U.S.S. SEALION (SS-315) — war patrol report SS-315_SEALION.pdf

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START OF REEL
JOB NO. [HANDWRITTEN: H-108]

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OPERATOR [HANDWRITTEN: L. Frye]
DATE [HANDWRITTEN: 9-10-80]

THIS MICROFILM IS
THE PROPERTY OF
THE UNITED STATES
GOVERNMENT

[STAMP: DEPARTMENT OF DEFENSE, UNITED STATES OF AMERICA]

MICROFILMED BY
NPPSO-NAVAL DISTRICT WASHINGTON
MICROFILM SECTION

REEL TARGET - START AND END
NDW-NPPSC-5210/1 (6-78)

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[HANDWRITTEN: NRS 1976-97]

[HANDWRITTEN: SEALION (SS-195/SS-315)]
[HANDWRITTEN: WORLD WAR II:]
[HANDWRITTEN: PATROL FILE]
[HANDWRITTEN: ACTION REPORTS]

[HANDWRITTEN: ALL MATERIAL ON THIS REEL IS DECLASSIFIED]

[HANDWRITTEN: FOR DECK LOGS SS-315 MARCH 1944 - JUNE 1945]
[HANDWRITTEN: CONSULT NATIONAL ARCHIVES WHICH HAS CUSTODY.]

[HANDWRITTEN: J.A. KOONTZ]

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Division of Naval History
Ships' Histories Section
Navy Department

HISTORY OF USS SEALION (ASSP 315) (EX. SS 315)

Japanese hopes for victory in World War II were based on a speedy conquest
of the rich islands of the Pacific. They then hoped to use supplies from their
seized "empire" to fight a long war, ending in a negotiated peace. Aided by
control of the sea after Pearl Harbor, she soon had possession of these prizes
but found, to her dismay, that she could not fully utilize it. Only a small
amount of the oil production got through to the Japanese home islands, because
the United States submarine force, largely discounted in pre-war Japanese
thinking, cut Japan's long lines of supply, sinking her merchant shipping
faster than she could build new bottoms.

One the the stalwarts among these silent grey warriors was the USS
SEALION (SS 315). For the six patrols which she completed the submarine was
awarded the Presidential Unit Citation, which credited her with sinking or dam-
aging more than 98,297 tons of emeny shipping, avenging the loss of her name-
sake.

The SEALION was the second vessel so named for a species of large,
eared seals, natives of the Pacific Ocean.

The first SEALION (SS 195) was built by the Electric Boat Co., Groton,
Connecticut, where the keel was laid on 20 June 1938. At the launching on 25
May 1939, the submarine was christened by Mrs. Claude C. Bloch, wife of Admiral
Bloch, USN, Commander-in-Chief of the U. S. Fleet. She was commissioned on 27
November 1939, and upon completion of shakedown cruise joined the Asiatic
Fleet. At the time of the infamous attack on Pearl Harbor, 7 December 1941 the
SEALION was undergoing overhaul at the Cavite Navy Yard, Manila. Three days
later, on 10 December 1941, the Japanese onslaught struck Manila. When the
air-raid alarm split the quiet with its banshee wail, the SEALION's skipper,
Lieutenant Commander R. G. Voge, and a number of the crew were on the bridge.
The planes droned overhead, and the bombs came down. The blasting shook Machina
Wharf, and Commander Voge ordered the bridge cleared. A few minutes later the
planes made another run, and two bombs struck the SEALION almost simultaneously.

One struck the after end of the conning-tower. The explosion wrecked the
main induction, the battery ventilation and the after conning-tower bulkhead,
and completely demolished the machine-gun mount which had just been vacated.
Bomb fragments ripped through the submarine's pressure hull. An instant later,
the second bomb smashed through the SEALION's main ballast tank and pressure
hull, exploding in the maneuvering space in the after end of the engine room.
The room flooded immediately, and the SEALION settled by the stern and for-
ward torpedo-room and forward engine-room, water surged in through holes ripped
in the bulkheads. As the submarine settled, those of the crew still living
escaped through the hatches which were still above water. With a list to star-
board, the SEALION sank by the stern and finally came to rest on the bottom
with about half of her main deck submerged.

Several days later, divers cut a hole aft of the conning tower, and
entered the flooded submarine. All motor controls, reduction gears and main
motors were wrecked, totally immobilizing the ship. The bombing which wrecked

— page 4 —
-2- USS SEALION (ASSP 315)

The SEALION also obliterated the Cavite Navy Yard, so with the nearest facilities
at Pearl Harbor, the SEALION's case was hopeless. To prevent her from falling
into enemy hands, all radio and sound gear was removed, and depth charges were
rigged in her compartments. On Christmas Day 1941 the charges were exploded,
and down went the SEALION; the first U. S. submarine lost in World War II.

The keel of the second SEALION was laid on 25 February 1943 at the
Electric Boat Company, Groton, Connecticut. Launched on 31 October of the same
year, the submarine was sponsored by Mrs. Emory S. Land, wife of Rear Admiral
Land. She was first commissioned on 8 March 1944; and with Lieutenant Com-
mander Eli T. Reich, USN, in command, hurried through her shakedown cruise and
headed for the Pacific.

On 8 June 1944 the sleek craft steamed out of Pearl Harbor for Midway
and her first war patrol. Topping off at Midway on the 12th, she headed for
the East China Sea via Tokara Strait, in company with the USS TANG. While
patrolling the channel between Kusakaki Shima and Kuro Shima, in the afternoon
of 23 June, an approach was made on a river gunboat. Three bow torpedoes were
fired. One passed directly under the target but failed to explode. The gun-
boat retaliated with twenty depth charges, but the SEALION escaped without damage.

Rendezvous was effected with the TANG and TINOSA on the 24th, and a
convoy contact message sent them racing to intercept. The convoy was never
picked up, but in the early morning of the 28th, the SEALION picked up a good
contact. Patrolling fourteen miles south of Tsushima Island, a medium freighter
and an enemy patrol boat were sighted on the horizon. When within range three
torpedoes were fired from the stern tubes. One hit and three minutes later only
a whirlpool remained in place of the 2,386 ton freighter SANSEI MARU. Thirty
depth charges were dropped by the patrol boat, but the SEALION was never picked
up. While patrolling northward of Shushi Gunto and Turoto two days later, she
sighted a sampan and began an approach. The sampan was demolished by gunfire,
and the five Japanese survivors left to shift for themselves.

After a week of inactivity, the submarine again got into action in the
early morning of 6 July 1944. Patrolling on the surface ten miles south of
Four Sisters Islands, her radar picked up two enemy ships. The SEALION closed
to 14,000 yards, then dived and continued her approach. It was now seen that
the ships were part of a convoy, and a large freighter was selected as the first
target. Four bow torpedoes were fired at this target, and two more at a medium
freighter astern of the first. All torpedoes missed the target, but another
medium freighter behind the second target, caught one torpedo. The SETSUZAN
MARU sank, stern first. Commander Reich swung his ship for a stern shot and
fired four torpedoes at an escorting destroyer. The destroyer zigged and the
torpedoes missed. The SEALION went deep, and crept from the area to the tune
of forty-five depth charges.

The submarine moved to the area between Shantung Peninsula and Korea,
and while patrolling on the surface in a dense fog late on the night of 10
July, made radar contact on an enemy freighter. Three bow torpedoes were fired,
scoring one hit. The target disappeared from the screen amid sounds of breaking
up. She then decided to head for home with two torpedoes remaining. Two hours
later another freighter was contacted. The stern torpedo was fired, but missed.

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-3- USS SEALION (ASSP 315)

The SEALION began a full speed chase. Just as the target loomed out of the fog
headed straight for the SEALION, the last torpedo leapt from the bow tube. Debris flew in all directions. Maneuvering radically, the SEALION slid by the
target, pouring 20 mm shells into the bridge. As she cleared the area, the
target was seen to slip beneath the waves.

The SEALION came under attack by a Japanese patrol plane on 15 July, but
evaded the attack without damage, arriving at Midway on the 21st after a very
successful maiden patrol.

The killer was ready for sea again on 17 August 1944, and entered her
patrol area, Convoy College in the Bashi Channel, on the 31st. She was now a
member of a coordinated attack group designated "Ben's Busters", along with the
GROWLER and the PAMPANITO. Her first chance for attack came on the first night
in the area. A high surface radar approach was made on a large, well escorted
convoy. Six torpedoes were fired, all running erratically. The SEALION then
swung and fired four stern torpedoes to sink a large tanker of the NIPPON MARU
class. Still surfaced, she successfully evaded the escorts and persistantly
tracked the convoy. Shortly before sunrise she was able to work her way
ahead of the convoy, and begin a submerged approach. This resulted in the sink-
ing of the 1,345 ton minelayer SHIRATA, and a 10,000 ton transport. A thorough
three hour depth charging followed, but damage was slight. Later the same day
a periscope approach was conducted on a small patrol craft. The last four
torpedoes in the forward nest were fired, but the target zigged and all missed.
Ten close depth charges rained down, but the SEALION escaped without damage, and
departed the area to replenish torpedoes and fuel.

After loading with torpedoes and fuel, the marauder put to sea again
from Saipan, to rejoin her wolf pack and continue her second patrol. On 6
September a convoy of six Japanese ships with five escorts left Singapore for
Japan. Crammed aboard the RAKUYO MARU were 1,350 English and Australian
captives being transported to slave in the Emperor's factories and mines. Of
the six large ships in the convoy, one was a heavily laden transport, another
was a large freighter carrying rubber and rice, and the remaining two were
loaded oil tankers. On the night of 12 September the convoy was proceeding
northward in three columns, three ships to a column. It was on this same night
that the SEALION rejoined the GROWLER and PAMPANITO.

Between 0100 and 0130 all three submarines contacted the convoy by
radar some 300 miles off Hainan. The submarine swung into action. At 0155 the
GROWLER began the show by attacking from the convoy's starboard side, putting
a torpedo into the HIRADO, the leading escort vessel on the starboard bow. The
frigate blew up amidships, burst into flames and sank within a few minutes. At
0224 Commander Reich drove the SEALION into attack on the convoy's starboard
side. In two minutes time, two torpedoes hit the passenger cargoman NANKAI
MARU in the center of the formation, another torpedo hit a large transport lead-
ing the right column, and two more hit the RAKUYO MARU. The Japanese aboard the
latter immediately abandoned ship. The unfortunate prisoners somehow got
free of the ship, and into the water. The NANKAI
MARU went down about an hour later, and RAKUYO MARU sank late in the afternoon.

Unaware that the ships carried allies, the submarines cleared the
immediate area. During the day, most of the Japanese were picked up by escorts,

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-4- [HANDWRITTEN: SS] USS SEALION (ASSP 315)

while the prisoners in the water were held at bay by rifles and pistols. By
nightfall the miserable men, abandoned, were swimming desperately, or clinging
helplessly to mats of wreckage. After sundown the prospect of survival seemed
slim indeed. But these castaways were to have an unexpected deliverance. On
the afternoon of the 15th, the PAMPANITO, passing through the waters where the
attack had been made -- discovered a crude raft loaded with men. She began
picking up survivors as fast as she could locate them, and sent a message to
SEALION asking for help. The two submarines combed the area, racing with dark-
ness. When no more men could be safely accommodated, the two headed full-speed
toward Saipan. Two other submarines were ordered to proceed to the area and
rescue the remainder. The SEALION had picked up 54 survivors, but four died
enroute. She departed Saipan for Pearl Harbor, arriving there on 30 September
for her refit.

The SEALION's third foray against the enemy began on 31 October 1944 as
she left Pearl Harbor for the area between the East China Sea and the northern
tip of Formosa. She engaged an armed trawler in a gun battle on 11 November
while enroute to her patrol area, but the engagement was broken off as a second
trawler entered the battle. There were no casualties to either side.

A few minutes after midnight on 21 November the SEALION was cruising on
the surface nosing into Formosa Straits, through whose protective confines all
Japanese shipping funneled. The sea was calm and there was no moon, for the
sky was overcast. All hands on the bridge was staring hard into the night.
Suddenly the radar screen flicked bright with three pips at extreme range so
the targets had to be unusually large to show. Commander Reich promptly headed
the submarine toward the targets. As the distance closed, more pips showed up,
now indicating four large ships in columns screened by three others. The two
middle ships were of battleship proportions, the other two would be cruisers,
and the screening ships destroyers.

It was a dark night, and the column was moving fast. The task force
felt secure from attack due to its position and high speed, and was not zigging.
So Commander Reich made the unusual decision to ambush the warships from the
surface. At 0146 the SEALION was on the enemy's starboard beam, slowly gaining.
As she bent all speed to get ahead, a night wind entered the approach problem
and she had to claw her way through rising seas. An hour later the submarine
was out in front and the second ship in column -- the nearest battleship --
was selected for the target. As she maneuvered into attack position the lead-
ing cruiser went to intervene. By then an escorting destroyer threatened to
This silhouette, dimly seen from the bridge, was the first visible contact
with the enemy task force -- until that moment the chase had been conducted
entirely by radar. Fearing the destroyer might overlap the battleship in line
of fire, the torpedoes were set for a lower depth. At 0256, as the destroyer
passed the lurking submarine, six torpedoes plunged toward the first battleship,
leaving not so much as a single bubble in their wakes. As the last shot left
the rudder was thrown hard right and the three stern torpedoes
were fired at the second battleship. Sixty seconds later several explosions
blossomed brightly crimson in the night -- three on the first ship, one on the
second. But that was all. They might have been fireworks for all the effect
on the Japanese formation.

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-5- USS SEALION (ASSP 315)

The SEALION ran westward at flank speed while the Jap destroyers charged
eastward in pursuit of ghosts. By 0310 the SEALION was 8,000 yards west of the
task force, and she slowed to parallel the enemy's course and rush a torpedo
reload. The warships were doing 18 knots, and apparently the hits had only
dented the armor belt on the battleships. Another attack was necessary. By
this time the sea had begun to build up, and solid water was breaking over the
bridge of the submarine. She put on maximum speed to overhaul the fleeing task
force, and held it until sparking commutators on the motors compelled her slow
down to full speed. At this pace the SEALION could do about 17 knots. An hour
passed, and a second one. Suddenly the first battleship veered out of forma-
tion, and began to slow down. Two destroyers dropped back to screen her.

By 0512 the SEALION was in attack position. She slowed and turned in
for the attack but it was not necessary as there was a tremendous explosion.
A flash of light, then again total darkness. So perished the veteran battle-
ship KONGO. She was the first and only battleship sunk by a submarine during
the Pacific War, and her loss struck a severe blow to the Japanese Navy.

The SEALION contacted another task force of one battleship and three
destroyers on the night of 26 November 1944, but was unable to attain favorable
attack position. She was forced to submerge in the bright moonlight and take
a long range shot which proved unsuccessful. One of the destroyers counter-
attacked with two very close depth charges, forcing the SEALION to the bottom
in 275 feet of water. She departed the area on 29 November, arriving at Guam
on 3 December for voyage repairs.

On 4 December 1944, Lieutenant Commander Charles F. Putman, USN, relieved
Commander Reich as commanding officer. On the 14th the SEALION departed Guam
on her fourth war patrol. December hunting was poor due to the scarcity of
Japanese targets; nevertheless, while patrolling in the South China Sea on
20 December the SEALION flushed a freighter and two escorts. The targets were
tracked from ahead until nightfall, when she came in for a night surface torpedo
attack. Six bow torpedoes were fired in a heavy sea to score four hits.
The 7,000 ton supply ship MAMIYA stopped dead in the water, but refused to sink.
Her escorts kept her well screened and dropped numerous depth charges while
the SEALION, still on the surface, maneuvered for the kill. After four and
a half hours she managed to gain a firing position. Three bow torpedoes were
fired to score two hits and sink the stubborn ship.

Just after midnight on 2 January 1945 the SEALION contacted a convoy
consisting of a medium transport and two escorting destroyers. It was a bright
moonlight night, and the SEALION was not able to gain a desirable position for
a surface attack due to the proximity of the destroyers. However, four stern
torpedoes were fired at long range at a destroyer and the overlapping transport.
The torpedoes missed and the destroyer took up the chase, but the SEALION
managed to evade still on the surface.

Since 28 December 1944 the SEALION had been performing reconnaissance
duty in support of American re-occupation of the Philippines in addition to her
offensive patrol. On 14 January 1945 she received orders to return to Fre-
mantle, West Australia, where she arrived on the 24th.

— page 8 —
-6- USS SEALION (ASSP 315)

While submarine activities in March and April were largely devoted to the
preliminaries and support of the Okinawa offensive, routine patrolling con-
tinued in areas removed from the storm center. Such was the SEALION'S fifth
war patrol conducted off the East Coast of the Malay Peninsula and in the Gulf
of Siam. She departed Fremantle on 19 February, arriving in her assigned area
on 5 March 1945, and joining the MINGO and PAMPANITO in a wolf Pack. In the
early morning of 17 March the SEALION'S radar picked up a lone unescorted tanker,
which had somehow escaped the February attrition. In a surface torpedo attack,
four bow torpedoes were fired. As the first torpedo hit, the target blew up
with a tremendous explosion. In six minutes the Japanese oil fleet was minus
one of its few remaining tankers, the SAMUI.

The remainder of her patrol was uneventful with the exception of the
rescue of an Army aviator who had been adrift for 23 days, on 2 April. She
returned to Subic Bay, Philippine Islands on 6 April 1945 for refit.

On 30 April Commander Putman took her out on her sixth war patrol. Most
of this patrol was spent on lifeguard duty off Hong Kong, China, during the air
strikes. No opportunities for rescue presented themselves, and no ship con-
tacts were made. She returned to Subic Bay on 3 June 1945, for fuel and
passengers, departing the following day for Guam, Pearl Harbor, and San Francisco
for overhaul. At Guam orders were received extending her sixth patrol and
assigning her to lifeguard station 10 miles south of Wake Island for scheduled
carrier air strikes. She arrived on 20 June and for the next ten days patrolled
off the approaches to Wake Island. The period was uneventful, and she arrived
at Pearl Harbor on 6 July 1945. The SEALION moored at the Bethlehem Steel
Company, San Francisco on 16 July, and was still undergoing overhaul at the
end of the war.

For her heroism during her six war patrols the USS SEALION was awarded
the Presidential Unit Citation with the text reading as follows:

"For extraordinary heroism in action during war patrols against
enemy Japanese surface forces in restricted waters of the Pacific.
Operating dangerously in defiance of extremely strong air and
surface opposition, the USS SEALION penetrated deep into hostile
waters to maintain a steady offensive against ships vital to
Japan's prosecution of the war. Consistently out-numbered and
outgunned, she pursued her aggressive course in spite of formi-
dable screens and severe anti-submarine measures to strike at
every opportunity and, by her concentrated torpedo fire, delivered
against convoys and combatant ships, sunk thousands of tons of
enemy shipping. Daring and skilled in carrying the fight to the
enemy, the SEALION also braved the perils of a tropical typhoon
to rescue fifty-four British and Australian prisoners of war,
survivors of a hostile transport ship torpedoed and sunk while
enroute from Singapore to the Japanese Empire. Her meritorious
record of achievement is evidence of her own readiness for
combat and the gallantry and superb seamanship of the officers
and men who brought her through unscathed."

— page 9 —
-7- USS SEALION (ASSP 315)

She earned five Battle Stars on the Asiatic-Pacific Area Service Medal
for participating in the following operations:

1 Star/Western Caroline Islands operation
  Assaults on the Philippine Islands -- 9-24 September 1944

1 Star/Leyte operation -- 31 October - 3 December 1944

1 Star/First Submarine War Patrol -- 8 June - 21 July 1944

1 Star/Fourth Submarine War Patrol -- 14 December 1944 - 24 January 1945

1 Star/Fifth Submarine War Patrol -- 19 February 0 6 April 1945

By Directive dated February 1948 the classification of the SEALION was
changed to a submarine transport ASSP 315, and as of July 1953 she is active
with the U. S. Atlantic Fleet.

STATISTICS

OVERALL LENGTH                                312 feet
BEAM                                          27 feet
SPEED                                         15 knots
DISPLACEMENT                                  1525 tons
COMPLEMENT                                    8 officers and 72 men

Compiled: 6 January 1954

— page 10 —
SEALION (SS 195)

The first submarine victim of enemy action was
SEALION (Lt. Cdr. R. G. Voge). The start of the
war on December 8 (east longitude date) found her,
along with SEADRAGON, in the last stages of overhaul
at the Navy Yard, Cavite, P.I. Both were scheduled for
completion December 12th.

Although there were frequent air raids in the Manila
area during the first two days of the war, no enemy
planes visited the Navy Yard Cavite until afternoon of
the 3rd day, December 10th. That day the air raid
alarm sounded about half an hour after noon, and
shortly thereafter 54 planes, in two groups of 27 each,
were sighted heading for the Navy Yard. SEALION was
nested at Machina Wharf with SEADRAGON inboard and
minesweeper BITTERN outboard. With the exception
of the Commanding Officer, the Executive Officer
(Lieut. Albert L. Raborn) and three men, all personnel
were below decks. The first stick of bombs landed
from 100 to 200 yards astern of SEALION, and at that
time, Voge, seeing that the planes were going to bomb
from high altitude where machine gun fire could not
reach them, ordered all hands below. It was a most
fortunate decision. On the next bombing run, but a few
minutes later, two bombs hit SEALION almost simul-
taneously. One struck the after end of the conning
tower fairwater, completely demolishing the machine
gun mount which had just been vacated, the main in-
duction, the battery ventilation and the after conning

R. G. Voge

tower bulkhead. It exploded outside the hull a few feet
above the control room. Had it entered the hull before
exploding, the majority of SEALION's crew would have
been lost, as most of the personnel were in that room.
A fragment from this bomb pierced the conning tower
of SEADRAGON, killing instantly Ensign Sam Hunter
of SEADRAGON, the first submarine casualty of the
war. Other fragments from this bomb pierced the
pressure hull, inflicting minor wounds on three SEA-
LION men in the control room.

At almost the same instant another bomb, passing
through the main ballast tank and the pressure hull,
exploded in the maneuvering space in the after end of
the after engineroom, killing four men working in that
compartment—Electrician Mates Foster, O'Connell and
Paul, and Machinist Mate Ogilvie.

With this explosion in the maneuvering space, the
after engineroom flooded immediately and SEALION
settled by the stern in the mud. The forward engine-
room and the after torpedo room flooded slowly through
bomb fragment holes in the bulkheads. Personnel in
these compartments, as well as in other parts of the
ship, escaped through the hatches, which were all still
above water. SEALION finally settled down by the
stern with about 40% of the main deck underwater and
15° list to starboard.

A. L. Raborn

The bomb which exploded above the control room,
while doing great superficial damage, did little harm

13

— page 11 —
to the pressure hull other than piercing it with numer-
ous bomb fragments. The bomb which exploded aft did
the major damage. A more vital spot than the maneu-
vering space could not possibly have been found. All
motor controls, reduction gears, and main motors were
wrecked, totally immobilizing the ship. However, the
damage would have been considered non-fatal had there
been overhaul facilities available for repairs. But such
was not the case; the bombing which wrecked SEALION

also demolished the Navy Yard Cavite, and the closest
repair facilities were at Pearl Harbor, 5000 miles
away. The war situation being what it was, it was im-
possible to tow SEALION that distance, and after re-
moving all gear of value, such as gyro, radio and sound
equipment, she was destroyed to prevent her from
falling into enemy hands. Three depth charges were
exploded inside SEALION on Christmas Day, 1941.

14

— page 12 —
UNITED STATES
SUBMARINE LOSSES

WORLD WAR II

Reissued with an Appendix of
Axis Submarine Losses, fully indexed,

by

Naval History Division
Office of the Chief of Naval Operations
Washington: 1963

— page 13 —
DECLASSIFIED

S315/-16-3/W                                        U.S.S. SILLION (SS315)
Serial 1 (07 - 44 )
                                                    c/o Fleet Post Office,
                                                    San Francisco, Calif.
DECLASSIFIED -A-L
                                                    21 July 1944.
[STAMP: DECLASSIFIED-ART. 0445, OPNAVINST. 5510.1C]
[HANDWRITTEN: BY 0109BH]
[HANDWRITTEN: DATE 6/5/77]

From:       The Commanding Officer.
To :        (1) The Commander-in-Chief, United States Fleet.
Via :       (2) The Commander Submarine Division TWENTY-TWO
            (3) The Commander Submarine Squadron TWENTY-TWO
            (4) The Commander Submarine Force, Pacific Fleet.
            (5) The Commander-in-Chief, United States Pacific Fleet.

Subject:    U.S.S. SILLION - Report of War Patrol Number ONE.

Enclosures: (A) Subject Report.
            (B) Track Chart for Submarine.

1. Enclosure (A), covering the FIRST War Patrol of
this vessel, conducted in the area EAST of the TWENTY-NINTH
north of the twenty-ninth parallel, during the period 8 June to
21 July 1944, is forwarded herewith.

                                                    R. T. RICH.

[HANDWRITTEN: FILMED]
[HANDWRITTEN: 83287]

— page 14 —
U.S.S. SEALION - Report of FIRST War Patrol.

(A) PROLOGUE:

The U.S.S. SEALION was commissioned on 8 March 1944
at New London, Connecticut. Upon completion of preliminary
training, departed New London, 19 April 1944, and arrived at
Submarine Base, Pearl Harbor, 17 May 1944. Made voyage repairs.
Commenced training period on 20 May 1944. On 23 May, Lieutenant
Clayton E. GREISFORD, USNR., reported aboard for duty. Two
week training period completed on 4 June 1944. Ready for sea,
7 June 1944.

(B) NARRATIVE:

8 June 1944

1330 (VW) Departed PEARL HARBOR for First War Patrol. Enroute
          to MIDWAY ISLAND pursuant to ComSubPac Opord 197-44
          in company with U.S.S. TANG; escorted until dark
          by PC-570.

9-11 June 1944

          Enroute MIDWAY. Conducted voice, sound, and NAN
          communication tests and procedure drills with TANG.
          Made daily dives, held fire control drills, and
          fired all guns.

12 June 1944

0730 (Y) Rendezvoused with air escort.

1015 (Y) Arrived MIDWAY. Fueled to capacity. Completed
          repairs to SJ radar (Section W) and Pitometer Log
          (Section K).

1600 (Y) Departed MIDWAY for Areas NINE and TWELVE in
          company with TANG.

14 June 1944

0001 (H) Crossed International Date Line. 13 June omitted
          from the calendar.

15 June 1944

0435 (H) Struck unidentified object with a dull thud which
          jarred the ship. Superficial examination of bow
          revealed no damage. Several whales were sighted
          after daybreak. Quite probably we ran into one.

- 1 - Enclosure (A)

— page 15 —
U.S.S. SEALLION - Report of FIRST War Patrol (cont'd.)

16 June 1944
2000 (L) Conducted further communication tests. Concluded
           that NAN apparatus was impracticable as a means of
           visual communication. Low frequency voice radio
           (less than 450 kc's) was unreliable beyond 8,000
           yards (See Section L).

20 June 1944
0700 (K) Entered fog bank.

22 June 1944
1010 (I) Overcast disappearing.
1040 (I) Sighted "Nato" type monoplane. (Aircraft Contact
           #1). Submerged.
1215 (I) Surfaced for L.A.N. sight.
1315 (I) Established position; submerged and headed for
           TOKARA STRAIT.
1625 (I) Made landfall on Yaku Shima, bearing 330° T, distance,
           37 miles.
2001 (I) Surfaced.
2330 (I) Entered EAST CHINA SEA and AREA NINE via TOKARA
           STRAIT. Set course for rendezvous with TANG and
           TINOSA.

23 June 1944
0253 (I) Arrived at rendezvous, 50 minutes late.
0357 (I) TANG arrived at rendezvous. Exchanged calls. Then
           mutually agreed that TANG would patrol southeast of
           KUSAKAKI SHIMA today and SEALLION in the channel
           between KUSAKAKI SHIMA and KURO SHIMA. Proceeded
           to patrol area.
0450 (I) Submerged in channel between KURO SHIMA and KUSAKAKI
           SHIMA.

- 2 - Enclosure (A)

— page 16 —
U.S.S. SEELION - Report of FIRST War Patrol (c nt'd)

0912 (I) Sighted "Noll" typo twin-engine bomber. (Aircraft
         Contact #2).

TORPEDO ATTACK NO. ONE
One XPG - No Damage
Lat. 29-53 N. Long. 129-43 E.

1705 (I) Sighted tops of vessel bearing 150° T, (Ship
         Contact #1) and commenced approach, closing target
         on normal course.

1725 (I) Identified target to be a river gunboat steering a
         steady course, 350° T, at 13 knots. Decided to
         fire 3 torpedoes from the bow tubes at torpedo
         depth of 6 foot.

1739 (I) Came to firing course 075° T.

1744 (I) Fired a salvo of three torpedoes on a 90° port
         track, 2000 yard run, zero gyros (Torpedo Attack
         #1).

1745 (I) At least one torpedo passed directly under target.
         Target turned down torpedo track, angle on bow,
         zero.

1746 (I) Rigged for depth charge attack, went to 250 foot,
         commenced evasive tactics on southerly courses.

1750 (I) A series of nine depth charges exploded above and
         below starboard quarter.

1758 (I) A second series of five depth charges exploded
         above and below port quarter. Went to 350 foot.

1804 (I) A third series of four depth charges exploded
         above starboard quarter.

1850 (I) Two final depth charges exploded astern to starboard
         and above. Estimated range 8,000 yards. Total
         charges dropped 20.

2017 (I) Surfaced. Nothing in sight; radar clear. Headed
         for rendezvous with TANG and TINOSA at a point
         fifteen miles south of DANJO GUNTO Light.

                               - 3 -                               Enclosure (A)

— page 17 —
U.S.S. DILLON - Roport of FIRST War Patrol (cont'd.)

24 Juno 1944

0250 (I) Arrived at rendezvous.

0315 (I) Executive Officer went over to TINOSA in rubber
            boat for instructions.

0400 (I) Executive Officer returned aboard. Set course for
            designated north-south patrol lane, ten miles wide,
            centered at lat. 32-00 N. long. 129-00 E. to patrol
            approaches to SASEBO.

0440 (I) Submerged.

1042 (I) Sighted armed motor trawler bearing 070° T, 6 miles.
            (Ship Contact #2)

1130 (I) Sighted small freighter bearing 077° T, 8 miles,
            angle on bow 30 port. (Ship Contact #3)

1150 (I) Freighter drew across bow bearing 068° T, 7 miles,
            angle on bow, 100 port.

1155 (I) Sighted small patrol craft similar to YMS bearing
            135° T distance 10 miles. (Ship Contact #4)

2010 (I) Surfaced.

2205 (I) Received convoy contact message from TING. Set
            course to intercept convoy which was on a westerly
            course.

25 Juno 1944

0025 (I) TING reported convoy had changed course to the
            northward heading for NAGASAKI or SASEBO. Changed
            course to northeast.

0208 (I) Radar contact appeared, bearing 130° T at 12,000
            yards. (Ship Contact #5) Our position then was
            15 miles west of NOMO SAKI, near probable track
            of convoy. This small pip appeared to be a flank-
            ing escort. Determined his course to be 315° T,
            speed 13 knots. Decided to pass under his stern
            to get at big stuff. No other pips on radar.

- 4 - Enclosure (A)

— page 18 —
U.S.S. SEALTON - Report of FIRST War Patrol (cont'd.)
(cont'd.)

25 June 1944
0238 (I) Changed course to 090° T to close estimated track
           of convoy. Lost contact with earlier target bearing
           320° T, range 14,000 yards.
0302 (I) Failed to make any further radar contacts. Changed
           course to return to assigned patrol area.
0445 (I) Submerged.
0914 (I) Sighted formation of four "Nell" type bombers
           (Aircraft Contact #3).
1415 (I) Surfaced under low overcast and intermittent rain
           squalls. Patrolling on surface.

26 June 1944
0452 (I) Submerged six miles southeast of FUKAE SHIMA, the
           southernmost island of GOTO RETTO.
1412 (I) Sighted small patrol vessel with gun mounted forward
           (Ship Contact #6).
2008 (I) Surfaced.

27 June 1944
           Patrolling submerged south of FUKAE SHIMA.
2019 (I) Surfaced. Proceeding at 17 knots to reach newly
           selected patrol station off TSUSHIMA STRAITS on the
           way to joint patrol area off west coast of CHOSEN.

28 June 1944
0434 (I) Submerged 14 miles south of TSUSHIMA ISLAND.
0546 (I) Sighted enemy patrol vessel bearing 220° T, range
           8,000 yards, on course 110° T.
0615 (I) Sighted smoke and masts of vessel 10,000 yards
           astern of escort.

TORPEDO ATTACK NO. TWO
One medium AK sunk
Lat. 34-03 N. Long. 129-00 E.

0654 (I) Target appeared to be zig-zagging radically and
           frequently, showing alternate port and starboard
           angles on the bow. Turn count about 160 turns,
           speed 12 knots.

- 5 - Enclosure (A)

— page 19 —
U.S.S. SEAWOLF - Report of FIRST War Patrol (cont'd.)
28 June 1944 (cont'd.)

0738 (I) The escort was well down the port quarter and out
          of sight as we came to a course for a 90° stern
          track at a range of 2000 yards, angle on bow 15°
          port.

0742 (I) Target now showed a small starboard angle on the bow
          range, 1400 yards. Swung left to get off track for
          a stern shot.

0747 (I) Target passed along starboard quarter - range, 200
          yards.

0750 (I) Fired three torpedoes from stern tubes - range, 600
          yards.

DIAGRAM OF TORPEDO ATTACK NO. TWO

0751 (I) Heard one sharp explosion. Target took a list to
          starboard and settled by the bow immediately.

0753 (I) Target dove. (Photograph #1)

0755 (I) Observed lifeboats clustered around stern of target
          which was still buoyant and slowly settling.
          (Photograph #2)

0830-0841 (I)Random depth charging. Far away. 20 charges
          dropped.

0901-0908 (I)Heard ten more distant depth charges.

                                        - 6 -                                 Enclosure (A)

— page 20 —
U.S.S. SULLIVAN - Report of FIRST War Patrol (cont'd.)

28 June 1944 (cont'd.)

1024 (I) Sighted small patrol vessel headed toward scene of
          attack. (Ship Contact #8)

1646 (I) Sighted small naval auxiliary similar to Chc 1-12
          as shown in ONI 41-42 loaded toward TSUSHIMA.
          (Ship Contact #9)

2012 (I) Surfaced. Headed for patrol lane agreed upon at
          rondozvous with TING and TINOSA. Charted course to
          pass between islands of KOREAN ARCHIPELAGO, north-
          ward of SHUSHI GUNTO and TAIRO TO.

29 June 1944

          Patrolled submerged to the east of KOKUZAN TO Light.

30 June 1944

0030 (I) Entered patrol lane. Received message from TINOSA
          stating that she was "retiring" because of mine
          contact.

0400 (I) Sea very heavy, weather stormy, patrolling on
          surface between 123°-00' E. and 124°-00' E. at
          34°-30' N.

0744 (I) Sighted sampan and approached for gun attack. (Gun
          Attack #1) (Ship Contact #10)

0830 (I) Sampan broke up. Approached to investigate
          survivors. They were five Japs. Continued patrol.
          Weather improved. Sighted numerous junks during
          remainder of day.

1452 (I) Sighted unidentified aircraft (Aircraft Contact #6)
          Submerged.

1 July 1944

0942 (H) Sighted steam yacht (Ship Contact #11) while patrol-
          ling submerged northward of KOKUZAN TO Light. She
          put in at the lighthouse landing. Later in the
          afternoon she got underway and disappeared to
          northward.

- 7 - Enclosure (A)

— page 21 —
U.S.S. SEALION - Report of FIRST War Patrol (cont'd.)

2 July 1944

0600 (H) Stopped a junk and sent boarding party to investigate.
         Junk was Chinese with no contraband aboard.

1735 (H) Stopped an unidentified junk and sent over boarding
         party. The master's papers were in order and when our
         friendly intentions were noted, the junk broke out
         the Chinese colors from the hold. A can of rice and
         a roll of boloney were turned over to the Chinese
         under the terms of the Lend-Lease Agreement. The
         boarding party returned amidst loud cheers, flying flags,
         and much kow-towing.

1916 (H) Sent diver over the side to investigate unusual prop-
         eller sounds.

1945 (H) Diver returned aboard. The condition of the shafting
         and propellers was normal.

2005 (H) Passed a floating mine. (Section I) This was the
         approximate position of the TINOSA'S mine contact
         three days earlier. Cleared area to the north.

3 July 1944

2204 (H) Effected rendezvous with TANG. Lieut-Comdr. M. B.
         FRAZEE, Jr., U.S. Navy, came aboard. Learned that
         TANG had but seven torpedoes remaining. Decided to
         proceed independently to SHANGHAI APPROACHES where-
         abouts of TINOSA unknown since "retirement" message
         of 30 June.

2350 (H) Got underway, proceeding to SHANGHAI APPROACHES along
         a track sweeping through the southeast part of AREA
         TWELVE.

6 July 1944

         TORPEDO ATTACK NO. THREE
         One large AK sunk
         Lat. 29-59 N. Long. 122-53 E.

0343 (H) Radar picked up two targets (Ship Contact #12) bearing
         187° T, range, 20,000 yards about one hour before
         sunrise. Our position was ten miles due south of
         FOUR SISTERS ISLANDS. Commenced closing target on
         southerly courses at seventeen knots. True bearing
         almost steady.

                               - 8 -                               Enclosure (A)

— page 22 —
U.S.S. SEALION - Report of FIRST War Patrol (cont'd.)
6 July 1944 (cont'd.)

0354 (H) When the range had closed to 14,000 yards two ships
were sighted. Angle on the bow was between twenty
and thirty starboard, speed 8.5 knots. Came to
normal approach course.

0356 (H) Submerged. Going ahead full speed to close track.
Estimated target base course 330° T, heading for
pass between VIDEO ISLAND and FOUR SISTERS ISLAND.

0410 (H) Target groups veering to the westward, heading for
shallow water and inter-island passage, angle on the
bow now about 60° starboard, range 10,000 yards.
Continued to close, making approach at periscope
depth.

0445 (H) Torpedo run to the large AK which we had selected for
our target now reduced to minimum, 3800 yards, with
a 90° starboard track. At this time the other
vessels of the convoy appeared in the periscope, hull
down and far out of range. Decided to fire now or
never. An end around was impossible in these
restricted waters - the southeastern approaches to
SHANGHAI.

DIAGRAM OF TORPEDO ATTACK NO. THREE

[HANDWRITTEN: TWO BRO. IS]
[HANDWRITTEN: 30°N 123°E]

[HANDWRITTEN: W —]
[HANDWRITTEN: FOUR SIS]
[HANDWRITTEN: VIDEO IS]

[HANDWRITTEN: 0:43 CONTACT]

[HANDWRITTEN: FIRED 4 TORP]
[HANDWRITTEN: 0:42 AT (C)]
[HANDWRITTEN: SWASH]

[HANDWRITTEN: 0354]
[HANDWRITTEN: 0410]
[HANDWRITTEN: 0445]
[HANDWRITTEN: 30°N —]

[HANDWRITTEN: CHUSAN ARCHIPELAGO]

[HANDWRITTEN: (Diagram elements indicating movement, angles, and speeds)]
[HANDWRITTEN: 20-30°]
[HANDWRITTEN: 8.5 KTS]
[HANDWRITTEN: 60°]
[HANDWRITTEN: 90°]
[HANDWRITTEN: 330°]
[HANDWRITTEN: 0445 SUBMERGED]

- 9 - Enclosure (A)

— page 23 —
U.S.S. SE LION - Report of FIRST War Patrol (cont'd.)

6 July 1944 (cont'd.)

0447 (H) Fired four torpedoes at large AK, range, 3800 yards,
           track angle 110° starboard.

0448 (H) Fired two torpedoes at second target, two thousand
           yards astern of first.

0452 (H) Heard one explosion. Observed medium AK behind the
           second target, settle by the stern and sink.

0453 (H) Ships of the convoy scattered to the westward.
           KAKATAKE Class Destroyer arrived on scene and
           commenced random depth charging. Retired to the
           northeast.

0530 (H) Observed second escort and a small AK heave to at
           scene of sinking, probably recovering survivors.

           TORPEDO ATTACK NO. FOUR
           No damage inflicted
           Lat. 30-02 N. Long. 122-54 E.

0557 (H) KAKATAKE closed the range to 3500 yards while search-
           ing the area. Angle on the bow 15° port, speed 18
           knots. Decided to fire four Mark 18 torpedoes at him
           as he crossed our stern.

0600 (H) Fired four torpedoes from the stern tubes when range
           had closed to 1800 yards, track angle 90° port.
           Target commenced turn away after the second torpedo was
           fired. All torpedoes missed.

0711 (H) Sighted two enemy aircraft circling over sunken AK.
           (Aircraft Contact #7) Went to 100 feet and continued
           to clear area on northeasterly course. Shortly after
           sighting these aircraft two explosions were heard
           which sounded like depth bombs.

1553 (H) Heard the last of forty-five depth charges dropped at
           random at ranges of 3,000 yards and greater.

1935 (H) Surfaced and proceeded to northeast, clearing area
           and crossing probable routes of convoy if it was
           proceeding to JAPAN.

7 July 1944

           Patrolling submerged south of SAISHU TO (QUELPART
           ISLAND). No signs of convoy. Decided to return to
           shipping lane running due west from MOKPOZAN GUNTO
           right where TANG picked up three freighters.

           - 10 -                                Enclosure (A)

— page 24 —
U.S.S. SEALLION - Report of FIRST War Patrol (cont'd.)
(cont'd.)

7 July 1944
2343 (H) Sighted red tracer fire due north. This was the eve
          of the Second KYUSHU Air Raid.

9 July 1944
1450 (H) Patrolling on surface west of DAIKOKUZAN GUNTO.
          Sighted floating mine (Section I). Exploded mine
          with 20 m.m. fire. Decided to proceed to northern
          part of AREA TWELVE.
1558 (H) Passed a second floating mine (Section I).

10 July 1944
          Patrolling on the surface in a dense fog between
          SHANTUNG PENINSULA and KOREA. The S.J. radar was out
          of commission from dawn until dark.
2300 (H) Radar back in partial commission. Established position
          by radar on DAISEI GUNTO Group. Fog very thick.
          Visibility 200 yards.
2346 (H) Pip appeared on radar at 10,000 yards, bearing 030° T
          (Ship Contact #13). Commenced tracking. Target was
          steering steady course, 150° T, making 8 knots.

11 July 1944
TORPEDO ATTACK NO. FIVE
One AK Sunk
Lat. 37-00 N. Long. 124-32.5 E.
0042 (H) Fired three torpedoes from the bow tubes on a ninety
          starb ard track at 1000 yard range.
0043 (H) Heard and saw explosion.
0044 (H) Radar pip of target disappeared. Sound operator
          heard characteristic sounds of sinking ship.
          Proceeded to northward at nine knots.
TORPEDO ATTACK NO. SIX
No Damage Inflicted
Lat. 37-38.3 N. Long. 124-41 E.

- 11 -
Enclosure (A)

— page 25 —
U.S.S. SALLION - Report of FIRST War Patrol (cont'd.)
11 July 1944 (cont'd.)

0137 (H) Radar pip appeared on screen, 8 miles bearing 190° T
from southern tip of D.ISCHI GUNTO Group (Ship Contact
#14). Commenced tracking. Target was stopped.
Approached slowly to 1000 yards. A tidal current
set us to southward as we neared target. Estimated
target heading to be 340°-010°, if anchored.
Decided to fire three torpedoes with a two degree
convergent spread and a run of 1000 yards on a 80-
10° port track. Visibility was now about 100 yards.

0322 (H) Fired three torpedoes as planned, set at 6 foot.
Sound reported torpedoes ran hot, straight, and
normal. There was no explosion. Decided to head
for home. Only two torpedoes remained, one forward
and one aft.

TORPEDO ATTACK NO. SEVEN
No Damage Inflicted
Lat. 37-24 N. Long. 124-32 E.

0515 (H) Two pips appeared on radar, (Ship Contact #15)
bearing 150°-140° T, range 14,000 yards. Commenced
tracking the larger of the two pips. Evidenced no
plan to draw away from the first. Evidently the two
ships were proceeding independently. Our target was
zig-zagging on base course 275° T at 9 knots.

0652 (H) Target steadied on course 290° T, placing us 2000
yards off the track at a range of 4000 yards.
Decided to fire bow tube on a sixty degree port
track. Continued to close target.

0658 (H) Target apparently zigged toward when the range was
down to 1500 yards. Decided to reverse course, pull
off track and fire the stern tube.

0701 (H) Steadied on course for a 90° port track with the
stern tubes, but discovered the target was still
on 290° T, opening the range rapidly.

0702 (H) Fired #10 tube with a 10° right gyro on a 120°
port track and a run of 1700 yards.

- 12 - Enclosure (A)

— page 26 —
U.S.S. SEALLION - Report of FIRST War Patrol (cont'd.)
11 July 1944 (cont'd.)

DIAGRAM OF TORPEDO ATTACK NO. SEVEN AND EIGHT

                                                                N
                                                                ^
                                                                |
                                                            W ----- E
                                                                |
                                                                vv
                                                                S

        0711
        FIRED ONE TORPEDO
        3°LEFT GYRO
                                        0702-RANGE 1400 YDS.
                                    0658
                                    FALSE ZIG
        0658
    0652
                                        0702
                                        FIRED ONE TORPEDO
                                        10°RIGHT GYRO
                                                                0602

TORPEDO ATTACK NO. EIGHT
One AK Sunk
Lat. 37-25 N. Long. 124-32 E.

0703 (H) Started after target again at 18 knots.

0709 (H) Started in for bow tube attack on an 70° port track.
         Range 2000 yards.

0711 (H) Fired one torpedo on a 90° port track at range of
         500 yards.

0712 (H) Heard explosion as target loomed up dead ahead.
         Range 250 yards. Debris flew overhead, smoke
         billowed up. The rudder was put hard right and we
         slid by the port quarter of the target with our
         after 20 m.m. pouring shells into the Jap's bridge.

0714 (H) Target disappeared from the radar screen at a range
         of 2000 yards. Headed south for TOKARA STRAIT.

0920 (H) Sighted small motor sampan, possibly patrolling.
         (Ship Contact #16)

                                - 13 -                                Enclosure (A)

— page 27 —
U.S.S. SEALLION - Report of FIRST War Patrol (cont'd.)

12 July 1944
0906 (H)         Sighted "Mavis" type patrol plane (Aircraft Contact
                 #8) while running on the surface southwest of
                 QUELPART ISLAND (SAISHU TO). Submerged for remainder
                 of day.

2300 (H)         Departed AREA TWELVE entered AREA NINE.

13 July 1944
0645 (H)         Submerged twenty-five miles west of KUSAKAKI RHETTO.

1445 (I)         Sighted "Sally" type two-engine bomber. (Aircraft
                 Contact #9)

2145 (I)         Sighted small boat, range 2,000 yards. Manouvered
                 to avoid.

2330 (I)         Passed through TOKARA STRAIT and departed AREA NINE.

14 July 1944
0857 (I)         Sighted "Mavis" type four-engine patrol plane.
                 (Aircraft Contact #10) Submerged.

0903 (I)         Surfaced. All clear.

15 July 1944
0832 (I)         Sighted "Mavis" type four-engine patrol plane
                 coming in low from dead astern. (Aircraft Contact
                 #11) Submerged.

0837 (I)         Heard one depth bomb explode fairly close aboard.

1153 (I)         Came to periscope depth for an observation. "Mavis"
                 still circling. Decided to remain submerged until
                 dark.

1859 (I)         Surfaced.

16 July 1944
1926 (K)         Converted #3 and #5 fuel-ballast tanks from fuel
                 tanks to ballast tanks. About three hours were
                 required to complete the job. A speed increase
                 of seven-tenths of a knot resulted from the change.

                 - 14 -                                Enclosure (A)

— page 28 —
U.S.S. SILLIN - Report of FIRST War Patrol (cont'd.)

17 July 1944
0350 (Z) Radar interference appeared on SJ radar screen bearing
          due south. Presumably this interference came from one
          of our submarines, westbound.

1005 (K) Recovered life ring bearing the name K. MARU -
          Y.K.K. Lat. 30°-21' N. Long. 150°-50' E.
1655 (K) Sighted over turned skiff with what was believed to be
          a shell hole in its bottom. Lat. 30-26 N. Long. 152-55 E.

19 July 1944
0730 (L) Sighted two friendly submarines one on the port and one
          on the starboard bow heading west. Exchanged recognition
          signals and calls.

21 July 1944
2359 (Z) Crossed International Date Line.

21 July 1944
0540 (Y) Joined air escorts from MIDWAY.
0920 (Y) Arrived MIDWAY ISLAND.

- 15 - Enclosure (..)

— page 29 —
U.S.S. S.LION - Report of FIRST War Patrol (cont'd.)

(C) WEATHER:
On 20 June, passed through extensive fog bank;
latitude 29-30 N., longitude 142-00 E. to 144-00 E.
Visibility 1000 yards; wind, S.S.; force 4;
barometer 29.77, air temperature, 70° F, sea
temperature, 74° F. The weather south of OKINAWA was
generally hazy and overcast. In the northern part
of the area, in the vicinity of the SHIKOKU
ARCHIPELAGO, a heavy fog prevailed during the two
days (10 July - 11 July) that we were there.
Throughout the area, complete overcast prevailed 30%
of the time and the sea was calm. Average temperature
about 67° F. Rain fell on one day. On several
others mist clouded binoculars. With a radar,
submarine patrol is aided by the weather
during this season. The terrain abounds in landmarks
permitting close approach to inshore shipping lanes
without detection. The heavy cloud cover hinders
aircraft operations, permitting much surface patrol-
ling and consequent efficient area coverage. For
forces shipping out into the open where pursuit is
unhampered by geography.

(D) TIDAL INFORMATION:
Currents:
1. Through TOKARA KAIMYO, two hours after high water,
110° T, 2 knots, on 22 June 1944.
2. Through passage between IKI and
KUSAKAKI SHIMA, 190° T to 100° T, 1 knot, for 14
hours on 23 June 1944.
3. The currents around GOTO RETTO conform with
those shown on charts and in Sailing Directions, at
110° T, 2 knots.
4. To the eastward of CHUSAN ARCHIPELAGO, south
of SHIKOKU, a northeasterly 3/4 knot current was
averaged during the period 5 July - 6 July when
the moon was waxing full.

- 16 - Enclosure (A)

— page 30 —
U.S.S. SEALION - Report of FIRST War Patrol (cont'd.)

(E) NAVIGATION AIDS:
LIGHTS | LIST NO. | CHARACTERISTIC | INTENSITY
Danjo Gunto | #1648 | Normal | Reduced
Yaku Shima | #1656 | Normal | Reduced
Kusakaki Shima | #1650 | Normal | Reduced
O Shima | #1646 | Extinguished |
Ose Saki | #1644 | Normal | Normal
Shiro Se | #1632 | Normal | Normal
Ko Saki | #1616 | Not observed | Reduced or
| | | extinguished.
Kokuzan To | #2786 | Extinguished | 28 June 1944
| | Normal | Normal
| | | 29 June 1944

(F) SHIP CONTACTS:
NO. | TIME | LAT | TYPE(S) | RANGE | INITIAL COURSE | SPEED | HOW CONT | REMARKS
| | LONG | | | | | |
1 | 1705(I) | 29-53 N. | MPC | 13,000 | 350° T. | F | (Torpedo attack
| 23 June | 129-43 E. | 1000 T. | yds. | 13 kts. | | #1).
- | - | - | - | - | - | - | - | -
2 | 1042(I) | 31-58 N. | PC | 10,000 | Varied | P | Patrolling
| 24 June | 128-41 E. | | yds. | | |
- | - | - | - | - | - | - | - | -
3 | 1120(I) | 31-57 N. | AVP | 16,000 | 050° T. | P | Unable to close
| 24 June | 128-40.5 E. | 2000 T. | yds. | 12 kts. | |
- | - | - | - | - | - | - | - | -
4 | 1155(I) | 31-56 N. | 2 YS | 12,000 | 060° T. | P | Patrolling
| 24 June | 128-47.5 E. | | yds. | - | |
- | - | - | - | - | - | - | - | -
5 | 0203(I) | 32-28 N. | UNK | 12,000 | 315° T. | R | Estimated to be
| 25 June | 129-35 E. | | yds. | 13 kts. | | a PC or DE from
| | | | | | | | pip signal.
- | - | - | - | - | - | - | - | -
6 | 1412(I) | 32-35 N. | LST | 10,000 | 030-090 | P | Patrolling
| 26 June | 128-57 E. | | yds. | 10 kts. | |

- 17 -
Enclosure (..)

— page 31 —
U.S.S. SALLION - Report of FIRST War Patrol (cont'd.)

(F) SHIP CONTACTS (cont'd.)

: : : : : : EST. :
NO. : DATE : LAT : TYPE(S) : RANGE : INITIAL : REMARKS
: TIME : LONG : : : COURSE : SPEED : CONT. :

7 :0546(I):34-03 N. :CONVOY :10,000 :110° T: P :One AK (Sunk) one
:28 June:129-00 E. : : yds. :12 kts: :PC (Torpedo att-
: : : : : : :ack #2)

8 :1024(I):33-55 N. :P.M. :10,000 :070° T: P :---
:28 June:128-49 E. : : yds. :10 kts: :

9 :1646(I):33-52 N. :AK : 8,000 :080° T: P :---
:28 June:128-44 E. : : yds. :12 kts: :

10 :0744(II):34-28 N. :Saipan :10,000 :090° T: R :Sunk by gunfire
:30 June:124-00 E. : : yds. : 3 kts: : (50 Tons)

11 :0942(E):34-07 N. :Steam :12,000 :260° T: P :Probably light-
: 1 July :125-21 E. :Yacht : yds. : 8 kts: :house tender or
: : : : : : :inter-island
: : : : : : :ferry.

12 :0343(E):29-50 N. :CONVOY :20,000 :330° T: R :2 or 3 Tankers
: 6 July :122-56 E. : : yds. :8.5 kts: :1 very large AK
: : : : : : :2 or 3 small AK's
: : : : : : :2 or 3 small DD's
: : : : : : :1 large AK
: : : : : : :Sunk. (Torpedo
: : : : : : :attack #3 & #4)

13 :2346(E):37-02 N. :AK? :10,000 :150° T: R :(Torpedo attack
:10 July:124-31 E. : : yds. : 8 kts: : #5) One AK Sunk

14 :0137(II):37-38.3 N: --- :10,000 : 0 : R :Anchored target.
:11 July:124-41 E. : : yds. : : :200 yds. visib-
: : : : : : :ility. (Torpedo
: : : : : : :attack #6)

15 :0515(E):37-24 N. :2 AK's :14,000 :275° T: R :Each AK was pro-
:11 July:124-32 E. : : yds. : 9 kts: :ceeding independ-
: : : : : : :ently on different
: : : : : : :courses. (Torp-
: : : : : : :edo attack #7 &
: : : : : : :#8)

16 :0930(E):36-52 N. :Motor :10,000 :180° T:Sight: Patrolling or
:11 July:124-43 E. :Sampan : yds. : 5 kts: : fishing.

- 18 - Enclosure (L)

— page 33 —
U.S.S. SEALION - Report of FIRST WAR PATROL (Cont'd).
(G) AIRCRAFT CONTACTS (Cont'd).

| Contact Number      | : 6       | : 7       | : 8       | : 9       | : 10      | : 11      | :
||||||||---
| SUBMARINE           |           |           |           |           |           |           |
| Date                | : 6/30    | : 7/6     | : 7/12    | : 7/13    | : 7/14    | : 7/15    | :
| Time (Zone)         | : 1452    | : 1411    | : 0908    | : 1445    | : 0857    | : 0832    | :
| Position: Lat.      | : 29-30N  | : 29-59N  | : 33-53N  | : 30-47N  | : 29-56N  | : 29-56N  | :
| Long.               | : 123-07E | : 122-53E | : 133-53E | : 129-17E | : 132-51E | : 132-51E | :
| AIRPLANE            |           |           |           |           |           |           |
| Speed               | : 9       | : 3       | : 17      | : 3       | : 15      | : 13      | :
| Course              | : 180°T   | : 060°T   | : 137 T   | : 145°T   | : 090°T   | : 090°T   | :
| Trim                | : Surf    | : Per.    | : Surf    | : Per.    | : Surf    | : Surf    | :
| Minutes Since Last  | :         | :         | :         | :         | :         | :         | :
| SD Radar Search     | :         | :         | :         | :         | :         | :         | :
|                     |           |           |           |           |           |           |
| Number              | : 1       | : 2       | : 1       | : 1       | : 1       | : 1       | :
| Type                | : UNK     | : Sally   | : Mavis   | : Sally   | : Mavis   | : Mavis   | :
| Probable Mission    | : UNK     | : H       | : Pat     | : Tran    | : Pat     | : Pat     | :
| How Contacted       | : Sight   | : Per     | : Sight   | : Per     | : Sight   | : Sight   | :
| Initial Range       | : 5 Mi    | : 3 Mi    | : 8 Mi    | : 5 Mi    | : 5 Mi    | : 7 Mi    | :
| Elevation Angle     | : 7°      | : 10°     | : 9°      | : 25°     | : 3°      | : 1°      | :
| Range & Relative    | :         | :         | :         | :         | :         | :         | :
| Bearing of Plane    | :         | :         | :         | :         | :         | : 180°    | :
| When It Detected S/M: N.D.      | : N.D.    | : N.D.    | : N.D.    | : 12000   | : 5000    | :
| CONDITIONS          |           |           |           |           |           |           |
| C (Beaufort)        | : 2       | : 1       | : 3       | : 2       | : 0       | : 0       | :
| O Sea: (Direction) (Rel)| : 200°T   | : 200°T   | : 100°T   | : 180°T   | : 0       | : 0       | :
| N Visibility (Miles)| : 7       | : 15      | : 10      | : 20      | : 10      | : 4       | :
| D Height in Ft.     | : 3000    | : 5000    | : 3000    | : 2000    | : 500     | : 1500    | :
| I Clouds: (Percent) | :         | :         | :         | :         | :         | :         | :
| T Overcast          | : 75%     | : 50%     | : 60%     | : 5%      | : 80%     | : 90%     | :
| I Moon: (Bearing Rel.| :         | :         | :         | :         | :         | :         | :
| O (Angle            | :         | :         | :         | :         | :         | :         | :
| N (Percent Illum.   | :         | :         | :         | :         | :         | :         | :
| S                   |           |           |           |           |           |           |

Type of S/M Camouflage on this patrol Light Gray.

- 20 -
Enclosure (A)

— page 34 —
U.S.S. SALMON - Report of FIRST War Patrol (cont'd.)

(2) ATTACK DATA: TORPEDO ATTACK NO. ONE

USS SALMON (SS-182) Torpedo Attack No. ONE Patrol No. ONE
Time: 1741 (I) Date: 23 June 1944. Lat. 29-53 N. Long. 129-43 E.

TARGET DATA - DAMAGE INFLICTED

Description River gunboat type with rising forecastle bulwark,
            long amidship deckhouse, wide beam, single funnel,
            light draft, 1000 tons.
Ship(s) sunk: None.
Ship(s) damaged or
probably sunk: None.
Target draft: 5 feet. Course 350° T. Speed: 13 kts. Range: 2000 yds
                                                      at firing.

OWN SHIP DATA

Speed: 2.8 kts. Course: 076° T. Depth: 64 ft. Angle: 0° (at firing)

FIRE CONTROL DATA FOR EACH TORPEDO

Type Attack: Daylight submerged, periscope attack. 3 w tubes.

| | #4 | #5 | #6 |
|---|---|---|---|
| Tubes Fired: | 4 | 5 | 6 |
| Track Angle: | 90 port | 90 port | 90 port |
| Gyro Angle: | 0 | 0 | 0 |
| Depth Set: | 6 ft | 6 ft | 6 ft |
| Primer: | High | High | High |
| Hit or Miss: | Miss | Miss | Miss |
| Erratic: | No | No | No |
| Mark Torpedo: | 23 | 23 | 23 |
| Serial Number: | 49448 | 49660 | 25841 |
| Mark Exploder: | 6-4 | 6-4 | 6-4 |
| Serial Number: | 10829 | 12713 | 8770 |
| Actuation Set: | Contact | Contact | Contact |
| Actuation Actual: | Contact | Contact | Contact |
| Mark Warhead: | 16-1 | 16-1 | 16-1 |
| Serial Number: | 10253 | 12116 | [UNCLEAR: 16228 or 16229] |
| Explosive: | Torpex | Torpex | Torpex |
| Firing Interval: | 8 sec. | 7 sec. | |
| Type Spread: | 3' Divergent | | |
| Sea Condition: | Calm | Calm | Calm |
| Vernal activity: | Submarine Base, Pearl Harbor. | | |
| Remarks: | At least one torpedo passed directly under | | |
| | target. | | |

- 21 -
[HANDWRITTEN: Enclosure (_)]

— page 35 —
U.S.S. SAIFISH - Report of FLG. War Patrol (cont'd.)
(L) ATTACK DATA
U.S.S. SAIFISH Torpedo Attack No. 7. Patrol No. 14
Time: 0750 (Z) Date: 27 June 1944. Lat. 34-03 N. Long. 129-00 E.

TARGET DATA - PAGE 248 & 249

Description: Medium size freighter similar to SUIKAI, L.U., MI-203J,
             page 248 (LU) and one escort similar to PC Class
             as shown in MI 41-2 (LU) ranging 10,000
             yards ahead.
Ship(s) sunk: One.
Ship(s) damaged or
probably sunk: None.

Target draft: 12 feet. Course: 110° T. Speed: 12 kts. Range: 600 yd

OWN SHIP DATA

Speed: 3.5 kts. Course: 220 T. Depth: 64 feet. Angle: 0'

FIRING DATA - PAGE 249

Type Attack: Daylight, submerged, periscope attack. Stern Tubes.

Tubes Fired:         #7             #8             #9
Track Angle:         150' stb'd     150' stb'd     150' stb'd
Gyro Angle:          80' right      85' right      83' right
Depth Set:           8 ft           8 ft           8 ft
Power:               ---            ---            ---
Hit or Miss:         Miss           Hit            Miss
Magnetic:            No             No             No
Mark Torpedo:        18-1           18-1           18-1
Serial Number:       54307          54463          54296
Mark Exploder:       4-2            4-2            4-2
Serial Number:       8314           1220           16897
Actuation Set:       Contact        Contact        Contact
Actuation Actual:    Contact        Contact        Contact
Mark Warhead:        18             18             18
Serial Number:       1057           1523           461
Explosive:           Torpex         Torpex         Torpex
Firing Interval:     10 sec
Type Spread:         2' divergent
Tube Condition:      Cal.           Cal.           Cal.
Special Activity:    Submarine base, real target
Remarks:             Torpedo struck target forward.
                     Target listed to stb'd, then went down
                     by the head exactly two minutes after the
                     explosion.

- 22 -                                                Enclosure (L)

— page 36 —
U.S.S. SAWFISH - Report of FIRST War Patrol (cont'd.)
(I) ATTACK DATA

U.S.S. SAWFISH Torpedo Attack No. 1111 Patrol No. 11.
Time: 0447(K) Date: 6 July 1944. Lat. 29-59 N. Lon. 122-53 E.

TARGET DESCRIPTION

Description: Nine to twelve ship convoy consisting of:
a. Two or three tankers (10,000 tons)
b. One large AK (12,000 - 14,000 tons)
c. Two or three medium to large AK's
d. Two or three small AK's
e. Two destroyer escorts, one unknown type DD,
the other unidentified.
Ship(s) Sunk: One large AK (L), 7,500 tons.
Ship(s) damaged or
probably sunk: None.
Sink determined by: Observed ship sink.

Target draft: 16 ft. Course: 290° T. Speed: 8.5 kts. Range: 4000-
5500 yds.

OWN SHIP DATA

Speed: 4 kts. Course: 230° T. Depth: 64 feet. Angle: 0°

FIRING AND TORPEDO DATA

Type attack: Daylight, submerged, radar, periscope attack. Bow tubes.

| | #1 | #2 | #3 | #4 | #5 | #6 |
|---|---|---|---|---|---|---|
| Tubes Fired: | 112 S. | 112 S. | 112 S. | 112 S. | 90 S. | 90 S. |
| Track Angle: | 7 L. | 7 L. | 7 L. | 7 L. | 5 L. | 5 L. |
| Gyro Angle: | 8 ft | 8 ft | 8 ft | 8 ft | 8 ft | 8 ft |
| Depth Set: | High | High | High | High | High | High |
| Power: | No | No | No | No | No | No |
| Erratic: | Miss | Miss | Miss | Miss | Miss | HIT |
| Hit or Miss: | 23 | 23 | 23 | 23 | 23 | 23 |
| Mark Torpedo: | 49706 | 26061 | 49661 | 52960 | 49589 | 26074 |
| Serial Number: | 6-4 | 6-4 | 6-4 | 6-4 | 6-4 | 6-4 |
| Mark Exploder: | 11375 | 8850 | 7845 | 9546 | 5899 | 7734 |
| Serial Number: | Contact | Contact | Contact | Contact | Contact | Contact |
| Actuation Set: | Contact | Contact | Contact | Contact | Contact | Contact |
| Actuation Actual: | 16-1 | 16-1 | 16-1 | 16-1 | 16-1 | 16-1 |
| Mark Warhead: | 13080 | 12221 | 12532 | 12293 | 13031 | 9471 |
| Serial Number: | Torpex | Torpex | Torpex | Torpex | Torpex | Torpex |
| Explosive: | | | | | | |
| Firing Interval: | Longitudinal (quarter length) | | | | | |
| Type Spread: | 0' | 0' | | | | |
| Set Condition: | Light Chop. | | | | | |
| Sea Condition: | | | | | | |

Remarks: The first four torpedoes were fired at a very large
(10,000) tons) AK at the stern of the nearest column. The
fifth and sixth torpedoes were fired at the ship immediately
astern. The one hit obtained was on the
next column which overlapped the second target.
A torpedo explosion was heard 4 minutes after the last
torpedo was fired.

- 23 - Inclosure (..)

— page 37 —
U.S.S. [UNCLEAR: GALLION] - Report of FIRST War Patrol (cont'd.)
(I) ATTACK DATA
U.S.S. [UNCLEAR: GALLION]
Time: 0600(.) Date: 6 July 1944. Lat. 30-02 N. Long. 122-54 E.

TARGET DATA - DAMAGE INFLICTED

Description: One W.L.M. Class M (Escort of convoy, torpedo
attack #3).
Ship(s) Sunk: None.
Ship(s) damaged or
probably sunk: None.

Target draft: 20 ft. Course: 150 T. Speed: 17 kts. Range: 1330 yds.

Speed: 4 kts. Course: 010 T. Depth: 80 ft. Angle: 0

FIRING DATA - TORPEDO DATA

Type attack: Daylight, submerged, periscope attack. Stern tubes.

| | #7 | #8 | #9 | #10 |
|---|---|---|---|---|
| Tubes Fired: | | | | |
| Gyro Angle: | 90 port | 90 port | 90 port | 90 port |
| Depth Set: | 48 L | 48 L | 50 L | 52 L |
| Power: | 4 ft | 4 ft | 4 ft | 4 ft |
| Hit or Miss: | High | High | High | High |
| Erratic: | Miss | Miss | Miss | Miss |
| Mark Torpedo: | No | No | No | No |
| Serial Number: | 18-1 | 18-1 | 18-1 | 18-1 |
| Mark Exploder: | 54410 | 54320 | 54409 | 54446 |
| Serial Number: | 4-2 | 4-2 | 4-2 | 4-2 |
| Actuation Set: | 8533 | 062 | 0320 | 021 |
| Actuation Actual: | Contact | Contact | Contact | Contact |
| Mark Warhead: | Contact | Contact | Contact | Contact |
| Serial Number: | 18 | 18 | 18 | 18 |
| Explosive: | 2289 | 1563 | 1759 | 2211 |
| Firing Intervals: | Torpex | Torpex | Torpex | Torpex |
| Type Spread: | 10 sec. | 10 sec. | 10 sec. | 10 sec. |
| Sea Condition: | 2° Divergent. | | | |
| Overhaul Activity: | Light Chop. | | | |
| Remarks: | Submarine Base, Pearl Harbor. | | | |
| | Target turned away 90° just as the third | | | |
| | torpedo was fired. At the time of firing target | | | |
| | was searching, depth charging, and patrolling | | | |
| | after torpedo attack. | | | |

enclosure (...)

— page 38 —
U.S.S. SALMON - Report of FIRST War Patrol (cont'd.)
( ) ATTACK DATA

U.S.S. SALMON Torpedo attack No. XIV. Patrol No. ONE.
Time: 0042(I) Date: 12 July 1944. Lat. 37-30 N. Long. 124-32.5 E.

TARGET DATA - DETAILED

Description: Target unidentified because of heavy fog.
Ship(s) sunk: No (UN).
Ship(s) damaged: None.
Probably sunk: None.
Damage determined by: A dim pip disappeared at 760 yards.
Target draft: over 6 ft. Course: 150 T. Speed: 8 kts. Range: 1000 yds

OWN SHIP DATA

Speed: 6 kts. Course: 230 T. Depth: Surface. Angle:

FIRING DATA DETAILED

Type Attack: Night radar. Bow Tubes.

                         #4        #5        #6
Tubes Fired:             4         5         6
Track angle:             92 S      100 S     95 S
Gyro angle:              2 S       0         2
Depth Set:               6 ft      6 ft      6 ft
Power:                   High      High      High
Hit or Miss:             Miss      HIT       Miss
Erratic:                 No        No        No
Mark Torpedo:            14-3      23        23
Serial Number:           40367     49272     41546
Mark Holder:             6-5       6-4       6-5
Serial Number:           2767      160       8535
Actuation Set:           Contact   Contact   Contact
Actuation Actual:        Contact   Contact   Contact
Mark Warhead:            16-1      16-1      16
Serial Number:           12203     3354      730
Explosive:               Torpex    Torpex    Torpex
Firing Interval:                   8 sec.    8 sec.
Type Spread:             5' Divergent
Sea Condition:           Calm      Calm      Calm
Overhaul Activity:       Submarine Base, Pearl Harbor, T.H.
Remarks:                 Entire attack was made on radar
                         bearings. Visibility 200 yds. or less.

- 25 -                               Enclosure (L)

— page 39 —
U.S.S. S.LION - Report of XLIst Patrol (cont'd.)
(1) T.T.U.D.A. R.A.M.F.D.

T.T.U.D.A. Torpedo Attack No. 31. Patrol No. 2.
Date: 12 July 1944. Lat. 37-32.5 N. Long. 124-41 E.

TARGET DATA - DAMAGE INFLICTED
Description: Target unidentified because of heavy fog.
Ship(s) sunk: None.
Ship(s) damaged or probably sunk: None.
Target drift: Unk. Course: Unk. Speed: 0. Range: 1100 yards.

ALL SHIPS DATA
Speed: 5 kts. Course: 058 T. Depth: Surface. Angle: ---

FIRING DATA AND TORPEDO DATA
Type attack: Night radar. Bow tubes.

| | #4 | #3 | #2 |
|:|:|:|:|
| Tubes Fired: | 4 | 3 | 2 |
| Track Angle: | 100 R (est) | 100 R | 100 R |
| Gyro Angle: | 0 | 2 R | 2 L |
| Depth Set: | 6 ft | 6 ft | 6 ft |
| Power: | High | High | High |
| Hit or Miss: | Miss | Miss | Miss |
| Erratic: | No | No | No |
| Mark Torpedo: | 14-3 | 23 | 23 |
| Serial Number: | 20009 | 49242 | 41238 |
| Mark Exploder: | 6-5 | 6-4 | 6-4 |
| Serial Number: | 941 | 10223 | 11594 |
| Actuation Set: | Contact | Contact | Contact |
| Actuation Actual: | Contact | Contact | Contact |
| Mark Warhead: | 16-1 | 16-1 | 16-1 |
| Serial Number: | 12252 | 11773 | 13390 |
| Explosive: | Torpex | Torpex | Torpex |
| Type Spread: | 2 Divergent. | | |
| Sea Condition: | Calm | Calm | Calm |
| Overhaul Activity: | Submarine Base, Pearl Harbor, T.H. | | |
| Remarks: | Target was anchored in a heavy fog 10 miles, | | |
| | bearing 190 T from D.R.B. [UNCLEAR: GUNTO] Light in 17 | | |
| | fathoms of water. Tidal current was setting | | |
| | due south providing basis for track angle | | |
| | estimate. All torpedoes ran N. | | |

- 26 -
Enclosure (A)

— page 40 —
U.S.S. SILIN - Report of 11th War Patrol (cont'd)

(J) 1000 P.M. [UNCLEAR: 1000] [UNCLEAR: 1000]
U.S.S. SILIN Torpedo Attack No. 3 3rd Patrol [UNCLEAR: Report]
Time: 0702(I). Date: 12 July 1944. Lat. 37-29 N. Long. 124-12 E.

[HANDWRITTEN: ATTACK DATA LISTED]
Description: Target similar to YURI MARU (MI 208 J, Pg. 228)
             410 tons (LC)
Ship(s) sunk: None.
Ship(s) damaged: None.
Probably sunk: None.

Target Draft: 12 ft. Course: 290 T. Speed: 9 kts. Range: 1400 yds.

[HANDWRITTEN: RUN ALL D.T.]
Speed: 7 kts. Course: 160 T. Depth: Surface. Angle:
[HANDWRITTEN: FIRE ALL D.T. AND FLOOD L.M.]

Type Attack: Night radar. Stern tube.

Tubes Fired: 10
Gyro Angle: 120 T
Depth Set: 6 ft
Power: High
Hit or Miss: Miss
Magnetic: No
Mark Torpedo: 18-1
Serial Number: 54472
Mark Exploder: 4-2
Serial Number: 7-41
Actuation: Contact
Actuation Actual: Contact
Mark Warhead: 13
Serial Number: 1457
Explosive: Torpex
Type Spread: 0
Sea Condition: Calm
Overhaul Activity: Submarine Base, Pearl Harbor, T.H.

Remarks: The attack was made in a heavy rain squall. A bow
         tube attack was planned but shortly before
         firing a 21 degree turn was made into the squall
         into the problem. The turn to bring the
         stern tubes to bear was made on completion of
         the turn the target was found on its original
         course necessitating firing on a broad track
         at 1400 yards.

- 27 - Enclosure (A)

— page 41 —
U.S.S. SEALLION - Report of FIRST War Patrol (cont'd)
(H) ATTACK DATA - TORPEDO ATTACK NO. 2.

U.S.S. SEALLION Torpedo Attack No. S-2. Patrol No. ONE
Time: 0711(K) Date: 12 July 1944. Lat. 37-24 N. Long. 124-31 E.

DAMAGE INFLICTED

Description: The target was the same as that of Attack No. S-1
Ship(s) Sunk: None.
Ship(s) damaged or probably sunk: None.
Damage determined by: Saw and heard explosion. Radar pip disappeared
at 2000 yards.

TARGET DATA

Target Draft: 12 ft. Course 290 T. Speed: 9 kts. Range: 500 yds.

OWN SHIP DATA

Speed: 12 kts. Course: 025 T. Depth: Surface. Angle:

FIRE CONTROL AND TORPEDO DATA

Type Attack: Night radar. One bow tube.

Tube Fired: 1
Track Angle: 90 T
Gyro Angle: 3 L
Depth Set: 6 ft
Power: High
Hit or Miss: Hit
Erratic: No
Mark Torpedo: 23
Serial Number: 41628
Mark Exploder: 6-4
Serial Number: 1204
Actuation Set: Contact
Actuation Actual: Contact
Mark Warhead: 16-1
Serial Number: 9482
Explosive: Torpex
Type Spread: 0
Sea Condition: Calm
Enemy Activity: Submarine base, Pearl Harbor, T.H.
Remarks: The attack was made in a heavy fog. After
firing the stern tube (Attack No. S-1), 9
minutes were required to regain position and
fire the target at 500 yards. Immediately after
firing, the target loomed out of the mist.
Identification was made at 75 yards off the
target's port quarter.

- 28 - Enclosure (--)

— page 42 —
U.S.S. SILL - Report of FIRST War Patrol (cont'd.)
(H) ATTACK NO. 1. (cont'd.)
U.S.S. SILL. Gun attack No. 1. Patrol No. 1.
Time: 0900 (I). Date: 30 June 1944. Lat. 34-20 N. Long. 125-21 E.

TARGET DATA - DAMAGE INFLICTED
Damaged: one Japanese Sampan - 50 tons. (Identified by
damage determined by: observation of wreckage. nationality of
survivors)

DETAILS OF ACTION
Expended: 4"/50 cal.; 37 rounds H.C., 3 rounds common.
20 mm - 900 rounds.
Average Range - 1000 yards.

(I) MINES:
A total of three mines were sighted as follows:

DATE | LT. | LONG.
---|---|---
2 July 1944 | 34-02 N. | 124-01 E.
9 July 1944 | 34-42 N. | 123-55 E. (Destroyed by
| | gunfire)
9 July 1944 | 34-55 N. | 123-55 E.

All of the mines were spherical with protruding horns
similar to Type 140 in the Mine Identification Pamphlet,
(BuOrd Pamphlet 698). The mines floated with one-third of
their surface exposed and evidently were drifting, however,
we did not approach them closely enough to make sure that
they were not moored. Most probably they have
drifted north-
ward from other fields so that they now are in a steamer lane
where sinkings by our submarines have recently occurred. It
is also possible that these mines were originally set adrift
by the Chinese in the upper reaches of the Yangtze, and
finally made their way to the open sea. Thirdly, the
frequency with which they were sighted and the north-south
trend of their relative positions supports the route
hypothesis that they were planted by the Japanese as an
anti-submarine measure. Shipping meanwhile may be routed
through certain lanes or completely around the field.

- 29 - | inclosure (A)

— page 43 —
U.S.S. SEADRAGON - Report of FIRST War Patr 1 (cont'd.)

(J) ANTI-SUBMARINE MEASURES AND EVASION TACTICS:

1.  Three anti-submarine vessels depth charged us at different
    times. In no case was pin in heard or was in the
    vicinity while we were in the area. The Japs apparently
    relied on listening, dropping, and listening in the vicinity
    of their contacts. The escorts were persistent, however, and well
    stocked with depth charges.

2.  Air patrols were not as frequent as we had been led to
    expect by previous patrol digests. In AREA TWELVE cloudy
    weather helped us in this regard. The two engine land bombers
    we did see were probably in transit. AREA NINE is more closely
    watched.

3.  Two small patrol craft were sighted east of DANJO GUNTO.
    Four trawlers were sighted off the YANGTZE BANKS evidently
    net fishing - they may have been patrolling also.

4.  AREA TWELVE is not considered to be well patrolled - we
    were surprised at the small number of possible patrol contacts.

(K) MAJOR DEFECTS AND DAMAGE:

HYDRAULIC PLANT - The hydraulic plant was very noisy throughout
the patrol because of faulty lubrication of the accumulator
packing.

BOW PLANES - Scores on the bow plane tilting ram caused noisy
operation in spite of all efforts to quiet it.

PITOMETER LOG - The bellows and the pump motor of the pitometer
log failed enroute from PEARL to MIDWAY. They were replaced
at MIDWAY. About four weeks later the log again read inaccurate
because of distorted bellows. Readjustment was made. At
present the log still performs erratically at low submerged
speeds, generally reading too low. The bellows was probably
defective when installed.

PROPELLERS - On two occasions unusual propeller noises were
heard in the after torpedo room. Backing down seemed to elim-
inate or reduce them. Inspection of the screws and shafting by
a diver at night with the aid of a hand lantern revealed no
abnormal conditions. The propellers should be examined in
drydock.

MAIN ENGINES - Enroute to MIDWAY upon completion of the
patrol, bearing metal was found in the crankcase in the course
of a routine examination. The connecting rod bearings of units
#5 and #13 of No. 4 Main Engine had flaked off considerably
after 1100 hours of operation. No other damage was found.
The bearings were removed and the engine placed in commission.

- 30 -

Enclosure (A)

— page 44 —
U.S.S. SEALION - Report of FIRST War Patrol (cont'd.)

(K) MAJOR DEFECTS AND DAMAGE (cont'd.)

FUSL-BALLAST TANKS - The conversion of fuel ballast tanks from
fuel tanks to ballast tanks requires more time than should be
necessary because the blank flanges placed on the 10" blow lines
freeze in place so that they cannot be rotated when removing
them from the 10" blow lines. The nuts and bolts for these flanges
are difficult to remove because of corrosion. It is be-
lieved that the conversion of the tanks could be completed in
much less than the three or four hours now required to convert
#3, #4, and #5 F.B.T's. If three inch gate valves were installed
in the 10" blow line to each tank. Three valves would be required.
Incidentally, it was found that with the fuel ballast tank dry,
a slight increase in speed was achieved.

TBT - The TBT system as now installed is considered very un-
reliable. On several occasions during the patrol, a constant
error between the forward dummy pelorus and the conning tower
repeater was noted on different bearings. This was corrected
by turning the synchro housing until the two were properly
matched. Finally the case was prevented from slipping by the
installation of a set screw. The locking ring, designed to
prevent this slippage did no do so.
Shortly thereafter errors of various magnitude on the
same bearing were noted in the forward TBT. This indicated an
electrical fault. The TBT was taken down, all parts cleaned,
the synchro motor and motor bearing cleaned. When again
installed great care was taken to set up all set screws
tightly. This in no way eliminated or reduced the error.
The above steps were then repeated without satisfactory
results. As a result of this, the TBT's were considered
unreliable and not used.

(L) RADIO:
All radio equipment operated satisfactorily without casualties
or damage. Haiku Fox and Hochwan (NKN) Fox schedules were read-
ily copied although messages from Hochwan could not be decoded
during the first five days of July. Evidently, the Hagelin
lug and pin setting not held by us. Thereafter,
but no message could be deciphered, the read in error was
determined. Transmission of the area departure message
cleared through minor enemy jamming without difficulty.
Voice communications with the TANC and TINS-A while
using minimum power signals faded beyond 4,500 yards. Lower frequen-
cy voice transmission (45 kcs or less) became unintelligible
beyond 8000 yards regardless of the power used.

- 31 -
Enclosure (A)

— page 45 —
37
U.S.S. SEALION - Report of FIRST War Patrol (cont'd.)

(L) SIGNALING: (cont'd.)
MAN EQUIPMENT:
Acting on the recommendation contained in the UNICC 1.S
Ninth Patrol Report, infra-red signalling equipment was
obtained prior to departure from PEARL HARBOR. The self-
contained beacon lacked sufficient range for practical
use. The searchlight with the filter attachment proved
unsatisfactory for the following reasons:
(a) The filter is cumbersome and heavy.
(b) Light leaks around the rim of the filter and
through the drain holes in the searchlight.
(c) The light could not be kept trained on the target.
A bearing circle on the searchlight for setting
radar bearings and a bracket attached to the
searchlight to hold the receiver supplied with
our equipment might eliminate this difficulty.
(d) The loss of light in the red filter does not
insure maximum ranges because of the low power
of the lamp.
In a dark clear night when the target could be seen with
binoculars, the equipment worked rather well. However,
until improvements are made in the apparatus, infra-red
signalling cannot be considered a practical means of
communications. Potentially, it has undoubted value.

(M) RADAR:
In general the operation of both SJ and SD were excellent.
Good ranges were obtained with the SJ. It never failed to
pick up targets before they were sighted from the bridge.
The SD was only operated 12 hours during the patrol with
no casualties.
The SJ was operated 436 hours with two major casualties.
The first was caused by failure of the intensifier high
voltage transformer in the P.P.I. This transformer has
failed three times in 920 hours of operation. It is
believed that the lead out insulators are not of suffici-
ent size. Since we had no more spares we rewound the burned
out transformer. The rewound one failed because the
enamel insulation on our wire disintegrated in the cool-
ing oil. Time spent on transformer 15 man hours. Since
the P.P.I. is of such value it was decided to use the SD
as a power supply for it. A cable capable of carrying
3000 volts DC was made by wrapping portable light cable
with 6 layers of neoprene tape. This cable was run
through the lower conning tower hatch to the SD trans-
mitter in the radio room. The SD was prevented from
operating when supplying power to the PPI by removing
the load from the oscillator plate to C102, setting
the filament variac on zero and removing the receiver
fuses.

- 32 - Enclosure (..)

— page 46 —
U.S.S. SEALION - Report of FIRST War Patrol (cont'd.)

(cont'd.)

(D) RADAR:

A switch was installed to remove the 450 volt supply
to the PPI when the SD was not used as a power supply.
Less than ten minutes were required to put the SD in
full commission. Eighty man hours were required to
complete the job.
The second casualty was caused by the intermittent fail-
ure of coil L1 in the SJ transmitter. This made it almost
impossible to find the cause. The SJ would operate normal
ly for about ½ hour before blowing a fuse. Upon checking the
circuits everything appeared normal and the our operator
stated "on" three minutes and "off" two. As long as the
transmitter didn't get hot conditions were normal.
Finally L1 burned out completely and the trouble was
found easily. Coil L1 and the PPI transformer are not
included as spare parts, and have failed on other
occasions. It is recommended that two each of coil L1
and the PPI transformer be issued as original spares and
that the entire spare parts list be checked, for
completeness.

IFF -

During the evasive maneuvers after the third attack a
noise similar to a 20 mm firing was detected by JP sound
gear. This noise was caused by a broken IFF antenna.
This is the fifth one that has broken in four months.
It appears to break each time we make full speed on four
engines. The antennas are made of very inferior metal
and should be replaced by new ones.

APR -

The APR radar detector was of negligible value,
probably because of our inability to interpret the
received signals. Several hundred different signals
were picked up but none ever materialized into a plane
or ship. A copy of the APR log is being forwarded
under separate cover.

(N) SOUND GEAR AND SOUND CONDITIONS:

The performance of the JP was not consistently good or
consistently bad. Under certain conditions its high
sensitivity to own ship's noise made good bearings
impossible. However, this sensitivity helped us find
topside rattles. Conversely, the JP gave good bearings near
or the periscope bearings under different conditions of
temperature, degree of silence, etc. It is the
opinion of the Sound Officer that the JP complements
the JL-QC and QB.

- 33 - Enclosure (A)

— page 47 —
U.S.S. SEALION - Report of FIRST War Patrol (cont'd.)

(M) SOUND GEAR AND SOUND CONDITIONS (cont'd.)

     Also, a system for power training, and reporting the bear-
ings in the conning tower would increase the tactical
importance and usefulness of JP.
     The JK-QC and QB gear gave average performance until the
training gear failed. The JK-QC hoist developed such noisy
vibration, originating it is believed, in the training
gearing, that it had to be secured. Filing and stoning the
teeth of the bevel gears put it back in service with a
minimum of vibration. The locking rollers failed to roll
at depths below 60 feet. Their lubrication is suspected to
be a factor contributing to the vibration.
     The QB, while it did not fail entirely, also became noisy
and difficult to train. It is suggested that the training
link be given better protection in the form of metal
covers to prevent any foreign matter from dropping in or
heavy objects from striking them. Sound conditions were
poor to fair in the opinion of our best operator, a man
with several years at Key West Sound School.

(N) DENSITY LAYERS:

     All temperature gradients found in the area were strong
negative under a shallow isothermal.

DATE | LATITUDE:LONGITUDE | :DEPTH OF | :SURFACE | :T.MP.GRADIENT:
     |                    | ISOTHERMAL | T.MP.     | :100 DEGREES
     |                    |            |           | :PER 100
-----||||
6/23 | 32-10 N.:129-30 E. | 40'        | 71        | 74 : 4'
6/27 | 32-22 N.:129-00 E. | 40'        | 73        | 66 : 12'
6/30 | 34-15 N.:125-00 E. | 50'        | 71        | 48 : 46'
7/1  | 34-15 N.:123-23 E. | 50'        | 75        | 54 : 42'
7/5  | 30-00 N.:124-00 E. | 10'        | 80        | 64 : 20'
7/7  | 32-20 N.:126-00 E. | 60'        | 75        | 60 : 17'
7/9  | 37-29 N.:123-52 E. | 10'        | 72        | 46 : 47'

- 34 -                                                Enclosure (A)

— page 48 —
U.S.S. SEALION - Report of FIRST War Patrol (cont'd.)

(k) HEALTH, FOOD, AND HABITABILITY:

No infectious diseases, few skin infections and no serious
injuries occurred during the patrol. The health of the crew
is excellent because:(1) only 20 days were spent submerged;
(2) the crew was fresh; (3) the food was varied and well
prepared; (4) habitability was excellent because high humidity
and high temperatures were infrequent.

ICE CREAM FREEZER - The Emery - Thompson freezer is one of
the first of its kind to be installed. Enroute from NEW
LONDON to PEARL HARBOR numerous frozen locks developed. In
the Pearl Harbor machine shop, the original frozen locks
were eliminated, the sprocket spindle lengthened by 3/8"
the sprocket could be attached more securely to it, and the
spindle was lapped in to give it a tight seal when it seats
against the container. The freezer operated satisfactorily on
patrol. Ice cream leaks down into the machinery where it
cannot be cleaned. To eliminate this the following alteration
is suggested: Improve ice cream discharge stopper disc so
that it seals more effectively and provide stops to position
the disc accurately and quickly over the outlet.

(l) PERSONNEL:
(a) Men on board during patrol: 72
(b) Men qualified at start of patrol: 37
(c) Men qualified at end of patrol: 59
(d) Unqualified men making their first patrol: 35
(e) Men advanced in rating during patrol: 16

The Commanding Officer was greatly impressed with the
high performance of duty and general efficiency of officers
and crew on this, the first war patrol. Lieutenant-Commander
H. C. [UNCLEAR: L.L.N.], USN., the Executive Officer, by his organizing
and directive ability, his practical knowledge of fleet
submarines has done much to promote this efficiency - much
credit is due him.

Ensign D. P. BROOKS, USN., the officer placed in charge
of the Radar equipment is deserving of a hearty "well done".
This officer has not received any formal Radar instruction -
has not attended any of the organized Radar Schools. How-
ever, by study and application, he has acquired a good
practical working knowledge of the complexities of the
SJ Radar. Working with the radar technician, he succeeded in
keeping our SJ Radar and P.P.I. in operation under diffi-
cult circumstances. His ingenious use of the high voltage
supply from the SD stack to keep the P.P.I. in commission
is especially noteworthy.

- 35 - Enclosure ( )

— page 49 —
U.S.S. SEALION - Report of FIRST War Patrol (cont'd.)
(Q) PERSONNEL (cont'd.)

The Radar Technician, A. K. GOETZ, RT1, USNR., is
worthy of special commendation. His high sense of respon-
sibility, and devotion to duty was a source of pride to
his Commanding Officer. This was his first war patrol,
his first trip in deep water in any ship - no accounted
successful
GOETZ and Ensign
attacks were only possible because both GOETZ and Ensign
BROOKS had worked some 13 hours the previous day to put
the SJ in commission.

(R) MILES STEAMED - FUEL USED:

PEARL to MIDWAY                               1257 mi.; 12,300 gals.
MIDWAY to AREA NINE                           2825 mi.; 33,043 gals.
In Area                                       3471 mi.; 28,327 gals.
AREA TWELVE to MIDWAY                         2993 mi.; 35,433 gals.

TOTALS                                        10,546 mi. 109,103 gals.

(S) DURATION:

Days enroute to area from PEARL - - - 14
Days in Area 20
Days enroute to MIDWAY - - - - - - - 9
Days submerged 14

(T) FACTORS OF ENDURANCE REMAINING:

TORPEDOES             FUEL             PROVISIONS             PERSONNEL
                                                              FACTOR

0                                      40 days                20 days

Limiting factor this patrol: Torpedoes.

(U) REMARKS:

COORDINATED PATROL:

From 23 June until 3 July SEALION operated jointly
with TANG and TINOSA in AREA NINE and AREA TWELVE. Although
during this period no productive results were gained
by SEALION due to the joint operation, the TANG did
contact one convoy south of NAGASAKI and did make
several "killings" in the sector of the joint patrol
area west of KOKUZAN TO. Those joint operations were
easily arranged at rendezvous points in the area - this
Commanding Officer was pleasantly surprised at the
apparent ease of effecting such rendezvous - we were aid-
ed greatly by very smooth seas, dark nights, and
efficient radar operation.

- 36 -                                          Enclosure (A)

— page 50 —
U.S.S. SEALION - Report of FIRST War Patrol (cont'd.)
(U) REMARKS (cont'd.)

COORDINATED PATROL:
Such informal joint operations are entirely feasible
and it is believed will bring results in areas where or-
ganized wolf packs are not well suited because of topo-
graphy or other limiting circumstances.

MK 18 TORPEDOES:
A word of praise for the trackless feature of this
torpedo. The AK sunk on the second attack, 28 June 1944,
might just as well hit a mine - there was absolutely no
trace of bubbles or track - the sea was a flat calm, too.
The PC boat that attempted A/S measures hadn't the first
clue to go on.
Again, on the unsuccessful attack on the WAKATAKE
destroyer - although 4 torpedoes were fired and passed
close aboard her, she had no notion of the attack. It
gives one an added sense of confidence to know that
your errors won't bring the depth charges thundering
down close by.
I have confidence in the MK 18's ability to take a
gyro angle. The first successful attack was made
with gyros of 80°, 85°, and 83° right.

TORPEX WARHEADS: MK 16-1 Warhead on MK 23 Torpedoes.
MK 18 Warhead on MK 18 Torpedoes.

The Commanding Officer witnessed the breaking up of
three ships, each on receiving one torpedo hit. The
speed with which those ships sank was surprising - the
first, a medium AK sank in two minutes; the second a
large AK hit just inside the stern in two minutes. The
third and fourth ships sank in one minute and two
minutes respectively.
The torpex warhead packs a "wallop".

(V) SPECIAL PARAGRAPH: MK 18-1 TORPEDOES

This vessel carried eight Mk. 18-1 torpedoes in the
after torpedo room. Prior to departure on patrol the
S/M Base type two lead charging panel and the hydrogen
burning circuit were installed.

- 37 - Enclosure (A)

— page 51 —
U.S.S. SEALI - Report of FIRST War Patrol (cont'd)
(V) SPECIAL PARAGRAPH: MK 18-1 TORPEDOES (cont'd)

All eight torpedoes were fired; one hit. Control errors
probably caused the misses. The one that hit sank a medium
sized freighter. As determined by sound, all eight torpedoes
ran normally. The torpedoes left neither wake nor slick. The
only indication that they had been fired was the sound of
the screws as heard on the sound gear. No counter attacks
followed the firing of MK 18 torpedoes despite the fact that four of the
torpedoes were fired at a destroyer.

The MK 18-1 torpedoes did not prove a great deal more
difficult to care for than air torpedoes. The forty-eight
hour routine of ventilating was handled by the men on watch
in the after room. On one occasion we dove while torpedoes
were being ventilated, and the special tail stop served its
purpose well.

All torpedoes were charged once every six days regardless
of their specific gravity. Gravity readings were normally
taken only at the beginning and end of the charge, and front
ends for we had no grounds during the entire time the
torpedoes were aboard. The constant voltage method of char-
ging was used, each charge averaging four or five hours. The
average drop in gravity was twenty five points in one day. The
average drop in gravity was fifty points.
Some torpedoes

— page 52 —
SUBMARINE DIVISION EIGHTY ONE
Care of Fleet Post Office,
San Francisco, California,
21 July 1944.

FB5-81/A16-3
Serial 025
DECLASSIFIED [HANDWRITTEN: I-A-L]

FLEET ADORSEMENT to
SEALION First War Patrol.

From: The Commander Submarine Division EIGHTY-ONE.
To : The Commander-in-Chief, U.S. Fleet.

Via : (1) The Commander Submarine Squadron EIGHT.
(2) The Commander Submarine Force, Pacific
Fleet, Subordinate Command.
(3) The Commander Submarine Forces, Pacific Fleet.
(4) The Commander-in-Chief, U.S. Pacific Fleet.

Subject: U.S.S. SEALION (SS315) - Report of War Patrol
Number One.

1. The First War Patrol of SEALION, also the first
War Patrol for the Commanding Officer as such, was conducted
in the Yellow and East China Seas and comprised a period of
43 days of which 21 were spent in assigned area. The
coverage was excellent and generally was combined with TANG
and TINOSA in adjacent lanes. SEALION arrived at Midway for
refit on 21 July having expended all torpedoes.

2. Eight torpedo attacks were made as follows:-

Attack 1. Gunboat (river type), 3 torpedoes missed
probably due to shallow draft. Mk 18
torpedoes might have been more effective in
this case.

Attack 2. Seizan Maru sunk. One hit obtained with
3 Mk 18 torpedoes on a large track and with
85° gyro angle.

Attack 3. Two salvos of 4 and 2 torpedoes respect-
ively were fired at 2 AKs in a convoy of
9 to 12 ships, resulting in one hit in an
overlapping AK at a range of 4000-5500
yards.

Attack 4. 4 Mk 18 torpedoes were fired at a Wakatake
DD but missed when the target made a large
course change.

Attack 5. In a heavy fog one hit from three torpedoes
fired was obtained in an unidentified target.
Radar pip disappeared from the screen and
sound operators heard characteristic
sinking noises.

— page 54 —
**2FB5-81/.A16-3**
**Serial 025**
**DECLASSIFIED [HANDWRITTEN: I-A-L]**
**Subject: U.S.S. SEALLION (SS315) - Report of War Patrol**
**Number One.**
**

— page 55 —
COMMANDER SUBMARINE SQUADRON EIGHT

c/o Fleet Post Office,
San Francisco, Calif.,
21 July 1944.

FC5-8/A16-3
Serial 078
[STAMP: DECLASSIFIED A-L]

SECOND ENDORSEMENT to
SEALION First War Patrol

From: Commander Submarine Squadron EIGHT.
To : Commander-in-Chief, U. S. Fleet.
Via : (1) Commander Submarine Force, Pacific Fleet.
Subordinate Command.
(2) Commander Submarine Force, Pacific Fleet.
(3) Commander-in-Chief, U. S. Pacific Fleet.

Subject: U.S.S. SEALION (SS315) - First War Patrol -
comment on.

1. Forwarded, concurring in the comments of the
Commander Submarine Division EIGHTY-ONE.

2. The first war patrol of the SEALION, the first
of the Commanding Officer as such, was characterized by aggressive-
ness and excellent area coverage in spite of poor visibility
conditions obtaining over a large part of the area. Splendid
use was made of the SJ radar in navigating in confined waters
and inflicting damage on the enemy under very unfavorable
conditions.

3. The SEALION returned in generally excellent
material condition. Defects noted in the patrol report will be
investigated and remedied during a normal refit by FULTON.

4. The Commanding Officer, officers and crew, are
congratulated on an excellent patrol.

5. It is recommended that SEALION be credited with
inflicting the following damage to the enemy:

| | SUNK | |
| 1 Medium AK (EU) | 4000 tons | - Attack No. 2
| 1 Large AK (EU) | 7500 tons | - Attack No. 3
| 1 Unidentified (UN) | 4000 tons | - Attack No. 5
| 1 AK (Yubari Maru Class) (EC) | 4100 tons | - Attack No. 8
| 1 Sampan (MIS) | 50 tons | - Gun Attack No. 1

| Total | 19,650 tons | |

W. M. DOTY.ES.

— page 56 —
A16-3
Serial: 0122

COMMANDER SUBMARINE FORCE, PACIFIC FLEET, (gr)
SUBORDINATE COMMAND, NAVY NO. 1504.
Care of Fleet Post Office,
San Francisco, California,
24 July 1944.

[STAMP: DECLASSIFIED-A-L]

THIRD ENDORSEMENT to
SEALION First War Patrol

From: The Commander Submarine Force, Pacific Fleet,
Subordinate Command, Navy No. 1504.
To : Commander in Chief, U. S. Fleet.
Via : (1) Commander Submarine Force, Pacific Fleet.
(2) Commander in Chief, U. S. Pacific Fleet.

Subject: U.S.S. SEALION (SS315) - First War Patrol -
comment on.

1. Forwarded, concurring in the remarks contained in
the previous endorsements and with added congratulations to this
fine ship upon the completion of her excellent first patrol.

[SIGNATURE: C. D. RIGGS]

Copy to:
Sealion
Subron 8

— page 57 —
FF12-10/A16-3(15)/(16)
Serial 01535
[STAMP: DECLASSIFIED]
[HANDWRITTEN: 4]
FOURTH ENDORSEMENT to
U.S.S. SEALION (SS315)
First War Patrol.

SUBMARINE FORCE, PACIFIC FLEET
[STAMP: RECEIVED S-C FILES]
[HANDWRITTEN: 23C Room 2055]
[HANDWRITTEN: 13 AUG 1944]
[HANDWRITTEN: 131296]
[HANDWRITTEN: 2 of 5]

mr
Care of Fleet Post Office,
San Francisco, California,
27 July 1944.
NOTE: THIS REPORT WILL BE
DESTROYED PRIOR TO
ENTERING PATROL AREA.

COMSUBSPAC PATROL REPORT NO. 482
U.S.S. SEALION - 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. SEALION (SS315) - Report of First War Patrol.
(8 June to 21 July 1944).

1. The SEALION's first war patrol was the first for the
new Commanding Officer, as such. The patrol was conducted in the East
China Sea and Yellow Sea Areas.

2. The SEALION was one of three submarines forming a
group designated to work in adjacent areas close together in order to
pass contacts from one to another. This system of coordinated sector
patrol worked very efficiently in this particular area where enemy
anti-submarine activity plus the geography of the location would
render coordinated attack groups not wholly practicable. The three
submarines, working at the same time in this area but in different
sectors, kept each other informed of shipping conditions in his own
area. At the same time, they succeeded in sinking 15 ships within a
very short period of time.

3. This first war patrol of the SEALION was well conducted
with excellent area coverage, well planned and aggressive attacks be-
ing the outstanding features of the patrol. Excellent use was made of
all the modern equipment available. Eight aggressive torpedo attacks
were conducted and one gun attack was carried out against a sampan.
Four enemy ships were sunk by torpedoes. Of these attacks, Attack No.
8 was particularly daring and aggressive, when with but one fish left
the SEALION closed to 500 yards in the fog in order to make sure of
the kill.

4. This patrol is designated as "Successful" for Combat
Insignia Award.

5. The Commander Submarine Force, Pacific Fleet, congra-
tulates the Commanding Officer, officers, and crew for this aggressive
and successful war patrol. It is a pleasure to note that the new SEA-
LION has avenged the loss of the old SEALION, by bombing, on December
8, 1942. The SEALION is credited with having inflicted the following
damage upon the enemy:

[HANDWRITTEN: 286]
- 1 -

— page 58 —
FF12-10/A16-3(15)/(16) SUBMARINE FORCE, PACIFIC FLEET
Serial 01535 Care of Fleet Post Office,
San Francisco, California,
CONFIDENTIAL 27 July 1944.

FOURTH ENDORSEMENT to NOTE: THIS REPORT WILL BE
SEALION Report of DESTROYED PRIOR TO
First War Patrol. ENTERING PATROL AREA.

COMSUBSPAC PATROL REPORT NO. 482
U.S.S. SEALION - FIRST WAR PATROL.

Subject: . . . U.S.S. SEALION (SS315) - Report of First War Patrol.
(8 June to 21 July 1944).

— page 59 —
U.S.S. SEALION (SS315)

S315/A16-3/WFO
serial (010-44)
[STAMP: DECLASSIFIED]
c/o Fleet Post Office,
San Francisco, Calif.
30 September 1944.
DECLASSIFIED ART. 0445, OPNAVINST/5510.1C
BY [HANDWRITTEN: D1095H] DATE [HANDWRITTEN: 7/3/78]

From: The Commanding Officer.
To : (1) The Commander-in-Chief, United States Fleet.
Via : (2) The Commander Submarine Division TWO HUNDRED TWENTY-TWO.
(3) The Commander Submarine Squadron TWENTY-TWO.
(4) The Commander Submarine Force, Pacific Fleet.
(5) The Commander-in-Chief, United States Pacific Fleet.

Subject: U.S.S. SEALION - Report of War Patrol Number TWO.

Enclosures: (A) Subject Report.
(B) Track Chart for ComSubPac.

1. Enclosure (A), covering the SECOND War Patrol of
this vessel, conducted in LUZON STRAIT and westward to the HAINAN
COAST, during the period 17 August to 30 September 1944.

[SIGNATURE: E. T. Reich]
E. T. REICH.

[HANDWRITTEN: FILMED]
[HANDWRITTEN: 91536]

— page 60 —
U.S.S. SEALION - Report of SECOND War Patrol.

(A) PROLOGUE:

U.S.S. SEALION arrived MIDWAY ISLAND for refit on 21 July
1944 on completion of First War Patrol. Refit was completed at the
U.S.S. FULTON and Submarine Division EIGHTY-ONE Relief Crew on 7
August 1944. The following major work items were accomplished.

1.  Docking in ARD-8; routine dock work and application of a
    coat of cold plastic bottom paint.
2.  V.H.F. equipment installed.
3.  APD-1 Pulse Analyser equipment installed.
4.  Slotted type SJ Radar reflector installed.
5.  Remainder of MK-18 torpedo charging and ventilating
    equipment installed in the forward torpedo room.

Post repair trials, sound tests, and training exercises were
conducted during the period, 8 August - 11 August, SEALION ready
for sea on 15 August 1944, carrying 24 Mk 18-1 torpedoes. On 16
August 1944, Lieutenant (junior grade) Frederick S. HOLT, E-V(RS),
USNR, reported aboard for duty.

(B) NARRATIVE:

17 August 1944

0800 (Y) Departed MIDWAY ISLAND for SECOND War Patrol pursuant to
          ComSubPac UpOrd 272-44, proceeding in company with U.S.S.
          GROWLER and U.S.S. PAMPANITO, comprising the "Ben's
          Busters". Coordinated Attack Group, Lieut-Cmdr. T. B.
          OAKLEY, Jr., USN, in GROWLER, Group Commander. On
          clearing channel SEALION and PAMPANITO took cruising
          stations on GROWLER'S right and left flank respectively,
          distance 10 miles, speed of advance twelve knots.

19 August 1944

0001 (K) Crossed international date line. 18 August omitted from
          the calendar.

20-22 August 1944

          Enroute to patrol area.

23 August 1944

1930 (L) Entered east-west safety lane north of SAIPAN.

25 August 1944

1229 (K) Sighted unidentified plane (probably a PBM) (Aircraft
          Contact #1), distance 10 miles. Submerged.

1350 (K) Surfaced.
[STAMP: DEC]

— page 61 —
.S.S. SEALLION - Report of SECOND War Patrol (cont'd.)

6 August 1944

110 (K) Sighted unidentified plane (probably a PBM) (aircraft
          Contact 2), distance five miles. Submerged.

1139 (K) Surfaced.

27 August 1944

1620 (I) Received permission from Group Commander to proceed
          independently to assigned patrol sector in Area 11 Detect.

28 August 1944

1000 (I) Entered Area 11 Defer.

29 August 1944

0600 (I) Entered Area 11 Detect.

1105 (I) Submerged in assigned patrol sector.

1923 (I) Surfaced.

30 August 1944

0613 (I) Submerged in assigned patrol sector.

0745 (I) Made landfall on KOTO SHO, bearing 286° T, distance 40
          miles.

1944 (I) Surfaced. Proceeding towards BASHI CHANNEL.

31 August 1944

0202 (I) Exchanged S.J. recognition signals with a friendly sub-
          marine, suspected to be the PAMPANITO, who bore 270° T,
          distance 5 miles.

TORPEDO ATTACKS NUMBER ONE AND TWO
Latitude 21-28 N. Longitude 121-19 E.
One Large A.O. Sunk.

0223 (I) Sighted smoke bearing 300° T. Visibility was excellent -
          bright moonlight. PAMPANITO visible in binoculars at 6000
          yards. She was on a southerly course, probably tracking
          the target whose smoke we had just sighted. Attempts to
          communicate with PAMPANITO using both VHF and SJ were
          unsuccessful. SEALLION decided to close target to radar
          range, and then track the target well out on the port
          flank and quarter until moonset at about 0330 (I). The
          target's course was assumed to be southerly.

- 2 -

— page 62 —
.S. SEALION - Report of SECOND War Patrol (cont'd.)
31 August 1944

0241 (I) Made radar contact on bearing 310° T, range 23,000 yards
           and commenced tracking. Radar screen showed about eight
           large and three small pips.

0320 (I) The moon was now low on the horizon, partially obscured
           by clouds. Visibility was still good. Convoy was on our
           starboard quarter bearing 302° T, range 17,500 yards.
           SEALION was bearing 213° T, range 8,000 yards. SEALION
           was on course 180° T.

0325 (I) Sighted a black cylindrical shape about 30 - 40 feet long
           moving through the water about 500 yards off the starboard
           bow. A small superstructure was observed by the quarter-
           master and the Officer-of-the-Deck. I was immediately
           certain that the object was a midget submarine; the O.O.D.
           and the quartermaster verified my conviction. Just at
           this instant a brilliant flare in the direction of the
           convoy illuminated the sky and sea. Then radar picked up
           a small target, probably another submarine bearing 195° T,
           range 8,000 yards and closing. Increased speed to flank
           and changed course to the eastward and then to the north-
           ward to open out on unidentified radar contact, avoid the
           midget submarine, and to appraise the situation in
           general. The moon was just setting. Visibility was
           rapidly decreasing.

0328 (I) Slowed and resumed tracking target group.

0330 (I) The convoy had altered course to 055° T, placing us on
           the starboard flank. The flare proved to be the initial
           explosion of a torpedoed ship which now burned with an
           intense flame and heavy black smoke - silhouettes of
           ships could be seen against the backdrop of the burning
           ship.

0350 (I) The convoy began to alter course to the eastward making
           about 9 knots good on base course 110° T. The bearing
           was now 320° T, range 12,000 yards. Apparently the attack
           at 0325 (I) had dispersed the convoy, for there were now
           about four groups of two or more ships each. The leading
           group (bearing 320° T) consisted of two large ships and
           one or two escorts, the next group (bearing 310° T), about
           3000 yards astern of the leading group consisted of about
           three ships and an escort or two. Off to the north-
           westward were several other ships and last on bearing
           295° T was the burning ship.

                                  - 3 -                     Enclosure (A)

— page 63 —
U.S.S. SEALION - Report of SECOND War Patrol (cont'd.)

31 August 1944

0406 (I) The leading group of ships had again changed course to the
     right to 135° T, placing SEALION almost directly ahead at
     a range of 11,000 yards. We selected the largest ship of
     this leading group as our target, intending to cross
     ahead to gain a position on his port beam and come in on
     a port track.

0411 (I) Target zigged off to the eastward again, giving us a
     thirty degree starboard angle on the bow. Thereupon we
     decided to run down the targets starboard side, and cut
     in for attack from the starboard flank.

0419 (I) The target group now was heading almost due east, showing
     a 70° degree starboard track, range 8,000 yards. The
     lone escort was patrolling up and down the starboard
     side. Changed course to 010° T and started in at 18 kts.

0427 (I) Range closed to 4000 yards, target zigging radically, now
     showing a 120 starboard angle on the bow. The escort
     now in position ahead of leading target group. The two
     large ships were soon to be an AK and an AO, in a line
     of bearing - the AK on the AO's starboard bow and over-
     lapping.

0429 (I) Target group changed course to about 100° T.

0430 (I) The torpedo run was now 2500 yards, track angle 80 - 90
     starboard. Slowed to two-thirds speed. The bow of the
     AK nearly overlapped the stern of the AO.

0431 (I) Fired six torpedoes on T.B.T. bearings, using the bow of
     the AO as point of aim. (Torpedo Attack No. ONE).
     SEALION speed through water about 15 knots at instant
     of firing.

0431½ (I) Leading ship blew its whistle.

0432 (I) Changed course to 240° T to bring stern tubes to bear.

0435 (I) Fired four torpedoes from the stern tubes at the AO
     range was now 1600 yards, track angle 120 starboard.
     (Torpedo Attack No. TWO).

0436 (I) Lights flashed on the target group and a red rocket went
     up.

0437 (I) Heard and saw two explosions in the AO followed by a
     billow of black smoke. Tracers sprayed the water in
     general direction, deck guns on at least three ships
     commenced firing and a succession of heavy depth charges
     commenced exploding. Radar reported target pip getting
     smaller, range 5,000 yards.

- 4 - Enclosure (A)

— page 64 —
U.S.S. SEALLION - Report of SECOND War Patrol (cont'd.)
31 August 1944 - - -

0440 (I) Target pip split on radar screen and disappeared complete-
          ly one minute later at a range of 6,000 yards.

0451 (I) The eastern sky was beginning to pale. Insufficient
          darkness remained to complete the reload and get in
          another attack. SEALLION headed south, to gain position
          for a daylight submerged attack, should the convoy
          resume its southerly course.

0452 (I) Sighted a green flare bearing 210° T.

0454 (I) Changed course to 210° T.

0455 (I) S.J. radar picked up an aircraft pip bearing 21C° T,
          range opening.

0500 (I) Changed course to 135° T to close convoy's probable track.

0558 (I) Submerged.

TORPEDO ATTACKS NUMBERS THREE AND FOUR
Latitude 21-08 N. Longitude 120-26 E.
One A.P. and one D.D. Sunk.

0615 (I) Sighted smoke of convoy bearing 243° T. (Ship Contact #2)
          Came to normal approach course, speed 6 knots - ran at
          6 knots for almost an hour to close.

0707 (I) Convoy now visible, consisting of six merchant ships
          roughly in column formation with a large O in van.
          No tankers were observed in this convoy at this time,
          strengthening our belief that the tanker we hit at
          0437 (I) had really sunk. A large DD - at first
          mistaken for a seventh merchantman - led the parade,
          patrolling ahead. The base course was probably about
          160° T, all targets zigzagging radically, angles on
          bow varying from 10 port to 70 starboard; speed of
          convoy about 8 knots; of escort, 10 knots.

0708 (I) Changed course to 015° T to close targets.

0715 (I) The leading DD was identified as a UN-1 Class Destroyer.
          Changed course to 060° T.

0719 (I) Escort zigged away to course 152° T giving us a 90 star-
          board track.

0720 (I) Fired three torpedoes from the bow tubes at the destroyer,
          range 2900 yards (Torpedo Attack No. THREE).

- 5 -

Enclosure (A)

— page 65 —
.S.S. SEALION - Report of SECOND War Patrol (cont'd.)

1 August 1944

0721 (I) Shifted point of aim to the largest ship of the middle
          column, a medium AP, and fired the three remaining
          torpedoes from the bow tubes (Torpedo Attack N. FOUR).

0722 (I) Two torpedoes exploded. Temporarily lost depth control -
          went to 70 feet.

0724 (I) Thirty seconds after the two explosions a third very loud
          explosion was heard, probably caused by the DD's
          magazines or boilers blowing up.

0725 (I) At the instant the torpedoes were due to cross the AP's
          track three timed explosions were heard. Regained depth
          control, back to periscope depth.

0726 (I) The destroyer was stopped, a heavy cloud of white smoke
          obscured both the destroyer and the AP. A "Betty" or "Val"
          type plane was circling the stricken ships. A succession
          of three or four underwater explosions, similar to depth
          charges or torpedoes exploding was heard. Lost depth
          control temporarily.

0726 (I) Came back to periscope depth for a quick observation.
          Black and white smoke completely obscured the DD and AP.
          Again the scope went under and at that instant a heavy
          explosion jarred the boat severely. An air escort had
          dropped one on us very close. Went deep and rigged ship
          for depth charge and commenced evasion on southerly
          courses in order to remain as close to the convoy as
          possible.

0727 (I) Sound reported characteristic sounds of a ship breaking
          up as we went deep.

0730 (I) - 0920 (I)
          Commenced evasion tactics. At least one escort still had
          depth charges. Pinging was heard almost continuously on
          17 KC - the first SEALION has heard. A total of 25 depth
          charges were dropped close aboard during the first half
          hour after the attack. During the next hour and a half
          another twenty five charges exploded at various ranges.
          Some of the charges in this latter group might have been
          directed at another submarine or have been distant
          torpedo explosions.

0956 (I) Heard distant underwater explosion.

                                                              - 6 -
                                                              Enclosure (A)

— page 66 —
U.S.S. SEALION - Report of SECOND War Patrol (cont'd.)

31 August 1944

1002 (I) Heard distant underwater explosion.
1012 (I) Heard distant underwater explosion.
1123 (I) Heard distant underwater explosion.
1127 (I) Came to periscope depth for an observation. To the north
          were two or three columns of smoke and to the south
          an other was sighted. A "Val" type plane was also seen
          passing down our starboard side on course 000° T at
          500 yards. (Aircraft Contact #3) It turned toward us
          and we went deep again, and continued on the southward.

TORPEDO ATTACK NUMBER FIVE
Lat: 19-55 N. Long: 120-16.5 E.
No Damage Inflicted.

1707 (I) Sighted smoke bearing 140° T. (Ship Contact #3)
1715 (I) Sighted mast bearing 139° T, target unidentified, angle
          on the bow zero. Commenced approach.
1803 (I) Target at first appeared to be a merchantman but as he
          approached, he was made out to be an anti-submarine
          vessel with high forecastle, poop, bridge structure,
          one stack. A deck gun was mounted forward and a range
          finder located atop the pilot house. He was steering
          a steady course, 330° T, at speed 12 knots.
1815 (I) Came to course 055° T and fired three torpedoes, set at
          3 feet, from the bow tubes, run 1500 yards, gyros, 35L,
          track angle 135 port. (Torpedo Attack No. FIVE)
1817 (I) A lookout on the bow of the target pointed to the star-
          board bow at about the time the torpedoes were due to
          hit. The target turned to the left and headed toward us.
          Went deep and rigged for depth charge attack.
1820 (I) The target passed down the port side and across the stern.
1823 (I) Two depth charges exploded on the starboard quarter -
          not too close.
1830 (I) Sound reported that the target seemed to be going away.
          Evidently he was not certain that a submarine was in
          the immediate vicinity.

- 7 - Enclosure (A)

— page 67 —
U.S.S. SEALION - Report of SECOND War Patrol (cont'd.)

31 August 1944

1831 (I) - 1911 (I).
                                        Heard a total of ten underwater explosions of widely
                                        differing intensities. It was difficult to tell whether
                                        SEALION, another submarine, or nothing at all was the
                                        target during these apparently random attacks.

2028 (I) Surfaced. Five torpedoes, one forward and four aft
         remained after the day's shooting. Because of the
         unfavorable torpedo distribution and because we were only
         granted three days in the area, we decided to request permission
         to return to SAIPAN for fuel and torpedoes. Proceeded
         through PASHI CHANNEL and headed toward the safety lane.
         Bright moonlight prevailed.

2227 (I) Aircraft pip appeared on P.P.I. screen, at 12,000 yards,
         coming in fast. (Aircraft Contact #4) Submerged.
         Tracked aircraft in to 5200 when radar man went under
         on dive.

2318 (I) Surfaced. All clear.

2338 (I) Transmitted Serial ONE to ComSubPac. An attempt to
         communicate with the Group Commander in GROWLER proved
         unsuccessful.

1 September 1944

0604 (I) Submerged on southern edge of safety lane running
         between areas 11 Delote and 11 Destroy, near 123 E.
         longitude. No reply to our dispatch had been received.

1939 (I) Surfaced. Proceeded in the direction of SAIPAN at 10
         knots, pending receipt of orders.

2150 (I) Inferred from ComSubPac Serial 81 NAN that permission
         had been granted to proceed to SAIPAN, so continued on
         course 105° T, at 17 knots.

2 September 1944

1322 (I) Enroute to SAIPAN. Sighted "Betty" type plane. (air-
         craft Contact #5) Submerged.

1344 (I) Surfaced. All clear.

1615 (I) Sighted "Betty" type plane. (Aircraft Contact #6)
         Submerged.

1652 (I) Surfaced.

                                        - 8 -                                 Enclosure (A)

— page 68 —
.S.S. SEALION - Report of SECOND War Patrol (cont'd.)
3 September 1944

0646 (I) Sighted an unidentified, low wing single engined, mono-
           plane, similar to an S.B.D. (Aircraft Contact #7).
           Submerged.

0716 (I) Surfaced. Decided to report aircraft contact to ComSubPac.
           At the time of sighting we were far beyond range of small
           land based planes.

0900 (I) - 1230 (I)
           Attempted to transmit contact report to ComSubPac and
           rendezvous message to ComTaskGroup 17.7. The message
           was sent on several different frequencies but because of
           poor atmospheric conditions and heavy circuit traffic
           the message could not get through. (See Radio - Section I)

1610 (I) Radio HAIKU informed SEALION to proceed with transmission.

1630 (I) Transmission of contact message and rendezvous message
           finally completed and receipt obtained from an unident-
           ified shore station.

4 September 1944

0745 (I) Sighted aircraft. Identified as friendly.

1000 (I) Entered safety lane to west of SAIPAN.

5 September 1944

0400 (I) Arrived at eastern end of safety lane.

0423 (I) Rendezvoused with U.S.S. CHIEF (AM315). Set course for
           SAIPAN under escort.

0947 (I) Moored port side to U.S.S. HOLLAND at SAIPAN.

6 September 1944

           Moored alongside U.S.S. HOLLAND in TANAPAG HARBOR, SAIPAN
           ISLAND. Received 15 Mk. 14-3A torpedoes from HOLLAND
           for the forward torpedo room and 4 Mk. 18-1 torpedoes
           from the U.S.S. BILLFISH for the after torpedo room. 8
           Mk 18-1 torpedoes loaded aft; 1 Mark 18-1 torpedo
           loaded forward. Fueled to capacity. Completed minor
           repairs.

- 9 -
Enclosure (A)

— page 69 —
U.S.S. SEALION - Report of SECOND War Patrol (cont'd.)

7 September 1944
0650 (I) Got underway in accordance with ComSubPac OpOrd 272-44
         and ComSubPac Despatch 311823 to rejoin "Ben's Busters"
         Coordinated Attack Group. Escorted by PC 581.
1155 (I) Entered safety lane west of SAIPAN. Released escort,
         proceeding independently.

8 September 1944
0400 (I) Arrived at western end of safety lane.

9 September 1944
         Enroute to Area 11 Dest'y. Speed of advance 16.5 knots.

10 September 1944
1000 (I) Entered Area 11 Dest'y. Speed of advance 17.1 knots.
         SEALION hopes to rendezvous with GROWLER and PAMPANITO
         at 2200 (I), 11 September 1944, in Area 11 Dest'y.
1735 (I) Sighted BABUYAN ISLAND, bearing 260° T, distance 50 mi.
1825 (I) Submerged 30 miles eastward of BALINTANG ISLAND.
1935 (I) Surfaced.
2100 (I) Made passage of BALINTANG CHANNEL.
2145 (I) Exchanged recognition signals by S.J. radar with a
         friendly submarine.

11 September 1944
1000 (I) Entered Area 11 Dest'y.
1836 (I) Sighted unidentified submarine hull down bearing 156° T
         Changed course to close, assuming contact to be friendly.
         Failed to reestablish contact.
2002 (I) Exchanged recognition signals with GROWLER and closed
         to 100 yards for voice communications, via megaphone.
2115 (I) Rendezvous completed, standing by for contact with
         PAMPANITO.
2130 (I) PAMPANITO and GROWLER effected rendezvous.

- 10 - Enclosure (A)

— page 70 —
U.S.S. SEALION - Report of SECOND War Patrol (cont'd.)

1 September 1944

2230 (I) PAMPANITO, GROWLER, and SEALION formed scouting line 123°
           T, 303° T, order of ships from east to west PAMPANITO,
           GROWLER, and SEALION, interval 8 miles, direction of
           advance 213° T, speed of advance, 13 knots.

12 September 1944

TORPEDO ATTACK NO. SIX
Lat: 18-08 N. Long: 114-43 E.
No Damage Inflicted

0125 (I) Obtained radar contact bearing 150° T, range 23,000 yds.
           Commenced tracking. (Ship Contact #4)

0200 (I) The target group, consisting of at least nine large
           vessels and an uncertain number of smaller escort
           vessels, bore 189° T, range 13,000 yards, course
           approximately 050° T, speed 11 knots. A small pip well
           out in front of the convoy was rapidly closing in. This
           was probably GROWLER coming in for her attack. SEALION
           also received PAMPANITO'S contact report at about this
           time.

0201 (I) Observed an explosive flash in the direction of the
           convoy and heard at least two explosive sounds immediately
           afterward.

0203 (I) Observed gunfire and tracers in the convoy's direction.

0208 (I) Sighted red flare over the convoy.

0210 (I) Convoy now was bearing 200° T, range 10,000 yards
           indicating that the convoy had changed course to the
           northwest.

0233 (I) The range to the convoy had now closed to 7,000 yards
           bearing 194° T, angle on the bow was 70° starboard. Target
           course 290° T. A quarter moon was just beginning to rise.
           The A.P.I. scope showed the convoy bunched together
           in an irregular formation. On the near flank of the convoy
           were nearly in column with an escort in the van. On the far
           side of the convoy were five other large ships and one or
           two smaller ships which were probably escorts. SEALION
           changed course to 230° T and headed for the leading ship
           in the near column which could be seen in the binoculars
           as a large AK or AO with engines aft. The escort was almost
           dead ahead of our target.

- 11 -                                            Enclosure (A)

— page 71 —
.S.S. SEALLION - Report of SECOND War Patrol (cont'd.)
12 September 1944

0238 (I) When the range had closed to 5,600 yards, the convoy
           zigged radically toward us.

0243 (I) SEALLION changed course to 020° T to run with the convoy
           which now had closed the range to 4,000 yards and was
           showing a 20° - 30° port angle on the bow. The escort
           which had been in the van of the column was now on the
           port flank of our target and bore 230° relative. SEALLION
           was behind the target and the escort, on the same course
           and about 4,000 yards ahead. The moon had just risen
           and visibility was fair to good. Target course 030° T,
           speed 11 knots.

0248 (I) Swung right to close and attack the large target on a
           50 degree port track. In so doing we threw our full
           silhouette across the flanking escort's bow.

0250 (I) With the target bearing 026° relative, range 3000 yards,
           commenced firing the bow tubes, gyros 17 right, track
           angle 45° port. After firing the first torpedo the
           contactors on the forward gyro regulator froze and
           slowed the gyro left against the stops. The second
           torpedo was fired with about a 90 left gyro. The range
           to the escort on our starboard beam had now closed to
           about 2500 yards. Until now we had not been sighted.
           Fire was checked and the attack broken off.

0251 (I) Attempted to get clear of the convoy by changing course
           to the left and going ahead at flank speed.

0252 (I) SEALLION sighted by escort who began chase - escort turned
           on red truck light.

0253 (I) Two escorts commenced firing deck guns and machine guns.

0253 (I) - 0312 (I)
           Under fire of two escort vessels. Range at start of chase
           2100 yards, opened slowly. Escorts fired a large gun -
           4" or 5" which showed a brilliant white flash when fired,
           and 20 m.m. tracer. Shells passed overhead and drifted
           off to starboard as SEALLION changed course slowly
           left. We worked up to about 19.2 knots on the getaway.
           It was close and, for awhile, too hot for comfort.

0326 (I) Escort ceased firing, gave up chase and rejoined convoy.
           Commenced tracking convoy. Completed reload of torpedo
           tubes five and six.

- 12 -
Enclosure (A)

— page 72 —
.S.S. SEALION - Report of SECOND War Patrol (cont'd.)

12 September 1944

TORPEDO ATTACK No. SEVEN
Lat: 18-42 N. Long: 114-30 E.
one large AO, two large AP's sunk.

0330 (I) The convoy now bore 174° T range 10,000 yards. The
          position was not greatly changed.

0331 (I) - 0501 (I)

          Tracking convoy from ahead attempting to ascertain the
          base course and to gain a position on the port bow of the
          convoy in order to deliver a submerged attack down moon.
          The base course approximated 320° T, but, because of the
          radical zig to the right which had upset our calculations
          on the earlier attack we hesitated to be drawn too far
          to the westward where a radical change of course in the
          direction of the original base course of 030° T
          would make it impossible for us to close the target
          submerged.

0502 (I) The convoy still held to a northwesterly course. The
          entire formation was zig-zagging radically between 020° T
          and 290° T, speed 10.5 knots. The formation now was
          bearing 180° T, range 10,000 yards, placing SEALION
          about 4,000 yards off the convoy's estimated track.
          320° T. From this position, we could gain an attacking
          position if the convoy held on to its base course or if
          it changed course to the old base course of 030° T.
          submerged for a night radar-periscope attack. At the
          time of submerging the angle on the bow of the leading
          ship in the near column was 30° starboard, range about
          8,000 yards.

0509 (I) - 0513 (I)

          At radar depth, closing the target.

0514 (I) Went down to periscope depth when range had closed to
          5600 yards. Periscope visibility was only fair, but the
          targets could be made out at this range. Estimated that
          SEALION was now 2700 yards off the track. A column
          of four (4) ships headed by an escort now comprised the
          right flank of the convoy. A large oiler, the second ship
          in column was selected as the target. Changed course
          to 230° T. The gyro regulator contactors froze again.
          Latched gyros by hand.

- 13 - Enclosure (A)

— page 73 —
U.S.S. SEALION - Report of SECOND War Patrol (cont'd.)
12 September 1944

0522 (I) Fired three torpedoes at the large AO in the right hand
          column of the convoy, track angle 80° starboard, gyro
          angles 5° left, torpedo run 2500 yards. (Torpedo Attack
          No. SEVEN)
0523 (I) Swung to the left to bring the bow tubes to bear on a
          large AP, the last ship in the near column.
0524 (I) Heard three timed torpedo explosions. The AO broke
          immediately into flame, illuminating the second target.
          (See remarks, Torpedo Attack No. SEVEN)
0525 (I) Steadied on course 210° T and fired three torpedoes at
          the large AP track angle 60° starboard, gyro angles 17
          left, torpedo run 1100 yards.
0526 (I) Heard two timed explosions in the AP. Sound reported
          fast screws coming in on the starboard bow. Submerged
          to 250 feet and rigged ship for depth charge attack.
          Commenced evasive attacks on southerly and easterly
          courses.
0530 (I) Escort drew up our starboard side and dropped six depth
          charges well out. Went to 350 feet.
0537 (I) Screw noises could be heard in the direction of the
          convoy and on both beams. Started up to periscope depth.
0539 (I) High speed screws were heard coming in on the starboard
          quarter.
0540 (I) Six depth charges exploded close aboard. Went to 400
          feet and changed course 90° to the right.
0541 (I) Heard echo ranging pinging on the starboard quarter -
          long scale, loud and sharp.
0550 (I) Pinging continued, no screw noises, started laboriously
          up to periscope depth. Screws were immediately heard
          coming in on the starboard quarter. Leveled off at 350
          feet.
0600 (I) Heard ten or twelve depth charges exploding well out.
0625 (I) Started up to periscope depth - forty five minutes
          before sunrise. Except for distant pinging and screw
          noises on our starboard quarter and port beam, all had
          been quiet for twenty-five minutes.

                                  - 14 -                                  Enclosure (A)

— page 74 —
U.S.S. SEALION - Report of SECOND War Patrol (cont'd.)
12 September 1944

0630 (I) Once more high speed screws were heard well out but coming
          in fast on a constant bearing.

0632 (I) Heard pinging loud and sharp in the direction of the
          screws. Leveled off.

0635 (I) Screws very close, bearing constant. It seemed to us
          that the escort had picked up an oil slick at daybreak
          and that we were in for a rough time.

0640 (I) Screws began to open out. Pinging stopped. We breathed
          easier.

0720 (I) SEALION had dropped to 525 feet. Started up to periscope
          depth again. Pinging still heard astern in the direction
          of the attack.

0804 (I) Reached periscope depth. Observed a burning vessel, well
          down in the water - spars showing - target area obscured
          by smoke and fire - and the masts of an escort who was
          doing the pinging. A total of 31 depth charges or
          other explosives had been heard. An inspection plate in
          the hull induction piping had curled its gasket, causing
          a small leak. No other damage was incurred.

0926 (I) Surfaced. Nothing in sight, clearing the area on course
          090 at 17 knots.

0935 (I) Sighted a corvette (funnel aft) bearing 104° T, range 7
          miles, heading northeast. (Ship Contact #5) Changed
          course to 000° T in order to keep to the north of the
          convoy.

0946 (I) Sighted a large patrol vessel (probably a destroyer)
          eight miles dead ahead, angle on the bow 20° starboard,
          then 0°. (Ship Contact #6) Changed course to 250° T.
          The corvette had now gone out of sight.

0952 (I) Changed course to 180° T. The patrol to the north now
          showed an angle on the bow of 20° port. Evidently
          SEALION had not been sighted. I presumed that the
          escorts were patrolling a line to the northeast of the
          convoy's position at the time of the attack. In view of
          the expected route of the convoy through the FORMOSA STRAITS
          to TAKAO, this presumption seemed most likely.
          Accordingly SEALION decided to get around the patrols by
          heading southeast, east, northeast, and finally north.

                                - 15 -
                                                          Enclosure (A)

— page 75 —
U.S.S. SEALLION - Report of SECOND War Patrol (cont'd.)
12 September 1944

1202 (I) Received PAMPANITO despatch reporting convoy last sighted
        at 1100, bearing 295° T, 62 miles from our present
        position and heading west. Decided to adhere to our plan
        to get to the northeast of the convoy, anticipating a
        course change by the convoy to head for FORMOSA STRAITS.

1329 (I) SEALLION'S position now 40 miles, bearing 035° T from the
        scene of the attack, course 000° T speed 17 knots.
        Sighted tops of patrol vessel bearing 324° T distance 10
        miles (Ship Contact #7). This further strengthened our
        belief that the convoy was going to eventually head
        northeast. Changed course to 090° to go around patrol
        vessel.

1440 (I) Changed course to north.

1846 (I) Headed west to attempt interception of convoy, SEALLION
        was 118 miles bearing 050° T from last reported position
        of the convoy.

13 September 1944

0140 (I) Received PAMPANITO despatch reporting convoy last sighted
        heading north lat. 19-08 N. long. 11-58 E; bearing 225° T,
        172 miles from SEALLION position. The convoy evidently
        had remained on a westerly course throughout the day.
        Decided to continue on to the westward to explore coast
        of HAINAN and possibly regain contact with convoy should
        it change course to the eastward.

0759 (I) Received ComSubPac's despatch 122007, ordering Commanding
        Officer of SEALLION to function as Attack Group Commander.
        SEALLION informed PAMPANITO of intention to patrol off
        HAINAN and directed PAMPANITO to patrol independently.

2100 (I) Sighted the glow of a burning ship bearing 170° T.
        Changed course to close. SEALLION position: lat. 19-54 N.,
        long. 111-43 E.

2330 (I) Closed burning ship to 5,000 yards: lat. 19-27 N., long.
        111-49 E. The ship was listed 45° to starboard, screws
        and rudder well out of the water and burning with a clear
        bright flame generating a moderate amount of grayish white
        smoke. Off the starboard side, for a distance of about
        200 yards, the water was ablaze with weak flames just
        as if a thick fluid had overflowed the starboard gunwhale
        like molasses from a can. SEALLION was about thirteen
        miles to the northwest of the last position reported by
        PAMPANITO. The ship appeared a total loss, completely
        abandoned by the Japs, and not worth the torpedoes it
        would take to sink her.

- 16 -                                                Enclosure (A)

— page 76 —
U.S.S. SEALION - Report of SECOND War Patrol (cont'd.)

13 September 1944

2333 (I) Cleared the area to the northward to arrive on station
          for submerged patrol off the approaches to HAINAN STRAIT.

14 September 1944

0637 (I) Sighted fishing boat on the port bow, changed course to
          avoid.

0650 (I) Submerged 60 miles due east of HAINAN STRAIT.

2006 (I) Surfaced and started southward along the east coast of
          HAINAN.

2042 (I) The glow of the burning Jap was still bright and remained
          visible throughout the night.

15 September 1944

0320 (I) Changed course to 090° T and increased speed to 18 knots
          to join PAMPANITO for coordinated patrol in the eastern
          part of area 11 Destroy.

0500 (I) Exchanged position reports with PAMPANITO and arranged
          for rendezvous.

0700 (I) Rendezvoused with PAMPANITO: lat. 18-59 N., long. 111-
          53 E. Prescribed search and attack plans for 15 and 16
          September 1944. Communication was by megaphone.

0715 (I) Formed scouting line 000° T - 180° T, interval 20 miles,
          direction of advance 090° T, speed of advance 12 knots.
          SEALION to the north, PAMPANITO to the south.

1706 (I) Received PAMPANITO'S request for assistance to rescue
          English and Australian prisoners of war in the water at
          lat. 18-38 N., long. 111-02 E. Headed for this area at
          18 knots.

1750 (I) Sighted much debris beginning at lat. 18-44 N., long.
          114-09 E. and extending southwestward to the horizon.

1806 (I) Passed through heavy diesel oil slick.

1820 (I) Passed the first of many dead bodies floating on the
          surface. Sighted PAMPANITO bearing 225° T, distance 12
          miles. SEALION'S position, lat. 18-41 N., long. 114-05 E.

- 17 -                                                Enclosure (A)

— page 77 —
.S.S. SEALLION - Report of SECOND War Patrol (cont'd.)
16 September 1944
1420 (I) Sighted an unidentified submarine in the high periscope
          hull down bearing 050° T, probably friendly.
1425 (I) Sighted submarine, probably friendly on opposite course
          bearing 013° T, distance 14,000 yards.
1755 (I) A third unidentified survivor died of shock and exposure.
2006 (I) Conducted burial services for the deceased survivor and
          committed his body to the deep. Lat. 19-46 N., Long.
          120-32.5 E.

17 September 1944
0148 (I) Made passage through BALINTANG CHANNEL.
1145 (I) Departed Area 11 Delete enroute to SAIPAN I. at 17 knots.

18 September 1944
1203 (I) Sighted an unidentified plane, elevation 3°, range 12
          miles. Attempted to exchange recognition signals which
          were answered with a single flash from the plane as it
          passed up our starboard side. When it was broad on the
          bow, it headed directly for us - range about 5 miles.
          Submerged. Observed Jap markings on the fuselage through
          the periscope on the way down. Plane was a Jap "Betty".
1248 (I) Surfaced all clear.
1557 (I) Effected rendezvous with U.S.S. CASE (DD370).
1630 (I) Lieut-Comdr. G. H. SCHIFF, (MC), USNR. and CUMSTOCK, W.A.,
          PhM2c(T), V-6, USNR. reported aboard for temporary duty
          in connection with treatment of survivors.
1645 (I) Set course for SAIPAN, escorted by CASE.

19 September 1944
2230 (I) Douglass RULPH, Pvt., #5989149, 5th Bedfordshire and
          Hertfordshire, British Army died.
2330 (I) Douglass RULPH was buried at sea in latitude 19-06 N.,
          longitude 116-43 E.

20 September 1944
1110 (I) Arrived in TANAPAG HARBOR, SAIPAN I. Moored to U.S.S.
          FULTON. Transferred the fifty rescued men to the Army
          General Hospital. Commenced disinfecting ship and general
          field day. Transferred five Mark 18-1 and five Mark 14-3.
          torpedoes to U.S.S. FULTON.

— page 78 —
.S.S. SE.LION - Report of SECOND War Patrol (cont'd.)
5 September 1944

1831 (I) Sighted life raft with several men aboard. Commenced
     maneuvering to effect rescue.

1840 (I) The first survivor was hauled aboard and sent below for
     medical treatment.

1841 (I) - 2050 (I)

     Continued rescue of survivors from the RAKUYO MARU which
     had been torpedoed about 0530 (I) on 12 September 1944.
     The survivors were English and Australian prisoners of
     war from the MALAYAN PENINSULA. All were suffering from
     malnutrition, malaria, beri beri, pellagra, exposure,
     thirst, and all were coated with a thick layer of crude
     oil. A total of 54 men were recovered. Darkness
     and space limitations on board SEALLION prohibited further
     rescue. A detailed account of rescue operations, identity
     of the survivors, medical treatment berthing arrangements
     on board and incidental intelligence is contained in
     SEALLION'S secret serial 001-44 of 25 September 1944, and
     conf. serial 08-44 of 24 September 1944. The substance
     of several accounts of surviving witnesses of the events
     on the night 11-12 September 1944 are appended as
     remarks to Torpedo Attack No. SEVEN, Patrol No. TWO.

2045 (I) Came to course 090° T and headed for BALINTANG CHANNEL.
     It was heartbreaking to leave so many dying men behind.

2300 (I) Transmitted rescue report to ComSubPac.

2330 (I) One of the survivors died of shock and exposure. He
     was unidentified.

16 September 1944

0005 (I) Conducted burial service for the deceased survivor and
     committed his body to the deep. Lat. 18-51 N., Long.
     115-02 E.

0427 (I) Received ComSubPac despatch 151933 ordering SEALLION to
     SAIPAN at best possible speed.

0520 (I) Another of the survivors died of shock and exposure. His
     identity was unknown.

0547 (I) Conducted burial services for the deceased survivor and
     committed his body to the deep. Lat. 19-06 N., Long.
     116-43 E.

                                 - 18 -                     Enclosure (L)

— page 79 —
U.S.S. SEALION - Report of SECOND War Patrol (con'd.)

21 September 1944
1548 (I) Got underway for PEARL HARBOR, T.H., escorted by U.S.S.
HERALD (AM101).
2230 (K) Released escort. Entered safety lane north of SAIPAN.

22 September 1944
0740 (K) Sighted two unidentified planes.
0742 (K) Submerged.
0819 (K) Surfaced. All Clear.
1516 (K) Sighted PBM patrol plane - identified as friendly.

23 September 1944
2000 (K) Departed eastern end of safety lane.

24 - 26 September 1944
Enroute to PEARL HARBOR, T.H.

27 September 1944
2359 (M) Crossed the International Date Line. 27 September 1944
repeated on the calendar.

28 - 29 September 1944
Enroute to PEARL HARBOR, T.H.

30 September 1944
0600 (W) Rendezvouzed with U.S.S. PC - 485.
1000 (W) Arrived S/M Base, PEARL HARBOR, T.H.

- 20 - Enclosure (C)

— page 80 —
U.S.S. SEALION - Report of SECOND War Patrol (cont'd.)

(C) WEATHER:
    No unusual conditions prevailed during this patrol.

(D) TIDAL INFORMATION:
    Tidal currents encountered generally were similar to
    those discussed in the Sailing Directions and shown
    on the Pilot Charts.

(E) N_VIGATION.L AIDS:
    No navigational aids were noted.

- 21 - Enclos_e (L)

— page 81 —
U.S.S. SEALION - Report of SECOND War Patrol (Cont'd.)
(F) SHIP CONTACTS:

                                                              EST.
NO. : TIME    : DATE    : LAT     : LONG    : TYPE(S)   : RANGE    : INITIAL COURSE : HOW   : REMARKS
                                                        : SPEED          : CONT.

1.  : 0241(I) : 31Aug.  : 21-29 N : 121-09 E: 5or6AKs   : 21,000   : 180°T          : Sight : Attacks #1 & #2.
    :         :         :         :         : 2or1APs   : yds      : 9 kts.         : Radar : 1 AO Sunk by
    :         :         :         :         : 2 AOs     :          : zig-           :       : another S/M, 1
    :         :         :         :         : 2 DD's    :          : zagging        :       : AO sunk by
    :         :         :         :         : 2 other   :          :                :       : SEALION. 2 hits.
    :         :         :         :         : escorts   :          :                :       :
    :         :         :         :         : Total: 8  :          :                :       :
    :         :         :         :         : ships, 4  :          :                :       :
    :         :         :         :         : escorts   :          :                :       :

2.  : 0615(I) : 31 Aug. : 21-17 N : 121-24 E: 4or5AKs   : 10,000   : 145° T         : Peri- : Same Convoy as
    :         :         :         :         : 2or1APs   : yds      : 8 kts.         : Smoke : Contact #1.
    :         :         :         :         : 1 DD      :          : zig-           :       : Attacks #3&#4.
    :         :         :         :         : 3 or 4    :          : zagging        :       : 1 DD, 1 AP sunk.
    :         :         :         :         : Escorts   :          :                :       : 2 & 3 hits,
    :         :         :         :         : Total:    :          :                :       : respectively.
    :         :         :         :         : 6 ships,  :          :                :       :
    :         :         :         :         : 2escorts  :          :                :       :

3.  : 1707(I) : 31Aug.  : 20-45 N : 121-32 E: 1 Anti-   : 16,000   : 325° T         : Peris : Attack #5.
    :         :         :         :         : Sub.      : (smoke)  : 17 kts.        : Smoke : 3 torpedoes
    :         :         :         :         : Trawler   :          : steady         :       : missed.
    :         :         :         :         :           :          : course         :       :

4.  : 0125(I) : 12Sept. : 17-55 N : 114-42 E: Convoy    : 23,000   : 035° T         : Radar : Attacks #6 & #7.
    :         :         :         :         : 2 AO's    : yds      : 11 kts.        :       : 1 large AO sunk.
    :         :         :         :         : 3 AP's    :          : zigzag-        :       : 2 large APs sunk.
    :         :         :         :         : 4 AK's    :          : ging.          :       :
    :         :         :         :         : 2 DD's    :          :                :       :
    :         :         :         :         : 4 Cor-    :          :                :       :
    :         :         :         :         : vettes    :          :                :       :

5.  : 0935(I) : 12Sept. : 18-10 N : 114-48 E: 1 cor-    : 26,000   : 030° T         : High  : Patrolling after
    :         :         :         :         : vette     : yds      :                : Peris : Attack #7.

6.  : 0946(I) : 12Sept. : 18-29 N : 114-32 E: 1 DD      : 26,000   : 030° T         : High  : Patrolling after
    :         :         :         :         :           : yds      : zig-           : Peris : Attack #7.
    :         :         :         :         :           :          : zagging        :       :

7.  : 1329(I) : 12Sept. : 19-02 N : 114-48 E: 1 DD      : 26,000   : 270° T         : High  : Patrolling after
    :         :         :         :         :           : yds      :                : Peris : Attack #7.

                                  - 22 -                                  Enclosure (A)

— page 82 —
U.S.S. SEALION. - Report of SECOND War Patrol (cont'd.)
(G) AIRCRAFT CONTACTS:

Contact Number | 1 | 2 | 3 | 4
|---|---|---|---
Date | : 8-25-44 | : 8-26-44 | : 8-31-44 | : 8-13-44
Time (Zone) | : 1229(K) | : 1110(K) | : 1129(I) | : 2236(I)
Position: Lat. | : 22-10 N. | : 22-04 N. | : 21-00 N. | : 21-15 N.
         Long. | : 145-06 E. | : 140-42 E. | : 121-30 E. | : 122-00 E.
SPEED | : 9 | : 14 | : 3 | : 17
Course | : 270 | : 270 | : 180 | : 270
Trim | : Surf. | : Surf. | : Per. | : Surf.
Minutes Since Last | : Not | : Cont. | : Not | : Not
SD Radar Search | : Searching | : Searching | : Searching | : Searching

Number | : 1 | : 1 | : 1 | : 1
Type | : PBM | : PBY | : PBY | : PBY
Probable Mission | : Patrol | : Patrol | : Search | : Search
How Contacted | : Sight | : Sight | : Per. | : SJ Radar
Initial Range | : 10 mi. | : 5 mi. | : 4 mi. | : 6 mi.
Elevation | : 40' | : 12' | : 10' | : Less than
         |   |   |   |   15'

Range & Relative | : | : | : | : 12,000
Bearing of Plane | : | : | : | : 090° T
When It Detected | : | : | : | :
Submarine | : UNA | : UNK | : N.D. | :

Sea: (State (Beau- | : | : | : | :
     fort) | : 2 | : 4 | : 2 | : 1
     (Direction(Rel) | : 320 | : 320 | : 170 | : 260
Visibility (Miles) | : 25 | : 25 | : 25 | : 20
Clouds: (Height in | : | : | : | :
         Ft. | : 3000 | : 2000 | : 2000 | : 1500
         (Percent | : | : | : | :
         Overcast | : 10% | : 30% | : 35% | : 5%
Moon: (Bearing(Rel) | : | : | : | : 100° T
      (Angle | : | : | : | : 60°
      (Percent | : | : | : | : 75%
      Illum. | : | : | : | :

Type of S/M Camouflage on the patrol Light Gray.

- 23 - Enclosure (A)

— page 83 —
U.S.S. SEAWOLF - Report of SECOND War Patrol (cont'd.)
(G) AIRCRAFT CONTACTS (Cont'd.)

CONTACT NUMBER | | 5 | | 6 | | 7 | | 8
|---|---|---|---|---|---|---|---
SUBMARINE
Date | | 9-2-44 | | 9-2-44 | | 9-3-44 | | 9-18-44
Time (Zone) | | 1322(I) | | 1615(I) | | 0646(I) | | 1203(I)
Position: Lat. | | 19-13 N. | | 19-01 N. | | 17-59 N. | | 16-33 N.
| Long. | | 128-00 E. | | 128-42 E. | | 132-29 E. | | 139-03 E.
Speed | | 17 | | 17 | | 17 | | 17
Course | | 105 | | 105 | | 105 | | 102
Trim | | Surf. | | Surf. | | Surf. | | Surf.
Minutes Since Last | | Not | | Cont. | | Cont. | | Not
SD Radar Search | | Searching | | Searching | | Searching | | Searching

AIRCRAFT
Number | | | | 1 | | 1 | | 1 | | 1
Type | | | | Patty | | Betty | | UNK | | Betty
Probable Mission | | | | Patrol | | Patrol | | Patrol | | Patrol
How Contacted | | | | Sight | | Sight | | Sight | | Sight
Initial Range | | | | 7 mi. | | 7 mi. | | 5 mi. | | 12 mi.
Elevation Angle | | | | 4° | | 2° | | 4° | | 3°
Range & Relative | | | | | | 165° R | | 045° R | | 090°
Bearing of Plane | | | | | | | | |
When First Detected | | | | | | 6 mi. | | | | 10 mi.
Submarine | | | | UNK | | | | UNK | | | | UNK

CONDITIONS
Sea: (State (Beau- | | | | 2 | | 2 | | 2 | | 1
| fort) | (Direction(Rel) | | | | 280 | | 280 | | 280 | | 280
Visibility (Miles) | | | | 30 | | 30 | | 30 | | 30
Clouds: (height in | | | | 2000 | | 2000 | | 2500 | | 2000
| Feet | (Percent | | | | 15% | | 15% | | 25% | | 30%
| Overcast | | | | | | | | |
Moon: (Angle | (Percent | Illum. | | | | | | | | |

Type of S/M Camouflage on this patrol Light Gray.

- 24 - Enclosure (A)

— page 84 —
U.S.S. SEALION - Report of SECOND War Patrol (cont'd.)

(H) ATTACK DATA TORPEDO ATTACK REPORT FORM

U.S.S. SEALION Torpedo Attack No. ONE Patrol No. TWO.
Time: 0431 (I) Date: 31 August 1944. Lat. 21-28 N. Long. 121-14 E.

TARGET DATA - DAMAGE INFLICTED

Description: Target group consisted of approximately 3 AK's, 2 AP's
and an AO with 3 or 4 escorts, including at least
two DD's. The convoy was not yet reformed after an
earlier attack by another submarine. At the time of
this attack the convoy was divided into several
groups. The leading and nearer group which we
attacked consisted of a DD, 600 yards in the van of an
AK and a large AO. The bow of the AK nearly over-
lapped the stern of the AO. Our target was the AO,
the trailing ship in the target group and the nearest
to SEALION.

Ships Sunk: None.
Ships Damaged: None.
Probably Sunk: None.
Damage Determined by:

Target Draft: 12 ft. Course: 100° T. Speed: 9.5 kts. Range: 2600 yds.

OWN SHIP DATA

Speed: 16 kts. Course: 015° T. Depth: Surface. Angle:

Type Attack: Night radar, T.B.T. firing bearings.

| Tubes Fired:    | 6      | 5      | 4      | 3       | 2       | 1       | Track Angle:    | 90 S   | 89 S   | 88 S   | 100 S   | 100 S   | 97 S    |
| Gyro Angle:     | 4½ L   | 6½ L   | 9 L    | 4 R     | 4½ R    | 1½ R    |
| Depth Set:      | 6 ft.  | 6 ft.  | 6 ft.  | 6 ft.   | 6 ft.   | 6 ft.   |
| Erratic:        | U N D E T E R M I N E D                                 |
| Hit or Miss:    | Miss   | Miss   | Miss   | Miss    | Miss    | Miss    |
| Mark Torpedo:   | 18-1   | 18-1   | 18-1   | 18-1    | 18-1    | 18-1    |
| Serial No:      | 55313  | 54961  | 53357  | 55068   | 55103   | 54570   |
| Mark Exploder:  | 4-2    | 4-2    | 4-2    | 4-2     | 4-2     | 4-2     |
| Serial No:      | 8722   | 9274   | 9334   | 9410    | 9254    | 8776    |
| Actuation Set:  | Contact| Contact| Contact| Contact | Contact | Contact |
| Actuation Actual:| -      | -      | -      | -       | -       | -       |
| Mark Warhead:   | 18-1   | 18-1   | 18-1   | 18-1    | 18-1    | 18-1    |
| Serial No:      | 2341   | 2298   | 2330   | 2291    | 2239    | 1478    |
| Explosive:      | TPX    | TPX    | TPX    | TPX     | TPX     | TPX     |

Firing Interval: 9 11 30 9 11
Type Spread: 2° Divergent.
Sea Condition: Calm.
Overhaul Activity: U.S.S. FULTON.

- 25 - Enclosure (A)

— page 85 —
U.S.S. SEALION - Report of SECOND War Patrol (cont'd.)

(H) ATTACK DATA. TORPEDO ATTACK REPORT FORM

U.S.S. SEALION Torpedo Attack No. ONE Patrol No. TWO.
Time: 0431 (I) Date: 31 August 1944. Lat. 21-28 N. Long. 121-14 E.

Remarks: It is difficult to understand why all six torpedoes
missed. There was a probable speed error of 1 to 1½
knots, high, used in the T.D.C. - also there is some
question as to whether the target zigged just prior
to or after firing. However in view of the large
target group presented (ie. two overlapping ships and
a destroyer just ahead of these ships about 500 yards)
it is difficult to see how six torpedoes could run
through them clean. The only definite fact that could
explain erratic performance of the torpedoes is the
SEALION's speed through the water at the firing point,
about 15 knots. Although the Commanding Officer ordered
2/3 speed prior to firing (ie. twelve knots) the ship
had not slowed below 15 knots when the torpedoes were
fired.

- 26 - Enclosure (A)

— page 86 —
U.S.S. SEALION - Report of SECOND War Patrol (cont'd)

(H) ATTACK DATA TORPEDO ATTACK REPORT FORM

U.S.S. SEALION Torpedo Attack No. TWO. Patrol No. TWO.
Time: 0434 (I) Date: 31 August 1944. Lat. 21-25 N. Long. 121-19 E.

TARGET DATA - DAMAGE INFLICTED

Description: The target was the AO fired at in Attack No. ONE. The
target group maintained course, speed, and position
during Attack No. TWO.

Ships Sunk: Large AO similar to NIPPON MARU, pg. 278, ONI J (EU).
Ships Damaged: 1
Probably Sunk: None.
Damage Determined by: Heard and saw explosion of two hits. Radar
reported ship breaking in two parts. Target obscured
by smoke. When convoy was attacked at daylight sub-
merged, no tankers were observed.

Target Draft: 12 ft. Course: 110° T. Speed: 9.5 kts. Range: 1800 yds.

OWN SHIP DATA

Speed: 13 kts. Course: 240° T. Depth: Surface. Angle:

Type Attack: Night radar. T.B.T. firing bearing. Stern tubes.

| | 10 | 9 | 8 | 7 |
| :| :----- | :----- | :----- | :----- |
| Tubes Fired: | 10 | 9 | 8 | 7 |
| Track Angle: | 120 S | 120 S | 120 S | 120 S |
| Gyro Angle: | 5 L | 4½ L | 3 L | 2 L |
| Depth Set: | 6 ft. | 6 ft | 6 ft | 6 ft |
| Erratic: | No | No | No | No |
| Hit or Miss | Miss | Miss | HIT | HIT |
| Mark Torpedo: | 18-1 | 18-1 | 18-1 | 18-1 |
| Serial No: | 54921 | 54610 | 54121 | 5453 |
| Mark Exploder: | 4-2 | 4-2 | 4-2 | 4-2 |
| Serial No: | 8124 | 9070 | 9249 | 9569 |
| Actuation Set: | Contact | Contact | Contact | Contact |
| Actuation Actual: | -- | -- | Contact | Contact |
| Mark Warhead: | 18-1 | 18-1 | 18-1 | 18-1 |
| Serial No: | 3235 | 1677 | 2329 | 1610 |
| Explosive: | TPX | TPX | TPX | TPX |
| Firing Interval: | 9 | 9 | | |
| Type Spread: | 3° Divergent. | | | |
| Sea Condition: | Calm. | | | |
| Overall Activity: | U.S.S. FULTON. | | | |
| Remarks: | Two timed hits were saw and heard on the | | | |
| | target causing a large cloud of black smoke | | | |
| | to rise amidships. The pip got smaller on | | | |
| | radar until, three minutes after being hit | | | |
| | it was one-half its former size. The pip then | | | |
| | divided into two parts about 50 yds. apart | | | |
| | and faded out at 7100 yds. about 4½ minutes | | | |
| | from the time of the first hit. | | | |
| | - 27 - Enclosure (A) | | | |

— page 87 —
U.S.S. SEALION - Report of SECOND War Patrol (cont'd.)
(H) ATTACK DATA TORPEDO ATTACK REPORT FORM

U.S.S. SEALION Torpedo Attack No. THREE Patrol No. TWO
Time: 0720 (I) Date: 31 August 1944. Lat. 21-05 N. Long. 121-26 E.

TORPEDO DATA - DAMAGE INFLICTED

Description: The convoy attacked in the early morning, (Attack Nos.
             ONE and TWO), had now reformed and was heading S.E.
             The convoy now consisted of six AK's formed
             in three columns of two ships each with a UN-1 DD in
             the van patrolling ahead. No other escorts were sighted.
Ships Sunk: One DD, UN-1 Class ONI 41-42 (EC).
Ships Damaged or
Probably Sunk: None.
Damage Determined by:

Target Draft: ? Course: 152° T. Speed: 10 knots. Range: 2900 yds.

OWN SHIP DATA

Speed: 3 knots. Course: 080° T. Depth: 63 feet. Angle: 0°
Type Attack: Daylight submerged periscope attack. Bow tubes.

| | 1 | 2 | 3 |
|---|---|---|---|
| Tubes Fired: | 1 | 2 | 3 |
| Track Angle: | 90 S | 90 S | 90 S |
| Gyro Angle: | 4 R | 7½ R | 7 R |
| Depth Set: | 6 ft. | 6 ft. | 6 ft. |
| Erratic: | No | No | No |
| Hit or Miss: | Miss | HIT | HIT |
| Mark Torpedo: | 18-1 | 18-1 | 18-1 |
| Serial No: | 54851 | 55088 | 54613 |
| Mark Exploder: | 4-2 | 4-2 | 4-2 |
| Serial No: | 9517 | 9266 | 9652 |
| Actuation Set: | Contact | Contact | Contact |
| Actuation Actual: | --- | Hit | Hit |
| Mark Warhead: | 18-1 | 18-1 | 18-1 |
| Serial No: | 1730 | 2228 | 2247 |
| Explosive: | TPX | TPX | TPX |
Firing Interval: 10 10
Type Spread: 2° Divergent.
Sea Condition: Calm.
Overhaul Activity: U.S. FULTON.
Remarks: Two hits were heard at the proper time.
         A cloud of smoke immediately enveloped
         the target. Shortly afterward water
         noises indicated the target sinking.
         Six minutes after firing depth bombs
         dropped by air escorts forced us deep.

- 28 - Enclosure (A)

— page 88 —
U.S.S. SEALION - Report of SECOND War Patrol (cont'd.)

(H) ATTACK DATA TORPEDO ATTACK REPORT FORM

U.S.S. SEALION Torpedo Attack No. FOUR Patrol No. TWO
Time: 0721 (I) Date: 31 August 1944. Lat. 21-08 N. Long. 121-26 E.

TORPEDO DATA - DAMAGE INFLICTED

Description: This medium AP was the leading ship in the middle
           column of the convoy described in Attack No. THREE.
Ships Sunk: One medium AP similar to RAKUYO MARU, pg. 53, ONI
           208 J (EU).
Ships Damaged: or
Probably Sunk: None.
Damage Determined by: Heard and felt three timed hits. Smoke from
           sinking DD enveloped target group at time of hits.
           Soundman reported characteristic ship breaking up
           noises after these hits.

Target Draft: 10 ft. Course: 162° T. Speed: 8 knots. Range: 3500 yds.

OWN SHIP DATA

Speed: 3 kts. Course: 060° T. Depth: 60 feet. Angle: 0°

Type Attack: Submerged periscope attack. Bow tubes.

| | 4 | 5 | 6 |
|---|---|---|---|
| Tubes Fired: | 4 | 5 | 6 |
| Track Angle: | 8 R | 11 R | 10½ R |
| Gyro Angle: | 6 ft. | 6 ft. | 6 ft. |
| Depth Set: | No | No | No |
| Erratic: | HIT | HIT | HIT |
| Hit or Miss: | 18-1 | 18-1 | 18-1 |
| Mark Torpedo: | 55359 | 54861 | 55347 |
| Serial No: | 4-2 | 4-2 | 4-2 |
| Mark Exploder: | 9258 | 9106 | 9093 |
| Serial No: | Contact | Contact | Contact |
| Actuation Set: | Contact | Contact | Contact |
| Actuation Actual: | 18-1 | 18-1 | 18-1 |
| Mark Warhead: | 1895 | 1659 | 2317 |
| Serial No: | TPX | TPX | TPX |
| Explosive: | | | |
| Firing Interval: | 10 | 10 | 10 |
| Type Spread: | 2° Divergent. | | |
| Sea Condition: | Calm. | | |
| Overhaul Activity: | U.S.S. FULTON. | | |
| Remarks: | This attack immediately followed Attack | | |
| | No. FOUR. After the torpedoes hit, the | | |
| | target moved into the smoke cloud over | | |
| | the stricken DD. Escorts forced | | |
| | SEALION deep a minute or two later. | | |
| | Sounds of a ship breaking up were | | |
| | heard by sound. | | |

- 29 - Enclosure (A)

— page 89 —
U.S.S. SEALLION - Report of SECOND War Patrol (cont'd.)

(H) ATTACK DATA TORPEDO ATTACK REPORT FORM

U.S.S. SEALLION Torpedo Attack No. FIVE Patrol No. TWO
Time: 1815 (I). Date: 31 August 1944. Lat. 19-55 N. Long. 120-16.5 E.

TARGET DATA - DAMAGE INFLICTED

Description: Target first sighted bearing 137° T with very near-
ly a zero angle on the bow. Target had high fore-
castle, high stack poop, and bridge structure. A
gun was mounted forward and a range finder placed
atop the bridge deck house. Estimated tonnage 500 -
800 tons. At long ranges looked like a medium
sized AK, at close range like a A/S trawler.
Ships Sunk: None.
Ships Damaged or
Probably Sunk: None.
Damage Determined by:

Target Draft: 6 ft. Course: 330° T. Speed: 12 kts. Range: 1500 yds.

OWN SHIP DATA

Speed: 3 knts. Course: 050° T. Depth: 64 feet. Angle: 0°

Type Attack: Day periscope submerged attack. Bow tubes.

| | 1 | 2 | 3 |
|:|:------|:------|:------|
| Tubes Fired: | 135 P | 135 P | 135 P |
| Track Angle: | 34 L | 32 L | 33 L |
| Gyro Angle: | 3 ft. | 3 ft. | 3 ft. |
| Depth Set: | No | No | No |
| Erratic: | Miss | Miss | Miss |
| Hit or Miss: | 18-1 | 18-1 | 18-1 |
| Mark Torpedo: | 34958 | 55352 | 54931 |
| Serial No: | 4-2 | 4-2 | 4-2 |
| Mark Exploder: | 8515 | 9419 | 9104 |
| Serial No: | Contact | Contact | Contact |
| Actuation Set: | - - | - - | - - |
| Actuation Actual: | 18 | 18 | 18 |
| Mark Warhead: | 1544 | 1917 | 1616 |
| Serial No: | TPX | TPX | TPX |
| Explosive: | | | |
| Firing Interval: | 10 | | 10 |
| Type Spread: | 2° Divergent. | | |
| Sea Condition: | Calm. | | |
| Overhaul Activity: | U.S.S. FULTON. | | |
| Remarks: | None. | | |

- 30 - Enclosure (..)

— page 90 —
U.S.S. SEAWOLF - Report of SECOND War Patrol (c nt'd.)

(H) ATTACK DATA
TARGET ATTACK REPORT FORM

U.S.S. SEALION Torpedo Attack No. SIX Patrol No. TWO
Time: 0250 (I) Date: 12 September 1944 Lat. 18-08 N. Long. 114-43 E.

TARGET DATA - DAMAGE INFLICTED

Description: When first contacted the target group was steering
course 040° T, making good about 10.5 knots. The convoy
consisted of 2 AU's, 4 AP's, and 3 AK's in a line of
columns, three ships in each column. Two DD's and about
4 PC's, corvettes, or SC's were disposed three on each
flank. After GROWLER's attack at 0201 (I) in which, by
survivors account, a two-funneled destroyer was sent
to the bottom. The convoy was somewhat dispersed by
their avoiding actions and by the subsequent course
changes. At the moment of SEALION's attack the convoy
had just steadied on course 030° T, placing SEALION
6000 yards on the convoy's port bow and almost dead
ahead of one of the flanking escorts. The port flank
of the convoy then consisted of four ships in an
irregular column. SEALION's target was a large AU in
the van of this column. A quarter moon was just rising.
Ships Sunk: None.
Ships Damaged: None.
Probaby Sunk: None.
Damage Determined by:

Target Draft: 35 feet. Course: 030° T. Speed: 11 kts. Range: 3000yds

OWN SHIP DATA

Speed: 13 knots. Course: 160° T. Depth: Surface Angle:

| | | |
|:|:|:|
| Type Attack:        | Night radar. | |
| Tubes Fired:        | 6         | 5         |
| Track Angle:        | 35 P      | 35 P      |
| Gyro Angle:         | 17 R      | 91 L (See remarks) |
| Depth Set:          | 6 ft.     | 6 ft.     |
| Hit:                | No        | No        |
| Miss:               | Miss      | Miss      |
| Mark Torpedo:       | 14-3 A    | 14-3 A    |
| Serial No.:         | 40645     | 40717     |
| Mark Warhead:       | 6-4       | 6-4       |
| Serial No.:         | 8543      | 5078      |
| Actuation Set:      | Contact   | Contact   |
| Actuation Actual:   | -         | -         |
| Mark Exploder:      | 16 -      | 16-1      |
| Serial No.:         | 11566     | 351       |
| Explosive:          | TPX       | TPX       |
| Firing Interval:    | 12        |           |
| Type Spread:        | 0° Divergent. |           |
| Sea Condition:      | Calm.     |           |
| Overhaul Activity:  | U.S.S. FULTON |           |
|                     | - 31 -    | Enclosure (..) |

— page 91 —
U.S.S. SEALION - Report of SECOND War Patrol (cont'd.)

(H) ATTACK DATA TORPEDO ATTACK REPORT FORM
U.S.S. SEALION Torpedo Attack No. SIX Patrol No. TWO.
Time: 0250 (I) Date: 12 September 1944. Lat. 18-08 N. Long. 114-43 E.

OWN SHIP DATA

Remarks: Just before firing the second torpedo the gyro matching
light went out in the conning tower and a report was
received that gyros were not matching forward. The
second torpedo was fired with a ninety-one degree left
gyro angle, before fire could be checked. Because
SEALION was in a precarious position, but as yet
undetected, an attempt was made to break off the attack,
remedy the trouble, and attack again. The
alternative was to hold fire until gyros were cranked
through ninety degrees and matched by hand. A minute
or two later SEALION was sighted and brought under
gunfire by the escorts. Investigation revealed that the
contacts in the forward gyro angle regulator froze,
throwing the gyros left against the stop.

- 32 - Enclosure (..)

— page 92 —
U.S.S. SEALION - Report of SECOND War Patrol (cont'd.)
(H) ATTACK DATA TORPEDO ATTACK REPORT FORM

U.S.S. SEALION Torpedo Attack No. SEVEN Patrol No. TWO.
Time: 0522 (I) Date: 12 September 1944. Lat. 18-42 N. Long.114-30 E.

TARGET DATA - DAMAGE INFLICTED

Description: The target group was the nine ship convoy described
in Torpedo Attack No. SIX. This attack was made
about three hours later. The convoy was then headed
on a northwesterly course in a somewhat irregular
formation flanked on either hand by several escorts.
At the instant of this attack an irregular column of
four ships was on the starboard, or near, flank of
the convoy. This column consisted of a large AP in
the van; on its starboard quarter was an AU; well
out on the port quarter of the AU was another AK or
AP; and lastly, about 1500 yards astern of the AU
astern of the AU was a large AP. SEALION'S targets
were the AU (second ship in column) and the AP (last
ship in column); three torpedoes were fired at each.
Ships Sunk: One AU - RAKUYO MARU, pg. 53, UNI 208 (EC)
One large AP - larger than RAKUYO - (LU)
One large AP - larger than RAKUYO - (LU)
Ships Probably Sunk
or Damaged: None.
Targets Draft: 25 ft. Course: AU - 325° T Speed: 10.4 kts. Range
AP - 302° T 2800 yds (AU); 1500 yds
(AP)

OWN SHIP DATA

Speed: 4 kts. Course: AU - 230° T Depth: 63 feet. Angle: 0°
AP - 210° T

Type Attack: Night radar and periscope.

| | AU as target | | | AP as target | |
|---|---|---|---|---|---|
| | 1 | 2 | 3 | 4 | 5 | 6 |
| Tubes Fired: | 80 S | 80 S | 80 S | 60 S | 60 S | 60 S |
| Track Angle: | 4 L | 5 L | 6 L | 17 L | 17 L | 17 L |
| Gyro Angle: | 6 ft | 6 ft | 6 ft | 6 ft | 6 ft | 6 ft |
| Depth Set: | HIT* | HIT | HIT | Miss | HIT | HIT |
| Hit or Miss: | 14-3 A | 14-3 A | 14-3 A | 14-3 A | 14-3 A | 14-3 A |
| Mark Torpedo: | 25954 | 39373 | 26273 | 39180 | 25666 | 26646 |
| Serial No. | 6-4 | 6-4 | 6-4 | 6-4 | 6-4 | 6-4 |
| Mark Exploder: | 9609 | 621 | 1290 | 1800 | 944 | 7358 |
| Serial No. | Contact | Contact | Contact | Contact | Contact | Contact |
| Actuation Set: | Contact | Contact | Contact | - | Contact | Contact |
| Actuation Actual: | 16-1 | 16 | 16 | 16 | 16-1 | 16 |
| Mark Warhead: | 13770 | 11236 | 9939 | 1255 | 3130 | 10091 |
| Serial No. | TPX | TPX | TPX | TPX | TPX | TPX |
| Explosive: | 9 | 11 | 90 | 10 | 10 |
| Firing Interval: | | | | | | |

- 33 -
Enclosure (A)

— page 93 —
.S.S. SEALLION - Report of SECOND War Patrol (cont'd.)
(F) ATTACK DATA TORPEDO ATTACK REPORT FORM

.S.S. SEALLION Torpedo Attack No. SEVEN Patrol No. TWO
Time: 0522(I) Date: 12 September 1944. Lat. 18-42 N. Lon. 114-30 E.

                               OWN SHIP DATA
Type Spread:                   40 as target                   40 as target
Sea Condition:                 20 Divergent                   30 Divergent
                               Calm.                          Calm
Overhaul Activity: U.S.S. HOLLAND

* Hit an AP in van of target.

Remarks:        After about the required running time to reach the
                tanker, three torpedo explosions were heard and the
                tanker burst into flames at once, illuminating the
                second target distinctly. After firing tubes, #4, #5,
                and #6, two timed explosions occurred. Shortly there-
                after high speed screws were heard coming in on the
                starboard beam and SEALLION went deep. After two and
                one-half hours, SEALLION got back to periscope depth.
                At this time the smoke of the burning tanker and the
                tops of its masts were visible. The smoke disappeared
                an hour later.

Synopsis of accounts of the events on the night 11-12
September 1944 as given by four survivors from the
HAKUYO MARU.

The survivors questioned were:

1. Terrence Patrick JOHNSON, QX58915, Eight Divisional
   Signals, Eighth Australian Division, A.I.F.

2. Michael DEGAURA, QX18570, Driver, Second Third Motor
   Transport Co., A.I.F. serving with the Third
   Indian Corps on 7 December 1941.

3. William Henry FULLER, 1427178, Thirty-First Coast
   Battery, Seventh Coast Regiment (Fixed Defense), R.A.

4. R. E. LAWS, Pvt., NX18368, Second Eighteenth Batt-
   alion, A.I.F.

SYNOPSIS:

"We were sleeping topside on the HAKUYO MARU. At
about 0200 (I) a two funneled destroyer with horizontal
bands around the after funnel was evidently struck by
a torpedo and blew up. (GROWLER Attack) There was a
lot of gunfire and flares (GROWLER first and then SEALLION
later) but after awhile everything was quiet once more.

- 34 -                                          Enclosure (L)

— page 94 —
U.S.S. SEALLION - Report of SECOND War Patrol (cont'd.)
(H) ATTACK DATA TORPEDO ATTACK REPORT FORM

U.S.S. SEALLION Torpedo Attack No. SEVEN Patrol No. TWO
Time: 0522(I) Date: 12 September 1944 Lat. 18-42 N. Long.114-30 E.

SYNOPSIS:

About 0500 (I) or 0600 (I) a red flare went up and along
the port side of the tanker which was right ahead of us.
Then two torpedoes struck the tanker and it burst into
flames (SEALLION attack) throwing blazing oil high
in the air. Then we saw the ship which
had been on the port bow of the tanker swerve in close
to the tanker - almost collided, we'd say. It looked to
us as if the other ship had been disabled for they just
seemed to drift into each other. Then the second ship
caught fire aft and in a moment there was a puff of smoke
up around his bridge and she was ablaze forward. Then
there was a thud up forward on our ship followed by
another aft and the RAKUYO began to settle in the water.
The Japs took to the boats and, about five minutes later
we went into the water, too, and climbed aboard some rafts.
The tanker was burning fiercely. We feared an oil fire on
the water so we tried to keep as far away from her as
possible. Just after dawn the ship which collided with
the tanker went down stern first. Half an hour or so
later the tanker sunk. The oil burned on the water for
a little while and then went out. The RAKUYO now had a
list to starboard but it looked as if she wouldn't go
down for awhile. Some of us started back, but before we
got to her she began to keel over and settle some more.
So we changed our minds about going back for provisions
and water. At about 1800 (I) the RAKUYO sank."

"Shortly after we were in the water a destroyer
picked up the Japs in the long boats. We were held off
with revolvers. In the afternoon, another destroyer came
up, escorting a passenger-freighter. These ships rescued
the remaining Japs. Then all three ships steamed off."

"After the RAKUYO was hit we didn't notice what
happened to any other ships in the convoy except the
tanker and the ship which collided with her. The rest
just disappeared. That ship was bigger than the RAKUYO,
she had a clipper bow and several decks. When she joined
the convoy off LUZON, a sailor said she looked foreign -
like a Scandanavian - and was supposed to be loaded with
raw rubber".

Additional intelligence concerning the identity and
points of departure of various ships in the convoy is
contained in SEALLION's secret serial 001-44 of 25
September 1944.
- 35 - Enclosure (L)

— page 95 —
U.S.S. SEALION - Report of SECOND War Patrol (cont'd.)

(H) ATTACK DATA TORPEDO ATTACK REPORT FORM

U.S.S. SEALION Torpedo Attack No. SEVEN Patrol No. TWO
Time: 0522 (I) Date: 12 September 1944. Lat. 18-42 N. Long. 114-30 E.

From these accounts and from the observations of
SEALION, the attack on the convoy at 0522 (I), 12 Sept-
ember 1944 is reconstructed as follows:

0523 (I) Leading AP struck by torpedo aimed at tanker and
 disabled. Tanker struck by two torpedoes and set afire.

0524 (I) Leading AP caught fire from the tanker.

0524 (I) RAKUYO MARU struck by two torpedoes one forward and one
 aft.

0730 (I) The leading AP went down.

0816 (I) Tanker went down.

1800 (I) RAKUYO went down.

- 36 - Enclosure (A)

— page 96 —
U.S.S. SEALLION - Report of SECOND War Patrol (cont'd.)

(I) MINES:
No mines were encountered during the patrol.

(J) ANTI-SUBMARINE MEASURES AND TACTICS:
a. During a night attack on a convoy in the BASHI CHANNEL
a midget submarine passed close aboard on the starboard
bow. It was about 10,000 yards on the bow of the
convoy. The midgets quite plausibly could steam or be
towed out from TAKAO to pick up a convoy and then
accompany it across BASHI CHANNEL. This employment of
midgets is believed to be an innovation in anti-sub-
marine warfare.

b. Low flying planes patrolled the convoy routes during
moonlight nights.

c. The escorts had no new tricks up their sleeves. After a
submarine attack, they would drop several charges where
they believed the submarine to be. The area was search-
ed by alternately listening and echo-ranging.

d. Neither planes nor escorts were radar equipped.

(K) MAJOR DEFECTS AND DAMAGE:

HULL: - (1) During much of the patrol the hydraulic
accumulator groaned and squealed when charging.
Improper lubrication of the packing was believed to be
the cause, but it was not until SEALLION had left the
area that the noise was eliminated. The accumulator
will be repacked during refit.

(2) The gasket on the inspection cover over the hull
ventilation induction valve was pushed in and several
studs loosened during a depth charge attack. On arrival
in SAIPAN the cover was removed and found to be torn
opposite several stud holes. The gasket was renewed and
the leak eliminated. * the gasket

(3) The port bow plane packing leaks badly at depths
greater than 250 feet. The packing was renewed during
last refit. The leak is believed caused by an unstan-
dardized bronze bushing.

MACHINERY: - (1) Sheared cylinder head studs as follows:
(a) one stud, inboard, #7 unit, #3 engine; (b) two studs,
inboard, #3 unit, two studs, inboard, #7 unit, (one
stud, inboard, #8 unit, and one stud, inboard, #12 unit)
all in #2 engine.

- 37 - Enclosure (A)

— page 97 —
U.S.S. SAILLION - Report of SECOND War Patrol (cont'd.)

(K) MAJOR DEFECTS AND DAMAGE:

(2) During the patrol, six upper connecting rod bearings
in #2 and #4 engines had to be renewed. Hours on these
bearings varied from 250 hours to 500 hours. SAILLION is
originating separate correspondence on the subject of
bearing failures of the Winton 278-A Engine.

(3) While at SAIPAN, the port screw was damaged when
another submarine moored alongside. Heavy vibration
develops above 240 shaft R.P.M.

TORPEDO TUBES AND TORPEDOES: - (1) Twenty-four (24) Mk 18-1
torpedoes were received from the U.S.S. FULTON. Of these
twenty-four, nineteen (19) were fired with seven hits.

(2) The following deficiencies were detected after
receiving the torpedoes on board:

a. Torpedo number 54735 had practically dry battery
when the height of the electrolyte was checked
prior to the first charge. Each cell required 125
c.c. of water to bring the level of electrolyte
to 7/8" above the cell tops. Over a period of
seven days a total of 131 amperes and 20.5 hours were put
into the battery at the seven amp., five amp.,
and three amp. rates. These chargings brought
the average gravity up to 1.235. During subsequent
chargings it was impossible to get the gravity
higher than this.

b. One week after the first charge on board, torpedo
number 54819 was found to be very low in elect-
rolyte. The tops of the plates were just barely
wet. All cells were watered and a freshening
charge at seven amperes for six hours plus an
overcharge at three amperes for four hours were
put in. This overcharge brought the gravity up
to normal.

c. Torpedo number 54508 was found to have a pin
inserted in the tail, locking the vertical
rudders for a circular run. This was discovered
when exercising the rudder by hand on loading the
torpedo into the tube.

d. Torpedo number 54861 was received aboard with
number seven handhole plate removed instead of
number six. This error caused the battery comp-
artment to be completely sealed although a
cursory inspection would have indicated it to be
ventilating properly.

- 38 - Enclosure (A)

— page 98 —
U.S.S. SEALION - Report of SECOND War Patrol (cont'd.)
(K) MAJOR DEFECTS AND DAMAGE:

e. The record book for torpedo number 54934 showed an
initial charge by the tender on 3 August 1944 and
no subsequent charges. The average gravity drop
was 35 points by 20 August when it was first
charged aboard. A freshening charge at seven amps.
for six hours brought the torpedo back to normal.

f. Torpedo number 54610 showed a 20 point drop in
gravity when the first reading was taken 3 days
after receiving the torpedo on board. The last
charge entered in the record book was on 30 July
1944, 15 days prior to issue to the SEALION. This
charge had been put in aboard the GUARDFISH. There
were no means of determining whether or not the
tender put in a charge before issuing the torpedo
to us.

g. The hydrogen burning circuit on torpedo number
55347 was found to be shorted out when the torpedo
was received and had to be partially rewired on
board.

h. The warhead and after body joint screws on the
majority of all torpedoes had to be filed down on
board so as to make a smooth fit in the tube.

i. The standard ventilating connection as installed
in the 200 lb. air system in the torpedo rooms
fitted only six torpedoes of the twenty-four on
board. The remaining torpedoes had ventilating
connections of many different sizes. This made it
necessary to fix a jury rig with a washer as a
flange on the air line and then force the line,
with the ventilating fitting removed, into the
fitting on the tail of the torpedo. In some cases
it was necessary to use the exhaust line in the
torpedo as the supply line in order to get an
adequate flow of air.

(3) In accordance with the design promulgated in a recent
Mark 18 News Letter, a lug was welded to the mine rollers
in both torpedo rooms. This lug was designed to take a
tubular web strap to hold the torpedo half out of the
tubes, attaching the straps to the lugs and to the torpedo
guide stud. This greatly expedited lining up
loaded torpedoes for charging. Unfortunately, the first
time we dove with a torpedo on charge, the weld gave way.

- 39 - Enclosure (A)

— page 99 —
U.S.S. SEALI - Report of SECOND War Patrol (cont'd.)
(K) MAJOR DEFECTS AND DAMAGE:

(3) Serious casualty was avoided only because rope preventers
had been attached to the torpedo. As a result, it was
felt that none of the welds were reliable. Rope lashings
were used for all charges thereafter.

(4) Inasmuch as such an excessive number of casualties
were discovered, the reliability of all torpedoes was
questioned during the time they were on board.

(5) At the firing point of the approach on a convoy, the
forward gyros were matching automatically and moving
slowly left. After the first torpedo was fired, the gyros
suddenly swung to 90° left in the torpedo room, and the
captain reported not matching. The left swing of
the gyros was only stopped by turning off the gyro setter
in the torpedo room. Investigation showed that the "B" Leech
Relay closed with the contacts welded shut. The holding
nut on the solenoid rod had vibrated loose, causing the
solenoid rod in the holding coil to bind in the closed
position. The power of the solenoid was sufficient to
pull the rod down and close the contacts against this
binding force, but the tension of the return spring was
too weak to overcome the binding. This caused the "B"
relay contacts to remain closed after the left gyro
signal had stopped and the solenoid de-energized. Since "B"
relay controls "Left Slew" of the gyros, this short
circuit caused the gyros to swing well beyond the matched
position. Adjustment of the holding nut, and cleaning of
the contacts completely repaired the casualty.

(L) RADIO:

(1) Equipment:

No casualties.

(2) Receipt of Haiku Schedules:

Haiku could not be copied in the western portion of the
Convoy College area due to very low signal strength on
4525, 6380, and 9090 kcs during the hours 1900 - 2030
GCT. 14390 kcs was found to be the best frequency for
receiving, but signal strength was not sufficient on
this frequency until after 2000 GCT.

- 40 - Enclosure (L)

— page 100 —
U.S.S. SEALION - Report of SECOND War Patrol (cont'd.)

(1) RADIO:

(3) Clearing Messages to ComSubPac:

On 3 September 1944, the SEALION had an urgent contact
report and an UP message to clear. Position at the time
was 17 N., 133 E. We began calling at 0001 (all times
GCT) about four hours after sunrise. At 0025 a station
answered, but his transmission was unreadable due to weak
signal strength and jamming of the circuit by other
stations. At 0058 the message was sent blind. At 0102 the
UP message was also sent blind. Both messages were sent
blind again at 0120 although the traffic on this circuit
- 8470 kcs - was still heavy. The transmitter was shifted
to 12465 kcs at 0215. Forty-five minutes of calling
raised no stations on this frequency. The transmitter was
shifted again at 0300, this time to the Task Force Command-
er's frequency - 4205 kcs. Only very weak signals
were heard. Haiku informed us at 0710 that
station WVNB1 had received portions of both messages and
requested repetition of them. WVNB1 was called immediately
on 8470 kcs and both messages were cleared after WVNB1
told all stations to observe circuit discipline. The
messages were receipted for at 0729, seven and one-half
hours after the first call. A similar situation was
encountered to a lesser degree on 17 September 1944.
Position: 19 N. - 125 E. Better circuit discipline was
observed on this date. The message, an UP, was cleared
after three hours. The first call went out at 0315, six

hours after sunrise. WVNB1 was the receipting station
again.

(4) Wolf-Pack Code:

The wolf-pack code carried on this patrol proved unadapt-
able to the ever-changing situation encountered on the
Big Campus. Recommendations are:

a. Calls:

The "alert" system was inadequate and confusing.
The Japs began using them shortly and added to the
consternation. The following system is suggested:
Set up several lists of four letter calls, more
than enough lists to cover all boats that might
enter the area within a month, and give each
boat a designation. When a boat
area it should be assigned a list and all other
submarines in the area so informed.

- 41 - Enclosure (..)

— page 101 —
U.S.S. SEALLION - Report of SECOND War Patrol (cont'd.)
(L) RADIO:
(4) Wolf-pack Code: (cont'd.)

a. Each list should contain at least forty-eight (48) calls,
   twenty-four (24) for the odd days and twenty-four (24)
   for even days of the month; one for each hour of the day.
   Beside each call there should be three-two letter authenti-
   cator to be used also as a receipt. The actual GCT time
   of transmission should govern the use in every case. If
   a transmission continued through the hour (time to change
   calls), the next authenticator would be used by the
   receiving boat.

b. Frequencies:

   Each patrol area should have one frequency for the entire
   area at any given time. It may be advisable to have a
   rotating schedule of frequencies, but is essential to have
   all boats in the area on the same one.

c. The Code:

   The code carried was a bit ambiguous and slow. Channel
   105 proved more explicit and faster. It is desired to all
   subs in this area and is usually set up and ready for use
   at all times. Channel 144 has the same disadvantages as the
   code carried.

d. Remarks:

   When we were closing the first enemy convoy attacked we
   intercepted a two letter code message. After some experi-
   mentation we found that it was a contact message concern-
   ing this convoy originated by TUNNY. We were fortunate
   in having on board a copy of the "Eradicator" pack code -
   this enabled us to utilize this contact information. This
   is an example of the desirability of furnishing all boats
   in an area with the same code.

(M) RADAR:

1. SJ: -
   No casualties occurred to the SJ in the 301 hours
   of operation. Maximum ranges on the convoys varied from
   25 to 28 thousand yards. The new slotted antenna improves
   the usefulness of the S.J. greatly. The SJ picked up
   planes consistently at 8 miles.

- 42 - Enclosure (A)

— page 102 —
.S.S. SEALION - Report of SECOND War Patrol (cont'd.)

(J) RADAR:
2. S.D.: - During the first half of the patrol the SD failed
   to pick up planes at 6 miles. During refit it was tuned
   by U.S.S. FULTON. When the original settings were
   restored it was fairly reliable at 14 miles. The SD has
   not proven itself of value because of low reliability
   and because it is too easily DFed. In enemy waters it is
   believed to attract more planes than it detects.

3. APR: - In two patrols no signals have been identified
   as enemy radar. The APR is constantly jammed with
   signals caused by the SJ, fans, air compressors, ice
   machine, and other ships machinery. Though it
   does pick up friendly radar and the VHF at short ranges,
   leading us to believe that it is not completely out of
   commission - thus far it has proven of no practical value.

(N) SOUND GEAR AND SOUND CONDITIONS:
   (a) Salt water in the forward torpedo room grounded the QC-JN
       training motor, burning out a field coil. This coil was
       replaced with one of similar characteristics from the
       air conditioning circulating water pump motor spares.

   (b) Sound conditions were very good to excellent. Screws
       were audible out to about ten thousand yards, and pings
       out to about twenty thousand yards or more. At depths
       greater than three hundred fifty feet, echo-ranging proved
       difficult but screws were still plainly audible. 17
       kilocycles was the Japanese echo-ranging frequency.

(O) DENSITY LAYERS:
       On both submerged attacks and evasions 5° negative grad-
       ients were encountered from the surface to 450 feet. A
       destroyer, later sunk, seemed to pick us up at 60 feet
       at 3000 yards by pinging. In general sound conditions
       were good.

(P) HEALTH, FOOD, AND HABITABILITY:
       Health was excellent until SEALION'S arrival in SAIPAN
       with the group of survivors. Several men subsequently
       developed mild cases of catarrhal fever, and seven or
       eight severe colds and sore throats were scattered among
       the crew. Most of these illnesses were cured prior to
       SEALION'S arrival in PEARL. The outbreak probably
       resulted from over crowding, loss of sleep, and irregular
       meals and routine while the survivors were aboard.

       - 43 - Enclosure (A)

— page 103 —
U.S.S. SEALION - Report of SECOND War Patrol (cont'd.)

(P) HEALTH, FOOD, AND HABITABILITY: (cont'd.)
     Food was generally good and well prepared. The ice-
     cream freezer produced a lot of desserts.

     SEALION requires additional air conditioning in the
     forward battery compartment and in the control room to be
     moderately comfortable while patrolling in tropical waters.
     Installation of such equipment during this coming refit
     is being requested.

(Q) PERSONNEL:
     The officers and crew performed their duties efficiently.
     In action against the enemy they showed a coolness which
     was inspiring to the commanding officer. In the rescue
     operations a principle concern of the commanding officer was
     to restrain their enthusiasm, their self-disregard in the
     work in hand.

     The executive officer, Lieut-Comdr. H. C. LAUERMAN, U.S.
     Navy, is worthy of special mention for his tireless efforts
     during the entire patrol and especially so during the rescue
     operations.

     A separate report of the rescue operations (C.O.,
     SEALION's conf. ltr. 08-44 of 24 September 1944) is being
     forwarded Commander Submarine Force, Pacific Fleet. In
     this letter the commanding officer recommends certain men
     and officers be considered for suitable award of medals
     or commendations.

     (a) Number of men on board during patrol:             75
     (b) Number of men qualified at start of patrol:       57
     (c) Number of men qualified at end of patrol:         64
     (d) Number of unqualified men making first patrol:    6
     (e) Number of men advanced in rating during patrol:

(R) MILES STEAMED - FUEL USED:

     MIDWAY to Area           34.5 mi.      31,07 gals.
     In Area                 404.5 mi.      6,400 gals.
     Area to SAIPAN         1331.9 mi.     18,965 gals.
     SAIPAN to Area         1213.7 mi.     15,610 gals.
     In Area                2205.5 mi.     28,110 gals.
     Area to SAIPAN         1207.9 mi.     20,055 gals.
     SAIPAN to PEARL        3423.0 mi.     40,620 gals.

     TOTAL                 13,378 miles   161,727 gals.

                               - 44 -             Enclosure (A)

— page 105 —
HIGH INTENSITY SPEAKER ADAPTION
ON "IMC" FOR INTER
VOICE COMMUNICATION

<-- #4 Note
Reproducer
DC 00-4

Portable Tran.
GND.
INPUT
INPUT
OUTPUT
OUTPUT
CONT 1
CONT 2
REL. PWR
PRESS TALK

<-- #3 Note
BRIDGE
CONNING TOWER

Conning Tower
1 mc station
Phone Plug
Phone Jack
<-- #1 Note
<-- #2 Note
Conning Tower
7mc T.B. Switch

<-- CIMC-6
<-- 2 SPARE LEADS
OUTPUT
CONT RM
Stuffing
Tube
CONTROL ROOM
WT-6
book #27K4
Control room
1&7 Stack

Notes:
1. Metal access plate replaced with bakelite
2. Impedance matching Output conn. C & 1.0
   Input conn. C & 1.0
   Reproducer type "M" Drwg. # 362-1
3. Reproducer type "M" Drwg. # 362-1
4. Portable transmitter type "B" Drwg. #62-1
   manuf. by Selectar fg. N.Y. Cat.
   Portable I.C. Coupling
5. Plug manuf. by Selectar fg. N.Y. Cat.
   For further instructions see "IC" Instruction book #27K4
   For general information

— page 106 —
MARINE DIVISION FORTY-FOUR
Care of Fleet Post Office,
San Francisco, California
3 October 1944

FD5-44/A16-3
Serial 095

-O-N-F-I-D-E-N-T-I-A-L
FIRST ENDORSEMENT to
USS SEALION Second
War Patrol.

From: The Commander Submarine Division FORTY-FOUR.
To : The Commander-in-Chief, U.S. 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: USS SEALION Second War Patrol, comments on.

1. The Second War Patrol of the SEALION was conducted in the LUZON
Area. The SEALION was one of three submarines forming a coordinated
attack group.

2. All torpedo attacks made by the SEALION were exceptionally well
planned, aggressively conducted and highly successful. A summary of torpedo
attacks follows:

ATTACK NUMBER 1 - This was a night attack on a six-ship heavily
escorted convoy which had been previously attacked by another
submarine and was in the process of reforming. The attack was
made on the surface and a large tanker was picked out for the
target. Six Mark 18 torpedoes were fired with a depth setting
of six feet; gyro angles were small and track angles good. The
range was 2600 yards. Overlapping ships presented a larger tar-
get than just the tanker. No hits were obtained and the reason
is unknown, unless possibly the submarine speed, 15 knots, may
have caused erratic performance of the torpedoes.

ATTACK NUMBER 2 - This was a four Mark 18 torpedo attack fired
from aft at the same tanker as in Attack No. 1 a few minutes
earlier. Good track angles were used and from a range of 1800
yards, two good hits were obtained which apparently broke the ship
in two. This was the culmination of an excellent night surface
attack.

ATTACK NUMBER 3 - This was a day periscope attack made on the same
convoy attacked earlier in the morning. (Attacks 1 and 2 above).
The SEALION obtained good firing position and was able to carry
out an attack on one of the new large Japanese UN-1 class destroy-
ers. Firing three Mark 18 torpedoes from a range of 2900 yards,
two excellent hits were obtained which set the destroyer on fire.
The destroyer undoubtedly sank as distinct breaking-up noises
were heard shortly afterwards.

- 1 -

— page 107 —
SUBMARINE DIVISION FORTY-FOUR
                                                                Care of Fleet Post Office,
                                                                San Francisco, California
                                                                3 October 1944

B5-44/A16-3

Serial 095

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

Subject: U.S.S. SEALION Second War Patrol, comments on.

— page 108 —
SUBMARINE DIVISION FORTY-FOUR
                                                                Care of Fleet Post Office,
                                                                San Francisco, California
                                                                3 October 1944

35-44/A16-3
Serial 095
-O-N-F-I-D-E-N-T-I-A-L
Subject:         U.S. SEALION Second War Patrol, comments on.

                 results were not seen. However, Allied prisoners from the trans-
                 port hit and picked up by the SEALION later gave valuable inform-
                 ation which proved that the SEALION'S five torpedoes sank the
                 large tanker, a large transport which was carrying them and an
                 even larger transport which had been hit and then caught on fire
                 from the tanker fire and later sank. Thus this excellent surface
                 radar attack created great damage to the enemy in the sinking of
                 three valuable ships.

                 3. The SEALION after its last attack, which sank a transport loaded
                 with English and Australian prisoners of war, returned to the scene of the sink-
                 ing on the 15th of September and rescued 54 of those prisoners. Four of those
                 died while the SEALION was enroute to SAIPAN. All of the prisoners were suffer-
                 ing from malaria, beri-beri, palegra, exposure and were in general
                 very poor physical condition. The outstanding performance of duty by the
                 pharmacist mate and other personnel of the SEALION in treating these prisoners un-
                 doubtedly saved more lives. Such loyalty and devotion to duty is highly commend-
                 able and warrants special merit.

                 4. It is of note that just prior to the first attack made in the early
                 morning hours of 31 August, the SEALION sighted what appeared to be a midget subma-
                 rine. Also the radar picked up what is believed to have been another one in the
                 near vicinity. These midget submarines may be employed to help protect convoys
                 as an anti-submarine measure.

                 5. The results obtained on the wire recorder by the SEALION should be
                 of interest, not only to the sound research personnel, but should also make good
                 recordings for study by sound school personnel in this area. It is recommended
                 that more of these records be obtained whenever possible.

                 6. The SEALION returned from patrol in good material condition, in an
                 excellent state of cleanliness and with a fine state of morale prevalent.

                 7. Commander Submarine Division FORTY-FOUR heartily congratulates the
                 commanding officer, officers and men of the SEALION for this outstandingly ag-
                 gressive and successful war patrol. Congratulations are also offered for the
                 rescue of the Allied prisoners of war and for the commendable performance of duty
                 in treating these men while enroute to port. This patrol is an excellent example
                 of a patrol "Well Done".

                                                                [SIGNATURE: E. W. GRENFELL.]

— page 109 —
SUBMARINE SQUADRON FOUR ll/tel

F35-4/A16-3 Fleet Post Office,
San Francisco, California,
6 October 1944

Serial 0383

CONFIDENTIAL

SECOND ENDORSEMENT to:
U.S.S. SEALION Report
of Second 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. SEALION - Report of Second War Patrol.

1. Forwarded, concurring in the remarks of the Commander
Submarine Division FORTY-FOUR.

2. It is a real pleasure to congratulate the Commanding
Officer, officers, and crew of this submarine who have completed
such an aggressive and successful patrol. The outstanding perfor-
mance of duty by all hands, and in particular the Pharmacist's Mate,
in their treatment of the rescued prisoners of war, probably saved
many lives.

3. It is recommended that the SEALION be credited with
inflicting the following damage upon the enemy:

SUNK
1 AO (EU) 10,000 tons
1 DD (Terutsuki class) (EC) 2,300 tons
1 AP (EU) 9,000 tons
1 AP (Rakuyo Maru) (EC) 9,419 tons
1 AO (EU) 10,000 tons
1 AP (EU) 10,000 tons
TOTAL 50,719 tons

[SIGNATURE: C. F. Erck]
C. F. ERCK.

— page 110 —
FF12-10/A16-3(15) SUBMARINE FORCE, PACIFIC FLEET nr 03461
Serial 02237 Care of Fleet Post Office,
San Francisco, California,
CONFIDENTIAL 12 October 1944.

THIRD ENDORSEMENT to NOTE: THIS REPORT WILL BE
SEALION Report of DESTROYED PRIOR TO
Second War Patrol. ENTERING PATROL AREA.

COMSUBSPAC PATROL REPORT NO. 541
U.S.S. SEALION - SECOND 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. SEALION (SS315) - Report of Second War Patrol.
(17 August to 30 September 1944).

1. The second war patrol of the SEALION was conducted in
the South China Sea Area. The SEALION, along with the U.S.S. PAMPA-
NITO (SS383) and the U.S.S. GROWLER (SS215), formed an attack group
with Lieutenant Commander T. B. Oakley, Jr., U.S. Navy, as group com-
mander and commanding officer of the GROWLER.

2. This patrol was another outstanding performance typical
of the SEALION. Five aggressive attacks were made early in the patrol,
and the SEALION then returned to Saipan for a torpedo reload and fol-
lowed up with two more attacks. In addition to inflicting very severe
damage on the enemy, the SEALION had the honor of rescuing 54 British
and Australian prisoners of war who were being transported from Singa-
pore to the Empire.

3. This patrol is designated as "Successful" for Combat
Insignia Award.

4. The Commander Submarine Force, Pacific Fleet, congratu-
lates the commanding officer, officers, and crew for this aggressive
and highly successful patrol. The entire Submarine Force is proud of
every officer and man in the SEALION for the splendid job each did in
the rescue and care of our unfortunate Allies. The SEALION is cre-
dited with having inflicted the following damage upon the enemy during
this patrol:

S U N K
1 - Large AO (NIPPON MARU Type) (EU) - 10,000 tons (Attack No. 2)
1 - DD (UN-1 Class) (EC) - 2,300 tons (Attack No. 3)
1 - Large AP (RAKUYO MARU Type) (EU) - 10,000 tons (Attack No. 4)
1 - Large AP - RAKUYO MARU (EC) - 9,400 tons (Attack No. 7)
1 - Large AP (EU) - 10,000 tons (Attack No. 7)
1 - Large AP (EU) - 10,000 tons (Attack No. 7)

TOTAL SUNK 51,700 tons

Distribution and authentication J. H. BROXMA Jr. ORIGINAL
on following page. [UNCLEAR: S.] MICRO
PHOTO-LAB OP-16
RETURN TO F-4253

— page 111 —
FF12-10/A16-3(15)
Serial 02237

CONFIDENTIAL

THIRD ENDORSEMENT to
SEALION Report of
Second War Patrol.

COMSUBSPAC PATROL REPORT NO. 541
U.S.S. SEALION (SS315) - Report of Second War Patrol.
Subject: (17 August to 30 September 1944).

— page 112 —
[HANDWRITTEN: 565]
[HANDWRITTEN: 6585]

FF12-10/S68/(20)
SERIAL 01106
CONFIDENTIAL

From:
To :
Subject:

1.
    A supersonic converter and recorder has been in-
stalled in the vessel under your command for the purpose of record-
ing all enemy anti-submarine sound activity, propeller noises, bomb
and depth charge explosions. It is also desired to record all
subsurface noises, fish noises, and any other peculiar noises heard
while enroute to or in the operating areas.

2.
    These recordings will be used in the study of enemy
anti-submarine sound measures, and also for instructive measures
in our own sound schools. In view of the valuable information
which it is expected to obtain from them, it is desired that they
be made with care and upon all possible occasions.

3.
    Upon completion of this patrol the recordings will
be submitted to Commander Submarine Force, Pacific Fleet, together
with a report on the performance of both the converter and the wire
recorder.

Copy to:
Comdr Subron 4,6,8,10,14,20,22,24
ComSubSTrainPac,
ComDesPac,
CincPac.

SUBMARINE FORCE, PACIFIC FLEET
                                                                At
                                                Care of Fleet Post Office;
                                                San Francisco, California,
                                                JUN 4 1944

The Commander Submarine Force, Pacific Fleet.
The Commanding Officer, U.S.S. SEALION.
Supersonic Converter and Recorder for Same.

[SIGNATURE: C. A. LOCKWOOD, Jr.]

[HANDWRITTEN: CincPac #2081-39) P.S. II 11390 Jacket No. 2 (SLR)]

— page 113 —
SS315/S64/65
Serial (09-44)
C-O-N-F-I-D-E-N-T-I-A-L

U.S.S. SEALION (SS315)

Care of Fleet Post Office,
San Francisco, California,
29 September 1944.

From: The Commanding Officer.
To: The Commander Submarine Force, Pacific Fleet.

Subject: Wire Recorder - Description and forwarding of
wire spools.

Reference: (a) ComSubPac conf. ltr. FF12-1C/553/(20) serial
01106 of 4 June 1944.

1. On the second war patrol of the U.S.S. SEALION a
wire recorder, serial number 390 was carried aboard. This instru-
ment was placed under the supervision of Lieut.(jg) Frederick S.
HOLT, S-V(RS), USNR., whose battle station assignment was to employ
this recorder in the best possible manner to obtain recordings of
voice communications during torpedo attacks, all enemy anti-submarine
sound activity, propellers noises, bomb and depth charge explosions
and any unusual noises. During the following actions with the
enemy recordings were made as described below:

(A) Night Surface Radar Attack on a Japanese Convoy on
the early morning of 31 August 1944. Spool #1,
0-33 minutes; spool #2, 0-15 minutes. During this
action the recorder microphone was placed directly
in front of the 44 MC speaker in the radio room.
The recording was started at 0327 (-9 zone time)
while the radar tracking party was in operation.
At 0335 the ship went to battle station night
attack. Numerous distant depth charges were
heard during this part of the action. At 0431
six torpedoes forward were fired at a tanker. All
missed. At 0435 four torpedoes were fired aft
obtaining two hits on the tanker previously
missed. The SEALION then retired at flank speed.

(B) Daylight Submerged Attack on a DD and AP leading
a convoy on the morning of 31 August 1944. Spool
#2, 15-23 minutes. During the first part of this
action the wire recorder was connected to the JP
sound gear. The first sound recorded was tube
#1 being fired at about 0720. Tube #3 was fired
about 8 seconds later and tubes #4, #5, and #6
followed shortly after. Three hits were obtained
on the DD and two on the AP. Upon comparing data
later, it was discovered that many sounds were
missed by the JP, which were picked up by the JK.

- 1 -

— page 114 —
U.S.S. SEALION (SS315)

SS315/S64/65
Serial (09-44) (cont'd.)                                29 September 1944.
C O N F I D E N T I A L
Subject:

— page 115 —
**U.U.S. SEALION (SS315)**

SS315/S64/65
Serial (09-44) (cont'd.)                                29 September 1944.
CONFIDENTIAL
Subject: Wire Recorder - Description and forwarding of
           wire spools.

— page 116 —
U.S.S. SEALION (SS315)

SS315/S64/65
Serial (09-44) (cont'd.) 29 September 1944.
CONFIDENTIAL
Subject: Wire Recorder - Description and forwarding of
wire spools.

(B) Terrence Patrick JOHNSON, Serial No. NX58915,
8th Divisional Signals, 8th Australian Division,
A.I.F. and John Charles HARGHTON, Serial No.
23719, Seaman H.M.A.S. PERTH, R.A.N. Spool
#6, 0-33 minutes.

(C) C. Mark Wheeler, Serial No. 840625, Hdq. 9th
Coast Regiment, Robert Earnest LAWS, Serial
No. NX18368, 2nd 18th Battalion, A.I.F.,
Malay. Spool #3, 15-33 minutes.

3. The wire spools described herein are being
forwarded under separate cover.

E. T. REICH.

— page 117 —
[HANDWRITTEN: incpac Box #265 (1-39 Ser.)]
[HANDWRITTEN: SEALION, 2ND W.P.]

[HANDWRITTEN: 29 SEP 1953 DM.]
[STAMP: RECEIVED OCT 5 1944 10530]

COMMANDER SUBMARINE FORCE
UNITED STATES PACIFIC FLEET

Care of Fleet Post Office,
San Francisco, California.

FF12-10/S64/S2-10
Serial 02178
CONFIDENTIAL

5 OCT 1944

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

Subject: Wire Recorder Records made by U. S. S. SEALION during
Second War Patrol.

Reference: (a) Commanding Officer, U.S.S. SEALION, Ltr. S8315/S64/S5,
Serial 09-44 dated 29 September 1944.

Enclosure: (A) Copy of Reference (a).
(B) Under separate cover four spools of wire recordings of
torpedo attacks. [HANDWRITTEN: missing]

1. Reference (a) describes a series of wire recordings made by
the U. S. S. SEALION during her second war patrol. The recordings cover
two general subjects; interviews of British and Australian prisoners of war
rescued by the SEALION on 12 Sept.ber 1944, when the Japanese ship in which
they were being transported from Singapore to the Empire was sunk, and actual
torpedo attacks made during this patrol.

2. One set of disk recordings of all wire recordings has been
made, and by copy of this letter are forwarded as follows:

(a) Survivor interviews -- to the Officer-in-Charge, Joint
Intelligence Center, Pacific Ocean Area.

(b) Torpedo attack records -- to the Commander Submarine
Training Command, Pacific Fleet.

3. Enclosure (B) consists of the wire recordings of the torpedo
attacks. They are forwarded with the request that they be delivered to the
Underwater Sound Laboratory, Fort Trumbull, New London, Connecticut, for re-
production of master disk records and production of an appropriate number
of copies for distribution as training records.

Copy to:(Less Enclosure (B)).
O-in-C, JICPOA (No. Del. Dir. If Cincpac.
ComSubTraCom (Refers (Training Aide)
ComSubTraCom (ComSubLant
Underwater Sound Lab., Fort Trumbull.

C. A. LOCKWOOD, Jr.

[HANDWRITTEN: Cincpac Box #208 (1-32) R.S. #11390 + R.S. #2478 (No.2/568)]

— page 118 —
DECLASSIFIED - DOD DIR 5200.9
of 27 Sep 58
BY [UNCLEAR: 92C] DATE [HANDWRITTEN: 4/22/71]

SS315/.16-3/sfc

U.S.S. SEALLION (SS315)

Serial ( 615-44 )
[STAMP: DECLASSIFIED] A L

c/o Fleet Post Office,
San Francisco, Calif.

3 December 1944.

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

Subject: U.S.S. SEALLION - Report of War Patrol No. THREE.

Enclosures: (A) Subject Report.
(B) Track Chart for ComSubPac.

1. Enclosure (A), covering the THIRD War Patrol of
this vessel, conducted in the western part of the EAST CHINA SEA,
south of SHANGHAI to the North point of FORMOSA, during the
period 31 October to 3 December 1944, is forwarded.

[HANDWRITTEN: E T Reich]
E. T. REICH.

[STAMP: FILMED]
[HANDWRITTEN: 100153]

— page 119 —
U.S.S. SEALION - Report of THIRD War Patrol.

(A) PROLOGUE:

U.S.S. SEALION arrived PEARL HARBOR for refit on 30 Sept-
ember 1944 on completion of SECOND War Patrol. Refit was completed
by the Submarine Base and Submarine Division FORTY-FOUR Relief
Crew on 17 October 1944. The following major work items were
accomplished.

1. New type Mk. 8 T.B.T's. installed.
2. Installation of twin 20 mm gun on cigarette deck
   and single mount aft on main deck.
3. Blanked off torpedo tube outboard vents.
4. Installed Mare Island type JP mount.

On 18 October 1944 Lieut-Comdr. Charles F. PUTMAN, USN.,
reported aboard for temporary duty as a P.C.O. On 22 October 1944
Lieut-Comdr. Henry C. LAUERMAN, USN., was detached. Post repair
trials, sound tests, and training exercises were conducted from
20 October - 29 October. SEALION ready for sea on 31 October 1944,
carrying 22 Mk. 18-1 torpedoes and 3 Mk. 27 torpedoes.

(B) NARRATIVE:

31 October 1944
1330 (UV) Departed PEARL HARBOR for THIRD War Patrol pursuant to
           ComSubPac's OpOrd 366-44, proceeding in company with
           U.S.S. KETE.

4 November 1944
0830 (Y) Arrived MIDWAY for fuel.
1530 (Y) Departed MIDWAY for patrol area in company with U.S.S.
           KETE.

5 - 10 November 1944
           Enroute patrol area.

11 November 1944
1410 (K) Sighted mast through high periscope and commenced closing
           (Ship contact #1). Target is an armed trawler about
           250 - 300 tons, similar to the "whale killer" type
           picket boat. Put the crew at battle stations - surface.

- 1 -
Enclosure (A)

— page 120 —
U.S.S. SEALION - Report of THIRD War Patrol (cont'd.)
11 November 1944

1440 (K) Sent contact message to KETE giving our approximate
         position.
1447 (K) Sighted another trawler (Ship contact #2). Decided to
         attack it first as he is dead ahead and closing.
1450 (K) Sent additional contact report to KETE and told her we
         were attacking.
1521 (K) Commenced firing 4" gun at a range of 4000 yards.
         Target returned fire with a bow 40 mm, closing range
         rapidly giving us a continuous zero angle. Turned
         away when range had closed to 2000 yards and opened up
         with 20 mm, .30 calibers and .50 calibers, targets
         fire now dropping all around us, uncomfortably close.
         Several hits on our main deck - no personnel casualties.
         Here was a good argument for having the gun aft.
         Turned in again and commenced firing 4". Again target
         closed the range and we were forced to turn away. Gun
         platform was very unsteady and gun crew getting very
         wet. Seas about force 3. Decided to break off as we
         had not yet hit the target and the situation was becom-
         ing involved - the other trawler was heading toward us
         to join the fight.
1550 (K) Secured from battle stations surface. Sent message to
         KETE giving details and requesting rendezvous.
1930 (K) Effected rendezvous.
2144 (K) Sent SEALION Serial Number ONE.

12 - 13 November 1944
         Enroute patrol area.

14 November 1944
0927 (I) Approaching Eastern entrance TOKARA STRAIT. Sighted
         plane, 2 engine bomber, 5 miles, submerged (Aircraft
         contact #1).
1002 (I) Surfaced.
1006 (I) Sighted plane, 2 engined bomber, 4 miles, submerged
         (Aircraft contact #2).
1101 (I) Surfaced.

         - 2 - Enclosure (A)

— page 121 —
U.S.S. SEALION - Roport of THIRD War Patrol (cont'd.)

14 November 1944

1117 (I) Sighted plane, 2 ongined bombor, 6 milos, submor god
          (Aircraft contact #3).

1352 (I) Sighted plane, 2 engined bombor, 10 milos (Aircraft
          contact #4), docided to spond tho rost of tho day
          submerged.

1744 (I) Surfaced and hoaded for aroa - transiting TOKARA STRAIT.

15 November 1944

0615 (I) Dived - 15 milos southwost KUSAKAKI SHIMA.

0900 (I) Sighted plane, "Pote" (Aircraft contact #5).

0932 (I) Sighted plane, "Pote" (Aircraft contact #6).

1435 (I) Sighted plane, unidentifiod (Aircraft contact #7).

1805 (I) Surfaced.

2045 (I) Radar contact on DANJO GUNTO, boaring 341° T, rango
          32 milos.

16 November 1944

0131 (I) Changed courso to intorcept roported convoy.

0350 (I) Broke off chaso as latost roport show wo aro out in
          loft fiold.

0846 (I) Sighted plane, "Botty" (Aircraft contact #8), submor god.

0912 (I) Surfaced.

0930 (I) Sighted motor sampan (Ship contact #3).

1325 (I) Whilo holding firing circuit chock, accidontly firod #8
          tubo with both doors closod. Torpedo loft tho tubo.
          (Soo Major Dofocts and Damago).

1853 (I) Stoppod to inspoct damago to outor door and to convort
          #4 Fuol Ballast to Main Ballast Tank. Could not
          dotormino oxtont of damago to tubo door - a caroful
          oxamination was impossiblo duo to tho hoavy soas -
          outor door opon, cannot bo closod, tubo 8 out of
          ommission.

1926 (I) Proccoding to patrol aroa.

                                  - 3 -                                 Enclosuro (A)

— page 122 —
U.S.S. SE.LION - Report of THIRD War Patrol (cont'd.)

16 November 1944
2251 (I) Radar contact on BARREN ISLAND, bearing 250° T, range
           11 miles.

17 November 1944
0625 (I) Submerged for patrol off southern entrances to SHANGHAI.
           Sighted numerous sampans and junks throughout the day.
1838 (I) Surfaced.

18 November 1944
0628 (I) Submerged, continuing patrol off SHANGHAI southern
           entrance. Numerous junks and sampans all around us,
           making submerged patrol difficult - counted at least
           fifty junks in sight several times during the day.
1146 (I) Sighted plane, "Noll" (Aircraft contact #9).
1317 (I) Sighted floating mine, about 400 yards on our port quarter.
1710 (I) Hydrogen explosion in battery space of torpedo in #5
           tube. (See Major Defects and Damage).

19 November 1944
1835 (I) Surfaced in the middle of a Chinese junk fleet. Counted
           35 junks within 8000 yards of us, on the P.P.I. screen.
1914 (I) Backed down full and fired torpedo in No. 5 tube.
0636 (I) Submerged, patrolling off YUSHAN LIEHTAO, along 20
           fathom curve.
1831 (I) Surfaced. Patrolling on southerly courses.

20 November 1944
1225 (I) Sighted unidentified plane, submerged. (Aircraft
           contact #9).
1342 (I) Surfaced. Patrolling on southerly courses.

21 November 1944
0020 (I) Radar contact at 44,000 yards, on our starboard quarter,
           (Ship contact #3) three pips, very clear and distinct.
           Came to the normal approach, went ahead flank on four
           engines, and commenced tracking. Overcast sky, no moon,
           visibility about 1500 yards, calm sea.

- 4 - Enclosure (A)

— page 123 —
U.S.S. SEALION - Report of THIRD War Patrol (cont'd.)

0048 (I) Two large pips and two smaller pips now outlined on radar
screen at a range of 35,000 yards. These are the great-
est ranges we have ever obtained on our radar. Pips so
large at so great a range, we first suspected land. It
was possible to lobe switch on the larger targets at
32,000 yards - we now realized we probably had two
targets of battleship proportions and two of large
cruiser size as our targets. They were in a column
with a cruiser ahead followed by two battleships and
a cruiser astern, course 060° T, speed 16 knots, not
zig-zagging.

0146 (I) Three escorts now visible on the radar, at range of
20,000 yards. One on either beam of the formation,
and one on the starboard or far quarter. We are gaining
bearing slowly but surely. The formation is now on our
starboard beam. Seas and wind increasing.

0245 (I) Ahead of task force. Turned in and slowed for attack,
keeping our pointed at the near destroyer who is now
bow
1800 yards on the port bow of our target, the second
ship in column. Able now to make out shape of near
destroyer from bridge. Kept swinging left with our
bow directly on the destroyer, and at

0256 (I) Fired six torpedoes, depth set 8 feet, at the second
ship in column, range 3,000 yards, believed to be a
battleship. Came right with full rudder to bring the
stern tubes to bear, and at

0259 - 30 (I) Stopped and fired three torpedoes, depth set 8 feet,
from stern tubes at the third ship in column (ie. the
second battleship). Range 3100 yards. Range to near
destroyer at time of firing stern tubes about 1800 yards.
While firing stern tubes O.O.D. reported he could make
out outline of the near cruiser on our port quarter.
During firing of bow tubes, the bridge quartermaster
reported he could make out outline of a very high
superstructure on target he said it looked to him like
the pagoda build of the Jap battleships.

0300 (I) Saw and heard three hits on first battleship - several
small mushrooms of explosions noted in the darkness.

0304 (I) Saw and heard at least one hit on second battleship -
this hit gave a large violent explosion with a sudden
rise of flames at the target, but it quickly subsided.

- 5 - Enclosure (A)

— page 124 —
U.S.S. SE LION - Report of THIRD War Patrol (cont'd.)
21 November 1944

0304 - 07 (I) Went ahead flank, opening to westward from target group.
                 Noted several small explosions, flashes, and probably
                 lights in vicinity of target group.

0308 (I) Heard a long series of heavy depth charge explosions
                 from vicinity of enemy force - we are now about 5,000
                 yards from group. P.P.I. shows one escort opening and
                 running to east of target group - they think we came
                 in from east, evidently.

0310 (I) When about 8,000 yards west of enemy force, commenced
                 reload, slowed and paralleled target group. Continued
                 tracking.

0330 (I) Chagrined at this point to find from subsequent tracking
                 enemy group still making 16 knots, still on course 060°
                 T. I feel that in setting depth at 8 feet in order to
                 hit a destroyer if overlapping our main target, I've
                 made a bust - looks like we only dented the armor belt
                 on the battleships.

0406 (I) Tracking indicates target group now zigzagging. We are
                 holding true bearing, maybe gaining a little. Called
                 for maximum speed from engineers - they gave us 25%
                 overload for about thirty minutes, then commenced
                 growling about sparking commutators, hot motors, et al,
                 and we're forced to slow to flank. Sea and wind increasing all
                 the time - now about force 5 or 6 - taking solid water
                 over bridge, with plenty coming down conning tower
                 hatch. SEALION making about 16.8 to 17 knots with
                 safety tank dry, and using low pressure blower often
                 to keep ballast tanks dry. Engine room taking much
                 water thru induction.

0430 (I) Sent SEALION Serial Number TWO.

0450 (I) Noted enemy formation breaking up into two groups - one
                 group dropping astern. Now P.P.I. shows: (a) One
                 group up ahead to consist of three large ships in
                 column - cruiser, battleship, cruiser with a destroyer
                 just being lost to radar view up ahead. Range to this
                 group about 17,000 yards. (b) Second group dropping
                 astern of first to consist of a battleship with two
                 destroyers on far side close aboard - range to this
                 group about 15,000 yards and closing.

- 6 - Enclosure (A)

— page 125 —
U.S.S. SEALION - Report of THIRD War Patrol (cont'd.)

21 November 1944

0451 (I) Shifted target designation, decided to attack second
           group, which contains 1 battleship, hit with 3 torpedoes
           on our first attack. Tracking shows target to have
           slowed to 11 knots. Things beginning to look rosy
           again.

0512 (I) In position ahead of target, slowed and turned in for
           attack.

0518 (I) Solutions on T.D.C. and plot is getting sour - target
           must be changing speed.

0520 (I) Plot and TDC report target must be stopped. Radar says
           target pip seems to be getting a little smaller. Range
           to target now about 17,000 yards.

0524 (I) Tremendous explosion dead ahead - sky brilliantly
           illuminated, it looked like a sunset at midnight. Radar
           reports battleship pip getting smaller - then it has
           disappeared - leaving only the two smaller pips of the
           destroyers. Destroyers seem to be milling around
           vicinity of target. Battleship sunk - the sun set.

0525 (I) Total darkness again.

0527 (I) Made decision to resume chase on first group. Came
           around to northeast, increased speed to flank again.
           Range now 20,000 yards to this group.

0550 (I) Target group now zigzagging, about 30° either side base
           course 060° T. Target has speeded up to 19 knots. They
           are gradually pulling away from us. We are holding on
           hoping to get a look through high periscope at daylight
           to definitely identify targets. Range at this time
           about 24,000 yards.

0640 (I) Forced to slow to standard speed - as we are taking
           solid water over bridge, plenty of it coming down the
           hatch. Seas building up - now about force 6 and we are
           headed right into them. Sunrise is at 0715. We hope
           to hold on at this speed and still get a look at target
           group. Range is steadily increasing - range now
           26,000 yards.

0650 (I) Sighted floating mine on starboard beam - distant about
           200 yards.

                               - 7 -                               Enclosure (A)

— page 126 —
U.S.S. SEALION - Report of THIRD War Patrol (cont'd)
21 November 1944

0730 (I) Although after sunrise, the sky is completely overcast,
        heavy haze lies on horizon - visibility about 10,000
        yards. Seas continue to build up - more water coming
        down hatch.

0742 (I) A heavy wave came over and swamped us - Engine rooms got
        solid water - took a large shot of water in the hull
        ventilation system. Green water came over bridge and
        down into conning tower. Slowed to 9 knots - Range to
        target group opened out quickly to 35,000 yards.

0744 (I) Submerged. Turned all hands to cleaning up water and
        repairing minor damage (See Major Defects and Damage).

1826 (I) Surfaced - Patrolling on northerly course.

2003 (I) Sent SEALION Serial Number THREE.

22 November 1944

0550 (I) Changed course, to 220° T, heading for position where
        battleship sunk. Decided to run on surface in order to
        close and pick up a survivor if possible.

1230 (I) Sighted 2 "Nolls" very close aboard, about 3 miles,
        coming in fast and low on starboard quarter. (Aircraft
        contact #10). It is difficult to understand why we
        did not sight them sooner - they were away from the
        sun, the visibility was excellent, and the planes were
        flying low. Submerged, expecting a thorough working
        over with bombs and a certain strafing. Great was our
        wonder, to get to 150 feet without anything happening.

1235 (I) At periscope depth - observed one "Noll" circling us.
        Now we began to doubt whether this was a "Noll" or a
        Mitchell B-25, due to their similar appearance and to
        the lack of offensive action by the planes. Had my
        experts, two junior officers with "fly fly" experience,
        look the plane over through the scope. They could not
        entirely agree. Decided it was prudent to call it a
        "Noll" - went deep to 100 feet and proceeded to clear
        area - this because one of the experts said he thought
        he saw the "Noll" drop something - possibly a dye
        marker. As a result of this experience I feel the
        Good Lord is taking care of us and the Japs are an
        inscrutable race.

- 8 -
Enclosure (A)

— page 127 —
U.S.S. SE.LION - Report of THIRD War Patrol (cont'd.)

22 November 1944

1835 (I) Surfaced - proceeding southward to position where battle-
           ship sunk.

23 November 1944

0120 (I) When about in position where we estimated battleship sunk,
           Lat. 26-15 N. Long. 121-49 E., passed through a large
           oil slick. Commenced searching on various courses in
           vicinity - nothing sighted but oil. At daylight was
           able to make out direction of large oil slick - decided
           to run down it.

0716 (I) Sunrise.

0717 (I) When about two miles S.W. of original oil patch, ran
           through a very heavy oil slick. Ran down this slick
           without sighting anything. Disappointed in not locating
           any wreckage and becoming anxious about planos - so at

0738 (I) Submerged. Continued search at periscope depth.

1053 (I) Sighted plane unidentified. (Aircraft contact #11).

1402 (I) Sighted plane, a "Betty" (Aircraft contact #12) distance
           3 miles.

1835 (I) Surfaced. Patrolling southern end of area - proceeding
           to make landfall on northern tip of FORMOSA.

2240 (I) Radar contact on HOKA SHO, bearing 200° T., 48,000 yards,
           headed for reported enemy force off Northwestward tip
           of FORMOSA.

24 November 1944

0307 (I) Patrolling off Northwestern tip of FORMOSA. Radar
           interference is showing frequently on the SJ. It is
           similar to SJ interference, but not definitely
           identified as such. (See Section U).

0405 (I) Report of enemy force now changed to Northeastern tip
           of FORMOSA. Headed north to patrol possible route of
           this force.

0709 (I) Submerged - patrolling east-west line.

1310 (I) Surfaced on course west. Closing CHINA COAST to fix
           position by radar.

- 9 -
Enclosure (A)

— page 128 —
U.S.S. SE.LION - Report of THIRD War Patrol (cont'd.)

24 November 1944

1902 (I) Passed through oil slick. Lat. 26-04 N. Long. 121-02 E.

2100 (I) Made Radar contact on TUNG YUNG TAO - Range 48,000 yards.
          Closed coast and commenced patrolling to northward
          along 20 fathom curve.

25 November 1944

0649 (I) Submerged. Patrolling off N.N.KISHAN LIGHTAO - just
          outside of 20 fathom curve. Sighted numerous junks
          during day.

1825 (I) Surfaced. Position doubtful. Closed CHINA COAST and
          fixed position by Radar 10 miles east N.N.KISHAN LIGHTAO.

2000 (I) Headed Southward on course 168° T, to patrol approaches
          to KEELUNG and Northwestern FORMOSA.

26 November 1944

0205 (I) Passed through large oil slick. Position Lat. 26-18 N.
          Long. 121-36 E.

0652 (I) Submerged. Patrolling approaches to Northern FORMOSA.
          and FOOCHOW.

1044 (I) Sighted plane "Dave" (Aircraft contact #13).

1118 (I) Sighted plane "Betty" (Aircraft contact #14).

1454 (I) Sighted plane "Rufe" (Aircraft contact #15).

1704 (I) Sighted plane "Dave" (Aircraft contact #16).

1724 (I) Sighted two L/S steam trawlers, course 110°, speed 7
          knots. Trawlers were in column, not zigzag - range
          about 9000 yards. The situation looked very suspicious
          - having all the evidence of an anti-submarine swoop.
          We considered the many plane contacts made in the Eddy
          and the sighting of this anti-sub outfit and made
          decision to avoid the trawlers, but to patrol in vicinity
          on surfacing - it looks like something is coming through
          here soon.

1850 (I) Surfaced - patrolling area. On surfacing we had a bright
          moon overhead with clear blue sky - however, there was
          a misty surface fog, visibility about 200 yards.

- 10 -                                            Enclosure (A)

— page 129 —
U.S.S. SE.LION - Report of THIRD War Patrol (cont'd.)
26 November 1944

2000 (I) Fog lifted - visibility overhead unlimited, bright
          moon. There is a slight haze on horizon. Estimate
          surface visibility about 10,000 yards.

2020 (I) Radar contact bearing 033° T, range about 71,000 yards.
          (Ship contact #5) This phenomenal range was not
          believed possible. Radar officer insisted on legitimacy
          of contact. Believed to show no land possible on
          bearing. Commenced tracking - radar ranges were
          estimates in as much as pip was well off the
          radar range scale. Changed course to North, changed speed to 17 knots to
          close contact.

2030 (I) First estimate target course 210°, speed 22 knots.
          Changed course to 070° T to get dead ahead of target.

2035 (I) Radar lost contact at estimated range of 50,000 yards.
          This is hard to understand. Believe we may have a skip-
          distance phenomena here - so continued approach with
          data on hand.

2045 (I) In position dead ahead of estimated target's track,
          slowed to 6 knots. Radar still does not have contact.

2100 (I) Still no radar contact - changed course to 035°, changed
          speed to 12 knots to close possible target or
          investigate area in that direction.

2114 (I) Radar gets sudden contact ahead - a saturation pip at
          19,300 yards - three target indicated, one very large
          two small. Tracking indicates target zigzagging - we
          seem to be well out on targets starboard bow - target
          base course about 165°. Target closing range rapidly.
          Changed course to right, increased speed to flank, 4 engines
          making about 19.7 knots, endeavoring to get in position
          for submerged attack. With bright moon and surface
          visibility, surface attack impossible.

2118 (I) Sighted two targets from bridge - range 14,000 yards -
          one very large target one small target.

2130 (I) Target group is gaining true bearing on us. Range is
          closing slowly. It looks like we'll have to let this
          outfit go by. R.R. observer reports two very
          definite radar signals, very strong and getting stronger.
          (See Section U).

- 11 - Enclosure (A)

— page 130 —
U.S.S. SEALLION - Ropert of THIRD War Patrol (cont'd.)
26 November 1944

2135 (I) Indications that target may have zigged toward us. Called
     for cro speed. Range beginning to close rapidly. Two
     targets visible from bridge recognized as a destroyer
     and a battleship. Range to destroyer about 9200 yards.
     Our data now indicatos target speed 21 knots, course
     about 165. We are about 5000 yards off track of
     battleship.

2155 (I) We can't close distance to track - everytime we change
     toward target the range to near destroyer closes too
     fast. Cleared bridge of all hands except O.O.D.
     Will have to dive now in any event. Radar now has
     four definite pips - 3 small ships, destroyers - one
     very large, the battleship. A.I.R. reports enemy radar
     apparently steady on us and lobing.

2158 (I) Submerged to 60 feet and turned in for a 90° track on
     battleship. On diving range to destroyer was 8000
     yards. Could not pick up battleship in periscope
     immediately, but at

2201 (I) Sighted very large blob in scope - bearing checked
     very well with set up on T.D.C. However, ranges
     indicated we would probably be about 4500 yards off
     track. Although we know the Mk. 18 torpedoes might
     not run far enough and that the T.D.C. would show no
     solution for this run in excess of 4000 yards, decided
     to fire bow tubes at this important target trusting that
     we might hit with luck.

2205 (I) With gyro's rapidly approaching zero fired 6 torpedoes,
     depth set 12 feet. Immediately after firing sound
     reported light fast screws coming in on port beam -
     wont deep to 100 feet, rigged for silent
     running.

2209 (I) First depth charge - very loud, fairly close. Ordered
     200 feet.

2217 (I) Boat settled on bottom at 275 feet. Second depth charge
     - very, very loud, seems close. Secured everything -
     decided to sit tight on the bottom for awhile. JP
     gears and gear proved its value here - good bearings were
     received while sitting on bottom - indicated destroyer
     was making swoop to southward of us. I believe that
     either he wasn't too sure of his contact or he was
     anxious to rejoin the battleship, for he didn't linger
     too long with us. The JI operator reported his signal
     gradually getting weaker.

- 12 - Enclosure (..)

— page 131 —
U.S.S. SEALLION - Report of THIRD War Patrol (cont'd.)

26 November 1944

231. (I) Off the bottom - Jr still has a faint contact to south.
    Headed north at 200 foot.

27 November 1944

0003 (I) Surfaced. Radar reports definite contact on enemy task
    force about 200° T, range about 65,000 yards. These
    phenomenal radar ranges are puzzling - however, having
    sighted the battleship from the bridge prior to diving,
    I believe them. Decided to patrol northward along
    track of enemy force.

0020 (I) Radar contact - range 70,000 yards, bearing 060° T.
    Two or three large pips in view on screen. These are
    evidently heavy ships. First estimate course 220° T,
    speed 20 knots. Range is closing rapidly.

0025 (I) Changed course to 060° T to close contact. Decided to
    cross over to port flank of estimated target track,
    based on our knowledge of first task force's track.
    Went ahead 17 knots.

0035 (I) Radar lost contact - here again we believe the skip-
    distance phenomena is working. When in position, which
    we considered to be on port flank of estimated target
    track - slowed and came to course 040° T.

0057 (I) Sent SEALLION Serial Number FOUR to ComSubPac. Report
    of first enemy force contacted.

0102 (I) Sent another contact report to ComSubPac on second
    enemy force contacted.

0122 (I) Searching to northward along estimated track of enemy.

0240 (I) Sent SEALLION Serial Number FIVE to ComSubPac.

0245 (I) Radar has contact, bearing 106° T. Range 46,000 yards.
    Reversed course, went ahead full and commenced searching
    direction of radar contact. Range is opening. A.P.R.
    reports two type radar signals, strong.

0307 (I) Radar lost contact. Evidently this enemy force had been
    advised of our presence and made a wide detour of our
    reported position. Also, from the A.P.R. signals, it
    may be that the enemy detected our radar and was able
    to determine our bearing in order to run around us.
    Broke off search and resumed northward patrol.

- 13 -
Enclosure (A)

— page 132 —
U.S.S. SEALLION - Report of THIRD War Patrol (cont'd.)

27 November 1944
0445 (I) Radar contact, bearing 163° T, range 60,000 yards and
           opening. Here again we believe is another case of skip-
           distance. The last three radar contacts have been on
           the same enemy force, we believe. This outfit
           maneuvered around us at high speed.
0652 (I) Submerged - patrolling to northward along enemy track,
           hoping more heavy freight would come by.
1832 (I) Surfaced, continued patrolling northward. Received
           message from ComSubPac ordering us to work our way out
           of the area to the north. Continued northward on
           course 040°.

28 November 1944
           Clearing area to the northward.

29 November 1944
0555 (I) Radar contact on DANJO GUNTO, bearing 089° T, 65,000
           yards. Heavy overcast skys, and frequent rain squalls -
           decided to stay on the surface as long as visibility
           continues to be poor.
0948 (I) Sky's beginning to clear and visibility increasing.
           Submerged.
1510 (I) Sighted plane, "Dave" (Aircraft contact #17).
1747 (I) Surfaced, heading for TOKARA STRAIT, visibility very
           poor, continous rain and heavy overcast horizon.
2300 (I) Transited TOKARA STRAIT and set course for GUAM.

30 November 1944
           Enroute GUAM.
0841 (I) Sighted and picked up a one man rubber life boat. Lat.
           28-06 N. Long. 132-02 E. It appeared to have been in
           the water for some time, and was split open on the seams
           - no identifying marks on it.

1 December 1944
           Enroute GUAM.

- 14 -
Enclosure (A)

— page 133 —
U.S.S. SEALION - Report of THIRD War Patrol (cont'd.)

1 December 1944
0937 (I) Sighted plane, unidentified, submerged.
0950 (I) Surfaced.

2 December 1944
Enroute GUAM

3 December 1944
0550 (I) Rendezvous with escort (PC1599).
1129 (I) Moored port side to U.S.S. SHERRY, APRA HARBOR, GUAM.

- 15 - Enclosure (A)

— page 134 —
U.S.S. SE.LION - Report of THIRD War Patrol (cont'd.)

(C) WEATHER:
The weather during the period of this patrol in general
was as described in the Coast Pilot for this period.
Skys were totally overcast 60% of the time, and
occasional patches of light fog were present.

(D) TIDAL INFORMATION:
No unusual tides or currents were noted.

(E) NAVIGATIONAL AIDS:
Since it was overcast 60% of the time, SJ Radar was used
frequently to obtain fixes. As there are numerous small
islands off the coast good results were obtained.

Navigational Aids Observed:

Lights No.
TONOTING #3224 Normal Characteristics
TOKI #3222 Normal Characteristics
STEEP ISL. #3206 Normal Characteristics
HEISHIN ISL. #3226 Shows a dim steady green light
to seaward when bearing 000°
to 220°. Normal characteristics
observed when bearing 180° T.

- 16 - Enclosure (A)

— page 135 —
U.S.S. SEALION - Report of THIRD War Patrol (cont'd.)
(F) SHIP CONTACTS:

NO. : TIME : L.T. : INITIAL:COURSE : HOW : REMARKS
: DATE : LONG : TYPE(S) : RANGE : SPEED : CONT. :

1. :1500(K) :30-10 N.:2 Armed:15,000 : 270° : High : Patrolling
:11 Nov. :148-40 E:Trawler : :13 kts : Peri: (See Gun
: : :Killer : : : : Attack #1)
: : :Typo : : : :

2. :0930(I) :31-51 N.:Motor :12,000 : 060° : High : None
:16 Nov. :126-23 E:Sampan : : 6 kts.: Peri:
: : : : : : : :

3. :0020(I) :25-57 N.:2 BB's :44,000 : 060° : Radar: See Attacks
:21 Nov. :121-63 E:2 CL or : :16 kts: : #1 and #2
: : :CA; 3 DD :

4. :1724(I) :25-37 N.:2 Armed: 9,000 : 110° : Peri: Patrolling
:26 Nov. :120-44 E:Trawler : : 7 kts :
: : :Killer : : : :
: : :Typo : : : :

5. :2020(I) :25-52 N.:1 BB :70,000 : 160° T: Radar: See Attack
:26 Nov. :120-53 E:3 DD's : : 20 kts: : #3

- 17 - Enclosure (A)

— page 136 —
U.S.S. SE LION - Report of THIRD War Patrol (cont'd.)
(c) AIRCRAFT CONTACTS: (ALL TIMES ZONE(-9) ITEM)

NO. : TIME : LAT. : TYPE(S) : INITIAL : EST. : HOW :
    : DATE : LONG : : RANGE : COURSE : SPEED : CONT. : REMARKS

— page 137 —
U.S.S. SEALLION - Report of THIRD War Patrol (cont'd.)

(G) AIRCRAFT CONTACTS: (ALL TIMES ZONE(-9) ITEM)
: TIME : L.T. :INITIAL: EST. : HOW
NO. : DATE : LONG :TYPE(S): RANGE : COURSE: CONT.: REMARKS

<output>### Summary

The provided image is a document that appears to be a page from a U.This is a list of the top 10 most common words in the English language, along with their frequency rank and part of the speech.

1. the (frequency rank: 1, part of speech: article)
2. be (frequency rank: 2, part of speech: verb)
3. to (frequency rank: 3, part of speech: preposition)
4. of (frequency rank: 4, part of speech: preposition)
5. and (frequency rank: 5, part of speech: conjunction)
6. a (frequency rank: 6, part of speech: article)
7. in (frequency rank: 7, part of speech: preposition)
8. that (frequency rank: 8, part of speech: conjunction)
9. have (frequency rank: 9, part of speech: verb)
10. I (frequency rank: 10, part of speech: pronoun)

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* The most common words are often function words, such as articles, prepositions, and conjunctions.
* The most common words are often used in a variety of different contexts.

I hope this information is helpful!

— page 138 —
U.S.S. SEALION - Report of THIRD War Patrol (cont'd.)
(H) ATTACK DATA TORPEDO ATTACK REPORT FORM
U.S.S. SEALION Torpedo Attack No. ONE Patrol No. THREE
Time: 0256 (I) Date: 21 Nov. 1944. Lat. 26-09 N. Long. 121-23 E.

TARGET DATA - DAMAGE INFLICTED

Description: Enemy Task Force believed to be composed of 3 DD's,
two CA's or CL's and two BB's, four ships in column
destroyers 1st and 4th, Battleships 2nd and 3rd,
1000 yards between ships. Three escorting destroyers,
one 1800 yards on port bow of 1st battleship, one
1800 yards on starboard bow of 1st battleship and
one 1800 yards on starboard quarter of 1st battle-
ship. No. 1 BB was the target for this attack.
Ships Sunk: One BB (EU).
Ships Damaged or
probably sunk: None.
Damage determined by: One BB observed to blow up with violent
explosion as though boilers went up. Nothing
visible after explosion. There were three good
radar pips (one BB and two DD) before explosion and
only two DD pips after explosion. This ship had
received three observed torpedo hits.

Target Draft: 30 ft. Course: 057°. Speed: 16 kts. Range: 3000 yds.

OWN SHIP DATA

Speed: 5 kts. Course: 168°. Depth: Surface. Angle: 0°

FIRE CONTROL AND TORPEDO DATA

Type Attack: Night Radar, Radar firing bearings. Bow tubes.

| | 6 | 5 | 4 | 3 | 2 | 1 |
|:|:|:|:|:|:|:|
| Tubes Fired: | 90 P | 90 P | 90 P | 90 P | 90 P | 90 P |
| Track Angle: | 346 | 345 | 341 | 343 | 338 | 335 |
| Gyro Angle: | 8 ft. | 8 ft. | 8 ft. | 8 ft. | 8 ft. | 8 ft. |
| Depth Set: | - | - | - | - | - | - |
| Power: | | | | | | |
| Hit or Miss: | Miss | HIT | HIT | HIT | Miss | Miss |
| Erratic: | No | No | No | No | No | No |
| Mark Torpedo: | 18-1 | 18-1 | 18-1 | 18-1 | 18-1 | 18-1 |
| Serial No: | 56727 | 56824 | 54870 | 54901 | 56479 | 56125 |
| Mark Exploder: | 8-5 | 8-5 | 8-5 | 8-5 | 8-5 | 8-5 |
| Serial No: | 10157 | 10380 | 9950 | 9554 | 8630 | 8671 |
| Actuation Set: | Contact | Contact | Contact | Contact | Contact | Contact |
| Actuation Actual: | - | - | Contact | Contact | - | - |
| Mark Warhead: | 18-2 | 18-2 | 18-2 | 18-2 | 18-2 | 18-2 |
| Serial No: | 4025 | 4252 | 4104 | 4228 | 4220 | 4199 |

- 20 -
Enclosure (A)

— page 139 —
U.S.S. SEALLION - Report of THIRD War Patrol (cont'd.)

(H) ATTACK DATA TORPEDO ATTACK REPORT FORM

U.S.S. SEALLION Torpedo Attack No. ONE Patrol No. THREE
Time: 0256 (I) Date: 21 Nov. 1944. Lat. 26-09 N Long. 121-23 E.

FIRE CONTROL AND TORPEDO DATA

Tubes Fired: 6 5 4 3 2 1
Explosivo: TIX-2 TIX-2 TIX-2 TIX-2 TIX-2 TIX-2
Firing Interval: 10 10 10 10 10
Type Spread: 1° Divergent
Sea Conditions: State 3
Overhaul Act: S/M Base, Pearl Harbor, T.H.

Remarks:
Three torpedo hits were seen and heard on the
target, which was the second ship in column. The
enemy formation remained intact and speeded up
to 14 knots. Two hours and four minutes after
firing this ship, the No. 1 BB fell out of
formation and slowed to 11 knots. The remaining
units of the task force went on detaching two
destroyers to screen the cripple. SEALLION
commenced approach on this cripple. After
tracking for twenty minutes we were in position
to swing to firing course when the damaged ship
stopped dead in the water for five minutes and
then exploded violently. The whole sea and sky
were lit up brilliantly, giving the appearance
of a sunset. Less than 30 seconds later the
bright glare and flames suddenly disappeared,
and at the same time the large radar pip diss-
appeared, leaving only the two small DD pips.

- 21 - Enclosure (A)

— page 140 —
U.S.S. SEALLION - Report of THIRD War Patrol (cont'd.)

(H) ATTACK DATA TORPEDO ATTACK REPORT FORM

U.S.S. SEALLION Torpedo Attack No. TWO Patrol No. THREE
Time: 0300 (I) Date: 21 Nov. 1944. Lat. 26-09 N. Long. 121-23 E.

TARGET DATA - DAMAGE INFLICTED

Description: The target was No. 2 BB, 1000 yards astern of the
No. 1 BB in Attack No. ONE.
Ships Sunk: None.
Ships Damaged: One BB (EU)
probably Sunk: One BB (EU)
Damage Determined by: One timed hit on No. 2 BB, and at the same
time a large explosion was seen and heard on this
target, followed by flames which were subsequently
partially extinguished.

Target Draft: 30 ft. Course: 290 Speed: 16 kts. Range: 3600 yds.

OWN SHIP DATA

Speed: 6 knots Course: 290. Depth: Surface. Angle: 0°

Type Attack: Night radar. Radar bearings. Stern tubes.

| | 10 | 9 | 7 |
|:|:-----|:-----|:-----|
| Tubos Fired: | 10 | 9 | 7 |
| Track Angle: | 130 P | 130 P | 130 P |
| Gyro Angle: | 184 | 182 | 181 |
| Depth Set: | 8 ft. | 8 ft. | 8 ft. |
| Erratic: | -- | -- | -- |
| Hit or Miss: | Miss | Miss | HIT |
| Erratic: | No | No | No |
| Mark Torpedo: | 18-1 | 18-1 | 18-1 |
| Serial No: | 56599 | 55659 | 56653 |
| Mark Exploder: | 8-5 | 8-5 | 8-5 |
| Serial No: | 10358 | 10338 | 10295 |
| Actuation Set: | Contact | Contact | Contact |
| Actuation Actual: | -- | -- | Contact |
| Mark Warhead: | 18-2 | 18-2 | 18-2 |
| Serial No: | 4217 | 4134 | 4152 |
| Explosive: | TPX-2 | TPX-2 | TPX-2 |
| Firing Interval: | 10 | 10 | |
| Type Spread: | 1° Divergent | |
| Sea Conditions: | Stato 3. | |
| Overhaul Activity: | S/M Base, Pearl Harbor, T.H. | |
| Remarks: | Immediately after attack No. one, ships was | |
| | swung and stern tubes fired at No. 2 BB. | |
| | Following the timed hit, there was a large | |
| | explosion and flames. The fires died down, | |
| | but flames could be seen periodically on this | |
| | ships from then on. | |

- 22 - Enclosure (A)

— page 141 —
U.S.S. SEALION - Report of THIRD War Patrol (cont'd.)

(H) ATTACK DATA

U.S.S. SEALION Gun Attack No. ONE Patrol No. THREE.
Time: 1410 (K) Date: 11 Nov. 1944. Lat. 30-59 N. Long. 148-57 E.

TARGET DATA - DAMAGE INFLICTED

Sunk: None
Damaged or One Japanese Armed Trawler of "Whale-Killer" type
Probably Sunk: 250 - 300 tons.
Damage Determined by: No observed 4" hits, but believe target
sustained several 20 mm hits.

DETAILS OF ACTION

Rounds Expended.
8"-50 H.C. - 26
4"-50 Comm. - 4
20 mm - 1500
.50 cal. - 1100
.30 cal. - 1250

Opened fire with all guns about 4,000 yards. Very
unstable gun platform and no hits obtained. Target put
his bow on us, and commenced firing a 4" gun. His first
burst was close, one hit on main deck aft. When range
closed to about 3000 yards enemy fire became erratic
believed due to our own machine gun fire. We turned
away at range of 2000 yards, and continued firing 20 mm.
At 1000 yards commenced firing 4" again. Discontinued
action when it was apparent that 4" could not hit with
effect at this range - also, the approach of second
trawler to join the fight made matter to even for the Japs.

- 23 - Enclosure (A)

— page 142 —
U.S.S. SEALION - Report of THIRD War Patrol (cont'd.)
(H) ATTACK DATA TORPEDO ATTACK REPORT FORM

U.S.S. SEALION Torpedo Attack No. THREE Patrol No. THREE
Time: 2205 (I) Date: 26 Nov. 1944. Lat. 25-45 N. Long. 120-55 E.

TARGET DATA - DAMAGE INFLICTED

Description: One Battleship escorted by three DD's, contacted by
radar at about 70,000 yards in bright moonlight
shapes visible from bridge at 14,000 yards.
Ships Sunk: None
Ships Damaged: None
Probably Sunk: None
Damage Determined by:

Target Draft: ?. Course: 200° T. Speed: 21 kts. Range: 4300 yds.

OWN SHIP DATA

Speed: 4 kts. Course: 120° T. Depth: 64 feet. Angle: 0°

Type Attack: Night radar tracking - submerged at range 8000 yards.
Fired on periscope bearings, generated ranges. Bow
tubes.

| | 1 | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|
| Tubes Fired: | 1 | 2 | 3 | 4 | 5 | 6 |
| Track Angle: | 90 S | 90 S | 90 S | 90 S | 90 S | 90 S |
| Gyro Angle: | 345 | 346 | 350 | 348 | 349 | 349 |
| Depth Set: | 12 ft. | 12 ft. | 12 ft. | 12 ft. | 12 ft. | 12 ft. |
| Power: | | | | | | |
| Hit or Miss: | Miss | Miss | Miss | Miss | Miss | Miss |
| Erratic: | No | No | No | No | No | No |
| Mark Torpedo: | 18-1 | 18-1 | 18-1 | 18-1 | 18-1 | 18-1 |
| Serial No: | 55002 | 55546 | 54060 | 56774 | 56277 | 55790 |
| Mark Exploder: | 6-5 | 6-5 | 6-5 | 6-5 | 6-5 | 6-5 |
| Serial No: | 9920 | 8630 | 10396 | 10530 | 10395 | 10203 |
| Actuation Set: | | | C O N T A C T | | | |
| Actuation Actual: | | | | | | |
| Mark Warhead: | 18-2 | 18-2 | 18-2 | 18-2 | 18-2 | 18-2 |
| Serial No: | 4269 | 4271 | 4034 | 3647 | 4151 | 3632 |
| Explosive: | TIX-2 | TIX-2 | TIX-2 | TIX-2 | TIX-2 | TIX-2 |
| Firing Interval: | 10 | 10 | 10 | 10 | 10 | 10 |
| Type Spread: | | | 1° Divergent | | | |
| Sea Conditions: | Flat Calm. | | | | | |
| Overhaul Activity: | S/M Base, Pearl Harbor, T.H. | | | | | |
Remarks: High visibility due to 7/8ths moonlight forced us to
dive at range 8000 yards. Unable to close inside
of 4000 yards due to high speed of target. Fired
without solution light due to excessive torpedo
run, but decided a BB was worth this chance.
Believe target zigged away a few seconds after
we fired.

- 24 - Enclosure (A)

— page 143 —
U.S.S. SEALION - Report of THIRD War Patrol (Cont'd)

(I) MINES:

Two floating mines were sighted

1 at Lat. 30-04 N. Long. 122-53 E.
1 at Lat. 26-31 N. Long. 122-12 E.

The mines sighted had four visible horns.

(J) ANTI SUBMARINE MEASURES

From BARREN ISLAND, south along the 20 fathom curve to
TUNG YUNG TAO no anti-submarine patrols were encountered, how-
ever, along the twenty fathom curve are hundreds of junks.
Much evasive action is necessary to avoid running them down.
Fifty to sixty miles off the coast, in the northern
sector, surface running is feasible. In the southern
vicinity of FORMOSA, numerous plane contacts made indicate
the Japs maintain a close air patrol - surface running here
is difficult unless the weather closes in to hamper air
search. The day prior to our contacts with the enemy task
force heading south, the area between TUNG YUNG TAO and HOKA
SHO was throughly patrolled by at least five air craft and
an A/S sweep made by two A/S trawlers did not - they
steamed through area slowly evidently listening.
The A/S measures used by the destroyers escorting the
enemy heavy ships was as usual - random depth charging -
high speed running.

(K) MAJOR DEFECTS AND DAMAGE HULL

While holding a test of firing circuits, number eight
torpedo tube was fired with both doors closed, and 300
pounds impulse built up. The torpedoman conducting the
test had broken the interlock and thrown up the lever to fire
before bleeding down the impulse air. The torpedo
left the tube. It is not known whether the outer door was
carried away or not. The outer door operating linkage is
bent out of shape, and it is impossible to move
this linkage in either direction by hand or power.

For torpedo Casualty See Section on Mk. 18 Torpedoes.

ELECTRICAL

The 1 MC - 7 MC was grounded out when a large amount of
water was taken down the hull induction. The entire system
with its incorporate alarms was out of commission for a
period of four (4) hours.

- 25 - Enclosure (A)

— page 144 —
U.S.S. SEALION - Report of THIRD War Patrol (cont'd.)
(L) RADIO
I. Walkie Talkie (Signal Corps Radio Receiver and trans-
mitter BC-659-H)

The "Walkie Talkie" is an Army Engineering receiver and trans-
mitter completely self contained with built-in speaker and a
handset. Dimensions are: 12" X 12" X 15" with a telescoping
whip-type antennae. The entire unit weighs approximately
35 lbs.

SEALION, in company with KETE, throughly tested this equip-
ment and obtained the following data.

Location of Equipment, etc. | Maximum Range for Satis-
| factory communications.
(a) Bridge Shelf forward | 25 miles and still coming
(late afternoon test) | in loud and clear.
whip antennae.
(b) Gear in Radio Shack using | 16 miles (5 X 5 quality)
regular flat antennae.
(c) Gear in Radio Shack using | 7 miles (5 X 5 quality)
mast antennae. Both
Boats surfaced.
(d) Gear in Radio Shack using | 5 miles (Heavy swells,
SD mast antennae. One | depth control at 50 foot
boat surfaced, one sub- | difficult - Sea force.
merged.
(e) Gear in Radio Shack using | 4 miles (Heavy swells,
SD mast. Both boats at | Sea force 4)
48 feet.

This gear can be operated on wet or dry cells. The
above data was obtained using dry cells.

It is the opinion of the operating personnel that this
equipment gives exceptionally reliable service. Good qual-
ity, or readability, was noted in every case.

In a smooth or flat sea, it is the opinion of this
commanding officer that the subject equipment will permit
voice communications between submerged S/M's at a range in
excess of 5 miles using the SD antennae.

It is recommended strongly that further investigation and
tests be made with this gear. The SEALION and KETE will
take the equipment on this patrol and make further report
after patrol experience.
- 26 - | Enclosure (A)

— page 145 —
U.S.S. SEALION - Report of THIRD War Patrol (cont'd.)

(L) RADIO

Although, the instruction book issued with subject recr
makes strong issue of the nature of antennae and lead in
characteristics - this "non-export" C.O. believes that this
may not necessarily be true. The fact is the gear "works"
on all antennae installed in SEALION.

It is suggested that the source of power supply be:

(a) Primarily by dry cells or wet battery.
(b) Secondarily, by adaption of VHF motor
generator supply.

HAIKU

Reception of the Haiku skeds was good generally, except
for a couple of hours prior to sunrise. It was found that
16370 Kcs. was best for copying during that time. Jamming
on those Haiku frequencies was moderate and it was most
noticeable on 6045 Kcs., after sunset and during the 1100
and 1300 GCT skeds. As a rule the jamming could be fairly
well tuned out or a shift to another frequency would eli-
minate the trouble sufficiently so that a full sked could
be copied intact.

CHINA BROADCASTS

All China Broadcasts were copied without any trouble. The
signal was of sufficient strength at all times.

WOLF-PACK

It was noted that on the Wolf Pack frequencies there was
too much tuning and also too many "Q" signals were exchanged
thus violating the security of these frequencies. Jap code
was heard at numerous times on various frequencies which were
effective in accordance with the wolf pack frequency table.
Signals were heard by stations sending two to six hundred
miles away so it appears that too much power was being used
by various ships working amongst their own packs.

JAMMING

We are forwarding some jamming recorded on a wire recorder
to the Counter Measure School, Pearl Harbor.

- 27 - Enclosure (A)

— page 146 —
U.S.S. SEALION - Report of THIRD War Patrol (cont'd.)

(L) RADIO
TRANSMISSION
All messages were transmitted on 8470 Kcs. and they were
receipted for expeditiously. One or two calls were all that
was necessary to establish communication on this ship-shore
circuit. Jamming was light during transmission periods. In
one instance, after an attack on 21 November, we were able
to phrase, encode, transmit and get a receipt for our contact
report within ninety minutes of firing. Seven minutes later
the message appeared on the sked.

(M) RADAR
SJ-1. Operated 200 hours with no major casualties. The
first battleships were picked up at 44,000 yards and the es-
corts about 22,000. On 26 November an atmospheric phenomena
occurred. Upon surfacing at sunset there was a low hanging
fog mist giving visibility about 200 yards. The sky overhead
was absolutely clear. Shortly after, the mist cleared two
pips appeared about 75,000 yards closing rapidly. Their
bearing was well away from land and they could not have been
rain squalls. When the range had closed to 40,000 yards
the pips became smaller and disappeared. Fifty minutes later
four saturated pips popped up suddenly at 19,300 yards on
the same bearing as the first two. As the range closed
the pips were identified as three destroyers and a battleship.
Upon surfacing after the attack the task force had opened
to about 65,000 yards. The pips were very large and sharp.
Shortly after this two more large pips were picked up to the
north about 70,000 yards. When the range closed to about
50,000 yards they faded as before. Contact was not regained
for several hours. When they were picked up again the range
was 48,000 yards opening rapidly. This group was tracked
out to 65,000 yards. The only way that these terrific
ranges can be explained is that we were getting
some atmospheric gradient deflected our beam up at
about 20,000 yards and down at about 50,000 yards. During
this period we got astounding ranges on the land also.

SD was used only two hours. When we surfaced after a plane
attack on 20 Nov. but no SD was cut in to check, the plane closed to six
miles without being picked up. It is still believed that
the SD is not worth the space it takes up.

- 23 - Enclosure (A)

— page 147 —
U.S.S. SEALLION - Report of THIRD War Patrol (cont'd.)

(N) SOUND GEAR AND CONDITIONS

    1.  Casualties - None

    2.  Conditions - Sound conditions were excellent in the
        water. This was probably due to isothermal water and an
        injection temperature of approximately 72° F.

    3.  General - The JK-QC and QB sound gear continue to
        be noisy while being trained. Otherwise, performance
        was adequate.

        The JP-1 stood SEALLION in good stead
        after attack #3. Lying on the bottom at 280 feet, the
        JP was our only source of information. Its topside
        location was greatly appreciated. The JP-1 operator
        tracked a destroyer out to an estimated 30,000 yards.
        This range is estimated from turn count, original speed
        of target group and true bearings. At this time it
        should be noted, however, that the boat was extremely
        quiet and lying on bottom in isothermal water.

(O) DENSITY LAYERS

    No unusual density layers were recorded. Conditions were
    found to agree in general with H.O. Misc. Publication
    No. 11,301-A.

(P) HEALTH, FOOD, AND HABITABILITY

    The general health of the officers and crew was very
    good. The following diseases were treated: 1 case of
    Cellulitis of the foot, and 1 case of Boc Scabies of both
    feet.

    The food was ample and well prepared.

    The habitability of the ship was good. The additional
    blower installed in the supply line forward has done
    much to improve the air conditioning in the forward
    battery and forward torpedo room. We hope to get the
    additional cooler unit during the coming refit.

(Q) PERSONNEL

    Officers and crew performed their duties most efficiently.
    The courage and enthusiasm shown by the gun crews in the
    gun action against the armed trawler was inspiring.

- 29 - Enclosure (A)

— page 148 —
U.S.S. SEALION - Report of THIRD War Patrol (cont'd.)

(Q) PERSONNEL

    Number of men on board during patrol 75
    Number of men qualified at start of patrol 59
    Number of men qualified at end of patrol 59
    Number of unqualified men making their first patrol 12
    Number of men advanced in rating during patrol

(R) MILES STEAMED - FUEL USED

    PEARL to area 4475 mi. 54,567 gals.
    In Area 1759 mi. 16,435 gals.
    Area to GUAM 1790 mi. 23,600 gals.

(S) DURATION

    Days enroute to area 15
    Days in area 12.2
    Days enroute to base 5
    Days submerged 10.0

(T) FACTORS OF ENDURANCE REMAINING

    TORPEDOES FUEL PROVISIONS PERSONNEL FACTOR
    5 40,150 30 days 28 days

Limiting Factor this patrol:

    Expenditure torpedoes and despatch directive from
    ComSubPac.

- 30 - Enclosure (A)

— page 149 —
U.S.S. SEALION - Report of THIRD War Patrol (cont'd.)
(U) RADIO AND R.D.R. COUNTERMEASURES

...R - For the first time the A.R. and S.J. gave useful
information. This is due to the filter made for us by RCM,
S/M Base, Pearl and increased experience on our part. The
filter installed in the power load cut out about 75% of all
noise signals. It is not perfect but is a step in the right
direction. Reports of signals observed are included in this
report. It appears that radar on 79 mcgs; pulse rate 500;
pulse width 25 micro. sec. is used on most of the islands in
this area for air search. Frequencies from 76 to 3400 mega-
cycles were searched continuously. No. 10 cin. radar was
detected, however on 24 November off TANSUI KO, NORTHERN
FORMOSA SJ interference was encountered. The wave from
[UNCLEAR: ] was slightly different from SJ. No other submarines were
known to be in the vicinity. The frequency of this signal
was about 3040, pulse rate about 1800, pulse width about two
micro seconds, sweep rate about 15 RPM.

SUMMARY OF ENEMY RADAR SIGNALS

| FREQUENCY | PULSE RATE | PULSE WIDTH | USE |
|---|---|---|---|
| 160 | 60 | 15 | Land based air search |
| 90.5 | 750 | 20 | Land based air search |
| 76 | 500 | 27 | Land based air search |
| 78 | 500 | 25 | Land based air search |
| 79 | 500 | 25 | Land based air search |
| 80 | 500 | 30 | Land based air search |
| 169 | 510 | 3.5 | Land based air search |
| 105 | 500 | 25 | Ship borne air search |
| 175 | 500 | 7 | Ship borne air search |

- 31 - Enclosure (A)

— page 150 —
U.S.S. SEALION - Report of THIRD War Patrol (cont'd.)
INTERCEPTION OF ENEMY RADAR TRANSMISSIONS

1. Ship - U.S.S. SEALION SS315 15 Nov. 1944 Report No. ONE
2. Area covered on this mission - 14 - 15 November 1944 Transit
of TOKARA STRAIT.
3. Enemy radar was probably land based.
(a) Suspect station on KURO SHIMA. Occasional SJ interference
when near island. This SJ interference was not caused by
10 CM radar because coil TN 4 was clear of contacts. It
probably was a high harmonic of the 160 m.g.s. signal.
4. Intercept equipment APR 1 and SP 1.
5. (a) Frequency 160 m.g.s. Dial Readings None
(b) PRF 60 cycles How Measured SP 1
(c) Pulse Width 15 micro. sec. How Measured SP 1
(d) Sketch pulse
[Drawing of a pulse waveform]

(e) Was lobe switching used No
(f) Polarization of enemy signal - unknown.
(g) Sweep Rate - Slow and irregular.
6. (a) Radar is believed used for air search.

- 32 - Enclosure (..)

— page 151 —
U.S.S. SEALION - Report of THIRD War Patrol (cont'd.)
16 Nov. 1944 Report No. TWO
INTERCEPTION OF ENEMY R.D.R TRANSMISSIONS

1. Ship U.S.S. SEALION (SS315)
2. Area covered 15 - 16 November 1944. Fifteen miles south of
   DANJO GUNTO.
3. Enemy Radar was land based.
   (c) Station on DANJO GUNTO.
4. Intercept equipment - APR 1 and SPA 1.

5. (a) Frequency 900 mcs. Dial reading None
   (b) PRF 750 cycles How measured SPA
   (c) Pulse Width 20 microsec. How measured SPA
   (d) Sketch pulse.
   / \
   \ /

   (f) Polarization Unknown.
   (g) Sweep Rate: One revolution every 3½ minutes.

6. (a) Radar was used for air search.

7. Action of radar. The antenna appeared to have one minor
   lobe 130° from the main lobe four minor lobes to the left
   of the major lobe and three minor lobes to the right of
   the major lobe assuming clockwise rotation. These minor
   lobes were about 15% as strong as the main lobe.

8. The information on this report is considered very accurate
   since the signal was observed for about six hours.

- 33 - Enclosure (A)

— page 152 —
U.S.S. SEALION - Report of THIRD War Patrol (cont'd.)
18 Nov. 1944 Report No. THREE
INTERCEPTION OF ENEMY RADAR TRANSMISSIONS

1. Ship U.S.S. SEALION (SS315)
2. Area covered this mission. Patrol thirty miles off YUSHAN
   LIEHTAO, CHUSAN ARCHIPELAGO CHINA. 10 - 19 November 1944.
3. Enemy Radar was believed to be land based.

4. Intercept equipment - APR 1 and SPA 1.

5. (a) Frequency - 76 mcs.
   (b) PRF - 500 cycles
   (c) Pulse Width - 27 microsec.
   (d) Sketch pulse.
   [Drawing of a pulse shape, rising sharply, then flat, then falling sharply]

   Dial readings - None
   How measured - SPA
   How measured - SPA

   (e) Lobo switching was not used.
   (f) Polarization - unknown.
   (g) Swoop rate - not swooping.

6. (a) Radar was probably used for air search.
   [HANDWRITTEN: NOT]
7. Radar did not seem to swoop. The signal was only immediately loud at thirty miles

- 34 - Enclosure (..)

— page 153 —
U.S.S. SALLION - Report of THIRD War Patrol (cont'd.)
13 Nov. 1944 Report No. FOUR
INTERCEPTION OF ENEMY R.DAR TRANSMISSIONS

1. Ship U.S.S. SALLION (SS315)
2. Area covered this mission: Patrol 10 miles east of SIHO IS.
   LIGHT (34.0, 31.0) CHINA 13 - 19 November 1944.
3. Enemy Radar is believed to be land based.
4. Intercept equipment - AN/R 1 and S. 1.
5. (a) Frequency - 169 mcs.                               Dial readings - None
   (b) PRF - 510 cycles.                                  How measured - SPA
   (c) Pulse width - 3.5 microsec.                        How measured - SI
   (d) Sketch pulse.

   (e) Lobe switching was not used.
   (f) Polarization - unknown.
   (g) No swoop.
6. (a) Radar is believed to be air search.

- 35 -                                                    Enclosure (A)

— page 154 —
U.S.S. SALLION - Report of THIRD War Patrol (cont'd.)
                                        19 Nov. 1944 Report No. FIVE
INTERCEPTION OF ENEMY R.D.R. TRANSMISSIONS

1. Ship U.S.S. SALLION (SS315)
2. Area covered this mission. Patrol off SHIJO IS. LIGHT CHIN.
   19 November 1944.
3. Enemy radar is believe to be land based.
4. Intercept equipment - APR 1 and SR. 1.
5. (a) Frequency - 73 mcs.                     Dial readings - None
   (b) PRF - 500 cycles                       How measured - SR.
   (c) Pulse width - 25 microsec.             How measured - SR.
   (d) Sketch pulse.

   (e) Lobe switching was not used.
   (f) Did not sweep.
   (g) Polarization - unknown.

6. Radar is believed to be air search.
7. Radar appeared to be high power. At 2300 (Zone -9) station
   went off the air.

                                        - 36 - Enclosure (..)

— page 155 —
U.S.S. SEALLION - Report of THIRD War Patrol (cont'd.)
21 Nov. 1944 Report No. SIX

INTERCEPTION OF ENEMY R.D.R TRANSMISSIONS

1. Ship U.S.S. SEALLION (SS315).
2. Area covered this mission. 50 miles northwest of Northern tip
   of FORMOSA on 21 November 1944.
3. Enemy radar location is unknown.

4. Intercept equipment - AR 1 and SR 1

5. (a) Frequency - 79 mcs.
   (b) P.R.F - 500 plus 5
   (c) Pulse width - 25 microsec
   (d) Sketch pulse.
   Dial readings - None
   How measured - S.M.
   How measured - S.M.

   (e) Lobe switching was not used.
   (f) Sweep irregular.
   (g) Polarization unknown.

6. Use of Radar is unknown.

7. Signal was very weak. Several hours after first reception of
   the signal enemy men of war were picked up. These ships had
   no radar between 78 mcs. and 3400 mcs. They were BB's, CA's
   and DD's. This signal was heard at irregular intervals from
   21 November to 24 November 1944.

- 37 -
Enclosure (..)

— page 156 —
U.S.S. S.LION - Report of THIRD War Patrol (cont'd.)
26 Nov. 1944 Report No. S.L.V.N

INTERCEPTION OF ENEMY R.D.R TRANSMISSIONS

1. Ship U.S.S. S.LION (SS315)
2. Rdr covered this mission. 26 - 27 November Attacking enemy
   task forces north of FORMOSA STR.ITS.
3. Location of enemy radar is unknown.

4. Intercept equipment - MR 1 and S.A. 1.

5. (a) Frequency - 30½ mcs.             Dial readings - Nono.
   (b) PRF - 500 cycles                 How measured - SPA
   (c) Pulse width - 30 microsec.       How measured - SPA
   (d) Sketch pulse.

   [Image of a pulse waveform]

   (e) Lobe switching was not used.
   (f) Polarization unknown.
   (g) No sweep.

6. Radar is believed to be air search.

7. This signal was heard during an attack on enemy battleships
   and destroyers but it is believed this radar may be land
   based because similar signals have been heard near the
   coast of CHINA.

- 30 -                                        Enclosure (A)

— page 157 —
U.S.S. SE LION - Report of THIRD War Patrol (cont'd.)
26 Nov. 1944 Report No. EIGHT

INTERCEPTION OF ENEMY R.D.R TRANSMISSIONS

1. Ship U.S.S. SE LION (SS315).
2. Area covered this mission. 26 - 27 November attacking enemy
   task forces north of FORMOSA STRAIT.
3. Enemy radar was ship borne - one either BB's or DD's possibly
   both.

4. Intercept equipment - AN/R 1 and S.R. 1.

5. (a) Frequency - 105 mcs.
   (b) PRF - 500 cycles
   (c) Pulse width - 25 microsec.
   (d) Sweep pulse.

   Dial reading - None.
   How measured - S.R.
   How measured - S.R.

(e) Lobe switching was used.
(f) Polarization unknown.
(g) Sweep was irregular and slow indicating hand power.

6. (a) Use of enemy radar is unknown but surface search is
   suspected. We may have been picked up at 9000 yards.

7. Radar signals was heard for four hours while two enemy task
   forces consisting of BB's and DD's passed us. The first
   signals were heard at an estimated range of 50 miles. The
   second task force zigged away from us suggesting that perhaps
   they picked us up with radar or DFed our SJ at long range.
   Several signals on this same frequency, pulse rate and pulse
   width were heard together indicating that more than one ship
   in each force was equipped with it.

- 39 -
Enclosure (..)

— page 158 —
U.S.S. SEALION - Report of THIRD War Patrol (cont'd.)
26 Nov. 1944 Report No. NINE

INTERCEPTION OF ENEMY R.A.R. TRANSMISSIONS

1. Ship U.S.S. SEALION (SS315)
2. Area covered this mission. 26 - 27 November attacking enemy
   task forces north of FORMOSA STRAIT.
3. Enemy radar was shipborne on BB's or DD's possibly both.

4. Intercept equipment - APR 1 and SPA 1.

5. (a) Frequency- 175 mgs.             Dial readings - None.
   (b) PRF - 500 cycles                How measured - S.M.
   (c) Pulse width - 7 microsec.      How measured - S.M.
   (d) Sketch pulse.
       [Image of a pulse waveform]

   (e) Lobe switching was not used.
   (f) Polarization unknown.
   (g) Sweep was slow and irregular.

6. Enemy radar is believed to be used for surface search.

7. This signal came from each of two task forces consisting of
   BB's and DD's. The signals was heard at an estimated range
   of 50 miles. It did not give any indication of picking us
   up until just before we dove at 9000 yards. In the same task
   forces the 105 mgs. radar was lobed and steadied on us at 9000
   yards. The 105 radar may have been the BB's surface search
   or the 175 mgs air search or one of them may have been on
   the DD's.

- 40 -
Enclosure (A)

— page 159 —
U.S.S. SE.LION - Report of THIRD War Patrol (cont'd.)

(V) REMARKS

1. It is noteworthy that no ship contacts were made in
the area along the CHIN. COAST. It is appreciated that
SE.LION was in the area for only ten days, however, I believe
whatever shipping does come down the coast travels on the
inside route well inside the 20 fathom curve.

The Jap Navy evidently uses a route Northeast of
FORMOSA, through the EAST CHIN. SEA on about track 220-040
to send task forces to and from the S.SEBO area. This track
is found to be about 30 miles due west of HOKA SHO. Our
three contacts with enemy task forces was in this general
vicinity. Enemy units encountered will probably be making
high speed.

2. SE.LION has carried Mark 18 torpedoes on last three
patrols. The shipboard maintenance (ie, routine) and
charging has been in accordance with the directives of the
Mk. 18 Board of Subiac and followed closely the procedures
outlined in the restricted pamphlet entitled "Maintenance
Instructions for Mark 18 Torpedoes Carried by Submarines on
War Patrol". The battery explosion which occurred on board
was caused by improper ventilation of the torpedo before
energizing the burner circuit. However, it is not noted
in the publication noted above or in in any other
published instructions at hand is a clear cut battery charging
ventilation doctrine outlined as for example, we have with
our main ships batteries. Ensign SCHULER'S suggested alter-
ation is a possible cure to the ventilation difficulty.

REPORT ON MK. 18 TORPEDOES

1. Twenty-two Mk. 18-1 torpedoes were carried. Fifteen
were fired with four hits. One torpedo was expended accident-
ly by firing it through the outer door of number 8 torpedo
tube during a chock of the firing circuits, and one torpedo
was expended to sea following a battery explosion. The
normal procedure of charging once every seven days was foll-
owed; no grounds developed and no casualties occured except
the battery explosion explained in detail below.

The battery of torpedo #56290 which was loaded in #5
tube exploded on energizing the hydrogen burning circuit
following a freshening charge. The record book of this
torpedo showed an initial charge on 25 October 1944 with a
test discharge followed by an eleven hour normal charge at
10 amps on 26 October 1944. The average gravity of the
pilot cells was 1263 at the completion of this charge.

- 41 - Enclosure (A)

— page 160 —
U.S.S. SEALLION - Report of THIRD War Patrol (cont'd.)
REPORT ON MK. 13 TORPEDOES

On 11 November 1944 when the average gravity dropped to 1245,
this torpedo was given a freshening charge for four hours at
seven amperes, which brought the gravity up to 1262. Seven
days later on 18 November following the normal routine the
battery was given another freshening charge for four hours at
seven amperes. The constant potential method of charging was
used at this time, and no record of gravities was kept. In
keeping with the usual practice, the number six handhole
plate was left off for twenty minutes after the charge, the
battery compartment then sealed, and the torpedo reloaded in
the tube. Immediately on energizing the hydrogen burning
circuit an explosion occurred. The torpedo was pulled part
way out of the tube, and it was found that two handhole
covers had been forced off their seat. Thick smoke was pour-
ing out, and there was a smell of burning rubber. Inasmuch
as we were submerged it soon became dangerous to leave the
torpedo in the room. A series of three minor explosions
occurred while the torpedo was out of the tube, and the battery
seemed to be burning fiercely. We therefore reloaded the
torpedo in the tube and fired it with 400 pound impulse after
waiting one and one half hours after the initial explosion.
It is impossible to estimate whether or not the torpedo ran.
There was no damage to the tube and no signs of acid in it.
Following this casualty a series of tests were conducted
to determine the percent of hydrogen in the battery compart-
ment following a freshening charge. It was found that with
two handhole plates removed during the charge, as is done for
tubes 1,2,3,4,7,8,9,10 and all torpedoes in the racks a
maximum of 2% hydrogen accumulated during a four hour charge
at 7 amps. With only one hand hole plate removed as is done
with tubes 5 and 6, the hydrogen content always reached 4%
and sometimes exceeded 5% during a four hour charge. In
twenty minutes natural ventilation after a charge; with two
plates off the hydrogen dropped to 1% and with one plate off
as was the case with the torpedo that exploded, it dropped
to 3%. As a major result of these findings all torpedoes were
force ventilated with 225 pound air after a charge until the
percentage of hydrogen was between 1 and 2. This ventilation
was conducted with the supply coming in the tail of the
torpedo and the exhaust going out number six handhole.
Following this, for the torpedoes in the tube, the battery
compartments were sealed, the torpedo loaded, and then given
a regular three minute forced ventilation. Ten minutes after
energizing the air, the hydrogen burning circuit was energized.
It is believed that the above procedure will prevent such a
casualty from reoccurring. The only objection to it is the
excessive use of air while submerged.

- 42 - Enclosure (A)

— page 161 —
U.S.S. SEALION - Report of THIRD War Patrol (cont'd.)

VENTILATION OF MK. 18 TORPEDOES

2. The electrical officer, Ensign F.G. SCHULER, USN., has
suggested a plan to ventilate the battery space during all
charging operations. It is included herewith as a recommended
alteration which it is believed can be accomplished by the
forces afloat.

(a) It has been found by a series of careful tests during
several charge of these batteries that it is impossible to
determine with the apparatus on board, the exact percentage
of hydrogen present in the battery space. On six different
test during charges the hydrogen detector needle went off
scale - indicating hydrogen in excess of 5%.

(b) Normal practice, with torpedoes in number 5 and 6 tubes
with the racks full, is to withdraw these torpedoes from tubes
#5 and #6 only enough to permit removal of number 6 handhole
plate - it is difficult if not impractical to withdraw them
further to remove the #5 handhole plate under those conditions.
Thus ventilation to these torpedoes during charge is
even less than to the torpedoes in other tubes. Hydrogen
pockets are here likely to form.

(c) To remove the dangerous high hydrogen percentage air
from the battery during charge the following system - adapted
from the method used to ventilate the ships main battery, is
suggested:

1. Mount a blower on the overhead of the torpedo room
halfway between the torpedo breech doors and the number 6 hand
hole plate of the torpedoes in the racks. A portable blower
of the type supplied submarines would be suitable. Fit a
plate over the suction side of this blower with four suction
hose nipples set into it - this will serve as a manifold.

2. Lead flexible suction hoses from this mani-
fold to the number 6 handhole plate of the torpedoes. This
hose should be similar to the type used on vacuum cleaners -
domestic or commercial. The domestic type consists of a non-
collapsible tube, approximately 1½" diameter with an outside
layer of woven fabric covering a steel coil spring imbedded
in rubber. At each end of the hose is a soft rubber sleeve,
which fits tightly around one of the nipples on the blower
manifold (the suction end) going to the torpedo under charge.

3. Rig in the battery space of each MK 18 torpedo a vent-
ilation duct made of the same type hose. However, make this
a fixed duct.

- 43 - Enclosure (A)

— page 162 —
U.S.S. SEALION - Report of THIRD War Patrol (cont'd.)
REPORT ON MK. 18 TORPEDOES

Rigidly clamp the terminus of this duct in the forward end of
the battery space, with its opening a few inches from the top
of the casing. Load the duct down alongside the battery and
aft to the end of the space. The after end should overlap the
battery by about one foot and have loosely between the after
end of the battery and the bulkhead. To take a suction from
the battery space, the blower suction hose is coupled by the
soft rubber nipples to the torpedo duct. This lead comes out
No. 6 handhole plate.

4. With this method of ventilation only one handhole
plate must be removed. The gas is exhausted from the forward
end of the battery compartment through the hose - fresh air
being drawn through the same handhole plate.

5. A sketch of the proposed system follows to show the
features of the system in detail.

- 44 -
Enclosure (A)

— page 163 —
PORTABLE HOSE
HANDHOLE
BATTERIES
TORPEDO IN RACK

TORPEDO IN TUBE

PORTABLE HOSE
HANDHOLE
FORWARD VIEW

— page 164 —
NOTE #1. PLATE TO BE FITTED OVERINTAKE OF PORTABLE BLOWER. (DIEHL)
NOTE #2. FOUR NIPPLES FITTED INTO PLATE WHICH FIT SNUGLY INSIDE HOSE SLEEVES.
NOTE #3. CLAMPS REQUIRED TO HOLD HOSE ON.
NOTE #4. COVERS TO BE SLID OVER NIPPLES WHEN PARTICULAR OUTLET IS NOT IN USE.
NOTE #5. COVERS TO BE SECURED TO PLATE WITH A CHAIN.

NOTE# 1.
NOTE# 2.
NOTE# 3.
NOTE# 5.
NOTE# 4.
NOTE# 1.
NOTE# 2.

— page 165 —
SUBMARINE SQUADRON TEN
                                                                Care of Fleet Post Office,
                                                                San Francisco, California,
                                                                6 December 1944.

FC5-10/A16-3
Serial 0262
CONFIDENTIAL

FIRST ENDORSEMENT to
CO SEALION ltr. SS315/A16-3
serial 015-44 of 12-3-44.

From: The 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, U. S. Pacific Fleet.

Subject: U.S.S. SEALION - Report of War Patrol No. Three.

1. The western portion of the East China Sea between
Shanghai and Formosa was the scene of SEALION'S third
patrol. Twelve days were spent in the area out of a total of thirty-two on
patrol.

2. Torpedo Attacks:

Nos. 1 and 2 - Extraordinary atmospheric conditions
combined with unusually large targets to give SEALION radar contact
at a range of 44,000 yards, just after midnight on 21 November 1944,
in a position in Formosa Strait, about 40 miles north-northwest of
Huki Kaku. The formation consisted of a column of four ships, con-
sisting of a heavy cruiser, two battleships, and another heavy
cruiser in that order. Destroyers were disposed around the first
battleship, one to port and two to starboard, all at a distance of
about 1,800 yards. In order to retain maneuverability and clarity
of vision, the commanding officer elected to attack on the surface,
a most unusual decision in the case of heavy fleet units. After
some two hours of tracking, SEALION reached the optimum attack
position, ahead of and to port of the target group and thereupon
slowed to the steerageway required to keep her head directly at the
stern (even as he passed a scant 1,500 yards from her. When the
track angle on the second ship in column (the first of the two
battleships) reached 90°P, she fired the bow tubes with 346° gyros
at a range of 3,000 yards. She then turned and brought the stern
tubes to bear on the second battleship, firing on a 130° port track
with 184° gyros at a range of 3,600 yards with tubes seven, nine
and ten, number eight being out of commission. SEALION'S audacity
was rewarded with three hits in the first target, one hit in the
second, and confusion in the enemy task force to such extent that
the escorts converged on the far flank.

Upon retiring and completing a reload, SEALION took
up pursuit but before she was able to attack again, the first battle-
ship exploded - the submariner's dream come true - and was neither
seen nor picked up on the radar again.

- 1 -

— page 166 —
SUBMARINE SQUADRON TEN

FC5-10/A16-3                                Care of Fleet Post Office,
Serial 0262                                 San Francisco, California,
                                            6 December 1944.
CONFIDENTIAL

FIRST INDORSEMENT to
CO SEALLION ltr. SS315/A16-3
serial 015-44 of 12-3-44.

Subject: U.S.S. SEALLION - Report of War Patrol No. Three.

          No. 3. In the early evening of 26 November 1944,
SEALLION's radar outdid its previous phenomenal performance and
picked up an enemy task force consisting of one battleship and three
destroyers, at a range of about 71,000 yards, once more in Formosa
Strait. SEALLION commenced tracking, using estimated ranges, but
the freakish atmospheric conditions blocked the radar screen com-
pletely, between the ranges of 50,000 and 19,000 yards. This
served to defeat her attack, for by the time the 19,000-yard con-
tact was made she was well out on the starboard flank in bright
moonlight. Visibility prohibited a surface attack and the target's
speed of 21 knots precluded closing the track sufficiently.
SEALLION, however, took the best shot which was offered her, sub-
merged at a range of 8,000 yards from the leading destroyer and
fired the bow tubes at a range of 4,300 yards with gyros 345° on a
90° starboard track. No hits resulted and SEALLION was held on the
bottom in 275 feet of water for about two hours.

          3. Gun Attack No. 1 - While enroute to station on the
surface, SEALLION sighted two armed trawlers in the early afternoon
of 11 November 1944, in a position about 300 miles east of the Nanpo
Shoto Islands. She immediately closed and engaged the nearest one
with all guns and the enemy returned the fire with a 40mm mounted
in the bow. Force three seas made SEALLION a precarious gun platform
and location of the gun forward hampered her maneuver so that as
the second trawler moved in to join the action, she prudently with-
drew. No damage to the enemy vessels was observed and SEALLION
sustained only superficial damage to her superstructure.

          4. This patrol is unique in the number of contacts made
with enemy capital ships. It is particularly significant to note
that the three torpedoes which sank one battleship were set for a
depth of eight feet.

          5. SEALLION is in good material condition except for the
damage done to tube #8, when a torpedo was accidentally fired through
the closed outer door. She will be given voyage repairs by the
U.S.S. SPERRY and the new commanding officer will receive his train-
ing at Guam.

                                            - 2 -

— page 167 —
SUBMARINE SQUADRON TEN

FC5-10/A16-3
Serial 0262

CONFIDENTIAL

FIRST ENDORSEMENT to
CO SALLION ltr SS315/A16-3
serial 015-44 of 12-3-44.

Subject: U.S.S. SALLION - Report of War Patrol No. Three.

6. It is unfortunate that a battery explosion caused the
loss of a sound torpedo. While the recommendation for exhaust
ventilation is considered sound, the results of the practice of
using forced ventilation each time before hydrogen eliminators are
turned on have proved entirely satisfactory.

7. Torpedo attacks 1 and 2 should take their place in
submarine history among the outstanding performances of the war.
Few others have been so skillfully, boldly and successfully deliver-
ed, and the commanding officer is deserving of the highest praise.
To him and to the officers and men of SALLION, the Squadron
Commander extends the heartiest congratulations on a magnificent
accomplishment.

8. It is recommended that the SALLION be given credit
for having inflicted the following damage upon the enemy:

SUNK
1 BB (class unknown) (LU) 30,000 tons

DAMAGED
1 BB (class unknown) (LU) 30,000 tons

[SIGNATURE: G. L. Russell]
G. L. RUSSELL

— page 168 —
[HANDWRITTEN: hch]
[HANDWRITTEN: Sory]

SUBMARINE FORCE, PACIFIC FLEET

FF12-10/A16-3(15)
Serial 02880
[STAMP: 17 DEC 1944]
CONFIDENTIAL

SECOND ENDORSEMENT to
SEALION Report of
Third War Patrol.

COMSUBSPAC PATROL REPORT NO. 607.
U.S.S. SEALION - THIRD 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. SEALION (SS315) - Report of Third War Patrol.
(31 October to 3 December 1944).

1. The third war patrol of the SEALION was conducted in
the western part of the East China Sea between the East China Sea and
the northern tip of Formosa.

2. During this expertly planned and executed patrol the
SEALION had the good fortune to make two contacts with enemy major
combatant ship task forces. The first contact was estimated to con-
sist of two BB's, two CL's or CA's, and three DD's. With a display
of smart tactics and tenacious fighting spirit, characteristic of the
SEALION, the contact was developed into two attacks resulting in
three torpedo hits in one BB and one in the other. In the subsequent
chase for the kill, one BB was seen to slow, then blow up. Heavy
head seas prevented overhaul of the other BB. Five days later another
BB, escorted by two DD, was contacted but despite determined pursuit
could not be closed for a short range attack. A long range attack res-
ulted in no hits. A third contact made by radar only, and possibly
also consisting of men-of-war, could not be closed for attack. While
enroute to station, the SEALION engaged two armed trawlers with her
guns. Rough seas along with the two-against-one handicap, caused the
SEALION to prudently break off the action.

3. Award of the Submarine Combat Insignia for this patrol
is authorized.

4. The Commander Submarine Force, Pacific Fleet, congratu-
lates the commanding officer, officers, and crew of the SEALION for
this history making patrol. It is hoped that prisoners of war or
captured documents may soon be obtained to fix the identity of these
major combatant ships struck by the SEALION. There is no doubt that
they were either battleships or heavy cruisers. Sinking one and dam-
aging another is a feat which deserves the praise of the nation. In
three patrols this fighting submarine has the outstanding record of
having sunk eleven ships, including one BB and one DD, for 101,400
tons, and damaged a battleship for 30,000 tons. The SEALION is cred-
ited with having inflicted the following damage upon the enemy during
this patrol:

- 1 -

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

— page 169 —
SUBMARINE FORCE, PACIFIC FLEET
hch
FF12-10/A16-3(15)
Serial 02880
Care of Fleet Post Office,
San Francisco, California,
17 December 1944.

CONFIDENTIAL

SECOND ENDORSEMENT to
SLALION Report of
Third War Patrol.
NOTE: THIS REPORT WILL BE
DESTROYED PRIOR TO
ENTERING PATROL AREA.

COMSUBSPAC PATROL REPORT NO. 607.
U.S.S. SEALION - THIRD WAR PATROL.

Subject: U.S.S. SEALION (SS315) - Report of Third War Patrol.
(31 October to 3 December 1944).

S U N K

1 - BB (EU) - 30,000 tons (Attack No. 1)

D A M A G E D

1 - BB (EU) - 30,000 tons (Attack No. 2)

TOTAL SUNK AND DAMAGED 60,000 tons

DISTRIBUTION:
(Complete Reports)
Cominch (7) C. A. LOCKWOOD, Jr.
CNO (5)
Cincpac (6)
Intel.Cen.Pac.Ocean Areas (1)
Comservpac (1)
Cinclant (1)
Comsubslant (8)
S/M School, NL (2)
CO, S/M Base, PH (1)
Comsopac (2)
Comsowespac (1)
CTG 71.9 (2)
Comnorpac (1)
Comsubspac (40)
SUBAD, MI (2)
ComsubspacSubordcom (3)
All Squadron and Division
Commanders, Pacific (2)
Substrainpac (1)
All Submarines, Pacific (2)
ComsubSowespac (2)

[SIGNATURE: E. K. Hynes Ind]
E. L. HYNES, 2nd,
Flag Secretary.

— page 170 —
U.S.S. SEALION (SS315)
Care of Fleet Post Office,
San Francisco, California,
4 DECEMBER 1944.

SS315/S65
SERIAL (48-44)
CONFIDENTIAL

From: The Commanding Officer.
To: The Commander Submarine Force, Pacific Fleet.
Subject: Memorandum report of Wire and Film Recordings
taken during 3rd War Patrol of USS SEALION.

1. The Sealion on her 3rd war patrol carried aboard
a wire recorder Serial No. 390 and a film recorder Serial No. 44300751.
These instruments were placed under the supervision of Lt.(J.G.)
F.S. HOLT U.S.N.R. whose duties were to make recordings during attacks
of voice communications, explosions, (torpedoes, depth charges) and any
enemy anti-submarine measures encountered.

2. Parts of the following attacks were recorded as
described below.

A. Attack Number 1. Film boxes Nos.2,3,4,5 and 6.
At about 0020 on the morning of 21 November, 1944, a Radar contact was
made at a range of 44,000 yards. This contact developed into 7 ships.
2BB's, 2CA's, and 3DD's.

(1) The USS SEALION obtained a favorable position and
started in for the attack. At 0256, six tubes forward were fired at th
first BB and at 0259 three tubes aft were fired at the second BB.
Three hits were obtained on the first BB and one hit on the second BB.
Several large explosions were heard and seen. Numerous depth charges
were heard at this time. The target group increased speed and commence
zig-zagging. Then began a chase in which the range opened slowly, unti
one of the BB's began to fall back screened by three destroyers. While
the USS SEALION was in the process of attacking this cripple a violent
explosion was seen and heard and the target sank. The Sealion then
started another chase after the 2CA's and the other BB, but was unabl
to overhaul them due to their greater speed and the heavy seas.

-1-
ENCLOSURE (A)

— page 172 —
CONFIDENTIAL
U.S.S. SEALION - Report of THIRD War Patrol (cont'd.)

18 Nov. 1944 Report No. THREE

INTERCEPTION OF ENEMY RADAR TRANSMISSIONS

1. Ship U.S.S. SEALION (SS315)
2. Area covered this mission. Patrol thirty miles off YUSHAN
   LIGHTHO, CHUSAN ARCHIPELAGO CHINA 18 - 19 November 1944.
3. Enemy Radar was believed to be land based.

4. Intercept equipment - APR 1 and SPA 1.

5. (a) Frequency - 76 mgs. Dial readings - None
   (b) PRF - 500 cycles How measured - SPA
   (c) Pulse Width - 27 microsec. How measured - SPA
   (d) Sketch pulse.
   (e) Lobe switching was not used.
   (f) Polarization - unknown.
   (g) Sweep rate - not sweeping.

6. (a) Radar was probably used for air search.

7. Radar did not seem to sweep. The signal was only moderately
   loud at thirty miles.

- 34 -

Enclosure (A)

— page 173 —
[HANDWRITTEN: 13]
[HANDWRITTEN: hch 13078]

COMMANDER SUBMARINE FORCE
UNITED STATES PACIFIC FLEET
FF12-10/A7-1/S68/365
Serial 02814
[STAMP: CONFIDENTIAL (crossed out)]
Care of Fleet Post Office,
San Francisco, California.

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

Subject: Wire and Film Recordings taken during the Third
War Patrol of the U.S.S. SEALION.

Reference: (a) ComSubPac Conf. Ltr. FF12-10/S68/H2-10 Serial
02178 of 5 October 1944.

Enclosure: (A) Copy of CO USS SEALION Conf. Ltr. SS315/S65
Serial (43-44) of 4 December 1944.

1. Enclosure (A) is forwarded herewith. The records
referred to therein are being delivered by Commander Eli Reich,
U.S. Navy, who was commanding officer of the SEALION at the time
the recordings were made.

2. The records are considered to have great value
both from the viewpoint of training and publicity. Current
publicity policy does not permit their release at present, but
it is felt that the records should be preserved for possible
release in the future.

3. Similar recordings made during the second war
patrol of the U.S.S. SEALION were forwarded by reference (a).
Action similar to that recommended in paragraph 2 of reference
(a) appears to be desirable in the case of the recordings being
delivered by Commander Reich.

C. A. LOCKWOOD, Jr.

Copy to:
CincPac (plus copy of Enc. (A)),
ComSubTrainPac,
Underwater Sound Lab., Fort Trumbull,
Public Relations Officer, Staff Cincpac,
BuPers Training Aids,
ComSubLant,
Director of Public Relations, Off. of Sec.Nav.
[HANDWRITTEN: # 34409]
[HANDWRITTEN: Jacket No 1 (585)]

— page 174 —
F12-10/A16-3(13)
[UNCLEAR: COM SUBMARINE FORCE, PACIFIC FLEET]
Serial 0119
[STAMP: DECLASSIFIED]
[HANDWRITTEN: OPNAV INST 5500.3]
[HANDWRITTEN: BY 00-09391C DATE 8/16/87]

Care of Fleet Post Office,
San Francisco, California.
7 February 1946.

To : Commander Submarine Force, Pacific Fleet.
Via : The Chief of Naval Operations.
Via : The Commander in Chief, U. S. Pacific Fleet.

Subject: U.S.S. STALLION (SS315) - Report of Third War Patrol.

Reference: (a) ComSubPac second end. F12-10/A16-3(13) serial 0080
of 17 December 1944.

1. On 21 November 1944 U.S.S. STALLION made radar contact on an
enemy formation of two battleships, two heavy cruisers and at least three
destroyers. In the ensuing torpedo action a Japanese BB was sunk and
another BB (or CA) was badly damaged. Nine torpedoes were fired with
three hits on one and one in the BB damaged.

2. Reliable intelligence, subsequently received, states that no
battleships were sunk or damaged on this occasion. However, the HOYO of
29,300 tons and the DD 97 (UNSHIO) of 1,650 tons were sunk. It is evident that the BB was
sunk by one of the five torpedoes which missed the principal targets.

3. Accordingly, correct paragraph 4 of reference (a) to read:

SUNK
1 - BB (HOYO BB-1) 29,300 tons
1 - DD (UNSHIO DD 97) 1,650 tons
TOTAL SUNK 30,950 tons

DAMAGED
1 - BB 30,000 tons
TOTAL DAMAGED 30,000 tons

TOTAL SUNK & DAMAGED 60,950 tons

[HANDWRITTEN: RECEIVED SO FILES]
[HANDWRITTEN: 25 FEB 1946]
[HANDWRITTEN: 196845]

DISTRIBUTION:
CNO (12)
CinCpac (2)
CinCPOA (1)
ComServPac (1)
CinCLant (1)
ComSubLant (1)
S/P School, N.L. (6)
CO, S/P Base, P.H. (2)
ComorPac (1)
ComSubPac (1)
SUBAD, N.I. (2)
All Squadron and Div. (40)
Comdrs. Pacific (2)

[SIGNATURE: Frank T. Watkins]
Frank T. Watkins,
Chief of Staff.

ComSubCorTrnPr (5)
All Submarines, Pacific (1)
Comdr. N. I. Mich, USN (1)

[SIGNATURE: W. S. Gieloff]
W. S. Gieloff,
Commander, USN.
Flag Secretary.

— page 175 —
Information obtained from Log of USS SEALION (SS-315) for 21 November 1944

Commanding Officer: Commander Eli Thomas Reich, USN
Prospective Commanding Officer: LCDR Charles F. Putman, USN
Executive Officer: Lt. James Smith Bryant, USN
Chief Engineer: LTJG Harold H. Hagen, USN
Radar Officer: LTJG Daniel P. Brooks, USN
Assistant Radar Officer: LTJG Frederick S. Holt, USN
Communications Officer: LTJG Joseph C. Bates, USN
1st Lieutenant: Lt. Clayton E. Braloff, USN
Watch Officer: LTJG M. A. Scheyler, USN
                   LTJG F. S. Holt, USN
                   LTJG D. P. Brooks, USN

There was no Quartermaster listed
There was no Boatswain listed
There was no Sound Operator listed

— page 176 —
SS315/.16-3/TFO
Serial ( 010-45 )

C-O-N-F-I-D-E-N-T-I-A-L
[STAMP: DECLASSIFIED -][HANDWRITTEN: 1]

From: The Commanding Officer.
To : The Commander-in-Chief, United States Fleet.
Via : (1) The Commander Submarine Division TWO HUNDRED SIXTY ONE.
(2) The Commander Submarine Squadron TWENTY SIX.
(3) The Commander Submarines, SEVENTH Fleet.
(4) The Commander-in-Chief, United States Pacific Fleet.

Subject: U.S.S. SEALLION - Report of War Patrol Number FOUR.

Enclosures: (A) Subject Report.
(B) Track Chart for ComSubs7thFlt.

1. Enclosure (A), covering the FOURTH War Patrol of
this vessel, conducted in the SOUTH CHINA SEA, during the period
14 December 1944 to 24 January 1945, is forwarded herewith.

U.S.S. SEALLION (SS315)

c/o Fleet Post Office,
San Francisco, Calif.

24 January 1945
[STAMP: DECLASSIFIED ART. 0445, OPNAVINST 5510.1C]
[HANDWRITTEN: BY: 0/096K DATE 9/5/72]

C. F. PUTNAM.

[HANDWRITTEN: FILMED]
[HANDWRITTEN: 112560]

— page 177 —
U.S.S. SEALION - Report of FOURTH War Patrol.

(A) PROLOGUE:

U.S.S. SEALION arrived GUAM for voyage repairs and torpedo
reload on 8 December 1944, upon completion of THIRD War Patrol.
Voyage repairs completed on 7 December 1944. The following major
work items were accomplished by the U.S.S. SPERRY and SubDiv ONE
HUNDRED-ONE Relief Crew:

1. Outer door on #8 torpedo tube was repaired and tube put
   back in commission.
2. Renewed gasket on #6 torpedo tube outer door.

On 4 December 1944 Lieutenant Commander Charles F. PUTT, USN.
USN. relieved Commander Eli T. REICH, USN. as commanding officer.
On 7 December 1944 Lieutenant (junior grade) Wayne E. BROWNELL,
E-V(S), USN. reported aboard for duty. Post repair trials and
training exercises were held from 7 December to 12 December 1944.
SEALION ready for sea 14 December, carrying 16 Mk. 18-1 torpedoes
forward, and 8 Mk. 23 torpedoes aft.

(B) NARRATIVE:

14 December 1944

1015 (I) Departed GUAM for FOURTH War Patrol pursuant to ComSubPac'
          OpOrd 1G-44.

15 December 1944

          Enroute to patrol area. Contacted numerous friendly
          planes by sight and SD.

16 December - 17 December 1944

          Enroute patrol area.

18 December 1944

0250 (I) Exchanged recognition signals and calls with U.S.S.
          PINTADO on SJ.
1222 (I) Sighted plane, unidentified, submerged. (aircraft contact
          #1).
1317 (I) Surfaced.
2005 (I) Radar contact on BALINTANG ISLAND, distance 70,000 yards.
2330 (I) Transitted BALINTANG CHANNEL. Seas have increased to
          about force 6 from northeast; sky is dark and overcast.

- 1 -
Enclosure (A)

— page 178 —
U.S.S. SEALION - Report of FOURTH War Patrol (cont'd.)

19 December 1944

0230 (I) Exchanged recognition signals and calls with U.S.S.
          SEA ROBIN on SJ.
0705 (I) Submerged. Heavy seas are making depth control difficult,
          running at 80 turns to maintain depth most of the time.
1000 (I) Set ships clocks back one (1) hour to (-8) HOW time.
1800 (H) Surfaced. Seas still force 6, heavy overcast and occasion-
          al rain squalls.

20 December 1944

0400 (H) Passed to command of Commander Task Force 71.
0515 (H) Received patrol instruction from C.T.F. 71.
1400 (H) Entered assigned area. Patrolling on surface. Sky over-
          cast - seas force six (6) from the northeast.
1745 (H) High periscope picked up masts of ship bearing 237° T.
          (Ship contact #1) Closed to identify.
1751 (H) Identified ship as large freighter similar to [HANDWRITTEN: MIKIY MARU]
          [HANDWRITTEN: AFRIKA MARU]
          MIKIY MARU class (ONI 208-J page 99) with two escorts. Convoy on
          easterly courses. Stationed radar tracking party.
1753 (H) Maintained range at 19,000 yards to keep out of target's
          visual range during the hour of daylight remaining.
          Tracking with radar ranges and periscope bearings.
1908 (H) Battle stations night attack.
1910 (H) Target group consists of one large AK with a DE escort on
          his starboard side and an SC escort on his port side -
          the near side, base course 080, speed 6½ kts. when headin
          into the sea on his northerly legs and 8 kts. when on
          southerly legs. I elected to attack from the north so
          we could shoot with a following sea. The night is dark
          and stormy.
1911 (H) Ahead of target on his northern leg - headed in. Range
          14,700 yards. Kept bow pointed at near escort.
1935 (H) Slowed to 1/3 speed and let near escort pass ahead at 1600
          yards. Target fairly clear now and looked much like AFRIKA
          MARU class but binocular formula showed he could be even
          bigger. He is heavily loaded.
1937 (H) Commenced firing 6 tubes forward. Range - 3000 yards -
          69°-73° port track - gyros 15°-21°L - depth 8 feet. One
          torpedo broached.

- 2 -
Enclosure (A)

— page 179 —
U.S.S. SEALION - Report of FOURTH War Patrol (cont'd.)

20 December 1944
1938 (H) Swung right and cleared area to await results. Passed
roadside to escort at 1400 yards.
1940 (H) First of four timed hits heard and observed.
1944 (H) Indiscriminate depth charging. Escorts began signalling
and milling around target who was still floating and not
burning.
1952 (H) Feeling target would sink in these heavy seas withdrew to
10,000 yards and commenced reload forward.
2020 (H) Target pip had grown smaller but was still on scope and
being tracked at 3 knots. Escorts were periodically signal-
ling and moving close to target.
2224 (H) Target now stopped. Commenced to close to see just what
was going on.
2230 - 2330 (H)
We made three false starts after target, being driven away
each time by near escort who closed the range rapidly to
about 4000 yards. This later proved to be mere coincidence
as I don't believe we were detected at any time. Since
target was merely drifting at about ½ knot and we were
tracking escorts to see what was up, it was determined
by plot that they had cooked up a screening plan which
was very nearly effective - since they kept the SEALION
away from the target for three hours. The target was
drifting on a westerly heading toward 180° T, and an
escort was patrolling at 8 knots a 3000 yard diameter
circle off either beam of the target.

2330 - 2400 (H)
Tracking near escort and jockeying for position.

21 December 1944
0000 - 0014 (H)
Still playing hide and seek.
0022 (H) Finally caught escort on far side of his circle so made
ready 3 bow tubes and closed in. Put target set up on
T.D.C. Target now clearly visible at 4000 yards listed
to starboard and down by the stern.

- 3 -
Enclosure (..)

— page 180 —
U.S.S. SEALION - Report of FOURTH War Patrol (cont'd.)

21 December 1944

0032 (H) Commenced firing 3 bow tubes - range 2500 yards - gyros
        90° - 7° R - track 59° - 57° starboard - target speed ½
        knot - depth set 10 feet.
0033 (H) Pulled out to the north to observe results - hoping this
        would be the end of this tough ship.
0035 (H) The first of two timed hits caused terrific explosion, and
        sheet of flame and black smoke obscured target.
0040 (H) Escorts dropped depth charges in earnest.
0052 (H) Target disappeared from sight and radar screen at last at
        6000 yards. Lat. 17° 48' N., Long. 114° 09' E. Secured
        from battle stations. Seas too rough for a depth setting
        of less than 8 feet so gave up any ideas of attacking in.
        Tracked large escort out to 19,000 yards. Too rough to
        attempt reload of lower tubes.
0626 (H) Dove for submerged patrol.
0930 (H) Heard a series of distant explosions.
1050 (H) Heard another series of explosions. Sounds like someone
        is getting worked over.
1825 (H) Surfaced. Patrolling HAINAN - MANILA traffic route north
        of MACCLESFIELD BANK.

22 December 1944

0600 (H) In position of first attack, searching area for possible
        survivors or wreckage.
0700 (H) Patrolling on surface north of MACCLESFIELD BANK across
        HAINAN - MANILA Route.
1632 (H) Sighted bale of rubber or cork. Position: Lat. 17-31 N.
        Long. 114-19.5 E.
1651 (H) Sighted another similar bale.

23 December 1944

        Patrolling north of MACCLESFIELD BANK along HAINAN - MANIL
        route.
0545 (H) Sighted small patrol boat 300° T, 8000 yards, avoided.
        (Ship contact #2).
0642 (H) Submerged for trim.

- 4 -
                                                                Enclosure (A)

— page 181 —
U.S.S. SEALLION - Report of FOURTH War Patrol (cont'd.)

23 December 1944
0702 (H) Surfaced.
1037 (H) Sighted plane, Pete, submerged. Decided to spend the rest
of the day submerged and repair #2 main engine. (Aircraft
contact #2).
1753 (H) Surfaced.

24 December 1944
Patrolling north of MACCLESFIELD BANK, along HAINAN -
MANILA route.
0936 (H) Sighted plane, Kate, submerged. (Aircraft contact #3).
1117 (H) Sighted Kate circling our diving position, decided to
spend the rest of the day submerged.
1759 (H) Surfaced. Patrolling to the south-west having decided to
clear our present area as they seem to have us spotted.

25 December 1944
Patrolling between HAINAN ISLAND and PARACEL ISLAND and
reefs.
0632 (H) Submerged.
1500 (H) Held Christmas services in the crew's mess, the Commanding
Officer officiating.
1833 (H) Surfaced. Continued patrolling at one engine speed south
east of HAINAN ISLAND.

26 December 1944
Patrolling south-east of HAINAN on TOURANE - HONGKONG
line at one engine speed.
0642 (H) Submerged.
1832 (H) Surfaced. Patrolling south-east of HAINAN, on TOURANE -
HONGKONG line.
2310 (H) Flash of SJ interference bearing 028° T not picked up
again.

27 December 1944
Patrolling to the northeast between HAINAN and PARACEL
ISLAND.
- 5 - Enclosure (A)

— page 182 —
U.S.S. SEALION - Report of FOURTH War Patrol (cont'd.)

27 December 1944
0645 (H) Submerged.
1832 (H) Surfaced.
1928 (H) Radar contact bearing 275° T, range 6700 yards.
1932 (H) Lost contact.
1935 (H) Unable to regain contact, stopped and listened carefully.
           All clear on JK. Suspect pip was a phoney.
2216 (H) Picked up HAINAN ISLAND bearing 327° T, range 100,000
           yards on the SJ. Closed to fix our position. No star
           fix in three days.
2300 (H) Received orders to take station on patrol line off
           MINDORO.
2330 (H) Set course 100° T to head for new patrol station at 3
           engine speed. Heading into rough seas.

28 December 1944
           Enroute new patrol station at three engine speed. Seas
           are state 6; very wet on the bridge.
1037 (H) Sighted two (2) aircraft; submerged. One plane identified
           as "Rufe", the other unidentified. (Aircraft contact #4).
1250 (H) Surfaced.
1630 (H) Sighted floating corpse, unable to identify with high seas
           running. Position: Lat. 17-08 N., Long. 113-52 E.

29 December 1944
           Enroute new patrol station. Seas and wind abating. Sky
           still overcast.
1055 (H) Sighted plane, Nell, submerged. (Aircraft contact #5).
1138 (H) Surfaced.
1530 (H) Arrived at new patrol station. Slowed to one engine
           speed as per instructions, and commenced zig-zagging
           using the course clock. CALLED designated O.T.C. of
           patrol line.
1730 (H) Sighted possible periscope two points on the starboard
           bow. Went ahead flank and headed at it. Periscope not
           seen again. Resumed normal patrolling.
           - 6 -
           Enclosure (A.)

— page 183 —
U.S.S. SEALLION - Report of FOURTH War Patrol (cont'd.)

30 December 1944

Patrolling on station at one engine speed. Using the arm
course clock. Bright moonlight with occasional rain
squalls.
0618 (H) Submerged for trim and B.T. Card.
0723 (H) Surfaced, and continued surface patrolling.
1522 (H) Sighted plane, unidentified, submerged. (Aircraft contact
#6).
1610 (H) Surfaced.

31 December 1944

Patrolling on station at one engine speed, using the arm
course clock. Bright moonlight with occasional rain
squalls.
1415 (H) Sighted plane, "Mavis", submerged. (Aircraft contact #7)
1503 (H) Surfaced and continued patrolling on surface at one engine
speed.
1638 (H) Sighted aircraft, unidentified, submerged. (Aircraft
contact #8).
1810 (H) Surfaced and continued patrolling on surface at one engine
speed.
2315 (H) Received orders to proceed to new area. SEALLION and CAIMAN
to operate as a coordinated attack group - CAIMAN O.T.C.
2344 (H) Set course for area at two engine speed.

1 January 1945

Patrolling at two engine speed proceeding to assigned area.
0930 (H) Received area patrol instructions from CAIMAN.
1600 (H) Arrived at assigned position. Commenced patrolling at
one engine speed.
2330 (H) Received orders changing SEALLION and CAIMAN to northern
half of area.
2345 (H) Set course for new area.

2 January 1945

Patrolling enroute to new area.
- 7 -
Enclosure (A)

— page 184 —
U.S.S. SILLION - Report of FOURTH War Patrol (cont'c.)

2 January 1945

0635 (H) Submerged for trim.

0712 (H) Surfaced.

0800 (H) Arrived assigned position - commenced patrolling at one
          engine speed. Seas in this area are heavy and skies
          overcast. No fix in two days.

0859 (H) Received contact report from DLEHNY reporting convoy
          which will cross southeastern tip of our area tonight.

0939 (H) Received instructions from C.T.F.N.

0948 (H) Set course at three engine speed for 2000 rendezvous with
          convoy consisting of one AP and two Destroyers. Sky is
          heavily overcast and seas rough. Visibility varies from
          3000 yards to 1000 yards. For the past few days we have
          had to operate the SJ radar 24 hours a day.

1237 (H) Radar contact 209° T, 16,000 yards - a good pip. Turned
          toward at four engine speed and commenced tracking.
          Visibility 4000 yards. We all felt very sheepish when
          contact behaved very much like a plane and soon was gone
          from the screen. (Aircraft contact #9). Continued toward
          rendezvous at three engine speed.

1320 (H) Radar contact 072° T, 7000 yards. We have been getting
          SJ interference on this bearing so assumed it was a
          friendly submarine.

1338 (H) Exchanged recognition signals and calls with C.T.F.N.

1445 (H) Aircraft contact on SJ 175° T, 17,000 yards. Visibility
          poor on that bearing so alerted lookouts. (Aircraft
          contact #10).

1450 (H) Visibility opened and sighted aircraft, "Travis", bearing
          150° T, submerged. (Aircraft contact #10) C.T.F.N. who
          was now to the south of us had submerged shortly before.

1602 (H) Surfaced. Continued toward rendezvous at three engine
          speed.

1900 (H) Arrived at convoy's 2000 position and commenced patrolling
          across track.

2020 (H) C.T.F.N reported radar contact.

          - 8 -

                                                            Enclosure (..)

— page 185 —
U.S.S. SEALION - Report of FOURTH War Patrol (cont'd.)

2 January 1945

2040 (H) Radar contact bearing 110° T, range 19,200 yards. (Ship
          contact #3). Stationed radar tracking party and went
          ahead on four engines. BLENNY had reported convoy on
          course 030° T, speed 11 knots.
2110 (H) CAIMAN reported he was attacking from port flank.
2120 (H) We have a perfect solution. Target on course 035° T
          making 12 knots - not zigging. The seas are still rough
          and it is raining quite hard, - visibility poor.
2140 (H) Radar contact on CAIMAN 010° T, range 3700 yards. Came
          left and pulled out to the north to keep clear of CAIMAN
          until he completes his attack. The moon was scheduled
          to make its appearance at 2130 but it is still dark and
          stormy - raining steadily.
2234 (H) Went to battle stations. We are up ahead of target
          group in good position - waiting for CAIMAN to complete
          attack.
2240 (H) Rain has stopped and sky is breaking up. Visibility is
          getting much too good. All three ships in target
          group are visible from bridge at 10,000 yards.
2314 (H) Received message from CAIMAN saying he did not attack
          and for SEALION to attack. We are down moon but
          visibility is excellent. Seas have abated somewhat.
          With improved visibility target group is now zigging
          between 000°, 035°, and 055° - 10 minute legs - making
          12 knots. The two destroyers are patrolling 2000 yards
          one either side of the target - a medium AP. Taking
          into consideration the visibility conditions and that
          we are carrying Mk. XVIII torpedoes forward and Mk. XXIII
          torpedoes aft I decided to go in and shoot the stern
          tubes at the near destroyer. Any position for a shot
          at the AP would put us too close to the flanking DD.

3 January 1945

0004 (H) Target group has just zigged toward us to his furthest
          left leg, so at
0008 (H) c/c to 140° and headed in. Made ready the stern tubes.
0015 (H) When range was 5200 yards slowed to 1/3 speed and changed
          course to 260° T to bring stern tubes to bear on near
          destroyer. It is bright as day now.

                                  - 9 -
                                                          Enclosure (A)

— page 186 —
U.S.S. SE LION - Report of FOURTH War Patrol (cont'd.)
3 January 1945

0016 (H) Commenced firing 4 tubes aft with .P in line with near
         DD. Torpedo run 4300 yards, tracks 68 to 70½ pert -
         gyros 209 - 204½, depth set 6 foot. I realized I
         misjudged the turn and turned to soon, but figured it
         was worth a try anyway.

0017 (H) All ahead full to clear scene of action.

0020 (H) Near destroyer turned on red truck light. It is believed
         the torpedoes ran under him at this time.

0022 (H) Heard 3 explosions 10 seconds apart - timed to be end of
         run explosions. Near destroyer turned toward apparent-
         ly running down torpedo tracks. Went at this time was
         6400 yards. Went ahead flank, blew safety and ran the
         low pressure blower. No time to squeeze 19½ knots
         out of the boat but the range was closing slowly.

0032 (H) Destroyer began dropping depth charges which shook the
         boat at 6000 yards.

0033 (H) Destroyer turned away and began dropping depth charges
         in earnest. At 8000 yards the charges could be felt
         on the bridge.

0044 (H) Slowed and c/c to 070° T. Commenced reload aft. Target
         group still tracked as before.

0102 (H) Reload completed but have lost contact with target
         group. Secured from battle stations.

0135 (H) Requested instructions from COMLIN.

0150 (H) Received message from COMLIN directing us to return to
         area which is now 55 miles away.

0155 (H) Set course for position in area at three on inc speed.

0210 (H) Navigator caught three elusive stars and got a fix - the
         first in 60 hours.

1447 (H) Commenced patrolling in area on surface at one on inc
         speed. Sighted aircraft 010° T, "Davis", (aircraft
         contact 11) submerged.

1600 (H) Surfaced. Continued surface patrol on one on inc.

- 10 -
Enclosure (L)

— page 187 —
U.S.S. SEALION - Report of FOURTH War Patrol (cont'd.)
4 January 1945
Patrolling on surface at one engine speed across INDO-
CHINA - PHILIPPINE traffic lanes.

0930 (H) Received new area instructions from CALMIN.
0942 (H) Sighted plane, "Betty", submerged. (Aircraft contact
#12)
1044 (H) Surfaced.
1343 (H) Sighted plane, submerged. (Aircraft contact #13) C.O.D.
was fairly certain it was a PBM. He was coming out of
the clouds ahead on a shallow dive to possibly identify
us. Since he dropped no bombs we are certain he was a
friend.
1454 (H) Surfaced.
1815 (H) Arrived at new patrol station and commenced patrolling
on a NE - SW line at one engine speed.
1930 (H) Received orders to take position on patrol line off
INDO-CHINA.
2000 (H) Set course for newly assigned station at two engine speed.
2009 (H) Received message from BREM that she was in our area and
that her SJ was out of commission. Relayed message to
CALMIN.

5 January 1945
Enroute new patrol station at two engine speed.

0343 (H) Exchanged recognition signals and calls with the CALMIN.
1800 (H) Arrived at assigned position on patrol line; commenced
patrolling at one engine speed along a NE - SW line.

6 January 1945
Patrolling on assigned station.

0640 (H) Submerged.
1848 (H) Surfaced.

7 January 1945
Patrolling on assigned station.
- 11 -
Enclosure (A)

— page 188 —
U.S.S. SEALLION - Report of FOURTH War Patrol (cont'd.)
7 January 1942
0643 (H) Submerged.
1851 (H) Surfaced.

8 January 1945
Patrolling on assigned station.
0235 (H) Sighted possible mine broad on the starboard beam,
          distance 100 yards. Position: Lat. 10-46 N., Long.
          104-09 E. Turned around to investigate but could not
          find it again in the dark.
0650 (H) Sighted oil drum on starboard beam, about in same spot
          as "mine" sighted at 0235. Sank the oil drum with rifle
          fire to avoid possibility of future scares.
0656 (H) Submerged.
1846 (H) Surfaced.

9 January 1945
Patrolling on assigned station.
0645 (H) Submerged.
1849 (H) Surfaced.
1915 (H) Received orders to proceed at best speed to cover SAIGON -
          SINGAPORE traffic lanes. Set course and proceeded at
          four engine speed.
2212 (H) Received orders from PERCH. CO PERCH is commander of
          Wolf Pack composed of PERCH, GABILAN and SEALLION.

10 January 1945
Enroute new patrol station at four engine speed.
0037 (H) Passed PALU SAPATU abeam to starboard distance 16 miles.
1500 (H) Arrived at assigned position and commenced patrolling at
          one engine speed.
1514 (H) Submerged for trim in 20 fathoms of water.
1534 (H) Surfaced.

- 12 -
Enclosure (A)

— page 189 —
U.S.S. SEALION - Report of FOURTH War Patrol (cont'd.)

10 January 1945
1624 (H) Received scouting instructions from PERCH.

11 January 1945
Patrolling at 8 knots on scouting line, across SINGAPORE -
SAIGON shipping lanes.
0654 (H) Submerged for trim.
0702 (H) Surfaced.
1025 (H) Sighted plane, unidentified. Plane was flying away and
passed out of sight shortly after sighting. (Aircraft
contact #14). Sighted various objects and debris in
the water throughout the day including a lifering,
burned hulk of a ships boat, a wooden locker. Picked
up the lifering, but no identification marks were
found on it.

12 January 1945
Patrolling at 8 knots on scouting line across SINGAPORE -
SAIGON shipping lanes.
0650 (H) Exchanged recognition signals and calls with the U.S.S.
HARDHEAD.

13 January 1945
Patrolling on scouting line at 8 knots.
0658 (H) Submerged for trim.
0712 (H) Surfaced.

14 January 1945
Patrolling on scouting line at 8 knots.
0843 (H) Submerged for trim.
0852 (H) Surfaced.
1435 (H) Submerged. Hold fire-control problem.
1522 (H) Surfaced.
1800 (H) Received dispatch from C.T.F. 71 ordering SEALION to
proceed to FREEMANTLE. Set course for barn.
- 13 -
Enclosure (A)

— page 190 —
U.S.S. SE LION - Report of FOURTH War Patrol (cont'd.
14 January 1945

1828 (H) Sighted several mines. Exploded one, sank one, and
obtained numerous hits on a third with rifle and 20 MM
fire. It was getting dark fast so decided to clear area
while we still had a little twilight left. The
explosion of the first mine was terrific. Position:
Lat. 7-08 N., Lon. 105-11 E.

2000 (H) Sent message to all subs in area informing them of the
mines and giving them our course and speed as we would
pass through their areas.

15 January 1945

Enroute FREMANTLE, W.A.

0937 (H) Sighted plane, unidentified, submerged. (Aircraft
contact #15).

1910 (H) Surfaced.

2000 (H) Exchanged recognition signals and calls with the COBL
on SJ.

16 January 1945

0650 (H) Submerged.

1004 (H) Sighted plane, unidentified. (Aircraft contact #16).

1909 (H) Surfaced.

2314 (H) Radar contact on KRI KATA ISLAND, range approximately
110,000 yards.

17 January 1945

Enroute FREMANTLE, W.A. transitting KRI KATA STRAIT.

0638 (H) Submerged.

1858 (H) Surfaced.

2100 (H) Completed transit of KRI KATA STRAIT.

18 January 1945

Enroute FREMANTLE, W.A.

- 14 -
Enclosure (A)

— page 191 —
U.S.S. SEALLION - Report of FOURTH War Patrol (cont'd.)

18 January 1945
1006 (H) Sighted mine and sank it with gunfire. Position - Lat.
          4-57 S., Lon. 113-29 E.
1111 (H) Sighted another mine. Sank it with gunfire. Position -
          Lat. 5-00 S., Lon. 113-37 E.
1346 (H) Sighted GREAT MASALEO ISLAND through high periscope,
          closed to fix position, as it is overcast and it is
          doubtful that we will be able to get sights tonight.
1502 (H) Sighted plane, unidentified, submerged. (Aircraft contact
          #7).
1812 (H) Surfaced.

19 January 1945
          Enroute FREMANTLE, W.A.
0520 (H) SJ interference bearing 180° T.
0557 (H) Submerged.
0734 (H) Sighted masts of two small steam trawlers. (Ship contact
          #4) They were roughly in column, and patrolling at 5
          knots - apparently between the LINGIAN ISLAND and
          PATERNOSER ISLAND. Position - Lat. 7-12 S., Lon.
          116-28 E.
1859 (H) Surfaced.
1903 (H) Radar contact on LOMBOK bearing 169° T, range approximate
          100,000 yards.
2305 (H) Commenced transit of LOMBOK STRAIT.

20 January 1945
          Transitting LOMBOK STRAIT enroute FREMANTLE, W.A.
0020 (H) Sighted small patrol boat dead ahead radar picked him up
          shortly after range 4800 yards. Maneuvered to avoid.
          (Ship contact #5).
0050 (H) Completed transit of LOMBOK STRAIT.
0220 (H) Radar contact on small patrol boat broad on our port
          bow range 8000 yards. Avoided. (Ship Contact #6)

- 15 -
                                                            Enclosure (A)

— page 192 —
U.S.S. SEALION - Report of FOURTH War Patrol (cont'd.)

21 January 1945
          Enroute FREMANTLE, W....
0022 (H) Sent SEALION Serial ONE.
1845 (H) Sighted possible periscope, two points abaft the port
          beam. Turned away to avoid. Position - Lat. 19-00 S.,
          Long. 113-10 E.

22 January 1945
          Enroute FREMANTLE, W....

23 January 1945
          Enroute FREMANTLE, W....
0555 (H) High periscope picked up a submarine broad on our port
          bow approximately on same course. Unable to positively
          identify although it was not a U.S. Submarine. Opened
          out to the west to avoid as we were gaining bearing on
          him.
0630 (H) Lost sight of submarine.
0733 (H) Sent SEALION Serial TWO.

24 January 1945
          Arrived FREMANTLE, W....

- 16 -
Enclosure (..)

— page 193 —
U.S.S. SEALLION - Report of FOURTH War Patrol (cont'd.)

(C) WEATHER
     During the first ten days of the patrol in the northern
part of the SOUTH CHINA SEA the seas were very rough, state
5 and 6 most of the time, sky overcast, and occasional rain
squalls. The weather improved as we patrolled southward
with seas and wind abating and the overcast breaking up.
Weather was good for the remainder of the patrol.

(D) TIDAL INFORMATION
     No unusual conditions were experienced.

(E) NAVIGATIONAL AIDS
     No navigational lights were sighted.

- 17 -
Enclosure (A)

— page 194 —
U.S.S. SEALLION - Report of FOURTH War Patrol (cont'd.)
(F) SHIP CONTACTS

NO. | TIME | LAT. | TYPE(S) | EST. | REMARKS
    | DATE | LONG |         | INITIAL COURSE |
    |      |      |         | RANGE | SPEED | LOW | CONTACT
----|------|------|||-------|-------||
1.  | :20 Dec. | 17-35 N. | 1 AK | :16,000 | 085° | High | Sub attacks
    | :1745(H) | 114-38 E. | (UNCLEAR: 2 DD) | : yds | 7 kts. | Peri | 1 and 2
    |          |          | DE 1 SC |        |        |       |
    |          |          | (UNCLEAR: LCI LEU) |
2.  | :23 Dec. | 17-50 N. | 1 Sm. | : 8,000 | - | OOD | Avoided
    | :0545(H) | 114-30 E. | Patrol | : yds | | |
    |          |          | Boat |        |        |       |
    |          |          | (Unicont) |        |        |       |
3.  | :2 Jan. | 12-56 N. | 1 DD | :18,000 | 035° | Radar | Sub attack
    | :2040(H) | 115-10 E. | 2 DD | : yds | 12 kts | | #3
4.  | :19 Jan. | 7-08 S. | 2 Sm. | :10,000 | 100° | Peri | Patrolling -
    | :0734(H) | 116-28 E. | Storm | : yds | 5 kts | | Avoided
    |          |          | Trawler |        |        |       |
5.  | :20 Jan. | 8-47 S. | 1 Small | : 5,000 | - | Look- | Patrolling -
    | :0020(H) | 115-41 E. | Patrol | : yds | | out | Avoided
    |          |          | Boat |        |        |       |
6.  | :20 Jan. | 9-22 S. | 1 Small | : 8,000 | - | Radar | Patrolling -
    | :0220(H) | 115-42 E. | Patrol | : yds | | | Avoided
    |          |          | Boat |        |        |       |
7.  | :23 Jan. | 26-37 S. | 1 SS | :12,000 | 140° T. | High | No remarks
    | :0555(H) | 112-16 E. | | : yds | | Peri |

- 18 -

Enclosure (..)

— page 195 —
U.S.S. SEALION - Report of FOURTH War Patrol (cont'd.)

(G) AIRCRAFT CONTACTS

NO. : TIME : LAT. : TYPE(S) : INITIAL : COURSE : HOW :
: DATE : LONG : : RANGE : : : CONT. : REMARKS

1. :18 Dec.:20-07 N.:Unidont: 6 mi. : - : - :Lookout Divod to avoid
:1221(I):124-45 E: : : : : detection

2. :23 Dec.:17-03 N.: Poto : 8 mi. : 030 :Lookout Divod to avoid
:1037(I):114-05 E: : : : : detection

3. :24 Dec.:17-58 N.: Kato : 8 mi. : 210 :Lookout Divod to avoid
:0936(I):114-02 E: : : : : detection

4. :28 Dec.:17-33 N.:(2)Rufe: 8 mi. : - : - :Lookout Divod to avoid
:1037(H):113-01 E:& Unidont : : : : : detection

5. :29 Dec.:14-15 N.: Noll : 8 mi. : 180. :Lookout Divod to avoid
:1055(H):117-04 E: : : : : detection

6. :30 Dec.:13-11 N.:Unidont: 8 mi. : - : - :Lookout Divod to avoid
:1522(H):117-58 E: : : : : detection

7. :31 Dec.:13-25 N.: Mavis : 5 mi. : - : - :Lookout Divod to avoid
:1415(H):117-50 E: : : : : detection

8. :31 Dec.:13-25 N.:Unidont: 7 mi. : - : - :Lookout Divod to avoid
:1638(H):117-50 E: : : : : detection

9. :2 Jan.:13-19 N.:Unidont: 8 mi. : - : - :Radar: Not sighted
:1237(H):113-47 E: : : : : (SJ)

10. :2 Jan.:13-09 N.: Mavis : 8 mi. : - : - :Radar: Divod to avoid
:1445(H):114-17 E: : : : : (SJ) & detection
: : : : : : : : lookout

11. :3 Jan.:13-40 N.: Mavis : 8 mi. : - : - :Lookout Divod to avoid
:1447(H):113-07 E: : : : : detection

12. :4 Jan.:13-36 N.: Botty : 8 mi. : ? : - :Lookout Divod to avoid
:0942(H):113-41 E: : : : : detection

13. :4 Jan.:13-46 N.: PEM : 3 mi. : - : - :Lookout Divod to avoid
:1343(H):114-01 E: : : : : avoid

14. :11 Jan.: 6-35 N.:Unidont: 10 mi.: - : - :Lookout Plane dis-
:1025(H):105-00 E: : : : : : appeared in
: : : : : : : : clouds.

15. :15 Jan.: 3-45 N.:Unidont: 5 mi. : - : - :Lookout Divod to avoid
:0937(H):106-33 E: : : : : detection

16. :16 Jan.: 0-03 S.:Unidont: 5 mi. : - : - :Poris: No remarks
:1004(H):107-05 E: : : : :

- 19 -
Enclosure (A)

— page 196 —
U.S.S. SILLION - Report of FOURTH War Patrol (cont'd.)
(G) CONTACT CONTACTS

| NO. | TI | L.T. | INITIL | | | | |
|---|---|---|---|---|---|---|---|
| | DATE | LONG | TYE(S) | RNG | COURS | CONT. | REMARKS |
| 17. | 18 Jan. | 5-30 S. | Unident: | 6 mi. | - - - | GOOD | Submerged to |
| | 1502(I) | 114-10 E | | | | | avoid contact- |
| | | | | | | | ion. |

- 20 -
Encl sure (..)

— page 197 —
U.S.S. SILLION - Report of FOURTH War Patrol (cont'd.)
(C) ATTACK DATA. TORPEDO ATTACK REPORT FORM.

U.S.S. SILLION Torpedo Attack No. ONE Patrol No. FOUR
Time: 1937 (I) Date: 20 Dec. 1944. Lat. 17-40 N. Long. 114-09 E.

TARGET DATA - DAMAGE INFLICTED

Description: One large freighter similar to KAKUJU Class
(ONI - 200 J, page 99) escorted by one SC on port
side and one DE on starboard side. Contact made
at 20,000 yards by high periscope one hour before
darkness in conditions of fair to poor visibility
and state six seas.
Ships Sunk: None MITYU MARU
Ships Damaged: One AK - KAKUJU Class 9467 tons (ONI - 200 J,
page 99) (EU)
Damage Determined by: Saw and heard four timed torpedo hits.
Target Draft: 24 foot. Course: 047° T. Speed: 6 kts. Range: 3000
yds.

OWN SHIP DATA

Speed: 5 knots. Course: 175° T. Depth: Surface. Angle: Zero

FIRE CONTROL AND TORPEDO DATA

Type Attack: Night Radar. Radar Firing Bearing: Bow Tubes.

| | 6 | 5 | 4 | 3 | 2 | 1 |
|---|---|---|---|---|---|---|
| Tubes Fired: | 6 | 5 | 4 | 3 | 2 | 1 |
| Track Angle: | 69 ½ | 72 ½ | 67 ½ | 67 ½ | 69 ½ | 73 ½ |
| Gyro Angle: | 343 | 340 | 344 ½ | 345 | 342 ½ | 339 |
| Depth Set: | 8 ft. | 8 ft. | 8 ft. | 8 ft. | 8 ft. | 8 ft. |
| Power: | - | - | - | - | - | - |
| Hit or Miss: | HIT | HIT | Miss | HIT | HIT | Miss |
| Erratic: | No | No | Yes | No | No | No |
| Mk. Torpedo: | 18-1 | 18-1 | 18-1 | 18-1 | 18-1 | 18-1 |
| Serial No.: | 56971 | 56952 | 56216 | 56625 | 54584 | 56221 |
| Mk. Exploder: | 4-7 | 4-7 | 8-5 | 8-5 | 8-5 | 8-5 |
| Exploder Serial No.: | 17261 | 16138 | 10151 | 10469 | 10545 | 10469 |
| Actuation Set: | Contact | Contact | Contact | Contact | Contact | Contact |
| Actuation Actual: | Contact | Contact | - | Contact | Contact | - |
| Mk. Warhead: | 18 | 18 | 18-2 | 18-2 | 18-2 | 18-2 |
| Serial No.: | 1324 | 132 | 4230 | 4205 | 4161 | 4190 |
| Explosive: | TNT | TNT | TNT | TNT | TNT | TNT |
| Firing Interval: | 10 | 10 | 10 | 10 | 10 | 10 |
| Type Spread: | 2° Divergent |
| Sea Conditions: | State SIX |
| Over Activity: | U.S.S. SILLERY. |

- 21 - Enclosure (L)

— page 198 —
U.S.S. SEALION - Report of FOURTH War Patrol (cont'd.)

(H) ATTACK DATA TORPEDO ATTACK REPORT FORM

U.S.S. SEALION Torpedo Attack No. ONE Patrol No. FOUR
Time: 1937 (H) Date: 20 Dec. 1944. Lat. 17-48 N. Long. 114-09 E.

FIRE CONTROL AND TORPEDO DATA

Remarks:
Four definite timed torpedo hits were seen and heard.
The CRM on the sound gear believed there were five
hits. Target slowed to three knots, then stopped
while escorts circled him. There was a flurry of
signalling and flashing of lights in the target
group. Torpedoes were fired with a state six follow-
ing sea and eight foot depth settings. The torpedo
from #4 tube broached, but is believed this was
caused by the fact that the bow was up in the air at
the instant of firing this tube. All other torpedoes
ran normally. An experiment was conducted in that
the rudders were on full dive on all torpedoes when
they were fired. It is not known whether this had
any effect, but it is significant to note that five
torpedoes made normal runs in a state six sea, with
8 foot settings.

- 22 -
Enclosure (L)

— page 199 —
U.S.S. SALLION - Report of FOURTH War Patrol (cont'd.)
(H) TT.C. D.T. TORPEDO ATTACK FORM

U.S.S. SALLION Torpedo Attack No. TWO Patrol No. FOUR
Time: 0032 (H) Date: 21 Dec. 1944. Lat. 17-48 N. Lon. 114-09 E.

TARGET D.T. - DAMAGE INFLICTED

Description: This was the same target attacked in Torpedo attack
No. ONE. The ship was stopped and reports were
patrolling 3000 yard circles on either side of hi..
Ships Sunk: One - [UNCLEAR: crossed out text, possibly MARU] Class 9467 tons (ONI - 208 J,
Page 99)(LU) [UNCLEAR: L.RU]
Ships Damaged:
Damage Determined by: Two torpedo hits accompanied by a shot of
flames and much smoke. Target disappeared in
sight and radar screen at 6000 yards.
Target Drift: 24 ft. Course: Drift: 180° Speed: ½ kt. Range: 2500
Bearing: 270° yds.

OWN SHIP D.T.

Speed: 5 kts. Course: 140° T. Depth: Surface: Angle: Zero

FIRE CONTROL AND TORPEDO D.T.

Type Attack: Night Radar. Radar Firing Bearings. Three Lower Tubes.

| | 6 | 5 | 4 |
|---|---|---|---|
| Tubes Fired: | 6 | 5 | 4 |
| Track Angle: | 59 S | 58 S | 57 S |
| Gyro Angle: | 009 | 008 | 007 |
| Depth Set: | 10 | 10 | 10 |
| Low Power: | --- | --- | --- |
| Hit or Miss: | HIT | HIT | Miss |
| Erratic: | No | No | No |
| Type Torpedo: | 10-1 | 10-1 | 10-1 |
| Serial No.: | 56244 | 56664 | 56317 |
| Mk. Exploder: | 4-7 | 4-7 | 4-7 |
| Serial No.: | 17060 | 16763 | 16191 |
| Actuation Set: | Contact | Contact | Contact |
| Depth Actuation: | Contact | Contact | --- |
| Time Run: | 48 | 48 | 48 |
| | 27 | 27 | 27 |
| Explosive: | 10 | 10 | 10 |
| Firing Interval: | 1° Divergent | | |
| Type Spread: | State Six | | |
| Sec. Conditions: | U.S.S. SALLY. | | |
| Overhaul Activity: | | | |

- 23 -

Enclosure (...)

— page 200 —
U.S.S. SEALLION - Report of FOURTH War Patrol (cont'd.)
(H) ATTACK DATA TORPEDO ATTACK REPORT FORM

U.S.S. SEALLION Torpedo Attack No. TWO Patrol No. FOUR
Time: 0032 (H) Date: 21 Dec. 1944 Lat. 17-48 N., Long. 114-09 E.

FIRE CONTROL AND TORPEDO DATA

Remarks: Two definite hits accompanied by large sheet of flame
and black smoke. Target disappeared from sight and
radar screen at 6000 yards. Both escorts continued
to mill about the spot where the target sank. Several
large patterns of depth charges were dropped during
the time the target was sinking.

- 24 -
Enclosure (A)

— page 201 —
U.S.S. SEALLION - Report of FOURTH War Patrol (cont'd.)
(II) ATTACK DATA TORPEDO ATTACK REPORT FORM

U.S.S. SEALLION Torpedo Attack No. THREE Patrol No. FOUR
Time: 0016 (M) Date: 3 Jan. 1945. Lat. 13-37 S. Long. 114-44 E.

TARGET DATA - DAMAGE INFLICTED

Description: One Medium [UNCLEAR: Tanker] (LU) escorted by two DD's (U's).
Escorts 2000 yards on port bow started [UNCLEAR: to]
attack. The near Destroyer was the ship attacked.
Ships Sunk: None.
Ships Damaged: None.
Probably Sunk or Damaged by: None.
Target Draft: Less than 6 ft. Course: 000° T. Speed: 12 knots.
Range: 4030 yds (at firing)

OWN SHIP DATA

Speed: 6 knots. Course: 265. Depth: Surface. Angle on Bow: Zero.

FIRE CONTROL AND TORPEDO DATA

Type Attack: Night Radar - Radar Bearings - Stern Tubes.

| | 10 | 9 | 8 | 7 |
|:|:|:|:|:|
| Tubes Fired: | 10 | 9 | 8 | 7 |
| Track Angle: | 66 1/2 | 67 1/2 | 67 1/2 | 70 1/2 |
| Gyro Angle: | 209 | 208 1/2 | 207 1/2 | 204 1/2 |
| Depth Set: | 6 ft. | 6 ft. | 6 ft. | 6 ft. |
| Power: | --- | --- | --- | --- |
| Hit or Miss: | Miss | Miss | Miss | Miss |
| Erratic: | No | No | No | No |
| Mk. Torpedo: | 23 | 23 | 23 | 23 |
| Serial No.: | 61702 | 62178 | 52912 | 41439 |
| Mk. Exploder: | 6-4 | 6-4 | 6-4 | 6-4 |
| Serial No.: | 11608 | 1336 | 11584 | 1165 |
| Actuation Set: | Contact | Contact | Contact | Contact |
| Actuation Actual: | --- | --- | --- | --- |
| Mk. Warhead: | 16-1 | 16-1 | 16 | 16-1 |
| Serial No.: | 9211 | 13769 | 19245 | 2245 |
| Explosive: | TNT | TNT | TNT | TNT |
| Firing Interval: | 10 | 10 | 10 | |
| Type Spread: | 1° Divergent | | | |
| Sea Conditions: | State Five | | | |

Overhaul Activity: U.S.S. SEALION.
Remarks: When position was reached ahead of convoy the
moon was out bright and the visibility excellent.
The target group could be seen clearly
at 10,000 yards. Since the flanking destroyers
were 2000 yards from the [UNCLEAR: convoy] we could never have
reached an attack position on the [UNCLEAR: convoy] without
- 25 - Enclosure ( )

— page 202 —
U.S.S. SEALION - Report of FOURTH War Patrol (cont'd.)

(H) ATTACK NO. THREE TORPEDO ATTACK REPORT FORM
U.S.S. SEALION Torpedo Attack No. THREE Patrol No. FOUR
Time: 0016 (H) Date: 3 Jan. 1945 Lat. 13-37 N. Long. 114-44 E.

FIRE CONTROL AND TORPEDO DATA

Remarks: being sighted by the DD. I thought we could not get in to
about 4000 yards and since we had a perfect set-up I
decided to attack the near DD. With but one escort
remaining the rest would be easy. We were carrying
electric torpedoes forward and air torpedoes aft - so
I was forced to fire the stern tubes. In turning to
bring the stern tubes to bear the Commanding Officer
miscalculated and left a 4400 yard run which was more
than was intended. A depth setting of six foot was
used because it was feared a three foot setting would
have broached in the sea that was existing. At the
time the torpedoes should have reached the target he
turned on a red truck light. It is believed the
torpedoes ran under the target. Five minutes after
firing three loud explosions at 10 second intervals
were heard. In spite of all the fact that all three
ships were overlapping on firing it is believed these
explosions were end of run explosions - since the run
to the other ships was excessive for those torpedoes.

This was the SEALION's first experience with end
of run explosions and we don't like them. They
thoroughly alerted the convoy and acquainted them with
the direction from which we fired. It was after these
explosions that the near DD turned down the torpedo
tracks and dropped many "king size" depth charges at
the point from which we fired. Evasion was accomplished
on the surface at flank speed.

- 26 -
Enclosure (A)

— page 203 —
U.S.S. SEALION - Report of FOURTH War Patrol (cont'd.)

(I) MINES:
Three drifting mines were sighted in vicinity of Lat.
7-08 N., Long. 105-11 E. One went off with a terrific exp-
losion on being hit by rifle fire. One was sunk after hitting
it numerous times with 20 MM and rifle fire. The third one
was hit numerous times but was not seen to sink. Darkness
prevented further efforts to destroy the third mine and
search vicinity for others. Two more mines were sunk in
vicinity of Lat. 5-00 S., Long. 113-33 E. with rifle fire.
All mines sighted were standard spherical horned mines.
They were quite rusty and covered with barnacles. Despite
the fact they all had apparently been in the water a long
time the SEALION has a healthy respect for that after
witnessing the tremendous violence with which the one
exploded.

(J) ANTI-SUBMARINE MEASURES AND EVASIVE TACTICS:
The only two contacts made on this patrol were single
ships each with two escorts patrolling from 1500 - 2000 yards
on each side of the target. The usual indiscriminate depth
charging following attack was encountered on each occasion.
Evasion was accomplished on the surface at high speed, but
it is not believed we were sighted on either attack.

(K) MAJOR DEFECTS AND DAMAGE:
ENGINEERING
Engineering performance was very good throughout the patrol
considering the length of time since SEALION's last refit.
Six broken crankcase to head studs were renewed, and three
cracked cylinder liners were renewed or replaced. The
blower upper drive gear bearing thrust surfaces badly wiped
on #2 main engine. The thrust surfaces on #1 main engine
pump idles and drive gears were also wiped. Cleaned babbitt
out of oil grooves and smoothed thrust surfaces. Two days
later routine inspection disclosed the same conditions in #1
main engine, and the same repairs were made. It is believed
that these casualties would have been avoided had the engines
undergone an overhaul after the Third War Patrol. The
exhaust elbows leading from the engine out board exhaust
valves to the mufflers on all engines have large holes in
them nullifying the silencing effect of the muffler and
permitting sparking.

ELECTRICAL
The pit log after about one week in the area became extremely
erratic, the exact cause was undetermined.

- 27 -
Enclosure (L)

— page 204 —
U.S.S. SEALION - Report of FOURTH War Patrol (cont'd.)
(K) MAJOR DEFECTS AND DAMAGE:

ELECTRICAL

The follow up motor of the rotary distance transmitter and
the pump motor field rectifier were renewed without correcting
the trouble completely. The petcocks on the control unit
leaked persistently, and the adjustments would not hold.
The entire unit seems to have suffered from salt water leaks
and is in need of a through shop overhaul.

HULL

For the fourth successive patrol the hydraulic accumulator
still pounds and groans when charging, despite all efforts to
correct this condition. It is believed that the main cause
is due to improper lubrication and worn out packing. New
packing has not been available during the last two refits.

When testing No. 3 & 5 F.B.T. vents after converting the tanks
to normal ballast tanks, one of the hydraulic supply and
return lines ruptured in the crows nest. Temporary repairs
were made using a piece of rubber and a hose clamp.

(L) RADIO

Reception of BAKERS during daylight was fair with occasional
drift in frequency observed. It was noted that 12630KCS was
the best frequency for copying schedule during daylight.

Wolf-pack communications were satisfactory with the exception
that the code used was inadequate in some situations.

Recommended addition is:

(a) Floating mines destroyed in position Lat. ____ Long. ____.

(M) RADAR

SJ - 1 Operation of the SJ was excellent considering it has
been operated for over three months every night with no opp-
ortunity for an extended check and no access to spare parts.
The L 1 coil in the transmitter failed. This is not included
in the spare parts. Considering how many times this important
part has failed in the SEALION and other boats it is hard to
see why it is so difficult to obtain a spare for it. Hours
operated this patrol - 560 Since refit - 980.

SD - Not used - continues to take up valuable space.

- 28 - Enclosure (A)

— page 205 —
U.S.S. SEALLION - Report of FOURTH War Patrol (cont'd.)

(I) R.D.R
S.P. Frequencies from 80 to 3400 mc. a-cycles were
used continously night and day without contacts. This
is a well built piece of equipment and we were fortunate to
have had no casualties since no spare parts came with our
S.P.R. Spares for the S.P. are adequate.

(N) SOUND
No data as no submerged approaches were made.

(O) DENSITY LAYERS
The following density layers were observed.

| DATE | TIME | LAT | LONG | TYPE GRADIENT | DEPTH EXPL. |
|---|---|---|---|---|---|
| 29 Dec. | 0730 (H) | 13-29 N | 117-47 E | Isothermal to | 350 feet |
| | | | | 200 ft. below | |
| | | | | 200 ft. a | |
| | | | | relative gradient | |
| | | | | of 110 per 100 | |
| | | | | feet. | |
| 6 Jan. | 0800 (H) | 10-37 N | 109-59 E | Isothermal to | 320 feet |
| | | | | 120 ft. below | |
| | | | | 120 ft. a nor- | |
| | | | | mative gradient | |
| | | | | of 40 per 100 | |
| | | | | feet. | |

(P) HEALTH, FOOD, AND HABITABILITY
The health of the crew is good considering the long period
without rest. One case of catarrhal fever with six (6) sick
days lost due to the total amount of working days. No
other illness or injury. The usual cases of headaches and
constipation occured none being serious. One serious injury
a compound fracture of the right thumb was efficiently
treated by the pharmacists mate whose skill undoubtedly
saved the mans thumb. WILLIS, Roy Jackson, Jr., 266 29 34,
CPhM (T), U.S. Navy is to be commended.

Food was adequate and well prepared.

Habitability was good throughout the patrol. Recirculation
through the after engine room induction when submerged seems
to help greatly in keeping the temperature down.

- 29 -

Enclosure (..)

— page 206 —
U.S.S. SEALION - Report of FOURTH War Patrol (cont'd.)

(P) HEALTH, FOOD, AND HABITABILITY

The SEALION uses CO2 absorbent whenever making an all day
dive. It is believed that this helps
greatly in reducing the amount of headaches during a
submerged day.

(Q) PERSONNEL

The performance of duty of officers and men left nothing to be
desired. There was, however, during the last two weeks of
the patrol a noticeable decrease in efficiency and the usual
evidence of high spirits and enthusiasm was lacking. The
officers and crew have not had a rest, since the SEALION's
last refit 30 September to 17 October 1944 at PEARL HARBOR -
a total of 99 days. Out of this time all hands were ashore
in GUAM for but an average of about 4 hours per man.

(a) Number of men on board during patrol 77
(b) Number of men qualified at start of patrol 59
(c) Number of men qualified at end of patrol 66
(d) Number of unqualified men making their first patrol 2
(e) Number of men advanced in rating during patrol 5

(R) MILES STILLED - FUEL USED

GUAM to area 1913 mi. 23,035 gals
In area 5295 mi. 49,236 gals
Area to FREMANTLE 2764 mi. 36,900 gals
Total 9972 mi.

(S) DURATION

Days enroute to area 7.2
Days in area 25.6
Days enroute to base 10
Days submerged 10

(T) FACTORS OF ENDURANCE REMAINING

| TORPEDOES | FUEL | PROVISIONS | PERSONAL FACTOR |
|---|---|---|---|
| 11 | 9,000 gals | 20 days | 5 days |

Limiting factor this patrol - C.T.F. 71 dispatch.

(U) RADIO AND R.D.R COUNTERMEASURES

None encountered.

- 30 - Enclosure (A)

— page 207 —
U.S.S. SILION - Report of FOURTH War Patrol (cont'd.)
(V) REMARKS
None.

REPORT ON MK. 18 TORPEDOES

After 40 days, rounds of from 30 to 70 volts were
noted on the electric torpedoes in number 5 and 6 tubes.
At the same time a good deal of moisture was observed on
the tops of the batteries in these torpedoes. We believed
this moisture was condensation, and that it was greater in
these tubes because they were cooled by bilge water. These
two torpedoes got no hotter than any of the others, but
each day they were cooled lower than the others by the cool
air and water in the bilges. To counteract this, the two
torpedoes in tubes #5 and 6 were ventilated each day to
carry off the condensate. No further troubles with rounds
were experienced.

- 31 -
Enclosure (..)

— page 209 —
FC5-26/A16-3
Serial ( 036 )

CONFIDENTIAL
FIRST ENDORSEMENT
CO SEALION conf. 1.tr. SS315/
A16-3/FO ser. 0100 of 1/24/45.

SUBMARINE SQUADRON TWENTY SIX
Rr

Care of Fleet Post Office,
San Francisco, California.
12 January 1945.

From: Commander Submarine Squadron TWENTY SIX.
To : Commander-in-Chief, UNITED STATES FLEET.
Via : (1) Commander Submarines, SEVENTH FLEET.
(2) Commander SEVENTH FLEET.

Subject: USS SEALION - Report of Fourth War Patrol.

1. The fourth war patrol of SEALION covered a period of forty days from
departure Guam to arrival FREMANTLE, W.A. Twenty-six days were spent in the South
China Sea area.

2. Area coverage was good in spite of an unseasonal amount of bad weather.
All but six days in the area were spent on the surface.

3. Only two ship contacts worthy of torpedo fire were made and both of these
were developed into attacks, the first which was eminently successful.

Torpedo Attacks 1 and 2. On 20 December, the first day in the area, sight
contact was made by high periscope on a large AK with a DE escort. This contact,
at 1445, was developed by trailing target from ahead. SEALION maneuvered into
darkness to make the attack. At 1937, after a well executed approach, six torpedoes
were fired from a range of 3000 yards for four hits. SEALION evaded the escort and
the target to surface at 10,000 yards, reloaded, and waited for the target to sink.
Two and a half hours later this tough ship was still afloat and the Commanding
Officer commenced another approach. Cleverly analyzing the evolution of the escort,
he maneuvered into a fine firing position and fired three torpedoes at 2500 yards
for two hits which finished off this large and valuable target.

Torpedo Attack No. 3. This attack, on 3 January, was made on a convoy consist-
ing of one AK and two escorts believed to be DDs. BLENNY first reported the convoy
at 0015 on 3 January. SEALION proceeded to intercept. CALAMAN failed to attain attack
position and at 0016 on 3 January, SEALION fired four torpedoes, range 4000 yards,
at the near escort which was, at the time, in line with the AK. Apparently all
torpedoes either missed or passed under the target with a six foot depth setting.
It appears likely that the former is the case. SEALION was pursued by the escort,
which was shedding some doubt on the depth setting, and orders to return to station
precluded further pursuit.

4. SEALION reached Fremantle in good material condition, considering the
fact that 99 days had elapsed since last refit. Two complete and two partial main
engine overhauls were necessary. Refit will be accomplished in the normal period by
WELDON and Submarine Division 261 relief crew.

5. The Squadron Commander welcomes SEALION to this area and heartily
congratulates the Commanding Officer, officers and crew on a well conducted and
successful patrol.

[SIGNATURE: L. J. Huffman]
L. J. HUFFMAN.

— page 210 —
FE24-71/A16-3
Serial 0375
C-O-N-F-I-D-E-N-T-I-A-L

UNITED STATES NAVY
25 February 1945
14/hr

SECOND ENDORSEMENT to:
ComSubPac Conf. Ltr.
A16-3 Serial 010-45
dated 24 January 1945.
Report of Fourth War
Patrol.

[STAMP: 10 MAR 1945]

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

Subject: U.S.S. SEALION (SS315) - Report of Fourth War
Patrol - Comment on.

1. The Fourth War Patrol of the SEALION was the first
in command for Lieutenant Commander C. T. PUTMAN, U.S.N. This patrol
was conducted in the areas of the SOUTH CHINA SEA.

2. The first series of attacks were launched during
the night of 20 December against a very large AK protected by two
escorts. On the first attack, after adroitly evading one escort,
SEALION achieved a very favorable surface attack position and at
1937 fired six torpedoes for four timed and observed hits. This
attack seriously damaged and stopped the target, and for three hours
SEALION maneuvered for the second attack at 0032 which sank the
target with two hits out of three torpedoes fired. Very high seas
made torpedo performance at shallow depth questionable, so attacks
on the escorts were not deemed feasible. This series of effective
night attacks against a well-escorted and valuable target are
particularly noteworthy on a Commanding Officer's first patrol.
They indicate an audacity, skill and effectiveness which
will result in the infliction of more heavy damage upon the enemy
in the future.

3. From 28 December to 14 January the SEALION performed
valuable reconnaissance duty in support of American re-occupation of
the PHILIPPINES. On 3 January SEALION executed an unsuccessful night
surface attack on a transport escorted by two DD; four torpedoes
missed after an unexpected zig of the target resulted in a rather
long range shot. At 0150 CAIMAN (OTC) ordered SEALION to cease
attacks and return to her position on the reconnaissance line.

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

- 1 -

— page 211 —
FE24-71/A16-3 UNITED STATES NAVY 14/hr
Serial: 0375 25 February 1945
C-O-N-F-I-D-E-N-T-I-A-L

SECOND ENDORSEMENT to:
USS SEALION Conf. Ltr.
A16-3 Serial 010-45
dated 24 January 1945.
Report of Fourth War
Patrol.

Subject: U.S.S. SEALION (SS315) - Report of Fourth War
Patrol - Comment on.

— page 212 —
UNITED STATES FLEET
COMMANDER SEVENTH FLEET

A16-3(8)(P-3-4/eeh)
Serial: 0923

[STAMP: 10 MAR 1945]

CONFIDENTIAL

THIRD ENDORSEMENT on:
CO, USS SEALION conf
ltr serial 010-45 of
24 January 1945.

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

Subject: U.S.S. SEALION (SS315) - Report of Fourth
War Patrol.

1. Forwarded.

R. H. CRUIZEN
By direction.

3 05042

— page 213 —
SS315/L16-3/WFO
Serial ( 011-45 )

[UNCLEAR: S-E-C-R-E-T]
[STAMP: DECLASSIFIED]

From: The Commanding Officer.
To : The Commander-in-Chief, United States Fleet.
Via : (1) The Commander Submarine Division ONE HUNDRED TWENTY TWO
(2) The Commander Submarine Squadron TWENTY TWO.
(3) The Commander Submarines SEVENTH FLEET.
(4) The Commander-in-Chief, United States Pacific Fleet.

Subject: U.S.S. SEALION - Report of War Patrol Number FIVE.

Enclosures: (A) Subject Report.
(B) Track Chart for ComSubs7thFlt.
(C) Log of Radio Reception for ComSubs7thFlt.

1. Enclosure (A), covering the FIFTH War Patrol of this
vessel, conducted in the southern part of the SOUTH CHINA SEA off
the mouth of the GULF OF SIAM and the east coast of the MALAY
PENINSULA, during the period of 19 February to 6 April 1945, is
forwarded.

U.S.S. SEALION (SS315)

c/o Fleet Post Office,
San Francisco, Calif.

6 April 1945.

[STAMP: DECLASSIFIED ART. 0445, OPNAVINST 5510.1C]
[HANDWRITTEN: BY DMASH DATE 6/5/77]

C. F. TUTMIN.

[HANDWRITTEN: FILMED]
[HANDWRITTEN: 118984]

— page 214 —
U.S.S. SEALION - Report of FIFTH War Patrol.

(A) PROLOGUE:

The U.S.S. SEALION arrived FREMANTLE, WESTERN AUSTRALIA
for refit on 24 January 1945 on completion of her FOURTH War
Patrol. This was the first normal refit given the SEALION in
99 days; voyage repairs had been conducted by the U.S.S. SPERRY
in GUAM during a four day availability at the end of the THIRD
Patrol.

Refit was completed by the U.S.S. ANTHEDON and Submarine
Division TWO HUNDRED SIXTY-ONE Relief Crew on 8 February 1945.
The following major work items were accomplished:

1. Installation of doubler hatches.
2. Installation of halving device on T.D.C.
3. Installation of steerable sweep on SJ radar.
4. Installation of pulser circuit and keying switch on
   SD radar.

On 8 February 1945 Lieutenant DE-V(G) J. S. BRYANT, USNR.
and Lieut.(jg) O-V(S) J. C. BATES, USNR. were detached; and
Lieut.Comdr. E. R. HOLT, Jr., U.S. Navy and Ensign G. M. HECKER,
U.S. Navy reported aboard for duty.

Post repair trials, sound tests and training exercises were
conducted from 8 February - 18 February. SEALION ready for sea
on 19 February 1945 carrying ten Mk. 23 and six Mk. 14-3 A
torpedoes forward and six Mk. 18-1 and three Mk. 27 torpedoes
aft.

(B) NARRATIVE:

1. OFFICERS ON BOARD                               PREVIOUS NO. PATROLS

Lieut.Comdr. Charles Francis PUTMAN, USN.                     8
Lieut.Comdr. Edward Rowell HOLT, Jr., USN.                    9
Lieut. D-V(S) Clayton Eugene BRELSFORD, USNR.                 4
Lieut. Joseph Fischer RYAN, USN.                              4
Lieut. Harold Henry HAGEN, USN.                               1
Lt.(jg) E-V(S) Wayne Ernest BROWNELL, USNR.                   1
Lt.(jg) E-V(RS) Frederick Sheppard HOLT, USNR.                3
Lt.(jg) Daniel Philip BROOKS, USN.                            4
Lt.(jg) Fred Gotthilf SCHULER, USN.                           6
Ensign George Milton HECKER, USN.                             0

2. CHIEF PETTY OFFICERS ON BOARD

BELL, Joseph S., CTM(AA)(T), (SS), USN.                      12
MAILLOUX, Kenneth G., CHOM(T), (SS), USN.                    11
PAGEL, Edward F., CMOM(AA)(T), (SS), USN.                    10
REMBIS, Stephen F., CRM(AA), (SS), USN.                       4

- 1 -

— page 215 —
U.S.S. SEALION - Report of FIFTH War Patrol (cont'd.)

(B) NARRATIVE: (cont'd.)

2. CHIEF PETTY OFFICERS ON BOARD PREVIOUS NO. PATROLS
    GOETZ, Alfred K., CPT(AA)(T), (SS), V-6, USNR. 4
    WILLIAMS, Roy J., Jr., CPHM(AA)(T), (SS), USN. 4

ALL TIMES HOW (-8)

19 February 1945
1432 Departed FREMANTLE, WESTERN AUSTRALIA for FIFTH War Patrol in
     accordance with C.T.G. 71.1 OpOrd 23-45 in company with
     U.S.S. MINGO.

20-23 February 1945
     Enroute patrol area conducting training exercises with MINGO.
     Held daily drills, training dives and school of the boat

20 February 1945
1200 Position L 28° 46.0 S.
     / 112° 47.0 E

21 February 1945
1200 Position L 23° 45.0 S.
     / 112° 43.0 E

22 February 1945
1200 Position L 18° 45.0 S
     / 113° 33.0 E

23 February 1945
1200 Position L 13° 43.0 S
     / 115° 01.0 E

24 February 1945
0601 Dived for the day 80 miles south of LOMBOK STRAIT. Conducted
     submerged patrol.
1200 Position L 10° 09.0 S
     / 115° 35.0 E
1905 Surfaced; set course for LOMBOK STRAIT.
2346 Commenced transit of LOMBOK STRAIT.

- 2 -

— page 216 —
U.S.S. SEALION - Report of FIFTH War Patrol (cont'd.)
25 February 1945
0150 Completed transit of LOMBOK STRAIT.
0900 Passed KANGEAN ISLANDS abeam to port, 45 miles.
1200 Position L 6° 01.0 S
     / 116° 51.0 E
1300 Ship contact #1. Sighted submarine periscope bearing 040° T,
     3500 yards from position L 5° 50.9 S
     / 116° 41.3 E
     maneuvered to avoid.
1845 Passed LAUROT ISLANDS abeam to starboard, 23 miles.
26 February 1945
0000 Passed between ARENDS I. and LITTLE MASALEMBO I.
0508 Passed ANNIE FLORENCE REEF abeam to port, 29 miles.
0621 Trim dive.
0638 Surfaced.
0924 Passed BAWEAN I. abeam to port, 61 miles.
1045 Sighted single-masted fishing vessel; maneuvered to invest-
     igate. Ship contact #2.
1125 Closed fishing boat in position L 4° 42.0 S
     / 112° 18.0 E
     Identified as small sail boat, SALIBABAN, manned by five
     native natives, who could not speak English.
1130 Cleared area.
1200 Position L 4° 42.0 S
     / 112° 06.0 E
1243 Received orders from C.T.F. 71 to form WOLFPACK with MINGO and
     PAMPANITO in vicinity of 7° N, 104° E.
27 February 1945
0112 Passed DISCOVERY EAST BANK abeam to port, 36.5 miles.
0646 Dived for the day 28.5 miles south of SERUTU I. light.
     Conducted submerged patrol.
- 3 -

— page 217 —
U.S.S. SEALION - Report of FIFTH War Patrol (cont'd.)
27 February 1945 (cont'd.)
1200 Position L 2° 01.8 S
     / 108° 55.0 E

1927 Surfaced.
2100 Passed SERUTU I. abeam to starboard, 6 miles.

28 February 1945
0750 Crossed Equator at longitude 107° 07.0 E.
0810 Passed ST. BARBE (PEDJANTAN) I. abeam to starboard, 7.5 miles.
1100 Passed BADAS ISLANDS abeam to starboard, 8.5 miles.
1200 Position L 00° 42.0 N
     / 106° 43.0 E
1244 Passed ST. JULIAN (TOKONG KEMOEDI) I. abeam to starboard, 6
     miles.
1415 Passed CAMEL'S HUMP (DOEMDOEM) I. abeam to starboard, 11 miles.
1448 Plane contact #1: SD Radar contact 12 miles; dived 13.5 miles
     northwest of DOEM-DOEM I.
1520 Surfaced.
2149 Sent STA in area to PAMPANITO.

1 March 1945
0000 Passed ANAMBAS ISLANDS abeam to port 22 miles.
0346 Passed GREAT NATUNA I. abeam to starboard 60 miles. Set
     course 315° T for assigned area.
1050 Sighted U.S. Submarine bearing 258° T, 6 miles from position
     L 5° 10.0 N
     / 105° 53.8 E
1115 Exchanged recognition signals and calls with U.S.S. PINTADO
     by SJ Radar. Received plain language radio message on
     effective Wolfpack frequency. (NOTE: This frequency had gone
     into effect at 0930 (H) this date.) The message as received:
     "BTR W JRX QTH AWA MERU IN PSN LAT 5.49 N LNG 106.04 CO
     194 SFD 13.5". This transmission was copied by an experienced
     Chief Radioman who instantly recognized it as Jap procedure;

- 4 -

— page 218 —
U.S.S. SE LION - Report of FIFTH War Patrol (cont'd.)
1 March 1945 (cont'd.)

REASONS:
     a. Plain language.
     b. Prefix "J" in originator's call.
     c. Unorthodox abbreviations.
     d. Use of "R's" for "periods".
     e. Use of long dash for "zero".
     f. Note was I C W.
     g. Characteristic Jap "swing" in keying.

1128 Sighted smoke on the horizon bearing 331° T; commenced track-
     ing. Ship contact #3.
1200 Position L 5° 10.0 N
     / 105° 44.0 E
1230 Identified target as hospital ship; course 203° T, speed 6.2
     knots.
1250 Dived; continued approach submerged.
1340 Took periscope photographs of ship at 1500 yard range and 90°
     track in position: L 5° 06.0 N
     / 105° 34.0 E
1511 Hospital ship over the hill; surfaced and set course 320° T
     for assigned area.

2 March 1945
0002 Completed rendezvous with U.S.S. PAMPANITO L 6° 54.0 N
     / 104° 06.0 E
     Received Wolfpack instructions from PAMPANITO.
0045 Set course 245° T for search sector assigned by PAMPANITO.
0837 Plane contact #2; SD radar contact, 12 miles. Dived in
     position L 6° 28.5 N
     / 102° 52.0 E
0913 Surfaced; resumed surface patrol 50 miles off the northeast
     coast of MALAY PENINSULA.
1200 Position L 6° 29.0 N
     / 102° 42.2 E

3 March 1945
0700 Trim dive.

- 5 -

— page 219 —
U.S.S. SEALION - Report of FIFTH War Patrol (cont'd.)
3 March 1945 (cont'd.)

0717 Surfaced.
1020 Sighted drifting mine; closed and commenced firing small arms
     to destroy in position L 6° 21.0 N
     / 102° 55.5 E
1034 Plane contact #3; sighted by lookout, distance 10 miles. Dived.
1125 Surfaced; resumed surface patrol. The water in this area is
     filled with discolored water, debris and countless floating
     objects: bamboo, metal drums, bales of rubber, one mine and
     an adrift mooring buoy to date.
1200 Position L 6° 24.2 N
     / 102° 49.5 E

4 March 1945
1110 Plane contact #4; sighted by lookout, distance 12 miles. Dived
     in position L 6° 26.0 N
     / 102° 50.5 E
1155 Surfaced; resumed surface patrol.
1200 Position L 6°,27.3 N
     / 102° 43.9 E
2300 Rendezvoused with PAMPANITO and MINGO in position L 6° 31.0 N
     / 104° 31.0 E.
     Received new search instructions from Pack Commander.
2345 Set course 100° T for newly assigned area.

5 March 1945
0642 Arrived assigned sector; commenced surface patrol 100 miles
     off the east coast of the MALAY PENINSULA.
1200 Position L 6° 18.0 N
     / 105° 30.2 E
1545 Plane contact #5; lone "EMILY" sighted by lookout, distance
     8 miles, dived in position L 6° 16.0 N
     / 105° 22.0 E
1657 Surfaced; resumed surface patrol.

- 6 -

— page 220 —
U.S.S. SEALLION - Report of FIFTH War Patrol (cont'd.)

6 March 1945

1012    Plane contact #6; SD radar contact, 15 miles in position
        L 6° 23.4 N
        / 105° 15.0 E

1200    Position L 6° 22.0 N
        / 105° 18.5 E

1233    Plane contact #7; SD radar contact, 10 miles in position
        L 6° 23.5 N
        / 105° 23.8 E

1236    Sighted one "NELL" on northerly course, 9 miles.

1314    Plane contact #8; sighted one "EMILY", 8 miles in position
        L 6° 22.0 N
        / 105° 30.0 E
        Dived.

1356    Surfaced; resumed surface patrol.

7 March 1945

0850    Set course 259° T for scouting line normal to reported convoy
        track.

1200    Position L 6° 16.5 N
        / 106° 02.0 E

1529    Based on PINTADO'S contact report, changed course to 070° T
        and headed to intercept convoy track at 4-engine speed.

1614    Ship contact #4. Sighted smoke bearing 162° T, 15 miles from
        position L 6° 18.0 N
        / 105° 51.0 E.
        Sent out contact report to Pack and commenced tracking.

1706    Dived; continued approach submerged.

1740    Identified target as properly marked hospital ship, AWA MARU
        (the same LH contact of 1 March 1945). Target's 1800 position:
        L 6° 24.0 N
        / 106° 02.0 E;
        course 030° T, speed 10 knots.

1846    Surfaced; cleared area and sent amplifying report to Pack.
        Set course for rendezvous as directed by Pack Commander.

- 7 -

— page 221 —
U.S.S. SE:LION - Report of FIFTH War Patrol (cont'd.)

8 March 1945

0230 Rendezvoused with PALPINITO and received scouting instructions.
0248 Set course for initial point on scouting line.
0630 On station; commenced surface patrol along scouting line 100
      miles off the northeast coast of the MALAY PENINSULA as
      directed by Pack Commander.
1200 Position L 7° 17.8 N
      / 103° 48.1 E

9 March 1945

      Surface patrol at 7 knots speed off the northeast coast of
      MALAY PENINSULA.
1200 Position L 7° 06.9 N
      / 103° 52.0 E

10 March 1945

0655 Trim dive.
0718 Surfaced.
1200 Position L 6° 58.1 N
      / 104° 23.0 E
1225 Plane contact #9; SD radar contact, 8.5 miles. Dived in
      position L 6° 56.0 N
      / 104° 26.0 E
1400 Surfaced; resumed surface patrol.

11 March 1945

0820 Sighted two drifting mines in position L 7° 03.6 N
      / 104° 17.3 E
0825 Dived on false aircraft contact.
0840 Surfaced; closed mines and attempted to destroy with rifle
      fire.
0900 Plane contact #10; SD radar contact, 7 miles. Dived in
      position L 7° 03.5 N
      / 104° 17.0 E
0945 Surfaced; resumed surface patrol.

- 8 -

— page 222 —
U.S.S. ST.LION - Report of FIFTH War Patrol (cont'd.)
11 March 1945 (cont'd.)

1200 Position L 7° 16.8 N
     / 104° 01.0 E

1445 Plane contact #11; SD radar contact, 8 miles. Dived in position
     L 7° 27.0 N
     / 103° 35.0 E

1525 Surfaced; resumed surface patrol enroute new search sector.

2215 On station, northwest section of scouting line. Continued
     surface patrol in new area as directed by Pack Commander.

12 March 1945

     Surface patrol, 100 miles off northern coast of the MALAY
     PENINSULA.

1200 Position L 7° 46.5 N
     / 102° 58.8 E

13 March 1945

0705 Trim dive.

0723 Surfaced.

1200 Position L 7° 31.3 N
     / 103° 16.2 E

14 March 1945

0945 Set course for rendezvous designated by Pack Commander.

1200 Position L 7° 38.0 N
     / 102° 50.0 E

2000 Rendezvoused with PAMPANITO in position. L 6° 11.5 N
     / 103° 53.0 E
     and received new area assignments and instructions.

2015 Set course 165° T for new search area.

15 March 1945

0000 On station; commenced patrolling off the east coast of the
     MALAY PENINSULA north of PULO TENGGOL as directed by Pack
     Commander.

0655 Dived for the day. Conducted submerged patrol 45 miles north
     of PULO TENGGOL I.

     - 9 -

— page 223 —
U.S.S. SEALLION - Report of FIFTH War Patrol (cont'd.)

15 March 1945 (cont'd.)

1200 Position L 5° 18.5 N
          / 103° 52.0 E

1946 Surfaced. Resumed surface patrol, 15 miles north of PULO
     TENGGOL I.

16 March 1945

0656 Dived for the day; conducted submerged patrol 13 miles north-
     east of PULO TENGGOL I.

1200 Position L 5° 01.0 N
          / 103° 45.0 E

1946 Surfaced; set course for new search area in vicinity PULO
     KIPAS I. as directed by Pack Commander.

2000 Sighted loom of a powerful light on the beach, east coast of
     the MALAY PENINSULA in approximate position L 5° 00.0 N
                                                / 103° 20.0 E

2130 Light on the beach extinguished. (Possibly an aircraft
     beacon or Jap operated navigational aid for traffic hugging
     the coast.)

17 March 1945

0000 On station in new search area; commenced surface patrol nine
     miles off the east coast of the MALAY PENINSULA in the
     vicinity of PULO KIPAS I.

0230 SJ radar contact 176° T range 15,900 yards. (Ship contact #5)
     Position L 5° 18.0 N
          / 103° 23.0 E
     Stationed tracking party.

0315 I can't figure this one out. The target was a single ship,
     unescorted, on a steady course of 345° T and making 8.5
     knots. Faced with this unbelievable situation I imagined
     the target to be either a "Q" ship or an A/S vessel.

0325 Put the crew at battle stations.

0342 With plot and TDC checking nicely and the range about 5,000
     yards, headed in to attack. I still had no idea what the
     target was so set torpedo depth 3 feet and decided to shoot
     4 bow tubes at whatever turned up. It was very dark and
     the sea was smooth.

                               - 10 -

— page 224 —
U.S.S. SEALION - Report of FIFTH War Patrol (cont'd.)
17 March 1945 (cont'd.)

0345 With a range of 3500 yards could just make out a dark shape
     still unable to identify it. Checked setup with TBT bearings.

0348-37
     Slowed and commenced shooting four bow tubes - gyros 4° R -
     81° track 59° - 63° starboard, range 2000 yards - torpedo
     run 1650 yards, depth set three feet. The torpedoes ran true
     as observed by the bright phosphorescent track they made. At
     this time the target loomed up much larger - engines aft and
     very low in the water. Looked like loaded tanker.

0349 Turned away to put target astern. Binocular formula showed
     target to be about 425 feet long.

0349-40
     First torpedo was observed to hit just forward of midship
     and simultaneously the target blew up with a tremen-
     dous explosion. There was absolutely no interval between
     the torpedo hit and the explosion. Flames reached 500 feet
     in the air and lighted the area up like daylight. There was
     no longer any doubt as to what our target was now. Flames
     obscured everything forward of the bridge but the rest was
     clearly visible in the bright light. From the features made
     out after shooting, and the length of 425 feet obtained after shooting,
     the target was determined to be a large tanker similar to the
     SAN CLEMENTE MARU (page 284, ONI 208 J). A large, possibly
     5 inch, gun was observed on the poop deck. The instantaneous
     explosion, the force of the explosion, the brilliance and
     size of the flames, together with the lack of much black
     smoke, indicated that this tanker was undoubtedly loaded
     with gasoline.

0350 A periscope was raised and the crew was allowed to see with
     their own eyes - for the first time - the results of their
     combined efforts and patient but monotonous waiting.

0351 Commenced reload.

0352 Fire was still raging but stern was rising out of the water.
     Radar operator was completely baffled by the fact that the
     pip was getting larger instead of smaller.

0354 With the bow on the bottom the stern finally started to
     settle.

0355 Target completely disappeared from sight and from radar
     screen. Position L 5° 20.0 N
     / 103° 19.5 E
     in 18 fathoms of water.

- 11 -

— page 225 —
U.S.S. SEALION - Report of FIFTH War Patrol (cont'd.)

17 March 1945 (cont'd.)
0355 Range at time she sunk was 3500 yards. Fire on surface of
     water continued to rage.
0405 Resumed surface patrol at 6 knots, 15 miles northeast of
     PULO KAPAS I.
0518 Fire on water went out.
0647 Dived for submerged patrol 10 miles east of PULO KAPAS I.
     Celebrated Commanding Officer's birthday and St. Patrick's
     Day.
1200 Position L 5° 12.2 N
     / 103° 23.9 E
1946 Surfaced; commenced surface patrol at 6 knots 15 miles north-
     east of PULO KAPAS I.

18 March 1945
0651 Dived for the day; conducted submerged patrol 12.5 miles
     east of PULO KAPAS I.
1200 Position L 5° 12.5 N
     / 103° 28.0 E
1947 Surfaced; set course for new search area as directed by Pack
     Commander.
2103 Sent report of sinking to Pack Commander.

19 March 1945
0150 On station; conducted surface patrol at 9 knots 85 miles off
     the east coast of the MALAY PENINSULA.
1200 Position L 5° 41.0 N
     / 105° 03.0 E
2030 Rendezvoused with PAMPANITO in position L 5° 28.0 N
     / 104° 39.0 E
     Received instructions and new patrol assignment from Pack
     Commander.
2100 Set course 268° T for assigned search area.

20 March 1945
0525 On station 14 miles off east coast of the MALAY PENINSULA.

- 12 -

— page 226 —
U.S.S. SE LION - Report of FIFTH War Patrol (cont'd.)

20 March 1945 (cont'd.)

0645 Dived for the day; conducted submerged patrol 12.5 miles
     east of PULO KAPAS I.

1150 Plane contact #12; periscope sighted two north bound "BETTY"
     type bombers bearing 240° T, 8 miles from position:-
     L 5° 12.2 N
     / 103° 22.2 E

1200 Position L 5° 12.2 N
     / 103° 22.0 E

1945 Surfaced; conducted surface patrol at 6 knots 11 miles off
     the east coast of the MALAY PENINSULA.

21 March 1945

0539 Received orders for rendezvous from Pack Commander. Set
     course 057° T for position L 6° 00.0 N
     / 104° 30.0 E

0720 Sighted TAMPANITO. Received orders to form scouting line
     normal to base course 075° T.

0920 Aircraft contact #13; periscope sighted south bound "BETTY"
     type bomber bearing 050° T, 10 miles from position:-
     L 5° 30.5 N
     / 103° 59.0 E

1002 Resumed surface patrol on scouting line at 12 knots.

1200 Position L 5° 32.5 N
     / 104° 23.0 E

1338 Rendezvoused with TAMPANITO in position L 5° 43.5 N
     / 104° 34.0 E
     Exchanged information and received area assignment.

1343 Set course 258° T for vicinity PULO KAPAS I.

1623 Sighted drifting mine in position L 5° 38.5 N
     / 104° 09.5 E
     Sank mine with rifle fire.

1800 Sighted drifting mine in position L 5° 36.5 N
     / 104° 02.0 E
     Exploded mine with rifle fire.

2246 On station; conducted surface patrol at 6 knots, 10 miles off
     the east coast of the MALAY PENINSULA in the vicinity of
     PULO KAPAS I.

- 13 -

— page 227 —
U.S.S. SEALLION - Report of FIFTH War Patrol (cont'd.)

22 March 1945
0347 Received instructions from Pack Commander to shift area to
     vicinity L 7° 30.0 N
     / 104° E.
     Set course 015° T for new area.
1200 Position L 6° 42.5 N
     / 103° 54.6 E
1236 Sighted drifting mine in position L 6° 50.0 N
     / 103° 57.0 E
     Sank mine with rifle fire.
1643 On station 75 miles off the southern tip of FRENCH INDO-CHINA.
1800 Set course 180° T for vicinity TULO TENGGOL I. as directed
     by Pack Commander.

23 March 1945
0500 On station, conducting surface patrol at 10 knots 52 miles
     north of TULO TENGGOL.
0655 Dived for the day; conducted submerged patrol 33 miles north
     of TULO TENGGOL.
1200 Position L 5° 08.0 N
     / 103° 48.4 E
1938 Surfaced; conducted surface patrol at 10 knots 17 miles north
     of TULO TENGGOL.

24 March 1945
0650 Dived for the day; conducted submerged patrol 18 miles north
     of TULO TENGGOL.
1200 Position L 5° 06.2 N
     / 103° 56.5 E
1930 Surfaced; conducted surface patrol at 6 knots 11 miles off
     the east coast of the MALAY PENINSULA.
2000 TULLIBEE departed area; CALAMAR assumed O.T.C. duties of Pack.
2135 Received orders from C.T.F. 71 to depart area and proceed to
     base at dark 1 April 1945.

- 14 -

— page 228 —
U.S.S. SEALION - Report of FIFTH War Patrol (cont'd.)

25 March 1945
0644 Dived for the day; conducted submerged patrol 6 miles east
     of PULO KAPAS.
1200 Position L 5° 16.0 N
     / 103° 22.5 E
1935 Surfaced; conducted surface patrol at 6 knots 8 miles off
     the east coast of the MALAY PENINSULA.

26 March 1945
0645 Dived for the day; conducted submerged patrol 6 miles east
     of PULO KAPAS.
1200 Position L 5° 15.0 N
     / 103° 22.2 E
1938 Surfaced; conducted surface patrol at 9 knots 8 miles off
     the east coast of the MALAY PENINSULA.
2200 Received orders from C.T.F. 71 to proceed to lifeguard
     station off SAIGON. Set course for assigned station at 15
     knots.

27 March 1945
     Enroute lifeguard station.
1200 Position L 6° 49.5 N
     / 106° 22.0 E

28 March 1945
     Enroute lifeguard station.
0634 Trim dive.
0652 Surfaced; conducted surface patrol at 10 knots in vicinity of
     lifeguard station 120 miles off SAIGON.
1200 Position L 8° 47.5 N
     / 108° 20.0 E
2200 On lifeguard station in position L 9° 00.0 N
     / 108° 00.0 E
     as directed by C.T.F. 71.

29 March 1945
     On lifeguard station.

     - 15 -

— page 229 —
U.S.S. SEALION - Report of FIFTH War Patrol (cont'd.)
29 March 1945 (cont'd.)

0730 Lifeguard duties completed. Set course 205° T at 12 knots
     for regularly assigned patrol area.
1200 Position L 8° 01.3 N
     / 107° 41.0 E
2134 Received orders from Pack Commander to patrol area off the
     southern tip of FRENCH INDO-CHINA. Set course 320° T for
     new area.

30 March 1945

0643 On station. Dived for the day conducted submerged patrol
     60 miles southeast of PULO OBI.
1200 Position L 7° 38.8 N
     / 105° 17.0 E
1320 SEALION chalked up 1000th hour submerged since commissioning.
1921 Surfaced; conducted surface patrol at 9 knots 45 miles off
     the southern tip of FRENCH INDO-CHINA.

31 March 1945

0643 Dived for the day; conducted submerged patrol 39 miles south
     of PULO OBI.
1200 Position L 7° 38.5 N
     / 105° 11.7 E
1924 Surfaced; conducted surface patrol at 9 knots 60 miles off
     the southern coast of FRENCH INDO-CHINA.

1 April 1945 - EASTER SUNDAY

0647 Dived for the day; conducted submerged patrol 65 miles south-
     east of PULO OBI.
0800 (H) - 0900 (I)
     Set clocks ahead one hour to conform with zone -9 time in
     accordance with C.T.F. 71 directive.

ALL TIMES HEREAFTER WILL BE ITEM (-9 ZONE TIME).

1200 Position L 7° 25.2 N
     / 105° 27.2 E

- 16 -

— page 230 —
U.S.S. SEALION - Report of FIFTH War Patrol (cont'd.)

1 April 1945 (cont'd.)

1800 Carried out security directive in accordance with Commander
     Submarines, SEVENTH Fleet conf. ltr. FE24-71/L13-1 of 2
     February 1945.

1930 Sighted CAIMAN bearing 279° T, 14,000 yards from position
     L 7° 25.0 N
     λ 105° 38.0 E
     headed east.

2025 Surfaced; set course 070° to clear area.

2100 Rendezvoused with CAIMAN in position L 7° 26.0 N
                                         λ 105° 43.0 E
     Exchanged information.

2110 Received orders from C.T.F. 71 to rendezvous with GUAVINA to
     take aboard rescued aviators for transportation SUBIC. Set
     course for rendezvous.

2 April 1945

0330 Possible SJ radar contact bearing 199° T, 34,000 yards from
     position L 8° 00.5 N
              λ 107° 27.0 E
     Commenced tracking and maneuvered to close range at 18 knots.
     Sent contact report to CAIMAN

0412 After a half hour of weak intermittent radar pips finally
     lost contact completely. Continued search.

0421 Picked up CAIMAN on SJ radar and sent amplifying report of
     undeveloped contact.

0435 Broke off search; set course for rendezvous at 17 knots.

1148 Plane contact #14. SD radar contact, 12 miles. Position
     L 8° 44.0 N
     λ 109° 09.0 E
     Did not close; lost contact at 14 miles.

1200 Position L 8° 46.5 N
              λ 109° 12.5 E

1743 Sighted rubber lifeboat in high periscope - distance 5 miles.
     Closed to invetigate.

1800 Closed boat and discovered one downed U.S. Army flyer.
     Position L 8° 47.0 N
              λ 109° 53.0 E

- 17 -

— page 231 —
.S.S. SEALLION - Report of FIFTH War Patrol (cont'd.)
2 April 1945 (cont'd.)
1807 Flyer and boat brought aboard; Set course for rendezvous with
     GUAVINA at 17 knots. Identified rescued flyer as:
          Sergeant BAUDUY ROBERT GRIER,
          U.S. Army Air Force, Ser. No. 32954647
          5th Bomber Command
          345th Bomb Group
          498th Bomb Squadron
     picked up after 23 days at sea in a rubber boat. A thorough
     medical examination showed GRIER to be in fair shape phy-
     sically. Loss of weight (estimated 40 lbs.) was the only
     apparent sign of his exposure.
2234 Exchanged recognition signals and calls with U.S.S. GUAVINA.
2315 Rendezvoused with GUAVINA in position L 11° 14.0 N
                                        / 110° 07.0 E
2350 Received aboard three Army Air Force officers and two enlisted
     men from GUAVINA for transportation to SUBIC after their
     rescue at sea by the GUAVINA.

3 April 1945
0010 Completed rendezvous; set course 070° T to clear area.
0215 Sent SEALLION'S #1 to C.T.F. 71.
0538 Exchanged recognition signals and calls with U.S.S. CROAKER
     in position L 11° 35.0 N
                / 111° 00.0 E
0721 Trim dive.
0742 Surfaced.
1200 Position L 12° 06.1 N
             / 112° 10.4 E
1213 Plane contact #15; SD radar contact, 12 miles closed rapidly
     to 6 miles, but not sighted. Dived in position L 12° 07.0 N
                                                / 112° 09.0 E
1327 Plane contact #16; sighted UNIDENT distance 6 miles, coming
     in northwesterly course. Dived in position L 12° 09 N
                                                / 112° 21.8 E

4 April 1945
0757 Plane contact #17; sighted UNIDENT coming in, distance 8
     miles, course southeasterly. Dived in position L 13° 49.0 N
                                                / 112° 37.0 E
                               - 18 -

— page 232 —
U.S.S. SEALION - Roport of FIFTH War Patrol (cont'd.)

4 April 1945 (cont'd.)

0843 Surfaced.
1047 Plano contact #18; sighted UNIDENT, distanco 8 miles,
     comming in, course northerly. Dived in position:
     L 13° 18.2 N
     λ 112° 36.5 E
1125 Surfaced.
1200 Position L 13° 09.2 N
     λ 112° 36.0 E

5 April 1945

0340 Exchanged recognition sigmals and calls with U.S.S. CAIMAN
     in position: L 14° 19.5 N
     λ 113° 34.5 E
0700 Entered wostern limit of Joint Zone.
0803 Plano contact #19; SD radar contact, distanco 10 milcs; did
     not close. Position: L 14° 38.0 N
     λ 114° 15.0 E
0810 Sighted U.S.S. HAMMERHEAD bearing 296° T, 8 miles from
     position: L 14° 39.8 N
     λ 114° 19.0 E
0917 Plano contact #20; sighted ono U.S. Navy PBM, distanco 8
     miles; coming in on a northerly course. Position:
     L 14° 37.2 N
     λ 115° 35.0 E
1140 Plano contact #21; sighted ono UNIDENT hoaded east, distanco
     10 miles. Did not close. Position: L 14° 36.3 N
     λ 115° 02.0 E
1200 Position L 14° 36.4 N
     λ 115° 06.7 E
1520 Plano contact #22; SD radar contact (and IFF); Sighted ono
     U.S. Navy PB2Y, distanco 22 milcs; did not close. Lost
     contact at 25 milcs. Position L 14° 38.5 N
     λ 115° 43.5 E

6 April 1945

0630 Rendezvoused with U.S.S. WILLETT (DE354) in company with
     CAIMAN and HAMMERHEAD in position: L 14° 43.0 N
     λ 119° 10.0 E
     Proceeded to SUBIC.

- 19 -

— page 233 —
U.S.S. SEALION - Report of FIFTH War Patrol (cont'd.)
6 April 1945 (cont'd.)

1030 Conducted sound tests.
1330 Moored alongside U.S.S. HOWARD W. GILMORE, SUBIC BAY,
     LUZON, P.I.

- 19 A -

— page 234 —
U.S.S. SE.LION - Report of FIFTH War Patrol (cont'd.)

(c) WEATHER:
     The weather throughout the patrol was normal for the area
     during the northeast monsoon.

(D) TIDAL INFORMATION:

TIME        : LATS        : LONG        : SET     : DRIFT     : REMARKS
:::::
0000 -      : 5° 20 S :   : 114° 30 E: : 100° T: : 0.9 kts.  : JAVA SEA
2300        : 3° 20 S :   : 109° 30 E: :         :           :
26 Feb.     :
0800 -      : 2° 10 S :   : 109° 00 E: : 150° T: : 1.0 kts.  : KARIMATA
2000        : 1° 50 S :   : 108° 30 E: :         :           : STRAIT
27 Feb.     :
2000/28     : 2° 00 N :   : 107° 00 E: : 175° T: : 0.4 kts.  : N.W. OF
2000/1      : 6° 00 N :   : 104° 40 E: :         :           : ANAMBAS
March       :             :             :         :           : IS.
:::::
2000/26     : 5° 30 N :   : 103° 30 E: : 260° T: : 1.2 kts.  : EASTERN PART
2000/28     : 9° 00 N :   : 108° 30 E: :         :           : S. CHIN. SEA
March       :             :             :         :           :

2 - 4 March 1945
Off the northeast coast of the MALAY PENINSULA between:

     Lats 6° N - 6° 30 N and
     Longs 102° 30 E - 104° E

          Average SET - 165° T
          Average DRIFT - 0.7 kts.

5 - 7 March 1945
Off the east coast of the MALAY PENINSULA between:

     Lats 6° N - 6° 30 N and
     Longs 105° E - 106° 30 E

          Average SET - 250° T
          Average DRIFT - 0.6 kts.

8 - 14 March 1945
Between FRENCH INDO-CHINA and the MALAY PENINSULA between:

     Lats 6° 45 N - 7° 30 N and
     Longs 102° 30 E - 104° 30 E

                                  - 20 -

— page 235 —
U.S.S. SE.LION - Report of FIFTH War Patrol (cont'd.)

(D) TIDAL INFORMATION (cont'd.)

| 0100-1300       | 1300-0100       |
| :| :|
| Average SET 270° T | 170° T          |
| Average DRIFT 1.0 kts. | 1.0 kts.        |

16 - 26 March 1945

In the vicinity of PULO K.P.S I. the current followed the coast
line of the MALAY PENINSULA.

| Between       | Lats 5° N - 5° 30 N     |
| :| :|
|               | Longs 103° 15 E - 103° 45 E |
|               | 08-12   | 12-20   | 20-08   |
| Average SET   | 270° T  | 157° T. | 170° T  |
| Average DRIFT | 1.1 kts. | 1.1 kts. | 1.1 kts. |

(E) NAVIGATIONAL AIDS

On the night of February 27, 1945 SERUTU I. light was
sighted in charted position but unlighted.

No other aids to navigation were sighted.

(F) SHIP CONTACTS

| No.: | Time    | Lat.        | Typo: | Initial: Range | Est. Course: | How: | Remarks   |
| :--- | :------ | :| :---- | :| :| :--- | :|
|      | Date    | Long.       |       |                | Speed        |      | Cont'd    |
| 1.   | 1300(H) | 5° 50.9 S   | SS    | 3500 yds       |              | SD   | Sighted   |
|      | 25 Feb. | 116° 41.3E  |       |                |              |      | peris.    |
|      |         |             |       |                |              |      | only      |
|      |         |             |       |                |              |      | manouv.   |
|      |         |             |       |                |              |      | to avoid  |
| 2.   | 1045(H) | 4° 42.0 S   | fish: | 14,000 yds     |              | SD   | Invest.   |
|      | 26 Feb. | 112° 18.0 E | vess: |                |              |      | friendly  |
|      |         |             |       |                |              |      | natives   |
| 3.   | 1128(H) | 5° 49 N     | AH    | 28,000 yds.    | 203°         | SD   | Submerged |
|      | 1 March | 106° 4 E    |       |                | 6.2 kts.     |      | took peri. |
|      |         |             |       |                |              |      | photo.    |
|      |         |             |       |                |              |      | Ident.    |
|      |         |             |       |                |              |      | as AW.    |
|      |         |             |       |                |              |      | HURU      |
| 4.   | 1614(H) | 6° 19 N     | AH    | 30,000 yds.    | 030°         | P    | Ident.    |
|      | 7 March | 105° 51 E   |       |                | 10 kts.      |      | as AW.    |
|      |         |             |       |                |              |      | HURU      |
|      |         |             |       |                |              |      | again     |
| 5.   | 0230(H) | 5° 18 N     | LO    | 15,900 yds.    | 345° T       | R    | SINK      |
|      | 17 Mar. | 103° 23 E   |       |                | 8.5 kts.     |      |           |

- 21 -

— page 236 —
U.S.S. SEALION - Report of FIFTH War Patrol (cont'd.)

(G) AIRCRAFT CONTACTS

     In the area there were thirteen (13) plane contacts on
this patrol; seven (7) by sighting and six (6) by SD radar.
     We had one (1) radar contact in the vicinity of the
ANAMBAS ISLANDS while enroute to area; all other contacts
occurred on station.
     The air traffic in general followed a two-way northeast -
southwest route on a straight SINGAPORE - SAIGON line.
     No offensive aircraft action was encountered.

     TYPE SIGHTED                               NUMBER

     EMILY                                      2
     MAVIS                                      1
     NELL                                       1
     * BETTY                                    3
     UNIDENT (fighter)                          1

     * One contact consisted of 2 BETTY'S.
     Enroute from Joint Zone to Joint Zone: five (5) aircraft contacts
(UNIDENTS), 3 sighted and 2 SD radar contact.

     In joint zone prior to rendezvous with escort: four (4)
contacts, two sighted and two radar (one answered IFF)

- 22 -

— page 237 —
U.S.S. SEALLION - Report of FIFTH War Patrol (cont'd.)
(E) ATTACK DATA

TORPEDO ATTACK - NUMBER ONE

U.S.S. SEALLION: Torpedo attack No. ONE: Patrol No. FIVE
Time: 0349(H): Date: 17 March 1945: Lat. 05° 18' N. Long. 103° 23' E.

TARGET DATA - DAMAGE INFLICTED

Description: Single ship, Tanker, similar to S.N CLEMENTE MARU,
(Page 284, ONI 208-J), unescorted on steady course at
8.5 knots. Contact made by SJ radar at range of
15,900 yards on dark night with maximum visibility 3500
yards. Target identified by Captain and Executive Officer
and O.O.D. observing profile at range of 2000 yards,
and by seeing entire shape of target as its cargo of
gasoline exploded.
S.N CLEMENTE MARU - M.O. - Page 284, ONI 208-J (EU).
Ships Sunk: 1
Ships Damaged: or
Probably Sunk: None
Damage Determined:
by: Saw, heard, and felt one timed torpedo hit. Coincident
with hit the entire target blew up, sending flames
500 feet into the air. Target observed from bridge
to sink six minutes after firing. Range at that time
3500 yards.
Target Draft: 28' - 6" Course 345° T. Speed: 8.5 kts. Range: 2000 yds
(at firing)

OWN SHIP DATA

Speed: 11 kts. Course 220° T. Depth: Surface. Angle: 0° (at firing)

FIRE CONTROL AND TORPEDO DATA

Type Attack: Night Radar - Bow Tubes - T.B.T. Firing Bearings.

| | 6 | 5 | 4 | 3 |
|:|:------|:------|:------|:------|
| Tubes Fired: | 59 S | 63½ S | 59 S | 63½ S |
| Track Angle: | 4 R | 8.5 R | 4 R | 8.5 R |
| Gyro Angle: | 3 ft. | 3 ft. | 3 ft. | 3 ft. |
| Depth Set: | --- | --- | --- | --- |
| Power: | HIT | Miss | Miss | Miss |
| Hit or Miss: | No | No | No | No |
| Erratic: | 23 | 23 | 23 | 23 |
| Mk. Torpedo: | 50439 | 50170 | 65915 | 66033 |
| Serial No.: | 6-5 | 6-5 | 6-5 | 6-5 |
| Mk. Exploder: | 19694 | 4982 | 27030 | 26986 |
| Serial No: | Contact | Contact | Contact | Contact |
| Actuation Set: | Contact | --- | --- | --- |
| Actuation Actual: | 16-1 | 16-1 | 16-1 | 16-1 |
| Mk. Warhead: | | | | |

- 23 -

— page 238 —
U.S.S. SEALLION - Report of FIFTH War Patrol (cont'd.)
(H) ATTACK DATA (cont'd.)

FIRE CONTROL AND TORPEDO DATA

Serial No: 16661 16623 - -
Explosive: TPX TPX TPX TPX
Firing Interval: 8 sec. 8 sec. 8 sec.
Type Spread: 3° Divergent.
Sea Condition: State ONE.
Overhaul Activity: USS ANTHEDON SRU NAVY 137 SRU NAVY 137
Remarks: Target exploded immediately on being hit, and
sunk six minutes later. All torpedoes were
observed from the bridge to run Hot, Straight,
and Normal. The depth setting of 3 feet was
used because the type of target was not deter-
mined until after firing. The gasoline explosion
following the one torpedo hit was of such
violence it broke the target in two.

(I) MINES:

Numerous floating mines were sighted during this patrol.
Every attempt was made to destroy all mines encountered. A
half a dozen hits in a mine was usually sufficient for it to
flood and sink. Average time required to sink a mine 51 min.
All mines sighted were rusty and covered with sea growth and
are classified as Type 83 (O.P. 898, Mine Identification
Manual). Mines were sighted in the following positions:

#1 6° 21.0 N Dived for aircraft while firing at this
102° 55.5 E one.

#2 & 3 7° 03.6 N Dived for aircraft while firing at these
104° 17.3 E two.

#4 5° 38.5 N Sank with rifle fire.
104° 09.5 E

#5 5° 36.5 N Exploded with rifle fire.
104° 02.0 E

#6 6° 50.0 N Sank with rifle fire.
103° 57.0 E

(J) ANTI-SUBMARINE MEASURES:

No anti-submarine measures were encountered during this
patrol.

- 24 -

— page 239 —
U.S.S. SEALLION - Report of FIFTH War Patrol (cont'd.)

(K) MAJOR DEFECTS AND DAMAGE

On 14 March 1945 secured #2 air conditioning unit compressor
because of excessive leakage around forward main bearing, drop
in gas pressure and noise in drive motor bearing. Inspection
showed forward main bearing wiped. No spare carried aboard.
Bearing and journal were cleaned of excessive metal and
dressed on unit re-assembled. The armature shaft at drive
end of motor was found to be .018" undersize. This was
remedied by building up shaft with shim stock, heating ball
bearing in oil and pressing it back on shaft. The air condition-
ing unit was placed back in service but run at a reduced speed.

This unit is a re-conditioned unit installed by Submarine
DIVISION TWO HUNDRED SIXTY-ONE Relief Crew.

(L) RADIO

All radio equipment was in perfect operational order through-
out the patrol.

Bakers: "Bakers" schedule was received satisfactorily.
Reception was generally reliable although it was noted that
the signal strength decreased between the hours of 0400(H)
and 0600(H). On several occasions interference from stations
near the patrol area was very heavy. 12465 Kcs were used to
receive this schedule in the daytime; 9250 Kcs were used at
night.

China Broadcasts: Conditions were normal and reception was
found to be very good.

Wolf-Pack: Inter-ship communications were very reliable. It
was noted that certain stations used excessive tuning while
shifting frequencies. On a few occasions long (five letter
group) messages were sent on these frequencies occupying the
circuit for as much as an hour at a time. Japs were noted
to be using these frequencies.

Jamming: There was no evidence of jamming on these channels.

(M) RADAR

1. SJ Radar - After refit and during the initial two weeks
of this patrol the SJ required a great deal of work on the
part of the ships radar technicians before satisfactory
performance was achieved. After this, the results were
excellent. An approved modification carried out by the
relief crew during our last refit required that the head-
set phones used in SJ communication be tapped off the plate of
V7 (6AG7) in the Range Indicator unit. This modification
produced unsatisfactory performance and the tap off was
shifted back to the cathode of V7 between R48 and R48...

- 25 -

— page 240 —
U.S.S. SEALLION - Report of FIFTH War Patrol (cont'd.)

(M) RADAR (cont'd.)

Performance was then satisfactory.

.2 SD RADAR

No comment.

(N) SONAR AND SOUND CONDITIONS

Operation was normal at all times. No unusual sound conditions
were encountered.

(O) DENSITY LAYERS

No density layers were encountered due to shallow water in area.

(P) HEALTH, FOOD, AND HABITABILITY

The health of the crew was excellent with the exception
of one case of gonorrhea which incapacitated one man for 34
days of the patrol. This case did not respond to sulfathiazole
therapy or sulfadiazine. It is strongly recommended that
submarines going on patrol be supplied with penicillin.
The food was adequate and well prepared but was lacking
in variety. Ham, chicken, canned peaches and pears plus
twenty other staple items were not available when the ship
was provisioned from N.S.D. Navy #137. Also much valuable
ice box space was taken up with beef that was not boned.
Except for one day when #2 air - conditioning unit was
being repaired the boat was cool and comfortable at all times.

(Q) PERSONNEL

a. Number of men detached after previous patrol: 18
b. Number of men on board during patrol: 76
c. Number of men qualified at start of patrol: 59
d. Number of men qualified at end of patrol: 71
e. Number of unqualified men making their first patrol: 11

The performance of duty by all hands, officers and men,
was of the highest standards and left nothing to be desired.
It was particularly gratifying to note the interest and
enthusiasm displayed by the new men in the regular "School
of the Boat" sessions. These new men were of a particularly
high caliber and will prove themselves a credit to the
submarine service.

Average age of Officers 28
Average age of Chief Petty Officers 28
Average age of crew 22
Average age of all hands 23

- 26 -

— page 241 —
U.S.S. SEALION - Report of FIFTH War Patrol (cont'd.)

(R) MILES STELLED - FUEL USED
    FREMANTLE to Area 1641 miles; 17,570 gals.
    In Area 7280 miles; 57,862 gals.
    Area to SUBIC 1474 miles; 17,400 gals.
    Total: 10395

(S) DURATION
    Days Enroute to Area 5½ days
    Days in Area 35 days
    Days Enroute to SUBIC 4½ days
    Days Submerged 14 days

(T) FACTORS OF ENDURANCE REMAINING
                 Torpedoes      Fuel         Provisions    Personnel Factor
                 18             31,400 gals  10 days       20 days

    LIMITING FACTOR THIS PATROL:- C.T.F. 71 dispatch.

(U) COMMUNICATIONS, RADAR, AND SONAR COUNTERMEASURES
    No communications or sonar countermeasures undertaken or
    encountered.

                         Radar Countermeasures

    The following contacts were obtained on the APR & SR...
    1.  a. Date: 24 February 1945
        b. Time: 2310
        c. Position L 9° - 4' / 115° - 40' In vicinity of
           LOMBOK STRAIT.
        d. Frequency: 173 M.C.
        e. PRF: 850
        f. Pulse Width: 5 micro-sec.
        g. Pulse Shape:
        h. Type: Land based air search.
        i. Sweep Rate: One sweep every 2 minutes.

    2.  a. Date: 25 February 1945
        b. Time: 0500
        c. Position: L 7° - 34' / 116° 24'
        d. Frequency: 82 M.C.
        e. PRF: 250
        f. Pulse Width: 2 micro-sec.
        g. Pulse Shape:

- 27 -

— page 242 —
U.S.S. SE.LION - Report of FIFTH War Patrol (cont'd.)
(U) COMMUNICATIONS, RADAR, AND SONAR COUNTERMEASURES (cont'd.)

                                        Radar Countermeasures

        h.    Type: Land based air search.
        i.    Swoop Rate: Indefinite.

                                        Jamming

        No radar jamming was encountered.

(V) REMARKS

        The Executive Officer, Lieut-Comdr. E. R. HOLT, Jr., USN.
is to be commended for his untiring efforts in arousing the
keen interest of all senior Lieutenants and junior quarter-
masters in the art of navigation. Each Lieutenant was teamed
with a quartermaster and each team in turn would complete a
days work. Should every boat adopt a similar policy it is
believed the submarine service would benefit greatly in a
short period of time.

                                        - 28 -

— page 243 —
SUBMARINE SQUADRON TWENTY-TWO

Care of Fleet Post Office,
San Francisco, California,
7 March 1945.

20-22/16-3
Ser: 1: 00
S-E-C-R-E-T

FIRST ENDORSEMENT to
U.S.S. SEALION (SS315)-
Report of Fifth War Patrol.

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

Subject: U.S.S. SEALION - Report of Fifth War Patrol.

1. The fifth war patrol of the U.S.S. SEALION was conducted off the
East Coast of the MALAY PENINSULA and in the GULF OF SIAM and covered a period
of forty-seven (47) days of which thirty-five (35) were spent in assigned areas.
U.S.S. SEALION (SS315), U.S.S. MINGO (SS261) and U.S.S. PAMPANITO (SS383), with
Commanding Officer PAMPANITO as Officer in Tactical Command, formed a Coordinated
Attack Group. Later this group was dissolved and SEALION joined U.S.S. CAIMAN
(SS323) in forming another Attack Group with Commanding Officer CAIMAN as Officer
in Tactical Command.

2. In spite of thorough area coverage and close in-shore patrol
few targets were encountered. The patrol was unique in that only thirteen (13)
plane contacts were made and also in the lack of enemy anti-submarine measures
in the area. Six (6) mines were sighted of which three (3) were exploded or
sunk with rifle fire.

3. LOMBOK and KARIMATA STRAITS were transitted without incident. A
properly marked hospital ship, the AWA MARU, was encountered on 1 March bound
South and again on 7 March heading northward.

4. In the early morning of 17 March SEALION made radar contact on a
target which was later identified as a large gasoline-loaded tanker of the SAN
CLEMENTE MARU Class. She was proceeding northward along the coast at slow speed
steering a straight course and was unescorted. The Commanding Officer SEALION
made a surface approach in a flat sea aided by a black night and in 18 fathoms
of water, fired four Mk 23 torpedoes from the bow tubes at a range of 2,000
yards. The first torpedo hit and the tanker was seen to explode and burn and it
sank in six minutes.

SUNK

1 Large Tanker (similar to SAN CLEMENTE MARU Class)(EU) - 10,000 tons.

It was an interesting experience to sit in SEALION'S wardroom and listen to the
actual attack as it was reproduced by the wire recording.

-1-

— page 244 —
C5-22/A16-3
Serial: 050
C-O-N-F-I-D-E-N-T-I-A-L

SUBMARINE SQUADRON TWENTY-TWO

7 April 1945.

FIRST ENDORSEMENT to
U.S.S. SEALLION (SS315)-
Report of Fifth War Patrol.

Subject: U.S.S. SEALLION - Report of Fifth War Patrol.

— page 245 —
FE24-71/A16-3                                                              14/hr
                                UNITED STATES NAVY
Serial 0732
                                                                23 April 1945
C-O-N-F-I-D-E-N-T-I-A-L

SECOND ENDORSEMENT to:
Conf. Lt.
USS SEALION (SS315)
A16-3 Serial 011-45 dated
6 April, 1945. Report of
Fifth War Patrol.

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

Subject:        U.S.S. SEALION - Report of Fifth War Patrol -
                Comment on.

                1.      The Fifth War Patrol of the SEALION, under the
command of Lieutenant Commander C. F. PUTNAM, USN, was conducted
in the SOUTH CHINA SEA, off the coast of MALAYA. During this
period, SEALION was one of a Coordinated Group consisting of
PAMPANITO (OTC), MINGO and SEALION.

                2.      On 17 March, SEALION had the most unusual and
gratifying experience of making contact upon and attacking an
unescorted large maru. This very bizarre situation aroused the
suspicions of the Commanding Officer and, believing that his tar-
get must be a shallow draft decoy-vessel, he set torpedoes on three
feet depth. The first torpedo hit just forward of the midship
island and possibly as a result of the increased incendiary effect
of shallow depth setting, the target was observed to instantly
blow up with a tremendous explosion which wrecked the vessel and
caused it to sink within six minutes. In the illumination of the
fire, the target was identified as an AO similar to SAN CLEMENTE
Maru.

                3.      On 2 April, SEALION rescued one aviator who had been
adrift for twenty three days in a rubber lifeboat. A thorough medi-
cal examination showed Sergeant P. R. GRIER, U.S. Army to be in fair
shape except for the loss of forty (40) pounds weight. On the same
day three rescued aviators were received from GUAVINA and returned
to SUBIC BAY.

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

                5.      The Force Commander congratulates the Commanding
Officer, Officers and Crew of the SEALION upon the completion of
this patrol and for continuing their record of sinking every worth-
while target sighted. The following damage is assessed:

                                - 1 -

— page 246 —
5 04634
14/hr

FE24-71/A16-3
UNITED STATES NAVY
Serial 0732
25 April 1945
C-O-N-F-I-D-E-N-T-I-A-L

SECOND INDORSEMENT to:
USS SEALION Conf Ltr.
A16-3, Serial 011-45 dated
6 April, 1945. Report of
Fifth War Patrol.

Subject: U.S.S. SEALION - Report of Fifth War Patrol -
Comment on.

S-U-N-K
1 AO (similar SAN CLEMENTE MARU) (EC) 7,307 Tons.

[SIGNATURE: James Fife]
JAMES FIFE.
ORIGINAL COPY.

DISTRIBUTION
Cominch (3) | (3) Direct | ComSubRon-23 (2)
Vice Opnav (2) | (2) Direct | ComSubRon-30 (2)
Vice Opnav Op-23c (1) | ComSubRon-22 (1 each)
ComlstFlt (1) | DivComSubRon-22 (1 each)
Com2ndFlt (1) | DivComSubRon-26 (1 each)
Com7thFlt (2) | DivComSubRon-30 (1 each)
ComSubslstFlt (30) | S/M School, N.L. Conn. (2)
ComSubs2ndFlt (4) | Comdt. NYD, Puget Sound (2)
CTF-71 (7) | SubDiv, Mare Island (1)
CTG-71.5 (2) | S/Ms 7thFlt (1)
CTG-71.8 (2)

[HANDWRITTEN: J. D. Miller]
J. D. MILLER.
Flag Secretary.

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

- 2 -

— page 247 —
Reg. No. [HANDWRITTEN: F-267]
R. S. No. [HANDWRITTEN: 5 04634]

UNITED STATES FLEET
COMMANDER SEVENTH FLEET

A16-3(8)(F-3-o/whr)
Serial 02767

[HANDWRITTEN: 12 MAY 1945]

CONFIDENTIAL
THIRD ENDORSEMENT on:
USS SEALION Conf. Ltr.,
serial 011-45 dated 6
April 1945.

From: Commander Seventh Fleet.
To: Commander in Chief, United States Fleet.
Subject: U.S.S. SEALION - Report of Fifth War Patrol.

1. Forwarded.

2. The Commander Seventh Fleet congratulates the
SEALION for the damage inflicted on the enemy.

[SIGNATURE: D. E. Barbey]
D. E. BARBEY

Copy to:
ComSubs,7thFlt
ComSubRon 22
U.S.S. SEALION (SS315)

[HANDWRITTEN: R+L]
[HANDWRITTEN: lurs]

[HANDWRITTEN: 5-0158]

— page 248 —
SS 315/A16-3/WFO
Serial ( 019-45 )

U.S.S. SEALION (SS315)

c/o Fleet Post Office,
San Francisco, Calif.

6 July 1945
C-0 [STAMP: DECLASSIFIED ART. 0445, OPNAVINST 5510.1C]
[STAMP: DECLASSIFIED -A-L] [HANDWRITTEN: BY 090915K DATE 1/5/77]

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

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

Enclosures: (A) Subject Report.
(B) Track Chart for ComSubPac.

1. Enclosure (A), covering the SIXTH War Patrol of
this vessel, conducted in the Northern part of the SOUTH CHINA SEA,
off HONGKONG, and enroute PEARL HARBOR including short patrol off
WAKE ISLAND during the period 30 April to 6 July 1945, is forwarded
herewith.

C. F. PUTMAN.

[HANDWRITTEN: FILMED]
[HANDWRITTEN: 133521]

— page 249 —
U.S.S. SEALION - Report of SIXTH War Patrol

(A) PROLOGUE:

The U.S.S. SEALION arrived SUBIC BAY, LUZON, PHILIPPINE ISLANDS
for refit on 6 April 1945 on completion of her FIFTH War Patrol.
Refit was completed by U.S.S. HOWARD W. GILMORE and Submarine
Division TWO HUNDRED TWENTY-TWO Relief Crew on 20 April 1945.
The following major work items were accomplished:

1. Installation of Ward-Leonard hydrogen banner panels.
2. Installation of Loran gear.
3. Installation of one ION exchanger in each battery.

On 15 April 1945 Lieut-Comdr. Edward R. HOLT, Jr., U.S.N. was
detached. On 17 April 1945 Lieutenant Joseph F. RYAN, U.S.N.
was detached. On 21 April 1945 Lieutenant Jesse A. NAYLOR,
U.S.N. and Ensign Marvin L. REEVES, D(L), USNR. reported aboard
for duty. On 24 April 1945 Lieutenant Richard J. JACKSON, (DE),
USNR. reported aboard for duty and Lieutenant Clayton E.
BRELSFORD, (D), USNR. was detached.

Post repair trials, sound tests and training exercises were
conducted from 21 April 1945 to 29 April 1945. One day add-
itional training was granted due to three new officers.
SEALION ready for sea on 30 April 1945 carrying 16 Mk. 14-3A
torpedoes forward and six Mk. 18-2 and three Mk. 27 aft.

(B) NARRATIVE:

1. OFFICERS ON BOARD                               PREVIOUS PATROLS

Lieut-Comdr. Charles F. PUTMAN, USN.                       9
Lieutenant Richard J. JACKSON, (DE), USNR.                 6
Lieutenant Jesse A. NAYLOR, USN.                           0
Lieutenant Harold H. HAGEN, USN.                           5
Lieut. (jg) Wayne E. BROWNELL, (L), USNR.                  2
Lieut. (jg) Frederick S. HOLT, (D)E(T), USNR.              4
Lieut. (jg) Daniel P. BROOKS, USN.                         5
Lieut. (jg) Fred G. SCHULER, USN.                          7
Ensign Marvin L. REEVES, (D)L, USNR.                       0
Ensign George M. HECKER, USN.                              1

2. CHIEF PETTY OFFICERS ON BOARD                   PREVIOUS PATROLS

MANSFIELD, William D., CMOMM(AA)(T)(SS), USN.             14
BELL, Joseph S., CTM(AA)(T)(SS), USN.                     13
DILLOUGH, Kenneth G., CMOMM(T)(SS), USN.                  12
PAGE, Edward F., CMOMM(AA)(T)(SS), USN.                   11
REMBIS, Stephen F., CRM(PA)(SS), USN.                      5
GOETZ, Alfred K., CRT(AA)(T)(SS), V-6, USNR.                5
TATE, Gerald W., CEM(AA)(T)(SS), USN.                      5
WILLIAMS, Roy J., CPHM(AA)(T)(SS), USN.                    5

- 1 -

— page 250 —
U.S.S. SEALION - 1 part of SIXTH War Patrol (cont'd.)
ALL TIMES ITEM (-9)

30 April 1945
1400 Departed SUBIC BAY, PHILIPPINE ISLANDS for SIXTH War Patrol
     in accordance with C.T.F. 71 OpOrd 59-45 in company with
     U.S.S. BASHAW and U.S.S. HAMMERHEAD. Furnished sound serv-
     ices to DE escort in submarine training area. Departed
     exercise area at 1730 in company with HAMMERHEAD, BASHAW,
     and WILLETT (DE353) conducting radar approaches after dark.
2200 Escort departed.

1 May 1945
     Enroute patrol area.
1200 Position Lat. 15° 00' N.
               Long. 115° 49' E.
1520 Sighted U.S.S. HAMMERHEAD bearing 121° T, 10 miles.
1930 Departed joint zone.
2000 Passed MACCLESFIELD BANK abeam to starboard, 15 miles.

2 May 1945
0700 Trim dive.
0723 Surfaced.
1030 Passed TRITON ISLAND abeam to starboard, 27 miles. Not
     visible.
1200 Position Lat. 15° 35' N.
               Long. 110° 43' E.
1456 Training dive.
1513 Surfaced.
2400 Sent SEALION's serial #1 to C.T.F. 71.

3 May 1945
0847 Trim dive.
0859 Surfaced.
1013 Plane contact #1: PB4Y-2, sighted by lookout bearing 350° T,
     8 miles in position Lat. 18° 55' N.
                         Long. 113° 02' E.
     - 2 -

— page 251 —
U.S.S. SEALION - Report of SIXTH War Patrol (con.'d)
ALL TIMES ITEM: (-9)

3 May 1945 (cont'd)
1200 Position Lat. 19° 01' N.
     Long. 113° 02' E.
2000 Entered patrol area in position Lat. 20° 12' N.
     Long. 114° 05' E.

4 May 1945
0506 Sighted light bearing 039° T, later identified as Chinese junk.
0700 Rendezvoused with U.S.S. CAVALLA in position Lat. 21° 27' N.
     Long. 114° 53' E.
0715 Transferred one mail bag to CAVALLA, containing official and
     personal mail.
0730 Completed rendezvous.
0815 Lost sight of CAVALLA on bearing 210° T.
0830 Commenced patrolling lifeguard station on a 12 mile square at
     0700 position.
0900 Sighted LEMA ISLAND bearing 306° T.
1035 Plane contact #2. Unidentified land based plane bearing 065°
     T, sighted by lookout at 12 miles.
1050 Lost sight of aircraft on bearing 350° T.
1200 Position Lat. 21° 32' N.
     Long. 114° 53' E.
1350 Sighted junk bearing 141° T.
2215 Plane contact #3; SD radar 8 miles. B 29's scheduled. No
     I.F.F. Lost contact at 14 miles. Lat. 21° 25' N.
     Long. 114° 40' E.
2235 Plane contact #4 and #5; SD radar 9 and 10 miles. B 29's
     scheduled. Received IFF from 9 mile contact which closed to
     6 miles. Lost contact at 12 and 20 miles respectively.

5 May 1945
     Patrolling south of HONGKONG.
0641 Trim dive.

- 3 -

— page 252 —
.S. SL.X
-ort of SL.Y Patrol(cont'd)
21 May 1945 (cont'd)

0659 Surfaced.

1021 Made contact on M.V. 270° T., 10-12 miles
     distant. Identified as a patrol vessel bearing 225° T.
     Lat. 21° 33' N.
     Lon. 114° 35' E.

1109 Sighted a real-sized Japanese line patrol type 92 (bomb)
     Identified as described in C.I. Intelligence
     Bulletin No. 97, page 21. Disappeared in distance
     on the high seas, then becoming again a dim field rifle.
     Lat. 21° 33'
     Lon. 114° 35'

1200 Position: Lat. 21° 33'
     Lon. 114° 43'

1603 Weather foul with moderate sea. Not a sea.
     Made contact on 7; no contact in lies. Lat. 21° 25'
     Lon. 114° 54'

1607 Lost contact. No not sighted.

2232 Made contact on 4; no contact in lies. No contact in
     lies. No contact in lies. No contact

— page 253 —
U.S.S. [UNCLEAR: SEA] - Report of [UNCLEAR: WAR] Patrol (cont'd)
(cont'd)

6 May 1945 (cont'd)
1200 | position lat. 21° 29' N.
     | long. 114° 48' E.
2030 | 1 to 5 miles. SD radar contact 8 miles. Dived as range
     | closed to 3 miles. C [UNCLEAR: M] lat. 21° 30' N.
     | long. 115° 0' E.
2055 | Surf good.
2120 | 1 to 5 miles. 12. SD radar contact 6 miles. Dived as range
     | closed to 3 miles. 1 to 5 miles. Lane crossed white [UNCLEAR: ]
     | to 5 miles. and other [UNCLEAR: ] to 5 miles.
     | lat. 21° 30' N.
     | long. 115° 07' E.
2303 | Surfaced.

7 May 1945.
     | All engines continue foul.
1000 | One engine, geared for re-devous.
1200 | position lat. 21° 43' N.
     | long. 1

— page 254 —
U.S.S. [UNCLEAR: 300] report of [UNCLEAR: her] patrol (cont'd)
1 July 1945 (cont'd)

1200 Position Lat. 21° 27'
     Long. 115° 14'
     Weather: not good.

1250 Plane contact #13. Lookout sighted plane bearing 200° T.
     SD contact at 11 miles. No IFF. Range 25. Closed
     out and was lost by sight and SD. Lat. 21° 30'
     Long. 115° 19'.

1335 Sent I.C.S. 2 to C.O.T. 71 requesting additional patrol
     instructions.

1923 Plane contact #14. SD contact. No IFF. Bearing 210° T.
     Unclassified. No IFF. Plane lost in clouds. Lat. 21° 45'
     Long. 115° 12'.

1940 Received message from P.T.M. in reply to the aforesaid
     question on 1335.

2 July 1945.

     Sea moderate; sky clear.

0045 Received supplementary Cptra instruction from [UNCLEAR: C.O.T.] 71 to
     patrol south of 21° 00' between 114° [UNCLEAR: 00'] and 115° [UNCLEAR: 00'].

0650 Trim dive.

0700 Surfaced, set course for lifeguard station.

0852 Plane contact #15. SD radar contact 16 miles. Range closed
     to 10 miles; was lost at 15. Not sighted. No IFF.
     Lat. 21° 34' N.
     Long. 114° 56' E.

1003 Plane contact #16. SD radar contact 25 miles. Lost contact
     at 24 miles. No IFF. Lat. 21° 34' N.
     Long. 114° 38' E.

1105 Commenced getting phenomenal SD ranges up to 58 miles on
     friendly planes. B 24's were over between 1105 and 1430.

1145 Arrived on lifeguard station. Lat. 21° 31' N.
     Long. 114° 09' E.

1200 Position Lat. 21° 31' N.
     Long. 114° 09' E.

1300 Released from lifeguard duties by plane cover.

- 6 -

— page 255 —
U.S.S. SEALLION - Report of SIXTH War Patrol (cont'd)

9 May 1945 (cont'd)

1310 Sighted 4 liberators heading home.

1900 Patrolling on station on an East - West line 40 miles South-
     East of HONGKONG.

1957 Received message from FIFTH Air Force designating lifeguard
     station for air strike on 10 May.

2045 Received APR indications on 162/650/2, believed to be surface
     search from aircraft. Commenced swinging ship to get bearing
     on contact. Were attaining some success when at

2105 Plane contact #17 by SJ radar bearing 025° T, range 9600
     yards, lost contact a few minutes later at 10,500 yards. Also
     lost APR contact at about the same time. Lat. 21° 40' N.
                                                Long.114° 30' E.

2120 Received APR indication on 167/500/2. This believed to be
     land based air search radar on LEMA ISLAND (south of
     HONG KONG).

2210 Plane contact #18. SJ and SD contact bearing 040° T, range
     6 miles. At same time received APR indications on 150/600/2-
     3. Lost plane and APR contact shortly after. Lat. 21° 38' N.
                                                Long. 114° 16' E.

10 May 1945

     Overcast. Moderately rough seas.

0454 Plane contact #20. SD contact miles. Range closed to 6
     miles when SJ made contact bearing 020° T. Plane moved out.
     Contact lost at 12 miles. No APR indication. Lat. 21° 26' N.
                                                Long. 114° 29' E.

1000 Arrived on assigned lifeguard station for to-days air strike.
     Lat. 21° 46' N.
     Long. 114° 57' E.

1119 Heavy overcast with light mist. Visibility about 4-600 yards.
     Commenced picking up numerous friendly SD radar indications
     up to 42 miles from our planes coming in on the scheduled
     strike.

1126 Received an APR indication on 160/650/? with SD contact at
     24 miles. This may have been an enemy plane. There were
     still friendly planes in the vicinity.

1200 Position Lat. 21° 46' N.
     Long. 114° 57' E.

     - 7 -

— page 256 —
U.S.S. SEALION - Report of SIXTH War Patrol (cont'd)
10 May 1945 (cont'd)

1300 Contacted friendly plane on VHF at 17 miles. Sighted this
     plane at 3 miles coming low out of mist. Identified as B 17
     rescue plane. He circled us numerous times close aboard
     and very low. Overcast was heavy and low with intermittent
     rain. We had excellent VHF contact both ways at all times.

1425 Rescue plane released us from lifeguard duties and departed.

1450 Plane contact #21. SJ radar contact 8 miles, bearing 062° T.
     Believe this was enemy. Lat. 21° 40' N.
     Long. 114° 54' E.

1500 Plane contact #22. SD and SJ contact 12 miles, bearing 150°T.
     APR indication 160/650/3.

1530 Strong APR indication 160/600/3. Persisted for 15 minutes.
     No aircraft contacts.

1620 APR indication on 158/550/? Lat. 21° 37' N.
     Long. 114° 43' E.

     Spent the night patrolling south of HONGKONG between
     Longitudes 114° and 115°.

11 May 1945

     Moderate seas; scattered clouds.

0820 Trim dive. Stayed down to work on hydraulic plant.

1025 Surfaced.

1137 Sighted a fleet of about ten fishing junks, bearing 219° T,
     approximately 10,000 yards.

1200 Position Lat. 21° 29' N.
     Long. 114° 07' E.

1250 Plane contact #23. SD contact 18 miles. Received friendly
     IFF at 14 miles. Lat. 21° 31' N.
     Long. 114° 20' E.

1415 Plane contact #24. SD contact 9 miles. Friendly IFF return.
     Plane closed to two miles; was not sighted due to overcast.
     Lat. 21° 31.2 N.
     Long. 115° 02' E.

12 May 1945

     Rough seas, light overcast.
     - 8 -

— page 257 —
U.S.S. SEALION - Report of SIXTH War Patrol (cont'd)
12 00 Position Lat. 21° 41.2' N.
         Long. 114° 24.2' E.

2029 Plane contact #25. SD contact 9 miles. No IFF. Plane
         closed to 3 miles so at

2032 Divod. Lat. 21° 30' N.
         Long. 115° 02' E.

2114 Surfaced.

2152 Plane contact #26. SD, SJ contact 8 miles, bearing 030° T.
         Received IFF return. Turned on ABK. Lost plane at 9 miles.
         Lat. 21° 22' N.
         Long. 115° 03' E.

2230 Plane contact #27. SD, SJ contact 9 miles, bearing 286° T.
         Plane closed to 3 miles so at

2235 Divod. Lat. 21° 17' N.
         Long. 115° 03' E.

2336 Surfaced.

2350 Airborne indication on 180/160/2 Lat. 21° 13.5' N.
         Long. 115° 03.5' E.

2353 Plane contact #28. SD, SJ contact 7 miles, bearing 040° T.
         No IFF return. Lost contact at 9 miles.

13 May 1945

Moderate seas. High, light overcast.

1004 Plane contact #29. SD contact 26 miles; lost at 28 miles.
         Lat. 21° 32' N.
         Long. 114° 31' E.

1120 Plane contact #30. SD contact 9 miles. Sighted bearing
         230°T. IFF return. Unidentified flying boat. Lost contact
         at 10 miles. Lat. 21° 26' N.
         Long. 114° 44' E.

1200 Position Lat. 21° 25' N.
         Long. 114° 50' E.

1233 Plane contact #31. SD contact 29 miles. Lost contact at 22
         miles. Lat. 21° 24' N.
         Long. 114° 50' E.

- 9 -

— page 258 —
U.S.S. SEALION - Report of SIXTH War Patrol (cont'd.)
13 May 1945 (cont...)

1233 Plane contact #32. Sight and SD contact 8 miles bearing
     145° T. Two unidentified airoraft on Easterly course.
     Lat. 21° 20' N.
     Long. 114° 56' E.
2130 APR indication 150/500/?
2150 Plane contact #33. SJ contact 7,000 yards bearing 359° T.
     Dived as range closed rapidly to 3 miles. Lat. 21° 29' N.
     Long. 114° 37' E.
2327 Surfaced.

14 May 1945
     Slight sea, partly cloudy.
0510 Plane contact #34. SD contact 15 miles. No IFF. At -
0514 Dived as range closed rapidly to 4 miles. Lat. 21° 24' N.
     Long. 114° 08' E.
0600 Surfaced.
1144 Plane contact #35. SD contact 11 miles. Dived as range
     closed rapidly to three miles. No IFF. Plane not sighted
     due to heavy overcast. Lat. 21° 43' N.
     Long. 114° 53' E.
1200 Position Lat. 21° 43' N.
     Long. 114° 54' E.
1316 Surfaced.
1812 Received message from CTF 71. Telling us friendly plane
     sighted unidentified submarine in our position about 2200
     last night.
2248 Sent SEALION's #3 to C.T.F. 71 requesting advance information
     on friendly night flying planes in our area. This necessary
     due numerous cnemy radar planes contacted at night.

15 May 1945
     Weather continues to be exceptionally good for this area.
0544 Plane contact #36. SD contact 7 miles. No IFF. Divod as
     range closed to 4 miles. Lat. 21° 42' N.
     Long. 114° 41' E.

- 10 -

— page 259 —
U.S.S. SEALION - Report of SIXTH War Patrol (cont'd.)
15 May 1945 (cont'd.)

0622 Surfaced.
1200 Position Lat. 21° 23' N.
     Long. 114° 24' E.
2230 SJ radar interference bearing 080° T. Exchanged recognition
     signals by SJ with U.S.S. BLUEGILL.

16 May 1945

     Sea calm, weather clear.
0020 Plane contact #37. SJ made contact at 8,000 yards, bearing
     310° T. SJ lost contact and SD picked it up at 3 miles. No
     IFF. No APR indications.
0022 Dived as plane closed rapidly. Lat. 21° 16' N.
     Long. 114° 15.5' E.
     If this was an enemy plane we can't understand why he didn't
     bomb us. He surely should have seen us with sea and weather
     conditions as they were.
0107 Surfaced.
0935 Plane contact #38. SD and sight contact 10 miles bearing
     050° T. IFF return. Identified as PB4Y-2. Lat. 21° 17' N.
     Long. 114° 56' E.
     We attempted to contact this plane on area frequency without
     success. We managed to establish communication by VHF on
     Channel DOG, after failing on Channel BAKER. This plane was
     not guarding the Safplan - frequency. By VHF we asked him
     to tune his receiver to the effective frequency. He ack-
     nowledged and we commenced sending V's. About this time he
     left the area and we could not regain communications.
1200 Position Lat. 21° 09' N.
     Long. 114° 47' E.
2321 Plane contact #39. SD, SJ contact 7 miles, bearing 130° T.
     IFF return.
2324 While holding our breaths watched a B-24 pass over our bow at
     500 feet. Attempted communications by VHF on all Channels
     with negative results. Lat. 21° 49' N.
     Long. 114° 55' E.

- 11 -

— page 260 —
U.S.S. SEALLION - Report of SIXTH War Patrol (cont'd.)
17 May 1945
Sea's continue to be moderate with clear sky.
0834 Training dive.
0859 Surfaced.
1023 Plane contact #40. SD and sight contact 11 miles, bearing
     085° T. Identified as B-24. Established communications by
     VHF. Lat. 21° 50' N.
     Long. 114° 55' E.
1200 Position Lat. 21° 37' N.
     Long. 114° 09' E.
1710 Plane contact #41. SD contact 11 miles. No IFF. Range
     closed to 8 miles and was lost at 12 miles. Not sighted.
     Lat. 21° 45' N.
     Long. 114° 53' E.
18 May 1945
Weather and sea continue moderate with occasional rain squalls.
0023 Plane contact #42. SD contact 12 miles. No IFF or APR
     indication. Lost contact at 17 miles. Lat. 21° 15' N.
     Long. 114° 35' E.
0440 Plane contact #43. SD contact 21 miles. No IFF or APR
     indication. Lost contact at 11 miles. Lat. 21° 20' N.
     Long. 114° 08' E.
0956 Plane contact #44. SD contact 20 miles. Lost contact at
     22 miles and four minutes later established communications
     on VHF. Talked with plane for 30 minutes at a range of
     about 25-30 miles. Cleared up several confusing commun-
     ication details.
1200 Position Lat. 21° 43' N.
     Long. 114° 29' E.
19 May 1945
0135 Plane contact #45. SD contact. IFF return; 10 miles. Lost
     contact at 18 miles. Lat. 21° 38' N.
     Long. 114° 56' E.
0646 Trim dive.
0702 Surfaced.
     - 12 -

— page 261 —
U.S.S. SEALION - Report of SIXTH War Patrol (cont'd.)
19 May 1945 (cont'd.)

0820    Plane contact #46. Sight and SD contact 8 miles, bearing
        120° T. No IFF. Identified as B-24. Established commun-
        ication by VHF. He did not possess the latest dope on
        communication and calls. We asked him for shipping dope
        on his return from the beach.

0916    Training dive.

0927    Surfaced.

1200    Position Lat. 21° 23' N.
                 Long. 114° 07' E.

1346    Training dive.

1348    Put crew at battle stations torpedo attack. Hold battle
        problem.

1429    Secured from battle stations.

1434    Surfaced.

2307    Plane contact #47. SD contact 20 miles. Picked up by SJ at
        10 miles, bearing 135° T. No IFF. Strong APR indication on
        175/30/5. Range closed rapidly to 5 miles, so at

2312    Dived.

20 May 1945

        Calm sea; no wind.

0010    Surfaced.

1200    Position Lat. 21° 40' N.
                 Long. 114° 40' E.

1219    Plane contact #48. Sight contact about 10 miles, bearing
        040° T on southerly course. Unidentified. Lat. 21° 39' N.
                                                 Long. 114° 36' E.

1442    Plane contact #49. SD contact 6 miles. No IFF. Not sighted
        due to heavy clouds.

1443    Dived as range closed to five miles. Lat. 21° 34' N.
                                                 Long. 114° 21' E.

1529    Surfaced.

        - 13 -

— page 262 —
U.S.S. SEALION - Report of SIXTH War Patrol(cont'd.)
21 May 1945
0646 Trim dive.
0657 Surfaced.
1200 Position Lat. 21° 36' N.
     Long. 114° 03' E.
1225 Plane contact #50. SD contact 11 miles. Lost contact
     immediately. Lat. 21° 33' N.
               Long. 114° 05' E.
2124 Plane contact #51. SJ contact 8½ miles bearing 110° T.
     Strong IFF indication on 175 megs. Dived, as range closed
     to 4 miles. Lat. 21° 38' N.
               Long. 114° 41' E.
2213 Surfaced.
2234 Plane contact #52. SJ, SD contact 6 miles, bearing 025° T.
     Believe there were two planes as we received IFF 3 miles
     beyond radar range. At -
2241 SD lost contact at 13 miles. Lost IFF at 16 miles.
     Lat. 21° 32' N.
     Long. 114° 43' E.
2322 Plane contact #53. SD contact 12 miles. Lost contact at
     15 miles. Received IFF at 24 miles. Lat. 21° 26' N.
                                       Long. 114° 44' E.

22 May 1945
     Moderate sea. No wind.
0040 Plane contact #54. SD contact 11 miles. IFF return from
     3 or 4 planes.
0057 Lost SD and IFF contacts.
1200 Position Lat. 21° 36' N.
     Long. 114° 26' E.

23 May 1945 (
     Seas becoming rough. Wind from the Northeast.
0322 Plane contact #55. SD contact 21 miles. Lost contact two
     minutes later. Lat. 21° 30' N.
                   Long. 114° 28' E.

     -- 14--

— page 263 —
U.S.S. SEALION - Report of SIXTH War Patrol (cont'd.)
23 May 1945 (cont'd.)

1037 Plane contact #56. SD contact 6 miles. No IFF.

1038 Dived as range closed to 3 miles. Plane not sighted due to
     overcast. Lat. 21° 36' N.
               Long. 114° 11' E.

1126 Surfaced.

1200 Position Lat. 21° 30' N.
               Long. 114° 01' E.

1343 Sighted floating horned mine type 140 illustrated in Mine
     Identification Manual O.P. #898 page #6.

1407 Sank mine with 20 m.m. gun fire in Lat. 21° 17' N.
                                   Long. 114° 04' E.

1842 Received CTF 71 message instructing SEALION to return to
     SUBIC BAY at termination of area patrol.

24 May 1945

     Rough seas, heavy overcast with occasional rain.

0242 Plane contact #57. SD contact 11 miles. IFF return. SJ
     picked him up at 6 miles bearing 310° T.

0245 The largest PBM we have ever seen passed directly overhead at
     about 200 feet. Attempted communications by radio and VHF
     with negative results.

0310 Lost contact at 16 miles in Lat. 21° 12' N.
               Long. 114° 15' E.

1200 Position Lat. 21° 41' N.
               Long. 114° 43' E.

2310 Plane contact #58. SJ contact at 23,000 yards bearing 120° T.
     Not picked up by SD. No IFF. Range closed rapidly, so at

2313 Dived as range closed to 8,000 yards. Lat. 21° 21' N.
                                   Long. 114° 00' E.

2357 Surfaced.

25 May 1945

     Moderate seas and light winds from Southeast.

- 15 -

— page 264 —
U.S.S. SEALION - Report of SIXTH War Patrol (cont'd)
25 May 1945 (cont'd)

1038 Plane contact #59. Sight contact about 15 miles bearing 030° T.
     Not picked up by SD. Lat. 21° 37' N.
                         Long. 114° 00' E.

1043 Lost sight of plane bearing 000° T. Range too great for
     identification.

1200 Position Lat. 21° 41' N.
               Long. 114° 15' E.

1324 Plane contact #60. IFF contact at 25 milcs. Sighted plane
     about 20 miles bearing 340° T. SD made contact at 10 miles.
     Range closed to 8½ milcs. Identified as B 24, course 120° T.
     Disappeared from sight at 30 miles; from SD screen at 32 miles.
     Unable to communicate. Lat. 21° 44' N.
                         Long. 114° 32' E.

2036 Dived to make repairs to SJ radar.

2244 Radar back in operation so came up to 42 feet. All clear on
     SD but received an IFF at 5 miles (Plane contact #61). SJ
     picked up plane at 5000 yards bearing 070° T. The Commanding
     Officer sighted a PBY through the periscope (by moonlight)
     crossing over our stern at about 100 foot altitude. These
     boys are either awfully good or else it is by some uncanny
     coincidence they all seem to pass right over us. Attempted
     VHF communication at radar depth with no success.
     Lat. 21° 32' N.
     Long. 114° 19' E.

2254 Lost SJ contact on PBY at 26,000 yards bearing 280° T.

2258 Surfaced.

2318 Plane contact #62. SJ contact at 19,000 yards bearing 035° T.
     Received IFF return at 8 milcs. Established communications on
     VHF. Plane asked if he was closing us. We gave him an
     affirmative. Plane turned on his running lights and passed
     down our starboard side flying very low. Identified as PBM.

2331 SJ lost contact at 26,000 yards bearing 320° T.
     Lat. 21° 28' N.
     Long. 114° 17' E.

26 May 1945

0138 Plane contact #63. IFF return 45 miles.

- 16 -

— page 265 —
U.S.S. SEALLION - Report of SIXTH War Patrol (cont'd)
26 May 1945 (cont'd)

0208 Lost IFF at 30 miles. No pip on SD.

0505 Plane contact #64. SJ contact 6000 yards bearing 035° T.
     Divcd as range closed. No IFF. Lat. 21° 35' N.
                                    Long. 114° 06.5' E.

0540 Surfaced.

1056 Plane contact #65. SD and sight contact 5 miles bearing
     140° T. No IFF. Identified as B 24. Lost contact at 8 miles
     bearing 340° T. Lat. 21° 45' N.
                                    Long. 114° 47' E.

1200 Position Lat. 21° 43' N.
              Long. 114° 37' E.

1206 Plane contact #66. SD contact 4 miles. Received IFF at 7
     miles as he was moving out. Lost IFF at 24 miles.
     Lat. 21° 43' N.
     Long. 114° 37' E.

1845 Received message from CTF 71 informing us that night flying
     PBM was down somewhere between HAINAN and SWATOW. Commenced
     search of area.

27 May 1945

Moderate seas, misty skys.

0042 Plane contact #67. SD contact 24 miles. No IFF.

0053 Lost contact at 25 miles. Lat. 21° 11' N.
                                    Long. 114° 37' E.

0343 Plane contact #68. SD contact 8 miles. SJ picked him up at
     14,000 yards bearing 240° T. Established communication by
     VHF at 5 miles. Received IFF return at same time.

0349 SD lost contact at 9 miles. Lat. 21° 12' N.
                                    Long. 114° 14' E.

1110 Plane contact #69. SD contact 14 miles. Received IFF return
     30 miles. Lost SD contact immediately. IFF moved in to 16
     miles then opened. Lat. 21° 19' N.
                                    Long. 114° 56' E.

1200 Position Lat. 21° 15' N.
              Long. 114° 54' E.

- 17 -

— page 266 —
U.S.S. SEALION - Report of SIXTH War Patrol (cont'd)
28 May 1945

                    Moderate seas. Light winds from Southeast.

0029 Received message from CTF 71 directing SEALION to bring to
     SUBIC the five aviators BREAM has aboard.

0213 Plane contact #70. SD contact 4 miles. No IFF; so at -

0214 Dived as range closed to 3 miles at which time SJ picked him
     up. Lat. 21° 18' N.
     Long. 114° 23' E.

0300 Surfaced.

0715 Set course for BREAM'S area.

0745 Attempted to contact BREAM by radio for about an hour and a
     half without success.

1015 Plane contact #71. SD and sight contact 13 miles bearing
     020° T. No IFF. Identified as B 24. Lat. 21° 38' N.
                                            Long. 115° 29' E.

1057 Plane contact #72. SD, sight, IFF contact 11 miles bearing
     250° T. Sighted four unidentified planes. Lat. 21° 37' N.
                                            Long. 115° 37' E.

1145 Plane contact #73. SD and sight contact 5 miles bearing
     300° T. Identified as PB4Y2. Established communications by
     VHF asking him if he had any sightings for us. He replied
     negative and asked us if we had anything for him. Answered
     negative. Lost sight of plane at 25 miles on course 120° T.
     Lat. 21° 35' N.
     Long. 115° 48' E.

1233 Plane contact #74. SD, IFF and sight contact. SD and IFF
     at 32 miles. Sighted at 12 miles bearing 050° T. Four
     unidentified planes. Lat. 21° 33' N.
                                            Long. 115° 55' E.

1800 Attempted to contact BREAM by radio again without success.

2001 Plane contact #75. Sight and SJ, contact. Sighted plane at
     15 miles bearing 170° T. SJ picked him up at 26,000 yards.
     Identified as PBM.

2012 Lost sight of plane at 15 miles bearing 280° T. Lat. 21° 21' N.
                                            Long. 117° 15' E.

                                  - 18 -

— page 267 —
U.S.S. SEALION - Report of SIXTH War Patrol (cont'd)

28 May 1945 (cont'd)

2350 BREM called us by radio designating rendezvous for transfer
     of aviators.

29 May 1945

     Calm seas light winds from South.

0316 Plane contact #76. SJ contact at 12,000 yards bearing 355° T.
     No IFF. Sighted from bridge in bright moonlight at 5 miles.
     Identified as FBM. Established communications by VHF at 3
     miles. Plane passed directly overhead at 200 feet. After he
     passed over he switched on IFF. Very thoughtful. SJ lost
     contact at 13 miles bearing 135° T. Lat. 21° 38' N.
                                            Long. 118° 33' E.

0817 Plane contact #77. IFF, SD and sight contact. Received IFF
     return at 45 miles; SD pip at 20 miles. Sighted at 18 miles
     bearing 260° T. Unidentified. Lost sight of plane at 25
     miles bearing 300° T.

1200 Position Lat. 21° 35' N.
              Long. 118° 19' E.

2351 Received message from BREM changing rendezvous position.

30 May 1945

     Calm seas, no wind.

0511 Plane contact #78. IFF return at 14 miles. Three minutes
     later SJ picked up plane at 9,000 yards. Sighted plane at
     4,500 yards bearing 240° T. Identified as FBM. Established
     communications on VHF. Plane asked if we had any dope on FBM
     lost on 25 May. We replied negative. Lat. 21° 19' N.
                                            Long. 119° 35' E.

0525 Sighted southern tip of FORMOSA bearing 035° T about 100 miles.

0529 Exchanged recognition signals with U.S.S. BREM by SJ bearing
     060° T.

0647 Sighted U.S.S. BREM bearing 034° T.

0700 Plane contact #80. SD and sight contact. Numerous friendly
     aircraft of every description in vicinity. Lat. 21° 46' N.
                                            Long. 120° 03' E.

0720 Fell in astern of U.S.S. BREM who asked us to follow him to
     his lifeguard station for 0800 air strike on FORMOSA.

- 19 -

— page 268 —
U.S.S. SE.LION - Report of SIXTH War Patrol (cont'd)
30 May 1945 (cont'd)
0847 Rondozvous with BREM on his lifoguard station. Lat. 21° 46'N.
     Long. 120° 03' E.
     Two P 51 fighter cover was very comforting.
0902 Received from BREM five army aviators for transportation to
     SUBIC.
0905 Completed rondozvous. BREM asked SE.LION to remain in
     vicinity for duration of air strike to guard VHF frequency.
     BREM's VHF out of commission.
0940 BREM's VHF in commission. SE.LION set course for patrol area
     South of HONGKONG.
1200 Position Lat. 21° 50' N.
     Long. 119° 39' E.
1223 Trim dive.
1242 Surfaced.
1315 Received message on lifoguard frequency that fighter plane
     was down Lat. 19° 30' N.
     Long. 120° 30' E.
1330 Set course for above position on four engines. Had voice
     communications on lifoguard frequency with rescue plane,
     BREM and northern sector control tower. Rescue plane
     searching for downed aviator. SE.LION AND BREM making best
     speed to join search.
1700 Rescue plane informed SE.LION and BREM he was returning to
     base; no relief expected. We asked him if he thought it
     necessary for us to continue search. He replied negative;
     believed there were no survivors. BREM said he was returning
     to area.
1706 Decided to give up search because we could not reach position
     before. 2200. Also we are 300 miles from our area. Rescue
     plane said he had thoroughly covered area South of HONGKONG.
1907 Plane contact #81. IFF return at 30 miles. Sighted plane at
     26 miles. SD picked him up at 8 miles bearing 170° T.
     Identified as B 24. Lat. 20° 56' N.
     Long. 119° 20' E.
2007 Plane contact #82. SD contact 15 miles. Sighted at 7 miles
     bearing 260° T. Identified as PBM. Lat. 20° 59' N.
     Long. 119° 08' E.

- 20 -

— page 269 —
U.S.S. SEALION - Report of SIXTH War Patrol (cont'd.)
30 May 1945 (cont'd.)

2154 Plane contact #83. SD contact 14 miles. Lost pip one minute
     later at 15 miles. Established communications by VHF. Never
     sighted. Unidentified as to type. Lat. 21° 07' N.
                                            Long. 118° 46' E.

31 May 1945

Calm seas, light winds.

0905 Training Dive.

0918 Surfaced.

0930 Established communications with sector search plane on area
     frequency for the first time. Maybe the air-sub commun-
     ications are finally being straightened out. Plane reported
     he had no sightings for us.

1118 Plane contact #84. Sighted PB4Y-2 bearing 020° T range 15
     miles. IFF and SD contact at 6 miles. Established comm-
     unications on VHF. Lat. 21° 43' N.
                                 Long. 115° 41' E.

1200 Position Lat. 21° 42' N.
               Long. 115° 33' E.

1600 Plane contact #85. IFF 10 miles. Sight and SD contact
     immediately after, bearing 200° T. Identified as B-24.
     Lat. 21° 43' N.
     Long. 114° 35' E.

2000 Received APR indication on 160/520-600/3. Commenced swinging
     ship to obtain bearing. Obtained favorable indications that
     radar is located on HONGKONG - bearing out our previous
     suspicion. Lat. 21° 38' N.
                                 Long. 114° 26' E.

2120 Plane contact #86. SJ contact bearing 050° T range 16,000
     yards. For next two hours had numerous indications on SJ
     and SD with IFF on the majority of contacts. Had one
     phonotical range of 30,000 yards with SJ which was verified
     with a 15 mile pip on SD. Expected to see SJ go up in smoke
     at any time. Lat. 21° 49' N.
                                 Long. 114° 37' E.

2227 Sent SEALION's #4. Departed Patrol Area, set course for
     SUBIC in accordance with C.T.F. 71 instructions.

- 21 -

— page 270 —
U.S.S. SEALION - Report of SIXTH War Patrol (cont'd.)

1 June 1945
0055 Plane contact #87. SD contact 9 miles. Followed him in on
     IFF from 35 miles. Lost IFF at 45 miles going out.
     Lat. 21° 39' N.
     Long. 115° 28' E.

0312 Plane contact #88. IFF return at 12 miles. SD and SJ made
     contact at 6 miles bearing 350° T. PBM sighted at 2½ miles.
     Established communications on VHF. Lost radar contact at
     7 miles. Lat. 21° 37' N.
     Long. 116° 02' E.

0702 Training dive.

0714 Surfaced.

0939 Plane contact #89. IFF at 32 miles. Lat. 21° 17' N.
                                       Long. 117° 15' E.

0943 Above plane sighted bearing 100° T, 20 miles. Established
     communications on VHF. Identified as B-24.

1036 Training dive.

1046 Surfaced.

1200 Position Lat. 21° 03' N.
              Long. 117° 43' E.

1355 Plane contact #90. PB4Y-2 sighted through high 'scope
     bearing 330° T range 8 miles. IFF return at 7 miles.
     Lat. 20° 55' N.
     Long. 117° 58' E.

1905 Plane contact #91. IFF return at 14 miles. Sighted three
     PBY's at 12 miles bearing 150° T, 130° T, and 193° T.
     Exchanged recognition signals. Lat. 20° 03' N.
                                   Long. 117° 12' E.

2110 Plane contact #92. SJ contact at 13,900 yards bearing 040° T.

2113 Lost contact at 15,000 yards bearing 015° T. No IFF.
     Unidentified. Lat. 20° 05' N.
                 Long. 117° 40' E.

2 June 1945
     Glassy sea. No wind.

                                   - 22 -

— page 271 —
U.S.S. STALION - Report of SIXTH War Patrol (cont'd.)
2 June 1945 (cont'd.)

0006 Plane contact #93. SD contact 10 miles. IFF return. Lost
     contact 16 miles. Type unidentified. Lat. 20° 05' N.
                                            Long. 118° 01' E.
0015 Plane contact #94. IFF return from 3 planes at 35 to 40 mis.
0828 Plane contact #95. Sighted PB4Y-2 bearing 120° T range 15
     miles. IFF return at 8 miles. Established communications
     on VHF. Lat. 19° 02' N.
                 Long. 118° 28' E.
1000 Entered joint zone. Lat. 18° 30' N.
                 Long. 118° 27' E.
1200 Position Lat. 18° 11' N.
                 Long. 118° 26' E.
1455 Trim dive.
1510 Surfaced.
1631 Received message from C.T.F. 71 designating rendezvous with
     escort.

3 June 1945
0150 Exchanged calls by radar with northbound BLACKFIN.
0605 Sighted escort bearing 112° T at 16,150 yards.
     Lat. 14° 43' N.
     Long. 119° 08' E.
1012 Passed through submarine net entering SUBIC BAY.
1048 Moored alongside Tender HOWARD W. GILLMORE. Commenced
     unloading torpedoes. Unloaded 16 Mk. 14-3A, 2 Mk. 18-2,
     4 Mk. 18-1 and 3 Mk. 27 torpedoes. Took aboard 6 Mk. 23
     torpedoes forward and 8 Mk. 23 torpedoes aft. Topped off
     all fuel tanks with exception of #4 FBT which was converted
     to a MBT.

4 June 1945
Moored alongside Tender U.S.S. HOWARD W. GILLMORE.

- 23 -

— page 272 —
U.S.S. SEALION - Report of SIXTH War Patrol (cont'd.)
4 June 1945 (cont'd.)

0815    15 Filipino Stewards Mates reported aboard for transportation
        to ComSubPac; Transferred 4 men from ComSubDiv 222 Relief Crew;
        Received 1 man from ComSubDiv 222 Relief Crew, Lieutenant
        Joseph F. RYAN, USN. (165554) reported aboard for duty in
        accordance with orders of ComSubs7thFlt dated 4 June 1945.

1410    Departed SUBIC BAY in accordance with C.T.F. 71 modification
        to original operation order.

1600    Commenced scheduled sound exercises with escorts DE 364 and
        DE 359.

1622    Dived and commenced Baltimore runs.

1757    Surfaced, set course for GUAM via joint zones.

2000    Conducted radar tracking exercises with escort.

2050    Escort departed.

5 June 1945

Sea moderate, light winds.

0631    Plane contact #96. Sighted unidentified aircraft 007° T.

0642    Lost sight of aircraft bearing 340° T. Lat. 15° 59' N.
                                            Long. 118° 23.2' E.

1200    Position Lat. 17° 16' N.
                 Long. 118° 30' E.

1221    Plane contact #97. Sighted B-24 bearing 340° T at 14 miles.
        IFF return Lat. 17° 22' N.
                 Long. 118° 31' E.

1228    Plane contact #98. Sighted B-24 bearing 028° T at 10 miles.
        IFF return. Established communications on VHF.
        Lat. 17° 22' N.
        Long. 118° 31' E.

1235    Plane contact #99. SD contact 7 miles. Sighted PB4Y-2
        bearing 300° T at 4 miles. IFF return. Established com-
        munications on VHF. Lat. 17° 22' N.
                                Long. 118° 31' E.

1355    Plane contact #100. IFF return. SD and sight contact bearing
        285° T at 18 miles. Established communications with B-24 on
        VHF. Plane flew overhead to take pictures.

- 24 -

— page 273 —
U.S.S. SEALION - Report of SIXTH War Patrol (cont'd.)

5 June 1945 (cont'd.)
1413 Lost sight of plane at 10 miles. Lat. 17° 37' N.
                                       Long. 118° 30' E.
1730 Departed joint zone Lat. 18° 30' N.
                               Long. 118° 27' E.

6 June 1945

       Seas moderate to rough. Weather squally.
0636 Trim dive.
0648 Surfaced.
0718 Plane contact #101 IFF. SD and sight contact at 18 miles.
       Closed to 7 miles. Lost at 12 miles. Unidentified.
       Lat. 20° 10' N.
       Long. 118° 42' E.
1200 Position Lat. 20° 08' N.
                 Long. 120° 03' E.
1323 Plane contact #102. SD contact at 6 miles. Sighted B-24
       bearing 180° T range 5 miles. IFF return. Lost contact at
       6 miles. Lat. 20° 04' N.
                 Long. 120° 26' E.
1343 Plane contact #103. IFF return. SD contact 6 miles.
       Established communications on VHF. Plane not sighted.
       Unidentified. Plane informed SEALION of people in raft 15
       miles south of FORMOSA; asked if we could do anything about
       it. We replied negative due to schedule. Told plane there
       were subs in that area and to attempt to contact them.
1345 Unable to raise any boats in vicinity on area frequency.
1350 Sent message about men in raft blind on area frequency.
1532 Plane contact #104. IFF return. Sighted B-24 at 25 miles
       bearing 010° T. Established communications on VHF at 20
       miles. Lost sight of plane at 20 miles. Lat. 20° 08' N.
                                             Long. 120° 57' E.
1620 SABTANG ISLAND bearing 075° T.
1711 Exchanged recognition signals with U.S.S. BLUEGILL.
1830 SABTANG ISLAND abeam to port. Transiting BINTANG CHANNEL.

- 25 -

— page 274 —
U.S.S. SEALION - Report of SIXTH War Patrol (cont'd.)

6 June 1945 (cont'd.)
1958 Sent SEALION's #1 to ComSubPac. Receipted for by SUBIC.

7 June 1945
Moderate sea and breeze.
0100 Entered joint zone. Set course for GUAM; through joint zone.
0645 Commenced changing course every hour awaiting routing
     instructions prior crossing 125th Meridian.
1200 Position Lat. 20° 41' N.
     Long. 124° 30' E.
1238 Sent SEALION's #2 to ComSubPac.
1505 Received ComSubPac routing instructions. Set course for
     GUAM.

8 June 1945 ALL TIMES KING
Moderate to rough sea. Fresh breeze. Overcast.
0100 Set clocks ahead one hour to KING time (-10).
0642 Received routing instructions from C.T.G. 17.7.
0722 Training dive.
0733 Surfaced.
1200 Position Lat. 20° 50' N.
     Long. 129° 20' E.

9 June 1945
0636 Plane contact #105. SD and IFF contact at 4 miles. Plane
     not sighted. Lost at 31 miles. Lat. 20° 45' N.
     Long. 133° 30' E.
0708 Plane contact #106. SD and IFF contact 10 miles. Sighted
     B-24 bearing 035° T. Lat. 20° 45' N.
     Long. 133° 40' E.
0815 Plane contact #107. IFF return at 40 miles moving in. SD
     picked up at 12 miles. Closed to 8 miles.
     Lat. 20° 54' N.
     Long. 133° 40' E.

- 26 -

— page 275 —
U.S.S. SEALION - Report of SIXTH War Patrol (cont'd)

9 June 1945 (cont'd)

0836 Training dive.

0859 Surfaced.

1021 Plane contact #108. IFF return 21 miles. SD made contact at
     6 miles. C 54 sighted bearing 200° T. Lat. 20° 51' N.
                                            Long. 134° 24' E.

1103 Plane contact #109. Sighted B 24 bearing 170° T range 10
     miles. IFF return. Exchanged recognition signals. Estab-
     lished communications on VHF. Lat. 20° 51' N.
                                            Long. 134° 32' E.

1134 Plane contact #110. IFF return 30 miles. SD made contact at
     10 miles. C 54 sighted bearing 355° T. Lost plane bearing
     340° T 16 miles. Lat. 20° 51' N.
                                            Long. 134° 42' E.

1200 Position Lat. 20° 51' N.
              Long. 134° 47' E.

1225 Plane contact #111. Sighted PBM bearing 300° T 10 miles.
     Lost contact at 30 miles. Lat. 20° 51' N.
                                            Long. 134° 49' E.

1304 Plane contact #112. Sighted two C 47's bearing 077° T 10 miles.
     Lost contact at 20 miles on course 130° T. Lat. 20° 49' N.
                                            Long. 135° 00' E.

1336 Sighted tops of two ships bearing 142° T approximately 25,000
     yards on parallel course. Maneuvered to avoid.
     Lat. 20° 48' N.
     Long. 135° 10' E.

1445 Lost sight of ships bearing 115° T.

1507 Sighted same ship again bearing 115° T.

1545 Identified ships as fleet DD and tug with unidentified tow.

1605 Exchanged recognition signals with U.S.S. BLUE (DD744).

1610 Plane contact #113. IFF return at 40 miles. Sighted C 47
     bearing 225° T at 30 miles. Few minutes later sighted second
     C 47 at 18 miles bearing 020° T. Established communications
     on VHF. Lost sight of both planes at 32 miles.
     Lat. 20° 37' N.
     Long. 135° 12' E.

- 27 -

— page 276 —
U.S.S. SEALION - Report of SIXTH War Patrol (cont'd).

9 June 1945 (cont'd)

1742 Plane contact #114. IFF return at 30 miles. Sighted C 47
     bearing 300° T, at 18 miles. Lat. 20° 46' N.
                                   Long. 135° 38' E.

2025 SJ radar interference. Exchanged recognition signals with
     U.S.S. CARBONERO (SS 337) on SJ radar.

2052 Had radar pip on CARBONERO bearing 035° T range 14,800 yards.
     Lat. 20° 50' N.
     Long. 136° 11' E.
2109 Sent SEALION's serial #3.
10 June 1945

     Moderate to rough seas. Fresh Easterly breeze.

0128 Plane contact #115. IFF return at 14 miles. SJ contact 5,000
     yards bearing 320° T. Plane closed to 2 miles. Established
     communications on VHF. Type unidentified.

0725 Plane contact #116. Sighted through high 'scope bearing 020° T,
     range 20 miles. Lat. 20° 35' N.
                           Long. 138° 36' E.

1200 Position Lat. 20° 38' N.
                 Long. 139° 35' E.

11 June 1945

0112 Plane contact #117. IFF contact 25 miles. Plane closed to
     2 miles. Running lights were sighted bearing 165° T. Unident-
     ified as to type. Lat. 19° 09' N.
                           Long. 141° 40' E.

0747 Plane contact #118. IFF contact 50 miles. Plane closed to 20
     miles. Identified as PB4Y2 bearing 175° T.

1200 Position Lat. 17° 49' N.
                 Long. 143° 21' E.

1242 Plane contact #119. IFF, sight contact 8 miles bearing 020° T.
     Unidentified.

1400 Getting numerous friendly plane contacts until arrival at GUAM.

1441 Trim dive.

1458 Surfaced.

- 28 -

— page 277 —
U.S.S. SEALION - Report of SIXTH War Patrol (cont'd).

11 June 1945 (cont'd)

1950 Sighted loom of searchlight on SAIPAN ISLAND bearing 146° T.
     Lat. 16° 32' N.
     Long. 144° 46' E.

2045 Made SJ radar contact on ANATAHAN ISLAND bearing 095° T range
     80,000 yards.

12 June 1945

     Rough seas. Fresh breeze.

0620 Rendezvoused with escort U.S.S. DOHERTY (DE14) and proceeded
     APRA HARBOR, GUAM.

0953 Moored to nest alongside U.S.S. HOLLAND in APRA HARBOR, GUAM.
     Commenced topping off fuel tanks and loading stores.

13 June 1945

     Moored alongside U.S.S. HOLLAND in APRA HARBOR, GUAM. Trans-
     ferred five Filipino Steward's Mates to C.T.G. 17.10 in
     accordance with ComSubPac orders. Retained ten Filipinos aboard
     for further transportation to PEARL HARBOR. Ensign Charles C.
     JOHNSON, (EM)L, USNR, file #180966, reported aboard for trans-
     portation to PEARL HARBOR.

14 June 1945

     Moored alongside U.S.S. HOLLAND in APRA HARBOR, GUAM.

1453 Underway for PEARL HARBOR with lifeguarding assignment off
     WAKE ISLAND enroute. Escorted to joint zone by SC-1041.

1841 Released escort from duties; proceeded WAKE ISLAND.

     Numerous friendly plane contacts throughout the night.

15 June 1945

     Rough seas, fresh breeze. Getting numerous friendly plane
     contacts.

0715 Trim dive.

0737 Surfaced.

1114 Plane contact #120. SD, IFF contact 7 miles. Sighted B 24
     bearing 290° T on course 170° T. Lat. 16° 39' N.
     Long. 146° 05' E.

- 29 -

— page 278 —
U.S.S. SEALION - Report of SIXTH War Patrol (cont'd)

15 June 1945 (cont'd)
1200 Position Lat. 16° 39' N.
     Long. 146° 13' E.

16 June 1945
     All times LOVE. Rough seas, fresh breeze from East.
0100 Set all clocks ahead one hour to LOVE TIME (-11).
1200 Position Lat. 17° 49' N.
     Long. 151° 08' E.

17 June 1945.
     Weather unchanged.
0647 Trim dive.
0701 Surfaced.
1200 Position Lat. 19° 08' N.
     Long. 156° 28' E.

18 June 1945
     Moderate seas, light wind from the East.
1200 Position Lat. 18° 56' N.
     Long. 162° 02' E.

19 June 1945
     Slight sea, gentle breeze from the East.
0704 Trim dive.
0715 Surfaced.
0910 Training dive.
0921 Surfaced.
1200 Position Lat. 19° 03' N.
     Long. 162° 59' E.

20 June 1945
     No change in weather.

- 30 -

— page 279 —
U.S.S. SEALION - Report of SIXTH War Patrol (cont'd).
20 June 1945 (cont'd)

0400 Arrived on lifeguard station 10 miles South of WAKE ISLAND
     for scheduled air strike by Car. Div. 11.

0500 Sighted and contacted two PBM rescue planes on lifeguard
     frequency and VHF.

0545 Two fighter cover planes showed up and circled us. Establish-
     ed communications on VHF.

0600 Air strike in progress.

1030 We were really enjoying our "ringside seat" for the show -
     being five miles off the beach (too close) for at

1035 Dived as Japs opened up with shore battery. Appeared to be
     four or five inch guns. Heard one pass overhead and saw
     another splash about 1000 yards off the beam.

1109 Surfaced. Spent rest of day 10 miles off shore.

1200 Position Lat. 19° 06' N.
     Long. 166° 35' E.

1645 Air strike ended. Cover and rescue planes notified us they
     were departing. Radio and voice communications were very good
     throughout the day. Have received orders to remain undetect-
     ed in vicinity of WAKE ISLAND.

21 June 1945

     Patrolling off WAKE ISLAND.

0644 Trim dive.

0738 Surfaced.

1001 Training dive.

1016 Surfaced.

1200 Position Lat. 19° 10' N.
     Long. 164° 24' E.

1404 Training dive.

1421 Surfaced.

22 June 1945

     Slight sea, gentle breeze from East.
     - 31 -

— page 280 —
U.S.S. SEALION - Report of SIXTH War Patrol (cont'd.)
(cont'd.)

22 June 1945
0310 SJ radar picked up WAKE ISLAND bearing 085° T range 25,000
     yards.
0457 Dived for submerged patrol off WAKE ISLAND.
1200 Position Lat. 19° 17' N.
     Long. 166° 34' E.
1210 Plane contact #121. Sighted PB4Y-2 through periscope bear-
     ing 120° T range 3 miles. He was passing over WAKE ISLAND
     on a Northerly course.
1438 Sighted two luggers bearing 162° T range 2 miles. These
     fellows were hugging the reef and apparently fishing.
1919 Surfaced and commenced night surface patrol off Northwestern
     approaches to WAKE.

23 June 1945
Slight sea, light breeze.
0533 Dived for submerged patrol off WAKE ISLAND.
1010 Sighted fishing boat hugging the reef and circling the
     Island, probably fishing. This fellow displaces about a
     hundred tons and is about 100 feet long with small deck
     house and funnel aft; clipper bow no masts, no guns.
1126 Plane contact #122. Sighted PB4Y-2 through periscope bear-
     ing 255° T.
1200 Position Lat. 19° 17' N.
     Long. 166° 33' E.
1919 Surfaced. Commenced surface patrol Northwest of WAKE.

24 June 1945
Light breeze, slight sea, bright moonlight.
0445 Dived for submerged patrol off WAKE ISLAND.
1113 Plane contact #123. Sighted PB4Y-2 bearing 089° T flying
     over WAKE.
1200 Position Lat. 19° 17' N.
     Long. 166° 34' E.
1915 Surfaced and commenced patrolling Northwest of WAKE.
     - 32 -

— page 281 —
7

U.S.S. SEALION - Report on SIXTH War Patrol (cont'd.)
25 June 1945

No change in weather. Bright moonlight.

0541 Dived for submerged patrol off WAKE ISLAND.
1200 Position Lat. 19° 16' N.
          Long. 166° 34' E.
1915 Surfaced. Commenced patrolling Northwest approaches six miles
          off the beach.

26 June 1945

Weather remains calm, bright moonlight.

0240 Experienced 90% eclipse of moon.
0450 Dived for submerged patrol off WAKE ISLAND. Patrolling two
          miles off reef.
1054 Plane contact #124. Sighted PB4Y-2 through periscope bearing
          160° T about 10 miles. The plane was just South of the
          Island.
1200 Position Lat. 19° 18' N.
          Long. 166° 32' E.
1545 Lugger out again either patrolling or fishing off mouth of
          lagoon.
1920 Surfaced and commenced patrolling Northwest approaches to WAKE.

27 June 1945

No wind. Bright moonlight.

0446 Dived for submerged patrol off WAKE. Patrolling two miles off
          the reef.
1200 Position Lat. 19° 25' N.
          Long. 166° 35' E.
1920 Surfaced. Commenced patrolling approaches to WAKE.

28 June 1945

Calm seas, no wind. Bright moonlight.

Patrolling across Northwestern approaches to WAKE ISLAND.

- 33 -

— page 282 —
U.S.S. SEALION - Report os SIXTH War Patrol (cont'd.)
28 June 1945 (cont'd.)

0200 Decided to make a sweep to the South and see if there is any
     activity in vicinity of boat landing.

0303 With WAKE bearing 055° T distance 11,700 yards, heard two
     underwater explosions about 20 seconds apart.

0305 Radar contact bearing 045° T range 7400 yards. Stationed
     tracking party and opened range as it is light as day.
     Unidentified shape visible from bridge.

0315 Lost contact. Changed course to 000° T.

0320 Bright searchlight bearing 075° T swept across us.

0340 Searchlight bearing 080° T steadied in a Southerly direction.
     Could not bring action in that spot because it to be reflect-
     ions from side of a ship (submarine?), so headed for search-
     light and manned battle stations. Radar is not very helpful
     as it cannot distinguish between the various land "pips",
     i.e., a large dredge, in lagoon, various water towers, and
     a large ship beached on reef on Southwestern portion of WAKE.
     Any ship close in would be lost amongst these "pips".

0353 With searchlight still on dived at a range of 7000 yards to
     close submerged and be in position to see what is going on
     come daylight in one hour.

0412 Searchlight still on but nothing in sight through periscope.

0415 Sound picked up screws 20° on port bow. Nothing visible on
     bearing through periscope. Screws (100 R.P.M.) drew
     down port side and since nothing was in sight assumed it
     at the time it could be a submerged submarine.

0504 At periscope depth sighted lugger 010° T close to bearing
     where screws faded out.

0545 Sighted second lugger. The two luggers appear to be patrol-
     ling 3000 yards South of boat landing. Nothing else in
     sight. Secured from battle stations. The unusual events
     of the morning so far point to the f act that something
     beyond ordinary routine is going on. The two luggers have
     been seen about every day around 1600 running in the vicinity
     of the reef at mouth of lagoon but this is something new.

0600 - 0900 Attempting to close boat landing undetected by patrolling
     luggers.

- 34 -

— page 283 —
U.S.S. SEALION - Report of SIXTH War Patrol (cont'd.)
28 June 1945 (cont'd.)

0930 From 2500 yard range, boat landing shows no signs of activity.
     Looks exactly as it has from observation during past few days.

0935 Signal tower on Southwest tip of WAKE ISLAND hoisted two
     speed flags on one halyard. Sea is glassy smooth with three
     foot swell and it is hard to believe we have not been sighted,
     but the luggers continue running back and forth on same line
     as before.

1005 Two motor launches showed up from someplace and commenced
     milling around.

1020 Signal tower hauled down the signal that was flying.

1045 Plane contact #125. Sighted PB4Y-2 through periscope about
     four miles bearing 330° T.

1115 Luggers and small boats disappeared. It was all very confus-
     ing and disappointing. I am sure something was going on that
     we weren't in on. During the past six days we have been
     patrolling alone in, I am now positive we must have been
     sighted. The sea was at all times glassy, but in order to
     observe the beach at all, considerable periscope exposures
     were made. The luggers also, I believe, were around each
     day solely as spotters. At times they would pass fairly
     close and even though they didn't act like they saw us, I am
     positive they did and were just playing cagey. Chalk up a
     minor victory for the Japs!

1200 Position Lat. 19° 15' N.
     Long. 116° 34' E.

1905 Surfaced and commenced patrolling Northwestern approaches.

29 June 1945

     Weather unchanged.

0525 Dived for submerged patrol off approaches to WAKE, two miles
     off the reef.

1049 Plane contact #216. Sighted PB4Y-2 through periscope bearing
     300° T, 4 miles. He was flying over the Island.

1200 Position Lat. 19° 15' N.
     Long. 166° 34' E.

1912 Surfaced and commenced patrolling approaches to WAKE 6 miles
     from the island.

1930 Sighted flashing white light on the island bearing 045° T.

     - 35 -

— page 284 —
U.S.S. SEALION - Report of SIXTH War Patrol (cont'd.)
30 June 1945
    Wind and sea unchanged. Sky overcast.
0400 Received orders from ComSubPac to leave station tonight.
0501 Dived for submerged patrol two miles off West approaches to
    WAKE.
1200 Position Lat. 19° 20' N.
    Long. 166° 33' E.
1905 Surfaced. Set course for joint zone enroute PEARL.
1 July 1945
    Moderate sea; fresh breeze from the NorthEast.
0229 Sent SEALION's #4.
0500 Entered joint zone enroute PEARL HARBOR.
1200 Position Lat. 21° 00' N.
    Long. 169° 55' E.
2 July 1945 ALL TIMES MIKE (-12)
    Rough sea; moderate breeze from the East.
0100 Set clocks ahead 1 hour to -12 time.
0643 Trim dive.
0702 Surfaced.
1200 Position Lat. 20° 44' N.
    Long. 175° 12' E.
1212 Sighted single mast of ship bearing 078° T. Maneuvered to
    avoid.
1228 Sighted a second mast bearing 154° T. Determined both ships
    to be two AP's. Ships challenged us and we answered by
    light and grenade.
1335 Lost sight of ships, bearing 240° T.
2400 Set all clocks back 24 hours to YOKE time (plus 12).
2 July 1945 ALL TIMES YOKE (plus 12)
0815 Crossed International Date Line.
    - 36 -

— page 285 —
U.S.S. SEALION - Report of SIXTH War Patrol (cont'd.)

2 July 1945 (cont'd.)
1200 Position Lat. 20° 55' N.
          Long. 179° 03' W.
2200 Set clocks ahead one hour to XRAY time (plus 11).

3 July 1945 ALL TIMES XRAY.
          Moderate seas; light winds from the East.
0843 Trim dive.
0902 Surfaced.
1200 Position Lat. 20° 47' N.
          Long. 173° 13' W.

4 July 1945 ALL TIMES WILLIAM (plus 11)
0400 Set clocks ahead one hour to WILLIAM time (plus 11).
0841 Trim dive.
0856 Surfaced.
1025 Plane contact #127. Sighted PB4Y-2 bearing 160° T range 8
          miles. Lat. 20° 53' N.
                    Long. 167° 05' W.
1200 Position Lat. 20° 52' N.
          Long. 167° 28' W.
1218 Sighted periscope shears of West bound U.S. submarine
          bearing 048° T. Attempted to establish recognition on SJ
          radar without success. Distance too great for searchlight.
1245 Lost sight of submarine bearing 327° T.
2120 Picked up SJ radar interference bearing 075° T.
2144 Exchanged recognition and calls with West bound U.S.S. TULE
          (SS403).

5 July 1945 ALL TIMES VICTOR - WILLIAM (plus 9½).
0100 Set clocks ahead ½ hour to VICTOR - WILLIAM time (plus 9½).
1200 Position Lat. 20° 57' N.
          Long. 162° 11' W.

- 37 -

— page 286 —
U.S.S. SEALION - Report of SIXTH War Patrol (cont'd.)

5 July 1945 (cont'd.)

1608 Held man overboard drills.

1715 Secured from man overboard drills.

1723 Trim dive.

1736 Surfaced.

6 July 1945

     Calm seas. No wind.

0200 Picked up U.S.S. TUNNEY's radar interference bearing 275° T.

0525 Rendezvoused and exchanged recognition signals with escort,
     PC47. Lat. 21° 00' N.
             Long. 158° 50' W.

0630 SEALION, TUNNEY and escort (PC47) rendezvoused and set
     course for PEARL HARBOR.

1000 Arrived S/M Base, PEARL HARBOR, T.H.

- 37A -

— page 287 —
U.S.S. SEALION - Report of SIXTH War Patrol (cont'd.)

(C) WEATHER:
The weather was generally good throughout the patrol. A
change of monsoon was experienced after the first week on
station in the SOUTH CHINA SEA conforming to Sailing Directions.

(D) TIDAL INFORMATION:
Tides conformed to Sailing Directions and hydrographic data.

(E) NAVIGATIONAL AIDS:
The only navigational aid encountered was the lighthouse on
GAP ROCK in the KAIPONG ISLAND CHAIN south of HONGKONG which
is painted white and was used for cutting in our position
during daylight hours. The light was not lighted at night.

(F) SHIP CONTACTS:
No ship contacts were made on this patrol.

(G) AIRCRAFT CONTACTS:
A total of 85 aircraft contacts were made in the area (exclus-
ive of planes contacted while life-guarding). Of these, 41
were contacted by day and 44, at night. A total of 45 of the
contacts were identified as friendly by sight or by IFF. The
remainder were unidentified - no planes were identified
positively as being enemy.

Friendly night search planes were usually PBMs or B-24s flying
about 200 feet off the water. These were generally picked up
by SJ at ranges from 15 to 4 miles.

VHF was manned continuously and used as another means of
identification. As soon as a plane was contacted we called
him on the VHF and in a good percentage of the contacts had
successful communication.

(H) ATTACK DATA:
No targets were encountered and no attacks made.

(I) MINES:
Encountered two floating mines of which both were sunk by gun
fire without exploding.

The first mine was encountered on 5 May 1945 in Lat. 21° 33' N,
Long. 114° 35' E. It was a hornless barrel shaped mine
resembling type #92 illustrated in Vol. I #36 Weekly Intell-
igence, page 21. This mine was sunk by rifle fire.

- 38 -

— page 288 —
U.S.S. SEALION - Report of SIXTH War Patrol (cont'd.)

(I) MINES (cont'd.)

The second mine was encountered on 23 May 1945 in Lat. 21° 17' N,
Long. 118° 04' E. It was identified as a horned mine, type 140
illustrated in Mine Identification Manual O.P. #898 page #6.
The mine was sunk with dummy loaded 20 MM gun fire.

(J) ANTI-SUBMARINE MEASURES AND EVASION TACTICS:

Many night-flying planes were encountered in the area of which
the majority were identified as friendly. On diving for one
unidentified night contact a white float flare was dropped in
the vicinity. Since no bombs were dropped on any of the close
unidentified contacts it is believed they were probably friendly
search planes.

(K) MAJOR DEFECTS AND DAMAGE:

Hull and Machinery:-

Hull - No major defects or damage were noted or sustained.

Machinery - 5 July 1945 - Experienced piston seizure in units
#5 and #13, Number 2 main engine, due to bearing failure. Cause
of casualty undetermined. This occured on next to last day of
patrol.

Ordnance and Gunnery:-

No torpedoes were fired. The 20 MM guns were used to sink two
mines and gave satisfactory performance.

(L) RADIO

Major Defects and Damage:-

No major defects were encountered and no damage was sustained
by the radio gear.

Radio Communications:-

Transmissions of Bakers by SUBIC radio station were superior to
that of Radio PERTH. Reception on 8000 and 12000 bands in this
area was good except for the period between 1500 - 2200 GCT,
but by shifting to the 4000 band the signals were easily read-
able. Considerable interference and fading was present at this
time. Poor reception from Radio PERTH was also encountered
from 0300 to 0700 GCT. Enroute GUAM the receivers were changed
to Radio HONOLULU and excellent reception has been obtained
from this station. Slight fading was noticed at 0600 and 1800
GCT which disappeared enroute PEARL HARBOR, T.H.

- - 39 -

— page 289 —
U.S.S. SEALION - Report of SIXTH War Patrol (cont'd.)
(L) RADIO (cont'd.)

Radio Communications:-

The employment of receivers was as follows:

RAI was set up on Bakers, Fox schedules.
RBH was guarding Wopaco Frequencies and 4155 Kcs.
Kingsley was set up on lifeguard frequency.
VHF manned continuously in area and enroute through areas
covered by friendly search planes.

(M) RADAR:

(1) SJ operated satisfactorily.

(2) SD was keyed intermittently day and night and gave very
satisfactory results.

(N) SONAR GEAR:

No defects were noted or damage sustained. Although no sound
contacts were made, sound conditions appeared to be very good
in the Area whenever a listening watch was set.

(O) DENSITY LAYERS:

No deep dives were made.

(P) HEALTH, FOOD AND HABITABILITY:

Health of the crew was excellent. Food was ample and well
prepared except for the trip from WAKE to PEARL HARBOR when
it got a little scarce. Meat ran out three days out of PEARL
HARBOR.

The only all day dives were made off WAKE when we had 12
officers and 77 men plus 10 Filipino passengers. CO₂ absorbent
was spread during all dives and even though one was of 15½
hours duration no discomfort was experienced.

(Q) PERSONNEL:

(a) Number of men detached after previous patrol 10
(b) Number of men on board first half of this patrol 76
(c) Number of men detached after first half of this patrol 4
(d) Number of men on board second half of this patrol 77
(e) Number of men qualified at start of patrol 66
(f) Number of men qualified at end of patrol 77
(g) Number of unqualified men making first patrol 4

- 40 -

— page 290 —
U.S.S. SEALION - Report of SIXTH War Patrol (cont'd.)

(C) PERSONNEL (cont'd.)

- All hands performed their duties in a commendable manner, and
  at all times were cheerful and enthusiastic. In spite of a
  long and unproductive patrol the morale was at all times at a
  high level.

(R) MILES STEAMED - FUEL USED:

SUBIC to Area             1,046 miles     12,400 gals.
In Area                   6,427 miles     45,600 gals.
Area to SUBIC               878 miles      9,770 gals.
SUBIC to GUAM             2,689 miles     27,869 gals.
GUAM to WAKE ISLAND       1,885 miles     25,000 gals.
In Area (off WAKE)        1,663 miles     20,800 gals.
WAKE to PEARL             2,004 miles     32,000 gals.

Totals                   16,592 miles    173,439 gals! *

* Received at SUBIC       37,399 gals.
  Received at GUAM        54,782 gals.

Total                     92,181 gals.

(S) DURATION:

Days enroute to Area         3½
Days in Area                 27
Days enroute to SUBIC BAY    2½
Days enroute to GUAM         7½
Days enroute to WAKE          5
Days in Area                 11
Days enroute PEARL HARBOR     6
Days submerged                9

(T) FACTOR OF ENDURANCE REMAINING:

           Torpedoes         Fuel         Provisions     Personnel

             *14             30,000 gals.      0              0

* 16 Mk. 14-3A, 6 Mk. 18-2, and 3 Mk. 27 torpedoes were trans-
  ferred to the U.S.S. HOWARD W. GILMORE on 3 June 1945. 14
  Mk. 23 torpedoes were taken aboard the same day.

- 41 -

— page 291 —
U.S.S. SEALION - Report of SIXTH War Patrol (cont'd.)
(U) COMMUNICATIONS, RADAR AND SONAR COUNTERMEASURES
RADAR COUNTERMEASURES
(1) Intercept of Enemy Signals:

(A) Time and location: 2045 (-9ZT) 5/9/45
L 21° 40.5' N Long. 114° 30' E.
Signal Characteristics: 162/650/2
Type: Airborne SS.

(B) Time and location: 2120 (-9ZT) 5/9/45
L 21° 38' N. Long. 114° 21' E.
Signal Characteristics: 167/500/2
Type: LAnd based AS.

(C) Time and location: 2210(-9ZT) 5/9/45
L 21° 38' N. Long. 114° 20' E.
Signal Characteristics: 150/600/2-3
Type: Airborne SS.

(D) Time and location: Day and night reception intermittently
during period 5/10/45 to 5/30/45 while
in area southeast of HONGKONG. Believe
station located at HONGKONG.
Signal Characteristics: 160/520-650/3
Type: Shore based AS.

- 42 -

— page 292 —
U.S.S. SEALION - Report of SIXTH War Patrol (cont'd.)
(U) COMMUNICATIONS, RADAR AND SONAR COUNTERMEASURES: (cont'd.)

(E) Time and location: 2350 (-9ZT) 5/12/45
                                    L 21° 13.5' N. Long. 115° 3.5' E.
    Signal Characteristics: 180/160/2
    Type: Airborne SS.
    [Image of a signal waveform]

(F) Time and location: 2307 (-9ZT) 5/19/45
                                    L 21° 23' N., Long. 114° 30.5' E.
                                    2124 (-9ZT) 5/21/45
                                    L 21° 38' N., Long. 114° 41' E.
    Signal Characteristics: 175/300/5
    Type: Believed to be MK. III IFF, Airborne.
    [Image of a signal waveform]

(2) Jamming own and enemy:
    (a) No jamming was initiated and none encountered.
(3) Deception own and enemy:
    (a) No deception was initiated and none was encountered.
(4) Scope of photographs of targets of interest or unusual
    phenomena:
    (a) No photographs were taken.

COMMUNICATION COUNTERMEASURES
(1) No communication countermeasures, i.e., interception of
    enemy signals, jamming, or deception own or enemy were
    initiated or encountered.

SONAR COUNTERMEASURES
(1) No enemy sonar gear was encountered.

(V) REMARKS:
    None.

- 43 -

— page 293 —
FB5-43/A16-3
Serial: N-0104
C-O-N-F-I-D-E-N-T-I-A-L

FIRST ENDORSEMENT to
U.S.S. SEALION (SS315) Conf.
Ltr. SS315/A16-3/FO, Serial
019-45 of 6 July 1945.

From: The Commander Submarine Division FORTY-THREE.
To : The Commander-in-Chief, United States Fleet.
Via : (1) The Commander Submarine Squadron TEN.
      (2) The Commander Submarine Force, Pacific Fleet.
      (3) The Commander-in-Chief, U.S. Pacific Fleet.

Subject: U.S.S. SEALION (SS315) - Report of War Patrol Number Six -
         Comments on.

1. The Sixth War Patrol of the USS SEALION was conducted off
HONGKONG and off Formosa during the period 30 April - 6 July 1945.

2. The primary task assigned during this patrol was lifeguard
duty. Otherwise, the patrol was characterized by many plane contacts, both
day and night, and the sinking of two floating mines. No contacts with
suitable targets were made.

3. The SEALION is now enroute Navy Yard overhaul on the West
Coast.

4. The Division Commander congratulates the Commanding Officer,
officers and crew of the SEALION upon this arduous and valuable patrol.
The presence of the SEALION on Lifeguard Station was undoubtedly a reassur-
ance to our aviator friends.

[SIGNATURE: R. B. LERCHENSON]
R. B. LERCHENSON.

SUBMARINE DIVISION FORTY-THREE
Care of Fleet Post Office,
San Francisco, California.
6 July 1945.

— page 294 —
SUBMARINE SQUADRON TEN
Fleet Post Office
San Francisco, California
11/rhb
8 July 1945

FC5-10/A16-3
Serial: 0158

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

SECOND ENDORSEMENT to
U.S.S. SEALION (SS315)-
Report of War Patrol
Number Six.

From: The Commander Submarine Squadron TEN.
To : The Commander-in-Chief, UNITED STATES FLEET.
Via : (1) The Commander Submarine Force, PACIFIC
FLEET, Administration.
(2) The Commander-in-Chief, U.S. PACIFIC FLEET.

Subject: U.S.S. SEALION (SS315) - Report of War Patrol
Number Six.

1. Forwarded, concurring in the remarks of the
Commander Submarine Division FORTY-THREE.

2. The Squadron Commander congratulates the
Commanding Officer, officers and crew of the U.S.S. SEALION
upon the completion of that vessels' Sixth War Patrol.

[SIGNATURE: G. E. PETERSON]
G. E. PETERSON.

— page 295 —
[HANDWRITTEN: F4254]
mr
C4760
SUBMARINE FORCE, PACIFIC FLEET

Care of Fleet Post Office,
San Francisco, California,
17 July 1945.

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

FF12-10(A)/A16-3(18)
Serial 01791

CONFIDENTIAL

THIRD ENDORSEMENT to
SEALION Report of
Sixth War Patrol.

COMSUBSPAC PATROL REPORT NO. 819
U.S.S. SEALION - 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. SEALION (SS315) - Report of Sixth War Patrol
| (30 April to 6 July 1945).

1. The sixth war patrol of the SEALION, under the command of Lieutenant
Commander Charles F. Putman, U.S. Navy, was conducted in the Northern part of the
South China Sea, off Hong Kong and off Wake Island. The SEALION was assigned life-
guard duties as well as offensive patrol.

2. During this long arduous patrol the SEALION was afforded no oppor-
tunity to inflict damage upon the enemy nor to effect rescue. The Force Commander
wishes the SEALION better luck next patrol.

3. Award of Submarine Combat Insignia for this patrol is not author-
ized.

MERRILL COMSTOCK.

DISTRIBUTION:
(Complete Reports)
Cominch | (7)
CNO | (5)
Cincpac | (6)
JICPOA | (1)
AdICPOA | (1)
Comservpac | (1)
Cinclant | (1)
Comsubslant | (8)
S/M School, NL | (2)
CO, S/M Base, PH | (1)
Comsopac | (2)
Comsowespac | (1)
Comsubs7thFlt (Fwd Echelon) | (2)
Comsubs7thFlt (Rear Echelon) | (2)
Comnorpac | (1)
Comsubspac | (3)
ComsubspacSubordcom | (20)
SUBAD, MI | (2)
ComsubspacSubordcom | (3)
All Squadron and Div.
Commanders, Pacific | (2)
ComSubOpTraGroup, Balboa (Airmail) | (5)
Subtrainpac | (2)
All Submarines, Pacific | (1)

[STAMP: EXTRA]
[STAMP: SORC.]
[STAMP: PHOTO-LAB]
[STAMP: ORIGINAL]
[STAMP: MICRO]
[STAMP: OP-16]
[STAMP: RETURN TO F-4253]

[SIGNATURE: E. L. Hynes, 2nd]
E. L. HYNES, 2nd,
Flag Secretary.

— page 296 —
C-O DECLASSIFIED-A-L                                                              [HANDWRITTEN: Original .203]
                                                                                                20. September 1944.

From:           Commander Task Group 17.17.
To :            Commander-in-Chief U. S. Fleet.
Via :           (1) Commander Task Force 17.
                (2) Commander-in-Chief, Pacific Fleet.

Subject:        Patrol Report of Task Group 17.17.

Reference:      (a) Task Force Seventeen Operation Order 272-44.
                (b) Task Group 17.17 Supplementary Patrol
                    Instructions.
                (c) Report of U.S.S. GROWLER TENTH WAR PATROL.
                (d) Report of U.S.S. SEALION SECOND WAR PATROL.
                (e) Report of U.S.S. PAMPANITO THIRD WAR PATROL.

Enclosure:      (A) Revised Communication Plan. (To ComSubsPac only).
                (B) Grid of Rotating Area showing Patrol Stations.
                    (To ComSubsPac only).

                1.
                In as much as the destinations of the submarines
upon completion of patrol vary, no attempt at a complete report
will be made. Some of the pertinent points will be covered mainly
from the standpoint of communications. Enclosures (A) and (B)
are forwarded herewith.

                2.
                During the two day period which was required to
effect renewal of GROWLER'S fathometer head, many discussions were
held. Enclosures (D) to (G) inc. of the Task Group Commander's
Supplementary Patrol Instructions were promulgated. All three of
the important areas of the Rotating Patrol were blocked out in
squares 20 miles on a side. The squares in each area were given
horizontal and vertical coordinates in grid form - See Enclosure
(B).

                3.
                This group, known as "Bens Busters", departed Midway
17 August 1944 and operated in accordance with references (A) and
(B). Communication drills were held and some changes to the plan
were made. Only the 2,000 Kc band will be used for communication
within this Group. The VHF was found to be effective to 7,500
yards maximum. Recognition by radar interference keying is supple-
mented by an individual ship identification within this Group. Com-
munication by radar may be resorted to during coordinated attacks.
It is necessary for each unit to have four high frequency receivers
in order to guard HAIKU, CHINA, AREA FREQUENCY and the Group
frequency.

                4.
                Speed of advance was increased to 12 knots as sea
was light and two-engine speed would put us in our individual
areas on the twenty-ninth in accordance with serial 37. Interval
was changed to 10 miles to facilitate communication. Changed
PAMPANITO 29 August position to FOX TWO.

93543 [STAMP: FILMED] - 1 -

— page 298 —
C-O-N-F-I-D-E-N-T-I-A-L Task Group 17.17 Patrol Report.

2150 SEALION reported results of attacks: 1 AP - Sunk;
     1 DD "UN-1" - Sunk; 1 AG - damaged and possibly sunk.
     19 torpedoes fired. SEALION should have sent a
     contact report.

7. ComSubPac gave SEALION permission to get more torpedoes
   at SAIPAN and rejoin us. After many attempts sent a
   rendezvous message to PAMPANITO "blind".

8. 2 September 1944.

     After many attempts sent two GROWLER daily patrol
     stations to PAMPANITO "blind".

2325 Sent above message to PAMPANITO by SJ radar.

9. 3 September 1944.

     Experienced usual static and jamming on the
     2,000 Kc band - could not raise PAMPANITO.

10. 9 September 1944.

     Attempted to contact PAMPANITO for two hours on
     various frequencies.

11. 10 September 1944.

0212 Requested ComSubPac to have PAMPANITO rendezvous
     with GROWLER. SEALION also got rendezvous from
     ComSubPac.

12. 11 September 1944.

1955 SEALION and PAMPANITO rendezvous.

     GROWLER and SEALION made rendezvous. Orally instruc-
     ted him as follows: "Use 2006 Kcs until zero hours
     zebra 14th. If jammed, shift to 2880 Kcs. Use
     channel 144 for contact reports. Course 213(T),
     speed 13 knots until 0200; then reverse. SEALION
     open out 8 miles to the west, PAMPANITO 8 miles to
     the east of GROWLER. Spend the 12th as follows:
     GROWLER-George 23, SEALION-How 23, PAMPANITO - Fox
     23. Rendezvous 1400 Zebra 13th at 20-30 N, 117-40 W.
     Whoever makes contact send contact report and attack!
     Good luck." He has 24 torpedoes.

- 3 -
[HANDWRITTEN: 3]

— page 299 —
C-O-N-F-I-D-E-N-T-I-A-L Task Group 17.17 Patrol Report.
2135 Exchanged radar recognition with PAMPANITO.

2200 At rendezvous 18-38 N, 115-20 E on course 213(T) at
     13 knots. Orally instructed the PAMPANITO as above.
     He has 24 torpedoes.

2248 Scouting line formed.

13. 12 September 1944.

0107 GROWLER made contact with convoy consisting of:
     9 ships, 5 escorts. If other boats are in position
     they should make contact very soon. GROWLER should
     have sent contact report immediately.

PAMPANITO made contact.

0153 After tracking convoy sent contact report.
     PAMPANITO only receipted. PAMPANITO sent his
     contact report on same convoy. Believe SEALION
     should have made contact as we were on convoys
     starboard bow and SEALION was on our starboard
     beam, heading toward them.

0155 GROWLER attacked; Results: 1 DD, "UN-1" Sunk;
     2 large AK's - damaged.

0215 Sent out report that GROWLER sank a DD in order to
     encourage the other two boats. SEALION only
     receipted. GROWLER erred in not mentioning that she
     had drawn 2 escorts away from the convoy and had
     damaged 2 AK's.

0218 GROWLER chased for over ½ hour by 2 PC's. This,
     together with sinking of DD should leave the
     convoys starboard flank exposed to PAMPANITO and
     SEALION.

0219 Retransmitted the 0153 contact report in wolf
     pack code. Both SEALION and PAMPANITO receipted.

02 0253 GROWLER saw 3 bright flashes of explosions to
     westward. Much tracer fire followed. PAMPANITO
     attacking? Making end around.

0410 Friendly interference noted on GROWLER SJ -
     SEALION?

     - 4 -
[HANDWRITTEN: 4]

— page 302 —
[HANDWRITTEN: F4254]
FF12-10/A16-3(15) SUBMARINE FORCE, PACIFIC FLEET [HANDWRITTEN: hch]
Serial 02457 [HANDWRITTEN: R-w/s] Care of Fleet Post Office,
CONFIDENTIAL San Francisco, California,
6 November 1944.
[HANDWRITTEN: 11-20-44.] 11 02718

FIRST ENDORSEMENT to NOTE: THIS REPORT WILL BE
Patrol Report of Thirteenth DESTROYED PRIOR TO
Coordinated Attack Group. ENTERING PATROL AREA.

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

Subject: Report of Thirteenth Coordinated Attack Group Consist-
ing of the U.S.S. SEALION (SS315), the U.S.S. PAMPANITO
(SS383) and the U.S.S. GROWLER (SS215).

1. The thirteenth coordinated attack group consisted of
the U.S.S. SEALION, the U.S.S. PAMPANITO, and the U.S.S. GROWLER, with
Commander T. B. Oakley, Jr., U.S. Navy, as group commander and com-
manding officer of the GROWLER. The patrol was conducted in areas be-
tween Luzon and Formosa. Further details are contained in the
GROWLER's tenth, the SEALION's second, and the PAMPANITO's third war
patrol reports.

2. This splendid patrol included the memorable attacks on
convoys on 31 August and 12 September, and the rescue of British and
Australian prisoners of war who were being transported from Singapore
to the Empire when the Japanese transport in which they were embarked
was sunk. The performances of all three of these submarines during
this group patrol are among the outstanding performances of the sub-
marine warfare to date.

3. The Commander Submarine Force, Pacific Fleet, congratu-
lates the group commander, the commanding officers, officers, and
crews of the GROWLER, SEALION, and PAMPANITO for this outstanding
patrol. The following damage was inflicted upon the enemy by this
group:

S U N K
1 - Large AP (PRESIDENT HARRISON) - 10,500 tons (PAMPANITO Attack
(EC) No. 1)
1 - Large AK (BORDEAUX MARU Type) - 6,600 tons (PAMPANITO Attack
(EU) No. 1)
1 - Large AK (WALES MARU Type)(EU) - 6,500 tons (PAMPANITO Attack
No. 1)
1 - Large AO (NIPPON MARU Type) - 10,000 tons (SEALION Attack
(EU) No. 2)
1 - DD (UN-1 Class) (EC) - 2,300 tons (SEALION Attack
No. 3)
1 - Large AP (RAKUYO MARU Type)(EU) - 10,000 tons (SEALION Attack
No. [HANDWRITTEN: EXTRA] ORIGINAL
1 - Large AP (RAKUYO Type) (EC) - 9,400 tons (SEALION Attack MICRO
No. [UNCLEAR: 3]) PHOTO-LAB OP-16
[STAMP: FILMED] RETURN TO F-4253
- 1 - [HANDWRITTEN: 7]

— page 303 —
hch
SUBMARINE FORCE, PACIFIC FLEET

FF12-10/A16-3(15)                                  Care of Fleet Post Office,
                                                  San Francisco, California,
Serial 02457                                      6 November 1944.

CONFIDENTIAL

FIRST ENDORSEMENT to                              NOTE: THIS REPORT WILL BE
Patrol Report of Thirteenth                       DESTROYED PRIOR TO
Coordinated Attack Group.                         ENTERING PATROL AREA.

Subject:          Report of Thirteenth Coordinated Attack Group Consist-
                  ing of the U.S.S. SEALION (SS315), the U.S.S. PAMPANITO
                  (SS383) and the U.S.S. GROWLER (SS215).

— page 305 —
[HANDWRITTEN: 99]
[HANDWRITTEN: POW's]
[HANDWRITTEN: 349] [HANDWRITTEN: Opr. Rpt.]
U.S.S. SEALION (SS315)

SS315/A8                                        c/o Fleet Post Office,
Serial (08-44)                                  San Francisco, Calif.

                                                24 September 1944.
[STAMP: DECLASSIFIED]
C-O-N-F-I-D-E-N-T-I-A-L

From:           The Commanding Officer.
To :            The Commander Submarine Force, Pacific Fleet.

Subject:        Rescue of Allied Prisoners of War Aboard the
                RAKUYO MARU.

Reference:      (a) SEALION secret ltr. SS315/A8 serial 001-44 of
                    25 September 1944.
                (b) SEALION conf. ltr. SS315/S85 serial 09-44 of
                    25 September 1944.

Enclosure:      (A) Descriptive List of Survivors (2 copies).
[HANDWRITTEN: Crupes BOX #32/1-39RS #]
                1.
                U.S.S. SEALION participated in rescue operations
with U.S.S. PAMPANITO on the evening of 15 September (east longitude
date) in latitude 18-41 N.; longitude 114-05 E. By nightfall, fifty-
four (54) English and Australian prisoners of war had been rescued.
Four of those rescued died before SEALION arrival in SAIPAN on 20
September 1944.
[HANDWRITTEN: FILE]
                2.
                U.S.S. PAMPANITO and U.S.S. SEALION were patrolling
the East China Sea on scouting line, 000° T - 180° T, distance
approximately twenty miles on course 090° T at speed of twelve
knots. At 1700 (I), 15 September 1944, SEALION was at latitude
19-02 N., longitude 114-19 E. At this time SEALION received
PAMPANITO'S request for assistance in the rescue of English and
Australian prisoners of war. PAMPANITO then bore 225° T, distance
twenty-eight (28) miles from SEALION. SEALION immediately
increased speed and changed course to head for the scene of the
rescue.
[HANDWRITTEN: JACKET # Opr.]
                3.
                Debris and wreckage were first sighted at 1750 (I)
beginning at latitude 18-44 N., longitude 114-09 E., extending
southwestward to the horizon. A few minutes later SEALION passed
through a heavy diesel oil slick and at 1820 (I), the first of many
dead bodies floated by. SEALION now was about forty (40) miles to
the northwest of the torpedo attack made on a large convoy on the
morning of 12 September. The periscope sheers of PAMPANITO were
sighted bearing 225° T, indicating that the wreckage spread over
an area at least ten miles square. The first group of living,
shouting, beckoning survivors was sighted at 1831 (I), an hour
before sunset.

                                                                5200.9
                                                [STAMP: DECLASS]
                                                of 27
- 1 -                                           BY [UNCLEAR: 91C]
                                                DATE [UNCLEAR: 11-20-83]

— page 307 —
U.S.S. SEALION (SS315)
SS315/A8
Serial ( 08-44 ) (cont'd.)
[HANDWRITTEN: C] DECLASSIFIED A L
Subject: Rescue of Allied Prisoners of War Aboard the
RAKUYO MARU.
24 September 1944.

— page 308 —
U.S.S. SEALION (SS315)

SS315/A8
Serial ( 08-44 ) (cont'd.) 24 September 1944.
[STRIKETHROUGH: C O N F I D E N T I A L]
Subject: Rescue of Allied Prisoners of War Aboard the
RAKUYO MARU.

— page 309 —
U.S.S. SEALION (SS315)

SS315/A8
Serial ( 08-44 ) (cont'd.)
[HANDWRITTEN: C O N D E C L A S S I F I E D L]
Subject: Rescue of Allied Prisoners of War Aboard the
         RAKUYO MARU.

— page 310 —
U.S.S. SEALION (SS315)

SS315/A8
Serial ( 08-44 ) (cont'd.)
DECLASSIFIED
C O N F I D E N T I A L

24 September 1944.

Subject: Rescue of Allied Prisoners of War Aboard the
RAKUYO MARU.

His leadership was such as to inspire in his volunteer assistants an
enthusiasm and spirit of self sacrifice which was far and beyond
normal standards. His professional competency was clearly demonstrated.
His devotion to the care of the survivors was marked by a disregard
for his own personal welfare. The efficacy of his care and supervision
of treatment of the survivors under the crowded and trying conditions
on board SEALION was reflected in the vastly improved condition of
the survivors when SEALION reached SAIPAN.

It is recommended that WILLIAMS be advanced to
Chief Pharmacist's Mate (Acting Appointment) in recognition of his
meritorious conduct as provided for in ALNAV 163 (1941).

[SIGNATURE: E. T. Reich]
E. T. REICH.

— page 311 —
LIST OF SURVIVORS RESCUED 15 SEPTEMBER, 1944 IN
LATITUDE 18-40 N, LONGITUDE 114-05 E

AUSTRALIAN IMPERIAL FORCES

R.A. BLAKE, Gunner, VX20802
13th Battery, 4th Anti-Tank Regiment
Woorndoo, Mortlike,
Victoria, Aust.

L. J. BOLGER, Gunner, NX56381
2nd 15th Field Regiment
Bertha St, Fairfield,
Sydney, NSW, Aust.

LYLE BROWN, Driver, SX8791
2nd 2nd Reserve Motor Transport Div.
Orroroo,
South Aust.

E. F. BUEKNER, Pvt, VX23638
2nd 2nd Australian Pioneer Battalion
Sunny Dale, Tungimah,
Victoria, Aust.

N. D. CALVERT, Pvt, QX22922
2nd 29th Infantry Battalion
Nanango,
Queensland, Aust.

FRANK CLARKSON, Pvt, VX21783
2nd Australian Pioneers
Alexandra,
Victoria, Aust.

VICTOR CLIFFORD, Pvt, VX20904, Hdq.Co.
2nd 2nd Pioneer Battalion
116 Highsett St,
Richmond, Melbourne, Aust.

A. A. CLIVE, Cpl, NX32668
2nd 18th Battalion, 8th Division
35 Crowsnest Rd, Waverton
Sydney, NSW, Aust.

M. DEGUARA, Driver, QX18570
2nd 3rd Motor Transport Company
130 Nebo Road, Mackay,
Queensland, Aust.

T. L. DOWNEY, Pvt, VX26308
2nd 29th Battalion
95 Seymour St, Trirlolgon
Victoria, Queensland, Aust.

GRAHAM CAGE, Driver, SX8023
Ammunition Sub Pack, 8th Division.
102 Gray St, Adelaide,
South Austrailia.

J. L. HARRIS, Pvt., QX18665
2nd 26th Battalion
Bakers Creek, Via Mackay,
Queensland, Austrailia.

F. W. HORSBURGH, Spr, VX54298
2nd 10th Field Company
21 McConnell St, Kensing-
ton V-1, Melbourne,
Victoria, Aust.

T. P. JOHNSON, Signalman, NX58915
8th Austrailian Division
Railway St, Dungog,
N.S.W., Aust.

L. D. KEARNEY, Gunner, 84236
2nd 4th Machine Gun Battalion
Mintaro,
South Aust.

-1-

— page 312 —
AUSTRALIAN IMPERIAL FORCES (CONTINUED)
R. E. LAWS, Pvt, NX18368
2nd 18th Battalion
79 Burke St.,
East Sydney, Aust.

N. A. NUTLEY, Gunner, QX17951
2nd 10th Field Regiment, 8th Div.
Warrill View,
Queensland, Aust.

J. M. ROSS, Driver, VX24698
105th General Transport Co.
14 Viva St., Glaniris SA6
Melbourne, Victoria, Aust.

ALFRED SING, Pvt, VX16424
2nd 4th Machine Gun Battalion
293 Duke St., Northam,
Western Australia.

C. G. SPRAGUE, Pvt, VX54602
2nd 2nd Pioneer Battalion
64 Rennie St., Coburg,
Melbourne, Aust.

ROYAL AUSTRALIAN NAVY
ROBERT COLLINS, Able Seaman, 22177
H.M.A.S. PERTH
131 Lindsey St., Hamilton
New Castle, NSW, Aust.

J. C. HOUGHTON, Able Seaman, 23719
H.M.A.S. PERTH
Worthing St., Wynnum Cent.
Queensland, Aust.

ROYAL AUSTRALIAN AIR FORCE
N. C. DAY, 35423
Leading Air Craftsman Armourer
No. 1 Reconnaissance and Bomber Squadron.
Nidgury Downs, Byrock
NSW, Aust.

BRITISH ARMY
C. J. ARMSTRONG, Gunner, 1606836
85th Anti-Tank Regiment, Royal Artillery
43 Cedardale Rd., Walton,
Liverpool, England.

NORMAN ASHWORTH, Gunner, 982862
148th Field Regiment, Royal Artillery
35 Queens St., Ramsbolton
Lancashire, England.

JOSEPH BAGNALL, Pvt, 4974519
1st 5th Sherwood Forresters
41 Coton Park, Linton,
NR Burton-on-Trent,
Staffs, England.

LESLIE BAMBRIDGE, Pvt, 590132
85th Bedfs and Herts.
Brook Lane, Harrold,
Bedford, England.

-2-

— page 313 —
BRITISH ARMY (CONTINUED)

WILFRED BARNETT, Gunner, 1103042
148th Field Regiment, Royal Artillery
81 Annerley St., Penary
Main, Yorkshire, England.

RONALD CASTRO, Bombardier, 902473
135th Field Artillery, Royal Artillery
Kenthurst, Warren Rd,
Chelsfield, Kent, England

W. I. COWARD, Gunner, 937103
125th Anti-Tank Regiment, Royal Artillery
Clifton, Hawkstone Ave,
Guisley NR Leeds,
Yorkshire, England.

J. DEIGHTON, Signalman, 6028812
R.O. Corps Signalman
11 Lawes St., Bow E-3
London, England.

W. H. EMMETT, Gunner, 862267
148th Field Regiment, Royal Artillery
147 New Bedford Rd, South
Luton Bedfordshire, England

W. H. FULLER, BOMBARDIER, 1427178
31st 7th Coast Regiment, Fix Fefenses,
Malay.
54 Lascotts Rd., Bous
Park, London, N19, England.

ALEX GETZES, Gunner, 1087781
18th Division, 88th Field Artillery
6 Rae St., Sheepscar St.,
Leeps Seven, Yorkshire, Eng

GORDON GOULD, Cpl, 7635854
Royal Army Ordnance Corps
14th Section, Royal Artillery
142 Lai Village, Yardley,
Birmingham, 26, England.

E. C. HALFHIDE, Cpl, 4981054
1st 5th Sherwood Forresters
18 Foxholes Ave,
Hertfordshire, England.

ALBERT HALL, Gunner, 962445
148th Field Regiment, Royal Artillery
49 Abbey Foregate, Shrews-
bury, Shropshire, England

JACK HALLIGAN, Gunner, 964404
118th Field Regiment.
76 Jervis St., Portadown
County Armagh, Northern
Ireland.

R.E.A. HOYLAND, Gunner, 1437767
9th Coast Regiment
25 Harris Road,
Sheeraes, England.

A. H. LESLIE, Signalman, 3053601
13th Field Regiment, 11th Indian Div,
Royal Artillery.
36 Lochroatranent,
East Lothian, Scotland.

W. A. LEIGHTON, Gunner, 842476
9th Coast Regiment, Royal Artillery.
Chapel House, Gearoowlydd,
Chepstow, Manmouthshire,
England.

-3-

— page 314 —
BRITISH ARMY (CONTINUED)

C. M. LOWDEN, Gunner, 896993
88th Field Regiment

H. C. PHAROAH, Cpl, 7639917
14th Section, Royal Army Ordnance
Corps, Base Ordnance Corps, Malay
Command.

DOUGLASS ROLPH, Pvt, 5989149
5th Beds and Herts
(Died, 19 September 1944)

S. G. SIMPSON, Gunner, 11001011
16th Defence Regiment, Malay,
Royal Artillery.

L. W. SMITH, Lance Bombadier, 948854
148th Field Regiment, Royal Artillery

E. G. STARKEY, Gunner 947001
125th Anti-Tank Regiment.

W. H. STONE, Gunner, 1115610
88th Field Regiment

MARK WHEELER, Gunner, 840625
Hdqs., 9th Corps.

H. E. WILSON, Drummer, 4755432
1st 5th Sherwood Forresters
D-Company, Drill Hall Derby

ANDREW WYLLIE, Pvt, 4620751
1st 5th Sherwood Forresters

18 Cornwallis St.,
Barrow-in-Furness,
Lancashire, England.

49 Garnier St., Fratton,
Portsmouth Hants,
England.

24 Sharaly Road, St.
Albans, Herts, England.

24 Park Road, Hinckley,
Leicester, England.

174 Abbotts Road,
Abbotts Lang, Watford
Herts, England.

10 Rock Terrace, Hollywell
Lane, Glasshaughgon,
Castle Ford, Yorkshire,
England.

109 Mansfield Road,
Sutton-in-Ashfield,
Notts, England.

11 Portland Place,
Edinburgh, Scotland.

101 Loampit Vale,
Lewisham, London, SE-13,
England.

92 Hope St.,
Motherwell,
Lanarkshire, Scotland.

— page 315 —
[HANDWRITTEN: From Box #32(1-39 Series) C/W] [STAMP: - 5 JAN 1953]
[STAMP: RECEIVED]
[STAMP: OCT 4 1944]
[STAMP: 10463]

FT12-10/H2-10/(16)
Serial 02161

COMMANDER SUBMARINE FORCE
UNITED STATES PACIFIC FLEET

Care of Fleet Post Office,
San Francisco, California.
4 OCT 1944

[STAMP: DECLASSIFIED]
CONFIDENTIAL

FIRST ENDORSEMENT to
CO USS SEALION (SS315)
CONF. Ltr. Serial 08-44
dated 24 September 1944.

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

Subject: Rescue of Allied Prisoners of War Aboard the RAKUYO MARU.

1. Forwarded. Motion and still pictures taken during this inci-
dent are being forwarded by separate correspondence.

2. By copies of this endorsement, copies of the basic report are
forwarded to the Public Relations Officer, Staff Commander-in-Chief, U.S.
Pacific Fleet, and to the British Intelligence Liaison Officer, Staff Comman-
der-in-Chief, U.S. Pacific Fleet, Captain D.N.C. Tufnell, (R.N.). Suggested
operational censorship deletions are indicated by red pencil mark-
ings on the copy furnished the Public Relations Officer. Copies of still or
motion pictures that may be of possible publicity value will be forwarded as
soon as available.

3. Recommendations for awards and advancement in rating will be
handled in separate correspondence.

[SIGNATURE: C. A. LOCKWOOD, Jr.]
C. A. LOCKWOOD, Jr.

Copy to:
CO USS SEALION
Cinc JICPOA
PubRelaOff Staff CincPac
BritIntLiaOff Staff CincPac

[HANDWRITTEN: CincPac BOX #32(1-39) RS #]
[HANDWRITTEN: FILE]
[HANDWRITTEN: JACKET #]
[HANDWRITTEN: copy]

— page 316 —
[HANDWRITTEN: P/b]
IN REPLY
REFER TO
AS11/
[HANDWRITTEN: 72-5]
[STAMP: DECLASSIFIED]
[STAMP: SECRET]

[HANDWRITTEN: 15-17 Sept]
[HANDWRITTEN: 2]
U. S. S. FULTON

[HANDWRITTEN: RS 1858]
75/nkb

[HANDWRITTEN: 18R] 30 September 1944.

From: The Medical Officers.
To: The Chief of the Bureau of Medicine and Surgery.
Via: (1) The Commanding Officer.
(2) Commander Submarine Squadron EIGHT.
(3) Commander Submarine Force, PACIFIC FLEET.

Subject: Experience of Survivors from a Sunken Japanese
Transport Recovered from Life Rafts in the
South China Sea, Reports Concerning.

References: (a) BuMed Form ltr. No. 38, P3-2/A16-3 (014),
dated 4-14-42.
(b) PacFlt. ltr. No. 231-44, dated 4-30-44.

1. On the evening of 15 September 1944, the
USS SEALION (SS315) and the USS POMPANITO (SS383) rescued one
hundred and twenty-four men from the waters of the South China
Sea. On 17 September 1944, in the same general area, the
USS QUEENFISH (SS393) and the USS BARE (SS220) recovered an
additional thirty-two men. These men, Japanese prisoners of
War for two years and seven months, were being transferred from
Singapore to the Japanese home islands when their transport was
sunk early on the morning of 15 September 1944. Being refused
rescue by Japanese Men-of-War, they remained in the water,
clinging to rafts. Some were nude, but most were clad in shorts
and soiled shirts; some had life belts. They were without other
protection from the sun and had no food or water except for a
little rain water; a few caught some fish with their hands.
The sea, prior to the time they were rescued, was rough enough
to threaten their positions on the rafts. Some of the rafts
were crowded, others carried only one or two men. When space
was available, they either lay on their bellies on the rafts or
sat up, clutching one side with their hands and bracing their
feet against the opposite side to maintain their position.
Many of their companions died before rescue came. A total of
one hundred and fifty-seven men were rescued; seven of these
died later. Though a few were sailors, most of them had belonged
to either the Australian or English armies. By swimming in the
sea at intervals they had managed, until too weak to continue, to
keep their skin wet. Most of them, taken prisoner at the fall
of Singapore on 15 February 1942, had been in concentration camps.
Prior to their departure from Singapore, this particular group
of prisoners had been selected as most physically fit, all hav-
ing been free of skin diseases and all having diagnostic rectal
smears for communicable diseases.

[HANDWRITTEN: ComSubPac BOX #5559 RS #18R FILE P.2 JACKET #P/b (Personal)]
[HANDWRITTEN: SK]

-1-

— page 317 —
ThisThis is a transcription of the provided image.

[HANDWRITTEN: 816]
IN REPLY
REFER TO
[STAMP: DECLASSIFIED]
[STAMP: SECRET]

[HANDWRITTEN: P.S. 1858]

U. S. S. FULTON (AS11)
c/o Fleet Post Office
San Francisco, Calif.

Subject: Experience of survivors from a Sunken Japanese
Transport Recovered from life Rafts in the
South China Sea. Reports Concerning.

— page 318 —
[HANDWRITTEN: 8/16]
[HANDWRITTEN: R.S. 1858]

IN REPLY
REFER TO
AS11/P2-5
[STAMP: DECLASSIFIED]

U. S. S. F U L T O N (AS11)
c/o Fleet Post Office
San Francisco, Calif.

"Experience of Survivors from a sunken Japanese
Transport Recovered from Life Rafts in the
South China Sea, reports concerning."

— page 319 —
[HANDWRITTEN: P/16]

IN REPLY
REFER TO
AS11/
[STAMP: DECLASSIFIED] [HANDWRITTEN: 22-5]

[HANDWRITTEN: R3. 1858]

U. S. S. FULTON

Subject:
-----
Experience of Survivors from a Sunken Japan-
ese Transport Recovered from Life Rafts in
the South China Sea. Reports Concerning.
-----

"The four men whom we removed unconscious from
the water never did come to. They were suffering
from shock, exposure and perhaps a return of their malaria.
They had been on rafts. One of them possibly had severe internal
injuries from depth charging. I could see no external injuries.
I gave them four units of plasma and 2000 cc of glucose and sal-
ine (5% dextrose). Three of them died on the second day; the
fourth died the night of the nineteenth. If there had been a
doctor aboard at the time we recovered them, maybe he could have
done something to have saved them. One man complained of pain
in his chest. He was very emaciated and had thick and tenacious
sputum. I thought maybe he had tuberculosis."

"We cleared all crew members from the after-
battery room and from the after-torpedo room; the only crew
members allowed in these compartments, other than those helping
me, were those who had to go through to stand their watches.
The crew used the officer's head and the after-battery head.
The other head we used for the patients. Those helping me
we put into the Chief's quarters because we wanted a place where
they could sleep when off duty and because we didn't want the
rest of the crew exposed to them any more than was necessary.
The officers doubled up and the Chiefs moved into one of the
staterooms. The crew and the Officer's Steward, we used all
of our available sheets, blankets and mattress covers. The
crew donated their extra salvies, salvy shirts, undershirts, tooth-
brushes, cigarettes and the like. We received some
blankets and salvies and shirts from the USS PARE (DD370) when
alongside with Dr. SCHIFF of the USS HOLLAND (AS3).
We had plenty of food aboard for the patients. The crew and
Officers had to subsist, however, on mostly sandwiches because
the galley was always so busy. I didn't give any of the men
stimulants other than hot tea which they seemed to appreciate
the most. I had all of the medical supplies that I needed; I
could have used more twenty-four inch gauze. I had only one
urinal duck and it was constantly in use, consequently, we had
to use anything else we could find."

3.
"Concerning the rescue and subsequent care of
the fourteen men recovered by the USS PARE, Donald F. Willing S.
1/c, USN, 372 23 75, said: "I had about two and a half days
to get ready for the men. I planned to put them in the crew's
quarters, in the after-battery, using the bunks on the starboard
side, especially the middle ones. For the patients, we reserved
the number two head in the crew's quarters. We had only one

-4-

— page 322 —
[HANDWRITTEN: 816]
[HANDWRITTEN: P/6]
[HANDWRITTEN: P.E. 1858]

IN REPLY
REFER TO

U. S. S. FULTON (AS11)

c/o Fleet Post Office
San Francisco, Calif.

AS11/
[STAMP: DECLASSIFIED]
Subject: Experience of Survivors from a Sunken Japan-
ese Transport Recovered from Life Rafts in
the South China Sea. Reports Concerning.

"About noon of the same day, we started them
out on soft boiled eggs, crisp toast. In addition they received
egg nogg and ice cream. After the first twenty-four hours, and
their thirst had been eased, they began to settle down,
but it wasn't until the third day that they began to eat well.
Some of them had trouble tolerating the soft diet. One man
vomited after eating. Some had diarrhea which cleared up with bismuth and
some had indigestion after eating. We ran into a typhoon with
the ship rolling often at a twenty and thirty degree roll and many of
the men were seasick. After the first twenty-four hours, most
of them began to void and to have bowel movements. Several of
the men, after a few days, began to develop little pustules
under their skin which cleared up after drainage and painting with
alcohol. Many developed heat rash. I gave the man with the trop-
ical ulcer some sulfadiazine by mouth; shortly thereafter it came
to a head. At the time he was transferred, it was almost com-
pletely healed. Practically all of them had a fever that first
night of from 99 to 103 degrees. The next day their temperatures
were normal with the exception of two men in whom it remained
elevated to above 100 degrees and due, I thought, to shock and
extreme exposure and dehydration. One of these men had a constant
cough, but no sputum. One boy developed a high temperature which
came down in twenty-four hours, after incision and drainage of
three boils. I kept the fellow with the swollen scrotum in bed,
applied ice bags and gave him sulfadiazine by mouth. At the time
he was transferred the swelling had largely subsided and he was up
and around. Most of the men, by the third and fourth days, were
feeling well, looked much better and were up and around. None of
the men died."

"As for general treatment, I used APC cap-
sules and gave them six multi-vitamin capsules daily for three
days, cutting it down to four capsules a day thereafter. As
far as I could tell, none of these men had malaria. I didn't
give any narcotics or plasma or saline. We were short of mat-
tresses and had to cut sheets in half to make them go
around. I ran out of sulfadiazine. After the first three or
four days, I gave up trying to keep these patients isolated
from the crew. They were all exceedingly cooperative, grateful
and patient. The crew and officers helped me a great deal and
willingly gave their clothing, cigarettes and time."

-7-

— page 323 —
[HANDWRITTEN: 816]
IN REPLY
REFER TO
AS11/
[STAMP: DECLASSIFIED]

[HANDWRITTEN: 1858]
c/o Fleet Post Office
San Francisco, Calif.

U. S. S. FULTON (AS11)

Experience of Survivors from a Sunken Japan-
ese Transport Recovered from Life Rafts in
the South China Sea, Reports Concerning. ---

4. Concerning the rescue and subsequent care of
the eighteen men recovered by the USS QUEENFISH, DIXON, Harold,
311 46 90, PhMlc, USN, stated: "We knew about forty-eight hours
beforehand that we were to search for survivors. When we found
them some of the crew went over theside and pulled their rafts
alongside. They had been in the water for about six days. One
man didn't answer our shouts; we threw a life preserver, hitting
his foot, but he didn't understand. When we brought himthis raft
alongside he was in a state of collapse and was semi-conscious.
A second man was likewise unconscious; two more were semi-conscious
and disoriented and we had to lower them down the ladder. The
remaining fourteen men showed evidence of malnutrition, extreme
fatigue, exposure and immersion; all were in a deplorable physi-
cal condition. All complained of itching and burning of the
skin from the fuel oil and salt water. All had a follicular type
of skin rash, as if every pore on their skin had lifted. Many
showed pigmentation from the oil. There were three or four men
with symmetrical cutaneous sores on the neck, hands and feet with
surrounding areas of tissue atrophy which I thought to be the
cutaneous lesions of pellagra. Two of themen had large, deep
indolent tropical ulcers over the bony prominences. All had from
mild to severe conjunctivitis. Their throats were red and in
some cases the entire lining of the throat, cheeks and tongue
were reddened. One of their tongues were swollen. Their teeth
were in a deplorable condition and many had gingivitis. I didn't
see any scurvy. Many complained of heart burn, all were hungry
and thirsty. All had a marked tachycardia. I saw no evidence
of versin; probably the salt water and oil had taken care of that."
"After we got the men aboard, I used the forward
torpedo room as a sick bay, there being sixteen bunks in that com-
partment. The rest of the men I put on the deck. They used the
ship's head and shower. At first I attempted to keep them
isolated from the rest of the crew, but it was very difficult.
They did not have their own dishes. With all hands pitching in
to help, the first thing I did was to put them to bed and treat-
ed them for shock, applying external heat and giving them stimu-
lants in the form of hot coffee. I gave some of them brandy, but
it wasn't very well tolerated. Other medications given the first
day included 10 mgm. of thiamin chloride and thereafter multi-
vitamin capsules, six tablets a day for the first two days fol-
lowed by four tablets a day. They had fluids the first day, the
second day I started them on a soft diet, and by the fourth day
they were receiving their regular chow. In the first twelve hour
period, we had them all stripped and looked over."

-A-

— page 324 —
**Top right:**
[HANDWRITTEN: B.S. 1858]

**Top left:**
[HANDWRITTEN: 8/6]

**Below 8/6:**
[STAMP: DECLASSIFIED]

**Main body - Typed text:**

Subject: Experience of Survivors from a Sunken Japan-
ese Transport Recovered from Life Rafts in
the South China Sea, Reports Concerning.

— page 325 —
-10-

[HANDWRITTEN: 816]
IN REPLY
REFER TO
AS11/
[STAMP: DECLASSIFIED] [HANDWRITTEN: P2-5]
Subject: Experience of Survivors from a Sunken Japan-
         ese Transport Recovered from Life Rafts in
         the South China Sea, Reports Concerning.

— page 326 —
[HANDWRITTEN: 916]
IN REPLY
REFER TO
AS11/
12-5
DECLASSIFIED
[HANDWRITTEN: R.S. 1858]

U. S. S. FULTON

Subject: Experience of Survivors from a Sunken Japan-
ese Transport Recovered from Life Rafts in
the South China Sea, Reports Concerning.
-----
a five percent solution of saponified cresol. All blankets
were laundered, all mattresses were thoroughly aired after being
sprayed with an insecticide fortified by five percent phenol.
New pillows, mattress covers and clean clothing were provided.
When it was finally determined that the patients were free of
quarantinable diseases, the Fleet Medical Officer was notified
by dispatch.

Examination of the rescued men at the time of
arrival by the Medical Officers of the USS FULTON, was of a
necessity very brief. All the observations made by WILLIAMS,
DIXON, DONNELLY and DEMERS were substantiated. It is our
opinion that they are to be commended for their resourcefulness
and skill in meeting the sudden emergency thrust upon them.

7. Through the courtesy of the U.S.A. 148th
GENERAL HOSPITAL, and particularly from Colonel R.C. WADSWORTH
and Captain W.H. MOOREHEAD, the following information concern-
ing the survivors was obtained. A carefully taken medical hist-
ory revealed their average age to be about twenty-nine years;
the average weight loss during their imprisonment had been about
sixteen pounds. Ninety-five percent stated that they had had
malaria; several had had the cerebral form of this disease.
Sixty-seven percent said that they had had recurrent dysentery
(bacillary and amebic); ninety-five percent reported, during
their imprisonment, recurrent manifestations of vitamin and
nutritional deficiencies of one type or another. Many had been
treated by their own doctors (fellow prisoners of war) for beri-
beri and pellagra. Sixty percent, at one time or another, had
had tropical ulcers. At one time, a terrific epidemic of cholera
with a high mortality rate (98%) had swept through their group.
Some of their fellow prisoners died of typhus fever. When moved
from one camp to another they were deloused by boiling their
clothes and by bathing with soap and water. Soon after their
capture they were given innoculations by the Japanese against
plague, typhoid fever and amebic dysentery. Prior to
their departure from Singapore they stated that none of them
had had skin rashes or ulcers. Upon hospitalization, all were
found to be suffering from malnutrition, exhaustion and exposure.
One hundred percent of them showed evidence of vitamin deficien-
cies, varying in degree and extent. In eighty-five percent,
pre-tibial pitting could be demonstrated; hypoproteinemia un-
doubtedly accounted for some of this edema. All of their tongues
were smooth, many were sore and fiery red. The gums were swollen
and bled easily upon slight trauma. Angular stomatitis was seen
frequently. All had some type of skin lesion which varied from
severe ecthyma to minor abrasions and erosions. Five men had

-11-

— page 327 —
[HANDWRITTEN: 186]

IN REPLY
REFER TO
AS11/
[STAMP: 12-5]
DECLASSIFIED

U. S. S. FULTON

[HANDWRITTEN: R.S. 1858]

Subject: Experience of Survivors from a sunken Japan-
         ese Transport Recovered from life Rafts in
         the South China Sea. Reports Concerning.

— page 328 —
[HANDWRITTEN: 816]

U. S. S. FULTON (AS11)

IN REPLY
REFER TO
AS11/P2-1
[STAMP: DECLASSIFIED]
[STAMP: SECRET]
[HANDWRITTEN: 001]

[HANDWRITTEN: R.S. 1858]

10/wsf
San Francisco, Calif.
c/o Fleet Post Office
OCT 25 1944

— page 329 —
[HANDWRITTEN: P16]
[HANDWRITTEN: R.S. 1858]

Care of Fleet Post Office,
San Francisco, California,

PF12-10/P2/
Serial: 00923
[STAMP: DECLASSIFIED]
[STAMP: Third Indorsement]
Med. Off., 1tr. A811/P2-6
of 30 September 1944.
[STAMP: SECRET]
[STAMP: DECLASSIFIED]
From: The Commander Submarine Force, Pacific Fleet.
To: The Chief of the Bureau of Medicine and Surgery.
Subject: Experiences of survivors from a sunken Japanese Transport
         recovered from life rafts in the South China Sea, reports
         concerning.

NOV 8 - 1944

1. Forwarded.

2. The Commander Submarine Force, Pacific Fleet, considers
that the pharmacist's mates attached to the PAMPANITO, BARB,
and SEALION, were outstanding in their performance of duty. It was only
through their knowledge of medicine, combined with painstaking and
conscientious attention to the surviving prisoners of war that one hun-
dred and fifty-two of the one hundred and fifty-seven rescued were
brought through this ordeal.

3. The following action has been taken in regard to the
pharmacist's mates concerned:
    DEMERS, M. L., PhMlc, USN, U.S.S. PAMPANITO, recommended to the
    Bureau of Naval Personnel for advancement to Warrant Pharmacist.
    WILLIAMS, J. P., PhMlc, USN, U.S.S. SEALION, advanced to Chief
    Pharmacist's Mate, Acting Appointment.

4. By copy of this endorsement, the Commanding Officer's of
the BARB, and QUEENFISH are being requested to make recommendations for
promotion of, or suitable awards to, DONNELLY, William E., PhMlc, USN,
and DIXON, Harold (n), PhMlc, USN, respectively.

Copy to:
CO USS BARB
CO USS QUEENFISH
CTG 17.7

[SIGNATURE: C. A. LOCKWOOD, Jr.]

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[HANDWRITTEN: 4]

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