U.S.S. MUSKALLUNGE (SS-262) — war patrol report SS-262_MUSKALLUNGE.pdf

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1943, USS MUSKALLUNGE (SS-262), first ship of the Fleet to bear the name, was built by the Electric Boat Company of Groton, Connecticut. Her keel was laid, 7 April 1942, and on 13 December 1942, she was launched under the sponsorship of Mrs. Anna C. Graham, widow of Chief Torpedoman Merritt D. Graham, USN, who was a crew member of USS GRUNION (SS-216), lost due to enemy action in the Pacific during July 1942.

MUSKALLUNGE was placed in commission at New London, Connecticut, on 15 March 1943, when Lieutenant Commander Willard A. Saunders, USN, assumed command. She conducted extensive shakedown training operations in local operating areas of New London, including six weeks at Newport, Rhode Island, where she test fired several hundred electric torpedoes. On 10 July 1943, she departed New London, enroute to the Pacific and on 7 August arrived at Pearl Harbor.

MUSKALLUNGE departed Pearl Harbor on 7 September 1943 to conduct her first war patrol in waters off Palau. She carried the first electric torpedo to be fired in the war by an American submarine. Her first attack was a night-surface action against a convoy of four freighters under escort of a heavy destroyer and four smaller patrol vessels. After an undetected approach, she fired six electric torpedoes but two exploded prematurely close aboard, the shock causing the engines to stop and forcing MUSKALLUNGE to dive. As she passed a depth of 75 feet, a close salvo of depth charges were dropped and exploded close but resulted in no serious damage. Her second attack on the enemy was conducted several days later with similar results. This time one of her torpedoes exploded close under her bow, knocking down the crew in the forward torpedo room. In these two attacks she scored a hit on a passenger freighter, and one on a freighter for unconfirmed damage. She returned to Pearl Harbor for refit on 25 October 1943. During refit, Commander Michael P. Russell, USN, relieved Lieutenant Commander Saunders of command.

On 27 November 1943, MUSKALLUNGE departed on her second war patrol which was conducted in the Western Carolines area, and south of Guam. During this patrol she scored hits for damage to a tanker and two freighters. She returned to Pearl Harbor on 21 January 1944. Extensive engine trouble necessitated her return to Mare Island, California, where a new set of engines was installed, this work being completed by 5 April 1944. She then sailed for Pearl Harbor, arriving 12 April 1944. She departed, 30 April to conduct her third war patrol in the Palau area. This was a tedious patrol devoid of attacks and she returned to Fremantle, Australia on 4 July 1944, for refit.

MUSKALLUNGE departed Fremantle, 1 August 1944, to conduct her fourth war patrol, in company with FLIER, bound for the South China Sea. Enroute to her patrol area, she conducted a submerged attack in Mindoro Strait,

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22 September 1944, While undergoing refit at Fremantle, Lieutenant Commander L. A. Lajauine, Jr., USN, relieved Commander Russellio as commanding officer. MUKSALLUNGE departed on her fifth war patrol 19 October 1944, operating in the South China Sea, west of Palawan Passage. Her one contact was made on a cruiser with five escorts. Lacking a good attack position on the cruiser, an approach was made on the escorts but the salvo of torpedoes fanned out and ran under the shallow draft of the target. MUKSALLUNGE returned to Pearl Harbor on 14 December, and on 16 December 1944, departed for major overhaul in the Mare Island Navy Yard, arriving at San Francisco on 24 December 1944. She departed 2 April 1945 and returned to Pearl Harbor on 9 April.

On 26 April 1945, MUKSALLUNGE departed Pearl Harbor on her sixth war patrol which was to be conducted north of Formosa. An additional mission was to act as lifeguard for Philippine based air strikes on China and Formosa. On 20 May, Lieutenant Commander Lajauine became 11 and was relieved of command at sea by Commander William H. Lawrence, USN, on 21 May 1945. Enemy shipping was not encountered and an opportunity was not afforded for rescue of aviators. She returned, via Saipan, to Midway, arriving 15 June 1945.

MUKSALLUNGE departed Midway, 30 July 1945, on her seventh and last war patrol which was conducted along the Kurile Island Chain, north of Japan. On 8 August 1945, she contacted several sea trucks and commenced a daylight submerged approach under fog-bound conditions. When four torpedoes were fired at close range but missed, it became apparent that range was too close for another attack, and MUKSALLUNGE surfaced and closed to 350 yards and manned her deck guns. Poor visibility hampered the accuracy of gunfire which severely damaged two of the sea trucks. Meanwhile, one of the enemy had returned gunfire which killed Charles H. Whitman, EM 3/c who was manning the starboard .50 caliber machine gun. Two other men received superficial wounds.

The news of victory brought orders to proceed to Tokyo for the surrender ceremonies, and on 1 September 1945, MUKSALLUNGE entered Tokyo Bay. On 3 September, she sailed for Pearl Harbor, departing 13 September to steam via the Panama Canal for New London, Connecticut. She was placed out of commission in reserve at New London on 29 January 1947.

MUKSALLUNGE was again placed in commission on 31 August 1956, preparatory to transfer to the Government of Brazil. She was decommissioned on 18 January 1957, and transferred to Brazil under terms of the Mutual Defense Assistance Program. Rear Admiral Luis F. Pinto da Luz, accepted MUKSALLUNGE for commissioning in the Navy of the Government of Brazil.

MUKSALLUNGE earned five battle stars and other awards for operations as listed below:

1. Star/MARIANAS OPERATION: 2nd Bonins Raid: 24 Jun 1944

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1 Star/OKINAWA GUNTO OPERATION:
    Assault and Occupation of Okinawa Gunto: 16 May-15 Jun 1945

: 1 Star/SUBMARINE WAR PATROL - PACIFIC: 7 Sep-25 Oct 1943

: 1 Star/SUBMARINE WAR PATROL - PACIFIC: 27 Nov 1943-21 Jan 1944

: 1 Star/SUBMARINE WAR PATROL - PACIFIC: 1 Aug-22 Sept 1944

CRITICAL STATISTICS:

LENGTH OVER-ALL: 311'9"
EXTREME BEAM: 27'3"
STANDARD DISPLACEMENT:
Tons: 1526
Mean Draft: 15'3"
SUBMERGED DISPLACEMENT:
Tons: 2424
DESIGN SPEED:
Surface: 20.25 knots
Submerged: 8.75 knots
DESIGN COMPLEMENT:
Officer: 6
Enlisted: 54
ARMAMENT:
Main: (10) Torpedo Tubes
Secondary: (1) 3"/50
(2) .50 caliber machine guns
(2) .30 caliber machine guns
Torpedoes: 24

-3-
COMPILED AND STENCILED 4/18/58 (MUA)

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SS262/A16
Serial 019

U.S.S. MUSKALLUNGE (SS262)
Care Fleet Post Office,
San Francisco, Calif.,
25 October 1943.

J-O-N-F-I-A-L
DECLASSIFIED-I-A-L

From: Commanding Officer, U.S.S. MUSKALLUNGE.
To: Commander in Chief, United States Fleet.
Via: (1) Commander Submarine Division ONE TWENTY TWO.
(2) Commander Submarine Squadron TWELVE.
(3) Commander Submarine Force, Pacific Fleet.

Subject: U.S.S. MUSKALLUNGE, Report of war patrol number one.

Enclosure: (A) Subject report.
(B) Track Charts (Consubpac Only).
(C) Comments on Mark XVIII Torpedo (Consubpac Only).

1. Enclosure (A), covering the First war patrol of this vessel conducted in vicinity of Palau Islands, north-west and north thereof, during the period 7 September 1943 to 25 October 1943, if forwarded herewith.

DECLASSIFIED-AKT. CD45, OPPAVVINST 5510.1C
BY OP-099C DATE: 5/12/43
DECLASSIFIED

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7-11 September 1943. At 1300 VV. departed Pearl Harbor for Midway under escort of SC 513. 2015 VV released escort and proceeded independently. Conducted training enroute. Contacted air escort at 0540 Y and moored at Midway at 0745 Y September 11th. 1943.

0700 Y 12 September - Departed Midway for patrol area under air coverage. Remained overnight in Midway to make repairs to SJ radar and one Kleinschmidt evaporator.

0830 K 18 September - Submerged to routines 1k 18 torpedoes, replacing six in tubes with six freshly charged. This operation took six and one-half hours. Surfaced and proceeded towards patrol area, speed 11 knots.

2200 K 19 September - Increased speed to 17 knots and changed course to pass south of Alamagan Island.

1245 K 20 September - Submerged 35 miles east of Alamagan Island, planning to arrive in shipping lane to the west of the Mariannas about 2100 K.

2100 K 20 September - Commenced search in traffic lane.

1700 I 23 September - Number two engine back in commission.

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24 - 25 September - Surface and submerged patrol on Palau - Mariannas lane northeast of Velasco Reef.

: 26 September - Surface and submerged patrol on Palau - Empire lanes. At 1800 I sighted smoke, later identified by other smoke; as a convoy on about course 1650 T, range about 30,000 yards. Succeeded at dark and set course to intercept. After search of over two hours failed to locate targets decided he had made large change of course to his right at dark and would later change to arrive off Palau at daylight. Set intercepting course and at

: 2350 I 26 September - Made radar contact with convoy, range 19,000 yards. Commenced ap. roach and at

: 0201 I 27 September - Commenced firing forward tubes. Numbers 1 and 2 hit overlapping targets, number 3 failed to fire and numbers 5 and 6 exploded prematurely. A parently #6 countermined #5 as this firing interval in the excitement was only 8 seconds. Prematures immediately called in the escorts (4) and we were forced to dive prior to getting off stern shots. Depth charges started when we were at 75 feet, a total of eleven being dropped. It is believed this attack could have been completed un-detected and withdrawal made on the surface had premature not occurred. Surfaced at dark and proceeded to north-west corner of the area.

: 0505 I 28 September - Submerged on Takao - Palau lane on Palau 90 mile circle. Relative peach and quiet is essential for next 24 hours to work on electric torpedoes and two tubes forward.

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0-0-N-F-I-D-B-N-T-I-A-L

C-O-N-F-I-D-B-N-T-I-A-L

0515 I 29 September - Submerged 40 miles bearing 3100 from Anguar Island. Tubes and torpedoes serviced and ready.

30 September - Patrol off Taqgel Mungi Passage. Heuled out during night for surface patrol tomorrow on Manila - Palau lane.

2310 I 30 September - Sighted light later identified as properly lighted hospital ship enroute Palau. Avoided. Patrolled on surface on 1 October.

1410 I 2 October - Sighted convoy bearing 1700 T distance. 9 miles. Estimated we were within 6,000 yards of the base course so submerged for attack. We evidentially sighted the convoy at the extreme end of his left zig since we were never able to close any targets closer than 5500 yarus. Target was zigzagging as much as 600 from the base course.

1747 I 2 October - Surfaced and continued chase for night attack. Contact was never lost with the targets.

2055 I 2 October - Commenced approach for firing having selected two targets. Started firing at 2124 all forward tubes with 15 second firing interval. All was progressing nicely until the torpedo fired from 15 tube exploded prematurely but very considerably and knocking some of the crew down in the forward torpedo room. All tubes were fired, three torpedoes directed at each of two targets. After firing swung hard left to bring stern tubes to bear on a third target but the premature had called in the escorts who closed at twenty knots or more. The target was lost keeping tabs on the escorts so stern tubes were not fired. Evasion at 18 knots was attempted but at 2133 I was forced to dive. A total of 7 depth charges were dropped, none close, but echo ranging and search continued until 0100 I 3 October.

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0157 I 3 October - Surfaced and commenced chase to get in submerged attack in the afternoon.

0621 I 3 October - Sighted smoke of three ships bearing west (seas convoy). At 0906 I sighted masts of large ship bearing to the eastward on convoy course with convoy. We were in a pincers, being unable to get ahead of either the convoy or the tanker and at 1016 I were forced to dive to evade detection and the possibility of an attack became remote.

1700 I 3 October - Surfaced and continued chase. Should be in position for night attack about 0100 I the 4th. Failed to locate convoy during the night and when estimated to be 30 miles ahead continued search to west and northeast. Seas built up during early morning with wind force 7 and visibility during the day ranged from 100 yards to three miles. Did not locate convoy so at

1800 I 4 October - Commenced retiring towards our area search-ing the Empire - Palau lanes. All four main engines now smoke heavy black at 80% load. Suffi-cient fuel remains for about three more days on station.

0902 I 6 October - Submerged to routine torpedoes. Surfaced at 1235 I and continued surface patrol.

2200 I 6 October - Discontinued search and departed for Midway due to fuel limitations and unsatisfactory operation of #1 and #2 main engines. At present these engines are limited to approximately 70% power. The engineering force have worked constantly during the patrol on the engines. Abnormal piston ring wear and breakage is the major cause of trouble.

0408 I 7 October - Made radar contact bearing 1350 T distance 13,000 yards. Determined convoy (9 pips on radar) was on northerly course but night attack impossible before dawn. Hauled out to run ahead for submerged approach in afternoon, keeping smoke in sight. The plot from noon on showed a large change of course to about 0400 T and at about 1500 I a return to course 0050 T.

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215 I 8 October - Number 2 main engine back in commission. After having been completely re-rigged, thoroughly checked over and all injectors replaced we can now get about 75% power without heavy smoke. No suction to the smoking has been found.

: 1225 K 10 October - Submerged for plane contact. Will have to remain down rest of the day to prevent discovery from Agrigan Island.

: 1945 K 10 October - Surfaced and proceeded at two engine speed in accordance with Consubpso 091832 of October.

: 0930 L 13 October - Slowed to one engine speed because of fuel shortage. Heavy weather.

: 1030 L 15 October - Submerged to avoid plane detection. Surfaced one-half hour later.

: 1200 L 15 October - Commenced search for downed aviators about 95 miles west of Wake Island.

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2050 L 15 October - Sighted what appeared to be detachable gasoline tank for aircraft.

1815 L 16 October - Discontinued search, results nil, and set course south of Wake Island to Midway.

0912 L 18 October - Dived to avoid detection by aircraft. Surfaced at 1418 and proceeded.

1345 K 19 October - Dived to avoid detection by aircraft. Surfaced at 1418 and proceeded.

1430 Y 20 October - Made rendezvous with air escort and proceeded into Midway. Moored at 1616 Y. 20 October.

0600 W 25 October - Departed Midway for Pearl under air coverage.

0600 W 25 October - Contacted escort and proceeded into Pearl Harbor.

(C) WEATHER
The weather enroute to the area was generally excellent. While in the area there were many rain squalls with choppy seas for the first week after which the weather was generally heavy with much rain and wind up to force seven at times. Heavy seas were encountered on the first three days enroute to wake east of the Mariannas Islands. During the remainder of the trip the weather was excellent.

(D) TIDAL INFORMATION
Similar to that outlined in existing publications.

(E) NAVIGATIONAL AIDS
None seen.

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1. USS MUSKALLUNGE (SS262)
C-O-N-F-I-D-E-N-T-I-A-L
U.S.S. MUSKALLUNGE - FIRST WAR PATROL.
(H)
U.S.S. MUSKALLUNGE: TORPEDO ATTACK NO. 1 PATROL NO. 1.
*Ime 0201 I Date: 27 Sept. 1943 Lat. 8-22 N Long. 133.55 E.

TARGET DATA - DAMAGE INFLICTED
Description: CONVOY - three larus and five escorts consisting of four small craft and one DD.
Ships Sunk: None.
Ships Damaged or Probably Sunk: One and probably two.
Damage Determined by: Overserved hits on targets. Two explosions were seen from the bridge and heard below decks and on the sound gear.
Target Draft 25 Est. Course 1500 Speed 8 Range 1800 (at firing)

O.N. SHIP DATA
Speed 10 Course 2050 Depth Surface Angle -- (at firing)
Type Attack: Night surface - combined SJ Radar and visual from bridge.

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9/27/43
U.S.S. MUSKALUNGE - FIRST VAR PATROL
(H)
ATTACK #1
Tubes Fired - # 1 # 2 # 4 # 5 # 6
Track Angle - 125P 125P 125P 125P 125P 125P
Gyro Angle - 7R 6R 2R 0 2L
Depth Set - 10 10 10 10 10
Power -
Hit or Miss - Hit Hit Miss Miss Miss Counter
Erratic - No No No No No
(Yes or no)
Mark Torpedo - 18 18 18 18 18
Serial No. - 53353 53386 53344 53300 53355
Mark Explorer - 4-2 4-2 4-2 4-2 4-2
Serial No. - 16399 16463 16434
Mark Warhead - 18 18 18 18 18
Serial No. - 397 325 207
Firing Interval - 11 sec 25 sec 11 sec 8 sec
Type Spread - 1° Divergent
Sea Conditions - Smooth
Overhaul Activity -

Remarks - Attempted to fire No. 3 tube but there was a tube failure. Nos. 5 and 6 Fired prematurely approximately 200 yards ahead.

-10-

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0-N-F-I-D-E-N-T-I-A-L
: S.S. MUSKALLUGE - FIRST WAR PATROL
: (H)
: U.S.S. MUSKALLUGE TORPEDO ATTACK NO. 2 PATROL NO. 1
: Time 2124 I. Date 2 Oct. 1943 Lat. 11-26 N. Long. 134-10 E

TARGET DATA - DAMAGE INFLICTED

Description: Divided fire. First ship similar to TARUSIMA MARU (OUI 2083) Second ship similar to KOHUKU MARU.

Ships Sunk: None determined.

Ships damaged or Probably Sunk: One, (TARUSIMA MARU Type) with one and possibly two hits. (4865 tons).

Damage Determined by: Observation and two properly timed torpedo explosions heard below decks and on sound equipment.

Target Draft: 25 Course 3300 Speed 7.5 Range 1800 (at firing)

O.N SHIP DATA

Speed 14 Course 600 Depth Surface Angle -- (at firing)

Type Attack: Night surface - radar & visual from bridge.

— page 17 —
10/2/43

Tubes Fired - # 1 # 2 # 3 # 4 # 5 # 6
Track Angle - 90P 90P 90P 90P 90P 90P
Gyro Angle - 4L 6L 7L 4R 4R 2R
Depth Set - 16 16 16 16 16 16
Power - Possible Hit Miss Miss Premature Miss
Hit or Miss - Hit No No No No ? No
Erratic (Yes or no) - 18 18 18 18 18 18
Mark Torpedo - 53402 53336 53342 53385 53403 53387
Serial No. - 4-2 4-2 4-2 4-2 4-2 4-2
Mark Warhead - 16220 16197 16158 16251
Serial No. - 18 18 18 18 18 18
Firing Interval - 15 15 15 15 15 15
Type Spread - 20 Divergent
Sea Conditions - Moderate to heavy swells
Overhaul Activity -

Remarks - Tube 5 fired normally but torpedo #53403 fired prematurely approximately 2-3 seconds later.

— page 18 —
1. MINES
None seen or suspected.

(J) ANTI-SUBMARINE MEASURES AND EVASIVE TACTICS

Attack #1. This three ship convoy was protected by 4 small escorts and 1 destroyer. No evidence exists that we were discovered prior to firing but immediately after the preemptures 4 of the escorts closed in. One fired a very's rocket and flashed a light on our bearing. A combination of echo-ranging and listening was used in the search after the initial barrage of seven depth charges but we were apparently never exactly located since only 4 more were dropped and they at considerable distance (500 yards or more).

Evasion consisted of running at 300 feet under a marked temperature gradient. Search continued for about 5 hours after which only distant echo-ranging was heard astern for the remainder of the day in the vicinity of the attack.

Convoy was zig-zagging, using wide zigs during darkness and escort vessels were each ranging constantly. One small escort was about 1500 yards on each quarter of the convoy with the destroyer near the center of the formation.

Attack #2. Convoy was zig-zagging on ten minute legs on courses 000-030-000-330-000 etc. CHIDORI destroyer was in van about 1000 yards from the leaping ships which were in two columns 1000 yards interval. The other escort, which was never seen fully enough to identify, was about 1500 yards astern of the formation. Escorts were not each ranging prior to the attack. Immediately after the preemptive depth charge was dropped about 4 minutes after firing. Although retiring at 18 knots both escorts closed in to less than 1500 yards at which time we submerged to 300 feet (very little gradient). A total of 7 more depth-charges were dropped, none close, but the search both by echo-ranging and listening continued for about 3 hours. The convoy, in the meantime, 'changed course to the westward as evidenced by its position when discovered again the next morning. Our SJ radar has been more than a blessing.

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0-N-F-I-D-E-N-T-I-A-L

forth across the screen so rapidly that it could not have been an aircraft. It looked similar to interference obtained before from other "SD" radars. When first observed, it flickered on and off about 25 times per minute. Then it appeared for a few minutes at 5 second intervals, then a few minutes at 10 second intervals, and after a total time of fifteen minutes it disappeared and was not seen again. Ship's position at the time was Latitude, 19-20 N, Longitude, 151-40 E. The sky was clear and bright and the visibility unlimited. Cloud coverage was about 5%.

(N) SOUND GEAR AND SOUND CONDITIONS

Performance of all sound equipment was satisfactory with the exception of the starboard sound head training motor mentioned above.

The "JP" topside sonic listening device is of little value while making headway through the water except for detecting own ship's noises.

Sound conditions were generally excellent. Sound picked up the convoys at about 10000 yards while we were making 4 knots or above. No reef noises were heard while in the area.

(0) DENSITY LAYERS HERE FOUND AS FOLLOWS: (ALL DEPTHS ARE KNOT DEPTHS).

0330 GCT 10 September 1943. Lat. 25-49 N, Long. 175-42 W. Layer of increased density at 200 feet.

0005 GCT 22 September 1943. Lat. 08-45 N, Long. 140-18 E. Layer of increased density at 180 feet.

0200 GCT 25 September 1943. Lat. 08-45 N, Long. 135-20 E. Layer of greater density at 160 feet.

1705 GCT 26 September 1943. Lat. 08-20 N, Long. 134-00 E. Layers of increased density at 170 feet and 210 feet.

0530 GCT 27 September 1943. Lat. 08-54 N, Long. 134-00 E. Layer of increased density at 210 feet.

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U.S.S. MUSKALLUNGE (SS262)

C-O-N-P-I-D-E-N-T-I-A-L

(P) HEALTH, FOOD AND HABITABILITY

Health was generally excellent with only the usual minor cases of colds, constipation etc. Minor injuries caused the loss of six man-days.

The food was good and usually well prepared and varied. It took a month to teach our baker how to bake.

Habitability was excellent at all times. A small air conditioning unit installed in the radio room, similar to that in the conning tower, will be very beneficial.

(C) PERSONNEL

The usual difficulties encountered with unseasoned personnel were as expected. However, they rapidly shook down into a coordinated, fast thinking crew able to carry out the tasks at hand and before departure from the patrol area were an excellent crew. The performance of duty and morale was high at all times.

Of the officers Lieut.-Comdr. J. R. Madison, USN, performed meritorious work as diving officer under several most trying conditions. Lieut. J. B. Shepherd, III, USN, is to be commended on his continuous study, hard work and interest in the Mark XVIII torpedoes.

(R) MILES (NAV) STEADED - FUEL USED

Pearl to Midway 1322 miles - 19,500 gal.
Midway to Area 3069 miles - 33,500 gal.
In area and chase 2355 miles - 20,400 gal.
Area to Midway 3496 miles - 37,030 gal.
Midway to Pearl 1270 miles - 19,300 gal.

Totals 11512 miles - 129,730 gal.

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15 days
: 14 days
: 19 days
: 9 days
: 48 days

U.S.S. MUKLUNG (SS262)

C-O-N-F-I-D-E-N-T-I-A-L

(S) DURATION.
Days enroute to area (via Midway)
Days in area and chase
Days enroute to base (P.H. via Midway)
Days submerged
Duration of patrol

(T) FACTORS OF ENDURANCE REMAINING.
TORPEDOES    FUEL    PROVISIONS    PERSONNEL FACTOR
13    2040 gal.    30 da.    15 da.

Limiting factor this patrol - fuel consumption.

(U) REMARKS.
1. The smoking of the main engines cleared up considerably after fueling at Midway enroute to base, leading to a belief that contaminated fuel received in Pearl may have caused the smoking and excessive rining wear. Several samples of oil have been taken for analysis.
2. Bottom fouling has decreased ship's speed about 11%.
3. The installation of a PPI radar is an urgent addition to make night attacks on escorts and convoy more effective, this especially so when escorts are provided with radar. No indication of radar on escorts was noted.

FRANCOIS
W. A. SAUNDERS.

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1. The MUSKALLUNGE started her return trip to Pearl after thirteen days in the patrol area. Early departure was dictated by expenditures of fuel oil and unsatisfactory performance of main engines.

2. The main engines were a constant source of concern and hard work throughout the patrol because of excessive piston ring wear, which in turn caused high fuel oil consumption, smoking, reduction in power and general unreliability. There is no doubt that these engine troubles adversely affected the efficiency of the patrol.

3. There is a possibility that MUSKALLUNGE obtained some defective fuel which may have been partially responsible for the engine difficulties. However, it has been noted that both JACK and MINGO experienced similar troubles during their last patrols which indicates a deficiency in design or material in this type engine. None of the main engines in the MUSKALLUNGE has a total of more than 1,000 hours operation.

4. Aside from the main engines the materiel condition of the ship is very good and appearance is excellent. It is expected that the engine work will require a three weeks refit period.

— page 24 —
5. The MUSKALLUNGE carried Mark 18 torpedoes in the forward torpedo room on this patrol and attention is invited to the complete comments on the servicing and performance of these torpedoes contained in enclosure (C) to the report of patrol.

J. P. CROMWELL.

CC to:
CO MUSKALLUNGE
CSS 12.
CSD 122.

— page 25 —
5-4/416-3
Serial 0277
C-O-N-F-I-D-E-N-T-I-A-L
SECOND ENDORSEMENT to
MUSKALUNGE Contr. Ltr. "Report
of first war patrol", SS262/AL6-3
Serial 019 of 26 October 1943.

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

Subject: U.S.S. MUSKALLUNGE - Report of First War Patrol Comments.

1. Forwarded.

2. Commander Submarine Division FORTY-THREE has
reported as directed on the material condition of the U.S.S.
MUSKALLUNGE. Commander Submarine Squadron TWELVE will comment
on her torpedo fire and tactics.

J. H. BROWN, Jr.

Copy to:
CSS 12.

— page 26 —
35-12N/45-12E
Serial 059
Care of Fleet Post Office,
San Francisco, California,
27 October 1943.

THIRD DIVISION to
U.S.S. HUSKADORITE (35262)
Report of First Air Patrol.

CERTIFICATE

From: The Commander submarine Division One T. T. T. T.
To: The Commander in Chief, United States Fleet.
Via: (1) The Commander submarine Squadron T. T. T.
(2) The Commander submarine Force, Pacific Fleet.
(3) The Commander in Chief, U.S. Pacific Fleet.

Subject: U.S.S. HUSKADORITE (35262) - Report of First Air Patrol.

1. The first war patrol of HUSKADORITE occupied a period of 48 days (TOTAL 48 days) of which 14 days were spent in the area to the northwest of PALU, or in chase of enemy convoys. Material first endorsed on this patrol has been prepared by Commander submarine Division T. T. T. T., who is accomplishing the task of the ship.

2. Poor torpedo performance (three lark 18 peratures of twelve torpedoes fired) and poor N.O.U. engine performance marred a patrol which the captain, officers and crew strove with night and rain to make successful.

3. There were eight enemy ship contacts embracing four convoys, a patrol vessel, a hospital ship and a tanker. Two heavily escorted convoys were attacked most aggressively on the surface at night, a firing range of 1800 yards being attained in each case. Precautions and resultant escort action prevented continued development of the convoys.

4. The Division Commander congratulates the Commanding Officer, Officers, and Crew for inflicting what is believed to be the following damage:

1. Freighter (CITY KARU CLASS)* 8,600 tons.
1. Frigate (TATU-ULA KARU CLASS) 4,865 tons.
TOTAL DAMAGE 13,465 tons.

*A possibility exists that the second torpedo fired hit this ship or a following unidentified freighter of about 4,000 tons.

F.3. ARDER.

— page 27 —
F05-12/A16-3/PB5-122  SUBMARINE SQUADRON THELV  VII
Serial 090
Cdr of Fleet Post Office,
San Francisco, California,
1 November 1943.

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

Subject:  U.S.S. USKALIUGES (83262) - Report of First War Patrol.

1. The remarks made by the Commander Submarine Division One Twenty Two relatives to the torpedo fire and tactics employed, the aggressive manner in which the attacks were made, and the summation of damage inflicted on the enemy are concurred in.

2. The Commander Submarine Squadron Twelve congratulates the Commanding Officer, Officers, and Crew for having conducted a successful first war patrol, especially under the trying conditions which existed throughout the patrol.

J. B. GRIGGS.

— page 28 —
11 C1648
Serial 01575
Care of Fleet Post Office,
San Francisco, California,
1 November 1943.

FIRST ADDRESS TO
MUSKALLUNGE Report
of First War Patrol.

CONSURSPAC PATROL REPORT NO. 292
U.S.S. MUSKALLUNGE - FIRST WAR PATROL.

From: The Commander Submarine Force, Pacific Fleet.
To: The Commander-in-Chief, United States Fleet.
Via: The Commander-in-Chief, U. S. Pacific Fleet.

Subject: U.S.S. MUSKALLUNGE (5622) - Report of First War Patrol.
(7 September to 25 October 1943).

1. This is the first war patrol of the MUSKALLUNGE, but the fourth for the Commanding Officer. MUSKALLUNGE conducted aggressive attacks on two convoys, and damaged ships in both of them.

2. Because of engine difficulty and high fuel consumption the MUSKALLUNGE was forced to leave the area early.

3. Evidence is insufficient to credit MUSKALLUNGE with hitting two freighters in its first attack.

4. This patrol is considered successful for Combat Insignia Award.

5. The Commander Submarine Force, Pacific Fleet, congratulates the Commanding Officer, officers, and crew for having inflicted the following damage upon the enemy.

D-E-H-A-G-E-D

1 - Passenger-Freighter (QUINTO MARU class) 8,813 tons
1 - Freighter (TARUSIMA MARU class) 4,865 tons

TOTAL 13,678 tons

C. A. LOCHMOOD, 22, LT. 20

Distribution and authentication
on following page.

59200 FILMED

— page 29 —
1/2-10/16-3(8)/(16) SUBMARINE FORCE, PACIFIC FLEET 1d

Serial 01575

Care of Fleet Post Office,
San Francisco, California,
1 November 1943.

FIFTH ENDORSEMENT to
MUSKALLUNGEE Report
of First War Patrol.

CONSUMBSPAC PATROL REPORT NO. 292
U.S.S. MUSKALLUNGEE - FIRST WAR PATROL.

Subject: U.S.S. MUSKALLUNGEE (SS262) - Report of First War Patrol.
(7 September to 25 October 1943).

DISTRIBUTION:
(Complete Report)
Cominah (5)
CNO (5)
Cinco (6)
Intel. Csn. Pac.
Ocean Areas (1)
Conservpac
(Adv. Base Plan. Unit)(1)
Cinclant (2)
Corsubplant (8)
S/M School, NL (2)
Consopac (2)
Comsoopac (1)
Comsoopac (2)
CTF 72 (2)
CTF 16 (1)
Consubpac (20)
SUBA/D, NL (2)
ConsubpacSubordcom (2)
All Squadron and Div.
Commanders, Subspace (2)
All Submarines, Subspace(1).

NOTE: THIS REPORT WILL BE DESTROYED PRIOR TO ENTERING PATROL AREAS.

— page 30 —
1944-01-21
SS262/A16
Serial 01
U.S.S. MUSKALLUNGE (SS262)
Care of Fleet-Post Office;
San Francisco, California,
21 January 1944.

From: The Commanding Officer:
To: The Commander in Chief, United States Fleet.
Via: (1) The Commander Submarine Division 122.
       (2) The Commander Submarine Squadron 12.
       (3) The Commander Submarine Force, Pacific Fleet.

Subject: U.S.S. MUSKALLUNGE - Report of War Patrol
number two.

Enclosure: (A) Subj.ot Report.
       (E) Track Charts (consumpt. only).

1. Enclosure (A), covering the second war
patrol of this vessel conducted in area in the Western
Carolines south of Guam, during the period 27 November
1943 to 21 January 1944 is forwarded herewith.

M. P. RUSSELLO.

DECLASSIFIED-ART. 0445, OPNAVINST 5510.1C
BY OP-0469-C DATE 5/24/42
DECLASSIFIED

— page 31 —
1. USS MUKALUNGE (SS262) 2. C-O-1I-P-I-D-E-N-T-I-A-L 3. Report of Second War Patrol. 4. (A) PROLOGUE. This vessel returned from its first war patrol on 25 October 1943. Refit was conducted by Submarine Base, Pearl Harbor, T.H. On 4 November 1943, Commander H.P. Russell, U.S. Navy relieved Commander W.A. Saunders, U.S. Navy as Commander Officer. Upon completion of refit on 15 November 1943 six days were allocated to training and two days to loading. Repairs included routine dry docking. (B) NARRATIVE 27 Nov. to 1 Dec. 0625(1) Contacted friendly plane. 1 Dec. Due to poor weather escort planes did not come out at dawn so proceeded into midway independently and at mooried starboard side to U.S.S. THRESHER outboard of U.S.S. BUFFALO. 1628(Y) Departed midway for patrol area under air coverage. 1 Dec. to 7 Dec. Enroute area conducting daily training dives, fire control drills and emergency drills. 8 Dec. 1046(K) Pip on SD Radar indicating plane at 24 miles distance. Pip disappeared.

— page 33 —
1255(K) 1356(K) 1856(K)
: 1437(K) 1450(K)

15 Dec.
16 Dec.
18 Dec.
19 Dec.
1533(K) 1804(K)

C-0-N-P-I-D-E-N-T-I-A-L
Report of Second War Patrol.

Surfaced on course 3580 true.
Submerged.
Surfaced on course 0280 true.

Plane contact on SD Radar, 22 miles, with evidence of jamming.
Radar indicated plane at 11 miles.

During the past four or five days the visibility has been very poor due to intermittent showers and heavy clouds with the sky overcast most of the time.

Routine trim dive.
Surfaced on course 1180 true.
Course 3580 true patrolling north and south on two hour legs.

Made a routine trim dive.
Surfaced.
Made dive to routine torpedoes, and at surfaced.

Sighted what later proved to be a two-nasted patrol vessel of about 500 tons, apparently lying to, bearing 1080 true, distance 8 miles.
Submerged and headed toward patrol vessel to investigate it.
Gave up the chase as the patrol vessel looked too small to bother with.
Surfaced. Changed course to 1780 true. Resumed surface patrol.

— page 34 —
20 Dec.
1325(K) Sighted mast of a ship bearing 051° true.
1328(K) Submerged.
1350(K) Surfaced to close the range as we could not see him submerged.
1430(K) Made a quick dive after closing target changing course to 038° true. Target proved to be same vessel sighted yesterday. As before he seemed to be either lying to or circling on station at very slow speed.
1802(K) Surfaced.
1825(K) Sighted a rod flare bearing 123° true. Worked up to three engine speed closing flare.
1950(K) Changed course to 038° true.
2050(K) Nothing having been picked up by radar after over two hours search, slowed and resumed surface patrol.

21 Dec.
1450(K) SD Radar contact, 6 miles, closing rapidly. Dived to 200 feet. Plane was not seen by lookouts.
1825(K) Surfaced. So far we have covered a portion of the northeast corner of the area, crossed the area to westward, patrolling the southeast corner for several days and then patrolled the entire southern end of the area for a week with no results although considerable shipping was expected on this PALAU-TRUK route. Decided to work our way north along the eastern edge of the area.

22 Dec.
0102(K) While making passage between ORAITILIPU BANK and WEST FAYU ISLAND the fathometer showed water shoaling rapidly. Proceeded cautiously in a westerly direction and maneuvered around shoal spot. A minimum depth of 12 fathoms was noted. The Navigator immediately established the ships position by observation and the results indicated that perhaps the shoal marked on this chart is about 10 miles east of its actual position or the shoal we ran over is not on the chart.

-4-

— page 35 —
0-0-N-F-I-D-E-N-T-I-A-L
Subject: Report of Second War Patrol.

0540(K) Submerged.
1836(K) Surfaced, making 2 engine speed on course 3030.
2220(K) Sighted white light bearing 3540 true.
2225(K) Sighted a white light bearing 0010 true. These might have been picket boats stationed as guides for convoy later encountered.
2235(K) Contact on the SJI Radar bearing 2600 true, 14,000 yards distance. Went to four engine speed, 17 knots, turning toward target to close.
2224(K) Closed range to 12,400 yards and commenced surface, night radar approach on target. Target appeared to be zigging from 0750 to 1700 true about every five minutes.
2313(K) Picked up two escorts at range of 10,200 yards one on the starboard bow ahead, and one on the port quarter astern.

23 Dec.

00-00-06(K) Changed course to 1680 true going ahead standard to firing position, range 6,500 yards.
00-12-30(K) Commenced firing torpedoes, initial range 3850 yards. After firing first couple of torpedoes, target appeared to give a 90 angle on the bow instead of a 70 angle, and it was decided to fire a full salvo of six torpedoes, after firing sixth torpedo ordered right full rudder.
00-16-18(K) First Explosion.
00-16-58(K) Second Explosion.
00-17-05(K) Third Explosion.
00-17-14(K) Fourth Explosion.

. All of the above sounded like torpedo explosions. Angle on the bow of target did not change from 900 port. Excessive smoke rose in large cloud which blanketed the ship from bridge to after well deck. Ship seemed dead in water.
0019(K) Rear escort in pursuit firing was appeared to be 20 caliber tracer in our general direction, followed by other escort, who also fired similarly - neither one shooting within 300 of our bearing.

-5- ENCLOSURE (A)

— page 36 —
0021(K) Changed course to 0000 true. Heard several depth charges.
: 0030(K) Target still smoking, not having moved. The smoke covers a larger area of the target than before but is not so high.
: 0047(K) Last pip on target at 17,770 yards. Target still in same position.
: NOTE: The ship had not smoked at all until after firing, which with general appearance, indicated ship might have been a diesel ship similar to the COLUMBIAN [NARU, page 169, Identification book].
: 0051(K) Changed course to 3030 true. Going ahead standard on 3 main engines.
: 0545(K) Submerged.
: 1845(K) Surfaced going ahead on 3 engines on course 3030 true.
: 2225(K) Changed course to 0880 true.
: 2237(K) Slowed to one engine speed.

: 24 Dec.
: 0516(K) Submerged to 200 feet. No temperature gradient found. Then patrolling at periscope depth.
: 1830(K) Surfaced, patrolling on one engine.

: 25 Dec.
: 0538(K) Submerged for trim dive.
: 0615(K) Surfaced, continuing surface patrol.

: 26 Dec.
: 0604(K) Made routine trim dive. No temperature gradient to 200 feet.
: 0645(K) Surfaced.

: 27 Dec.
: 0555(K) Made trim dive.
: 0643(K) Surfaced, going ahead on 3 engines making good 15 knots. Weather making up, overcast, seas very rough.

-6-

— page 37 —
1000(K) Steadfast smoke bearing 0100 relative. Steadied on course 0250 true. Smoke bearing 1250 true.
: 1050(Z) On course 1200 sighted ship dead ahead.
: 1120(K) Charged course to 1300 true. Concerned tracking ship for the rest of the afternoon. Kept charging to the right ena left, keeping him in sight while making an ena around in order to attain a surface, night radar attacks position.
: 1830(K) Steadied on course 0880 true, making turns for 15 knots, with intention of closing target until radar contact was made.
: 2004(K) Pip on the radar, bearing 3100 true, range 18,800 yards. Commenced approach.
: 2213(K) Four pips on the radar, bearing 2750 true, with the nearest on being bearing 2750 true, distance 8,700 yards. Nearest ship bears 2750 true, range 6,750 yards. At this point it was determined that there was one fairly large ship (the one sighted in the afternoon) and five escorts. The two leading escorts looked like CHIGRIS and one other seemed just as large.
: 2233(K) With bow pointed toward the large target, slowed, waiting for bearing to come on as a zig had put us quite close to the track.
: 2246(K) Ahead full. Angle on the bow about 700, range about 2,000 yards.
: 2247(K) Commenced firing 4 torpedoes; #3, 4, 5; and 6, with initial firing range about 1,500 yards, and then ordered full left rudder.
: 2248(K) A tremendous long and blinding explosion. It looked like the target had blown up into many pieces. With the explosion there was flame which seemed to extend practically to whole target length and at least four hundred feet high, with varying colors. From white, light blue, and pink. Chunked and pieces of metal rained on and all around the hulls and several large splashes were seen ahead of us as we were swinging. What was left of

— page 38 —
1. U.S.S. MUSKALLUNGE (SS262)
2. C-O-N-F-I-D-E-N-T-I-A-L
3. Subject: Report of Second War Patrol.
4. 2248-30(K) Deep submergence was ordered. The boat was leveled off at 367 feet. While submerging, several men heard what seemed to be pieces of metal bouncing on deck and on the superstructure.
5. 2250(K) First series of three depth charges were dropped.
6. 2251(K) Two depth charges.
7. 2252(K) Three depth charges.
8. 2253(K) Eight depth charges. Escorts could be heard searching.
9. 2254(K) Unidentified water noises, of gurgling nature on bearing of target about 330° relative.
10. 2359(K) Changed course to 320°, escorts making large circles and listening. No echo ranging heard. There is a fair temperature gradient between 250 and 350 feet.

29. Dec.
11. 0100(K) Escorts still circling but at increasing distance away from our position.
12. 0654(K) Ended boat up to periscope depth - nothing in sight. Continued at periscope depth away from the scene of action.
13. 1818(K) Surfaced on course 0280 true, going ahead on one engine.

30. Dec.
14. 0518(K) Made trim dive.
15. 0625(K) Surfaced.

31. Dec.
16. 0548(K) Made trim dive. After submerging, series clapper switch, on stern planes broke.
17. 0721(K) Repairs made and surfaced. Seas continue rough.

1. Jan.
18. 0554(K) Trim dive.
19. 0632(K) Surfaced.

— page 39 —
3 Jan.
0538(K) Trim dive.
0611(K) Surfaced.

4 Jan.
0536(K) Trim dive.
0634(K) Surfaced.

5 Jan.
0528(K) Trim dive.
0626(K) Surfaced.

6 Jan.
0608(K) Trim dive.
0710(K) Surfaced.
2128(K) Picked up radar interference; bearing about 315° true.
2215(K) Pip on the radar, dead ahead, distance 21,000 yards.
Commenced tracking on one engine, changing course to 094° true.

7 Jan.
0348(K) Range 12,600 yards. Commenced approach on leading column.
0445(K) Tubes ready for firing.
0501(K) One large tanker bearing 313° true, distance 4,300 yards, with escort up ahead of him. Other tanker with escort ahead on leading tanker's starboard quarter several thousand yards' distant.
0502(K) Ahead standard, turned toward near tanker to fire.
05-05-50(K) Commenced driving four torpedoes, with eight second intervals, #3, 5, and 6, with initial range of 3100 yards. On completion of firing, radar picked up an escort moving in fast on starboard quarter, headed for Muskallunge. It was then noted that #1 engine was smoking excessively, and it is believed that this is the reason the escort picked up the Muskallunge, as targets,

— page 40 —
0508(K) With escort less than 1200 yards away made quick dive.
: 05-08-55(K) One torpedo explosion.
: 05-09-05(K) Second torpedo explosion.
: 05-10-20(K) First of series of four depth charges.
: 0514(K) Echo ranging bearing 1300 relative.
: 0520(K) Second of series of four depth charges.
: 0523(K) Echo ranging about 1200 relative.
: 0576(K) Started up slowly to periscope depth.
: 0842(K) All clear. Surfaced. Number 1 engine, due to ring trouble, is out of commission. Commenced chasing convoy on two engines on course 0880 true. Charging battery on remaining main engine.
: 1103(K) Continued charge on auxiliary engine and shifted to three engine combination. Due to heavy seas, average speed through the water, by pit log, was 12 knots.
: 2057(K) Pip on the radar, bearing 0940 true, distance 16,000 yards. Started tracking target.
: 2077(K) Small fire in the SJ Radar - secured for repairs. Radar in operation, but working poorly. Lost contact with target. Since target could not be picked up ahead, it is believed he had zigged to the left and at course was changed to the left to 0680 true, making two engine speed, about 11 knots in this sea, searching for convoy.

8. Jan.
: 0243(K) All possibility of contact being lost, slowed to one engine speed.
: 0553(K) Divd making submerged patrol in order to save fuel and make repairs to the SJ Radar.
: 1600(K) Radar repairs completed which included changing magnetron and converter and tuning all equipment except the antenna and at
: 1640(K) surfaced, on course 0800 patrolling on the surface on 1 main engine, charging batteries on 3 and 4, and tuning in radar. Efforts to tune in antenna with radar proved futile because it turned out spare converter and magnetron were not matched. It was decided then to replace the

— page 42 —
15 Jan.
0614(M) Trim dive;
0708(M) Surfaced.

16 Jan.
0607(M) Trim Dive.
0706(M) Surfaced.

17 Jan.
0535(Y) Trim dive.
050(Y) Surfaced.
0600(Y) Changed course to 090° true.
2023(Y) Changed course to 092° true.

13 Jan.
0549(X) Changed course to 094° true.
1347(Y) Sighted water tower Johnston Island bearing 100° true, 16 miles.
1477(Y) Moored Johnston taking fuel.

22 Jan.
0635(XW) Plane on SD; nine miles;
0201(XW) Plane on SD, four miles.
1335(XW) Sighted smoke 070 relative distance 20 miles.
1702(XW) Sighted ship 110° true, distance 12 miles.
1617(XW) Interference on SD and SJ radars.
2015(XW) Changed course to 076° true.
2309(XW) Interference on SD radar.

21 Jan.
0420(.W) Contact SD radar 6 miles.
0454(.W) Contact SJ radar 12000 yards. Sighted and exchanged calls with DE20. Various contacts on SD.
0626(XW) Sighted and exchanged calls with escort PC582 proceeding Pearl on course 005° true.
1030(XW) Moored Submarine Base, Pearl Harbor, T.H.

-12-

— page 46 —
U.S.S. MUSKALLUNDE (SS262)

Subject:  Report of Second War Patrol.

(H)

U.S.S. MUSKALLUNDE  Torpedo Attack #1  Patrol #2.

Time - 2100(K)  23 December 1943  -  Lat. 10-04N Long. 143-48E

TARGET DATA -  DALAGE INFLICTED

Description:  Convoy - One large passenger freighter and 2 escorts.

Ships sunk:  None.

Ships damaged or probably sunk:  One freighter, (type unknown) with one probable hit.

Damage determined by one torpedo explosion 4 minutes after firing heard throughout the boat. Radar plot for 45 minutes during evasion on surface shows target stopped. 3 other explosions which also sounded like torpedoes but times seem too long after firing.

Target Draft 20 feet. Course 1400 T. Speed. 9 Range 3750

ON SHIP DATA

Speed 12 Course 2000  Depth - Surface Angle 17-22R.

Type Attack  Night surface - Combined Radar and visual from bridge.

-16-  ENCLOSURE (A)

— page 47 —
U.S.S. MUSKALLUNGE (SS262)

C-O-N-F-I-D-E-N-T-I-A-L

Subject:  Report of Second War Patrol.

(H)

U.S.S. MUSKALLUNGE  Torpedo Attack #2  Patrol #2.

Time - 2300(K)  28 December 1943 - Lat. 9-13N  Long. 147-00E.

TARGET DATA - DAMAGE INITIATED

Description:  Convoy - One large freighter, escorted by 3 destroyers and 2 smaller vessels.

Ships sunk:  1 Freighter.  Similar to MURATO, 8215 tons.

Ships damaged or  None.

probably sunk:  Damage was determined by properly timed torpedo explosions and by sight from bridge where ship was seen to disintegrate.  After diving sound heard noises of ship breaking up on bearing of target.

Target Draft  20 feet.  Course 160°  Speed  8.5  Range  1500

C/N SHIP DATA

Speed  12  Course  260°  Depth - Surface  Angle  0-6L

Type Attack  Night surface - Combined Radar and visual from bridge.

-17-  INCLOSURE  (A)

— page 48 —
U.S.S. MUSKALLUNGE (SS262)
C-O-N-F-I-D-E-N-T-I-A-L
Subject: Report of Second War Patrol.
(H)
U.S.S. MUSKALLUNGE Torpedo Attack #3 Patrol #2.
Time - 0430(K) 7 January 1944 - Lat. 10-38N Long. 142-21E.

TARGET DATA - DAMAGE INFLICTED
Description: Convoy - 2 large tankers escorted by 1 destroyer and 1 other escort.
Ships Sunk: None.
Ships damaged or probably sunk: One tanker (type unknown) with 2 hits.
Damage determined by 2 properly timed torpedo explosions heard throughout the ship, and by SILVERSIDES report that target stopped.
Target Draft 30 feet, Course 060° Speed 11 Range 3100

ON SHIP DATA
Speed 12 Course 020° Depth - Surface Angle 0-31L.
Type Attack Night surface - Combined Radar and visual from bridge.

-18- ENCLOSURE (A)

— page 49 —
U.S.S. MUSKALLUNGE (SS262)
C-O-N-F-I-D-E-N-T-I-A-L
Subject:  Report of Second War Patrol.

| Attack | (1) | (2) | (3) |
|-------|-----|-----|-----|
| Time  | 2100(K) | 2300(K) | 0430(K) |
| Date | 23 Dec. | 28 Dec. | 7 Jan. |
| Location | (lat) | 11-04N | 9-13N | 10-39N |
|       | (long) | 143-48E | 147-00E | 142-21E |
| Number & type Torpedoes | 6 - 14-3A | 4 - 14-3A | 4 - 14-3A |
| Fired on Each Attack | 1 probable | 1 - 4 | 2 |
| Hits | 8,215 |
| Number Sunk (Tonnage) | 7,000 |
| Number Damaged or Probably Sunk (Tonnage) | 7,000 |
| Type of Target | AK or AP | SNR | SIR |
| Range | 3850 | 1500 | 3100 |
| Type of Attack: Per (P) | SIR | SIR |
| Sur (S) Night (N) Rad (R) | 20 | 20 | 30 |
| Estimated draft of target | 10 | 10 | 12 |
| Torpedo Depth Setting | Bow | Bow | Bow |
| Bow or Stern Shot | 120 | 90 | 130 |
| Track Angle | 17 - 22 R | 0 - 6 L | 0 - 3 L |
| Estimated Target Speed | 8.5 | 11 |
| Firing Interval | 8 sec | 8 sec | 8 sec |
| Spread - Amount & Kind | 10 Div | 30 Div | 1/20 Div |
| Was torpedo Performance Satisfactory? | Yes | Yes | Yes |

-19-  ENCLOSURE (A)

— page 50 —
1. MINUS.
2. ATTACK NO. 1 The Convoy consisting of one large ship with an escort astern and another ahead was zigging radically probably changing course periodically and superimposing on this change of course a sine curve constant helm zig. After firing the escorts immediately headed towards their estimated position of the submarine, dropping several charges and shooting what appeared to be 20mm in the submarine's general direction. No echo ranging was heard. No evidence on this or any of the attacks was existent that the submarine's position was discovered prior to firing.

Attack No. 2 The convoy consisted of one large ship and five escorts. Probably 3 of these escorts were Chidori type destroyers or vessels of similar size and design. The formation consisted of the large vessel in the center with 2 Chidories out in front and on either bow. 2 more escorts were placed one on either bow outboard and aft of the two leaders. The fifth escort brought up the rear, astern. The convoy changed base course at dark approximately 900 and ran for about 25 miles before again heading for its base course remaining zig-zagging about 300 either side of its base course remaining approximately ten minutes on each leg.

Counter measures after firing consisted in the escorts running for the submarines position and drop-ing depth charges indiscriminately. The evasive measures used in this and the succeeding attack were to place the scene of battle astern, run deep, (350 feet) below a temperature gradient, and put as much distance as possible between the submarine and the escorts at slow speed. The escorts were heard to echo range, stop and listen, and then come in at high speed dropping depth charges which appeared to be set deep. After losing contact with the submarine the escorts apparently searched by running at slow speed on a special course with the sunken ship as a

— page 51 —
U.S.S. MUKALIUGE (SS262)

C-O-N-F-I-D-E-N-T-I-A-L

Subject: Report of Second War Patrol.

point of departure. Listening, only, was used during this search which proved fruitless. The escorts were very persistent in their search.

Attack No. 3 The convoy's formation consisted of two columns in line of bearing an escort in the lead followed by a tanker. The convoy zig-zagged day and night, as above, approximately 20 degrees either side of the base course for 10 minutes, and as above, changed course radically after dark. Depth charges were used by the escorts in the general vicinity of the submarine only after the attack was consummated. Escape was accomplished by running silent, deep, and away from the explosion. The hunt following the attack was not prolonged, the escorts apparently rejoining their charge.

The night following the attack the convoy changed course approximately 120° and ran all night on this course before coming back to head for its destination.

It is believed that the submarine was sighted at the firing point as strictly thereafter on of the escorts bore down on the submarines at high speed, forcing the submarine to submerge since the range was only 1200 yards when sighted.

In none of the above attacks did any evidence occur of convoys of this nature or of their escorts possessing Radar.

(K) MAJOR DEFECTS AND DAMAGE.

The material condition of the vessel during this patrol was excellent. The only major defect consisting of excessive ring wear in No. 1 main engine. While making approach for attack No. 1 main engine smoked black excessively and upon inspection the cause of the smoke was found to be defective rings. Units Nos. 2 and 7 were pulled and the rings replaced. The rings were worn unevenly, the cold seals were missing, excessive gap clearances were found and the rings appeared to have lost their life. While repairing this engine the shear pins on the supercharger valves were also replaced having been sheared by parts of the broken rings. The engine

— page 53 —
C-O-N-F-I-D-E-N-T-I-A-L
Subject:  Report of Second War Patrol.

(N)  RADAR

The performance of the Radars was in general excellent. The three-convoys picked up were at ranges of 14,000, 18,000 and 21,000 yards respectively. Planes were picked up on the SD at ranges as high as 26 miles.

A casualty occurred to the SJ Radar as follows: During the evening of 8 January 1944 the screen was observed to show a double image. The Radar was not secured as we were in contact with a convoy. Shortly afterwards a small fire was observed in the transmitter causing the radar to be secured. This was caused by a high voltage short and was repaired. The Radar was again put in operation but did not pick up the Convoy signals were weak. The following day the hangtron and converter were changed but it was found that these spares had not been properly matched by the submarine Baco, Pearl Harbor, so that it was necessary to replace the Spare Hangtron and Converter with the ones that were previously in the set.

Later it was determined that the rectifier tubes of which two were replaced was the cause of the difficulty.

(N)  SOUND GEAR AND SOUND CONDITIONS

Performance of all sound equipment was satisfactory with the exception that the training motors are too noisy for silent running and had to be secured while taking evasive action.

A casualty was experienced to the locking rollers on the starboard sound gear. These rollers are of the ball bearing type and were crushed by pressure while at deep submergence. Rollers of the ships design with thicker races were not crushed in the port head and it is suggested that the present roller type bearing be replaced with ones of more rugged construction.

Sound conditions in the area was only fair. The average sound range being approximately 5,000 yards. No reef noises were heard while in the area.

-23-  ENCLOSURE (A)

— page 54 —
2000(K) 13 Dec. 1943, Lat 7-30N Long 143-10E.
    Line vertical to 200 feet at 830F from 200 feet to
    230 feet line went from 830F to 760F.
1305(K) 18 Dec. 1943, Lat 7-99N Long 145-00E.
    Line vertical to 60 feet at 860F then diagonal to
    810F at 200 feet.
1600(K) 19 Dec. 1943, Lat 6-41N Long 146-28E.
    Line was vertical at 860F no gradient.
1700(K) 20 Dec. 1943, Lat 6-33N Long 148-08E.
    Gradient slightly curved from 840F to 820F.
1450(K) 21 Dec. 1943, Lat 6-30N Long 147-45E.
    Line diagonal to 150 feet at 840F and then horizontal
    to 810F.
0802(K) 23 Dec. 1943, Lat 9-00N Long 146-50E.
    Line vertical at 820F.
2306(K) 28 Dec. 1943, Lat 10-00N Long 145-39E.
    Line vertical to 200 feet at 810F then horizontal
    from 810F to 760F.
0510(K) 7 Jan. 1944, Lat 9-13N Long 147-19E.
    Line vertical to 325 feet at 840F then a slight break
    was experienced to 820F at 340 feet.

(P) HEALTH, FOOD AND HEALTHABILITY.

Health during the period of this patrol was exceptionally good. Very few of the personnel suffered from colics, constipation or other minor ailments usually experienced. One man was incapacitated for several days because of what appeared to be a mild case of Climatic Bub. He was treated with sulfa drugs, internally, and apparently is all right.

The food on this patrol was below the average expected in a submarine and below the average previously experienced on war patrols. Improper preparation and lack of propering were contributory factors, however, the determining factor was the lack of sufficient beef, birds eye foods and fruits. This vessel was unable to obtain sufficient of the following commodities when setting out, beef (Steaks especially); fresh frozen fruits and vegetables, canned meats such as chicken, turkey, ham, and in addition was forced to take an overabundant supply of pork, dehydrated and canned fruit and vegetables.

— page 55 —
U.S.S. MUSKALLUNG-E (SS262)

C-O-N-F-I-D-E-N-T-I-A-L

Subject: Report of Second War Patrol

Habitability was excellent at all times and was only slightly uncomfortable because of the tropical nature of the operating area.

(Q) PERSONNEL.

Personnel both officers and enlisted, performed their duties in a highly efficient manner. The high state of material preservation, the few casualties experienced, and above all the performance of duty while in action reflect on the fast development of the crew as a veteran organization.

Outstanding and worthy of special mention were the performances of Lieut.-Comdr. J. R. LADISON, U.S.N., and CHOLM (PA) Emil G. BOETTCHER, U.S.N.

Lieut.-Comdr. LADISON's performance of duties as Executive Officer, Navigator and Assistant Approach Officer were outstanding. More so, however, was the manner in which, following attacks and emergency deep submergence, he dived the boat rapidly to deep depth and while being depth charged, maintained excellent depth control under difficult conditions aiding materially in the enemy escorts losing contact with the MUKALUNGE.

CHOLM BOETTCHER'S untiring efforts and efficiency were a major contribution to this vessel's fine engineering performance during the patrol.

(R) MILES (NAV) STEAMED - FUEL USED

| Item | Quantity | Miles | Fuel Used |
|------||-------||
| Pearl to Midway | 1296.5 | 15,560 | gal |
| Midway to Arca | 2229.8 | 25,795 | gal |
| In Arca | 6213.9 | 55,367 | gal |
| Area to Johnston | 2634.3 | 30,243 | gal |
| Johnston to Pearl | 742.0 | 11,795 | gal |

Totals 13,116.5 miles 138,760 gal

-25- ENCLOSURE (A)

— page 57 —
1. Commander Submarine Division 102.
To: Commander-in-Chief, United States Fleet,
Via: (1) Commander Submarine Squadron 10.
       (2) Commander Submarines Force, Pacific Fleet.
       (5) Commander-in-Chief, United States Pacific Fleet.

Subject: U.S.S. MUSKALLUNGE, Second War Patrol, Comment on.

1. The MUSKALLUNGE Second War Patrol was the first patrol for a new Commanding Officer. This patrol was conducted in an area South of Guam. It extended over a period of fifty-five days, thirty-one of which were spent in the assigned area.

2. Good area coverage was the outstanding feature of this patrol since twenty-seven of the thirty-one days in the area were spent on the surface except for training and trim dives. Despite the many days of daylight surface patrol, the MUSKALLUNGE was forced to submerge only once for aircraft.

3. Attacks
   Three torpedo attacks were delivered, all of which were conducted on the surface at night.

Attack No. 1 was delivered against a single AP or AT accompanied by two unidentified escorts. This attack was made at 3850 yards range and six torpedoes were expended. There seems to be fair evidence that some damage was inflicted but it is not conclusive. It appears that this attack could have been pressed home to much less range without undue hazard.

Attack No. 2 was delivered against a HURATO MARU class vessel which evidently was carrying ammunition. The attack followed an exceedingly well conducted night surface radar approach against a strongly protected zig zagging target. The presence of five escorts indicates either that the target was extremely valuable or that it was the remnant of a larger convoy previously attacked by another of our submarines. In either case, the attack was pressed home with courage and determination and the results were gratifying.

— page 58 —
1/2/1944
SUBMARINE DIVISION ONE HUNDRED TWO
FBS-102/416-3
Serial 02
CONFIDENTIAL

Subject: U.S.S. MUSKALLUNGE, Second War Patrol, Comment on...

Attack No. 3 was delivered against a convoy of two or three tankers and at least two escorts. This contact was made possible through information received from SILVERSTONES who was trailing with torpedoes expended. A long range (3100 yard) attack was delivered against a single tanker with escort and four torpedoes were expended. Evidence of damage inflicted was not observed and is not convincing. Again it is believed that closer firing range should have been attempted. A surprise encounter with an escort at close range following this attack for a factor of 1/2 was made and eventually this fact and the resultant fuel factor weighed heavily in influencing the commanding officers unfortunate decision to break off the engagement with this valuable convoy. This surprise encounter with an escort at close range forcefully demonstrates the advisability of making frequent all-around radar sweeps throughout the approach and attacks.

4. The probable existence of an uncharted bank 10 miles west of ORATILLIPU Bank is noted and should be placed tentatively on all charts of this area.

5. Closer supervision by ships' officers of the variety of food taken on board during the loading period will go far toward elimination of the unsatisfactory food situation as described by the commanding officer under "Remarks".

6. The MUSKALLUNGE will be given voyage repairs by SPERRY after which she proceeds to Mare Island for reongening.

7. Commander Submarine Division One Hundred Twenty Two joins Commander Submarine Division One Hundred Two in congratulating the Commanding Officer, officers and crew of the MUSKALLUNGE upon this successful patrol and for the damage inflicted upon the enemy.

FRANK T. WATKINS

— page 59 —
05-10/A16-3
Serial 021
Confidential

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

Subject: U.S.S. MUSHALUNG, second patrol, Comment on.

1. The comments of Commander Submarine Division One
   (undred Two are well taken, concurred in, and covers the patrol
   thoroughly.

2. In addition, it is noted with significance the
   number of times throughout the report that the Commanding
   Officer reports interference on the SD radar.

3. In general, firing ranges appear to be excessive
   in view of the very dark night conditions prevailing. There
   it deemed not prudent to conduct night surface attacks at
   closer ranges, consideration may well have been given to radar
   completing the attack phase at closer ranges by going to radar
   depth.

4. The Commander Submarine Squadron Ten congratulates
   MUSHALUNG upon the damage inflicted upon the enemy and
   recommends that she be credited as follows:

SUNK

1 - AK or AE (HUATO MAHU Class) 8215 Tons

Data: 8215

1 - AK or AP (Type unknown)

C. F. EIGH.

C. F. EIGH.

— page 60 —
1- FREIGHTER (NUROTO MARU class) - 8,215 tons (attack No. 2).
    D-A-M-A-G-E-L
1 - PASSENGER FREIGHTER (COLUMBIA MARU class) - 5,615 tons (attack No. 1).
1 - TANKER (CLASS UNKNOWN) - 8,000 tons (attack No. 3).
Total - 13,615 tons

DISTRIBUTION:
(Complete Reports)
(Comanche Reports) (5)
(Comanche) (5)
(Comanche) (5)
(Comanche) (6)

— page 61 —
0-10
Serial: 0-10
Care of Fleet Post Office,
San Francisco, California,
5 July 1944.

DECLASSIFIED
From: The Commanding Officer.
To: The Commander in Chief, United States Fleet.
Via: Official Channels.

Subject: U.S.S. IUSKALLUNGE - Report of War Patrol
Number THREE.

Enclosure: (A) Subject Report.
(B) Track Charts (OFF-71).

1. Enclosure (A), covering the Third War Patrol of this vessel, conducted in the Palau area during period 30 April 1944 to 5 July 1944, is forwarded herewith.

H. P. RUSSELL.

DECLASSIFIED-ART. 0445, OPNAVINST 5510.1C
BY OP-0982- DATE 5/4/42

DECLASSIFIED

— page 62 —
5 July 1944.

CONFIDENTIAL

Subject: Report of Third War Patrol.

(A) PROLOGUE

This vessel returned from its second war patrol on 21 January 1944, and proceeded from Pearl Harbor to Navy Yard here Island for overhaul. Navy Yard overhaul, which included replacing the main engines with Jintons, was completed on 5 April 1944, and vessel departed for Pearl Harbor, arriving 12 April 1944 for voyage repairs. These repairs included drydocking from 13-14 April 1944 and from 18-20 April because of torpedo which became wedged in number 3 torpedo tube enroute Pearl Harbor. Upon completion of raft on 20 April 1944, seven days were allocated to training and two days to loading.

(B) NARRATIVE

30 April to 4 May 1944

1330 (V.i) Underway enroute Midway in company with Archer Submarine; conducting training dives, emergency drills and fire control problems daily.

1 May

0810 (ii) Sighted friendly patrol plane.

4 May

0608 (X) Sighted US Sub. with Sub. and escort planes proceeded into Midway and at

0823 (X) Moored starboard side to Sub. outboard of PROTECT. Made voyage repairs.

5 May to 15 May

1000 (Y) Underway enroute area conducting daily training dives, fire control, battle surface problems, and emergency drills.

— page 63 —
5 July 1944.

Subject: Report of Third War Patrol.

15 May

1020 (K) SJ radar out of commission.

1806 (K) Used up all fuel in #4 M.B.T. Began flushing tank.

16 May

0007 (K) SJ radar back in commission.

0549 (K) Submerged. Starboard starting lever in main control out of commission. This was a casualty similar to that experienced in November 1943, to the port starting lever.

0600 (K) Entered area. Commenced patrolling North and South.

1044 (K) Surfaced.

1540 (K) Submerged to complete repairs on starting lever.

1745 (K) Starting lever (starboard) welded and back in commission.

1941 (K) Surfaced.

17 May

Patrolling submerged.

18 May

Patrolling submerged.

2046 (I) Sighted plane bearing 090° (T) distant 3000 yards. Made quick dive to 200 feet.

2130 (I) Surfaced.

ENDL "A2"

— page 64 —
5 July 1944.

Subject: Report of Third War Patrol.

2232 (I) Sighted plane bearing 2150(T) distant 9000 yards. Made quick dive. The night was very dark and the possibility was considered that the plane or planes were radar equipped.

19 May

0120 (I) Surfaced.

0546 (I) Patrolling submerged.

0627 (I) Heard four explosions believed to be depth charges bearing 2100 (T).

0949 (I) After picking up screws on sound sighted submarine giving 900 port track distance 2000 yards, made ready stern tubes. Submarine was then identified as friendly sub and apparently had surfaced within several thousand yards of MUSHALLUNGE.

1944 (I) Surfaced, returning to patrol station.

21 May

0516 (I) Patrolling submerged.

22 May

0510 (I) Patrolling submerged.

1030 (I) Sighted Yap Island.

1845 (I) Surfaced.

23 May

Patrolling on surface.

24 May

0523 (I) Sighted Fais Island. F. rolling on surface.

INCL "A3"

— page 65 —
5 July 1944.

Subject: Report of Third War Patrol.

25 May

1153 (I) Plane on SD radar distant 2 miles, made quick dive, patrolling submerged.

1833 (I) Surfaced.

26 May

0517 (I) Patrolling submerged.

0626 (I) Sighted Palau Islands.

1335 (I) Sighted ship bearlike 1930 (T) distance 14000 yards; went to battle stations submerged, commenced approach.

1400 (I) Ship identified as hospital ship of TAKASAGO MARU type. Ship on northerly course passed abeam to port at range of 1000 yards. Took photographs.

1424 (I) After hearing screws on sound gear sighted ship bearing 3230 (T) distant 12000 yards angle on bow 500 port. Commenced approach. Identified as KINKAZZE class destroyer, speed 18-20 knots course 1800 (T). Went to normal approach course. Unable to close range, destroyer passed at minimum of 7500 yards range heading for Yoo passage.

1451 (I) Secured from battle stations, resumed normal submerged patrol.

1740 (I) Heard an explosion which sounded like depth charge.

27 May

0200 (I) Two pips on SJ radar bearing 1600 (T) distant 11000 yards. Went ahead full on four main engines tracking targets.

END. "A4"

— page 66 —
0220 (I) Changed course to 1600 (T) to close "pips". Closing both "pips" rapidly.

: 0233 (I) Sighted what appeared to be a small patrol craft. Changed course to 1800 (T) to take evasive action.

: 0350 (I) Stopped evading these pips and searched for original pips. One officer and several men insist they saw the small patrol craft. It was tracked in by radar from 10000 yards to below 3500 yards when evasive action was started. It is quite possible that there were two radar equipped patrol craft on a submarine hunt which together with the idiosyncrasies of the SU-A radar caused us several very difficult hours. Noteworthy is the fact that another such reported radar equipped patrol boat searches in this same general area.

: 0500 (I) Patrolling submerged.

: 0450 (I) Patrolling submerged.

: 0915 (I) Took pictures of land through periscope on bearing 3250 (T).

: 1930 (I) Auxiliary engine out of commission, broken generator fan.

— page 67 —
5 July 1944.

Subject: Report of Third War Patrol.

29 May

0058 (I) Experienced a number of pips similar to those on morning of 27 May.

0503 (I) Patrolling submerged.

1010 (I) Picked up screws on sound bearing 260° (T), commenced approach.

1017 (I) Sighted destroyer of FUBUKI class SHINONOME group on base course 055°(T) distance 12000 yards speed 15-20 knots, was first given zero angle on bow. Target then made two zigs away which did not permit MUSALLIUS to close range below 6700 yards. Turned to follow destroyer.

1054 (I) Sighted tops of what appeared to be another destroyer joining up, approximate range 16000 yards. Both heading for 100 channel. Followed destroyers until out of sight.

1105 (I) Resumed normal submerged patrol.

30 May

Patrolling on surface.

0845 (I) Sighted aircraft bearing 290° (T), elevation 40. Lade quick dive to evade.

1312 (I) Sighted aircraft through periscope.

1840 (I) Surfaced.

— page 68 —
5 July 1944

Subject: Report of Third War Patrol.

0719 (i) Sighted aircraft bearing 310°(T), 6 miles. Made quick dive to evade.

1040 (I) Surface.

1147 (I) Officer of the DdeK sighted plane coming out of rain squall bearing 210°(T), distant 3000 yards, altitude 250 feet. Made quick dive to evade.

1147-45(I) When passing 60 feet received one aerial bomb close aboard on starboard quarter.

1200 (I) Heard what sounded like a depth charge, not very close. At the time of this bombing, a torpedo in the forward room was pulled half way out of the tube for normal routine. The torpedo was being started into the tube when the emergency dive began. The large down angle caused the holding line to part and the torpedo started to slide forward. [MISCH, Donald L., TL2c, USNR, to stop the torpedo from sliding, placed his foot against the tail vane. As the torpedo slid forward until he came up forward, it pulled. [MISCH forward until he came up against a stench bending his foot and causing severe strain and possible fractures of the left foot netatarsal Phalanges and tendons. The leading torpedoman, [MISCH, Harry R., TL1c, USN, also placed his right leg between the tail vane and the tube. He suffered minor contusions to his right leg and ankle, also multiple bruises to the right Tibia.

1849 (I) Surface.

1 June

0503 (I) Patrolling submerged.

— page 69 —
5 July 1944

Sub ject: Report of Third War Patrol.

2 June

0105 (I) Heard three distant explosions which could have been torpedoes or depth charges.

0653 (I) Patrolling submerged.

3 June

0504 (I) Patrolling submerged.

4 June

0453 (I) Patrolling submerged.

5 June

0450 (I) Patrolling submerged.

1905 (I) SJ radar out of commission.

6 June

0105 (I) Sighted lights of ship bearing 3150 (T) distant 14000 yards, went ahead full on four engines on course 3400 (T) to close range.

0126 (I) Passed ship at 4000 yards, identified as hospital ship properly lighted and marked. Ship hove to upon sighting submarine.

0140 (I) Resumed normal patrol.

0455 (I) Patrolling submerged.

1053 (I) Sighted three planes bearing 0080 (T) distant 4 miles on course 1600 (T).

1555 (I) SJ radar back in commission.

— page 70 —
5 July 1944.
Sub ject: Report of Third war Patrol.

7 June
0500 (I) Patrolling submerged.
0917 (I) Sighted plane bearing 096° (T).
8 June
0456 (I) Patrolling submerged.
1453 (I) Sighted squadron of planes bearing 140° (T).
9 June
0503 (I) Patrolling submerged.
0555 (I) Heard pinging on sound gear bearing 245° (T), frequency 17.8 kcs.
0630 (I) Range was closed to 9000 yards and then opened out again. Ship identified as UTCRI class torpedo boat.
0718 (I) Resumed normal patrol.

10 June
0506 (I) Patrolling submerged.
11 June
Patrolling on the surface.
12 June
Patrolling on the surface. Requested an extension of 5 days in the area.

ENCL "A9"

— page 71 —
5 July 1944.

Subject: Report of Third War Patrol.

13 June
Patrolling on surface. Extension granted.

14 June
Patrolling on surface.

2100 (I) Received orders to take new patrol station. Proceeded on two main engines.

15 June
Patrolling on surface.

16 June
Patrolling on surface.

0337 (I) Received information of contact with enemy task force. From LUSKALLUNG position and information available, it appeared that contact could be made about 0800-0900 so went to full speed on course 000° (T).

0337 (I) Changed course to 025° (T), making full speed on four main engines.

0635 (I) No. 1 main engine temporarily out of commission. Making full speed on three main engines.

0650 (I) No. 1 main engine back in commission. Making full speed on four main engines.

DUL "ALO"

— page 72 —
0900 (I) Contact not having been made, changed, course to 0000 (T).
1105 (I) Changed course to 0900 (T).
1200 (I) Changed course to 1350 (T) and slowed to 80-90 combination on two main engines.
1240 (I) Since no contact was made, changed course to 0350 (T) making standard speed charging battery command.
2000 (I) At estimated rendezvous position. No contact. Slowed to one generator combination. Search for area of greatest activity. Informed operations command.

Patrolling on the surface.

17 June

0523 (I) Made trim dive.
0532 (I) Surfaced. Patrolling on surface, one engine speed on course 2050 (T).
0612 (I) Sighted plane bearing 1100 (T), distance six miles on opposite parallel course. Made quick dive to 200 feet. Bridge did not identify plane.
0752 (I) Surfaced on course 2050 (T).
0915 (I) Acting on information concerning tanker's area; went ahead full speed on four main engines to intercept.

[END OF REPORT]

— page 73 —
5 July 1944.

Subject: Report of Third War Patrol.

1135 (I) Was forced down by two engine bomber. Went to 200 feet. Believed at time it was Palau based plane giving tankers air cover.

1250 (I) Surfaced. Making 14 knots on two main engines.

1353 (I) Changed course to 200° (T), patrolling at 10 knots.

1605 (I) Sighted plane distance 12 miles on course 120° (T). Was not sighted by plane.

2130 (I) Decided to proceed to the next assigned patrol station.

2140 (I) Changed course to 180° (T).

18 June

Patrolling on surface.

1010 (I) Sighted plane bearing 310° (T) distant 10 miles. Made quick dive to avoid.

1616 (I) Surfaced.

19 June

Patrolling on the surface.

0855 (I) Pip on SJ radar apparently a plane distant 12,000 yards, bearing 311° (T). Made quick dive to avoid.

1407 (I) Surfaced.

— page 74 —
20 June
Patrolling on the surface.

0843 (I) Pip on SJ radar bearing 315° (T), distant 30,000 yards, pip disappeared and appeared to be a plane. From the plane sightings of last three days it appears there is a mail plane from Palau to Manila which leaves Palau daily at approximately 0700 (I).

21 June
Patrolling on surface.

22 June
1831 (I) Departed patrol station in accordance with instructions enroute Darwin on course 240° (T), two engines (80-90).

23 June
Enroute Darwin, three engines (80-90).

24 June
0519 (H) Submerged. Patrolling enroute Darwin.

25 June
0528 (H) Submerged. Patrolling enroute Darwin.

1011 (H) Sighted two columns cf smoke bearing 299° (T), distant 15 miles. Commenced approach.

1200 (H) Sighted masts and superstructure of one small freighter (possibly 3000 tons), one (possibly 1000 ton) ship and one small escort (unidentified). Range was never closed under 16000 yards.

END "A13"

— page 75 —
5 July 1944.

TAL
Report of Third War Patrol.

1315(H) : 1st contact when targets rounded Buru Island.

1813 (H) : 1st sighted very small ship bearing 2560 (T), distant 1450 yards. This could have been the escort sighted earlier. Continuing search for freighter, and at

2355 (H) : Charged course to 160° (T) continuing enroute Darwin.

26 June

0521 (H) : Submerged patrolling enroute Darwin.

27 June

0500 (H) : Submerged patrolling enroute Darwin.

28 June

1254 (H) : Picked up escort proceeding Darwin.

1525 (H) : Moored port side to Fort Hill Pier, Darwin, Australia. Receiving fuel and provisions. Unloading torpedoes.

ENCL "A14"

— page 76 —
5 July 1944.

Subject: Report of Third War Patrol.

29 June

0700 (H) Departed Darwin, Australia enroute Fremantle.

30 June

Enroute Fremantle.

1 July

Enroute Fremantle.

2 July

Enroute Fremantle.

1145 (H) Passed U.S. Sub. on opposite course. Exchanged calls.

3 July

Enroute Fremantle.

4 July

Enroute Fremantle.

1345 (H) Passed and exchanged calls with friendly submarines. ...
G.A.L.

5 July

0635 (H) Sighted and exchanged calls with escort: [SIGHTED: text here] proceeding to Fremantle.

0944 (H) Moored starboard side to [MOORED: text here] U.S.S. GRIFFIN.

— page 77 —
5 July 1944.

Subject: Report of Third War Patrol.

(C) WEATHER
The weather enroute to the area was exceedingly good. Clear skies and calm seas were experienced all of the way. In the area the weather was calm and mild. Skies were in general overcast from 60 to 100 percent, there generally being two layers. The sea was a flat calm broken occasionally by a slight chop. At times, particularly at night, the sea took on an oily appearance during which times the weather was musty with low lying clouds. Numerous rain squalls were experienced.

(D) TIDAL INFORMATION.
Similar to that outlined in existing publications. Currents varying from .5 to 1.5 knots were experienced.

(E) NAVIGATIONAL AIDS.
In the western approach to Palau's main channel two white lattice-work markers, evidently marking the entrance range of the channel, were observed.

— page 80 —
5 July 1944.

CONFIDENTIAL
Subject: Report of Third War Patrol.

(H) ATTACK DATA
None.

(I) MINING
None.

(J) ANTI-SUBMARINE MEASURES AND EVASION TACTICS
It is considered that the aircraft started in the vicinity of the Islands was very effective as an anti-submarine measure. Even when several hundred miles from Palau the KUSSAILLUNGE was forced down quite frequently. The night flying aircraft encountered on the night of 16 May are noteworthy. It is suspected, from the planes persisting that (it is) they were radar equipped.

During the night of 25 May two small anti-submarine vessels were encountered. From their action in giving chase it is supposed that they were radar equipped. Evidently it was their purpose to make nightly an anti-submarine sweep out from Yoo Passage.

The bombing attack on 31 May was made from very low altitude with plane using rain squall as cover.

(K) LAJOR DEFECTS AND DAMAGE.
The material condition of the vessel during this patrol was, in general, excellent. No damage due to enemy action was experienced.

On 30 April 1944, the third stage cooler on number two high pressure air compressor carried away and was found to be leaking. This unit was renewed prior to departure from Pearl Harbor. After being underway for an hour the fourth stage cooler on number one air compressor sprang a leak. Attempts were made to silver solder the break but were unsuccessful.

KILL "A19"

— page 81 —
5 July 1944.

Subject: Report of Third War Patrol.

On 3 May the fourth stage cooler on number two suffered a similar action leaving both compressors out of commission. New coolers were drawn in lidway and were installed. A spare fourth and third stage cooler were provided.

On 16 May 1944, the starboard starting lever on the main control stand developed a crack in the vicinity of a weld. This prevented the lever from operating. The starboard was removed, welded, screwed and reinstalled. The cause of this break was a faulty weld and was due to a previous casualty to the port lever. It is suspected that this situation is investigated and remedied at the earliest opportunity as a casualty of this nature could be a serious if happening at an in-opportunity moment.

On 25 May the T.D.C. was found to be giving incorrect solutions forward. Upon inspection it was found that some of the gears in the proportionator unit were binding. As the gears are in an inaccessible location in the rear of the machine repairs could not be effected. Because of this casualty the T.D.C. could not have been used for setting gyro's on a forward tube shot. The T.D.C. will have to be removed in order to effect repairs.

On 28 May after the auxiliary engine had been on charge for twenty minutes and carrying a load of 600 amperes at 1200 turns the generator apparently short circuited and tripped the after breakers. The engine was shut down immediately, when the throttlemann noticed the lights go out and heard a loud noise in the auxiliary generator. A cursory examination revealed smoke, finely divided insulation in the commutator end of the generator, a piece of metal 1/8" thick 1" wide and 2 inches long, and a piece of steel wire about three inches long and 1/4" in diameter in the bottom after end of the generator.

ENCL "A20"

— page 82 —
5 July 1944.

JONFIDENTIAL
Subject: Report of Third War Patrol.

The starboard half of the collier was slid aft to permit further inspection of the coupling and of the armature. The examination of the coupling end showed that the fan was broken and the baffle was bent and distorted. The banding wires on the armature were broken, and several armature coils were cut in half by the wire.

It is believed that the banding wire gave way, cutting the coils and short circuiting the armature, damaging the fan and field coils. However, the extent of the damage cannot be determined until the armature has been removed from the generator.

(L) RADIO
Performance of all radio equipment was excellent.

Difficulty was experienced in receiving the HAIKU Fox Schedules between the hours of 1630 to 1930 Zebra because of fading, especially in close proximity of large land masses.

(M) RADAR
The performance of the "SJ" Radar was good after a number of the bugs were cleared. On two nights the SJ was out of commission.

The SD Radar performance was, in general, worthless. Only one aircraft contact was made on the SD and that only when the plane was approximately overhead. Part of this poor performance was experienced because all planes encountered came in low over the water and generally on the bow or quarter bearings.

DNL "A21"

— page 83 —
5 July 1944.

CONFIDENTIAL
Sub ject: Report of Third War Patrol.

In accordance with instructions the frequency of the SD was shifted at Midway, but because of poor performance, the frequency was shifted back to the original frequency. Difficulty was still experienced in picking up planes.

On 15 May the Sd radar was out of commission because of an open coil L(I)1 in the plate circuit of V13 bias generator, and a short circuit in the modulation network. The coil was repaired and the modulator network was replaced from on board spare parts.

On 5 June a short circuit conductor condenser C22B and an increase of resistor in R-35 and R-57 in the bias regulator network of the transmitter receiver were discovered when the radar failed to operate properly. These were replaced and normal operation resumed.

(N) SOUND GEAR AND SOUND CONDUCTIONS

Performance of all sound equipment was excellent. Sound conditions in the area were good. The average sound range was approximately 14000 yards. Several times screws were heard on sound gear, particularly the "JP", before sight contact was made. Reef noises were heard while in the vicinity of islands in the area.

(O) DENSITY LAYERS

2352 (I) 26 May 1944, Lat 7-50 N Long 134-56 E. Line vertical to 125 feet at 860F.

0905 (I) 30 May 1944, Lat 5-00 N Long 135-00 E. Line vertical to 155 feet at 839F. At 155 feet temperature dropped to 820F. The line was then vertical to 2600 at 820F then diagonal to 810F at 300 feet.

ENCL "A22"

— page 84 —
5 July 1944.

Subject: Report of Third War Patrol.

1147 (I) 31 Lay 1944, Lat 5-39 N Long 135-08 E. Line vertical at 83°F to 200 feet then diagonal to 81°F at 300 feet.

1053 (I) 6 June 1944, Lat 7-42 N Long 134-10 E. Line diagonal from 80.50°F to 79.50°F at 200 feet.

0700 (I) 10 June 1944, Lat 7-35 N Long 133-55 E. Line vertical at 84°F to 120 feet.

0612 (I) 18 June 1944, Lat 13-50 N Long 133-05E. Line vertical at 85°F to 180 feet then diagonal to 83°F at 208 feet.

2056 (I) 19 June 1944, Lat 9-52 N Long 131-54 E. Line vertical at 84°F to 165 feet.

319 (I) 22 June 1944, Lat 9-01 N Long 132-21 E. Line vertical at 84°F to 95 feet.

(P) HEALTH, FOOD AND HABITABILITY

Health during the period of this patrol was exceptionally good, no sickness or disease was encountered. On 31 May 1944, while loading torpedoes in the Forward Torpedo Room, /USON, Donald L., 662 72 98, TL2c, V-6, USNR (SS) suffered a possible fracture or serious sprain to his left foot. On 20 June, while going through a watertight door, /MTCHALL, Hamilton C., 356 14 18, GHC, USN (SS) twisted his left wrist causing a possible dislocation of the pisiform, carpal group. Both of those patients were treated by the Pharmacist's Kate who made immovable the injured parts.

The food on the patrol was greatly improved over the previous patrol. It was invitingly and tastily prepared. The diet was varied and sufficient.

NCL "A23"

— page 85 —
5 July 1944.

CONTENT DETAILS:
Report of Third War Patrol.

HABITABILITY was excellent at all times and the vessel remained comfortably cool despite the tropical nature of the area. A great contrast between the coolness of the boat was the new booster air-conditioning unit installed in the Control Room.

(PERSONNEL)
Personnel, both officers and enlisted, performed their duties in an efficient manner. The vessel is in excellent condition because of the interest displayed by the officers and crew.

ADDITIONAL INFORMATION:
(a) Number of men on board during patrol: 73
(b) Number of men qualified at start of patrol: 49
(c) Number of men qualified at end of patrol: 60
(d) Number of men unqualified making first patrol: 17
(e) Number of men advanced in rating during patrol: 16

(R) MILES (NAV.), STABILIZED - FULL USED

Pearl to Midway 1269.5 miles 11525 gal.
Midway to Area 3029.4 " 30770 "
Area to Darwin 1600.0 " 16200 "
Darwin to Fremantle 1933.0 " 27000 "

TOTALS 15269.8 " 146395 "

(S) DURATION

Days enroute to Area: 15
Days in area: 38
Days enroute to Base: 13
Days submerged: 27

Total length of patrol: 66 days

ENCL "A24"

— page 86 —
5 July 1944.

Subject: Report of Third War Patrol.

(T) FACTORS OF ENDURANCE RATIHING

TORPEDOES FUEL PROVISIONS PERSONNEL FACTOR

24 no. 7200 gal. 14 days

Limiting factor of this patrol was fuel and operation order.

(U) REMARKS

None.

ENCL "A25"

— page 87 —
5 July 1944.

ADENDA TO PATROL REPORT - MARK 18 TORPEDOES
January 1944.

A full load of Mark 18 torpedoes were carried in the after room. Inasmuch as this vessel carried 1,284 18s on a previous patrol the torpedomen were not entirely inexperienced and no particular difficulties were encountered.

Torpedoes were charged while in the racks, no attempt being made to charge in the tubes. We set 25 points as our maximum allowable drop in gravity and worked out charging schedule accordingly. Since the gravity drop per day was less at the beginning of the patrol we charged every 8 or 9 days. Toward the end of the patrol, however, it was necessary to charge every 6 or 7 days. Two oz. of water were added to each cell after the 5th charge.

No difficulties were experienced with the hydrogen burning circuit. The current in the circuit was maintained between 4.5 and 4.7 amps. Only two nicotine wires burned out during the patrol. The hydrogen concentration of the torpedoes in the tubes was checked upon removal from the tube and never found to be more than 1%.

During the first few weeks of the patrol we had difficulty in keeping the air up to 3000/. The leaks were all found to be around the stop valve follower and the nylon gaskets in the charging valve.

The nylon gaskets presented a problem in that they expanded while the torpedoes were in the tube making it necessary to remove them before the testing gauge could be applied. Usually this resulted in damaging the washer so it was no longer useable.

— page 88 —
5 July 1944.

CONFIDENTIAL
ADMENA TO ATLANTIC RAPORT - MARK 18 TORPEDOES

One torpedo was found to have a plugged ventilation line and it was necessary to cut out about 6 inches of the line to remove the restriction.

The torpedoes were subjected to flooding on 20 occasions. They were pulled and examined immediately after the tubes were secured. One torpedo took on a small amount of water through #6 hand hole plate and it was several days before the resulting grounds were entirely cleared.

— page 89 —
15 July 1944.
Serial 0120
CONFIDENTIAL
FIRST INDORSEMENT to
U.S.S. MUSKALLUNGE Report
of Third Ver Patrol.

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

Subject: U.S.S. MUSKALLUNGE (SS262) - Report of Third
Ver Patrol.

1. The Third Var Patrol of the MUSKALLUNGE was of 66 days
duration, 36 of which were spent in the assigned area. The patrol
commenced under the operational control of Commander Task Force
SEVENTEEN and passed to Commander Task Force SEVENTY-ONE on 23 June
after a five day extension in the area had been requested and granted.
No torpedoes were fired and no damage was inflicted upon the enemy.

2. Four contacts on 3 single destroyers and 1 OCTORI class
torpedo boat were made by sound; maneuvers of these ships contacted
prevented a development into attack. In addition, 2 hostile ships
were sighted, both were properly marked; it is noted that one of the
hospital ships was to after it had apparently sighted the submarine.
On 25 June, a convoy consisting of 2 small ships approximately 3,000
and 1,000 tons respectively, along with an unidentified small escort
vessel, were sighted but inhibited to close range, provided they were
vessel, were sighted but inhibited to close range, provided they

— page 90 —
02164
FE24-71/A16-3
UNITED STATES NAVY
12a/pr
Serial: 0727
19 July 1944.

C-O-N-F-I-D-E-N-T-I-A-L
SECOND ENDORSEMENT to:
USS MUSKALLUNGE Conf. Ltr.
A16-3 Serial 010 dated
5 July, 1944. Report
of Third War Patrol.

From: The Commander Submarines, SEVENTH FLEET.
To: The Commander in Ch'if, UNITED STATES FLEET.
Via: The Commander, SEVENTH FLEET.

Subject: U.S.S. MUSKALLUNGE (SS262) - Report of Third War Patrol - Comment on.

1. MUSKALLUNGE'S Third Patrol conducted, under the operational control of Commander Submarines, Pacific Fleet, in the vicinity of PALAU was marred by scarcity of contacts in this once profitable area. The remarks of the Commander Submarine Squadron TWELVE are concurred in.

2. This patrol is designated "not successful" for the purposes of award of the Submarine Combat Insignia.

3. No damage was inflicted upon the enemy.

4. The Force Commander welcomes the Commanding Officer, Officers, and Crew of the MUSKALLUNGE to this Force confident that their determination to inflict damage on the enemy will be rewarded by opportunity for success in subsequent patrols.

P. F. STRAUB, Jr.,
Flag Secretary.

ORIGINAL COPY

DISTRIBUTION:
Cominch (3) - Direct
Vice Opnav (2) - Direct
Vice Opnav Op-23c (1)
ComlstFlt (1)
Com2ndFlt (1)
Com3rdFlt (1)
Com7thFlt (2)
ComSubs1stFlt (4)
ComSubs2ndFlt (4)

CTF-71 (4)
CTF-72 (2)
CCS-12 (1)
CSS-16 (1)
DivComRon-12 (1)
DivComRon-16 (1)
S/M School N.L. Conn. (1)
Each S/M W.A. (1)
*NOT TO BE TAKEN TO SEA - BURN

— page 91 —
8 02164
UNITED STATES FLEET COMMANDER SEVENTH FLEET
Al6-3(F-3/roj)
Serial: 02198

9 AUG1944

THIRD UNDERSIGNED to
USS MUSKALLUNGE conf. 1tr
Al6-3, Serial 010 dated
5 July 1944, Report of
Third War Patrol.

From: Commander Seventh Fleet.
To: Commander in Chief, United States Fleet.

Subject: U.S.S. MUSKALLUNGE (SS262) - Report of
Third War Patrol.

1. Forwarded.

H. W. GRAF.
Chief of Staff.

— page 93 —
0-0-0-I-D-E-I-T-I-A-I
Subject: Report of Fourth Air Patrol

(A) PROLOGUE.

This vessel returned from its 3rd war patrol on 5 July 1944. Refit was conducted by U.S.S. GRIFFIN, President, Australia. Upon completion of refit on 19 Jul 1944 e.i.ht days were allocated to training and two days to loading. During end of training period T.D.U. began operating errtically and was removed from ship and overhauled by U.S.S. GRIFFIN being reinstalled aboard ship on the 31st of July 1944.

(5) 1 August

1. August

1500(1) Deported President Eisenhower's south Gulf.
1500(2) Conducted convoy training - robotic.
2250(1) Completed convoy patrol and enroute south Gulf.

2 August

Conducted training dives; emergency drills and fire control problems.

3 August

Continued daily training schedule. Continued school for unqualified e.i.
0451(1) Sighted Dutch submarine A-14 - maneuvered to avoid.

4 August

0920(1) Loaded port side to fuel barge, south Gulf, received 14,000 gallons of fuel oil.
1530(1) Uncarry enroute crsc.

-1-

— page 94 —
1708(H) Rered 20 rounds of 4" at wreck off North West Cape.

5 August
Continued training drills, emergency drills and fire control problems.

6 August
Continued training.
1024(E) Signed aircraft (Zete) bearing 075 degrees T., distance six miles. 1ACE quick dive.
1120(E) Surfaced and resumed base course.

7 August
0600(H) Submerged South of Lembok.
1546(H) Sighted U. S. Submarine, exchanqed calls on Rader.
1914(E) Commenced transit of Lembok Straight.
2210(E) Picked up small patrol vessel SJ. 9000 yards.
2250(E) Completed transit of Lembok leaving patrol vessel astern.

8 August
0540(E) Submerged - conducting training and fire control problems. Sighted several small sailing vessels during day.

9 August
0155(E) Two white aircraft flares dropped close aboard - made quick dive.
0232(E) Surfaced.

— page 96 —
U. S. S. U.S.S. LULUGA (SS262)

G-C-N-F-I-D-E-N-T-T-I-A-L

Subject: Report of Fourth War Patrol.

---

**Subj:**
Approach. Attempted to close range on the last two ships in convoy but best we could do was to close the range to 4000 yards on the nearest ship. While making a sweep noticed that nine later escort turned and headed for us at high speed. Had been making observations at sixty feet because sea was very rough. Believing we were probably sighted at

---

**0612(5)**
went deep to avoid. Screws passed close overhead but no charges were dropped so at

---

**0631(2)**
came to periscope depth. Convoy still in sight, they had changed course to the right to 230 degrees T., evidently heading for Palawan Passage. Scoured from battle stations and commenced trailing.

---

**0935(2)**
Sighted destroyer bearing COG degrees T., distance 3200 yards coming out of a rain squall. Commenced attack Y. which was a quick setup. Targets course 175 degrees T. Speed 10 knots. Turned right for stern tube set up and at

---

**0941(H)**
commenced firing 4 torpedoes; #7, 8, 9 and 10 initial range about 1400 yards. Control party error was made in that firing was commenced before gyros were attached. As a result, the first two torpedoes were fired with incorrect gyro setting. In the resultant confusion it was believed that all torpedoes had been fired with incorrect gyros and that again we were sighted so ordered deep depth. However, going down at

---

**0943(H)**
heard one good solid torpedo explosion and shortly after 3 depth charge explosions in rapid succession. At the time I did not grasp the situation and so remained at deep depth. A check up was made and it resulted in the fact that the last two torpedoes were properly fired with the fourth one, aimed amidships, hitting the destroyer. The men on both JK and JP sound gear reported hearing the torpedo strike the target, whose screws they were definitely tracking and that after the explosion there was never again heard any screws. The depth charges must have gone off as the destroyer sank.

---

**1015(H)**
At periscope depth - search revealed nothing in sight - target was identified as a Wakatake class.

---

-4- **HULSURE (A)**

— page 98 —
0-0-N-F-I-D--N-T-I-A-I
Subject: Report of Fourth War Patrol.

19 August
Patrolling submerged on section.
0905(H) Sighted plane (Pote) bearing 210 degrees T. sighted several small fishing boats during day.

20 August
Patrolling submerged off Cape Varella. Had planned to be very close to Cape but due to radar being temporarily out and lack of stars was unable to properly fix position.
0904(R) Sighted fleet type plane (Fote) bearing 000 degrees T., distance 3 miles.
1037(R) Sighted masts of ships bearing 260 degrees T., distance 16,000 yards - course 150 degrees T. - speed 10 knots. Attempted to close range but once again we were in the wrong spot - closest range 6000 yards. Convoy composed of at least one escort, one transport and three A/Cs.
1130(R) Convoy out of sight. Considered strong possibility that convoy would anchor overnight in Caernarvon Bay so we will wait for them there to-morrow.
1930(R) Surfaced.

21 August
0555(R) submerged 5 miles off Caernarvon Bay.
0730(R) Sighted smoke and heard echo ranging in Bay.
0743(R) Sighted ship standing out of harbor course 090 degrees T., (escort).
0605(R) Sighted sea convoy of the previous day standing out of harbor with 3 escorts. Commenced approach.

Attack #2.
0852(R) Fired tubes #1, 2, 3 at leading ship AK, range 2200 yards. Course 180, speed 6 knots.
0853(R) Fired tubes #4, 5 and 6 at large transport initial range 3500 yards. Course 190, speed 8 knots. Went to 200 foot with escort headed for us.
0853(R) First torpedo explosion. 1 hit in AK.
0855(R) Three torpedo explosions about 5 seconds apart. 3 hits in AK.
0857(R) Received eight (6) depth charges very close. Commenced.

-6-

— page 99 —
0-C-I-F-I-D-S-I-T-I-A-L
Subject: Report of Fourth War Patrol.

cavsivc tactics reaching to seaward and deep water.
Searws of two escorts plainly audible but we are under a
vary nice tomperture gradient.

1049(H) Two depth charges - close.
1052(Two depth charges - close.
1053(Two depth charges - all close.
1055(H) Three depth charges. The last nine charges dropped were
real close and it is apparent they had a good contact:
continued silent running making way to seaward.

1320(H) All quiet or sound decided to take a look at periscope
depth. No sooner put up the scope when we received three
depth charges - apparently from a plane. Back to 200 feet
and silent running for the rest of the day.

1323(T) One depth charge.
1326(Two depth charges - close.
1330(E) Two depth charges. Last four were from escort whose
scorws are plainly audible.

1335(T) Four depth charges - real close.
1336(T) Four more depth charges - close.
1435(Two depth charges - not close.
1439(Two depth charges.
1557(Two depth charges.
1559(Two depth charges.
1624(H) One depth charge.
1629(Two depth charge.
1632(T) While attempting to hold boat at 300 foot without jumping
and with large up angle bottomed with rudder striking the
bottom first. Decided to stay on bottom until dark rather
than attempt to get off bottom with result. noise.

1826(Two depth charges, getting distant.
1830(T) Last of forty-nine depth charges. No apparent damage to
ship except for Jt head damaged when we bottomed.

2030(T) Surfaced - all clear, changed area.

22 August

Submerged patrol resting up after yostercays workout.

23 August

— page 100 —
23 August to 27 August
Patrolling on surface covering possible convoy routes in China Sea.

28 August
Motorized sea area.

29 August
Patrolling submerged.

30 August
Patrolling submerged off Capo Varolla - several small fishing boats sighted.
Deported area in accordance with orders from Consubstanz.
to patrol area North West of Borneo.

31 August 1 Sept.
Enroute new area on surface.

2 September
0000(H) Patrolling East of Soubi Island across assumed convoy route.
0549(E) Patrolling submerged off Soubi Island light. Sighted two small sailboats.

3 September
Patrolling on surface.

4 September
Patrolling submerged.

5 September
Patrolling submerged off Kiri, Borneo.

6 September
Patrolling submerged off Kiri, Borneo.

-8-

— page 101 —
6 September
Patrolling submerged working our way North Eastward toward Kalawan Passage.

7 September
Patrolling submerged.

8 September
Patrolling submerged off southern tip of Kalawan Island.

9 September
Patrolling submerged West of Balabac Straight.

10 September
Patrolling on surface.
2300H) Departed arc in accordance with instructions, enroute to Frenchman.

11 September
0000H) 3 min generator out of commission. (See major defectors) Patrolling submerged north of South Natocna Island enroute Frenchman.

12 September
Patrolling submerged enroute Frenchman.

13 September
0540H) Exchanged calls with U. S. Submarine West of Kalawata Island, submerged.

2030H) Connected transit for Karinata Straight.

14 September to 16 September

-9-

— page 102 —
2030(H) Explosive charges with U. S. submarine on radar.

17 September
0430(H) Commenced transit of Lookout Strait.
0530(H) Submerged in Lookout Strait.
0600(H) Completed transit of Lookout Strait taking advantage of 3 knot southerly current. Transit uneventful.

16 September
Surface enroute Mount Gully.

19 September
Surfaces enroute Mount Gully.

20 September
Enroute Exmouth Gulf.
0842(H) Hoorah Starobr.rd side to Fuel Barge, Exmouth Gulf.
1624(H) Departed Exmouth Gulf after having received 17,000 gallons of fuel oil from barge.

21 September
Enroute Fremantle.

22 September
Enroute Fremantle.

1905(H) Sighted friendly plane, contact #5.

23 September
0327(H) Sighted Ratnest Island bearing 128 degrees T.
0545(H) Exchanged calls with escort.
0900(H) Conducted sound test and ran the range.
0942(H) Hoorah starboard to U.S.S. GIFFIN, outboard of U.S.S. Gunnel.

-10-

— page 105 —
5. 1037(E) 12-16T Convoy 12,000 200'T Periscope  Closest range 6000 yards.
6. 0750(E) 11-12N Convoy 12,000 160'T 190'T 3 Aft yards 190'T 7 kts. torpedoes at AK and three at A2. One hit on AK and three hits on AP.

-13- CLOSURE (A)

— page 106 —
0-0-I-P-I-D-3-I-T-I-A-L
Subject: Report of Fourth War Patrol.

| No. | Date       | Time  | Type | Status | Course | Range | Range | Depth | Time | Notes |
|-----||-------|------|||-------|-------|-------|------|------|
| 1.  | 1024 (E)   | 13-37s| Poto| Unknown| 020°T | Sighted | Reconnaissance | 16,000 yds. |      |      |
| 2.  | 0153 (E)   | 06-20s| Unknown| Unknown| 010°T | SJDadar | Plane dropped two white flares approx. 400 yards astern. |      |      |      |
| 3.  | 0905 (E)   | 12-53s| Poto| Unknown| 015°T | Periscope | Scout for convoy. |      |      |      |
| 4.  | 0904 (E)   | 12-16s| Poto| Unknown| 010°T | Periscope | Scout for convoy. |      |      |      |
| 5.  | 1905 (H)   | 30-52s| Bomber| 1100T | Sight | Friendly plane |      |      |      |      |
|     | 9-22-44   | 114-32.5E|      | Unknown| 2 miles |      |      |      |      |      |

-14-

— page 107 —
U. S. S. U.S. LURIES (SS262)
C-C-I-F-I-D-A-I-T-I-A-I
Subject: Report of Fourth War Patrol.
(1)
U. S. S. U.S. LURIES Torpedo attack #1.  Fairol #4.
Tide - 0941 (1) 14 August 1944  Let. 13-13 Long. 120-21

TARGET DATA: DANGER INFLICTED

Description: Destroyer WARTIME CLASS (EC) 900 TONS

Ships sunk: Destroyer.

Damage was determined by one properly timed torpedo explosion and the fact that target scores were made to stop after torpedo hit. Hard three (3) depth charges shortly after torpedo hit indicating ship sank with depth charges in the rock.

Torped Draft: 62 feet. Course 175°T. Speed 9-10 kts. Range 1300 yards.

CWR SHIP DATA

Speed 3 knots. Course 270° Depth 63 feet Angle 1°C°.

Type Attack - Submerged.

-15- HISTORICAL (A)

— page 108 —
0-0-1-F-I-D-1-1-T-I-1-L
Subject: Report of Fourth War Patrol.

(U.S.S. IUSKILLING: Torpedo Attack #2. Patrol #4.
Time - 0C52 (E) 21 August 1944 Lat. 11-43 Long. 109-17S
Target: U.S.S. IUSKILLING

Description:
Convoy - Cnc lcrg passenger ship, one large cargo ship, two other cargo ships and three escorts. -Loke sighted thru periscope - visibility good.

Ships Sunk:
Passenger ship similar Tel Iuru (EU) page 11 (2087) - 10,000 tons.

Ships Probably Sunk:
Cargo ship similar Yokohama Iuru (EU) page 68 (2087) - 6000-8000 tons.

Danger determined by one timed torpedo explosion in cargo ship and three timed explosions in passenger ship. Targets scores in both cases were more by sound to stop. Forced down by escorts before torpedoes hit.

TARGET DRIFT
|    | COURSE | SPEED | RANGE |
|------||-------|-------|
| First Ship | 25     | 1000T | 8 kts. | 2200 yards |
| Second Ship | 25     | 1900T | 6 kts. | 3500 yards |

COAST DATA
|    | COURSE | DEPTH | ANGLE |
|------||-------|-------|
| First Ship | 4 kts. | 260-T & G. | 63 ft. | 1° down |
| Second Ship | 4 kts. | 267-T & G. | 63 ft. | 1° down |

Type Attack - Submerged

-16- INCLOSURE (A)

— page 110 —
0-0-0-F-I-D-0-0-0-T-I-0-0-0-L

Subject: Report of Fourth War Patrol.

(1) ATTACHED TO: 2.

Tubes Fired  #1  #2  #3  #4  #5  #6
Truck Angle 95° 95° 95° 80° 60° 80°
Gyro Angle 7 ft. 5 ft. 5 ft. 24 ft. 20 ft. 21.5 ft.
Depth Set 6 ft. 6 ft. 6 ft. 6 ft. 6 ft. 6 ft.
Power High High High High High
Hit or Miss Miss Hit Miss Hit Hit
Arrest Rate No No No No No
Mark Torpedo 23 23 23 23 23 23
Serial No. 41434 26853 49500 41292 49323 53265
Bark Amploer 6-5 6-5 6-5 6-5 6-5 6-5
Serial No. 17232 14419 17243 8606 17275 14434
Actuation Set Contact Cont. Cont. Cont. Cont. Cont. Cont.
Actuation Actual -- Contact Contact Contact Contact Contact
Bark Harness 16-1 16-1 16-1 16-1 16-1 16-1
Serial No. 16389 17430 16373 17421 599 3429
Explosive TFX TFX TFX TFX TFX TFX
Firing Interval 0 7 6 0 4 7
Type Spread Periscope " " " "
Sea Condition Mod. swell " " " "
Corvair Activity U. S. S. GRUFFITI " " " "
Remarks 1/1, 2 and 3 wore fired at Icaing ship. 3/4, 5
and 6 wore fired at second ship during same attack.

-16- INCLOSURE (4)

— page 114 —
1616's 1st patrol
Date: 30th April 1942
Subject: Patrol report

(1) Continued.

Place of the patrol: 36. The use of 1616's 1st patrol was a major event in the war. The 1st patrol was a major event in the

— page 115 —
1000 (C) 3 August 1944, Lt. Lt. 25°56' S. Long. 112°37' E.
    Isothermal to 140 feet at 70°F.

0710 (C) 5 August 1944, Lt. Lt. 17°31' S. Long. 113°51' E.
    Isothermal to 150 feet at 76°F.

1530 (C) 6 August 1944, Lt. Lt. 13°26' S. Long. 115°13' E.
    Isothermal to 120 feet at 75°F, 1°positive gradient
    from 120 feet to 140 feet, isothermal from 140 feet
    to 200 feet.

0500-1400 (H) 7 August 1944, Lt. Lt. 9°30' S. Long. 115°42' E.
    (southern extreme to L-10.5 knots, 1°positive gradient)
    Caricotrized by extreme variable negative
    gradients cut-out by salinity gradient with
    currents up to 4 knots, water at 50°cocorase
    to 50°cocorase from 70 to 140 feet.

0600 (H) 12 August 1944, Lt. Lt. 05°40' S. Long. 119°47' E.
    Isothermal to 200 feet at 81°F.

0630 (H) 14 August 1944, Lt. Lt. 13°14' N. Long. 120°20' S.
    Isothermal to 160 feet at 63°F, then decreasing
    negative gradient to 80°F, at 200 feet.

0600 (H) 17 August 1944, Lt. Lt. 10°20' S. Long. 111°32' E.
    Isothermal to 120 feet at 82°F.

1300 (H) 19 August 1944, Lt. Lt. 12°58' S. Long. 109°37' E.
    Negative gradient from 83° at 40 feet to 80° at
    100 feet.

0700-1200 (H) 21 August 1944, Lt. Lt. 11°43' N. Long. 109°16' S.
    Isothermal to 100 feet at 63°F, decreasing
    negative gradient to 80°F, at 140 feet and 76°F.
    at 150 feet isothermal from 150 feet to 170 feet
    70°F, isocoric negative gradient from 76°F.
    at 170 feet to 73°F, at 200 feet followed by dec
    creasing negative gradient from 72°F at 220 feet.
    sharp negative gradient from 72°F, at 220 feet to
    60°F, at 230 feet followed by decreasing negative
    gradient to 66°F, at 300 feet. Isothermal from

-23-

— page 116 —
C-C-I-F-I-D-E-I-T-I-I-I
Subject: Report of Fourth Air Patrol.

(c) Continue.

300 feet to the bottom at 360 feet.
Sound range at periscope center was 5000 yards
and was estimated at 3000 yards at 300 feet.
There was a southerly current up to 15 knots
and a north current.

0900 (E) 25 August 1944, 15:07' E. 109°33' S.
Isothermal to 60 feet at 60°F, followed by
sharp negative current to 15 feet. 150 feet.
Isothermal from 100 feet to 130 feet.

1500 (E) 29 August 1944, 15:00' E. 109°45' S.
Constant negative current of 7°C per 100 feet
from 60°F, at 60 feet to 60°F, at 140 feet.

0700 (E) 30 August 1944, 12:56' E. 109°35' S.
Constant negative current from 63°F, at 50 feet,
to 73°F. at 150 feet.

(2)  HALT, GOOD AND SAFE, SILENT.

Hostile cruising this patrol was occultant, no sick-
ness or sickness was encountered.
Occult 4th at south to sea were transferred to
SousubDiv. 122 as follows:
    |

— page 120 —
5-12/116-3/FB-121 SUBMARINE SQUADRON TELIVE
Serial C246
Care of Fleet Post Office,
San Francisco, California,
30 September 1944.

From: The Commander Submarine Squadron TELIVE.
To: The Commander in Chief, United States Fleet.
Via: (1) The Commander Submarines, SWEDISH FLOT.
(2) The Commander Submarines, SWEDISH FLOT.

Subject: T.S.S. IUSKALIUNG (SS262) - Report of Fourth War Patrol.

1. The fourth war patrol of IUSKALIUNG was of fifth-four days duration and was seen in the SOUTH CHINA SEA.

2. Area coverage was good but contacts were few and only two could be recorded into torpedo attacks.

3. The first attack was made after a quick set-up on a TAKAHAGU class destroyer emerging from a rain squall. Crews were not correctly notched on the first torpedo but on the second the destroyer's sensors stopped. Let's observation revealed a source of the target.

4. The second attack was made on a convoy of four ships with three escorts that had been tracked into CHINA BAY the previous day. Lying in wait, IUSKALIUNG was recalled with an attack on an AP, one timed hit being made on the former and three on the latter. Observation was precluded by strenuous counter measures which lasted for nine hours.

5. Material: Except for the main generator counter, trouble, the material condition is excellent. The shiploads force has been corrected for discovery in the course of the breakout brushes, thereby avoiding contact with the enemy. This is the fifth Allied-Chinese contact in this squadron to show the sense of the enemy. The enemy is very secretive, and rings are being tightened on all communications, and cuts will be taken in place as required. All vessels, except Ilori, and the enemy will be removed.

6. The Squadron Commander congratulates the Commander in Chief, Officers, and crew for the change inflicted on the enemy.

J.B. CHICAGO, J.

10 04357

— page 121 —
12a/pr
10 October 1944.
Serial 0154
0-0-N-F-I-D-E-N-T-I-A-L
SECOND ENDORSEMENT to:
USS MUSKALLUNGE Conf. Ltr.
Al6-3 serial 0-11 dated
23 September, 1944. Report
of Fourth 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. MUSKALLUNGE (SS262) - Report of Fourth War Patrol - Comment on.

1. The Fourth War Patrol of MUSKALLUNGE was conducted in the SOUTH CHINA SEA off CAPE VARELIA and off the Northwest Coast of BORNEO.

2. In MINDORO STRAIT enroute to the area MUSKALLUNGE was unable to close a convoy leaving PALUAN BAY. While trailing submerged, a destroyer following the convoy was sighted coming out of a rain squall at 3200 yards range. A quick set-up was obtained and four torpedoes fired six minutes after the first sighting. One hit sank the destroyer.

3. The other contact worthy of torpedo fire was a southbound convoy sighted in the forenoon while submerged off CAPE VARELIA. MUSKALLUNGE was unable to gain an attack position but regained contact the next morning when the convoy left its overnight anchorage in CAMRANH BAY. A well executed submerged attack was made about five miles from the entrance to the bay in water of forty fathoms. Six torpedoes from the bow tubes were divided between a large AK and a large AP. An attacking escort prevented observation of results, but while going deep four torpedo explosions were heard which were properly timed for one hit in the AK and three in the AP. The score and prolonged depth charging that followed indicated that heavy damage was probably inflicted. Unfortunately there is not sufficient evidence to assess these ships as sunk.

4. The "information given by the Commanding Officer on the route used by the convoy in its sortie from CAMRANH BAY is of particular interest. The convoy was formed in a single column, and hugged the coast of TACNE ISLAND, passing within one quarter miles of PAYNOM POINT. This indicates that the GRAND PASSAGE between TACNE and HON GHUT ISLANDS is probably mined except for a swept channel.

-1- 10 04357

— page 122 —
1 - DD (WAKATAKE Class - EC) 800 Tons (Attack No. 1)
DAMAGED
1 - AK (Large - EU) 7,500 Tons (Attack No. 2)
1 - AP (Large - EU) 10,000 Tons (Attack No. 2)

TOTAL 17,500 Tons

GRAND TOTAL 15,500 Tons

R. V. CHRISTIE.

DISTRIBUTION:
Gorlitz (3) - Direct 3TG-71.3 (2)
Vice Oran (2) - Direct 3TG-71.4 (2)
Vice Oran 0p-23o (1) - CTG-71.5 (2)
Conisella (1) - DiTomsSubRon-12 (1)
Conradiff (1) - DiTomsSubRon-16 (1)
Comfort (2) - DiTomsSubRon-13 (1)
ConsubSubRT (30) - S/M Sohcol H.I. Oran. (2)
ConsubAndLit (1) - Subal, Naze Island (2)
OTr-11 (1) - S/M Sohcol H.I. Oran. (1)
OTr-12 (2) - S/M Sohcol H.I. Oran. (2)

THIS REPORT WILL BE DESTROYED PRIOR TO ENTRY INTO ENEMY CONTROLLED WATERS.

P. F. STRAUB, Jr.,
Flag Secretary.

— page 123 —
13925
Serial 62689
10 01357
24 OCT 1944
CONFIDENTIAL
THIRD ENDORSEMENT to:
CO, U.S.S. MUSKALLUNGE
(SS262) Conf. Itr. Al6-3
serial 0-11 of 23 Sept.
1944.
From:
Commander Seventh Fleet.
To:
Commander in Chief, United States Fleet.
Subject:
U.S.S. MUSKALLUNGE (SS262) - Report of Fourth
War Patrol.
1. Forwarded.
2. H. LONG,
By directior

— page 125 —
19 October (8)
1300 Underway for 1st patrol in company with H.M.S. DUBBO.
1600 Conducted day approaches.
1900 Conducted night approaches.
2230 Released escort. Underway to Darwin, zig-zagging with constant helm using three main engines in daytime and two at night. Periscope manned.

-1-

— page 126 —
0150
1725
: 20 October (-8)
: 21 October (-8)
: 22 October (-8)
: 23 October (-8)
: 24 October (-8)
: 2140
: 25 October (-8)
: 1330
: 1519
: 26 October (-8)
: 0450
: 0748

U. S. S. HUSKILLUNG
20 October (-8)
: 21 October (-8)
: 22 October (-8)
: 23 October (-8)
: 24 October (-8)
: 1340
: 25 October (-8)
: 1330
: 1519
: 26 October (-8)
: 0450
: 0748

-2-

— page 127 —
26 October (-8) cont'd.
0855    : 26 October (-8) cont'd.
1430    : 26 October (-8) cont'd.
1535    : 26 October (-8) cont'd.
2036    : 26 October (-8) cont'd.
2055    : 26 October (-8) cont'd.

: 23 October (-8)
0545    : 23 October (-8) cont'd.
0625    : 23 October (-8) cont'd.
1425    : 23 October (-8) cont'd.
1727    : 23 October (-8) cont'd.
1757    : 23 October (-8) cont'd.
1803    : 23 October (-8) cont'd.
1900    : 23 October (-8) cont'd.
2052    : 23 October (-8) cont'd.
2300    : 23 October (-8) cont'd.

: 29 October (-8)
0015    : 29 October (-8) cont'd.
0304    : 29 October (-8) cont'd.
0306    : 29 October (-8) cont'd.
1816    : 29 October (-8) cont'd.
1930    : 29 October (-8) cont'd.
2015    : 29 October (-8) cont'd.

: 29 October (-8)
0015    : 29 October (-8) cont'd.
0304    : 29 October (-8) cont'd.
0306    : 29 October (-8) cont'd.
1816    : 29 October (-8) cont'd.
1930    : 29 October (-8) cont'd.
2015    : 29 October (-8) cont'd.

— page 128 —
30 October (8)
: 0442 0520
: 1550
: 1600
: 2052
: 2201

: 31 October (6)
: 0500 0545 1211
: 1600 1609 1830 2050
: 0524 1101 1140 1749 1807

: 1 November (3)
: 0524 1101 1140 1749 1807

: 2 November (8)
: 0030 0000

— page 130 —
0505 5J picked up Cuyo Island bearing 350 degrees T., distance 60,000 yards.
: 0623 SD radar contact 16 miles, closed to 12 miles. (Plane contact #10) Div'd. Due to proximity of air fields, remained submerged.
: 1610 surfaced.
: 1619 SD radar contact & sight contact 12 miles, closed to 8 miles. Div'd. (Plane contact #11)
: 1742 Surfaed.
: 2330 Commenced transit of lindoro Straits.
: 2335 Sighted plane bearing 296 degrees T.; distance 5 miles. Div'd. (Plane contact #12) Could be seen through binoculars very plainly on this bright moonlight night.

5 November (-6)

: 0055 Surfaed.
: 0300 Completed transit of lindoro Straits.
: 0413 SD radar interference bearing 350 degrees T. exchanged recognition signals and calls with U. S. Submarine.
: 0525 SD radar contact 6 miles. (Plane contact #13) Div'd.
: 0735 Surfaed. Proceeding to newly assigned area, having received despatch this A.F. from CTF 71.
: 1735 Made trim dive.
: 1755 surfaced.

6 November (-6)

: 0602 Made trim dive.
: 0631 Surfaed.
: 0650 SD radar contact 8 miles. (Plane contact #14) Div'd.
: 0745 Surfaed.
: 1700 Entered area, patrolling North and South line.
: 1742 Made trim dive.
: 1810 surfaced.
: 1845 Converted No 4 Fuel Ballast tank to Main Ballast tank, flushing tank several times.

— page 131 —
7 November (-8)
0539 Made trim dive.
0621 Surfaced.
0703 SD radar contact 26 miles. (Flame contact #15)
Did not dive.
2300 Patrolling Northeast and Southwest line.

: 8 November (-8)
0540 Made trim dive.
0625 Surfaced.
1738 Made trim dive.
1753 Surfaced.
2300 SD radar contact 20 miles. (Flame contact #14)
Did not dive.

: 9 November (-8)
0551 Made trim dive.
0634 Surfaced.
0640 Started patrolling North-South line. The wind had picked up and the sea was very rough. Fifteen feet waves caused the bridge to be very wet.
2108 SD radar contact, 10 miles, closed to 12 miles quickly. Dived. (Flame contact #17)
2225 Surfaced.

: 10 November (-8)
1240 SD radar contact 7 miles. Dived. (Flame contact #18)
Weather is still overcast and seas high.
1920 Sound thought they might have contact. Put bow in direction of noise level and slowed to one-third. Identified as school of fish. Resumed patrol.

: 11 November (-8)
0350 Flicked up interference on 8T radar bearing 100 degrees T. Tried challenging with 8T key but

— page 132 —
11 November (-8) cont'd.
evidently was too far away. Radar Technician
said it was one of our submarines.
Lost radar interference bearing 130 degrees T.
Radar trim dive. The seas were still mountainous
and as we had to routins torpedoes, decided to
stay down for a couple of hours.
surfaced.

: 12 November (-8).
Storted patrolling NW-SW line.
Made trim dive.
surfaced. Weather has abated so that surface
running is more on the comfortable side. The
skies are overcast but visibility around the
horizon is good.
SD radar contact 6 miles. (Flare contact #19)
Divcd.
Surfaced.
While checking fuses on power panel of S.J motor
generator, HARRISON, L. F., #562-94-23, MTG, USNR and LYONS, H. J., #308-55-06, MTG, USNR and LYONS, H. J., #308-55

— page 134 —
15 November (-3) contact (23)
Sky is completely overcast with intermittent rain squalls and heavy seas.

19 November (-3)
0045 5D radar contact 22 miles. Did not dive.
(Plane contact 24)
0400 5D radar out of commission.
0547 1/2c tire dive.
0640 Surface, enroute area on two main engines.
Sky is partially overcast, seas high.
1300 5D radar back in commission.
2000 Entered Area.
2347 5D radar contact bearing 120 degrees T., distance 23,000 yards. Commenced tracking on four main engines. Course determined to be 230 degrees T., speed 16 knots. (Ship contact 2)

20 November (-3)
Closcd to 13,000 yards to determine number of ships. There were three Harus and at least five escorts. The targets were in column, a large one in the middle with two medians, and a and astern. The escorts were in a circular disposition about the target at a range of 2700 yards, four of them being on the starboard side. The angle on the bow was 095 degrees starboard.
0025 Began and around target course 235 degrees T., speed 16 knots.
0300 Sent out contact report to CTF 71.
0320 With angle on the bow 40 degrees starboard came left and headed for targets, slowing to 10 knots.
0325 With disposition of escorts, could not get in to targets so decided to fire on escorts. Hade ready the tubes. Two escorts in sight at 5800 yards, almost overlapping.
0327 With torpedo run of 3600 yards, 90 degrees star-

— page 135 —
20 November (-8) cont'd.

board track commenced firing bow tubes with
1 degree divergent spread, depth set at six feet.

0326 Swung left and put stern to escort.
0341 Escort started sinking with a purple light
and started swinging toward us. Increased
speed to full power, range on nearest escort
3600 yards. This escort looked like a Chiidari.
For a period of eight minutes we were holding
our own and then the range slowly began to open
out. It is believed that the torpedoes under-
ran the target. Due to the heavy seas it was
felt that the setting of torpedoes below 6 feet
would cause erratic runs.

0344 Three explosions or depth charges.
0353 Escort abandoned chase and proceeded in direction
of convoy. The convoy by this time was sixteen
miles away and with our one and one half knot
speed differential, advanced chase.

0550 Submerged to reload and routine torpedoes.
1146 Surface, heading for rendezvous with Gunnel.

21 November (-8)

0538 Made tri dive.
0627 Surface.
1625 SD radar contact, 10 miles. (Plane contact #25)
1747 Surface.
2335 Contacted U. S. C. Gunnel and received instruc-
tions for patrol. We are to patrol east-west
line North of Dangerous Ground route.

22 November (-8)

0553 Submerged. Skies are completely overcast and
visibility low. There are many rain squalls.
1738 Surface - patrolling East-west line North of
dangerous Ground route.
1915 Exchanged recognition signals with U. S. submarine.

— page 136 —
23 November (-8)
0545:  Submerged. The sky is completely overcast with clouds at 500 - 1000 feet.
1751:  Surface.

: 24 November (-8)
0100:  Received despatch ordering us to Eastern half of area now shared with U. S. Gunnel.
0548:  Submerged. The weather is still squally.
1804:  Surface.

: 25 November (-8)
0545:  Submerged for trim.
0635:  Surface.

: 26 November (-8)
0538:  Submerged for trim.
0642:  Surface.
1037:  No. 1 min generator out of commission for remainder of patrol. (See major defects.)
1133:  Sighted empty cork life jacket.
1513:  SD radar contact, 12 miles, closed to 10 miles, dive. (Flame contact #26)
1755:  Make complete inspection of #1 generator.
1816:  Surface.
    Sent despatch informing OFF 71 of generator
    casualty and condition of numbers three and
    four generators.

: 27 November (-8)
0050:  Received despatch informing us to proceed to
    Pearl Harbor.
0543:  Submerged for trim.
0632:  Surface.
0645:  SD radar contact, 10 miles. Also seen by
    Executive officer approaching from the stern.
    Dive. (Flame contact #27)

-12-

— page 137 —
27 Nov./26 Nov. (6) cont'c.
0804  |  surfacecc.
1332  |  SD radar contact 14 miles, closed to 11.iles, clivcd. (Plane contact #26)
1429  |  surfacecc.

28 Nov./28 Nov. (6)
0300  |  Flicked up 3J.radar.interface bearing 140 degrees T. advanced recognition signals but were unable to exchange calls.
0400  |  Triac to report in to CTF 17, but unable to establish communication.
0546  |  Submerged for trim.
0631  |  surfacecc.
1359  |  SD radar contact, 12 and 14 miles, clivcd. (Plane contact #29)
1515  |  surfacecc.
1521  |  SD radar contact, 14.iles, clivcd. (Plane contact #30)
1731  |  surf.occ.
1900  |  Sent Buskallingen serial one to CTF 17. Proceeding to Balingang Channel awaiting routing instructions from CTF 17.

29 Nov./29 Nov. (6)
0526  |  submerged North of Balingang Island as we had instructions not to go East of this position without routing instructions.
1800  |  surfacecc.
2000  |  Received deepest giving instructions.

30 Nov./30 Nov. (6)
0230  |  SJ radar interference - exchanged recognition signals and exchanged calls with U. S. submarine.
0540  |  Made trim clivc.
0559  |  surfacecc.
1049  |  SD radar contact 14 miles, clos.ng. Divsd. (Plane contact #31)
1149  |  surfacecc.
1700  |  Converted #3 and #5 F.B.T. intc K.B.T.'s.

-13-

— page 138 —
30 November (-8) cont'd.
2000 Shifted clocks ahead one hour to -9 zone time.

1 December (-9)
0616 Made trim dive.
0640 Surfaced.

2 December (-9)
0557 Made trim dive.
0613 Surfaced.
0654 SD radar contact, 12 miles. Div'd. (Plane contact #32)
0730 Surfaced.
1000 SD radar contact, 14 miles. Lost it at 15 miles. Did not dive. (Plane contact #33)

3 December (-10)
0000 Set clocks ahead one hour to -10 zone time.
0303 SD radar contact, 20 miles. Lost it at 23 miles. Did not dive. (Plane contact #34)
0610 SD radar contact, 22 miles. Did not dive. (Plane contact #35)
0643 Made trim dive.
0717 Surfaced.
1042 SD radar contact, 22 miles. Lost at 24 miles. Did not dive. (Plane contact #36)
1450 SD radar contact, 16 miles. Lost at 22 miles. Did not dive. (Plane contact #37)
1515 SD radar contact, 14 miles. Picked up the plane from the bridge and saw him disappear. Looked like a landbased bomber, probably a Liberator or Flying Fortress. Did not dive. (Plane contact #38)
Yesterday and today we have been on the plane route from Japan to Bonnin Islands. Air traffic is quite heavy.

— page 139 —
1902 SD radar contact 16 miles, closed to 6 miles, dived. (Flame contact #39)
: 2005 Surfaced.
: 2007 SD radar contact 14 miles, steady.
: 2030 Closed to 7 miles, dived. (Plane contact #40)
: 2205 surfaced, all clear.

4 December (-10)
Enroute Highway Island.

5 December (-10)
0554 Made trim dive.
0615 surfaced.

6 December (-11)
0642 Made trim dive.
0703 Surfaced.
0800 Set clocks ahead one hour to -11 zone time.
1920 Number two main engine cut of commission.

7 December (-11)
0617 Made trim dive.
0635 Surfaced.
0705 Number two main engine back in commission.

8 December (-11)
0628 Made trim dive.
0643 Surfaced.
2000 Set clocks ahead one hour to -12 zone time.

9 December (-12)
0649 Made trim dive.
0724 Surfaced.
Received CTG 17.5 despatched regarding STA and rendezvous.

— page 140 —
9 December (-12) cont'd.
2400 Set calendar back one day.

: 2 December (+12)
0620 Late tri. civ.
0712 surfaced.

: 10 December (+12)
0611 Sighted island. Islands bearing 070 degrees T., distance 17 miles.
0611 Loored lightway. Fueled and provisioned ship.
1400 Underway for Pearl.

11-13 December (+11+10)
Abrupt Pearl.

14 December (+9+)
Let escort and in convoy proceed to Pearl.
Loored Submarine Base Pearl.

— page 141 —
2050 H 10/31/44 118-42 E
: 2347 H 11/19/44 116-09 E
: 13-36 N 15/09/44 116-09 E
: 3 N 5 Escorts
: 23,000 yards
: 23,000 yards
: 16 knots
: 16

— page 142 —
1 2 3 4 5
Date 10/25/44 10/28/44 10/26/44 10/29/44
Time (Zone) 0545 1425 1757 2300 0304
S S S S S
Position, Lat.10-56 09-25 09-16 08-31 07-54
B S B S B
Long. 120-46 128-00 127-57 127-36 127-25
Speed 13 13 13 13 13
Course 334 334 334 334 320
SUR SUR SUR SUR SUR
Trin L.T. L.T. L.T. L.T. L.T.
Minutes Since
Last Radar Search 0 0 0 0 0
Number 1 1 1 1 1
Type UNK UNK UNK UNK UNK
Probable Trans Trans Pat. Pat.
Mission
How Contacted S.D. S.D. S.D. S.D. S.D.
14 8 2 5 6-5
Initial Range Miles Miles Miles Miles Miles
Elevation Angle UNK UNK UNK UNK UNK
Range & Relative
Bearing of Plane I.D. N.D. I.D. I.D. I.D.
...on It Detected
submarine

(state/sea)
(boat)
(aircraft

— page 143 —
6 7 8 9 10
Date 10/30/44 11/2/44 11/3/44 11/4/44
Time (Zone) 2052 0712 2115 1650 0023
    (-5) (-5) (-5) (-5) (-5)
70-40 01-46 04-40 00-00 10-40.5
Position List. S N K N K
Long. 121-31.5 119-43 119-45 120-40 121-18
Speed 13 14 14 14 14
Course 270 000 000 025 030
    U.S. SUR SUR SUR SUR
Tri. I.T. L.T. L.T. L.T.
Minutes since
Last radar
Search 0 0 0 0 0
Number 1 1 1 2 1
Type UNK UNK U.I. N.H.S.(2) U.K.
A
I
A

— page 144 —
11 12 13 14 15
Date: 11/4/44 11/4/44 11/5/44 11/6/44 11/7/44
Time (zone): 1519 2335 0525 0650 0705
    (-0) (-0) (-0) (-0) (-0)
    (11-01 12-19 13-01 15-54 17-35)
Position Lat. N N N N N
121-27 120-40 119-40 115-56 115-45
Long. 12 13 13 12 12
Speed 12 13 13 12 12
Course 000 318 290 310 000
Trim 5Uts 5Urs 5Urs 5Urs 5Urs
In. 1 1 1 1 1
Trin 1 1 1 1 1
Probable 1 1 1 1 1
Mission Trans Trans Trans Trans
Bight 1 1 1 1 1
How Contacted 1 1 1 1 1
Initial Range Miles Miles Miles Miles Miles
Levetion at le 450 250 0 0 0
Range & relative
bearing of Plane i.D. H.D. H.D. H.D. H.D.
When it Detected
submarine

State (Deau- 3
sea 1 4 1 3 3
Direction 010 000 010 000 030
Tel. 010 000 010 000 030
Visibility (miles) 8 5 5 9 9
10,000 5,000 5,000 5,000 5,000
(neight to to to to to
Clouds: in ft.15,000 15,000 15,000 15,000 15,000
(Percent
(vercast 1 3 2 3 5
(Bearing 1 1 1 1 1
Icon (angle 1 1 1 1 1
(Percent 1 1 1 1 1
Illum 1 1 1 1 1

Type of d./. Camouflage on this patrol. LIGHT GRAY
-20-

— page 146 —
21 22 23 24 25
Date 11/14/14 11/15/14 11/16/14 11/19/14 11/21/14
   1420 2130 1910 0045 1025
Time(zone) (-) (-) (-) (-) (-)
Position Let. 17-47 17-50 17-49 17-45 14-08
    Long. 117-23 113-00 114-09 114-22 116-56
Speed 10 10 12 12 5
Course 160 270 090 135 220
Trim 0 0 0 0 0
Minutes since Last Radar 0 0 0 0 0
Search 1 1 1 1 1
Number 1 1 1 1 1
Type 1 1 1 1 1
Frobbable 1 1 1 1 1
Mission 1 1 1 1 1
Train 1 1 1 1 1
Trans 1 1 1 1 1
Train 1 1 1 1

— page 147 —
26 27 28 29 30
Date: 11/27/44 11/28/44 11/30/44 12/2/44
Time (Zone): 1513 0645 1332 1529 1521
Position Lat. 13-43 13-51 14-56 19-28 19-30
Long. 117-46 117-37 117-20 119-32 119-36
Speed 7 13 13 13 13
Course 100 345 345 060 060
Thin SUR UTR SUR SUR SUR
Minutes since
Last Radar
Secchi 0 0 0 0 0
Number 1 1 1 1 1
Type UTR SUR UTR UTR UTR
Probable
Mission Trans. Pat. Trans. Trans. Trans.
R
sight
R
H
on Contacted 12 10 14 12-14 14
Range & Relative
Be. Ring of Plane
Mean it Detected D. D. D. D. D.
Submarine
State (Beau
sea: fort 2 2 3 3 3
Direction 075 075 075 075
Rel 070 020 075 075
Visibility (miles) 9 5 9 9 9
5,000 5,000 5,000 5,000 5,000
(Height to to to to to
Clouds: in feet) 15,000 15,000 15,000 15,000
(Exhaust
overcast 3 3 3 3 3
(Be. Ring Helley Day Day Day Day
Loon: (mile Day Day Day Day
(ercent Day Day Day Day
Illum
Type of S/C: Camouflage on this patrol LIGHT-CRAY

-23-

— page 148 —
31 32 33 34 35
Date 11/30/44 12/2/44 12/3/44 12/3/44 12/3/44
Time (zone) 1049 0654 1000 0303 1042
- (-9) (-9) (-9) (-9) (-9)
20-35 21-48 21-51 22-05 22-05
Position Lat. 1
N 136-50 137-26 141-37 142-10
Long. 3 3 3 3 3
Speed 14 13.5 13.5 13.5 13.5
Course 005 005 035 050 090
Tri 0 0 0 0 0
Minutes since
Last radar
search 0 0 0 0 0
Number 1 1 1 1 1
Type U.S. U.S. U.S. U.S. U.S.
Probable
mission Trans. Trans. Est. Est. Est. Est.
How Contacted 14 14 20 22
Initial Range miles miles miles miles
Elevation Altitude U.N. U.N. U.N. U.N.
Range Relative
Bearing of line
from it located D. D. D. D. D.
Submarine

(C) 1942-1945

CO DISPATCHES

(C) 1942-1945

— page 149 —
36. 37. 38. 39. 40.
Date: 12/3/44 12/3/44 12/3/44 12/3/44 12/3/44
Time (zone) -10 -10 -10 -10 -10
Position lat. 22-05 22-05 22-05 22-12 22-14
Long. 143-08 144-07 144-28 145-00 145-06
Speed 13.5 13.5 13.5 13.5 13.5
Course 090 090 090 075 000
Trim 0.0 0.0 0.0 0.0 0.0
Minutes since Last Radar
ocean 0 0 0 0 0
Tuber 1 1 1 1 1
Type 1.0 1.0 1.0 1.0 1.0
I. Tobable
I. lission 1.0 1.0 1.0 1.0 1.0
No. Contacted 24 12 14 20-0 11-9
I. itial Range miles miles miles miles miles
Elevation 45° 45° 45° 45° 45°
Range & relative
Bearing of lane
men it detected
submarines 1.0 1.0 1.0 1.0 1.0
(rotate/Beau-
sea: 1.0 1.0 1.0 1.0 1.0
(Direction)
rel.110 110 110 110 110
Visibility (iles) 9 9 7 5 4
(neight 10,000-10,000 10,000 10,000 10,000 10,000
Clouds: in feet 20,000-20,000 20,000 20,000 20,000 20,000
(percent)
overcast 5 4 3 2 2
(clearin' relay Day Day Day Night
noon (in.le Day Day Day Night
(percent) Day Day Night
Illum
Type of 2.0.

— page 150 —
U. S. S. HUSKALUNG (SS262)  TORPEDO ATTACK #1 PATROL #5
TLS 2347 (-8)  DATE 11/19/44  Lat. 13-36 N  Long. 116-09 E

TARGET DATA - DATABASE INITIATED

Description: There were three unidentified ships in column with at least five escorts arranged in a circular disposition about the targets. One was ahead, another bearing 60 - 70 relative, another at 100 relative and one estern. The radius of the disposition was 3000 yards. There was at least another on the port side of the convoy. Radar contact was made at 23,000 yards. Target fired on was a Cindori torpedo boat on starboard beam of convoy. Visibility was 6000 yards.

Ship Sunk: None.

Damage Determined by: No damage.

Target Draft 7 feet 230  Speed 16 knots  Range 3600 yards

OW/ SHIP DATA

Speed - 10 knots  Course - 100°  Depth - surface

FIRST CONTROL and TORPEDO DATA

Type Attack: HIGHT RADAR ATTACK.
The convoy was tracked at 13000 yards until the base course and speed were determined. Due to the type screen employed by escorts it was determined to fire at one of the escorts, a Cindori torpedo boat. Air torpedoes were fired from the bow tubes with a 1° divergent spread, and seen to run hot, straight and normal but missed due to shallow craft of target.

-26-

— page 151 —
U. S. S. JUNKILLINGE
(H) ATTACK DATA
cont'd.

Tubes Fired - ft     ft2     ft3     ft4     ft5     ft6
Tr. No. 20 S    90 S    89 S    91 S    95 S    95 S
Gyro No. 40 R    40 R    39 R    41 R    45 R    45 R
Depth Sct    6'     6'     6'     6'     6'     6'     6'

Power

Hit-Kiss    Miss    Miss    Miss    Miss    Miss    Miss
Erratic    No     No     No     No     No     No
Type    Torpedoes    23    23    23    23    23    23
Serial No. 50252    41591    40441    41490    42920    61908
LK No. 26364    26443    26336    26360    26309    26365
Actuation
Actual    "    "    "    "    "    "    "
LK Carhead 16-1    16-1    16-1    16-1    16-1    16-1
Serial No. 17477    13165    16393    12392    16340    17290
Explosive Torpedo Torpedo Torpedo Torpedo Torpedo Torpedo
Firing Int. 6 sec. 8 sec. 8 sec. 8 sec. 8 sec. 8 sec.
Type Spread 10 Div. 10 Div. 10 Div. 10 Div. 10 Div. 10 Div.
Sea Conditions Rough Rough Rough Rough Rough Rough
Overhaul U. S. S. Sane Sane Sane Sane Sane
Activity GRIFFIN Sane Sane Sane Sane Sane Sane

-27-

— page 159 —
1944
U. S. S. MUKILTUC
(0) B. KITTERICK DATA

Carcs taken in late October 1944 enroute from Port to Darwin were nearly Isoballast to 300' with exception of one in position 12030'S - 12720'S which was Isoballast to 100' followed by a negative gradient of 10' per 10' to deepest depth of 150 feet.

Water from Darwin to Lakassar Strait is early November and a slight uniform negative gradient to 150 feet.

On 16 November in south China Sea off Hainan Island in position 18004'N - 111058'E water was Isothermal & 80' to 130' followed by a very sharp negative gradient to 740' & 160', 700' & 200' and 620' & 300'.

Other carcs taken in the central portion of south China Sea were Isothermal to depths of 150'.

(2) HULL FOCD AND HULLABILITY

Knots of the officers and crew during this voyage were exercised in preparation of all meals. In most cases the meat required one inch of trimming to ensure completion of construction of probable continuation, resulting in much waste.

Kevlar 12th HUKLUG, L. R., RALC, USNR and LYCKIS, H. J., RIJ3, USNR were accidentally burned and exposed to flash while checking fuses on 50' motor generator power panel. Upon examination the following objective symptoms were noted: both had excessive increased corrosion and later followed by debris of licks. Dilatation and contraction of pupils was normal in both. Object discrimination was painful, an anelastic clotment was liberally applied, constructive administered internally (oral) and rest followed. In both cases complete recovery followed in about a week.

HART, V. K., T3e, USNR suffered a serious case

-35-

— page 160 —
U. S. S. LUGLILIUS

(P) HEALTH AND HABITABILITY
Continued

of infection classified as "Cellulitis, left leg". This inflammation is precipitated the man for 11 days. Treatment consisted of hot massage, sulfate salts and later incision and drainage. Sulfathiazole therapy resorted to after incision. HART complete-ly recovered in 15 days.

(Q) PERSONNEL

(a) Number of men on board during patrol. 74
(b) Number of men qualified at start of patrol. 51
(c) Number of men qualified at end of patrol 61
(d) Number of unqualified men making their first patrol. 10
(e) Number of men advanced in rating during patrol. 3

(R) MILES STATION - WUSL U.S.S. DETROIT

| Mile | Station | Miles |
|------||-------|
| 2347 | 31,750 | 66,490 |
| 6106 | 59,575 | 59,575 |

(S) DURATION

| Duration | Miles |
||-------|
| 11 days | 32 days |
| 15 days | 9 days |

-36-

— page 161 —
1. U.S.S. JUSKILLUNG
2. Area - South China Sea, November 14, 1944.
3. Heavy radar may have been airborne or shipborne.
4. SD-2 radar and All/APR-1 radar detector.
5. 141 rad. read directly on APR-1
   b. 750 pps read directly on PRF meter
6. A. This radar was either surface search (doubtful) or airborne.
7. A steady signal was heard.
8. Interference was first noted on the screen of the SD-2 radar. The APR-1 radar detector was turned on and a search was made. The interference signal was picked up and gave a good reading on the PRF meter but no pulse pattern was obtained. Shortly after a plane was picked up on the SD-2 radar at 10 miles east of the dive, a further investigation revealed possible but not probable.

INTERCEPTION OF ENEMY RADAR TRACKS (2)
1. U.S.S. JUSKILLUNG
2. South China Sea November 15, 1944.
3. Many radar probably airborne.

— page 162 —
1. U.S.S. ILLINOIS
2. (1) 30 miles West of Perry Island. (2) Luzon Strait.
3. S. onshore on Philippine Island Group.
4. Nov. 19, 1944 (1) Nov. 28, 1944 (2)
5. (1) 12705, 8470 and 4235.
   (2) 12705, 8470 kcs.
6. Own signal was CW on above frequencies.
7. Tactical circuit.
8. Yes.
9. 1-1 to 1-2

-38-

— page 163 —
10. 150 watts
11. Unknown
12. CW Ranco Keying - Sockets second to be sending message.
13. (1) 20% (2) 100%
14. Shifted frequency (1) Cleared message on secondary frequency with loss of efficiency.
15. ---
16. Yes.
17. (1 & 2) Primary frequencies - as soon as we open up on new frequency. Secondary frequency not jammed.

18. (1) In trying to send a message to VLA from about 30 miles West of Parney Island in early evening on 12705 kcs. was used first and immediately about 3 stations opened up on exact frequency - covered us completely. On of these stations tried to work us but could not authenticate so advised. Shifted to 0470 kcs. Worked with British call sign. The message was received at the same time by HPA, message came out on VLA. Ecker with 3 groups missing. No incorrect group count.
(2) In Luzon district about 0300-0600 Hw time, on Nov.ber 28th, tried to send message to CorubusPac. Tried 1750, 0470, and 16,940 kcs. with no answer except jamming stations close by. This locality is "dead" at this time in the morning so with any jamming at all, results are almost impossible to obtain. Message was finally sent blind twice on 8470 kcs.; the best sounding frequency. No results. Message was sent in early evening of same day to Z4H with practically no interference.

(V) REMARKS

None

-39-

— page 164 —
1. The Commander Submarine Division FORTY-FORTY, San Francisco, California, 18 December 1944
To: The Commander-in-Chief, United States Fleet.
Via: (1) The Commander Submarine Squadron FOUR.
(2) The Commander Submarine Force, Pacific Fleet.
(3) The Commander-in-Chief, U.S. Pacific Fleet.

Subject: U.S.S. MUSKALLUNGE Fifth War Patrol, comments on.

1. The fifth war patrol of the U.S.S. MUSKALLUNGE was conducted in the open sea areas of the SOUTH CHINA SEAS. The patrol was made under the operational command of the Commander Task Force 71. It was of fifty-seven (57) days duration.

2. Only one contact worthy of torpedoes was made during the entire time in area. This scarcity of targets was undoubtedly due to the Allied Air and Surface activity in the Philippine Area at the time. This one contact was a convoy of three unidentified ships with at least five escorts. These five escorts formed a circular screen around the convoy. The MUSKALLUNGE made one attack on one of the screen of the convoy.

3. FIRST TORPEDO ATTACK - This was a night radar surface attack made on the night of 19-20 November. Inasmuch the action of the screen prohibited direct attack on the large ships of the convoy, the MUSKALLUNGE decided to attack one of the escorts. Six Mark XXIII torpedoes were fired at the escort from a range of 3800 yards. All torpedoes missed. The Commanding Officer believes the target was a GILDORI type escort and that the torpedoes ran under. The MUSKALLUNGE was sighted and chased by the target for a short time, but quickly returned to protect the convoy. As dawn was approaching and the speed of the target was sufficient to give the MUSKALLUNGE only a knot-and-a-half speed advantage, the convoy could not be closed for further attack.

4. The use of radar equipped planes by the enemy over the narrow Straits through which our submarines must pass in the SOUTH CHINA SEAS Area is of note.

5. This was the Tenth War Patrol for the Commanding Officer but his first in command. It is regretted the scarcity of targets in the Area made this patrol so unproductive.

6. The MUSKALLUNGE returned in good state of cleanliness and is being returned to the States for overhaul.

— page 165 —
19 December 1944.
Serial: 0572
CONFIDENTIAL
SECOND ENDORSEMENT to
U.S. MUSKALLUNGE (SS262)
Report of Fifth War Patrol.
From: The Commander Submarine Squadron FOUR.
To: The Commander-in-Chief, UNITED STATES FLEET.
Via: (1) The Commander Submarine Force, PACIFIC FLEET.
(2) The Commander-in-Chief, U.S. PACIFIC FLEET.
Subject: U.S.S. MUSKALLUNGE (SS262) - Report of Fifth War Patrol.
1. Forwarded, concurring in the remarks of Commander Submarine Division FORTY-FOUR.
2. The Commander Submarine Squadron FOUR congratulates the Commanding Officer, officers and crew of the U.S.S. MUSKALLUNGE upon completion of this patrol.
W. V. O'REGAN.

— page 166 —
12-10/416-3(15)
Serial 02921
CONFIDENTIAL
THIRD ENDORSEMENT TO
JUSSKALLUNGE Report of
Fifth War Patrol.
CONSUBSPAC PATROL REPORT NO. 619
U.S.S. IUSSKALLUNGE - FIFTH WAR PATROL.
From:
To:
Via:
Subject:
The Commander Submarine Force, Pacific Fleet.
The Commander-in-Chief, United States Fleet.
The Commander-in-Chief, U.S. Pacific Fleet.
U.S.S. IUSSKALLUNGE (SS262) - Report of Fifth War
Patrol (19 October to 14 December 1944).

The fifth war patrol of the IUSSKALLUNGE was conducted
in South China Sea Areas.

2. The IUSSKALLUNGE departed from Fremantle, patrolled
in Task Force SEVENTY-ONE Areas of the South China Sea, and returned
to Pearl Harbor upon completion of the patrol. Despite thorough area
coverage the IUSSKALLUNGE was unfortunate enough to have made only one
contact worthy of torpedo fire. Attempts to close this contact, were
which was estimated to consist of three A-1s and five escorts, were
thwarted by the escorts' tactics. An attack was delivered on two
overlapping escorts but failed, probably due to the torpedoes under-
running. A six foot depth setting was used due to heavy seas.

Award of the Submarine Combat Insignia for this pa-
trol is not authorized.

C. A. LOCKWOOD, Jr.

DISTRIBUTION:
(Complete Reports) (7)
Cominch (5)
CNO (6)
Cincpac (1)
Intal.Cen.Pac.Ocean Areas (1)
Comservpac (1)
Cinclant (8)
Comsubslant (2)
S/M School, NL (1)
CO, S/M Base, PH (2)
Consopac (1)
Consowcspac (2)
Comsubsowcspac (2)
CTG 71.9 (1)
Comnorpac (20)
Comsubspac (2)
SUBAD, 11 (3)
ComsubspacSubordcon (3)

All Squadron and Div. (2)
Commanders, Pacific (2)
Substrainpac (1)
All Submarines, Pacific (1)

E. L. HYNES, 2nd,
Flag Secretary.

— page 167 —
SS262/A16
DECLASSIFIED
I-A-L
Care of Fleet Post Office,
San Francisco, California.
2 July 1945.

From:  Commanding Officer; U.S.S. MUSKALUICE.
To:  Commander in Chief, United States Fleet.
Via:  (1) Commander Submarine Division ONE HUNDRED TWENTY TWO.
    (2) Commander Submarine Squadron TWELVE.
    (3) Commander Submarine Force, PACIFIC FLEET.
    (4) Commander in Chief, U.S. PACIFIC FLEET.

Subject:  U.S.S. MUSKALUICE, Report of War Patrol
number SIX.

Enclosures:  (A) Subject report.
    (B) Track Chart. (ComSubFac only).

1. Enclosure (A), covering the SIXTH war patrol of this vessel conducted in the EAST CHINA SEA and FORCESSAATIAR areas during the period 10 May to 2 July, 1945, is forwarded herewith.

W. H. LAWRENCE.

DECLASSIFIED. 0445, OPNAVINST 5510.1C
BY O.P. 9/28/45 DATE 5/31/42

DECLASSIFIED.

— page 169 —
10 May 1945
1012 (K) Departed SAIEN for patrol area in accordance with ComSubFoc Oporder 101-4/5 in company with U.S.S. TORO and LCI 1098, escort.
1200 (K) Posit.
    Lat. 15° 17' N.
    Long. 14° 29' E.
1540 (K) Escort released.
1558 (K) Trim dive.
1613 (K) Surfaced.
11 May 1945
    Armour patrol area.
743 (K) Submerged for trim dive.
1003 (K) Surfaced.
1200 (K) Posit.
    Lat. 15° 50' N.
    Long. 14° 15' E.
1637 (K) Submerged for trim dive.
1900 (K) Surfaced.
2010 (K) Sighted running lights of friendly plane. (A/c contact #1).
2130 (K) Received dismatch that twenty-five Thunderbolts and four Liberators would be crossing our path tomorrow and to maintain watch on lifeguard frequency.
12 Mar 1945
    Armour patrol area.
1608 (K) Submerged for trim dive.
0630 (K) Surfaced.
0745 (K) Watch stationed on lifeguard frequency.
1200 (K) Posit.
    Lat. 19° 26' N.
    Long. 137° 37' E.
1215 (K) Secured watch on lifeguard frequency.
1853 (K) Submerged for trim.
1912 (K) Surfaced.
12 Mar 1945
    Armour patrol area.
1000 (K) Submerged for trim.
1012 (K) Surfaced.

— page 170 —
1200 (K) Posit.
Lat. 24° 00' N.
Long. 137° 19' E.
1845 (K) Sighted 'drifting spherical horned type mine. Fired 30 cal. 50 cal. and 20 mm. TORO did likewise.
1915 (K) Mine sank. (Lat. 25° 15.0' N) (Long. 137° 23.0' E).
14 May 1945
0000 (K) Set clocks back one hour to (-9) zone time. Henceforth all times will be Item times, unless otherwise designated.
0430 Submerged for trim.
0448 Surfaced.
0615 TORO sighted and exploded a floating mine. (Lat. 27° 50' N; Long. 137° 21' E).
0649 Received ComSubPac dispatch telling us to keep east of 137° 3 till after sunset.
1030 Parted company with TORO.
1200 Posit.
Lat. 28° 48' N.
Long. 137° 20' E.
1500 Submerged.
1842 Surfaced.
15 May 1945
Lat. 29° 16' N.
Long. 133° 22' E.
1537 Submerged for trim dive.
1548 Surfaced.
1552 Sighted unidentified plane 3-4 miles on starboard beam on parallel course, dived. (A/c contact #2).
1630 Placed hydraulic plant out of commission to grind in leaky stop valve on manifold.
1800 Hydraulic plant back in commission.
1854 Surfaced. Seas have not abated.
16 May 1945
0230 Enroute patrol area.
While maintaining watch on APR heard voices on 140 meg. Apparently two search planes trying to locate each other. They finally did when one released a flare and turned on his running lights. The flare was seen from the bridge over the horizon bearing 240° T distance about 20 miles. Tried to contact planes on VIP but apparently too far away. Keyed SD but no contacts. (A/c contact #3).
0240 Submerged with YAKU SHIMA due north 50 miles.
1200 Posit.
Lat. 29° 23' N.
Long. 130° 32' E.
1906 Surfaced. Keying SD radar whenever APR contact appears between 140-180 megacycles.

— page 171 —
0-0-N-F-I-D-B-N-T-I-A-L
Report of Sixth War Patrol

1909 AFR contact 150 megacycles pulse rate 500. Keyed SD, pip at 11 miles closed to 8. Dived. (A/c contact #4). Surfaced.
1940 Sighted aircraft distant about 4 miles, dived. (A/c contact #5). Surfaced.
2130 SJ contact 17,000 yards, closed raridly to 9,000 yards, dived. (A/c contact #6). Decided to stay submerged till monsoon which was at 2355.
17 May 1945
0030 Surfaced.
0458 Saturated contact on AFR 150 megacycles 500 pulse rate, dived. (A/c contact #7). There has been a great deal of radar interference of all descriptions in the vicinity of AKUSIKI JIMA.
1200 Fosit.
Lat. 29° 34' N.
Long. 129° 09' E.
1912 Surfaced.
1940 Sighted unidentified aircraft at 5 miles, dived. (A/c contact #8).
2030 Surfaced.
2051 AFR interference 150 megacycles 500 pulse rate, keyed SD, pip at 5 miles, dived. (A/c contact #9).
18 May 1945
0045 Surfaced.
0203 Radar contact while manning ST radar, bearing 150° T distance 11,000 yards. Shifted to SJ-radar and picked up SJ interference on this bearing. Exchanged recognition signals with U.S.S. SEGUNDO. (Ship contact #1).
0239 AFR interference 150 megacycles 500 pulse rate, keyed SD, pip at 5 miles, dived. (A/c contact #10).
0345 Surfaced.
0400 Sent U.S.S. MUSKALLUNCE Serial One to ComSubPac reporting illness of Commanding Officer.
0505 Submerged.
1200 Fosit.
Lat. 29° 14' N.
Long. 130° 11' E.
1912 Surfaced.
1935 SJ contact on a plane at 2,900 yards. 0.0.D. did not see plane but sighted by lookout. Dived. (A/c contact #11).
2140 Surfaced.
2341 SD contact at 6 miles, dived. (A/c contact #12).
19 May 1945
0031 Fiked up screws bearing 290° T 220 rpm. Came up to radar depth and received SJ interference. Tried to challenge him but no response. Believed to be U.S.S. DRAGONET. (Ship contact #2).

— page 172 —
0131  Surfaced.
0150  SJ contact 7,000 yards closing fast, dived. (A/c
    contact #13).
0214  Surfaced. Received ConsubFasc dispatch instructions to
    rendezvous with U.S.S. COD and obtain Relief Commanding
    Officer. Sent U.S.S. MUSKALLUNGE Serial Two acknowledging
    these instructions.
0713  Submerged.
1000  Sighted 3 FBM's bearing 027° T. (A/c contact #14).
1200  Posit.
    Lat. 29° 16' N.
    Long. 130° 10' E.
1918  Surfaced, proceeding to rendezvous with U.S.S. COD.
2017  SJ contact bearing 190° T, distance 12,000 yards. Keyed
    SD, pip at 5 miles. Has IFF. (A/c contact #15).
20 May 1945
0027  While keying SD picked up plane at 8 miles. Tracked
    him around portside with SJ. Has IFF. Unable to establish
    with VHF communication. (A/c contact #16). Lost plane
    at 10 miles.
0210  SD contact 8 miles, tracked with SJ never coming closer
    than 9,700 yards. Has IFF. (A/c contact #17).
0830  Sighted U.S.S. PATON on southerly course. (Ship contact
    #3).
0900  SJ contact on DANZO GUNTO bearing 300° T, distance
    60,000 yards.
1022  SJ picked up plane at 8 miles. Closed to 6 miles. Dived.
    No IFF. (A/c contact #18).
1200  Posit.
    Lat. 32° 03' N.
    Long. 128° 48' E.
1940  Surfaced.
2022  Pip on SJ and SJ interference bearing 180° T distance
    9,950 yards.
2030  Exchanged recognition signals and calls on SJ radar
    with U.S.S. BILLFISH. (Ship contact #4).
2235  SJ radar interference and exchanged recognition signals
    and calls with U.S.S. COD. (Ship contact #5).
2250  Received instructions from U.S.S. COD via VHF for rendezvous
    and transfer of Relief Commanding Officer to U.S.S.
    MUSKALLUNGE.
2345  Stopped, lying to waiting for rubber boat from U.S.S.
    COD.
21 May 1945
0045  Commenced maneuvering to close rubber boat.
0105  Commander W. H. LAWRENCE, USN reported aboard and relieved
    Lieut-Condr. L. A. LAJAUNIE Jr., USN as Commanding
    Officer U.S.S. MUSKALLUNGE in accordance with ConsubFasc
    dispatch orders.
0121  Lieut-Condr. L. A. LAJAUNIE Jr., USN transferred to
    U.S.S. COD via rubber boat for return to CUAM for
    treatment.

— page 173 —
0155  Transfer completed, parted company with U.S.S. COD, and set course for patrol area.
0542  Sent U.S.S. MUSKELIUGER Serial Three to ComSubPac giving expected time of arrival vicinity lifeguard stations.
1050  Submerged for trim dive.
1128  Surfaced.
1200  Posit.
    Lat. 31° 28.8' N.
    Long. 125° 34.6' E.
1245  Sighted drifting spherical horned type mine.
1317  Sunk mine with 20 mm gunfire. Lat. 30° 20.5' N; Long. 125° 24.5' E.
1420  Sighted drifting spherical horned type mine.
1438  Sunk mine with 50 caliber gunfire. Lat. 31° 13.5' N; Long. 125° 10.0' E.
1700  Converted #4 Main Ballast tank.
7733  Dived to flush out tank.
1315  Surfaced.
2045  SD contact on friendly search plane at 14 miles. Established WHF communication. Asked plane if he had sighted any ships. He replied negative and said he was going on. Lost plane on SD at 16 miles. (A/c contact #19).
22 May 1945
0615  Sighted drifting spherical horned type mine and exploded it with 50 caliber gunfire. Lat. 29° 08.5' N; Long. 123° 10.5' E.
0715  SD contact 10 miles, range opening. (A/c contact #20).
Lost contact at 13 miles. Plane not sighted.
0730  Entered patrol area, proceeding south to vicinity of lifeguard stations.
No attempt will be made to include in narrative the AFR contacts encountered during this patrol. Frequencies and characteristics of contacts are listed in Radar Section.
0735  J.O.C.D. sighted unidentified plane to westward on northerly course, estimated range 12 miles. No contact on SD. No IFF. No answer on VHF. Lost plane in clouds shortly thereafter. (A/c contact #21).
Hercatter in narrative all A/c contacts which showed no IFF and with which we were unable to establish VHF communications in three call ups are designated "bogey".
0925  Trim dive. Bow planes failed to rig out.
1030  Bow planes back in commission. Trouble found to be in limit switch.
1555  Surfaced.
1200  Posit.
    Lat. 28° 28.0' N.
    Long. 122° 52.0' E.

— page 174 —
1233 Submerged. Operation of bow planes checked satisfactory.
: 1402 Surfaced.
: 23 Mar 1945
: 0435 SJ radar contact bearing 2250 T, range 9,150 yards.
: Tracked target on course 135 T, speed 4.5 knots.
: Suspected sampan but in view of range at which picked
: up and approaching daylight decided to look him over
: submerged.
: 0517 Div'd.
: 0545 Target identified as a large Chinese junk. Commenced
: opening out from his track.
: 0958 Sighted sails of three more junks over horizon to
: southward.
: 1009 Surfaced. Changed course to investigate original junk
: further, as his course heads him for Formosa.
: 1052 Fired two rounds of 40 mm across his bow. Junk immed-
: itely lowered sails and hoisted Chinese flag. Went
: close aboard. Crew of junk lowered a small boat and
: three Chinese out of a crew of at least eight visible
: on deck came over alongside in it. One man spoke a
: little English. The Executive Officer attempted to
: question him but without much success. Decided they
: were all Chinese. Cave them some cigarettes and took
: a few pictures. They appeared to consider their
: boat trip very worthwhile.
: 1139 Resumed course and speed avoiding the other three sail-
: boats now plainly in sight through high periscope.
: 1200 Posit.
: Lat. 260 13.0' N.
: Long. 1210 27.0' E.
: 1645 Sighted TUNG YUNG Island bearing 3260 T, distance 40
: miles. Also sighted various peaks on China coast.
: 1827 SD contact 13 miles. (bogey). Plane sighted from bridge
: at 12 miles was southward of us crossing ahead. It soon
: disappeared in clouds and was lost on SD at 14 miles.
: Plane not identified. (A/c contact #22).
: 2215 Plane on SD at 15 miles. (bogey). (A/c contact #23).
: Lost contact at 19 miles. Plane not sighted.
: 2315 Pip on SJ at 11,000 yards. Closed rapidly to 8,000
: yards. Div'd. (A/c contact #24).
: 24 May 1945
: 0002 Surfaced.
: 0432 Sighted searchlight beams coming from Formosa.
: 0435 SJ reported pip at 4,100 yards, closing. Div'd. Nothing
: heard on sound nor observed on returning to periscope
: depth. Decided to remain submerged for the day and
: repair leak in hydraulic line to engine exhaust valves.
: A minor leak has been present for some time but has now
: reached the point where it must be fixed. Secured hyd-
: raulic system aft and commenced work.

— page 175 —
1200 Posit.
Lat. 25° 30' N.
Long. 120° 47.5' E.
1610 Surfaced to listen on Luzon frequency for possible lifeguard assignment. Received message concerning lifeguard station for 25th.
1700 Hydraulic leak repaired.
1800 SD contact 6 miles (boney), dived. (A/c contact #25).
1847 Surfaced.
1900 Sighted two unidentified aircraft from bridge distance 10 miles, closing, dived. (A/c contact #26).
2013 Surfaced.
2230 SJ contact 13,000 yards. Contacted on WHF and identified as friendly plane. Lost contact after exchanging calls. (A/c contact #27).
2318 SJ contact at 6,000 yards closing rapidly, dived. (A/c contact #28). Plane not sighted.
25 May 1945
0051 Surfaced and set course for lifeguard station.
0330 Received message from Luzon that strike for to-day has been cancelled.
0605 Dived in Formosa Straight for submerged patrol.
1200 Posit.
Lat. 25° 52' N.
Long. 121° 03' E.
1600 Surfaced.
1723 Sighted drifting spherical horned type mine. Exploded it with 50 caliber gunfire. Lat. 26° 08' N; Long. 121° 15' E.
1821 0.0.D. sighted unidentified plane on southerly course range about 4 miles, dived. (A/c contact #29).
1920 Surfaced.
1930 Received message concerning lifeguard station for strike on 26th.
26 May 1945
0329 SD contact 6 miles. (boney). Closed to 3 miles, dived. (A/c contact #30).
0412 Surfaced in increasing wind and seas from S.W. Frequent rain squalls.
0445 SJ contact in heavy rain, bearing 025° T, range 7,500 yards. Commenced tracking. Target tracked on course 060° T, speed 3 knots.
0542 Dived near his track and discovered when he came into view through rain that we had another junk.
0600 Surfaced with junk obscured in heavy rain. Set course for lifeguard station, now heading into force 2-3 seas with heavy intermittent rain squalls.
1000 Sighted drifting spherical horned type mine. Manned 50 caliber.
1050 Lost sight of mine in increasing swells as seas continued to build up after obtaining several 50 caliber hits.

— page 176 —
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: 1130
: 1200
: 1400
: 1514
: 1600
: 2333
: 27 May 1945
: 0032
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: 0715
: 0840
: 0910
: 0955
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: 1129

---

**U.S.S. MUSKALLUNGE**

**Report of Sixth War Patrol**

Mine probably sank as it appeared to be floating lower in water when last seen and not rising up with swells. Headed for lifeguard station. Commenced listening on lifeguard frequencies. From a position three miles north of station commenced calling cover planes at five minute intervals but unable to establish any communication with them and nothing heard on the lifeguard frequencies during period of the strike. At 1310 faintly heard U.S.S. BREAM on station to southward talking with her cover planes. Strike in our direction possibly cancelled due to weather. Visibility during this period never more than about three miles with frequent down-pours of rain.

Posit.

Lat. 25° 15' N.
Long. 120° 44.5' E.

SD contact 6 miles. (bogey), dived. (A/c contact #31).
Surfaced.
Received message from Luzon - Nothing for MUSKALLUNGE.
Received message assigning us lifeguard station for 27th.
SD contact 13,000 yards. Closed to 10,000 yards. (bogey), dived. (A/c contact #32).

Surfaced - Weather overcast and squally.
SD contact on plane, range 12,900 yards, closing. (bogey). Dived. (A/c contact #33).

Surfaced.
Sighted aircraft from his engine exhaust flare at a range of about 2 miles. Dived. (A/c contact #34).

Surfaced.
Sighted drifting ashore! horned type mine. Sank it with 50 caliber gunfire. (Lat. 25° 14' N; Long. 120° 19.5' E).

Sighted empty liferaft. Raft appeared to have been in water a long time. No markings. Blue canvas covering over cork over metal. Slightly larger than the size of one of our four man rubber boats. Sank liferaft with 20 m gunfire.

Trim dive.
Surfaced in steady rain. Visibility 2 to 3 miles.
SD contact at 8,400 yards, closing rapidly, dived. (A/c contact #35).

Surfaced. Continued to lifeguard station.
Dawned obtaining SD contact on covering planes and settled communications with them. At this time
continued with no wave suspected for the last few days. Our SD radar is not operating properly. Radar technician
says it trouble may be in mast.

Sighted our BAY cover plane momentarily through heavy rain at a distance of 2-3 miles. Votored him back to

— page 177 —
1159
: 1200
: 1212
: 1300
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: 0017
: 0232
: 0726
: 1010
: 1100
: 1530
: 1600
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U.S.S. MUSKALLUNGE
Report of Sixth War Patrol

our position from SJ ranges and bearings after he had passed out of sight without seeing us. He came back, found us and commenced circling at close range. (A/c contact #36).

Sight contact with our B-17 after having had him on SJ radar from a range of about 10 miles. B-17 circled us a couple of times and then shoved off. (A/c contact #37).

Posit.

Let. 240 45' N.
Long. 1200 15' E.

PB departed to return to Base, having informed us that he had no information of any planes down. Remained in vicinity of lifeguard station.

Changed course to north to get north or Lat. 25° as rain ceased and weather and visibility began to improve rapidly.

Sighted HITAM and TURBOU out Islands bearing 327° T at 38° and 22 miles respectively. Skys have now cleared completely and sun is out.

Received message from Luzon that there were no planes down.

Ship (bogey), dived. Engines heard from bridge but plane not sighted. (A/c contact #36).

Surfaced.

Fip on SJ at 16,000 yds closed rapidly to 14,000 yards and then opened again to 16,000 yards and was lost. It was raining and visibility at this time was not too good. (A/c contact #39). (bogey).

Sighted peaks on Formosa and on China coast almost simultaneously as weather improved and skys cleared after having been overcast with low clouds and rain all morning.

Dived to replace cracked cylinder liner in #1 M.E. and to repack drain pump. (See defects).

Posit.

Lat. 250 45' N.
Long. 121 03' E.

Ship #1 M.A. back in commission.

Completed repairs to drain pumps.

Surf out intermittent rain squalls.

Sighted single engine unidentified plane coming out of clouds on about a parallel course at a range of 4-6 miles. Dived. (A/c contact #40).

Flooded #2 M.E. out of commission to replace cracked cylinder head. (See defects).

Surf. cod.

Sighted two fighter aircraft flying in formation headed in direction of Formosa at fairly high altitude, range about 3-4 miles. Dived when one plane banked toward us. Identification not positive but believe these planes were H.M.S. (A/c contact #41).

— page 178 —
1930 Copied Luzon schedule submerged and received message assigning us lifeguard station on 29 May.
2002 Surfaced.
2150 S7 radar pip at 15,000 yards. Plane sighted shortly thereafter from bridge. Plane on a northerly course and believed to be a bomber or transport. (bogey).
2240 Picked up pip on S7 at 12,000 yards closing rapidly. Divod. (A/c contact #43).

29 May 1945
0007 Surfaced.
0018 Sighted unidentified plane coming in at a range of about 4 miles. Appeared to be 4 engine bomber. (A/c contact #44). Divod.
0222 Surfaced.
0230 #2 M.B. back in commission.
0618 Sighted unidentified plane, probably bomber or transport on easterly course headed for Formosa, range about 12 miles. Lost sight contact at an estimated range of 15 miles. (A/c contact #45).
0733 Made trim dive about 10 miles north of lifeguard station.
1033 Surfaced in vicinity of lifeguard station.
1100 Set watch on lifeguard frequency.
1132 Sighted 16 B-17. Planes Fours flying northward at high altitude. (A/c contact #45).
1147 Sighted B-17 and FBM plus four P-51 fighters covering latter. (A/c contact #47).
1200 Posit.
Lat. 25° 22.5' N.
Long. 120° 54.0' E.
1200 B-17 reported he had had a possible ship contact distance 60-70 miles, bearing 283° T from our position, and asked if we knew about it. Told him no and asked for more information. He said he would go over and look for it and showed off to westward.
1220 B-17 reported via HF that he had searched for contact along China coast but had not sighted anything.
1225 B-17 reported via HF that he had obtained a possible contact on his search equipment and was continuing on for 20 miles to investigate.
1235 B-17 reported results of search negative and that he was returning to our position.
1243 Regained sight contact on B-17. He now reported short on cross road that he would like to depart a little early if we were down.
1245 A. it appeared there were none give him permission to show off and he departed for home.
1250 Sighted single B-24 head south at high altitude. (A/c contact #46).
1305 FBI reported one plane battle damaged but nothing for

— page 179 —
0-0-N-T-I-D-N-T-I-A-I
Report of Sixth War Patrol

this rendezvous and that he was returning to Base. The lone B-24 we had seen at 1250 was possibly the damaged plane although plane appeared to be making good speed at fairly high altitude.
1309 Lost sight of PBM and his 4 plane fighter cover to southward.
1345 All quiet on lifeguard frequencies. Secured radio watch.
1411 Div'd in vicinity of lifeguard station on northerly course.
1600 Listened on Luzon frequency for possible message but nothin' received.
1720 Surfaced.
2140 5F radar contact at 25,000 yards. Closed quickly to 15,000 yards, then opened and was lost at 18,000 yards indicating a plane. (bogey). (A/c contact #49).
30 May 1945
0055 5F radar contact on plane at 20,000 yards. Closed rapidly to 5,000 yards with only a 10 bearing change. Div'd. Plane not sighted. (A/c contact #50). (bogey).
0310 Surfaced.
0630 Sighted an unidentified plane headed north distance about 15 miles. Lost from sight shortly thereafter in distance 10-12 miles. Lost from sight at about 15 miles. (A/c cont. at 52).
0707 Sighted unidentified bomber, probably SALLY at a range of 6-8 miles. Div'd as plane turned toward us. (A/c contact #53).
0805 Full voltage ground on bow-plane rigging and tilting contactor panel. Secured planes to effect repairs. (Soa defects).
1015 Bow planes back in commission.
1030 Surfaced and had a Chinese junk in sight to southward, hull down. Avoided.
1200 Fosit.
Lat. 26° 31' N.
Long. 121° 56' E.
1230 Held run Drill. Fired one round from 5 inch gun. Also fired 20 and 40 mm guns, tommy guns and small arms.
1530 Sighted drifting spherical horned type mine. Sank it with 20 mm fire. Hinge encurcated with barnacle. (Lat. 26° 43' N; Long. 122° 21' E).
1930 Received message assigning us lifeguard station for 31st.
31 Jan 1945
0240 Radar out on bearing 355° T range 11,000 yards.
Commenced trackin'.
0256 Tracked target on course 320° T speed 3 knots. Sighted him at 6,000 yards. Identified at 6,000 yards as another junk. Secured tracking party and commenced opening out.

— page 180 —
0303 Sighted aircraft engine exhaust flare and shortly thereafter obtained SJ contact on a plane on same bearing at 19,000 y. rds. Plane was crossing ahead and to westward of us on a northerly course. Lost plane on SJ at 21,000 yards. (bogey). (A/c contact #54).
0615 Sighted unidentified plane on a southwesterly course at a range of 7-8 miles. Dived. (A/c contact #55).
0722 Surfaced, proceeding to lifeguard station.
1030 Set watch on lifeguard frequencies.
1114 Sighted drifting spherical horned type mine. Maneuvered in vicinity of mine. Manned 50 caliber and commenced efforts to destroy it.
1115 Sighted our BFM cover plane with three P-51 fighters over him to southward. (A/c contact #56). Established voice communication with FIM and tracked him in on SJ. He commenced circling us at a range of about 3 miles.
1127 Informed plane we were doing some shooting so he wouldn't get too close.
1159 Sank mine after several passes. Mine appeared very old and heavily encrusted with barnacles. (Lat. 25 19.0N; Long. 120° 45.0' E).
1200 Posit.
Lat. 25° 17' N.
Long. 120° 45' E.
1219 Sight contact and radar contact on an indefinite number of B-24's. (A/c contact #57). We counted a total of about twenty three at one time. These bombers gradually disappeared to southward evidently heading home.
1332 FBM told us attack group was finished and no work for us.
1335 FBM said he was going home. Gave him our position and he disappeared to southward with his three fighters.
1345 Secured watch on lifeguard frequencies and headed north at one engine speed.
1630 No word from Luzon of any planes down.
1900 Sighted sailboat to northward through high periscope. Avoided.
2035 Sighted two distant searchlight beams bearing 170° T coming from Formosa.
2157 SJ radar out of commission. (See defects).
2210 SJ back in commission.
2230 Picked up distant radar interference on the SJ bearing 210° T, which was the direction of Formosa. Interference too weak to analyze. Radar technician estimated interference 60 to 70 miles away. This was about our distance from Formosa at this time. Lost interference shortly thereafter. (See radar section).
2238 Received CasubPac dispatch directing us to remain clear of certain areas until further notice.
1 June 1945
0540 Lookout sighted sailboat hull down bearing 025° T, distance 5-6 miles. Avoided.

— page 181 —
0545 SD contact on friendly plane at 14 miles. Exchanged calls via VHF at 10 miles. (A/c contact #58). Lost Plane at 16 miles on SD. This is first indication that our SD is again operating with some efficiency. Radar technician has managed to improve ground readings of conductors in mast by the use of a hot air blower and by cleaning off outside head of mast with alcohol and applying glycol over rubber vulcanizing on the outside insulator and around studs. (See defects).

: 0727 Dived for submerged patrol east of TUNG YUNG Island. Posit.

: 1200 Lat. 26° 22' N. Long. 120° 45' E.

: 1816 Sighted masts of small craft to northward on westerly course.

: 1839 Surfaced and identified craft as Chinese junk through high periscope. Avoided.

: 1930 Received message assigning us lifeguard station on 2 June.

: 0000 Shrouded lifeguard station off Formosa.

: 0950 Sighted HOTA SHO Island and Lighthouse.

: 1000 On station. Set watch on lifeguard frequencies.

: 1035 Established voice communication with cover planes.

: 1058 Sighted B-17 bearing 1750 T distance 14 miles. Vextored him to our position. (A/c contact #59).

: 1105 Sighted FBM bearing 150° T distance 12-14 miles. Vextored both planes circled us at a distance of about 3-4 miles. FBM and B-17 departed for home in company having informed us that no planes were down.

: 1200 Lat. 25° 42' N. Long. 121° 32' S.

: 1234 Made trim dive.

: 1315 Surfaced.

: 1610 Sighted drifting spherical horned type mine. Mine was floating low in water and had quite a few barnacles. Manned 50 caliber.

: 1625 Mine sank without exploding after several hits. (Lat. 26° 08' N; Long. 121° 45' E).

: 1630 No word received from Luzon of any planes down. Headed north.

: 1740 Sighted another drifting spherical horned type mine; this one very old and heavily barnacled.

: 1741 While maneuvering to sink mine had SD contact at 9 miles. (bogey). (A/c contact #61). Lookout sighted this plane heading southeast, at a distance of 8 miles. Plane not identified and lost from sight shortly thereafter.

: 1747 Lost contact at 20 miles.

: 1800 Sank mine after obtaining a number of 50 caliber hits. We managed to make mine smoke but were unable to explode it before it finally went under.

— page 182 —
2205 Picked up a very distant interference on the SJ bearing 010° T. (Lat. 26° 42' N; Long. 122° 19' E).
: 2255 Lost interference.
: 3 June 1945
: 0021 Picked up a single sweep of distant interference on the SJ bearing 060° T. This interference of about the same strength but apparently a different type from that encountered at 2205. (Lat. 27° 05' N; Long. 122° 40' E).
: 0205 Again received the interference we had had previously at 2205 and on approximately the same bearing to northward as before (010° T). Interference again very weak. Attempted to increase strength of the interference in an effort to develop a contact on something by running first on northeasterly and then on easterly courses but we were not able to ameciably increase the strength of either interference nor cause the bearing to change much.
: 0600 Intensity of interference very weak and beginning to fade out. Interference to eastward now bearing about 090° T, while that to northward now bears 015° T. Concluded sources to be distant and that excellent sensitivity of our own SJ together with favorable atmospheric conditions was responsible for reception. Radar technician stated interference to northward appeared similar to an SJ while that to eastward appeared as having definitely different characteristics from SJ radar, (i.e., lower pulse rate and wider pulse width). (See radar section).
: 0850 Trim dive.
: 0928 Surfaced.
: 1200 Foot.
: 1555 Sighted HOKA SIO Island and Lighthouse bearing 166° T distance about 23 miles.
: 1-30 Received lifeguard assignment for 4 June.
: 4 June 1945
: 1000 From vicinity of lifeguard station commenced calling cover planes.
: 1049 Sighted B-17 bearing 167° T distance 12-14 miles. Established voice communication with him. He told us PBY cover plane did not get off today. (A/c contact #62). B-17 closed and commenced circling at 3-4 miles.
: 1131 B-17 said there was no work for us and departed for home. He passed out of sight bearing 098° T.
: 1200 Foot.
: 1236 Headed north from vicinity of lifeguard station at slow speed.

— page 183 —
1323 Trim dive.
1248 Surfaced.
1500 No word from Luzon of any planes down.
1648 Sighted a formation of eight planes at a range of about 14 miles, heading north at medium altitude. (Lat. 25° 30.5' N; Long. 120° 47.5' E). One was a BATTY. The others were not able to identify except that they appeared to be single engine planes, definitely JAP. Sent a contact report of them in aircraft code on WOPAC0 frequency to OKINAWA for information of search planes. (A/c contact #63). (bogey).
1723 Sighted unidentified aircraft at 10 miles crossing ahead on southerly course. (bogey). (A/c contact #64). Lost plane from sight at about 15 miles.
1729 Sighted unidentified plane bearing 345° T distance 8 miles heading northeast. Lost from sight shortly thereafter. (bogey). (A/c contact #65).
1012 SD contact 15 miles.
1023 Sighted a flight of four unidentified planes at a distance of about 10 miles bearing 060° T heading south. Lost from sight at 16 miles. (bogey). (A/c contact #67).
1930 Received message from Luzon assigning us lifesquad station for 5 June.
2123 SD contact at 6 miles. (bogey). Dived. (A/c contact #67).
2237 Surfaced.
2238 Sighted searchlights on Formosa bearing 160° T.
2235 Searchlights disappeared.
2335 Radar contact and at about the same time sighted two small Chinese junks bearing 070° T, range 2,000 yards. Avoided.
5 June 1245 Sighted drifting spherical horned type mine. This one had a belt of barnacles at waterline indicating it had been floating a long time. (Lat. 25° 30' N; Long. 120° 40' E). Named 40 mm gun and exploded it.
0920 Sighted two unidentified distant aircraft bearing 145° T headed northeast. Lost planes on bearing 085° T. (bogey).
0930 From vicinity of lifesquad station commenced calling cover planes at 5 minute intervals. No results and nothing heard on voice radio circuits.
1016 Sighted a probable B-17 on southerly course bearing 090° T distance about 12 miles. Called him continuously on voice circuit until he passed out of sight to southward but could not get him to answer up. (A/c contact #69).
1115 End of lifesquad period. No voice communications and no contact with cover planes other than the probable B-17 sighted at 1016.
1130 Submerged in vicinity of lifesquad station.
1200 Fosit.

Lat. 25° 11.0' N.
Long. 120° 41.5' E.

— page 184 —
1500  Listened on Luzon frequency for word of any planes down. Nothing heard.
: 1523  Surfaced and headed north at one engine speed.
: 1530  Received message from Luzon assigning us lifesquad station for 6 June.
: 1940  Sighted two junks to northward through high periscope.
: 2203  Sighted anti-aircraft searchlights on Formosa bearing 180° T. Searchlights appear to be in vicinity of SHINOHIKU airfield.
: 2233  Searchlights went out.
: 6 June 1545
: 0606  Sighted HOKA SHC ISL and Lighthouse.
: 0633  Sighted unidentified aircraft bearing 260° T distance 15 miles on northerly course. Plane picked up momentarily on SD at 14 miles. (A/c contact #70). (bogey).
: 0010  Sighted contact at 'bout 16 miles.
: 0830  Sighted unidentified plane through high periscope bearings 100° T distant 20-25 miles. Plane on a westerly course and soon lost from sight. (A/c contact #71).
: 0900  Trim dive.
: 0939  Surfaced, proceeding to lifesquad station.
: 1015  Sighted sailboat bearing 227° T distance 10 miles. Sailboat is in vicinity of our lifesquad station. His course is about 270° T but he is practically stationary as there is only a slight breeze. Changed course to run around him. From his position it is possible he has come out of KIRUN on Formosa. If not he has chosen a spot very close to Formosa for fishing.
: 1015  Sighted drifting spherical horned type mine. (Lat. 20° 44' h; Long. 121° 41' s).
: 1032  Sighted unidentified four engined aircraft at 10 miles closing rapidly and heading directly toward us at low altitude. We had already manned lifesquad circuits but nothing had been heard to indicate our B-17 cover plane was around. It was still 43 minutes before rendezvous time and cover planes have not been early in the past. As plane closed to 5 miles still unidentified, dived. (A/c contact #72). There is a possibility this plane was a PB4Y2 but also a good possibility it was Jap.
: 1040  Heard distant aircraft bomb.
: 1056  Second aircraft bomb, also distant.
: 1126  Surfaced.
: 1136  Sighted unidentified aircraft on northeasterly course at a range of about 12 miles, bearing 175° T. Fut stern toward while attempting to identify. No IFF. No answer on voice circuits. (A/c contact #73). (bogey).
: 1142  Plane headed directly toward us and range closed rapidly. Dived when he got in to about 5 miles, still unidentified.

— page 185 —
1200 Posit.
Lat. 25° 41' N.
Long. 121° 37' E.
Surfaced. Called cover planes on voice circuits but no answer. Heard two unidentified voice transmissions using calls CHICIER and CHICIER.
1300 Secured watch on voice frequencies but continued to listen on Luzon frequency and on 500 kcs.
1310 Raised watch at one engine speed keeping this morning's sailboat in sight through high periscope.
1610 Copied message from Luzon to U.S.C. ICIPISH.
1645 Second message to U.S.C. ICIPISH. No word for us.
1700 Having plotted above sailboat on possible track from Pornose and in view of fact that he was so near there this morning besides being close to our lifeguard station decided to investigate.
1720 Closed toward him and identified as a junk about 90-100 feet long.
1729 Commenced firing 40 mm shots across his bow in effort to get him to lower sails and lie to. He appeared to ignore us continuing on his way as we circled him at about 3,000 yards. He made no move either to douse sails or run up Chinese flag. This tended to confirm suspicion he might not be a fishing craft, so we continued circling, closing slowly and firing 40 mm over and ahead of him. At 2,500 yards put a couple of 40 mm shells through his sails. Still no action on his part. Did not want to get in too close. On the other hand did not want to attract a plane by too much gun firing. However, continued firing a few more rounds of 40 mm and finally a couple of bursts ahead of him with 20 mm. This convinced him and led to lowered sail and we closed to look him over. He had fair-close holes in each of his two sails from the two 40 mm hits and another hole, probably from a 40 mm ricochet fragment in his bow above water line. As we approached closer courted at least 15 men topside. They appeared to be Chinese. Lost of them did not appear too concerned by our presence.
1653 While preparing to send over boarding party sighted unidentified plane to eastward distant about 12 miles, passing us on a southerly course. Pulled clear of junk. (A/c contact #74). (begay).
1502 Lost plane from sight at about 15 miles and again manoeuvred to go alongside junk for further inspection. Junk in the meantime had started to raise sails but quickly lowered them again as I saw us coming back.
4910 Close alongside junk and this time looked over persons topside very carefully. Took pictures. Decided they were Chinese and in view of recent plane contact not decided against sending over boarding party. Had had Farmacist late standing by ready to go over also but apparently no

— page 186 —
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1803
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1950
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8 June 1945
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U.S.S. MUSKULUMGE
Report of Sixth War Patrol

one had been hurt. Gave them some bread and cigarettes and they were all smiles. However, still did not feel too satisfied about them. This junk as did the one we looked over earlier in the patrol had many more men aboard than would be required by a fishing boat this size. The reason for the presence of this one so close to Formosa is not clear nor their slowness in lowering sail. A possibility exists that some of the numerous junks in this area are being used to run between the China coast and Formosa for the reason that they are not likely to be molested. Their maximum speed is about seven knots under favorable wind conditions but their usual speed about four.

Headed west at slow speed.
Radar contact bearing 090° T. Closed and identified by sighting at 5,500 yards as another junk.
SD contact on a plane at 16 miles. Lost contact at 20 miles. (A/c contact #75). (bogey).

7 June 1945
0010 Picked up TUNG YUNG Island on SJ radar bearing 2900 T range 50,000 yards.
0420 SD contact at 6 miles. Closed to 4 miles, dived.
(A/c contact #76).
0642 Surfaced.
1055 Sighted sailboat bearing 3250 T. Avoided.
1132
1200
1215
1803
1843
1950
2106
2139
2330
2356
8 June 1945
0045
0230
0315

Lat. 26° 20' N.
Long. 120° 57.5' E.
Sighted two sailboats through high periscope bearing 2550 T. Avoided.
Sighted single engine unidentified plane crossing astern at range of about 3 miles on southwesterly course.
(A/c contact #77). (bogey). Dived.

Surfaced.
Sighted unidentified plane bearing 2500 T range about 10 miles. Plane crossed astern heading northwest and was lost at about 15-16 miles. (A/c contact #73) (bogey).
Sighted 6 anti-aircraft searchlights on Formosa bearing 1800 T.
SD contact at 8 miles. Plane not sighted. SD lost contact at 9 miles. (A/c contact #79). (bogey).
Searchlights on Formosa went out.
Picked up weak interference on the SJ radar bearing 090° T coming from Formosa. (See radar section).

8 June 1945
0045 Intermittent sighting of anti-aircraft searchlights on Formosa.
0230 Searchlights turned off.
0315 Lost interference on SJ.

— page 187 —
0323 Contact on SJ at 9,500 yards bearing 0900 T. Tracked and identified as a Chinese junk by sighting at 5,500 yards. Avoided.
0654 SD contact at 6 miles closing. Dived. Plane not sighted. (A/c contact 80). (bosey).
0601 Surfaced.
1030 Sighted unidentified bomber, probably BMTY, at a range of 10 miles bearing 210° T on a northerly course flying very low. (A/c contact #4). (bosey).
1034 Dived as plane turned toward us at a range of about 6 miles.
1200 Post: Lat. 25° 26.5' N. Long. 120° 37.0' E.
1247 Surfaced.
1306 Sighted drifting spherical horned type mine covered with barnacles. (Lt. 25° 26' N; Long. 120° 41' E). Mine sank without exploding after several hits with 20 mm. Sighted two unidentified aircraft bearing 120° T distant about 20 miles on southerly course.
1318 Sighted TUNG TUNG Island bearing 307° T.
1252 Obtained SD contact at 20 miles. Contact opened to 21 miles and was lost. (A/c contact #82). (bosey).
2306 Distant radar interference on SJ bearing 115° T. (See radar section).
9 June 1245 Lost radar interference on SJ.
0024 Sighted two unidentified aircraft bearing 110° T heading toward us at a range of about 6 miles. Dived. (A/c contact #83). (bosey).
1055 Surfaced.
1120 Sighted drifting spherical horned type mine. Sank mine with 50 g.1/2" gunfire after obtaining several hits. (Lat. 26° 34.5' N; Long. 121° 30' E).
1200 Post: Lat. 26° 37' N. Long. 121° 27.5' E.
1351 Sighted and sank with 20 mm gunfire another drifting spherical horned type mine. (Lat. 26° 34' N; Long. 121° 31.5' E).
1835 Sighted unidentified plane at a range of about 16 miles bearing 320° T. Ficled up on SD at 15 miles. Plane was on a southerly course. (A/c contact #84). (bosey).
1339 Lost sight of plane.
1901 Sighted unidentified transport or bomber on northerly course bearing 290° T range about 12 miles. Picked up by SD at 9 miles. (A/c contact #85). (bosey).
1903 Lost sight of plane.
2212 Sighted Anti-aircraft searchlight beam on Formosa bearing 190° T.

— page 188 —
2235 Sighted four more searchlight beams on Formosa bearing 195° T.
2236 Picked up plane on S7 at 9,000 yards bearing 195° T. Closing rapidly. Picked up on SD at 33 miles. Divv with S7 range 6,300 yards bearing 189° T. S7 range as most went under was 1,900 yards. (A/c contact #36).
2315 Decoded contact report.
10 June 1945
0005 Surfaced and went ahead on three main engines charging on other engine, conducting search for above contact. Having covered likely courses without making contact slowed to standard speed on two engines and headed south toward Formosa on course 155° T planning to patrol across routes into KIRU. Seas have been building up since midnight and are now force three from 120° T.
0628 SD cont at 9 miles. Closed to 7 miles. Divv. Plane not sighted. (A/c contact #87).
0725 Surfaced he ding into force 4 seas on course 120° T at one engine speed.
1200 Posit.
Lat. 26° 09' H.
Long. 121° 38' J.
1400 Placed j1 in E. out of commission to replace cracked cylinder liner. (See defectors).
1625 Sighted unidentified bomber or transport heading toward us at a range of about 10 miles on bearing 190° T. Divv when range closed to 5 miles. (A/c contact #88). (boxey).
1749 Surfaced. Weather has not abated. Headed into seas at one generator speed on course 130° T.
1800 Changed course to 300° T to close China coast and fix position.
2224 Picked up PISARUG Islands on S7 radar bearing 319° T distance 38,000 yards.
2303 Reversed course to 120° T to again head into seas until weather moderates.
11 June 1945
0415 #1 M.S. back in con. mission.
0505 Received message concerning typhoon centered 400 miles southwest of us at 1200 Item yesterday.
0819 Sighted large unidentified aircraft coming out of morning haze at a range of about 5 miles on bearing 140° T. Plane was flying at low altitude and heading directly toward us. Divv. (A/c contact #89). Decided to remain submerged in zones that weather will improve and to grind in a leaky negative tank blow valve.
1145 Completed work on negative blow valve.
1200 Posit.
Lat. 26° 43.0' N.
Long. 121° 22.0' J.

— page 189 —
1210
    : 1250
    : 1212
    : 0721
    : 0340
    : 1110
    : 1144
    : 1200
    : 1236
    : 1945
    : 2255
    : 0340
    : 0133
    : 0340
    : 0545
    : 1000
    : 1015

---

**Report of Sixth War Patrol**

**Surfaced**
- 1210
- 1250
- 1212
- 0721
- 0340
- 1110
- 1144
- 1200
- 1236
- 1945
- 2255
- 0340
- 0133
- 0340
- 0545
- 1000
- 1015

**Surfaced**
- 1210
- 1250
- 1212
- 0721
- 0340
- 0133
- 0340
- 0545
- 1000

— page 190 —
1200 Posit.
Lat. 25° 31' N.
Long. 120° 31.5' E.

1343 Surfaced.
14 June 1945
0930 Sighted unidentified bomber bearing 210° T on
easterly course at a range of about 5 miles. Dived.
(A/c contact #98).

1025 Surfaced.
1200 Posit.
Lat. 25° 22' N.
Long. 120° 31.5' E.

1347 SD contact at 16 miles closing.
1351 Sighted unidentified four engine plane bearing 010° T
range 9 miles heading toward us. Dived when range
closed to about 6 miles with plane still unidentified.
(A/c contact #99). (bogey).

1454 Surfaced.
1532 Sighted TURNBOUT Island bearing 296° T distant 16
miles.

1901 Sighted unidentified plane bearing 110° T distance
15 miles. Plane was on a southerly course and dis-
appeared from sight at about 20 miles. (A/c contact
#1001). (bogey).

2115 Flipped up faint interference on the S/T on bearing
170° T coming from direction of Formosa. (See radar
section).

2125 Lost above interference.
2240 SD contact at 10 miles. Opened to 12 miles and then
lost. (A/c contact #101). (bogey).

15 June 1945
0001 SD contact on a plane bearing 205° T, distance 7,500
yards closing. Flipped up on SD at 3 miles. Dived.
(A/c contact #102). (bogey).

0056 Surfaced.
0515 SD contact bearing 030° T range 3,300 yards. Sighted
sailboat on a westerly course. Avoided.

0600 Sighted masts of small sailboat through high periscope
bearing 271° T. Closed and identified as a derelict
Chinese junk about 30 feet long. Decided against
attempting to sink it as it was already practically
submerged except for the masts.

0821 Trim dive.
0833 Surfaced, proceeding to lifeguard station.
1000 On lifeguard station, awaiting cover planes.
1034 Sighted our PBY cover plane with six F-51 fighter
planes over him, bearing 215° T distant about 6 miles.
PBY closed us and commenced circling. (A/c contact #103).

— page 191 —
1111 Sighted our B-17 cover plane bearing 200° T at a distance of about 6 miles. B-17 closed and commenced circling also. (A/c contact #104). Plane was heading southeastward and disappeared from sight shortly thereafter.
: 1146 Sighted a FB42 bearing 135° T distance about 10 miles. (A/c contact #105). Plane was heading southeastward and disappeared from sight shortly thereafter.
: 1200 Fs. Lat. 25° 33.5' N. Long. 121° 13.0' E.
: 1210 PBY and F-51 fighters departed for Base.
: 1230 B-17 headed for home having informed us that he had no word of any work for us.
: 1252 Headed north at one engine speed.
: 1530 Received message from Luzon that no planes were down.
: 1930 Received message from Luzon assigning us lifeguard duties 16 June.
: 1157 Sighted several anti-aircraft searchlight beams bearing 200° T coming from Formosa. Searchlights were in sight intermittently until 2330.
: 16 June 1945
: 0110 Again sighted searchlight beams over Formosa. Beams disappeared shortly after sighting.
: 0445 Radar contact bearing 220° T range 3,300 yards. Identified by sighting. Avoided.
: 0600 CD contact 13 miles, closing.
: 0602 Sighted unidentified bomber on northerly course bearing 260° T distant 10 miles. (A/c contact #106). (Boeyer). Last sight contact at 13 miles and SD radar contact at 20 miles.
: 0720 Trim dive.
: 0747 Surfaced.
: 1030 In vicinity of lifeguard station awaiting cover planes. Obtained SD contact at 13 miles.
: 1033 Sighted our B-17 bearing 180° T distant 12 miles. He closed and commenced circling. (A/c contact #107).
: 1035 Sighted a FB42 patrol plane bearing 150° T distant about 16 miles on westerly course. (A/c contact #108). This plane remained in vicinity until about 1050 when he disappeared to eastward on bearing 090° T.
: 1040 Sighted our PBY cover plane with three F-51 fighters over him bearing 190° T distant about 10 miles. (A/c contact #109). He closed and commenced circling us.
: 1120 Sighted relief B-17 cover plane bearing 180° T distance 12 miles. He closed and commenced circling. (A/c contact #110).
: 1132 First B-17 departed for home.
: 1157 PBY and three F-51 fighters departed for home.
: 1200 Fs. Fs. Lat. 25° 43' N. Long. 121° 32' E.

— page 192 —
1209 Second B-17 departed for Base after informing us he had no word of any need for our services. Headed north at one engine speed.

1330 Received contact report of large enemy junk. Changed course and increased speed to 17 knots in effort to intercept.

1500 Received message from Luzon that there were no planes down.

1536 Sighted the derelict junk previously sighted on 14 June. Stopped long enough to put 8 rounds of 40 mm into it without much effect. It was too low in the water to do much damage. It's two masts were still up so it's not yet a navigational menace. Sighted small sailboat bearing 240° T through high periscope. Avoided.

1930 Received message from Luzon assigning us a lifeguard station for 17 June.

2000 Abandoned search for enemy junk. He must by this time be well to northward of us. Best we were able to do was reach his probable position at 1800. Further search impossible because of certain restrictions. Set course for lifeguard station.

2249 SD contact at 10 miles. Closed to 4 miles and picked up by SJ. Dived with last SJ range 5,000 yards, closing. (A/c contact #111). (bogey).

17 June 1945
0007 Surfaced.
0110 Faint interference on the SJ bearing 105° T. (Last, 260° 24' N; Long. 121° 00' S). Interference very irregular and commenced to fade soon after we had increased speed to 15 knots and headed toward bearing of the interference in an effort to develop it. It appeared that whatever the source of this interference it was a considerable distance away. (Sea radar section).

0140 Interference faded out completely.
0203 Sighted beams of searchlights on Formosa bearing 190° T. Searchlights were turned off a few minutes later.

0510 SD contact 20 miles opening. Lost contact at 25 miles. (A/c contact #112). (bogey).

0712 Sighted grizlin's enemy and closed to investigate. (Last, 250° 52.5' N; Long. 121° 15' S). Boat was about 30 feet long and although abandoned, apparently had not been so for long as it was in good shape. Boat had Japanese character on stern and was equipped with a one cylinder engine. Found on board a half bushel of potatoes and a basket of fish. Also a small notebook containing Japanese writing and a small red and white signal flag with Japanese characters, possibly boat's identification flag, named 40 mm and fired 24 rounds into boat demolishing it down to below water line section of hull. Fuel for boat's engine appeared

— page 193 —
0-0-I-F-I-D-Z-I-T-I-A-L
Report of Sixth War Patrol

to be a fish oil of some kind having a very strong unpleasant odor. Decided against expending any more ammunition on the half submerged remaining portion of boat which probably continued to float for some time. Headed for lifeguard station.

0800 Placed #2 engine out of commission to renew or clock cylinder liner. (See defects).

1015 In vicinity of lifeguard station. Sighted our FBY cover plane with three P-51 fighters over him bearing 250° T distance 12-15 miles. FBY closed and commenced circling us. (L/c contact #113).

10L5 #2 Main Engine back in commission.

11L35 FBY and his fighter cover departed to return to Base having informed us that they had no word of any planes down. Headed north at slow speed.

1200 Posit.

Lat. 25° 37' N.
Long. 121° 19' S.

1500 Received message from Luzon that there were no planes down.

1700 Received orders from ComSubPac to depart area sunset today.

2132 Sent U.S.S. MUSKILUNUS Serial Four to ComSubPac acknowledging above orders.

16 June 1945

15D contact at 16 miles. Opened to 10 miles and was lost. (L/c contact #114).

0525 Sighted sea boat hull down bearing 328° T. Avoided.

1000 Trim dive.

1017 Surfaced.

1200 Posit.

Lat. 30° 26' N.
Long. 124° 23' Z.

1510 Picked up three planes on SZ radar bearing 250° T at 18,500 yards. Lost contact bearing 240° T at 20,000 yards. No contact on SZ. (A/c contact #115).

1547 Sighted drifting ship. Local horned type mine. (Lt. 300° 42' N; Long. 124° 54' Z). Mine floating very low in water and too difficult to hit in present swells. Decided against shooting at it.

1636 Received ComSubPac dispatch concerning search plane down. We are cruising sector mentioned at this time. Set watch on 500 kcs.

1641 Sighted drifting ship. Local horned type mine. (Lat. 3100° N; Long. 125° 15' Z). Decided against shooting at it because of weather conditions.

1904 Sighted ship through high periscope bearing 006° T.

1906 Identified as a U.S. Submarine on southerly course. Exchanged calls by 3Z radar with U.S.S. DENTUDA. (Ship contact #6).

— page 194 —
1928
C-O-N-F-I-D-E-N-T-I-A-L
Report of Sixth War Patrol

1928
Closed and learned from DENTUDA that she had had a gun fight with two patrol vessels west of DAJUÇ GUNTO this afternoon. She informed us she had only 25 rounds of 5 inch ammunition remaining and would like to obtain some of ours. Took up parallel courses at 5 knots in attempt to pass some ammunition by means of lines and pulley but had to give up after parting lines as we were about to pass forst round. By this time it was too dark for further attempts. Gave DENTUDA some information concerning area and Lifeguarding and at 2102 parted company with her.

2025
Received ComSubPac dispatch stating that all survivors of downed search plane have been picked up. Secured watch on 500 kcs.

2120
Lost SJ contact with DENTUDA on bearing 2120 T, 10,700 yards.

19 June 1945
0600
#1 H.F. air compressor out of commission to replace leaky fourth stage cooler.
0705
Trim dive.
0730
Surfaced.
1000
#1 H.F. air compressor back in commission.
1200
Fosit.
Lat. 31° 44,2' N.
Long. 120° 52,8' E.

1300
Received warning of typhoon located at Lat. 13° N; Long. 134° 30' East at 190000 Zebra.
1315
Sighted drifting spherical horned type mine. (Lat. 31° 31' N; Long. 128° 57' E). Mine would be difficult target in present seas so decided against shooting at it.

2130
SD contact 9 miles, close in. Established VHF communication with search plane 59V464. Sighted plane at 2 miles and identified as FBM. Flare passed down our starboard side and disappeared to northward. (1/2 contact #116).

2300
Continued transit of Namesti Shoto through Pass south of AUKUSUKI.

20 June 1945
0125
Completed uneventful passage through Pass in heavy seas from the east. No signs of enemy radar observed during transit.

0335
Lost SJ radar contact on AUKUSUKI bearing 307° T distance 55,000 yards.

0530
Received typhoon warning message giving location of a typhoon as Lat. 17,20 N; Long. 134° East at 191800 Zebra. We are at this time heading into force 5 wind and seas at steerageway speed.

1200
Fosit.
Lat. 25° 06' N.
Long. 131° 02' E.

— page 195 —
1. Wind and seas have abated somewhat. With turns for 13 knots into force 3-4 seas now making 7-8 knots by Fit Log.
: 2. Increased speed to turns for 15 knots as weather continues to improve.
: 21 June 1945
: 0205
: 0246
: 0506
: 0706
: 1200
: 2114
: 2350
: 0229
: 0850
: 1129
: 1200
: 1550
: 1804
: 1629
: 1945
: 207
: 2200
:

— page 196 —
0245 Lost interference code bearing 235° T. Unable to exchange calls due to weakness of signals.
0635 Trim dive.
0649 Surfaced.
1200 Posit.
    Lat. 22° 29' N.
    Long. 139° 44' S.
2045 Pip on SD at 7 miles. Shows IFF. Closed to 5 miles and picked up by SJ bearing 003° T. Opened to 6 miles and then lost. (A/c contact #120). Plane not sighted.

24 June 1245
0325 Picked up SJ radar interference from another U.S. submarine bearing 140° T.
0427 Exchanged recognition signals and calls with W.S.S. TATON on SJ radar. TATON was not sighted but she passed on opposite course and we lost her interference to northward a short time later.
0620 Trim dive.
0645 Surfaced.
0749 Sighted a single 3-29 bearing 160° T on northwesterly course. (A/c contact #124).
0755 Lost sight of B-29 on bearing 160° T.
1200 Posit.
    Lat. 18° 17.0' N.
    Long. 142° 42.0' S.
1532 SD contact at 6 miles closing.
1533 Sighted 3-24 bearing 250° T on northerly course distant about 6 miles. Lost SD contact at 3 miles and sight contact shortly thereafter as plane passed into clouds. (A/c contact #122).
1720 Sighted plane believed to be FBM bearing 260° T distant about 14 miles on southeasterly course. Plane passed out of sight on bearing 172° T. (A/c contact #123).

25 June 1245
0515 Trim dive.
0533 Surfaced near rendezvous.
0538 Sighted our escort LCI 89 bearing 130° T distant 8 miles. Headed for escort and exchanged calls with him. Took up station astern of escort proceeding to SAIFAN. Commenced sighting many friendly aircraft. Passed through net entrance to TAIWANAG harbor. Took pilot aboard. Moored portside to submarine nest alongside U.S.S. ORION.

— page 197 —
26 June 1945
0954 Underway from along side U.S.S. ORION for MIDWAY, T.T.
The vorage repairs, fine services, and many courtesies extended during our stay at SAIPAN were much appreciated.
Passed through nc. gate and in company with LCI 89, our escort, set course for seafort lane.
1100 Trim dive.
109 Surfaced.
1415 Released escort.
1200 Fosit.
Lat. 15° 10.1' N.
Long. 145° 23.2' B.
1535 Commenced sighting many friendly planes, mostly B-29's.
1320 Sighted through high periscope, hull down, a small convoy which appeared to consist of several LST's with a lone DD escort bearing 0250 T crossing the Joint Zone Lane on a westerly course. Avoided by running around them to eastward.
1315 Exchanged recognition signals with a FQY search plane by bilinear tube.
2000 SD radar contact on a plane at 6 miles. Sighted and identified as friendly search plane at 3 miles.
27 June 1945
0651 Trim dive.
0701 Surfaced.
1200 Fosit.
Lat. 17° 53.5' N.
Long. 148° 06.8' B.
1845 Sighted U.S.S. LCI 89 on opposite course bearing 0350 T distance 10 miles. Exchanged recognition signals and calls via 3D radar.
1210 Lost sight of LCI 89 bearing 3380 T.
1937 3D radar interference bearing 0930 T.
2025 Radar contact bearing 1470 T range 10,500 yards. Exchanged recognition signals and calls by 3D radar with U.S.S. KRIEFISH.
2040 Lost radar contact on LCI 89 bearing 2870 T distance 12,000 yards.
28 June 1945
0130 Radar contact on unidentified aircraft presumed to be friendly at 10 miles.
0137 Lost contact on aircraft at 12 miles.
0824 Trim dive.
0849 Surfaced.
1200 Fosit.
Lat. 18° 52.2' B.
Long. 153° 57.2' B.
1223 Sighted through high periscope a U.S. Submarine bearing 1530 T on opposite course. Too far away to exchange visual

— page 198 —
U.S.S. MUSKELUNGE
C-0-T-T-D-N-T-I-A-L Report of Sixth War Patrol

calls. Assumed to be U.S.S. MUSKELUNGE.
Lost sight of submarine through high periscope on bearing 2010 T.
Set all ship's clocks ahead one hour to Zone Hinus
Eleven time.
29 June 1945
05:55 Picked up SJ interference bearing 0500 T.
0530 Sighted U.S. submarine bearing 0900 T on opposite course and exchanged recognition signals and calls by SJ radar with U.S.S. MUSKELUNGE.
0607 Lost sight of MUSKELUNGE bearing 1900 T.
0610 Trim dive.
0626 Surfaced.
1200 Posit.
Lat. 21° 00' N.
Long. 159° 06.5' E.

30 June 1945
0626 Trim dive.
0542 Surfaced.
1200 Posit.
Lat. 23° 33.5' N.
Long. 164° 48.8' E.

1 July 1945
0125 Sent U.S.S. MUSKELUNGE dispatch 301405 to CDG 17.5
requesting rendezvous.
0400 Set all ship's clocks ahead one hour to Zone Hinus
Twelve time.
0622 Trim dive.
0636 Surfaced.
1200 Posit.
Lat. 25° 03.5' N.
Long. 170° 50' E.
2345 Received CDG 17.5 dispatch 010735 confirming rendezvous.
2 July 1945 (Last Longitude Date).
0545 Trim dive.
0610 Surfaced.
1037 Made deep dive.
1112 Surfaced.
1200 Posit.
Lat. 26° 47.3' N.
Long. 177° 11.1' E.

2 July 1945 (West Longitude Date).
0700 Made rendezvous with escort planes.
0848 Took pilot aboard.
1033 Moored MDWAY, T.H. for refit.

— page 201 —
1. On 21 June during heavy weather, salt water coming down the engine air induction entered the auxiliary generator through the flanged joint along the top of the air cooler through a defective gasket. The top field coil was salted and grounded out. The cooler will have to be removed in order to completely clear this ground.

Auxiliaries and C&R:

1. The main stop valve in the line leading to the hydraulic manifold was discovered to be leaking prior to arrival in SAFE from FURL L-100R enroute patrol. It was submitted as one of a list of voyage repairs to the U.S.S. ORION. CRITICAL: a very good job of cutting the seat and grinding in the valve but shortly after deviating from SAFE the valve was observed to be leaking again. Upon inspection it was discovered that a small piece of metal filling had settled on the seat while the valve was open and had cut a groove in the seat when the valve was closed upon it. Another cut was experienced.

2. A leak in a silver-solder joint of the hydraulic supply line to #3 and #4 main engine outboard exhaust valves was repaired while in the area. Very little oil was lost before the leak was discovered and no further trouble was experienced after the joint was resoldered.

3. While "cycling the vents" at periscope depth a large bubble was discovered in Bow Buoyancy Tank. After running submerged with the vent open for an hour and then shutting it for about the same time the vents were again cycled and another large bubble was obtained from Bow Buoyancy. The blow valve to Bow Buoyancy on the high pressure air manifold was disassembled and a cut taken on the seat. Upon reassembly of the valve no bubbles were observed from Bow Buoyancy.

4. Several cables that go through the hull in the Control Room overhead have been leaking at depths below 150 feet since we left the Navy Yard. Attempts have been made by FURL, the ORION and ship's force to stop these leaks by repacking the cables but with little success. One large cable over the Navigators desk is the chief offender. One of the major jobs of the coming refit should be the repacking of these cables.

— page 202 —
5. Both periscopes were repacked in the Navy Yard with chevron-type packing. Excessive leakage was experienced throughout the petrol despite efforts to stem the tide with approved "non-floating" grease. A change of grease to medium mineral was made and some improvement noted but still the leakage was excessive. Both periscopes should be pulled during the coming refit and the packing renewed or adjusted as necessary. In addition #2 periscope turns very hard and has a bearing "grind".

6. One fourth stern aftercooler was removed during the patrol on #1 high pressure air compressor. A silver-soldered joint in the cooler was found to be parted.

(b) ORDNANCE AND CURRENCY:
None.

(L) RADIO:
Very little trouble was experienced in the upkeep of our radio equipment. The VHF transmission line shield leaked salt water down through the shear valve onto the transmitter twice. This necessitated washing down the whole final stage with fresh water and alcohol. The first time the leak was determined to be too long, the leak was stopped by a small drip pan installed under the shear valve. However, about two weeks later the valve again showed signs of leaking and the pot cock on the bottom of the drain can also developed a leak permitting a small amount of salt water to again enter the transmitter. The transmitter was inadvertently turned on before the presence of this salt water was noted. Condenser C48 ground and the plate voltage fuses in the motor generator burned out. Condenser and fuse were replaced and the final stage again cleaned with resulting restoration to duty of the TEL. This transmitter was used frequently during life aboard duty with normal results. We were unable to hear any signals on the underwater loop more than one day out of PERIL, HONOR, Loop flooded out several times during post-repair trials at MAFF ISLAND and training at PERIL HONOR, and while it was thought to be repaired, it is considered that the loop should be removed and examined for internal shorts during next refit.

(M) RADAR:
SJ radar:

The operation of the SJ radar was excellent. Phenomenal results were obtained while in area. Ranges on land were obtained.

— page 204 —
0-0-F-I-D-D-N-T-A-L
Report of Sixth War Patrol

vertical plane. This cut the response down an estimated 20% and gave a false echo at 2000 yards which looks similar to the SJ response to a small rain squall at the same range. There being no signs on board it was necessary to leave this window in until a replacement can be obtained. It is recommended that a stop be installed so that the periscope adapter cannot strike the waveguide from the top.

SD radar:

The operation of the SD radar varied from excellent to poor. While enroute from FQNL H RQOR to SAIPAN, during a quick dive the SD mast was not lowered soon enough and consequently bent so it would not lower. Mast was replaced in SAIPAN by the U.S.S. ORION with a mast obtained from the U.S.S. BANC.

On May 27 while in the area no responses were being obtained on aircraft beyond four miles. Meger readings were taken on the mast after a check on tuning had showed normal. The starboard line showed 500,000 ohms to ground and the port line showed 4.5 megohms. The top insulator was painted with glyphitol and a hot air blower was placed in the bottom of the mast for twenty four hours. Meger readings then showed starboard 1 megohm and port 5 megohms. The equipment was subsequently tested while on life-guard station and by lowering the filament voltage to 100 volts and retuning good results were obtained. Although the megger readings taken on the mast steadily lowered to 10,000 ohms on the port and 1 megohm on the starboard during the latter part of the patrol results remained satisfactory and during the trip home, ranges up to 27 miles were obtained on S-29's. However, a complete overhaul or replacement of the SD mast is indicated.

(N) SONAR GEAR AND SOUND CONDITIONS:

No sound contacts or unusual sound phenomena were noted during this patrol. The fathometer was used very frequently while in the patrol area and its performance was very satisfactory.

Very little trouble was experienced with the sonar gear. The sound motor generator lost sufficient field excitation to keep running. Resistance was decreased and excitation restored to normal value. Later, plate, bias, and AC voltage were lost. The only trouble which could be found was a broken fuse holder in the driver control unit plus side of 1250 volt plate supply. Fuse holder was replaced and normal operation restored.

The magnetizer switch on the JP-1 equipment burned out. Upon inspection it was found that the switch was wired with the magnetize switch across the main power supply. This switch was replaced and wiring corrected so as to obtain magnetizing power from the bank of magnetizing condensers.

— page 205 —
0-0-1F-I-D-8-1T-I-A-L Report of Sixth War Patrol

(0) BATHYTHERMOGRAPH DATA:
Bathythermograph records for East China Sea and FORMOSA Strait area were characterized by isothermal temperatures to depths up to 200 feet from 19 May to 7 June with the exception of one card taken on 3 June at 270° 00' N and 122° 53' E which showed an 8° negative gradient from 100 to 220 feet.

From 7 June to 11 June within 40 miles of 26° N and 121° E a 20 negative gradient was found at 100 feet. From 12 June to 17 June water was again isothermal.

On 19 June near MAMBO GUNTO § 320 23' N and 127° 50' E an 50 negative gradient to 120 feet was followed by a sharp positive gradient at 125 feet which was in turn followed by a 10 negative gradient to 100 feet. Currents up to 2 knots were found in this area.

(P) HEALTH, FOOD, AND HABITABILITY:
Health in general continues to be excellent. The general run of complaints consists of colds and headaches which were few. One man relaxed his thumb in a water tight door and broke it. The pharmacist made up a bottle of GOLD STARK, H. M., COS, TONN who for the 3rd straight patrol has served very well balanced and tasty meals plus excellent bakery products. Very little time was spent submerged which made conditions pleasant.

(Q) PERSONNEL:
(a) Number of men detached after previous patrol (12) (76)
(b) Number of men on board during patrol (56)
(c) Number of men qualified at start of patrol (71)
(d) Number of men qualified at end of patrol (13)
(e) Number of unqualified men making first patrol (13)

(R) MILES STERLING - FUEL USED:
| Miles | Gallons |
|-------||
| Saipan to Area | 2504 | 32,095 |
| In Area | 3742 | 36,680 |
| Area to Midway via Saipan | 4628 | 69,000 |

(S) DURATION:
Days enroute Sai'an, to Area (12) (27)
Days in Area (15)
Days enroute Midway via Saipan (9)
Days Submerged (9)

— page 207 —
U.S.S. MUSKALLIUDGE
C-O-N-F-I-D-E-N-T-I-A-L Report of Sixth War Patrol

Probable Enemy APR Contacts

Freq- Pulse Pulse How Probable Drawing *
uency Rate Width Rec'd Type

112 mc 1500 Less than - - - -
end 1 u sec
162 mc

150 mc 100 10 u sec steady Jap land based
to to to Mod III A/C &
155 mc 300 20 u sec S/S search

159 mc 750 12 & 25 slow Jap Airborne
u sec sweep Mod IV (new)

158 mc 400 2.5 & 2.5 usually
to to u sec to sweeping
167 mc 500 15 & 6
u sec

162 mc 475 8 u sec steady Jap Airborne
& long and Mod IV (new)
pulsing

150 mc 250 8 u sec sweeping Jap Airborne
to and to or Mod IV (new)
163 mc 400 15 u sec keying

95 mc 250 15 u sec usually Jap land based
to to sweeping Mod I A/C &
105 mc 750 40 u sec S/S

75 mc 450 25 u sec steady Jap land based
to to and Mod "ohi" A/C
60 mc 1000 100 u sec keying search

200 mc 250 5 u sec - - Jap land based
to to Mod II A/C
220 mc 750

268 mc 950 50 u sec - - Jap Airborne
Mod I ASV

300 mc 1000 long Jap Airborne
Mod III "100 u sec"

- 40 -

— page 210 —
75-122/116-5
Serial: 023

SUBMARINE DIVISION OFF T TWC
Cere of Fleet Post Office,
Sen Francisco, California,
3 July 1945.

FROM:
The Commander Submarine Division O.C.T

— page 212 —
12/10(A)/A16-3(18)
Serial 01757
CONFIDENTIAL

THI.D. INDORSEMENT to
JUSKALLUNGE Report of
Sixth War Patrol.

CENSUSPACE PATROL REPORT NO. 620
U.S.S. KUSKALLUNGE - SIXTH WAR PATROL.

From: The Commander Submarine Force, Pacific Fleet.
To: The Commander in Chief, United States Fleet.
Via: The Commander in Chief, U. S. Pacific Fleet.

Subject: U.S.S. KUSKALLUNGE (SS262) - Report of Sixth War Patrol (10 May to 2 July 1945).

1. The sixth war patrol of the KUSKALLUNGE was conducted in the East China Sea and Formosa Strait Areas. The KUSKALLUNGE was under the command of Lieutenant Commander L. A. LaJeunie, Jr., U.S. Navy, at the beginning of the patrol who was relieved early in the patrol by Commander W. H. Lawrence, U.S. Navy, to illness.

2. The KUSKALLUNGE performed lifeguard duties as well as offensive patrol. Unfortunately, no opportunity to inflict damage upon the enemy or to effect rescue presented itself despite thorough, aggressive area coverage. The noncontingent of this long, arduous patrol was relieved somewhat by the sinking of all but five out of 21 floating mines encountered. The Force Commander wishes the KUSKALLUNGE better luck next patrol.

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

DISCRIMINATION:
(Complete Reports)
Conincch (7)
CINCO (5)
CINCPAC (6)
JICPAC (1)
AICPAC (1)
Censurpace (1)
Cincelant (1)
Consubelant (1)
S/N School, III (2)
CO, S/M Base, PH (2)
Censopac (2)
Censovcspac (1)
Censubse7thTlt (Fwd Echelon) (2)
Censubse7thTlt (Rear Echelon) (2)
Cormorpac (1)
Censubsepace (3)
C-nsubspaceAddCond (20)
JUAD, MI (2)
CensubspaceSubordcon (3)
All Squadron and Div. Commanders, Pacific (2)
OSS 3 (Airmail) (5)
Substrainpace (2)
All Submarines, Pacific (1)

E. L. HYSES, 2nd, Flag Secretary.

— page 213 —
1. Enclosure (A), covering the WWII war patrol of this vessel conducted in the KURIL ISLAND - SEA of OKHOTSK area during the period 31 July 1945 to 12 September 1945, is forwarded herewith.

W. H. LAWRENCE.

DECLASSIFIED-ART. 0445, OPM/AVINST 5510.1C
BY OP-ORRC DATE 3/2/42

DECLASSIFIED

— page 214 —
1. Installation of T.D.M.
2. Overhaul of #1 and #2 main engines.
3. Replacement of 20 mm gun forward with a second 40 mm.
4. Replacement of worn bow plane rigging vertical drive shaft gear.
5. Overhaul of SD mast.
6. Installation of a second RBS receiver.
7. Overhaul of auxiliary engine generator.
8. Dry docking.

Officer Personnel Changes:
Transferred:
Lieutenant A. E. LUNDGREN, USNR
Lieutenant R. M. DALPIER, USNR
Lieutenant (jg), W. S. POLLEY, USNR

Received:
Lieutenant J. W. BEADLES JR., USNR
Lieutenant (jg), A. A. MAGILL, USNR
Design W. R. WOLLERING, USNR
Design R. E. DAVIS, USNR

(B) NARRATIVE:
Officers:
Commander W. H. LAWRENCE, USNR 7
Lieutenant W. W. BISSELL, USNR 6
Lieutenant J. W. BEADLES JR., USNR 3
Lieutenant W. H. RIEGER, USNR 7

Patrols *:
1 7
6
3
7

— page 215 —
31 July to 8 August 1945
    Enroute MDDAY, T. H. to patrol area in 6HOTSS SEA in accordance with ComSubPac On. Order 171-45 conducting daily training dives, drills, and school of the boat.

31 July 1945
    DEPARTED MDDAY.
    1725 (Y) Trim dive.
    1745 (Y) Surfaced.

1 August 1945
    Committed this date crossing 180th meridian.

2 August 1945
    Sent MUSKALLUNGE dispatch 011109 to CTG 17.5 reporting results obtained on radar reflector MURE ISLAND.

0730 (H) Training dive.
0755 (H) Surfaced.
0920 (H) Sighted Ventura search plane bearing 000 T distant 8 miles on westerly course. Fired MIXI recognition grenade and exchanged recognition signals by searchlight as plane closed and circled us at about 2 miles. Plane continued westward and was lost from sight at about 15 miles on bearing 2970 T. Unable to get plane to answer on VHF although we called him several times while he was circling us.

0925 (H) Training dive.
0940 (H) Surfaced.
0956 (H) Training dive.
1009 (H) Surfaced.
1020 (H) SD contact at 7 miles. Closed to 6 then opened and

— page 216 —
1200 (M)  Lat. 29° 11.8' N.
    Long. 178° 16.5' E.

1251 (M) Training dive.
1303 (M) Surtaced.
1315 (M) Test fired 5 inch, both 40 mm., 50 cal. and small arms.
1349 (M) Sighted a U.S. submarine through high periscope on bearing 3550 T distant about 9 miles. Presumed to be U.S.S. B.A.B. Distance too great for visual communication. Submarine was on approximately an opposite course and disappeared from sight to eastward on bearing 0420 T.

1402 (M) Held man overboard drill.
3 August 1945
0515 (M) Training dive.
0557 (M) Surtaced.
0559 (M) Training dive.
0910 (M) Surtaced.
1200 (M) Posit.

Lat. 30° 33.4' N.
Long. 174° 01.0' E.

1255 (M) Training dive. #3 L.E. outboard exhaust valve failed to close.
1305 (M) Surtaced. Removed #3 M.L. outboard exhaust valve high in inspection plane and found exhaust valve hinge pin nut had come off permitting pin to back partly out. Only a rusty piece of old cotter pin could be found in trunk. Rein-stalled nut, and new CRS cotter key. Inspected other outboard exhaust valves and found all had CRS cotter pins installed.

2210 (M) Pip on SJ radar bearing 2400 T distant 11,800 yards. Commenced tracking. Pip finally determined to be from a small rain squall.

2300 (M) Set ship's clocks back one hour to minus eleven zone time.

4 August 1945
0513 (L) Training dive.
0540 (L) Surtaced.
0755 (L) Deep dive.
0538 (L) Surtaced.
1200 (L) Posit.

Lat. 32° 59.3' N.
Long. 169° 13.7' E.

1335 (L) Training dive.
1405 (L) Surtaced.
5 August 1945
0535 (L) Training dive.
0558 (L) Surtaced.

— page 217 —
0355 (K) 1200 (X) 1209 (X) 1245 (X) 1600 (X) 1730 (X) 0600 (X) 0623 (X) 0930 (X) 1000 (X) 1025 (X) 1200 (X) 1305 (X) 1320 (X) 1337 (X)

Lat. 44° 07.8' N.
Long. 158° 02.2' E.

Training dive.
Surfaced.
Entered Polar Circuit Area DINER.
Weak APR contact 152 megacycles 200-300 PRF. Possibly Jap airborne.
Lost APR contact.
Weak APR contact on 105 megacycles, PRF 300. Believed to be Jap land based air search.
Trim dive.
Surfaced.
Commenced running into low fog patches which appear to be drifting down from northward.
Entered heavy fog. Visibility averaging about two hundred yards.
Made landfall by S2 radar with SHIMUSHIRU TO Southwest. Peak bearing 314° T distance 80,000 yards.
Posit.

Lat. 46° 31.0' N.
Long. 152° 02.5' E.

Having established position by radar fixes on SHIMUSHIRU, commenced transit of KITA URUPU SUIDO in heavy fog on four main engines on course 300° T. S2 radar contact bearing 260° T distance 5,600 yards. (Ship Contact #1). Commenced tracking.
Having determined we are almost directly ahead of contact which shows as a number of small pips slowed and paralleled. Targets track on course 040° T speed about 6 knots. Went to Battle Stations.
Fog commenced to lift rapidly and at a range of about 6,000 yards began to vaguely make out seven small ships showing slight starboard angles. Dived. As range closed identified targets as seatrucks similar to type shown on page 31 A/C NORPAC No. C74. They were roughly in two columns, a starboard column of four small ships and a port column of three. Bow of leading seatruck in port column about opposite stern of leading seatruck in starboard column. Made ready all tubes. Obtained ST ranges during approach down to 900 yards then shifted periscopes. Targets chocking on a steady course of 045° T at 6 knots. Observed hawser of some sort between two of the seatrucks in port column also Jap flags painted amidships on two others. Sound conditions poor. We were unable to pick up any screws at all until the range had decreased to about 700 yards.

— page 218 —
1124 (L) Training dive.
1200 (L) Surfaced.
1200 (L) Posit.
Lat. 36° 58.6' N.
Long. 166° 08.0' E.
Sighted friendly submarine through high periscope bearing 0120 T. Submarine on approximately an opposite course and too far away for visual signals.
Assumed to be one of the boats proceeding to MIDWAY from Polar Circuit.
Training dive.
Surfaced.
Received ComSubPac Serial Eight Nine giving prospective dates of arrival of boats in Polar Circuit, lifeguard assignments, and directing MUSKALLUNGE coordinate polar patrols.
Lat. 40° 44.1' N.
Long. 161° 42.1' E.
Training dive. #3 M.E. outboard exhaust valve again failed to close on diving.
Surfaced. Removed #3 outboard exhaust valve inspection plate and found exhaust valve hinge pin nut again off.
Nut had apparently jammed in operating gear or diving.
Cotter pin installed on 3 August had again sheared permitting nut to work loose and off. This time checked blueprint and discovered hinge pin is installed back-wards. A bright metal spot is visible on inside of exhaust trunk where nut and cotter pin have been hittir against side of trunk each time valve is opened, this causing cotter pin to finally break permitting nut to work loose and off. Installed hinge pin correctly and new cotter pin. Operation satisfactory.
Training dive.
Surfaced.
Very weak intermittent AFR contact on 120 megacycles. Possibly a distant SD being keyed.
Lost AFR contact.
Training dive.
Surfaced.
Deep dive.

— page 219 —
1410 (K) Set up looked good so decided to shoot. Set torpedo depth 2 feet and at
1410 (K) ...with a generated range of 560 yards 739 starboard track commenced firing four torpedoes from bow tubes one at each of the four seetrucks in the starboard (near) column, small gyros, zero spread. All torpedoes tracked toward targets by sound and apparently ran normal. Very brief periscope exposures made during firing in the flat glassy sea did not permit a periscope check of torpedo tracks. No hits. About 20 seconds after last torpedo was fired a short burst of small caliber fire was heard hitting the water in our vicinity. Probably the last ship to go by shooting at impulse bubble or down direction of torpedo tracks. Periscope was not up at this time.
1413 (E) Periscope observation showed targets standing on in formation with only a slight course change of 10 or 15 degrees to the left of original course. Also noted visibility was commencing to decrease. Set stations for Battle Surface.
1421 (K) Battle surfaced. By the time we were going ahead on the surface with guns manned the fog was closing in rapidly with visibility down to about 1,000 yards. Unable to see targets on surfacing but picked them up on SUD radar at 2,100 yards, now apparently heading more or more north running for SHILUS.IRU to. Figured only chance now or any success against them in view of short remaining distance they have to run to shallow water off SHILUS.IRU was immediate action. Decided to come in rapidly on the surface from their quarter on opposite side from the torpedo attack and attempt to blast at least one of them with gunfire before appreciable small caliber fire can be brought to bear against us. No longer have the element of surprise in our favor except for the fog and the advantage of radar. However, estimated two seetrucks at most, possibly only one, would be shooting back. Far column would not be able to open up as they would not be able to see us and would have to shoot blind through own ships.
1424 (K) Commenced gun approach as fog continued to close in reducing visibility further. On the first pass we closed last ship in port column to 900 yards but could not see him as he went by. Pulled out and came in again this time to 700 yards with same result. Time before ship would be out of reach was running out as we closed in again. On this pass still could not see targets at 500 yards but this time continued on in until at 375 yards we could just make out trailing

— page 220 —
1506 (E)  Commenced firing. Using 5 inch, both 40 mm and .50 caliber. Range about 350 yards. Within 2 meter of second target was shooting back with .30 caliber and simultaneously sea struck next ahead of him in column came vaguely into view through fog and also commenced shooting in our direction with a couple of .30 calibers. Fire of forward 40 mm was shifted to this fellow. Our 5 inch was shooting very slowly at this time but assumed this was in an effort to make shots count. 40 mm's were shooting deliberately and hitting. Realized only one .50 caliber was firing. No 5 inch hits. Shots just short of target. Decided we could not wait longer for a 5 inch hit. Combined return fire from sea strikes now fairly concentrated and not ceasing and although for the most part high it was now practically all on in deflection. Put rudder over and commenced pulling clear into fog. Ceased firing. Sea strikes continued random bursts in our direction at short intervals for next few minutes. At this time learned that WHITMAN, C. H., 2M3e, U.S.NR who was manning 50 caliber on high lookout platform was badly hurt and unconscious. Pharmacist HATE was summoned from Conning Tower, and applied a pressure dressing to an evident .30 caliber wound under man's jaw and man was carried below. Work came back shortly that WHITMAN was dead. He had been hit by an enemy bullet of about .30 caliber which had first hit his gun then ricocheted upward passing through his neck and into the brain. Also learned that two men had received minor wounds from small pieces of flying shrapnel. Inspection showed material damage of two .30 caliber holes in hydraulic cylinder of #2 peril scope and several .30 caliber holes in superstructure plating. Damage to sea strikes is believed to have been as follows: First target - A considerable percentage of 40 mm hits and a number of .50 caliber. Also probable damage from near missile from our 5 inch. (Three rounds just short of target). Second target - A number of 40 mm hits only. Inability of the 5 inch to score a direct hit almost inaccurately which had not been anticipated was due in part to the necessity of using open sights as target could not be located in the fog through the telescopic sights. Further gun action against targets ceased now out of the question. They are completely alerted. Also

— page 222 —
0-C-N-F-I-D-N-T-I-A-L
Report of Seventh War Patrol

continued north close inshore up the east side of island chain last night we should sight them sometime this morning. However, they probably holed up somewhere along SHIMUSHIRU TC and will wait for more foggy weather before continuing north.
Received ConsubPac dispatch stating RUSSIA has declared war on JAPAN. Also dispatch directing positive enemy identification before making any attack as RUSSIA! ships will now be running careened.
Strong ATR contact 195 megacycles 760 PRF. relieved to be Jap Land Based Air Search.
Lost ATR contact.
Post.
Lat. 47° 08.0' N.
Long. 152° 39.0' E.
No signs of sea-trucks. Believe they may be in BURTON YAN or SHIMUSHIRU WAN on SHIMUSHIRU TO. Will transit SHIMUSHIRU KAIKYO and head south along west coast of SHIMUSHIRU looking for them in these anchorages.
Commenced transit of SHIMUSHIRU KAIKYO as afternoon fog began to close in rapidly from the north. Visibility soon down to 0-300 yards. Radar becomes indispensable for navigating under the conditions we've encountered so far. No chance now of seeing into BURTON WAN so continued passage through SHIMUSHIRU Strait planning to go down west side of that island on the chance visibility may improve and we can look into SHIMUSHIRU WAN.
Decoded ConsubPac dispatch directing submarines remain outside SSA of OKCHTSK. Decided to continue southward along west coast of SHIMUSHIRU and pass through KITA URUFU CHANNEL and out of OKCHTSK SSA that way rather than reverse course and retransit SHIMUSHIRU KAIKYO in present heavy fog. We are now required to remain east of the KURILES as well as be south of Letitude 460 N by tomorrow at which time area to northward of that latitude becomes air surface temporarily.
Passed out of fog suddenly and abruptly as northern half of SHIMUSHIRU came unexpectedly into view. Fass we have just transited is still entirely obscured by fog. Also the southern half of SHIMUSHIRU TO. These abrupt changes in visibility are very impressive. Took pictures with movie camera of the northern half of SHIMUSHIRU island as we continued south staying 6-7 miles off shore. No signs of any activity. No patrols. Unable to see into SHIMUSHIRU WAN as southern half of SHIMUSHIRU and KITA URUFU SULDO to southward are completely enshrouded by fog. Present fog plus

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— page 224 —
1200 (K)  Lat. 44° 58.0' N.
    Long. 148° 55.3' E.
: 1400 (K)  Decoded ComSubPac dispatch regarding Press reports of J.A. offer to surrender.
: 1610 (K)  Decoded ComSubPac dispatch to Subs south of us that strike for 12th cancelled because of weather.
    M.SKALLUMC is not mentioned in this dispatch but believe this means our services also will not be required tomorrow.
: 1955 (K)  Set course for vicinity of assigned lifeguard station in case this assumption wrong.
: 12 August 1945  Received ComSubPac dispatch to National League stating all strikes for today are cancelled.
: 0432 (K)  Trim dive.
: 0459 (K)  Surfaced. As we are now well off coast of ETOROFU in vicinity of what we to have been our lifeguard station for today decided to spend morning in this vicinity routing torpedo's before heading back northward for another run up the coast of ETOROFU.
: 0711 (K)  Received weather advisory message concerning typhoon east of HONSHU.
: 1000 (K)  Placed #1 M.S. out of commission to replace attached lub oil pump. (See defects).
: 1115 (K)  Completed work on torpedoes. Set course to patrol northward along coast of ETOROFU 10-12 miles off beach.
: 1200 (K)  Posit.
    Lat. 44° 40.8' N.
    Long. 148° 00.2' E.
: 1700 (K)  #1 M.S. back in commission.
: 2008 (K)  Having received no word that air strikes for tomorrow are cancelled changed course to again head south toward vicinity of lifeguard station off ETOROFU.
: 13 August 1945  Received ComSubPac dispatch that our services not required for lifeguard duties to-day. Decided to continue surface patrol off ETOROFU.
: 0439 (K)  Trim dive.
: 0450 (K)  Surfaced.
: 0628 (K)  Lookout sighted smoke through morning haze on bearing 3450 T. Smoke close in to coast just south of HITOKU.PIU.
    N. (Ship Contact #2). Went to four engines and

— page 225 —
0635 (X) Commenced closing and tracking.
Through high periscope could occasionally make out a small craft of some sort, probably an SC. He was heading for HITOKAFTU 'AN and belching considerable smoke as he ran northward along ten fathom curves making about 15 knots. It was soon evident we could not head him off but continued on four engines toward FIT KAPFU 'AN which was wrapped in the morning haze, on the chance he was on patrol and might change course instead of continuing on in to 'AN. He did not and we watched his smoke finally disappear in the fog and haze inside 'AN. 'e had at this time reached hundr fathom curve southeast of entrance.
Dove and commenced submerged patrol at 100 fathom curve patrolling back and forth across entrance to HITOKAFPU 'AN. Through haze could occasionally make out several towers in vicinity of TETTET. Unable to see inside 'AN due to hazy and fog.
Visibility has closed in. Can no longer see the beach. Changed course to open out and surface.
Posit.
Lat. 44° 47.3' N.
Long. 147° 47.0' J.
Surfaced in good off shore visibility. Still very foggy along the coast although it is possible to make out several of the peaks. Commenced surface patrol paralleling coast holding north. 'ill reverse in time to be on lifeguard station to southward in the morning in event there is an air strike scheduled for the 14th.
14 August 1945
0200 (X) Received ComSubPac dispatch that there will be no air strike to-day.
0423 (X) Sighted wat appeared to be a searchlight in the vicinity of TOSHIWARI ISHIKI. Light was turned on only momentarily.
0502 (X) Trim dive.
0512 (X) Surfaced and continued south patrolling parallel to shore line and staying about 10-12 miles out. Visibility good except for usual morning haze along the land.
1200 (X) Posit.
Lat. 44° 32.3' N.
Long. 147° 35.0' E.
1230 (X) Momentary AAR contact at 150 megacycles. Did not last long enough to obtain pulse rate.
1551 (X) AAR contact 155 megacycles 500 PAF.
1600 (X) Last AAR contact.

— page 226 —
1742 (K) ATR contact 250 megacycles 450 PRF.
: 1755 (K) Lost ATR contact.
: 1516 (K) Test fired .50 caliber guns.
: 15 August 1945

: 0513 (K) Trim dive.
: 0522 (K) Surfaced.
: 0545 (K) Set course to round SHOTWALT HANA point on northeast coast of MOROFU planning to look into TOYORO WAN on MOROFU HALTIC. A sulphur mine and refinery are located at MOROFU and possibly we may find something at anchor in the WAN.
: 0902 (K) Heard a Statside radio announcement that Japan has accepted unconditional surrender terms.
: 0954 (K) Received LNAV from Secretary of Navy indicating conclusion of the war against Japan. Read message over 1 MC. Every-one on board in highest spirits. With historic moment of the wars' end at hand. Cancelled plans to re-commemorate MOYORO WAN and headed south continuing surface patrol.
: 1115 (K) Decoded ComSubPac dispatch directing all submarines cease attacks but remain on patrol stations and be on guard against last moment attacks by the enemy. Opened to about 20 miles from coast continuing north-south patrol off MOROFU paralleling land at this distance.
: 1200 (K) Posit.
   - Le., 4.50 00' N.
   - Long. 1490 04.4' N.
: 1239 (K) Fog closed in reducing visibility to about 2,500 yards.
: 1347 (K) Fog lifted and MOROFU again in sight.
: 1800 (K) Fog again closed in. Visibility 1,000 yards.
: 2314 (K) Fog cleared.
: 16 August 1945

: 0230 (K) Continuing surface patrol off MOROFU.
: 0300 (K) Received Force Commander's congratulatory message to Submarine Force.
: 0410 (K) Heavy fog set in. Visibility 50 yards.
: 0514 (K) Frin dive.
: 0525 (K) Surfaced.
: 0721 (K) Fog lifted. Visibility about 8 miles. Sighted peaks on MOROFU.
: 1100 (K) Read Force Commander's congratulatory message to crew over 1 MC also the dispatch from Fleet Admiral

- 13 -

— page 227 —
1117 (X) Decoded ComSubPac dispatch directing acknowledgment of ComSubPac Serial Three Two.
1200 (K) Posit.
    Lat. 44° 27.0' N.
    Long. 148° 03.0' E.
1307 (K) Transmitted MUSKALLUNGE Serial Two to ComSubPac acknowledging Serial Three Two.
1450 (K) Follow up of master gyro failed. Commenced steering by magnetic compass.
1515 (K) Follow up of master gyro back in commission. Resumed steering by gyro compass.
1730 (K) Decoded ComSubPac dispatch Serial Three Eight which directs MUSKALLUNGE to remain in present area. This area initially assigned to ComSubPac Serial Three Six.

17 August 1945
0125 (K) Continue surface patrol off TOROFU.
    Fog closed in. Visibility varying between 100 and 1,000 yards.
0505 (K) SJ radar out of commission. (See defects).
0513 (K) Trim dive.
0525 (K) Surfaced.
0629 (K) SJ radar back in commission.
1200 (K) Posit.
    Lat. 44° 32.3' N.
    Long. 148° 03.5' E.
1757 (K) SJ radar out of commission. (See defects).
1942 (K) SJ radar back in commission.
18 August 1945
0521 (K) Trim dive.
0532 (K) Surfaced.
1200 (K) Posit.
    Lat. 44° 35.7' N.
    Long. 148° 16.4' E.
1700 (K) Fog lifted. Visibility opened for a short time to about 5 miles.
1837 (K) Fog closed in. Visibility varying between 100 and 1,000 yards.

19 August 1945
0325 (K) Fog commenced to lift. Visibility gradually opened to about 5 miles.
0522 (K) Trim dive.
0530 (K) Surfaced.

— page 228 —
1148 (K) Fog closed in again.
1200 (K) Posit.
    L.t. 440 24.2' N.
    Long. 1470 49.7' E.
1528 (K) Fog lifted. Visibility 5-7 miles.
2100 (K) For closed in from north and east.
20 August 1945
    Surface patrol off ETOROFU. Fourth day of heavy fog.
0524 (K) Trim dive.
0533 (K) Surfaced.
0940 (K) Decoded ComSubPac dispatch to Polar Circuit concerning Japanese reports of a larding on SHIMUSHU Island. Dispatch directs acknowledgement and report from all boats as to whether or not involved.
1150 (K) Transmitted TUSKAILUNKE Serial Three to ComSubPac acknowledging this dispatch and reporting not involved.
1200 (K) Posit.
    L.t. 440 23.4' N.
    Long. 1470 51.0' E.

21 August 1945
    Patrolling off ETOROFU.
0526 (K) Trim dive.
0535 (K) Surfaced.
1200 (K) Posit.
    L.t. 440 22.9' N.
    Long. 1470 48.0' E.

1517 (K) Sighted small craft through high periscope bearing 0350 T distant about 8 miles on westerly course.
1625 (K) Sighted small tugcraft through high periscope bearing 3250 T distant about 8 miles. Lugger also on a westerly course. Avoided. (Ship Contact #4).
1600 (K) Sighted small fishing craft on southerly course bearing 1090 T distant about 9 miles. Avoided. (Ship Contact #5).

22 August 1945
    Patrolling off ETOROFU.
0524 (K) Trim dive.
0534 (K) Surfaced.
1200 (K) Posit.
    L.t. 440 29.0' N.
    Long. 1470 51.0' E.

2130 (K) Decoded ComSubPac Serial Five Zero informing us we are to be one of a group of submarines participating in Japanese surrender in Tokyo Bay on 31 August. Message assigns rendezvous northeast of Tokyo on 28 August and directs Commander BASS in RUNNER to coordinate movements of boats after rendezvous.

23 August 1945
    Patrolling off ETOROFU.

— page 229 —
0032 (K) Transmitted LUSKAULUCE Serial Four to ComSubPac
acknowledging Serial Five Zero.
0520 (X) Trim dive.
0532 (X) Surfaced.
0600 (X) Set all ship's clocks back one hour to ninus nine
zone time.
1200 (I) Posit.
Lat. 440 21.7' N.
Long. 1480 42.6' S.

24 August 1945
Patrolling off ETOROFU.
0504 (I) Weak APR contact 260 megacycles 1300 pulse rate.
0521 (I) Trim dive.
0530 (I) Surfaced.
1200 (I) Posit.
Lat. 440 21.5' N.
Long. 1470 49.0' E.

1236 (I) Momentary APR contact 255 megacycles 1250 pulse rate.
25 August 1945
Patrolling off ETOROFU.
0522 (I) Trim dive.
0532 (I) Surfaced.
1200 (I) Posit.
Lat. 440 08.5' N.
Long. 1480 03.8' E.

1225 (I) Test fired 5', 40 mm and .50 caliber guns.
1920 (I) SD radar out of commission. (See defects).
2000 (I) Set course for rendezvous in accordance ComSubPac
Serial Five Zero.

26 August 1945
Surrogate rendezvous with submarines participating in
Japanese surrender in Tokyo Bay in accordance ComSubPac
Pac Serial Five Zero.
0102 (I) SJ radar out of commission. (See defects).
0400 (I) SJ radar back in commission.
0517 (I) Trim dive.
0528 (I) Surfaced.
0800 (I) Fog and rain set in. Visibility varying between 1,000
and 5,000 yards.

1200 (I) Posit.
Lat. 430 10.1' N.
Long. 1470 05.8' S.

1800 (I) Received ComSubPac Serial Six Seven postponing rendezvous
ezvous fourty eight hours.
1506 (I) Reversed course to return to patrol area off ETOROFU.
1840 (I) Decoded ComSubPac Serial Six Five giving new rendezvous instructions, name of escort, and routing
instructions to SICAN from rendezvous point.

- 16 -

— page 230 —
1945
C-O-N-P-I-D-3-N-T-I-A-L
Report of Seventh War Patrol

1841 (I) SJ radar out of commission. (See defects).
1850 (I) SJ radar back in commission.
1955 (I) SD radar back in commission.
2000 (I) Commentary APR contact 255 megacycles 1500 PRF.
27 August 1945
Returning to Patrol Area off ETOROFU encountering heavy fog and intermittent rain.
0520 (I) Trim dive.
0530 (I) Surfaced.
0650 (I) TDM out of commission. (See defects).
1115 (I) TDM back in commission.
1200 (I) Posit.

Lat. 44° 10.6' N.
Long. 148° 15.0' E.

1900 (I) Reversed course, heading south for rendezvous northeast of TOKYO in accordance ComSubPac Serial Six Five.
2010 (I) TDM tracer out of commission. (See defects).
2040 (I) TDM back in commission.
28 August 1945
Enroute rendezvous with submarines participating in Japanese surrender in Tokyo Bay. Weather still foggy with visibility 500 to 1,000 yards.
0504 (I) Fog commencing to lift. Visibility about 5,000 yards.
0520 (I) Trim dive.
0533 (I) Surfaced.
0700 (I) Fog has cleared with visibility now about 8 miles.
1200 (I) Posit.

Lat. 43° 10.3' N.
Long. 147° 03.0' S.

1310 (I) With SHIKOTAI TO board 332° T distance 60,000 yards by SJ radar set course for rendezvous point.
1338 (I) Crossed southern boundary of area CLUBGAR heading south.
1533 (I) Momentary APR contact 245 megacycles 1500 PRF.
1940 (I) TDM tracer unit out of commission. (See defects).
2000 (I) TDM tracer back in commission.
29 August 1945
Enroute rendezvous northeast of TOKYO.
0225 (I) Picked up radar interference on the SJ radar bearing 1930 T.
0230 (I) Received on WOFACO frequency a contact report from SQUINDO addressed to ComSubPac with QUEND signal requesting retransmission of message to radio CUAM. Message stated that SQUINDO was trailing a Jap submarine on westerly course 180 miles south of us.
0240 (I) Exchanged recognition signals and calls with U.S.S. RAZORLICK by SJ radar.
0315 (I) Transmitted SQUINDO contact report to MEN. This message was SQUINDO fourth to ComSubPac.

- 17 -

— page 231 —
0330 (I) Fog set in reducing visibility to about 500 yards.
: 0335 (I) Lost SJ radar interference from RAZORBACK on bearing 153° T.
: 0527 (I) Trim dive.
: 0535 (I) Surfaced.
: 0730 (I) Decoded SEGUNDO fifth to ComSubPac reporting that Jap submarine which they have been trailing has surrendered to them.
: 0749 (I) Fog lifting with visibility opening to 6 miles.
: 1200 (I) Posit.
   - Let. 40° 31.5' N.
   - Long. 145° 16.0' N.
: 1311 (I) Picked up interference on SJ radar from another SJ bearing 235° T.
: 1930 (I) Exchanged recognition signals and calls with U.S.S.
   - HADDO by SJ radar.
: 1945 (I) Picked up SJ radar interference bearing about 185° T and exchanged recognition signals and calls with U.S.S. RUMBLE.
: 2018 (I) Picked up distant radar interference from another SJ on bearing 0050 T.
: 2045 (I) Lost above radar interference from PADDO and RUMBLE on bearing 2250 T.
: 2250 (I) Lost radar interference from HADDO and RUMBLE on approximate bearings 235° T and 185° T.

30 August 1945
: 0020 (I) Enroute rendezvous.
: 0107 (I) Exchanged recognition signals and calls with U.S.S. RUMBLE.
: 0500 (I) Lost radar interference from RAZORBACK on bearing 235° T.
: 0520 (I) Trim dive.
: 0603 (I) Surfaced.
: 1015 (I) Reached rendezvous and commenced contacting various submarines forming TOKYO BAY Group (Shenry Peacemakers and U.S.S. DDCX our escort.
: 1113 (I) Sent alongside U.S.S. RUMBLE and received Operation Order.
: 1200 (I) Posit.
   - Let. 37° 45' N.
   - Long. 143° 21.7' N.
: 1225 (I) Took prescribed station in port column of cruising disposition in company with U.S.S. HADDO our escort and following submarines: U.S.S. RUMBLE, GATO, SEACAT, TIGRICE, ACHERISIS, CAVALLA, RAZORBACK and HADDO.
: 1725 (I) Four friendly PGF fighter planes passed over formation.
: 1725 (I) Lost above aircraft from sight on bearing 144° T.

— page 232 —
2157 (I) Radar contact on two friendly ships bearing 1250 T distance 20,000 yards. Ships tracked on about a parallel course at 21 knots.

31 August 1945
: 0350 (I) Commenced sighting numerous friendly vessels in vicinity of entrance SAGAMI. AN.
: 0525 (I) U.S.S. WREN with PILOTFISH and MAKE in company joined formation. WREN reeled MADDOX as our escort into SAGAMI WAN.
: 1203 (I) Moored port side to outboard of U.S.S. CAVALLA in submarine nest alongside starboard side U.S.S. PROTES in berth Fox 83, Tokyo harbor, Japan.
: 1424 (I) Underway from alongside PROTES. Tander and all submarines shifting to berth off Yokosuka Submarine Base, Yokosuka, Japan.
: 1735 (I) Moored portside to outboard of U.S.S. ARCHERFISH in submarine nest alongside starboard side of U.S.S. PROTES in berth off Yokosuka Submarine Base, Yokosuka, Japan.

1-2 September 1945
: 0947 (I) Made TOKYO JAX trim dive.
: 1007 (I) Surface.
: 1010 (I) Took station in column formation of eleven submarines proceeding out of Tokyo Bay enroute Pearl Harbor. Other submarines are U.S.S. RUNNER (OTC), CAVALLA, PILOTFISH, MAKE, G.TO, A.CHERFISH, NAZORAMON, TITANON, HADDO, SEGUNDO.

1200 (I) Posit.
: Lat. 34° 47' N.
: Long. 139° 20' E.

1312 (I) Took departure on NOLIMA. SAKI light bearing 310° T distance 11 miles.

4 September 1945
: 0200 (I) Set ship's clocks ahead one hour to zone (-10) time.
: 1200 (K) Posit.
: Lat. 33° 29.51' N.
: Long. 146° 56.01' E.

5 September 1945
: 0840 (K) Trim dive.
: 0847 (K) Surface.
: 1200 (K) Posit.
: Lat. 32° 21.01' N.
: Long. 154° 05.01' E.

2130 (K) Set ship's clocks ahead one hour to zone (-11) time.

— page 233 —
6 September 1945
1200 (L) Posit.
Lat. 31° 11.0' N.
Long. 161° 19.6' E.

7 September 1945
0540 (L) Trim dive.
0546 (L) Surfaced.
1200 (L) Posit.
Lat. 290 46.5' N.
Long. 168° 31.0' E.

2103 (L) U.S.S. TANK took departure from formation enroute
MIDWAY.

8 September 1945 (Last Longitude)
0400 (L) Set ship's clocks ahead one hour to zone (-12) time.
1200 (L) Posit.
Lat. 280 31.0' N.
Long. 175° 34.5' E.

8 September 1945 (West Longitude)
0930 (Y) Trim dive.
0940 (Y) Surfaced.
1200 (Y) Posit.
Lat. 270 12.4' N.
Long. 176° 28.0' W.

2325 (Y) Sighted running lights of a ship on westerly course
bearing 0530 T and exchanged calls with U.S.S. HENRICO.

9 September 1945
0015 (X) Sighted running lights of unidentified ship bearing
3150 T distant about 12 miles.
1200 (Y) Posit.
Lat. 240 12.3' N.
Long. 173° 57.5' W.

2000 (Y) Set ship's clocks ahead one hour to zone (plus 11) time.
10 September 1945
0110 (X) U.S.S. HANK rejoined formation.
0317 (X) Trim dive.
0828 (X) Surfaced.
1200 (X) Posit.
Lat. 220 15.0' N.
Long. 168° 10.5' W.

11 September 1945
1200 (X) Posit.
Lat. 210 02.0' N.
Long. 162° 21.2' W.

12 September 1945
0000 (X) Set ship's clocks ahead one hour to zone (plus 10) time.
0645 (W) Set ship's clocks ahead one half hour to zone
(plus 9) time.

0657 (W) Made rendezvous with PC-485 our escort.
0956 (W) Moored Submarine Base, Pearl Harbor, T. H.

- 20 -

— page 234 —
0-N-F-I-D-E-N-T-I-A-I
Report of Seventh War Patrol

(C) WEATHER:
Weather conformed in general with current information. The entire patrol was spent along the KURILE chain where medium to heavy fog was encountered about 80% of the time. Visibility was subject to rapid and frequent change, averaging about 1,000 yards while in fog. Temperature ranged between about 38°F, and 55°F. Seas were calm and very little wind was encountered during our stay in patrol area.

(D) TIDAL INFORMATION:
A southerly set of about 0.6 knots at all times was encountered on the eastern side of the KURILE chain when within about 25 miles of the chain.

(E) NAVIGATIONAL AID:
No navigational aids were sighted. When within 25 miles of the chain, radar fixes obtained were accurate to about 3 miles. Occasional visual fixes on peaks were obtained with excellent results. No celestial navigation was attempted or needed while in radar contact with land. Occasional soundings checked closely with those found on the charts. Little use was made of LORAN equipment due to extreme distance from nearest stations.

(F) SHIP CONTACTS:
| No. | Time Date | Lat. Long. | Type | Initial Range | Est. Course Speed | How Cont- acted | Remarks |
|-----|||------|||||
| 1.  | 8 Aug  | 46044°N 7 SE | 5600 | 0400T 6 kt | Radar | Missed with 4 Torpedoes Damaged 2 with Gunfire in fog. |
| 2.  | 13 Aug | 44044°N 1 SC | 16000 | 3450T 15 kt | Smoke (H.Peris) | Could not close. |
| 3.  | 21 Aug | 44049°N 1 See- | 15000 | 2900T 10 kt | (H.Peris) | Avoided. |
| 4.  | 21 Aug | 44043°N 1 Lug- | 15000 | 2550T 8 kt | (H.Peris) | Avoided |
| 5.  | 21 Aug | 44023°N 1 Fish- | 18000 | 1900T 6-8kts | (H.Peris) | Avoided |
|     | 1800(K)148055°E | ing Craft (Small) |

— page 235 —
5"/25
40 mm Fwd.
40 mm Aft.
50 Cal. Mchc. gun

5 H.C.
12 HETSD, 8 HE.
8 HETSD, 12 HETSD, 4 AP.

The 5" gun was fired in local control because of the point blank range and the reduced visibility. Firing range was about 350 yards. Pointer and tricorder on 5" gun could not see target through telescopes due to fog which necessitated use of open sights.

Open sights on both 40 mm's and 5" were set on zero range and deflection. Short range constituted no fire control problem. 40 mm guns opened up in "Slow Fire" and after first shots were shifted to "Automatic". Fire of 40 mm guns was highly accurate and a high percentage of hits resulted. However, total damage inflicted was impossible to accurately determine due to the heavy fog.

Of the four 50 caliber guns two were mounted on either side of ship to guard against possibility of surprise. One starboard gunner fired 45 rounds at target before gun jammed. Other gunner was hit by enemy fire before any rounds had been fired from his gun.

— page 236 —
U.S.S. MUSKALLUNGE
Report of Seventh War Patrol

(H) ATTACK DATA: (Cont'd).
U.S.S. MUSKALLUNGE Torpedo Attack No. 1 Patrol No. 7
Time: 1305 Date: 8 August 1945 Lat. 46° 40.5' N.
Long. 151° 41.5' E.

Target Data - Damage Inflicted.

Description:
The convoy consisted of seven seastrucks similar to type illustrated on page 31 A/C HORRAC No. 674.
Contact was made by SJ radar at a range of 5,600 yards with visibility varying from 1,000 to 3,000 yards.
Connected tracking on the surface. As visibility increased to 6,000 yards targets were seen to be in two columns, a starboard column of four ships and a port column of three ships.

Ship(s) sunk: None
Ship(s) damaged: None or probably sunk.

Damage Determined By: No damage inflicted.

Target Draft 6' Course 45° TCG Speed 6 Range at firing 500 yds.

Own Ship Data
Speed 4 kts. Course 310° TCG Depth 63° Angle 0 (at firing)

Fire Control and Torpedo Data.

Type Attack:
The initial stage of the attack was made on the surface, tracking with SJ radar ranges and bearings. The final stages was made submerged using ST radar ranges.
Torpedoes were fired with a depth setting of two feet, small gyros and zero spread.

— page 237 —
1942
U.S.S. ILLUMINEE
Report of Seventh War Patrol

ATTACK DATA: (Cont'd).

TORPEDOES FIRED 8 AUGUST 1942

Tubes Fired #3 #4 #5 #6
Track Angle 73 75 83 99
Gyro angle 12 L 10 L 2 L 14 R
Depth Set 2' 2' 2' 2'
Power High High High High
Hit or Miss Miss Miss Miss
Arrest No No No No
No of Torpedo 14-3A 14-3A 14-3A 14-3A
Serial No. 66753 24861 64404 66623
MK Exnlder 6-5 6-5 6-5 6-5
Serial No. 25087 19386 12206 1542
Actuation Set Contact Contact Contact Contact
Actuation Actual 16-4 16-4 16-4 16-4
Serial No. 15598 19782 15957 15976
Explosive Torpex Torpex Torpex Torpex
Firing Interval 0 1.8 1.7 2.7
Type Spread None None None
Sea Conditions Calm Calm Calm Calm
Overhaul Activity USS GRIFFIN GRIFFIN GRIFFIN GRIFFIN

Remarks - All torpedoes heard to run toward bearing of target.
No explosions heard. Torpedoes believed to have under-
run due to shallow draft and close range of target.

- 24 -

— page 238 —
1. MINES:
No mines nor minelaying operations encountered.

(J) ANTISUBMARINE MEASURES AND EVASION TACTICS:
No active antisubmarine measures encountered.

(K) MAJOR DEFECTS AND DAMAGE:
HULL AND MACHINERY:
Engineering:

On 3 August at 3252.2 engine hours the outboard exhaust valve of #3 main engine failed to close on a dive and #3 main engine flooded. Lube oil was renewed. Inspection showed no damage to engine. Examination of exhaust valve operating gear showed that the cutter pin, holding the nut on the pin in after end of the linkage bar to exhaust valve flapper, had sheared off allowing nut to fall in linkage. This prevented valve from closing. Cutter pin was renewed and valve tested satisfactorily. Operating gear on outboard exhaust valves of #1, 2 and 3 main engines was inspected and found in satisfactory condition. On 6 August at 3319.4 engine hours the outboard exhaust valve of #3 main engine again failed to close on diving, again flooding #3 engine. Lube oil was again renewed. Inspection showed no damage to engine. Inspection of outboard exhaust valves of #1, 2 and 3 main engines was renewed. The engine was removed and the mechanical submersible was removed. The engine was replaced and the submersible was replaced. The engine was

— page 239 —
1. MAJOR DEFECTS AND DAMAGE: Cont'd).
HULL AND MACHINERY:
Electrical:

On 10 August the speed regulator of #2 lighting motor generator failed allowing lighting motor generator to overspeed and causing a temporary excessive voltage. Several lights and fuses were burned out but no other damage resulted. This casualty had occurred previously during last refit and was believed remedied. Examination showed brush in speed regulator to be slightly chipped. Brush was renewed and speed regulator is now believed to be operating properly. However, due to the unpredictable nature of this casualty generators has since been temporarily manually regulated.

C & R:
H.P. Air Compressor:

1. August 1945 - "First stage discharge valve disc broke and fell into first stage cylinder. Took cylinder head off and found piece of valve disc partially imbedded in head, removed piece, reassembled head, ran test on compressor, operation satisfactory.

Wardroom Refrigerator:

Machine was subjected to high voltage just prior to leaving on patrol. Removed compressor to tender for overhaul. Renewed suction and discharge valves on compressor. Renewed #1 belt, renewed oil in crank-case (Navy Symbol 2135), recharged system. After leaving on patrol plant was found to be not refrigerating. Found several leaks, eliminated same. Found faulty expansion valve, renewed same. Evacuated system of air and recharged flask. Operation satisfactory.

Hydraulic Cylinder Number Two Periscope:

8 August 1945 - The starboard hydraulic cylinder for number two periscope was holed by two 30 caliber bullets during a battle surface. Hydraulic valves leading to and from number two periscope were closed to prevent possibility of salt water entering the hydraulic system. Renewal of hydraulic cylinder will be necessary to effect repairs.

Ice-Cuber and Ice-Cream Maker Crew's Mess:

7 August 1945 - This plant was also subjected to high voltage prior to leaving on patrol. Damage done; solenoid coil was burned out. Renewed same, plant now operating properly.

— page 240 —
1945 - During refit worm wheel and worm gear were found to be worn about one-eighth of an inch. Renewed both worm wheel and gear. Renewed oil with Navy Symbol #2190. During patrol on 14 August found gears binding and smoking. Renewed oil with a lighter oil (Navy Symbol #2135) in view of cold weather conditions and discontinued rigging planes on fifteen degrees dive. No further trouble apparent, although complete inspection and check of alignment should be made during refit.

ORDINANCE:
Some difficulty was experienced initially in obtaining correct headspacing on the 53 caliber machine guns. This incorrect headspacing was obtained with the headspace gauge in position by not retracting the charging lever enough to relieve the bolt driving spring pressure. It was also found necessary to readjust recoil buffer plates due to the considerable change in temper ture encountered in patrol area. One firing pin spring failure was experienced after approximately 2,000 rounds had been fired from the gun.

(L) MUTE:
All radio equipment operated normally with the following exceptions:
The TBL-6 on 9 -August failed to tune properly on 0470 kcs. On examination it was found that during the 1-2st refit the turbine circuit units (variable capacity and inductances) had been reassembled mechanically 1300 out of proper relationship, result being that capacity decreased as inductance increased and vice versa. This condition became apparent only on the harmonics of 4235 kcs.
Occasional trouble was still experienced as a result of the severe salting of TBL-6 on last patrol.
The 7 1/2" operating set satisfactorily with the exception that the spinners in Press-to-Talk switches failed on four occasions.
Four transmissions were made from the area with good results in each case. Bear day time frequency was 12705 kcs and best at night was 4235 kcs. All traffic was cleared in a reasonable time. (Transmission Log is Included).
No trouble was experienced in copying the submarine schedule. 6045 kcs was used from 2000(K); 9090 was used a great deal day and night. 16730 kcs was very dependable for daytime reception.

— page 241 —
092332 160210 200108 221332 *281755 261600

* Service transmission for SEGUNDO fourth to ComSubPac.

(RADAR: SJ-1)

The SJ was operated almost constantly during patrol due to fog. Maintenance was influenced by the desirability of keeping gear running until a break in the weather made securing it feasible. A proper interference exists between the TDC and SJ and has not been tracked down. When the TDC is turned on, the radio operator receives a signal from the radar, which is then transmitted to the ship. Since the voltage on the I.C. generator stays up it is difficult to maintain any connection between the TDC and the radio. The main line fuse circuit caused trouble by heating up due to contact resistance between the clip and the lug to which the line is soldered. This caused fuses to burn out at the clip. By tightening the holding screw down hard it is possible to remedy this trouble, but the screw always loosens. Since this is not an uncommon trouble it is recommended that a clip be installed to which the line can be secured directly, doing away with the contact resistance.

July 31 - August 2: Sensitivity had been low all during the training period, but was brought up before patrol with a time of 5,000 yards. Just before deaerture a bad T-N tube developed, and replacement would not bring back sensitivity. Two more T-N tubes, a used magnetron known to be good, new 717A's and even a new magnet were tried. A thorough transmitter circuit check disclosed an open R-36, the bias resistor for the 705A. Final tune-up regained sensitivity with a ring time of 5,900 yards.

- 28 -

— page 242 —
0-0-N-P-I-D-E-N-T-I-A-L
Report of Seventh War Patrol

August 17: The magnetron had shifted frequency and entire system was returned.
August 23: Magnetron had shifted frequency enough to warrant changing it. Then tuning up, beat oscillator would not tune in properly to frequency, and was replaced. The crystal - I.F. coax was also replaced due to intermittent ground.
Other troubles encountered were:
August 3: Hain line switch D3 arcing - replaced.
August 21: Range step jumped in 2,000 yard steps due to loss of signal through C522 which was grounded by a stray washer at its base. Renewal of w.sher remedied trouble.
August 24: Filament burned out on H.V. rectifier 836, burning out T-9 - replaced both.
August 26: Cassy 5U4 in "A" regulated rectifier. Replaced 5U4 and blown T-9.
Ranges of 90,000 yards were consistently obtained on 5,000 foot peaks, indicating satisfactory operation when sensitivity was finally gained.

ST:
The ST operated satisfactorily. No troubles were encountered.

SD-2:
The transmitter tubes were changed when excessive current was indicated, and the transmitter returned. Ranges of 35 miles on 5,000 foot peaks were obtained. The only plane contact was at 7 miles.
Trouble was experienced when lighting motor generator speed-regulator failed in pressing high voltage on indicator power supplies. A fuzzy trace and intermittent tubes brought no change. A resistance check showed that bleeder network for H.V. power supply was low; one megohm astigmatism potentiometer modification was open; filter condensers were apparently all right. All were replaced with a resulting inferior trace of variable characteristics. After further replacement, repetition of measurement and frustration, C265 in the L.V. power supply remained as the only logical culprit. Apparently the spares were no better than the original. By pulling it rapidly after operation it was found to have a low resistance when warm. A 2x10 mfd. condenser from the JT-1 spares and a 4 mfd. condenser from the RCS spares were tried in place of C265 A, B, and C. Gratifying results were obtained with a better looking trace than previously.

AFR-SPA:
The only fault that developed was in the SPA power transformer when the H.V. coil was burned out and opened. The transformer was replaced.

— page 245 —
0-0-N-F-I-D-E-N-T-I-A-L

(U) COMMUNICATIONS, RADAR, AND SONAR COUNTERMEASURES:

Return Countermeasures:

A continuous watch was kept on the APR-SPA during patrol using unit TN-2. Operation was satisfactory. Possible enemy contacts are listed below:

| DATE | LAT. | FREQ. | P.R.F. | PULSE WIDTH | REMARKS |
|------|------|-------||||
| 7 Aug | 46006'N | 152   | 200-300 | 8          | Very weak. Intermittent keying possible Jap Airbase. |
| 8 Aug | 48000'N | 105   | 300     | 12         | Very weak. Land based air search. Sweeping slowly. |
| 9 Aug | 47016.5'N | 195   | 760     | 5-7        | Strong. Land based Air search. Sweeping by hand or keying. |
| 24-27 Aug | 115(2) | 255   | 1250    | 2         | Weak. Contacted several times momentary transmission. |

Communications Countermeasures:

No jamming was experienced which interfered with copying of Sub Fax. However, Japanese code was heard frequently on the WOFACO frequencies. In addition KFS press station 12550 loc was jammed frequently by C.W. The strength of this jamming signal occasionally reached strength five. This jamming occurred even more frequently after the cessation of hostilities. No trouble from enemy countermeasures experienced during transmissions.

Sonar Countermeasures:

None.

(V) REMARKS:

None.

— page 246 —
1. The Commander Submarine Division ONE HUNDRED THREE.
To: The Commander-in-Chief, United States Fleet.
Via: (1) The Commander Submarine Squadron TEN.
(2) The Commander Submarine Force, Pacific Fleet, Administration.
(3) The Commander-in-Chief, U. S. Pacific Fleet.

Subject: U.S.S. MUSHALIUNG (US262) - Report of Seventh War Patrol.

1. The Seventh War Patrol of the U.S.S. MUSHALIUNG was conducted in the KURILE ISLAND-SEA of CHICAGO area during the period 31 July 1945 to 12 September 1945 under the command of Commander H. H. LIEBHOLD.

2. The patrol was spent primarily on lifeships. Few ship contacts were made, but all were aggressively pursued. On 6 August 1945 several small sea trucks were contacted and a daylit submarine approached 500 yards, in varying visibility. Four torpedoes were fired at a range of 500 yards, of which missed undoubtedly due to short range and torpedoes under running targets. When it became apparent that another torpedo attack could not be conducted a battle surface was made and the range closed to 350 yards before firing fire with 50 cal., 20mm. 40mm and five inch, due to low visibility. The fire line gun made no direct hits due to poor jamming. The necessary of using open sights. Some damage was done by smaller calibers. The accuracy of the sea trucks gun fire caused damage to the U.S.S. MUSHALIUNG and finally wounded electricians mate t.ird class, C. H. HITTMAN, who was running a 50 caliber machine gun on the engaged side. Due to the accuracy of fire of the sea trucks and the poor visibility the commanding officer decided to break off the engagement.

3. It is with extreme regret that we must report the loss of another excellent submariner whose loss will be felt throughout the submarine service. Electricians mate Third Class, C. H. HITTMAN was buried at sea on 8 August 1945.

4. The MUSHALIUNG spent 21 days in their assigned area and then upon the unconditional surrender of the Japanese was ordered into Tokyo Bay for three days during the signing of the surrender terms.

5. The Administrative Division Commander congratulates the commanding officer, officers and crew of the MUSHALIUNG for the damage inflicted upon the enemy and upon return from their last war patrol.

— page 247 —
1/3/46
Care of Fleet-Post Office
San Francisco, California.
17 September 1945.

FC5-10/416-3
Serial: ( 0309 )
COFIDENITIAL

SECOND ENDORSEMENT to
U.S.S. MUSALLIUNG (SS262) -
Report of War Patrol
Number Seven.

From: The Commander Submarine Squadron TEN.
To: The Commander-in-Chief, United States Fleet.
Via: (1) The Commander Submarine Force, F.A.CIFIC FLIGHT, Administration.
(2) The Commander-in-Chief, U. S. P.A.CIFIC FLIGHT.

Subject: U.S.S. MUSALLIUNG (SS262) - Report of War Patrol
Number Seven.

1. Forwarded, concurring in the remarks of the Commander Submarine Division ONE HUNDRED THREAD.

2. The Squadron Commander congratulates the Commanding Officer, officers and crew of the U.S.S. MUSALLIUNG upon the completion of that vessel's Seventh War Patrol. The tragic loss of Charles H. WHITAKER M3O is most sincerely regretted.

3. It is recommended that the U.S.S. MUSALLIUNG be credited with the following:

DRAFTED
2 Wooden Sea Trucks (EU) 400 tons
Total Damaged 400 tons

G. PUTNAM
J. PETERSON.

— page 248 —
10(A)/A16-6(18) SUBMARINE FORCE, PACIFIC ISLAND
Serial 02381
CONFIDENTIAL
THIRD REPORT TO
MUSKALLUING REPORT OF
Seventh War Patrol.

COMMSUSPAC PATROL REPORT NO. 916
U.S.S. MUSKALLUING - SEVENTH WAR PATROL.

From: The Commander Submarine Force, Pacific Fleet.
To: The Commander in Chief, United States Fleet.
Via: The Commander in Chief, U.S. Pacific Fleet.

Subject: U.S.S. MUSKALLUING (SS862) - Report of Seventh War Patrol (31 July to 12 September 1945).

1. The seventh war patrol of the U.S.S. MUSKALLUING, Commander W. H. Lawrence, U.S. Navy, commanding, was conducted in the vicinity of the Kuril Islands.

2. There were but two contacts with enemy vessels before the capitulation of Japan. The first, a group of seven sea troups, was inconclusively engaged by torpedoes and deck guns. The second, the second contact, probably a PG, could not be closed. Except for return fire from ships attached there was no enemy opposition, MUSKALLUING was available for lifeguard duty but fortunate no aircraft were downed.

3. The award of the Submarine Combat Insignia for this patrol is not authorized.

4. MUSKALLUING was one of the submarines present at the formal surrender of the Japanese Empire, a fitting climax to the wartime career of a fighting ship.

5. The Commander Submarine Force, Pacific Fleet, offers his sympathy to the ship's company on the loss of one of their number and congratulates the commanding officer, officers, and men on the completion of this patrol during which the following demerits were inflicted on the enemy.

2. M.S. (Sea Trunk) (EU)
TOTAL DRAUGHTED
- 400 tons (Gun Attack No. 1)
- 400 tons

G. C. CRALFORD,
Chief of Staff.

— page 249 —
912-10(A)/A16-3(18) SUBMARINE FLEET, PACIFIC FLEET
Serial 02381
Confidential
TELEDOCUMENT TO
MUSKALLUNGE Report of
Seventh War Patrol.
CONSULAR PATROL REPORT NO. 916
U.S.S. MUSKALLUNGE - SEVENTH WAR PATROL.
Subject: U.S.S. MUSKALLUNGE (SS262) - Report of Seventh War Patrol
(31 July to 12 September 1945).

DISTRIBUTION:
(Complete Reports)
Cominch (7)
Comcowespec (1)
Comcowespec (

— page 250 —
1.0 1.1 1.25 1.4 1.6
: 2.0 2.5 2.2 2.6 2.0 1.8 1.25 1.4 1.6

THIS MICROFILM IS
THE PROPERTY OF
THE UNITED STATES
GOVERNMENT

MICROFILMED BY
NPPSO—NAVAL DISTRICT WASHINGTON
MICROFILM SECTION

D-52254