U.S.S. MINGO (SS-261) — war patrol report SS-261_MINGO.pdf

— page 4 —
2 - USS MINGO (35 261)

The MINGO proceeded from Pearl Harbor to the U. S. Navy Yard, Mare Island, California, for major overhaul and modernization. Much new equipment was installed and all main engines were replaced. During the period of the overhaul, Commander Lynch was relieved by Lieutenant Commander Joseph J. Staley, Jr., U. S. Navy.

Upon completion of the overhaul, February 3, 1944, the MINGO departed for Pearl Harbor. Further training was accomplished and the vessel departed for patrol in the South China Sea under the operational control of the Commander Submarine, SEVENTH Fleet. On March 22, 1944, a casualty to a main motor put one shaft out of commission. Repairs were expedited, but almost simultaneous with the completion of repairs, a contact was made on an enemy convoy of five merchant vessels and four escorts. A night surface attack was made resulting in seven-al hits in the convoy, but proximity of escorts prevented confirmation of any damage.

During the remainder of this patrol, numerous contacts were made, but no attacks were attempted.

On departure from the patrol area, the MINGO proceeded to Brisbane, Australia, via the Bismarck Sea and Milne Bay, New Guinea.

Repairs were commenced on May 9, 1944, at the Submarine Base, Brisbane. June 10, 1944, refit was completed, and she departed for Seeadler Harbor, Manus Island, where she would undergo training. She left Manus on June 18, 1944, with Lieutenant Commander Staley, in command, for her fourth war patrol. En route to her assigned patrol station in the Philippine Islands, she recommitted Tavi-Tavi anchorage in the Sulu Archipelago with negative results. On July 7, 1944, contact was made with a high speed convoy of two ships escorted by two destroyers. A torpedo attack followed which resulted in sinking one of the destroyers, the Japanese TAMANAMI. No other attacks were made and the patrol was terminated on July 30, 1944, at Fremantle, West Australia. This patrol was considered successful and the Submarine Combat Insignia awarded.

During the refit period, Lieutenant Staley was relieved by Lieutenant Commander John R. Madison, U. S. Navy.

The MINGO departed August 27, 1944, on her fifth war patrol, which was to carry her into the Mindanao Sea and the Celebes Sea, as well as into Makassar Strait. She employed and lifeguarded duty in support of air strikes on the Philippines and Borneo.

One torpedo attack was made on two high speed minesweepers, but was unsuccessful. Later a gun attack was made on four coastal freighters all of which were sunk and nine prisoners taken on board. The climax of the patrol came when the MINGO had a privilege of rescuing sixteen U. S. Army aviators whose plans had been shot down. Six were rescued from rubber boats in Makassar Strait and the other ten were picked up from the beach at Cape Naminbaya on Celebes Island.

The patrol ended in Fremantle, West Australia, on October 13, 1944. In recognition of the damage inflicted on the enemy, and the service rendered, USS MINGO was awarded the Submarine Insignia.

— page 5 —
3 - USS MINNO (SS 261)

The sixth war patrol was conducted in the South China Sea in the areas west of Borneo and on reconnaissance duty off Fiery Cross Shoal and Camranh Bay.

A night torpedo attack on a heavily escorted convoy resulted in the sinking of a loaded tanker and damaging a gunboat which had been acting as an escort.

While on reconnaissance duty, contact reports were made on a task force of enemy capital ships, making a sortie from Camranh Bay. As a member of an impromptu wolf-pack the MINNO assisted two other submarine in successful attacks against the enemy. The patrol was ended on December 29, 1944, at which time she was awarded the Submarine Combat Insignia.

After refit, the MINNO departed for Patrol on February 6, 1945. On February 10, 1945, while in the center of a hurricane, the Officer of the Deck, Lieutenant (jg) Charles R. Cummings, Jr., USNR, and a look out, Robert J. Cutshall, quartermaster 3e, USNR, were swept from the bridge by mountainous seas. Subsequent search yielded no trace of the men and they were considered to have been lost at sea. The damage resulting from the storm necessitated return to Fremantle, West Australia for repair. All repairs were accomplished in the period of 19 February 1945. On the latter date, the MINNO departed for patrol in the South China Sea and the Gulf of Siam. No profitable contacts were made and on April 10, 1945, the MINNO's seventh and last war patrol was terminated on arrival in Saipan, Mariannas Islands. Upon departure from Saipan, a short reconnaissance was conducted off Marcus Island. On April 25, 1945, the MINNO arrived in Pearl Harbor, T. H., and received orders to proceed to the U. S. Navy Yard, Mare Island, California, for overhaul.

Overhaul was completed on August 9, 1945, and the MINNO left for the war zone. On August 14, 1945, while en route Pearl Harbor, word was received that hostilities had ceased. After a short stay at the U. S. Submarine Base, Pearl Harbor, the MINNO returned to the U. S. Navy Yard, Mare Island, California.

By Directive dated January 1947, the USS MINNO (SS 261) was to be placed out of commission, in reserve, attached to the U. S. Pacific Reserve Fleet.

* * * * *

A summary of patrol results, as credited by Task Force Commander, is listed below:

| PATROL | NO. | SUNK | TONNAGE | NO. | DAMAGED | TONNAGE | AVIATORS |
||-----|------||-----||||
| 1      | 0   | 0    | 0        | 3   | AK      | 15,993   | 0      |
| 2      | 0   | 0    | 0        | 1   | CV      | 17,150   | 0      |
| 3      | 0   | 0    | 0        | 0   | 0       | 0        | 0      |
| 4      | 1  | DD   | 1,700    | 0   | 0       | 0        | 0      |
| 5      | 4  | AK   | 900      | 0   | 0       | 0        | 16     |
| 6      | 1  | AO   | 10,000   | 1  | PG (E)   | 1,500    | 0      |
| 7      | 0   | 0    | 0        | 0   | 0       | 0        | 0      |

TOTAL: 6 12,600 5 33,743 16

— page 6 —
4 - USS MINGO (SS 261)

The USS MINGO (SS 261) earned five (5) battle stars on the Asiatic Pacific Area Service Ribbon, for participating in the following operations:

1. Star/Submarine War Patrol (Pacific) -- 25 June 1943 to 21 August 1943
2. Star/Submarine War Patrol (Pacific) -- 26 September to 20 November 1943
3. Star/Submarine War Patrol (Pacific) -- 19 June to 30 June 1944
4. Star/Submarine War Patrol (Pacific) -- 27 August to 30 October 1944
5. Star/Submarine War Patrol (Pacific) -- 8 November to 29 December 1944

STATISTICS

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

Restencliffed February 1951

— page 7 —
21 August 1943

From: Commanding Officer, U.S.S. HENON.
To: Commander in Chief, UNITED STATES FLEET.
Viz: Commander Submarine Force, PACIFIC FLEET.

Subject: U.S.S. HENON - Report of First War Patrol.

Resistance: (A) Subject Report.

1. Enclosure (A) covering the first war patrol of this vessel conducted in areas between CROTCH, ISL. MS and WESTERN GULF, and the west side of PALAU, during the period from 25 June 1943 to 21 August 1943, is forwarded herewith.

R. C. Lynch, Jr.

DECLASSIFIED-ART. 0445, OPNAVINST 5510.0C
BY OP-0987C DATE 5/21/42

DECLASSIFIED

— page 8 —
25 June 1943

1600(VT) Underway from Submarine Base, Pearl Harbor, for Johnston Island, with escort until dark, then at best 4 engine speed to get back on schedule.

26 June

Enroute Johnston Island at 19.5 knots.

27 June

0900(T) Contacted PBY air escort and stood into Johnston Island. Delivered mail, torpedoes up camouflaged, and took on 14,087 gallons of fuel.

1500(T) Departed Johnston Island for patrol area. Made training dive to be observed by PBY.

23 June-7 July

Enroute patrol area, zig-zagging during daylight, at one engine speed (12 knots). Conducted daily dives and fire control drills, fired all guns during one "Battle Surface" for training. No. 4 engine out of commission after July 5.

8 July

Passing through Caroline Islands just west of Malawihlin Bank at 15 knots.

1047(K) Radar contact 19 miles, closing, ... (Plane contact #1).

-1-

— page 9 —
1845(K) Surface, continued south at 15 knots.

2 July
Surface patrol north of Ianthe Shoal to south of Catava Island and Con- der Bank. Seas oily calm, visibility unlimited. Bright moonlight.

10 July
Still atoll north of Satawal Island. Discontinued patrol north of Ianthe Shoal and pro- ceeded on course 258° for our area. Changed course to 231°.

11 July
On course 231° at 3 engine speed; extremely smooth, calm sea, bright day, unlimited visibility. No. 1 an- gine out of commission later, because of broken rings and sheared seawater valves, only 2 engines now. Sighted smoke bearing 1870 true about 25 miles distant moving to the south east. Took a converging course 125° true and with two engines made 'end run' to gain position ahead. Bright moonlight and oily calm seas prevailed.

12 July
Out in ahead of convoy's advance and patrolled back and forth across his track at slow speed, attempting to pick him up by radar after the noon set. Picked up radar interference on the SJ, momentarily, to the south of us, indicating probable presence of a Southwest submarine. Sighted smoke to north of us; we had made too much ahead and south last night. Headed up to north east, then at - Submerged when high lookout reported seeing ship's rasts. Found we were on his southern flank and about para- llel to the convoy's course when on normal approach course, so at -

— page 10 —
0800(X)  Surface and conning tower (and gun) again to gain position ahead for late afternoon attack. Using 2 engines plus 8 cylinders of the 3rd engine. Cut in ahead and reached the convoy's track at 1545(X) when we came to course 2930 true, and headed in at full speed.

: 1519(X)  Sighted smoke dead ahead, followed shortly afterwards by masts.

: 1627(X)  Submerged and commenced approach in a classy smooth sea. Convoy zig-zagging radically in close formation, with moderate looik, escorted by small flank (similar to our FO type). Four freighter in the convoy were in two, two ship columns about 1000 yards apart. Escorts were outboard of the column about 800 yards, and continuously echo ranging.

: 1752(X)  The largest ship, identified as RYOYO KRU class Freighter, was ladling the left column and was selected as the first target. The right column leader was identified as the 5700 JANU. The second target was a six thousand ton freighter of the same size and identical in appearance to the RYOJO JANU class ship. The fourth ship was not identified, except as usual one stack freighter.

: 1753(X)  Fired three bow torpedoes at 1,000 yards, missing the port column, using conning periscope bearings on the stack of this freighter. At this time the first of the periscope was completely filled by the port of the escort between the forward edge of the bridge and the stack. The arm-waist, pointing, and running about the deck on this escort indicated that the counter-attack would begin from close aboard.

: 1757(X)  Immediately started down, so could not see the results. Heard first distant explosion right after firing six torpedo, followed by another 5 seconds later. 55 and 62 seconds later the third and fourth explosions were heard, the third slightly louder than the first two and the last very loud.

: 1757(X)  Escorts echo-ranged with the first accuracy at first, then when they lost contact one would echo range while the other sounded to drift in slowly.

— page 11 —
1805(K) U.S.S. MINO - Report of First Tar Patrol.

Subject: Second pattern of four depth charges. Started up to have a look when the PC's probably heard us using air and after a very deliberate echo ranging at -

1835(K) Five more depth charges in rapid succession. Main induction leaking slightly.

Lost depth control and settled to 374 feet with 20 degree up angle, putting the after torpedo room down to about 410 feet.

1840(K) For the next 20 minutes sound reported continuous loud crackling, heavy banging, and water rushing noises, which may have been noise from the damaged ships. Those noises draw astern as the escorts continued to "ping" and listen and run about for the next hour or so, gradually drawing away.

Slowly managed to get back to periscope depth. Nothing in sight, then at -

2055(K) Surfaced and sent contact report.

2330(K) Decoded WISUBBC, and ALBACORE3 contact report, so decided further pursuit of this convoy would carry MINO too far into South 'Gost Sub's areas.

Set course to 'Gost.

This depth charging at 1835(K) is probably the one mentioned in the ALBACORE3's contact report, as her reported position was within three miles of ours at the time.

13 July

Enroute across west of PALAU.

$1 and $4 engines still under repair. $3 engine out of commission to fix oil leaks today.

Calm seas, excellent visibility.

14 July

Enroute to PALAU western approaches via south of AUGUAR ISLAND.

Seas become rough, weather squally and strong south-west wind came up today.

15 July

Rough seas, getting worse by night fall. Approaching PALAU from southeast.

1930(I) Forward bearing on the starboard outboard main motor wiped badly because of lubrication failure.

Proceeding on one shaft in heavy southeasterly seas, on course 270°, keeping clear of AUGUAR until bearing repairs are finished tomorrow.

— page 12 —
16 July
0526(I) Submerged for the day in order to get away from rough seas and allow repairs on the starboard motor bearing to continue.
1945(I) Surfaced. Running in new bearing slowly tonight. Decided to close western side of ANGAUR ISLAND, submerged, tomorrow, then work north from there. Heavy seas, south west wind, bright moonlight.

17 July
0503(I) Closing ANGAUR ISLAND on course 090° (T). Submerged for the day. Maintained continuous periscope observations. | Closed ANGAUR ISLAND and lighthouse bearing 074° true. Came to course 060° true. As we closed the island the rough seas billowed up into heavy breakers, depth control difficult while conducting continuous periscope observations. | We broached seven times today - four times within four miles of ANGAUR. The phosphate loading dock blended in with the buildings in the No shipping present. Heavy surf threw spray high in the air near the high land on the northern art of the island.
1130(I) Slighted PELIKU ISLAND and others to north.
1513(I) Surfaced and stood off to west, then north to patrol of PALU approaches tomorrow.

18 July
0510(I) Closing PALU on course 090° on surface until - Submerged for day. Seas still very rough, making depth control difficult. Broached four times today while keeping continuous periscope search. Kept 15 miles off TOAGU NUNGUI because of rough seas and doubtful position.
1911(I) Surfaced. Overcast, squally, rain, no sights. Decided to close islands and patrol close to reef tomorrow, if seas permit.

19 July
0506(I) Closing PALU on easterly course. Stormy overcast, strong southwest winds, rough seas.
0600(I) Submerged for the day near KOSSOI TASSAC. Bottom unexpectedly at depth of 100 feet near north west tip of OOMORAN REF, damaging port sound head and shaft, while making 3 knots speed. Surfaced to clear shoal and submerged again shortly afterward to continue.

— page 14 —
1910(I) Sighted beams of low pointed searchlights to south of BASSLIKUAP, probably on the air fields of the next islands. The lights were seen twice for a few minutes duration only.

: 1924(I) Surfaced and set course 2150 true at slow speed (6 knots to save fuel), to head for new position east of HELIX REEF.

: 23 July

: Proceeding on surface, at 6 knots, using auxiliary engine to save fuel, to latitude 39-00' N. Seas now extremely calm and glassy again.

: 24 July

: Lying-to in position, flooded down in glassy sea, excellent visibility.

: 0833(I) Made a dive from lying-to, to check trim and exercise at Battle Stations. No temperature gradient to 300 feet.

: 1001(I) Surfaced. Lying-to on station.

: 25 July

: Oily calm seas, excellent visibility.

: 26 July

: Proceeding at slow speed on northwesterly course to head back for our area.

: 0634(I) Sighted smoke bearing 210 true and apparently moving eastward. 'lent ahead on a normal approach course at 19 knots until we could see his masts and stack.

: It appeared to be a single tanker.

: XO-6C runs, Deternined his base course to be 0900 true, and plotted his zig-zag plan through two complete cycles. Speed of enemy was 13.5 knots. At -1000(I) Tanker now bearing 270 true, submerged and commenced another glassy sea approach. He continued to zig-zag according to plan.

: Approached to. a position 1800 yards 20 on the starboard bow of the target on a 30' starboard track, at which time he was about due to zig left to 0600 true. Target speed 14 knots.

-7-

— page 16 —
1005(I) 1120(I) 1200(I) 1000(F) 25-30 July 31 July 1001(I)

Enroute SOROL ISLAND on north-easterly course at 6.5 knots, using auxiliary engine.

Sighted land in pariscope, which was being used to increase surface range of visibility. Headed for the island on course 103° true until it was in sight from the bridge, then submerged and approached western end of BICELINO.

— page 17 —
1900(I)  Submerged just north of BICELINO, heavy rain will prevent photography, so stood off to eastward waiting for weather to clear.
: 1200(I)  Weather cleared. Commenced observations and taking pictures, commencing at eastern end of SOROL and working westward to BICELINO.
: 1242(I)  On reaching western end of wooded section of SOROL ISLAND, we sighted a two sea-ship engine bripple, near the undergrowth on the beach on the lagoon side. The plane was pointed about north-west, and from the tilt of the wings, judged it to be a seaplane hauled up on the beach. No buildings or planes' facilities were noted. Dooided to continue to reconnaissance bombardment during evening twilight tonight to determine: (1) location of any guns on 30-30L; (2) location of searchlights, if any; (3) whether there was an active aviation unit and landing strip not seen previously; and (4) to damage observation post and probable radio.
: 1830(I)  Battle surface, with lookout tower on port bow 4000 yards, bearing 2400' true.
   - First 50 rounds 3" at observation post vicinity while radar range decreased to 3600 yards. Then shifted to the western point of SOROL ISLAND and fired 20 rounds into the vicinity of the plane.
   - No return fire, no searchlights and no aircraft activity was noted. During this period, some small lights were observed near the eastern end of SOROL ISLAND.
   - As we withdrew to the north, the higher lookouts reported what appeared to be small fires on the island. Bolivio about 15 shots fell in the observation post area, and about 8 close enough to the plane to do damage.

-10-

— page 18 —
2-3 August
: 2-5 August
: 6 August
: 1029(1)
: 1032(1)
: 1034(1)

- 1.5 August
- 1.0 August
- 1.5 August
- 2-3 August
- 2-5 August
- 6 August
- 1029(1)
- 1032(1)
- 1034(1)

-

— page 19 —
1051(I) Throughout the ship, we heard three distinct "salvos" of rain-on-the-roof noises which sounded as though the hull had been peppered with shot or beads. After which the DD came in at high speed, pinging rapidly. We renewed radically at high speed and no depth charges were dropped.

: 1115(I) Came to periscope depth to look around. The froights were 9500 yards south of us headed south, and the escort north of us 5000 yards. Continued on southerly course, hoping to close the range on the convoy. The IATA IXTU was down by the stern somewhat, but still making a speed of about 8.5 knots. Escort running slowly back and forth closed to about 4000 yards when at

: 1145(I) while making a periscope observation received three depth charges fairly close aboard. Couldn't see any vessel close, so started deep at 200 feet the fourth depth charge exploded. All these charges were heard to hit the water with a loud splash, and the explosion occurred an appreciable time later.

Remained deep to avoid the probable air coverage now present and finally worked away from the DD's echo range.

: 1600(I) Surfaced. Shortage of fuel prevented chasing this convoy in a direction away from our route to [LIFTAY]. Headed north for traffic for all point estimated to be at 15° North and 135° East to be there by dawn. Did not send contact report in hopes that it tomorrow's traffic still might not be diverted from this spot.

7 August

On station searching until noon, then set course for [LIFTAY], speed 11 knots. Sent message reporting yesterday's attack.

Had considerable difficulty sending this message. It took over 4 hours on two different frequencies.

8 August

: 0920(I) Sighted smoke apparently headed north, so took normal approach course until meets were sighted, then at -

: 0541(I) Submerged. Tanks attempt to close at high speed (Contact 5).

: 0916(I) Surfaced with smoke dead ahead bearing 045° true. Commenced trialing at 12 knots when bearing changed radically to westward and shortly afterward meets and superstructures of six travel type xitrol vessels came above the horizon rapidly. Remained on surface and opened range slightly by heading east while we observed the hunt with periscope.

-12-

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

They patrolled back and forth and gradually moved northward. This outfit was exactly on our sunrise position when sighted, indicating that we had been pretty well out in with last night's 4-hour transmission and the previous day's contact.

2. August

Noticed radar interference on 3D - possible plane.

10 August

0430(I) Sighted ACINHAT ISLAND, 26 miles distant.
0515(I) Submerged to approach AGINHAT. Strong current experienced north of island, which kept us in the vicinity all day.

1948(I) Surfaced nine miles north of AGINHAT, on route INDY, one engine speed (12 knots).

11-17 August

Enroute INDY, Calm seas, excellent weather. Crossed 180th meridian, repeating 17 August.

17 August

7(Y) Sighted escorting planes and proceeded to INDY. Hooded at submarine docks, INDY. Fuel on hand 2015 gallons. Received 39,697 gallons. Unloaded eight torpedoes.

1530(Y) Undorway for PURL HARBOR.

13-20 August

Enroute INDY to PURL HARBOR. During forerunner of 19 August sighted PBY patrol plane several times, flying about five thousand feet high. The plane did not answer our recognition signals, but made two nonleading approaches from up "ind, ahead and out of the sun, passing directly over us. Used recognition flares on each occasion.

21 August

0534 Made rendezvous with escort, arrived PURL HARBOR.

— page 24 —
1. U.S.S. MYNO 2. TORPEDO ATTACK NO. 1 3. PATROL NO. 1 4. Time 0752 Z  Date 12 July 1943 1. Lat. 1000' N.  Long. 142°59' S. 1752(K)  TARGET DATA - DAMAGE INFLICTED
Description - Convoy - 4 freighters and 2 PC escorts, KYOTO YARU and similar type. Sighted smoke. Visibility excellent.
Ship(s) sunk - ---
Ship(s) Damaged or Probably Sunk - Two KYOTO YARU class freighters, six thousand tons each.
Damage Determined by - Sound and hearing torpedoes hit.
Target Draft 20 Course 1700 & Speed 8.3 Range 2150 & 1200 1450
OWN SHIP DATA
Speed 3 Course 040° Depth 64' Angle 0
FIRZ CONTROL AND TORPEDO DATA
Type Attack - Periscope attack in glassy smooth sea. Used continuous bearings from periscope just before and during firing. Fired spread of 3 torpedoes at each target.

17.

— page 25 —
12 July 1943
(date)

Tubes Fired #_1 #_2 #_3 #_4 #_5 #_6

Track Angle - }
    Sea Summary Sheet

Gyro Angle - }

Depth Set    15    15    15    15    15    15
Power       High  High  High  High  High  High
Hit or Miss Hit  Hit  Miss  Hit  Hit  Hit
Erratic   No  No  No  No  No  No
Mark Torpedo 14-3A 14-3A 14-3A 14-3A 14-3A 14-3A
Serial No.  23388 20172 23663 23664 23977 23976
Ltr. Exploder 6-1  6-1  6-1  6-1  6-1  6-1
Serial No.  6458  1096  9649  6219  6252  10080
Actuation Set  -  -  Contact  -  -  -  -
Actuation Actual -  -  -  -  -  -  -
NC. 'Verhead  16  16  16  16  16  16
Serial No.  5795  10397 5331  5186  2460  2473
Explosive   TFX  TFX  TNT  TNT  TFX  TFX
Firing Interval -  8 Seconds  -  -  -  -  -  -
Type Spread  -  -  Divergent  -  -  -  -  -
Sea Conditions  01ly CcIm - No Swell
Overhaul Activity  S/M Base, Pearl Harbor, T. E.

Remarks -

— page 26 —
2 PATROL NO. __1__

Time 0204 Z Date 26 July 1943 Lat. 2044' N. Long. 134°27' E.

TARGET DATA - DATABASE INFLICTED

Description - Single tanker ahead of escorted transport, GUNYO IARU class tanker; trawler type escort; KENYO IARU type trawler. Attacked tanker. Sighted smoke. Visibility excellent.

Ship(s) Sunk ---

Ship(s) Damaged or Probably Sunk ---

Damage Determined by ---

Target Draft less than Course 105° Speed 14 Range 800 15 ft.

OWN SHIP DATA

Speed 3 Course 285° Depth 64° Angle 0

FIRE CONTROL AND TOPPED DATA

Type Attack - Periscope, using continuous bearings at time of firing. "Down the Alley" shot, zero track, zero bearing, zero gyro angle, torpedo run 800 yards, diminishing to 650 yards. Torpedoes ran under target.

— page 27 —
26 July 1943
(date): [date]

Tubes Pired
Track Angle -
Gyro Angle -

See Summary Sheet

Depth Set
15
15
15
15
High
High
High
High
Hit or Miss

— page 28 —
3 PATROL NO. 1
Time 0129 Z
Date 6 August 1943
Lat. 13249' N.
Long. 133015' E.

TARGET DATA - DATAG TITLITD
Description -
Convoy - 3 firefighters, 1 destroyer
("AKATAKE class). Attacked one MUTO IARU
class and one IAYA IARU class. Sighted
smoke. Excellent visibility.

Ship(s) Sunk -
Ship(s) Damaged or
Frobably Sunk -

Damage Determined by -
Target Draft 18 & 15. Course 170° Speed 7.8 Range 1470

ON SHIP DATA
Speed 3 Course 060° Depth 64' Angle 0

FIRST CONTROL AND TORPEDO DATA
Ty's Attack
Periscope, using continuous periscope
bearings for firing. First three torpedoes at larger target and one at
smaller freighter. Very minor explosions, indicating four probable duds.

— page 29 —
6 August 1943
(date): 7 # 8 # 9 # 10 # #

See Summary Sheet

Tubes Fired
- Track Angle -:
  - Gyro Angle -:
    - Depth Set
      - 8
      - High
      - Hit or Miss
      - Erratic
      - Mark Torpedo
      - Serial No.
      - Mark Exploder
      - Serial No.
      - Actuation Set
      - Actuation Actual
      - Mark Warhead
      - Serial No.
      - Explosive
      - Firing Interval
      - Type Spread
      - Sea Conditions
      - Overhaul Activity
      - Remarks -

: 8
: 8
: High
: Hit
: No
: 14-3A

— page 30 —
1. MINGO
U.S.S. 1. PATROL NO. 1
Time 1830 (I) Date 1 August 1943 Lat. 8908' N. Long. 140°25' E. 0830 Z

TARGET DATA - DAMAGE INFLICTED
Sunk --- Reconnaissance bombardment.

Damaged or
Probably Sunk
Possible damage to lookout tower, to buildings in vicinity of lookout tower, to one aircraft on beach and to structures in vicinity of aircraft.

Damage Deter-mined by
Shots observed hitting in the target areas.

DETAILS OF ACTION
During the last part of evening twilight we Battle Surfaced about 4000 yards from the northern side of SOROL ISLAND. Opened fire with the 3" gun one minute after the surface alarm and fired 50 rounds into the middle of the island, using the lookout tower as a point of aim. Numerous hits (15-20) were observed in the immediate vicinity of the lookout tower.

The point of aim was then shifted to the western edge of wooden part of SOROL ISLAND. Pretty rounds of 3" were fired with this point of aim, at least ten rounds falling in the target area, which was known to contain one aircraft and possibly more.

There was no return fire during the attack. The 20M guns and the .50 caliber MG's were kept manned but did not fire. The 3" gun operated in a satisfactory manner, expanding seventy rounds of ammunition in twelve minutes.

— page 31 —
1. MILES
No data.

(2) ANTI-SUBLIME TASKS AND VASATION TACTICS
See narrative for dates 12 July, 26 July and 6 August.

(3) MAJOR DEFECTS AND DAMAGE
MAIN ENGINES:
5 July
No. 4 main engine out of commission because of damaged gear train caused by bell bearing retaining ring on after bearing of upper blower idler gear carrying away and falling into lower gears. Three partially broken teeth on lower blower idler gear. All gears removed, crossed down, and replaced; interchanging the idler gears. Engine back in commission on 14 July 1943. Engine hours since gear alteration 666.

11 July
No. 1 main engine out of commission because of broken piston rings and sheared scavenging air valve pin. Inspection revealed necessity for removal of all piston rings. Engine hours 1080. Back in commission 21 July 1943.

16 August
No. 4 main engine out of commission because of broken piston rings. Reworked rings in one unit. Engine hours 895.

Numerous short shut-down periods because of small lubricating end fuel oil line failures, and because of cotton yarn fuel filter routine removals. Fuel filters should be installed in accordance to allow shifting without securing the engine.

HAUL MOTORS:
15 July
No. 3 main motor forward bearing burned out due to lubricating oil failure, causing starboard shaft to be out of commission until 16 July, a period of 20 hours. Lubricating oil failure caused by propulsor, which was retained by Bushpish Machinery Change No. 19, and which was originally installed as temporary measure during trials only.

— page 32 —
U.S.S. MINO - Report of First War Patrol.

PTI LOG:
Source of constant annoyance, with frequent failures and need for adjustment because of its delicate mechanism.

PARISCOPES:
New type self-aligning yokes cock and bind the porisopees in train, frequently rocuriring adjustment.

Drain pan on parisopees should be deeper and made to drain fore and aft, instead of on strtoberd side only.

MIN INDUCTION PIRING:
After depth charging on 12 July, hand hole plate in main induction looked small streon of water around the gasket.

AIR TANKFOLD:
Bow buoyancy blow valve leaked constantly in spite of repoatd attempts to grind it in. The blow valve was closed tightly and not used.

TORPEDO TUBES:
Outer door, No. 4 tube jammed closed since before 26 July 1943.

(L) RADIO
Radio reception was satisfactory. Considerable difficulty was experienced in clearing our messages on 26 July and 7 August. Our 269521 was finally cleared thru WID and our 071194 was cleared thru WIF. No soricls wore missed.

(K) RADAR
In gonoral, radar had continuous series of minor failures, requiring almost daily repairs. The range tank locked through the rubber grommet around the control shaft. . . stuffing box was made to replace the grommet, which could not be tightened. Since no fluid was provided in spare parts, the lost fluid was replaced by distilled water. There should be some positive means of measuring the overall gain of the receiver to determine when the equipment is operating correctly.

Obtained maximum range of 27,000 yards on AGIHN ISLAND and 7,600 yards on SHOL ISLAND. No other contacts were made on this ship.

— page 33 —
1. SUBJECT: U.S.S. HENRY - Report of First War Patrol.

The SD radar worked satisfactorily. The only contact was made at 19 miles.

(N) SOUND GEAR AND SOUND CONDITIONS

Sound conditions were excellent in vicinity of latitude 1°46' north, longitude 135°14' east. Targets were picked up at 11,000 and 19,000 yards.

(O) DENSITY LAYERS

Density layers were encountered as follows:

18 July - Lat. 7°54' N. - Long. 134°27' E.
13 August - Lat. 22°25' N. - Long. 158°23' E.
Depth - 150 feet.

(P) HEALTH, FOOD, AND HABITABILITY

Food, health, and habitability were normal for this length cruise in tropical waters. Numerous colds at start of patrol wore all gone in two weeks.

(Q) PERSONNEL

The performance of duty by both officers and non-conformed with the usual high standards of submarine personnel. The spirit and morale of the crew was excellent throughout a somewhat long, tedious patrol.

(R) HILES STAMED - FUEL USED

| Item | Quantity |
|------||
| PARL HARBOR to area | 4241 mi. | 43,769 gals. |
| In areas | 4164 mi. | 28,533 gals. |
| Area to PARL HARBOR | 4358 mi. | 54,589 gals. |

Totals 12,763 mi. 126,891 gals.

Fueled at JOHNSON ISLAND westbound - 14,038 gals.
Fueled at IDAY ISLAND eastbound - 39,697 gals.

(S) DURATION

Days enroute to area - 15
Days in areas - 27
Days enroute to base - 16
Days submerged - 10

26

— page 34 —
2015 gal. (On arrival MIDAY)
Torpedoes
10
Fuol
2015 gal.
25 days
25 days
(Limiting factor this patrol - Fuel oil)

— page 35 —
1001(I) Sighted land in the periscope, which was being used to increase the surface range of visibility. Headed for the island on course 103° true until it was in sight from the bridge, then submerged and approached western end of BICELIMOL. Proceeded along southern side of the islands, taking pictures and making observations from various bearings.

From the south BICELIMOL has no outward evidence of any improvements. No evidence of any inhabitants was seen until SOROL ISLID was examined closely. The most prominent object on SOROL is a lookout tower, which may possibly support a water tank. The lookout tower was a square trostile, probably constructed of wood, with an enclosure near the top which might be a tank. In the immediate vicinity of the tower there are two bay pike stands and a small group of rocks. At the water tower and the lookout section of SOROL there is a small red structure, which is visible from the south side only.

No boats, canoes, huts or other signs of a native population were observed. Nothing was sighted in the lagoon.

At approximately the center of BICELIMOL there is a prominent point two which extends above all other trees on this island.

Surfaced near BICELIMOL and stood off to the west and north in order to make observations and take pictures from the northern side of the islands tomorrow. A strong southerly set was experienced off the western end of BICELIMOL.

1. AUGUST

0455(I) Submerged just north of BICELIMOL. Heavy rain prevented photography, so stood off to eastward, waiting for the rain to stop.

1200(I) Weather cleared sufficiently for photography, so commenced taking pictures and making observations at eastern end of SOROL and slowly worked westward toward BICELIMOL. The lookout platform and rests are plainly visible from this side of the islands also, but green shack huts or clearings in the undergrowth could be soon from the north side of the island.

— page 36 —
1830(1)  The offshore roof alone the northern side of the islands extends above water and is clearly visible. The roof extending westward from ENELLIML is generally above water and has a sand hill which appears to remain dry at high water.

The signs of habitation were observed on BICILOR, R.L.M.DID, NICHILOR, or BICILIML ISLADS.

The small sand islands in the vicinity of R.L.M.DID are noother joined together not to COOL.

On reaching the western end of SORIL we sighted a two-socket, single engine ship on the north bank on the lagoon side, just inside the range of the wrecked area. This plane appeared to be a zeppelin (type A.V.), hauled out on the beach on the lagoon side. The small red object noted from this south side was in this sea vicinity. No buildings or plane servicing facilities were noted.

Battle surface to conduct reconnaissance bombardment. Fire fifty rounds at 1000 yards and twenty rounds in the general locality of the A.V. sighted on the beach.

The bombardments drove no return fire. No searchlights were noted, and it is believed that no active eviction establishment exists, as no aircraft opposition was encountered.

Small lights were soon seen over the eastern end of SORIL during the bombardment, possibly signal lights or flashlight lights.

The information contained in CDR-Ly is correct; H.O. chart No. 5426 appears to be correct and is suitable for piloting near this islands.

The weather was hot, humid, and generally oppressive, with the usual tropical rain squalls and nights.

On hundred thirty-five picnics wore taken with periscope camera. True bearing and number of each exposure follows on separate sheets.

— page 37 —
1. The Commander Submarine Division ONE TENTY T.O.
To: The Commander-in-Chief, United States Fleet.
Via: (1) The Commander Submarine Squadron TWELVE.
(2) The Commander Submarine Force, Pacific Fleet.
(3) The Commander-in-Chief, U.S. Pacific Fleet.

Subject: U.S.S. HINGO (SS261) - Report of First War Patrol - comment on.

1. Forwarded. This first patrol occupied a period of 57 days of which 35 were spent in operating areas or in waters controlled by the Japanese. Ten days were spent submerged.

2. There were five contacts totalling eight freighters, three escort vessels, one destroyer, one tanker, seven small patrol vessels. There were only two airplane contacts (one of HANG and one sighting of a plane on the beach at SOU. Island.

3. Torpedo attacks were 2-3-1-

— page 38 —
35-12N/AL6-3
Serial 039
CONFIDENTIAL

FIRST ADDRESS: 24, August 1943.
U.S.S. HINGO First War Patrol.

Subject: U.S.S. HINGO (SS261) - Report of First War Patrol - comment on.

7. The fuel carbassament is noted. The Commanding Officer states that his thinks it would be most helpful if ships patrolling this RAILWAY area could be permitted to go to DARIN or MILWAJAY for fuel prior to their return. It is thought that this idea has considerable merit.

8. The Division Commander congratulates the Commanding Officer, Officers and Crew on inflicting damage which is believed to be as follows:

DAUGHED
2 Freighters (RYOY IANU Class) 12,000 tons.

F.B. A.D.R.

— page 42 —
52161/16-3
Serial No. _021

DECLASSIFIED AT: 29 November 1943

Front: The Consulting Officer, U.S. Navy.
To: Commander-in-Chief, UNITED STATES PACIFIC FLEET.
Via: Commander Submar in Force, PATROL UNIT.

Subject: U.S. Navy, Report of Second War Patrol.

Enc. source: (A) Subject Report.

1. Transcribe (A) covering the actual War Patrol of this vessel conducted in POLARIS, TULIP, and SEWARD-GULF areas, during the period from 29 September 1943 to 20 November 1943, is forwarded herewith.

R. C. LYONS, Jr.

DECLASSIFIED DAT. 0445, OPENWINST 5510.1C

DECLASSIFIED

62117

— page 44 —
1755 (H)    Surfaced.
: 1850 (H)    Radar contact at 18.5 miles, closed to 15 miles, then opened again to 18 miles. Did not see plane. Continued on surface. (Plane contact #3)

7 October
Calm seas, bright moonlight, excellent visibility. Enroute north of Marshalls.

8 October
Turned south to close ENTEROTK ATOL.
Submerged.
Sighted ENTEROTK, closed in to 3 miles east of island. No shipping in the lagoon, and no activity was noticed. Trestle-like wooden lookout tower visible pro- jecting above the trees. Took some pictures.
Surfaced. Continued south toward KUSAIL.

9 October
Surface patrol. Headed south just west of KUSAIL. Flat calm seas. Bright moonlight.

10 October
Surface patrol between KUSAIL and PINGILAP, then north between PINGILAP and MOKIL ISLANDS. Flat calm seas. No wind.
Headed for PONAEA after dark.

11 October
0300 (L)    Sighted PONAEA ISLAND in moonlight.
0527 (L)    Submerged. Closed PONAEA. Noted two towns with considerable smoke from shore activities. No shipping observed. Seas oily calm.
1915 (L)    Surfaced. Stood off to northwest towards TUK area. PONAEA blackout was absolute.

12 October
Surface patrol enroute area 15 north.

13 October
In vicinity of HALL ISLANDS, eastern side. Submerged and closed eastern side of MUKIL ISLAND. Saw no activity on these islands. Patrolled this turn- ing point all day.

— page 45 —
1930(L)  Sea extremely calm and very clear.  '14th 6 feet of periscope exposed, it was possible to see the wood deck slats, marker buoy location, hatchway to torpedo room and the life lines forward, all too clearly!
: 1300(L)  Surfaced.  Patrolled northwest along the approaches, then west to patrol in vicinity of EAST PAYU.

14 October

: 0306(L)  Plane contact on radar, 8 miles closing. (14)  Submerged to avoid detection by moonlight patrol.
: 0409(L)  Surfaced.
: 0559(L)  Submerged to patrol northwest approaches to TRUK.
: 1200(L)  Sighted small Jap observation plane or Zero fighter headed north (plane contact #5).
: 1245 to 1545(L)  Echo ranging from patrol craft in vicinity cruising back and forth.
: 1940(L)  Surfaced.  Patrol vicinity of EAST PAYU.  Bright moonlight.  Flat calm seas.

15 October

: 0604(L)  Submerged to patrol between EAST PAYU and HALL ISLANDS.
: 0950(L)  Sighted small Jap single float observation seaplane on ant-submarine patrol, course northwest.  (Plane contact #6)
: 1030(L)  Sighted Jap float type Zero fighter, headed in our direction.  (Plane contact #7)  'cent to 200 feet for 40 minutes.
: 1300(L)  Echo ranging from patrol vessels in vicinity continued for some time, but could not see them.
: 1937(L)  Surfaced about 7 miles from EAST PAYU.  Sighted large searchlight in direction of island, which swept back and forth in our direction several times when out.  Indicates possibility of our being picked up by surface radar on surfacing.
: 1700(L)  Stood off to the north to search for northbound traffic.

16 October

: 1700(L)  Surface patrol on northerly course.  Came to south-westerly course at 0800 and patrolled vicinity of latitiude 114-00' N., longitude 151-20' E.  Moderate seas; many heavy rain squalls; visibility not too good.
: 1700(L)  Sighted masts bearing 1110 true, in squall area, and approaching rapidly.  (Ship contact #3)
:  Submerged and commenced approach on normal approach course at high speed.

— page 48 —
1733(L) 1940(L) 2244(L) 2316(L) 2340(L) 2347(L) 001(L) 0118(L) 0557(L)

**Subject:**
U.S.S. M.I.E.O. - Report of Second Year Patrol.

It now was apparent that the convoy was headed southeast to pass south of PULAP. Planned to intercept them east of PULAP after dark for radar attack. Broke off approach and headed south to begin chase.

Surfaced. Proceeding east at 17.5 knots, passing north of PULAP, which was in sight.

Commenced retiring search course to south. Black night, heavy rain squalls with many rain squall "pips" on the radar.

Radar contact 13,400 yards, 20° on port bow (wrong bow). Changed course to 100° true to chase target, whose bearing was changing towards the east.

Sighted ship bearing 170° true, range by radar 10,900 yards. Continued eastward at 17.5 knots to get ahead of convoy. Convoy speed 9 knots, zig-zagging radially.

Sighted the small escort-leading the other ships, as the convoy zigged towards us, coming to course 65° true. Relative bearing of ships was now 160° with range slowly opening.

Radar range 10,600 yards with targets close on quarter. We were a bout to submerge to radar depth, when the tanker opened fire on us with two guns.

Submerged immediately to continue approach at radar depth on the channel the ship was 60 miles from the coast. Sound picked up targets immediately on sonar, however, plot showed targets had altered course to north, and at.

Lost the target group on radar at 11,500 yards. No crews could be heard. Continued northward at radar depth. Black night, could see nothing with periscope. Escort in vicinity echo ranging.

It was apparent that in spite of the dark, cloudy night the convoy had detected or sighted us at 10,000 yards well enough to warrant clearing the area.

**21 October**

0001(L) Escort fired two shots (exit route to be 3-inch) which were heard to hit, travel through the water an instant, then explode. Those were fairly close at approximately fired at our shores so, we were deeper to get the radar mast cut of sight. Gradually lost the escort and also ranging and at.

0118(L) Surfaced. Headed northwest then north to attempt to regain contact, without success. Most came out later, very bright and clear.

0557(L) Submerged for patrol across northwest approaches to TRUTH.

— page 49 —
1944 (L) SURFACED, HEADED NORTH BETWEEN TASF FAYU and NANONUTO ISLANDS.

22 October

Proceeding to northern part of area to position of departure. Surface patrol. Heavy radar interference on SD in vicinity of TASF FAYU and NANONUTO ISLANDS.

23 October

Surface patrol, enroute GUAM-SAIPAN area.

24 October

Surface patrol southeast of SAIPAN, about 40 miles, on SAIPAN-TRUK route. Sighted two planes in/distance, submerged to avoid detection. (Plane contact #10)

1026(K) SURFACED.
1356(K) Radar plane contact 10 miles closing. Submerged. (Plane contact #11)

1508(K) SURFACED.
1733(K) Sighted SAIPAN 32 miles, 2900 true.

25 October

Rounding SAIPAN to the north to patrol near TAVAPAG harbor.

0515(K) Submerged 20 miles west of SAIPAN harbor; headed east. Patrol led 4 miles off shoal water near aircraft operations.

1154(K) Sighted observation plane circling and landing in TAVAPAG harbor (Plane contact #12.)

1420(K) Sighted 4 bombers in close formation 3 miles away, approaching from atorn. Two were on course. On returning to periscope depth, saw two of them circling over TAVAPAG, where they eventually landed. (Plane contact #13.)

1612(K) Sighted large flying boat, which circled and landed in TAVAPAG harbor. (Plane contact #14.)

1840(K) "Then just about to surface, sound picked up regrads crews close aboard, hearing 2-15-

— page 50 —
26 October
0517(K) 0745(K) 1114(K) 1901(K) 2155(K) 1600(K) 1608(K) 1643(K) 1903(K) 1904(K)

: 28 October
0523(K)

— page 52 —
0703(K) 0830(K) 0827(K) 0819(K) 1015(K) 1910(K)

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

Believe those were from a shore battery firing on a radar contact to keep us down off shore.

Sighted sampan type sub chaser headed north from PORT ARZA, about 4 miles off. Speed 9 knots.

Sighted medium sized transport (Ship contact #14), escorted by two travelers and one large sampan sub chaser, on course 2300 true, range 8000 yards, speed 12 knots. He was only four miles from harbor entrance and came on the bow was larva.

Headed for harbor entrance and made high speed while preparing for long range shot.

Range down to 7400 yards, but decided he would swing into harbor before torpedoes could get there. Three minutes later he turned into harbor without slowing down.

Just before entering the harbor the escorting force was augmented by an additional two sampans at 0849.

And later at 0819 another sampan was seen near 0600.

The six anti-sub patrol vessels patrolled back and forth across the entrance and near the reef as this transport proceeded to the far eastern part of the harbor.

Then the travelers entered the harbor while the sampans continued waterfilling.

A small seaplane (Plane contact #20) was sighted circling over the patrol craft.

This transport managed to get into the harbor very quickly, under considerable protection.

Turned to westward to keep clear of sampans.

"this at periscope deck and a short interval after an observation, a medium sized bomb exploded close aboard. (Plane contact #21) He did not see the plane. "sent deep and changed course, speeding up for a half hour, than returned to periscope depth to watch for inevitable traveler search.

Sighted traveler standing out of harbor, heading west for the position of the bombing. "to continue to withdraw on southwestly courses. "later was crystal clear and day was bright and sunny, so the plane probably had no trouble seeing us at periscope depth.

Decided transport would remain several days if unloading; if not, she would leave in the morning for southeast, Flamed surface patrol southeast of CHU. To narrow to intercept ship if she leaves, and also to allow the immediate vicinity of harbor to cool off.

Surfaced, boomlight, excellent visibility.

31 October

Surface patrol on CHU-2-RUK route 40 miles southeast of CHUK.

-10-

— page 54 —
1154(K) Sighted large patrol plane over SULTAN CHANEL. He landed a few minutes later in TANAHAG area. (Plane contact #22)
: 1225(K) Sighted another patrol bomber flying boat (Plane contact #23), which also landed near SALAN.
: 1900(K) Surfaced southeast of TANAHAG about 15 miles. Headed off to south then turned to pass between MORA and TANAHAG. Bright moonlight, excellent visibility.
: 2150(K) Picked up small craft contact and immediately after sighted a PC boat class patrol vessel on southerly course, 200 on our starboard bow, 8000 yards, making 4 to 6 knots. Turned away to east to lose hit.
As before on 26 October when we surfaced too close to the island and attempted to ease between them, the patrol vessel seemed to be spotted in to intercept us fairly accurately. The SD radar was in use because of the bright moonlight.
Continued east until moonset, then headed back west, this time much closer to MORA.

5 November
: 1653(K) Surface patrol, heading to western half of area at slow speed to conserve fuel.
: 1731(K) Submerged to check trim and get Bathymetrograph card.
: 2218(K) Surfaced.
: 0756(K) Sighted PC boat patrol vessel on port bow about 1 miles in bright moonlight. Could not get him on the radar. He was also heading west and possibly searching the area for submarines, as the SCORPION, to the north of us, had sent some messages earlier, reporting a contact with a MORA class cruiser.
Avoided by heading northeast, then worked back to the west by daylight.

6 November
: 0756(K) Surface patrol on expected track of SCORPION's MORA cruiser contact.
: 1750(K) Sighted mast with 1 per riscope, bearing 0450 true, about 15 miles off. (Ship contact #19) Came to normal approach course and started in at high speed. Submerged when bridge sighted mast and stack. Angle on the bow estimated at 500 starboard, enemy course 1700 true, speed 19 knots. Continued at high speed submerged, but range was never lower than 20,000 yards, only very tops of masts were now in sight. The enemy was not zig-zagging.

— page 55 —
1030, 1014(K), 1321(K), 1450(K), 1626(K), 8 November, 0556(K), 0653(K), 9-15 November, 16 November, 16 November, 0633(Y), 1000(Y), 1500(Y)

-13-

— page 56 —
17-18 November
Enroute 1DAY to PEARL HARBOR.

19 November
1329(1) Sighted unidentified tanker, which later proved to have sub chaser escort, Sent contact message and received identifying reply later.
Rough seas, reducing our speed made good about 4 knots.

20 November
0800 Fell in with 50 1273 - escort to PEARL HARBOR.
1522 Under Submarine Base, Pearl Harbor.

— page 62 —
16 October 1943
(date)

Tubes Tired 1 2 3 4 5 6
Track Angle 120° 120° 120° 120° 120° 120° 120°
Cyro Angle 0° 0° 0° 0° 0° 0°
Depth Set 10' 10' 10' 10' 10' 10'
Power Low Low Low Low Low Low
Hit or Miss Hit Hit Miss Miss Miss
Artratio No No No No No No
Mark Torpedo XIV-3A XIV-3A XIV-3A XIV-3A XIV-3A
Serial Number 24935 23770 25440 24554 25680 39151
Mark Xploder 6-1 6-1 6-1 6-1 6-1 6-1
Serial Number 7169 7071 7053 6342 11423 6872
Actuation Set Contact Contact Contact Contact Contact Contact
Actuation Actual None Contact Contact None None
Mark 'Arhed 16 16 16 16 16 16
Serial Number 1787 2650 877 1737 1607 1841
Explosivo TXT TXT TXT TXT TXT
Firing Interval 85 85 85 85 85 85
Tyro Spread Long. Long. Long. Long. Long. Long.
Sea Conditions Iod. Iod. Iod. Iod. Iod. Iod.
Overhaul Activity - Submarine Bases, Pearl Harbor, T. H.
Remarks -

- 21 -

— page 63 —
1
Time and Date, G.C.T. 0656, 16 October 1943
Position 1st. 11°-03' N. Long. 151°-23' E.
No. and Type Torpedoes 6 - Mk. 14, 1nd. 3-A
Kits 2
No. Sunk Tons -----
No. Damaged Tons 22,500
Target, type of CV
Range 6500 (Torpedo Run)
Type of Attack Pariscopa
Bst. Dret of Target 25
Depth Setting 10
Bow or Storn Shot Bow
Track Angle 120° 2'0''
Gyro Angle 0°
Target Speed 19 Knots
Firing Interval
Spread - Kind Longitudinal
Torpedo Performance Satisfactory? Yes
Remarks:
Torpedoes which did not hit were heard running by the target, for total time of over nine minutes.

— page 68 —
U.S.S. HERO - Report of Second Year Patrol.

(R)  MILITARY STATUS - FULL USED
Pearl Harbor to Area 2769 miles - 31,127 Gals.
In area 5668 miles - 47,856 Gals.
Area to Pearl Harbor 3501 miles - 41,076 Gals.

TOTAL 11,938 miles - 120,061 Gals.

Received 11,634 Gals. - Johnston Island, westbound.
Received 30,433 Gals. - Kodiak, eastbound.

(S)  DURATION
Days around to area - 9
Days in area - 30
Days around to Pearl Harbor - 14
Days submerged - 13

(T)  RATIO OF DURATION REMAINING
TORPEDOES  WALL (Calls.)  CAPACITY  TRANSMITTER  RECEIVER
18 3355 (on 21 days) 21 days
arrival (MILITARY)

Limiting factor this patrol: Terminated by Operation Order and fuel.

(U)  ENLIST
Photograph in ORI 49, plate XI is labeled incorrectly, in that H.CARON BOMB, ROTA, is actually at the extreme right edge of the picture.
Thoroi is nothing in SOGNATA BAY, ROTA, to substantiate this report.
No anti-submarine nets are in use at ROTA.
In ROTA harbor, OWL, the types currently have made a mooring alongside the roof just to the west of "Holo in the "tall."
Two medium size ships were moored there closely off the other, on heading 2030 true (storms toward "Holo in the "tall.") No this ship are completely protected by roofs and COT. ROTA. No not is used across the harbor entrances. No harbor facilities are noticeable west of Middle Ground.
Near S.N. LUIIS POINT, CUL. are five prominent oil tanks, 3 white ones, and 2 rusty iron, just east of those is a smaller tank. All tanks have spiral ladders up the side.
ROTA harbor could be rendered useless by use of a slow speed torpedo mine fitted with a distance device, and suitable arming delays and firing mechanisms.

- 27 -

— page 69 —
35-12N/16-3
Serial 062
Date: 24 November 1943

NRT: 1st Patrol to U.S.S. 1st Second
at Patrol.

Date: 1st Patrol covered a period of 52 days; 25 days were spent in the assigned patrol areas.

2. Numerous enemy ship contacts were made. However, only four of these were north while torpedo targets while the majority consisted of patrol boats, trawlers and submarines.

3. It is unfortunate that the U.S.S. was unable to close the major enemy vessels sighted due to initial relative positions at the time of contact. The average closest range was 6500 yards at a range of 1000 yards; the minimum closest range was 6500 yards on a large CV and it was on this vessel that the U.S. first saw the sole attack firing. torpedoes and obstacles. 2. It is not clear whether the vessel was actually a submarine or a patrol boat. The U.S.S. was not in a position to engage the target. The U.S.S

— page 70 —
7. It is right that the Commanding Officer, Officers, and Crew of the USS [USS: ship name] should be given credit for having inflicted the following damage on the enemy:

Damaged - 1 large CV - 22,000 tons.

A... PADER,
acting.

— page 71 —
FC5-12/A16-3/FB5-122  SUBMARINE SQUADRON TWELVE  W1
Serial 0111
COMFIDENTIAL
SECOND ENDORSEMENT to
USS MIIG Report of
Second War Patrol.

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. MIIG (SS261) - Report of Second War Patrol.

1. The remarks and credit for damage made by the Commander
   Submarine Division One Twenty Two are concurred in by the Commander
   Submarine Squadron Twelve.

J. B. GRIGGS.

— page 72 —
12-10/416-3(8)/(16) SUBMARINES 2CR3, PACIFIC FLYER
Serial 01792
CONFIDENTIAL

THIRD REPORT TO
HINGO Report of
Second War Patrol.

CENSUSED TO PATROL NO. 511
U.S.S. HINGO - 3 SCUD MAR 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. HINGO (SS261) - Report of Second War Patrol.
(29 September to 20 November 1943).

1. This HINGO's second war patrol was conducted north of Truk and in the Marianas Islands area.

2. Of the two targets contacted worthy of torpedoes on, a Japanese carrier, was attacked with long range guns and two hits were obtained.

3. This patrol is considered successful for Combat Insignia award.

4. The Commanding Officer, officers and crew are congratulated for having inflicted this following damage upon the enemy.

DETAILED

1 - Aircraft Carrier (USS: Class) - 17,150 tons

DISTRIBUTION:
[Complied Reports]
Cognich (5) ORE 76 (2)
CNO (5) ORE 16 (1)
Cognepo (6) Censubspc (20)
Inti1. Con. Pac. (1) SUBD, MI (2)
Cogn. cross (1) Censubspc-Guibordcom (3)
Consr.rvp.c (1) ...11 Squd drcn and Div.
(...dVB: Sea Plan,Unit (1) Censuborders, Subesp.c (2)
Cinslant (2) Censubstrinp.c (2)
Censubslant (8) ...11 Subcranios, Subesp.c (1)
S/L Schocl, NL (2)
Censopc (6)
Censocospc (1)
Censubscnspc (2)

DISTRIBUTION:
[Complied Reports]
Cognich (5) ORE 76 (2)
CNO (5) ORE 16 (1)
Cognepo (6) Censubspc (20)
Inti1. Con. Pac. (1) SUBD, MI (2)
Cogn. cross (1) Censubspc-Guibordcom (3)
Consr.rvp.c (1) ...11 Squd drcn and Div.
(...dVB: Sea Plan,Unit (1) Censuborders, Subesp.c (2)
Cinslant (2) Censubstrinp.c (2)
Censubslant (8) ...11 Subcranios, Subesp.c (1)
S/L Schocl, NL (2)
Censopc (6)
Censocospc (1)
Censubscnspc (2)

DISTRIBUTION:
[Complied Reports]
Cognich (5) ORE 76 (2)
CNO (5) ORE 16 (1)
Cognepo (6) Censubspc (20)
Inti1. Con. Pac. (1) SUBD, MI (2)
Cogn. cross (1) Censubspc-Guibordcom (3)
Consr.rvp.c (1) ...11 Squd drcn and Div.
(...dVB: Sea Plan,Unit (1) Censuborders, Subesp.c (2)
Cinslant (2) Censubstrinp.c (2)
Censubslant (8) ...11 Subcranios, Subesp.c (1)
S/L Schocl, NL (2)
Censopc (6)
Censocospc (1)
Censubscnspc (2)

— page 74 —
26 February 1944
1300(VW) Underway in company PO 483, report until dark, enroute Midway conducting daily drill and drills.

1 March 1944
0900(Y) Arrived Midway. Received fuel and lube, installed D.R.T., repaired leaks in main induction and radio antenna trunk.

3 March
0730(Y) Underway at two engine speed enroute area conducting daily dives and drills.

5 March
0930(M) PARKER, A.H., 393 25 29, M.I.E., USN, went over the side in heavy seas to clear line from port propeller.

7 March
1109(M) Slowed to one engine speed after taking water down hatch and induction.

8 March
1545(L) Resumed two engine speed.

9 March

— page 75 —
1st March
C745(I) Resumed two engine speed.
12 March
7821(I) Slowed to one engine - weather.
1000(I) Passed to operational control of Commander Task Group SEVENTY-ONE.

1st March
C718(K) Resumed two engine speed.
0915(K) C.C.D. sighted single engine torpedo bomber (aircraft contact No. 1). Submerged. Bomb exploded while passing 150 feet, opening inboard vents on fuel tanks, jarring boot considerably. No apparent damage.
1315(K) Surfaced.
14 March
1010(K) SD radar contact 8 miles along to five as mast went under (Aircraft contact No. 2). Plane not sighted.
1300(K) Surfaced.
16 March
0915(K) D.R. Lat. - 20-44N, long. - 132-33E. Passed seven cod Japs. One in army uniform, dress of others not identified.
18 March
0743(I) Balliington Island bearing 243° T., distance 10 miles. CD radar contact 13 miles along to nine (aircraft contact No. 3). Submerged and continued passage leading channel.
1915(I) Surfaced. Continued west to Emplore and Take to Manila shipping lane.
19 March
0930(I) Began patroling area twenty miles east and west of traffic lane by steering sixty degrees right and left of base course on two hour legs, two engine speed about 13 knots.
1130(I) SD radar contact 30 miles. See Section I.

— page 76 —
1934(H) Began retrotting at one engine speed about 8 knots on course 1900 T.
2350(H) SJ contact 270° relative, 20 to 25 thousand yards, appeared to be a rain squall.

20 March

CO25(F) SJ range and bearing remaining fairly constant, called tracking party.
0255(H) Determined contact to be radar interference, retrolled in moonstreak to seaward. See section M.
0600(H) Reversed course to return to source of trouble in daylight.
0627(H) Dived to rest and approach unseen. Maintained periscope.
1417(H) Executive Officer and Engineer at usual stations in port. Starboard head secured on sound gear. Sound of hull. Fish noises, only, heard on sound gear. Sound of screws in stateroom. Stopped. Sighted white saman, about 75 feet, bearing 095° T, range two miles, course 3150 T. Turned toward, range increased rapidly.
1736(H) Contact to 0300(H) SJ contact 20,000 yards and more bearing 200° relative, my course 195° T. Same series of ships as last night. Nothing in sight. Surface haze. Proceeded to air.
2100(H) Attacked air, proceeding to Singapore, Inco-China to Manila route in order to increase range by patrolling on surface.

21 March

2204(F) Patrolling at two engine speed.

22 March

1040(H) No, 2 main motor out of commission. Began disconnecting mechanically and electrically. See Section I. Retrolling at two-thirds speed on starboard ship. Port short out of commission.
1955(H) SJ radar contact 2570 T, range 23,000 yards develop ed into convoy of five ships in two columns with two large and two small escorts (Ship contact No. 1). Base course 0350 T., speed 10.
2000(H) Port short in commission with number four motor only. Restricted to one ship operation submerged, three motor operation (13 knots) surface with two engines on starboard ship, one on port. Two engines required to use both shafts.

— page 77 —
2355(T) ATTPAC NO.: 1.
Pired six torpedoes zero gyro 68 track at center of convoy, tor 650 run 5900 yards, my course 350°, speed 11.7 knots.
: 2255(T) Change course to 2100 T, at range to far column 12,000 yards, increasing, say flashes and heard sounds of torpedo explosions as follows:
: 2307(T) Two
: 2308(T) Two
: 2333(T) Two
: The last were followed by four distant depth charges. The leading ship pulled anchor from the convoy. Three plies disappeared from the sea to leaving ship 15,000 yards. Scorers said to be in sight.
: 2320(T) Change course to 0350 to 0800.
: 2323(T) Large flash and very heavy explosion on port beam. Scorers said to be in sight.
: 2334(T) At the one remaining ship at 21,000 yards, changed course to 0500 to 0800 to continue. Jets transmitting on 200 knots.
: 2350(T) Attack contact 2850 velocity 13,000 yards flashing lights at us. Substructure visible in light indicated small escort. Turned tail and pulled clear, slowly. Is seen 13, my full power 13.7. Then he gave up, had lost contact with target (group, Durin, chose to transmittance of forty minutes on 500 knots. 72°.
: 2322(T) 0013(T) at course 3260 to head for point of attack, after six of one more for an escort, set course 2650 until south of point.
: 0116 to head east of coast. Stopped to listen but could not determine direction.
: 0334(T) Critical in 1... position of enemy at the of attack, contact.
: 0332(T) set course 0150 and, fortunately, delivered the rear was. Contact 0200 T, distant 5,000 yards. Filled the ocean full of unknown smoke on course 2000 T. Reclosed to 7,050 miles, ran into enemy smoke screen and reversed course to 0200 at 13 knots. Lost contact 14,000 miles.

-4-

— page 78 —
U.S.S. MINCO - Report of Third Tor patrol.

0625(H)  Funnise. At scene of attack. No ships or debris in sight.
    Proceeding to northern edge of area to patrol traffic lanes. Condition of main power plant does not warrant close-in work.
1152(H)  Rader contact 10 miles, submerged, rested (aircraft contact No. 4).
1545( )  Surfaced.

22. March

1500( )  Set westerly course to clear area to work on sick motor.

25 March

0345( )  Passed one or two small boats, not sighted at 1200 yards.
0512( )  Submerged to work on motor.
    Sound contact on fishboat to. Sighted net buoys from 1600 T. to 2630 T. Navy resd course to 0500 T. Could not see boat. Kay have been fish noises.
    List. 15-18 M.
    Long. - 116-44 E.
1503( )  Surfaced, lay-to continuing work on motor.

27 March

0235( )  All motors in commission returning to area.
0731( )  Si. that troe same ships distant about five miles, voiced on surface. Surface have reports periscope with from seaplane. Surface than birds lookouts.
0512( )  ...so reported, radar contact 12 miles. (aircraft contact No. 5). Submarine.
1416( )  Though surface have sighted masts that evolved into six ships hull down, two stack aft A/V's, two transports, two more single stack A/V's (ship contact No. 2). 1-y are been more. True bearing 272° T., distant 10 miles, course 1500 T.
1445( )  Survey course 2100 T. estimate speed 10 knots.
1533( )  Aircraft to surface and track on surface.
1713( )  Casualty No. 2 main motor. Port shift out or collision.
1730( )  Towed, pulled all over in main control cubicle. Ship, 3-2, 212 53 21, A/L, USV, h. d. already entered a "hot" cubicle five times to see the but in fig. this condition. Amuch is canh.

(1220273)

— page 79 —
25 March
Patrolling Empire-Singapore route until message can be sent tonight.

: 22 March
Regan patrolling routes from Manila northward.

: 1 April 1944
1043(H) Radar contact 8 miles (Aircraft contact No. 6). Submerged.

1245(H) Surfaced.

: 2 April
1201(H) Submerged to investigate ship on horizon. Haze prevented identification of fishing boat until range was two miles. Submerged at 1805(H), recovered glass fish not float but allowed us.

: 3 April
Began patrolling Empire-Singapore direct route. Submerged to repair master gyro. Surfaced. Master gyro out of commission.

: 4 April
0800(H) Auxiliary gyro out of commission. Master gyro in commission.

: 5 April
Patrolling Singapore-Manila route. Radar contact 5 miles (Aircraft contact #7). Submerged. Surfaced.

: 11 April
Patrolling Manila-Singapore route.

— page 80 —
1130-34 T. E.
: 150-53 T. N.
: 1837(H) Sighted four bright lights on beach, two flashing lights of patrol boats. Searchlights were above horizon, but radar could not pick up targets. Since they were evidently 'too small for torpedoes, evicted.
: SD radar interference, intermittent and strong, occurred each time a searchlight was turned on. See Section 14. This is in area of S7 interference previously reported. No S7 interference.

12 April
: 0852(H) Sighted two seaplanes north of Hermana Mayor Island.
: 0925(H) Sighted trawler close to beach. White sand clearly outlines ships.
: 0955(H) Radar contact 11 miles (Aircraft contact #8). Submerged.
: 1108(H) Periscope is lit and plane, unknown type, circling ship distant about six miles (Intercept contact #9). Probably same plane.
: 1345(H) Have been within sight of the beach since 0700 yesterday. Plane appeared 4 minutes after a change of second produced the usual 'Anton's' smoke.
: 1536(H) Surface. Set course to clear area in accordance operation order.

15 April
: 0222(H) Entering Babuyan Channel. Sighted small patrol boat 0200 T., distant 5 miles, apparently circling to get at stern. SD contact 5 miles bearing 0750 T., invisibles against background of Ruga Island (Ship contact #3).
: 0339(H) SD contact 10 miles (Aircraft contact #10). Submerged. Set course for Balingting Channel.
: 1536(H) Surface.

16 April
: 0540(H) Submerged to enter Balingting Channel. 'Weather so rough can make better speed submerged and save fuel.
: 0940(H) Sound contact bearing 2100 T. (Ship contact #4). Sighted two of destroyer or escort and mine sweep or gunboat in line of bearing, letter closer (about 3 miles) and behind. Paralleled on course 1500 T. With sweep beam sighted destroyer on port quarter. Turned to pass stern of sweep in attempt to get behind search group, so as to hit for attack on destroyer and for periscope depth control. Sent to 150 feet to maneuver.

-7-

— page 81 —
1037(H)  Trolling destroyer began pinging, bearing still drawing.
1132(H)  With DD range 1200 yards, he started in on collision course, passing over as we passed 130 feet. No drop. Sound conditions were erratic. At times only ping-ing, at times only screws and at times nothing could be heard.
1212(H)  We were surrounded with three destroyers' and three sets of lighter screws until.  Heard heavy screws through hull as a ship passed port side (Ship contact #5). We had been run over by three four-coal-poster, smoking AK's with their escorts. DD's were making 144 turns, about 15 knots, course made good 155 T. Did not have speed or fuel to over-heal, principal cause of our trouble. The enemy's fire was due to the overcast. With no f x since yesterday morn-ing, our estimated position indicated the search group was making a cross-channel sweep.
The evening position showed that we had been set 50 miles 2665 T, and that this coast is covered through Bashi Channel.
2200(H)  Passed through Batan Island, navigating by 2.2. I. screen, range unit feeling enroute.

17 April
1023(H)  SD contact 14 miles (Aireraft contact #11). Submerged.
1235(H)  Surfaced. Sighted small boat on starboard beam. Avoided on surface.

21 April
1000(I)  Position - 17-00' N. 125-00' E.  In accordance orders Commander Task Force 71.1 passed to operational control Commander Task Force 72. Set course to mess south of Yap end then direct to Iau. 4-00' N., Long. 148-15' E., speed of advance 6 knots. Task unit designation 72.1.11.

21 April
0046(I)  Position - 14-51' N. 126-07' E.  SJ radar I torrence bearing 2150 T. Believed to be JACK.

— page 82 —
23 April
Subject: U.S.S. MINGO - Report of Third War Patrol.

0750(I) Periscope watch shifted masts bearing 1950 T., distant 20 miles. Developed into 4 AX's with 3 DD's visible - one ahead, one astern and one on left flank; probably a fourth on opposite flank. (Ship contact #6). Tracked base course 0450, speed of advance 13 knots. My maximum speed 12. Long contact 18,000 yards, bearing 1130 T., course 0240, speed 15. Chances for long-range shot disappeared as target group approached out of rain squall just before we got into close. Overall course and speed of convoy 0450, 13 knots.

22 April
1116(I) C.C.D. sighted masts of two "T-take DD's, bearing 1130 T., distant 9 miles. Took 2100, zig-zagging 20 degrees right and left, T, headed for Palau. Tracked by periscope, pull through one DD changed course to 2000, slowly until angle on the bow and showing top of bridge structure to our bridge watch. Submerged and went to battle stations. DD continued to zig-zag always to the left. We continued to follow bearing until much less and around, before morning. He could do in Palau by then. He had very poor or unconvincing lookouts for an A/S patrol.

26 April
0801(I) SD contact 25 miles (Aircraft contact #12). Submerged. 1021(I) SD contact 18 miles, closing to 12 (Aircraft contact #13). Submerged. 1743(I) Surface.

28 April
0939(K) Lookout sighted unidentified two-engine bomber bearing 3250 T., flying low, coming in. (Aircraft contact #14). Submerged. 1002(I) Surface. 1052(K) SD contact varying between 23 and 25 miles. Submerged when erroneous range of 18 miles was reported to bridge. 1229(K) Surface.

-9-

— page 83 —
1. Lookout sighted unidentified two-or three-meter
   - 0935(1) bearing 3250 T, flying low, coming in (aircraft contact #14). Submerged.
   - 1002(1) surfaced.
   - 1052(1) surfaced.
   - 1229(1) surfaced.

2. 2.2.2.1
   - 0609(1) list. - 1424 T.
   - 1415(1) surfaced.
   - 1544(1) surfaced.

3. 1.1.1.1944
   - 0512(1) Nedar and sound contact with escort TOCS, at 10.
   - 1130(1) Proceeded in convoy, mounting submarine incertination civics and sound runs for escort personnel.

4. 4.1.1.1
   - 1130(1) Moored alongside JUNIUS at Mile Bay.
   - Received 22,300 gallons fuel, 450 gallons lube, oil, and plant. Southern (see Guiness) horticulturist.

5. 5.1.1.1
   - 0700(1) U-cherway in convoy 17 817, enroute Brisbane, two engines (three motor) 3sec.
   - 1330(1) escort deported.

6. 5.1.1.1
   - 1000(1) 'Pored Brisbane.

— page 87 —
1
Time and Date, C.O.T. 1458, 22 March 1944
Position Lat. 130-05' N. - Long. 1140-45' E.
No. and Type Torpedoes 6 - Mark 14, Mod. 3-A
Hits 6
No. Tons Sunk -
No. Tons Damaged -
Range 5600 (Torpedo run)
Type of Attack Night Surface Rader
Est. Draft of Target 6 Feet
Depth Setting 6 Feet
Low or Stern Shot Low
Track Angle 680 Sterbord
Gyro Angle 0°
Target Speed 10 Knots
Firing Interval 10 Seconds
Spread - Ind. Longitudinal
Torpedo Performance Satisfactory? Yes
Remarks:

— page 89 —
1. USS. MINGO
   - U.S.S. MINGO
   - TORPEDO ATTACK NO. 1
   - PATROL NO. 3
   - Time: 2258(H) Date 22 March 1944 Lat. 13°-05' N, Long. 114°-45' E.
   - TARGET DATA - DATA OF IMPLICIT
   - Description: Target consisted of 5 ships plus 4 escorts.
   - Ship(s) Sunk: ---
   - Ship(s) Damaged or Probably Sunk:
   - Range Determined by: [List of ranges here]
   - Target Draft: --- Course 085° Speed 10 Range ---

2. ON SHIP DATA
   - Speed: 11.5 Course: 358° Depth Surface Angle Zero

3. TYPE ATTACK AND TYPE DATA
   - Type Attack: Night surface radar, low power longitudinal spread using Mark 8 angle solver.

-16-

— page 90 —
1 2 3 4 5 6
Track Angle 68° S. 68° S. 68° S. 68° S. 68° S. 68° S.
Gyro Angle 0° 0° 0° 0° 0° 0°
Depth Set 6' 6' 6' 6' 6' 6'
Power Low Low Low Low Low Low
Hit or Miss Hit Hit Hit Hit Hit
Arctic No No No No No No
Mark Torpedo 14-3A 14-3A 14-3A 14-3A 14-3A 14-3A
Serial No. 39865 23685 40013 26820 40326 40333
Actuation Set Contact Contact Contact Contact Contact Contact
Actuation Actual 1" " " " " " "
Mark Exploder 6-4 6-4 6-4 6-4 6-4 6-4
Serial No. 7142 1453 13004 12452 12174 720
Mark Warhead 16-1 16-1 16-1 16-1 16-1 16-1
Serial No. 12190 3406 12583 3474 12473 12192
Explosive TNT TNT TNT TNT TNT
Firing Interval 108 108 108 108 108 108
Type Spread Long. Long. Long. Long. Long. Long.
Sea Conditions Fog. Fog. Fog. Fog. Fog. Fog.
Overhaul Activity - Submarine Base, Pearl Harbor, T. H.
Remarks -

— page 94 —
1. The "cause" apparently is triggered by the CD trans-mitted pulse, since the echo pulse reach in steady on the screen and do not very in range; however:
2. They can be caused to move back and forth across the screen by variation of the transmitter pulse rate.
3. Reading the ship toward the apparent "contests" causes the nearest ship to disappear as the range closes to less then 2,000 yards.
4. The phenomenon was encountered only in late afternoon and at night.

(N) SOUND CONDITIONS
Sound conditions generally good in fair weather except east of Kacelsfield Park.

(C) DISTANT LAYERS
| LONG. | LAT. | TIME | DOP. | TIME |

— page 95 —
119-08 E. 16-35 N. 10745(H) 28 March 120' 40 295'
: 119-08 E. 16-35 N. 8700(H) 29 March 20' 16 300'
: 118-20-15 E. 16-25-55 0630(H) 30 March 60' 11 295'
: 119-59-40 S. 18-55 N. 0630(H) 31 March 60' 8 280'
: 119-44 T. 18-39 N. 0600(H) 1 April 70' 5 120'
: 117-37 R. 17-59 N. 0500(H) 3 April 40' 5 280'
: 117-36 E. 17-56 N. 0700(H) 4 April 50' 9 250*
: 115-11 E. 15-49 N. 0700(H) 5 April 40' 9 270*
: 116-23 S. 16-52 N. 0700(H) 16 April 20' 11 280'
: 116-36 T. 16-52 N. 0700(H) 17 April 60' 9 280'
: 114-57 S. 14-50 N. 0700(H) 8 April 40' 12 280'
: 114-37 E. 13-14 N. 0700(H) 9 April 60' 8 300'
: 115-04 E. 13-20 N. 0930(H) 9 April 20' 8 260'
: 117-15 S. 13-27 N. 0700(H) 10 April 50' 12 300'
: 119-47-10 S. 15-02-30 0700(H) 11 April 120' 7 295'
: 119-40 S. 15-34 N. 0700(H) 12 April 110' 8 270'
: 119-33 S. 15-59 N. 1200(H) 12 April 80' 4 160'
: 118-53 S. 19-26 N. 0700(H) 13 April 62' 15 280'
: 119-54 S. 18-56 N. 0700(H) 14 April 85' 10 275*
: 121-52 S. 20-18 N. 1600(H) 16 April 195' 2 280'
: 122-31 S. 20-37 S. 0700(H) 17 April 110' 4 280'
: 127-04 S. 15-54 T. 0700(H) 20 April 150' 1 265*
: 123-54 S. 14-42 N. 0700(H) 21 April 140' 3 270*

-22-

— page 96 —
U.S.S. MINGO - Report of Third War Patrol.

Subject:  All gradients reactive.  Depths are measured by bathymetrograph - keep depths 20 feet greater.  *Indicates another layer beginning - amount not measured.  No unlisted temperature difference greater than one degree was noted outside China Sea.  Daily 300-foot dive made enroute to and from area.

(2)  FEATURE, FOOD AND FABRICATION

Good.

(3)  PERSONNEL

(a)  Number of men on-board during patrol - 72.
(b)  Number of men qualified at start of patrol - 49.
(c)  Number of men qualified at end of patrol - 12.
(d)  Number of unqualified men making first patrol - 15.
(e)  Number of men advanced in rating during patrol - 13.

HONG, James Leslie, 214 62 49, CD (2A), USN, completed twenty years' service on 1 May 1944.  Fifteen years have been in submarines.  He has made three war patrols.  He is a graduate of the Gyro-Omega School at San Diego, Calif.  He desires duty as instructor in Submarine School, San Diego, Calif.  HOGAN, an outstanding education and leader, one of the most popular and dependable men on board, is fully qualified and reasonably interested.

(4)  TITLES, STATUS, and TYPED USED

| Title | Status | Typed USED |
|------|||
| Pearl to Area | - | 5461.8 miles | 63,143 miles |
| In Area | - | 4292.78 | 30,845 miles |
| Area to Brisbane | - | 5150.92 | 32,255 |

(5)  DURATION

| Duration | Status | Typed USED |
||||
| Days enroute to area | - | 21 |
| In area | - | 23 |
| Enroute base | - | 27 |
| Submerged | - | 4 |

(6)  FACTORS OF EMUNICATION

| Factors | TYPED USED | Provision | TYPED USED |
|||||
| Torpedoes | 18 *10,000 | 10 | 10 |
| *At *line Pay |  |  |  |
| Limiting factor this patrol - Operation order. |  |  |  |

-23-

— page 100 —
1. The Commander Task Force SEVENTY-TWO, Care of Fleet Post Office, San Francisco, California.
26 May 1944.

SECOND INDORSEMENT to CO MINGO Report of Third War Patrol.

From: The Commander Task Force SEVENTY-TWO.
To: The Commander in Chief, UNITED STATES FLEET.
Via: The Commander, SEVENTH FLEET.

Subject: U.S.S. MINGO (SS261), Third War Patrol, comments on:

1. The MINGO Third War Patrol began at Pearl Harbor and was conducted in areas under the operational control of Commander Submarine Service, SEVENTH FLEET. MINGO suffered a major casualty to number two main motor while on patrol and was routed for refit to BICISAN where necessary spare parts were immediately available.

2. The casualty mentioned above occurred two days after MINGO entered her assigned area and gradually hindered her off-ship defense activities. All of the live acoustic activity of torpedo attack was limited to the range of 5,600 yards and subsequent disappearance of radar pips is believed insufficient evidence for official assessment of damage.

3. Despite the seventy-five day patrol, the MINGO off-ship and crew arrived in fine physical condition and excellent spirits. Except for the major casualty to the main motor the ship was in excellent material condition. The MINGO is the cleanest ship ever to arrive in this Task Force after a long period at sea.

4. This patrol is designated as not successful for purposes of award of Combat Insignia.

5. The Commander Task Force SEVENTY-TWO congratulates the Commander Officer, officers and crew of the MINGO on a well conducted patrol despite extensive material difficulties. It is regretted that no damage to the enemy can be assessed.

J. M. HAINES.

— page 106 —
1300(H)    Correct bearings started to increase instead of decreasing.
: 1305(1)    Surfaced.
: 1335(1)    Changed course to head for smoke.
: 1410(1)    Sighted plane (Navy) actually over smoke, distance 15 miles.
: 1413(1)    Distance of smoke increased.
: 1547(1)    Surface to resume absence.
: 1600(1)    Night. Not bearing over, turned away.
: 1600(1)    Target has slowly moved.
: 1700(1)    Radar contact. No planes.
: 1814(1)    No ships in sight. Room has been opened again. Artillery.
: 1814(1)    Surface of Diver, "to" the Diver's turn to dive over us.
: 1915(1)    Surface of Diver's turn to dive over us.

— page 109 —
15 July
1307(H)  Beard smoking notice in plain generator. Scoured engine for investigation. Pan found loose. Generator out of commission for part of patrol. See section F. 1638(F)  But master gyro cut off on mission to renew rotor bearings. Pilot on station motor short circuit, debris bayon'd out capacity. Faster gyro cut off commission for rest of patrol. See section F.

16 July
0446(F)  Railing off. Sighted small boat, bearing 660° T., about 3000 yards away. Manuvered to avoid. Boat commenced blitzing.

0524(F)  Submerged to motor in vicinity and tried air detection.

0836(F)  Sighted smoke bayon'd horizon, bearing 287° T. Ship contact F3. Charged course to close smoke.

0640(E)  Hard two distant explosions. Few seconds apart. These sounded like torpedoes.

0843(F)  In vicinity of smoke. 1200 yards away, circling in vicinity of smoke. 1200 yards away, circling in vicinity of smoke.

0854 to 1245(H)  Hard about 150 cables. Apparently one of our cables at varying ranges, none at any of our planes (FAR) were seen through surface. 1200 yards away. 1200 yards

— page 111 —
U.S.S. MIMIC - Report of Fourth War Patrol.

(C) [STAMP HERE]

In vicinity of Twel Taw! sky was mostly overcast, sea calm, occasional rain squalls.
In South China Sea sky was overcast, with heavy sea, wind and rain from southwest.

(D) [STAMP HERE]

In area immediately south of Twel Taw! a fairly consistent set of 250° T., and drift of 1 knot was experienced. Within three miles of Twel Taw! Reef the current became stronger and set variable.

(E) [STAMP HERE]

None noted.

— page 113 —
1. 2. 3. 4. 5.
Date: 23 June 28 June 30 June 1 July 1 July
Time (Tons): 1057(7) 1057(7) 1527(E) 0724(E) 1209(E)
Position: LT. 1040-001 1040-251 1040-410 1040-251 1040-261
Tons: 1259-001 119936 1200-071 1160-451 1160-401
Speed: 6.6 5.3 5.2 5.2 5.2
Course: 2065 E, 2077 T, 2500 T, 2400 T, 2500 T
Trim: Surf 50, 50, 50, 50, 50
Injuries: None 30, 30, 30, 30, 30
Number: 1 1 1 1 1
Type: PT 1 1 1 1 1
Firebase Mission: Unknown 20 Unknown 20-30 Unknown
No. Contacted: 1 1 1 1 1
Initial Range (Tons): 19 20 23 13
Elevation (Msl): Unknown 20 Unknown 20-30 Unknown
Beam & Beam: 5.5 5.5 6.5 6.1 6.2
of Range: 2500 3000 6000 5000 5000
Torpedo: 6 6 6 6 6
Crew: 1 1 1 1 1
(State: 1 1 1 1 1
See: (Seaport) 57 57 57 57 57
(Correction(Rel): 57 57 57 57 57
Visibility (Mls): 5.5 5.5 6.5 6.1 6.2
(Ex. in Feet): 2500 3000 6000 5000 5000
Clouds: 1 1 1 1 1
(Report: 6 6 6 6 6
Overcast: 1 1 1 1 1
(Ex. (Rel.): 1 1 1 1 1
1.00m (Mls): None None None None
(Ex. (Mls): None None None None
Type of 5/6 ommutlase used on this patrol: Dark grey.

— page 115 —
12. 13. 14. 15.
Date: 5 July 12 July 16 July 20 July
Time (hours): 1045(?) 1054(?) 1040(?) 1405(?)
Position: 1st. 119-25' 117-35' 116-15' 116-35' 1050-00'
Lon.: 120-16' 120-19' 120-45' 120-50' 126-55'
Shores: 4.5 4.5 2.5 2.5 2.7
Course: 1050 1050 2850 N. 1050 N. 2300 N.
Orient: Surface 30 Sec. 30 Sec. 30 Sec. 30 Sec.
Minutes: 0 0 0 0 0
Number: 1 1 1 1 1
Type: Torpedo Torpedo Torpedo Torpedo Torpedo
Torpedo Class: Torpedo Tor

— page 117 —
22 July
Tins (Zone): 1725(ft)
S Position: Int.
Ions: 1260-04° N.
Speed: 10
Course: 250° T.
Trim: Surface
Instructs Since Last:
Type: Unknown
A Probable Mission: Unknown
R How Contacted: N
R Initial Range (ft.): 15
A El. v. tion Angle: Unknown
Range & Rad. Err. (ft.): ND
of Plane W. in it
Detected S/N: [S/N: text here]
Sec: (Beaufort)
3 (Direction(Rot): 5xW
N Visibility (Kiles): 3
I Clouds: (Ht. in Fest): 1300
I (Percent): 10
O Corvert: [Corvert: text here]
S (Err. (Rad) Moon: (Angle) None.
(Pot. Illum. [Pot. Illum. text here]

Type of S/N: [S/N: text here] converted to this format: [Text here]

— page 120 —
7
Tubes Fired - 4.7. 4.9 4.10
Track Angle 62 - 72 degrees
Cyro Angle 162 186 185 192
Depth Set 3 feet 3 feet 3 feet 3 feet
Power High rich High High
Hit or Miss Miss Miss Miss
Zaratic No No No No
Mark Torpedo 14-14A 14-24A 14-34A 14-34
Serial No. 19358 16265 22167 35246
Mach Explosive 6-5 6-5 6-5 6-5
Serial No. 16275 17138 17126 14152
Armor Type Contact Contact Contact Contact
Armor Type
Mark Warhead 16 1-1 15 16
Serial No. 2429 15022 30 1392
Explosive type 3M 3M 3M 3M
Hiring Interval 2 3 2 5 8
Type Spread 10 ft. 10 ft. 10 ft. 20 ft. 20 ft.
Bea Conditions Moderate Sea - Moderate Small
Overhaul Activity Naval Repair Station, Nav 124.
Repairs - Performance satisfactory.

-17-

— page 121 —
2
Date: 7 July 1944
Position: 135-551 M., Long. 116°-30' S.
No. and Type Torpedoes: 4 - 1K 14-3a
Hits: Three
No. Tons Sunk: 1700
No. Tons Damaged: ---
Range: 1600
Type of Attack: Sunk, right, zigzag
Set. Depth of Target: 3,000
Depth Setting: 3 feet
Bow or Stern Shot: Bow
Track Angle: 76 - 30.5 degrees
Gyro Angle: 327°, 027°, 030°, 030°
Target Speed: 10 knots
Firing Interval: 68, 115, 75
Spread - Hinge: 10° R., 10° I., 20° R., 20° I.
Torpedo Torporance Satisfactory? Yes
Remarks: Performance was satisfactory except that the torpedo fired from 1 tube breached once and then squeezed to run normally. Performance of 1K 6 - 06. 6 oscillator was satisfactory.

-18-

— page 123 —
1. 1. 2. 3. 4.
Tubes Fired - 1. 1. 2. 3. 4.
Track Angle 755 755 755 755
Cyro Angle 27R 27R 30R 30R
Depth Set 3 feet 3 feet 3 feet 3 feet
Depth 3 feet 3 feet 3 feet 3 feet
Hit or Miss Hit Hit Miss

— page 124 —
7.5. 1200 1 70. 4
Information on Initial Inspection of 5/6 Contained in Detection Incident:

Co. 1
Type of Joint Attack:
MUD: class destroyer

Hie and Relative Location, Name, and Date of Attack:
Tonnfisher, 5th, 1st

— page 125 —
7 July
Date: 7 July
Time (Zone): 0120(?) 206(?)

Depth of Water (Depth): 2000 fathoms
List: 130-55N, 139-55N
U.S. Line: 116-30' E, 116-30' E
A. West Depth: 60
B. East Depth: 3
E. Depth: 210
Type Target: PT boat in 1700
Torpedo (Bottles): 1700
Depth: 91-59' 91-59'
Speed: 23
Rel. Depth: 136
Type Sub Ranges: 00A 00A
Kill Count: 00A
Range from (ft. - ft.) 2400
Range from chart sources and source: 1500
Probable Reason for Discovery: Night
Reason: 11. Failed
Net evidence that plts was detected: None
Net evidence that plts was not detected: None

-22-

— page 126 —
1700
"That was a report from the USS [NAME OF SUBMARINE] on patrol in the [DATE] [LOCATION]."

[Submarine details]
[Submarine name, type, and location]
[Submarine's history, including deployments and actions]
[Submarine's crew and officers]

[Submarine's weapons and equipment]
[Submarine's armament and armament types]

[Submarine's equipment and systems]
[Submarine's propulsion and propulsion systems]

[

— page 127 —
1. July
: 1. 16 July
: 1. 1025(E)
: 1. 0912(E)
: 1. 1593
: 1. 0430° N.
: 1. 159°-15' W.
: 1. 119°42' W.
: 1. 120°45' W.
: 1. 070° T.
: 1. 060° T.
: 1. 2.5 Kts.
: 1. 2.5 Kts.
: 1. 60 Ft.
: 1. 60 Ft.
: 1. 1.5 Kts.
: 1. 1.5 Kts.
: 1. 7-8
: 1. 7-8
: 1. 1.5 Kts.
: 1. 1.5 Kts.
: 1. 23,000

— page 128 —
15 July: "Testo gyro running erratic. Vacuum lost in both units. Ran over vacuum. Started reactor gyro. 15 July: Testo gyro running erratic. Lost vacuum in both units. Ran over vacuum. Started reactor gyro. 15 July: Sens trouble again. Suspended reactor gyro, changed bearing on string of South rotor. Vacuum would not hold in South case. Crank both cases, starter gyro. South gyro would not operate to speed. 3-phase stator winding of South rotor shorted. No spare aboard.

NO. 1 PATROL REPORT

15 July: "Hills carrying a zero alert on a rain engine, 550 P.R., 135 A.M., 1/2, a sliding noise was heard in generator. Secured engine. Found fan impeller holding down bolts carried away and covers ripped.

(1) RADIO

Conductor's instructions:
- Use [RADIO: text here] to record radio transmissions.
- Use [RAD

— page 129 —
35-12N - Report of Fourth War Patrol.

Traditionally once every twenty-four hours we experienced a minor breakdown in GT set. "A bellow this continues of diverse small troubles can to explained by this excess temperature at which our set is run. Set sets too hot to touch after two hours' operation in warmer latitudes, at right we are requesting an improvement ventilation system.

-26-

— page 133 —
F05-12/116-3/FB5-122
Serial 1137

CONFIDENTIAL
FIRST EDITION: 2nd to
U.S.S. H.M. 1-100 - Report
of Fourth War Patrol.

From: The Commander Submarine Squadron TWELVE.
To: The Commander Submarines, SWEDEN FLEET.
Via: (1) The Commander SWEDEN FLEET.
(2) The Commander SWEDEN FLEET.

Subject: U.S.S. H.M. 1-100 (SS261) - Report of Fourth War Patrol.

1. The Fourth War Patrol of H.M. 1-100 occupied a period of 41 days of which 29 days were spent in enemy waters. Eight days were spent in the T.A.T.-T.A. area where a close range reconnaissance of this Fleet's mines was accomplished; and seven days were used in an area west of LUNON.

2. There were three contacts with major enemy shipping, only one of which could be closed. This resulted in two well executed night periscope attacks on a destroyer which had left the convoy and pursued H.M. 1-100's ship. There are several things which are of special interest in this contact.

(a) Initial contact was at nine miles in the 31st hour.

(b) Two minutes later a four ship convoy was in sight from bridge and H.M. 1-100 was tracking from ahead.

(c) Six minutes after initial contact H.M. 1-100 was sighted by DD at 12,000 yards.

(d) With DD making 23 knots and range closed to 8,000 yards, H.M. 1-100 dived for a short time to attack just 17 minutes after initial contact. The use of a false target shell at this point is noteworthy.

#) H.M. 1-100 raised at periscope depth and watched DD dron 12 Depth charges; then H.M. 1-100 attacked the DD at a range of 18,000 yards with a 670' track angle. Target zigged rapidly away and torpedoes missed.

— page 135 —
324-71/416-3
Serial 069
C=O;I=J=1=D=3=1=T=1=A=1
STOP: J.T. Report of
Port: War Patrol.

From: The Commander Submarines, SEA-TH FLOT.
To: The Commander in Chief, SEA-TH FLOT.
Via: The Commander, SEA-TH FLOT.

Subject: U.S.S. HUD (35261) - Report of Fourth War Patrol - Combat on.

1. HUD conducted her Fourth War Patrol in the vicinity of TAH and the area (east or west).

2. The Force Commander notes with pleasure the courageous and splendidly executed counter-attack on an attacking Fleet Type Destroyer. It is reported that tactical failure necessitated an early termination of this successful patrol.

3. This patrol is designated "successful" for the purposes of war of the Submarine Combat Insignia.

4. The Force Commander congratulates the HUD Commander, Officer, Officers, and Crew, on infiltrating the following stage of the attack:

SUN
1 - DD (FIRST TYPE - 20) - 1,700 Tons (Attack is. 1)

F. F. STRAUS, JR.,
FLAG SECRETARY

DISTRIBUTION:
| Commanding Officer | (3) (Direct) | CTF-72 | (2) |
||||-----|
| Vice OpsNav      | (2) (Direct) | C33-12 | (1) |
| Vice OpsNav Op-23c | (1) | C33-16 | (1) |
| Combatant        | (1) | C33-18 | (1) |
| Combatant        | (1) | DivOssubton-12 | (1) |
| Combatant        | (1) | DivOssubton-16 | (1) |
| Combatant        | (2) | DivOssubton-18 | (1) |
| Combatant        | (2) | DivOssubton-18 | (1) |
| Combatant        | (30) | S/I. SecOmd. i.L.Conn. | (2) |
| Combatant        | (4) | Subsub. car. Island | (2) |
| TR-71            | (4) | S/I. 7th Pit | (1) |

To report this report to the Director of Naval Operations.

— page 136 —
1/1
SS261/16-3

From: [Name]
To: [Name]
Via: [Name]

Subject: U.S.S. HMNO - Report of War Patrol Number FIV.

Enclosure: (1) Subject Report.
    (B) Track Charts for Corranger Test Force
    CW37Y-00Y only.

1. Enclosure (1), covering the fifth war patrol of this vessel, conducted in MEDUSA 6Z and south during the period 27 August 1944 to 13 October 1944, is for ended herewith.

12 07/12
J. R. "JIM" JOHNSON

DECLASSIFIED-ART. 0445, OPNAVINST 5510-10
BY 02-0262C DATE 3/3/72

DECLASSIFIED

— page 137 —
1. U.S.S. TITAN (SS261) - Report of Fifth War Patrol, Period from 27 August 1944 to 13 October 1944. COMTASKFOR 71 Operation Order No. 118-44.

(A) PROCEDURE
Arrived Freentale on 31 July 1944 from Fourth War Patrol. Underway normal refit alrcgside U.S.S. CAPTAIN, and eight-day training period. Fixed three exercise torpedoes. On 15 August 1944 Lieutenant-JGNDR. J.P. KALISCH, USN, relieved Lieutenant-Commdr. J.J. STALEY, USN, as Commanding Officer.

(B) OPERATIVE
12 0712

27 August 1944
1310(H) Underway on route patrol area via Exmouth Gulf, in company with U.S.S. MAURITIUS. Conducted daily tracking drills while in company. VHF antenna leaked too badly to use.

30 August
1610(H) Noted port side to to oil barge at Exmouth Gulf. Fueled to capacity. Received modified type insulators from Freentale for VHF.

31 August
0800(F) Underway at two-cm/s speed enroute area, conducting daily dives, drills, and school for the new men.

1 September 1944
1452(H) After much labor and experimenting, fixed VHF antenna so it would not leak. Tested satisfactorily at 400 feet.

2 September 1944
0842(H) Sighted U.S.S. BREAK southbound, bearing 357° T., distance 8 miles.

4 September
0330(H) Entered Sevu Sea enroute Ombai Strait.
2230(H) Completed transit Ombai Strait.

5 September
1315(H) Sighted small seilboat 9 miles south of Buton Island, southeast Celebes, and closed to investigate.

— page 139 —
10 September
0445(K) Plane on SJ radar, 5000 yards. Plane faded out at 12,000 yards. Plane contact #9.
0741(K) Sighted plane from bridge coming in, 7 miles. Submerged. Plane contact #10.
0854(K) At 50 feet, plane on SD radar, 7 miles.
0908(K) At 50 feet, plane on SD radar, 9 miles.
1220(K) Surfaced.

11 September
0506(K) Interference on SJ radar, 0500 T.
0715(F) Sighted U.S.S. GUAVIMA 0800 T., 14 miles. Reversed course.
0730(K) Sighted BENTY type plane from bridge, 7 miles. Submerged. Plane contact #11.
0830(K) At 60 feet sighted plane 5 miles away on parallel course.
1000(K) SD radar out of commission.
1405(K) Surfaced.

13 September
0000(K) Commenced netrolling on reconnaissance line.
0345(K) Contact on SJ radar, 0570 T., 12,000 yards - two small ships, later identified as 500-ton minesweepers. Ship contact #1. Changed course to 0400 T.
0347(K) 'Sent to brittle stations and commenced tracking.
0412(K) Goinc chased flank speed, trailing targets at 12,000 yards. Their speed 16.8 knots, zigzagging in column from 0700 T. to 1400 T. at irregular intervals.
0435(K) 'Mailing full power (17 knots), blew all tanks - gaining slowly when targets zigzagging on their base course. Moon is out (half full) hidden occasionally by clouds. Sky hazy. Targets visible from bridge at 10,000 yards.
0440(K) Range 6,900 - MYNO still in third place, gaining slowly.
0500(K) Range 5,000 - Blew all tanks again. Pleaded with maneuvering room for more speed. Sun will be up soon.
0515(K) Range 3,700 - Blew all tanks. Still enjoying novelty of chasing 2 Jp2 escorts. Targets very large now - visible from bridge without binoculars.
0526(K) Range 2,600 - Apparently Jays don't have a head aft - or don't permit using some on the 04-08 watch. Targets zigging to 1400 leg.
0527(K) Fired three torpedoes - at after ship on 150 starboard track with 1/40 speed, gyros 30 right, torpedo run 4200 yards, depth setting 3 feet.

— page 140 —
0530(K) Getting list in the cargo. Steward course. Torpedoes missed to starboard. Leading target had zigged left shortly after firing. - right target squeezed to alter course. Torpedoes passed close to target. - 0537(K) Check means to continue pursuit. 0535(K) If not, must stop, 2,000 KTS. tact report to LCS. 0555(K) Get report to Commander 72. 0640(K) CDR, LCDR, LT, ENS, CO, XO, etc. 1133(K) 1204(K) Command. 1831(K) S. 1855(K) Surfaced.

15 September

0708(K) S. 0755(K) Command. 0759(K) S. 0859(K) 0920(K) 1114(K) 1210(K) 1339(K) 1423(K) 1513(K) 16 September

— page 141 —
1237(K) Plane contact on SD radar, 18 miles. Plane contact #23. Plane closed to 12 miles, then opened out.
: 1248(K) Plane contact on SD radar, 14 miles. Plane contact #24. Plane closed to 10 miles, then opened out.
: 1333(K) Sighted BENTTY type plane from bridge, 8 miles. Submerged. Plane contact #25.
: 1407(K) Surfaced. Plane contact on SD radar, 16 miles. Plane contact #26. Plane closed to 14 miles, then opened out.
: 1847(K) Sighted BENTTY type plane from bridge, 12 miles. Plane contact #27. Plane did not close. Japs must be playing favorites out here.

17 September

: 1120(K) Sighted BENTTY type plane from bridge, 8 miles. Plane contact #28.
: 1132(K) Plane headed in - submerged.
: 1209(K) Surfaced.
: 1248(K) Sighted BENTTY type plane from bridge, 10 miles. Plane contact #29.
: 1255(K) Plane radar picked up same plane at 12 miles.
: 1700(K) Sighted BENTTY type plane from bridge, 8 miles. Plane contact #30.
: 1703(K) Plane headed in, submerged.
: 1742(K) Surfaced.
: 2345(K) Exchanged calls with U.S. DAC.

18 September

: 0930(K) Sighted KURE type plane from bridge, 6 miles. Submerged. Plane contact #31. Variety at last.
: 1011(K) Sighted KURE at periscope depth, circling overhead.
: 1015(K) Plane contact #32.
: 1021(K) At 150 feet, enroute 200 - heard aerial bomb explode on starboard bow, 500 yards away.
: 1021(K) Heard second bomb, same bearing further away. Commenced maneuvering.
: 1052(K) At 60 feet sighted JAKI type plane overhead. Plane contact #33. Went back to 200 feet.
: 1136(K) At 60 feet sighted JAKI type plane circling 3 miles astern. Plane contact #34. Back to 200 feet.
: 1258(K) At 60 feet sighted KURE type plane 5 miles away. As we watched, plane dove at water. Heard 3 distant explosions. Plane contact #35. Back to 200 feet.
: 1303(K) Heard 2 more distant explosions.
: 1306(K) Heard 2 death bombs - not close.
: 1428(K) Surfaced. The Nip zooms seem unfriendly today.
: 2336(K) Dejarted area enroute Mindanao Sea.

— page 142 —
19 September

0000(K) 1014(K) 1019(K) 1054(K) 1125(K) 1202(K) 1343(K) 1600(K) 1935(K) 2034(K) 2036(K) 2135(K) 2200(K)

Exchanged calls with U.S.S. DACE. Sliched party type plena from bridge, 14 miles. Plane contact #36. Submerged when plane headed in. Surface. Plane contact on SD radar, 10 miles, closing. Sur- merged. Plane contact #37. Surface. 'Ve learned later that one of our flyers shot this plane do r. Sliched object which appeared to be mine, in lati- tude 4-5-31" N, longtitude 220-0-21" E. Transferred operational control to COMTASKFOR 71. Commenced transit of Submutu Passage. Exchanged calls with north bound U.S.S. BONNISH.

2034(K) 2036(K) 2135(K) 2200(K)

Slowed to permit OMPUT to draw ahead. SD radar out of commission. SD radar back in commission. Completed transit Submutu Passage.

20 September

0357(K) 0710(K) 1446(K) 1448(K)

Exchanged recognition signals with U.S.S. DADDIE. SD radar out of commission. Sighted two silhouettes on horizon, headed toward them to investigate. Sighted BATTY type plane coming in low, range 1 mile. Due to bad visibility conditions Jap apparently did not see us either until he passed astern. Submerged. Plane contact #38. He banked sharply and headed at us, range as periscope went under 1000 yards. He did not drop, either because he didn't have time to open his bomb bay or because he didn't have any bombs. Surfaced and manned forward 200M to close sailboats. They turned out to be Koros - this cost us two cartons of cigarettes and 50 pounds of rice, as they had no pro- visions aboard.

21 September

0110(K) 0548(K) 1917(K)

Commenced transit of strait between Negros Island and Mindanao. Completed transit. Submerged in western Mindanao Sea for all-day dive. Surfaced 10 miles south of Bohol Island.

— page 145 —
1440(H) Contact 48.
1525(H) Surface.
1550(H) Sighted plane from bridge, 15 miles. Plane contact 49. Plane did not close.
1623(F) Plane contact on 6th radar, 12 miles. Plane contact 50. Submerged when plane closed to 6 miles.
1700(H) Surface.
1706(H) Sighted unidentified plane. From bridge, 7 miles. Plane contact 51. Plane did not close.
2030(F) Plane transited 6th radar. Aircraft from Kerran Island and Zau Island.
2232(H) Xchanged recognition signals with U.S.S. HOR.
2352(H) Commenced transit of Sibley Passage.

29 September
0143(H) Completed transit of Sibley Passage.

30 September
0540(H) On station for 6th radar duty.
0805(H) Plane contact on 6th radar, 16 miles. Plane contact 52. Planes did not close.
0850(H) Sighted mast of large ship, 20 miles, 320° T. Ship contact 52. Started automatic contact.
0955(H) Target identified as properly marked HITAMA 'ARU, hostile ship.
1020(H) Plane contact on 6th radar, 16 miles. Plane contact 53. Six planes, treacherously out. Planes closed to 4 miles and opened out.
1054(H) Received report on 5 airplanes down in water. All should flank, headed 'carry' to you.
1400(H) At point where visibility was poor. Command scrambled search-ing area by radio. Aircraft to proceed to 200 miles.
1403(H) Sighted plane 50 miles. Plane from bridge, 16 miles. Plane contact 54. Plane did not close.
1950(H) Changed course to run at 6° 30' east from bearings from reconnaissance vessel.
2307(H) Towed several line to 4 miles to contact and 2 started search on runway or bearing.

1 October 1944
0121(H) Transferred recognition signals with U.S.S. RAY.
0526(H) Crew up fruitless search for aviators to return to station.

— page 146 —
7
SUBJECT: U.S. KING - Report of Fifth War Patrol.
---
0701(F) Plane contact on SD radar; 15 miles. Plane contact
    #55.
0712(F) Submerged when plane closed to 2 miles.
0753(H) Surface.
0800(F) Plane contact on SD radar, 7 miles. Submerged.
0913(H) Surface.
1000(F) Plane contact on SD radar, 15 miles. Plane contact
    #57.
1009(H) Plane closed to 7 miles. Submerged. Another plane
    contact on SD radar at 17 miles. Plane contact #58.
1035(H) Surface. Plane contact on SD radar, 25 miles. Plane
    contact #59.
1149(H) Plane closed to about 11 to 13 miles and has stayed
    there since 1935. New range contact on SD radar at 24
    miles. Plane contact #60.
1239(H) Plane closed to 6 miles. Submerged.
1314(H) At nearshore center of surface plane at 4 and 10
    miles.
1326(H) Surface. A variety of aircraft on for 2 hours.
1437(H) Received anchorage at 20 1/2 miles south east of
    Yeager's position for today's raid.
0849(H) Investigated native sailboat on station - negative
    results.
1134(H) Apparently no raid today. Decided to close beach in
    vicinity Arrupa Island.
1300(H) Sighted small ship bearing 3200 T, 7 miles. Ship
    contact #9. Destroyed 700 and threw it over the side in
    50 fathoms of water in latitude 15-07' S., longitude
    1170-38' E.
1417(H) During approach on surface, three more similar ships
    on port bow. All four approached to be trawlers. Decided to close
    around on three submarine for a run shoot.
1434(H) Submerged.
1600(H) Stations for battle surface.
1608(H) Submerged - close to beach, targets 3400 yards away.
    Rigged in round heads and 10 logs. Targets 1 and #3 -
    150 tons; target 22 - 265 tons.

-10-

— page 147 —
1610(H) Opened fire on middle trawler with 4" gun. Targets appeared puzzled - seemed to head towards us rather uncertainly, at slow speed.
1612(H) After hitting target #1, shifted to right hand trawler. Observing machine run fire from stern at target #2.
1620(H) Fire stormed abruptly following explosion of 4" shell in after part of trawler. After several hits, target appeared to break at water line.
1625(H) Shifted to left hand trawler, target #3, range 1000 yards. Scanned fire with 20" after several hits target listed to port and sank in shallow water. Hor masts were still visible.
1630(H) Cmre right to bring guns to bear on targets #1 and #2 which, though dead in the water, had not sunk - apparently grounded.
1636(H) Ran around ourselves. Stacking full, rudder jammed hard right, rudder in the mud. No reading on fathometer. Opened fire with 20" and 50 collibors on target #2. 4" gun was on target #1. 20" at target #2 on fire. Obviously loaded with oil drums as smoke became heavy and black. Target #1 has several holes in her at water line.
1638(H) Got clear of the mud, cleared rudder and started forward standing in water. This ship was the 3, 300 tons.
1700(H) Opened fire on target #4 at 2000 yards. Second, third, fourth and fifth shells burst and smashed and set hor on fire. At 1000 yards opened fire with 20M, start- ing a fire on the bow. All had over 3000 yards of smoke. Last target exploded to be loaded with fuel oil drums as smoke was very dark, heavy. This later confirmed by survivors. This ship was the C-3, 300 tons.
1707(H) Opened firing.
1730(H) Commenced maneuvering to pick up survivors. Pino incensed and threw Japs in the water.
1748(H) Crew line natives on board - one badly wounded in the right cheek. Quelled not catch the Japs as they kept swimming away, even after crushed with close shots from carmine.
1752(H) Charged course to 050° T, all ahead full. Survivors below and under one of ammunition's rate.

3 October
0723(?) Plane contact on 3D radar, 12 miles. Plane contact #61. Plane did not close.
0810(H) Plane contact on 5D radar, 25 miles. Plane contact #62. Plane did not close.

— page 148 —
0820(H) Plane contact on 5 rad, 2 miles. Plane contact #53. Five waves down. 1 miles. 2 minutes of one IMBARON to all other vessels. Three ships and one LIT.

: 0830(H) This I.T. boat on 25 meters toward 3 miles. Submerged.

: 0906(H) Surf 3-5. Plane contact on 5 miles. Plane contact #64.

: 0908(E) 1-2. 1-2

— page 149 —
0830 (H) : Sighted small fire starting to burn on beach at east-ern edge of Bexy. Fire put out an excessively large amount of smoke. Believe we saw something wave. Decided to investigate.

0830 (H) : Reversed course and headed into Bexy, all ahead 1/3. As can make out five figures on beach - baliovo they are: American aviators.

0833 (H) : All stops. Flooded 1/4 min behind tank. We are inside the 100 fathom curve. Breaking out rubber boat. In about 3 fathoms of water put rubber boat, Executive officer, to get on deck. Man over the side to investigate. Tosted two extra lookouts to guard against surprise aircraft attack. SD radar in effective as we were nearly surrounded by high lenc close aboard.

0901 (H) : Rubber boat returned with four aviators. Fifth man added out in native dugout canoe. Decided to bring boat back to present to officer! club in Fremantle. Picked up: 2nd, Lt. F.L. DREWING, USA; Sgt. P.C. AVENIUS, USN; Col. B.C. VAN ONDER, USN; Cpl. N.Y. BLAIR, USA; and Cpl. J.T. TRENT, USA. Position: Latitude 00-00.5' S, longitude 119-35.5' E.

0905 (H) : Dated to search north of Cape Biroe, as 2nd. Lt. DREWING reported that five aviators more had landed in the vicinity. Broke out our largest Ensign and secured it to jolly canoe, as aviators had not been sure we weren't Japs.

0924 (H) : Sliced what agreed to be movement on rocks off beach.

0926 (H) : Sliced fishing light and periscope spread on rocks. Sliced flare in vicinity of rocks. Three men visible. Commander maneuvering to close beach.

0950 (H) : In position to lower rubber boat. As boat approached island, five aviators rounded rock in their own life raft.

1015 (H) : All hands on board. Picked up: 1st, Lt. C.F. BAIYUTIN, USA; 2nd, Lt. R.F. OWEN, USA; Cpl. W.T. ZEITH, USA; Cpl. T.S. VENISON, USA; and CO. P. RODRIGUEZ, with 8 piece of shrapnel in his leg. Position: Latitude 00-01.5' N, longitude 119-41.5' E. Those last five were man-bers of the same LISMATOR crew on the water and was previously aboard the same LISMATOR crew. All ten men were sunk down, by the rest of the crew. It is interesting to note how that half the number of crew landed north of the shore. Dated to report search out. As had just made, in case there were others on the island.

1123 (H) : Give up search and headed for initial point.

-13-

— page 150 —
1125(H) 1125 to 1145(H) 1151(E) 1153(E) 1158(H) 6 October 1136(E) 1237(E) 1239(E) 1315(E) 1900(E) 7 October 1041(E) 1051(E) 1955(E) 2136(E) 2322(E) 8 October 0823(H) #72.

— page 151 —
10 October
0608(H) 'Coorod port side to oil barge in Zimouth Gulf.
1145(H) U.S. Y-10 enhorce 200 yards outboar of oil barge.
1250(H) Get underway en norcoar port side to U.S. Y-10 to fuel ship.
1940(H) Deported Zimouth Gulf.

11 October
1406(H) Sighted northbound U.S. GRUPPY, with high periscope.

13 October
0945(H) 'Coorod starboard side to U.S. GRUPPY, Frumentle.

— page 155 —
1. 2. 3. 4. 5. 6.
Date: 6. 6. 7. 7. 8. 8.
Time (Zone): 0753(K) 1400(K) 0958(K) 1712(K) 0751(K) 0500(K)
Position: Lat. 3-41 S 2-58 S 100-18 N 01-34 N 3-53.9 3-58 N
Long. 124-58 125-47 125-60 125-45 124-17 124-13
Speed 11.1 12.3 13.2 13.7 13.4 7.9
Course 0450 T 0700 T 1340 T 1000 T 3300 T 3300 T
Trim SURF. SURF. SURF. SURF. SURF. SURF.
Min. Since Last SD Radar Search: 0 0 0 30 Sec. 0 0
Number 1 3 1 1 1 1
Type UNK. UNK. DAVD UNK. UNK. UNK.
Prob. Mission UNK. UNK. UNK. UNK. UNK.
How Contacted R R R & SD SD R R
Init. Range (Mi) 30 13 35 10 8 36
Elevation Angle UNK. UNK. 40 20 UNK. UNK.
Plane's Range & Rel. Brg. when it Detected S/M: ND ND ND ND
(State) MOD. MOD. SCOUT SCOUT SCOUT SCOUT
Sea (Rel. Direct.) 1200 T 1200 T 1900 T 1900 T 2000 T 2000 T
Visibility (Mi) 5 30 10 30 30 30
(Ht. (Ft) 1800 4000 6400 2000 2000 2000
Clouds (Percent Overcast) 100 80 50 70 40 40
Rel. Brg. (

— page 157 —
13. 14. 15. 16. 17. 18.
Date: 14: 15
Time (Zone): 1831(I): 0703(I): 0759(I): 0920(I): 1114(I): 1339(I)
S Posit: 1et. 06-27- 06-26- 06-28 N: 06-32 N: 06-43 N: 07-09 N
UB Long: 122-50-122-43-122-44-122-47 122-57-122-58
B Speed: 45

— page 158 —
20. 21. 22. 23. 24.
Date: 15 16 16 16 16
Time (Zone): 15:00 15:00 15:00 15:00 15:00
Posit: Lat. 07-06 M, 06-03 N, 06-03 E, 06-03 N, 06-03 E
Log. 12:24 6 12:24 6 12:24 6 12:24 6 12:24
Speed 0 0 0 0 0 0
Course 21:00 T 21:00 T 21:00 T 21:00 T 21:00 T
Trim 3.5 3.5 3.5 3.5 3.5
Min. Sinc Last SD Radar Search 30 Sec. 30 Sec. 30 Sec. 30 Sec. 30 Sec.
Number 1 1 1 1 1
Type UNK. UNK. UNK. UNK. UNK. UNK.
Prob. Mission UNK. UNK. UNK. UNK. UNK. UNK.
How Contacted R SD R SD R R
Init. Range (M) 12 8 17 6 18 14
Elevation Angle UNK. 1/20 UNK. 1/20 UNK. UNK. UNK.
Plane's Range 4 5 MD MD MD MD MD
Rel. Brg. Th. 1 1 1 1 1
it Detected 5/7

Sea (Seaboard) 1:30:00 1:30:00 1:30:00 1:30:00 1:30:00
(Rel. Dist. 130) 17:00 17:00 17:00 17:00 17:00
Visibility (1) Over 30:5 10 10 10 10
Clouds (Ht. (Ft.) 6000 3000 3000 5000 5000
(Covercast 60 20 40 50 80
Moon (Rel. Brg. 1 1 1 1 1
Angle 1 1 1 1 1
(Pet. Illum. 1 1 1 1 1
Type of S/M camouflage on this patrol: Gray, pink daubed on
Shields.

-22-

— page 159 —
25. 26. 27. 28. 29. 30.
Date: 16 16 17 17 17
Time (Zone): 1333(7) 1340(7) 1847(7) 1201(7) 1700(1)
Posit: Lat. 06-35 N 06-33 06-45 N 06-41 N
Long. 123-25 123-27-123-23 123-03-
Sqrd 3 3 3 3 3
Course 3 3 3 3 3
Trim 3 3 3 3 3
Min. Since Last 30 Sec. 30 Sec. 30 Sec. 30 Sec. 30 Sec.
SD Rder Search
Number 1 1 1 1 1
Type 1 BERTY UNK. BERTY BERTY BERTY BERTY
Prob. Mission UNK. UNK. UNK. UNK. UNK.
How Contacted SD R SD SD R SD R SD
Init. Range (Mi) 16 16 12 9 8
Elevation Angle 1/2 1/2 1/2 1/2 1/2
Pine's Range & ND ND ND ND ND
Tel. Ev' wher.
it Stated 6 6 6 6 6
Sea Range(ft) SLIGHT SLIGHT SLIGHT SLIGHT SLIGHT
Sea Range(ft) 1600 1600 1900 1700 1700
Visibility (ft) 10 10 10 10 10
(Ht. (Ft) 5000 5000 6500 6500 6500
Clouds (Percent) 80 80 80 80 80
(Nel. Brg. 1 1 1 1 1
Moon (Angle 1 1 1 1 1
(Pot.Illum. 1 1 1 1 1
Type of 5/7 camouflage on this patrol: Cray, pink daubed on
shader.

-23-

— page 160 —
31. 32. 33. 34. 35. 36.
Date: 18. 18. 18. 18. 18. 19.
Time (Zone): 0930(T) 1011(T) 1202(T) 1136(T) 1258(T) 1014(T)
Post: 06-33 N 06-35 N 06-35- 06-35- 06-35- 04-44 N
Long.: 122-57 122-57 122-57 123-00 123-01- 121-34
S/S: 9.8 7.3 7.3 3.2 2.9 10.1
Course: 0000 T 0000 T 0900 T 0900 T 0900 T 2500 T
Trim: SURF. PTR. PTR. PTR. SURF.
...: ... ...

— page 161 —
37. 38. 39. 40. 41. 42.
Date: 19. 20. 22. 22. 23.
Time (Tone): 1:25(T) 1:44(S) 1:08(T) 1:05(S) 1:62(H) 1:08(T) 1:05(H)
Posit: Lat. 04-44 N 08-01 Y 09-49 09-50 N 09-52 Y 09-42 N
U Long. 121-34 121-28 121-35 121-39 121-58
B Speed 6.2. 13.9. 10.0 13.3 10.3 11.2
Course 2650 T 1040 T 2700 T 1350 T 1350 T 2100 T.
Trim 1.3.

— page 162 —
24 26 26 28 28
: 50 50 50 50 50
: 7.8 7.8 7.4 4.0 13.7
: 0300 2150 2150 2150 2200
: 30 30 30 30 30
: 20 20 20 20 20
: 20

— page 164 —
25. 56. 57. 58. 59. 60.
Date: 1. 11. 1. 1. 1. 1.
Time (Zone): 00:00. 00:00. 00:00. 00:00. 00:00.
Posit: Lat. 50. 30. 30. 30. 30. 30.
Lons. 17. 30. 17. 17. 17. 17.
Speed 5. 5. 5. 5. 5. 5.
Course 0. 0. 0. 0. 0. 0.
Trim 0. 0. 0. 0. 0. 0.
Min. Since Last SD Radar Search 20. 20. 20. 20. 20.
Number 0. 0. 0. 0. 0. 0.
Type 1. 1. 1. 1. 1. 1.
Prob. Mission 1. 1. 1. 1. 1. 1.
How Contacted 1. 1. 1. 1. 1. 1.
Init. Range (1) 12. 12. 12. 12. 12.
Elevation Angle 1. 1. 1. 1. 1. 1.
Plane's Range & Alt. 1. 1. 1. 1. 1. 1.
Rel. Eng. when it Detected 1. 1. 1. 1. 1. 1.
Sea (State) 1. 1. 1. 1. 1. 1.
Seal (Seafront) 1. 1. 1. 1. 1. 1.
(Rel. Direct.) 1. 1. 1. 1. 1. 1.
Visibility (1) 5. 5. 5. 5. 5. 5.
(Int. (Tr.) 1. 1. 1. 1. 1. 1.
Clouds (Frequent) 1. 1. 1. 1. 1. 1.
(Overcast) 50. 50. 50. 50. 50.
Moon (Rel. Eng. Angle) 1. 1. 1. 1. 1. 1.
(20. 11. 11. 11. 11. 11.)
Type of S/M camouflage on this patrol: Grey, pink daubed on
-28-

— page 166 —
67. 68. 69. 70. 71. 72.
Date: 4. 16. 15. 5. 7. 8.
Time (Zone): (Oct. 1st) 10:00. (Oct. 2nd) 10:00. (Oct. 3rd) 10:00. (Oct. 4th) 10:00. (Oct. 5th) 10:00. (Oct. 6th) 10:00. (Oct. 7th) 10:00. (Oct. 8th) 10:00. (Oct. 9th) 10:00. (Oct. 10th) 10:00. (Oct. 11th) 10:00. (Oct. 12th) 10:00. (Oct. 13th) 10:00. (Oct. 14th) 10:00. (Oct. 15th) 10:00. (Oct. 16th) 10:00. (Oct. 17th) 10:00. (Oct. 18th) 10:00. (Oct. 19th) 10:00. (Oct. 20th) 10:00. (Oct. 21st) 10:00. (Oct. 22nd) 10:00. (Oct. 23rd) 10:00. (Oct. 24th) 10:00. (Oct. 25th) 10:00. (Oct. 26th) 10:00. (Oct. 27th) 10:00. (Oct. 28th) 10:00. (Oct. 29th) 10:00. (Oct. 30th) 10:00. (Oct. 31st) 10:00. (Oct. 32nd) 10:00. (Oct. 33rd) 10:00. (Oct. 34th) 10:00. (Oct. 35th) 10:00. (Oct. 36th) 10:00. (Oct. 37th) 10:00. (Oct. 38th) 10:00. (Oct. 39th) 10:00. (Oct. 40th) 10:00. (Oct. 41st) 10:00. (Oct. 42nd) 10:00. (Oct. 43rd) 10:00. (Oct. 44th) 10:00. (Oct. 45th) 10:00. (Oct. 46th) 10:00. (Oct. 47th) 10:00. (Oct. 48th) 10:00. (Oct. 49th) 10:00. (Oct. 50th) 10:00. (Oct. 51st) 10:00. (Oct. 52nd) 10:00. 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(Oct. 305th) 10:00. (Oct. 306th) 10:00. (Oct. 307th) 10:00. (Oct. 308th) 10:00. (Oct. 309th) 10:00. (Oct. 310th) 10:00. (Oct. 311st) 10:00. (Oct. 312nd) 10:00. (Oct. 313rd) 10:00. (Oct. 314th) 10:00. (Oct. 315th) 10:00. (Oct. 316th) 10:00. (Oct. 317th) 10:00. (Oct. 318th) 10:00. (Oct. 319th) 10:00. (Oct. 320th) 10:00. (Oct. 321st) 10:00. (Oct. 322nd) 10:00. (Oct. 323rd) 10:00. (Oct. 324th) 10:00. (Oct. 325th) 10:00. (Oct. 326th) 10:00. (Oct. 327th) 10:00. (Oct. 328th) 10:00. (Oct. 329th) 10:00. (Oct. 330th) 10:00. (Oct. 331st) 10:00. (Oct. 332nd) 10:00. (Oct. 333rd) 10:00. (Oct. 334th) 10:00. (Oct. 335th) 10:00. (Oct. 336th) 10:00. (Oct. 337th) 10:00. (Oct. 338th) 10:00

— page 168 —
1, 2, 3, 4, 5
Time Bomb: It Water: (To be read second): ? ? ? ? ?
Time Bomb: Exploded: (To nearest second): 1258 1258 1258.5 1303 1303
Estimated Proximity: of Explosion (Yds.): 7000 7000 7000 7000 7000
S/1 Course at Explosion Time: 050° T 090° T 090° T 090° T 090° T
S/A Speed at Explosion Time: 2.5 2.5 2.5 2.5 2.5
S/A Depth at Explosion Time: 62 62 62 62 62

REVISION INFORMATION IS NOT STYLIZED TO THIS VESSEL.

— page 169 —
1. TORPEDO ATTACK NO. ___ 1  TORPEDO NO. ___ 5
Time 0527(I)  Date 13 Sept. 1944  Lot. 5-36.8 N.  Long 123-51.8
TARGET DATA - DANGER INFLICTED

Description - Two high speed mine sweepers of A' class. Constantly rode with S/S radar at 13,500 yards. Sea was calm, half moon, cloudy and hazy. Visibility good.

Ship(s) Sunk - None.

Ship(s) Damaged or Probably Sunk - None.

Damage determined by - Not applicable.

Target Draft 6' Course 140° T. Stead 17 Range 2600

CVR 8710 DATA

Speed 12 Kts. Course 110° T. Depth SURFACE Angle 60°

FIRE CONTROL AND TORPEDO DATA

Night surface attack, using radar ranges and TFT bearings. Attack devolved into stern chase. Due to his speed and our initial position, unable to and our forward fire control, our initial position, unable to and our forward

— page 170 —
1
Tubes Fired -
Track Angle
Gyro Angle
Depth Set
Power
Hit or Miss
Strict
Mark Torpedo
Serial No.
Mark Exploder
Serial No.
A - Action Set
Actuation Actual
Mark Warhead
Serial No.
Explosive
Firing Interval
Type Spread
Sea Conditions
Overhaul Activity
Remarks:
T.D.C. Offset (1/40)
Cabin
U.S.S. GRIM
Torpcoes ren hot, straight, and

-34-

— page 172 —
4'50 calibers:
63 rounds high capacity, 3498
20 rounds common service, 4244
8 rounds common service, 3333

2017:
S40 rounds (Locked 2 HIT - 1 SET)

.50 Calib:
560 rounds (Locked 1 TRACKER - 1 BAIL - 1 AP)

4" gun was erratic several times, due to sluggish firing
pedal. Fired frequently by infantry. Other guns performed well,
with normal number of jams on fifty calibers.

-36-

— page 174 —
1. Submarine, picked up at ten thousand yards and lost at twelve thousand yards. Signal was S-5.
2. Nine Swans (2), picked up at ten thousand yards and lost at fourteen thousand yards. Signal was S-5.
3. Hostile Shih, twelve thousand tons, picked up at twenty-four thousand yards. Signal was S-5.
4. Vary small escort ship. Picked up at eighteen thousand yards and lost at eight thousand yards. Signal was S-5.
5. Contact was made with a frigate from three to seven thousand yards.

Transmitter: This was probably caused by a transponder from a frigate. Possible cause was too much heat. The form of the transmitter was found to be charged.

Transmitter: The type 5D21 tube of 5T receiver was found to be replaced after two hundred hours' operation.

Transmitter: The tubes having five hundred hours' operation.

Transmitter: A few other minor 5T troubles were encountered; however they are very common, so are not listed.

Transmitter: It seems very important that eighty percent of all breakdowns in the 5T receiver caused by too much heat; it is recommended that some type of cooling system be constructed and installed.

Transmitter: The operation of the 5D radar on this patrol proved very satisfactory. There were approximately fifty plane contacts, the ranges of most of which were from twelve to fifteen miles.

Transmitter: Three sets of type 2014A tubes were exceeded. Total hours use of equipment this run was about seven hundred.

Transmitter: There was only one breakdown of 5D tube, which required 72 hours to find "n" repair. The transmitter was 5D

— page 176 —
21 2000 15 days
Liriting factor this patrol - Desp'toh Orders.

(U) RADIO AND NAVY COMMUNICATIONS
No interference was encountered. However, very frequently when near a high, mountainous area, we experienced echoes at various ranges, from zero to 50,000 yards. By varying the direction of the transmitting antenna, we were able to improve the signal.

(V) DEFENSE
The employment of the vessel during this patrol was not conducive to the sinking of the ship. This fact, although regrettable, did not prevent the crew from maintaining a high level of vigilance. In this case, the crew was able to maintain a high level of alertness and readiness.

Reporting to the patrol officer, attention is invited to the plan controls in the 'lincano Sea', the conclusion being that an airfield of some size is about 7.0 miles in existence on Penelope Island.

From the controls of numerous small sailing vessels it is concluded that the enemy is transporting a number of supplies in this manner. From interrogation of those vessels it was determined that each was being transported on one direction, namely to Pikesberg, and super was being carried on the return trip. It is now thought to be the first of the natives arrived without their cargo that they would be beached by the Japs. The success of this interrogation was through the efforts of one of the Indonesian natives which we had on board. An interceptor is greatly needed for this work. It is suggested that if a Filipino or Indonesian was by could be carried, his services in this field would prove highly gratifying.

— page 180 —
1/2/1944
Serial 01294
1 November 1944

SECOND ENCLOSURE TO:
USS LITIGO Conf. Ltr.
A16-3, No Serial or date.
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. MINGO (SS261) - Report of Fifth War Patrol - Comment on.

1. MINGO's Fifth War Patrol was conducted in the MINNAIAO and CELEBES SEAS, and in LAKSAKI STRAIT. It was the first war patrol for Lieutenant Commander J. R. MADISON, U.S.N., in command of a Fleet Type Submarine.

2. During the morning of 5 October, MINGO was sighted by a high flying Liberator bomber which circled for about twenty minutes, challenging intermittently by Aldis Lamp. MINGO used the Aldis Lamp, 12 inch searchlight, VIZ, radio, and displayed a large Ensign on the after 20mm deck, but her efforts to identify herself were unsuccessful. The plane headed away, but returned six minutes later and dropped a hundred pound bomb close abeam. The plane then established communication on VIZ. Prompt use of the aircraft emergency identification flare might possibly have averted this incident. These flares should be mounted and ready for instant use while on the surface performing Lifeguard duties.

3. The award of the Submarine Combat Intelligence (SIC) was authorized for this patrol.

-1-202

— page 181 —
12a/r
Serial: 01294
1 November 1944

FE24-71/A16-3
UNITED STATES NAVY
Serial: 01294
1 November 1944

SUBJECT: U.S.S. MINCO (SE261) - Report of Fifth War Patrol.
PATROL - Comment on.
6. The Force Commander congratulates MINCO's Commanding Officer, Officers and Crew on the general conduct of this patrol, and on inflicting the following damage on the enemy:

SUNK (By gunfire)
4 - MIS (Armed Trawlers)
900 Tons (Gun Attack No. 1)

M. N. CHRISTIE,
ORIGINAL COPY

DISTRIBUTION:
ComInch (3) - Direct (3) - CDR-71.3 (2)
Vice Opnav (2) - Direct (2) - CDR-71.4 (2)
Vice Opnav Op-23o (1) - CDR-71.5 (2)
ComlstFlt (1) - DivComSubRon-12 (1)
Com2ndFlt (1) - DivComSubRon-16 (1)
Com7thFlt (2) - DivComSubFlt-10 (1)
ComSublstFlt (30) - S/M School, N.I. Conn. (2)
ComSub2ndFlt (4) - Subd, Mare Island. (2)
CTF-71 (2) - S/Mg 7TH INT (1)

CTF-72

P. F. STRAUB, J.P.,
Flag Secretary.

THIS REPORT WILL BE ISSUED PRIOR TO ENTRY INTO ARMED CONGLOMBED WATERS.

- 2 -

— page 182 —
14 NOV 1944
Al6-3(F-3-4/whr)
Serial 03890
CONFIDENTIAL
THIRD ENDORSEMENT to:
USS MINGO Conf. Ltr.
Al6-3, No Serial or
date.
From:
To:
Subject:
1. Forwarded.

R. N. CUTLER
By D. D. DAVIS

— page 183 —
29 December 1944.

From: The Commander-in-Chief, United States Fleet.
To: The Commander-in-Chief, United States Fleet.
Via: (Portfolio Channel).

Subject: U.S.S. INTOC - Report of War Patrol Number SIX.

Enclosure: (A) Subject Report.
(B) Ticket Charts for Commander Task Force SWORTHY only.

1. Enclosure (A), covering the sixth war patrol of this vessel conducted in the SOUTH CHINA SEA during the period 6 November 1944 to 29 December 1944, is forwarded herewith.

J.R. TADLISON.

DECLASSIFIED ART. 0445, OPNAVINST 5510.0C

BY: [Signature]

DECLASSIFIED

104857

— page 184 —
6 November 1944

The following officers and chief petty officers were activated during this patrol with total number of previous patrols as indicated:

| Name and Rank | No. of Patrols |
|||
| John R. MALLISON | 7 |
| Henry G. HAYNES, Jr. | 0 |
| Harlan V. SPADOS | 1 |
| Clarence R. CRANE | 6 |
| Naden J. J. STIMAC | 6 |
| William R. DAVIS | 4 |
| Leslie J. HARRIS, Jr. | 3 |
| Irwin A. ZUCKMAN | 4 |

| Name and Rank | No. of Patrols |
|||
| Henry L. BORKENHAGEN | 5 |
| William L. HALLICK | 5 |
| Richard V. TRAVA | 7 |
| John N. BARBOUR | 10 |
| Francis R. DIXON | 5 |
| Elmer A. HIGGADEN, Jr. | 0 |
| Richard N. HAYES | 10 |

1300 Underserved enemy patrol area via Exmouth Gulf. Conducted day and night approaches on escort.
2300 Released escort. Departed submarines exercise area.

7 November 1944

Enroute Exmouth Gulf. Conducted daily fire control drill and dawn trim dive.
1037 Exchanged calls with U.S.S. BURNAILL, south bound.

— page 185 —
1600
Exerclased crew at general drills.

8 November 1944
Enroute Exmouth Gulf. Made dawn trim dive -2. 3/4" and conducted fire control drill.

9 November 1944
Moorad alonctide oil berge at Exmouth Gulf. Fueled to capacity.
1928 2215
Underawey. Cleared Exmouth Gulf. Enroute Patrol area.

10-11 November 1944
Enroute patrol area. Made dawn trim dives. Conducted daily fire control drills.

12 November 1944
Enroute patrol area. Made dawn trim dives. Conducted daily fire control drill. CHICKAHOGA, south. Exchanged calibre with U.S.S. CHICKAHOGA, south bound. Reactivated rocket when that Lonnok was quiet.
2100
Commodore transmitt of Lonnok Stair at four engine spaced.
2223
Radar picked up patrol vessel (Skip Contact #1) at 65:00 yards. Evaded to the north eastward. Loc. redder contact on patrol, Patrol appeared to be patrolline. Five miles off. East coast in northeast southwest. Lines at 12 knots.

2320
Commodore transmitt of Lonnok Stair.

13 November 1944
Enroute patrol area. Nado morning trim dive. Conducted daily fire control drill. Numerous sail boats in sight throughout day. Avoided sail boats as much as possible. All appeared to be native fishing vessels.

14 November 1944
Enroute patrol area. Made dawn trim dive. Conducted daily fire control drill. Sail boats not so numerous today.
2100
Commodore transmitt of Karimata Strait.

— page 186 —
15 November 1944
    Patrols patrol area.
    Completed transit of Kerimeta Strait. No patrols on Pacific vessels encountered. Ran submerged during daylight to avoid detection near Karimata Strait.

: 16 November 1944
    Patrols patrol area. Submerged at dawn to patrol Skimmer-3/1-Takao trade routes. Un-ventured by submarine.

: 17 November 1944
    Decided to patrol on surface today, east of passage between Great Natotena and South Natotena Islands.
    0150-0500 Transmitted passage south of Great Natotena Island.
    0601 Dam trim dives. Patrols sixty mile line bearing 330° - 150°T, covering eastern approaches to passage.

: 18 November 1944
    Patrols on the surface. Covered routes and found north of North Natotena Islands.
    1400 Decided to patrol to the eastward of Great Natotena Island.

: 19 November 1944
    0130 Cr. station to eastward of Great Natotena. Set course 2530T., to transit passage south of Great Natotena.
    0852 (Air Contact #1) Flare on 5D radar, 10 miles, closed to 8 and opened to 12 miles and faded out.
    1010 Submerged. Commenced submerged patrol, tasking periscope observation survey five minutes.
    1221 (Slip Contact #2) Sighted one large tanker with two escorts, range about twelve miles, zigzagging on base course 220°T. Decided to track and attack at night.
    1343 Surface and commenced end-around at four engines speed.
    1500 Target's base course 2500T. Manned APR at sunset.

— page 187 —
2010
Radar picked up target at 16,000 yards. Tent to battle stations.
2011 Range 15,000 yards. Target is zig zagging on base course 2500ft., 3000 zigs every fifteen minutes. On escort is on target! is starboard bow, other is close on port quarter. As the night is dark, decision to cross under the stern of target and approach on tracers strafroard side.
2023 At 10,000 yards range, target zigged to 2500ft., angle on the bow 3000 port. On parallel and opposite course now, all stopped.
2030 At range of 6200 yards, loading escort opened fire with 30 and 37 man. and fired 3 rounds. 2nd flare. Escort commenced closing distance on radar on 2,000, but he rapidly. No in radar. All raised firing, commenced opening out to the south. This inrrited of all ships to starboard. The escort opened up with 4' or 5' gun.
2032 General opened up with 4' or 5' gun.
2033 Shells whizzing by overhead, on in deflection, over in range. Escort turned on searchlight. Named in order to turn out seaward fire on close escort. Changed course to the left in 100 yards. Escort searching out, 2300 yards, 20 m. range changed to 2000 yards. 3rd fire. Before us around and still shooting 3' and 37 m. Range opening slowly. Range opening slowly to 2000 yards. The port escort started to follow us, but at 2037 commenced dropping his depth charges at range 6000 yards, and returned to the torpedo, range 6000 yards. Escort opened fire on range on a weather course, now at 10,000.
2044 Range to escort 4300 yards. He's still shoot. In but not coming to close now.
2050 The leading escort however is staying right on our till, range has opened slowly to 5200 yards. Firing bursts of 2x to 6x 3" shells every few minutes.
2054 Barrage or 3" shells, not close, range to escort 5150 yards.
2100 Steerage course 1300m., escort astern steering 1500m. Changed course in 100' inrrmants to 1100m. Blow Safety and M. 4 F.P.A. Making 17 knots and escort is tracking at 17.5 knots. Escort is out of attack at 5400 yards range, but he continues to stay on our trail, changing course shortly after we change. Escort still firing away few minutes.
2103-08 Escort firing 3' am.
2114 Escort opened fire again, range 6650 yards.

— page 190 —
0346
: 0437, 30-
: 0438
: 0440
: 0443
: 0444
: 0448
: 0449
: 0450
: 0451
: 0500
: 0516
: 0517-
: 0518, 40
: 0520
: 0525
: 0600

Subj: U.S.S. MINCO - Report of Sixth War Patrol.

Capsule: One right to bring stern tubes to bear.

Sew three hits from the bridge, one forward, one slightly abaft M.O.T., and one just forward of M.O.T. After third target burst into flames over its entire range, lighting up the entire scene. Stunned explosion on target, nothing but fire visible. Started on target, nothing but headed toward, but stayed at perilous depth when he presented a 90° port cradle on the bow and crossed stern, gradually dropped to tanker's track. The burning, still unspotted the escort. He was definitely identified as a PGM(E) type, got set on escort, range 1500 yards. Fired stern tubes at escort, depth set at 3 feet, target turning towards, average gyros 168°. Saw first two run ahead, right run astern, second fire hit looked like good hit. Hit was heard in Corrigan Tower and after torpedo room, timed hit for #8 tubs. Target shuddered and sent up bellows or steam in visibility of main mast. Torpedo hit on about 300 port track. To could see mother hit bow of escort, smoke, and flame, target appeared dead in water, two escorts coming in from one starboard quarter. No went deep. Found 70 -10 magnetic gradient at 250 feet. One depth charge very close. Charge, not too close. Two depth charges, not close. Two depth charges, distant. One explosion, very far away. One explosion, very

— page 191 —
0730 Both remaining escorts shifted frequency to 13,8 Kcs.
0830 North escorts opened out and were lost by sound on 320°T.
1035 At periscope depth. Two separate columns of smoke visible, bearing 205°T., and 210°T.
1115 Surfaced.
1230-1320 Passed through wreckage and debris. There were about ten capsized life boats, and one 36 foot (about) landing craft intact. About 1000 to 1500 oil drums littered the surface, some of which were still modular, No survivors were seen. Took pictures of wreckage and caperstake seen. Took 1330 1330. Took 1330

— page 192 —
25 November 1944

Maintained surface patrol all day; made dawn trip live.

: 0908 Contact on ED at 22 miles (Air Contact #4). Ranges maintained steady and faded out. Planes not sighted.

: 1502 Plane on SD at 16 miles (Air Contact #5). Ranges closed to 14 miles; then opened to 17 miles and faded out. Planes not sighted. Thrust air exhaust missiles possibly be an air sweep from Hilt or Runet Bay for a westbound convoy. Decided to patrol in same vicinity not sighted and tomorrow. Convinced all west-bound over routes south of S. Hawaii Shots.

: 20 November 1944

Patrolling on surface the direct route from Hilt or Runet Bay to Great Nantoua.

: 0605 Made dawn trip alive.

: 0318 Plane on SD at 26 miles (Air Contact #6). Closed sighted than opened to 26 miles and faded out. Planes not sighted.

: 2200 Received CTF 71's message changing patrol area. "Sent to two enemy squad and headed for area."

: 1 December 1944

Arrive new patrol station.

: 1000 Passed through wreckage, debris, and oil drums. Looked like some wreckage from our attack on the 25th.

: 1330 Received CTF 71's message cancelling change in area. Patrolled Hilt-Mamilla outer route on the surface for rest of day.

: 2000 Set course 2100T. to patrol off Brunei Bay tomorrow.

— page 193 —
1. U.S.S. NINGO - Report of Sixth "Far Patrol.
2. December 1944
0558 Submerged for day off Brunel Bay.
1850 Surfaced. Set course 240°T. to patrol off Miri tomorrow.
2. December 1944
0610 Submerged for day off Miri.
1843 Surfaced. Set course 335°T. to patrol line between Louisa Reef and Friandashi Shoal.
4. December 1944
0602 Made dawn trip dive.
Patrolled west of Louisa Reef and north of Friandashi Shoal on the surface.
5. December 1944
0605 Made dawn trip dive.
Patrolled sixty mile line, 0300 - 130°T. north of Friandashi Shoal on the surface.
6. December 1944
0604 Made dawn trip dive.
Maintained surface patrol between Louisa Reef and Royal Charlotte Reef.
2000 Commenced working to westward to patrol west of North Luconia Shoals tomorrow.
7. December 1944
0605 Made dawn trip dive. Maintained surface patrol in general vicinity to westward of North Luconia Shoals on course 200°T., working to southward to patrol north of Ruchika, Borneo tonight.
2030 Sound picked up pinning bearing 263°T. Changed course to 340°T., commenced tracking.

— page 194 —
2035
Header made contact, range 14,000 yards.

2055
Sighted two groups of flares over convoy.

2129
Obstructed contact report to HAGENHEAD and TADDLER.

2138
Received message that HAGENHEAD had missed contact on port flank and orders to attack from the starboard flank if possible.

2130-2230
Convoy approached unsupported, tracking erratically on various courses. The flares at 2035 may be related in some way. At 2150 sea to 1300T, to re-aim radar course. 2232 Began contact, changed course to 600T, commenced tracking again. Convey has scuttled down coast on base course 0200T.

2258
Sent to battle stations.

2300
Received message that HAGENHEAD had missed with six torpedoes.

2310
Headed in on steborned track, range 11,800 to launched.

2314
Sighted by leading torpedo escort, range 6300 yards. Escort fired two red flares and headed toward. Went ahead flank, came last to 0900T. Escort followed, followed by trailing escort. As later instruction developed, this left three tankers and one Chief and in formation, with PADDLE and HAGENHEAD on port flank.

2320
Sent message to pack saying that two escorts were chasing us to eastward.

2314-2327
Obstructed out at flank exposed on course 0900T. Both escorts were tracking at 14 knots. Range opened to 3650 yards. 2327 Changed course to 0500T, 2 escorts continued tracking at 14 knots on 0900T.

2335
Range on escorts commenced closing, changed course to 0450T.

— page 195 —
2350  C.Herncud course to 270°T, when range to escorts opened to 9500 yards (Escorts now eleven miles from convoy).

: 2359  Stoped. Both escorts abeam to port pinging, range 9800 yards.

8 December 1944

0004  S.Cnt message to pack telling them we had two escorts about eleven miles east of convoy.

0006  Tanker, bearing 250°T., distance seven miles, burst into flames and later sank (HAIDEMHAD's second attack).

0007  C.Herncud course to 060°T.

0011  Changed course to 270°T., went ahead flank.

0022  C.Herncud course to 295°T.

0024  Escort on port bow, range 10,500 yards. Range closed to 8300, changed course to 050°T. at 0027. Range to escort closed to 7300 yards.

0042  Changed course to 020°T.

0048  Ranges opened to 10,000 yards, changed course to 270°T.

0951  Picked up another escort bearing 250°T., range 10,400 yards.

0053  C.Herncud course to 340°T. Range closed to 7300 yards.

0100  Received message from HAMMERAD that convoy was southwest of fire on course 2850T., speed 16 knots.

0102  Changed course to 100°T., both escorts on port quarter now heading toward at 14 knots, range 7100 and 6100.

0105  S.Cnt message to pack saying we had two escorts chasing us to northward.

0107  C.Herncud course to 020°T.

— page 196 —
0112  Out turbo blowers on all main ballast tanks.
0115  Quarter moon rose from behind cloud bank.
    Lost radar contact on one escort.  Near escort
    astern at 895 yards.
0115-30  Two distant explosions astern which sounded
    like ship blowing up, or possibly torpedo hits.
0138  Lost escort astern, range about 12,000 yards.
    Kannon SD radar, keying in once every five minutes.
    The moon is very bright and glares from Kucheg
    or Miri are possible.
0145  Secured from battle stations.
0245  Received message that RADMUS sank one large
    tanker and the Chifori.
0600  Made dawn trim dive.  Maintained surface
    patrol north of Friendship Shoals at one engine
    spool.

9 December 1944
0617  Maintained surface patrol east of Riffman
    Bank.
0607  Made dawn trim dive.
2200  Joined KATZENHAD and RADMUS in search north
    of North Luconia Shoals.  Maintained station 20
    miles to east of KATZENHAD.

10 December 1944
0511  Set course 000°C.  Enroute to station on recon-
    nissance line.
0607  Made dawn trim dive.

11 December 1944
0618  Enroute to station on reconnaissance line.
0700  On station, patrolling on the surface.  Main-

— page 197 —
U.S.S. MINGO - Report of Sixth War Patrol.

tained patrol on 30 miles line bearing 300°T. - 120°T.

2307  Exchanged recognition signals with IAPON on SJ radar.

12 December 1944

Maintained surface patrol on reconnaissance line.

0613  Made dawn trim dive.

13 December 1944

Maintained surface patrol on reconnaissance line.

0615  Made dawn trim dive.  Fiery Cross Shoals visible through periscope at eight miles.

1500  Received contact report from IAPON on single ship.  Changed course to 305°T, and went ahead flank to intercept.

1545  Sighted smoke bearing 310°T.  Commenced tracking.

1940  Ship identified as a properly lighted hospital ship, course 040°T., speed 13 knots.  Tuned SJ radar and tracked ship out to 27,000 yards.  Resumed patrol on reconnaissance line.

14 December 1944

Maintaining surface patrol on reconnaissance line.

0437  Contact on SJ radar at 9000 yards.  Zommocod tracking.

0440  Went ahead flank speed, unable to close contact.  Believe ship was a destroyer as radar lost contact at 12,000 yards.  After tracking the hospital ship out to 27,000 yards yesterday, believe radar could have maintained contact longer if ship had been anything larger than a destroyer.  Ship was zig zagging on base course 070°T.  at 21 knots, probably enroute Manila.

0603  Cleared contact report.

0616  Made dawn trim dive, and resumed patrol on reconnaissance line.

— page 198 —
15 December 1944
Maintained surface patrol on reconnaissance line.
0615 Raised stern trim dive.
1705 Started mast on horizon, bearing 340°T. Went ahead fire in command trawling. Target was a two stage destroyer, 12.5 miles on 230°T at 19 knots. Unable to close.
1930 Cleared contact report.
2030 Converted No. 3 and No. 5 fuel ballast tanks.
2230 Received order to join U.S.S. GUAYTIMA in offensive reconnaissance off Curaçao Bay. Went to two engine speed and set course 300°T, for new station.
16 December 1944
Enroute patrol station off Curaçao Bay at two engine speed.
0627 Made dawn trim dive.
1700 Radar contact on land at 50,000 yards.
1748 Sighted unidentified float type plane (Air Contact #7), bearing 330°T, on northerly course. Planes closed to 7 miles and then opened to 14 miles and disappeared.
Typhoon from northeast is building up. Steering 030°T, parallel to coast at 2/3 speed, making two knots good.
17 December 1944
0104 Avoided small unidentified control boat (Ship Contact #8).
0607 Submerged off Curaçao Bay. Typhoon is getting worse. Able to maintain periscope depth for observation at standard speed, but unable to see.

— page 199 —
0735    Sighted float type plane (DAVE), bearing 326°T.
    (Air Contact #9).

: 0741    Sound picked up pingings, bearing 313°T.

: 0745    Manned tracking party. Sighted tanker at estimated 7000 yards range (Ship Contact #9).

: 0749    Battle stations submerged.

: 0753    Changed course to 125°T. to close tanker.

: 0755    Sighted minimum of four float type planes (Air Contact #9).

: 0824    Sighted two ISB class battleships, one or two at 100°T. at 17 knots. Unable to close. Nearest estimates of the range was 8000 yards.

: 1023    Surfaced. Commenced transmitting contact report. Cleared contact report. Transmitted each group of amplifying report twice (VHF). VHF asked for repeat on six cruises. Transmitted repeat but failed to obtain receipt, because we were forced to submerge.

: 1050    Submerged when plane closed rapidly from ten to two miles (Air Contact same as #9).

: 1112    Secured from battle stations.

: 1141    Surfaced. Cur contact report already on the air so did not retransmit.

— page 200 —
1143
"Tent ahead at flank speed, course 130°T. In an attempt to regain contact. Could only make 15 knots due to heavy seas.

1215
Plane contact on GD radar at 6 miles (Air Control 2-10). Plane opened to 5 miles, closed to 7 miles, then closed out to 12 miles and faded out.

1600
Discontinued chase. Changed course to 110°T, slowed to one engine speed, returning to station.

2153
Cleared message (110°T fifth) to CTF 71 reporting loss of contact.

18 December 1944
Typhoon still vary intense. Sea seven, heavy rain, with 40 knot gale. Heading into the sea making good two knots at 2/3 speed.

1150
Obtained radar fix on Inde China coast.

1900
Received message to return to Fremantle. Set course 165°T, at two engine speed.

19 December 1944
Annuate area to Fremantle at two engines speed.

0615
Made down trim dive.

20 December 1944
Annuate area to Fremantle at two engine speed.

0640
Submerged for day off the eastern approaches to Great Motuana passage.

1912
Surfaced.

21 December 1944
Annuate area to Fremantle at two engine speed.

1955
Exchanged recognition signals with U.S.S. BASEV on SJ radar.

2100
Radar contact on Karimata Island. Commenced

- 17 -

— page 201 —
U.S.S. KINGO - Report of Sixth War Patrol.

transit of Karimata Strait.

2215 Avoided U.S.S. GURMARD at flank speed.

2232 Exchanged recognition signals with U.S.S. GURMARD on 5J radar.

22 December 1944

:  [Naroute area to Fremantle at two engine speed.]

0530 Completed transit of Karimata Strait.

C605 Made dawn trim dive.

23 December 1944

:  [Naroute area to Fremantle at two engine speed.]

0541 Made Dawn trim dive.

1434 Submerged north of Bell to wait for dark to transit Lombok and to avoid being sighted by sailboats.

1915 Surfaced.

1931 Avoided sail boat.

2245 Avoided sail boat.

2317 Avoided sail boat.

2355 Commenced transit of Lombok at four engine speed.

24 December 1944

0128 Radar contact on patrol boat (Ship Contact #10), range 6075 yards. Avoided petrol to the westward. Patrol boat was patrolling eight miles off Bell coast on course 0400T. at eight knots.

0155 Lost radar contact on patrol at 10,000 yards.

0330 Completed transit of Lombok Strait.

0600 Slowed to three engines speed enroute Xmouth Gulf.

- 18 -

— page 202 —
0332 Sighted unidentified U.S. Floet type submarine, north bound.
25 December 1944
Enroute area to Enmouth Gulf at three engine speed.
26 December 1944
Enroute Enmouth Gulf.
0733 Moored alongside oil barge at Enmouth Gulf.
Recoived 15,000 gallons of fuel oil.
2008 Underway enroute Fronantlis, Western Australia.
27 December 1944
Enroute Fronantlis, Western Australia, at three engine speed.
0528 Made dawn trin dive.
23 December 1944
Enroute Fronantlis, Western Australia, at three engine speed.
29 December 1944
Enroute Fronantlis, Western Australia, at two engine speed.
0211 Exchanged recognition signals with the U.S.S. BAREL at 6N radar.
- 19 -

— page 203 —
0300
: C811
: Sighted Rottnest Island Light.
: Moored at North Chart at Fremantle, Western Australia.

— page 208 —
1. USS. MTN-60 - Report of Sixth "Bar Patrol.
Subject: U.S.S. MTN-60 - Report of Sixth "Bar Patrol.
---
Tubes Fired  #1  #2  #3  #4  #5  #6
---
|

— page 209 —
6 knots, and 8 knots for target speed.

* Target increased speed from 3 knots to about 8 knots during firing.

Tubes Pired #7 #8 #9 #10
Track -angle -vortage 950 Port on firing.

Gyro angle 172° 171° 166° 165°
Depth Set 3 feet 3 feet 3 feet 3 feet
Power High High High High
Hit or Miss Miss Hit Miss Miss
Tactical (Yes or No) No No No No
Mark Torpedo 23 23 23 23
Serial No. 33795 50036 46163 50135
Mark Exploder 6-5 6-5 6-5 6-5
Serial No. 16693 26627 26287 26626
Actuation Set Contact Contact Contact Contact
Actuation

— page 210 —
19 Nov : 25 Nov : 7 Dec
Time : 1221(H) : 2030(H) : 2030(H)
"Motor Depth (fath) : 50 : 77 : 30
S/H List. : 39'1" N. : 5'23" N. : 3'9'2" N.
a/ Long. : 108'14" : 113'23" : 111'30" S.
b/ Course : 270° T. : 200° T. : 220° T.
c/ Speed : 2 knots : 10 knots : 12 knots
d/ Keel Depth : 63 feet : 5 fathoms : 5 fathoms
Depth Type : Convey : Convey
Direct Tonnage : 2,000 tons : 1,500 tons
Direct Jet Speed : 13 knots : 8.5 knots
Range, Turn Count : - : - : - :
(R.T.) : - : - : - :

Type Sound Ecutip : OB : B : CB
In d/t (Used) : - : - : - :
What did sound : - : - : - :
first yick up : - : - : - :
In frequency band : - : - : - :
(Kcs) : 16 - 18 kcs: 18 kcs : 16 - 18 kcs
Max. Range Contact : - : - : - :
Held (Yds) : high speed : high speed : high speed
Initial Range : 22,000 yds : 21,000 yds : 14,500 yds.
Time Contact Lost : - : 0:30 : - :
Range Contact : - : - : - :
Lost : - : - : - :

DETACHED COPY OF SURVEY REPORT BY /S SURVEY CO. CLINT
Submarine USS ITMYK Patrol No. 6, Incident 3er. No. 1
Type Camouflage this Patrol Light Grey
Time (Zone) and Date when 5/1/ 2020(H) 19 November 1544
was contacted

— page 212 —
U.S.S. INTEGRO - Report of Sixth War Patrol.

Attach a BU Card (facsimile of any BU record obtained at
approx. 1/2 mile of the contact).

NONE available. Depth of water about 30 fathoms.

Submarine USS INTEGRO Patrol No. 6, Incident Ser. No. 2.

Type Convoy: This Patrol Light Cruiser

Time (Zone) and Date: "Ten
5/8 was Contacted 0445(T) 25 November 1944

"Ten 5/8" was Detected "that was:

3/8 Position Lat. 5°42' N. Long. 113°19' E.

5/8 Speed 4 Knots Course 065° T. Trim (or Depth) Periscope

Sea: State Cm. Direction Northwest

Visibility 10

Clouds: Height 2500 feet Percent 100%

Moon: New, Angle -- Percent -- Bearing(T) --

Detecting Craft:

Type of Surface Craft RQ(2) Tonnage 1500

"That was apparent Mission or Duty of Surface Craft Prior
to Detection of Submarine Escort Duty

Submarines Detected by Torpedo-Take

Echo Ranging Frequency Employed 18 Kcs

Hand or Automatic Keyed: Both

John Ranging Prior to Detecting 5/8 Yes

Range of 1/5 Craft at Time of Detection 1500 yards

Bearing(T) of 1/5 at Time of Detection 205°

Tactics of Sighting Craft after Detection Made Depth Charge Attacking

"Tactics of 1/5 surface attack on 10° C. positive
for 250 ft. at 250 ft.

- 2 -

— page 213 —
U.S.S. TMGO - Report of Sixth "War Patrol.

Time Contact Lost by Surface Graft 0516
Did ./S Craft Make Attack on S/?? Yes
Gunfire or Depth Charge? Depth Charge
S/M Waved on Surface or Submerged Submerged
Remarks Waved to north at slow speed, raised for silent
running.
Attack a BP Card facsimile of any BT record obtained at
approximately the time of the contact. Non's available.
Submarine USS TMGO Patrol No. 6. Incident Ser. No. 3
Type Camouflage This Patrol Light Grey
Time (Zone) and Date "Hon S/M
Was Contacted 2314(H) 7 December 1944
"Hon S/M" is Detected "Hon S/M"
S/M Position Lat. 34°9' N. Long. 111°32' S.
S/M Speed 12 Knots Course 220° T. Trim(or Depth) Surface
Sea: State Calm Direction - -
Visibility 8000
Clouds: Height 2000 feet Percent 35%
Mcr: Elev. -angle None Percent - - Bearing(T) - -
Detecting Graft:
Type of Surface Graft Unidentified Tonnage - -
"that was apparent Mission or Duty of Surfaco Craft Prior to
Detection of Submarine Escort at Convoy
Submarine Detected by Sight or Radar
Echo Ranging Frequency Employed 16 - 18 Kcs
Hand or Automatic Keyed? Automatic
Echo Ranging Prior to Detecting S/M? Yes

- 30 -

— page 214 —
U.S.S. KINGSTON - Report of Sixth "Car Patrol.

Range of .../S. Cmrt at Time of Detection 6300 yards

Bearing(T) of .../S. at Time of Detection 280°

Tactics of Sighting Cmrt. after Detection Chased on Surface

Tactics of B/M. after Detection Waded on surface at flank speed.

Time Contact Lost by Surface Cmrt. 0136(1) 8 Dec 1944

Did .../S. Cmrt take attack on B/M? No

Cumfire or Death Charge? Neither

S/M Wrack on Surface or Submerged Surface

Remarks: Report agreed to have radar. 14 Knots ton speed.

Attach a KT Card possible if any KT record obtained at approximately the time of the contact. None available. Did not dive.

— page 217 —
4-50 Cal. Gun

Foot firing assembly carried away during typhoon.

(I) RADIO

Reception of Bakers on this "ar 2-trol" was good, except when in the care of Gennaro Bey. Here the weather conditions made reception poor on 1st. 12630 Kcs. was coupled in the day with fair results. Jet interference was noticed only on 9250 Kcs. It was here that the first interference was noticed on 9250 Kcs. It was here that the first interference was

— page 218 —
U.S.S. TINGO - Report of Sixth "er Patrol.

normal tube failures, has been a dislaying of the trans-mitter bering-indictor saloon which has been a con-stant source of trouble since the TINGO was commissioned. This, and the fact that the patrol has been lssky during the latter part of the patrol, have been the only defiots to mar an unusually fine performance record.

In addition to search and fire control operations, the 87 has been used quite frequently for recognition of and commu-nication with friendly submarines.

SD Reder - The SD reder has again been very satisfac-tory and though few contacts were made, rings were good throughout the run. Intermittent keying has been employed exclusively and aircraft were detected from 7 to 21 miles - land to 100 or 50 miles. No abnormal failures were experienced.

LFR - Nothing can be said one way or another about the radar detector since no results were obtained. The lone contact for this equipment was made possible by the radar station at Ximouth Gulf.

It is felt by the ship's radar personnel that the antenna location is not practicable for efficient op-er-ation due to probable shielding by the superstructure.

(N) SOUND CAR AND SOUND CONDUCTORS

All sound equipment gave excellent service. Sound conditions were normal for shallow water.

(O) DENSITY LEVELS

Due to extremely shallow water in area only one tem-perature gradient and layer was observed.

| :

— page 221 —
25-71/A16-3
serial: 005
UNITED STATES NAVY
12 January 1945

PERIOD ENDED: 12 January 1945
33 THIRD COAST, 125-45
at 20 December 1944.
report of Sixth 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. MINGO (SS261) - Report of Sixth War Patrol - Comment on.

1. The Sixth War Patrol of the MINGO was conducted in the NORTH CHINA SEA area east of BOKTOPO, and on reconnaissance duty off PIERY CROSS SHOAL and KAMARAH BAY.

2. The first night surface attack was frustrated when MINGO was probably sighted at 2030 by one escort at range estimated 6.5 miles.

3. The second night surface attack was well conducted. After tracking a convoy for about two hours, and carefully locating the escorts and determining the co-ordination of the formation, MINGO attacked on the unprotected flank and blew the target apart with three hits from six bow tubes. The illumination from the burning target made submergence advisable, and twenty three minutes later, from a submerged condition, MINGO fired four stern torpedoes at an escort identified as a PSE, and one hit was observed before being driven down and depth charged. Evidence of damage on this escort is insufficient to assess this ship as sunk.

4. The MINGO very skillfully drew off the escorts from a convoy on the night of December 6th and permitted HAMBERD and PADDLE to successfully attack and sink two tankers and one CHIDORI.

5. Reconnaissance duty from 12 December to 18 December was very creditable performed and three important contact reports were sent out.

6. The award of the Submarine Combat Insignia is authorized for this patrol.

7. The Task Force Commander commends the Commanding Officer, Officers and Crew of the MINGO for their performance of valuable reconnaissance duty and for two successful attacks which resulted in the following damage to the enemy:

-1-

— page 223 —
1/30/42
U.S.S. TINGO (SS261)
SS261/AI-3
CONFIRMED
DECLASSIFIED
From: The Commanding Officer.
To: The Commander-in-Chief, United States Fleet.
Via: (Official Channels).
Subject: U.S.S. TINGO - Report of Seventh War Patrol.
Enclosure: (A) Subject Report.
(B) Track Charts.
1. Enclosure (A), covering the seventh war patrol of this vessel conducted in the SOUTH CHINA SEA during the period 6 February 1945 to 25 April 1945, is Forwarded herewith.

DECLASSIFIED
DECLASSIFIED-ART. 0445, OPNAVINST 5510.1C
BY: [Signature]
DATE: 3/31/42

— page 224 —
6 February 1945

The following officers and chief petty officer were attached during this patrol with total number of previous patrols as indicated:

| Name and Rank, Rate | No. of Patrols |
|||
| John R. MAISON         | 8             |
| Henry G. REAVES, Jr.  | 1             |
| Clarence B. GRIZZ          | 1             |
| Madan F.J. STILMAC        | 7             |
| William R. BAYKS         | 5             |
| Leslie E. BEATH, Jr.     | 4             |
| Charles R. CUNNING        | 3             |
| Edwin R. MARCUS          | 3             |
| Charles R. MERSEREAU       | 5             |
| John J. HUDGINS          | 5             |
| Henry L. BOKKENHAGEN       | 6             |
| William L. HALLECK        | 6             |
| Andrew T. MALLICK         | 6             |
| Richard W. TREAT          | 8             |
| John M. BARBOUR          | 11            |

- 1 -

— page 225 —
U.S.S. MINNO (SS261) - Report of Seventh War Patrol.

Name and Rank, Rate | No. of Patrols
--- | ---
Francis R. DIXON | 6
Elmer A. NO SPADDEN | 1
Richard H. AHRENS | 11
U.S.N. | 1
U.S.N. | 11

1300 Underway for patrol area. Made trim dive, and day and night approaches on escort.

2300 Set course 325°T. enroute patrol area.

7 February 1945

Enroute patrol area using constant helm zig-zag plan. Made daily trim and training dives. Held fire control and tracking drill.

1300 Exercised crew at general drills. BOW planes jammed on 15° dive during collision drill submerged. BOW planes remained out of commission until 0100 10 February 1945. (See major defects).

MON POSITION: Lat 29°16'S. Long 112°36.5'E.

8 February 1945

Enroute patrol area using constant helm zig-zag plan.

1500 Exercised crew at general drills. BOW planes jammed on 15° dive during collision drill submerged. BOW planes remained out of commission until 0100 10 February 1945. (See major defects).

MON POSITION: Lat 24°23.5'S. Long 111°42.5'E.

9 February 1945

Enroute patrol area using constant helm zig-zag plan.

0840 Made trim dive. BOW planes noisy, and unable to operate in hand. Held daily fire control drill.

2200 Weather building up. We appear to be running into a hurricane.

MON POSITION: Lat 20°01'S. Long 113°00'E.

— page 226 —
10 February 1945
Enroute patrol area. Constant helm zig zag during daylight.

0100 Definitely in a hurricane, "Wind force 80 knots, sea seven.

0210 The 0.0.D., Ilett[ief] Christopher, CUNNING, Jr. and one lookout, Robert J. OUTHALL, M3e V-6, USNR, were washed over the side. A 34 hour search failed to reveal a trace of the missing men.

The above casualty was covered by a separate report to ComTaskForce 71.

0210 Took tremendous wave over bridge. Depth gauge read 60 feet. Partially flooded Zump Room and Conning Tower before upper and lower Conning Tower hatches could be closed. The following machinery was grounded out: both H.P. Air Compressors, both Air Conditioning circulating water pump motors, PPI Scope, both periscope panels, master gyro, No. 2 I.C, Motor Generator voltage regulator, Auxiliary Generator, Loran equipment, and VHF generator.

0300 Lying to.

1800 Received orders to return to Fremantle.

NOON POSITION: Lat 17°38' S, Long 113°49' E.

11 February 1945

Continuing search for missing men.

1200 Abandoned search. Set course for Fremantle.

1633 Exchanged recognition signals with U.S.S. PERCH, south bound.

NOON POSITION: Lat 18°28' S, Long 113°33' E.

12 February 1945

Enroute Fremantle using constant helm zig zag plan during daylight.

— page 227 —
1500 Auxiliary Generator back in commission.
NCO POSITION: Lat 23°34'3", Long 112°25'3".
13 February 1945
Enroute Frontal.
0250 Sighted Rottnest Island Light.
0835 Moored Frontal.
14 February 1945
Enroute Frontal.
0250 Sighted Rottnest Island Light.
0835 Moored Frontal.
14 February - 18 February 1945
Riffloted by Ship's Force and Submarine Repair Unit, Navy 1137.
19 February 1945
0800 Ensign John J. HUDKINS, (D)L, USNR and Ensign Charles R. HARRIS, (D)L, USNR reported aboard for duty.
1440 Underway for Seventh War Patrol in company with U.S.S. SALTON.
1712 Made trim dive.
1955-2120 Held fire control and tracking drill.
2230 Departed submarine exercise area, cruiser patrol area.
20 February 1945
Enroute patrol area in company with U.S.S. SALTON, constant helm zig zag plan during day light. Made three section dives and held tracking drill.

— page 228 —
0940
Made rehearsal battle surface.

: 0940
NCO POSITION: Lat 28°41'S, Long 112°43'E.

: 21 February 1945
Enroute patrol area in company with U.S.S. SEA LION, constant helm zig zag during daylight.

: 0930
Made three section dives.

: 1015
Hold small arms gun drill. Held daily fire control and tracking drill.

: 1436
Sighted ship and tracks. Identified as an Australian minesweep.

: 1436
NCO POSITION: Lat 23°39'S, Long 112°27'E.

: 22 February 1945
Enroute patrol area in company with U.S.S. SEA LION, constant helm zig zag during daylight.

Made three section dives, and held daily fire control and tracking drill.

: 23 February 1945
NCO POSITION: Lat 13°40'S, Long 114°51'E.

: 24 February 1945
Enroute patrol area in company with U.S.S. SEA LION.

: 0604
Submerged for day, seventy five miles south of Lombok Strait.

- 5 -

— page 229 —
1916
Surface speed.
Vent to three engine speed.
POINT POSITION: Lat 9°56.5'S. Long 115°29.5'E.

25 February 1945
0030 Command transit of Lombok Strait at four engine speed.
0330 Completed uneventful transit of Lombok Strait in very bright moonlight. See Radar section for AP contacts.
0550 Submerged for day, east of Kangean Islands to allow SCAT to get a ten hour start as we did not desire to transit the Deva Sea in company.
1917 Surface speed. Enroute patrol area at three engine speed.
NOON POSITION: Lat 7°16.5'S. Long 116°20'E.

26 February 1945
0717 Passed between Arends Island and Little Nagalembo Island. 200 KGs, 1000 RPM, radar on one of the Islands tracked us for about thirty minutes.
1044 First aircraft contact at nine miles, closed to 7.5 miles. Submerged. Plane not sighted.
1140 Surface speed. Proceeding patrol area at three engine speed.
NOON POSITION: Lat 5°03'S. Long 113°52'E.

27 February 1945
0650 Submerged for day, east of East Discovery Bank. Hill transit Arimata Strait tonight.

— page 230 —
1904
Surface. Commenced transit of Karimata
Strait at three engine speed.

NOON POSITION: Lat 35°31'S, Long 109°30'E.

28 February 1945

0030 Exchanged recognition signals with U.S.S.
CALIMAN, north bound.

0500 Completed transit of Karimata strait.

1200 Slowed to two engine speed.

2000 Flushed out No. 4 F.B.T.

NOON POSITION: Lat 00°17'S, Long 107°58'E.

1 March 1945

Enroute patrol area at two engine speed.

0640 Made dawn trim dive.

NOON POSITION: Lat 4°17'N, Long 106°46'E.

2 March 1945

Enroute patrol area at two engine speed.

0400 Contact made with U.S.S. PAMPANITO on SJ radar

0430 Joined wolf pack consisting of the U.S.S. PAMPANITO, SALION, AND MINGO - OTO is the C.O. of the PAMPANITO. PAMPANITO passed over pack instructions and grid chart of area by line throwing gun.

0525 In assigned area, slowed to one engine speed.

0640 Made dawn trim dive.

Three aircraft contacts during day. Numerous
Germlins on SJ radar at night.

NOON POSITION: Lat 6°20'N, Long 105°51'E.

— page 231 —
3 March 1945

Surface patrol in assigned area.

0632 Made dawn trim dive.

1433 Submerged. Plane on SD closing at 8 miles.

1516 Surfaed.

NOON POSITION: Lat 6°26'N. Long 105°36'E.

4 March 1945

Surface patrol in assigned area.

0648 Made dawn trim dive.

2200 Made rendezvous with U.S.S. PATRIOT, Received new patrol area. Set course 2700T. for new patrol area.

2300 On station. Area is bounded by 6°N. to 6°30'N., 103°50'E. to 105°10'E.

Four aircraft contacts during day. Two of these appeared to be transports enroute Singapore to Saigon.

NOON POSITION: Lat 6°26'N. Long 105°59'E.

5 March 1945

Surface patrol in assigned area.

0643 Made dawn trim dive.

1006 Submerged for plane. SD contact closing at 12 miles, two bombers (BETTYS) plainly in sight from bridge.

1045 Surfaed.

NOON POSITION: Lat 6°30'N. Long 104°54'E.

6 March 1945

Surface patrol in assigned area.

— page 232 —
0647 Made dawn trim dive.
1015 Sighted plane at 15 miles. Did not dive.
1504 Submerged to investigate possible sailboat bearings 2340T. Lost contact.
1535 Surfaced. Contact determined to be a floating island.
NOON POSITION: Lat 6°17'N. Long 104°18'E.
7 March 1945
Surface patrol in assigned area.
0645 Made dawn trim dive.
1445 Commenced opening to the east at standard speed to intercept north bound maru reported by PINTADO.
1529 Vent to full speed.
1629 Vent to flank speed.
1632 Forced down by plane at six miles.
1650 Surfaced. All ahead flank.
1831 Slowed to one engine speed. Maru reported to be a hospital ship by SALION.
2°C Made rendezvous with PAMPINITO and SALION. Received instructions from PAMPINITO by line throughe gun. New patrol line is across the mouth of the Gulf of Siam.
2245 Set course for new patrol area. at two engine speed.
NOON POSITION: Lat 6°32'N. Long 104°27'E.
8 March 1945
Surcute patrol station in mouth of the Gulf of Siam.
0755 Exploded mine with rifle fire. Position:

— page 233 —
7/17/41, Long 103°40' E.
0630 On station, commenced surface patrol on line 130°T, -310°T, normal to expected traffic routes.
MON POSITION: Lat 7°45'N. Long 102°56'E.

9 March 1945
0640 - Had clear trim dive. Negative H.T. blow very clear. Velve traveling bushing frozen in place. Unable to remove without stripping threads in manifold. All have to use 200# air for negative blow.
1009 Surfaced.
NOM POSITION: Lat 7°50'N. Long 102°56'E.

10 March 1945
0654 Made dawn trim dive.
1115 Submerged. Two Bettys closing at nine miles seen from bridge.
1210 All clear. Surfaced.
NOM POSITION: Lat 7°26'N. Long 103°10'E.

11 March 1945
0650 Made dawn trim dive.
1715 Exploded mine by gun fire in position: Lat 7°45.5'N. Long 102°32.5'E.
2000 Commenced shifting patrol station in accordance with previous instructions.
NOM POSITION: Lat 7°51'N. Long 102°26.5'E.

— page 234 —
12 March 1945
Surface patrol in assigned area.
0648 Made dawn trim dive.
0800 Arrived on station, southern portion of line across mouth of Gulf of Siam.
Three aircraft contacts during day.
NOON POSITION: Lat 06°13'N, Long 104°46'E.
13 March 1945
Surface patrol in assigned area.
0647 Made dawn trim dive.
One aircraft contact during day.
NOON POSITION: Lat 6°07'N, Long 104°33'E.
14 March 1945
Surface patrol in assigned area.
0640 Made dawn trim dive.
2100 Made rendezvous with wolf pack. Received new grid chart and instructions from PANTAUTO by line throwing gun. Set course for new station off Malay coast, between 5°N and 6°N latitude.
NOON POSITION: Lat 6°34'N, Long 104°19'E.
15 March 1945
0635 Submerged for day off Pulo Kapas Island. Patrolled submerged between the ten and twenty fathom curves.
1951 Surfaced.
NOON POSITION: Lat 5°22'N, Long 103°20'E.

— page 235 —
16 March 1945
0633 Submerged for day off Pulo Kapas Island.
Maintained submerged patrol between ten and twenty fathom curves.

1953 Surfaced, commenced shift in.
Petrol station as previously directed by ComVolfPack #1.

NOON POSITION: Lat 50°17'N, Long 103°21'E.

17 March 1945
0400 In new patrol area.

0637 Made dawn trim dive.

0953 Submerged, Contact on SD radar closing at 8 miles.

1022 Surfaced.

NOON POSITION: Lat 50°31'N, Long 105°11'E.

18 March 1945
0638 Surface patrol in assigned area.

0643 Made dawn trim dive.

1058 Exploded mine by rifle fire in position;
Lat 50°31'N, Long 104°34'E.

NOON POSITION: Lat 50°37'N, Long 104°42'E.

19 March 1945
0638 Surface patrol in assigned area.

1900 Made dawn trim dive.

1936 Set course for new area, on patrol line 330° - 150° about 30 miles east of Pulo Kapas Island.
ATLANTIC and SEALION will be to the west and AMERITO to the north of us.

- 12 -

— page 236 —
U.S.S. MINGO (SS261) - Report of Seventh War Patrol.

NOON POSITION:  Lat 50°42'N.  Long 106°06'E.

20 March 1945

0315  On station.

0643  Submerged for day.

1947  Surfaced. Patrolled area to northeast of Pulo Tonggol for remainder of the night.

NOON POSITION:  Lat 50°06'N.  Long 103°59'E.

21 March 1945

Patrolling area 25 miles, bearing 050°T, from Pulo Tonggol Island.

0610  Received orders to change station. Went to two engines speed enroute station in Gulf of Siam.

1100  Slowed to one engine speed.

1142  Sunk mine in following position: Lat 6°09'N.  Long 104°09'E.

1800  On station.

NOON POSITION:  Lat 6°09'N.  Long 104°18'E.

22 March 1945

Maintained surface patrol in area signed area.

0633  Made dawn trim dive.

0954  Submerged. Plane at nine miles, closing.

— page 237 —
1025
Sighted five fighter type planes in formation on southerly course, probably enroute.
S/Surface.

1025
Submerged. Plane at eight miles, closing.

1326
Surface.

1800
Set course 180°T, enroute assigned area for tomorrow off Malay Coast.

NCO POSITION: Lat 7°34'N. Long 102°42'E.

23 March 1945

0623
Submerged for day.

2000
Surface.

NCO POSITION: Lat 5°21'N. Long 103°22'E.

24 March 1945

0628
Submerged for day.

1953
Surface.

NCO POSITION: Lat 5°19'N. Long 103°22'E.

25 March 1945

0633
Made dawn trim dive.

1027
Submerged. Plane at eight miles, closing.

1115
All clear. Surface.

1514
Submerged for plane at nine miles, closing.

1600
All clear. Surface.

NCO POSITION: Lat 5°35'N. Long 105°13'E.

— page 238 —
26 March 1945
Surface patrol in assigned area.
0628 Made dawn trim dive.
1134 Plane on SD radar at 25 miles. Did not close.
NOON POSITION: Lat 50°32'N, Long 104°01'E.
27 March 1945
Closing Malay Coast for submerged patrol.
0145 Radar contact on Pulo Tenggol Island at 48,000 yards.
0630 Submerged twelve miles from Pulo Tenggol.
1155 Heard three very distant explosions, possibly torpedo explosions.
1955 Surfaced.
2100 Received message by SJ radar from CAIMAN that she missed small maru with four torpedoes. Explosions heard at 1155 were probably end of run explosions. Spent remainder of night patrolling east-west line, 25 miles north of Pulo Tenggol.
NOON POSITION: Lat 50°08'N, Long 103°30'E.
28 March 1945
0631 Submerged for day.
1953 Surfaced.
NOON POSITION: Lat 50°00'N, Long 103°42'E.
29 March 1945
Commenced opening to eastward for surface patrol in assigned area.
0625 Made dawn trim dive.

— page 239 —
2000 Convoys No. 3 and No. 5 P.P.T. to Main
    : 30 March 1945
    : Surface patrol in assigned area.
    : 0620 Made dawn trin dive.
    : NOON POSITION: Lat 6°12'N, Long 106°58'E.
    : 31 March 1945
    : 0600 Departed area, enroute Siapan, in accordance
    : with operation order.
    : 0615 Made dawn trin dive.
    : 1030 Crossed 100 fathoms curve. This is the first
    : water over 50 fathoms since 24 February 1945.
    : 1435 Exchanged reconciliation signals with U.S.S.
    : BLACKFIN, south bound.
    : NOON POSITION: Lat 8°59'N, Long 109°28'E.
    : 1 April 1945
    : Enroute Siapan.
    : 0604 Made dawn trin dive.
    : 0800 Changed to Item time (-5° zone) to
    : 1330(I) Submerged to plane. Believe to be a friendly
    : bomber, but unable to establish communications on
    : VIP.
    : 1342(I) Surfaced.
    : 1401(I) Sighted two engine bomber at ten miles. Unable
    : to establish communications.
    : 1407(I) Submerged.

— page 240 —
1448(I)  Surfaced.
NOON POSITION:  Lat 13°11'N.  Long 116°38'E.
2 April 1945
Enroute Siapan.
0654(I)  Made dawn trim dive.
2018(I)  Strong 3F radar interference.  Unable to ex-
change recognition signals although numerous at-
tempts were made during the next two and a half
hours.
230C(I)  Passed operation control to ComTaskForce 17.
Task unit designation is now 17.3.90.
NCON POSITION:  Lat 17°25'N.  Long 111°15'E.
3 April 1945
Enroute Siapan.
0647(I)  Made dawn trim dive.
1000(I)  Twelve B-25's passed overhead.  No VHF com-
munications, but identified at eight miles by LPF.
Pulled flare and remained on surface.
NOON POSITION:  Lat 20°16'N.  Long 114°13'E.
4 April 1945
Enroute Siapan.
0626(I)  Made dawn trim dive.
1250(I)  Sighted large plane at 10 miles.
1255(I)  Plane headed toward,  Unable to establish com-
munications by VHF so submerged.  Plane unidentified
1339(I)  Surfaced.
141C(I)  Sighted 21 B-29's at thirteen miles.  Talked
with them over VHF.

— page 241 —
1450(I) Submerged for unidentified plane.
: 1500(I) Identified plane as B-24.
: 1509(I) Surfaced.
: 1532(I) Aircraft at 25 miles on SD radar, friendly by IFF.
: 1640(I) Sighted four P-38's, Talked with them on VHF. Maintained VHF contact out to 60 miles.
: 1802(I) Went to three engine speed to transit Baitang Channel.
: 2030(I) Radar contact on Batan Island.
: 2155(I) Vent ahead flank speed.

NOON POSITION: Lat 20°30'N, Long 119°20'E.

5 April 1945

Annotate as necessary.

Channel at flank speed.

0100(I) Slowed to three engine speed.

0300(I) Completed transit of Baitang Channel.

0604(I) Made dawn trim dive.

0830(I) Set time up one hour to King time (-10 zone).

1432-52(K) Talked with B-24 on VHF and established friendly relations. Be flown over and took our picture, gave us location of friendly Jocks, and said he would look out for us tomorrow. VHF communication was excellent out to 70 miles.

2140(K) Radar interference and radar contact on twenty ship friendly task force. No recognition signals received after we pulled emergency recognition rocket. Friendly by IFF. Task force altered course to veer to pass astern.

2300(K) Lost radar contact on task force.

— page 242 —
6 April 1945
Enroute Siapan.
NOON POSITION: Lat 20°50'N. Long 129°32.8'E.
7 April 1945
Enroute Siapan.
0621(K) Made dawn trim dive.
1230(K) Sighted B=29, north west bound.
NOON POSITION: Lat 20°17.5'N. Long 134°09.5'E.
8 April 1945
Enroute Siapan.
0609(K) Made dawn trim dive.
Numerous friendly plane contacts during day.
NOON POSITION: Lat 17°26'N. Long 138°28'30"E.
9 April 1945
Enroute Siapan.
0555(K) Made dawn trim dive.
Numerous friendly plane contacts during day.
NOON POSITION: Lat 14°46'30"N. Long 142°59'E.
10 April 1945
Enroute Siapan.
0500(K) Rendezvous with escort, LCI 371.
0730(K) Sighted Siapan bearing 110°T., distance 28 miles.
1145(K) Moored at Siapan.

— page 244 —
0549(L) - Submerged for day with Marcus Island bearing 070°T., distance 70 miles.

2000(L) - Surfaced, Patrol maintained to northwest of island during night.

NOON POSITION: Lat 24°15'N. Long 153°00'E.

16 April 1945

Maintaining surface patrol off Marcus Island, 0420(L) - Radar contact on Marcus Island, bearing 026°T. at 23,000 yards.

0415(L) - Picked up enemy shore-based radar on APR at 14,000 yards. Closed island to 9000 yards. Three distinct radar frequencies on APR now, but all continue to sweep and apparently have not contacted us. (See section [U]).

0515(L) - Submerged and continued to close Island. Took four single ping soundings on fathometer at half hour intervals. At ranges of 3000 yards, depth was 1600 fathoms. Secured fathometer.

0622(L) - Sunrise. At 3000 yards Island appears to be right in our lags. Three radar towers, three radio towers, gun emplacements, small dock with small sem pan alongside, beach, and barracks are very clearly visible. No targets here.

Sent rest of day patrolling east and west between 3000 and 5000 yards south of Island.

1630(L) - Took several periscope pictures of Island.

1900(L) - Commenced opening to southward.

1956(L) - Surfaced. Same APR contacts as last night.

Sent rest of night patrolling to west and northwest of Island.

NCCN POSITION: Lat 24°18'N. Long 153°46'E.

— page 245 —
17 April 1945
Surface patrol north of Marcus Island.

0630(L) Set course for Pearl Harbor.

MOON POSITION: Let 250°14'N. Long 155°34'E.

18 April 1945
Annotate Pearl Harbor.

0956(L) Make trim dive.

MOON POSITION: Let 251°15'N. Long 162°14'E.

19 April 1945
Annotate Pearl Harbor.

Avanced to 4° time (Zone -12).

MOON POSITION: Let 240°31'N. Long 168°27'E.

20 April 1945
Annotate Pearl Harbor.

1240(M) Make trim dive.

MOON POSITION: Let 235°58'N. Long 173°29'E.

21 April 1945
Annotate Pearl Harbor.

1645(M) Crossed date line. Will repeat 21 April 1945.

2400(L) Set clocks back 23 hours to 4° time (Zone +11)

MOON POSITION: Let 239°12'N. Long 179°01'E.

21 April 1945
Annotate Pearl Harbor.

— page 248 —
30 caliber rifle fire.

(J) ANTI SUBMARINE MASSER AND VISION TACTICS

Nothing new noted.

(K) HIJOR DEFECTS AND DEFENCE

(a) Hull and Machinery

(1) The bow planes jammed on 15° dive at 1500 on 8 February 1945 and were out of commission for 34 hours. It was impossible to tilt the planes in hand power. The turrets in power, tilting was slow with much difficulty and outboard of many hours of technical work above and outboard of No. 2 torpedo tube, it was found that the look-out on the end of the aft turret was in the gear casing had backed off and out of the gear casing caused the look-out to look and not the gear casing. The look-out was in the gear casing and the gear casing was in the gear casing. The look-out was in the gear

— page 251 —
1. U.S.S. ITMGC (SS261) - Report of Seventh Patrol

(0) DENSITY LAYERS
No density layers were observed due to extremely shallow water in petrol area.

(2) HEALTH, FOOD, AND HABITABILITY
The health of the crew and the habitability of the boat were excellent.

The quality of the food received at Fremantle is still below par.

(C) PERSONNEL
(a) Number of men detached after 6th netrol 16
(b) Number of men aboard during patrol 17
(c) Number of men qualified at start of patrol 61
(d) Number of men qualified at end of patrol 68
(e) Number of unqualified men making their first patrol 10

(R) TILES STEADY - FULL USED
Fremantle to Malay Barrier - 1732.2 miles - 16,910 gals
In area - 7187.1 miles - 59,147 gals
Area to Saipan - 2750.5 miles - 31,956 gals
Saipan to Pearl Harbor - 4005.0 miles - 50,000 gals
Total 15,674.8 miles 157,992 gals

(S) DURATION
Days enroute area and return Fremantle 8
Days enroute to area 6
Days in area 34
Days enroute to Saipan 10
Days enroute Saipan to Pearl Harbor 15
Days submerged 12

(T) FACTORS OF ENDURANCE RATING
Torpedoes Fuel Provisions Personnel Factor
24 7000 gals 5 days 20 days
at Saipan

Limiting factor this patrol - Operation Order

- 28 -

— page 253 —
1. The Commander Submarine Division ONE THIRTY ONE.
To: The Commander-in-Chief, United States Fleet.
Via: (1) The Commander Submarine Squadron TWELVE.
(2) The Commander Submarine Force, Pacific Fleet.
(3) The Commander-in-Chief, United States Pacific Fleet.

Subject: U.S.S. HINO (SS261) - Report of Seventh War Patrol.

1. The seventh war patrol of the HINO was conducted off the Halay Coast in the South China Sea. The patrol was of 73 days duration of which 34 days were spent in the area and 12 days were spent submerged. The HINO was a member of a coordinated attack group with the PANAMITO and SALADOR. The Commanding Officer PLATINO was the pack commander.

2. Enroute to patrol station the HINO encountered heavy weather and was forced to return to Frenchman for repairs to electrical machinery grounded as a result of seas shipped through the conning tower hatch. The loss of the Officer of the Deck and one lookout is deeply regretted.

3. No contacts with enemy surface vessels were made, although numerous aircraft were encountered.

4. The HINO arrived in an excellent state of cleanliness and is enroute to the east Coast for scheduled overhaul.

5. The Division Commander congratulates the Commanding Officer, officers and crew on the completion of this long and arduous patrol.

- [Signature]
- [Date]

— page 255 —
5 0 2 3
Id
Care of Fleet Post Office,
San Francisco, California,
3 May, 1945.

NOTES:
THIS REPORT WILL BE
DESTROYED PRIOR TO
ENTERING PATROL AREA.

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. MINGO (SS261) - Report of Seventh War Patrol
(6 February to 25 April 1945).

1. The seventh war patrol of the MINGO, under the command of Lieutenant Commander J.R. Madison, U.S. Navy, was conducted in the South China Sea area. The MINGO joined a coordinated attack group with the SBALION and the PANAHITO, the commanding officer of the latter being the group commander.

2. It is regretted that this long, well conducted patrol resulted in no contacts with the enemy. The forces Commander wishes to thank the MINGO for the excellent work and the excellent work of the officers and crew over the loss of two of their ships in the hurricane encountered on 10 February.

3. Award of Submarine Combat Insignia for this patrol is not authorized.

MERRILL COSTOCK.

DISTRIBUTION:
(Complete reports)
(7) (1) (2)
(6) (3)
(1) (1) (2)
(1) (