S. FARGO - Report of Second War Patrol.

(H) ATTACK DATA:

Attack #1.

This attack started out very nicely when target was picked up on radar at a range of 22,000 yards. We were dead ahead of convoy and were proceeding in for the attack when he zigged 50 to the left which put us about 9,000 yards off track. Commenced closing track at high speed thinking we were perfectly safe as far as sighting was concerned. Then at a range of 13,000 yards escort turned toward us; so we submerged. Convoy milled around and escorts came over to investigate. Numerous depth charges were dropped at a distance. The convoy turned away leaving one escort, an Otori class destroyer, to search for us. He searched a position about eight miles from us not coming near. We proceeded to close to firing range and fired three torpedoes at a range of 1,100 yards; 1100 to 1200 track; gyro angles 3530, 3510, 3500; 6 feet depth set; 40 divergent spread. Sound tracked torpedoes out and they looked good. Believe that they passed under him without touching as he only draws 6 feet 9 inches. He sighted us while we were firing; so went to 300 feet and took depth charging. Still do not understand how we were picked up on this one.

Attack #2.

This attack was made on the same convoy as attack #1. After the destroyer had finished working us over we surfaced and commenced search for convoy. Picked them up by radar at 33,000 yards. Made an end around; got on their track; submerged to radar depth to avoid being detected and tracked them in. While tracking from ahead at radar depth, picked up escort at range of 9,350 yards. He is ahead of convoy and slightly on other side. Went to periscope depth to allow him to pass. At this time the visibility which had been clear, closed in with rain squalls around target. Finally picked up target just before reaching the firing bearing. The set up looks good so fired three bow tubes on 300 to 350 track, torpedo run 1,700 yards, gyro angles 3570 to 0060, 40 divergent spread, 10 feet depth setting. Tried to shift to other target but could not pick it up in periscope. Sound picked up high speed across coning in which prevented coming to radar depth. All torpedoes missed.

Attack #3.

Picked up smoke and proceeded to gain position ahead. While gaining position, picked up SNOOK on radar so changed course to pass astern and gain position on other side. Discovered that SNOOK decided on the source of action. Then she discovered us on this side she dropped astern to cross over so we continued to gain position ahead on this side, Radar plot shows that convoy consists of four ships in line with one escort patrolling ahead and another astern. Started in to get leading escort with bow tubes. With range of 6,500 yards he started to ease over to our side, do not believe he has seen us as yet but with range reduced to 3,700 yards he turned directly for us and seems to be speeding up; so gave him the three bow tubes down the throat with a 30 divergent spread; torpedo run 1,800 yards; gyro angles 3530 to 3590; depth set 6 feet.

— page 62 —
1. U.S.S. PARGO - Report of Second "ar Patrol.

---

**Attack #4.**

After attack number 3, 'surfaced when things had cooled down, and picked up target on radar, range 11,000 yards. Started an end around. Gained position ahead and tracked target. He is zigging wildly from 070 to 170°. Started in for stern shot, but with a range of 4,500 yards he zigged away so had to shift to make it a bow shot. 'Fired four bow tubes on 550 port track, range 1,800 yards, 30 divergent spread, gyro angles 001° to 007°, depth set 8 and 10 feet. Observed two hits as we retired. Target started firing at us and continued to fire until she was observed to sink. Target was identified as a freighter similar to Yuki Maru 5,704 tons, page 213 CNI 208 J.

---

**Attack #5.**

Picked up smoke distance 25 miles. Closed to investigate. Target is on southerly course, we are quite far off track so will have to wait for night to get in an attack. 'Mile closing track, picked up another target to South of us. Submerged to avoid detection. Continued in for first target which has been observed to be a large tanker. Surfaced at dark, target picked up on radar at 6,500 yards. Opened out and started an end around. Gained position ahead and proceeded in for a stern shot. He is zigging on a Southerly course, speed 10 knots. Fired four stern tubes on 650 track; torpedo run 2,200 yards; 30 divergent spread, gyro angles 180° to 193°; depth set 8 and 10 feet. Tube #9 fired by hand a few seconds after tube #10. Three minutes after firing explosion heard. This explosion was followed by numerous explosions that were observed on the target. Can not explain this excessive torpedo run unless the actual explosion of the torpedo was not heard and first explosion was something in the ship. This hit did not slow him down, so we started another end around.

---

**Attack #6.**

Attack number 6 was on same target as attack number 5. 'Made end around and started in for another shot. He is zigging wildly between 090°(T) and 270°(T) on a southerly course. Gained position ahead and started in for a bow shot. 'Were just coming on firing bearing when he made one of his radical zigs towards us so we turned to give him the stern tubes. Fired four stern tubes on 600 port track; torpedo run 1,800 yards, 30 divergent spread, gyro angle 201° to 188°, depth set 8 feet. During firing target zigged 200 away which was set in between second and third torpedo. Four hits were observed. Numerous explosions were observed on target and he has stopped, but does not appear to be sinking. He is a large tanker as observed and as proved by four hits with a total of 90 spread, torpedo run 1,800 yards. 'Mile observing target to see if it was sinking, a small pip was picked up on radar which looks like a life boat.

— page 63 —
1/16/43 ATTACK #2 11/19/43 ATTACK #3 11/28/43

| Tubes Fired | #1 | #2 | #3 | #1 | #2 | #3 | #1 | #2 | #3 |
||-----|-----|-----|-----|-----|-----|-----|-----|-----|
| Track Angle | 110° | 115° | 120° | 80° | 82° | 85° | 0° | 0° | 0° |
| Gyro Angle | 353° | 351° | 350° | 357° | 001° | 006° | 353° | 359° | 358° |
| Depth Set | 61° | 61° | 61° | 101° | 101° | 61° | 61° | 61° | 61° |
| Power | H | H | H | H | H | H | H | H | H |
| Hit or Miss | Miss | Miss | Miss | Miss | Miss | Miss | Hit | Miss | Miss |
| Erratic (Yes or No) | No | No | No | No | No | No | No | No | No |
| Mark Torpedo | 14-3A | 14-3A | 14-3A | 14-3A | 14-3A | 14-3A | 14-3A | 14-3A | 14-3A |
| Serial No. | 39269 | 25516 | 25598 | 39702 | 39894 | 25722 | 20343 | 25564 | 40027 |
| Actuation Set | - | - | - | - | - | - | - | - | - |
| Actuation Actual | - | - | - | - | - | - | - | - | - |
| Mark War Head | M16 | M16 | M16 | M16 | M16 | M16 | M16 | M16 | M16 |
| Serial No. | 2057 | 2050 | 6245 | 10932 | 1099 | 10359 | 2754 | 3744 | 11212 |
| Explosive | - | - | - | - | - | - | - | - | - |
| Firing Interval | 12 s | 12 s | 12 s | 12 s | 12 s | 12 s | 12 s | 12 s | 12 s |
| Type Spread | 4°Div | 4°Div | 4°Div | 4°Div | 4°Div | 4°Div | 4°Div | 4°Div | 4°Div |
| Sea Conditions | 1 E | 1 E | 1 E | 1 SE | 1 SE | 1 SE | 2 E | 2 E | 2 E |
| Overall Activity | - | - | - | - | - | - | - | - | - |

REMARKS:
Torpedo No. 40027 was flooded on a previous occasion when put under pressure. The following was accomplished before this firing. Preliminary and final adjustments, dried out and adjusted gyro, installed new igniter, replaced faulty stud in starboard hand hole plate, and resealed exhaust valves. Torpedo was checked under pressure and found to be satisfactory.

-17- ENCLOSURE (A)

— page 65 —
1. U.S.S. PARGO - Report of Second War Patrol.

SUBMARINE OFF ATTACKS

| Attack | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
||----|----|----|----|----|----|----|
| Time  | 2226(2) | 1820(2) | 1302(2) | 1742(2) | 0549(2) | 1328(2) | 1448(2) |
| Date  | 18 Nov. | 19 Nov. | 28 Nov. | 28 Nov. | 30 Nov. | 30 Nov. | 30 Nov. |
| Location | (Lat.) | 22-28N | 19-57N | 18-34N | 18-23N | 14-31N | 14-24N |
|          | 14-22E | 14-59E | 14-09E | 14-18E | 14-44E | 14-40E | 14-40E |
| Number and Type | 3 | 3 | 3 | 4 | 4 | 4 | 3 |
| Torpedoes Fired | Mark | Mark | Mark | Mark | Mark | Mark | Mark |
| On Each Attack | 14-3A | 14-3A | 14-3A | 14-3A | 14-3A | 14-3A | 14-3A |
| Hits | 0 | 0 | 1 | 2 | 1 | 4 | 2 |
| Number Sunk | | | | | | | |
| (Tonnage) | 0 | 0 | Unknown | 5700 | 0 | 0 | 12000 |
| Number Damaged | | | | | | | |
| Or Probably | | | | | | | |
| Sunk (Tonnage) | 0 | 0 | 1700 | 0 | 12000 | 12000 | 0 |
| Type of Target | DD | AD | DD | AD | Tanker | Tanker | Tanker |
| Range | 1170 | 1750 | 2200 | 1800 | 2500 | 2000 | 1500 |
| Type of Attack | | | | | | | |
| Periscope(F) | | | | | | | |
| SURFACE(S) | P | P N R | N R | N R | N R | N R | N R |
| Night(N)Radar(R) | | | | | | | |
| Estimated Draft | | | | | | | |
| of Target | 61.9" | 15' | 9' | 15' | 20' | 20' | 20' |
| Torpedo Depth | | | | | | | |
| Setting | 61 | 10' | 6' | 8'-10' | 8'-10' | 8' | 8'-10' |
| Bow or Stern Shot | Bow | Bow | Bow | Bow | Stern | Stern | Bow |
| Track Angle | 115P | 82P | 0 | 53P | 65P | 70P | 75P |
| Gyro Angle | 353 to 350 | 357 to 356 | 353-359 | 4,6,7 | 178 to 193 | 201 to 188 | 398 to 002 |
| Estimated | | | | | | | |
| Target Speed | 14 | 10 | 10 | 7 | 10 | 10 | 0 |
| Estimated Target | | | | | | | |
| Range Course | 215 | 150 | 176 | 150 | 190 | 190 to 210 | None |
| Firing Interval | 12 Sec. | 12 Sec. | 12 Sec. | 9 Sec. | 11 Sec. | 10 Sec. | 14 Sec. |
| Spread - Amount | | | | | | | |
| and Kind | 4'Div. | 4'Div. | 3'Div. | 3'Div. | 3'Div. | 3'Div. | 2'Div. |
| Was Torpedo Perform- | | | | | | | |
| ive Satisfactory? No | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| or TNT or Torpex | | | | | | | |
| Heads Used? | TX | TX | TX | TX | TX | TX | TX |

REMARKS:
- Attack #1 - Torpedoes believed to have passed under target.
- Attack #4 - The excessive torpedo run cannot be explained. The range should have been accurate as it was a radar range. Torpedo run should have been 69 seconds instead of approximately 3 minutes. Only possible explanation is that actual torpedo explosions were not heard and that explosion we credited to torpedo was an internal explosion. Definite explosions were observed on target so that we know we hit him.

-19- ENCLOSURE (4)

— page 66 —
1. SUBMERSIBLE MEASURES AND EVASION TACTICS:

Anti submarine measures consisted almost entirely of escorts for
surveys. Air coverage was very pronounced on a line between the Bonin and
Marianas during the period spent patrolling; there. Whether this coverage is a
spent waiting for convoy number two was interrupted at frequent intervals by plane
contacts.

All convoys encountered had at least one escort. The single ship,
contact #1 had one escort vessel which was sunk by HARDER. Contact #4 had two
escorts, at least one of which was a small destroyer. His depth charging was
not very accurate after the first run, and we avoided him by running at constant
speed keeping our stern toward him at all times. He served as an excellent
nuisance value and kept us deep for a considerable period. Contact #7 consisted
of four A.K's and two escorts one of which was a large destroyer. In both contact
#4 and 7 they had either excellent lookouts or some form of radar because they
picked us up at what I consider excessive range judging by our experience with
picking up the HARDER and SNOOK at night. Contact #6 consisted of two ships with
one D.E. escort. This escort left convoy and proceeded ahead. Contact #9
consisted of a single tanker and was the only unescorted vessel seen.

Escorts did not ping while cruising in formation. While they were
searching for us they alternated pinging and listening seeming to depend more on
their listening. Fortunately we had a good density layer during both encounters
and were able to avoid without too much trouble. In both cases they gave up
quite early, apparently being satisfied to keep us down until the convoy had
rained some distance.

(K) MAJOR DEFECTS AND DAMAGE:

1. ENGINEERING:

(a) On 0040 2 Nov. - #2 engine shut down because of black exhaust
smoke. Found supercharger hoods on #4 upper unit broken and both upper and lower
upper pins sheared. Renewed broken parts and pulled #4 piston to renew rings.
No rings were broken or missing, but several showed excessive wear. Total engine
hours = 655. Engine back in commission at 2055 November 6.

(b) On 1430 16 Nov. - #1 engine supercharger noisy with excessive
pressure. Found both upper and lower shear pins sheared, four upper rings and
about half of piston babbit band missing on number 4 unit. Renewed piston rings
and shear pins. Total engine hours = 821. Back in commission 0740 November 17.

— page 68 —
1. CSUALITIES:
(a) The transmitter starter box relay stuck before arriving in Midway
   - Route to area: This has given no trouble since adjustment.

2. RECEPTION:
   - A log of reception conditions was kept throughout the patrol. Signal
   - Strength, static, interference, posit and time (GCT) noted. The following is
   - a brief of the data obtained:

(a) Low frequency (16.68 & 56 KCS) Heavy static was continuously
   - present. Between Nov. 1 - 9 and Nov. 23 - 24, reception was very unsatisfactory.
   - The signals were readable Nov. 10 to 22 and constant improvement noted since
   - Nov. 25. The use of the RAK receiver for inter-pack communication limited its
   - use on HK broadcasts.

(b) High Frequency (4525, 9090 & 14390 KCS) With the exception of
   - Nov. 23 to Nov. 26 these frequencies could be used but continual shifting of
   - frequency was required due to weak signals, fading and station interference.
   - During the first part of the patrol, signals were very weak; however, later on
   - there was a noticable increase in signal strength. 14390 KCS fades completely
   - at times. Then used, 8470 KCS, was found satisfactory in spite of station
   - interference.

Serial missed: 33, 88, 100, 37, 45 L, 53, 61, 62, and 63 in that
   order. The received two (2) serials 68 and 69 in the last series.

It is suggested, that in place of the V be being sent between regular
   - Sends, more important messages be repeated.

3. TRANSMISSIONS:
   - Four messages were transmitted by this vessel with the following
   - results:

| Signal | Date  | Time (GMT) | Freq. | Dist. From Pearl | No. of Groups | Original Receipt | Time of Xmsn. |
||-------||-------|||||
| 1      | 11/20 | 1040 to 1120 | 8470  | 3500           | 181           | NTM            | 40 min.     |
| 2      | 12/3  | 1020 to 1050 | 8470  | 3500           | 100           | VHL            | 30 min.     |
| 3      | 12/4  | 1412 to 1450 | 8470  | 2500           | 196           | —              | 38 min.     |
| 4      | 12/5  | 0832 to 0924 | 8470  | 2200           | 198           | NTM            | 52 min.     |
| 5      | 12/7  | 0938 to 1012 | 8470  | 1500           | 86            | VHC/NCMI       | 34 min.     |

*Not receipted for on "HK" SEDS; therefore sent again as Xmsn #4.

-22- ENGLISH (1)

— page 69 —
1. U.S.S. FARGO - Report of Second War Patrol.

The first two transmissions were gotten off with no difficulty. The first to NTM direct and the second via VHL, "Radio Coonawarra". On the third transmission, called NTM on 8470 and was told to go ahead by "HK". The message "s sent, but could get no acknowledgement or receipt. NT on "HK" then told us to go ahead on the 4000 band. Called NTM on 4235 KCS and received: a. A "Q" signal - "Do you hear (Pargo) calling you?" b. "Roger". c. Request for repetition all after BT. Suspecting that the yellow boys were busy, the transitter was secured. No receipt resulted from this transmission. The fourth transmission was a re-broadcast of our third message. Called NTM on 8470 KCS at 0832(GCT) and was told to go ahead immediately. Sent message and on completion was sent "Q" signal by NTM which indicated he was being bothered by Jap interference. Repeated certain groups, sending them twice, as requested. "Was then ordered by NTM to authenticate message, and also repeat heading. Did as requested (for 9th hr. GCT 5th). Received receipt at 0924(GCT). The fifth transmission was completed after sending message for times during a period of 14 hours. Rogers were received each time from VHC, NPG, and NPM. On third transmission encipered authenticated was received, but it was for the previous hour. (M) RADAR: Fourth transmission was authenticated correctly.

Both Radar units operated satisfactorily throughout the patrol.

(1) SD RADAR: - This unit was used periodically in daylight hours going to and from the area and during the first week on station. It was secured for the duration of time in the area because absence of targets suggested enemy detection. Although there is no conclusive proof of detection, it should be noted that more contacts were made after this unit was secured. The only casualty was a failing electrolytic condenser in the CRO voltage supply circuit. Aircraft were detected between eight and ten miles.

(2) SJ RADAR: - This unit was operated from sunset to sunrise and at times of poor visibility. Casualties were a slight leak in the antenna packing gland remedied by taking up on the packing gland) and the usual replacement of failing tubes. Due to the rush of last minute installation of the new high power Trans- 'tter-Receiver, CT-43 AAF-1-(D-150960) further RF tuneup was required enroute station. On installation, care should be exercised in getting a good fit between movable parts and continuity of wave guide sections as this cannot be effectively remedied at sea. The former trouble may cause false echoes at constant range on all bearings while the latter may result in arcing on certain bearings. The greater power of the new transmitter, aside from increasing the unit's range, would be the oper- tor to get more accurate bearings on distant targets and to effectively use the twenty mile sweep on the PTI. The following ranges were obtained:

a. Submarine 15,000 yards
b. Ship(varying angle on bow) 28,000 yards
c. Land(Pagan Isl., 1883 ft.) 60,000 yards

In coordinated or pack operations, it is recommended that IPF gear be installed on all the 10 cm. units. The information obtained from this equipment would identify "friendly" craft and facilitate individual movements during a pack attack.

— page 70 —
1. Sound Conditions: Sound conditions were good except for one day when the subterranean noise was troublesome. Bethythermograph recorded isothermal conditions to about 120 feet followed by a negative gradient of about 1 degree per ten feet. The maximum listening ranges varied between 4000 and 5000 yards with one exceptional range of 14,000 yards on November 29 at noon in Latitude 17-30N, 140-30E. The supersonic receiver (JK) proved superior to the audio range (JT) in range and recovery time after depth charges. The latter required re-magnetization after explosions and local noises at ordinary submerged running was sufficient to obscure the lower level noises of the enemy.

(2) Casualties:
   1. Resoldered shields on both JK and OB cables.
   2. Replaced weak 6D6 tube (Receiver Amplifier)
   3. After depth charging, the port head developed a training noise.
   4. OC training motor generator runs hot.

Item (3) is the same trouble experienced during last patrol. This renders the head useless in evasive tactics when it is most needed. It is recommended that this be instigated thoroughly.

(3) DENSITY LAYERS:
Density layers were encountered in all B.T. cards taken during this patrol. The density layers assisted greatly during the evasive activities. B.T. cards were taken as recorded below:

| Date | G.C.T. | Position | Surface | Depth of Break | Lowest Temp. | Remarks |
|------|||||||
| 12 Nov. | 1350 | 19-36 N | 780     | 190°         | 74° (300)   | Isothermal to 190° break left |
| 13 Nov. | 2013 | 15-18 N | 800     | 220°         | 78° (300)   | Isothermal to 220° slight break left |
| 16 Nov. | 2110 | 23-45 N | 780     | 180°         | 67° (300)   | Isothermal to 180° sharp break left |
| 18 Nov. | 2230 | 22-34 N | 800     | 220°         | 74° (310)   | Isothermal to 220° sharp break left |
| 19 Nov. | 1630 | 20-16 N | 810     | 220°         | 77° (300)   | Isothermal to 220° break left |
| 28 Nov. | 0700 | 18-55 N | 800     | 190°         | 74° (300)   | Isothermal to 190° break left. |

-24- ENGLISH (A)

— page 71 —
U.S.S. PARGO - Report of Second War Patrol.

(P) HEALTH, FOOD AND HABITABILITY:

The health of the officers and men was excellent. Only sick time lost was due in one case to an injured hand and in the second to an infected foot. Both patients were off the sick list after two days.

The food was excellent both in its quality, variety and preparation. As practically all the patrol was spent on the surface the habitability was excellent. During periods of silent running the boat becomes excessively hot and humid when the ventilation and air conditioning units are secured.

(Q) PERSONNEL:

The performance of duty of both officers and men was of the highest order as on the previous patrol. Moral is high and the outfit is always eager to get at the enemy.

This patrol was the first depth charging experience for many of them. They reacted very well.

(R) MILES STEAMED - FUEL USED:

| Mileage | Fuel |
||------|
| 3,067   | 39,275 |
| 5,863   | 65,405 |
| 2,170   | 26,015 |

(S) DURATION:

| Mileage | Fuel |
||------|
| 13 days |      |
| 20 days |      |
| 7 days  |      |
| 0 days  |      |

Time in area is considered as starting 12 November when we arrived at first assigned petrol station even though this was not actually in our assigned area.

(T) FACTORS OF ENDURANCE REMAINING:

| Torpedoes | Fuel | Provisions | Personnel |
||------|||
| 0         | 5,475| 30 days    | 30 days    |

Limiting factor this patrol: Torpedoes.

-25- ENGLISH (A)

— page 73 —
1. FSB-122/A16-3/ Serial 068
: DECLASSIFIED
: FIRST DIVISION TO
: U.S.S. PARGO - Report
: of Second Air Patrol.

From: The Commander submarine Division OND T. UNIT T.O.
To: The Commander in Chief, United States Fleet.
Via: (1) The Commander submarine squadron T. NAVY.
    (2) The Commander submarine Force, Pacific Fleet.
    (3) The Commander in Chief, U.S. Pacific Fleet.

Subject: U.S.S. PARGO - report of second air patrol.

1. The second air patrol of PARGO occupied a period of 39 days (TRAIL to INDIAY) and was spent in open, ocean areas surrounding the HAWAIIAS. Limiting factor of patrol was expenditure of all torpedoes.

2. PARGO made nine contacts with enemy ships (or groups thereof) and prosecuted seven attacks; on five of which one or more hits were obtained, for a total of 11 hits; a most creditable percentage of 45.8.

3. The efforts of the Commanding Officer to destroy the escort which was keeping his sublcerged and preventing his getting up after the convoy on one morning of November 19 were most commendable; as was his promptness in surfacing and overhauling the convoy after the resultant depth charge attack.

4. The Division Commander congratulates the Commanding Officer, Officers and Crew of PARGO for their second outstanding and aggressive patrol and for having inflicted what is believed to be the following damage:

| ACTION | TACTICAL |

— page 74 —
15-12/416-3/FB5-122 SUBMARINE SQUADRON TWELVE
Serial 0121
Care of Fleet Post Office,
San Francisco, California,
17 December 1943.

From: The Commander Submarine Squadron Twelve.
To: The Commander in Chief, United States Fleet.
Via: (1) The Commander Submarine Force, Pacific Fleet.
       (2) The Commander in Chief, U.S. Pacific Fleet.

Subject: U.S.S. PARGO (SS264) - Report of Second War Patrol.

1. The Second War Patrol of the PARGO was conducted in a most aggressive manner. The remarks and summation of damage made in the first endorsement by the Commander Submarine Division One Twenty-Two, who was embarked in the PARGO as the Coordinated Group Commander, are concurred in.

2. The Commander Submarine Squadron Twelve congratulates the Commending Officer, his Officers, and Crew for having waged another successful patrol against the enemy in the Pacific.

J. E. CRIGGS.

— page 75 —
1/2-10/416-3(8)/(16) SUBMARINE FORCE, PACIFIC FLEET
Serial 01920
THIRD ENDORSEMENT to
PARGO Report of
Second War Patrol.
"OMSUBSPAC PATROL REPORT NO. 226
U.S.S. PARGO - SECOND WAR PATROL.
From:
To:
Via:
Subject:
The Commander Submarine Force, Pacific Fleet.
The Commander-in-Chief, United States Fleet.
The Commander-in-Chief, U. S. Pacific Fleet.
U.S.S. PARGO (SS264) - Report of Second War Patrol.
(30 October to 8 December 1943).

1. The PARGO's second war patrol was conducted in the areas around the Marianas Islands. This was one of three submarines making up the second coordinated attack group operating out of Pearl Harbor.
2. The PARGO's patrol was aggressively conducted and results were satisfactory. All attacks were well planned and executed, indicating good control organization. The aggressive and tenacious attacks on the tanker, resulting in the final sinking of that vessel, were particularly outstanding.
3. It is of note that the camouflage used by the PARGO seems to be effective, particularly for night work.
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 PARGO is credited with having inflicted the following damage upon the enemy:

| S U N K | DAMAGED | DAMAGED | DAMAGED |
|||||
| 1 - Fr. gther (YUKI MARU class) | 5,704 tons | 12,000 tons | 15 tons * |
| 1 - Tanker (class unknown) | - | - | - |
| 1 - Landing Craft | - | - | - |
| TOTAL | 17,719 tons | 4,000 tons | 5,700 tons |

*Sunk by Gun Fire.
# 1 credit - damaged by both PARGO and SNOOK.
J. H. BROWN, Jr., Acting.

Distribution and authentication on following page.

— page 76 —
12/10/41-3(8)/(16) SUBMARINE FORCE, PACIFIC FLEET
Serial 01920
DISTRIBUTION:
THIRD ENDORSEMENT to
P.R.C.O. Report of
Second War Patrol.
COMESESPAC PATROL REPORT NO. 326
U.S.S. FARGO - SECOND WAR PATROL.

Subject: U.S.S. FARGO (SS264) - Report of Second War Patrol.
(30 October to 8 December 1943).

DISTRIBUTION:
(Complete Reports)
Cominch (5)
CWO (5)
Cincpac (6)
Lt. Gen. Pac.
Ocean Areas (1)
Ctsorvspace (1)
(Sub Base Plan.Unit) (1)
Ctsrblant (2)
Comsubblant (8)
S/School, NL (2)
Cnsopac (2)
Cnsowespac (1)
Cnsibowespac (2)
CTF 72 (2)
CTF 16 (1)
Comshtspac (20)
SUTD, MI (2)
CorsbspacSubordcom (3)
Corsbstrainpac (2)
All Squadron and Div.
Commanders, Subspace (2)
All Submarines, Subspace (1)

E. L. HYNES, II,
Flag Secretary.

— page 77 —
1. Enclosure (A) covering the Third War Patrol of this vessel, conducted in the area between Latitudes 40 to 70 North and Longitudes 125°-30' to 130° East, during the period 25 March 1944 to 24 May 1944, is forwarded herewith.

I. C. Hobby

DECLASSIFIED-ART. 0445, OPNAVINST 5510.1C

BY OPNAVINST DATE 5/31/42

DECLASSIFIED

— page 78 —
13 Dec. 1943
Arrived Submarine Base, PEARL, from 2nd War Patrol. Lieut. Comdr. B. D. Clagget, U.S.N., detached.

: 15 Dec. 1943
Departed for reengining and navy yard overhaul at NYMI.

: 21 Dec. 1943
Arrived MARE ISLAND. Over fifty alterations completed. Among major items were replacement of H.O.R. engines with 16-278A G.M. engines, installation 4"/50 Cal. deck gun forward to replace 3"/50 Cal. gun, completed installation of SUA radar, installed IFF equipment, installed new Mk. 3, Mod. 5, T.D.C., installed D.R.T. in Control Room, removed Corning Tower door, removed piping in FMF's, completed ballistic protection, completed conversion of #1, MRT into a fuel ballast tank, converted Wardroom Country to accomodate ten of fficers, and installed experimental fluid drive for quick opening of #1, #3 and #5 torpedo tubes.

: 21 Feb. 1944
Navy Yard availability extended to 24 February to complete installation of fluid drive.

: 24 Feb. to 4 Mar. 1944
Conducted post repair trials, test fired torpedo tubes, sound tested, depermed, tested hull at test depth, and tested engines at full power. Conditions satisfactory.

: 4 Mar. 1944
Completed readiness for sea period.

: 5 to 13 Mar.
Underway for PEARL HARBOR, in company with U.S.S. TILEFISH, conducting training exercises enroute.

: 13 to 15 Mar.
Post voyage repairs.

: 16 to 22 Mar.
Training period, fired 6 exercise torpedoes, and conducted three days of operation against convoy with U.S.S. TILEFISH in [coordinated] tactics and training.

: 22 to 24 Mar.
Loading and final repairs. Ready for sea 25 March.

: (B)
NARRATIVE:
25 March 1944

: 1100 (VW)
Departed PEARL HARBOR, T.H., escorted by PC578, for JOHNSTON ISLAND in accordance with ComTaskFor 17 Opord 104-44 (Serial #00472) dated 24 March 1944.

— page 79 —
25 March (Cont'd.)
1710 (W) Made trim dive.
2000 (W) Released escort.
25 to 27 March Enroute JOHNSTON ISLAND at 16 knots.
27 March
1130 (W) Moored JOHNSTON ISLAND. Received 14000 Gals. fuel, 240 Gals.
Lub. oil, and spare radar tubes.
1700 (W) Departed JOHNSTON ISLAND enroute to patrol area at 2 engine
80/90 speed. Changed to Zone plus 11' time.
28 March Enroute area conduct daily dives, fire control, qualification school, and ship control drills.
1200 (X) Position: Lat. 19-05 N Miles - 242
Long. 173-24 W Fuel - 2955
29 March Daily dives, school, and drills.
1000 (X) Changed to Zone plus 12 time.
1200 (Y) Position: Lat. 19-20 N Miles - 342
Long. 179-01 W Fuel - 3940
1630 (Y) Crossed 180th meridian.
2400 (Y) Changed to Zone minus 12 time, dropped 30 March from calendar.
31 March Daily dives, school, and drills.
1200 (M) Position: Lat. 19-36 N Miles - 329
Long. 175-12 E Fuel - 3760
1 April Daily dives, school, and drills.
1200 (M) Position: Lat. 19-48 N Miles - 329
Long. 169-26 E Fuel - 3805
1400 (M) Changed to Zone minus 11 time.
2300 (L) Passed 34 miles north of WAKE ISLAND.

— page 80 —
2 April
Daily dives and drills.
1200 (L) Position: Lat. 19-36 N
Miles - 328
Long. 164-42 E
Fuel - 3780

: 3 April
Daily dives, schools, and drills.
1200 (L) Position: Lat. 19-12 N
Miles - 318
Long. 158-08 E
Fuel - 3700

: 4 April
Daily dives, schools, and drills.
0600 (L) Changed to Zone minus 10 time.
1200 (K) Position: Lat. 18-46 N
Miles - 323
Long. 152-22 E
Fuel - 3760

: 5 April
Daily dives, schools, and drills.
1200 (K) Position: Lat. 18-30 N
Miles - 258
Long. 147-52 E
Fuel - 2160

2200 (K) Passed between PAGAN and AGRIHAN islands.

: 6 April
Daily dives, schools, and drills.
1000 (K) Changed to Zone minus 9 time.
1200 (I) Position: Lat. 17-16 N
Miles - 321
Long. 142-30 E
Fuel - 3840

: 7 April
Daily dives and drills.
1055 (I) C. sighted submarine on surface by high periscope, bearing 2980 T, distance about 8 miles (Ship contact #1). She had grey hull and superstructure, approximate course 0750 T.

1057 (I) Submerged to close and identify submarine which was believed to be U.S. Sub. Sighted her shears twice by periscope, then lost her in rain squall or by her diving. Spent two hours looking for her without success; so surfaced and proceeded toward area.

1200 (I) Position: Lat. 15-20 N
Miles - 296
Long. 137-47 E
Fuel - 3285

1900 (I) Converted #4 FBT into a main ballast tank.

— page 81 —
U.S.S. PARGO (SS264) - Report of Third War Patrol.

8 April
1200 (I) Position: Lat. 13-41 N Miles - 288 Long. 133-08 E Fuel - 3330

9 April
1200 (I) Position: Lat. 09-03 N Miles - 326 Long. 129-35 E Fuel - 3360

1500 (I) Changed to Zone minus 8 time.

1840 (H) Entered area at 129-08 E on course 18° T. Sowed to one engine (80/90) speed.

Note: All times in AREA ARE ONE MINUS 8 HOURS.

10 April
0130 Commenced patrol on PALAU-SARANGANI ISLAND route.

1200 Position: Lat. 05-45 N Miles - 285 Long. 127-39 E Fuel - 2415

2135 Sighted white light on horizon, nothing on radar. Closed to investigate; his course 123° T, speed 10 knots, looked like small patrol or fishing vessel (Ship Contact #2).

2237 Turned away from light and resumed patrol.

11 April
0719 Sighted PALMAS ISLAND bearing 341° T, distance 25 miles.

0816 Aircraft on radar, 8 miles, submerged for one and a half hours, then surfaced to resume surface patrol (Air Contact #1).

1200 Position: Lat. 05-20 N Miles - 194 Long. 127-11 E Fuel - 1375

12 April
0425 Submerged with LANG.N POINT bearing 320° T, distance 17 miles; commenced closing coast for submerged patrol along line from PUSAN POINT to CAPE SAN AGUSTIN.

— page 82 —
12 April (Cont'd.)
: 1200 Position: Lat. 06-24 N Miles - 155 Long. 126-20 E Fuel - 1145
: 1430 CAPE SAN AGUSTIN bearing 269° T, distance 6 miles, took photographs and started opening out from land.
: 1830 Surfaced with CAPE SAN AGUSTIN bearing 25° T, distance 18 miles.
: 13 April
: 0530 Submerged with PUSAN POINT bearing 320° T, distance 10 miles, and commenced closing coast for daylight submerged patrol along line from PUSAN POINT to TUGUEBON POINT four miles off coast.
: 1200 Position: Lat. 06-53 N Miles - 110 Long. 126-29 E Fuel - 780
: 1825 Surfaced with LAMIGAN POINT bearing 295° T, distance 16 miles.
: 1900 Sighted lights of several villages on hills around MAYO BAY.
: 14 April
: 0614 Submerged with PUSAN POINT bearing 265° T, distance 12 miles, and commenced closing coast for submerged patrol along line from PUSAN POINT to TUGUEBON POINT two miles off coast.
: 1040 TUGUEBON POINT abeam, commenced closing LAMIGAN POINT. Experienced 2.5 knot southerly current.
: 1200 Position: Lat. 06-57 N Miles - 119 Long. 126-30 E Fuel - 945
: 1835 Surfaced with LAMIGAN POINT bearing 283° T, distance 14 miles.
: 1840 Sighted lights of villages, same as last night.
: 15 April
: 0458 Submerged with CAPE SAN AGUSTIN bearing 291° T, distance 15 miles, and commenced closing Cape for submerged patrol 5 miles off CAPE SAN AGUSTIN LIGHT.

— page 83 —
15 April (Cont'd.)
0825
Sighted two medium bombers (NELL) bearing 270° T, distance 6 miles, heading southeast from Cape (Air Contact #2).

1200
Position: Lat. 06-16 N
Miles - 173
Long. 126-18 E
Fuel - 235

1330
Took periscope pictures of what appeared to be two radar installations in clearing between light and hostile on CAPE SAN AGUSTIN.

1430
Sighted one medium bomber (NELL) bearing 000° T, distance 3 miles, heading toward Cape (Air Contact #3).

1510
Sighted one medium bomber (NELL) bearing 240° T, distance 5 miles, heading toward DAVIO (Air Contact #4).

1830
Surfaced and commenced night patrol working from east to south around CAPE SAN AGUSTIN.

16 April
0520
Submerged with POINT BANOS bearing 281° T, distance 15-1/2 miles, and commenced closing coast for submerged daylight patrol 5 miles off coast.

0935
Sighted medium bomber (BETTY) bearing 270° T, distance 4 miles, heading toward DAVIO (Air Contact #5).

1200
Position: Lat. 05-46 N
Miles - 118
Long. 125-40 E
Fuel - 835

1825
Surfaced with SANGANI ISLAND bearing 255° T, distance 25 miles.

17 April
0507
Submerged with PAMAS ISLAND bearing 350° T, distance 23 miles.

0803
Observed 4 medium bombers (SALLY) apparently taking off from PAMAS ISLAND (Air Contact #6). Unable to close PAMAS ISLAND by night. Investigate this tomorrow. Lack of information on air fields, radar, and previous ship contacts in this area is keenly felt.

— page 84 —
17 April (Cont'd.)

1200 Position: Lat. 05-17 N Miles - 123 Long. 126-58 E Fuel - 775

1352 Surfaced.

18 April

0455 Submerged with PALMAS ISLAND bearing 230° T, distance 25 miles, and commenced closing island.

1200 3 miles from PALMAS, no air strip, aircraft, or radar in sight.

Position: Lat. 05-32 N Miles - 182 Long. 126-38 E Fuel - 1730

1831 Surfaced with PALMAS ISLAND bearing 022° T, distance 19 miles.

19 April

0453 Submerged with BANOS POINT bearing 274° T, distance 14 miles, for submerged patrol 5 miles off coast.

1200 Position: Lat. 05-53 N Miles - 118 Long. 125-44 E Fuel - 745

1845 Surfaced with BANOS POINT bearing 268° T, distance 18 miles,

1915 SJ Radar contact on 2 aircraft bearing 010° T, distance 5-1/2 miles. O.O.D. and lookouts then saw planes flashing their running lights as they passed CAPE SAN AGUSTIN heading northward. Believe these planes came from PALMAS ISLAND as the port lookout had reported a red flare on the correct bearing for PALMAS about 5 minutes before the contact was definitely established (Air Contact #6).

20 April

0001 Commenced opening out from coast.

0745 Aircraft contact on SD Radar at 16 miles (Air Contact #7).

0749 Aircraft closed to 14 miles; submerged.

— page 85 —
20 April (Cont'd.)
0855
Surfaced; aircraft on SD at 17 miles, going away (Air Contact #8). Remained on surface.

1200
Position: Lat. 06-22 N
    Long. 127-31 E
Miles - 209
Fuel - 1680

1345
Aircraft sighted (NAVIS) bearing 3300 T, distance 8 miles, flying low, heading westward; submerged (Air Contact #9).

1507
Surfaced.

21 April
0400
Commenced patrolling 350 - 170 line at 129-00 E to intercept PALAU-DAVAO traffic.

0842
Sighted aircraft (NAVIS) bearing 1900 T, distance 10 miles, flying low, heading westward; remained on surface (Air Contact #10).

1200
Position: Lat. 06-45 N
    Long. 129-06 E
Miles - 227
Fuel - 1370

1900
All convoy speeds down to 8 knots covered; so commenced closing CAPE SAN AGUSTIN to be in position submerged to intercept convoys with 10 knots or less speed.

22 April
0325
3 pips on SJ Radar at 21,000 yards but again the pips faded and were lost within 2 minutes even though Radar was getting land distinctly at 70,000 yards. Closed the true bearing for 20 minutes without any further indications; decided these pips must have been aircraft as on the night of 19 April (Air Contact #11).

0500
Submerged with CAPE SAN AGUSTIN bearing 2580 T, distance 30 miles, and continued to close the coast.

0740
Sighted medium bomber (BETTY) bearing 1000 T, distance 5 miles, heading west (Air Contact #12).

0930
Sighted another "BETTY" bearing 1030 T, distance 4 miles, heading northwest (Air Contact #13).

— page 86 —
22 April (Cont'd.)

1200 Position: Lat. 06-11 N Miles - 252 Long. 126-16 E Fuel - 3005

1205 Sighted single float plane (PETE) bearing 270° T, distance 7 miles, headed north (Air Contact #14).

1844 Surfaced and commenced patrolling 20 miles due east of CAPE SAN AGUSTIN.

23 April

0445 Submerged with CAPE SAN AGUSTIN bearing 290° T, distance 18 miles, and commenced closing Cape.

0525 Sighted smoke bearing 181° T, distance about 20 miles (Ship Contact #3); came to normal approach course and started closing.

0538 Made out 2 distinct sources of smoke; decided this must be a convoy.

0600 Sound reported 3 escorts echo ranging. Plot indicated the convoy was headed for middle of entrance to DAVAO GULF. Estimated target course 320° T, speed 8, range 32,000 yards, which made it very doubtful whether or not we could close to firing range.

0714 Sighted single float plane (PETE) flying over convoy (Air Contact #15). Convoy consisted of 4 ships in double column of 2 with 3 escorts - one ahead, one behind, one on far flank.

0746 Range on nearest and rear ship 12,000 yards, angle on bow 120° starboard.

0755 Decided the it was impossible to gain firing position submerged and impossible to surface when 15 miles from land with air coverage; so with regret secured from the approach rather than fire a long range slow speed shot hoping for a lucky hit.

1110 Sighted 2 masts bearing 350° T, distance about 8 miles (Ship Contact #4); commenced closing.

1115 Made out small coastal steamer, MFM, about 1000-1500 tons, with 80° port angle on bow.

— page 87 —
23 April (Cont'd.)
1127
Sighted 2 more masts bearing 020° T (Ship Contact #5). Made out standard freighter, MFM, of about 3000-5000 tons with 70° port angle on bow near spot from where we started when we chased convoy. Unable to close this one as the range is about 9 miles and we are bucking a 1.5 knot current. This has been a bitter dose today - after no ships for 2 weeks, then we make 3 separate contacts and are unable to close any of them. This reminds me of a cat watching 3 rat holes.

1200
Position: Lat. 06-13 N Miles - 113
Long. 126-10 E Fuel - 765

1848
Surfaced and commenced night patrol of entrance to DAVAO GULF.

24 April
0449
Submerged with CAPE SAN AGUSTIN bearing 049° T, distance 16 miles, to patrol center of entrance of GULF.

1200
Position: Lat. 06-12 N Miles - 110
Long. 125-55 E Fuel - 715

1837
Surfaced and commenced night patrol at entrance to DAVAO GULF.

25 April
0455
Submerged with CAFE SAN AGUSTIN bearing 077° T, distance 18 miles.

1200
Position: Lat. 06-13 N Miles - 105
Long. 125-47 E Fuel - 720

1845
Surfaced and commenced patrol of west entrance to DAVAO GULF.

26 April
0444
Submerged with GALIAN POINT bearing 310° T, distance 10 miles.

1020
Sighted medium bomber (BETTY) bearing 057° T, distance 3 miles, headed north (Air Contact #16).

1155
Sighted masts bearing 1520 T, distance 9 miles, went to battle stations and started approach.

- 10 -

— page 88 —
1158
Sighted single float plane (PETE) circling over ships (Air contact #17).

: 1202
Identified target as high speed cruiser.

: 1210
Identified target as heavy cruiser with light cruiser escort. This is perfect set-up; we are between the two cruisers, which are in line abeam, their course 350° T, speed 22-25 knots, and small escort which had not yet been sighted is on far flank of target. Had target set up for 110° port track 1400 yards from track when at

: 1212
"PETE" spotted us in with one air bomb. He must have sighted our hull or wake, as the periscope was housed.

: 1212.3
Target had turned toward - 50 starboard angle on bow, range less than 1000 yards; then at

: 1213
The first of eight depth charges laid across our bow by starboard flank escort. The only close one was #3 charge, which changed angle on the boat from 3° dive to 50 rise angle.

: 1233
Lost contact with escort out stayed deep for one hour longer to give "PETE" a better chance to forget us.

: 1345
Periscope depth -- all clear, resumed patrol. Certainly hated to let them get away with this and was sorely tempted to follow them into DAVAO for another crack at them after moonset, but decided to open out and transmit their presence.

: 1200
Position: Lat. 06-17 N Miles - 102
Long. 125-50 E Fuel - 695

: 1855
Surfaced and commenced opening out.

: 2315
Transmitted PARGO Serial ONE.

: 27 April
Commenced surface patrol along PALAU-BALIKIPAPAN route.

: 1200
Position: Lat. 04-28 N Miles - 225
Long. 128-27 E Fuel - 1955

— page 89 —
28 April

0544
Sighted light bomber (SONJA) with heavy black smoke trail from its engine as it started in with zero angle on bow, elevation 2 degrees, range 4 miles (Air Contact #18); submerged.

0645
Surfaced and headed for entrance to DAVAO GULF -- our position on this route had undoubtedly been reported.

1200
Position: Lat. 05-06 N Miles - 210
Long. 128-22 E Fuel - 1180

2355
Radar interference bearing 140° T; since we were within 20 miles of our area boundary, decided that this was probably a friendly submarine.

29 April

0444
Submerged 9 miles east of CALIAN POINT.

0838
Two aircraft depth charges 8 minutes after last periscope sweep (Air Contact #19). The first charge was close; the second charge was a dud, as it was heard when it hit the water and when the exploder functioned, but it did not detonate.

1053 and 1115
Two more air depth charges far away -- apparently near where we had been.

1125
Sighted one float plane (PETE) bearing 053° T, distance 6 miles (Air Contact #20).

1200
Position: Lat. 06-09 N Miles - 205
Long. 126-02 E Fuel - 2635

1709
Three more distant depth charges.

1838
Distant echo ranging on bearing of 0838 contact.

1852
Surfaced with pip on SJ bearing 170° T, distance 4 miles; nothing sighted. Decided this was small craft as visibility was good (Ship Contact #7).

2225
Three sharp pips on SJ radar which faded within 2 minutes. Do not know what caused these pips unless it was aircraft.

— page 90 —
20 April
: 0030
: 0053
: 0235
: 0445
: 0622
: 0919
: 0945
: 1000
: 1200
: 1330
: 1845
: 1 May
: 0744
: 0815

Subject: U.S.S. PARGO (SS264) - Report of Third War Patrol.

One pip on SJ, range 16,300 yards, bearing 278° T (Ship Contact #8); closed range to 8,000 yards and could not see anything, and at

Second pip on SJ, range 18,000 yards, bearing 356° T (Ship Contact #9); commenced closing this one. Could hear pinging or this general bearing.

With range of 7,200, sighted one PC boat or CHIDORI Class torpedo boat. There was no large ship in vicinity; so commenced evading on the surface.

Submerged 23 miles northeast of SARANGANI STRAIT in vicinity of original contact with PC boat. Hope this sound sweep means something is coming through here.

Sighted patrol boat bearing 258° T, range about 10,000 yards. He patrolled parallel to coast about 10 miles off the beach. Avoided. (Ship Contact #10).

Sighted one float seaplane (PETE), bearing 350° T, distance 4 miles, heading south (Air Contact #21).

Sighted same patrol boat again, bearing 255° T.

Sighted medium bomber (BETTY) bearing 255° T, distance 2 miles (Air Contact #22).

Position: Lat. 05-42 N
Long. 125-46 E
Miles - 151
Fuel - 1080

Sighted same patrol boat again bearing 0420 T, distance 15,000 yards. He looked like CHIDORI Class torpedo boat with tripod foremast and mainmast. Avoided.

Surfaced and patrolled PAIMAS-CAPE SAN AGUSTIN area.

Sighted medium bomber (BETTY) bearing 300° T, distance 10 miles, heading southeast (Air Contact #23); submerged.

Sighted "BETTY" through periscope flying around us; apparently he saw wake and swirl of diving, as sea was calm.

— page 91 —
0919
Surfaced.

: 1200
Position: Lat. 05-20 N
Long. 127-35 E
Miles - 181
Fuel - 1545

: 1712
Sighted ship bearing 154° T (Ship contact #11); commenced
closing. Range about 16 miles.

: 1725
Exchanged recognition signals with U.S. Sub., and established patrol line with near at 1820 on courses 320-140.

: 2125
Radar contact "springing 144° I, range 23,000 yards; commenced closing and tracking Ship Contact #12).

: 2145
Decided this was good target and that we would have to attack from down moon side; commenced working around his stern. The submarine noted above (1725) should be close to him.

: 2 May
(Attack #1) Battle stations and commenced attack from port quarter on large tanker, identified as KYOKUTO MARU Class (Page 279, ONI-203J Revised) which had 2 escorts -- one patrolling between port bow and beam and one patrolling starboard beam to quarter. Target speed 15 knots zig-zagging between 145° and 265° T.

: 0146
Fired four torpedoes at tanker, 1° divergent spread, range 3400 yards, track 150° port, small right gyros; then at

: 0147
Fired 2 torpedoes at escort on port beam of target, 1/2° divergent spread, 170° port track, range 2800 yards, gyros less than 10 degrees left, and then turned away at flank speed to bring stern tubes to bear. Range became excessive and no escorts pursued; so held fire and started to open range to 10,000 yards, Parallel him and reload.

: 0151
Five heavy explosions heard and felt throughout the ship at intervals corresponding roughly to firing intervals. At this same time, by their flashes and white water along his water line, two hits were observed by the Quartermaster forward on the tanker, and the flashes were seen by the O.O.D. over the smoke trail of our engines.

— page 92 —
2 May (Cont'd.)

0212 Target was smoking great pillar of black smoke from forward which extended about 200 feet in height, but she was still making 15 knots; so increased speed and started to range for another attack before dawn.

0310 Radar interference from 400 aft of target group. Escorts dropped embarrassing charges about every 15 minutes.

0320 Established another pip on radar, range 7500 yards on bearing of radar interference. Thought this must be the third submarine again.

0326 Battle stations and started attack. Other/continued to close us. When range to her was 5700 decided to turn away and check her; she should not be crowding us.

0338 Bridge could only see black shape on bearing of other sub or new comer. By this time, range had opened to 6800 yards and she was passing astern nicely, when at

0340 Three shots from this new comer -- one over, one short, one over about 50 yards; so at

0341 Submerged and gave up chase on convoy as we were already 35 miles into next area and dawn would break in another hour.

0400 to 0500 Distant depth charges dropped 5 to 10 minutes apart.

0630 Heard 5 distant explosions but could not see anything.

1200 Position: Lat. 03-47 N Miles - 243 Long. 127-59 E Fuel - 2845

1525 Surfaced and started for patrol off PALMAS ISLAND.

In retrospect, it is believed that this third escort must have either chased the DACE away on true bearing 3000 from target group and been coming back to join up when she ran across the PARGO, or else she was a sleeper escort patrolling well astern of the target to pick up trailing submarines. All during the first approach and attack she was not located.

— page 93 —
3 May

0030
Sighted PALMAS bearing 264° T, distance 22 miles.

1200
Position: Lat. 06-40 N Miles - 214
    Long. 128-04 E Fuel - 215

1854
Radar interference bearing 325° T; to be closed this tc he r submarine.

2003
Radar contact bearing 310° T, range 800 yars (Ship contact #13). Closed to investigate.

2010
Sighted small patrol craft; avoided at flank speed.

2159
Radar contact bearing 110° T, range 600 (Ship Contact #14).

2206
Sighted small patrol craft with large mast; avoided.

4 May

0408
Two pips on radar bearing 250° T, ranges 13,950 and 18,600 yards (Ship Contact #15); commenced tracking from ahead.

0456
Submerged and commenced approach on above pips.

0553
Sighted two standard freighters, MFM, about 3000 tons, and commenced attack. Target was on base course 055° T at speed 7 knots.

0633
Sighted single float plane (PETE) flying parallel to the target about 100 feet off the water, range 1500 yards (Air Contact #24); instinctively started deep when he winged up and presented zero angle on the bow. When it was realized that "PETE" had not seen us, started back to periscope depth but targets had passed by the time we were able to see again.

0650
Broke off attack and started opening out for an end-around run and another set-up.

0835
Surfaced and sighted "PETE" again bearing 100° T, distance 10 miles; submerged.

0924
Surfaced and started chase.

1200
Position: Lat. 07-13 N Miles - 197
    Long. 128-49 E Fuel - 2250

— page 94 —
4 May (Cont'd.)

1244 Regained sight contact and maneuvered for a position ahead of targets.

1457 Submerged and started in again. Apparently "PETE" has returned to his base for fuel.

1536 Battle stations and commenced attack.

1610 Fired 3 bow tubes at leading ship and turned to fire 1st next ship but found we were in too close, so swung for next shot.

1611 At this time the bow planesman ran his planes to hard dive, and although the limit switch operates, the planes cease up against the mechanical stops and split the keyway of the shaft coupling just forward of the forward universal joint in the system; so the key became loose with the possibility of complete failure shortly (See Derangement #2).

1611 Two hits and three tremendous explosions on leading ship, which proceeded to blow up.

1615 Leading ship sank, and the second ship is maneuvering all over the ocean. Nevertheless, he has not increased speed and we still have a chance to get him.

1647 Fired 3 bow tubes at second ship.

1690 One explosion and hit on second target. Target took a list to starboard and started making heavy smoke out of his stack, but he did not sink.

1700 Bow planes had to be put on zero and not used until repaired for fear of complete failure and having planes go to hard rise.

1708 Target speed and courses had been erratic since being attacked, but in the hopes of sinking him before the bow planes failed completely, fired 2 stern tubes, which missed ahead of target.

1710 It was estimated that the bow planes would probably fail completely in another 15 minutes and would take 2 hours to repair; so the attack was broken off to be resumed at dusk when planes had been repaired.

— page 95 —
1823
Fast screws and pinging heard in vicinity of the crippled ship; commenced opening out until the bow planes are taut; commission (Ship Contact #16). We had to do much pounding, drilling and grinding to fit coupling to egg shaped shaft and battered key-way. Not conducive to silent running.

2310
Bow planes back in commission.

2320
Surfaced and decided that chances of picking target in with a 50 mile lead were poor and would require more than we had to use; so proceeded toward DAVAO.

5 May
Surface patrol east of PALMAS ISLAND.

1200
Position: Lat. 05-56 N Miles - 193 Long. 127-44 E Fuel - 1445

6 May
Submerged with CAPE SAN AGUSTIN bearing 355° T, distance 16 miles.

0900
Sighted medium bomber (SALLY) bearing 355° T, distance 6 miles, heading east (Air Contact #25).

0915
Sighted medium bomber (BETTY) bearing 320° T, distance 4 miles, heading southeast (Air Contact #26).

0920
Heard supersonic pinging bearing 310° T.

0928
Sighted smoke bearing 305° T and commenced closing. Bearing drawing northward, so came to normal approach course and commenced approach.

0943
Sighted passenger-freighter, about 5000 tons, with 1 goal post mast forward and aft, one stack (Ship Contact #17). Target had about 400 starboard angle on the cow and looked good. His escort was on his starboard quarter.

1000
As target passeu 2 miles south of CAPE SAN AGUSTIN, it turned hard left and started up coast -- leaving us in the lurch 6 miles south of the Cape.

— page 96 —
6 May (Cont'd.)

1016 Secured from battle stations and approach and started one-ing out from coast to surface and chase.

1200 Position: Lat. 06-02 N Miles - 190 Long. 126-14 E Fuel - 800

Opened out to 25 miles and started to surface, when at:

1547 Sighted one medium bomber (BETTY) and remained submerged. Contact #27). In view of existing visibility, air contact time involved, and fuel available, gave up idea of clearing this ship.

1810 Surfaced.

7 May

0514 Submerged with TALAUD ISLAND bearing 160° T, distance 22 miles, for high periscope patrol of DAVAC-HALMAHERA route.

1200 Position: Lat. 04-43 N Miles - 145 Long. 126-45 E Fuel - 830

1810 Surfaced.

8 May

0438 Submerged 16 miles east of CALIAN POINT and commenced closing coast.

1200 Position: Lat. 06-06 N Miles - 133 Long. 125-47 E Fuel - 740

1835 Pip on SJ Radar 015° T, distance 17,000 yards; remained submerged to develop contact. Nothing sighted and pip gone; so at

1850 Surfaced.

1910 Another pip on radar 050° T, 32,000 yards, which again faded.

1912 Sighted lights of an aircraft on bearing of last radar contact. (Air Contact #28). Aircraft signalled, "U U ... ," for next 8 minutes as he crossed from CAFE SAN AGUSTIN to CALIAN POINT and then headed southward to put us in the moon-streak, which was very bright; so at

— page 97 —
1920 Submerged.
: 1942 High speed screws and pinging bearing 240° T (Ship Contact #18); commenced evasive measures.
: 2030 Lost contact with patrol craft.
: 2100 Surfaced and commenced opening out from coast.

9 May
: 0334 Sighted what appeared to be about 8 feet of 2 periscopes and shears broad on port bow, range about 3,000 yards. This contact was down moon in a glassy sea, and it may have been a tree trunk, but the two officers and quartermaster who saw it were convinced; so turned away at flank speed and made ready the stern tubes (Ship Contact #19).

No torpedoes fired at us, so none were returned to him. It is strange that a submarine would be submerged in this part of the ocean at this time of night without having been picked up on radar first. Avoided on the surface as several friendly submarines are in this vicinity.

0505 Sighted patrol craft dead ahead, 175° T, 10,000 yards (Ship Contact #20); submerged.

0515 Patrol craft developed into a sampan with large radio antenna and small after deck house. He did not look like a simple fisherman; avoided.

1200 Position: Lat. 03-36 N Miles - 155 Long. 126-14 E Fuel - 1370

1835 Surfaced and started for Australia.

1930 (H) Departed area at longitude 126-11 E in accord with Opord.

2350 (H) Sighted lights of aircraft bearing 271° T, apparently headed toward us (Air Contact #29); submerged.

10 May
: 0034 (H) Surfaced and resumed course and speed.

— page 98 —
10 May (Cont'd.)
Q455 (H) Submerged.
1200 (H) Position: Lat. 01-18 N Miles - 152
    Long. 126-00 E Fuel - 1445
1840 (H) Surfaced.
11 May
0515 (H) Submerged.
1200 (H) Position: Lat. 01-26 S Miles - 173
    Long. 126-34 E Fuel - 1585
1829 (H) Surfaced.
1930 (H) Sighted lights on horizon bearing 123° T; closed to investi-
    gate.
1945 (H) Established lights as those of a properly marked hospital
    ship with running lights and one large lighted red cross on
    framework aft of bridge (Ship Contact #21).
12 May Decided to spend this day north of MANIPA STRAIT.
0450 (H) Submerged.
1200 (H) Position: Lat. 03-02 S Miles - 133
    Long. 127-11 E Fuel - 855
1830 (H) Surfaced. In view of RASHER message 111745, proceeded toward
    Australia.

13 May
0745 (H) Aircraft sighted bearing 180° T, headed northeast (Air Contact
    #30); submerged.
0830 (H) Surfaced.
1200 (H) Position: Lat. 05-08 S Miles - 245
    Long. 126-32 E Fuel - 2580

— page 99 —
14 May
: 0415 (H) SERMATA ISLAND bearing 270° T, distance 14 miles.
: 1200 (H) Position: Lat. 09-56 S Miles - 355
: 1429 (H) Sighted aircraft bearing 005° T, distance 4 miles; submerged (Air Contact #30).
: 1620 (H) Surfaced.
: 15 May
: 0550 (H) Sighted escort ML809; joined up to enter DARWIN.
: 1025 (H) Moored partside to Boon Jetty. Unloaded 12 torpedoes. Took on board 2 torpedoes without warheads for overhaul, 21,586 Gal. fuel, fresh water, and fresh provisions.
: 1200 (H) Position: DARWIN HARBOR Miles - 260
: 1700 (H) Underway for anchorage.
: 1725 (H) Anchored in DARWIN HARBOR.
: 16 to 17 May Anchored in DARWIN HARBOR.
: 18 May Anchored in DARWIN HARBOR.
: 1225 (H) Underway in accordance with despatch orders.
: 1730 (H) Submerged for trim dive.
: 1755 (H) Surfaced.
: 19 May Enroute FREEMANTLE.
: 0532 (H) Submerged for trim dive.
: 0610 (H) Surfaced.
: 1200 (H) Position: Lat. 12-51 S Miles - 300
: 125-54 E Long. 125-54 E Fuel - 2755

— page 100 —
20 May
Enroute FREEMANTLE.
1200 (H) Position: Lat. 15-00 S
Miles - 304
Fuel - 2660

: 21 May
Enroute FREEMANTLE.
1200 (H) Position: Lat. 17-50 S
Miles - 317
Fuel - 3610

: 22 May
Enroute FREEMANTLE.
0712 (H) Submerged for training dive.
0742 (H) Surfaced.
1200 (H) Position: Lat. 21-50 S
Miles - 315
Fuel - 3940

: 23 May
0945 (H) Submerged for training dive.
1010 (H) Surfaced.
1200 (H) Position: Lat. 27-21 S
Miles - 300
Fuel - 3785

: 24 May
1100 (H) Made rendezvous and proceeded to enter FREEMANTLE HARBOR.

— page 101 —
1. Good weather was experienced throughout this patrol except for the first week in the patrol area, when heavy squalls, overcast sky, and reduced visibility prevailed.

: 2. A strong and constant current was experienced between CAPE SAN AGUSTIN and PALMAS ISLAND setting southwesterly at 1.5 to 2 knots, being strongest next to the CAPE. This current can be relied upon and should be taken into consideration when approaching the CAPE.

: 3. NAVIGATIONAL AIDS:
   - No lighted navigational light were seen.
   - There was a weak, steady white light noted about 100 feet up in the hill behind CALIAN POINT, and the villages along the beaches in the area were lighted.

: 4. SHIP CONTACTS:
   - No.: Time/Date: Position: Types: Initial:Estimated:How Con-: Remarks
   - 1: 1057 Apr 7: Lat 15-25N :SS :Range :Course & :tacted : :Speed :

— page 102 —
00030 Apr30:Lat 05-34N :PC
: 00053 " 30:Same as #8 :PC
: 00062 " 30:Lat 05-39N :PC
: 1712 May 1:Lat 04-50N :US Sub-
: 00063 " 30:Same as #8 :PC
: 00063 " 30:Lat 04-28N :AO & 3
: 00063 " 30:Lat 07-25N :PC
: 00063 " 30:Same as #13 :PC
(Although described differently by lookouts, this may have been same boat as No. 13.)
: 0408 May 4:Lat 06-42N :2 AK
: 00063 " 30:Same as #15 :PC
: 00063 " 30:Lat 06-11N :1 AK
: 00063 " 30:Lat 06-12E:1 Escort:
: 00063 " 30:Lat 06-12N :PC
: 00063 "

— page 103 —
U.S.S. PARGO (SS264) - Report of Third War Patrol.

Subject:  AIRCRAFT CONTACTS:

No. | Time/Date | Position | Description | Heading | Remarks
1 | 0816/11Apr | Lat 05-04N | ? | Toward | SD contact, 8 miles.
2 | 0825/15 | Lat 06-15N | 2 NELLs | 1350 T | Periscope, 6 miles.
3 | 1430/15 | Same as #2 | 1 NELL | 2700 T | Periscope, 3 miles.
4 | 1510/15 | Same as #2 | 1 NELL | 3500 T | Periscope, 5 miles.
5 | 0930/16 | Lat 05-50N | 1 BETTY | 0000 T | Periscope, 4 miles.
6 | 1915/19 | Lat 05-50N | 2 N.W. | S.W. contact, 5 miles.
7 | 0745/20 | Lat 06-19N | ? | Toward | SD contact, 16 miles.
8 | 0855/20 | Lat 06-19N | ? | Away | SD contact, 17 miles.
9 | 1345/20 | Lat 06-26N | 1 MAVIS | 2700 T | Lookout, 8 miles.
10 | 0842/21 | Lat 06-45N | 1 MAVIS | 2700 T | 0.0.D., 10 miles.
11 | 0325/22 | Lat 06-30N | ? | ? | SJ contact, 11 miles.
12 | 0740/22 | Lat 06-22N | 1 BETTY | 2700 T | Periscope, 5 miles.
13 | 0930/22 | Lat 06-20N | 1 BETTY | 3150 T | Periscope, 4 miles.
14 | 1205/22 | Lat 06-11N | 1 PETE | 0000 T | Periscope, 7 miles.
15 | 0714/23 | Lat 06-16N | 1 PETE | Circling convoy | Periscope, 6 miles.
16 | 1020/26 | Lat 06-12N | 1 BETTY | 0000 T | Periscope, 3 miles.
17 | 1158/26 | Same as #16 | 1 PETE | Circling cruiser | 1 air bomb.
18 | 0544/28 | Lat 05-03N | 1 SOMIA | 2700 T | Making low level attack. Sighted by SOMIA air depth charges.
19 | 0838/29 | Lat 06-11N | ? | ? | 2 air depth charges.
20 | 1125/29 | Lat 06-09N | 1 PETE | 0000 T | Sighted after 2 minutes air depth charges.
21 | 0919/30 | Lat 05-35N | 1 PETE | 1800 T | Periscope, 4 miles.

— page 104 —
22 : 1000/30Apr : Same as #21 : 1 EBTY : 0000 T : Periscope, 2 miles.
: 23 : 0744/1 May : Lat 05-45N : 1 EBTY : 1350 T : A.O.O.D., 10 miles.
: 24 : 0633/4 : Lat 06-43N : 1 PETE : Toward : Periscope, 1500 yards.
: 25 : 0900/6 : Lat 06-11N : 1 SALLY : 0900 T : Periscope, 6 miles.
: 26 : 0915/6 : Same as #25 : 1 EBTY : 1350 T : Periscope, 4 miles.
: 27 : 1547/6 : Lat 05-50N : 1 EBTY : 1350 T : Periscope, 6 miles.
: 28 : 1912/8 : Lat 05-36N ? : West & south : SJ and sight contact.
: 29 : 0745/13 : Lat 04-23S : Bomber : 0000 T : Sighted by lookout.
: 30 : 1429/14 : Lat 10-25S : Single Eng. : Toward : Lookout, in sunstreak.
:  : Long 129-02E : Observation : 4 miles.

- 27 -

— page 105 —
U.S.S. PARGO (SS264) - Report of Third War Patrol.

(H) ATTACK DATA:

U.S.S. PARGO (SS264) TORRID ATTACK NO. 1 TATROL NO. THREE

Time 01:46 Date: 2 Nov 1944 Lat. 03-40 N. Long. 126-10 E.

Target Data -- Damage Inflated

Description
Tanker similar to KYOKUTO MARU (ONI-208J Revised, Page 279) with 3 escorts which appeared to be one D3, one CD (yeacht type), and one P5. Contact by radar 23,000, visibility good with quarter moon and thin overcast. Sighted PC as black object at 6800 yards.

Ship(s) Sunk
None

Ship(s) Damaged or
Probably Sunk

Damage Determined by
(1) Five heavy explosions heard and felt. (2) Quarter-master observed two hits by their flame and white water at waterline of tanker forward of amidships. (3) Heavy inverted cone of smoke some 200 feet high coming from forward of the bridge on the tanker. (4) 0,0,D. saw the two flashes of the explosions through smoke trail of own engines.

Target Draft 11 est. Course 235 15 Range 3400 (at firing)

Own Ship Data

Speed 17 Course 255 Depth Surface Angle 0 (at firing)

Fire Control and Torpedo Data

Type Attack:
Night radar on the surface from the dark (port) quarter of the target. One escort 1500 yards on port bow, on 1500 yards on starboard quarter, and one undetected till nearly 2 hours after the attack, at which time it opened fire. TET bearings were used to check anchorings. Binocular formula used to determine target length as 500 feet.

— page 106 —
U.S.S. PARGO (SS264) - Report of Third War Patrol.

:  U.S.S. PARGO (SS264)  TORPEDO ATTACK NO. 2  PATROL NO. THREE

:  Time 0147  to 2 May 1944  Lat. 03-40 N  Long. 128-10 E

:  Target Data -- Damage Inflicted

:  Description Escort of YAEYAMA (CM) type which was on port bow of tanker (See Attack #1).

:  Ship(s) Sunk None

:  Ship(s) Damaged or None Probably Sunk

:  Damage Determined by Torpedoes apparently passed on both sides of target.

:  Target Draft 8  Course 235  Speed 15  Range 2800 (at firing)

:  Own Ship Data

:  Speed 17  Course 255  Depth Surface Angle 0 (at firing)

:  Fire Control and Torpedo Data

:  Type Attack: Two torpedoes fired with about 170 port track at near escort after four torpedoes had been fired at main target. Should have fired one torpedo to hit and one to left of escort in case he tried to turn away from main target.

- 29 -

— page 107 —
1610
Date: 4 May 1944
Lat. 07-04 N
Long. 129-18 E

Target Data: Damage Inflicted

Description:
Two small freighter with no escort. Contact originally by radar at night, 13,950 and 18,600 yards, Ship got by once; second contact was visual.

Ship(s) Sunk:
One small freighter similar to SENKAI MARU (ONI 208J Re-visited, Page 146), 2100 tons. This freighter had large deck guns and platforms forward and aft and may have been escorting the other ship.

Ship(s) Damaged or Probably Sunk:
None

Damage Determined by:
Three large explosions followed by complete disappearance of ship within 4 minutes of explosions, while other ship in company was in sight for another hour as seen through periscope. Visibility excellent.

Target Draft:
3
Course: 055
Speed: 7
Range: 1200 (at firing)

Own Ship Data:
Speed: 3
Course: 280
Depth: 65
Angle 1° drive (at firing)

Fire Control and Torpedo Data:
Periscope attack with intentions of firing 3 torpedoes at this ship and then firing 3 at next ship.

Type Attack:
-

— page 108 —
U.S.S. PARGO (SS264) - Report of Third War Patrol.

:  U.S.S. PARGO (SS264)  TORPEDO ATTACK NO. 4  PATROL NO. THREE

:  Time 1647  Date 4 May 1944  Lat. 07-04 N  Long. 129-18 E

Target Data -- Damage Inflicted

Description: Second ship of two-ship convoy. First ship sunk in attack No. 3.

Ship(s) Sunk: None

Ship(s) Damaged or Probably Sunk: Damage by one hit on small freighter similar to YUKI MARU (ONI 208J Revised, Page 234), 3168 tons.

Damage Determined by (1) One explosion at correct time of torpedo run. (The other two explosions heard were probably end of run of other torpedoes.) (2) Target took 150 starboard list and made heavy smoke from her stack and her speed varied from 0 to 5 knots. It is possible that this ship failed to make port, as she was over 200 miles from the nearest land when hit.

Target Draft: 10  Course 355  Speed 7  Range 2900 (at firing)

Own Ship Data

Speed 3  Course 295  Depth 65  Angle 10°dive (at firing)

Fire Control and Torpedo Data

Type Attack: Daylight, periscope depth. For submerged attacks, this ship uses two plots—one in Corning Tower, one with DRT equipment in Control, and then checks them against the TDC solution. Between the Plot in Control and the Conning Tower we have 2 separate voycal systems—one is press-to-talk in Control, and one is press-to-talk in Corning Tower; this not only gives a standby system but it gives complete flexibility of communications and is very satisfactory.

— page 109 —
U.S.S. PARGO (SS264) - Report of Third War Patrol.

:  U.S.S. PARGO (SS264)  TORPEDO ATTACK NO. 5  PATROL NO. THREE

:  Time 1708  Date 4 May 1944  Lat. 07-04 N  Long. 129-18 E

:  Target Data -- Damage Inflicted

:  Description  Periscope contact with same ship that was hit in Attack #4.

:  Ship(s) Sunk  None

:  Ship(s) Damaged or  None
  Probably Sunk

:  Damage Determined by  Torpedoes missed ahead due to speed and range errors.

:  Target Draft 10  Course 110  Speed 0-5  Range 2000  (at firing)

:  Own Ship Data

:  Speed 3  Course 0  Depth 65  Angle 1° dive  (at firing)

:  Fire Control and Torpedo Data

:  Type Attack  Daylight, periscope depth. The maneuvers of this target
  were very erratic, and although the set-up was not checking very well, two torpedoes were fired to try to sink
  him before our bow planes failed.

- 32 -

— page 110 —
U.S.S. PARGO (SS264) - Report of Third War Patrol.

Subject:  Attacks Nos. 1 and 2

Tubes Fired:  #6  #5  #4  #3  #2  #1

Track Angle:  :148 P  :147 P  :152 P  :147 P  :170 P  :170 P

Gyro Angle:  :7°-40' R  :7° R  :9°-20' R  :10° R  :9°-30' L  :7°-40' L

Depth Set:  :6'  :6'  :6'  :6'  :6'  :6'

Power:  :H  :H  :H  :H  :H  :H

Hit or Miss:  :H  :M  :H  :M  :M  :M

Erratic:  :No  :No  :No  :No  :No  :No

Mark Torpedo:  :Mk 14-3A  :Mk 14-3A  :Mk 23  :Mk 14-3A  :Mk 23  :Mk 23

Serial No.:  :39844  :26256  :52850  :39317  :52836  :41052

Mark Exploder:  :Mk 6-4  :Mk 6-1A  :Mk 6-4  :Mk 6-4  :Mk 6-4  :Mk 6-4

Serial No.:  :11578  :11585  :11149  :11616  :38  :11568

Actuation Set:  :Contact  :Contact  :Contact  :Contact  :Contact  :Contact

Actuation Actual:  :Contact  :  -  :Contact  :  -  :  -

Mark Warhead:  :Mk 16-1  :Mk 16  :Mk 16-1  :Mk 16-1  :Mk 16-1  :Mk 16-1

Serial No.:  :12915  :13042  :13118  :11196  :13125  :12954

Explosive:  :Torpex  :Torpex  :Torpex  :Torpex  :Torpex  :Torpex

Firing Interval:  :12 Sec  :10 Sec  :12 Sec  :18 Sec  :7 Sec

Type Spread:  :Divergent  :Divergent  :Divergent  :Divergent  :Divergent

Sea Conditions:  :Glassy  :Glassy  :Glassy  :Glassy  :Glassy  :Glassy

Overhaul Activity:  :PEARL  :PEARL  :PEARL  :PEARL  :PEARL  :PEARL

Remarks:  :None  :None  :None  :None  :None  :None

— page 111 —
34 -

Subject: U.S.S. PARGO (SS264) - Report of Third War Patrol.

Attacks Nos. 3 and 4

Tubes Fired
: # 6 : # 5 : # 4 : # 3 : # 2 : # 1

Track Angle
: 70 S : 70 S : 70' S : 60 S : 60 S : 60 S

Gyro Angle
: 180-30' L:150-30' L:210 L : 00-40' L : 30-41' R : 40 L

Depth Set
: 6' : 6' : 6' : 6' : 6' : 6'

Power
: H : H : H : H : H : H

Hit or miss
: Miss : Hit : Hit : Miss : Miss : Hit

Erratic
: No : No : No : No : No : No

Mark Torpedo
: 14-3A : 23 : 14-3A : 14-3A : 23 : 23

Serial No.
: 26364 : 41045 : 24094 : 26439 : 41072 : 41048

Mark Exploder
: 6-4 : 6-4 : 6-4 : 6-4 : 6-4 : 6-4

Serial No.
: 11574 : 11634 : 7805 : 1337 : 7763 : 8440

Actuation Set
: Contact : Contact : Contact : Contact : Contact : Contact

Actuation Actual
: - : Contact : Contact : - : - : Contact

Mark Warhead
: 16-1 : 16-1 : 16-1 : 16 : 16 : 16

Serial No.
: 17997 : 3552 : 11913 : 9656 : 1982 : 10390

Explosive
: Torpex : Torpex : Torpex : Torpex : Torpex : Torpex

Firing Interval
: - : 26 Sec : 25 Sec : - : 10 Sec : 17 Sec

Type Spread
: Divergent : Divergent : Divergent : Divergent : Divergent : Divergent

Sea Conditions
: 2 NE : 2NE : 2NE : 2 NE : 2 NE : 2 NE

Overhaul Activity
: PEARL : PEARL : PEARL : PEARL : PEARL : PEARL

Remarks
: None : None : None : None : None : None

— page 112 —
U.S.S. PARGO (SS264) - Report of Third War Patrol.

| Subject: | Attack No. 5 |
|||
| Tubes Fired | # 7 | # 8 |
| Track Angle | 80 P | 80 P |
| Gyro Angle | 26 R | 30 R |
| Depth Set | 6' | 6' |
| Power | H | H |
| Hit or Miss | Miss | Miss |
| Erratic | No | No |
| Mark Torpedo | 14-3A | 14-3A |
| Serial No. | 26637 | 15010 |
| Mark Exploder | 6-4 | 6-4 |
| Serial No. | 530 | 4966 |
| Actuation Set | Contact | Contact |
| Actuation Actual | - | - |
| Mark Warhead | 16-1 | 16-1 |
| Serial No. | 12538 | 13075 |
| Explosive | Torpex | Torpex |
| Firing Interval | 15 Sec | 15 Sec |
| Type Spread | Divergent | Divergent |
| Sea Conditions | 2 NE | 2 NE |
| Overhead Activity | PEARL | PEARL |
| Remarks | None | None |

- 35 -

— page 113 —
1. No indications of mines or mining operations were noted.

(J) 1. ANTISUBMARINE MEASURES AND EVASION TACTICS:

1. Anti-submarine measures in this patrol area consisted mainly of the following:

(a) Special air reconnaissance preceding arrival and departure of vessels from DAVAC.

(b) Air escorts of vessels at sea during daylight.

(c) Routine daylight air sweep which departed DAVAC after sunrise.

(d) Night flying aircraft were sighted by their lights and picked up by SJ Radar on several occasions.

(e) Surface escorts for valuable ships. The ships steamed 1 to 5 miles off the beach with the escort on the seaward side.

(f) Occasional small craft patrol roving along coast from SARANGANI ISLAND to CALIAN POINT when arrivals or departures were expected. No anti-submarine measures were noted northeast of CAPE SAN AGUSTIN.

(g) On the night of 1 May, a "sleeper" escort who was trailing a convoy about 3 to 5 miles east met located us during an approach and attacked with gunfire. This escort held his fire until he realized that we had sighted him and were opening the range. His gunfire was too accurate for comfort at 6800 yards range.

(h) After an attack and when our presence was known, embarrassing charges were dropped at 10 - 15 minute intervals even though they were no where near us.

2. Evasive measures used were the usual ones. We remained on the surface or at periscope depth until it appeared that they had a good contact on us, at which time we went deep and turned away.

Where the currents were known, they were utilized to open the range as fast as possible from the point of contact.

(K) MAJOR DEFECTS AND DAMAGE

5 April (Derangement #1) Upon surfacing from the morning dive, #1 Engine was flooded in #4 and #8 units as a result of loss of starting air pressure just as the engine was started.

— page 114 —
17 April (Derangement #2) A full ground developed in the starboard (QBB) sound head, which it was impossible to clear. It is believed that the projector head itself must be flooded.

4 May (Derangement #3) The forward half of the forward universal coupling on the bow plane tilting shafting from the gear box to the chain belt drive split along the keyway when the bow planes were run up against their mechanical stops. The key worked loose in its keyway, which chewed up the shaft, sheared the taper pip, and beat the shaft until it was out of round, while the bow planes were kept in operation during the attack which was in progress. After 20 minutes of this, it was probable that the planes would fail completely at any minute.

The attack was secured, the planes were rigged in, and work was commenced repairing the planes; it was estimated that the work would take 2 hours and the attack could be resumed after completion of the repairs.

A similar coupling was taken from the hand power shafting and fitted to the shaft after the shaft had been trued up.

This casualty was caused by setting the power limit switches too close to the mechanical stops for the type of selwyn plane indicators installed during the last navy yard overhaul. The present system seems to "coast" after the power is off to the tilting motor.

It is suggested that these limit switches be set to function at 20° plane angle.

After working for 6 hours under adverse conditions in a very cramped spot with many minor annoyances, the repairs were completed, and the ship was surfaced.

After surfacing, the broken coupling was heated, reshaped, and welded, and then ground to fit the hand power shafting, where it was installed.

6 May (Derangement #4) After very limited performance throughout the patrol, the JF sonic listening gear failed completely by having its training gear freeze. Except when running silently, this equipment is too

— page 115 —
U.S.S. PARGO (SS264) - Report of Third War Patrol.

Sensitive to be of great value. It is felt that a JK head installed on this same pedestal would be more satisfactory.

(RADIO:
No matter! can wait. The patrol.
A complete serial file of messages was obtained. Overall, reception could be considered fair. Summary of VIXQ as follows:

| Time (Zebra) | Frequency |
|||
| 9-6           | 4370      |
| 6-12          | Bad       |
| 12-18         | Fair      |
| 18-24         | Good      |
| 9250          | Bad       |
| 12530         | Fair      |
| 12530         | Bad

— page 116 —
U.S.S. PARGO (SS264) - Report of Third War Patrol.

Ranges obtained were as follows:

Land (High peaks)    End of Main Sweep
Hospital ship    28,200 yards
Small patrol boat    15,000 yards
Low flying plane    32,000 yards

SD

The SD Radar was not used very much during this patrol, but while it was used, it was keyed at 50, 40, 60, 70-second intervals with a five-second "ON" period. To prevent wear on the plate voltage variac, a heavy duty snap switch was placed in series with the closed plate voltage switch on the unit and the variac was left at the operating voltage setting.

(N) SOUND GEAR AND SOUND CONDITIONS:

ICA System - On 17 April the starboard sound head grounded out completely and had to be secured. Most likely, the rubber shield has been ruptured and will require removal and repair of the head during the re-fit period. Tube failures in this equipment was also greater on this patrol and most likely due to the increased temperature of the tropics.

Sound conditions were fair when away from DAVAO GULF; however, at the Gulf entrance, subterranean noises were very high.

JP-1 - This unit operated poorly for most of the time on station and was finally secured as a binding on the training mechanism made it impossible to hear any signals while training.

The reasons for this poor operation are local noises of sufficient spectrum and amplitude to mask the weaker, more distant, desired sounds. The greatest noise of fender is the sound motor generator located close above the JP-1.

(O) DENSITY LAYERS:

Density layers within 50 miles of the entrance to DAVAO GULF (MINDANAO) were variable and unpredictable, but generally where a strong surface current was experienced a good density layer was found underneath it.

(P) HEALTH, FOOD, HABITABILITY:

1. 31 March - One case of suspected G.U. from exposure in PEARL. Treatment started and precautions taken to prevent contamination of others.

10 April - Treatment completed, no loss of duty.

— page 117 —
12 April - One torpedoman's mate bruised and cut his right foot when a torpedo in a rack struck and caught his foot between the horizontal rudders of two torpedoes. Placed on sick list for 6 days then returned to duty.

4. 12 April - Torpedoman's mate knocked out and bruised when breech door blew open and hit him in face and chest during a reload when he failed to check that all pressure was out of the tube before opening the door. Placed on sick list for 3 days then returned to duty.

2. The food throughout the patrol was adequate and well prepared. The excellent health of the crew in general, the lack of constipation and colds, and the fine morale on board speak well for the efforts of the Commissary Department.

3. The habitability of the ship was normal.

(Q) PERSONNEL:

1. The performance of duty of both officers and men was highly satisfactory. Their reactions and conduct under fire were in keeping with the highest naval traditions.

2. At this point, it is desired to commend especially the industry, leadership, and perseverance of the First Lieutenant, Ensign L. T. Story, U.S.N., in repairing the bow plane shafting and restoring the fighting efficiency of the ship at a very crucial time.

3. Daily qualification schools were held by the watch officers for their sections enroute to and while in the area except on Sundays, holidays, field days, and action days. Three new officers were received just prior to sailing, and they, as well as the men, profited from these schools.

4. (a) Number of men on board during patrol 70
   (b) Number of men qualified at start of patrol 45
   (c) Number of men qualified at end of patrol 58
   (d) Number of unqualified men making their first patrol 7
   (e) Number of men advanced in rating during patrol 15
   (f) Number of unqualified officers making first patrol 3

(R) MILES STEAMED - FUEL USED:

| Place          | Miles | Fuel Used |
||-------||
| PEARL to JOHNSTON ISLAND | 775   | 13270 Gal. |
| JOHNSTON ISLAND to area | 3776  | 42671 "    |
| In area         | 5104  | 41190 "    |
| Area to DARWIN     | 1318  | 12840 "    |
| DARWIN to FREEMANTLE  | 1915  | 20410 "    |
|                | 12888 | 130381 "   |

— page 118 —
U.S.S. PARGO (SS264) - Report of Third War Patrol.

(S) DURATION:
Days enroute to area: 15
Days in area: 30
Days enroute to base: 15
Days submerged: 24

(T) FACTORS OF ENDURANCE REMAINING:
Torpedoes | Fuel | Provisions | Personnel Factor
10 | 12000 | 10 | 10

(U) REMARKS:
1. Around DAVAO GULF, it is believed that the best points to intercept traffic are 3-5 miles due west of CAPE SAN AGUSTIN and 2-4 miles due northeast of CALIAN POINT.

2. It is interesting to note that in the 13 months this ship has been commissioned she has completed over 400 dives and 800 hours of submerged operation.

— page 119 —
FCS-12/A16-3/(FB5-122) SUBMARINE SQUADRON TWELVE

Serial 060

CONFIDENTIAL
FIRST ENDORSEMENT to
U.S.S. PARGO - Report
of Third War Patrol.

From: The Commander Submarine Squadron TWELVE.
To: The Commander-in-Chief, United States Fleet.
Via: (1) The Commander Submarines SEVENTH FLEET.
       (2) The Commander SEVENTH FLEET.

Subject: U.S.S. PARGO (SS264) - Report of Third War Patrol - Comment on.

1. PARGO's Third Patrol occupied a period of 60 days of which 30 were spent in assigned areas to the Southwest of MINDANAO.

2. There were nine contacts with enemy ships or groups there-of which were worthy of torpedo fire. PARGO succeeded in attaining attack positions against two of these contacts, delivering five torpedo attacks against enemy ships as follows:

   (a) Attacks 1 and 2 - Tanker with two or three escorts was attacked in a night surface radar approach after four hours of tracking. Four torpedoes were fired at the tanker at a range of 3400 yards, 150° port track, followed by a two torpedo salvo at the near escort at a range of 2800 yards, 170° port track. Two hits in tanker were claimed but explosion times recorded in narrative correspond to torpedo runs of 6000 - 7500 yards against a plotted run of about 4650 yards. Explosions could have been end of run explosions but ship personnel feel sure that target was hit. The escort vessel was missed. Tanker continued at 15 knots.

   (b) Attacks 3, 4 and 5 - Daylight priscope attacks, delivered aggressively against two small unescorted freighters with intermittent air screen. On the first attack an excellent position was obtained and two hits from 1200 yards, 70° starboard track, sank a freighter of about 2100 tons. On the second ship on hit was attained in two attacks but a bow plane failure requiring seven hours to repair prevented the pursuit and destruction of this vessel.

3. PARGO's operations near the mouth of DAVAO Gulf were seriously hampered by calm water and air activity. Under such circumstances it is believed that it would be more profitable to resort to close in search at night, withdrawing in the daytime for surface patrol across the traffic routes. If a submerged patrol in close during the daytime is elected, care should be taken to keep the ship near a point which commands the maximum number of routes. On May 6th PARGO was too

— page 120 —
FC5-12/A16-3/(FB5-122)  SUBMARINE SQUADRON TWELVE  W1

Serial 060
CONFIDENTIAL
FIRST ENDORSEMENT to
U.S.S. PARGO - Report
of Third War Patrol.

Subject: U.S.S. PARGO (SS264) - Report of Third War Patrol - Comment on.

far to the southward of Cape SAN AGUSTIN to take care of DAVAO - EMPIRE and DAVAO - PALAU traffic and lost a valuable contact which came out of gulf, rounded Cape SAN AGUSTIN and proceeded towards the Empire.

4. PARGO on April 30 twice avoided contact with what was thought to be CHIDORI Torpedo Boat. Enough of these craft have been sunk to establish their value as worthwhile targets. At the ranges at which they were abandoned their identification could not have been definite and the contacts might well have proved to be destroyers.

5. Material condition is good except that defects are reported in almost all important auxiliaries; i.e., bow plane tilting, steering gear, hydraulic plant, low pressure blowers, high pressure air compressors, auxiliary gyro compass, and sound heads. The bow plane limit switches will be properly set upon completion of repairs. No additional time will be required for refit, including installation of new oil-control rings in main engines.

6. Morale is high and the ship is clean. It is pleasing to note the intensive training and the qualification of 12 men during this patrol.

7. The Commander Submarine Squadron TWELVE congratulates the Commanding Officer, Officers and Crew for having inflicted damage on the enemy.

— page 121 —
1. 1-40/61
Serial: 0560
13 June 1944

C-0-N-F-I-D-B-I-P-I-A-I
SECOND ENDORSEMENT TO:
USS PARGO Conf. Litr.
56264/416-3 Ser.010 dated
24 May, 1944. Report of
Third War Patrol.

From: The Commander Submarines, SEVENTH FLEET.
To: The Commander in Chief, UNITED STATES FLEET.
Via: The Commander SUBMARINE FLEET.

Subject: U.S.S. PARGO (S.264) - Report of Third War Patrol - Comment on.

1. The remarks of Commander Submarine Squadron TWELVE are complete and concurred in.

2. This patrol is designated as "successful" for purpose of award of the Submarine Combat Insignia.

3. The Force Commander joins Commander Submarine Squadron TWELVE in congratulating the Commanding Officer, officers, and Crew of PARGO on this patrol in which the following damage was inflicted upon the enemy:

SUNK

1 - A0 (KYU KUTO MAR CLASS (EC) - - - 10,052 Tons(1st Attack)
1 - A1 (SEMNAI MAR CLASS (EC) - - - 2,101 Tons(3rd Attack)
Total - - - 12,153 Tons

DAMAGED

1 - A1 (YUI MAR CLASS (EC) - - - 3,168 Tons(4th Attack)
Grand Total - - - 15,321 Tons

R. M. CHRISTIE.

— page 122 —
24-71/416-3
Serial: 0560
Date: 13 June 1944
U.S.S. PARGU (SS264) - Report of Third War Patrol - Comment on:

DISTRIBUTION:
Cominch (3) - (Direct)
Vice Opnav (2) - (Direct)
Vice Opnav Op-23c (1)
Com1stFlt (1)
Com2ndFlt (1)
Com3rdFlt (1)
Com7thFlt (2)
ComSubs1stFlt (4)
ComSubs2ndFlt (4)
CTF-71 (4)
CTF-72 (2)
CSS-12 (1)
CSS-16 (1)
DivCons Ron-12 (1)
DivCons Ron-16 (1)
S/N School F.L. Conn. (2)
Each S/N U.A. (1) - NOT TO BE TAKEN TO SEA - BURN

F. F. STRAUB, JR.,
Flag Secretary.

— page 125 —
16 June
Daily dives and drills.
Position: Lat. 20-17 S
Miles - 285
Fuel - 3505
Long. 113-07 E

17 June
Daily dives, drills, and qualification schools.
Position: Lat. 17-57 S
Miles - 280
Fuel - 3285
Long. 116-37 E

18 June
Daily dives, drills, and qualification schools.
Position: Lat. 15-01 S
Miles - 297
Fuel - 4925
Long. 121-12 E

1542
Sighted 2 unidentified aircraft bearing 090° T, distance 12 miles (Air Contact #2).

19 June
Daily dives, drills and qualification schools.
Position: Lat. 12-49 S
Miles - 334
Fuel - 5290
Long. 126-17 E

20 June
0519
Exchanged recognition signals and joined up with H.M.A.S. FREEMANITE to enter DARWIN.

0818
Moored DARWIN Harbor. Received 32,500 gals. fuel, 650 gals. lub., 4250 gals. fresh water, and fresh provisions. Among the drums of lub. oil received were four which had been contaminated by salt water. Fortunately, the ship's personnel noticed the emulsion and discoloration of the oil before it was put into the ship's tanks. Transferred 3 defective lk. 18 torpedoes to U.S.S. GUITARRO and received 3 Mk. 18, Mod. 1, torpedoes and spares from her. Greased all topside and below deck fittings. Touched up bare spots along superstructure with paint.

1730
When getting underway to anchor off jetty, fouled the port screw with the manila stern line which was being hauled onto

— page 126 —
9 02615

Subject: U.S.S. PARGO (SS264) - Report of Fourth War Patrol.

20 June (Cont'd.)

the jetty. Ship did not suspect the screw was fouled until Comdr. E. S. Hutchinson reported that only half the line had been hauled onto the dock.

1830 Sent IFFLAND, H. S., TM2c, over the side with shallow-water diving gear to inspect screws, and he found about 30 turns of line around port shaft forward of screw but well aft of strut bearing. Commenced clearing shaft.

1915 R.A.N. divers with H.M.A.A.S. MALANDA commenced working to clear port shaft.

2210 Port shaft back in commission, no apparent damage to screws, bearings, stern planes or rudder.

2240 Underway for patrol area.

21 June Daily dives, schools, and fire control drill.

0418 Radar contact with U.S. Submarine(Ship Contact #2).

1200 Position: Lat. 10-32 S | Miles - 170 | Long. 129-09 E | Fuel - 2155

2200 Passed SERMATA ISLAND abeam to port, distance 12 miles.

22 June

1200 Position: Lat. 5-27 S | Miles - 371 | Long. 126-43 E | Fuel - 4950

1800 Discovered small transparent larvae with 2 black spots in their bodies in the drinking water taken on board at DARWIN. These "wigglers" were about 1/4" to 3/8" long and 1/32" in diameter; they appeared to be similar to mosquito larvae. Took several specimens, placed gauze strainers over scuttlebutt outlets, and hoped for the best. Decided that we had drunk them already, people in DARWIN lived on them, and that they were more disgusting than dangerous.

— page 127 —
23 June
Daily drills and schools.
O100 Passed between SULA SANAA and BURU Islands.
O502 Submerged with LIFUMATOLA bearing 3440 T, distance 22 miles.
1200 Position: Lat. 1-53 S Miles - 263 Long. 126-38 E Fuel - 3260
1850 Surfaced.
24 June Daily drills and schools.
0450 Radar interference bearing 020° - 030° T.
0455 O.O.D. and Quartermaster sighted black object bearing 020° T as we came out of rain squall; submerged.
0505 Identified object as sampan lying to, distance 3000 yards; avoided at periscope depth (Ship Contact #3).
0530 Sighted masts and upperworks of SC boat bearing 060° T, distance about 7000 yards, but could not make out radar antenna (Ship Contact #4). Visibility varying with light rain squalls. Both of these craft were lying to or searching at less than 3 knots.
1050 Sighted small 2-masted sailboat with lugger rig, distance 8000 yards, bearing 359° T, course 180° T; avoided (Ship Contact #5).
1200 Position: Lat. 1-15 N Miles - 194 Long. 126-32 E Fuel - 2280
1847 Surfaced.
2100 Entered area assigned at longitude 126-32 E, slowed to 1 engine (75/90) speed.
25 June Daily schools and drills.
0500 Submerged for high periscope patrol south southwest of TALAUD Islands.
1200 Position: Lat. 3-16 N Miles - 135 Long. 126-19 E Fuel - 1100
1840 Surfaced.

— page 128 —
25 June (Cont'd.)
2115 Received orders: changing patrol area
    Set course
    northwesterly at 2 engine speed to shift areas.

26 June Daily schools and drills.

0526 Submerged to patrol on shipping routes.

1200 Position: Lat. 4-54 N Miles - 147
    Long. 125-13 E Fuel - 1440

1902 Surfaced.

27 June

0455 Submerged for patrol between PALIMBAN POINT and PORT LEBOC.

1200 Position: Lat. 6-18 N Miles - 140
    Long. 124-01 E Fuel - 800

1225 Sighted seaplane (PETE) bearing 148° T, 7 miles, heading 180° T
    (Air Contact #3).

1330 Sighted masts and stack bearing 130° T, port angle on the bow;
    commenced closing on normal approach course (Ship Contact #6).

1413 Sighted PC boat on port quarter and small freighter with deep
    wells (possible "Q" ship) astern of target. Target was MPM
    freighter of about 4-5000 tons in ballast with composite super-
    structure and flush deck, similar to BANDOENG MARU class (ONI
    208-J, Page 130). Planned to fire 4 torpedoes at target with
    60 port track, then fire 2 at small freighter if setup still
    looked good.

1424 Target showing zero angle on bow, PC boat 1200 yards on port
    beam of target and searching with supersonic pinging, small
    freighter taking position on port quarter of target. Started
    to turn left for stern tube shot. Suspected that we had been
    detected.

1426 Target back on original course; so came right again for bow
    tubes.

— page 129 —
27 June (Cont'd.)

1431:30
Commenced firing 4 bow tubes, 43-52 port tracks, 3° and 4° di-vergent spread, 16-4 right gyros, torpedo run 1400 yards. Checked bearing and angle on the bow before firing the 3rd tor-pedo, and the setup checked correctly. We were forced to fire 10 degrees early because PC boat had a bone in his teeth, zero angle on bow and range about 1500 yards. It is now believed that the stack height was greater than 62 feet which was used and that there was an error in the last fast range taken. The calm water with no white caps made it necessary to take very short periscope exposures. DRT plot disregarded last range and had a torpedo run of 2200 yards, but the shorter range was used on the TDC. This short range was unfortunate because it indi- cated the escort was two minutes' run closer than actual, and -t

1432:30
Commanding Officer looked when it was expected that torpedoes would hit, but nothing had happened except that target had started to swing toward, angle on bow about 35° port, and escort was about 1000 yards away and headed for us; so started deep. Then at

1433:08
Good explosion which sounded definitely like a torpedo hit followed immediately by a long rumbling sound, and then target's screws stopped. It was believed that one torpedo (#4) hit the target, but it was too late to go back to periscope depth as the escort sounded close and had a steady true bearing.

1435:35
The first of three heavy explosions. We were at 200 feet think-ing the escort had over-run his mark when 3 terrific explosions rattled our teeth, made paint fly, bulbs break, a wrench fly off the air manifold, and one sound projector to ground out. These may have been our three misses hitting the rocky coast which was only 5-6000 yards away. Whatever they were, they packed a wallop.

1438:30
Beginning another series of three more explosions which were definitely close depth charges. Baththermograph temperature element broken by these charges.

1442:50
Three more depth charges - not so close.

1453:47
Two more depth charges farther away - and the last for today.

1539
Sound lost contact with escort.

— page 130 —
27 June (Cont'd.)

1615
Periscope depth, all clear. It was believed that the other ship had preceded the escort on up the coast to PORT LEBAC; so decided to open out and head them off at BASILIAN STRAIT tomorrow.

1908
Surfaced and headed for SIBAGO LIGHT.

28 June

0440
Radar interference bearing 120° T but no pip visible.

0502
Submerged off SIBAGO LIGHT.

0510
Sound reported echo ranging bearing 145° T (Ship Contact #7).

0516
Sighted smoke on Sund bearing; commenced closing to investigate.

0522
Identified smoke as coming from 2 freighters blowing tubes before sunrise.

0525
Made out 4 ships now, estimated range as 10,000 yards, angle on the bow zero.

0530
Now have 6 ships -- 4 freighters with one escort ahead and one on port quarter.

0531
Still 10 minutes before sunrise, and there is no wind to ripple the water. The ships are milling around apparently changing formation to form a column for passing SIBAGO LIGHT. The leading escort and 2 leading ships have zero angle on bow, the rear two ships have 75 port angle on bow, and the rear escort is running around like a sheep dog.

0538
Leading escort and first ship heve small angle on bow but all other ships are changing course to their left. Commenced opening out from track to let leading escort pass, then will come in from eastward with sun behind us for 70 starboard track on 3rd ship in column, which looks like the largest ship, firing 3 torpedoes at him and 3 at the last ship in the column which is now forming up in a rough column on course 310° T, speed 8.5 knots.

0555
The leading escort is passing abeam nicely at 2000 yards; so started swinging right to attack position using sound bearings instead of periscope because of absolutely glassy sea.

— page 131 —
0607:25 and 0607:40 fired 2 torpedoes with small right gyro angles, 110 starboard track, torpedo run 2200 yards, and 20 divergent spread at next to the last ship in col.man and swung periscope left to check next target. The Assistant Approach Officer heard the Quartermaster mark the new bearing, checked fire, set in the new bearing, because he thought the Quartermaster had read the first bearing wrong, and at

0607:55 Fired 3rd torpedo of 1st salvo at rear ship in column and again checked fire and checked the setup. Observed target turning away to about 120° angle on bow. This was cranked into the TDC and the setup checked for original target on course of 295° T, speed 8.5 knots. The last 3 ships were now all bunched together, so at

0608:54 Fired 3 more torpedoes at the original target and started to swing for a stern tube setup.

0609:02

0609:14

0610:20 First explosion, and at

0610:40 Commanding Officer observed after end of original target enveloped in flame and smoke with debris flying above mast height. The ship ahead of it had turned toward, the ship aft of it was turning toward, and the rear escort who had been on the far quarter was coming around the stern of the target.

0610:50 Commanding Officer swept all the way around horizon to check on the leading escort and when he came back to the near escort it looked close; so he ordered deep submergence, and at

0610:58 As periscope was ducking, another hit was heard but could not be seen. For the next five minutes the target was heard breaking up with the usual crackling, groaning and rumbling explosions.

0612 The two escorts were starting to mill around overhead which prevented our return to periscope depth for further attacks. One torpedo (#4) hit the original target, and it is believed that the ship sank. It is believed that the right wing torpedo of the spread (#5) hit the ship ahead of the original target, as its position and time of torpedo run check.

- 8 -

— page 132 —
28 June (Cont'd.)
0617:40 Distant explosion.
0622 Another distant explosion.
0623:30 Another distant explosion.
0624 The first of six close depth charges.
0646 The first of eleven explosions of which two sounded close and the rest were unusual in their sound and effect. They sounded distant and lacked the hard metallic "click-bang" of depth charges. Nevertheless, they rocked the boat with 3 separate and distinct pressure waves. For each of these explosions the sound effects were "whoom - whoom - - bo - oom"; wondered if these could be large charges like "block-busters".
0653 Three more close depth charges.
0723 Three distant depth charges.
0913 Lost sound contact with both escorts.
0915 Sighted seaplane (PETE) bearing 156° T, distance 4 miles, heading 270° T (Air Contact #4).
0950 Sighted same PETE bearing 282° T, 6 miles, heading north.
1040 Sighted PETE again bearing 251° T, 6 miles, heading north.
1123 Echo ranging bearing 253° T.
1200 Position: Lat. 6-48 N Miles - 140 Long. 122-56 E Fuel - 770
1203 Sighted AM (Similar to AM 13-24) bearing 297° T, small angle on the bow; put him astern and watched him (Ship Contact #8).
1220 Now showing 10° starboard angle on the bow, range about 6000 yards. Decided we might be able to get a shot at him so went to battle stations.
1233 Target turned south showing 80° port angle on bow and continued on his way. Apparently he never established contact with us and was just making a sweep out on bearing of their last contact.

— page 133 —
28 June (Cont'd.)
with us. Would like to have taken a shot at him to try these Mk. 18's that we have aft, but no chance with him heading south.

1300 Lost sight of contact with AM.

1828 Distant explosions heard through hull.

1908 Surfaced and headed back for PALIMBAN POINT.

29 June Daily schools.

0449 Submerged for patrol between BACUD and PALIMBAN POINTS.

0935 - 1001 Heard five distant explosions.

1200 Position: Lat. 6-01 N Miles - 141
    Long. 124-21 E Fuel - 735

1918 Surfaced.

30 June Daily schools.

0532 Sighted sampan bearing 21.9° T, 8 miles, turned away (Ship Contact #10).

0557 Sighted bomber (BETTY) bearing 225° T, 6 miles, leading 100° T; submerged (Air Contact #5).

0943 Surfaced to continue surface patrol in middle of MORRO GULF.

0945 Sighted same sampan as at 0532, turned away.

1019 Sighted seaplane (PETE) bearing 000° T, 8 miles, heading 270° T; submerged and headed north to see if PETE had a convoy under him (Air Contact #6).

1200 Position: Lat. 6-24 N Miles - 123
    Long. 123-14 E Fuel - 845

1850 Surfaced.

— page 134 —
1 July
Daily schools.
0505 Submerged off SIBAGO LIGHT.
1200 Position: Lat. 6-43 N Miles - 140
Long. 122-31 E Fuel - 915
1442 Sighted seaplane (PETE) bearing 230° T, 10 miles, heading 000° T
(Air Contact #7).
1910 Surfaced.
2 July Daily schools.
0332 Radar interference bearing 225° T.
0450 Radar interference bearing 180° T.
0501 Submerged off SIBAGO LIGHT.
1200 Position: Lat. 6-39 N Miles - 141
Long. 122-28 E Fuel - 920
1911 Surfaced and opened out for daylight surface patrol tomorrow.
3 July Daily schools and drills.
0643 Sighted object on horizon; closed to investigate.
0724 Object was cubicle metal tank about 5 feet on each side; sank it
with 20mm gunfire.
1105 Radar: 51 secs at 000° but sweep faded immediately.
1200 Position: Lat. 4-24 N Miles - 183
Long. 123-18 E Fuel - 1105
1940 Radar sweep at 073° T but again faded.
2130 Radar sweep at 050° T but again faded. These sweeps last about
3 seconds and are either aircraft or a friendly submarine at
extreme radar range whose sweep we pick up occasionally.
2300 Greased all topside and below deck fittings.

— page 135 —
4 July
Daily schools and drills.

: 1200
Position: Lat. 4-54 N
Long. 123-10 E
Miles - 192
Fuel - 990

: 1330
Master gyro rotor bearings started to chatter; placed gyro out of commission.

: 1500
Commenced closing coast at 2 engine speed for patrol off SIBAGO LIGHT tomorrow.

: 2230
Master gyro back in commission. (See derangement #1, Major Defects and Damage.)

: 5 July
Daily schools and drills.

: 0415
Sighted yellowish light on SIBAGO ISLAND.

: 0453
Submerged off SIBAGO LIGHT.

: 0738
Sighted 2 masts as rain squall passed bearing 221° T; commenced closing on normal approach course (Ship Contact #11).

: 0820
Lost masts in rain squall and never did see any part of the superstructure; bearing had changed to 252° T so gave up the chase.

: 1200
Position: Lat. 6-42 N
Long. 122-30 E
Miles - 225
Fuel - 2165

: 1902
Surfaced.

: 6 July
Daily schools and drills.

: 0511
Submerged off SIBAGO LIGHT.

: 1200
Position: Lat. 6-43 N
Long. 122-30 E
Miles - 130
Fuel - 975

: 1917
Surfaced.

: 7 July
Daily schools.

: 0505
Submerged off SIBAGO LIGHT.

— page 136 —
7 July (Cont'd.)
: 1200 Position: Lat. 6-46 N Miles - 127.
: 1925 Sighted yellowish lights on BASILAN ISLAND near MATALAU POINT.
: 8 July
: 0830 Sighted ship bearing 301° T; submerged and commenced closing (Ship Contact #13).
: 0855 Ship identified as sailboat; avoided.
: 1111 Surfaced to resume surface patrol.
: 1200 Position: Lat. 6-40 N Miles - 143.
: 1320 Sighted seaplane (PETE) bearing 095° T, 10 miles; submerged and headed over to intercept any ships under PETE (Air Contact #8).
: 1415 Sighted 2 freighters bearing 156° T, 80° starboard angle on bow; commenced closing on normal approach course at full speed (Ship Contact #14).
: 1524 Secured from approach when angle on bow was 120° starboard, range still about 10,000 yards. Targets were on course 295° T, speed 10 knots. Commenced trailing to surface and chase when they are over the hill. Figured it was impossible to make end around run as they will be at SIBAGO LIGHT by one hour after sunset; our best chance is to trail, then try to overtake them during the one hour after sunset.
: 1650 Surfaced and started chase.
: 1705 PETE showed up again bearing 060° T, 8 miles away; submerged and gave up chase -- cused PETE for the nuisance that he is (Air Contact #9).
: 1845 Surfaced and headed south to transmit information on this contact as one ship was about 6000 tons, the other about 2000 tons.

— page 137 —
9 July
Daily schools and drills.
Submerged off SIBAKO LIGHT.
Position: Lat. 6-42 N
Miles - 191
Fuel - 1740

: 10 July
Daily schools and drills.
Submerged off SIBAKO LIGHT.
Position: Lat. 6-42 N
Miles - 127
Fuel - 745

: 11 July
Sighted sampan bearing 082° T, 4 miles; avoided (Ship Contact #15). Took one picture.
Surface.
Daily schools and drills.
Submerged off SIBAKO LIGHT.
Position: Lat. 6-43 N
Miles - 118
Fuel - 700

: 12 July
Sighted sampan bearing 170° T, 5 miles, avoided (Ship Contact #16).
Surface.
Daily schools and drills.
Submerged off SIBAKO LIGHT.
Position: Lat. 6-44 N
Miles - 147
Fuel - 1015

: 13 July
Sighted seaplane (PETE) bearing 257° T, 8 miles (Air Contact #10).
Position: Lat. 6-44 N
Miles - 147
Fuel - 1015

— page 138 —
12 July (Cont'd.)
1859
Surfaced. Sighted several bright lights along northeast coast BASILAN ISLAND. Closed to investigate. Nothing developed.

13 July
0250
Formation of three bombers crossed our bow heading southwest (Air Contact #11).

0459
Submerged off SIBAGO LIGHT.

1200
Position: Lat. 6-38 N Miles - 119
    Long. 122-29 E Fuel - 710

1900
Surfaced. Opened out from coast for surface patrol across ZAMBOANGA to PALIMBAN POINT ROUTE.

14 July
1200
Position: Lat. 6-21 N Miles - 154
    Long. 123-11 E Fuel - 995

1205
Sighted small boat bearing 060° T; avoided (Ship Contact #17).

15 July
0740
Sighted Army fighter (NATE) bearing 030° T, 4 miles; submerged (Air Contact #12).

0830
SD Radar out of commission when warmed up for surfacing.

1020
SD Radar back in commission.

1022
Surfaced.

1050
Sighted NATE diving on us bearing 287° T, distance 3 miles; submerged (Air Contact #13).

1150
Sighted seaplane (PETE) bearing 010° T, distance 6 miles (Air Contact #14).

1200
Position: Lat. 6-42 N Miles - 190
    Long. 123-12 E Fuel - 895

1247
Sighted PETE again bearing 000° T, 5 miles.

— page 139 —
15 July (Cont'd.)

1330    Sighted PETE again circling our vicinity.

1435    PETE still up there looking for us.

1506    PETE again.

1640    Sighted two-floatseaplane (JAKE) bearing 055° T, 2 miles (Air Contact #15).

1907    Surfaced and headed for JOLO Group; our presence is definitely known here.

16 July

0513    Submerged off TONGQUIL ISLAND.

1200    Position: Lat. 6-03 N
    Long. 122-17 E
    Miles - 124
    Fuel - 1005

1855    Surfaced.

17 July    Daily schools and drills.

0456    Submerged off SIBAO LIGHT.

0556    Sighted sailboat bearing 042° T, 7 miles; avoided (Ship Contact #18). Continued to sight small sailboats during remainder of day.

0645    Sighted two-floatseaplane (JAKE) bearing 060° T, 4 miles (Air Contact #16).

1200    Position: Lat. 6-34 N
    Long. 123-26 E
    Miles - 117
    Fuel - 655

1847    Surfaced and commenced opening out from coast for surface patrol tomorrow.

18 July    Daily schools and drills.

1200    Position: Lat. 4-08 N
    Long. 123-18 E
    Miles - 168
    Fuel - 975

1522    Sank half-swamped metal life-boat with .30 calibre gunfire. Lifeboat was painted dirty grey and had an axe in it, but there were no markings.

— page 140 —
18 July (Cont'd.)

2000
Converted #4 F.B.T. to a main ballast tank; this required over 2 hours due mainly to inaccessibility of 10 Lb. blow blank flanges.

19 July
Daily schools and drills.

1105
Submerged for trim dive.

1140
Surfaced.

1200
Position: Lat. 2-26 N
Miles - 200
Long. 122-00 E
Fuel - 990

20 July
Daily schools and drills.

1200
Position: Lat. 2-29 N
Miles - 220
Long. 122-36 E
Fuel - 1065

21 July
Daily schools and drills.

0404
Two objects on radar 133° T, distance 4150 and 3850; avoided.

0440
Sighted what appeared to be small boats on bearing of radar contact.

0445
Submerged for patrol off west coast SANGI ISLAND.

0520
Verified above contacts - 2 small craft; maybe fishing boats Ship Contact #19).

0745
Sighted numerous sailboats heading out from land -- had several of these in sight throughout the day.

1200
Position: Lat. 3-30 N
Miles - 192
Long. 125-24 E
Fuel - 895

1430
Fishing boats heading back to port.

1900
Surfaced.

22 July
Daily schools and drills.

1000
Sighted swamped wooden lifeboat, no markings.

— page 141 —
22 July (Cont'd.)
1200 Position: Lat. 3-01 N Miles - 171
    Long. 123-07 E Fuel - 1150

23 July
0514 Submerged 17 miles due east of TANJUNG KANDI.
1200 Position: Lat. 1-14 N Miles - 186
    Long. 121-41 E Fuel - 880

1850 Surfaced.

24 July Daily schools and drills.
0500 Sighted smoke in MENADO HARBOR, bearing 120° T (Ship Contact #20).
0507 Submerged in western entrance to MENADO HARBOR and commenced maneuvering to close smoke.
0517 Sighted small trawler near smoke but unable to see anything under heavy black smoke.
0606 Smoke faded out on bearing of pass between mainland and BOENAKEA ISLAND. Believe ship left the harbor heading northeast through the pass.
1200 Position: Lat. 1-29 N Miles - 196
    Long. 124-40 E Fuel - 2035

1854 Surfaced.

25 July Daily schools and drills.
1200 Position: Lat. 3-31 N Miles - 233
    Long. 122-21 E Fuel - 2080

26 July Daily schools and drills.
0504 Submerged in western entrance to BANGKA PASSAGE.
1200 Position: Lat. 2-04 N Miles - 257
    Long. 125-03 E Fuel - 2950

— page 142 —
26 July (Cont'd.)
1250 Sighted sloop-rig sailboat bearing 119° T, 6 miles (Ship Contact #21).
1843 Surfaced.

27 July
0200 Transited BANGKA PASSAGE.
0355 Radar sweep from just north of BANGKA ISLAND.
0447 Submerged 10 miles north of LEMMBEH ISLAND.
0850 Sound reported echo ranging bearing 160° T.
0852 Sighted masts and smoke of two ships bearing 154° T, distance about 8 miles (Ship Contact #22) with seaplane (FETE) (Air Contact #17) flying over them; commenced approach.
0859 Identified targets as 2 CIs, one of the SHIMUSHU class (CM 7-15) and one of the NATSUSHII class (CMc 13-31). They were apparently making a sound sweep as they were both pinging, the decks of the leading one were covered with men, and there were no other ships around.
Decided to fire at the rear ship with stern tubes to use electric instead of steam torpedoes.
0910 In position 6000 yards ahead, 1100 yards from track, swung to parallel course to let targets close range.
0916 Sound reported target had sound contact with us. Range now 4800 yards, angle on bow 450 starboard. Targets had zigged away; so swung left for bow tube shot.
1918 Range still 4800 yards, angle on bow 60° starboard. It was now impossible to get a short range shot and targets were alerted; so started turning away.
0923:30 Depth bomb hitting the water was heard in Conning Tower and Control Room and sound reported it bearing 330° relative. Twenty seconds later it detonated and we received the worst shaking up we've had to date. Started deep at full speed.

— page 143 —
27 July (Cont'd.)

0924:45 Second aerial depth bomb very close. Personnel in Conning Tower and Control had the strange sensation of landing back on the deck but no recollection of leaving it. Fortunately the damage to the ship was comparatively minor, although plentiful. Damage is listed under "Major Defects and Damage".

0930:27 The first of 6 depth charges, also close.

0933:32 The first of 6 more depth charges; close.

0937:17 The first of 3 more depth charges; close.

0939:25 The first of 4 more depth charges; close.

0946:20 The first of 9 more depth charges; farther away.

0951 The first of 5 more depth charges; not close.

1023 The first of 11 more depth charges -- these sounded like the rack trip failed, and a whole rack full went off together.

1056 First of 4 more charges -- these were heavy charges or set very deep. Score for the day now stands at 2 air bombs, 48 depth charges -

1200 Position: Lat. 1-39 N Miles - 126 Long. 125-24 E Fuel - 790

1225 Returned to periscope depth; all clear. Resumed periscope patrol.

1852 Surfaced and patrolled northeast of LEMBEH ISLAND.

28 July

0515 Submerged 25 miles east of BANGKA ISLAND.

1200 Position: Lat. 1-44 N Miles - 134 Long. 125-24 E Fuel - 855

1845 Surfaced and started to work south of LEMBEH ISLAND. Radar interference again bearing at north end of BANGKA ISLAND (295° T).

2130 Pip on radar 1590 T, 9500 yards; turned away and commenced tracking. O.O.D. and Quartermaster sighted black object but could not identify it (Ship Combat #23).

— page 144 —
28 July (Cont'd.)
: 2314
: With target still tracking on 270° T at 7 knots, which headed him for LEMBEH ISLAND, and appearance of a PG boat about the size of the motor launches at DARWIN, decided he was not a torpedo target; so turned away and headed south.

: 29 July
: 0100
: Noted keying effect on radar interference to westward. Cut SJ to receiving and heard repeated character signal, "da da da dit".

: 0130
: Received correct radar challenge from J.S. Submarine... and replied. Upon completion of above challenge and reply, radar code, "dit da da da da dit," was sent repeatedly from the approximate bearing of the radar until we submerged.

: 0200
: Changed course to westward to close coast and be in position to investigate the radar source visually at daybreak.

: 0447
: Submerged 17 miles from coast south of LEMBEH ISLAND.

: 1200
: Position: Lat. 1-06 N Long. 125-06 E
: Miles - 151 Fuel - 1400

: 1903
: Surfaced. Upon surfacing, we had the same radar interference we had upon diving -- still sending, "dit da da da dit", and believe it is an aircraft homing radar directed toward KAU BAY, HAWAII, since we've had it only in this sector.

: 30 July
: Daily schools and drills.

: 0455
: Submerged east of BANGKA STRAIT.

: 0705 to 0945
: Seaplane (PELL) patrolling coast between BANGKA STRAIT and LEMBEH ISLAND, but no shipping sighted (Air Contact #18).

: 1050
: Sighted 2 sampans in column bearing 276° T, range 5000 yards (Ship Contact #24).

: 1200
: Position: Lat. 1-43 S Long. 125-15 E
: Miles - 144 Fuel - 730

: 1435
: Sighted patrol boat (PG) bearing 287° T, distance 7000 yards; avoided at periscope depth. His course 145° T, speed 11 knots (Ship Contact #25).

— page 145 —
30 July (Cont'd.)
1802 Surfaced.
2000 Departed area for FREEMAN, W.A., in accordance with OpOrd and despatches.
31 July Daily schools.
1014 Sighted 2 bombers (unidentified) bearing 250° T, 10 miles; submerged (Air Contact #19).
1200 Position: Lat. 1-46 S Miles - 243 Long. 126-44 E Fuel - 3125
1846 Surfaced. Decided to spend another day submerged off LIFUMATOLA ISLAND in hopes of traffic between northwest Celebes and AMBON.
2202 Sighted small sampan bearing 210° T, range 5000 yards; avoided (Ship Contact #26).
1 August Daily schools.
0515 Submerged southeast of LIFUMATOLA ISLAND.
1200 Position: Lat. 1-55 S Miles - 166 Long. 126-38 E Fuel - 1180
1834 Surfaced.
2150 Sighted small object like the one last night; closed to investigate. At 3000 yards it looked about the size of a small sampan or large lifeboat (Ship Contact #27).
2 August Daily schools.
0537 Sighted small fishing boat with prominent bowsprit; avoided (Ship Contact #28).
1055 Sighted ship bearing 113° T, 8 miles; commenced tracking (Ship Contact #29).
1200 Position: Lat. 5-16 S Miles - 252 Long. 125-30 E Fuel - 3840

— page 146 —
1230 Exchanged recognition signals with friendly submarine.
: 3 August Daily schools.
: 0216 Passed narrowest point through OMAI STRAIT.
: 0522 Submerged.
: 1200 Position: Lat. 8-53 S Miles - 271
: 1831 Surfaced.
: 2046 Sighted small boat bearing 205° T, distance 3 miles; avoided
: (Ship Contact #30).

: 4 August
: 1200 Position: Lat. 13-07 S Miles - 310
: 5 August
: 1200 Position: Lat. 17-34 S Miles - 356
: 6 August
: 1003 Submerged for trim dive.
: 1021 Surfaced.
: 1200 Position: Lat. 21-17 S Miles - 348
: 7 August
: 1200 Position: Lat. 12-09 S Miles - 292
: 1215 Exchanged recognition signals with friendly sub. (Ship Contact #31).

— page 147 —
7 August (Cont'd.)

1239: Submerged recognition signals with friendly sub(Ship Contact, 32).

1605: Submerged for training dive.

1650: Submerged.

& August

0710: Submerged for training dive.

0737: Submerged.

1121: Submerged.

1140: Submerged.

1200: Position: Lat. 29-53 S  Long. 113-35 E  Miles - 210  Fuel - 3640

9 August

0700: Rendezvous FREE AT TIE. Proceeded to enter port.

— page 148 —
25

Subject: U.S.S. PARGO (SS264) - Report of Fourth War Patrol.

(C) WEATHER.

The weather was generally fair. In MORRO GULF on the majority of nights the sky was overcast, but the days were clear with extreme visibility and small logs and oil drums looked large on the flat sea.

(D) TIDAL INFORMATION.

The tides were found to agree with the information in the hydrographic publications.

(E) NAVIGATIONAL AIDS.

No lighted navigational lights were seen, but along the coast of SANGI and BASILAN ISLANDS many small lights were seen.

— page 150 —
1st Lt. & : Initial: Course: How Con-:
No.: Time & Date: Long. : Type : Range : Speed:tacted : Remarks
: : 1-30N : Patrol :

— page 151 —
U.S.S. PARGO (SS264) - Report of Fourth War Patrol.

| CONTACT NUMBER | 1    | 2    | 3    | 4    | 5    | 6    |
||------|------|------|------|------|------|
| Date         | 14 June | 18 June | 27 June | 28 June | 30 June | 30 June |
| Time (Zone)  | 1304   | 1542   | 1225   | 0915   | 0557   | 1019   |
| Position:  | Lat.   | 29-32 S | 14-33 S | 6-19 N  | 6-51 N  | 6-14 N  | 6-22 N  |
|            | E.Long. | 113-08 | 122-10 | 124-01 | 122-46 | 123-12 | 123-14 |
| Speed       | 14     | 15     | 13     | 3      | 9      | 9      |
| Course      | 356     | 080     | 045     | 270     | 140     | 000     |
| Trim       | Surf.   | Surf.   | Per.    | Per.    | Surf.   | Surf.   |
| Minutes Since Last | SD Radar Search | 4 | 2 | - | - | 9 | 5 |
| Number      | 1      | 2      | 1      | 1      | 1      | 1      |
| Type        | PBY     | Bombers | PETE   | PETE   | BETTY  | PETE   |
| Probable Mission | Pat. | Unk.   | Esc.   | Pat.   | Unk.   | Pat.   |
| How Contacted | Sight | Sight | Sight | Sight | Sight | Sight |
| Initial Range | 12     | 14     | 7      | 4      | 6      | 8      |
| Elevation Angle | 20 | 20 | 30 | 40 | 30 | 40 |
| Range & Relative Bearing of Plane When It Detected | Friendly ND | ND | ND | ND | ND | ND |
| S/M          | Signals | Signals | Signals | Signals | Signals | Signals |
| Sea: (State) | 3 | 2 | 0 | 0 | 1 | 1 |
| (Direct. (Rel) | 5 | 45 | 0 | 0 | 0 | 140 |
| Visibility (Miles) | 30 | 25 | 20 | 20 | 15 | 60 |
| Clouds: (Height in Ft. | 10000 | 14000 | 8000 | 8000 | 3000 | 8000 |
| Percent Overcast | 10 | 5 | 2 | 20 | 80 | 5 |
| (Bearing (Rel) | - | - | - | - | - | - |
| Moon: (Angle Percent Illum. | - | - | - | - | - | - |

Type of S/M camouflage on this patrol. Light Grey.

— page 152 —
7 8 9 10 11 12
Date: 1 July 8 July 8 July 12 July 13 July 15 July
Time (Zone) (-8) 1442 1320 1705 1015 0250 0740
Position: Lat. 6-43 N 6-25 N 6-31 N 6-38 N 6-40 N 6-44 N
E, Long. 122-32 123-11 122-59 122-23 122-49 123-19
Speed 13 9 14 3 9 9
Course 220 180 290 020 270 000
Trim Per. Surf. Surf. Per. Surf. Surf.
Minutes Since Last 4 2 6
SD Radar Search 1 1 1 1 1 1
Number 1 1 1 1 1 1
Type PETE PETE PETE PETE BETTY NATE
Probable Mission Pat. Esc. Esc. Pat. Unk. Unk. Unk.
How Contacted Sight Sight Sight Sight Sight Sight
Initial Range 10 10 8 8 4 2
Elevation Angle 20 20 20 30 40 300
Range & Relative 2ND 2ND 2ND 2ND 2ND 2ND
Bearing of Plane :

— page 153 —
13 14 15 16 17 18
Date : 15 July : 15 July : 15 July : 16 July : 27 July : 30 July
Time (Zone) (-8) : 1050 : 1150 : 1640 : 0645 : 0852 : 0705
Position: Lat. : 6-46 N : 6-43 N : 6-40 N : 6-36 N : 1-35 N : 1-36 N
E,Long. : 123-10 : 123-11 : 123-02 : 122-27 : 125-20 : 125-09
Speed : 10 : 3 : 3 : 3 : 3 : 3
Course : 225 : 220 : 250 : 240 : 100 : 260
Trim : Surf. : Per. : Per. : Per. : Per. : Per.
Minutes Since Last:
SD Radar Search : 2 : - : - : - : - : -
Number : 1 : 1 : 1 : 1 : 1 : 1
Type : NATE : PETE : JAKE : JAKE : PETE : PETE
Probable Mission : H : H : H : Pat. : Esc. : Pat.
How Contacted : Sight : Sight : Sight : Sight : Sight : Sight
Initial Range : 3 : 6 : 2 : 4 : 8 : 12
Elevation Angle : 50 : 40 : 50 : 40 : 30 : 30
Range & Relative : 3, 120 : ND : ND : ND : Apparent:ND
Bearing of Plane : Out of : : : : : ly cir-
When It Detected : haze : : : : : cled us
S/M : & then
(State (Beau- : bombed
Seat: : 1 : 1 : 1 : 2 : 2
(Direction(Rel)220 : 270 : 210 : 200 : 025 : 260
Visibility (Miles): Var. : 20 : 20 : 15 : 25 : 40
Height in :
Clouds: (Percent : 0-4000 : 5000 : 6000 : 3000 : 8000 : 6000
Overcast : 30 : 20 : 15 : 70 : 5 : 15
(Bearing(Rel) : - : - : - : - : - :
Moon: (Angle : - : - : - : - : - :
Percent : - : - : - : - : - :
Illum. : - : - : - : - : - :

Type of S/M camouflage on this patrol Light Grey.

— page 154 —
19
Date: 31 July
S: Time (Zone) (-8)
Position: Lat. 1-40 S
B: Long. 126-36
A: Speed 12
R: Course 160
N: Trim Surf.
E: Minutes Since Last SD Radar Search 3
Number: 2
Type: Bombers
Probable Mission: Unk.
How Contacted: SD
Initial Range: 6 miles
Elevation Angle: 2°
Range & Relative Bearing of Plane: ND
When It Detected S/M: -
Sea: (State (Beau- 2
fort
(Direction (Rel): 045
Visibility (Miles): 15
Height in Ft. 8000
Clouds: (Percent (Overcast 40
(Bearing(Rel) -
Moon: (Angle (Percent (Illum. -

- 31 -

— page 155 —
U.S.S. PARGO (SS264) - Report of Fourth War Patrol.

(**) ATTACK DATA:
U.S.S. PARGO (SS264) TORPEDO ATTACK NO. 1 PATROL NO. 4
Time 1431 (H) Date 27 June 1944 Lat. 6-21 N Long. 124-02 E

Target Data -- Damage Inflicted
Description Medium: AIR similar to EANLOSING MARU class (ONI-20E-J, Page 130) with composite bridge, flush deck, MTM, of 4-5000 tons in ballast. Another small AK of about 2000 tons and PC boat.

Ship(s) Sunk None.

Ship(s) Damaged or Probably Sunk
One - Escort forced us deep before results could be observed by periscope.

Damage Determined by
One hit heard and timed for 2400 yard torpedo run. Following the initial explosion a long rumbling explosion was heard and the target screws stopped, although screws of escort and other AK were easily heard.

Target Draft 7.5 Course 340° Speed 7 Range 1400 (at firing)
(Actual range believed nearer to 2400 yards)

Own Ship Data
Speed 3 Course 101° Depth 65 Angle 1/2 give (at firing)

Fire Control and Torpedo Data
Type Attack Daylight periscope in calm water 5-6000 yards off coast. Target was following coast line and about 11 miles off of it. PC boat escort was on seaward beam and small AK was astern or on port quarter of target. Calm water required fast periscope exposures, and it is believed the last range (which did not check) was in error. DRT plot disregarded last range and had a plotted torpedo run of 2200 yards.

— page 157 —
4. CONFIDENTIAL

Subject: U.S.S. FARGO (SS264) - Report of Fourth War Patrol.

Time: 0608 (H) Date 28 June 1944 Lat. 6-50 N Long. 122-41 E

Target Data -- Damage Inflicted

Description: 4 AK's of 4-600 tons with 1 AK and 1 PC boat as escorts forming column at sunrise off SIEGO LIGHT. First target was about 6500 ton AK similar to TAIEUN MARU (ONI 208-J, Page 206) and second target was about 5000 ton AK similar to BOSTON MARU (ONI 208-J, Page 211).

Ship(s) Sunk: ONE - 6581 tons (Similar to TAIEUN MARU).

Note: One or other sunk but which one is not known.

Ship(s) Damaged or Probably-Sunk: ONE - 5425 tons (Similar to BOSTON MARU).

Damage Determined by: One hit on first target was heard and then seen by Commanding Officer. Debris, smoke, and flame were thrown above mast height of ship and ship was listed over to starboard. Ship was heard breaking up. Another torpedo was heard to hit but was not seen. Only evidence that it hit another ship is the fact that three ships were bunched together and a plot of the situation indicates that the 2nd torpedo of the 2nd salvo (#5 torpedo) which was fired with a 2' right spread hit the ship ahead of the target.

1st Salvo - 310°
Target Draft 9 ft. Course 2nd Salvo - 295° Speed 8.5 Range 2400 (at firing).

Own Ship Data

Speed 3 Course 230° Depth 65 Angle 1° dive (at firing).

Fire Control and Torpedo Data

Type Attack: Daylight periscope in absolutely glassy sea. Periscope exposures very short and ranges not accurate. TDC checked by plot in Conning Tower and DRT Plot in Control Room for target course 295° T, speed 8½ knots. Two 3-torpedo salvoes were fired, but by mistake the 3rd torpedo of first salvo was fired at the ship astern of the target. Torpedoes were set at 5 feet depth because sea was flat and targets were in ballast; all torpedoes ran normally.

— page 159 —
1. U.S.S. PARGO (SS264) - Report of Fourth War Patrol.

Subject: MINES.

No mines or mining operations were seen.

(J) ANTI-SUBMARINE MEASURES AND EVASION TACTICS.

Anti-submarine measures were about as expected. In two cases out of 3 depth chargings during this patrol the anti-submarine vessels were assisted by aircraft. On 27 July, the two anti-submarine vessels turned away upon making sound contact and sent the aircraft over to investigate our suspected presence; then, after the aircraft had bombed us, the two vessels closed in for their depth charge attack.

For evasion, we went to deep submergence after our position was known and the anti-submarine vessels were close, and while running silent we maneuvered to keep the attacking vessel aft of the beam.

(K) MAJOR DEFECTS AND DAMAGE.

1. Derangement #1. 1330, 4 July 1944, secured master gyro because of excessive vibration and noise in sensitive element. Found that the north rotor bearing was badly worn and the bearing on the spring end coated with carbon. The vacuum gage leaked and the oil wicks were chewed. All parts were wet and appeared to be lubricated. During last refit it was requested that this bearing be renewed, but the tender personnel assured us that this was unnecessary. There was a deep groove worn in the bearing receptacle on the case side.

After renewing both bearings, oil wicks, and gaskets, gyro was started at 2230 on no vacuum run and operated satisfactorily. Failure of the master gyro during an attack would seriously handicap the fighting efficiency of the ship.

2. List of damage sustained from aerial depth bombs on 27 July 1944:

(a) Flooded #2 sanitary tank.
(b) Broke antenna insulator and flooded trunk.
(c) Broke C.T. clock and manometer on port side.
(d) Broke fuse for NYMI TDC lighting.
(e) Loosened tubes in SD and SJ Radars but none broken.
(f) Broke indicator lights and threw electric interlock out of adjustment on bow plane tilting circuit so planes could not be rigged in until repaired.
(g) Tripped overspeed trips on both turbo-blowers.
(h) Jammed outboard exhaust valve on #4 engine so it would not open until worked loose by hand.

— page 160 —
1. S.S. PARGO (SS264) - Report of Fourth War Patrol.

Subject: RADIO.

RECEPTION was satisfactory throughout the patrol; VIXO and VHM could be copied at all times although from 1200 - 1300 GMT and 1900 - 2000 GMT reception of VIXO was poor.

The new frequency, 16150 KCS, was very satisfactory during daylight and received at strength 5, but at night this frequency faded completely.

No voice transmissions of nearby submarines were heard, but the ISABEL was copied on 3 occasions while in the area and several transmissions were heard which seemed to be our surface and air units using aircraft code.

Distant submarine voice transmissions faded. It is believed that this fading was increased by a gap MCW circuit near the same frequency. It is recommended that the Aircraft Code be used with CW (key) transmissions on 2880 KCS when submarines are widely separated and still trying to coordinate their movements.

RADAR.

Radar operation was normal and no unusual casualties were experienced. The use of radar identification was used on two occasions and proved most helpful.

Interference was received on the SJ on the night of 27 July on the bearing of the north end of BANGKA Island; again on the night of 28 July SJ interference came from the same bearing. Later on during the same night, SJ interference continued from the bearing of the land behind LEMBEH Island.

SOUND GEAR AND CONDITIONS.

No unusual sound conditions were noted. The starboard sound head shaft is still noisy when trained at high speed.

— page 161 —
U.S.S. PARGO (SS264) - Report of Fourth War Patrol.

---

### (O) DENSITY LAYERS.

The bathythermograph was broken by the first depth charging the first day in the patrol area; so no accurate observations were made.

---

### (P) HEALTH, FOOD, AND HABITABILITY.

The health of the crew was excellent except for half a dozen cases of Phthirius Pubis (Crabs) which caused some consternation but no serious injuries.

The food was well prepared and plentiful although the variety of fresh provisions was extremely limited, but the quick-frozen foods helped here and were greatly appreciated.

The habitability of the ship was normal. The forward battery compartment is still the warmest compartment, and it is hoped that an air conditioning booster unit can be installed in the CPO quarters during the next refit period.

---

### (Q) PERSONNEL.

The officers and crew worked continually during the patrol trying to teach the new comers how to live on board a submarine and become qualified submariners. Each watch officer held qualification school for his section for one hour each day, and it is felt that all hands profited.

The performance of duty during contact with the enemy left nothing to be desired except more contacts with the enemy. Morale definitely ebbs when you patrol enemy waters for several weeks with nothing but aircraft contacts.

| Officer | Rank | Duty | Time |
||------|------|------|
| Number of men on board during patrol | 70 | 40 |
| Number of men qualified at start of patrol | 40 | 52 |
| Number of men qualified at end of patrol | 16 | 14 |
| Number of unqualified men making their first patrol | 14 | 1 |
| Number of men advanced in rating during patrol | 1 | 1 |
| Number of unqualified officers making first patrol | 1 | 1 |

---

### (R) MILES STEAMED - FUEL USED.

| Item | Quantity | Cost |
|------||------|
| FREEMANTLE to first area: | 2913 miles, 40,355 gals. fuel | 5772 miles, 39,880 gals. fuel |
| In areas: | 2646 miles, 33,350 gals. fuel | 11331 miles, 113,585 gals. fuel |
| Area to FREEMANTLE: | 11331 miles, 113,585 gals. fuel | 11331 miles, 113,585 gals. fuel |

— page 162 —
1. U.S.S. PARGO (SS264) - Report of Fourth War Patrol.

(S) DURATION:
Days enroute to area - 11
Days in area - 36
Days enroute to base - 10
Days submerged - 33

(T) FACTORS OF DURANCE RATING:
Torpedoes Fuel Provisions Personnel Factor
14 25,000 15 15 days
Limiting factor this patrol - Operation Orders.

(U) REMARKS:
1. Report on Mark 18 Torpedoes.

The first weekly routine aboard ship revealed the following:

(a) A 3/4" open end wrench was found in the vicinity of main motor of torpedo in No. 7 tube.
(b) Two torpedoes had zero grounds resulting from broken cells and one a 22 volt moisture ground, which was eliminated but quickly returned as a zero ground.
(c) Battery holding clamps were found loose in several torpedoes.
(d) A hydrogen burner lead was found broken in one of the relaced torpedoes.
(e) Some of the ventilation piping was not properly topped to fit the adapter.
(f) Some of the spare stop valve followers would not fit.

It is believed that the transportation and handling of the torpedoes caused most of the above casualties, but there is evidence of some carelessness.

It is worthy of note that no serious troubles were encountered with the Mark 18-1 torpedoes in spite of the fact that the torpedoes were not overhauled between patrols. The following routing schedule was employed.

1st day - 9 tube and 10 reload.
2nd day - 10 tube and 9 reload.
3rd day - 7 tube and 8 tube.
4th day - 7 reload and 8 reload.
Skip three days and repeat.

— page 164 —
15-12-AL6-3/FB5-122 SUBMARINE SQUADRON TWELVE
Serial 0158
Confidential
FIRST ENDORSEMENT to
U.S.S. PARGO (SS264) -
Report of Fourth War Patrol.

From: The Commander Submarine Squadron TWELVE.
To: The Commander in Chief, United States Fleet.
Via: (1) The Commander Submarines, SEVENTH FLEET.
    (2) The Commander SEVENTH FLEET.

Subject: U.S.S. PARGO (SS264) - Report of Fourth War Patrol.

1. The fourth war patrol of PARGO was conducted in the
   Celebes Sea. It covered a period of fifty-seven days of which thirty-
   six were spent in the area.

2. Only two contacts were made that could be developed into
   torpedo attacks. The first of these was made on a medium AK escorted
   by a PC boat. It is believed that one hit was obtained but counter
   attack by the escort prevented observation. The resulting damage by
   depth charges was extensive but not serious.

3. The second attack was made on a convoy of four freighters
   with two escorts. One hit on a medium AK was observed and the ship was
   seen to break up. A second hit was heard which probably damaged another
   freighter. As in the first attack further observation was precluded by
   depth charge attacks by the escort.

4. The PARGO will be refitted by the U.S.S. GRIFFIN and Sub-
   marine Division 122-1 relief crew during the normal period. A complete
   overhaul of Mark 7 cargo compass will be accomplished. The material
   condition of the PARGO is very good.

5. The state of health and morale is excellent despite the
   disappointment of lack of contacts in such a long patrol. Concentrations
   are extended to the Commanding Officer, Officers, and Crew for h.v.ing
   inflicted damage on the enemy.

Signature: [Handwritten signature]

Adm.: [Handwritten signature]

— page 166 —
654-A
9 03615
11 SEP 1944

A16-3(F-3/roj)
Serial: 017-A

C-O-N-F-I-D-E-N-T-I-A-L
THIRD ENDORSEMENT to:
USS PARGO Conf. ltr.
Report of Fourth War
Patrol.

From: Commander Seventh Fleet.
To: Commander-in-Chief, United States Fleet.

Subject: U.S.S. PARGO (SS 264) - Report of Fourth War Patrol.

1. Forwarded.

2. Commander Seventh Fleet congratulates the
Commanding Officer, Officers, and Men of the U.S.S. PARGO
upon the completion of a successful War Patrol.

H.W.GRAF
Chief of staff

Copy to:
ComSubs7thFl1t
ComSubRon-12
CO U.S.S. PARGO

— page 167 —
SS264/A16-3
Serial 017
CONCLASSIFIED

From:  The Commanding Officer.
To:  The Commander in Chief, United States Fleet.
Via:  Official Channels.

Subject:  U.S.S. PARGO (SS264) - Report of Fifth War Patrol.

Enclosures:  (A) Subject report.
    (B) Track chart (ComTaskGroup 7.1 only).

1. Enclosure (A), covering the Fifth War Patrol of this vessel, conducted off the northwest coast of BORNEO between BRUNEI BAY and PALAWAN PASSAGE, during the period 3 September to 7 October 1944, is forwarded herewith.

D. B. BELL,
DECLASSIFIED ART. 0445, OPNAVINST 5510.16
BY 00 09 03C DATE 7/7/44
DECLASSIFIED

— page 168 —
9 Aug. 1944

PROLOGUE:
Arrived FRENANTE and commenced undergoing normal refit by U.S.S. GRIFFIN. The following was accomplished in addition to the normal refit routine: Ship was dry docked in marine railway and bottom painted, squeal in starboard shaft was removed by enlarging bearing clearances, renewed armature in No. 2 lighting motor generator, and renewed main 'waterbury Speed Gear on steering system in after torpedo room. Ship's signature was taken, but ship was not flashed or wiped.

Commander I. C. Eddy, USN, was relieved by Lieutenant Commander D. B. Bell, USN, as Commanding Officer.

An extended training period was allotted to this vessel because of change in commanding officers. A total of seven days and five nights were spent in training, during which three exercise torpedoes and all guns were fired. Final repairs and loading were accomplished in two days. Readiness for sea date was set at 3 September 1944.

NARRATIVE:

Officers and Chief Petty Officers on Board

| Officer | Name | Rank | Date |
||------|------|------|
| Lt. Comdr. | David B. Bell, USN | 7 | 6 |
| Lieut. Edward D. Hogg, USN | 2 | 2 |
| Lieut. James W. Herring, USN | 0 | 0 |
| Lieut. John Ladd, D-V(G), USNR | 5 | 5 |
| Lt. (jg) Robert A. Derrickson, E-V(RS), USNR | 1 | 1 |
| Lt. (jg) George E. McWhite, E-V(S), USNR | 3 | 3 |
| Ensign Robert C. Rome, E-V(G), USNR | 2 | 2 |
| Ensign George A. Keller, III, USN | 2 | 2 |
| Ensign Creighton W. Cook, USN | 7 | 7 |

HARRIS, Charles Edward P., 321 15 31, CTM(T), USN | 10 |
PAWELCZAK, John (n), 337 06 34, CTM(AA), USN | 5 |
REID, Paul Keyton, 287 31 67, CMOMM(AA)(T), USN | 4 |
SMITH, Averell Dickson, 223 22 81, CMOMM(AA), USNR | 10 |
TRAVIS, Joseph Howard, 258 08 94, CEM(T), USN | 3 |
WEIGHILL, Walter Irvin, 212 30 96, CCS(AA)(T), USNR | 3 |

ALL TIMES ARE ZONE -8 TIME (HOW)

3 Sept. 1944

1315 Underway enroute EXMOUTH GULF in accordance with ComTaskGroup 71.1 Operation Order 123-44 dated 2 September 1944 in company with H.M.A.S. DUBBO as escort.

ENCLOSURE (A)

— page 169 —
1500 to 2100 Conducting torpedo approaches and training of sound men with H.M.A.S. DUBBO.
2100 Released escort and proceeded towards EXMOUTH GULF at two-engine (75/90) engine.
4 Sept. Conducted training dives, fire control, and ship control drills.
1200 Position: Lat. 29-14 S Miles - 200 Long. 113-12 E Fuel - 2710
1700 Exchanged recognition signals with allied submarine (Ship Contact #1).
5 Sept. Conducted training dives, ship control drills, and emergency drills.
1200 Position: Lat. 23-53 S Miles - 327 Long. 112-31 E Fuel - 3430
6 Sept. Moored port side to fuel barge in EXMOUTH GULF. Received 8,670 gals. fuel. Touched up paint work and greased all topside fittings. Crew enjoyed six hours of relaxation and sunshine, caught a mess of small fish, and ship departed in excellent spirit.
1200 Position: Moored EXMOUTH GULF Miles - 244 Fuel - 2175
1555 Departed EXMOUTH enroute to patrol area.
1730 Went to stations for battle surface and fired 14 rounds of H.C. 4" ammunition that had been in ready lockers for two runs at wreck off entrance to EXMOUTH GULF. All hands who witnessed the effects of these hits had much greater respect for our deck gun.
7 Sept. Conducted training dives, fire control drill, ship control drills, and qualification school.
0440 Radar picked up a ship bearing 0450 T, range 5600 yards. Thought this to be expected friendly submarines so changed course to avoid. Last target on radar at 11,000 yards (Ship Contact #2).
1200 Position: Lat. 19-11 S Miles - 265 Long. 113-10 E Fuel - 2980

— page 170 —
U.S.S. PARGO (SS264) - Report of Fifth War Patrol.

8 Sept. Conducted training dives, qualification school, and ship control drills.

1200 Position: Lat. 14-22 S
Long. 114-50 E
Miles - 303
Fuel - 2750

9 Sept. Conducted training dives and qualification school.

1200 Position: Lat. 10-15 S
Long. 115-52 E
Miles - 249
Fuel - 2030

1340 Sighted unidentified aircraft bearing 130° T, range 7 miles, on course 220° T. Dove and awaited darkness before approaching within visual range of LOMBOK STRAIT (Air Contact #1).

1749 Surfaced and headed for LOMBOK STRAIT.

2145 Commenced transit of LOMBOK STRAIT at four-engine speed.

2323 Radar picked up small ship bearing 161° T, range 10,000. Target was well abaft our beam and range opened rapidly. Tracked target on course 280° T, speed 12 knots (Ship Contact #3).

2400 Completed transit of LOMBOK and set course to pass 10 miles east of SEKALA ISLAND.

10 Sept. Conducted qualification school.

0057 Sighted sailboat bearing 007° T, range 4000 yards, and maneuvered to avoid (Ship Contact #4).

0242 Pip on radar bearing 005° T, range 3600 yards. Maneuvered to avoid ship, which was seen to be another sailboat (Ship Contact #5).

0548 Submerged for daylight patrol off SEKALA ISLAND.

1200 Position: Lat. 6-55 S
Long. 116-23 E
Miles - 246
Fuel - 3040

1830 Surfaced.

2040 Radar contact 19,000 yards, bearing 206° T; swung toward and commenced tracking (Ship Contact #6).

2108 One escort picked up on starboard bow of target, target on base course 080° T, speed 7.5 knots, running 1 or 2 miles north of reefs north of KANGEAN ISLANDS in 8 to 20 fathoms of water. Decided to work around ahead of target and attack from port beam.

ENCLOSURE (A)

— page 171 —
10 Sept. (Cont'd.)

2225 Escort patrolling back and forth about 1000 yards in front of target, on port bow now; went to battle stations and turned in for attack from port quarter. Target zig zagging between 0600 - 1200 on five minute legs with occasional erratic "dog-leg" thrown in. From position 400 from base course, 8000 yards ahead, kept bow toward escort and passed 2400 yards under his stern.

2249 With torpedo run of 1200 yards, small gyros, and angle on bow 1200 port, commenced firing 3 torpedoes, depth set 4 feet, 20 di-vergent spread. As last torpedo left tube and we started swing- ing right, target zigged left showing angle on bow 800 port. All torpedoes missed astern. Very irritating after such a beautiful set-up.

2303 Target apparently not alerted except for one small light flashing around his bridge; so decided to use the same set-up again. Moon- rise still two hours away, night clear and dark with hazy horizon.

2325 In position ahead again; so turned in to attack using same tactics as before.

2342:40 With torpedo run 1500 yards, small gyros, and target showing 900 port angle on bow, having just settled on this course two minutes earlier, fired 4 torpedoes.

2342:59 earlier, fired 4 torpedoes.

2343:08

2343:42 Saw and heard first nice hit just forward of bridge - followed by another muffled hit just forward of his screws which stopped him dead in the water.

2346:35 With violent explosion and greenish flash target blew up and sank, disappearing from sight and radar screen. Our range to him at this time was 2200 yards and range to escort 4400 yards. This was a very satisfying spectacle after shooting a total of 7 torpedoes at him.

The escort, which was a PC boat, now speeded up to 15 knots and headed off on course 010° T while we retired at full speed to the northwest; no counter-attack developed.

11 Sept. Conducted qualification school.

0605 Submerged in view of expected patrols after activities of last night.

-4- ENCLOSURE (A)

— page 172 —
11 Sept. (Cont'd.)
0635 Sighted sailboat bearing 216° T, range 10,000 yards, on an easterly course (Ship Contact #7).
1200 Position: Lat. 5-56 S Miles - 314.5 Long. 114-42 E Fuel - 2630
1637 Sighted sailboat bearing 203° T, range 10,000 yards, on course 090° T (Ship Contact #8).
1846 Surfaced.
1907 Picked up GREAT MASALEMBO on radar bearing 039° T, range 32 miles.
1920 Sighted sailboat bearing 290° T, range 4000 yards. Maneuvered to avoid (Ship Contact #9).
12 Sept. Conducted qualification school.
1200 Position: Lat. 4-20 S Miles - 310 Long. 110-00 E Fuel - 3815
1608 Sighted masts bearing 332° T, range 20,000 yards, and commenced closing to identify target (Ship Contact #10).
1646 Identified target as two-masted schooner on course 090° T and dived to await darkness before approaching within visual range of land in vicinity of KARIMATA STRAIT.
1850 Surfaced.
1925 Picked up DISCOVERY EAST BANK ROCK bearing 345° T and set course to pass ten miles east of CATHOLINE REEF.
2132 Passed two small sailboats close aboard (Ship Contact #11).
13 Sept. Conducted fire control drills and qualification school.
0150 Radar picked up SEROETOE ISLAND bearing 344° T, range 40 miles.
0610 Exchanged recognition signals with friendly submarine via radar (Ship Contact #12).
0616 Submerged for daylight patrol.
1200 Position: Lat. 1-20 S Miles - 260 Long. 108-02 E Fuel - 3265

— page 173 —
13 Sept. (Cont'd.)
1845    Surfaced and set course for PENGIKI ISLAND.
2230    Crossed Equator.
2241    Radar picked up PENGIKI ISLAND bearing 044° T, range 27 miles.

15 Sept. Conducted qualification school.
0100    Completed special mission and continued enroute to patrol area.
0613    Submerged for trim dive.
0652    Surfaced.
1200    Position: Lat. 5-13 N
    Long. 111-07 E
    Miles - 195
    Fuel - 2370
1204    Slowed to one-engine speed and commenced patrolling along MANILA to SINGAPORE route.
1540    Sighted unidentified object and submerged.
1725    Identified object as large tree stump and surfaced.

16 Sept. Conducted qualification school.
1200    Position: Lat. 6-35 N
    Long. 113-12 E
    Miles - 235
    Fuel - 1260
1505    Sighted ROYAL CHARLOTTE REEF bearing 019° T, range 10 miles.
1508    Submerged for trim dive.

— page 174 —
16 Sept. (Cont'd.)

: 1548 Surfaced.

: 1700 Entered assigned patrol area.

: 2000 Converted No. 4 Fuel Ballast Tank to ballast tank.

: 17 Sept. Patrolling PALAWAN PASSAGE vicinity of BALABAC ISLAND. Conducted fire control training and qualification school.

: 0555 Submerged for trim dive.

: 0635 Surfaced.

: 1200 Position: Lat. 7-55 N Miles - 237 Long. 117-13 E Fuel - 1255

: 1216 Aircraft on SD at range of 9 miles. Sky overcast; could not see plane; submerged (Aircraft Contact #2).

: 1315 Surfaced.

: 1441 Sighted unidentified object and dived.

: 1648 Identified object as large stump and surfaced.

: 1930 Commenced hourly patrol across PALAWAN PASSAGE vicinity HALF MOON SHOAL.

: 18 Sept. Patrolling PALAWAN PASSAGE. Conducted qualification school and fire control drill.

: 0930 Shifted patrol line to vicinity ROYAL CAPTAIN SHOAL. Breakers of ROYAL CAPTAIN SHOAL could be seen at 5 miles.

: 1200 Position: Lat. 8-57 N Miles - 235 Long. 116-47 E Fuel - 1060

: 1245 Shifted patrol line 20 miles northward in PALAWAN PASSAGE.

: 2000 Shifted patrol line vicinity HALF MOON SHOAL.

: 19 Sept. Patrolling as before. Conducted qualification school.

: 0600 Sighted smoke bearing 134° T; speeded up and changed course to close. True bearing change showed smoke to be moving northward (Ship Contact #14).

— page 175 —
19 Sept. (Cont'd.)

0715 Star fix showed position to be on edge of shoal water west of PALAWAN ISLAND at Latitude 8°-45' N. Targets are not yet visible and must be running through shoal water 1 or 2 miles off PALAWAN ISLAND. Took a fathometer reading which showed shallow water; so decided to run west to the 100 fathom curve in case we had to dive.

0732 Smoke now has land background and we can no longer see it. We had light background so decided to dive to keep from being sighted if targets head for PALAWAN PASSAGE. Do not see how they will be able to move northward through numerous reefs between here and PALAWAN ISLAND. Dived and turned northward.

0917 Sighted unidentifiable aircraft bearing 108° T, range 9 miles, on southerly course apparently patrolling over convoy (Aircraft Contact #3).

1007 Surfaced and commenced running northward just outside 100 fathom curve waiting for ships to come out and attempting to run ahead and find a spot to cut in closer to the island.

1130 SD picked up aircraft at 9 miles coming in. Dived and changed course to get off track. Aircraft apparently did not sight us (Aircraft Contact #4).

1200 Position: Lat. 9-12 N Long. 117-15 E Miles - 230 Fuel - 1350

1304 Surfaced and ran at three-engine speed to gain a position ahead of convoy where we could get in closer to land.

1758 Sighted YORK BREAKERS bearing 139° T, range 4 miles.

1930 Closed land to 30,000 yards at Latitude 10°-03' N and paralleled the coast on course 230° T. This put us well ahead of target's 8-knot position; so we decided to run slowly back this track to cover his 6-knot position. This was dangerous water, but the best and only place to intercept the convoy. This careful study of the coast paid dividends later in helping us intercept another convoy on the 22nd.

2250 No signs of convoy; so changed course to west to head for PALAWAN PASSAGE.

20 Sept. Conducted qualification school.

0100 Changed course to head for ROYAL CAPTAIN SHOALS.

- 8 -

ENCLOSURE (A)

— page 176 —
20 Sept. (Cont'd.)

0943 Sighted ROYAL CAPTAIN SHOALS bearing 295° T, range 6 miles, and set course to head for HALF MOON SHOAL.

1200 Position: Lat. 8-55 N Miles - 250 Long. 116-30 E Fuel - 1925

1800 BALABAC ISLAND on radar bearing 140° T, range 25 miles; commenced running east and west patrol line west of NORTH BALABAC STRAITS and across PALAWAN PASSAGE.

21 Sept. Submerged for daylight patrol vicinity NORTH BALABAC STRAIT. Conducted fire control drill and qualification school.

0533 Submerged and commenced closing NORTH BALABAC STRAIT.

1200 Position: Lat. 8-18 N Miles - 190 Long. 116-57 E Fuel - 820

1900 Surfaced.

22 Sept. Submerged for daylight patrol vicinity NORTH BALABAC STRAIT.

0520 Submerged.

0815 Smoke sighted bearing 045° T; changed course to 100° T to close entrance to NORTH BALABAC STRAIT (Ship Contact #10).

0940 Convoy developing; we now have 2 ships and 4 more sets of masts; went to battle stations.

0954 Now have 2 columns of 2 ships with large escort leading, escort on seaward (our) flank, and apparently 3 more escorts astern and on far quarter of convoy. Decided to fire bow tubes at 2 leading ships - near one was 4000-6000 ton loaded AK and far leading ship was large transport. Wanted to shoot stern tubes at near rear ship which was another 4000-6000 ton AK.

1013 Near escort acting suspicious and heading out behind us. The water is calm but dirty, sun bright, depth of water about 30 fathoms with an 8 fathom spot less than 4000 yards ahead and the beach 6000 yards ahead and 7000 yards on the starboard beam.

— page 177 —
22 Sept. (Cont'd.)

1019:31 With 90° starboard track, small gyros, and torpedo run about 2500 yards to nearest ship, commenced firing 4 torpedoes at near leading ship, and at - 1020:09

1020:42 Commenced firing 2 torpedoes at far leading ship, torpedo run 3500 yards, 90° track, small gyros. Torpedo runs were excessive but the set-up was checking perfectly for course 190°, speed 8 knots.

1020:53 Observed and heard one hit on near ship. Near escort about 1500 yards on our port quarter; so went deep - 120 feet - while swinging for stern tube shot.

1023:09 Heard one torpedo explosion.

1023:23 Heard another torpedo explosion followed by crackling and hissing sounds. The times on these explosion checks were very close with torpedo runs for tubes 5 and 6 fired at transport. At this time sound had screws close aboard and echo ranging bouncing off the bottom and reefs to such an extent that the Commanding Officer could not tell the location of the escorts; consequently, he did not feel justified in coming up to periscope depth for a stern tube set-up.

1032 First depth charge.

1034 Second depth charge followed by a series of small sharp explosions which sounded like detonators going off (possibly mouse trap hitting bottom, depth charge duds, or explosive shells hitting the water).

1108 String of 9 depth charges, close but not too close.

1136 Periscope depth, one escort 4000 yards away with small angle on bow, and 4 more nice freighters passing right where we had made our attack. Evidently this convoy was in two well separated groups and what was thought to be the tops of escorts in close astern of the first group was actually the masts of the second group coming over the horizon. It was impossible to reach them before they entered NORTH BALABAC STRAIT so continued retiring, keeping stern toward escort.

1200 Position: Lat. 8-16 N Miles - 144 Long. 116-58 E Fuel - 625

1305 Escort heading back toward Strait, all other ships gone except for one smoking heavily; so we turned around to see what was smoking. Sighted one aircraft in vicinity of smoker (Aircraft Contact #5).

- 10 -

ENCLOSURE (A)

— page 178 —
1600 Lost sight of smoker but continued to close vicinity.
: 1730 Still no signs of any ships; so commenced opening out from coast.
: 1851 Surfaced and set course for patrol off BRUNEI BAY to await convoy which is now behind mine field barrier and in very shallow water.
: 1945 Transmitted PARGO Serial ONE.

23 Sept. Patrolling on surface vicinity focal point MIKE. Conducted qualification school.
: 1200 Position: Lat. 7-28 N Miles - 174 Long. 115-45 E Fuel - 1200
: 2000 Shifted patrol line to vicinity of 30-100 fathom shelf north of BRUNEI BAY.

24 Sept. Patrolling above location off BRUNEI BAY. Conducted fire control drill and qualification school.
: 1200 Position: Lat. 5-50 N Miles - 240 Long. 114-52 E Fuel - 1195
: 25 Sept. Patrolling same location off BRUNEI BAY. Conducted fire control drill and qualification school. Sky has been overcast for past three days and have not had good fix since night of 22nd; so took a discriminate series of fathometer readings crossing 100 fathom curve to find our position.
: 0600 Submerged for trim dive.
: 0635 Surfaced.
: 1200 Position: Lat. 5-35 N Miles - 236 Long. 114-31 E Fuel - 1170
: 1735 Set course for BALABAC STRAIT following 100 fathom curve.
: 2200 Picked up MT. KINABULA on radar at 100 miles and used it and peaks in vicinity DUKAN POINT to check our position; radar had the latter peaks at 90 miles.

26 Sept. Enroute to BALABAC STRAIT.
: 0240 Pip on radar bearing 007° T, range 13,000 yards (Ship Contact #16); the pip was large and apparently should have been picked up at a

— page 179 —
26 Sept. (Cont'd.)

much greater range. Slowed to 10 knots and began tracking; found target to be on course 200° T, making about 10 knots.

0255 Went to battle stations and commenced working around for a favorable position for a surface attack. Target is alone and is checking good on 2150 T at 13.5 knots.

0258 Target is now in sight, range 8000 yards; he looks very long and low. Too bad we have only three fish forward. Decided to fire the three bow tubes anyway to get off an attack as soon as possible, then pull out and work around ahead for a submerged stern tube attack.

0309 With a range of 7000 yards and with distance to track 4000 yards, turned toward target to reduce silhouette, slowed to 6 knots to reduce wake, and commenced attack. Target identified as a large warship - either a cruiser or seaplane tender.

0318:03 With a torpedo run of 2500 yards, small gyros, and 750 port track, commenced firing three bow tubes.

0318:29

0319:37 Heard and saw first of two beautiful hits which covered his entire forecastle and bridge with heavy black smoke. The first hit was followed by a series of staccato explosions which the Commander of the Officer mistook for gunfire; so he sounded the diving alarm. Before the bridge was cleared at -

0319:43 Another terrific explosion, the percussion wave of which was felt inside the submarine. Target was now 2000 yards away. (The location of this hit could not be determined for target was obscured in a great pall of smoke.)

0322 Returned to radar depth and continued tracking the target, which we could not see through the periscope. Ranges and bearings were not checking and indicated target was out of control.

0324 Commanding officer ordered diving officer to plane up so he could return to bridge and observe better the actions of the target. Target was seen to be smoking heavily and circling, apparently badly damaged, and with practically no way on.

0327 Submerged to obtain position for stern tube attack in view of the fact that target was a large man-of-war, undoubtedly equipped with radar, and thoroughly alerted.

Several periscope-radar approaches were made to bring the stern tubes to bear, but each time these attempts were thwarted by the

— page 180 —
26 Sept. 1944 (Cont'd.)

target' turning away. Apparently our position was known to him either by sound or radar (or just plain luck). He passed across our bow tubes inside of 2500 yards at least three times but we had no torpedoes left forward. If a submarine ever wanted 50 torpedoes forward, we did now! Finally, after trying for two and one half hours, at -

0558:15 With dawn breaking - maneuvered to get him across the stern tubes and fired four torpedoes with 2700 yard torpedo run, small gyros, and 1300 - 1400 starboard track - target checking on course 1300 T, speed 5 knots.

0601:27 Saw, felt, and heard another good hit which completely hid the ship with grey smoke. This was our first experience with a Mark 18-1 torpedo head, and it lived up to our expectations. Two torpedoes were heard to run past the target and explode at end of run. In view of the many times the stern tube muzzle doors were opened and closed, it is believed the other stern torpedo which should have hit flooded and sank without arming.

0606 Took several pictures, reloaded our one remaining torpedo, which was aft, and commenced closing for another attack.

For the last two hours the target has been on a southerly or southeasterly base course heading for shoal water, which we figure is now about 5 miles away, although we have had no definite fix for three days now. By this time, the target was definitely identified as a large seaplane tender similar to the CHIYODA Class with a deck load of twin-engine bombers and a bed-spring radar antenna about 10' x 15'. It was hoped to close for a 1000 yard 90° track set-up for our last torpedo.

0620 Battery gravity now 1175; so speed was reduced to 4 knots to try to make the battery last and still be able to make another attack. At this speed we were unable to get forward of his beam, as he was still making 3 to 4 knots and zigging indiscriminately.

0628 Two-stack escort, which looked like a DD, arrived on the scene to heckle with pinging and fast screws.

0635:08 Decided we would have to shoot now or never; so with a possible, but not good, set-up, track angle 1150 starboard, torpedo run 2700 yards, target speed 3 knots, fired our last torpedo.

0637:50 Took one picture at time torpedo should have hit. Torpedo missed and exploded at end of run; so with the sun up and the battery

— page 181 —
26 Sept. (Cont'd.)

: 0715
: Fast screws and more pinging coming in; seas coming to 250 feet and escort went by.

: 1200
: Position: Lat. 7-13 N. miles - 207
: Long. 115-55 E. Fuel - 1325

: 1205
: Surfaced with 1145 specific gravity in battery and commenced a much needed charge

— page 182 —
28 Sept. Enroute FREMANTLE: conducted qualification school.

0100 Set course to pass 5 miles east of MENDARIK ISLAND.

0620 Submerged to remain undetected in vicinity of land.

1200 Position: Lat. 1-22 N Miles - 312
           Long. 107-12 E Fuel - 4215

1816 Sighted small sailboat bearing 260° T, range 4 miles (Ship Contact #17).

1928 Surfaced and set course for KARIMATA STRAIT.

2145 Radar contact on sailboat bearing 212° T, range 7,700 yards. Maneuvered to avoid (Ship Contact No. 18).

2343 Crossed Equator.

29 Sept. Enroute FREMANTLE; conducted qualification school.

0127 Radar contact on sailboat bearing 145° T, range 3200 yards; maneuvered to avoid (Ship Contact #19).

0612 Submerged to remain undetected and transit KARIMATA STRAIT at night.

1200 Position: Lat. 1-26 S Miles - 209
           Long. 108-06 E Fuel - 2530

1210 Sighted sailboat bearing 207° T, range 8000 yards (Ship Contact #20).

1405 Sighted sailboat bearing 276° T, range 4000 yards (Ship Contact #21).

1915 Surfaced and commenced transit of KARIMATA STRAIT. Radar picked up KARIMATA ISLAND bearing 100° T, range 25 miles.

2230 Completed transit of KARIMATA STRAIT.

30 Sept. Enroute FREMANTLE; conducted qualification school.

0654 Sighted sailboat bearing 240° T, range 7 miles (Ship Contact #22); avoided.

1200 Position: Lat. 4-43 S Miles - 270
           Long. 111-00 E Fuel - 4110

— page 183 —
30 Sept. (Cont'd.)

2022 Radar contact on sailboat bearing 061° T, range 9600 yards (Ship Contact #23); avoided.

1 Oct.

0230 Radar picked up GREAT MASALEMBO bearing 054° T, range 20 miles.

0300 Radar picked up first of a group of small fishing vessels in vicinity of GREAT MASALEMBO; avoided.

0719 Sighted another sailboat bearing 112° T, range 6 miles.

0722 Submerged to investigate sailboat.

0910 Unable to close sailboat; surfaced. Sighted several sailboats about 7 miles away; maneuvered to avoid on the surface.

1003 Submerged for SD contact at 3 miles (Aircraft Contact #6). Decided to investigate nearest sailboat.

1145 Took pictures of apparently innocent native sailboat.

1200 Position: Lat. 5-50 S Miles - 292 Long. 115-38 E Fuel - 4935

1412 Surfaced and set course for LOMBOK STRAIT.

1905 Radar contact bearing 315° T, range 12,000 yards. Bearing and range on this pip changed very rapidly indicating pip was an aircraft (Aircraft Contact #7).

2 Oct. Enroute FREMANTLE; conducted qualification school.

0038 Sighted small boat bearing 160° T, range 8500 yards; avoided (Ship Contact #24).

0200 Commenced transit of LOMBOK STRAIT at 4-engine speed.

0247 Sighted patrol boat bearing 165° T, range 8000 yards; avoided (Ship Contact #25).

0400 Completed transit of LOMBOK STRAIT.

0445 Radar contact bearing 286° T, range 8000 yards; maneuvered to avoid (Ship Contact #26).

- 16 -

ENCLOSURE (A)

— page 184 —
1200 Position: Lat. 10-56 S
: 1200 Long. 115-35 W
: 2307 Sent P.N.C.O Serial THR.
: 3 Oct. Underway enroute THR. CONDUCTED QUALIFICATION SCHOOL AND
: 1200 Position: Lat. 16-44 S
: 1200 Long. 114-06 E
: 4 Oct. Underway enroute THR. CONDUCTED QUALIFICATION SCHOOL AND
: 1200 Position: Lat. 21-29 S
: 1200 Long. 112-02 E
: 5 Oct. Underway enroute THR. CONDUCTED QUALIFICATION SCHOOL.
: 0505 Surmerge for 6 hour battery discharge.
: 1200 Position: Lat. 25-47 S
: 1200 Long. 111-47 E
: 1426 Complete battery discharge and surface.
: 6 Oct. Underway enroute THR. CONDUCTED TRAINING CIVES.
: 1200 Position: Lat. 29-36 S
: 1200 Long. 113-30 E
: 7 Oct. Underway enroute THR. NTL.
: 0600 Make rendezvous with escort. CONDUCTED SURFACE SOUND TEST, RAN
: 6 Oct. CEGUASSING RANGE, ENC MOOREC ALONGSIDE U.S.S. GRIFFIN.

- 17 -

[COLORED TEXT (A)]

- 17 -

[COLORED TEXT (A)]

— page 185 —
1.5
Subject: U.S.S. FARGO (SS264) - Report of Fifth War Patrol.

(C) 1.5
Weather:
    - Weather in general agreed with information given in hydrographic charts.
    - Hazards:

— page 188 —
1. 9/9/44 9/17/44 9/19/44 9/22/44 10/1/44 10/14/44
2. 1340 1216 0917 1130 1305 1003 1905
3. 9-55 S 7-56 N 6-53 N 9-06 N 6-00 N 5-45 N 6-27 S
4. E.Long. 115-5-6 117-14 117-01 117-23 116-52 115-35 116-32
5. 13 10 13 15 16 17
6. 000 040 026 035 270 080 160
7. Surf. Surf. Surf. Surf. Surf. Surf. Surf.
8. Number 1 1 1 1 1 1 1
9. Type Unic. Unic. Unic. Unic. Unic. Unic.
10. Probable mission Rat. Pat. Sec. Sec. Sec. Pat.
11. H. Contacted SD RACAR RACAR RACAR RACAR
12. Initial Range 7 9 8 9 8 3 6
13. Elevation angle 3 0 2 2 2
393. Range & Relative Bearings of

— page 190 —
6.6. : 6.5. : 5.4. : 4.4. : 4.3. : 4.2. : 4.1. : 3.4. : 3.3. : 3.2. : 3.1. : 2.4. : 2.3. : 2.2. : 2.1. : 1.4. : 1.3. : 1.2. : 1.1. : 0.4. : 0.3. : 0.2. : 0.1. : 0.0.

— page 193 —
1. USS S-25 (SS254) - Report of Fifth at Patrol.

U.S.S. P-100 (SS264)    TORPEDO LT. C. 0.3    F.TROL NO. 5
Time 1020    Date 22 Oct. 1944    Lat. 8°-15'    Long. 117°-02' 3

Target Data - Damage Inflicted

Description
First target was leading ship in near column of 4 ship convoy escorted by 1D patrolling ahead on small at
patrolling near (searched) flank. Ships arranged in 2
columns of 2 ships each. Tor or more ships as a
second section of the convoy were about 5 miles astern
of the first group of 4 ships and their masts were mis-
taken for tops of small escorts (directly astern of first
group.

Ship(s) Sunk:
None

Ship(s) Damaged or
Probably sunk:
One - Loose freighter similar to Zid. or 2nd
Class, 5400 tons, (OIL 20-J-2Mevisec, Fages 215 - 215).
Damaged assessee: Damage - 2nd (ADM. 2nd Class) (CD) -
5,400 tons

Damage Determined by:
Saw and heard one torpedo hit target amidships. Did
not have opportunity to observe full effects of this
hit. Heard hissing and crackling sounds later.

Target Draft 20' Course 190° Speed 6 Range 2500 (at firing).

Own Ship Data

Speed 3 Course 109° Depth 55' Angle 10 down (at firing).

Fire Control and Torpedo Data

Type attack
Submerged camouflaged attack using torpedoes in a con-
fined area in 30 fathoms of water. Hit reefs clear.
Ahead and on starboard beam, using TDC and Conning
To. or plot to track target and TDC plot to avoid
nearby reefs and shoals. Right sun, calm surface,
dirty water. Fire 4 torpedoes using 2' divergent
spread each check. Earning before firing the 3rd tor-
peo.

- 26 -

— page 204 —
1. TAC (224) - Report of fifth air patrol.

---

**Sound conditions were poor. In vicinity Lat. 60°1, Long. 115°1, subterranean rumblings, Irish enc. surr noises were very prominent.**

---

**Draft: 11.15ft.**

---

**No. of crew members were 0. several.**

---

**F. 1.

— page 205 —
1. ... P.M.CQ (224) = report of fifth air patrol.

(T) 1. Torpedoes - Auel - Provisions - Personnel factor

0 26,000 30 30

Limiting factor this patrol - Torpedoes.

(U) 1. Radio or radar countermeasures were noted or uncertain.

(V) 1. Radio.

1. On the five I airk Ie-1 torpedoes carried aboard curin this patrol, three of the torpedoes and batteries were carried on their third patrol, and one torpedo and battery was carried for its second patrol. However, no maintenance difficulties were encountered. A battery rounds occurred and no cells required altering. All batteries responded favorably to the seven amperes charge rate, and charging procedure was simplified for torpedo personnel. The use of the new arc-leoner, Inc., two-circuit charging panel, which was carried on board for the first time.

2. Five I airk Ie-1 torpedoes were fired. Sound tracks of four of the torpedoes out. One hit was a service after a 2,500 yard torpedo run. Three were explosions were heard after approximately 45 minutes of torpedo run. The remaining torpedo was not heard running after it had left the tube, nor was an end of run explosion heard. In view of the fact that the tube was fired 45 minutes prior to firing, it is believed that this torpedo fired in the tube an. sank without arming. The ten pound air test was made on all torpedoes before loading them in the tubes.

3. Severe charring of fiber board burner wire insulator plates was noted. The charring was caused by the burning of the wire insulation. It is suspected that only asbestos insulation for plates was used, that burner was installed in number 5 hand hole to permit replacement without causing the torpedo to fire. From the tube, and that only conductor cable of proper size to insure positive operation of the wire cutter mechanism to use. For the burner cable.

4. Although in minable waters near minefields, no mine laying or seeping activities were noted. Information on non-mine fields was greatly appreciated.

5. On two occasions enemy convoys of 5 to 10 ships were observed passing 3 to 5 miles off the west coast of Falmouth. These vessels should be mined by aircraft at the first opportunity.

- 36 -

— page 206 —
6. Throughout this patrol, where navigational canoes are one of our greatest hazards, the performance of duty of the executive officer and navigator, Lieutenant Mark D. HOGG, USNR, was outstanding. Through his interest and industry, he brought this safely through these dangerous waters. Likewise, Lieutenant HOGG handled his duties as executive officer and assistant approach officer in a manner far in advance of his actual years of experience.

- 39 -

CLOSURE: (A)

— page 207 —
1-10/A16-3(18) SUBMARINE FORCE, PACIFIC FLEET km
Serial 0124 Care of Fleet Post Office,
San Francisco, California,
7 February 1946.

From: The Commander Submarine Force, Pacific Fleet.
To: The Chief of Naval Operations.
Via: The Commander in Chief, U. S. Pacific Fleet.

Subject: U.S.S. PARACHUTE (SS384) - Report of Fifth War Patrol.

Reference: (a) COMBAT: third end. FTL-10(A)/A15-3(18) serial 01141 of 16 May 1945.

1. On 9 April 1945, in position 39-06 F, 141-57 E, PARACHUTE aircraft, what was believed to be an enemy destroyer of the U.S.S. PARACHUTE class (1,200 tons) and a medium sized transport estimated at 5,000 tons. The escort vessel was hit with one torpedo and seen to sink; the ship believed to be a transport zigged away at moment of firing and it was thought that all torpedoes missed.

2. Reliable intelligence, subsequently received, indicates that the ships attacked by PARACHUTE on this occasion were in fact the A3 of 700 tons and the A35 of 700 tons, and states that both of these ships were sunk.

3. Please modify reference (a) as follows:

(a) Delete all after the word "patrol" in the second sentence of paragraph 4 and substitute thereafter:

SURK

1 - A1 (A14-3) 700 tons
1 - A1 (A14-35) 700 tons
7 - AK (TALENT HARD CLASS) 3,200 tons
1 - Small coastal freighter 200 tons
TOTAL SURK 5,400 tons

DALY

1 - A0 (Type 55 INT) 3,200 tons
1 - A0 (Type 55 INT) 3,200 tons
1 - Trawler 200 tons
1 - For Truck 200 tons
TOTAL DALY 6,800 tons

TOTAL SURK & DALY 12,200 tons

File No. 851
Doc. No. 196850
Frank T. Watkins,
Chief of Staff Copy No. 1

Distribution & authentication on next page.

— page 208 —
12-10/413-3(1e) SUBMARINE FORCE REPORT
Serial 0124
CORRIDENTIAL
Subject: U.S.S. FALCON (SSS#64) - Report of Fifth Naval Patrol.

DISTRIBUTION:
CINCO (12)
CINCO (5)
TROPICAL (1)
CONSERVANCE (1)
CINCLENT (1)
CONSUBLEANT (8)
S/S SCHOOL, II (2)
CO, S/S BASE, 22 (2)
CONSOPAC (2)
CONSUBSTANTIAL SEAFRON (4)
CONMORPACE (1)
CONSUBSPACE (40)
SUBMARINE, II (3)
ALL SECURED AND DIV. COMMERCE, PACIFIC (2)
CONSUBOPTREACH (5)
ALL SUBMARINES, PACIFIC (1)
CONCR. 1". 1". INCORRY, USN. (1)

W. B. SICILIAFF,
Commander, USN,
Flag Secretary.

— page 209 —
FCS-12/A16-3/FB-12c SUBMARINE SQUADRON TWELVE
Serial 0318
CONFIDENTIAL
FIRST ENDORSEMENT to
U.S.S. PARGO - Report
of Fifth War Patrol.

First: The Commander Submarine Squadron TWELVE.
To: The Commander in Chief, United States Fleet.
Via: (1) The Commander Submarines, SEVENTH FLEET.
(2) The Commander, SEVENTH FLEET.

Subject: U.S.S. PARGO (SS264) - Report of Fifth War Patrol.

1. The first attack on a medium AK escorted by a PC boat was unsuccessful because the target zigged as torpedoes were fired. Moreover, as the target was not alerted, and it was still alert, a second attack was made an hour later which resulted in two observed hits followed by a violent explosion on the target and its disappearance. The escort fled.

2. The third attack was made submerged in daylight, dividing fire between an AK and an AP. One hit was seen and heard on the AK and two timed hits were heard on the AP, but rapid counter attacks by an escort prevented observing further damage.

3. The last three attacks were made on an AV similar to the CHYODA class. After a night radar approach, position was gained to fire three bow tubes, which gave two observed hits. This was followed by a submerged approach, trying to bring the stern tubes to bear, as all torpedoes fired had been expended. One more hit was secured this time. Finally the last torpedo was located and was fired as an escort arrived on the scene but unfortunately it missed. When last seen, the target was still afloat but appeared to have lost its bow and was proceeding at slow speed.

4. The PARGO returned firing a patrol in very good material condition. Machinery was in particularly good condition, indicating excellent care during the patrol. The faulty installation of the connection -rock bearing which caused the casualty to explode -3 main engine has been investigated. In order to prevent recurrence, a change has been made to engine overhaul inspection methods. A heat run will be made on the gyro-compass to assure maximum vacuum throughout the patrol.

5. The Squadron Commander congratulates the Commanding Officer, Officers, and Crew for an aggressive patrol and for the damage inflicted on the enemy.

J.B. CRICOS: 3 8

— page 210 —
12a/pr
31 October 1944.

FE24-71/A16-3
Serial 01277
O-O-N-F-I-D-E-N-T-I-A-I
SECOND ENDORSEMENT to:
USS PARGO Conf. Ltr.
A16-3 Serial 017, dated
7 October 1944. Report
of Fifth War Patrol.

From: The Commander Submarines, SEVENTH FLEET.
To: The Commander in Chief, UNITED STATES FLEET.
Via: The Commander, SEVENTH FLEET.

Subject: U.S.S. PARGO (SS264) - Report of Fifth War Patrol - Comment on.

1. PARGO's Fifth War Patrol was conducted in the SOUTH CHINA SEA off the Northwest coast of BORNEO and in PALAWAN PASSAGE. It was the first war patrol for Lieutenant Commander D. B. REILL, U.S.N., in command of a Fleet Type Submarine.

2. The area was thoroughly and intelligently covered. On two occasions, PARGO worked close in to the West coast of PALAWAN in attempts to intercept convoys proceeding inside the reefs and shoals. An attack position was reached on one of these convoys in thirty fathoms of water, and two large ships were damaged.

3. The last eight torpedoes were expended in three persistent and determined attacks on an unidentified ACV in PALAWAN PASSAGE. Two hits were obtained from the last three bow torpedoes in a well conducted night surface attack. PARGO then submerged and maneuvered for about three hours before gaining a stern tube attack position on the damaged target which was zig-zagging radically at slow speed. One hit from four torpedoes failed to sink the target. The last torpedo, fired in another submerged attack, missed, and this valuable ship escaped. Pictures taken in daylight at the time of the third attack show that the bow was knocked off almost up to the bridge. From the pictures the ship appears to be a KATORI CI converted to an ACV.

4. During the attacks the Commanding Officer observed a bed spring type radar antenna, about nine feet by fifteen feet, high up on the foremast.

5. A hazardous special mission was expeditiously accomplished.

6. The award of the Submarine Combat Insignia to the authorizing officer is MICRO.

EXTRA: ORIGINAL
PHOTO-LAB OP-16
RETURN TO F-4253

— page 211 —
1/2/1944
UNITED STATES NAVY
Serial 01277
O-O-N-F-I-D-E-N-T-I-A-L
SECOND ENDORSEMENT to:
USS PARGO Conf. Libr.
A16-3 Serial 017, dated
7 October 1944. Report
of Fifth War Patrol.

Subject: U.S.S. PARGO (S3264) - Report of Fifth War Patrol - Comment on.

7. The "Force Commander congratulates PARGO's Commanding Officer, Officers, and Crew, on successfully performing a special mission and on inflicting the following damage on the enemy in an aggressive and well conducted patrol.

SUNK

1 - AK (Similar TONE MARU - EG) 4,000 Tons (Attack No. 2)
DAMAGED

1 - AK (Similar ADA MARU - EG) 5,400 Tons (Attack No. 3)
1 - AP (Medium - EU) 7,500 Tons (Attack No. 4)
1 - AOV (Converted KATORI GL - EU) 9,000 Tons (Attacks No. 4 and 5)
Total 12,900 Tons
Grand Total 22,900 Tons

R. W. CHRISTIE.

DISTRIBUTION:
Cominoh (3) - Direct OTG-71.3 (2)
Vice Opnav (2) - Direct OTG-71.4 (2)
Vice Opnav Op-230 (1) CTG-71.5 (2)
ComlstFlt (1) DivComsSubRon-12 (1)
Com2ndFlt (1) DivComsSubRon-16 (1)
Com7thFlt (2) DivComsSubRon-18 (1)
ComSubs1stFlt (30) S/M School N.L. Conn. (2)
ComSubs2ndFlt (4) SubAd, Mare Island. (2)
OTF-71 (4) S/Ms 7TH FLT (1)
OTF-72 (2)

THIS REPORT WILL BE DESTROYED PRIOR ENTRY INTO ENEMY CONTROLLED WATERS.

P. F. STRAUB, Jr.,
Flag Secretary.

— page 212 —
16-3(F-3-4A/whr)
Serial 02914

CONFIDENTIAL:
THIRD ENDORSEMENT to:
CO, U.S.S. PARGO (SS264)
Conf. Ltr., serial 017
of 7 October 1944.

From: Commander Seventh Fleet.
To: Commander in Chief, United States Fleet.

Subject: U.S.S. PARGO (SS264) - Report of Fifth War Patrol - Comment on.

1. Forwarded.

2. The successful accomplishment of a hazardous special mission is noted with pleasure.

3. The Commanding Officer, officers and crew of U.S.S. PARGO are congratulated for the completion of a persistent and skillfully executed war patrol.

Copy to:
ComSubs Seventh Fleet
ComSubRon TWELVE
CO, U.S.S. PARGO

— page 213 —
18 March 1946

REASSESSMENT OF DAMAGE BY SUBMARINES

Reference: (a) ComSubPac 1tr. FF12-10/L11(1) of 21 February 1946.

USS PARGO (SS264) 5th War Patrol
Date of Attack: 26 September 1944
Position: Vicinity BALA BAC Strait

Target on 26 September 1944 was a single unescorted ship which suffered three hits from PARGO. Credit for damage was assessed, estimated tonnage 6000, estimated type ACV.

DNI and Japanese reports state that the ship sunk by PARGO on this occasion was in fact the AOTAKA - CM8 of 2000 tons.

Commanding Officer, Comdr. D. B. Bell, U.S. Navy.

Copy to:
ComSubLent
SubSchool New London
CO SS-264
Op-23E
Op-414C3

— page 214 —
104853 FILMED

End transcription:

U.S.S. FALCON (SS264)
Care of Fleet Post Office,
San Francisco, California,
21 December 1944.

From: The Commander, Chief, United States Fleet.
To: The Commander in Chief,
Official Channels.
Via: [Handwritten: via]

Subject: U.S.S. PARGO (SS264) - Report of Sixth War Patrol.

Enclosure: (A) Subject report.
(B) Track chart (ContassGroup 71.1 only).

1. Enclosure (A), covering the Sixth War Patrol of this vessel, conducted off the northwest coast of BORNEO between BRUNEI BAY and PALAWAN PASSAGE, during the period 20 October to 21 December 1944, is forwarded herewith.

DECLASSIFIED-ART. 0445, OPNAVINST 5510.1C
BY GP-09R9C-DATE 5/34/42
DECLASSIFIED

— page 215 —
7 Oct. 1944
: 7 Oct. 1944

**Officers and Chiefs: Petty Officer 2nd Board**

| Officer | Chief Petty Officer |
|||
| Lt. Comdr. David E. Ball | USN |
| Lieut. Edward D. Hogg, P-1 (G), USN | 9 |
| Lieut. James W. Martin, USN | 8 |
| Lieut. John Ladd, D-1 (G), USN | 4 |
| Lt. (j.g.) George E. McAllister, L-1 (S), USN | 3 |
| Lt. (j.g.) Robert C. Rom, E-1 (G), USN | 5 |
| Lt. (j.g.) George A. Miller, LII, USN | 4 |
| Lt. (j.g.) Creighton W. Cook, USN | 5 |
| Radio Elen. Russell V. Goyette, P-1 (RS), USNR | 5 |

PA FLCZAK, John (n), 337 06 34, CTT (AA), USN | 12 |
REID, Paul Keyton, 267 31 67, ComM (AA) (T), USN | 6 |
BAITH, Averell Dickson, 223 22 51, ComM (AA), USNR | 5 |
NEIGHB, Walter Irwin, 212 30 96, CCS (AA) (T), USNR | 5 |

ATL THIS AUG ZONE MINUS 6TH (HOW).

28 Oct. Conducted scheduled training exercises.

1745 Underway in accordance with CTG 71.1 secret operation order 158-44 dated 27 October 1944 in company with ISAEL.

1807 Conducted uncerray sound tests, results satisfactory.

1800 to Conducted practice approaches with ISABEL as target.

2300 Released ISABEL and proceeded enroute EXHAUTI (GULF in company with HADD).

-1- ENCLOSURE (A)

— page 216 —
29 and 30 Oct. Conducted training dives, battle surface, and day and night fire control and tracking drills with HADDO.

1200/29 Position: Lat. 29°-46' S Long. 113°-33' E Miles - 20ft. Fuel - 2665

1200/30 Position. Lat. 25°-25' S Long. 112°-24' E Miles - 2967 Fuel - 3165

1226 Sent PARCO Serv. No. 1

31 Oct. Enroute H.MOUTH GULF. Conducted pointer and trainer drill.

0635 Aircraft on SD Radar at 6 miles; identified as a B24 (Aircraft Contact No. 1).

1200. Position: XOUTH GULF Miles - 347 Fuel - 4500

1203 Moored outboard of U.S.S. H.MCK alongside U.S.S. YO-10 and received 9300 gallons of fuel from YO-10.

1605 Unnerway enroute LON. O.S.TRAIT in company with HADDO.

1 Nov. Conducted training dives and battle surface drill.

0130 Lost contact with HADDO.

0957 Sighted allied submarine bearing 020° T, range 14,000 yards, and exchanged reconfigurations signals (Ship Contact No. 1).

1200 Position: Lat. 19°-44' S Long. 113°-13' E Miles - 242 Fuel - 2515

1830 Made a practice battle surface and fired 5 rounds of 4" common, both 20 lb. guns, and .50 cal. machine gun.

1930 Pip on radar bearing 339° T, range 10,000 yards (Ship Contact No. 2). Pip identified as friendly submarine through exchange of recognition signals.

2 Nov. Conducted training dives, tracking drill, fire control drill, and qualification school.

0903 Contacted H.DDO bearing 079° T, range 17,000 yards.

1200 Position: Lat. 14°-30' S Long. 114°-38' E Miles - 337 Fuel - 3540

- 2 -

ENCLOSURE (A)

— page 217 —
1915
Pip on radar bearing 350° T, range 7000 yards (Ship Contact No. 3).
Pip disappeared before recognition could be effected.

: 3 Nov.
Conducted qualification school and training dives.

: 1100
Sighted land vicinity LOBOK STRAIT, distance 40 miles.

: 1200
Position: Lat. 9°-20' S Miles - 335
Long. 115°-29' E Fuel - 3495

: 1220
Submerged to await darkness before closing LOBOK STRAIT.

: 1858
Surfaced and headed for LOBOK STRAIT.

: 2032
Commenced passage of LOBOK STRAIT.

: 2101
Radar picked up first of three escort vessels bearing 315° T, range 10,500 yards (Ship Contact No. 4). Avoided on surface. Identified by sighting as PC boat.

: 2116
Radar picked up second patrol vessel bearing 070° T, range 7000 yards (Ship Contact No. 5). Avoided on surface. Identified by sighting as another PC boat.

: 2126
Radar picked up third small vessel, bearing 280° T, range 4000 yards (Ship Contact No. 6). Avoided on surface. Identified by sighting as PT boat or submarine. This vessel was small and had very low silhouette. Although we passed right between these last two escorts while the moon was rising, apparently we were not sighted.

: 2230
Completed transit of LOBOK STRAIT.

: 2254
Sighted small sailboat bearing 090° T, range 6000 yards (Ship Contact No. 7). Avoided on surface.

: 4 Nov.
Uncertainly enroute assigned patrol area. Conducted qualification school. Encountered several small sailboats and fishing craft which were avoided on the surface.

: 0526
Submerged for daylight patrol 20 miles east of SEKALA ISLAND.

— page 218 —
4 Nov. (Cont'd.)

1200 Position: Lat. 6°-29' S Miles - 208
Long. 116°-37' E Fuel - 2530

1840 Surfaced and set course to pass 15 miles south of GREAT MASALAMBO.

5 Nov. Uncountered several small sailboats and fishing craft. Conducted qualification school.

0532 Submerged for daylight patrol.

1200 Position: Lat. 5°-17' S Miles - 185
Long. 113°-58' E Fuel - 1560

1900 Surfaced and set course to pass 10 miles north of TAN ISLAND.

1950 Picked up TAN ISLAND on radar bearing 271° T, range 45 miles.

6 Nov. Conducted qualification school.

1200 Position: Lat. 4°-18' S Miles - 275
Long. 109°-45' E Fuel - 3235

1520 Sighted DISCOVERY EAST BAY light house bearing 002° T, range 24,000 yards.

1655 Submerged to await darkness.

1635 Surfaced and commenced transit of KARIMATA STRAIT.

2335 Radar picked up KARIMATA ISLAND bearing 341° T, range 57 miles.

7 Nov.

0005 Pip on radar 241° T, range 8400 yards (Snip Contact No. 8). Avoided on surface.

0555 Submerged for daylight patrol.

1200 Position: Lat. 10°-03' S Miles - 290
Long. 108°-05' E Fuel - 3640

1902 Surfaced and set course for PANGII ISLAND.

2300 Crossed equator at longitude 100° E.

- 4 -

ENCLOSURE (A)

— page 219 —
8 Nov. Conducted qualification school and fire control drill.

: 0037 Sighted small sampan bearing 010° T, range 3700 yards; avoided.

: 0616 Submerged for daylight patrol.

: 1200 Position: Lat. 10°-56' N Long. 108°-09' E Miles - 185 Fuel - 1315

: 1915 Surfaced and set course to pass 15 miles west of SERAJIA ISLAND.

: 9 Nov. Conducted qualification school and fire control drill.

: 1200 Position: Lat. 5°-11' N Long. 110°-35' E Miles - 265 Fuel - 2680

: 10 Nov. Conducted qualification school and fire control drill.

: 0840 Entered assigned patrol area.

: 1200 Position: Lat. 6°-28' N Long. 114°-47' E Miles - 290 Fuel - 2605

: 11 Nov. Patrolling BALABAC STRAIT. Conducted qualification school and fire control drill.

: 0546 Submerged for trim dive.

: 0606 Surfaced.

: 0837 Sighted aircraft (FETE) bearing 197° T, range 10 miles (Aircraft Contact No. 2) and submerged to avoid detection.

: 0950 Surfaced.

: 1151 Sighted aircraft (SALLY) bearing 080° T, range 6 miles (Aircraft Contact No. 3) and submerged to avoid detection.

: 1200 Position: Lat. 70°-39' N Long. 116°-36' E Miles - 256 Fuel - 2110

: 1252 Surfaced.

: 12 Nov. Patrolling BALABAC STRAIT. Conducted fire control drill.

: 1200 Position: Lat. 70°-43' N Long. 116°-30' E Miles - 252 Fuel - 1915

- 5 -

ENCLOSURE (A)

— page 220 —
1600 Shifted patrol line to vicinity of ROYAL CAPTAIN SHOALS.

: 13 Nov. Proceeding northward in PALAUAN PASSAGE.

: 0147 Pip on radar bearing 07° 19' T range 11,900 yards (Ship Contact No. 9). (Changed course to parallel target and commenced tracking.

: 0207 Target on course 230° T at about 10 knots and had an escort 3000 yards on his starboard quarter. Leicicled to run around ahead of him and attack from his port side. Had about 1 hour and 40 minutes before motorise.

: 0216 Target changed course to 180° T, leaving us on his starboard side again. Decided if target did not zig back we would go in for a surface attack from starboard side with a sharp track. An attack from port now would put us near the shoal water west of PALAUAN ISLAND.

: 0238 From a position 6000 yards 'earring 035° relative from the target, turned in for the attack, keeping own speed and silhouette to a minimum to avoid detection. Target looked like a small warship.

: 0242 Identified target as a two-stack destroyer similar to the HATCHURU class; escort still not in sight.

: 0245:20 Fired four bow tubes at target with small gyros, 60° to 79° starboard track, and torpedo run from 1500 to 1000 yards. Twenty seconds after firing first torpedo, target emitted sparks from his stack and, by time last torpedo was fired, was turning toward. He had apparently detected torpedoes by wakes or by sound. All torpedoes missed close ahead of target, and the race was started.

: 0246 'Sent ahead flank and swung left to evade. Destroyer now had small angle on the bow and was firing a heavy machine gun which had the rate of fire, sound, and tracer appearance of a 20 Mh. His first burst sent a stream of tracers down our port side about 50 yards off in deflection. Range to destroyer at this time was 1000 yards.

: 0247 Swung right until escort, which was a PC, was about 2700 yards on our starboard beam and turning toward; destroyer was astern with a small starboard angle on the bow.

: 0246 Restrover fired another burst which passed somewhere between 20 feet and 20 yards down our port side parallel to us. PC boat was now in a threatening position heading for us; so at -

- 6 -

ENCLOSURE (A)

— page 221 —
13 Nov. (Cont'd.)

0250 Submerged, went to 300 feet, rigged for depth charge, and reversed our course at full speed. Found a very welcome 150° gradient at 200 feet. Heard another burst of machine gun fire go by as we passed 40 feet.

0257:45 First depth charge.

0258:20 First of four depth charges.

0259:21 Sixth and last depth charge; none was damaging but all shook the boat considerably. Pinging and screws were heard close aboard for next half hour.

0402 Pinging was distant and screws could no longer be heard; so came up to periscope depth to investigate; all clear.

0411 Surfaced and picked up targets bearing 055° T, range 10,000 yards. The moon was up and the target alerted; so decided to run away from expected air search and try to meet this outfit after nightfall near ERUNEI BAY.

I do not think we were sighted before firing, as we had good cloud background, but this target certainly picked up the torpedo wakes and took correct action quicker than anyone I have ever seen before.

0415 Proceeded on course 230° T at three-engine speed to gain a position well ahead on target's track where we could wait for him to pass again.

1200 Position: Lat. 70-06' N Long. 115°-34' E Miles - 268 Fuel - 2535

1833 Submerged for trim dive.

1839 Reversed course and commenced heading back up assumed track of target.

1846 Surfaced.

1923 Picked up radar sweep bearing 152° T.

1959 Picked up target on radar, bearing 020° T, range 16,000 yards, and commenced tracking (Ship Contact No. 9, again.

2010 Target was using a radical zig plan, base course 220° T, speed 12 knots.

ENCLOSURE (A)

— page 222 —
13 Nov. (Cont'd.)

2030 Target was visible at 6000 yards and at 6000 yards angles on the bow could be made out. We were at this time attempting to cross over to his port side to attack on the side opposite from the PC escort, which was about 1000 yards on his starboard beam. Then range was 6000 yards target zigged toward us and continued to turn toward us as we attempted to open the range. Sent ahead full and succeeded in opening the range somewhat, though target was still heading our way and was 600' off his original course. He apparently had us in sight or was using a radar detector.

2046 Gave up the attack in view of fact that target was again alerted and had too much of an advantage with his little helper alongside.

2103 Target was still following us at a range of 9500 yards, so decided to try securing the SJ radar.

2125 Target was now at 17,700 yards and had apparently lost us. In view of target's change of course toward us at 0210 last night, his prompt action when torpedoes were fired, his detection of us tonight, and our inactivity to shake him off our track with the SJ radar manned tonight, it is believed that he was using a radar detector which had fair directional but very inaccurate ranging characteristics.

2126 Proceeded up track that these two escorts had come down in hopes of finding something for which they might be acting as sweep.

14 Nov. Conducted qualification school and fire control drill.

0801 Sighted two-engine bomber (IRVING) bearing 2250 T, range 10 miles (Aircraft Contact lio. 4). Direct to avoid detection.

0907 Surfaced.

0909 Aircraft again on SD radar at 15 miles. Aircraft was sighted shortly afterward bearing 1700 T and identified as same plane as above. Submerged to avoid detection.

1032 Surfaced.

1110 SD picked up plane again at 9 miles; submerged to avoid detection.

1200 Position: Lat. 70-30' N Long. 115-57' E Miles - 200 Fuel - 1765

1312 Surfaced.

— page 223 —
1313 Plane on SD again at 12 miles; submerged to avoid detection.
: 1605 Surfaced; plane had gone home at last.
: 15 Nov. Conducted qualification school and fire control drill.
: 0737 Aircraft on SD radar at 6 miles (Aircraft Contact No. 5). Submerged to avoid detection.
: 0932 Surfaced.
: 1200 Position: Lat. 80-51' N Miles - 211
: 1325 Aircraft on SD radar at 6 miles (Aircraft Contact No. 6). Submerged to avoid detection.
: 1425 Surfaced.
: 16 Nov. Patrolling 100 fathoms curve off BALADAC STRAIT.
: 0743 Sighted smoke bearing 140° T and maneuvered to close the range (Ship Contact No. 10).
: 0800 Sighted masts of a merchantman and an escort bearing 144° T and commenced tracking.
: 0814 - Angle on tow was now zero and we were on target's track, so dived and came to course 060° T to obtain a position where we would be between sun and the target during approach.
: 0335 Target was now showing a slight starboard angle and we seemed to be in excellent position. He was a medium size, engine aft tanker with two escorts.
: 0843 Target had zigged to the right and we were about 1500 yards from his track. Still looked good.
: 0900 Target and escorts executed a 3-flag signal hoist and with range of 7000 yards target zigged 40° to right again, placing us 5000 yards from the track. He had apparently changed his base course about 40° to the right.
: 0903 Made tules ready hoping to get on opportunity to fire if target zigged back.

ENCLOSURE (A)

— page 224 —
16 Nov. (Cont'd.)

0914 Target now had 90° angle on bow at a range of about 4000 yards. Decided not to fire at this long range, but to surface and make an end around. Target was apparently heading up PALAMAN PASSAGE along the 100 fathom curve.

1110 Target was no longer visible. He was last sighted bearing 040° T.

1114 Surfaced and started an end around, assuming target was heading up PALAMAN PASSAGE. Target was not in sight.

1147 Aircraft on SD at 12 miles (Aircraft Contact No. 7). Decided to remain on surface if aircraft did not come in. Range increased to 15 miles and pip disappeared.

1200 Position: Lat. 80-001 N Long. 116-201 E Miles - 203 Fuel - 1590

1210 Sighted several puffs of smoke bearing 052° T.

1343 Sighted two aircraft bearing 010° T at about 12 miles (Aircraft Contact No. 6). Aircraft closed to 8 miles, so submerged to avoid detection.

1422 Surface.

1500 Sighted smoke bearing 109° T.

1742 We had now come back to the 100 fathom curve and should have been ahead of target, so turned south to run back down his track. No further contact was obtained, and it is believed the target turned east to anchor for the night and to hug the coast of PALAMAN for the remainder of his passage through our area.

17 Nov. Conducted qualification school. Spent next 8 days guarding Main Channel BALABAC STRAIT.

0749 Aircraft on SD at 10 miles (Aircraft Contact No. 9). Range opened to 13 miles and pip disappeared.

1200 Position: Lat. 70-321 N Long. 116-251 E Miles - 237 Fuel - 2250

1331 Sighted aircraft bearing 170° T, distance 4 miles (Aircraft Contact No. 10). Identified as D25 Army bomber. Submerged.

1420 Surface.

- 10 -

ENCLOSURE (A)

— page 225 —
18 Nov. Conducted qualification school and fire control drill.
: 0818 Aircraft on SD at 7 miles (IRVING) (Aircraft Contact No. 11); submerged.
: 0935 Surfaced.
: 1040 Sighted aircraft similar to B24 bearing 135° T, range 8 miles (Aircraft Contact No. 12); submerged.
: 1147 Surfaced.
: 1200 Position: Lat. 70-35' N Miles - 186 Fuel - 1405
: 2333 Aircraft on SJ bearing 340° T, range 9 miles (Aircraft Contact No. 13). Range closed rapidly and bearing was steady. Submerged and before radar went under range closed to 3 miles. Night was very dark and we were making no wake.
: 2355 Surfaced.
: 19 Nov. Conducted qualification school and fire control drill.
: 0542 Submerged for daylight patrol.
: 1200 Position: Lat. 70-31' N Miles - 171 Fuel - 1130
: 1645 Surfaced.
: 20 Nov. Conducted qualification school and fire control drill.
: 0749 Aircraft on SD at 7 miles (Aircraft Contact No. 14). Submerged.
: 0900 Surfaced.
: 1200 Position: Lat. 70-31' N Miles - 226 Fuel - 1065
: 21 Nov. Conducted qualification school.
: 0829 Sighted unidentified plane bearing 280° T, range 15 miles (Aircraft Contact No. 15).
: 1200 Position: Lat. 70-37' N Miles - 236 Fuel - 1745

— page 226 —
22 Nov. Conducted qualification school.
1025 Sighted unidentified aircraft bearing 1450 T, range 8 miles (Aircraft Contact No. 16). Submerged.
1113 Surfaced.
1200 Position: Lat. 70-27.1 N Long. 116-43.3 E Miles - 224 Fuel - 1625
2325 Sighted glow on clouds vicinity. STIMA POINT (DALIAC ISLAND) LIGHT.
2327 Picked up a group of unidentifiable small pipes 'bearing 0300 T, range 5300 yards. Maneuvered to avoid. Lost 'pips at 6000 yards.
23 Nov. Conducted fire control drill.
0640 Aircraft on SD radar at 5 miles (Aircraft Contact No. 17). Submerged.
0955 Surfaced.
1200 Position: Lat. 70-45.1 N Long. 116-38.1 E Miles - 225 Fuel - 1660
2330 Saw glow of aircraft flares or searchlights against clouds and several short bursts of machine gun tracers fire from vicinity eastern side of BALIAC ISLAND.
24 Nov. Conducted qualification school.
0908 Sighted unidentifiable aircraft bearing 0850 T, range 15 miles (Aircraft Contact No. 16).
1015 Aircraft on SD at 7 miles (Aircraft Contact No. 19). Sighted plane bearing 1450 T and identified it as a B24.
1200 Position: Lat. 70-45.1 N Long. 116-35.1 E Miles - 235 Fuel - 1790
25 Nov. Conducted qualification school and fire control drill.
1030 Sighted two unidentifiable aircraft bearing 1650 T, range 10 miles (Aircraft Contact No. 20); submerged.
1112 Surfaced.

— page 227 —
25 Nov. (Cont'd.)
1200 Position: Lat. 6°-06' N
Long. 114°-58' E
Liles - 242
Fuel - 1765

20 Nov. Patrolling north of BUNKIRK NAVY.

1100 Sighted smoke bearing 100° T (Ship Contact 10.11) and changed course to close and attempt to identify target.

1015 Identified target as a large, engine aft freighter or tanker on a westerly course and started working around for a favorable attack position.

1200 Position: Lat. 5°-12' N
Long. 114°-19' E
Miles - 257
Fuel - 1695

1335 ...he had obtained a good position to dive when we sighted an aircraft patrolling in front of target group, so dived and turned to normal approach course to close target's track (aircraft Contact 10.21). Tracking showed base course to be about 240° T with target zigging from 210° to 270° T.

1410 Sighted escort bearing 160° T, range 6000 yards, heading eastward toward target group -- can't know where he came from!

1415 Sighted smoke of target group bearing 064° T.

1428 Sighted another escort bearing 062° T.

1439 Target now had 20° starboard angle on bow and range was 9000 yards. He was a large, engine aft tanker in ballast.

1456 ...angle on bow still 20° starboard, range 4500 yards. One escort was 1000 yards in front of target and other was on his starboard quarter.

1458 Target had zigged toward and were directly in front of him, so decided to come left for a 90° track with the stern tubes.

1505 Range 1000 yards, angle on bow 20° starboard.

- 13 -

— page 228 —
1506:38 Commenced firing; stern tubes with 1200 - 1400 starboard track, torpedo run 500 yards to 700 yards. Heard and saw first hit; mid-ships while checking setup before firing third and fourth torpedoes, sent to 150 feet and swung right to 100° T immediately after firing to evade escort and aircraft counter-attacks; depth of water 180 feet.

1507:10 Heard three more times; hits which were definitely torpedo explosions. The concussion wave from these hits broke all four tubes pressure gages in the after torpedo room before tube doors could be closed.

1508 Heard a series of small explosions - probably machine gun fire.

1516 First of a series of 6 depth charges, close but not damaging.

1524 Escorts had worked around to the northeast and northwest of us. He had AMP. PATCHES SHOULS southeast of us and a minefield 2 or 3 miles south of us somewhere; so reversed course and attempted to evade by running southwest.

1603 Sound had high noise level hearing 290° T so decided to come up for a look. Saw forward half of target still afloat but trimmed down by the broken end and in sinking condition. After half had sunk. Took several pictures from a range of about 2000 yards. Did not consider this remaining portion would float much longer or worth another torpedo. Saw one lifeboat with about 12 men aboard, and the two escorts milling around north and northeast of us; so started deep again.

1604 Heard first of three air bombs fairly close aboard which brought the escorts down on us again.

1649 First of a series of 11 depth charges which shook ship severely and caused extensive superficial damage (See damage listed under Paragraph K). Heard screws through hull as escort passed over-head from 150° to 320° relative.

1729 First of a series of 13 depth charges which were definitely "ON" and which shook ship severely again and caused more minor damage. Heard screws through hull as escort passed up the port side. On these two close attacks the ship was shaken like an automobile is when someone stands on the running board and jumps up and down. The motion was most unpleasant to say the least and is attributed to the facts that the charges were close and that we were at 160 feet in 160 feet of water with a mud bottom under us.

— page 229 —
26 Nov. (Cont'd.)
1730 Two more depth charges farther away.
1737 Another depth charge not close.
1748 Four depth charges not close.
1754 Three depth charges not close.
1905 Came up to periscope depth and sighted escort bearing 050° T, range 8000 yards.
2031 Surfaced 10 miles north of BARAH POINT and ran northwest at high speed.
2040 Sighted escort bearing 060° T, range 12,000 yards; coached radar on him and traced him out to 16,000 yards where we lost him.

27 Nov.
0335 Pip on radar bearing 327° T, range 12,500 yards. Turned away and commenced tracking.
0350 Tracked target on course 140° T, speed 16 knots.
0410 Allowed target to close range until he was sighted and identified as small patrol craft (Ship Contact No. 12), then pulled off target's track and let him pass clear astern. Target was heading towards ENUMBLY BAY.
0600 Submerged for trim dive.
0636 Surface.
0650 Sighted large patrol craft as it came out of rain scud bearing 068° T, range 12,000 yards, angle on bow 90° starboard (Ship Contact No. 13). Evaded to southwest at flank speed.
0705 Lookout reported periscope bearing 030° relative, range about 1000 yards (This sighting was not verified by O.O.D.). Turned left with full rudder and cived, for to avoid on the surface would have forced us to run toward escort vessel. Lanned sound gear but could hear nothing. This periscope contact is considered as very doubtful.
0918 Surface.

— page 230 —
27 Nov. (Cont'd.)
1200 Position: Lat. 60-43' N
    Long. 114-02' E
    Miles - 253
    Fuel - 3225

28 Nov. Conducted qualification school.
0832 Sighted aircraft bearing 120° T, range 20 miles (aircraft Contact No. 22).
1152 Sighted aircraft (similar to E24) bearing 070° T, range 10 miles (Aircraft Contact No. 23). Submerged.
1200 Position: Lat. 60-13' N
    Long. 116-27' E
    Miles - 210
    Fuel - 1500

29 Nov. Conducted qualification school.
1200 Position: Lat. 90-03' N
    Long. 117-01' E
    Miles - 189
    Fuel - 1150

30 Nov. Conducted qualification school and fire control drill.
0542 Submerged for daylight patrol off NORTH EASTBANK STRAIT.
0728 Sighted smoke bearing 125° T and commenced maneuvering to close the range (Ship Contact No. 14).
0803 Target was headed north and still not in sight. He must have been running very close to the shore just west of BANCALAN ISLAND.
0856 Sighted masts of target, and went to battle stations.
0933 Had been unable to close range any more and could now see only his smoke, so gave up the chase as it was impossible to follow target into shallow water in which he was running.
1015 Heard a series of 9 distant explosions which sounded like bombs or very distant depth charges. Could see nothing upon returning to periscope depth shortly afterward.
1200 Position: Lat. 80-20' N
    Long. 116-57' E
    Miles - 168
    Fuel - 745

1837 Surfaced.

1 Dec. Conducted qualification school.
0535 Surmerged for daylight patrol off main channel BANCAL STRAIT.

— page 231 —
1 Dec. (Cont'd.)
: 1200 Position: Lat. 70-30' N Miles - 145
: 1200 Long. 116-55' E Fuel - 620
: 2 Dec. Conducted qualification school.
: 0535 Submerged for daylight patrol off NORTH BALBAC STRAIT.
: 1200 Position: Lat. 80-17' N Miles - 121
: 1200 Long. 116-59' E Fuel - 560
: 1840 Surfaced.
: 3 Dec. Conducted qualification school and fire control drill.
: 0832 Submerged for daylight patrol off NORTH BALBAC STRAIT.
: 1200 Position: Lat. 80-17' N Miles - 147
: 1200 Long. 116-54' E Fuel - 770
: 1555 Surfaced.
: 4 Dec. Conducted qualification school.
: 0543 Submerged for daylight patrol off NORTH BALBAC STRAIT.
: 1200 Position: Lat. 80-21' N Miles - 125
: 1200 Long. 117-01' E Fuel - 650
: 1240 Sighted plane similar to 124 bearing 100° T, range 6 miles (aircraft Contact No. 24).
: 1907 Surface.
: 5 Dec. Conducted qualification school and fire control drill.
: 1200 Position: Lat. 60-40' N Miles - 180
: 1200 Long. 115-31' E Fuel - 1115
: 1307 Sighted aircraft bearing 340° T, range 12 miles (aircraft Contact No. 25).
: 1345 Aircraft on SD at 6 miles (aircraft Contact No. 26). Submerged.
: 1434 Surfaced.

- 17 -

ENCLOSURE (A)

— page 232 —
6 Dec. Conducted qualification school. Spent next 4 days patrolling 40-50 fathom shelf off ERUNEI BAY.

: 1200 Position: Lat. 50-50' N Kiles - 170 Long. 114-46' E Fuel - 1140

: 1500 Sighted aircraft bearing 110° T, range 20 miles (Aircraft Contact No. 27).

: 1510 Submerged when aircraft headed toward, range about 16 miles.

: 1614 Surfaced.

: 7 Dec. Conducted qualification school.

: 0928 Aircraft on SD at 5 miles (Aircraft Contact No. 28). Submerged.

: 1033 Surfaced.

: 1200 Position: Lat. 50-52' N Kiles - 157 Long. 114-46' E Fuel - 1230

: 6 Dec. Conducted fire control drill and qualification school.

: 0900 Sighted aircraft (unidentifiable) bearing 045° T, range 10 miles (Aircraft Contact No. 29). Submerged.

: 1015 Surfaced.

: 1200 Position: Lat. 50-47' N Kiles - 210 Long. 114-50' E Fuel - 1020

: 1425 Sighted unidentified aircraft bearing 160° T, 16 miles (Aircraft Contact No. 30).

: 2340 Struck large log which went under ship and bent the pitometer log sword arm, putting the pitometer log out of commission.

: 9 Dec. Conducted qualification school.

: 0020 Transmitted P.MGO Serial No. 2.

: 1200 Position: Lat. 50-35' N Kiles - 250 Long. 114-45' E Fuel - 1775

: 1525 Sighted mast bearing 109° T (Ship Contact no. 15) and commenced maneuvering to identify target through the rain squalls.

— page 233 —
1715 Identified target as small harbor patrol boat.
: 1830 Departed area enemy surface patrol.
: 10 Dec. Conducted qualification school.
: 1035 Sighted aircraft bearing 160° T, range 12 miles (Aircraft Contact No. 31). Submerged.
: 1150 Surfaced.
: 1200 Position: Lat. 40-17' N Long. 111-50' E Miles - 253 Fuel - 2390
: 11 Dec. Conducted qualification school.
: 0155 Picked up 50% TACHIL on radar bearing 225° T, range 17 miles.
: 0330 Exchanged recognition signals via radar with friendly submarine (Ship Contact No. 15).
: 0914 Sighted small sailboat bearing 105° T and avoided.
: 1007 Aircraft on SD at 6 miles (Aircraft Contact No. 32). Submerged.
: 1040 Surfaced.
: 1144 Sighted another small sailboat bearing 164° T and avoided.
: 1200 Position: Lat. 10-50' N Long. 165-10' E Miles - 290 Fuel - 4950
: 1245 Aircraft on SD at 6 miles (Aircraft Contact No. 33). Submerged.
: 1319 Surfaced.
: 12 Dec. Conducted qualification school.
: 0230 Commenced transit of 1st STRAITS.
: 0335 Pip on radar bearing 016° T, range 9000 yards; maneuvered to avoid (Ship Contact No. 16).
: 0415 Completed transit of 1st STRAITS.

- 19 -

[END OF REPORT]

— page 234 —
12 Dec. (Cont'd.)

1120 Sighted unidentified aircraft bearing 287° T, range 10 miles (Aircraft Contact No. 34). Submerged.

1200 Position: Lat. 35°-47' S
    Long. 110°-26' E
    Miles - 365
    Fuel - 4900

13 Dec. Conducted qualification school.

0045 Picked up BAYEAN ISLAND on radar bearing 164° T, range 30 miles.

0050 Picked up faint radar sweep which looked like SJ sweep bearing about 060° T. Sweep continued to draw northwestward and was assumed to be from friendly submarine which was expected to pass.

0932 Sighted aircraft (NAVIS) bearing 175° T, range 10 miles (Aircraft Contact No. 35). Submerged.

1042 Surfaced.

1200 Position: Lat. 6°-13' S
    Long. 113°-57' E
    Miles - 328
    Fuel - 3650

1232 Sighted what appeared to be a stick mast through light rain squall and submerged to close and identify.

1635 Identified stick mast as a three-pole fisherman's marker anchored so that sticks were vertical.

1639 Surfaced.

1703 Sighted GREAT MASALIMMO bearing 030° T.

1726 Sighted large sailboat and maneuvered to avoid.

2038 Pip on radar bearing 183° T, range 9700 yards. This pip was close to where sailboat was sighted at 1728 (Ship Contact No. 17). Avoided.

2320 Pip on radar bearing 161° T, range 11,000 yards. This appeared to be same pip connected at 2038. Avoided.

14 Dec. Conducted qualification school.

0342 Radar picked up sailboat again bearing 095° T, range 9300 yards.

— page 235 —
0902 S.6th. Aircraft bearing 257° T, range 15 miles (Aircraft Contact No. 36). Aircraft disappeared in southwest.

: 1129 Surfacd.

: 1200 Position: Lat. 5°-59' S, Long. 115°-46' E. Hiles - 270, Fuel - 2470

: 2220 Picked up small sailboat on radar bearing 202° T, range 4000 yards; avoided.

: 15 Dec. Underway enroute FRI. JULY.

: 0000 Commenced transit of LCI. COSTRAIT.

: 0012 Pip on radar bearing 301° T, range 9000 yards; avoided (Ship Contact No. 18).

: 0105 Pip on radar bearing 230° T, range 10,000 yards; avoided (Ship Contact No. 19).

: 0230 Completed transit of LCI. COSTRAIT.

: 1200 Position: Lat. 11°-11' S, Long. 115°-32' E. Miles - 375, Fuel - 5215

: 16 Dec. Conducted qualification school.

: 0814 Submerged for training dive.

: 0833 Surfacd.

: 1200 Position: Lat. 15°-49' S, Long. 114°-17' E. Miles - 284, Fuel - 2995

: 1320 Submerged for training dive.

: 1333 Surfacd.

: 2350 Transmitted PARCO Serial No. 3.

: 17 Dec.

: 0700 Submerge for training dive.

— page 236 —
17 Dec. (Cont'd.)
0713    Surfaced.
1200    Position:  Let.  19°-47' S
    Long.  113°-25' E
    Miles - 248
    Fuel - 2710

18 Dec.
1200    Position:  Lat.  23°-40' S
    Long.  112°-27' E
    Miles - 240
    Fuel - 3050

2145    Transmitted FALCON Serial No. 4.

19 Dec.
1200    Position:  Lat.  26°-46' S
    Long.  112°-28' E
    Miles - 192
    Fuel - 2700

20 Dec.
1200    Position:  Lat.  29°-55' S
    Long.  113°-35' E
    Miles - 205
    Fuel - 3100

21 Dec.
0700    Lacé rendezvous and proceed to PHILIPPI HARBOR, F.A.
0930    Loaded in PHILIPPI HARBOR.

— page 238 —
1. TITLE: LAT.
: 2. INITIAL: EST.COURSE: HOW CON:
: 3. DATE: LONG: TYPE(S): RANGE: SPEED: TACTICAL: REMARKS:
: 4. 0957: 200-051: FRENCH: 160 T: 14000: 10 Kts. 5D: SIGNALS:
: 5. 1930: 180-071: FRENCH: 200 T: 12000: 12 Kts. 5D: EXCHANGED REC.
: 6. 1915: 120-581: SOUTH: 10 Kts. 5D: SIGNALS:
: 7. 2101: 80-381: ENEMY: 0300 T: 0300

— page 239 —
1944-11-30 26:24:00.000: 200 NTS: R
: 7:09 N: 200 T
: 11:50 NTS: SD: Submerged
: 7:40 N: 200 T
: 11:50 NTS

— page 242 —
U.S.S. PARGO (SS-264) - Report of Sixth War Patrol.

Attack No. 1

Tubes Fired
: #6 : #5 : #4 : #3

Track Angle
: 060° : 061° : 064° : 072°

Gyro Angle
: 011° R : 006° R : 005° R : 013° R

Depth Set
: 6! : 6! : 6! : 6!

Power
: High : High : High : High

Hit or Miss
: Miss : Miss : Miss : Miss

Frratic
: No : No : No : No

Mark Torpedo
: 23 : 23 : 23 : 23

Serial No.
: 53228 : 41502 : 49481 : 49931

Mark Exploder
: 6-5 : 6-5 : 6-5 : 6-5

Serial No.
: 26380 : 26132 : 26334 : 26312

Actuation Set
: Contact : Contact : Contact : Contact

Actuation Actual
: : : : :

Mark W Head
: 16-1 : 16-1 : 16-1 : 16-1

Serial No.
: 17781 : 17831 : 17455 : 13584

Explosive
: Torpex : Torpex : Torpex : Torpex

Firing Interval
: 11 Sec. : 14 Sec. : 12 Sec.

Type Spread
: 3/4° R : 3/4° L : 2-1/2° L : 2-1/2° R

Sea Conditions
: 1 : 1 : 1 : 1

Overhaul Activity
: GRIFFIN : GRIFFIN : GRIFFIN : GRIFFIN

Remarks
: None : None : None : None

— page 245 —
1. U.S.S. PUGGO (SS264) - Report of Sixth War Patrol.

(I) MINES.

No mining or mine sweeping operations by the enemy were encountered.

(J) ATI-SUTARINA MEASURES AND EVASION TACTICS.

1. Indications of enemy's use of ship-borne radar detector were shown on a night approach on a DD and PC escort. At 6000 yards on a moonless night enemy turned toward and could not be shaken until SJ was secured. No merchant traffic was encountered at night. Traffic encountered during daylight had both surface and air escort and made use of shallow water routes close to shore whenever possible. The two single ships encountered each had two surface escorts and a bomber air escort. Escort counter-attacks at night were easily evaded, but a pair encountered during daylight with the assistance of an aircraft on 26 November proved very skillful and tenacious.

2. Vaded enemy anti-submarine vessels by going as deep as water permitted and clearing area by keeping escorts astern as much as possible.

(K) B.J.O.K. DEFECTS AND DAMAGE.

1. The following superficial damage was sustained as a result of severe depth charging:

(a) Broke colored glass on port and starboard running lights.
(b) Forward TBT was jarred 10° off in bearing.
(c) Access door to forward 20 mm platform was blown open.
(d) Numerous light bulbs were broken throughout ship.
(e) Bent elements of "A" scope, broke one 6AG7 tube, and put lashing mechanism of Sia out of commission.
(f) Port SD antenna whips.
(g) Knocked fuse out on TIC lighting.
(h) Knocked vent line off salt water circulating pump on No. 3 main engine.
(i) Jarred auxiliary engine outbc.r.d exhaust valve operating mechanism so that valve could not be opened by power or hand.
(j) Broke six thermometers on main engines and two in magazine spaces.
(k) Opened circuit breakers on both I.C. motor generators.
(l) Closed relay to General Alarm in 1 MC.
(m) Broke voice magnet coil in forward bridge speaker.
(n) No. 2 Kleinschmidt Distiller developed a small leak in the coils, rendering its product unfit for battery water.

- 31 -

ENCLOSURE (A)

— page 247 —
1. Toggle switches were placed in the (plus) 300 V.I.C. and (plus) 450 V.D.C. leads to the S.I.A. VI unit, and the primary of the high voltage generator in the VI unit so that this extra load on the regulated rectifiers could be removed when the VI was not in use; and as a result of this, very little trouble was experienced with these rectifier tubes during the patrol.

(N) SOUND CLEAR AND COLD RELAYS.

1. JCA - This unit operates satisfactorily with no materiel failures. Early in the patrol the training of the starboard scoundrel head came very noisy when trained at high speed due to brush chatter.

2. JP-1 - The F-1 gave excellent results this patrol and was extremely useful during approaches and in evading. Previously its operation has left much to be desired, but since last refit it picks up echo ranging at 14-16,000 yards and escort screws at 6-8000 yards.

3. No unusual sound conditions were noted.

(O) DENSITY JAYNES.

None observed.

(P) HEALTH, FOOD AND HEALTHABILITY.

1. In general, the health of the crew was excellent. A total of 11 man days were lost as follows:

| Days Lost |
||
| 1         |
| 4         |
| 6         |

Total: 11 days

2. Food was plentiful and well prepared.

3. The habitability of the ship was normal.

— page 248 —
1. (a) Number of men on board during patrol -- 70
   (b) Number of men qualified at start of patrol -- 47
   (c) Number of men qualified at end of patrol -- 67
   (d) Number of unqualified men making their first patrol -- 1
   (e) Number of men advanced in rating during patrol -- 6

2. Qualification school was conducted by the officers in each watch section daily except Sundays and holidays. The enthusiasm of all hands plus the fact that last patrol was short and few men had an opportunity to qualify resulted in a large number of men qualified this patrol without any reduction in standards.

3. After passing the DALY BARRIER route FRRAITIE, the watch sections were rearranged to give maximum opportunity for training the new men.

4. At battle stations and during the severe counter-attacks the officers and crew performed their duties in keeping with the highest tradition of the U.S. Navy, and it is a pleasure to sail with them.

(R) MILES STRAIT - FUEL USED.

FRRAITIE to area 1,762 miles 19,880 gals.
In area 9,198 miles 73,765 gals.
Area to FRRAITIE 1,719 miles 22,270 gals.
Totals 12,679 miles 121,915 gals.

(S) DURATION.

Days enroute to area -- 6
Days in area -- 41
Days enroute to base -- ?
Days submerged -- 11

(T) FACTORS OF DURATION.

Torpedoes Fuel Provisions Personnel Factor
15 4,000 Gals. 14 Days 14 Days

Limiting factor this patrol - operation order.

— page 250 —
1. Allied air coverage of this area has reduced the size and number of convoys available to submarine attack. Nevertheless, it is felt that the best chances of contacts are in the vicinity of Lat. 6°-20' N, Long. 117°-50' E and Lat. 5°-30' N, Long. 114°-40' E.

2. After re-rising all main engines, the famous Winton exhaust smoke was still blueish and excessive. If lowering the oil level in the engine sumps to 215 gallons, the objectionable smoking was entirely eliminated. This comment is offered as a suggestion for others who have this trouble and not as an adverse criticism of these fine engines which have delighted all hands on board by their easy maintenance and faithful performance.