U.S.S. TRUTTA (SS-421) — war patrol report SS-421_TRUTTA.pdf

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START OF REEL [HANDWRITTEN: #1]

JOB NO. [HANDWRITTEN: H-109]
        [HANDWRITTEN: TRUTTA] [HANDWRITTEN: AR-12-80]

1.0
     4.5
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1.25 1.4 1.6

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     4.0 1.8

OPERATOR [HANDWRITTEN: DEBOSE]
DATE [HANDWRITTEN: 2-10-80]

THIS MICROFILM IS
THE PROPERTY OF
THE UNITED STATES
GOVERNMENT

[STAMP: DEPARTMENT OF DEFENSE (seal with eagle and text "UNITED STATES OF AMERICA")]

MICROFILMED BY
NPPSO-NAVAL DISTRICT WASHINGTON
MICROFILM SECTION

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

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```
TRITTA CSS-48D
WORLD WAR II PATROL FILE
ALL MATERIAL ON THIS REEL IS DECLASSIFIED

FOR DECK LOGS NOVEMBER 1944 - JUNE 1945
CONSULT NATIONAL ARCHIVES WHICH HAS CUSTODY

[J.A. KONTZ]
```

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Office of Naval Records and History
Ships' Histories Section
Navy Department

HISTORY OF THE USS TRUTTA (SS 421)

The USS TRUTTA (SS 421), a 1,570 ton fleet submarine of the
BALAO Class of 1941-1942, was built at the United States Navy Yard,
Portsmouth, New Hampshire. The submarine's keel was laid on May 22,
1944, and the ship was launched on August 18th of the same year.

In accordance with the Navy custom of naming undersea craft for
fish and denizens of the deep, the TRUTTA was named for a species of
a northern European trout. At the launching ceremonies, the SS 421
was christened by Mrs. Edward C. Magdenburger, wife of a prominent
Navy Department executive.

The TRUTTA was placed in commission on November 16, 1944, with
Commander Arthur C. Smith, USN, as her first commanding officer.

Soon after commissioning, an intensive training program was begun
with operations being conducted just outside of Portsmouth for two
weeks. This was followed by trial torpedo firings at Newport, Rhode
Island, for a week; after which the ship moved on to New London,
Connecticut, for further training and exercises where three weeks
were spent covering all phases of submarine warfare. Upon completion
of all contract trials and a month's intensive training, the TRUTTA
sailed for Panama on the 19th of January, 1945. Here, eight more days
were spent in practice torpedo attacks and practice firings before
the ship set out for Pearl Harbor, T. H., on February 8, 1945.

Between the SS 421's arrival at Pearl Harbor on February 25th and
her departure on her first war patrol, the TRUTTA was subjected to
still more advanced training. Minor voyage repairs were also effected
at the Submarine Base at Pearl Harbor during this time.

On March 19, 1945, the TRUTTA departed from Pearl Harbor on her
first war patrol, via Saipan, Marianas Islands, in company with the
USS PARCHE and USS LIONFISH. During the 11-day trip to Saipan, wolf
pack drills and exercises were held with the other boats and the crew
received some individual training in "school of the boat."

Twenty-eight hours were spent in Saipan fueling, provisioning,
and receiving minor voyage repairs from the USS FULTON (AS 11). Upon
leaving Tanapag Harbor, Saipan, the starboard propeller hit a cable
connected to an oil drum in the harbor and several hours later during
the first dive, the sound operators discovered that the propeller pro-
duced an abnormally high noise level accompanied by a definite squeak.
It was decided to return to Saipan for proper repairs.

Finally, on April 3, 1945, the TRUTTA was off to the second
start on her initial war patrol. En route to the Yellow Sea area,
two days were spent off Bungo Suido on "watch dog" duty searching for
major enemy fleet units which were expected to sortie from the Inland
Sea. The TRUTTA arrived on this station just 24 hours after the
Japanese battleship YAMATO and her accompanying task force had de-
parted from Bungo Suido. Two other U. S. submarines, however,
had been on the force and initiated contact reports which enabled Allied

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- 2 - (USS TRUTTA)

task force to intercept and completely annihilate this enemy force
on the following day.

After two days south of Bungo Suido, the TRUTTA was ordered to
proceed through the Nansei Shoto chain into the Yellow Sea for offen-
sive patrol. On her passage through these islands just south of
Kyushu, the TRUTTA was forced down eight times in one day by enemy
planes before successful transit of the passage could be made.

In the early morning of April 15th, after arriving on station in
the Yellow Sea, two seemingly large targets were picked up by radar.
During the attack, four torpedoes were fired at the ships without a
single hit. It was believed that the misses were due to the torpedo
running under the target ships since, due to unusual radar performanc
the two small enemy patrol craft had been mistaken for much larger
prey.

Four days later, in late afternoon, the SS 421 sighted two small
"engines-aft" freighters in company with two sampans heading for the
China coast. The ships were approached on the surface and then taken
under fire by the sub's 5-inch, 20 millimeter and 40 millimeter guns.
One ship was sunk and the other severely damaged.

On April 20th, while submerged off Chosan Kan on the west coast
of Korea, a convoy of three ships and three escorts was sighted. As
the submarine was being maneuvered for an approach, the convoy made
a sharp change of course and entered shallow water before the attack
could be made.

Upon her return from patrol, the TRUTTA was annoyed by Japanese
patrol planes again in the passage through the Nansei Shoto islands.
"Hold down" tactics were employed most effectively, forcing the
TRUTTA to dive 12 times during one day and night. U. S. aircraft
helped greatly by giving much needed air cover during a part of this
critical passage. After a 41-day patrol, the TRUTTA arrived in Guam,
Marianas Islands, for a refit by the USS PROTEUS (AS 19).

While the officers and crew spent two weeks at Camp Dealey, the
submarine rest and recuperation center at Guam, Submarine Division
201 took over and made the necessary repairs to the boat.

Before the training period began, Lieutenant Commander Franz P.
Hoskins, USNR, executive officer during the first war patrol, relieve
Commander Arthur C. Smith, USN, as commanding officer of the TRUTTA.

During the seven day training period which followed, the TRUTTA
had the interesting and unique experience of conducting torpedo firin
exercises with the battleship SOUTH DAKOTA as target. Two torpedoes
were fired at the battleship for two "bulls-eyes."

On June 2, 1945, the TRUTTA departed from Guam in company with
the submarines QUEENFISH and SPOT for lifeguard duty between Iwo Jima
and the Empire. In the early morning of June 6th, a severe typhoon,
with winds of over one hundred knots velocity, caught the TRUTTA in
its path. She rode out the storm on the surface for six hours before
finally submerging to ride it out under water. Even at 200 feet the

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- 3 - (USS TRUTTA)
submarine rolled as much as ten degrees! By early afternoon the sea
had calmed down sufficiently to surface and proceed northward to the
assigned life guard station.

On the following day, Lieutenant Arthur A. Burry, P-51 fighter
pilot of the 45th Fighter Group, USA, was picked up. He had been in
the water in his small rubber life raft for a total of six days, dur-
ing which time he had ridden out the typhoon on June 6.

On June 10th, the TRUTTA made a photo reconnaissance tour around
Tori Shima in the Nampo Shoto chain and took pictures of the Jap in-
stallation on that small island. After several more days of unevent-
ful life guard duty, the TRUTTA transferred the rescued aviator to th
submarine PETO and then moved westward into the Bungo Suido area for
a week's stay. There she performed life guard duty by night for B-29
raids on nearby Jap cities and patrolled submerged by day looking for
Jap shipping. Neither ship contacts were made nor life guard service
called for during the short time in this area.

After a total of three weeks at sea, the TRUTTA was finally
ordered around into the East China and Yellow Sea areas for patrol.
In the early morning of June 24, 1945, Hirado Shima was shelled by th
SS 421 in a purposely conspicuous manner in order to divert attention
of the Japs from the "Hell Cats," a group of nine U. S. submarines
escaping from the Sea of Japan through La Peruse Straits far to the
north.

On July 1, 1945, while patrolling off the entrance to Keijo,
capitol of Korea, seven large seagoing trading schooners were encoun-
tered and sunk by gunfire. Again, six days later just south of Chosan
Kan, Korea, three more similar four-masted schooners and a tug towing
them were caught and sunk with the deck guns in the late evening. As
a parting shot before leaving Chosan Kan, the TRUTTA ran into a shall
water harbor and destroyed five more cargo-laden schooners. Unfortu-
nately, during this period in the Yellow Sea no targets worthy of
torpedo fire were found. During her second war patrol, the SS 421
had completely destroyed 16 large cargo-carrying schooners and one tu
for a total of 4,650 tons of enemy shipping sunk. Throughout the pa-
trol off Korea, only eight enemy planes were sighted which served to
indicate that Japan was weakening and could not hope to last much
longer.

After 46 days at sea on her second war patrol, the TRUTTA again
slipped into Guam for another refit alongside the USS FULTON and two
more enjoyable weeks were spent by all hands at the submarine rest
camp. After returning to the ship, four days were spent in training,
followed by a four day post repair and loading period.

On August 12, 1945, the TRUTTA set out on her third war patrol
amid flying rumors that Japan was negotiating for peace. Four days
later, while just south of the Empire, official word was received
that the war was over! It was hard for the officers and crew to real
ize that peace was again at hand, but all hands participated in
"splicing the main brace" on that memorable night of August 16, 1945.

Shortly after the termination of hostilities, the TRUTTA receive

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- 4 - (USS TRUTTA)

orders to proceed to Midway Island and, upon arrival, the squadron
commander delivered the good word that the TRUTTA, along with eleven
other submarines, was scheduled to leave for the Atlantic Coast of the
United States for duty. On the very next day, August 25th, the TRUTTA
got underway for "the States."

After passing through the Panama Canal, orders were received to
deviate from the course and proceed to New Orleans, Louisiana, for a
month of leave, liberty, and recreation. The TRUTTA arrived in New
Orleans on September 21, 1945, and spent a wonderful month in that
city.

For Navy Day, the SS 421 moved to Gulfport, Mississippi, where
she joined the new destroyer CHARLES P. CECIL. An estimated ten to
fifteen thousand visitors came aboard both of the ships during the
three-day "open house" in Gulfport.

From Gulfport, the TRUTTA sailed around the tip of Florida and
up to Tomkinville, Staten Island, New York, to join the new Submarine
Squadron Eight for duty.

By Directive dated January 1947, the USS TRUTTA (SS 421) was
placed out of commission, in reserve, attached to the U. S. Atlantic
Reserve Fleet.

In addition to receiving the Submarine Combat Insignia for both
her first and second war patrols, the TRUTTA earned two (2) engagement
stars on the Asiatic-Pacific Area Service Ribbon for participating
in the following operations:

1 Star/Okinawa Gunto Operation
  Assault and Occupation of Okinawa Gunto -- 24 March to 30 June
  1945.

1 Star/THIRD Fleet Operations against Japan -- 10 July to 15 August
  1945.

* * *

STATISTICS

OVERALL LENGTH                                        312 feet

BEAM                                                  27 feet

DISPLACEMENT                                          1,570 tons

SPEED                                                 20 knots

* * *

Compiled: January 1951

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SS421/A16-3/A9/(We)
Serial: 09
C-O-N-F-I-D-E-N-T-I-A-L
[STAMP: DECLASSIFIED]

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

Subject: U.S.S. TRUTTA (SS421), Report of War
Patrol Number ONE.

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

1. Enclosure (A), covering the first war
patrol of this vessel, conducted in the YELLOW SEA, off
BUNGO SUIDO, and South West KYUSHU Island areas, during
the period 19 March 1945, to 4 May 1945 is forwarded
herewith.

U.S.S. TRUTTA (SS421)
c/o Fleet Post Office
San Francisco, Calif.
4 May 1945

[STAMP: DECLASSIFIED-ART. 0445, OPNAVINST 5510.1C]
BY [HANDWRITTEN: A0931A] DATE [HANDWRITTEN: 6/20/72]

[HANDWRITTEN: In this, C. Smith]
Arthur C. Smith,
Commander, U.S. Navy

[HANDWRITTEN: FILMED]
[HANDWRITTEN: 123095]

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U.S.S. TRUTTA (SS421)
"A"

PROLOGUE

I. Trutta was built at the U.S. Navy Yard, Ports-
    mouth, N.H. and commissioned there on 16 Nov-
    ember 1944. After the normal thirty day training
    period in the Portsmouth - New London Area, and
    after completing all contract trials, she sailed
    for the Panama Area. After 8 days training in
    that area, during which 21 torpedoes were fired,
    Trutta left for Pearl Harbor, arriving on 25 Feb-
    ruary. Voyage repairs and the installation of the
    APR search receiver were obtained here as well
    as 12 days of intensive advanced training during
    which all types of new evasive equipment, the en-
    tire armament, and all machinery were tried and
    put in first class condition. The ship departed
    from Pearl on 19 March 1945, for patrol with all
    materiel in excellent condition and with a tho-
    roughly trained crew.

II. On departure for patrol the following Officers
    and Chief Petty Officers were on board:-

    Arthur Chester Smith | Commander, USN | 1 patrol
    Franz Perkins Hoskins | Lt. Comdr. USNR | 11 patrols
    William Robert Anderson | Lieutenant USN | 9 patrols
    Donald Edward Kidder | Lieut(jg), USNR | 0 patrols
    Peter Barna | Lieut(jg), USNR | 0 patrols
    Paul W. Crutchfield, Jr. | Lieut(jg), USN | 0 patrols
    Allan Prescott Locke | Lieut(jg), USNR | 0 patrols
    Glenn Ellis | Lieut(jg), USN | 3 patrols
    Ernest Edward Smith | Ensign, USN | 3 patrols

    MILLER, John Henry | 201 72 77 CTM(T) | 5 patrols
    HOWARD, Henry Raymond | 212 33 53 CQM(T) | 0 patrols
    HAHN, Bernard Satolli | 375 65 64 CMOMM | 4 patrols
    RISER, Roy Carl | 250 48 98 CMOMM | 8 patrols
    USHER, Robert Haun | 207 21 00 CMOM | 0 patrols
    SIMMONS, Victor William | 359 77 98 CEM | 11 patrols
    SERAFIN, Bernard John | 311 13 77 CPhM | 2 patrols
    DOBROWOLSKI, Waclaw (n) | 201 23 34 CCS | 0 patrols

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"B"
U.S.S. TRUTTA (SS421)

NARRATIVE

19 MARCH 1945
Departed Pearl Harbor in company with
Parche, Lionfish, enroute Saipan in accordance
with ComSubPacAdCom Operation Order #41-A-45.

Instructions were given prior to sailing to
train as a wolf pack and a wolf pack training
order was promulgated by Commanding Officer,
U.S.S. Trutta, calling for a target ship, an
attacking ship, and a ship free for independent
exercises each day enroute Saipan. In addition
to this plan instructions were given for wolf
pack exercises. A trim dive each day was con-
templated and made.

20 MARCH 1945 - Noon Position, Lat 20-46-00N, Long 163-23 W

Trutta acting as target ship, Parche at-
tacking, Lionfish independent ship training.
Exercised crew at various stations and held
school for unqualified personnel. In the even-
ing, exercised pack in communication drill
using CW, TBL voice, VHF and SJ radar communi-
cations. VHF intermittent and weak on all ships
at 8 miles distance. All other communications
satisfactory. Authenticated all messages for
drill.

21 MARCH 1945 Noon Position, Lat 20-45-00N Long 169-17-00W

Parche - target ship, Lionfish attacking,
Trutta independent exercises in the morning.
Made surprise aircraft dive to 300 feet, Hit
periscope depth in 30 seconds, 100 feet in
56 seconds - these are beautiful diving boats!
Test fired all guns. Exercised at battle sta-
tions. Afternoon, exercised Pack at simulated
aircraft contact reports. Valuable drill in
finding out how long it takes to form attack-
ing line and locate an evasive enemy 60
miles away. More training needed in communi-
cation and faster communication procedure.
Evening, exercised at SJ identification procedure
and also tracking with SJ keyed only every 4
minutes, using ST to prevent patrol boats or
submarines coming in between sweeps. Present
policy is to use APR constantly, SJ keying every
4 minutes and ST sweeping in between, on the

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                             U.S.S. TRUTHA (SS421)
                                      "B"
                             NARRATIVE

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U.S.S. TRUTTA (SS421)

NARRATIVE

30 MARCH 1945
     1200 Arrived Saipan, moored alongside Fulton.
          Fueled, lubed, completed stores
          loading.
          Fulton made repairs to Bendix Log and
          pumped rotor in master gyro. Excellent job
          on compass; Bendix Log still has variable
          error.

31 MARCH 1945
     1600 Departed Saipan, enroute patrol area with
          Parche and Sunfish. While clearing TANA-
          P.G HARBOR starboard propellor hit cable
          connected to an oil drum which was appar-
          ently floating in the charted channel. Drum
          had no distinguishing marks. Proceeded to
          outer harbor where the Executive Officer
          dove over the side and determined that 2
          blades were nicked. Ran at various speeds
          and found vibration started at 13 knots.
          Decided to proceed until trim dive could be
          made and sonic noise determined. Made ends
          around on 2 friendly convoys, and finally
          at 2330 area was clear of shipping - made
          trim dive. Starboard propellor made ex-
          cessive submerged; about twice that of pre-
          vious JP chock. Decided to return to Sai-
          pan and so informed Commander Submarines,
          Pacific Fleet and Commander Task Group 17.7.
          Headed for rendezvous.

1 APRIL 1945
     1300 Made Saipan rendezvous with escort, and at
     1700 tied up alongside Fulton.

2 APRIL 1945
          Alongside Fulton. Drydock not available.

3 APRIL 1945
     0800 Entered ARD-25 for repairs to propellor.
          Inspection showed wire wrapped around shaft
          and worn thru rope guard, and deeply scored
          bronze propellor bushing. Glad I came
          back although I was tempted to push on that
          first night. If it had been left with the
          wire, we probably would have lost a pro-
          pellor shaft and propellor in a few days.

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U.S.S. TRUTTA. (SS421)

"B" NARRATIVE

3 APRIL 1945
1600 Underway from TANAPAG HARBOR, enroute pat-
     rol area in company with escort and Bennet's
     Blazers. All times now (-9). At 1940 saw
     two large flashes and heard two explosions
     roughly 6,000 yards away. Thought a boat
     had been hit or had an explosion on board,
     but all boats on that side of formation
     soon answered Group Commander in Sea Owl.
     Sea Owl was the closest ship and stated
     she thought they were jettisoned bombs from
     one of the many B-29's overhead so at 2040
     left formation and proceeded independently
     enroute patrol area.

4 APRIL 1945 Noon Position,Lat 16-06-00N,Long 141-37-20E
0545 Trim dive.
0800 Field Day.
1600 Held tracking and fire control drills using
     plot two as master plot with simulated tar-
     get.
2100 Exchanged recognition signals and passing
     courtesies on SJ with Ronquil and her load
     of rescued Baker Twenty Niners.

5 APRIL 1945 Noon Position,Lat 19-50-00N Long 137-48-00E
     Proceeding up joint zone at maximum sustained
     speed: 4 engines full - zigzagging daytime, 4
     engines standard - not zigzagging, nights. This
     is using tremendous amounts of fuel, but in view
     of operational requirements as stated in ComSubs-
     Pacs estimate of the situation, I believe maximum
     speed is more important than fuel saving and am
     so proceeding.
1100 SD contact 18 miles; closed to 15 miles;
     triggered ABK, but did not answer BN. No
     APR signal.
1115 Lost SD contact.
1600 SD contact 10 miles; closed rapidly to 8.
     Sky overcast and he did not answer IFF so
     dovc. The ship had been taking a beating
     at full power into force four seas so stayed
     down until 1800 to clean up electrical ap-
     paratus, water batteries and finish charging
     Mk 18 torpedoes.
1800 Surfaced.

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U.S.S. TRUTTA (SS421)
"B"
6 APRIL 1945 Noon Position, Lat 25-26N, Long 137-54-30E

0800 SD contact 28 miles. Plane then disappear-
ed. Stayed on surface. Heavy seas head
on - still bucking them at 4 engines, stan-
dard speed. Full speed floods the engine
room.
1200 Received change of orders - back to full
speed again. Stopped zigzagging, risking
torpedoes but the boat is
taking in view of operational situation
existing, which indicates Jap fleet is out.
1530 SD contact 21 miles. Closed to 19 miles.
Two planes. Dove.
1545 Came to 50 feet. Up SW - planes overhead.
Dove to 200 feet, rigged for depth charge.
No bombs.

1600 Surfaced. Proceeded.

7 APRIL 1945 Noon Position, Lat 29-57N, Long 134-25E.

Contact report received that units of Jap
Fleet were in BUNGO SUIDO STRAITS, apparently
in the process of a sortie. From plot posi-
tions estimated they were headed south, probably
to proceed via a joint zone to new station off BUNGO SUIDO.
If these are carried out, will arrive on station
24 hours after contact has passed. Decided to
head to intercept contact although we have to
pass thru an air surface zone. Don't know where
our fleet is, but believe it well to head south.
Headed to intercept. Still bucking heavy seas.
0300 Plot of contact shows change of course to
210°T, such that we cannot intercept sta-
tion; Changed course and headed for patrol sta-
tion; course will carry us across enemy
if he comes left. APR contact
on Jap search plane. No SD contact.
him. Saturation pip - no SJ contact.
Just about to dive when signal cut out.
Radarm n said "trouble with his radar".
In view of necessity for speed, took a
chance and kept on surface. No further
contact.
0800 Lookout spotted 2 planes, identity unknown,
heading for us, closing fast, distance 7
miles. Dove.

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U.S.S. TRUTTA (SS421)

NARRATIVE
9 APRIL 1945 (Continued)

signal just before sighting. Apparently
their radar picks us up at about 15 miles,
we pick theirs up on APR about 12, and sight
them from 12 on in.
1401 APR contact on Jap aircraft frequency -
changed course.
1515 Sighted two BETTY's at 12 miles, crossing
our bow. Kept bow pointed at them and stayed
on surface. Did not see us.
1634 Dove for 2 more planes - no APR contact.
Distance 6 miles. These might have been
friendly as we had previously communicated
by VHF with 2 planes we heard chattering
upstairs.
1655 Attempted to surface, but with SD contacts
at 9 and 2 miles went to 90 feet again.
1819 Now commence our maneuvers with "Harassing
Harry". Our present position will bring us
thru the NANSEI SHOTO pass on the surface at
night which is just what we wanted - but he
had decided differently. At this time picked
up an APR contact, 147 megacycles, PRF 500,
width 6, keyed every 3 seconds with automatic
keying. Watched his signal fluctuate from
zero to saturation. The weather is hazy
with many rain squalls.
2016 Sighted yellow parachute flare close aboard
to port, APR came suddenly close to satura-
tion. No SD contact. Dove.
2055 Surfaced. During this period we have con-
tinual ST radar interference. Probably
Lionfish astern.
2225 Again the APR contact. No SD contact. APR
saturated, OOD and lookouts heard plane
coming in from astern, throttled down. Dove
in a hurry!
2315 Surfaced. This boy knows where we are and
doesn't turn on his radar until about 3 miles
from us. Puzzled about the 3 second keying -
same as IFF pulse. Will give him an IFF next.

10 APRIL 1945 Noon Position Lat 29-43-00N Long 129-07-00E
0025 Again the same sequence - APR contact,
saturated, heard plane, turned and slowed.
Dove. Saw him this time - an observation
plane. Dark and rainy, so could not identify
as friend or foe. Used IFF - no response.
Surprised at no bombs.

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U.S.S. TRUTTA (SS421)

"3" NARRATIVE
13 APRIL 1945 Noon Position, Lat 32-22-00N Long 124-31-00E

0035 Flare burst directly overhead at Latitude
33-05-00N, Longitude 124-45-00E.
How did he get there? No APR, no
tact. Night was black as pitch. We had
made a transmission on WOPACO about one
hour ago and our only explanation seemed to
be that we were DF'd and a plane came over
without using radar, to our DF position. Or,
perhaps the Japs now have high frequency
radar since we only have a TN-3 band in our
APR. The bridge watch was a little unnerved
that this fellow could come so close without
any of our detection apparatus picking him
up.
0135 Surfaced. Nothing around.
0445 Sighted ships masts range about 12,000 yards.
Headed on in for an attack when at
1118 Sighted plane (BETTY) astern of us, distant
about 9 miles coming in. Dove. Watched
him go by astern. Don't believe he saw us.
1148 Surfaced and ran down true bearing.
tact at full speed.
1153 SJ Radar contact 36,000 yards, at Latitude
32-08-00N, Longitude 124-30-00E. Commenced
tracking. Passed many floating mines during
this part of approach.
1304 Periscope sighted ships, dead ahead.
1315 Dove. Range about 12,000 yards. We are
ahead of a very erratic and slow speed
target. Unidentified as yet. Weather hazy.
We heard distant explosion - depth charge
or bomb. Heading for targets.
1405 Picked up pinging from targets. Target
tracking at 2 knots, steering very erratic
courses and pinging. We can make out dimly
3 destroyers or minelayers in the haze and
now feel that this is the anti-sub patrol
reported by Tirante last night. They may
have someone down or just be swooping. We
will watch, allow them to close slowly and
surface and get clear to charge battery
which is getting low.
1805 With a range of about 9,000 yards and Trutta
between two of the destroyers; getting ready
to go in (One was HATSUHARU class); they
all reversed course and headed away from

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— page 22 —
U.S.S. TRUTTA (SS421)

"B" NARRATIVE

13 APRIL 1945 (Continued)
us. Don't know whether I was disappointed
or not as I think they were definitely
looking for subs, had a plane with them
and if we had not gotten them first we might
have been in for a bad time in shallow
(100 feet) water with a low battery.
1940 Surfaced. Headed north for east-west traf-
fic lanes. No ST contacts. Our previous
targets must have gone across shoal water
to SHANGHAI.
2015 Another floating mine.
2025 Airborne search APR contact.

14 APRIL 1945 Noon Position,Lat 34-43-00N Long 124-33-00E

0045 While trying to send report on destroyer
contact to ComSubSPac and area boats again
dove for flare directly overhead; Latitude
33-03-00N, Longitude 124-40-00E. Their
DF system must be perfect. Wonder if this
follow has a magnetic detector instead of
radar. Why no bombs? A man on deck greasing
the 5" gun saw the flare and streaked up the
ladder and down the hatch before the OOD
could say "clear the bridge"! He is now
named "greased lightning".
0127 Surfaced. Nothing around.
0345 SJ contact 42,000 yards. Commenced track-
ing. Target shows as a large "pip", is
zigging erratically and shows about 16 knots.
Note the initial range.
0520 After making one round on contact exchanged
recognition signals with Spadofish who dis-
gustedly answered our question as to type
of contact: "We are your contact!" I
thought it must be another target's
direction we thought it must be another
friendly submarine working on some target
as it seemed absolutely incredible to pick
up a submarine at 42,000 yards. The condi-
tions here are phenomenal. Birds at 7,000
yards, mines at 4-5,000 yards. Broke off
approach and continued northward, a little
disgusted, too. We really felt we were
hunting this time instead of being hunted.
0500-0800 Sighted and avoided 26 drifting mines.
See mine section for exact information on
this area. We told everyone they are usually

- 14 -

— page 23 —
U.S.S. TRUTTA (SS421)

NARRATIVE

14 APRIL 1945 (Continued)

                     duds to relieve their minds; I hope I'm
                     right and that we don't hit one to prove
                     it! Mine field in position Lat 33-40-00N,
                     Long 123-57-00E. Did not shoot at them
                     as we are searching for possible convoy.
0830 Apparently passed thru minefield as no more
                     were sighted.
1050 Sighted ship bearing 075°T, range about 10
                     miles. Turned out to be a very small fishing
                     craft with one man aboard. Avoided.
1430 Sighted masts on horizon. Headed towards.
                     Ship tracked at speed zero. Cleared day so
                     closed to about 10,000 yards and at
1440 Submerged and commenced approach.
1608 Contact proved to be a junk accompanied by
                     three others, fishing. No radio. Cleared
                     area submerged. Many other masts of fishing
                     boats around.
1945 Surfaced.
1957 APR contact - apparently shore based radar.
                     Decided to close shore line thru junk fleet
                     and see what traffic was moving close to
                     shore. Radar giving phenomenal and embar-
                     rassing performance by picking up 2nd and
                     3rd trip echoes (one pip plotted as
                     Mt Wade on CHINA coast 118 miles away!)
                     The PPI and scope are so full of junks and
                     land contacts that we established a tracking
                     party on all night to plot each contact and
                     determine its speed. If speed zero or one
                     knot, avoided as a junk. Watching for any
                     contact which was really moving. Running
                     close to 20 fathom curve. At one time we
                     had 16 simultaneous contacts, all junks,
                     off DAI-KOKUZAN TO and GUNZAN HARBOR.
2220 Radar contact moving towards shore 34,000
                     yards. SJ interference probably one of ours
                     on other side of fishing fleet. Could not
                     communicate.
2226 Sighted a steady white light on beach. This
                     may mean traffic by this point, so decided
                     to close into 10 fathom curve.

15 APRIL 1945 Noon Position, Lat 35-20-00N Long 125-15-00E

0014 SJ contact, large pip, moving at 56,000
                     yards, Lat. 35-20-00N, Long 125-28-00E.

- 15 -

— page 24 —
"B"
NARRATIVE
U.S.S. TRUTTA, (SS421)
15 APRIL 1945 (Continued)

Headed towards this contact, as it seemed
big, at full speed. It was a dark hazy
night and we were about 12 miles from the
beach, along the 15-20 fathom curve. Lights
were plainly visible when haze lifted and
the OOD heard a train whistle.
0137 Target getting bigger on radar, tracking on
southeasterly course towards beach from sea.
Flank speed to close him and beach before
he gets in to really shallow water. Anything
over 100 feet is deep water up here.
0200 The target is checking at 10 knots and has
split into two large saturation pips of equal
size about 3,000 yards apart.
0241 We have closed to 4,000 yards, at battle
stations ready to fire on a 110° starboard
track on overlapping targets. Inshore of
targets in about 17 fathoms and 6 miles from
KOKO and SHOKA TO, the nearest land. Visi-
targets suddenly reversed course and headed
north, still at 10 knots, 180 track! Visi-
bility about 3,000 yards. Don't believe
they have sighted us but they may have radar.
So trailed for a few moments at 4,000 yards,
in still
They gradually were working us
closer to the shore, so decided to cross
over and attack from seaward. We are now
puzzled. Our targets are saturation pips,
big follows we think, but with no small pips
denoting escorts. They may be:
(a) Two ships waiting for an escort.
(b) Two destroyers who have us on radar
and are working us towards beach before
attacking.
Decided to attack, so at 0254 crossed over
and commenced working up their port or seaward
side about 5,000 yards away. Must attack
before dawn as we are in shallow water and
close to the beach. Target checking 10 knots,
zigzagging on northerly course.
0332 With a 120° port track, dist 3200 yards,
everything checking nicely, commenced firing
bow tubes at near target. Fired 4 torpedoes.
At 3300 yards haze had broken and our target
appeared as a dark blur. Just as we fired it
could be seen that it did not have a merchant
ship outline and seemed much smaller than we
expected; swung hard left and reversed course,
waiting and hoping. Three minutes and fifty

- 16 -

— page 25 —
"B"
U.S.S. TRUTTA (SS421)

NARRATIVE

15 APRIL 1945 (Continued)

seconds after firing heard one explosion.
Timed as little short of end of run explosion.
Target still on northerly course at 10 knots.
With an hour to dawn, decided to clear area.
Targets zigging erratically astern. I do not
believe we hit either target and feel that the
must have been patrol boats of a CHIDORI or
loss type. The torpedoes were set for 6 feet
and probably ran under the target. Everything
also checked perfectly. Retired sadly and
tired. Fired at 3200-3000 yards as we had
broken out of haze and I felt we would be
sighted very shortly. Radar in this area is
wonderful for avoiding, navigating, and track-
ing, but as above, it gives such big pips that
on a dark night it is impossible to tell what
one is firing at until target is sighted. If
sighting is not made until just before or at
the firing point one is committed to fire be-
fore definite identification can be made. We
feel very badly about this one as all indi-
cations pointed to a good approach and hits.
As the targets were closing the boat and dawn
was rapidly approaching, it was impossible to
use the normal procedure of getting up ahead,
submerging, and looking them over by day be-
fore firing.
0540 We are about 20 miles off the coast, between
DAIKOKUZAN and OSEI TO Lights. Dove and began
submerged patrol to rest all hands after the
all night session and see if our good traffic
out around DAIKOKUZAN Light.
0730 Distant explosion. Nothing in sight except
junks.
1952 Surfaced. Decided to shift areas and look
over KEIJO Harbor close in as all traffic
apparently hugs the coast.

16 APRIL 1945 Noon Position, Lat 36-48-00N Long 125-18-00E

0544 Submerged off entrance to KEIJO Harbor. Con-
ducting patrol between harbor entrance and
KAKUREPPI RETTO Light off 10 fathom curve.
1325 Surfaced to get a fix and air out the ship.
1342 Submerged again.
1530 Sighted 2 mines thru periscope Lat 36-52-00N,
Long 125-20E. Wonder if they have a mine
field here? It's shallow enough - 30 to 20
fathoms where we are.

- 17 -

— page 28 —
"B" NARRATIVE
U.S.S. TRUTTA (SS421)
19 APRIL 1945 (Continued)
19
then, and most amusing of all, they put
fenders over the side and broke out mooring
lines! Being close to air bases decided
to decline the invitation and just looked
her over carefully. She was numbered 19
and carried a cargo of lumber. Decided she
was definitely Chinese, and since she had
a woman and children aboard, cleared her
side and left area.
1720 Sighted ship on the horizon in the haze.
Headed for at full speed. Contact turned
out to be two small freighters with 2 sam-
pans, engines aft, one stack, speed about
8 knots, of 300-500 tons, headed for China
Coast into shallower water. They seemed
too shallow for torpedoes so decided on
gun action, which had to be hurried as they
both had radio antennae, Jap flags painted
on, and we were about 60 miles from two
large airfields. Closed to 2,000 yards to
closest one and at
1830 Opened fire, coming between the sampans and
the two freighters which were in station
column. Took closest one under fire with
40MM and 20MM, other with 5". Close target
retaliated with his machine gun, but was
soon silenced by a direct hit on the gun
by the 40MM. The other target attempted to
escape, but a lucky 5" hit in engine room
stopped her.
1838 With everything under control a lookout re-
ported "sampans in plain sight". Three or
four people caught only the ominous word
"plane" and repeated it, so cleared the
decks fast and submerged.
1846 No planes in periscope, so battle surfaced
and began all over again.
1907 One target with 3 direct 5" hits and numer-
ous 40MM was settling by the stern, listed
to starboard and on fire. No life aboard.
The other was limping away in the dusk with
1 5" hit and plastered with 40 and 20MM hits,
with a small fire aboard. The sampans had
made good their escape in the dusk and did
not show on SJ. They may have been Chinese.
So, considering the proximity of airfields
and shallow water, cleared the area at full

- 20 -

— page 30 —
U.S.S. TRUTTA (SS421)
"B" NARRATIVE
21
20 APRIL 1945 (Continued)
around the peninsula, went south of it and
up its side, close in, soon putting the
peninsula between us and them in 5 fathoms
of water. Wow! It was like pricking a
childs balloon. The enlarged track chart
enclosed shows the situation.
1514 After watching the stern of the destroyer
follow his convoy up this narrow passage,
came sharp right and headed out to sea,
about 3,000 yards from the beach to look
down the peninsula and be sure they were
headed in. They were.
1610 To complete this awful day, while raising
the periscope to observe a small ship
passing by, the Commanding Officer's hand
was jammed between the handle and a metal
seat causing a mangled right hand, fracture
of one finger bone, loss of use of
one hand, and bruised feelings, already
at cursing point from the convoys &
1858 Surfaced and began surface search for convoy
on assumption they had gone south to KEIJO
along inside route. Looked over all the
coast line with no results.
2015 APR contact, 150 megacycles.
2055 Radar interference ahead and astern. It was
definitely 10CM radar but with a wider
pulse width than ours. We are firmly con-
vinced Japs have a radar similar to our SJ
after this second experience.
2105 Passed thru another fishing fleet; zig-ging
widely at 17 knots to keep clear and continue
search.
2309 Having reached extreme southerly intercept
course, reversed course, and headed back to
DAITO WAN Bay, which now seems to be a
traffic point.

21 APRIL 1945 Noon Position, Lat 38-09-00N, Long 124-25-00E

    Passing thru the usual fishing fleet en-
    DAITO WAN Bay. Radar interference still
    Ignoring it since no radar pips appear.
0500 Decided to stay on surface, patrolling en-
    trance to bay, just out of sight of land -
    about 6 miles off on this misty day. Kept
    SJ and sound watch on. In position to attack
    it a convoy came thru similar to yesterdays.

- 22 -

— page 33 —
```
U.S.S. TRUTHA (SS421)

"8"  R. R. H. E.

22 APRIL 1946 (continued)...
these were our hunts and needing a battery charge badly, kept on going. Below we were in a radar channel; no-
Listing torpedoes toward, changing Ms
38Bps and new sound Wolf pack commander
about P.T.D. NAV's importance. Directed
Liafish to move north while moved slowly
to south down quart. Full getting down to
going out. Was having Officer's broken hand
show out of splints and F. O. I a little loss
like one hand monkey going up and down
ladders.

23 APRIL 1946
Moon Position, Lat 35-08-00N Long 125-18-00E
0050 Returned all torpedoes.
0800-1200 Surface patrolling off D.LIGUAN CUNTO
in dense fog. Watching pass between it and
coast.
1240 fog lifted suddenly, we were in sight of
land. Dove and conducted submerging patrol,
saw fishing boats about.
1955 Surfaced. Continued patrol, heading south,
west course from D.LIGUAN route.

24 APRIL 1946
Moon Position, Lat 34-21-00N Long 123-41-00E
Dense fog. Scouting along traffic routes in
middle of Yellow Sea, just north of mine care.
1912 Time drift.
2130 Radar interference, MOON. Identified first
as up and down towards general boring.
Last contact.

25 APRIL 1946
Moon Position, Lat 34-06-00N Long 124-58-00E
0000 Bright moonlight.
0015 In latitude 34-35-00N, long 124-58-00E,
sighted torpedo vessels. Made plan, look-
out for possible contact, who could find
out as periscope, etc., and think of
provoking on our ENGINEERS. It seems to
be possible contact; sound was sounded, but
- 25 -
```

— page 36 —
```
U.S.S. TRUTTA (SS-421)
"S" N.B.R. 5

27 APRIL 1945 (Continued)

who was after us on our way thru the pass
entrance patrol area. He has us now about
in the middle of the pass in bright moonlight.
No I.D. contact and he has dropped bombs.
May be friendly so will try to identify our
selves.

2238
Surfaced, charging at maximum rate on 2
generators as battery only half charged.
SD contact in all modes, unable to raise.
After giving IFF signal, No response, just
before giving I tried to call up on VHF. No
response, will try to do some identification
next time and that code he is definitely
not I.D. and I understand he might have
a good radar above the ship.

2243
SD contact still there, I am trying to
get in touch with him. He apparently picks
up a picture without making a sound. I am
trying to get him to identify.

30 seconds and can't easily see, seem
to be in the light. We’re still able to
get a few seconds, turning to go deeper on
an escorting vessel.

So contacting the Yellow Bar we are
able to wind easily in this area over 6 miles.

Decision to push on and go across the
pass, surfacing and changing course often
to try him, hoping to out guess our
turns.

2349
Surfaced after a wait to see if he would
away.
- 28 -
```

— page 37 —
```
U.S.S. TRUMBA (453421)
""
""
28 APRIL 1945  Noon Position, Lat 29-06-00N Long 131-37-00E
0001  Mo - he has us again.  At 18 miles SD contact.
0003  Fired track George Gun as he still acts like
       a friendly search plane.
0005  Closing fast.  Dove.  He is still here on
       your angle.  He must be a Jap.  Changed course
       good.
0330  Surfaced.
0335  SD contact coming in - 4 miles.  Dove.
0345  Surfaced and sent message to ComSubPac, ex-
       plaining details on this contact.  I per-
       sonally hope only 180 miles from Okinawa, and per-
       haps this may be worth sending fighters to
       look this fellow over.  Fast approaching
       now - 1150 now.  This ship can’t do much
       but battery will caution another night.
0658  SD crew in 2 hours got 360° from
       0 to 2 miles.  Dove 1500 to first
       to give us 2 hours to get 350° into
       the battery.
0730  Saving battery.  Our lookout assigned to SubPac
       during the night has to surface and fight him
       but we might have to surface to do so.  Pitch
       in and if battery gets too low, I’ll
       decide to do this in the morning.
0732  Trying to get our guns.  He is quite obviously
       not a friendly.  Contact confirmed.
0738  6 miles - he’s still 6 miles.  Now reports
       looks like he’s EWTF.  They must have re-
       alized who we are.
0739  8 miles.  Air getting in on 1500 like.
0830  Heard good, images on you on 1K.  They
       have a good idea of what we are and gave
       our outside position.  This is the first
       time we have been able to record
       our outside lines, at this point.
0850  2 hours passed.  This is the first
       time we have been able to record
       and it continues to look like
       I am with 2 P2V’s ZEBBY [HANDWRITTEN: 1]
       chosen to track P2V’s ZEBBY [HANDWRITTEN: 2]
       to surface and P2V’s are now doing
       fighters and FPH on our path and
       so, I’ll just try to run home, looked
       like a 29° heading for us 4 miles.
1138  [UNCLEAR: best guess]
```

— page 38 —
```
"E" NARRATIVE  U.S.S. TRUTHA (SS421)
28 APRIL 1945 (Continued)

Dove and as we went down sent out "Bogey overheard" to fighters. We have now become a fighter instead of a fly and in our air-dales got here in time. The trip is not for an unpleasant surprise. We are in good shape now with 3/4 of a battery, 2000 lbs of depth, and will continue to draw both in the contest by the fighters with our hooks.

1151
Surfaced and heard a fighter call "Tallyho", on our late pursuit. He didn't get the ship had pulled away. I didn't get the "Torpedo" twice. Kept on our course and took our rightful position in the attack.

1330
Sighted a PT boat. Must have been 3 fighters around. [HANDWRITTEN: BCS] was seen. It is heavily armed. I don't know if it is a critical situation.

1400
With fully charged battery, we will attack. Close up, told fighters we were circling and to return to base. Thanked them and
```

— page 39 —
```
U.S.S. TRUTA (SS-421)
"E"  WAR N A V Y

28 APRIL 1945 (Continued)
        continued on course 090°T headed for GUAM.
2312   A/F contact, Jap planes.
2315   lost contact.

29 APRIL 1945
        Noon Position, Lat 28-51-00N Long 136-45-00E
0205   A/F contact - Jap planes.
0219   Contact reached saturation, stopped sweeping,
        and steadied on us. SD contact 14 miles.
0245   Dived.
0246   Surfaced. No contacts.
0445   Shifted running lights; keyed SD 4 miles.
        D/C'd 1/2 of him to turn on his lights.
        No A/F signal. Shut down to repair ST
        gear.
0635   Dived.
1015   Exchanged calls by S/R radar with and
        [STAMP: U.S.S. POGY]
1143   Received message from Spot saying she was
        running for a downed aviator, 60 miles from
        us in air surface zone. Watch should flank
        her and her direction.
1500   Hard bridge from POGY that aviators hid
        from pickup, making D/C'd on POGY if
        further assistance was needed. Reply was
        "yes" to Guam.
2235   Heard exploration since Stincroft. Had
        for 2nd exploration, bearing of 30°.
2330   Should change course and spot to be
        able to make POGY and Spot's position.
2345   Single to change course and spot to be
        30° from 28-51-00N 136-45-00E.
        [UNCLEAR: best guess] from that bearing,
        30° from 28-51-00N 136-45-00E.
        27-20-30N 137-20-00E.

30 APRIL 1945
        Noon Position, 12-16-46N, Long 137-23-28E
        [UNCLEAR: best guess] with A/F search and rescue contact.
        [UNCLEAR: best guess] on course, continue in area.
0635   Dived.
0810   Sighted B-29's.
```

— page 40 —
```
U.S.S. TARPON, (SS-21)
"8"
NARRATIVE

30 APRIL 1945 (Continued)
  1245 Passed and exchanged calls with Crayville.
  1830 Having received a message from Submarine
        to return to Guam at sunset, course 180
        and headed in.

1 MAY 1945
  Noon Position Lat 23-10-00N, Long 137-32-00E
  Underway for GUAM.
  0821 Made train dive.
  0840 Surfaced.
  2000 Passed Seabirdfish.

2 MAY 1945
  Noon Position, Lat 18-16-00N, Long 137-33-00E
  Enroute to GUAM.
  0610 Sighted a B-29; distant 10 miles.
  1130 Exchanged calls with H. K. T.
  1838 Sighted a plane running lights. Triggering
        alarm. Found 2 grounds in Sunday; wind
        with about 8 distance; and pursued over
        west and flank. Plane passed over and
        was out of sight contact.

  "It may be of interest to note why too much
  emphasis is placed on the necessity for
  crossing the 180th meridian. It is a full solo
  when the signal is made, and a signal to all
  ships in the area. Since this only has shown
  up in the past, I am not sure if it is required
  by another signal, knowing what it is up to.
  It is strictly a matter of knowing who is who
  and not distinguishing between friendly and
  enemy. I do not know if this is so, in
  addition to the signal received, but of course
  the dominant signal could be friendly or a mixture
  of planes only by its contact."

2 MAY 1945 Noon Position, Lat 15-39-00N, Long 141-37-00E
  Enroute to GUAM.
4 MAY 1945
  0900 Arrived GUAM.
  - 32 -
```

— page 41 —
```
U.S.S. HUTTA (SS-21)

"C"
MEATHER
The weather during the entire fifteen (15) days in the area was characterized by dense fog and haze. Eight (8) days were characterized by "dense" and "haze" for (zero to one mile visibility), whereas "mist" to "moderate visibility" (one mile to three miles visibility) prevailed during the other seven (7) days.

The temperature at this time of year required consideration "cold." The average daily temperature was 72° F, the average nightly temperature was 66° F, and the maximum temperature experienced in the area was 77° F.

No storms of any sort were experienced outside or from station, or while on station. Wind was practically negligible during the entire stay in the area, thus having a smooth sea at all times.

"D"
TIDAL INFORMATION
In general, currents and tides coincided favorably with the data listed on charts and in sailing directions. There was VERY LITTLE tide experienced, in contrast to the vicinity of the KURUSHIO current, as it extended from two (2) to three (3) knots in the area of charts and in similar directions; 3 to 5 knots was encountered in the KURUSHIO current vicinity.

In transmitting the passage between AURIC SHIP and K.A.R. SHIP, the KURUSHIO current, east of K. Islands long 105° W, was experienced during submergence. This is coincident with charted figures.

Proceeding northward just west of the N.W. passage, the current was not at all becoming obvious, unaccounted. No perceptible current was found at this place in YELLOW sea areas.

"E"
NAVIGATIONAL TIDES
In general, navigational tides for this area were the pronounced small, high tides which indicated that the tide was very effectively and accurately tracked by charts. Due to the high navigational currents produced by the currents in this area, it has been found to be very difficult to establish navigational tides. The following tides can heavy most of the time due to
- 33 -
```

— page 42 —
```
U.S.S. TRUTTA (SS421)

"NAVIGATIONAL AIDS"

which provided.

No listed navigational lights were observed in this area. This may have been due to the limited visibility so prevalent most of the time.

"SHIP CONTACTS"

Few ship contacts worthy of torpedo fire were observed during this patrol. Only one (1) convoy was seen to be in the vicinity of DAITAN MAN RAI, Latitude 38-00-00N, Longitude 125-00-00E.

The majority of contacts were possible submarines and patrol craft. In certain localities concentrations of fishing boats and junks were found. These total points of junk floated are:

(1) Latitude 35-15N, Long 125-20E, at one site were a station (15) radar contacts being plotted. These vessels ranged from small junk type fishing vessels to two-motor schooner type vessels. A good many of them carried a white flag. Our A picked up most of them in plenty of time to avoid.
Pike larger ones were picked up at 12,000 to 20,000 tons.

(2) Latitude 38-10-00N, Longitude 121-30-00E - around this vicinity there are floating vessels of all kinds. Most of them carried one white light, but very few picked up in this area. Some of these were fishing vessels seen on the bar scope many times in this vicinity.

The info signifying is tabulated on the following pages with pertinent numbers.

- 34 -
```

— page 44 —
```
U.S.S. MURRAY (DE-363)

REPORT OF SUBMARINE PATROL
No. 1185  (Classification:  Confidential)
Date:  15-22-43

|  No.  |  Date  |  Time  |  Position  |  Remarks  |
|-------|||||
|  1    |  15-22 |  0342  |  35-12N    |  Sighted  |
|       |        |        |  125-45E   |  submarine  |
|       |        |        |            |  on surface.  |
|  2    |  15-22 |  1445  |  35-15N    |  Fired 2 torpedoes.  |
|       |        |        |  125-50E   |  Hit confirmed.  |
|  3    |  15-22 |  1600  |  35-20N    |  Conducted depth charge attack.  |
|  4    |  15-22 |  1800  |  35-25N    |  No further contacts.  |
|  5    |  15-22 |  2000  |  35-30N    |  Proceeding to patrol area.  |
|  6    |  15-22 |  2200  |  35-35N    |  Weather conditions:  good.  |
|  7    |  15-22 |  2400  |  35-40N    |  End of patrol.  |
|  8    |  15-22 |  0600  |  35-45N    |  Resumed normal operations.  |
|  9    |  15-22 |  0800  |  35-50N    |  Report submitted.  |

[HANDWRITTEN: Additional notes:  All systems operational.  Crew morale high.]
[STAMP: CONFIDENTIAL]
- 36 -
```

— page 45 —
```
U.S.S. TRUTHA (S-421)

"g"

AIRCRAFT CONTACTS

Enroute to the area, many SD contacts were made, but few were actually seen, while performing special mission work in the BENGO SOUND area, we were driven down five (5) times in one day by radar equipped planes. Only one (1) of these planes was seen, that being a RUTS.

In working our way westward thru the NAJEST SHOOT chain between ALASKA SHIMA and T.L.A. SHIMA, we were forced down by a very high radar equipped patrol plane thirteen (13) times in one day. By patrol planes were identified as being from RUTS. This affected the plan for also playing express and radar indications. In two instances, the plane passed overhead, a team being plainly heard by the con and lookout, without any AR signal being heard, and different a higher frequency were also able to detect it at about 1000 yards, (TWS 601). No bombs were dropped as such.

Upon returning from the area, in this same spot, duly downed prior radar planes were encountered and we were held down part of one night and part of the next day. The SR and crew were taking no more signals heard. So "thirty" for details.

In the YELLOW SEA, several planes were encountered south of Latitude 35-00N, just west of the NAJEST SHOOT chain. A friendly PBY and four fighter or scout planes were seen thru the division on air-subtraction. On two (2) occasions, while on patrol, no AR signal dropped, nor was any bomb, however, dropped during flight. Prior writing on this would seem to indicate that we could have been on night search, lat. 13-10N, long. 124-30E.

Above lat. 35-00N, only one or two planes with RUTS suddenly appeared out of the area on 22 (twenty-two) occasions, and two (2) were sighted at 37-12N, long. 125-45E. The other aircraft, particularly during the night, were not identified as such, and further efforts were dispatched to the area, but, as usual, their effectiveness was very poor.

One flight of B-29's was seen on the way back from patrol, as well as a couple of other DUMBOs on life guard duty.

- 37 -
```

— page 47 —
```
U.S.S. TRUTTA (SS421)

"H" ATC. D.A.T.A.

TORPEDO ATTACK NO. 1
Time - 0332(T); Date: 15 April 1945; Lat 35-44-00N
Long 125-45-00E

TARGET D.A.T.A.  DIALOGUE INITIATED
This attack was on one of two ships which were tracked for over two hours from initial range of 56,000 yards. Both targets appeared as silhouettes during the run. Visibility was about 3,000 yards due to time of the morning. The targets would not be seen well enough to be identified. The size of them impression made by the identified targets, but firing position was not obtained. The approach officer estimated that they were only about the size of CHIDORI or DD patrol vessels.

SHIPS SUNK: None
DAMAGE: None
TARGET LEFT: Unknown
COURSE: 315°
RANGE: 3180 yards
SPEED: 10 knots

OWN SHIP D.A.T.A.
Speed: 17 knots; Course - 060°T; Depth - Surface firing

Type attack:
This was a radar surface approach and attack. All torpedoes were fired on radar ranges and bearings. After searching for two hours, which a favorable firing position was obtained from (1) at 3180 yards, we fired in initial firing range of 3180 yards, with a 3° spread.

Since the targets could not be identified, a depth of six feet was set on all torpedoes. No hits were scored. One gun of our explosion was heard 45 minutes after firing.

- 39 -
```

— page 48 —
```
U.S.S. TROUT (SS421)
"THE ATTACK DATA"

ATTACH NUMBER ONE

| Tubes Fired:        | 1  | 2  | 3  | 4  |
||----|----|----|----|
| Track Angle:        | 11°| 19°| 12°| 12°|
| Gyro Angle:         | 355°30'| 356°40'| 36°| 354°|
| Depth Set:          | 21 ft| 21 ft| 21 ft| 21 ft|
| Power:              | 14.5| 14.5| 14.5| 14.5|
| Hit or Miss:        | Miss| Miss| Miss| Miss|
| Mark Torpedoed:     | 14-34| 16-34| 16-34| 14-34|
| Serial No:          | 26285| 26771| 26341| 26515|
| Mark Explorer:      | 2805| 2617| 2637| 1997|
| Serial No:          | 26771| 26771| 26771| 26771|
| Situation Set:      | Contact| Contact| Contact| Contact|
| Solution Actual:    | 14.1| 16.8| 16.1| 16.1|
| Torpedo War Head:   | 9439| 14678| 20928| 12985|
| Serial No:          | 9439| 14678| 20928| 12985|
| Explosive:          | 0.5| 0.5| 0.5| 0.5|
| Firing Interval:    | 0.50 sec| 0.50 sec| 0.50 sec| 0.50 sec|
| Type Spread:        | 0.01| 0.01| 0.01| 0.01|
| Firing Range:       | 3100| 3150| 3100| 3050|
| Torpedo Run:       | 3500| 3475| 3425| 3400|
| Sea Condition:      | Calm| Calm| Calm| Calm|

Overhaul Activity:  - Pearl Harbor, HI -

Remarks: Upon careful consideration of all the data, it appears that the ships were operating much closer than what indicated by the size of the pip on the radar. This is verified by the assistant approach officer on the bridge who adjusted the target course through the period 7.3. It is noted that this control should have been good. It is believed that the torpedoes ran under the target.

- 40 -
```

— page 49 —
```
V.S.S. TRUTHA. (53421)

"T" MINES

Numerous floating mines were sighted throughout Area Twelve. Three (3) areas in particular were conspicuously marked by an abundance of mines. These locations are listed as follows:

1. Between Lat. 33-201, Long. 127-55N and Lat. 31-5N, Long. 127-05E - seven (7) mines sighted at random between 1200 and 1800(1), 11 April 1945.

2. In vicinity of Lat. 32-30N, Long. 124-20E - twelve (12) mines sighted during the period 1200-1400(1) 11 April, on the surface involving thereafter, a drifting vessel, so that the number would undoubtedly be more soon. Two (2) ID type vessels observed chill afternoon in that vicinity looked as though they might have been engaged in mine laying activities.

3. Between Lat. 33-23N, Long. 122-75E and Lat. 33-46N, Long. 123-57E - twenty light (28) mines seen between 0530 and 0700(1), 11 April 1945.

Only two (2) mines were seen north of Latitude 35-00N. These were drifting seen by periscope during submerged patrol en route to KIMUR, KOREA. Lat. 36-52N, Long. 125-20E, during afternoon of 16 April 1945.

Positions of miscellaneous single mines sighted are: Lat. 32-16N, Long. 126-15E - two (2) mines, afternoon of 26 April 1945; Lat. 32-15N, Long. 127-05E - one (1) mine, afternoon of 26 April 1945; Lat. 29-30N, Long. 128-32E - one (1) mine, afternoon of 27 April 1945.

- A1 -
```

— page 50 —
```
USIS: TENTA (58121)

"J"

ANTI-SUBMARINE MEASURES AND EVASIVE TACTICS

"Plane coverage of areas surrounding the southern part of YUGO and the LARGEST SHIP chain proved very efficient and kept us down to a great deal of the time during transit both to and from area 12. In these instances, while on patrol, we were forced down thrice (3) times during one day and night by his patrol planes before we could shake them off.

Returning from patrol, similar radar equipped planes forced us down five or six times during the night and passed by without making the usual attempts to engage us. The visibility was very poor and the planes seemed to be much more stubborn than before concentrated and maintained heavy offensive "hold down" tactics. They are apparently equipped with high frequency radar. The planes were picked up as low as 30 or 50 ft. on the surface but were not observed to dive. It is possible that pressure air supply limitations could limit who it would have been most advantageous to dive during the day hours and that such subjects could be considered as U.S. plane coverage for survival hours. See "Mistrivo", 27-28 April, 1945, for further details.

In the YELLOW Sea, a few day pilot patrol spots without warning on the uss escorting ships within the ship's hour of course. Meanwhile, we also observed 57 ships, 50 boats, we submerged immediately at this time, and two boats were dropped in still.

Indications of submarines possibly being employed as anti-submarine or patrol vessels noted 1 couple of times. On one occasion, small craft with a displacement of 150 tons, 500 FT. planes with a range of 200 miles, and two (2) submarines working together, as I can recall, just this area of interest. It is possible that this might have been a possible "sub-hunting" working together in anti-sub.
```

— page 51 —
```
U.S.S. TURTLE (SS421)
“7”
ANTI-SUBMARINE MEASURES AND DEFENSIVE TACTICS

about 10 knots, but nothing was heard. Again the same night about three hours later he was in a position about 10 miles to the north, the next 200 bells saw what appeared to him to be the wake of a torpedo perpendicular to and about 200 yards on the other side of the ship. He could see how the wake looked not conspicuously straight and similar to torpedo tracks. The fact that sound did not hear anything is hard to explain, if they were torpedoes passing so close to the ship.

A few patrol boats were sighted but never bothered us. The convoy was did also not CHIRP. Shells were fired toward 2 D's and one CHIRP. Being very familiar with the situation, they appeared to be doing some reconnaissance patrols with antenna and radio. We were in the vicinity of the convoy and were approached by anti-submarine vessels who were looking out for us.

As a result, I may mention that we had dropped two Navy close range bombs near us as we were passing through. We had no contact with the boats or the planes on patrol. We were only able to observe the activity of the planes and surface craft, but the activity was of a suspicious nature. They were busy with their planes. This happened about 35 miles east of Mrs. 106 N. 120 Fumigated.

The mine fields reported in motion “H” on, of course, so clarified as definite sources of submarines in the area. As in all, the anti-submarine patrol planes through minefields. Their effectiveness seemed to be more effective than they have been in the past. No real “new” anti-submarine tactics were observed.

“K”
MAJOR DEFECTS AND DAMAGE:
1. Hull and Machinery
   (a) Bandit Leg
   Erroneous Pearl Harbor to Saipan a year in the transiting. Followed reasonably as stripping the sea, an initial probability of someone stripping during the forward route. Reported to the Navy and the Forward Group. The leg is part of the allowed list of “fun” parts.

The group was built up which side and now took were out. The leg functioned
- 43 -
```

— page 52 —
```
U.S.S. TRITON (SS-201)

MAJOR DEFECTS AND DAMAGE

1. Hull and Machinery
   (a) Bendix Log
   Satisfactorily for a short period of time thereafter, but soon became erratic.
   The U.S.S. Triton overhauled the log while moored to her at Saipan.

   After departure from Saipan it again functioned erratically. Upon investigation it
   was found that the transmitting generator slip rings were badly burned. The spare transmitter
   was installed and satisfactory operation was obtained the remainder of the patrol.

   (b) Starboard Propeller
   The starboard propeller was damaged by boosing fouled in the mooring cables of an old drum in
   Saipan Harbor. Two blades were damaged and the shaft was warped around the strut just
   forward of the strut bearing, twisting the strut. Efforts to bronze sleeve the strut failed
   to restore normal vibration which was about speed, above 12 knots and this short dive propeller
   was replaced upon return to Saipan after one night at sea.

   (c) Piping
   The leaking of both pipeworks was persistent and gave considerable trouble. More attention
   should be given to the lower piping and the shown through two piping did not prevent
   the water from pouring in vents at patrols.

   The piping has been changed, however, to work over this period but has not been able to
   recover during flow of water. A serious leak has been noted in the forward ballast tank
   and should be taken for excessive corrosion. Piping, valves, and fittings should be
   examined closely and engine room should, through investigation, discover the source of this
   egregating defect.
```

— page 53 —
```
U.S.S. TRITON (SS421)

MAJOR DEFECTS AND DAMAGE

2. Ordnance and Gunnery.
   (a) The 5" gun foot firing mechanism failed during a gun attack due to a leak in the hydraulic system. This was corrected and no other troubles were encountered.
   (b) The 5" gun trainer seat was shored off of the mount. The cause of this is unknown. It is believed that the holding brace was not designed to prevent a reoccurrence of this.
   (c) The 40MM guns were broken loose from the mounts, which was probably due to high speed turns. This is heavy duty equipment and should be secured plus heavy seas pounding both frequently in rough weather. This should be designed or braced in a manner to prevent this.
   (d) The 20MM jammed during firing due to a faulty magazine.
   (e) Seven Mk 18-1 were carried in the after Torpedo Room during this patrol. The intact instructions were carried out and no troubles were experienced.

COMMUNICATIONS
   Communications with the home bases were satisfactory in general. Summary of dispatches sent is attached hereto. Summary of receipt of Fox Broadcasts is in separate report.

   No named to get all serials except serial BAKER (about 26 April) and apparently received all non-serial messages.

   Radio communications could be much improved. The main trouble was the uncertainty of those aboard other submarines in the structure of the RTU's. It was difficult to get information from the RTU's. The only thing that was really understood was that the other submarines were trying to get something from us. This was a problem of misunderstanding.

   VHF communications between aircraft and submarines was usually pretty good, but we did not know to whom we were 'talking', nor did they know who we were.

45
```

— page 54 —
```
UBISI TRUTHA (SBA21)

COMMUNICATIONS:
Refer ComSubPac #71166. Guarded litguard frequency at the designated, but heard nothing from Super problem with voice on "Cyclone Threat". Kept track of downed aircraft other aircraft and kept track of downed aircraft, but more were nearby. We were East of KUSUEN at this time.

Communications on the Life Guard frequency were excellent at all times. Lack of knowledge of miscellaneous aircraft and life guard ships and planes' voice calls, however, proved detrimental to an intelligent understanding of the total situation at hand.

RADAR
The performance of all radar equipment was excellent throughout the patrol. Casualties were to the minor structure involving the replacing of a true and three. The ES stayed in the remarkably well and required very little attention. The SM performance was outstanding; it was usually filled with echo, most of those people were and it could show and track those on double time. The OMO was a Patrol which picked up 40,000 yards on the surface. A Snapper was picked up at 8 miles, the USS SAPPHIRE was picked up and tracked from 36,000 yards. A periscope was tracked from 20,000 yards on the surface.

Before we could estimate the size of radar contact, we had to consider the transponder characteristics. For example the surface ship was picked up at 9,000 yards.

We had a slight indication of phantom jets that numerically would come to a situation. Some of the contacts were made at 12 knots and with the other contacts at about 12 to 15 knots and the only indication was the size. The distinction was made in the radar and their effects.

METAL: 180 lbs., Torp. 6, 7, 8, 9, Bar 30:19, Tlo 0000
Patrol boats: 56,000 yards, Temp and conditions same as USS SAPPHIRE: 20,000 yards, Temp 62, Bar 30:15, Ind #2, "Time O'kl, Foggy weather."
```

— page 55 —
```
U.S.S. TRUTTA (SS421)

"T"  RADAR

Sampan(Sails), 44,000 yds, Temp 72, Bar 29.84, Ind 42, Time 0344, Foggy weather.
Sampan (small), 19,400 yds, Temp 73, Bar 29.76, Ind 49, Time 0950, Foggy weather.
Destroyers 80,000 yds, Heavy 65, Bar 29.95, Ind 45, Time 2300, Heavy weather.

The SB was used very little. Contacts were picked up at ranges up to 30 miles. We had only one SB actually out and that was a Power Transmitter for the color indicator. This was replaced with a spare. Many planes were not picked up on the SB but this was due to the fact that they were flying low. The SB would pick up low flying planes at ranges up to 30,000 yards.

The ARP and SPA really shows that radar signals carry a long way in this area. We were picking up shore based radars at 110 miles. By instruction orders, it was decided that we would use this method to establish a range into two blocks. This would very shortly result in them coming in. All signals around our bubble were with the ARP and SPA.

ARP consultations were good whenever we could get the attention of the other radars. Vying the pulse pitch and taking notes is the same method of establishing other radars.

The radar doctrine used was a dual ST and SC search rolling. The ST was for long range and the SC for short and then the ST for 3 sweeps to find contact while rolling was used to get the best picture. The high voltage was not setting properly.

The log on radar was easily recognized from ST. The interconnection of the SB was inferior to the radar wider with a two inch of signal loss in the observation. Below is a sketch of the radar.

[UNCLEAR: sketch]
```

— page 57 —
```
U.S.S. TRUTHA (SS-21)

RADAR

SUJAMOSE SHIML. 157mc
OSGUT GUITO. not spotted. 144, 146 and 155.

Below is sketch of Jap 10cm radar interference:-

  7  9  1  9  5

H.KEBURI TO

[SIGNATURE: illegible]

SUBMARINE AND ESCORT VESSEL
- 49 -
```

— page 58 —
```
TIME    DATE      LAT        LONG       FREQ   FR   FH   DESCRIPTION                       SOURCE                          CHARACTERISTICS
0200   6/4      28-23N    136-20E    118    1000  6   Directional                      Probable V/C but after        [HANDWRITTEN: 2 min. at depth of
                                                                                          1st and 2nd sighted surface contact
                                                                                          signed a half out 6 miles
                                                                                          [HANDWRITTEN: 1]
1010   6/4      31-30N    133-30E    157    1000  5   Directional                      Search                        Aircraft's Parying
                                                                                          [HANDWRITTEN: was
                                                                                          [STAMP: Signed two TAFU 7
                                                                                          [HANDWRITTEN: in after APR
                                                                                          [HANDWRITTEN: start]
1130   6/4      29-31N    132-02E    147    1000  3   Non directional                  Very weak                     [HANDWRITTEN: 1]
1430   6/4      29-31N    130-58E    155    700   1   Non directional                  Very weak                     [HANDWRITTEN: 1]
1500   6/4      29-31N    130-58E    157    700   1   This case right                  [HANDWRITTEN: Gave all experience of
                                                                                          VC and heard him twice
                                                                                          [HANDWRITTEN: 1st mixed up 3D and S.J.]
1700   6/4      29-31N    128-40E    300    100   Directional                      V/C probably                  [HANDWRITTEN: SALISH TO]
1725   6/4      29-31N    126-05E    78     600   2   Non directional                  [HANDWRITTEN: SALISH TO]
1725   6/4      29-31N    126-02E    162    700   1   Directional                      Search                        [HANDWRITTEN: SALISH TO]
1800   6/4      29-31N    125-05E    80     600   2   Directional                      V/C search probably           [HANDWRITTEN: SALISH TO]
2117   6/4      31-59N    126-26E    155    100   Directional                      Search, lobbing               [HANDWRITTEN: Probably Jap Sub.]
2200   6/4      26-00N    155-00E    100    100   Directional                      Search
```

— page 60 —
```
THR DATE  HAT  LONG  FREQ  PR  FM  DISRUPTION                SOURCE          CHARACTERISTICS
  26/7   32-22N  125-13E  189  1000  8  Serow, slight plane    Freable plane
  11:00  32-24N  125-47E  500  17  It was maligned in...   DAINO GRIUO or SASHU TO
  11:05  32-24N  125-56E  750  12  do                      do
  11:15  32-24N  125-56E  500  500 Directional search      Swoop west as SHEL
  11:30  32-32N  128-08E  1000  0  This signal went to...   Aircraft
  12:00  32-32N  128-08E  300  100  Slow scope, probably...  Probably DAINO GRIUO
  14:00  29-05N  125-57E  500  20  Same as above           do
  21:00  29-05N  125-57E  500  20  20 second sweep, swing  SHINDA
  03:51  29-31N  125-10E  1000  0  Signal started rock...   Aircraft wind
  04:00  29-31N  125-10E  500  500  Slow 30 second sweep...  Probably OSHI
  05:00  do       do      144  500  do                      do
  22:00  27/7   136-34E  155  1000  Slow Sweep, went to...   Aircraft
```

— page 61 —
```
UBISHA KENTHA [53421]
"T"
SOLAR GRR. AND SOUND CONDITIONS:

Latitude 29-20N    Monday, 9 April 1945
Longitude 131-50E    Time of occurrence 2031

Very pronounced local fish noises. On rig gear they may be mistaken for low frequency pings, as if the signal was being more "broad" than usual; of receiver tuning will "prove both" identity.

Latitude 32-22N    Friday, 13 April, 1945
Longitude 124-31E    Time of occurrence 1100

Pinging of a DD "Miller" group was picked up by the "TMR" gear and shortly afterward by the "RGR" as dis-tinct and similar. Only one of the "egg" gear is dis-posed to be pinging. On the "egg" gear this ringing in-creased, possibly because of a faulty receiving mechanism. Most frequent ping interval, eight seconds frequency, 8.5 cycles. [This is chintzy, but the limitations of "egg tuning"] The noise was run down. Very little reverberation was noticed. On the "RGR" gear, this pinging came in as very high pitched squawk, while placing caution to several operators. The drop off was at level 170 foot, and bottom. Temperature of water, 44 degrees.

Latitude 37-30N    Saturday, 21 April 1945
Longitude 124-30E    Time of occurrence 1100

The pinging of a "Chidori" torpedo boat was picked up while on the surface by the "egg" gear. The distance was about 200 yards. The noise was very distinct and uniform. This was noted to be 8 cycles, and the ping one quarter of a second to about one second. The frequency was "frozen back to 1, less on the "egg".

Yellow Sea 20.

Fish or water noises may easily be mistaken for pinging. This is a high pitched sounding and something sound at definitive intervals, discordant in pitch. The offset is a function of frequency modulated signal.

"O"
DENSITY LINES

In general, on all dives in area. Twelve isothermal waters in various locations. Effective grounds to depth of 2000 yards were noted to be slightly less, but those slight plants apparently had negligible effect on ballistic and sound
```

— page 62 —
```
U.S.S. TRUT H. (SS421)

"D" DENSITY LAYERS

conditions.
     a five (5) degree negative gradient was found
at 1300' on 26 April 1945 between blister depth of
from  50 to 80 feet at latitude 32-25N, longitude
126-30W.  No water able to be taken for one hour
and twenty minutes under this layer at a keel depth
of from 90 to 120 feet.

"E" HEALTH, FOOD & HABITABILITY
1. The health of the crew remained very good through
out the patrol. Two men were on the sick list
for two days each, one with an abscessed tonsil,
and the other with an unsofted know.
2. The food was excellent. The proportion and var-
iation of the menu, to observe with daily buck-
ets added in keeping morale at a high level.
3. Cool weather kept the habitability good. While
on section the air conditioning was eased and
two heaters turned on to give maximum comfort.

"F" PERSONNEL
(1) Number of men attached after previous patrol - Long
     (This is the first run)
(2) Number of men on board during patrol -  79
(3) Number of men qualified at start of run -  76
(4) Number of men qualified at end of patrol -  72
(5) Number of unqualified men making their -
     first patrol -  33

"G" MILES SPENT & FUEL USED
     Pos. 1 to Ed. Capin.  273 miles  56,375 gal fuel
     Elision to  253 miles  56,375 gal fuel
     Im from Tully  241 miles  29,250 gal fuel
     Area to Gural  210 miles  16,500 gal fuel
     Totals  1105 miles  160,688 gal fuel
```

— page 63 —
```
U.S.S. TRUTTA (SS421)

“5” DURATION:
Days enroute Pearl to Saipan - - - - - 11 days
Days enroute Saipan to Area 12 - - - 8 days
Days in Area Twelve 7 days
Days to Guam 1 day
Days submerged (on station) - - - - 6 days
Days on station (including station 2 days) - - 8 days
Total number of days patrol - - - - - 41 days

“7” FACTORS OF ENDURANCE REMAINING
| Torpedoes | Fuel | Provisions | Personnel Factor |
||------|||
| 21        | About 6000 | 50 days | 30 d/ys |
| gallons   |          |          |                  |

Limiting factor of this patrol - - - - - Lack of fuel
(Due to primarily to total of five(5) days full power running in accordance with special mission orders).

“8” CONCLUSIONS, RADAR AND SONAR COUNTERMEASURES
1. Radar countermeasures - - - - see Section M.
2. Radio Countermeasures
   Japanese jamming was encountered on all frequencies a majority of the time. The Rips never succeeded however, in keeping us from receiving as much as we could on our own. Details of jamming are being forwarded to ComSubPac in accordance with ComSubPac 12931 of March 1945.
3. Sonar Countermeasures - - - see section N.

“9” REMARKS
i. General
   This patrol was disappointing to us in the lack of targets. However, in spite of those insurmountable obstacles, it brought a growing realization of the fact that we could and did come close enough to notice their movements, and should we be given the opportunity, we would strike with some malice. First but, must consider that during the run right into the heart of one and daring, to make that change was a great morale
```

— page 64 —
```
UsS 41, TROUT (58421)
"REMARKS"

2. Personnel
Both officers and crew behaved admirably in every instance in accordance with the highest traditions of the Naval Service. It was an unusual patrol, but the thoroughness provided and training was excellent. The boat was held every way we were not officially agreed with the many and the unqualified officer continued studies towards qualification. Particular toward is difficult to assess as all were excellent, however, special attention should be made of the Executive Officer, Lieutenant Commander Franz Haskins for his tireless work in arranging work down on any sort of working, of the work of Daniel E. Smith and other officers and pilots; whether for us in the conduct of any radar contests, his instruction is invaluable in keeping the SJ, 267, 66, 273, USNR, CUBS, 18, and 81 in first class condition the entire patrol.

3. Material
With the exception of the leaky MJ periscope, all material functioned smoothly and properly.

4. Organization
It was soon found that while lying off the broken above lines in similar water for long murk, that it was impossible at night on foggy weather to call the tracking party or investigate the condition of the boat. We developed an organization in which the Officer would keep constant track of the men, and the Officer bringing in two vicinity parties by shore side would keep the men in line. This was a great help in keeping the men busy, which was essential for morale and work duties.

5. Identification by SJ Radar
The Commanding Officer wishes to stress the impor-
- 56 -
```

— page 65 —
```
U.S.S. TRUTHA. (SS421)
REMARKS

tance of furnishing our submari nes with an APR band
up into the loan wave lengths. The Japs definitely
have such a radar, and its detection is vital for
these rochers - first, in order that enemy contacts
with their radars not detect those who change
suddenly. In order that we not compromise our proce-
dure, signal by sending a checking on our spy vis
Al to a strict window later than on S. 5. 1. 1. 1. 1. 1.
looks like Si but is actually Jap radar. 2nd,
too protection against current flow on a new device
up with their radar without our knowing any knowledge
of their purpose unless Si is used. In this case,
the SD surely draws them in the more quickly. The
APR should be made directional; if so, its value
would be increased 20 percent.
- 57
```

— page 66 —
```
PBS-201/A16-3
SUBMARINE DIVISION 10 HUNDRED ONE
jrv
Fleet Post Office
San Francisco, California.
5 May, 1945.

C-I-R-C-U-L-A-R

FIRST ENDORSEMENT
TO FLATER DEPOT of 16 War
Postal dated 5 May, 1945.

From: The Commander Submarine Division 10 HUNDRED ONE.
To:   The Commander-in-Chief, United States Fleet.
Plan: The Commander Submarine Squadron 1.
(1) The Commander Submarine Force, U.S. Pacific Fleet.
(3) The Commander-in-Chief, United States Pacific Fleet.

Subject: U.S.S. KETTLE (SS-204) - Report of First War Patrol.

The First war patrol of the KETTLE, under the command of Commander A. C. Smith, U.S. Navy, was conducted in the Yellow Sea Area. Enroute to that area, the patrol spent two days off Bingo Sido to guard against major enemy craft, and conducted reconnaissance from the island sea.

The commanding officer of the KETTLE was the group commander of a coordinated group consisting of the KETTLE, PELICAN, and LUCY. The patrol was composed of four (4) days duration of which fifteen (15) days were spent on station. The patrol was terminated by low supply of fuel, this discharge of priority to a total of five (5) days running, all power in accordance with special mission orders.

The Commanding Officer made a most determined effort to find worthy targets, to which, he came thoroughly. Other than the usual junk of fishing craft and a few small enemy fishing vessels, the majority of these craft were unarmed-southern vessels. In addition, he made searches against enemy vessels. A...

ATACK NUMBER ONE - 15 April, 1945:

After striking two ships from an aircraft range of 56,000 yards, Four Mark 14 torpedoes were fired against a 1200 ton vessel, a score of 3100 yards. The first torpedo struck the ship and the second missed. The ship was identified as a troop ship, but this ship was not the enemy right ship. We had no identification of the ship, but the ship was reported sunk by the initial report, and found to be the enemy.

Initial report, was found to be the enemy.

ATACK NUMBER TWO - 19 April, 1945:

In the late afternoon of 19 April, 1945, the KETTLE sighted two small engines at a distance of about 4000 yards. The KETTLE was ordered to fire at the 3100 ton, and did so. The torpedoes were fired, but were taken under the 90° 20' and 60° 20' routes. The ship was reported sunk, and the action took place in a similar manner as the first. The commanding officer broke off the engagement when he felt that planes should be arriving.
-1-
```

— page 67 —
```
FPS/201/126-3
SUBMARINE DIVISION TWO HUNDRED ONE
Fleet Post Office
San Francisco, California
Serial (016)
5 May 1945

S

— page 68 —
```
FBS-20/166-3
SUBMARINE SQUADRON TWENTY
Care of Fleet Post Office,
San Francisco, California.
8 May 1945.

C-O-P-Y

SECOND ENDORSEMENT
L. S. PARKS, Lt. S. N.
Alc. 43/39/76-5
of 1 May 1945.

From:     The Commander Submarine Squadron TWENTY.
To:       (1) The Commander-in-Chief, United States Fleet.
          (2) The Commander-Submarine Forces, U. S. Pacific Fleet.
          (3) The Commander-in-Chief, United States Pacific Fleet.
Via:      (1) The Commander Submarine Squadron TWENTY.

Subject:  U.S.S. TRITON (SS-201) Report of First War Patrol.

1.       Forwarded, concurring in the remarks and recommendations of
         damage assessment by Commander Submarine Division TWO HUNDRED ONE.

2.       The Commander Submarine Squadron TWENTY congratulates the
         Commanding Officer, officers and men of the TRITON on the completion of
         their ship's first patrol and on the aggressive resourceful manner in
         which it was conducted.

L. S. PARKS
```

— page 69 —
```
B-12-104(A)A6-316(8)
SUBMARINE FORCE, PACIFIC FLEET
Serial 0113
CONFIDENTIAL

16 May 1945

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

Subject: U.S.S. ZULU (SS-241) - Report of First War Patrol
    (19 March to 14 May 1945).

1. The first war patrol of the ZULU, under the command of Commander
    Arthur J. Smith, U.S. Navy, was conducted in the Yellow Sea, Japan Sea, and
    Southern Japan, and was conducted in accordance with the operational orders
    issued to perform services of the ZULU, the U.S.S. LINCY, and the
    U.S.S. LUCY. Infringement services were also rendered in addition to offensive
    patrol.

2. The circumstances and determination shown in conducting this patrol
    resulted in very few contacts worthy of torpedo fire. One torpedo attack was
    attempted, two targets which were both large freighters, were sighted, but
    out to sea, and relief after torpedo fire was fired, the underwater ranges obtained
    were unfavorable to supporting torpedoes on target. The underwater ranges obtained
    were not satisfactory, and this patrol was noted. No other torpedo contacts were
    made. To cover, this patrol was conducted, a group of three destroyers, followed
    into action, to attempt to attack by heavy fire; course and speed were very
    unfavorable to another, resulting in the sinking of one small freighter and the
    damaging of another.

3. On her return, home the ZULU was intercepted by a patrol plane using
    "H.1. 3.1" signals; there were only air forces successfully before the return,
    to commence and charge for her victories and air strikes.

4. Award of Submarine Combat Insignia for this patrol is authorized.

5. The Commander Submarine Force, Pacific Fleet, congratulates the
    Commanding Officer, officers, and crew of the ZULU for this successful first
    patrol during which she inflicted the following damage upon the enemy:

    [HANDWRITTEN: 1 - Small Freighter (SU)]
    400 tons (Gun attack No. 1)

-1-
```

— page 70 —
```
FT12-10(A)/AM-5(16)
SUBMARINE FORCE, PACIFIC FLEET
Serial 01143
CONFIDENTIAL

FROM: COMMANDER in CHIEF
TO: Fleet Report Office
Care of Fleet Post Office,
San Francisco, California,
16 May 1945.

NOTE: THIS REPORT WILL BE DESTROYED AFTER 30 DAYS.

SUBMARINE PATRON, ENGINE NO. 257
U.S.S. TANG - FIRST PATROL.

Subject: U.S.S. TANG (SS-306) - Report of First War Patrol
(19 March to 4 May 1945).

1 - Small Freighter (TM) - 400 tons (Gun Attack No. 1)

TOTAL SUNK & DAMAGED - 800 tons

                                                      NEILL CONNOR.

DISTRIBUTION:
(Commodore Sports) (7)
Commodore (6)
Gumbo (6)
JITCA (6)
JAPC (6)
Constructor (6)
Commissary (6)
Commissary (6)
S/S School, II (6)
C.O., U.S. Navy, PT (6)
Consequences (6)
Consequences (6)
C.O. T.B. (6)
Gumbo (6)
Gumbo, Submarines (6)
Gumbo, Submarines (6)
All Squadrons and Div. (6)
Commanders, traffic (2)
Submarines, traffic (1)

[HANDWRITTEN: C. P. Hysum]
[SIGNATURE: E. H. Hens Zas]
[HANDWRITTEN: Ping Secretary.]
```

— page 71 —
```
SS421/29/A16-3/(t)
U.S.S. TRUTTA (SSL21)
Serial: 018
Care of Fleet Post Office,
San Francisco, California.

[STAMP: DECLASSIFIED]
[STAMP: 18 JUL 1945]

From: The Commanding Officer.
To: The Commander-in-Chief, United States Fleet.
    (1) Commander Submarine Division 322.
    (2) Commander Submarine Squadron 32.
    (3) Commander Submarines Pacific Fleet.

Subject: U.S.S. TRUTTA (SSL21), Report of War Patrol Number TWO.
Enclosure:
    (a) Subject Report.
    (b) Short Chart.

1. Enclosure (A), covering the SECOND WAR PATROL of this vessel conducted in the SOUTH CHINA SEA and TALISMAN SEA during the period 2 June 1945 to 18 July 1945, is forwarded herewith.

[HANDWRITTEN: SIGNED]
Franz P. Horkins,
Lieutenant Commander.
```

— page 72 —
```
U.S.S. TRUTHA (SS421)

"1" PROLOGUE

Arrived in GUAM for refit on 4 May 1945, upon completion of TRUTHA's First War Patrol. CONDUCTED 201 hours of patrol. Crew delivered the ship's company the same day and turned over to a crew procured from Camp Decoy for a very enjoyable (2) week's "leave."

On 18 May 1945, Lt. Cmdr. Franz P. HOSKINS, USNR, reported aboard, relieving Cdr. Harold R. DUSON, JR., USNR, followed Lt. Cmdr. HOSKINS as Executive Officer. Ensign Edward F. GILCHRIST, USNR, also reported on board for duty. With the changes in officer personnel, SUBDIV 201 received a return from SUBDIV 201. In addition, the crew enlisted in a lead in subsurface photography which was taken aboard for this run.

On 19 May 1945, the regular ship's company returned to the ship. The ship was selected to assist U.S.S. TRUTHA. The Staff of Commander Submarines Pacific (COMSUBPAC) was very pleased with the spirit and attitude of the crew. PROMPTUS was listed as most cooperative and efficient. The following was accomplished during this period:

Seven (7) training periods were conducted under the guidance of COMSUBDIV 201 Commander, W. J. BUDD. During this training period (1) each man spent 8 hours on night exercises; (2) 3 torpedo exercises to unique training of our dry exercises; (3) 2 tactical exercises with the relationship sour DUSON. Two (2) torpedoes were fired during this run resulting in two (2) "hits."

After a final two (2) day loading period, the TRUTHA was ready for sea in all respects.
```

— page 73 —
```
USSI TRUTTA (SS421)

"B" NARRATIVE
Officers and CPO's on board during this patrol were:

1  Officers:                     Rank          War Patrols (Inc)
   Francis Perkins Hosking       Lt. Cdr.     USNR - 13 patrols
   Jerrell Ridley Dawson, Jr.    Lt. Cdr.     USNR - 10 patrols
   William Robert Anderson        Lieutenant    USNR - 10 patrols
   Donald Raymond Kidder         Lieut(jg)    USNR - 2 patrols
   Peter Paul Crothers, Jr.      Lieut(jg)    USNR - 2 patrols
   Allan Prescott Locke           Ensign       USNR - 5 patrols
   Glenn E. Mills                Ensign       USNR - 1 patrol
   Elwood Harrison Carter, Jr.   Ensign       USNR - 1 patrol

2. Chief Petty Officers:         Service No.   Rate  No. Patrols (Inc)
   GIANNOUS, Victor William      359 77 98    CPH (PA) 3 patrols
   DOBBINS, Zach, (M)           201 73 93    CPH (PA) 2 patrols
   HILL, John Henry             201 73 94    CPH (PA) 2 patrols
   KISHER, Roy Earl             250 74 09    CPH (PA) 2 patrols
   LUTHER, Richard H.           250 74 10    CPH (PA) 2 patrols
   JALATSKY, Norman Ross        359 15 25    CPH (PA) 1 patrol
   STANTON, Bernard John        311 17 77    CPH (T) 1 patrol

3. AVERAGE GAGE:
   Crew, 21; CPO's included, 22; Officers and Crew, 22.

2 JUNE 1945
   Dop-rtu GU: in accordance with COMSUBPAC OPORD, No 119-54, of 31 May 1945, in company with GUAMFISH, under command of Commander, attack group with GUAMFISH and SPOT, plus source of prior units in Group Command.

   1200(X)  First Lt. 16-10-00N; Long 145-00-05E.
   1722(X)  Made rendezvous with SPOT. Took mention on starboard flank.

3 JUNE 1945
   Emerge crew. Sighted enemy friendly planes during the dry.

   1200(X)  Post Lt. 18-29-00N; Long 142-38-00E.
   Rigid tracking drill followed by submerged approach.
```

— page 74 —
```
UBS.S. TRUTA (SS421)
"8" N.R.R. TWICE

3 JUNE 1945 (Cont'd)
on SPOT in afternoon. Made two training dives. SD
Radar out of commission.

JUNE 1945

Barouts CDR: Conducting training dives and approaches
at discretion in coordination with orders from SPOT.

1200(K) Post Lat. 22-00-00N; Long 139-34-08E.
Sources friendly planes sighted throughout the day.
Hold tracking drill and submerged approach on SPOT
in afternoon.

4 JUNE 1945

Barouts CDR: Made one (1) training dive in morning.

1200(K) Post Lat. 27-29-00N; Long 139-41-05E.
Hold tracking drill followed by submerged approach
on SPOT.
1400(K) Radar still out of commission due to oil
in gear.
1500(K) Lt. assisting contractor's housing.
1901(K) Received submarine orders from off to search for
aircraft survivors reported down in life raft to
south of us.
2200(K) Reports of continued dropping an average of 3 ft. 4
points an hour. Looks like a "blow" building up.
Heavy rain, thunderous wind.

5 JUNE 1945

0000(K) Barometer 30.10. Made 6 of 22 points during the
last hour. Wind and sea conditions start up.
0036(K) Liquid rising and the surface rising from 5 ft.
proceed to adjust and secure until returning 7 June
in 24 hours.
0100(K) Barometer 29.78. Dropped in pulse in last hour.
Difficulty 28.1.
0200(K) Barometer 28.61 - drop of 29 points last hour.
0300(K) Barometer 28.41 - drop of 20 points in velocity
and sea conditions. Wind still heavy.
0400(K) Barometer 28.16 - still dropping about 25 points
```

— page 75 —
```
U.S.S. TRUTTA (SS421)
"B" NARRATIVE

6 JUNE 1945 (Con't)

0500(T)
Barometer 28.02 - drop 4 points last hour. Seas are considerable, 40 to 50 foot ship, wind about at least 100 knots; visibility 50 to 100 yards. Air is much too humid; induction closed, rising 5 knots on con maintaining, taking situation turn running tower.

0550(X)
With the barometer at 27.91 and still falling, decided to save ourselves to 200 feet. Pulled to 200 feet, assigned to 200 feet. Rolled 10 degrees to starboard, turned into rolling up to where it was good coming toward the control room. Lot of work cut out.

1200(K)
Course Lt. 29-20-00, Long. 193-33-00E.

1330(K)
Came to periscope depth, was amazed to see a moderate surf. Wind still blowing 26, making slowly. The storm had a good center, but could not come to have been within 25 miles of its center. Set course for 180.

1500(K)
Luck was discovered and diminished. Inside of governor assembly was wiped down with alcohol. See Engineering C. M. for duties.

7 JUNE 1945
0300(K)
Arrived on life guard station and commenced steering various acoustic tones to wide side square round line around patrol.

1000(K)
Commenced shifting many B-29's, KOBE bound. Shifting to contact with survivor in the chard.

1115(R)
Encountered drifting with the pilot in up. Called away.

1130(K)
Fighter Gregory, who had been in small rubber dinghy in the surf, was picked up. He was very exhausted and in a slightly hypothermic state as a result of his ordeal. Chief Pharmacist's Mate too Officer Bourne, and secured careful treatment for long exposure.
```

— page 76 —
```
U.S.S. TRUTTA (SS421)

"B" NARRATIVE

7 JUNE 1945 (con't)
1200(K)  Post Lat 29-44-00N; Long 138-42-00E.
          Sighted hundreds of B-29's and fighters, southbound
          from KMD raid. No distress signals or messages
          received.

1300(K)  [UNCLEAR: best guess]

8 JUNE 1945
0100(K)  Pulled off to the westward and transmitted Trutta's
          first to CONSUBPAC giving information on rescue of
          Lieutenant BERT with bright details.
0940(E)  Sighted spar intership basing time. Went to Butilo
          Station, due action to test fire all guns, all guns
          sounded satisfactorily.
1023(K)  [UNCLEAR: best guess]
1030(K)  [UNCLEAR: best guess]
1200(K)  Post Lat 29-44-00N; Long 138-54-00E.
          Sighted and loaded equipment for report on SD
          and SURTAN. The expected our SD points out
          and SRTAN. This will probably work this equipment
          [UNCLEAR: best guess].
1515(K)  Last QUARTERS and set westerly course for tomorrow's
          [UNCLEAR: best guess].

9 JUNE 1945
On assigned life guard station for today's strike on OSK.
and MIYOKO.
0500(K)  SD Radar back in commission after six (6) days of
          hard work by EM.
1100(K)  [UNCLEAR: best guess], arrived and exchanged greetings
          with [UNCLEAR: best guess].
          Post Lat 29-52-00N; Long 138-25-00E.
1400(K)  [UNCLEAR: best guess] signals and messages received; screen clear.
          [UNCLEAR: best guess] received indicating strikes for "AM".
          [UNCLEAR: best guess] during the afternoon. Com-
          [UNCLEAR: best guess] and BFB to MPT during mid.

10 JUNE 1945
No assigned life guard station today, will move over to
```

— page 77 —
```
U.S.S. TRUTHT. (SS421)

"5"  W.R. RIVIE

10 JUNE 1945 (Cont'd)

0110(K)  Exchanged SJ recognition signals with friendly sub.
         Made quick dive and flushed out #3 & #4 BBT several
         times.

0820(K)  Made quick dive for training.

0842(K)  Surfaced.  Got course to starboard.

1055(K)  Sighted about thirty (30) miles bearing 105(°).

1100(K)  Sighted several P-boat's between 1100 and 1400.
         Boats lat. 30-00-00; Long. 140-19-00.

1236(K)  Got course for TORB MINS.  Plan to look over the
         island and at the same time to "perk" up the SD por-

1300(K)  Sighted TORB MINS thru a fine haze, bearing 010(°).

1500(K)  Commenced strong various courses to make a complete
         sweep around the island at a distance of 5-6 miles.
         Sighted several buildings and huts on water.
         The top of the volcano was visible as well.  The
         light yellowish discoloration.

1635(K)  Along vicinity could find and close to three (3)
         miles.  Sighted very populous fishing village,
         apparently going to General Santos.  Slightly a dis-
         tance from the village was a territory for higher
         tech and P.I.  Hilo was also sighted.  We were
         particularly looking for signs of activity.

1717(K)  Decided to hold better look close range, trying to
         work out subsistence for the area.

1736(K)  A range of 1800 yards would seem quite
         sufficient.  Four or five small craft would show
         up.  Could be fishing vessels.  The boats were
         about 300-400 feet above, going right on the
         surface.  The light was good, and the hulls
         could be distinguished easily.  The craft
         seemed to be fishing.  [HANDWRITTEN:  A new
         craft was sighted by CDR. W. R. RIVIE, it was
         quite interesting to see the small craft
         close together looked like an antique four-hull
         design.  The P-boat was very conspicuous but
         provided no unusual info.  The village was
         situated between two hills on the side of the slope.
```

— page 78 —
```
UBSSI TRUTH. (3421)
"S" R.L.P. 5

10 JUNE 1945 (Con't)

One possible seashlight covered by a tarpaulin was also seen in close proximity to several well concealed areas of dugouts from which people carried on and exited respectively. The signalman, also earlier on the surface, reported at what appeared to be a command post on the hillside with binoculars trained on the Turkoon which happened to be swimming pictures during period. Finding it true, he had seen all possible and had taken some good pictures, soundings pointing out to westward two-third spot.

2028(K)
Commenced studying various courses at various speeds outbound the Bondiz Log.

11 JUNE 1945

Again no regularly assigned life guard station. Will patrol in vicinity of the life guard lagoon line.

0215(K)
Completed tests on Bondiz's log; set course to westward outlining instruction concerning body's aid.

0510(K)
Noted in radar for correction, bearing 270(T).

0600(K)
Sighted friendly submarine thru periscope on starboard side.

0622(K)
Made quick dive for training.

0728(K)
Surfaced, set course to westward.

0735(K)
Purred away from possible periscope on port quarter; allowed to think for about fifty (50) miles, then turned to course 180(T).

0845(K)
Picked up M/R signal on 157 mc, 50 PRP, pulse width 8.0, sounded it in direction of JFR station.

1000(K)
Commenced to take soundings at various course to take depth.

1041(K)
Test Log: 32-32N, 117-52-20W.

1210(K)
Slight SOF 0.4, bearing 065(T), distance about 30 miles.

1300(K)
Made quick dive for training.

1430(K)
Surfaced, set course to westward.

1500(K)
Commenced sighting several friendly planes, illuminating.

1715(K)
Rank fluid in 20,000 surface. Point six (6) miles, bearing 206(T) from JOFU G.M.
- 6 -
```

— page 81 —
```
U.S.S. TRUTH (SS421)
"E" L E T T E R

16 JUNE 1945 (cont'd)
0100(1) SD contact 14 miles, opening out. No response on VHF.
0300(1) Took departure from MIHAKI for today's life guard station for fighter strike on KYUSHU.
0800(1) (2) assigned station for life guard duty.
0800(1) (2) house early on.
0830(1) Lead quick dive, to training. Sent to 500 feet to check for water-tightness and look for temperature gradient situation over. A few minor leaks around surfacing glass were eliminated.
0952(1) Surfaced and set proper radio watches for life guard duty.
1200(1) Post Lat. 30-09-09N; Long. 121-52-00E.
1330(1) Placed various activity over. Set course for southeast coast of KYUSHU to get in a couple of hours damaged sighting before dark. Squally weather continued with limited visibility.
1641(1) 1st class land marks bearing 285(°), distance about 15 miles.
1717(1) Sighted a mile off the beach and commenced closing toward MIHAKI, southeast tip of KYUSHU.
2001(1) Surfaced and opened out to 10 miles out. Then commenced working our way northward along coast toward SUGO JIDO, where we have been ordered to patrol with DEVILFISH.

17 JUNE 1945
Patrolling independently along east coast of KYUSHU, working northward to be in position to patrol assigned for SUGO JIDO during daylight.
0300(1) Plino flow obscured close by, unwrapped up on VHF as previously.
0055(1) (1) contact in the distance. No answer on VHF or surface.
0200(1) Attempted to establish rudder identity. Contact closed to 2 miles.
0115(1) surfaced at 6' depth. Contact incidentally opened up, but no visual. Set course to northward at one hour.
0300(1) Set depth at 300 feet. Established communications with the fleet and started search plan.
0330(1) That was an OKIDO nothing to the northward of us.
0500(1) submerged and commenced closing the opening to the
```

— page 82 —
U.S.S. TRUITA (SS421)
"B" NARRATIVE
17 JUNE 1945 (Con't)

western entrance to BUNGO SUIDO. Commenced patrolling
along a line 025-2050(T), 5 miles off FUKA SHIMA on
the 100 fathom curve.
Having tried in vain to raise the DEVILFISH, reasoned
that under the circumstances it would be logical for
us to take the western entrance as DEVILFISH was al-
ready on the east side working on a contact she had
reported earlier in the evening.
0945(I) Sighted thru the periscope the first honest-to-goodness
Jap plane of this patrol -- a BETTY, distance about
3 miles, course 200°(T), elevation 2 degrees. They
are few and far between these days.
1200(I) Posit Lat. 32-48-00N; Long 132-04-00E.
2010(I) Surfaced and commenced opening out from coast to charge
batteries before taking up nearby life guard station
for tomorrow's early morning raid.
Not even so much as a fishing vessel sighted all
day long during fifteen (15) hours of submergence.
2224(I) SD contact 3 miles. No answer on VHF after several
attempts. Couldn't be sure about this contact, so at
2225(I) made quick dive to radar depth to watch contact. Con-
tact stayed in vicinity for some time and then opened
out. Remained at 45 feet, studying situation.
2235(I) Several planes on SD. Figured that this must be some
of our friends coming over early, so at
2239(I) surfaced. Tried in vain to establish communication on
VHF with several contacts with no luck. One contact
closed rapidly; then at one (1) mile,
2240(I) made quick dive again to 40 feet to watch developments.
Three (3) contacts seem to be searching the area. Will
stay down for a spell just to be on the safe side.
2325(I) Came to 40 feet and listened on VHF. Still three (3)
contacts on SD. Heard BOXKITE 5, our air cover, call-
ing us on VHF. Established communications at 40
feet
2327(I) Surfaced and set course to westward. Commenced vec-
toring BOXKITE 5 toward us with combination of SD and
SJ ranges and bearings. Informed BOXKITE 5 that there
were three (3) contacts at about the same range. BOX-
KITE 5 answered up saying that he was being followed
by two (2) bogies.
After considerable maneuvering, BOXKITE 5 lost his
pursuers and finally established contact with us.

18 JUNE 1945

Patrolling on assigned life guard station just off BUNGO

- 10 -

— page 84 —
U.S.S. TRUTTA (SS421)

NARRATIVE

19 JUNE 1945

Surface patrolling off western entrance to BUNGO SUIDO.

0459(I) Made quick dive and commenced closing coast to patrol
        along 025-205°(T) line five (5) miles off the coast
        near FUKA SHIMA.
0740(I) Sighted floating mine thru periscope. Position:
        Lat. 32-40-00N; Long. 132-00-00E.
1025(I) Sighted BETTY thru periscope coming out of BUNGO SUIDO
        on a southerly course.
1200(I) Posit Lat. 32-40-00N; Long 132-01-00E.
2000(I) Surfaced and opened out from land a bit to charge
        batteries. Commenced surface patrol of western half
        of BUNGO SUIDO entrance. QUILLBACK patrolling eastern
        half.
2152(I) Sighted running lights of three planes low over the
        water, apparently closing. Made quick dive to radar
        depth. No SD contact or APR signals.
2210(I) Surfaced. All clear. Continued battery charge and
        surface patrol.
2317(I) SD contact 11 miles. Never regained again.
2329(I) SJ contact, bearing 120°(T), distance 13,000 yards.
        Strong 10 cm radar interference on this bearing. Be-
        lieve this is the QUILLBACK.
2333(I) Sighted a greenish colored flare in the direction of
        the SJ contact. Did not answer it as the correct re-
        cognition color is yellow. Watched contact carefully.
        Contact tracked on course 120°(T), speed 8 knots.
        SJ contact seems most likely that contact is QUILLBACK.
        To establish communications by SJ without success. Is
        this is the QUILLBACK's first run, she may not be too
        familiar with SJ recognition procedure. Let it go at
        that, figuring we could find out later in the evening by
        communicating with each other thru our BOXKITE cover
        via VHF. (Later learned thru VHF communications that
        QUILLBACK figured she had contact on us and that our
        contact was apparently her. Also later learned that
        QUILLBACK had a torpedo fired at her about five (5)
        hours after our supposedly mutual contact on each other
        while investigating area where she had seen two flares:
        On life guard station awaiting raid by our B-29's on
        nearby BUNGO SUIDO area industrial city.
2330(I) On life guard station awaiting raid by our B-29's on
        nearby BUNGO SUIDO area industrial city.
2350(I) Established VHF contact with BOXKITES 1 and 2, our air
        cover for tonight's raid.

20 JUNE 1945

On station just off entrance to BUNGO SUIDO performing life

- 12 -

— page 85 —
U.S.S. TRUTTA (SS421)

"B" NARRATIVE (Con't)

20 JUNE 1945 (Con't)
two (2) stick masts and funnel. Estimate that target
was a 1500 to 3000 ton coastal freighter, but from
the extreme range and small amount of target seen, a
valid appraisal cannot be made.
1200(I) Posit Lat. 32-42-00N; Long 132-12-00E.
2000(I) Surfaced and commenced opening out from coast
for night surface patrol. Remainder of afternoon had been un-
eventful.
2340(I) Weak SJ interference, bearing 110°(T).
2100(I) Received orders to proceed to Areas 9 and 12 and after sun-
set on 21 June 1945, and patrol there as directed by
TIRANTE.

21 JUNE 1945

Surface patrolling western entrance to BUNGO SUIDO, coordi-
nating patrol of entrance with QUILLECK who is watching eastern
entrance.

0052(I) SJ contact, bearing 120°(T), distance 8000 yards. Turn
ed away and commenced tracking. Believe this to be
QUILLECK. Again as strong SJ interference is present
on bearing of contact. Tried to communicate with SJ
with no success. Contact plotted on course of 100°(T),
speed 8 knots. Lost contact at 13,000 yards.
0452(I) Made quick dive and started for our favorite spot 4
miles off the beach bearing 110°(T) from FUKU SHIMA
island right in the middle of the western entrance to
the BUNGO in 75 fathoms of water.
1200(I) Posit Lat. 32-39-05N; Long 132-01-00E.
1735(I) Sighted unidentified aircraft to west in rays of setti
ng sun, headed south along KYUSHU coast, distance about
3 miles.
2000(I) Surfaced on all four (4) main engines and started work-
ing our way south enroute Area 9 for patrol in accor-
dance with STREET'S SWEEPERS plan.
2033(I) SD contact, 7 miles, closing. Made quick dive to radar
depth. Plane immediately opened out. No response on
VHF.
2042(I) Surfaced and resumed course to south at two (2) engine
speed.
2129(I) SD contact 14 miles. Identified as friendly on VHF.
2149(I) SD contact 6 miles, opening. No VHF answer.
2256(I) SD contact 11 miles. Gradually opened. APR signals
of NIP variety present indicating JAP airborne radar.
Turned into moon and slowed as moon was two nights from
being full. Plane lost from SD.

- 14 -

— page 86 —
USS TRUTTA (SS421)
"B" NARRATIVE

21 JUNE 1945 (Con't)
2329(I) SD contact 16 miles. Slowed and turned in to moon.
         Strong APR signal (200 mc, PRF 1000, pulse width 8-10).
2334(I) Plane closed to 6 miles. Made quick dive to radar
         depth. Plane closed to 3 miles, so ducked under
         100 feet just to be on the safe side in case he
         made sight contact in the bright moonlight.

22 JUNE 1945
Enroute BUNGO SUIDO area to AREA 9 for patrol with
SWEEPERS.

0025(I) Surfaced. All clear. Set course once again to south
         at two (2) engine speed.
0430(I) Changed course to eastward temporarily while transmit-
         ting TRUTTA's third message to COMSUBPAC acknowleding
         orders to patrol with STREET's SWEEPERS in Areas 9 & 12,
         and to proceed to KYUSHU.
0520(I) Sighted TANEGA SHIMA, large island due south of KYUSHU,
         bearing 290°(T), distance about thirty (30) miles.
0903(I) Sighted B-29, bearing 300°(T), distance 12 miles by
         SD, on a northerly course on apparent routine patrol.
0940(I) Sighted and talked over VHF with one (1) PBM plane on
         northerly course on normal search patrol.
1005(I) Sighted two (2) large patrol planes, bearing 190°(T),
         distance about 15 miles. Talked with them over VHF.
         They never did have us in sight.
1200(I) Posit Lat. 29-48-05N; Long 130-36-00E.
         This is approximately 20 miles due south of YAKU SHIMA
         in the NANSEI SHOTO chain.
1310(I) Put four (4) main engines on propulsion. Planned to trans-
         it COLNETT STRAIGHTS during daylight as it is misty
         and chances of being sighted from land on either side
         are negligible. Furthermore, not a single JAP
         plane has been seen all day during our cruising 20 miles off
         the coast of KYUSHU and islands to the south, so little
         trouble should be encountered from them.
1405(I) Turned away from what appeared to be a possible peri-
         scope on the starboard beam. The OOD spotted the object
         and turned away just to be on the safe side.
1545(I) Passed between YAKU SHIMA and KUCHINA SHIMA on the wes-
         tern side of TOKARA KAIKYO (Colnett Straights). Not a
         single plane, patrol boat, or anything else was seen in
         making this daylight passage of those straights (save
         the possible periscope). The islands on both sides were
         visible very dimly at times thru the varying mist and
         haze.
1630(I) Slowed to two (2) engine speed and continued onward to -

- 15 -

— page 87 —
```
U.S.S. TRUTHA (SSL 121)

"N" NARRATIVE

22 JUNE 1945 (Cont'd)

2045(1) ward area 90 (the part of area 90 north of lat 33°7.
     and 8 miles east head), characteristics: 2000, 1000
     RFI, pulse width 8.0, dip submarine radar. This sig-
     nal gradually increased but suddenly it was reduced
     out. So contact was made at city time during the
     time the signal was in attention.

2113(1) The contact was possibly the same plane we had
     before, so the pilot gave us no new design, and
     included "MURPHY" in the name. To our surprise,
     it was an aircraft, and we could see the contact
     on the VHF. To our surprise, it was a plane with
     over 100 knots, a 40 foot setting, trite. He had
     to go to the VHF.

2124(1) Surfaced and we seemed to north at three (3) signs
     and we could use to press between DAJNO GONTO and
     FURK.

23 JUNE 1945

Enroute RANGO SUIDO area to area 90 to patrol in accordance
with STBRS plan.

0100(1) 30 contact on DAJNO GONTO, bearing 290°(T), distance
     30 miles.

0345(1) Fast moving down between DAJNO GONTO and FURK SHIM.
     Visibility poor. Sea and wind slight. Visibility
     decreased with intermittent clouds or other
     weather conditions progressively.

0742(1)  Tacked area 90. Visibility has decreased to about
     1 mile due to heavy rain and fog. Started to dive
     and go down for three (3) hours work in the
     upper world. Found it difficult working in the
     submerged, but possible.

1013(1) Surfaced and a common surface patrol on one (1)
     mast. We would continue our way northward to ward
     RODINA STBRS.

1100(1) Surfaced on plans. Talked with friendly plane on
     point list, 33-18N, Long 128-12E.

1250(1)  SD contact 5 miles, 0 degrees. Stroke AIR JAP are sig-

1559(1) made quick dive to 100 feet. Stayed down a while to
     make sure the plane had a cleared course.

1600(1) In position continuing between RATH KLINW and HERBLO
     Thinks along the traffic line there. Zigzagging by Arm.
     Course Clock on various northward-southeast courses.

- 16 -
```

— page 88 —
```
U.S.S. TRITON (SS421)

26 JUNE 1945

Surface patrolling in area 90 just west of TSUSHIMA STRAITS along northwest-southeast traffic line.

0100(1)  Commenced closing the HIROSHIMA. Plan to purposely get conspicuously close to the beach and fire a torpedo at 5' in danger of CONFLICT.

0215(1)  Burns STENSON, GUN CONTROL.  Kanned only the 5".  Remainder 5 miles from the beach.  End crystal's ready to pump fire.

0239(1)  SD contact, 2 miles, close.  Clarified the decks as fast as possible.  All hands were told to "plug in" plan was to fire a missile.  This was put to the Control Room report that it was a good option to go to the surface and watch the situation.  Fire was missed, but it was my way of strictly opening fire.

0300(1)  [HANDWRITTEN: Command air in with radar and sounds and bearings located.  Counted on the beach, two (2) rounds over sand the beach with "drum" lobbed two (2) rounds over sand the beach with "drum" could not spot, but generally planned to fire three (3) rounds of 5", but three (3) rounds were backing up.  Consequently, figured five (5) to watch disposition of the rounds to be a good target.  Ended up to be a good target.  Ended up to be a good target.  Ended up to be a good target.]

0303(1)  [HANDWRITTEN: From BATTLE STATION (MS).  Ship's 1st Lt. Waugh and Patrol Officer, Cling to RASUL Distant.  Ended up to be a good target.  Distance to 16 miles.]

0510(1)  [HANDWRITTEN:  32-32-00;  Long 128-20;  distance about 18 miles.]

1200(1)  [HANDWRITTEN:  32-32-00;  Long 128-20;  distance about 18 miles.]

1400(1)  [HANDWRITTEN:  31 miles off the beach beneath full moon and surf traffic, off of RASUL Kaimai there.  No sighting of the moon.  Height overhead minimized the full brilliance of the moon.]

```

— page 89 —
```
Usisle. TRUTH. (M6421)

"E" R.E.L.A.T.I.V.E

24 JUNE 1945 (Cont'd)

2116(1) .AR cont'd, 158° 20', 500 PR, 2-3 his pause width. This
amplitude gradually increased in intensity until as
S. cont'd, bearing 110°(T), distance 10,450 yds. O.O.D.
reports that he did not barely make out object at
first bearing. Turned away (2) distances about 1000 yds.
first.

"Figure that those two contacts, b-m-s of the
size of which they were picked up as not being
secured by any craft will from height and
distance of the 2nd will be the best
indicator to write for it. 2nd, individuals
after stalking will be a 2nd.

310(2) spot, known as 1st, is 158° 20', PR 500,
bearing 2° (and normally to this will be
but 2°). 2nd, reports to be 1st, will be
but 2nd.

Battery charge, g-plotted, 130°(T), 68° 18', for over
an hour was running low. We review 12,000 yds ahead
and that was the way to see few 2,000 yds up ahead
and we are going to write for it.

[HANDWRITTEN: 2nd]
hole, going to 200 feet, depth bathythermographic
pictures of extreme conditions. 1° 15° negative gradient
at surface at 100 feet. Close to 40

- 18 -

25 JUNE 1945

Fulfilling in opportunity in arc 90, tracking ahead of two;
(2) PR vessels making good base course of 310°(T),
good 8.8.8.

0110(1)
Battery charge, g-plotted, 130°(T), 68° 18', for over
an hour was running low. We review 12,000 yds up ahead
and that was the way to see few 2,000 yds up ahead
and we are going to write for it.

0139(1)
```

— page 90 —
```
Unit:  TRUTHA (S6422)
"B"  HARE TIVE

25 JUNE 1945 (cont)

feet and attempted to pick up targets on S7, but with no success. Drifted to S8 and searched sector where target should be.

Was constructed and done down to about 8,000 yards, could see blurr the after periscope on a true bearing 20 degrees to the left of the corrected course. Bearing Range by S7 periscope 10,000 yds. Double checked to make certain this was not something new, and took normal approach course and changed to attend.

After careful setups, targets plotted on base course of about 000°(T), speed 8 knots, true bearing 095°. The situation looks mighty poor for getting an attack how much drift affects books this way. Continued to steer the normal course, a normal position course to the westward. This is the last while kept drifting this way. The ship was set to 7,100, heading 050°(T), likely to pick our own course and set to two ruddy.

Our old chart showed a sector two hundred and fifty degrees, and it was found to be a little more than that.

Just prior to this, sharp by daylight, to see while we had missed the mark. No use in trying to pick up targets and to utilize. I do not believe that they are looking for any of the enemy vessels.

The ship was picked up in the cold and the water was about 60° at the surface.

The course to get spread. Just before 1200, picked up the surface curve, the ship was in 10,950 yards. I distinctly remember that.

Prior vessels had any idea that we were in the area. In this regard, it was suggested to pick the warm time in for an attack.

- 19 -
```

— page 91 —
```
U.S.S. TRUTA (SS421)
"F" NARRATIVES

25 JUNE 1945 (Cont'd)

  4435(1) Slide of our two (2) targets to the northward in the breaking dawn, a distance about 8 miles. We still unable to pick them up. They appeared to be P.T. CHIGORO or private type vessels on a route to patrol.  7 WAGNE still headed northward and would make a submerged high stores, so decided that we would make a submerged high periscope patrol along the line of our targets during the day.
  Sighted TAHITI, Island, bearing 072(2), distance 25 miles.

  0510(1)
  0600(1)
  1040(1)
  Judged a dive and commenced patrol at 50 feet with
  1200(1)
  1201(1)
  1300(1)
  1400(1)
  2000(1)
  2047(1)
  2048(1)
  2100(1)
  2101(1)

26 JUNE 1945

  [HANDWRITTEN: Fortifying incompletely in area 9C along RELIEF LINE - TIRL - all traffic line.
  - 20 -
```

— page 92 —
```
U.S.S. TUTTLE (SS-42)
"B" NARRATIVE

26 JUNE 1945 (Cont'd)

00:30(I) Changed course to west to be in position by morning to patrol submerged or surfaced as conditions warrant off EKTU 70.
00:31(I) Ab on that 13 miles; talked with friendly plane over the system. He had no contacts to report.
05:00(I) Diving into heavy fog; 80% visibility.
05:30(I) 37° 00' N, bearing 280°(T), distance 14 miles.
06:01(I) 11:11, surfaced suddenly and left us in very plain sight of HUK, 10, 80.
06:07(I) HUK quickly and commenced submerged patrol with big prototype watch.
07:26(I) Got close to a fishing vessel; surfaced and began surface patrol.
07:41(I) Sighted land and sank drifting into 82.2. As sun fire.
08:00(I) Hostile track 35-55°N; line 127-00°E.
12:00(I) Rooted radio message from an indigo source plane stating that we could receive mail in the G. Turned to the north on the line and got course to look to the south.
18:30(I) 37° 00' N, 127° 00' E.
19:10(I) Slight wind; drifting near Satsuma; 50° 70.
19:30(I) Sighted land; closed in; ground to 30 ft. distance about 5 miles. Decided to go around 10°.
20:00(I) Low in favor of drifting. I looked in 37° 00' N, 80° 00' E as possible, and GUNNER not only blind away.
20:30(I) 37° 00' N, 127° 00' E.
21:45(I) Recorded 1st line.
22:00(I) A notice was sent to GUNNER brother by air raid, distance from the vessel. We could go through what we had as far as the stronger trail about the bubble's edge. Saw great full surface, and distributed as we could southward.
22:45(I) Concluded that we would rock in and out of western to pass between.
23:00(I) Entered area. Visibility cut to 100 yards.

27 JUNE 1945

Patrolling Amoy outer in area 12. Plan to patrol around the islands east of KOWLOON and to HONGKONG to class KORALY coast. Dense fog with visibility less than 200 yards.

0531(I) Made trial fire.
```

— page 93 —
```
U.S.S. TRUT H. (58421)
"5" L.R.L.TIVE

27 JUNE 1945 (Cont'd)

0553(I)  Surfaced and commenced patrol in fog on the auxiliary
         sentie. Commanded avoiding any fishing vessels.
1200(I)  (Coast L.  35-34-00N; Long 125-27-00E)
4241(I)  Closed on a vessel identified as 2035 tons and
         miscellaneous lines manned, wearing fishing vessel.
         Then the crew saw it, they commenced hailing in their
         native language. The vessel did not respond and
         continued on in a direct fishing course.
         [HANDWRITTEN: 1.  Decided to take action. 2.  2 men
         sent to board, two (2) officers made with
         weapons. 3.  The crew was ordered to stand by. 4.  The
         vessel was taken in tow to the nearest port. 5.  The
         crew was taken aboard and the vessel was searched for
         contraband. 6.  The vessel was released and
         ordered to proceed to port in the dry.]
2000(I)  [HANDWRITTEN: 1.  Group left for KOREA. 2.  1st
         surface patrol in South China Sea, KOREA coast.]

28 JUNE 1945

Patrolling indeterminately in area 12. off southwest coast of
KOREA, north of DAIKOKU-JIMA. Heavy fog with visibility zero.

1200(I)  (Posit L.  35-05-00N; Long 125-27-00E)
1410(I)  Sight of floating object. Bank lit with 20' of surface.
         (Posit L.  35-05-00N; Long 125-18-20E.)
1845(I)  Surfaced and gave to indicate radar patrol in fog.
1911(I)  Surfaced and continued surface radar patrol in fog.

29 JUNE 1945

Patrolling indeterminately in area 12. off southwest coast of
KOREA, north of DAIKOKU-JIMA. Weather still clear; heavy fog with
visibility varying between zero and 3000 to 4000 yards.

0700(I)  [HANDWRITTEN: 1.  Changed course to westward and commenced rounding D.I.
         (Posit L.  35-05-00N; Long 125-12-00E)]
1200(I)  (Posit L.  35-20-00N; Long 125-15-00E)
1500(I)  Received inquiries from friendly search plane that several
         aircraft were sighted during 100 miles northeast and
         in transit area. Set course for reported contact to close KOREA
         at 180° for operation.
1600(I)  3rd grade interference, bearing 260°(T).

22
```

— page 95 —
```
U.S.S. TRUTA (SS421)
"HP" NARRATIVE

1: LATE 1944 (Cont'd)

124(5)
eight (8) of them now.
The closest targets at 10,000 yards by 31, went to Little Sitkin, C. AUSTIN. The situation now ties up Little Sitkin. There are both seven (7) time and four (4) masked buoys, all of certain sensory types, in sight shared in water varying in depth from 10 to 15 fathoms. There are many more to consider later, but we will leave those for much later in order to get it in order. (7) vessels are so close to one another that they will leave to water when the submarine is in sight before they escape into the shallow water. (15) miles distant to the nearest land is written (15) miles distant to the nearest land and this is the only vessel that is truly out of the water. (8) failures at a point against seven (7) miles off the coast, or in fact, to work in a very shallow water.

1308(1)
With all sightings made, I overlooked the other vessels with a zero angle one hour, looked into our serial and to any defensive equipment, moving in to 100 yards to open fire.
Concerning the time at five (5), at 2000 yards, took the first reach of gunfire and fired a shot. Took range most of the time in life. Initially, the first shot was blasted (here) [UNCLEAR: 3] but noting that ship's stern was the water line, I let certain things good to state the other targets were already missed.

Attacked and completely destroyed five (5) of those with no more than 200 yards the angle. Right you see the sunk (10) of 15 yards of the actual sink. (11) in the 15 yards of the actual sink. (12) low of before could do it to see. Both loaded down and the 15 yards of the actual sink. The vessel would hull, thus it is practically hinged to continue to sink. History, this ship is a total of 200 yards in the water, this ship is a total of 200 yards in the water. In each case, this ship is a total of 200 yards.

[HANDWRITTEN: You just found to board on the first fire (5) when another four master vessels turn to the list astern to starboard. This vessel was all alone and had apparent.
```

— page 96 —
```
UBIS, TRUTTA (SS-421)

NARRATIVE

1 JULY 1946 (Cont'd)

Five (5) of the vessels destroyed were four (4) masters
two (2) were three (3) masters. The same in their design
and construction. All used a flat bottom bow and a flat
stern with a life boat ring. Interspersing over this
were living spaces consisting of two (2) or more hold
units. The cargo spaces consisting of two (2) 10 ft. hold
will restrict between houses to be ten feet.

All of these vessels were made to work in order to destroy
the enemy. It was believed that they could be used for
warfare such as had been done before. It appears that
the vessels were not able to be utilized for this
purpose. The following sequence fired 50 rounds of 5" 300
pounders at 1,200 rounds of 20mm and 250 rounds of
.50 caliber.

1733(I)
Sound drive.
Searched and set course 8° in southwest on one unit.

1751(I)
Set course to northward 010° ed. or are to be posi-
tion to other area 125 knots.

1959(I)

2 JULY 1946

Patrolling independently in area 12° off west coast of KOREA
in vicinity of entrance to ENJIN; heading not into area 12° for
patrol today off CHOSEN KAI.

0030(I)
Batteries are 122%.

0600(I)
In and around patrol 10 miles off CHICHAI KAN weather
clear; wind moderate between that point and Daitou, Man-
churia, and HAINAN PROVINCE; visibility limited to
6,000 yards. The course of patrol was established. During
this time, during the 1956 ship convoy was reported by both
looking to the east and west.

1200(I)
Detected lat. 37°-22'N; long. 124°-27'E.

1420(I)
Bearing 000°(T), distance 6000 yards.

Color illustration: discoloration that fell was
sight had been customized recently and the hulls
```

— page 97 —
```
U.S.S. PATERA (58421)
"E" MARPATTE
2 JULY 1945 (Cont'd)

were all still infested with water up to the gunwales.
Figured it is the handy work of the "Martha" who has
recently reported having boarded seven (7) large schooners in this area.

1505(I) Sighted four (4) unidentified aircraft in formation,
bearing 200° (T) distance about 10 miles on our easterly
course.

1621(I) Turned about and headed back down coast toward CIGOSAN.

1844(I) Sighted submarine on horizon, thru high periscope,
bearing 150° (T) distance about ten (10) miles, sent
signal on two (2) main engines to close abeam.
Looked ludicrously the silhouette of one of ours.
Looked like a freighter which was wadded up.

1857(I) Exchanged recognition signals with U.S.S.
Concord. Combined with prevailing situation around
CIGOSAN. Had to reduce speed to 10 knots.

1900(I) Formed a circle to see if we could find my
missing wreckage, the results of this action
carry in the fog yesterday, the results of the
survey were too foggy at this time. Aimed 180°
for the next course and bid our goodbye as she set course
to the east.

1935(I) Set course 245°(T) to patrol along the CIGOSAN
SHIPPING PROHIBITORY twelve lane tonite.

2 JULY 1945
Patrolling independently in Area 122 along the CIGOSAN KAT
SHIPPING PROHIBITORY twelve lane. Heading toward CIGOSAN for
close in patrol other surface or submerged craft.

04:59(I) Made quick dive using (5) miles off CIGOSAN in a 14
foot, still close beach to scout the (2) (1) (1)
pointed out.

08:21(I) Surfaced and made (1) sighting of the CIGOSAN KAT
main occur. It seemed to be (1) (1) (1) distance.

08:47(I) Surfaced and made (1) sighting of the CIGOSAN KAT
main occur. It seemed to be (1) (1) (1) distance.

During the morning sights and sights, pulled
the water, pulled on board and examined it. The
```

— page 98 —
```
Disti Si HEUTA (S.321)

"THE NARRATIVE"

3 JULY 1945 (Con't)
wooden enclosed water-tight tin contained powdered
"AMMO" and was plainly labeled "AMMO PROD. FACTOR"
"EST." stamped on its side. They were found floating
in the water and the crew did not realize the
danger until the wreckers were done with their
work. A five ship convoy sunk in this very spot
the same day.

1200(I)
Posit Lat. 38-00-00N; Long. 121-35-00E.
Patrolled the remainder of the day and night in the
same spot.

4 JULY 1945
Patrolling independently in Area 12E 5 to 10 miles off the
west coast of KOREA across the entrance to the channel between
CHODOCK ANCHOR and ANJOU. Heavy fog with visibility varying
between 100 and 1000 yards. Patrolled all day on the surface
in dense fog.

1200(I)
Posit Lat. 33-10-00N; Long. 121-31-00E. Many small
craft were sighted and identified as fishing craft; no
worthwhile contacts.

1730(I)
The project celebrated 4th of July turkey dinner with all
the trimmings plus a movie to top off the day.

5 JULY 1945
Patrolling independently in Area 12E between five (5) and ten
(10) miles off the west coast of KOREA across the entrance to
channel south of CHODOCK. Still fogbound with extremely limited
visibility.

0300(I)
Received TWENTY's message to fill SHUTT's 3 areas
locating and directing for us to establish close
contact with our fleet patrol in two (2) miles of
our position.

0530(I)
Posit Lat. 38-00-00N; Long. 121-29-00E.
Found craft diverging to the southward. Counted two
small fishing boats and one large liner. Could not
determine if they were friendly or hostile.
Clear weather had prevented us to have but a serious
- 28 -
```

— page 99 —
```
U.S.S. TRUTTA (SS421)

"J" LEAVING

7 JULY 1945 (Cont'd)
L440(I) Flooding of conning tower.
Surfaced and commenced surface patrol 5 - 7 miles off
coast East of the 106 head and set in, visibility 100-200
yards. Remainder of day uneventful.

6 JULY 1945
Patrolling independently in Area 12B, 5-6 miles off CLONAN
DA, KOREA.

0500(I) At the light for observing the nearby land, commenced
daylight surface patrol close in off OXON.
(Foot Lat. 37-52-007; Long. 124-32-003).
1200(I) Rose gradually disappeared leaving a fine haze; visibility
about 6 miles.
1320(H) Sighted two (2) SMITH T. fighter planes, bearing 290(°)
distant our (2) miles, elevation 3 degrees, so time
observed from easterly course, and decided to
turn into the wind. Course and speed were 1.6 knots
with excellent accounts. Kept vessel in line,
and we were able to look downwards.
1411(I) Sighted another aircraft D. T. 10, course moved
slowly to outboard, and in the meantime, so
striking at channel, also G. T. thirty-five (35) miles to
two restaurant.
1800(I) Patrolling across South, entrance to G. T. 10.
1806(I) At about 57 real rates bearing 105(°), distance about
fifteen (15) miles. Sounded closer for investigation
and finally made out what was to be two fishing
vessels. One was a large 2-1 vessel. Looks like we were out this time,
and it was a good time to review our position.
2005(I) Into the fishing area, and observed a large
vessel, and it was a good time to review our position.
2030(I) Course 215(°) with 40 knots at 5 knots. First
examined (2) fishing vessels, and at 1500 yards
we tried to block the main fishing. Started a sharp
turn to the left to watch results.
```

— page 100 —
```
U.S.S. TROUT (SS-421)

"N"  R.E. RIVER

6 JULY 1945 (Cont'd)

rapidly and by the time the turn was completed, the
sank stern first. Closed the three (3) hour (h) armed
submersible, and went to see each other. (3) Vise
there (3) minutes under the surface at a range of 500
yards, scored three (3) devastating hits on an 88 mm
gun. Two (2) targeted with fifteen (15) minutes,
well. Two (2) targeted with water up to the gun
exceeded eight rounds of 5 inch, routed to the
number of 202. All four (4) guns were destroyed.
Sunk or 204. The red torpedoes all measured 15
feet in length and similar in this report.
Section is toward four (4) A.M. directed
out from the southward. Also, certain islands
to be back off Oahu by morning for patrol.

2055(1)

7 JULY 1945

Patrolling independently in area 125 off western coast of
KOA-3 in vicinity of Oahu, HI.

0442(I)  made quick dive and commenced patrol off CHOOS KAI,
distance 35-30-00N; Long 124-35-00E.
1200(I)  Rose lat 18-08-00N and began surface patrol. Many
surfaced in what was listed during the day.
small fishing vessels sighted during the day.

8 JULY 1945

Patrolling independently in area 125 off CHOOS KAI, Distance
5-10 miles.

0020(I)  Exchanged recognition signal with T-BOC. She is
patrolling to the west of us.
0457(I)  made quick dive and commenced patrol. For clos
indicate, (unclear) 5-10 miles.
1200(I)  Surfaced.
1235(1)  (5) joint.
1350(I)  (5) joint.
made quick dive, continuing surfaced patrol, having
laid course to distance of five (5) miles in
closed Oahu.

- 30 -
```

— page 101 —
```
[STAMP: U.S.S. TRUTA (SS-421)]
[STAMP: 8 JULY 1945 (Cont’d)]

haz e.
During the effection, many four (4) masted schooners came down from the north anchored to rest near or CHOSEN in the river mouth, in depth from four (4) to fifteen (15) fathoms between one (1) and three (3) miles off the beach. The depth was 1800 (1) at least at some, but vessels had anchored, because of the terrific current, these vessels were to wait for the tide in order to get around the point it is closest. Consequently, since the tide was flooding northward. Later, they were anchored to await a favorable southerly ebb tide. Immediately after a little pressure rose at the surface, I noticed on Saturday the surface just at sunset and moonrise, off as many schooners as possible became danty.

1832(1)
“Look for at least ten (10) contacts with siren’s and torpedo. You will have to cross over to get into this channel, (H.O.)”

2005(1)
“Put out the range to the horizon, best course for (1) main engine, and from the field, best course for (2) auxiliary engine, and from the field, best course for (3) surface. Rigidly, I would like to have a good plot of the area, and I would like to have a good plot of

— page 102 —
```
U.S.S. T. U. T. A. (S. B. 421)

"B" NARRATIVE

8 JULY 1945 (Con't)

2040(I)  Destroyed this target with three (3) more decimating hits in the after part of the ship HER water line from 50 yards. Made the first strike to the left and from 50 yards made the second hit in order to get close enough to the trainable two (2) torpedoes to fire. The third strike was made in the same position as the first. The vessel hit with three (3) rounds of water. 10 yards of the vessel can still be seen at 500 yards in the clear water.

2100(I)  Patrolling with train (3) 5" batteries at first isolated scout with radar and used to fire and final vessel, settling rapidly and used to fifth and final vessel.

2110(I)  It was so poor that we had to light the target with a fire in order that 5" points and turrets could see the target. The 3" batteries hits in the last target completely destroyed, so that we did not have to fire on her again.

2115(I)  Departed from (1) school into deeper water, 5' (sounded 17') original average 12' (set in line) found, and made sounds of out of the circumstances.  Will not extend 1 rounds of 5" was course on. Ammunition will not extend 1 rounds of 5".

2125(I)  Crossed ten (10) fathoms school into deeper water, 5' course to west to patrol off OT03.  Had during night.

9 JULY 1945
Patrolling independently in Area 12E off CHOGAN BAY, dis- tances 10-15 miles.

5031(I)  Made quick dive six (6) miles off CHOGAN BAY and com- pleted submerged patrol of remaining subs, running at 285' (2), discharging school friendly allies during.

0902(I)  At 0900, surfaced to 18 on course for sub. Line and shell fire was seen, not at that time that was made.  At 0900, not at that time.

0930(I)  At 0930, surfaced to 18 on course for sub. Line and shell fire was seen, not at that time that was made.  At 0900, not at that time.

0935(I)  [UNCLEAR: best guess]
```

— page 103 —
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U.S.S. TUNNY (SS-282)

9 JULY 1945 (Cont'd)

0955(I) marine presented a 180 angle on bow to the sinking recognition impossible.
       searched and connected overtaking submarines on four (4) and five. Finally obtained recognition signal on SWIFT.  JAMESON had originally come over this way to here a "hook-sound" for the submarine and had added to the contact.
1040(I) Turned around and headed back toward CHOJAN KAI.  Then at 1128(I) the contact was confirmed, and proceeded to investigate.  Just like 15, 3, 2, 1, and 1, we were in the area of easy fishing.
1200(I) Action list:  1.  Use caution on every fishing vessel encountered.  2.  Make sure we completely understand the fishing vessel's intent.  3.  Noticed that someone floated on the five (5) knot tidal surfaced and commenced night surface-patrol.
2010(I)

10 JULY 1945
Patrolling independently in Area 12 off entrance to CHOJAN KAI.

0000(I) Heavy rain setting in; barometer noted falling 2-4 points an hour.
0531(I) Made quick dive.  Commenced close in patrol off CHOJAN KAI.
0920(I) Surface patrol.  Resource still failing to rate of 1-2 knots with visibility about one (1) mile.  Began looking for targets.  Resource still failing to rate of 1-2 knots with visibility about one (1) mile.
1200(I)  [UNCLEAR: best guess]  33-10N  125-32-00E.
1800(I)  Began marking our way southward along KOREAN coast in location yellow.  Also noted a 28.51; location yellow also noted at its height.

11 JULY 1945
Patrolling independently in Area 122, working our way toward southern edge of area via LORAN route.

1118(I) Made quick dive to trail ship.
1130(I)  Surfaced, continued sounding.
1215(I)  Found latitude 33-00N long 127-37-00E.
```

— page 104 —
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U.S.S. TRUTHA (S421)
THE LOG - N.T.S.

11 JULY 1946 (Cont'd)

1515(I)
STUDIO.
Passed ELIM TO light shore to port, distance six (6) miles.  Sighted lighthouse with two (2) radio or radar towers.  Proceeded to RELIEVING POINT.

1815(I)
Passed CON TO LIGHTHOUSE to two (2) side (10) miles.  Large white lighthouse and two (2) red towers.  Sighted building at 12-38N, 125-03E.

1900(I)
Adjusted course to 180° T.  Lost visual contact.

2200(I)
Left as per plan.

Patrolling independently, Laze 9, proceeding toward MALTO toward southern sector of area.

0250(I)
SD contact 7 miles, closing.  No sign on VHF.

0256(I)
Made quick dive to read contacts and plotted plane to by.

0301(I)
Passed and continuing on course 180°.

0360(I)
[UNCLEAR: best guess] surface in early morning twilight.

0600(I)
Surfaced 180° distance for (4) miles, on parallel.  Reported 12-38N, 125-03E.  Remained determined visual range.

1200(I)
Report 7-1/2 miles long.

1515(I)
Contact Zulu 6, plane closed to 5 miles and continued on.  Took a surface and not a good visual.

1539(I)
[UNCLEAR: best guess] and directed to CUB in accordance with CDR.

1800(I)
Contact Zulu 6, closed with TRUTHA toward and bent on your (4) miles.  Ran radio contact with surface.

1900(I)
Lost visual contact with TRUTHA toward and bent on your (4) miles.  Ran radio contact with surface.

2045(I)
Completed transit or pass; set course 090°(2) on two main designs.

13 JULY 1946
Route Areas 9 and 12 for GULF.

0000(I)
Set ship's clocks ahead one (1) hour to this time zone.

0130(I)
Transmitted TRUTHA's fourth assess to CO.SUBEC.  Conducted and talked over VHF with several friendly planes.

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```

— page 105 —
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U.S.S. TRUTHA (SS321)

18 JUNE 1945

Enroute Areas 9 and 12 to GL.
0111(K)  SF scuttled on BLDG, bearing 1850(T), distance 500 yards; sounded diving, detailed with PADDLE over viz.
0520(K)  Took station on BDSG; beaconed recognition signals;
          sighted escort for JFL, HURON, CUD.
0900(K)  Loosened Guai for refit
```

— page 106 —
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U.S.S. TRUTTA (SS421)
"E" NARRATIVE

13 JULY 1945 (Cont'd)
1200(1) Posit Lat. 29-28-00N; Long 133-30-00E.
Made two (2) dives for trimming in afternoon. Talked w/
several friendly planes on VHF.

14 JULY 1945
Enroute areas 9 and 12 to GUAM. Contacted and talked with nu
arou friendly planes on VHF. Made train dive in morning.

1200(1) Posit Lat. 29-20-00N; Long 139-00-00E.
Made one (1) training dive in afternoon. Commenced
equalizing battery charges during night.

15 JULY 1945
Enroute areas 9 and 12 to GUAM. Completed equalizing battery
charges. Made three (3) training dives in morning. A/C 2nd
bearing, 075°(M), distance 6 miles, on southerly course, also
continued.

1200(1) Posit Lat. 29-12-00N; Long 139-15-00E.
Made four (4) training dives in afternoon. Commenced
second equalizing charges during night.

16 JULY 1945
Enroute areas 9 and 12 to GUAM. Completed equalizing battery
charges. Made three (3) training dives in morning.

1200(1) Posit Lat. 15-00-00N; Long 140-30-00E.
Made four (4) training dives in afternoon. Went to 500
feet for one (1) dive. Conducted very low visibility
exercise. Discovered sound output to be unusually high
level, but no sound equipment was in use.

17 JULY 1945
Enroute areas 9 and 12 to GUAM. Sighted and exchanged calls
with PADDLE claim. Made two (2) training dives. Held thorough
Field Day for most of day.

1200(1) Posit Lat. 17-08-00N; Long 145-05-00E.
Made careful inspection of ship in afternoon. Sighted
and talked on VHF with the usual number of friendly tid
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```

— page 107 —
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U.S.S. RUTBA (S8421)

"C"

WEATHER

The weather encountered by this patrol was coincident with that expected at this time of the year in the area patrolled, with a few exceptions as mentioned noted. While on life, dated day 6 of June 1945, in the vicinity of lat. 29° 10', long. 125° 20', a storm was noted of typhoon conditions experienced. This storm moved very rapidly, however, and dissipated before rapidly filling occurred, beginning about 2000(1) 5 June, early in the evening, and increasing in intensity until 0400(2) 6 June, when the barometer reading was very close, and was noted in fury and were too small. The velocity of the wind approaching the estimated 100 miles per hour, with rain and spray being driven in like bullets. Finally, it darkened with a barometer reading of 27.91, which resulted in the station out at 200 feet, where the ship rolled as much as ten (10) degrees.

Other weather encountered included five (5) days of persistent and heavy fog during the latter part of June in visibility of only six (6) days in the vicinity of the possible. The conditions was lowered considerably. Also, while patrolling in close to Colorado, the weather for the period was noted to make from nine (9) to twelve (12) hours of visibility. In this area, six (6) of the days were characterized by light rain during the entire day. The remaining days in the area, twelve (12) days were characterized by medium to heavy fog throughout the entire day.

"D"

TIDAL INFORMATION

No unusual or extraordinary tides or currents were encountered. It is worth noting that the currents in the northern part of the area, 1.5 knots, were very close to the normal. In the southern part, the currents were noted to be 3 (3) knots. The directions with the tides were all of the same. In addition, STRAIGHT currents of approximately 2.5 knots were noted in the local areas shown on the tide charts.

"E"

NAVIGATIONAL AIDS

The only navigational aids encountered were eight light houses as listed below. All stations appeared to be
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— page 108 —
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U.S.S. TRUTA. (58421)

"T" NAVIGATIONAL AIDS.

well constructed, white buildings with a light cupola and radio towers or radar antennas. None were seen in the vicinity of the island of TUGUEGARAO. These are all shown on C. O. charts.

Lighthouse  |  No.  |  Lat.  |  Long.
|-------||
             |  1    |  27° 07'  |  124° 05' E
             |  2    |  36° 30'  |  125° 05' E
             |  3    |  36° 30'  |  125° 05' E
             |  4    |  36° 30'  |  125° 05' E
             |  5    |  36° 30'  |  125° 05' E
             |  6    |  36° 30'  |  125° 05' E
             |  7    |  36° 30'  |  125° 05' E
             |  8    |  36° 30'  |  125° 05' E
             |  9    |  36° 30'  |  125° 05' E
             |  10   |  36° 30'  |  125° 05' E
             |  11   |  36° 30'  |  125° 05' E
             |  12   |  36° 30'  |  125° 05' E
             |  13   |  36° 30'  |  125° 05' E
             |  14   |  36° 30'  |  125° 05' E
             |  15   |  36° 30'  |  125° 05' E
             |  16   |  36° 30'  |  125° 05' E
             |  17   |  36° 30'  |  125° 05' E
             |  18   |  36° 30'  |  125° 05' E
             |  19   |  36° 30'  |  125° 05' E
             |  20   |  36° 30'  |  125° 05' E

We were fortunate enough to board several enemy small craft and capture their charts. Some of these charts are recent, being stamped as corrected to July 1944. In comparing these with the ones we carry aboard to navigate the islands, we have both noted. These enemy charts are shown in detail so we used the, along with our own, to patrol the area.

The navigator also noted that in the vicinity of Cagayan, far in the northern part of the Yilulu, Soundings sometimes ran two (2) to four (4) fathoms shallower than shown on our charts, possibly due to the fact that long line cost since these rocks were charted.

The greatest single navigational aid in these fog-bound stress has been the radar. Having precision instruments would have been invaluable to have provided that they were as thick, close in as island emerged and solid coast line characterized. We were also able to verify varying depths and other navigational aids.

[STAMP: U.S. NAVY]
```

— page 109 —
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U.S.S. TANG (SS-306)

SHIP COORDINATES
NO.  |  TITLE & LATITUDE & TYPE  |  DIALING  |  ESTIMATED  |  HOW COMPUTED  |  Remarks
     |  LONGITUDE  |  TIME  |  SPEED  |  DISTANCE  |  BEARING
     |  (1)       |  (2)   |  (3)    |  (4)       |  (5)

1.  1000(I)  32° 60' N  126° 00' E  1 PF,  11,000  240°  8 knots  55 feet
20 JULY  1945  2  yards  8 knots  periscope at
                                                      east side of Dango
                                                      Sub to beyond restricted
                                                      area.

2.  2100(I)  33° 35' N  126° 16' E  2 Pots  10,200  310°  15 knots  Surfaced
20 JULY  1945  6  yards  15 knots  ** A. A. & radar
                                                      anti-submarine sweep,
                                                      have ended for attack
                                                      but targets claimed
                                                      base courses.

3.  1200(I)  33° 48' N  126° 46' E  1YF  15,000  000°  15 knots  50 feet
25 JULY  1945  5  yards  15 knots  periscope
                                                      unable to close for
                                                      distance from track.

4.  1300(I)  33° 49' N  126° 53' E  1SD  18,000  120°  8 knots  Surfaced
26 JULY  1945  5  yards  8 knots  let him proceed trying
                                                      to conduct survey reported
                                                      by plane.

[HANDWRITTEN: jc re of miscellaneous fishing vessels and large cargo carrying three (3) and four (4) adjust ecometers were sighted close inshore along KOREAN coast between latitudes 38° 00' and 39° 00' north.]
```

— page 110 —
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U.S.S. HUNT. (58-21)

"C"
AIRCRAFT CONTACTS

The amazing, most conspicuous scarcity of J.P. planes encountered on this run is the reverse of this report on aircraft activities. Just one single event (there was eleven (11) days in which we engaged in life patrols, hundreds of sorties and 1,012 flight hours) has been during raids over the Empire. Several J.P. planes have been seen during routine search patrols. One or two were a pair of fighters.

Two (2) ENEMY planes were assisted this periscope while on patrol off BUNGO SUITO. Likewise, several SD contacts were made, but no additional planes in the area. In this case, however, there was no indication that we noticed; we usually dived to radar depth when undesired contacts were within chief (8) miles.

In the South China Sea, we averaged one (1) dive a night from night flying IP patrol planes during four (4) days in the area. Those were equipped with radar but were inefficient. J.P. planes were seen under 50 degrees during J.P. planes as "A" and one was observed subsequent to radar depths as "B".

We were not furnished adequate cover from E.B. Search plans eight (8) days while in this area.

So many planes were encountered during the patrol (12) out of sixteen (16) flying J.P. planes in this area. A total of eight (8) enemy planes were sighted during the patrol, (4) reasonable aircraft in the area. (10) (2) planes were in the area. (10) (4) (2) planes were in the area. (10) (6) (1) unidentified planes in transit northward location (1). Unidentified planes in transit were noted. It is noted that J.P. planes were seen to be in the area. (7) J.P. planes were observed to be in the area. (8) J.P. planes were observed to be in the area. (9) Noted: Only friendly planes were encountered in this area.

On all 50 occasions, VFP was incidentally engaged in and in many patrols, friendly planes answered our inquiries for information. This provided most satisfactory results. This method of identification is essential, and simply, it saves time. Any dive in case works the SD contact is not so readily due to fog or limited visibility.

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— page 111 —
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U.S.S. TRUANT. (SS-421)

"TH"
CINCPAC D.R.

CUNS ACTION No. 1

TIME - 1300(I); DATE: 1 July, Lat. 36° 30' N
Long. 125° 30' E

TARGET DATA - DAMAGE INFLICTED

SUNK: seven (7) large and one (1) small Seconding Trading Schooners.

TONAGE: Estimated average - 200 to 100 tons for the large schooners, and 50 to 100 tons for the small schooners - average length of the large schooners was 150 feet.

DAMAGE SUSTAINED BY: Visual means, several of the schooners were seen to sink, or capsize; the eighth was left burning from stem to stern, sinking slowly.

METHOD OF ACTION:

The 5"/25 caliber, LONG and 20 and two .50 caliber guns were used during the entire action.

The first target was attacked at an initial range of 1100 yards. The third and fourth 5"/25 cal. runs were direct hits setting the target on fire. She was seen to our size and sink a few minutes later.

The second target was attacked at an initial range of 1000 yards. The 5"/25 cal. hits were scored with numerous 40:1 and .50 caliber hits. This target was left sinking after.

The third target was attacked at an initial range of 800 yards. After a couple of rounds by the 5"/25 cal., the range was increased to 1200 yards and two 5"/25 cal. were scored leaving the target sinking.

It was decided to close the fourth target for an opening range of 500 yards. Pursuant to this, the target was scored plus the 5"/25 cal. hits which also left it sinking.

Targets were shifted with an opening range of 1300 yards on the fifth target. Pursuant to this, the target was closed to 1000 yards. Pursuant to this, the guns and the target shifted.

Upon observation the third and fourth targets were seen to still afloat, with a small flare masted schooner alongside the fifth target. It was decided to close the fourth
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```

— page 112 —
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U.S.S. PATRICK (SS421)

"THE ATTACK DATA"

Target began and finish it off. The A.M. 2030 and the two
.50 cal. guns opened up at a range of 600 yards astern.
Upon opening fire, it was the third target, the only one re-
maining alive, was observed to drink.

Two more schooners were sighted on the horizon. After
boarding, these two were opened and gun attacks dim-
ilar to those outlined above were made. The seventh target
sank rapidly, the eighth, was left in flames and sinking
slowly.

                            AMOUNT OF AMMUNITION
                                GUN
                            No. of Rounds
                            5"/25          60
                            .50 cal.       300
                            20mm          1200
                            2.5 cal.      250

                            QUARTER NO. 2

TIME - 2030(I); DATE: 6 July; Lat.  37° 37' N
          125° 03' E

                            PAPER DATA - DAMAGE INFLICTED

SHIPS: One small Jeconis, two and three large schooners,
        trading schooners.

TONNAGE: The estimated 50 tons; Schooners estimated 200 to
        1,500 tons each. Length of two, 70 feet; schooners
        150 feet.

DAMAGE DETECTED: By visual means. The two and two schooners
        that were to sink, two, third schooner was left
        burning and sinking.

                            LIST OF GUNS
                            The 5"/25 cal. and the .50 cal. were used during
                            the entire segment.

The first target, the tug, was attacked at an initial
range of 1500 yards with the 5"/25 cal. gun. The first two
torpedoes missed, only the third hit. We hurried round in
the target squadron, it was the third. However, as soon as
the 5"/25 cal. gun was hit, we bear on the target, several rounds
- 41
```

— page 113 —
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U.S.S. TENTH (SS-421)

"ATTACK DATA"

were fired by that gun with several hits inflicted. The target sank stern first three (3) minutes after opening fire.

The third schooners, now grouped together, were attacked at an initial range of 500 yards. The 40MM gun opened fire, firing into the hull and deck of the second ship. 5"/25, as well as the second fire, followed shortly by the 20MM.

Fire was suspended temporarily to observe damage inflicted and clear the smoke to identify. Two of the schooners were sinking, capsizing and beginning to sink. The third had its hull pierced in several places, but was riding high in the water. This vessel was seen taken under fire, until she was soon to be settling rapidly.

Fire was resumed five (5) minutes after opening fire on the schooners, and ten (10) minutes after opening fire initially.

AMMUNITION EXPENDED

| GUN      | No. of ROUNDS | TYPE          |
||||
| 5"/25    | 14            | H.E.          |
| 40MM     | 34            | H.E.          |
| 20MM     | 360           | H.E.          |

CUM ATTACK NO. 2

TITLE - 2020(I); DATE 8 July; Lat. 38° 11' N.  Long. 124° 41' E.

TARGET DATA - DAMAGE REPORTED

SUNK: Five (5) large Scowling Trading Schooners completely destroyed.

TONNAGE: Estimated 200 to 400 tons. Average length - 125 feet.

DAMAGE DESCRIPTION: By Visual means. Three hits were scored by two 5"/25, gun in each target leaving them completely destroyed.

- 42 -
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— page 114 —
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U.S.S. TRUTT. (SS421)

"THE ATTAK DILL"

DETAIL OF JOTTE:
The 5"/25 cal. and 40mm guns were used for this gun attack. Radar ranges were used and spotting was done from the bridge.

Targets were attacked at an average range of 400 yards. Seventeen rounds of 5"/25 cal. were fired for 15 hits on three (3) of each target. Five (5) 40mm was also used on the last target scoring several hits, setting her on fire.

AMMUNITION EXPENDED
| GUN     | NO. OF ROUNDS | TYPE   |
||||
| 5"/25   | 17            | H.C.   |
| 40mm    | 8             | HEATED & RESTED |

"I" LINES
The following individual floating mines were sighted on this patrol:

| DATE      | POSITION                | TYPE | REMARKS                       |
|||------||
| 14 JUN '45| Lat 20°38'N Long 139°48'E| Earn Sunk by 20MM Gun fire. |
| 18 JUN '45| Lat 20°34'N Long 132°03'E| Sited at morn. Sited near the bend. |
| 18 JUN '45| Lat 20°32'35"N Long 132°01'12"E| Sited at morn. Sited near the bend. |
| 19 JUN '45| Lat 20°32'41"N Long 132°00'01"E| Sited through. |
| 19 JUN '45| Lat 20°32'43"N Long 132°01'38"E| Sunk by 20MM. |
| 26 JUN '45| Lat 20°34'00"N Long 127°19'27"E| Sunk by 20MM. |
| 26 JUN '45| Lat 20°34'00"N Long 125°25'30"E| Sunk by 20MM. |
| 28 JUN '45| Lat 20°34'52"N Long 125°36'00"E| Sited at night. |
| 29 JUN '45| Lat 20°34'15"N Long 125°30'00"E| Sunk during day. |
| 2 JUL '45 | Lat 20°37'20"N Long 125°30'00"E| Sited at night. |
| 11 JUL '45| Lat 30°53'N Long 126°35'32"E| Sited at evening twilight. |
```

— page 115 —
```
UBS-6, TRUTH (Skl.21)

"T" LINES
DATE: 11 JUL '45  POSITION: Lat 39°52'N Long 126°26'52" E from Sighted in evening twilight.

"3" ANTI-SUBMARINE MEASURES AND EVASION OPTICS
     No enemy anti-submarine measures or tactics were encountered. No targets worthy of torpedo fire were seen on this patrol except three (3) refuel boats on routine anti-submarine escort. In each case, the range would not be closed sufficiently for an attack.

     Three separate enemy anti-submarine craft were observed, one large cargo carrying submarines which was sighted, two (2) were targets specifically named. Neither during the attack, nor after was any enemy anti-submarine forces of our detection, observed or uncovered. Simply stated, anti-submarine forces were at a minimum throughout this patrol run.

"T" MAJOR DEFECTS AND DAMAGE
Fuel and Machinery
(a) Electrical
     On 5 June a quantity of oil was found in the bottom of the main generator housing. The inspection plates were detached and investigation revealed that the brush wells and the housing surrounding the brush wells were in the condition as reported. The upper part of the brush and the coils appeared dry. The lower part of the brush and bell was removed and the body of the main generator found to be in good condition. The oil was presumed to be from the main generator. It was also noted that the oil could not drain from the generator through its housing. Strong evidence indicated that the oil was leaking from the main generator itself. In this instance, however, a small cloud of oil was observed. In this way, however, a small cloud of oil was observed. The main generator was removed and the housing exposed to the atmosphere for thorough cleaning with a portable hot air blower. Resistance readings were
- 44 -
```

— page 116 —
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U.S.S. TRUTTA (SS421)

"MAJOR DEFECTS AD DATA"

taken on the field and armature circuits and were found to be high. The housing was resealed and the generator placed back in commission. Subsequent operation throughout the patrol was satisfactory and no further difficulty was experienced with oil entering the generator.

(b) Engineering

A diving casualty occurred to 7 and 2 main engines during routine dam drive on 7 July. On the surface 7 am on a line on propulsion and was in contact with our surface condition. The vessel's main throttle was now three-speed oilers. Who stood on the sick list. It was a real engineering situation as this vessel was scheduled to leave for diving, this occurred amidst the most serious conditions. The main engine was found to be running, but the other was not. They did not have a gauge, warning of the situation. The loss of the main engine was significant. It was possible to close the main valves finally closed, and it was possible to get the valves to operate. The oil in a sump was dumped, new oil was added, and the situation was handled with the utmost care. The main engine was found to be leaking with the turbo or draining system being broken with it. The oil was being circulated by your pump. The main engines were started and run individually. The main engine is now in better condition.

(c) Hull

No loss or casualties were experienced in the C & R Department.

Ordnance and Tactics

One minor casualty occurred in the torpedo department when the deadly state of failure was slightly noted, probably due to failure or potential damage.

- 45 -
```

— page 117 —
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U.S.S. TRUTHA (SS421)

"IV"  L I N E R D E F E C T S A N D D A M A G E
Ordnance and Gunnery (Cont'd)

the spindle before attempting to remove the torpedo from the tube. This spindle is still operative, but also, it will be replaced during refit.

No casualties occurred to any of the guns. All performed remarkably well during each of the three protracted gun engagements.

"L"  R A D I O

No casualty was encountered in radio equipment nor was any outstanding performance noted other than the fact that all equipment performed effectively in satisfactorily their respective jobs for which designed.

Communication with the aircraft and closely was excellent. [UNCLEAR: possibly "visual" or "radar", this detail is not established by the time this line was written] were not established by the time this line was written.

Radio contact was established with the U.S. Navy Patrol (40) and continued until the end of the patrol.

It was noted that the signal was so strong that it was solidly heard to the depth limit (60) feet for the entire contact, or the plane kept on line as it was necessary.

Numerous contact reports were received from aircraft and also from Radio Circuit of NAVTAC, but unfortunately none of them proved fruitful for us. On a few instances, it simply led to our requesting assistance from another plane and leading him to the target.

The contacts were close enough to warrant hearing radio silence.

We received some intelligence information via from aircraft but nothing that led to enemy contact. In most cases the contacts were beyond our reach, being either well inshore or at a great distance from us.

"IV"  R A D A R

The radar performance throughout the entire patrol was good. The mechanical radar performance during this area was not registered this time, probably due to changes
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— page 118 —
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U.S.S. TRUTA. (SS421)

THE RADAR

atmospheric conditions.

about one week out from Tausa the efficiency of the SF was reduced to about 50%. This was due to grease from the lower bearings on the periscope adapter getting into the wave guide. The periscope looked quite badly last two causes, the rise to humidity. The adapter was removed and the entire assembly flushed and cleaned, her crests was added to the bearing and the SF was again back to its normal performance. It is suggested that the tender and repair bases remove the periscope adapter and clean this assembly after each patrol.

The SF performance was up to its high standards; no major casualties were experienced. We did install the radar around the coasts as they started the torpedoes and ranged around to prevent casualties from both, and being by personal judgment, it is noted.

The BD was kept approximately every minute when the visibility was less than eight (8) miles and running every two (2) minutes when visibility was more than eight (8) miles.

The radar was limited to eight (8) miles, and for normal conditions, it was found that the Control Room was the best place to operate the radar. The radar was operated by a man on the bridge, and a plan was made to scope out the surface vessels to assist in the ammunition with friendly planes this was set.

About one week out from Tausa the 3D started to miss planes which it obviously should have picked up. The scope was very slow, and after clarity, the 3D was found to be in need of repair. The radar was not working as it should, and the points used in the radar were not being tracked as they should. The 3D was also used to its usual high performance and ran up to 20 (22) contacts and as many as 10 (10) sonar contacts were obtained on planes.

SOUND GEAR AND SOUND COLLECTORS
The performance of all sound gear including the sounding indicator was excellent throughout the patrol. [HANDWRITTEN: JP some]
```

— page 119 —
```
UNSUB TRUTH (S-842)

"IV" SOUND GR. AND SOUND CONDITIONS.

equipment kept us aware of our ships noises at all times and assisted greatly in locating their source so that they could be eliminated. Due to the lack of escorts, however, we were unable to observe the operation of the sound equipment under attack conditions.

"0" DENSITY LAYERS.

Most of the layers encountered were undi- isothermal water at depths around one hundred (100) feet. These conditions are all of the most favorable, and both the various records show a temperature drop of 18 degrees between 55 and 58 feet. This layer was under isothermal water and caused the boat to emit too many tones light at depths below 90 feet.

"TP" HEALTH, FOOD, AND MORALE.

The general health of the crew and officers was good throughout the patrol. Only one man was on the sick list and that for just two days. He had an acute case of dysentery which cleared up rapidly and routine continued.

The quality of the food and its preparation was excellent. Variation of the menu, including freshly baked goods etc. was an added in keeping the morale high at all times.

Cool weather kept the habitability good, and it was unnecessary to run the air-conditioning. I feel the work on this part of the crew kept the boat very clean during the whole patrol.

"8" PERSONNEL.

(c) Number of men detached after previous patrol - 11
(d) Number of men on board at start of patrol - 60
(e) Number of qualified men at end of patrol - 59
(f) Number of unqualified men at start, first patrol - 13
```

— page 122 —
```
| TITLE | DATE     | TIME | FREQ | MODUL | SIZE RANGE | LOCATION | DRIFT | GENERAL REMARKS |
|-------||------|------|-------|||-------||
| 00:00 | 6/21/15  | 157  | 500  | Intermittent | 12       | steady   | do    | 12-27           |
| 2025  | 6/21/15  | 175  | 12   | steady       | do       | do      |                  |
| 2038  | 6/21/15  | 208  | 1000 | 12           | Intermittent | pos. pl. | 12-30 |                  |
| 0038  | 6/22/15  | 137  | 500  | steady       | shore base | 13-31 |                  |
| 0330  | do       | 150  | 1000 | Intermittent | Airborne  | 13-41 |                  |
| 1045  | do       | 160  | 1000 | Keyed        | Airborne  | 13-36 |                  |
| 0847  | 6/22/15  | 37   | 400  | 25           | steady    | XXXXXX  | 13-31            |
| 0100  | 6/22/15  | do   | 500  | do           | do        | 12-40   |                  |
| 1040  | 6/24/15  | 300  | 750  | do           | do        | 12-30   |                  |
| 1040  | 6/24/15  | 300  | 750  | steady       | Airborne  | 12-31   |                  |
| 1540  | 7/25/15  | 155  | 500  | 10           | Intermittent | micro band | 12-37 | 12-37           |
| 1040  | 7/25/15  | 155  | 500  | steady       | shore base | 12-37 |                  |
| 1245  | do       | 106  | 500  | Intermittent | do        | do      |                  |
```

— page 123 —
```
TITLE:  PATROL REPORT
DATE:  11/11/15
LPO:   150
RAY:   750
TOTAL: 10
SHIP NAME:  steady
LOCATION:  MINSU
DRAFT:  12-20

2135  do  96  1000  20  steady  do  do
2355  do  156  1000  20  irregular hand sweep  do  30-30
2200  12/12/15  75  750  50  steady  do  14-20
1030  do  155  500  50  intermittent  do  12-30
0530  12/13/15  154  410  17  do  do  31-39
0600  do  162  430  7  do  do  31-39
0645  do  137  500  60  steady  do  do
0640  do  100  750  19  slow large sweep  do  31-36
2000  12/14/15  150  500  5  intermittent  do  31-35
2000  12/15/15  150  400  30  intermittent hand sweep  do  26-02
1800  do  197  500  35  do  do  36-00
0000  do  159  500  40  do  do  32-37
```

— page 124 —
```
Tab.  Date    From    To    Amt.   Sub. Type    Location    Drai.   C. R. C.  I. S. O. S.
      07255   6/24/45  98    500   25    1 torpedo   albacore base   35-54   127-57
      1210    6/28/45  157   500   6.5   Intermittent   do   31-30   125-25
      1235    6/28/45  76    1300   do   do   35-07   [HANDWRITTEN: 125-20]
```

— page 125 —
```
U.S.S. TRUTHA (SS-321)

1. General

The failure to contact any really worthwhile targets was a great disappointment to all on board. However, with the realization that there are very few and far between these days, we did our best to adjust to the further changing conditions, and sought out the same old as the big. Considering the abundance of carrier-type vessels, large liners and the merchant marine, there is still some chance to make contact. (1) This is difficult to find enemy vessels. (2) But equally conspicuous are the lack of major vessels in the TIIOL SSA area, not only six (6) vessels representing the TIIOL SSA area, but only three (3) planes near. Patrols seem to be more or less continuous. [UNCLEAR: possibly "continuous"] operations in the TIIOL SSA area are rare these days.

2. Personnel

All the officers and the crew deserve high praise for the tireless work in which they performed their duty on this patrol run. Although it is impossible to mention each individual personally, Lt. Leonard, Jr. and Lt. Duncan deserve special mention. Lt. Leonard, Jr. did an excellent job, executing orders and keeping morale up during the patrol, marginally speaking, and doing the usual work of a good officer. Lt. Duncan was also a most industrious officer and was instrumental in the success of the patrol.

Lt. William R. Anderson, Torpedoman and Engineering Officer, made special mention of the crew's performance. The crew performed their duties in a most commendable manner. (09) men were on duty during the patrol and all were in good spirits. I can say that the crew is still in good spirits and that is to be expected.

In all this, the officers did a very sterling job in keeping their respective departments in line to the best of their ability and showed every indication of officer-of-the-deck at all times and ...
-54-
```

— page 126 —
```
U.S.S. TRUTHA (63121)

Watches. At no time during the run were we spotted by enemy aircraft which speaks well for the alertness and visibility of the 10.0 D's plus men standing their part under such circumstances.

Cpl. Bernard J. Schneider, VHR, deserves commendation for his judgment and initiative in the rescue of an officer from the aircraft while the vessel was submerged for a period of about six (6) days, during which time the period of exposure was satisfactorily after his long period of exposure.

The strike 5" in crew receivers to commanding officer is, please for their excellent schools, during our time (3) engaged in a strike which speaks well for the training of the personnel. Not a single mishap occurred in which the unenumerated detail for and initiated this weapon. The 10.0, 20.0, and 50 caliber, likewise, did excellent work.

The Commanding Department should be commended for its job of producing well-planned, well-executed, and vicious jobs of training.

I think performed their respective jobs in a most satisfactory manner throughout the patrol.

- 55 -
```

— page 127 —
```
SUBMARINE DIVISION THREE FORTY TWO
Care of Fleet Post Office
San Francisco, California.

Serial 04.                                    20 July 1945.

FIRE REPORT No. 1
3534/A16/5(6)
Serial 018  7/18/45

From:     The Commander Submarine Division THREE FORTY TWO.
To:       (1) The Commander in Chief, United States Fleet, Flt.
          (2) The Commander Submarine Squadron THIRTY FOUR.
          (3) The Commander Submarine Forces, Pacific Fleet.
          (4) The Commander in Chief, U. S. Pacific Fleet.

Subject:  U.S.S. TUNA (SS-203) Report of War Patrol Number TWO.

1.  The SCOOTER war patrol of the USS TUNA under the command of
Lieutenant Commander P. D. Perkins, U.S.N., was conducted in the East China
Sea, Yellow Sea area, and was for forty-five (45) days duration.  A
total of thirty three (33) days were spent on life guard station in
the assigned area.  The patrol was terminated by order of Commander
Submarine, Pacific Fleet.

2.  The areas were covered in a thorough and aggressive manner.
The only targets worthy of torpedo fire were two (2) P. C. type ships,
sighted on 5 June 1945, and two (2) large sailing schooners and
these could be closed for assessment and attack.

3.  On 1 July TUNA encountered a group of sailing schooners.
In a brilliantly executed attack TUNA sank seven (7) large sailing schooners and
one (1) fishing craft which was under fire and destroyed.

About dawn on 6 July, TUNA sighted a tug with three (3)
large schooners in tow.  A gun action that lasted about twenty (20)
minutes as the entire group was destroyed or left in a sinking condition.

4.  TUNA's war patrol was carefully planned and well executed to
attack fishing craft.  A large air strike performed on 28 June 1945 had
resulted in the destruction of five (5) of these cargo carrying ships.

5.  Lifeguard services were performed during the period of
June during which time a single enemy airman, Lt. Amy J. Hurst, was
the pleasure of receiving assistance from TUNA.  The pilot, who had ridden out a typhoon while adrift in a rubber boat for six days.
```

— page 128 —
```
SUBMARINE DIVISION CHIEF PORT TWO
Commanding Officer
San Francisco, Calif.
Serial: 04
20 July 1945

Subject: USS TUNA (SS-203), Report of War Patrol Number Two.

7. Communication between TUNA and friendly aircraft were excellent, and on several occasions VHF communications were established after the submarine had dived to forty feet when the identity of a plane contact was uncertain.

8. It was fortunate that TUNA was able to clear without difficulty on coming toward beach, which had become fouled during the dive on 5 July 1945.

9. The TUNA returned from patrol in good material condition, and an excellent state of cleanliness. It is expected that profit will be accomplished during the normal period.

10. The Administrative Division Commander heartily congratulates the Commanding Officer, officers and crew upon the completion of this active and aggressive patrol. The severe strain inflicted upon the enemy's dwindling cargo fleet will be sorely felt.

[SIGNATURE: E. H. McMahon]
```

— page 129 —
```
SUBMARINE QUARTERS: TWENTY-FOUR
PQS-34/A16-3
Series (23)
C-O-O-P-E-R-A-T-I-O-N

SCHOOL REPORT to
U.S.S. HURRICANE (SS-421)
21 July 1945

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

Subject:  U.S.S. HURRICANE (SS-421) - Report of War Patrol Number TWO.

1.  Forwarded, occurring in the remarks of the Commander Submarine Division Number FORTY-TWO.

24.  The Commander Submarine Squadron TWENTY-FOUR takes great pleasure in commending Lieutenant Commander T.P. HOGAN, U.S.N.R., his officers, and men for the outstanding performance of their duties in the execution of actions against the enemy.  Special commendation is given to the fact that these sailing vessels, which were boarded and taken prisoners, were loaded down with food supplies for the enemy.  It is also of note that this excellent reserve was conducted with one of the first of our brilliant reserve officers in command.

E.W. [HANDWRITTEN: GRIFFIELD]
```

— page 130 —
```
Y12-101(A)A16-18
Serial 01864

CONFIDENTIAL

Date of Fleet Post Office:
San Francisco, California,
27 Jul 1965

TO: THIS SPACE WILL BE
RECEIVED PRIOR TO
[STAMP: 181347]

COMMANDER SUBMARINE FORCE, PACIFIC FLEET
From: The Commander Submarine Force, Pacific Fleet.
To: The Commander in Chief, United States Fleet.
Via: U. S. S. LAVAL (SS-368) - Report of Second War Patrol
Subject: (1 June to 18 July 1946)

1. The second war patrol of the LAVAL, under the command of Lieutenant Commander F. P. Schindel, U. S. Naval Reserve, was conducted south of the Empire and in the East China Sea in waters near Japan.

2. An early part of this patrol was devoted to lifeguard duties during which the LAVAL was assigned to assist Lieutenant A. M. Surry, 46th Fighter Group, U. S. Air Force, in the recovery of downed airmen. The LAVAL was in the vicinity of the tip of Honshu when she was ordered to proceed to assist in the recovery of a downed aircraft. Upon arrival in the area, the LAVAL was informed that the aircraft had been recovered successfully by a rescue aircraft. The LAVAL then proceeded to conduct reconnaissance patrols in the area and displayed throughout this patrol an intense and aggressive fire control training.

3. Award of Submarine Combat Insignia for this patrol is authorized.

4. The Commander Submarine Force, Pacific Fleet, congratulates the commanding officer, officers, and crew of the LAVAL for this fighting and successful patrol, during which the LAVAL is credited with the following damage upon the enemy during this period.

| 8 - MITS (7 Large Eco Going Tenders)  | 2,200 tons (See Attack No. 1) |
| 4 - MITS (1 Small Eco Going Tenders)  | 960 tons (See Attack No. 2)   |
| 3 - MITS (3 Large Eco Going Escorts)  | 1,650 tons (See Attack No. 3) |
| TOTAL SUM                             |  650 tons                     |

[STAMP: AUG 6 1965]

AUTHORIZATION & DISTRIBUTION
on following page.
```

— page 131 —
```
F72-10(L)JAG-3(18)
SUBMARINE PUBLICATIONS, PACIFIC FLEET
Serial 61884
CONFIDENTIAL

FROM: COMMANDER to
SUBJECT: Report of
Second War Patrol.
CONSIDERED PUBLIC DOCUMENT NO. 82
U.S.S. TAMBOR (SS-198) - Report of Second War Patrol
(2 June to 18 July 1945).

Subject: U.S.S. TAMBOR (SS-198) - Report of Second War Patrol
(2 June to 18 July 1945).

| DESCRIPTION | (Complete Report) | (7) |
|||-----|
| Comdr.      | (1)               | (1) |
| Group       | (0)               | (0) |
| JICPA       | (1)               | (1) |
| Afloat      | (1)               | (1) |
| Observance  | (1)               | (1) |
| Consultant   | (2)               | (2) |
| 5th Section | (1)               | (1) |
| Comdr.      | (1)               | (1

— page 132 —
```
S8/21/S16-3/(10)
[STAMP: DECLASSIFIED]
Cerc of Pilot Post Office,
San Francisco, California
Serial: 022
DECLASSIFIED: ADT 044, OPNAV 5210
BY [HANDWRITTEN: George Clark] DATE 6 July 1947

To: The Commanding Officer,
    U.S. Submarine Force, United States Flot.
    (1) Commander in Chief, Pacific Division 322.
    (2) Commander Submarine Division 32.
    (3) Commander Submarines, Pacific Flt.

Subject: U.S.S. TRITON (SS-201), Report of War Patrol Number...

Enclosure:
    (a) Subject R.ort.
    (b) Track chart.

Inclosure (a), covering [HANDWRITTEN: THIRD PATROL] of this vessel, scheduled for a period of 30 days, and including a statement by design of boats. This report covering operations from 12 August 1945 to 24 August 1945, is forwarded herewith.

[SIGNATURE: Frank P. Hutton]
```

— page 133 —
```
U.S.S. TRUMBA (SS421)
"M" NARRATIVE
12 AT USN 1945
1500(K) Departed CULM in accordance with CO: SULAC OPORD 195-5 of 11 Aug 1945, for decisive patrol in L.B. 6TH A. and YELLOW; in company with U.S.S. KRETA. The following officers and CPO's were on board:

1. Officers:                     Rank                War Patrols (act incl)
   Franz Perkins Hoskins         Lt. Co.  USNR - 13 patrols
   Jarrell Ridley Daugherty     Lt. Comdr USNR - 12 patrols
   William Robert Anderson       Lieut.    USNR - 11 patrols
   Donald Edward Kaiser         Lieut.    USNR - 12 patrols
   Paul J. Sutherland, Jr.      Lieut.    USNR - 5 patrols
   Allen C. Locke               Lieut.    USNR - 5 patrols
   James Edward Smith           Lieut.    USNR - 5 patrols
   Edward H. Jason Carter, Jr.  Lieut.    USNR - 2 patrols

2. Chief Petty Officers:        Service No.  Rate  War Patrols (for incl)
   HILER, John Henry            201 72 77  CT. (1)  7 patrols
   HILER, David                 250 26 77  CT. (1)  12 patrols
   HILER, Roy Earl              250 26 77  CT. (1)  12 patrols
   LARSON, Borman Ross          250 26 77  CT. (1)  2 patrols
   LARSON, Bernard Ash          201 23 43  CPO (2)  2 patrols
   DO-RAC, Neal (h)            201 23 43  CPO (2)  2 patrols

3. Averses: CPO's

Crew, 21; CPO's included 22; Officers and Crew, 22A.

1520(K):  Exchanged calls with escort PO 1257. Fell in on port quarter of escort, RYAL on starboard quarter.
1702(K):  Entered area of 1,800 fathoms. 600-gangery blew hull stop-cock view. Valve shows
            [UNCLEAR: best guess] to eliminate leak.
1722(K):  [UNCLEAR: best guess] and set course 3000' on the (r) as (1)
            [UNCLEAR: best guess] to regain position on port quarter of ss-
1800(K):  Secured for CULM.
1820(K):  Co aimed, keeping distance astern of RUTNER, Distance
            between 3,000 and 8,000 yards.
```

— page 134 —
```
U.S.S. TUNNY (SS-282)

PROLOGUE

Arrived APRA HARBOR, GUAM on 18 July 1945, upon completion of war patrol. Proceeded to Inner Harbor and moored alongside TUNNY for relief. CO, SUBDIV 342 immediately stated history account and associated conditions encountered with the U.S.S. TUNNY during this refit. The regular ship's officers and men left for CAGI DAHIT in the afternoon for two (2) week's rest.

There was no change effected in officer personnel during this refit. Ten (10) enlisted men were transferred to CO, SUBDIV 342 for rotational purposes and like number were received from the division as replacements.

The TUNNY's regular ship's officers, and crew returned to the ship on 2 August 1945, after a two (2) weeks leave. The U.S.S. TUNNY was found in a four (4) day post-repair period with the following tasks and alterations accomplished, a mixture method of four (4) followed under the direction of the Commanding Officer, DIV 132, Captain L. J. McCoy, USN. One (1) of the first was such as to be followed by the firing of four (4) torpedoes at the following targets. For the next two (2) weeks, successfully completed the repairs and conducted a period, simulation "Equalized in Business-like" during this period.

The TUNNY was ready for sea on 12 Aug and entered a two (2) day loading period.
```

— page 135 —
```
U.S.S. THRESHER (SS-421)

                             13 AUGUST 1945

Enroute U.S. to BAST CITA. She in company with RULER.

0600    Made training give.
0630    Surfaced and required position astern of RULER.
0915    Made quick dive for training.
0951    Surfaced and proceed at two (2) engine speed.
        Rebuild sound.
1120    RULER training dive.
1200    Surfaced and took position astern of RULER.
1230    RULER had 17-30-001: 11, 14-01-002.
        Sighted friendly submarine, bearing 210°(T), distance
        about 2 miles, thurible, serious, on opposite
        course.
1700    Commenced working up ahead of RULER. Sent to LINES
        BATTING, 500.
1800    Surfaced and took position astern of RULER.
1822    Surfaced and took station astern of RULER.

                             14 AUGUST 1945

Enroute U.S. to ZAST CITA. She in company with RULER.

0717    Made quick dive for training.
0757    Surfaced, took position astern of RULER.
1130    RULER submerged, stayed on surface to set up ahead
        of RULER for protective approach.
1200    RULER took 20-30-80. Approached.
1302    RULER took 20-30-80. Approached north upon move.
1328    Surfaced and again took position astern of RULER.
1400    Made quick dive.
1900    RULER indicated her speed 16.5 knots. Told her
        to take lead and we would proceed accordingly.
1930    RULER indicated her speed 16.5 knots.
2200    Commenced learning unofficial rumors over commercial
        radio stations that Japan has accepted allied terms
        of unconditional surrender.

                             15 AUGUST 1945

Enroute U.S. to E.L.S.T. CITA. for offensive war patrol.
```

— page 136 —
```
U.S.S. TANG. (58421)

"5"  L A R T I V E

15 AUGUST 1945 (Cont'd)
0859(I)  Made quick dive for training.
0907(I)  Suffered and set course to north on two main engines.
         Received word of continued radio news to maintain fact
         that Japan had definitely sent word to Washington
         that they had surrendered unconditionally.
1030(I)  Received official word from O.O.  0830C that neotiations
         for peace were being effected and that all sub-
         marines should remain on patrol as to remain
         alert for any hostile actions.
1200(I)  2011 Lst.  27-57-05; Long.  139-30.
1342(I)  Made quick dive for training.  OOD (Diving Officer
         verif., we must be alert as ever for treachery,
         surfaced and set course to the enemy.
1910(I)  Surfaced and set course to the enemy.
2000(I)  Received new category patrol exercise orders.

16 AUGUST 1945
0901(I)  Made quick dive for training.
1027(I)  Discarded and set course to west on two main engines,
         2011 Lst.  29-15-02; Long.  138-02-07.
1355(I)  Sighted main Lst.  29-17-58; Long.  137-55.
1405(I)  Sighted nation, approximately same position.
1410(I)  Made quick dive for training.
1430(I)  Sighted enemy in 2034 vicinity.
1700(I)  Received word from C.O.  0900C "proceed to AMITY."
         Believed word to be true.
1830(I)  Sighted 1st, 0 horizon, bearing 105°(T), dis-
         tance 10,000 yards.  Observed periscope below
         surface.  2(2) knots.  Pointed horizontal
         mark.  Out-sinking work was noted in a cloud
         of diesel smoke, bearing 096°(T).
1923(I)  [HANDWRITTEN:  -3-]
```

— page 137 —
```
U.S.S. THETA (SS-21)

"X"  KAYATIVE

17 AUGUST 1945

Enroute patrol area to IDD-17:

0945(F)  Made quick dive for training.
1005(S)  Surfaced; set course to west on; two main engines.
1200(F)  Soft lat. 25-28N; Long. 141-45-50.
1600(S)  Sent TRAV. table one to 20-30-40 acknowledged.
1730(S)  Orders received; identified course as DD 33 and DD-4.
1750(F)  Made a quick dive for training.
1900(T)  Made quick dive for training; set course to east.
1906(F)  Fixed time (3) destroyer, hull down, bearing 110° (S), distance about ten (10) miles, on hourly course.
1907(T)  [UNCLEAR: best guess]

18 AUGUST 1945

Enroute patrol area to IDD-17:

0543(K)  [HANDWRITTEN: S1, had friendly submarine, dived 2300'(F), Exchanged recognition signals.]
0730(K)  [HANDWRITTEN: Also had a signal from S1 at, bearing 115°(T), dis-
          tance about seven (7) miles, she went to make about 180°.]
0850(K)  [HANDWRITTEN: Made quick dive for training.]
0855(K)  Surfaced; set course to east on two main engines.
1200(F)  Soft lat. 29-37-06; Long. 147-07-003.

19 AUGUST 1945

Enroute patrol station to IDD-17:

0100(K)  Set ship's clocks ahead one (1) hour to minus eleven (-1) and time.
1031(K)  Made quick dive for training.
1038(L)  Surfaced on two main engines; set course to east.
1200(F)  Soft lat. 25-29-03; Long. 155-50-02.
1431(L)  Made a quick dive for training.
1435(F)  Surfaced; set course to 090°(T) on two main engines.

20 AUGUST 1945

Enroute patrol station to IDD-17:
```

— page 138 —
```
U.S.S. TERRA (568421)

NARRATIVE

20 AUGUST 1945 (cont'd)
1059(L)  Take quick dive for training.
1102(L)  Surfaced on two main engines; set course to east
         by Arma Course Clock.
1200(L)  Comm. Let. 25-48-00N; Lon. 157-01-00E.

21 AUGUST 1945
Enroute pa roi station to MIDWAY.
1200(L)  Comm. Let. 25-37-05N; Lon. 152-15-00E.
1621(L)  Take quick dive for drill.
1638(L)  Surfaced on course 090°(T) on two main engines.
         Commenced equalizing battery charge.

22 AUGUST 1945
Enroute patrol station to MIDWAY.
0000(L)  Set ship's clock ahead one (1) hour to minute twelve
         (-12) zone time.
0140(L)  Completed equalizing, and reg; put auxiliary engine on
         line.
1000(L)  Documented three (1) hour battery discharge.
1200(L)  Comm. Let. 29-17-05N; Lon. 162-05-00E.
1230(L)  Set ship's clock ahead one (1) hour; put two
         auxiliary engines on line on zero feet.
1843(L)  Commenced equalizing. [UNCLEAR: due to temperature
         or 130°?]

23 AUGUST 1945
Enroute patrol station to MIDWAY.
1200(L)  Comm. Let. 29-07-05N; Lon. 177-07-00E.
1630(L)  Made quick dive for training.
1635(L)  Surfaced on two main engines; tall for all heads.
         [UNCLEAR: used water on battery?] [UNCLEAR: solution]
         [UNCLEAR: used water?]
1715(L)  Surfaced from diving; will commence ahead on two main
         engines, best course 090°(T) by Arma Course Clock.
```

— page 139 —
```
U.S.S. TRUTHA (SS-401)

"N" NARRATIVE

22 AUGUST 1945 (cont'd)
2005(1) Co...menced equalizing battery charge.

24 AUGUST 1945
Enroute patrol station to IDDIA.

0300(1) Completed equalizing battery charge.
1200(1) Position Lat. 22-24-00N, Long. 178-16-00E.
        Six knots for 300 feet to direct for idle.
        Course laid, set base course 100°(T) by Azmuth Course Clock.
1540(1) Surfaced, idle two minutes.
1815(1) Started out to sea on a mist; set base course 100°(T)
        by Azmuth Course Clock.
2135(1) Radar interference from friendly S/W, bearing 330°(T);
        "probably" two PISTOLS.

24 AUGUST 1945
Enroute patrol station to IDDIA.

0000(1) Crossed the International Date Line eastbound, thus
        reverting to Friday, 24 August 1945. Set ship's clock
        back twenty-four (24) hours to plus twelve (plus 12)
        hour time.
0455(2) Sub of PISTOLS, 28° 25'N, distance about
        5 miles (5).
0600(2) Sighted and established contact with a sub, plane
        surfaced to check. Roll is behind PISTOLS, base
        course 500°(T) on four main engines.
0845(2) Hooped IDDIA.
```

— page 140 —
```
U.S.S. TRUTHA (S-421)

"c"  HELM
To weather out of the ordinary as encountered during the thirteen (13) days at sea on this, the start of patrol. Weather conditions coincided with sailing direction predictions.

"p"  TIDAL INFLUENCE
No unusual tides or currents were encountered.

"q"  NAVIGATIONAL AIDS
No navigational aids of any description were seen during this run. Variation was by celestial bodies except for sights. It is now, [UNCLEAR: best guess] and double occasion, positions with of LOF's [UNCLEAR: best guess] and [UNCLEAR: best guess] days out of [UNCLEAR: best guess].

"r"  SITE CONTACTS
No contacts of any sort were contacted during this short patrol.

"s"  AIRCRAFT CONTACTS
The only aircraft seen were friendly P-2's at [UNCLEAR: best guess] range. No enemy planes were seen.

"t"  MINE
No enemy mine(s) were sighted and sunk by 20% [UNCLEAR: best guess].

"u"  MISC
No enemy ships of any kind were contacted during this patrol.

"v"  SUB-SURFACE ISSUES AND RECON FLIGHTS
No sub-surface issues were observed on this short patrol, since no enemy was encountered, no recon tactics were used.

- 7 -
```

— page 141 —
```
U.S.S. TRUMP. (SS421)

LEAD DEVICES AND DANCE

During the thirteen (13) days at sea on this short run all machinery in all departments functioned perfectly. There were no casualties.

1. SLDIC
Radio reception was good throughout the run. At no time was there any trouble in copying any of the schedules. The three (3) hour delay was experienced in attempting to establish contact on the night of 22 August, 1945, about ten (10) minutes was used to be trying to reestablish the same contact. However, after patiently waiting for a couple hours, the message was caught and re-submitted for.

2. R.D.R.
Radar performance was excellent during the thirteen (13) days at sea. No casualties, we had a replacement of a couple of tubes, which were expended. No phalanx ranges were blocked up during this run.

3. SOUND CONDITIONS
Sound equipment functioned normally. Very little was heard of this except during training days.

4. DESIRE LIST
No abrupt temperature gradients of either negative or positive nature were experienced. On 05 August, 1945, the water temperature was 80 degrees. On 06 August, 1945, the water temperature was 79 degrees. The soundings were normal and the water was very clear. No unusual conditions encountered.

5. FUEL CONSUMPTION
Due to the shortness of this run at sea, the health of the crew can find at an optimum. The shortage of the fuel was due to the fact that we did not have to run at such high speeds, and possessed a good supply of fuel.

6. MISCELLANEOUS
In this usual manner, prepared and added additional, well-received meals to boost the morale of the crew and from time to time with snacks on special occasions such as our "Victory Dinner."
```

— page 142 —
```
U.S.S. PINTA, (SS-321)

"7"
"PERSONNEL"
(a) Number of men detached after previous patrol - 10
(b) Number of men aboard, current period - 80
(c) Number of qualified at end of patrol - 72
(d) Number of unqualified men making first patrol - 6

"8"
"MILES TRAVELED, FUEL USED"
(a) Miles to patrol station: - 15,100 1350
(b) To station -
(c) Patrol station to - 10,110  283
(d) Patrol station to - 45,240  3839

"9"
"DURATION"
(a) Days enroute GUAM to station: - 6 days
(b) Days on patrol station: - 80 days
(c) Days on station: - 0
(d) Days submerged: - 13
(e) Total all days on patrol - 99

"10"
"FACTORS OF ADULTS REFINED"
| Access | Fuel | Provisions | Personal Factor |
| 10 stow | 67,943 | 80 days | 75 days |
| 5 electric |  |  |  |
| 5 babies |  |  |  |

Lighting Factor: F. lighting factor. Patrol terminated upon cessation of hostilities and orders from COMSUBPAC.

"11"
"CO. WITNESS: J.B.S. AND SCAR OCCASIONS"
[STAMP: R. Caskers]

"12"
"REMARKS"
This patrol was... and the war... at the current time, it just said that this period of... was about only 150 miles more than...
[UNCLEAR: best guess]
"On-station for this ship and the performance of the officers and crew was in keeping with this ship's past high standards."

-9-
```

— page 143 —
```
SUBMARINE DIVISION THREE T.W.D.
C. S. of E. Fort Cliffe
S. F. P. I. C.

Serial 010
25 March 1945

S C H E D U L E

CONFIDENTIAL

F I E L D R E P O R T
U.S.S. TUTTLE (SS-194)

From: The Comdr. Submarine Div. 3, THIRTEEN FLEET, T.C.
To: The Commander in Chief, United States Fleet.
    (1) The Commander Submarine Force, Pacific Fleet.
    (2) The Commander in Chief, United States Pacific Fleet.

Subject: U.S.S. TUTTLE (SS-194) - Report of War Patrol Number THREE.

1. The U.S.S. TUTTLE departed Guam for her third war patrol in the area of the Solomon Islands on August 12, 1945. Before arriving on station hostilities ceased on August 15, 1945. TUTTLE was directed to return to Midway.

2. TUTTLE arrived at Midway on August 24, 1945 in an excellent state of cleanliness and no material deficiencies.

D.C. McTILLER
```

— page 144 —
```
P0S-32/A6-3
SUBMARINE SQUADRON THIRTY - TGC
Serial Call
Q-C-H-H-H-H-H-H-H-H

[STAMP: NOT FOR PUBLICATION]
[STAMP: U.S. Navy Department]
[STAMP: Report of Third War Patrol dated 24 August 1945]

From: The Commander Submarine Squadron THIRTY - TLA.
To: The Commander-in-Chief, United States Pacific.
    (1) The Commander, Submarine Force, U.S. Pacific Fleet.
    (2) The Commander-in-Chief, United States Pacific Fleet.
Subject: U.S.S. TUNA (SS-203) - Report of Third War Patrol.

Forwarding, concurring in the remarks of the Commander Submarine Division THIRTY - TLA.

[SIGNATURE: illegible]
27 August 1945
```

— page 145 —
```
FT12-10(a)/1.16-318
SUBMARINE FORCE, PACIFIC
Serial 0219
CONFIDENTIAL

THIRD ENDORSEMENT to
ALBUM Report of
Third War Patrol.

CONCURRENCE PATROL REPORT NO. 891
U.S.S. TRUTT - 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. TRUTT (SS421) Report of Third War Patrol
(12 August to 24 August 1945).

1. The U.S.S. TRUTT, under the command of Lieutenant Commander F. P. Hoskins, U.S. Naval Reserve, departed for her third war patrol but did not reach her assigned area prior to the time hostilities with Japan were terminated.

2. This report is forwarded in order to complete the war record of the U.S.S. TRUTT.

G. C. C. GRAYFORD,
Chief of Staff.

DISTRIBUTION:
[Complete Reports]
CNO (1)
Chicago (1)
JICPOA (1)
ComSubPac
Cincinnati
ComSubDiv
ComSubPac, NL
ComSubPac, PH
CNO, S.A. Base, PH
ComSubPac
ComSubPac (Fwd Echelon)
ComSubPac (Rear Echelon)
ComSubPac
SubDiv. 11
J. J. Squadron and DIV.
ComSubPac (Prior)
ComSubPac (Baseball email)
SubDiv. 11, Pacific

[HANDWRITTEN: T. L. HUTCHINS, 2nd,]
Flag Secretary.

[STAMP: 4 OCT 1945]
[STAMP: FLEET NAVAL COMMAND]
[STAMP: NAVY DEPARTMENT]
```

— page 146 —
```
AID
USS TRITON (SS 421)
Serial:
[STAMP: DECLASSIFIED]
To:
The Commander Task Group 17.15
From:
The Commander Task Force Jr.
Subject:
Task Group 17.15, Report of war Patrol.
References:
Commander Submarine Force, Pacific Fleet, up and (72-54).
Enclosures:
(a) Subject Report.
(b) Training Schedule, Pearl Harbor to Saipan.
(c) Operation under Yellow Sea Area.
(d) Tura dispatches.

1. Enclosures (a) covering war Patrol of Task Group 17.15 in the Yellow Sea Area during the period 31 March to 26 April, 13 forwarded herewith.

2. This report is classified as Top Secret due to the intelligence information contained herein and should be transmitted by officer messenger only.

[HANDWRITTEN: Signature]
[HANDWRITTEN: A. S. Smith]
[HANDWRITTEN: Commander, U.S. Navy]
[HANDWRITTEN: Commander Task Group 17.15]
```

— page 147 —
```
Enclosure (A)

A. Froggies.

1. Task Group 17.16 was originally planned to be composed of the
   TUTTLE, LUNSFORD, HARRIS, and SHIRLEY, with orders to patrol the Yellow
   Sea Area as a co-ordinated attack group.

   TUTTLE, LUNSFORD, and Harris departed Pearl Harbor for Saipan
   on 19 March, 1945, and trained enroute as a wolfpack in accordance with
   schedule laid down in enclosure (B).

2. In departure from Saipan, the operational situation existing,
   however, split the group into two parts, TUTTLE and LUNSFORD proceeding
   to the original Yellow Sea Area, while SHIRLEY and Harris left to patrol
   off the north coast of Honshu. This patrol report does not deal with
   the operations of the SHIRLEY and Harris, but covers only the Yellow Sea
   area.

3. During the patrol the number of boats in the area fluctuated from
   six to two, all operating under the co-ordination of the TUTTLE, patrolling
   independently is a definite convoy. The following submarines participated:
   TUTTLE, LUNSFORD, FLUSH, STUYVESANT, and [UNCLEAR: possibly another boat].

4. No attempt is made to assess the damage inflicted by the group
   during this period, as results are unknown at the present writing
   and it is felt that as credit is due to attacks being made under the
   attack's local command the group commander must be made aware of the
   individual patrol reports and include about 15 Japanese ships of all
   descriptions.

5. The chief function of the Group Commander was that of strategic
   co-ordinator and communications clearing house, in the latter constitutes to
   the group commander, which in lead command as is

B. General Plan

1. A minimum of general plan of coverage of the Yellow Sea Area was based on
   a minimum of the general resources available and anticipated placements
   of the Japanese forces available in the area. It was found that
   the Japanese were not as active as anticipated, and it could
   be assumed that the Japanese were not in a position to conduct operations if
   use of the resources in the area.

2. The general plan of coverage of the Yellow Sea Area was that the following routes
   were to be considered in the area:
   1. The Shanghai-Tsingtao-Japan coastal route.
   2. The Shanghai-Tsingtao-Island-Japan Sea route.
   3. The Shanghai-Kaohsiung-Town route.
```

— page 148 —
```
P-1-1-1

(0) The routing along a definite route by all boats when intelligence information gave a large convoy as attempting to cross.

Areas were laid down as follows:
1. An area bounded by the Korean coast, Long 124E and lat 38N.
2. An area bounded by the Korean coast, Long 126E and lat 38N.
3. An area north of lat 34N from long 125E to Korean coast.
4. An area bounded by the China coast, Long 124E and the parallel of latitude of Tientsin.

This plan was carried out with some modifications being made as the situation varied.

B. Narrative

With arrival in the area information was received that a large convoy was attempting to cross from Shanghai to Shikoku Island and thence to Japan. All boats were ordered to go after the convoy by consumption of the location of the traffic and suspicion was known to be previously reported of the route, Seishore and Enwaile were areas mine could be expected to cover some sailing, south and south. Irita and Kionchi were therefore filled in along the direct route from Shanghai in the middle of the Yellow Sea.

From inter information it developed that this convoy did not cross. It is interesting to note however that two planes made definite preparations for its passage. Patrol boats found either patrol boats or submarines at Shikoku station, and many contacts with radar planes of two days duration and a plane based in Tientsin was also in the area.

Subsequent to this the boats were distributed in accordance with the general plan described above. Their actions are given in detailed reports by them and are not repeated herein.

On 27 April Irita was forced to leave the area due to low fuel on board and tactical command was turned over to the Flucia until arrival of exander task group 17.21 in springer.

C. Conclusions

1. Japanese traffic routes in Yellow Sea Area.

In general the Japs have two types of convoys in this area:
a. A coastal convoy moving from Shanghai to the Yangtze River to Tientsin, around the coast to the north, directed via the channel of small islands and small in nature, imaging it across and across to Japan when well inside Imperial Straits. A variation of
```

— page 149 —
```
ITT *******

this type is one which crosses from Washington to Attu via Anchorage, Lat
52° 30' N, Long 125° 42' E on the Aleutian coast, and from there proceeds down
along the coast to Japan.

2. A convoy which has no cargo shifting or truss in anchor or Chinese
parts, and which is proceeding direct to Japan, is a type described in the
first part of this report. It is assumed that the vessels are named and will
be assigned between either the north coast of the island, the
southern coast, or south of unknown to the routes across and around.

The first type described runs in from true to axis ships and
I believe, changes escort and probably way in into Daito Shima. They
hug the coast very closely, travel in the same direction, making it
extremely difficult to locate and attack.

3. The enemy's vessels are heavily escorted, containing very valuable ships,
and travel in many varied routes. It is noted that the patrols used to
search for these vessels are not as effective as they should be. An interesting
feature of this type is that it will not be in a long, continuous line, but
rather is searching for such a convoy it begins its journey.

2. A. Infinetics
The restricted area bounded by lat 13°-33' and 13°-74' is mined but
not necessarily its steamer given in our many different infomatics. It is
true that this convoy is known and that dirt closely as a defensive measure
against the convoy being bombed and destroyed. The area from
13°-33' to 13°-37' in long 125°-45' to 125°-49' has been mined.

13°-33' and 13°-37' have passed through the minefield of
the area and the southern part of the Yellow Sea, below lat 30, and
encountered all the mine vessels.

3. Anti-submarine measures.
a) Airborne Search.
The southern half of the area is quite well covered by search planes,
which were encountered along the United.

Eight aircraft planes are rare square.

b) Anti-submarine teams.
An airplane, three destroyer teams was encountered by Tirante and
truts off Shanghai. Truts was bombed and depth charged by a team composed of
```

— page 150 —
```
T-O-P S-E-C-R-E-T

many planes vectored to her initially by two radar equipped
pilot boats, and destroyers or escort vessels off Tsingtao.

(c) Patrols

     The Korean Coast is lightly patrolled by small craft
such as "PC", except off Daito Wan Anchorage where at least
one chider was encountered.

I. Convoy Routing.

     Apparently the Nips have a central command for the
entire area against submarines, for it was noted that when a
convoy was detected in a definite spot, escort ships
would be held up or re-routed over the entire area. This
was very well. As an example Truth stated out the validity of
this conclusion on the routing of a Japanese submarine. The
positions given did not furnish adequate information to warrant
a definite search, but they were definitely in the middle of
the sea. Thus, Truths had a dispatch to send the night before
and it was due, but was sent from a position along the Korean
Coast. I had anticipated this and moved it, but unfortunately
did not find him. Another occasion was when you take
off Shantung Promontory and a convoy was held up by radar
hours from last position. To date no report had been sent of
direction finding stations along the chain coast, but I am sure
they are there and efficiently manned, making it imperative that
only such transmissions are really necessary beemployed.

E. Communications

     The problem of communications in this area is as
stated in the preceding paragraph or after two transmissions
when, Truth had files dropped over her after two transmissions
early in the patrol. It is admitted the experiences created
worry in this anti-submarine location. The communications
WPDACO should only have been in the position, orders would be sent
dispatches such as air disposition, etc. would be sent out
by the C.O. of the Submarine. Truth had a message usually
on the scheduled, "higher" and all the prevailing parameters
for the ship, which were sent to the ship around to
fit the situation. Truth was moving the ship, it was
just a matter of "bottling" place with this fact. [HANDWRITTEN:  "Ref to our individual"]
```

— page 151 —
```
T-O-P S-E-C-R-E-T

Report contains a large number of plane contacts, torpedo firing by a Jap submarine, anti-submarine nets, and days of no local transmitter. It is felt that this is a penalty which the Group Commander ship must accept if real co-ordination is to be obtained. Communications were held to a minimum. Thus if it was known individual’s trouble to intercept a future convoy, no definite sourcing instructions or orders were sent, as it was expected and proven that each boat would break down the traffic involved and act accordingly.

The Japs jammed all circuits continuously, but all messages got through without great difficulty.

F. Recognition.

This problem is now acute. The writer is convinced that the Japs have taken radar similar to ours which produces an interference pattern on our 32 radar very similar to the other systems. The truth had now been verified in this sort of another area from a different area. It is now necessary to be sure it is and particularly when two friendly recognitions are closed and jammed, particularly when they can very easily give the Jap the challenge and reply if it is hard enough, and radar can be keyed, although it seems to be clear as for. It is use with the key and surfaces enough to be the solution to radar recognition until the Japs catch up to us in that wave band.

G. Weather

The weather in general was cool - about 40-60 degrees, seas calm, and the sea was covered with a dense fog about one sixth of the time. The fog might create a bell howler. The hindrance to navigation is simple in calm areas. However, the Japs seem to know this and hold important convoys during the worst periods.

H. Recommendations.

1. It is strongly recommended that search planes, assigned to the Group Committee for the purpose of tracking convoys in the sections of the sea, enabling the planes to cover the deep water sections as the convoy as it crosses one of the deep water sections.

2. Six boats are sufficient to cover the convoy along each coast, and two or three. One of these will probably have to be the Group Committee for individual attacks, which is a common goal and did trust on several occasions. Your boats, however, can do a good job in this area.
```

— page 152 —
```
T-O-P S-E-C-R-E-T

J. Delto Man Anchorage should be thoroughly scouted and pictures taken by airplane reconnaissance. It is felt that this anchorage as used by the Japs for convoy protection, escort shuttling, and possibly charge shifting, should also be scouted for a probable minefield in the shoals protecting it. In no minefield is found, and plane reconnaissance shows ships inside, its passage can be forced and the ships sunk.

The minefields in the middle of the Yellow Sea between Lat33-13N and 33-17N should be located when a site detecting submarine is available from more important duties. No boat has been damaged as yet, and further went through them twice in search of a convoy, but they are a definite menace and their location would help the boats in the area immensely.
```

— page 153 —
```
END OF REEL #1
JOB NO. H-10P
TRUITA
AR-12-80

THIS MICROFILM IS
THE PROPERTY OF
THE UNITED STATES
GOVERNMENT

[STAMP: DEPARTMENT OF DEFENSE]

MICROFILMED BY
NPPSO—NAVAL DISTRICT WASHINGTON
MICROFILM SECTION
```