U.S.S. BUMPER (SS-333) — war patrol report SS-333_BUMPER.pdf

— page 1 —
START OF REEL
JOB NO. [HANDWRITTEN: F-108]
[HANDWRITTEN: AR 94 78]

||||||| 1.0
||||||| 1.1
||||||| 1.25

||||||| 2.8
||||||| 3.15
||||||| 3.5
||||||| 4.0
||||||| 4.5

||||||| 1.4
||||||| 1.6

||||||| 2.5
||||||| 2.2
||||||| 2.0
||||||| 1.8

OPERATOR [HANDWRITTEN: HARRIS]

DATE [HANDWRITTEN: 23 May 78]

THIS MICROFILM IS
THE PROPERTY OF
THE UNITED STATES
GOVERNMENT

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

MICROFILMED BY
NPPSO-NAVAL DISTRICT WASHINGTON
MICROFILM SECTION

REEL TARGET, START & END
NAVEXOS 3968

— page 2 —
[HANDWRITTEN: BUMPER (SS-333)
WW II PATROL FILE
ALL MATERIAL ON THIS REEL IS DECLASSIFIED

FOR DECK LOG DECEMBER 1944 - DECEMBER 1945
CONSULT NATIONAL ARCHIVES WHICH HAS CUSTODY.

J.A. KOONTZ]

— page 3 —
Office of Naval Records and History
Ships' Histories Branch
Navy Department

HISTORY OF USS BUMPER (SS 333)

With a forboding sky frowning on the yard of the Electric
Boat Company at Groton, Connecticut, the new submarine USS BUMPER
slid down the ways into the Thames River on August 6, 1944. The
launching program was viewed by a large crowd of plant workers and
their families, company officials, Navy personnel and other special
guests. After selections by the company's band, Mrs. Joseph W.
Williams, Jr., wife of the ship's first commanding officer, christened
the ship sending foam streaming down the bow. With her father, Harold
E. Johnstone, fitting-out superintendent of the company, at her side,
it was a launching imbued with special family sentiment. Following
the ceremonies, the SS 333 proceeded on to the U. S. Submarine Base,
New London, Connecticut, where on December 9, 1944 she was commission-
ed with Commander Joseph W. Williams, Jr., USN, as her first skipper.

The BUMPER underwent post commissioning training at New
London and extended her field of endeavor to the area of Key West.
Soon after arrival in this sunny clime, it was discovered that
extensive corrosion existed in the main hydraulic system as a result
of salt water leaks in the periscope hydraulic hoisting system and it
was imperative that the ship return to the Electric Boat Company for
repairs. This unexpected job completed, the "333" again departed
from New London, this time on February 19, 1945. Back in Key West,
three days were used to engage in special tests, and the following two
weeks were spent in perfecting various training exercises in the
Panama area under the expert guidance of Captain J. B. Jones, USN,
Commander-in-Chief, Pacific Fleet, and commenced the passage to Pearl Harbor, T. H.,
arriving the first day of April. To further improve her mechanical,
engineering, and personnel teamwork, another seige of training
ensued at Pearl Harbor. By April 22, 1945 she was regarded as a
potential threat to the enemy and was sent out this day to Saipan
where she moored May 4, 1945, and commenced fueling and voyage repairs.

The FIRST War Patrol found her in the northern part of the
South China Sea off the islands of Formosa and Hainan performing
essential and vitally important lifeguard duties. While scouring the
waters for downed aviators and their crews, constant searches were
made to obtain enemy surface contacts. One day a drifting mine was
sighted and sunk with fire from the 20 and 40 millimeter guns.....On
May 17th when out about 15 miles off Hainan, it was decided to in-
vestigate a large single junk. Upon boarding the junk, a crew of 10
males and 2 females were discovered -- all of whom were affable
Chinese. Cigarettes were given the crew and amidst much bowing and
waving, the BUMPER men returned after the Chinese insisted they knew
nothing of Jap ship movements.

The SS 333 continued working up the coast along the Hainan-
Hong route. By May 27th it was decided that this particular area was
now empty and so the patrol was shifted to the northern part of the
area off the China coast. To add to the general annoyance of a

— page 4 —
- 2 - (BUMPER)

fruitless search; the men sweltered three days below decks without any
air-conditioning, until relief came on the 28th. While patrolling 15
miles off Tonkon Point, the "333" blandly sailed along at noontime on
the surface with a [UNCLEAR: alleged] enemy land on either side at ranges of 3 and
8 miles. Demonstrating the relative safety of the waters, a fishing
junk was stopped on the 30th and cigarettes were traded for a basket of
fish.

The last day of May the BUMPER entered a new area, the open
sea south of Swatow, China and at 8:15 p.m. an aircraft was detected
some 8 miles off. Lookouts observed tracer fire which was noticeably
intended for the "333", so she quickly submerged and became aware for
the first time of enemy action. The following day, just about the time
of gathering dusk, another aircraft was contacted and the sub dove to
safety, a crew member commenting: "Not dull around here with these
elevator tactics!"

June 6th the ship was relieved by the USS BUGARA (SS 331)
and was underway for Subic Bay until it became necessary on the next
day to reverse course and meet the USS ICEFISH (SS 367) in order to
take aboard her injured aviators. Unusually heavy seas prohibited any
rescue work so the BUMPER relieved the ICEFISH of lifeguard duty off
the mountain laden island of Formosa. Soon a baby typhoon developed
with sheets of rain and turbulent seas, but the vessel rode the storm
like a veteran and when it subsided she departed for Subic Bay after
being relieved by the USS CARBONERO (SS 337). June 15, 1945 she was
safely in dock at Subic Bay, Luzon, Philippine Islands and repairs
were made on noisy shafts and refitting was performed by the sub
tender USS ANTHEDON and the relief crew of Submarine Division 261.

In reviewing the 55 days of the FIRST War Patrol which was
conducted by 79 men, innumerable Chinese junks and fishing sampans
were contacted; 90 aircraft contacts were made while the ship was on
station and 46 while enroute (majority being friendly craft); and 1
Jap patrol bomber with 2 fighter escorts were encountered.

The BUMPER stood out of Subic Bay on July 10, 1945 for her
SECOND War Patrol which was characterized by the tenaciousness and
fighting spirit with which the ship chased and repeatedly attacked a
convoy. She headed for the Gulf of Siam off Singapore and there, for
the first time, was an enemy target composed of a KAMIKAZE Class
destroyer (built between 1921-1925) and the accompanying convoy of 2
small tankers, 1 very small freighter, and several PC escorts. Re-
peated attacks were made on the Jap destroyer but efficient torpedo
detection and abrupt maneuvering caused all endeavors to be futile.
The USS BRILL (SS 330) and BUGARA, also in the infested area, helped
attack the convoy but had negative results. July 15, 1945 a picture-
type schooner was noticed hugging the coast while apparently south-
bound toward Singapore. All the sails were of new white canvas, the
ship was obviously well cared for, and to offer some mystery she was
not flying any colors. Using guns rather than torpedoes in order to
give any natives a chance to abandon ship, the "333" opened fire at
3,100 yards and in 14 minutes the proud schooner sank like a rock.
The manner in which she plunged to the bottom of the sea indicated

— page 5 —
- 3 - (BUMPER)
that she was carrying an unusually heavy cargo.

The pursuit of the convoy continued and on July 17, 1945 a
coastal tanker came in perfect vision for firing. Torpedoes were set
and the first one released exploded on the beach and about 15 men were
seen running frantically about the decks finally jumping into a small
lifeboat and pulling away from the doomed vessel. Soon thereafter the
torps found their mark and one hit the stern causing a thunderous
explosion, and another clipped the tanker in the middle blowing pieces
of the ship all over the cove. The remains of the craft and her cargo
of oil then broke into a huge, flaming, smoking inferno with black
smoke rising some 1,000 feet in the air. The entire attack was care-
fully recorded by moving pictures which gave vivid portrayals of the
action.

After unsuccessfully chasing the convoy DD again, the
BUMPER on July 20, 1945 had an opportunity to release her fury on
another tanker in the convoy. Firing the last three torpedoes, there
was heard and seen a tell-tale explosion. A tremendous oil slick
followed to the leeward of the tanker so it was concluded that the
cargo was definitely oil. In order to rest all hands who had been in
shooting contact for 14 hours, the submarine then submerged into
peaceful waters.

Before continuing the patrol, the "333" returned to Subic
Bay for a torpedo reload, and after acquiring a comfortable supply of
ammunition, etc., she steamed northward for a search off Singapore,
China and two days patrol in the Java Sea. On the 5th of August at
9:30 a.m., upon being sighted, a tug and barge headed for the beach.
Making a surface attack, the first shot blew the barge to pieces and
3 hits from the 5" gun sunk the tug off Klabat Bay of Bangka Island,
Netherlands Indies. The next victim for the day was discovered at
noon and gunfire this time ceased all activities of a lugger.

With 2525 tons of loot safely on the sea bottom, the BUMPER
sailed into the India Ocean and on to Fremantle, West Australia,
arriving here at 8:00 a.m. August 15, 1945, just one hour after the
Japanese surrender acceptance was announced. Following the joyful
news, the 333 was refitted by the sub tender USS CLYTIE and the
relief crew of Submarine Division 302. For her 37 day patrol she was
authorized the Submarine Combat Insignia.

The last day of August 1945, the BUMPER sailed from Fremantle
with three other submarines and arrived in Subic Bay September 9,
thence becoming a unit of Submarines, Philippine Sea Frontier. The
15th found the "333" peacefully at anchor in Subic Bay, Luzon, P. I.,
with the prevailing topic of conversation being "When do we get home?"
This question was not immediately answered for the ship remained in
the Philippine area for the next few months conducting various type
training exercises and furnishing incidental services where needed.

1946 started with orders for departure so, on January 7th,
the triumphal return was commenced. The great day arrived February 4,
1946 when the BUMPER moored alongside a submarine tender in San Diego,

— page 6 —
- 4 - (BUMPER)

California. Then began the rehabilitation leave by one half of the
crew, and the following month the other members of the crew pursued
the same course. The close of March preparations were made for an
intensive training schedule which was to be conducted during the month
of April. Basic Training continued during April despite demobilization
May 6, 1946 the ship departed for Pearl Harbor arriving May 13th to
take her assigned place in Squadron FIVE, which was permanently based
at the Submarine Base, Pearl Harbor. May and June saw more basic
training, and by the end of the latter month, it but a few Naval
Reservists remaining, the organization had settled down to a fairly
permanent basis. Although at about 75% complement strength, by dint
of extensive independent training, the ship had three sections capable
of handling the ship surfaced and submerged.

By the end of July the BUMPER was off for the States and the
California Mare Island Naval Shipyard where overhaul was conducted
August through October. By the 30th of October, the SS 333 was fully
ready for sea and departed for the U. S. Submarine Base, Pearl Harbor,
arriving November 7. During the month of November the BUMPER parti-
cipated in inter-type exercises with Sub Squadrons ONE and FIVE.

The 16th of December she steamed out of Pearl Harbor for a
simulated war patrol enroute to Tsingtao, China. The equator was
crossed the last of 1946, and it may be long remembered for its
thorough initiation of the crew's 37 lowly "pollywogs". Brief sight-
seeing stops were made at Truk, Caroline Islands; Guam, Marianas
Islands; Yap, Caroline Islands; and Subic Bay, Philippine Islands.
After these interludes, there followed a six week services phase for
the Commander Northern Training Group, Commander Naval Forces, Western
Pacific, at Tsingtao, China, and the Yellow Sea area; a stop of one
week at Yokosuka, Japan; and a short stay at Midway Island, T. H.
Pearl Harbor was entered on March 29, 1947 and here in her home port
she commenced a normal post-patrol upkeep period of two weeks.

By the 16th of April 1947 the ship was ready to begin daily
operations with other units of Submarine Squadron FIVE and ONE. On
the first day of May, the BUMPER in company with the USS BLACKFIN (SS
322), USS TILEFISH (SS 307), and USS CHUB (SS 329), operating as a
wolf pack, departed from Pearl Harbor to intercept Task Force 38.
The attacks underneath of the ships of the task force proved very
satisfactory for the BUMPER. May 12 the "333" and 11 other subs
participated in inter-type exercises and returned to Pearl Harbor on
May 22nd for leave and recreation throughout the month of June.

Commander Severance W. Gavitt, USN, after 12 years of
continuous sea duty, was relieved as commanding officer by Commander
Richard B. Lynch, USN, on July 12, 1947.

During the summer months and until the 30th of September
1947, the vessel was assigned local operations with other submarines
of Submarine Squadron FIVE off the blue waters of Pearl Harbor.
Basic training was continued until December which was spent in leave
and upkeep with approximately one fifth of the crew enjoying
Christmas leave with their families on the mainland.

— page 7 —
- 5 - (BUMPER)

With the advent of the New Year 1948 the BUMPER made ready to
depart from Pearl Harbor and by the 5th of January she was underway
for the San Diego area where she reported January 12th to the
Commander Submarine Squadron THREE for operational control. The
remainder of the month was spent conducting various sonar exercises
with the San Diego Sound School student officers. On February 13, the
ship was off for Treasure Island, California, arriving here the 15th.
After embarking 25 reserve officers and some enlisted men, the SS 333
made ready for a two week annual Naval Reserve cruise in southern
California waters. An intensive training schedule was conducted at
this time which proved of value to both reserves and regulars. The
reserves were returned to Treasure Island February 28, and after
sound tests were made and ammunition loaded, the vessel entered the
Mare Island Naval Shipyard for overhaul on March 1, 1948. The ship
was dry-docked March 12 and remained in this status through the month
of March and April. The overhaul was completed June 1st and the
BUMPER departed for Pearl Harbor on June 5, arriving the 12th of the
month.

After a short upkeep and training period off the U. S.
Island Naval Base, she left this area for a simulated War Patrol in
the Far East. The first port of call was Hong Kong, China, then
came Buckner Bay, Okinawa, where anti-submarine warfare services were
conducted for a two week period under the operational control of the
Commanding Officer of the USS SALISBURY SOUND (AV 13). Similiar
exercises were then conducted off Sasebo, Japan, under the operational
control of Commander Destroyer Division ELEVEN; and off Tsingtao,
China, for a three week period under the operational control of
Commander Task Force SEVENTY-ONE and then off Midway Island.

The BUMPER arrived in Pearl Harbor, still her home port, on
September 29, 1948 and commenced a two week period of leave and upkeep.
During the remainder of 1948, the BUMPER was busy undergoing basic
training with Submarine Squadron FIVE. Navy Day, October 27th, the
ship was open for inspection in Kahului, Maui, T. H., and approximate-
ly 800 visitors came aboard.

When ship assignments were made at the end of the War, the
BUMPER in March 1946 was placed in the U. S. Pacific Fleet of which
she is still an active component.

For her activities in World War II, the "333" is eligible
for one battle star on the Asiatic-Pacific Area Service Ribbon for
the SECOND War Patrol which covered the time from July 10 to August
15, 1945. She earned the Navy Occupation Service Medal for services
during March 10 to 18, 1947. The BUMPER also rates the China Service
Medal for duties rendered January 25, 1947 to March 7, 1947; July 21
to 24, 1948; and August 23 to September 12, 1948.

* * * * *

— page 9 —
[HANDWRITTEN: 10W-A]
SS333/A4
Serial 001
DECLASSIFIED-A-L

U.S.S. BUMPER (SS333)
c/o Fleet Postmaster
San Francisco, Calif.

[HANDWRITTEN: A/6-3(8)]
15 June 1945.

From: Commanding Officer, U.S.S. BUMPER (SS333).
To : Commander in Chief, United States Fleet.
Via : (1) Commander Submarine Division 302.
(2) Commander Submarine Squadron 30.
(3) Commander Task Force 71.

Subject: U.S.S. BUMPER (SS333), 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 northern part of SOUTH CHINA SEA during the period April 22 to
June 15, 1945, is forwarded herewith.

[SIGNATURE: J.W. Williams (faint)]
J.W. WILLIAMS, J.

[STAMP: DECLASSIFIED]

DECLASSIFIED ART. 0445, OPNAVINST 5510.1C
BY [HANDWRITTEN: OP-09B9C] DATE [HANDWRITTEN: 5/25/72]

7 05118

— page 10 —
C-O-N-F-I-D-E-N-T-I-A-L

U.S.S. BUMPER (SS333)

(A) PROLOGUE

The keel of U.S.S. BUMPER was laid at Electric Boat Co., Groton, Connecticut
on November 4, 1944. The ship was launched on August 6, 1944, the sponsor
being Mrs. J.W. Williams, Jr., wife of the Prospective Commanding Officer.
BUMPER was placed in commission at the U.S. Submarine Base, New London, Conn.
on December 9, 1944. Normal post commissioning period was conducted in the
New London area; BUMPER departed for Key West January 21, 1944. On arrival
Key West it was discovered that extensive corrosion existed in the main hy-
draulic system, a result of salt water leaks into the periscope hydraulic
hoisting system. BUMPER returned to Electric Boat Co., New London (with a properly authenticated "Reluctant Dragon" certi-
ficate) for the second time on February 19, stopping over in Key West three
days for special tests. Arrived Panama Area March 4.

BUMPER had five days of training in PANAMA BAY, the equal of which I have
never seen or hope to see again. As reported by other submarines fortunate
enough to receive this training, it is practically a crime that other sub-
marine activities cannot offer the same training opportunities as those ex-
tended to us by Captain J.G. JOHNS. Departed Panama March 15, 1945.

On March 18, 1945 transferred the Executive Officer, Lieutenant Commander
Louis Patrick Gray III, USN, to U.S.S. CREON for medical treatment, prelim-
inary diagnosis ruptured appendix with preliminary peritonitis. The attack
had been sudden, unusual, and devastating. It was with heavy hearts that we
saw him hoisted over the side, for his untiring devotion to the organizati-
and training to make this ship a fighting unit had been without parallel in
my experience. Our first war patrol has been solemnly dedicated to him, and
our prayers are for his recovery.

Arrived Pearl Harbor April 1, 1945. During the voyage repair and trainin
period much fine new equipment was installed, including APR-SPA, TDM, Arma
Course Clock, SJ Club, LORAN, hand speed input to pit log, SJ keying, IFF to
the radars, 20 MM on deck forward and 50 cal. mounts all over the topside.
Lt. R.G. VYVERBERG, USNR, reported aboard as Radar Officer, a welcome addi-
tion to the complement.

Captain E.W. GRENFELL, Administrative Division Commander, and Commander
W.M. BROCKMAN, Training Officer, were most helpful and cooperative during our
period at Pearl, and I desire to officially express my appreciation for their
assistance.

Readiness for sea date: April 22, 1945.

[HANDWRITTEN: 7 05118]

— page 11 —
C-O-N-F-I-D-E-N-T-I-A-L
U.S.S. BUMPER (SS333)
WAR PATROL REPORT #1

Officers and CPO's attached, and number of War Patrols completed prior BUMPER #1.

FILE NO. | RANK | NAME | PATROLS
72337 | Commander, USN | J.W. WILLIAMS, Jr. | 6
97829 | Lieutenant, USNR | F.W. GOOCH, Jr. | 8
109688 | Lieutenant, USNR | R.G. VYVERBERG | 5
123755 | Lieutenant, USN | B. ROBB | 0
293989 | Lieut.(jg), USN | F.A. MORRIS | 3 [HANDWRITTEN: /5] *
299868 | Lieut.(jg), USN | C.L. HUNT | 0
341398 | Ensign, USNR | J.J. MEALY | 0
365349 | Ensign, USN | E.E. BROCKETT | 0
389565 | Ensign, USN | L.F. FITCH xx | 0
406141 | Machinist, USN | M. OFFNER | 2 *

* As enlisted man
xx Reported aboard at Saipan

CTM (PA) | USN | O.P. REIMER | 5
CEM (PA) | USN | J.D. COGGIN | 5
CMOMM(AA) | USN | E.F. NOLAN, Jr. | 3
CMOMM(AA) | USNR | MAYBERRY, C.W. | 5

(B) NARRATIVE,

April 22, 1945
1330 (VW) | Underway from Pearl Harbor for BUMPER NUMBER ONE WAR PATROL. Our
| orders to proceed SAIPAN, and await orders there prior to passing
| to operational control of CTF 71. Escorted by PC 780.

1830 (VW) | Released escort.

2200 (VW) | SJ radar contact bearing 100°(T), range 20,000 yards. Tracked on
| course 260°(T), speed 15. From the size of the pip, lack of any
| radar evidence, it can only be a large merchant vessel. Practically
| zero visibility in heavy rain precludes closing for identification.
| Opened out to the north and continued on.

| Many contacts during the night, mostly showing IFF, none of which
| came near enough to bother us.

-1-

— page 12 —
O-N-F-I-D-E-N-T-I-A-L                                                              U.S.S. BUMPER (SS333)

WAR PATROL REPORT #1

April 23        1200 Posit Lat. 20°-35'N Long. 162°-26'W.
0226            Exchanged SJ signals with PAMPANITO.

April 24        1200 Posit Lat. 20°-35'N Long. 167°-36'W.
April 25        "      "      " 20°-35'N " 173°-43'W
April 26        "      "      " 20°-18'N " 179°-49'E
April 27        "      "      " 20°-01'N " 173°-28'E
April 28        "      "      " 20°-01'N " 173°-28'E
April 29        "      "      " 19°-46'N " 167°-13'E
April 30        "      "      " 19°-31'N " 162°-06'E

May 1           "      "      " 18°-53'N " 156°-37'E
1713            Sighted U.S. submarine on opposite course, probably GURNARD. Unable
                exchange SJ signals.

May 2           1200 Posit Lat. 17°-50'N Long. 151°-19'E
2018            Exchanged SJ signals with BLACKFISH.

May 3           1200 Posit Lat. 17°-00'N Long. 147°-23'E
2130            Passed between SARIGAN and ANATAHAN islands.
2141            SD contact, 5 miles; range opened.

May 4           1200 Posit: SAIPAN.
0705            Rendezvous with LCI 1025 and BURRFISH, proceeding SAIPAN.
1110            Moored alongside U.S.S. ORION, Saipan Harbor. Commenced fueling
                and voyage repairs.

May 5           1200 Posit: SAIPAN.
                Received operation order to proceed vicinity BALAN ISLANDS, then
                report to CTF 71.
1136            Underway from alongside ORION, in company with BURRFISH, escorted
                by LCI 1062.
1615            Released escort. BURRFISH proceeded eastward.
2010            Exchanged SJ signals with friendly submarine, probably BALAO.
2142            Exchanged SJ signals with SENNET.
                Five SD or SJ contacts with friendly aircraft this evening.

May 6           1200 Posit Lat. 15°-27'N Long. 141°-40'E
1554            Eighteen contacts this date with friendly planes.
                Exchanged visual signals with BONEFISH.

May 7           1200 Posit Lat. 18°-39'N Long. 136°-38'E
                Fifteen contacts with friendly aircraft this date.

                                                                -2-

— page 13 —
U.S.S. BUMPER (SS333)
-O-N-F-I-D-E-N-T-I-A-L
AR PATROL REPORT #1

ay 8
1200 Posit Lat. 20°-43'N Long. 131°-21'E
655 Two contacts with friendly aircraft this date.
Sighted a drifting mine. Sank it with 40 MM and 20 MM. Lat. 21°-29'N
Long. 129°-57'E.

ay 9
1200 Posit Lat. 20°-38'N Long. 125°-50'E.
657 Sighted U.S. submarine, exchanged SJ signals with GABILAN. Closed and
300 got the latest dope on China Sea air patrols via megaphone and VHF.
Reported to CTF 71 by radio.

ay 10
1200 Posit Lat. 20°-24'N Long. 121°-52'E
300 Passed through BATAN Island group in order to spend the day in submarine
patrol area. At dawn submerged for close reconnaissance of BATAN Island,
cruising down the west coast at 2000 yards. Someone has done a thorough
job or knocking down the radio towers. Took complete pictures of the
islands. Sighted a camouflaged army truck travelling along the coast
road, resisted the temptation to battle surface on him. Made a two hour
approach on what developed to be the wreck of a small AK aground and
broken in two off northwest corner of IBAHOS island; had high hopes for
awhile. On surfacing at dusk received CTF 71 orders to proceed to
northeast of HAINAN, and the good word that our refit would be in FRE-
MANTLE; many cheers. Set course for HAINAN.

ay 11
207 1200 Posit Lat. 20°-14'N Long. 118°-58'E.
SJ contact on aircraft 12,000 yards. Opened to 16,000. Keyed SD, no
IFF. Range closed to 6 miles. Submerged.
247 Surfaced.
504 APR contact 185 mgs. Saturation keying. Keyed SD, range 7 miles.
Submerged.
508 Surfaced.
727 SD contact 13 miles, no IFF. Sight large plane closing from astern.
Submerged.
759 Surfaced.
330 SD contact 43 miles, showing IFF. Sighted thirty medium bombers when
range closed to 15 miles. Nearest range 7 miles, did not dive.
313 SD contact 14 miles, no IFF. Closed rapidly to 8 miles, not sighted,
Submerged.
127 Surfaced.
428 SD contact 21 miles, no IFF. Closed steadily to 8 miles, not sighted,
Submerged.
300 Surfaced. Remainder of day uneventful surface cruising.
Patrol reports have indicated that this area between LUZON and FORMOSA
was an aviators playground. I believe it now. Probably most all con-
tacts were friendly, but without IFF or communications, think staying up
for those on close contact is foolish.

-3-

— page 14 —
C-O-N-F-I-D-E-N-T-I-A-L
U.S.S. PUMPER (SS333)
WAR PATROL REPORT #1

May 12
    1200 Posit Lat. 19°-56'N Long. 113°-10'E.
         Surface cruising enroute area.
    1200 Entered the area, closing the east coast of HAINAN
    1900 Visual landfall on TAYA ISLANDS, range 18 miles. Rounded the islands
         to the north for patrol off HAINAN STRAIGTHS tomorrow.

May 13
    1200 Posit Lat. 20°-38'N Long. 111°-41'E.
    0235 SJ contact on aircraft 17,000 yards. Keyed SD, range closed to 6
         miles; submerged.
    0333 Surfaced.
         At dawn submerged and conducted patrol off entrance to HAINAN
         STRAIGHTS. Surfaced at dusk and eased along the route towards Hong
         Kong.

May 14
    1200 Posit Lat. 20°-12'N Long. 112°-47'E.
    0500 SJ contact on ST. JOHNS ISLAND. Closed the island, submerged at dawn,
         and conducted submerged patrol along the 20 fathom curve south of ST.
         JOHNS. Sighted one tremendous drifting mine. On surfacing at dusk
         set course for coast of HAINAN.
    2000 APR contact 160 mgs. Probably shore based, faded out as we opened
         beach.

May 15
    1200 Posit Lat. 19°-17'N Long. 111°-24'E.
         Surface patrol off HAINAN coast. Sighted one junk.

May 16
    1200 Posit Lat. 19°-04'N Long. 110°-29'E.
         During the early morning commenced closing the coast for inshore sub-
         merged patrol; ran into large fishing fleet of small junks. Submerged
         at dawn patrolled to the 20 fathom curve; as many as 20 junks in sight
         at one time, ranges down to 350 yards. ST picked them up at 3500 yards
         with 4 feet of scope out! Surfaced at dusk, spent 2½ hours broken
         field running clearing the junks.

May 17
    1200 Posit Lat. 20°-12'N Long. 111°25'E.
         Surface patrol off HAINAN. Closed TAYA ISLANDS to 5 miles; they appear
         barren. Worked up to 15 miles off HAINAN channel buoys. Avoided sev-
         eral quite large junks. After looking at several by high periscope,
         decided to really investigate one closely.
    1600 Picked a large single junk; manned deck armament and closed. He star-
         ted to run for it, but a 5" shot across his bow, and several high 40MM
         bursts changed his mind; he doused sails and hove to. Closed and or-
         dered junk to send their boat to us. Sent over boarding party via
         junks boat. The junk crew of 10 males and 2 females were all affable
         Chinese, one of whom spoke fair English (former HONG KONG tailor). Car-
         go consisted of salt and fish. Gave them a carton of cigarettes, and
         sent them on their way unmolested, amid much bowing, waving, etc. The
         insisted they knew nothing of JAP ship movements.
    1815 SD contact 6 miles, submerged without time for IFF check. Nothing in
         sight by periscope 10 minutes later.
    2000 Surfaced with twenty junks in sight.

-4-

— page 15 —
U.S.S. BUMPER (SS333)
C-O-N-F-I-D-E-N-T-I-A-L
WAR PATROL REPORT #1

May 18
1200 Posit Lat. 19°-21'N Long. 111°-40'E.
Patrolling HAINAN - HONG KONG route,
0000 Sighted a junk fleet.
0416 SJ followed by SD contact on two aircraft, 10 and 20 miles. No IFF,
closing. Submerged.
0447 Surfaced.
0617 Avoided another junk fleet.
1010 SD contact 12 miles, no IFF, closing. Submerged.
1027 Surfaced a little early to copy the 1030 schedule. Called the area scarce
plane, no luck.
1145 SD contact, 8 miles. No IFF. Submerged.
1255 Surfaced.
1524 TDM contact bearing 000° relative. Submerged, Commanding Officer in
conning tower at the time verified contact, record dive, 20 degrees plus
down angle. After leveling off no further contact. Remained submerged in
vicinity until dark. Consider contact doubtful.

May 19
1200 Posit Lat. 18°-33'N Long. 110°-50'E.
Patrolling off HAINAN.
0340 Another similar TDM contact. Submerged. A thorough investigation
brought out that the F.T.R. was building up impulse air both times. Op-
erators identified their contacts as air.
0433 Surfaced.
0930 APR contact 150 mgs, 500 PRR, 8 FW. Keying, getting stronger. Jap
submarine?
1045 Sighted small object by high periscope. Could be submarine with small
angle on bow. Submerged, commenced approach. "Object" finally raised his
junk sail and resumed fishing. Remained submerged, closed TAICHOW island
Surfaced at dusk.
Working up the coast to the HAINAN-HONG KONG route. Aircraft contact
reports have indicated small maru movements in and out of HAINAN channel.
Will work this route for a few days. Our observations and negative air
contacts have shown the coast of HAINAN to be void of traffic.

May 20
1200 Posit Lat. 20°-35'N Long. 111°-22'E.
Surface patrol northeast of HAINAN channel along 20 fathom curve.
1140 Sighted unidentified bomber. Keyed SD, range 16 miles, no IFF. Range
opened, did not dive.
1530 Submerged to avoid detection by a junk fleet that insists on fishing where
we wish to patrol. Surfaced at dusk, many junks still around, maximum
SJ range 15,000 yards.

May 21
1200 Posit Lat. 21°-00'N Long. 111°-20'E.
Patrolling same vicinity. At dawn submerged to avoid detection by junk
fleets, had them in sight all day; at one time being right in the middle
of one fleet of twelve.

May 22
1200 Posit Lat. 20°-44'N Long. 111°-37'E.
Patrolling HAINAN - HONG KONG route. During the early morning had

-5-

— page 16 —
O-N-F-I-D-E-N-T-I-A-L
U.S.S. BUMPER (SS333)
AR PATROL REPORT #1

continuous APR contact 160 mgs, probably shore based. Avoided several
junks. At dawn submerged to keep clear of fishing fleet; at noon all
clear, surfaced, conducted surface patrol. Worked up to northeast corner
of the area, south of ST. JOHNS Island, many junks.

May 23 1200 Posit Lat. 21°-27'N Long. 112°-53'E.
Patrolling the north edge of the area, next to the blind bombinb zone,
along the 20 fathom curve 7 miles south of ST. JOHNS. Have complete
radar coverage to the beach, with a 2000 yds./in homemade chart on the
DRT. If any of those small marus leave HONG KONG for HAINAN, we (and
they) will know it. An unpleasant, rough, raining night chasing down
several 15,000 yard contacts to establish visual identification as just
more junks. Conducted submerged patrol during the day at same location,
only junks sighted.

May 24 1200 Posit Lat. 20°-56'N Long. 112°-43'E.
Offshore surface patrol. At 1215 heard the area search plane call us on
open frequency; we and SEALION next door answered up, but nothing fur-
ther heard from plane. Sighted several junks.

May 25 1200 Posit Lat. 19°-58'N Long. 114°-46'E.
Surface patrol off TAYA Islands.
0630 Routine morning trim dive.
0708 Surfaced. On flooding negative after surfacing the vent valve was left
cracked open, allowing considerable water into the pump room bilges be-
fore it was discovered. The sloshing water grounded out both air condi-
tioning circulating water pump motors, and one air compressor motor.
This casualty was, of course, caused by an inexcusable personnel error,
but the design of the pump room in having the air conditioning C.W. pumps
and motors practically at bilge level is extremely poor.
1005 SD contact 8 miles, no IFF. Closed rapidly to five miles, not sighted,
submerged, remained submerged to work on the grounds.
1600 Surfaced, conducting offshore patrol.
During the evening rounded TAYA islands for patrol off HAINAN channel
tomorrow.

May 26 1200 Posit Lat. 19°-59'N Long. 111°-59'E.
Patrolling off HAINAN channel. Two shore radar stations on 95 and 160
mgs seem to be holding tracking drill.
0103 SJ contact on aircraft, 20,000 yards. Closed on steady bearing to six
miles. Submerged.
0200 Surfaced. Opened out for offshore day patrol.
1300 Sighted PRIVATEER search plane at miles. Established VHF communications.
SD finally got him at two miles! He has seen nothing in his search today.
Requested him to pass the word to his outfit to please use their IFF in
the area. This is our first contact in nine with whom we have been able
to establish communications.

-6-

— page 17 —
-O-N-F-I-D-E-N-T-I-A-L
                                                                U.S.S. BUMPER (SS333)
                                                                AR PATROL REPORT #1

1600          Received information despatch concerning missing PBM, possibly in this
              area. Our unidentified airman of this morning must have been flying un-
              usually low, and was headed for TAYA islands as well as at us. Decided
              to give the island a lookover for any signs of plane. Too late to do it
              submerged, so closed on the surface to 5000 yards. No sign of life.
              Returned SD, it was apparently badly out of tune. Opened out for night
              patrol off coast.

May 27        1200 Posit Lat. 19°-38'N Long. 111°-24'E.
              Patrolling off HAINAN. Gunnery Officer on deck working on 5" gun. SD
              contact two miles. By the time the GO got started the range had opened
              to three miles, and continued out. Did not dive. Radio tech starting
              work on SD. Headed for TAYA "SD returning" island.
0943          SD contact 23 miles. New tubes did the job. No IFF. Sighted PRIVATEER
              search plane when range closed to 7 miles. Trying to establish VHF no
              luck. Commanding Officer took VHF made insinuation concerning pilots
              parental legitimacy; he came right in after that! Plane agreed to make
              swoop of the coast, return and notify us of results. The submarine-air-
              craft team is finally working.
1245          Search plane returned, reported results of search negative. We also had
              a conference on plane nil use of IFF in this area - he claimed they
              don't use it to avoid giving away their presence. Told him how that of-
              fected us, and he promised to pass the word around. Also suggested clo-
              ser cooperation between planes and submarines in area search, mainly by
              trying harder to establish communication in the area.
              Although todays actual results have been negative (as usual) this is
              the way the team should work. Hope we can keep it up.
              Since this part of the area is now known empty today, shifted patrol
              to northern part of area, making a sweep off the China Coast.

May 28        1200 Posit Lat. 20°-14'N Long. 111°-47'E.
              Surface patrol northeast of TAYA islands.
0630          After three days of no air conditioning, finally got both sets going
              again. With the latitude equalling the suns declination is no time for
              loss of air conditioning; it has been a miserable three days below decks.
              Both C.W. pump armatures were hopelessly grounded out. The BUMPER pipe-
              fitters stole a main engine shut down pump and motor and piped it into
              the air conditioning plants. Nice job. The air compressor is also back
              in commission after considerable work.
1145          Established communication on area frequency with search plane. He re-
              quested we maintain watch on that frequency (which we always do) but it
              indicates the word is getting around, and that we are making progress
              toward proper coordination.

                                                                -7-

— page 18 —
C-O-N-F-I-D-E-N-T-I-A-L
U.S.S. BUMPER (SS333)
WAR PATROL REPORT #1

1445 SD contact at 23 miles; search plane at this time reported negative results
     via area frequency. Faded out at 26 miles.
     Three days in a row that the team is working!
1500 Shifted patrol to the 20 fathom curve ten miles off HAINAN STRAIGHT en-
     trance buoys, patrolled across the entrance during the afternoon and
     evening.

May 29 1200 Posit Lat. 19°-52'N Long. 111°-19'E.
     Surface patrol off HAINAN STRAIGHTS entrance.
0500 Headed for TONKON POINT, where the planes landfall.
1004 SD contact 18 miles, closed to 15 least range. No IFF, but probably our
     search plane coming in. We weren't quite to TONKON.
1345 SD contact 17 miles. Sighted PRIVATEER at 9 miles, and our daily chat via
     VHF; his only contact today was small craft at KAUCHENG harbor, thirty
     miles inside the blind bombing zone.
     We are getting quite friendly with the aviators now, and though we
     aren't sinking anything, the system is working, if that is any consolation.

May 30 1200 Posit Lat. 19°-53'N Long. 111°-09'E.
     Surface patrol off HAINAN.
0600 On "station" 15 miles off TONKON POINT, waiting for our high priced and
     efficient searcher.
1005 Established communication with him via area frequency; not sighted.
1128 While making a surface sweep between TAYA islands and HAINAN sighted a
     LIBERATOR patrolling the coast. No signs of the missing FBM on any of the
     TAYAS.
1240 Sighted the LIBERATOR homeward bound. Had been listening on both recco
     and area frequency but heard nothing; guess he sighted nothing as usual.
1400 Sweep completed. The war has gone a long way when we can blandly steam
     along at noontime on the surface with enemy (?) occupied land on either
     side at ranges of 3 and 8 miles.
     Set course to cross the area, enroute to the new area assigned south
     of SWATOW. In these last five days we have proved that mutual coopera-
     tion with search planes is possible if both sides try, and you can get the
     system working. Only thing wrong with this picture is no targets.
1600 Stopped a lone fishing junk, and via junks boat exchanged cigarettes for
     a basket of fish.

May 31 1200 Posit Lat. 20°-46'N Long. 114°-51'E.
     Enroute new area.
1623 SD contact 18 miles, sighted LIBERATOR at 15 miles. IFF response, but no
     other communication possible. Tried out the smoke maker we had just com-
     pleted (injecting fuel oil into the exhaust) but not very effective.
1800 Entered new area, the open sea south of SWATOW.

-8-

— page 19 —
C-O-N-F-I-D-E-N-T-I-A-L
U.S.S. BUMPER (SS333)
AR PATROL REPORT #1

2015 In the gathering dusk SD followed by SJ contact on aircraft at 8 miles.
     Range closed a little, started to open, then closed rapidly. Commanding
     Officer-of-the-Deck and lookouts all observed tracer fire at us
     from the planes bow. The range was still 7 miles, indicating he had
     no idea as to the range, or he was warming up the guns, however, we
     didn't hesitate, at
2019 QUICK dive. Our first enemy action. 2145 Surfaced.
2215 APR contact 180 mgs; saturation.
2251 SD and SJ contact on aircraft. Tracked two JAP aircraft going SE, clos-
     ing range nine miles. Saturation APR throughout.
2315 All clear on radars; but still have APR contact getting stronger.
2341 With saturation 180 mgs. on IR at 4/10 gain setting, keyed SD contact
     at 7 miles, closing; submerged.

June 1
1200 Posit Lat. 21°-21'N Long. 116°-17'E.
0123 Surfaced, all clear.
0200 Sent our despatch requesting a shooting area for the remainder of the
     patrol. The despatch, written yesterday afternoon, indicated no enemy
     activity; a little previous?
0340 SD and SJ contact on aircraft 8 miles, closing. No IFF or APR. Sub-
     merged. Will stay down until sunrise.
0648 Surfaced.
1207 Visual, then radar contact on two unidentified bombers, no IFF, least
     range 10 miles, did not dive.
1408 Radar contact on aircraft, 12 miles. Closest range 10 miles, not sight-
     ed, no IFF, did not dive.
2013 In the gathering dusk again, SJ contact on aircraft closing fast; sub-
     merged fast to avoid last nights thrill.
2200 Surfaced.
2202 SJ contact on aircraft 20,000 yards; opened.
2237 APR contact on 180 mgs, steady saturation. From this time on had the
     APR contact, SJ and SD contacts on various aircraft at various ranges,
     until at
2320 Submerged with the closest range 5 miles, still closing.

June 2
1200 Posit Lat. 21°-14'N Long. 117°-01'E.
0054 Surfaced, all clear on everything.
0130 Decoded answer to our request for a shooting area, remainder of patrol
     is to be lifeguard duty. At least it isn't going to be dull if these
     elevator tactics keep up.
0931 SD contact 7 miles, closing, no IFF, not sighted; submerged.
1043 Surfaced.
1245 Sighted unidentified aircraft closing; submerged.
1325 Surfaced.
1400 Sighted aircraft, range 15 miles, opening.

-9-

— page 20 —
C-O-N-F-D-E-N-T-I-A-L
U.S.S. BUMPER (SS333)
WAR PATROL REPORT #1

1406 SD contact at 10 miles, no IFF. Sighted this one at 7 miles, a PRIVA-
     TEER. Tried VHF, ABK, BN, APR, signal parachute flare, searchlight - no
     luck. He passed at five miles, blissfully unaware or unconcerned. An
     trying to make friends in this area as in the last, but not getting very
     far.
1614 TDM contact 355 R. Submerged, no further contact; considered doubtful.
1717 Surfaced, cleared the vicinity.
     Shifted patrol for the evening to 15 miles SW OF FRATAS island. This
     is a few miles outside LEGJOINT, but still in DESTROY. If we can spend
     the nights on the surface here we are fulfilling our lifeguard job bet-
     ter than being a few miles in the area and spending half the night sub-
     merged. It turned out to be a good hunch, spent a contactless night.
     Will continue to do this as long as it works.

June 3 1200 Posit Lat. 20°-50'N Long. 116°-18'E.
0300 Headed up for the point where we saw the PRIVATEER yesterday. Will try
     to find their traffic route and stick on it during the day.
0450 SJ contact on aircraft, 15,000 yards. No IFF, closed rapidly to 9,000
     yards; submerged.
0553 Surfaced.
0836 Sighted aircraft, SD at 12 miles. Tried again to establish communica-
     tions, but no luck. Looked like a B-26, not positive. With him still
     in sight, going away.
0855 SD contact 17 miles, closing. At 10 miles sighted what I thought was
     a PBY at first, but then sighted two small fighters with him. At 7
     miles they all three did wingovers toward us. No IFF, no VHF, range 6
     miles, and a firm conviction they were JAPS, at
0900 Submerged.
     Looks like the NIPS are sending out patrol planes with fighter cover
     to protect them from our search planes. This isn't going to be so good,
     if we have to stay down all day, and half the nights, too.
1106 SD sweep at 52', contact at 2 1/2 miles; deep again.
1343 Surfaced. Commenced moving down to lasts night quiet zone.
2223 SJ contact on aircraft 15,000 yards. Closed rapidly on steady bearing
     to 4 miles; submerged. No IFF or APR on that one.
2329 Surfaced; he was probably friendly, and I for one am getting fed up with
     furnishing them with dummy run drills.

June 4 1200 Posit Lat. 20°-41'N Long. 116°-11'E.
0105 SD contact 32 miles; least range 29 miles.
0741 SD contact 28 miles; least range 10 miles; IFF.
0839 SD contact 9 miles; least range 7 miles; sighted PRIVATEER, no communi-
     cations.
0945 SD contact 25 miles; least range 8 miles, sighted PRIVATEER, no communi-
     cations.
1040 Sighted PRIVATEER, 5 miles, no communications.
1227 SD contact 32 miles; least range 30 miles.
2202 SJ contact on aircraft range 15,000. Tracked him across the stern,
     least range 4 1/2 miles. No IFF, APR or VHF.

-10-

— page 21 —
C-O-N-F-I-D-E-N-T-I-A-L
                                                                U.S.S. BUMPER (SS333)
WAR PATROL REPORT #1

June 5
1200 Posit Lat. 21°-40'N Long. 116°-30'E.
0750        SD contact 24 miles; least range 20 miles.
0812        SD contact 16 miles; least range 14 miles.
1207        Sighted, exchanged SJ signals, closed and spoke ICEFISH by VHF.

June 6
1200 Posit Lat. 21°-27'N Long. 117°-01'E.
0750        SD contact 24 miles; least range 20 miles.
1050        SD contact 20 miles; least range 18 miles.
1159        SD contact 28 miles; least range 14 miles.
1300        Contacted BUGARA via area frequency, arranged for rendezvous for
            relieving tonight.
1920        Lookout sighted probable periscope dead ahead, range about 1000 yds;
            verified by O.D. and J.O.O.D. Submerged. Commanding Officer got a
            quick look by periscope on the way down; I saw enough to order deep
            depth. No sound contact; at periscope depth about 5 minutes later
            nothing in sight. I consider this contact probable, for if it had
            been a stick or branch (and we have seen several in this area), I
            think it would have been sighted on returning to periscope depth.
            Maintained sound watch on both heads and JP, a dark a watch on ST.
            Nothing further heard or seen.
2112        Surfaced, no contact. Proceeded to rendezvous point with BUGARA.
2218        Heard aircraft on VHF. Exchanged calls and information with night
            search aircraft, SJ range 6 miles. This is our first aircraft con-
            tact in this area with whom we have had communications; it shows it
            can be done if both sides work at it.
2230        Rendezvoused with BUGARA, our relief. She gave us mail to take back
            for her, and we gave her all the dope we could on the area.
2308        Underway for SUBIC in accordance with despatch instructions.

June 7
1200 Posit Lat. 18°-28'N Long. 118°-28'E.
            Enroute SUBIC.
0939        SD contact 23 miles; least range 7½ miles. No IFF or VHF.
1145        Sighted aircraft 15 miles; least range 10 miles.
1410        SD contact 12 miles, closing rapidly. At nine miles sighted a two
            engine bomber, angle on the bow zero. No IFF or VHF. With range 3½
            miles, still zero angle on the bow, fired recognition bomb and
            submerged. If he was an allied aircraft his actions were anything but
            friendly. Won't they ever learn?
1414        Surfaced with a PRIVATEER in sight at 15 miles, going away.
1500        Reversed course; heading back for rendezvous with ICEFISH to take
            aboard her injured aviators. We almost made it!
1825        SD contact 19 miles; least range 15 miles.
2129        SD contact 28 miles; least range 29 miles.
2315        SD contact 33 miles; least range 31 miles.

                                                                -11-

— page 22 —
CONFIDENTIAL
U.S.S. BUMPER (SS332)
PATROL REPORT #1

June 8
1200 Posit Lat. 20°-15'N Long. 119°-19'E.
Enroute rendezvous with ICEFISH, seas becoming very heavy.
0758 SD contact 12 miles; least range 9 miles.
1023 SD contact 28 miles; least range 21 miles.
1330 Rendezvous with ICEFISH. The seas were such that transfer of any per-
sonnel was out of the question. Impossible therefore to transfer the
injured aviators, so in accordance with CTF 71 despatch directive BUMPER
relieved ICEFISH of lifeguard duty off SW FORMOSA. Got all the dope
possible. Captain Peterson was most helpful and apologetic about it all.
1644 ICEFISH departed for SUBIC to take back the aviators. BUMPER set course
for lifeguard station. Guess we rate an upside down star on our reluc-
tant dragon certificate for this.
1935 SD contact 20 miles; least range 11 miles.
2000 SD contact 22 miles; least range 18 miles.
2044 SD contact 17 miles; least range 14 miles.
2117 SJ contact on aircraft 15,000 yards. Closing rapidly, no IFF, VHF or
AFR; just plain closing. With range 4 miles, still coming, at
2119 Submerged. Guess they won't learn.
2208 Surfaced.

June 9
1200 Posit Lat. 21°-53'N Long. 119°-51'E.
Lifeguard patrol off SW FORMOSA. The strike today was cancelled un-
doubtedly because of the near typhoon weather. Will remain on surface,
off shore, in order to keep posted by radio.
0825 SD contact 28 miles; least range 28 miles.
0947 SD contact 15 miles; least range 8 miles. IFF!
1158 AFR contact on 100 and 156 mgs. Continued to have these two shore radar
stations practically continuously night and day for the remainder of the
time in the area. No further mention of them is made in this narrative.
1414 SD contact 19 miles. Sighted large plane, zero angle on the bow, at
12 miles. No IFF, VHF, or AFR. With range 6 miles, still zero angle on
the bow, at
1418 Submerged. Just as the diving alarm was sounded contacted him by VHF.
Leveled off at periscope depth, identified him as a PRIVATEER, and at
1422 Surfaced to have it out with him over the VHF. Would much prefer it be-
hind the barn! Tried to get the idea across to him that by such actions
he was only harming the aviators, in that a lifeguard submarine submerged
is of no value in picking up ditched aviators through lack of radio in-
formation. He apologized, saying that he hadn't seen us until just be-
fore we dove!
1444 Sighted another PRIVATEER, range 20 miles; least range 15 miles.

-12-

— page 23 —
U.S.S. BUMPER (SS333)
C-O-N-F-I-D-E-N-T-I-A-L
AR PATROL REPORT #1

June 10
1200 Posit Lat. 22°-07'N Long. 119°-16'E.
     Surface patrol off SW FORMOSA. The strike for today was again cancelled
     the weather still verging on typhoon weather. Will remain off shore on
     the surface.
1336 SD contact 14 miles; least range 12 miles.
0809 SD contact 9 miles; least range 8 miles. Sighted PRIVATEER, and es-
     tablished VHF communications! Wonder of wonders. He has had no con-
     tacts.
0859 SD contact 17 miles; least range 15 miles.
0918 SD contact 20 miles; least range 16 miles.
1337 SD contact 24 miles, closing.
1343 SD contact 12 miles, closing. Now have two planes, both closing. Wea-
     ther terrible, heavy rain and mountainous seas, low overcast, visibil-
     ity 3000 yards. No IFF, VHF, or APR on those gents. With ranges 6 and
     8 miles, still closing, slow diving weather, at
1348 Made our 26th dive for unidentified aircraft.
1400 The special lifeguard radio schedule is due, and too soon to sur-
     face, too rough to maintain SD depth for listening, and too soon to sur-
     face in this visibility, just in case they were JAPS. Although there
     was no strike today, and there is probably no special dope on the
     lifeguard schedule; this is a perfect example of how the aviators (for
     I have little doubt that we dove for our own aircraft) are working to
     defeat themselves. Went to the afternoon movies.
515 Surfaced, in a young but healthy typhoon.

June 11
1200 Posit Lat. 21°-52'N Long. 120°-08'E.
     Surface patrol of S.W. FORMOSA. No strike scheduled today - the
     typhoon is still going strong; mountainous seas, and the heaviest rains
     I've ever seen.
0759 SD contact 15 miles; least range 13 miles. IFF!
0808 SD contact 17 miles; least range 8 miles. Established VHF communica-
     tions with search plane!
1314 SD contact 11 miles; least range 8 miles. Again established VHF with
     search plane!
2109 APR contact 180 mgs, the JAP plane radar. Lasted for short while only.

June 12
1200 Posit Lat. 21°-42'N Long. 119°-57'E.
     Same as yesterday, except by noon the weather had cleared somewhat
     No strike scheduled.
0742 SD contact 29 miles. Established VHF with search plane at 22 miles!
     Looks like the word is getting around that we like to use the VHF.
1447 SD contact 22 miles. At 18 miles sighted four engine bomber, angle
     on bow zero. No IFF, APR and no response to pleas via VHF all the way
     in. At 8 miles fired recognition bomb, another again at 7, and again
     at 6. No change angle on bow. Range 5½ miles, at

-13-

— page 24 —
U.S.S. BUMPER (SS333)
C-O-N-F-I-D-E-N-T-I-A-L
WAR PATROL REPORT #1

1504 Submerged. As the scope went under I definitely identified him as a
     single, twin tail B-24, still coming over; just when I was beginning
     to think the recognition problem was clearing up in this area!
1655 Surfaced.
1800 Called the Army Air Base on lifeguard frequency and reported above in-
     cident.
2215 SD contact 31 miles; least range 6 miles.

June 13 1200 Posit Lat. 21°-49N Long. 120°-18E.
          Patrol off S.W. FORMOSA. We are due to be relieved by CARBONERO
          today, and a strike is scheduled for 0930.
0302 SD contact 10 miles; least range 9 miles.
0552 Rendezvous with CARBONERO. As it is too late to start for SUBIC to make
     it dawn of the 14th, suggested that we both take the lifeguard station
     today. After fighting the weather and unidentified planes for four
     days, we wanted to see what a strike looked like and also if any one goes
     down today we could give them a quick ride home. CARBONERO agreed to
     above plan. Gave him all the dope we could on the area.
0900 On lifeguard station. About 25 B-24's formed up and headed for FORMOSA.
     Our own plane cover was a little mixed up, but eventually we had a B-17
     and three fighters orbiting us. Felt like a real task force.
1237 Strike completed. Planes headed home; apparently no planes in trouble.
     Wished the CARBONERO good luck, and took departure for SUBIC. Several
     stragglers passed over in the next two hours, none in trouble.
2008 SD contact 18 miles, least range 8 miles.

June 14 1200 Posit Lat. 17°-17'.5N Long. 118°-30'.8E.
0645 SD contact 29 miles; least range 32 miles.
0710 SD contact 14 miles; least range 5 miles. VHF.
0818 SD contact 18 miles; least range 4 miles.
1204 SD contact 21 miles; least range 20 miles.
1438 SD contact 19 miles; least range 15 miles.
1607 SD contact 27 miles; least range 4 miles. IFF.

June 15
0530 Rendezvous with USS ROLF, escort.
0930 Entered SUBIC BAY for refit.

-14-

— page 25 —
U.S.S. BUMPER (SS333)
C-O-N-F-I-D-E-N-T-I-A-L

C. WEATHER

The weather in the area east of HAINAN was mild with winds and seas in general
from southwest. In the area southwest of FORMOSA a typhoon was encountered with
winds up to 40 knots and swells of 40 feet.

D. TIDAL INFORMATION

The tides and currents follow that given by the charts and tide and current
tables. In the area east of HAINAN there was in general a set from 030°(T)
to 060°(T) and drift of .6 to .8 knot. In the area southwest of FORMOSA the
currents were variable. Within thirty miles of the coast a set of 065°(T)
drift .9 knot was experienced while farther westward the set was northwest
about .6 knot.

E. NAVIGATIONAL AIDS

No Navigational aids were sighted.

F. SHIP CONTACTS

There were no ship contacts except innumerable Chinese junks and fishing
sampans.

G. AIRCRAFT CONTACTS

A total of 90 aircraft contacts while on station (exclusive of the one strafe
witnessed) and 46 enroute to and from station were made. The vast majority
were of course allied aircraft. In one case a JAP patrol bomber with two
fighter escorts was encountered. Night flying JAPS used 180 mgs radar, but
were very ineffective.

H. ATTACK DATA

No Attacks.

I. MINES

Two drifting mines sighted:
#1 Lat. 21°-29'N Long. 129°-57'E (Sunk)
#2 Lat. 20°-12'N Long. 112°-47'E (Observed while submerged)

J. ANTI-SUBMARINE MEASURES

No surface craft were encountered. JAP night flying aircraft with 180 mgs
radar were encountered in the area south of SWATOW but were surprisingly
ineffective. In spite of our use of SJ continuously at night, continuous
in the daytime and keyed at night, no evidence of counter measures were seen
other than a few nuisance dives made necessary. There was no tenacity to
their night searches. One plane tried to strafe us just at dusk, SD ran
7 miles!

-15-

— page 26 —
C-O-N-F-I-D-E-N-T-I-A-L
U.S.S. BUMPER (SS333)

K. (a) HULL AND MACHINERY

    On the initial deep'dive of the ship, water was taken into the hydraulic
    system through #2 periscope hoist cylinder caps, then into the main hydraulic
    system by being forced by the piston when the scope was raised. The cause of
    the leak was remedied by silver soldering the hoist cylinder and the
    hydraulic system flushed as much as possible without disassembling any of the
    units. At a later date excessive corrosion of various hydraulic pistons and
    control valves necessitated the disassembly of most of the hydraulic operating
    units for inspection and either cleaning or renewal and a thorough flushing of
    the entire system.

    At this time while completing an alteration to the vent and overflow lines
    on the periscope hoist some small metal filings and chips were washed over
    into the hoist cylinder of #2 periscope. These became embedded in the packing
    around the hoist piston causing a leak-by. Though the packing rings have been
    renewed three times, the leak-by continues after a week or so of operation
    with the new rings. When the rings are removed and inspected they are either
    cut or badly nicked. It is believed the cylinder walls are scored and on the
    first refit the cylinders must be removed, inspected and renewed if necessary.

Casualties During Shakedown-Training Period - December 9, 1944 to April 22, 1945:

    January 12, 1945: On diving, when shifting from one generator combination to
    battery motor, battery motor contactors #29 and #30 arced across. Control
    cubicle was immediately de-energized and CO2 extinguishers used. Contactor
    supports and contactor blocks were melted and spewed to contactors below and
    throughout forward end of cubicle. Entire forward section of cubicle inside
    was coated as result of burning copper fumes. Contactors #29 and #30 were
    isolated from cubicle with rubber sheeting. G.E. representatives at Electric
    Boat Co. renewed #29 and #30 contactors and replaced same with new ones. From
    inspection it appeared as though a foreign metal object had crossed the contac-
    tor pads. However, the Naval Inspector at E.B. Co. stated it was caused by
    faulty insulation of supports.

    December 9, 1944 - April 22, 1945:

    During this period eleven main engine cylinder liners cracked. Seven of which
    were on #4 main engine, believed caused by flooding.

    April 7, 1945:

    Renewed piston and connecting rod assembly unit #13 - #4 main engine. Reason:
    broken wrist pin (#3246624) and badly wiped full floating connecting rod bush-
    ing (#3249278). Caused by lack of locking pin (#2241001) which allowed bush-
    ing to turn off and cut off oil passage. Modification in subsequent 278-A
    calls for two locking pins (#2241001). Our on board spares contain two lock-
    ing pins and have been installed in two units, leaving sixty-two (62) remain-
    ing units to be modified. This will be done at the earliest opportunity.
    Hours in use: 886.

-16-

— page 27 —
U.S.S. BUMPER (SS333)
C-O-N-F-I-D-E-N-T-I-A-L
Casualties During Patrol Period - April 22, 1945 to June 12, 1945:

    April 22, 1945 - June 12, 1945:
        During subject period four cylinder liners were found cracked. Loosened
        cylinder studs #4 main engine in an attempt to determine whether excessive
        pressure is the cause of liner failures.

    May 25, 1945:
        #1 and #2 air conditioning circulating water pump motors flooded with salt
        water from negative tank vent. Attempts to bake out and clear armatures
        failed. Substituted shut-down pumps and motor from #2 main engine.

K. (b) ORDNANCE AND GUNNERY
    Within recent months the breech operating action of the 5"/25 gun on
    counter recoil has not been satisfactory. The trouble first developed
    after a total of 50 rounds had been fired. During a 20 round practice
    held off Panama March 9, 1945, the plug did not drop upon counter recoil
    for the last 17 rounds and the breech was operated by hand. Plug and cam
    plate assembly were broken down and inspected and no irregularities noted.
    After reassembly the gun was run in with chain falls and breech operation
    was satisfactory. Upon subsequent firing the breech block was failed to
    drop approximately 50% of the time. The cam spring was renewed at Pearl
    Harbor during April with no subsequent improvement noted. The gun is as-
    sembled with housing number 11129 to which ORDALT 2052 is not applicable.

    The Mark 1 bridge signal ejector proved very satisfactory after a rigid
    cleaning routine was established. It is believed that this is the best
    means now available to identify the submarine to aircraft. It is recom-
    mended that the allowance of signals be increased to 24 of each color.

L. RADIO - No Casualties.

M. RADAR
    SJ/ST Radar:
        The performance of the SJ and ST radar was, on the whole, excellent.
        Ranges on Junks, the only ship contacts, were from 6000-15000 yards on the
        SJ and from 3000 to 8000 on the ST with six feet of periscope exposed. SJ
        land contacts were obtained up to 140,000 yards, planes from 15000 to 40000
        yards. Except for routine troubles, such as normal tube failures and

-17-

— page 28 —
C-O-N-F-I-D-E-N-T-I-A-L
U.S.S. BUMPER (SS333)

routine tune-ups, there were few casualties.
Those in the SJ were:
(1) The training system is very poor. The gear-box which shifts from
power to hand has caused considerable trouble. It is an inherently faulty
design. At times it is almost impossible to shift from power to hand.
When shifted, it is very hard to train. The gear box was worked on
while at Saipan, but the repairs were only temporary. By the time we
started giving trouble again (almost as soon as Saipan was out of sight.
The subject of SJ training should be brought very strongly to BuShips
attention and a really satisfactory solution worked out. There have been
so many different methods of training the SJ that a good answer to the
problem would have been universally adapted.

(2) Whenever the SJ or the ST was keyed (cw) for any period of time,
the insulating insulators on the high voltage leads from the HV tubes to the
HV transformer would break down, causing a short to ground and blowing
fuses. After running out of replacements for these insulators they were
replaced with the porcelain portion of two small spark plugs. This proved
completely satisfactory.

(3) On 19 May one of the high voltages rectifier tubes (836) shorted
from cathode to plate, drawing excess current through the HV variac,
burning up about forty turns on the variac before the fuses blew. An
investigation of both SJ and SD spare parts lists revealed that these
variacs are only tender spares. The next step was to cut out the burned
out turns, and only utilize part of the variac. It worked well as if all
the turns were there.

The only casualty in the ST was fortunately discovered before arrival
at Saipan. The periscope adapter was imperfectly gasketed where it
joined the periscope, which allowed water to enter the adapter and fill up
the wave guide, making it impossible to tune or to receive echoes. At
Saipan it was removed, cleaned and reinstalled and the joints properly
sealed.

SD-5 Radar
The SD-5 radar proved to be a most capable radar in picking up planes
even low flying ones. Planes were picked up at ranges from 5 to 40 miles.
Constant attention, however, is required to keep the SD tuned.
The only trouble encountered was a drifting of the local oscillator
in the receiver unit, which was remedied by replacing the local oscill-
ator and R.F. tubes.

After two years of "swearing at" the SD radar, it is a joy and a
pleasure to have one that is "sworn-by".

-18-

— page 29 —
U.S.S. BUMPER (SS333)

C-O-N-F-I-D-E-N-T-I-A-L
WAR PATROL REPORT #1

N. SONAR GEAR AND SOUND CONDITIONS

    (A) Sound conditions in the area appeared to be from fair to good both on
        Sonic and Supersonic equipment. A complete lack of contacts made it
        impossible to observe listening ranges.

    (B) Troubles Encountered:
        JK-QC Gear:
            The bearing in the motor end of the JK-QC training motor-generator
            has at least one flat spot, causing considerable noise in the motor gen-
            erator.
            At deep submergence there is considerable noise in the holding-down
            bearing of the sound shaft. This trouble occurs in the QB sl ft.

        QB gear, with TDM:
            The TDM chemical recorder has been a constant source of trouble. The
            Keying switch on the sound shaft was repaired and replaced approximately
            once or twice each day while the TDM was running continuously. After
            running out of spare parts, new and ingenious ideas were used until even
            the inventor wouldn't recognize it. The TDM is however, a valuable piece
            of equipment.

O. DENSITY LAYERS

    The following density layers were obtained:
    Date        Lat.            Long.           Layer Depth     Remarks

    5-25-45     19°-55'.5N      111°-46'.2E     60 ft.          5 degree temperature
                                                                change for increased
                                                                depth of 100 ft.

    5-31-45     21°-04'N        116°-22'E       90 ft.          13 degree temperature
                                                                change for increased
                                                                depth of 200 ft.

    6-3-45      20°-11'N        116°-17'E       60 ft.          14 degree temperature
                                                                change for increased
                                                                depth of 240 ft.

    6-7-45      17°-55'.9 N     118°-29'.2E     6 ft.           12 degree temperature
                                                                change for increased
                                                                depth of 200 ft.

                                                -19-

— page 30 —
C-O-N-F-I-D-E-N-T-I-A-L
                                                                U.S.S. BUMPER (SS333)

WAR PATROL REPORT #1

P. The health of the Officers and crew was excellent. The variety of provisions
   from Pearl Harbor Commissary was good. The large amount and variety of fresh
   frozen vegetables was enjoyed by all hands, though fresh frozen fruits were
   unobtainable.

Q. PERSONNEL

   (a) First War Patrol.
   (b) 79 men on board during patrol.
   (c) 42 men qualified at start of patrol, 24 of those in Fleet Boats.
   (d) 24 men qualified at end of patrol.
   (e) 37 men unqualified making their first patrol.
   (f) 13 men advanced in rating.

   GENERAL COMMENT: The performance of duty of all hands was in general
                      excellent. Our training program in submarines is believed
                      very good.

R. MILES STEAMED:                                               FUEL USED:

   Pearl Harbor to area 6203 mi. 76,350 gal.
   In Area          4918 mi. 42,350 gal.
   Area to Subic Bay  1081 mi. 11,300 gal.

S. Duration of patrol 55 days
   Days enroute to area 20
   Days in area      31
   Days enroute to base 4
   Days submerged     5

T. FACTORS OF ENDURANCE REMAINING:

   TORPEDOES                                  FUEL           PROVISIONS     PERSONNEL FACTOR

   22 and 43                                  40,000 gal.    15             10

   Limiting factor this patrol CTF 71 Orders.

                                                                -20-

— page 31 —
C-O-N-F-I-D-E-N-T-I-A-L                               U.S.S. BUMPER (SS333)

WAR PATROL REPORT #1

U. RADAR COUNTER MEASURES

      Time and         Frequency     Pulse Rep.    Pulse Width
      Location         (mcs)         Rate (p/s)    (micro-sec.)    Remarks.

1.    0500(I)          186           low           10              Plane contact, SD,
      5-11-45                                                      7 mile

2.    2100(I)          160           500           3-4             Rotating about 4
      5-14-45                                                      RPM, believed to
      20-16N                                                       be shore based
      112-47E

3.    0000(I)          106           750           10              Rotating about 6-8
      5-15-45                                                      RPM, believed to
      20-44N                                                       be shore based
      112-24E

4.    2200(I)          152           600           7               Very faint, unable
      5-19-45                                                      to determine rota-
      18-29N                                                       tional speed.
      110-55E

5.    2145 (I)         160           500           3-4             Probably same as
      5-21-45                                                      (2) above
      20-44N
      111-27E

6.    2145 (I)         160           500           3-4             Probably same as
      5-24-45                                                      (3) above, it was
      20-28N                                                       noted that (2), (5),
      111-14E                                                      and (6) came on at
                                                                   about the same time
                                                                   and lasted for
                                                                   about fifteen min.
                                                                   then were turned
                                                                   off for the rest
                                                                   of the night.

7.    2300 (I)         99            500           25-30           Unable to get ro-
      5-25-45                                                      tational speed,
      20-32N                                                       seemed to be in-
      111-12E                                                      termittent.

8.    1130 (I)         110           500-600       30              Very infrequently
      5-26-45                                                      intermittent with
      20-02N                                                       above contact.
      111-51E

                                     -21-

— page 32 —
-O-N-F-I-D-E-N-T-I-A-L
VAR PATROL REPORT #1

U.S.S. BUMPER (SS333)

0. 0245 (I)
   5-27-45
   19-22N
   111-19E                               250           500-600     5-6     Unable to determine
                                                                           rotation, only heard
                                                                           for a few minutes

0. 2215 (I)
   5-31-45
   20-55N
   116-11E                               180           250         6-8     Plane contact, estimated
                                                                           initial range, 100 mi.,
                                                                           at mi. volume on APR was
                                                                           at 1/2 to give a satu-
                                                                           ration signal on SPA,
                                                                           signal steady.

1. 2230(I)
   6-1-45
   21-25N
   116-14E                               180           250         6-8     Believed to be plane

2. 0200 (I)
   6-10-45
   21-57N
   119-54E                               156           500         7.5     Sweeping about 5 RPM

3. 0500 (I)
   6-10-45
   22-17N
   119-41E                               100           500         17      Steady

                                         COMMUNICATION COUNTER MEASURES

5 April    Encountered interference from Broadcast Station. At 1405Z on 6045 KC.
           Enroute PEARL-SAIPAN.

5 April    1910Z - 6045 KC. NPM signal faded out, unable to copy on 4515 for same
           reason. 9050 KC. S5-R5.

7 April    1500Z - Carrier of about 1200 CPS on top of NPM 6045 KC. NPM QRK5.
           Noted same on 4515 KC. 9050 Clear with some fading. Fading on 13655 at
           this time. 16730 QSA-1-2. At 1525Z station using call NBTO sending on
           9050 KC interfering with SKED. Posit 2005N 17539 E.

           1925Z - 9050 KC QRK2-3. Cannot hear NPM on 4515 or 6045 KC.

3 April    2145Z - NPM faded out completely on 9050 KC. Shifted to 13655 with no
           results. At 2208Z NPM QSA1 on 13655 KC and faded out at 2211Z. Shifted
           to 16730 QSA1-4 at 2220Z. Posit 1941N 16746E.

           1822Z - Unknown station called NPM5 on 6045 KC. Asked INT QMF previous
           to this was tuning XMTR and sending V's interfering with Sked.

                                         -22-

— page 33 —
C-O-N-F-I-D-E-N-T-I-A-L
U.S.S. BUMPER (SS333)
FIRST WAR PATROL REPORT

1933Z - Encountered random noise type jamming on 6045 KC. Was about
95% effective. NPM not readable on 4515 or 6045 KC. Shifted to
13655 QSA 5 QRK 5. Posit 1939N 16839E.

30 April 1914Z - Encountered random noise type jamming and excessive keying
on 9050 KC. - shifted to 13655 KC. Results fair with slight fading.
Posit Lat. 1904N Long. 15741E.

9 May 1735Z - Encountered random noise and sweep through jamming on 9050 KC.
98% effective Posit 2018N 12217E

11 May 0043Z - Encountered beam jamming on 12630 KC (VIXO Sked). Jamming
station had signal strength almost 2-1 over VIXO, about 98% effective.
VIXO could not be heard on 4370, 16150 and 9250 KC. Had interference
from other stations close to his frequency. Posit 20N 114E.

1225Z - Encountered jamming of random keying type on 9250 KC. Jamming
station was using a bug, sending extended series of meaningless dots
and dashes and "NR 27" five or six times. Station would be quiet until
VIXO started sending traffic. Only other frequency VIXO could be heard
on was 12630 KC and difficulty was encountered from a number of stations
transmitting on or near this frequency. At 1300Z was able to copy on
12630 KC. Jamming station had signal strength of 2-1 over VIXO.

12 May 1125Z - Encountered beam jamming on 9250 KC. Unable to VIXO on his
other frequencies. Station using call BTV7 sending V's on 12630 KC.
Jamming was 70% effective.

1730Z - Encountered random keyed CW jamming on 9250 KC. Jamming about
30% effective. No MSGS missed. Posit - On station.

2020Z - Encountered random keyed CW jamming on 4370 KC. VIXO QSA1.
Jamming was 99% effective. Posit 2033N 11133E. Could not hear VIXO
on other frequencies.

2045Z - Encountered beam jamming on 9250 KC. 100% effective. VIXO
QSA1.

13 May Encountered random keying jamming on 9250 KC. Jamming station starts
when VIXO starts sending traffic. Jamming 60% effective.

16 May 1255Z - Station using call sign NKN-NPN on 9250 KC blocked out NFT1.
Could not hear NFT1 on other frequencies.

-23-

— page 34 —
C-O-N-F-I-D-E-N-T-I-A-L
U.S.S. BUMPER (SS333)

WAR PATROL REPORT #1

18 May About 1545Z - Interference from station using "EUG" sending V's on
        9250 KC. Tuned receiver till station interfering was at zero beat.
        NPT1 QSA5 CRK5.

22 May 0835Z - NPT1 stopped sending. Shifted to other frequencies. With no
        results.
        0925Z - Can hear NPT1 QSA1-2 on 4370 KC. Missed one number.

27 May 0220Z - QRM-4 on 9250 KC and 4370 KC. NPT1 could not be heard on other
        frequencies. Posit 1938N 11126E.
        0415Z - Encountered interfering signals on 9250 KC. Signal consisted
        of meaningless characters and typical of bean jamming. Was not very
        effective. Signal of NPT1 fades considerably from S5 to S0.

28 May Encountered jamming throughout 1200 Sked on 9250 KC. Jamming was keyed
        and about 50% effective. Example of jamming transmission: SAIOON
        SAIOON 3 11 280940 BT LC NITINAN TOKYO JAPAN BT 2 TEOISIWWA BETTON-
        ISYOOSA AN KADI OKINA.

1 June 1015Z - Station very near 2952KC tuning excessively and sending a ser-
        ies of meaningless characters and V's. Station stopped at 1100Z.
        1615Z - Two stations transmitting on or very near 9250 KC, interfering
        with NPT1 Skeds. Stations sending were using five letter code groups.
        No calls heard.

2 June 0258Z - Station NKN calling NERK sending V's and QJZ, interfering
        with NPT1 Sked on 9250 KC. All evening jamming very heavy on 9250 KC.
        Consisted of numerals and letters mixed. Beam jamming stopped for
        approximately half hour and then back on.
        1200Z-QRM3-4 on 9250 KC. Station using call FZS3 and calling JNS2 with
        rush MSG. Posit 2027N 11618E.
        1415Z - Station using call HAI and sending the following, jammed NPT1.
        Was 100% effective. Sample of transmission:-HAI HAI HAI HAI QJS2/CXK
        HAI HAI HAI HAI HAI JNS2 DE FZS3 BT ZAN ZVP ZVP AR.
        1810Z - Encountered keyed CW jamming on 9250 KC. NPT1 signal strength
        QSA4-2.

3 June 1455-1545Z - Encountered random keying jamming on 9250 KC. Unable to
        hear NPT1 on other frequencies.

-24-

— page 35 —
U.S.S. BUMPER (SS333)

C-O-N-F-I-D-E-N-T-I-A-L
WAR PATROL REPORT #1
4 June 155Z - Encountered keyed CW jamming on 9250 KC. Not effective.

As a rule NFTI signal strength was good but was subject to fading on
all frequencies especially from 1100 to 1500Z. When signal strength
was 3 there was considerable distortion and this tended to making the
jamming more effective.
                                        TRANSMISSIONS:
No trouble was encountered in transmissions. First transmission
was made on 9 May. First called VIXO and as we did not hear him
answer, MSG was sent to ZAN for relay. VIXO receipted to ZAN, using
the proper authenticator, and message appeared on FOX SKEDS within
ten minutes. Second transmission was on May 31 to NIT1, answered first
call up and receipted immediately. Third was on 6 June and again no
difficulty. Fourth was sent on 7 June and fifth on 8 June without
any difficulty. 8460 KC was used in all transmissions. It is a ple-
asure to work with such an efficient shore station.

NOTES ON WOLFPAC COMMUNICATION

Considerable interference from several U.S. ARMY stations was en-
countered on the present standard frequencies of SAFFLAN (D). Static
using call sign WUZM caused the most interference on frequency ABLE
(2820KC). These present frequencies are not as satisfactory as the
previous ones, for they require too much power in order to get through
over the interference.

V. REMARKS.
By separate correspondence the Commanding Officer has made certain
recommendations concerning combined submarine-search plane operations
in LEGJOINT. Briefly they are:

(A) A definite VHF channel for use.
(B) Aircraft to stand a continuous watch on that VHF channel.
(C) Aircraft to not approach a submarine by day or a single radar
    contact at night closer than 5 miles until communication or
    recognition is established.
(D) Aircraft to use their IFF on contact.
(E) Aircraft to broadcast their search results on the area fre-
    quency whether positive or negative.

This is my seventh patrol, but the first "zero-run". As I have
heard from other submariners, it is a distinct shock, and a blow to
morale. This is especially true in case of a newly commissioned sub-
marine, who, like all, have strived for almost a year toward building
a first class fighting machine. However, our spirit is the same as
after losing an Army-Navy game--"we'll get 'em next time".

— page 36 —
F05-26/A16-3
Serial: ( 0152 )
C-O-N-F-I-D-E-N-T-I-A-L

SUBMARINE SQUA DRON TWENTY SIX
WF
Care of Fleet Post Office,
San Francisco, California,
20 June 1945.

FIRST ENDORSEMENT
USS BUMPER (SS333) -
Re port of First War
Patrol.

From: The Commander Submarine Squadron TWENTY SIX.
To : The Commander in Chief, UN ITED STATES FLEET.
Via : (1) The Commander Submarines, SEVENTH FLEET.
(2) The Commander SEVENTH FLEET.

Subject: U.S.S. BUMPER (SS333) - Re port of First War Patrol.

1. The FIRST war patrol of the USS BUMPER under the experienced
command of Commander J. W. WILLIAMS, Jr., was of 55 days duration, of which
31 days were spent in patrol and life-guard duties off Formosa and Hainan.
BUMPER reported to CTF 71 on 10 May. No ship contacts were made, and no
opportunity for rescue of aviators was presented, in spite of thorough area
coverage and intelligent communication effort.

2. The BUMPER presented a clean appearance upon her arrival at
SUBIC. It is expected that she will be refitted in the normal period. Docking
will be required to quiet very noisy shafts, which will be done.

3. The Administrative Squadron Commander welcomes BUMPER to the
Southwest Pacific area, and hopes that her next patrol will produce opportun-
ities to engage the enemy and diminish further his already depleted forces.

[SIGNATURE: B. E. Bacon, Jr.]
B. E. BACON, Jr.

[STAMP: 7 05118]

— page 37 —
FE24-71/A16-3                                                              UNITED STATES NAVY                                                              12b/ms
Serial 0170-A
[STAMP: C-O-N-F-I-D-E-N-T-I-A-L]
SECOND ENDORSEMENT to:                                                                                                                                    2 July 1945.
USS BUMPER Conf. Ltr.
dated 15 June, 1945.
Report of First War
Patrol.

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

Subject:               U.S.S. BUMPER (SS333) - Report of First War
                       Patrol - Comment on.

                       1. The First War Patrol of the BUMPER under the command
of Commander J. W. WILLIAMS Jr., U.S.N., was spent in patrol and
lifeguard duties off FORMOSA and HAINAN.

                       2. No ship contacts were to be expected in these areas
and none were made. Neither were there any opportunities presented
for the rescue of downed aviators.

                       3. Many opportunities were presented for the establish-
ment of communications between the BUMPER and friendly aircraft,
but considerable difficulty was experienced in getting the aviators
to answer up on VHF even when they were in sight close to the sub-
marine. In those instances where communications were effected, it
is felt that the successful establishment of these communications
was due to the determined efforts of the Commanding Officer of the
BUMPER. The separate letter of the Commanding Officer concerning
submarine-aircraft communications is noted. His most important re-
commendation, that aircraft should maintain a continuous VHF listen-
ing watch when flying over areas where submarines are known to be
operating, is concurred in.

                       4. The award of the Submarine Combat Insignia is not
authorized for this patrol.

                       5. The Force Commander welcomes the Commanding Officer,
Officers and Crew of the BUMPER to the Southwest Pacific and con-
gratulates them on the completion of a long arduous patrol.

                                                                                                                                    [SIGNATURE: JAMES FIFE]
                                                                                                                                    JAMES FIFE.
                                                                                                                                    7 05118
                                                                                                                                    ORIGINAL COPY
[HANDWRITTEN: 7-03636a]
[HANDWRITTEN: Leaf]

— page 38 —
FE24-71/A16-3 UNITED STATES NAVY
Serial 0170 12b/ms
CONFIDENTIAL
C-O-N-F-I-D-E-N-T-I-A-L

SECOND ENDORSEMENT to:
USS BUMPER Conf. Ltr.
dated 15 June 1945. 2 July 1945.
Report of First War
Patrol.

Subject: U.S.S. BUMPER (SS333) - Report of First War
         Patrol - Comment on.

— page 39 —
[STAMP: U.S. NAVY]
[STAMP: FILE SHEET NO] [HANDWRITTEN: T-574]
[HANDWRITTEN: 05118]
[HANDWRITTEN: 230]

UNITED STATES FLEET
COMMANDER SEVENTH FLEET

A16-3(8)(F-3c/cgj)
Serial: [HANDWRITTEN: 0498~] 20 JUL 1945

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

THIRD ENDORSEMENT to:
CO USS BUMPER conf ltr
SS333/A4, serial 001,
dated 15 June 1945.

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

Subject: USS BUMPER (SS333) - Report of First War
Patrol - comment on.

1. Forwarded.

[HANDWRITTEN: R+L]
[HANDWRITTEN: less]

[SIGNATURE: J. H. Long]
J. H. LONG
By direction

Copy to:
ComSubs7th
CO USS BUMPER (SS333)

— page 40 —
U. S. S. BUMPER(SS333)

SS333/A4
Serial: 013
DECLASSIFIED -L

From: Commanding Officer, U. S. S. BUMPER (SS333).
To : Commander in Chief, United States Fleet.
(1) Commander Submarine Division 302.
(2) Commander Submarine Squadron 30.
(3) Commander Task Force 71.

Subject: U.S.S. BUMPER (SS333) - Report of War Patrol Number TWO.

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

1. Enclosure (A) covering the SECOND War Patrol of this
vessel conducted in the GULF OF SIAM, SINGAPORE AREA, and JAVA SEA
during the period July 10, 1945 to August 15, 1945, is forwarded
herewith.

[SIGNATURE: J. J. Williams Jr.]
J. J. WILLIAMS, Jr.

DECLASSIFIED-ART. 0445, OPNAVINST 5510.1C
[HANDWRITTEN: BY OP-09B9C DATE 5/25/72]
DECLASSIFIED

— page 41 —
U. S. S. BUMPER (SS333)

C-O-N-F-I-D-E-N-T-I-A-L
WAR PATROL REPORT #2

(A) PROLOGUE

Arrived Subic Bay from FIRST War Patrol on June 15, 1945. Refitted by
SubDiv 261 refit crew and U.S.S. ANTHEDON. A most cooperative refit.
Had three days training. Readiness for sea date July 10, 1945.

(B) NARRATIVE

The following Officers and CPO's are attached, with previous War Patrols
as shown:

FILE NO. | RANK | NAME | PATROLS
72337 | Commander, USN | J.W. WILLIAMS, Jr. | 7
97829 | Lieutenant, USNR | F.W. GOOCH, Jr. | 9
123755 | Lieutenant, USN | B. ROBB | 1
109688 | Lieutenant, USNR | R.G. VYVERBERG | 6
293909 | Lieutenant, USN(T) | F. A. MORRIS | 9
163405 | Lieut.(jg), USNR | K. E. VAN BUREN | 5
341398 | Lieut.(jg), USNR | J.L. MEALY | 1
365349 | Ensign, USN(T) | E.E. BROCKETT | 1
389565 | Ensign, USN | L.F. FITCH | 1
406141 | Machinist, USN | M. OFFNER | 3
| | |
| CEM(PA) | J.D. COGGIN | 6
| CEM(PA) | B.R. JONES | 7
| CTM(AA)(T) | T.A. MacQUEEN | 5
| CMOMM(AA)(T) | C.W. MAYBERRY | 6
| CMOMM(AA)(T) | E.F. NOLAN, Jr. | 4
| CTM(PA) | C.P. REIMER | 6

ALL TIMES ITEM(-9)

July 10, 1945
1410 | 1200 Posit SUBIC BAY.
| Underway for BUMPER SECOND WAR PATROL, escorted by U.S.S.
| WOODSON (DE 361). Patrol area is Gulf of Siam.
1600 | Made two hour BM run for escort. Was able to give him the
| slip after the first three passes. This made us feel better,
| for on a similar run during the training period, the DE not
| only held us solid for two hours, but landed a dummy pro-
| jectile squarely on top of the after T.B.T!
2000 | Made night submerged ST run on escort.
2200 | Released escort.

-1-

— page 42 —
U. S. S. BUMPER(SS333)

C-O-N-F-I-D-E-N-T-I-A-L
WAR PATROL REPORT #2

July 11 1200 Posit Lat. 13-42N Long. 115-41E.
         Enroute area, conducting dives and drills.
0823     Sighted PRIVATEER search plane at 10 miles. Established VHF com-
         munications and exchanged pleasantries.
1630     Sighted HMS SOLENT AND SLEUTH headed toward SUBIC.

July 12 1200 Posit Lat. 1047 N Long. 111-01E.

July 13 1200 Posit Lat. 07-26N Long. 106-50E.
1621     Training Dive.
1635     JP sound contact 160°(T). Nothing in sight, but it still sounds
         like screws, 202 RPM.
1654     Surfaced, chasing down sound contact.
1718     By high periscope sighted what looked like a submarine with small
         angle on bow, bearing 140°T; submerged.
1745     Surfaced, as range had not closed, and now realized we were on his
         quarter.
1800     Sighted submarine. APR contact of British characteristics. From
         available data believe this is SEASCOUT. Closed and exchanged sig-
         nals with HMS SEASCOUT. Came within hailing distance and got the
         latest dope on our area, the Gulf of Siam, which he is just leaving.
1900     Resumed course to area.
         On running back the plot it shows JP made contact at thirty
         thousand (30,000) yards!!
2100     Reported to USS BRILL(SOPA) for instructions, via WOPACO frequency.
2200     Received answer, we are to patrol area at discretion.

July 14 1200 Posit Lat. 06-59N Long. 102-46E.
0400     Entered the area. An estimate of the situation seems as follows:-
         (1) There have been a few open sea contacts - but very few - and
             scattered.
         (2) Small ship contacts have been more numerous, these hugging the
             beach. Convoys also hug the beach.
         (3) Air cover exists for convoys, but no general AS air search has
             been seen lately.
         Course of action decided on:-
         (1) Select spots where day submerged patrol will permit observation
             of traffic along the beach. These spots are few, and necessitate
             patrol in 10 or 12 fathoms of water, but otherwise days will be
             wasted. On sighting targets will:-
             (a) Torpedo submerged if size warrants, they are not too heavily
                 escorted, and position can be obtained.
             (b) If too heavily escorted, or position cannot be attained,
                 in view of extreme shallow water, trail and attack on sur-
                 face at night.
             (c) If unescorted, and too small for torpedo, battle surface.
         (2) Patrol at night as necessary to insure thorough radar cover of
             the shoreline.
         There appears practically no place on the East Coast of the

-2-

— page 43 —
C-O-N-F-I-D-E-N-T-I-A-L
                                                              U. S. S. BUMPER(SS333)
                                                        WAR PATROL REPORT #2

          Gulf of Siam where the traffic can be observed while submerged,
          as the 10 fathom curve extends several miles to seaward. On the
          West Coast there are four spots where the 10 fathom curve runs
          within four miles of the beach:-(1) HILLY CAPE (2) LEM CHONG
          FRA (3) LEM TONG LAN and (4) KOH SATTAKUT.
          BRILL is patrolling spots 2 and 3. Will try spot #1 for a
          few days.
1500      Visual landfall on Malay Coast. Patrolling 25 miles off coast,
          waiting for dark before closing in. Avoided several sailing junks.
          During the evening closed HILLY CAPE to five miles and patrolled.
          Tracked, closed identified and avoided several obviously fishing
          junks.

          <u>July 15</u>
          1200 Posit Lat. 06-47N Long. 101-42E.
          Patrolling off HILLY CAPE.
0714      Submerged five miles off HILLY CAPE patrolling in 10-12 fathoms of
          water, sound heads up. Had numerous fishing craft and junks around
          all day.
1410      Sighted large schooner standing down coast. Commenced approach ST
          from 9000 yards in. Crossed 10 fathom curve by navigation, submar-
          ine depth 50 feet, fathometer no longer indicating. Diving Officer
          insists we were sliding along the bottom mud. Torpedo run 2800 yards.
          Observed target closely; following points noted:-
          (a) Beautiful full schooner rig - flying jib, jib, forestaysail,
          foresail, fore gaft-topsail, mainsail and main gaft topsail.
          _All sails are new white canvas_, ship is well cared for.
          (b) _Very heavily laden_ - about one foot of free board(subsequently
          proved by quick sinking).
          (c) Hugging the coast on five fathom curve(the traffic route).
          (d) Southbound toward Singapore, 6½ knots.
          (e) No colors flying.
          Consider this a legitimate target, however will use guns
          rather than torpedo in order to give schooner crew (in case
          they are natives) opportunity to abandon ship. Due to his
          hugging the beach in extreme shallow water do not feel time
          necessary to board and investigate warranted. Many small craft
          in vicinity can pick up schooner crew(one small fishing junk
          passed 300 yards ahead during approach).

                                                        GUN ACTION NO. 1

1500      Battle surface, range 3100 yards. Immediately opened fire with 5
          inch, 40 MM, and 20 MM.
1514      After three 5" hits, observed target to sink like a rock. Whatever
          his cargo was, it was heavy. Minimum range 1000 yards, sounding 5
          fathoms, 3000 yards to shore. Opened coast at close flank. His
          masts are extending above water, position Lat. 06-39N Long. 101-41E,
          a danger to navigation.

                                                              -3-

— page 44 —
U. S. S. BUMPER(SS333)

C-O-N-F-I-D-E-N-T-I-A-L
WAR PATROL REPORT #2

1654 Submerged, sounding 20 fathoms.
     Ammunition expended: 23 rounds 5", 80 rounds 40MM, 215 rounds 20MM.
     The BUMPER is no longer a virgin! Took a complete set of movies of
     the submerged approach, gun attack and sinking.
     Surf iced.
2030 SJ radar interference bearing north. Exchanged recognition signals
2100 with BRILL. Closed and had conference. SUPREME intends to patrol
     KOH CAPE tonight. BRILL is headed south for rendezvous with
     HAWKBILL. This leaves the northern area clear - will give it a look
     over for the next few days. Headed north.

July 16 1200 Posit. Lat. 09-37N Long. 100-22E.
     Surface patrol off shore headed north.
1400 While crossing PENNAN CHANNEL sighted smoke from islands. Closed
     KOH PENNAN ISLAND to four miles, smoke is from inland, the anchorage
     empty. Continued on.
1717 SD contact 11 miles. Submerged.
1835 Surfaced.
2250 Commenced surface patrol five miles off our selected spot.

July 17 1200 Posit. Lat. 10-55N Long. 99-35E
     Patrolling 15 fathom curve five miles off LEM CHONG PRAU. Avoided
     several sampans and fishing junks.
0714 Submerged, patrolling 4000 yards off beach. Many junks and small
     craft around.
0915 Sighted small engines aft coastal tanker anchored in cove of LEM
     CH. PRAU. Commenced approach. Can get within 1500 yards and still
     be in 10 fathoms of water. Set torpedoes on zero feet. One junk
     passed directly overhead during approach. With range to left hand
     promontory of the cove 1200 yards, torpedo run 1600 yards, at 10
     fathom curve, gyros set on zero, periscope set on zero, Commanding
     Officer firing with portable firing key, at

TORPEDO ATTACK 1

1030 Fired No. 1 tube at his middle. Torpedo broached, took slight jog
     to right, then ran straight throwing a plume of water. I could see
     it was going to miss ahead, so at
1031-22 Fired No. 2 tube at his stern(120 stbd. angle on bow). This torpedo
     literally jumped out of the water, jogged left, then ran straight
     throwing the same plume of water.
1032(4) No. 1 exploded on the beach. By this time there was much commotion
     on the target; where before firing I saw no personnel, now saw at
     least 15 men running around madly and one small boat pulling away
     frantically. It looked as though #2 was going to miss astern. Or-
     dered tubes 3 and 4 set on two feet to obtain better steering per-
     formance. At

-4-

— page 45 —
U.S.S. BUMPER (SS333)

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

WAR PATROL REPORT #2

1033-10 Fired #3 tube, set at two feet, at his middle. Was six seconds hasty
          on this, for at
1033-16 #2 hit him at his stern with a thunderous explosion, demolishing his
          stern section.
1034-49 #3 clipped him in the middle blowing pieces of the tanker all over the
          cove, after a nice quiet, no broaching run. The remains of the target,
          and his cargo of oil immediately broke into a huge, flaming, smoking
          fire, the billowing black smoke rising a thousand feet in the air.
          Could see bow of target sticking out of water at 20° angle. Reversed
          course opening out. Let practically entire ships company get a look
          at the holocaust.
1045 Secured from battle stations. This firing torpedoes with no opposi-
          tion is a new and PLEASANT experience. Took complete set of movies and
          stills of the action, including explosions and fires. (ED NOTE:
          Pictures turned out beautifully).
1233 Surfaced 9000 yards from beach. Oil still burning on the water.
          Opened out on four engines, shifting scene of operations to the south.

July 18 1200 Posit Lat. 08-03N Long. 103-02E.
0805 Investigated a large three masted junk. Passed slowly down his side
          at 50 yards. No cargo visible, flying Chinese colors, crew appar-
          ently Chinese. Too rough to board. Let him go on unmolested.
1125 SD radar contact 17 miles. Submerged.
2150 Surfaced.

July 19 1200 Posit Lat. 06-57N Long. 103-41E.
0200 SD radar interference, bearing east. Closed and exchanged signals
          with USS BRILL. We are to take scouting position for convoy reported
          by our aircraft, and HAMMERHEAD, as headed this way.
0710 Submerged on assigned station, in accordance with BRILL's order to
          conduct submerged patrol.
1400 Heard faint echo ranging, bearing indeterminate.
1610 Sighted three single float type JAP aircraft, apparently flying cover
          for a convoy, as they are circling. Looks like we are in the right
          spot, headed for them.
1722 Sighted masts of destroyer. Battle Stations Torpedo and commenced the
          memorable

BATTLE OF SIAM GULF

The convoy developed into two small tankers, a very small freighter, sev-
eral PC's and one KAMIKAZE destroyer. The destroyer was patrolling about 4000
yards ahead of the convoy doing the most radical constant helm on a zig plan

-5-

— page 47 —
C-O-N-F-I-D-E-N-T-I-A-L
U.S.S. BUMPER (SS333)
WAR PATROL REPORT #2

2055 BUMPER TO ALL S/MS THIS AREA:- ENEMY COURSE 026 SPEED 8 POSIT 006°-52'
     103°-40' AT 1815 ITEM X MADE DAY ATTACK NO HITS ON DESTROYER TRYING
     REGAIN POSITION.
2120 Full on three main engines.
2126 BRILL TO ALL S/MS:- RADAR CONTACT BEARING 308°(T) RANGE 17 FROM LAT
     006°-52' 103°-48' AT 1200 GCT.
2156 SJ interference bearing NE probably BRILL.
2222 BUMPER TO BRILL:- MY POSIT LAT 007°-10'N 103°-45E AT 1300 GCT MY COURSE
     000 SPEED 16 NO CONTACT.
2230 Interference on SJ which is NOT U.S. - undoubtedly DD radar. Bearing
     090° true. Changed course to 060 True to close and maintain true bear-
     ing - this is a far cry from yesteryears - chasing the radar interference
     of a JAP DD!
2239 Another contact report from BRILL giving enemy course and speed.
2302 SJ radar contact on enemy, convoy range 17000 yards, bearing 120°(T).
     We are on their port bow. Commenced drawing ahead, course 000°(T).
     Enemy course 000°(T).
2314 BRILL TO BUMPER:- AM ATTACKING.
2315 BUMPER TO BRILL:- HAVE CONTACT BEARING 120 TRUE RANGE 17000. (Had
     ordered sent at 2305 - BRILLS 2314 came in just as we started sending.
2328 Single radar contact 11000 yards, ahead of convoy, course south, speed
     15, SJ interference. Must be BRILL attacking. Changed course to 330
     to keep clear of him. Saw him (by radar) dive 10000 yards ahead of
     the DD. Watching the plot with fascination. The DD in same position
     as this afternoon - 4000 yards ahead of the convoy, doing that terrific
     zigging, but BRILL is in the right spot, dead ahead. This is like a
     movie!)
     Just as the DD approached the spot where we figured BRILL was the DD
     did a hard left, then a hard right, and continued on at his 12½ knots,
     doing his same wild zigging. BRILL must have missed too. Had planned
     to shoot a few 5" shells at extreme range at the DD in case he started
     working over BRILL. Fortunately this wasn't necessary. Our turn next.
     The range on DD closed to 10000 yards, can see him in #1 periscope
     at that range. Moon is 3/4 full, but overcast. At this range the DD
     challenged us by blinking light! Shut off our SJ, opened range, ranging
     with SJ and taking position by DRT.
     Let the DD go by the position we were in when he challenged us -
     he did nothing suspicious there.
0022 COD TO BRILL & BUMPER:- RADAR CONTACT BEARING 042 RANGE 500(?) FROM
     POSIT 007-21 103-15 AT 1500 GCT X WILL TAKE POSITION AS TRAILER UNTIL
     YOUR ATTACK COMPLETED.

Looks like the pack is forming!

-7-

— page 48 —
U.S.S. BUMPER (SS333)
C-O-N-F-I-D-E-N-T-I-A-L
WAR PATROL REPORT #2

0050 BUMPER TO COD AND BRILL:- AM ATTACKING FROM AHEAD SUBMERGED.

July 20 1200 Posit Lat. 07-38N Long. 104-00E.
0053 Dead ahead of DD track, 18000 yards, have not used SJ for 50 minutes.
     Hope DD is unsuspecting. Reversed course to south, headed for him.
     Here we go again!
0100 Submerged to ST depth, range 15000. Sighted target at 7000 yards -
     we are right on his track! Set depth 4 feet on all tubes. As the
     problem developed it again looked like we were in perfect position.
     With range 3500 he seemed to ease off to the east. Changed course to
     head for him. A left zig overdue - he is supposed to come back and
     cross our bow at 1000 yards on starboard track - but again he didn't
     do it. He is going down our port side! At

TORPEDO ATTACK #3

0135 Commenced firing six torpedoes forward, 100 port track, gyros 80 left,
     range 2040 yards, spread 600 feet with MOT as his #2 stack to offset
     the spread aft in case he maneuvers. Data is perfect and periscope
     bearings checking exactly. Believe this is his end. Hard right rud-
     der - match gyros aft.
0136-15 He is swinging away with hard rudder and a burst of smoke from his
     stack! His torpedo detector is working and he believes in it!
0137 Torpedoes due and his angle on the bow is 180°. All missed. ONE SMART
     COOKIE this guy. He flashed a red truck light to the convoy - they
     too changed course to east. Reload last four torpedoes forward.
     Watching situation at periscope depth with that wonderful ST radar!
     Stern tubes ready for any or all customers.
0139 DD is running away! The first time that ever happened to me. He is
     scared!
0145 Two distant depth charges. Tracking DD at 6000 yards, PC at 4000 yds.,
     both milling about at a respectful distance from firing point, convoy
     going over the hill. Maneuvering around at periscope depth hoping for
     another shot. No luck. Everyone keeps working to the east. Opened
     out for surfacing.
0254 Surfaced, visibility shutting down rapidly with heavy overcast and
     setting moon. Range to nearest enemy ship 7000 yards. Have unidenti-
     fied radar contact to the south, 9000 yards with SJ interference. No
     reply to challenge.
0304 BUMPER TO COD:- ATTACK COMPLETED MISSED HE AVOIDS BY SOUND RECOMMEND
     CLOSE FIRING RANGE.

-8-

— page 49 —
U.S.S. BUMPER (SS333)
C-O-N-F-I-D-E-N-T-I-A-L
WAR PATROL REPORT #2

0310 BUGARA TO BRILL:- MY POSITION 07°-20' garbled 45' 1800 WAS YOUR ATTACK
     SUCCESSFUL.
0312 BRILL TO BUGARA:- MISSED DD WITH 4.

     There is a lot of chit chat on WOPACO, but no one seems to be
     attacked. Our contact to south still won't answer challenge. All
     about full, headed for convoy. BUMPER will attack again.

     Visibility has shut down to an estimated 2000 yards. Radar shows
     convoy in two groups, one of five ships, the other of two or three. All
     back on course north. We are 10000 yards on port quarter of the 5 group,
     the other group being 5000 yards on their starboard bow. Am not sure
     where DD is now. It is too dark for a submerged attack, and also too
     late for an end around. Will make a surface attack on the near group,
     hoping to spot the DD in the melee. Commenced a quarter approach on
     this group, as so ably propounded by GENE FLUCKEY, in BARB. Chose the
     two nearest pips as targets, as all five targets give practically same
     size pip.

                       TORPEDO ATTACK #4

0346 Fired the last four torpedoes forward at the near target, range 1800
     yards, track 110 port. Swung hard left, steadied, and fired the three
     stern tubes at the target close on his starboard quarter, range 2000
     yards, 70 port track. All torpedoes set at 5 feet - the estimated least
     depth for steering performance.

     There were no explosions, torpedoes probably having under run. Radar
     bearings were used throughout, targets not sighted from bridge.

0355 Opened out to the northwest to 6000 yards. Observed several blink-
     ing white lights from target group, and they were observed to change
     disposition considerably. Still no counter measure - we have them
     scared stiff. Reload last three torpedoes aft, set depth at 3 feet.
     COD TO ALL S/MS:- RADAR OUTX MAKING REPAIRS X POSIT 06 MILES AHEAD OF
     CONVOY.
     BUMPER will attack again. Visibility has improved some now. Disposi-
     tion as seen by radar, and verified by sight on closing as follows:-

-9-

— page 50 —
C-O-N-F-I-D-E-N-T-I-A-L
WAR PATROL REPORT #2

U.S.S. BUMPER (SS333)

[HANDWRITTEN: ↑ DO ?]
[HANDWRITTEN: ↑ ?]
[HANDWRITTEN: ↑ PC]
[HANDWRITTEN: ↑ AW or AO]

[HANDWRITTEN: Bumper]
[HANDWRITTEN: 0437]
[HANDWRITTEN: 0529]
[HANDWRITTEN: ↑ AO]
[HANDWRITTEN: ↑ PC]

0437 Came in from port bow. Passed astern of leading PC, swung hard
right for a quick stern shot at the trailing tanker when it seemed we
could close the trailing PC no further without being sighted.
In firing position; but torpedo run is 3000 yards. Did not shoot.
Opened out on their port quarter. The port side is too heavily guarded
for good visibility; can now see that the starboard flank is wide open,
and that the trailing tanker is the biggest of the group.
Passed astern of trailing PC, commenced working up the starboard
quarter. Came in on starboard beam of the tanker, swung hard left,
steadied quickly, and at

TORPEDO ATTACK #5

0529 Fired the last three torpedoes on board, from the stern tubes at the
tanker, on 120 starboard track, torpedo run 2200 yards, fairly large left
gyros, TBT bearings, radar ranges.
0531 Observed, timed and heard torpedo explosion on the target, seen by the
explosion to be a small engine aft tanker of the new standard design
about 1200 tons.
PERSEVERANCE PAYS! After twelve hours and nineteen torpedoes, that
explosion was music to our ears.

-10-

— page 51 —
U.S.S. BUMPER (SS333)

C-O-N-F-I-D-E-N-T-I-A-L
WAR PATROL REPORT #2

Opened out to 7500 yards; watching for target to sink on the radar.
He plots as stopped. Two escorts seen by radar that were continuing
few minutes, then take off after the other pips that were continuing
northward. What gives? Target pip is still strong, but everyone has
deserted him and are high tailing it to the north. Other target group,
which by now I realized contained the DD, continued north, in spite of
a green rocket flare from the target after being hit. That DD is
still scared!
0605 BUMPER TO ALL S/MS:- POSIT 008°-02' 104-01' ALL TORPEDOES FIRED ONE
SHIP DAMAGED.
This won't do. Though we have no torpedoes - made plans for using
the guns if necessary. All ahead full headed for target pip. Closed
to range of 750 yards, where we plainly saw that the radar pip was
coming from his bow section sticking high in the air at an angle of
about 45°. The after seven eighths of the ship is submerged. Took
sounding - 10 fathoms! That explains it!
We hit him as he was passing over one of the banks west of PULO
OBI! A tremendous oil slick was formed to leeward of him - his cargo
was definitely oil. He is effectively destroyed.
0630 All ahead full, headed south for deeper water. Dawn is one-half hour
away. Tried to send short message to CTF 71, couldn't raise SUBIC.
Informed BRILL we were out of torpedoes and departing area.
0743 Submerged to rest all hands, having been at battle stations and in
shooting contact with the enemy for fourteen hours.

Thus ended the BATTLE OF SIAM GULF. Maybe we didn't sink a lot of
tonnage - but we gave it everything we had.

1836 Surfaced. Sent report to CTF 71 and to BUGARA, who succeeds to SOPA
SIAM GULF.
2200 Received answer from CTF 71 to proceed SUBIC for reload.

July 21 1200 Posit. Lat. 12-47N Long. 112-00E.
Enroute SUBIC.
1135 SD contact 9 miles. No IFF. Submerged.
1205 Surfaced.
1546 SD contact 18 miles. Sighted and talked with PRIVATEER by VHF. He
saw our targets oil slick, but the bow of the ship had apparently sunk.
2025 Three SD contact 30, 24 and 21 miles, all showing IFF. Least range 20
miles.

-11-

— page 52 —
U.S.S. BUMPER (SS333)

C-O-N-F-I-D-E-N-T-I-A-L
WAR PATROL REPORT #2

July 22
1200 Posit Lat. 12-47N Long. 112-00E.
Enroute SUBIC.
1026 SD contact at 28 miles. IFF. Sighted LIBERATOR at five miles, no
VHF.
1202 SD contact 33 miles. Least rnage 30 miles.
1444 SD contact 9 miles. Sighted PRIVATEER.

July 23
1200 Posit Lat. 14-11N Long. 116-34E.
Enroute SUBIC.
0845 SD contact 20 miles. Sighted PRIVATEER.

July 24
1200 Posit SUBIC.
0530 Rendezvous with escort, USS PRATT.
0930 Entered SUBIC BAY, moored alongside USS ANTHEDON for a torpedo reload
and voyage repairs.

July 25
At SUBIC BAY for reload and voyage repairs.

July 26
1200 Posit Lat. 14-40N Long. 119-46E.
0900 Underway for second part of BUMPER #2 WAR PATROL, escorted by USS
WOODSON. Patrol area is lifeguard off SINGAPORE.
1046 Made submerged run on escort for calibrating our JP decibelmeter.
1440 Released escort.

July 27
1200 Posit Lat. 13-19N Long. 114-08E.
1840 Held 40MM, 20MM and small arms practice on a number of 50 gallon
drums filled with gasoline, which we passed through. One caught
fire when hit by 20MM tracer.

July 28
1200 Posit Lat. 09-38N Long. 110-02E.
Enroute area.

July 29
1200 Posit Lat. 04-42N Long. 107-01E.
Enroute area.
1000 Rendezvous with USS BLENNY. Transferred 10 bags of mail to him via
breeches buoy.

July 30
1200 Posit Lat. 01-33N Long. 106-01E.
Entered patrol area.
0200 Rendezvous with USS BOARFISH. Transferred 9 bags of mail to him
via breeches buoy. Feel like the rural mailman. Relieved him in
the area.

-12-

— page 53 —
U.S.S. BUMPER (SS333)

C-O-N-F-I-D-E-N-T-I-A-L
WAR PATROL REPORT #2

0730 Submerged. The air strike today on SINGAPORE has been cancelled.
     Will stay out of sight. Do not expect to see any targets out here.
2000 Surfaced.

July 31
0708 1200 Posit Lat. 01-48N Long. 105-12E.
     Submerged.
1125 Surfaced on lifeguard station.
1320 SD contact 20 miles. Least range 14 miles. No IFF or VHF.
1500 TOT ended. Moved out to eastward.
1730 Boarded small junk.Cargo of religious papers and rickshaw tires, headed
     for BORNEO. Allowed him to proceed.

August 1
0714 1200 Posit Lat. 00-59N Long. 105-14E.
     Submerged.
1126 Surfaced on lifeguard station.
1235 Investigated small fishing junk. No cargo. Let him proceed.
1500 TOT completed. Opened out to east.
1830 Boarded two small junks. Both had a few bags of coffee(?) beans as
     cargo. Allowed them to proceed.

August 2
0000 1200 Posit Lat. 01-05N Long. 105-20E.
     Have received no lifeguard station for today. Headed south for
     patrol off BANKA ISLAND.
0400 Received lifeguard station for today. Reversed course.
0909 Submerged.
1127 Surfaced on lifeguard station.
1250 SD contact 39 miles.
1311 Sighted medium bomber at 18 miles. Least range 15 miles.
1358 SD contact 8 miles. At six miles sighted large 4 engine airplane
     headed directly for us, coming out of a cloud bank. No IFF, no
     VHF. Submerged.
1420 Surfaced.
1500 TOT completed. Moved eastward.
1600 No lifeguard station assigned tomorrow. Again headed south for
     BANKA. Am trying to get some shooting in with this lifeguard.
2308 Received word to resume station off SINGAPORE for special mission.
     Reversed course at Lat. 000-00.5 minutes north! The POLYWOGS were
     trembling.

-13-

— page 54 —
U.S.S. BUMPER (SS333)

CONFIDENTIAL
WAR PATROL REPORT #2

August 3
1004
1200 Posit Lat. 01-34N Long. 105-49E.
Special mission cancelled. Headed south again for BANKA.
Crossed the equator. Ceremonies later; work to do tomorrow, I hope.

August 4
0722
1200 Posit Lat. 01-35S Long. 106-05E.
Closed BANKA ISLAND, and at
Submerged four miles off NE coast of BANKA, closed to 5000 yards
and conducted submerged patrol. Not a single thing in sight all
day, so at
1829
Surfaced for a sweep of the coast during the remaining two hours
of daylight. Covered 25 miles of coast, sighted one small junk
at anchor in a cove.
During the night patrolled north of KLABAT BAY.

August 5
1200 Posit Lat. 01-36S Long. 105-23E.
In view of our yesterday's daylight, unmolested short surface
patrol of the coast, decided to try a whole day of it. At day-
light commenced closing entrance to KLABAT BAY. Closed to the
10 fathom curve 6000 yards off the beach and commenced a sweep
down the coast.
0930
Sighted small tug with barge in tow moving along coast. On see-
ing us he slipped his tow and headed for the beach. Flooded way
down, crossed the 10 fathom curve, piloting among rocks and shoals,
and at
GUN ACTION #2
1000
Opened fire on the barge, range 2500 - 1000 yards with 40MM. Hit-
ting a good percent of the time, but only holing upperworks. Manny
5 inch - first shot blew him to pieces and he sank. Now turned 5
inch on the tug, who had run to the beach and abandoned ship via
small boat. Three hits from 18 rounds at 3000 yards sank him.
Opened out to 10 fathom curve and resumed sweep of the coast.
1150
Sighted a medium sized lugger at anchor behind some rocks. Man-
euvered for position in his cove but when soundings got to 3 fathoms
changed my mind, moved out to 10 fathom area, stopped, and at
GUN ACTION #3
1230
Sank the lugger with 5 hits from 19 rounds 5" at 3900 yards.
Commenced a return sweep of the coast. We paid for our sins
today when at
1334
Sighted a single-engine plane diving at us from practically overhead,
range too close. Quick dive, in 66 feet of water, holding our
hearts. No bombs, no straffing - he must not have been an AS plane.
Opened coast submerged.

-14-

— page 55 —
C-O-N-F-I-D-E-N-T-I-A-L
                                                                U.S.S. BUMPER (SS333)

WAR PATROL REPORT #2

2015                                    Surfaced, headed for rendezvous with HARDHEAD for our last
                                        mail delivery.

August 6
1200 Posit Lat. 00-16N Long. 106-54E.
HARDHEAD delayed until tomorrow. Spent the day investigating
the BANDAS AND TAMBELAN ISLAND groups, weaving in among the
islands. Nothing but native fishing vessels sighted.

August 7
1200                                    1200 Posit Lat. 00-03N Long. 106-50E.
                                        Rendezvous with HARDHEAD, delivered his mail and exchanged movies.
                                        Commenced moving down to SE corner of area, preparatory to
                                        leaving when LAMPREY moves in north end tonight.
1800                                    Decoded ICEFISH report saying he had sunk a lugger while making
                                        passage through our area. After eight days of our covering the
                                        area without contact except inside the 10 fathom curve off BANKA -
                                        BUMPER gets one right in the middle while passing through! Ain't
                                        no justice!

August 8
0200                                    1200 Posit Lat. 01-52S Long. 108-42E.
                                        LAMPREY reported entering the area. BUMPER departed area as we
                                        had previously told LAMPREY we would. Enroute Area Easy Eight.
                                        Planned and executed a daylight passage of KARIMATA STRAIGHT,
                                        since the bars are down about shooting there now. Only thing
                                        sighted was at
1030                                    Boarded a small Malayan sailing coaster. Cargo of soap and
                                        dishes. Let him proceed.

August 9
1200 Posit Lat. 05-29S Long. 112-38E.
Entered area Easy Eight for patrol. Conducted surface patrol
north of JAVA coast. Sighted one plane, submerged for an hour;
sighted numerous native fishing craft. Investigated several -
all innocent. During the evening passed south of KANGEAN ISLAND
for close inshore patrol of BALI tomorrow.

August 10
0200                                    1200 Posit Lat. 08-02S Long. 115-14E.
                                        Rendezvous with CHUB. Transferred 10 rounds of 5" and one case
                                        of 40MM to him, via rubber boat. Had intended to give him more,
                                        but we both wanted to clear BALI before dawn, and it was taking
                                        too much time.
0728                                    Sunrise, submerged 20 miles off BALI coast, closed coast to one
                                        mile and conducted submerged patrol 800-1500 yards off the beach.
                                        Many native sailing craft. Made "long glass liberty" of famous
                                        BALI. By using a pair of 7X50 on the high power, clear ST peris-
                                        cope we definitely determined that it is true the women wear
                                        skirts only!
1956                                    Surfaced. In accordance with OPORD departed the area, commenced
                                        transit of LOMBOK STRAIGHT.

                                                                -15-

— page 56 —
U. S. S. BUMPER(SS333)
C-O-N-F-I-D-E-N-T-I-A-L
PATROL REPORT #2

August 11
0100
1200 Posit. Lat. 11-42S Long. 115-09E.
Completed transit of LOMBOK. Only contact
shore base radar, which seemed to be tracking us through the
straight.
Enroute FREMANTLE on four engines.

2000
Exchanged SJ signals with PUFFER and CAPITAINE northbound.

August 12
0330
1200 Posit. Lat. 17-36S Long. 113-48E.
SJ contact on single ship, range 22,000 yards. Course 265,
speed 17, indications of SC radar. Avoided, as we are in air-
surface zone.

August 13
1200 Posit. Lat 23-46S Long. 112-28E.

August 14
1247
1330
1200 Posit. Lat 29-00S Long. 112-52E
Exchanged recognition signals with northbound British submarine.
Exchanged signals with northbound LONGHEAD.

August 15
0800
1200 Posit. FREMANTLE
Rendezvous with escort.
Entered FREMANTLE HARBOR, WEST AUSTRALIA. We finally made it!!

-16-

— page 57 —
U.S.S. BUMPER (SS333)

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

WAR PATROL REPORT #2

C. WEATHER:

    No unusual weather was encountered. Generally the weather was pleasant.

D. TIDAL INFORMATION:

    The tides and currents follow that given by the charts and tide and
    current tables. In the SIAM GULF area there was a northerly set of .2
    to .5 knots while in the area off SINGAPORE the average set was 325°T,
    drift .7 to 1.2 knots.

E. NAVIGATIONAL AIDS:

    The light on SERUTU ISLAND in KARIMATA STRAIT was sighted during daylight
    hours and appeared intact and in good condition.
    The sailing schooner sunk on July 15th in 5 fathom of water with masts
    sticking above the water (Posit Lat. 06-39N Long. 101-41E), and the tanker
    sunk on July 20th in 10 fathom of water (Posit Lat. 08-10-30N Long. 103-49-
    00E), form dangers to navigation.

F. SHIP CONTACTS:

| NO. | TIME DATE | LAT. LONG. | TYPE(s) | INITIAL RANGE | EST. COURSE SPEED | HOW CONT. | REMARKS |
|---|---|---|---|---|---|---|---|
| 1. | 1410I 7/15/45 | 6-42S 101-45E | Schooner | 6000 | 150T 6 knots | HP | Sank by gunfire |
| 2. | 0915I 7/17/45 | 10-54N 99-33E | Coastal Tanker | 5000 | Anchored | HP | Sunk by torpedoes |
| 3. | 1722I 7/19/45 | 06-55N 103-40E | KAMIKAZE Class DD and convoy consisting of two small tank-ers, a small freighter and several PC's. | 20000 | Base Course North | HP | Made five torpedo attacks. Sank one tanker. |
| 4. | 0915I 8/3/45 | 01-31S 105-34E | Small tug and barge. | 1000 | 260T 5 kts. | HP | Sank both by gunfire |
| 5. | 1230I 8/5/45 | 01-36S 105-24E | Medium lugger | 8000 | Anchored | HP | Sank by gunfire |

-17-

— page 58 —
C-O-N-F-I-D-E-N-T-I-A-L
U.S.S. BUMPER (SS333)

WAR PATROL REPORT #2

In addition numerous small craft of all types were encountered. For
details, see NARRATIVE.

G. AIRCRAFT CONTACTS:

Japanese air contacts were few. The convoy had air cover. Lack of
proper AS air patrol enabled us to conduct inshore gun shooting in non-
divable water.

-18-

— page 59 —
U.S.S. BUMPER (SS333)

CONFIDENTIAL
WAR PATROL REPORT #2

H. ATTACK DATA:

U.S.S. BUMPER (SS333) TORPEDO ATTACK NO. 1 PATROL No. 2
Time: 1030 (Item) July 17, 1945 Lat. 10-54.2N Long. 99-31.0E

Target Data - Damage Inflicted

Description One small coastal tanker, anchored in cove of LEM CHONG
FRAU. Sighted by periscope, visibility unlimited.

Ship(s) Sunk Small coastal tanker. Tonnage from ONI 208J chart es-
timated at 800 tons.

Damage Determined Saw two torpedoes hit, target blown to pieces, with bow
By sticking out of water. Oil cargo caught fire, and was still
burning three hours after hits. Pictures of target before
being hit, torpedoes hitting, and resultant fires, enclosed.

Target Draft Est. 10 feet, course ----, speed 0 (anchored), range at
firing 1660.

Own Ship Data

Speed 2, course 283.5, depth 59, angle 1° up.

Type Attack Day submerged attack at anchored target. Due to small size
of target, and large angle on bow (120-135 stbd.), used
gyros set on zero, periscope set on zero, fired with port-
able firing key when vertical cross-wire was steady on.

-19-

— page 60 —
U.S.S. BUMPER (SS333)

C-O-N-F-I-D-E-N-T-I-A-L
WAR PATROL REPORT #2

| | #1 | #2 | #3 |
| :| :| :| :|
| Tubes F d. | 1 | 2 | 3 |
| Track Angle | 130S | 130S | 150S |
| Gyro Angle | 0 | 0 | 0 |
| Depth set | 0 | 0 | 2 |
| Power | -- | -- | -- |
| Hit or Miss | Miss (50') | Hit | Hit |
| Erratic | Yes | No | No |
| Mk. Torpedo | 18-2 | 18-2 | 18-2 |
| Serial No. | 99817 | 99730 | 99803 |
| Mark Exploder | 4-7 | 4-7 | 4-7 |
| Serial No. | 17104 | 17202 | 16856 |
| Actuation Set | Contact | Contact | Contact |
| Torpedo Run | 1840 | 1660 | 1460 |
| Mark Warhead | 18 | 18 | 18 |
| Serial No. | 1123 | 9306 | 1215 |
| Explosive | TFX | TFX | TFX |
| Firing Time | 0 | 1-22 | 3-10 |
| Type Spread | None | None | None |
| Sea Conditions | Calm, slight swell. | | |
| Overhaul Activity | USS ANTHEDON (AS24) | | |

Remarks:
#1 broached slightly, jogged right, and missed MOT by 100
feet. It exploded on the beach.

#2 actually jumped out of the water on ejection, jogged
left. It hit target about 50 feet to left of MOT, and
exploded.

#3 ran normally, hitting MOT, and exploding.

The times of runs for the two hits were 1 min. 54 sec. and
1 min. 39 sec. respectively. Sea water temperature, 80°F.,
electrolyte temperature, 86°F.

-20-

— page 61 —
U.S.S. BUMPER (SS333)

CONFIDENTIAL

WAR PATROL REPORT #2

U.S.S. BUMPER (SS333) TORPEDO ATTACK NO. 2 PATROL NO. 2
Time: 1817 (Item) July 19, 1945 Lat. 6-50N Long. 103-35E.

Target Data - Damage Inflicted

Description Convoy consisting of one KAMIKAZE destroyer, two small
tankers, one very small freighter, and several PC es-
corts. Initial sighting by periscope, visibility un-
limited.

Ship(s) Sunk or None.
Damaged

Target Draft 9.6 ft., course 000, speed 12.5 knots, range at firing
850.

Own Ship Data

Speed 3, course 160, depth 59, angle 0.

Type Attack Day submerged attack on destroyer. Fired three torpedoes
forward with large gyros on varying track, close range.
Checked fire when gyros became too large.

-21-

— page 62 —
U.S.S. BUMPER (SS333)

CONFIDENTIAL
WAR PATROL REPORT #2

TORPEDO ATTACK #2

                                        #1          #2          #3
Tubes Fired                             81S         100S        124S
Track Angle                             102R        120.5R      145R
Gyro angle                              5 ft.       5 ft.       5 ft.
Depth Set                               28.4 kts.   28.4 kts.   28.4 kts.
Power                                   Miss        Miss        Miss
Hit or Miss                             No          No          No
Erratic                                 18-2        18-2        18-2
Mk. Torpedo                             99665       99896       99731
Serial No.                              8-7         8-7         4-7
Mark Exploder                           16755       16788       17135
Serial No.                              Contact     Contact     Contact
Actuation Set                           600 yds.    570 yds.    660 yds.
Torpedo Run                             18-2        18-2        18-2
Mk. Warhead                             5162        6092        1127
Serial No.                              TFX         TFX         TFX
Explosive
Firing Interval                         10 sec.
Type Spread                             1.5R        15L         6.5R
Sea Conditions                          Calm, slight swell.
Overhaul Activity                       USS ANTHEDON (AS24)

Remarks:
Believe torpedoes missed because of large gyros
short range. Casualty to gyro setter prevented
shooting earlier.

Sea water temperature, 80°F., electrolyte temperature
86°F.

                                        -22-

— page 63 —
U.S.S. BUMPER (SS333)
          C-O-N-F-I-D-E-N-T-I-A-L
                 WAR PATROL #2

U.S.S. BUMPER (SS333)                   TORPEDO ATTACK NO. 3
Time: 0135 (Item) July 20, 1945 Lat. 7-45N Long. 103-40E.     PATROL NO. 2

                   Target Data - Damage Inflicted
Description        Same convoy as Attack #2.
Ship(s) Sunk or
Damaged            None.

Target Draft       9.6 feet, course 030, speed 12.5 kts., range at firing 2040.

                   Own Ship Data
Speed 3, course 180T, depth 55, angle 0.
Type Attack        Night submerged attack, using ST radar. Fired six tor-
                   pedoes at destroyer, who avoided all six.

                                     -23-

— page 64 —
C-O-N-F-I-D-E-N-T-I-A-L
U.S.S. BUMPER (SS333)
WAR PATROL REPORT #2

TORPEDO ATTACK #3

| | #1 | #2 | #3 | #4 | #5 | #6 |
| :| :------- | :------- | :------- | :------- | :------- | :------- |
| Tubes Fired | 108P | 110F | 113P | 117P | 120P | 126P |
| Track Angle | 282-30 | 281 | 276 | 275 | 267 | 268 |
| Gyro Angle | 4 | 4 | 4 | 4 | 4 | 4 |
| Depth Set | 28.2 kts. | 28.2 kts. | 28.2 kts. | 28.2 kts. | 28.2 kts. | 28.2 kts. |
| Power | Miss | Miss | Miss | Miss | Miss | Miss |
| Hit or Miss | No | No | No | No | No | No |
| Erratic | 18-2 | 18-2 | 18-2 | 18-2 | 18-2 | 18-2 |
| Mk. Torpedo | 99744 | 99717 | 99801 | 99779 | 99747 | 99666 |
| Serial No. | 4-7 | 8-7 | 8-7 | 8-7 | 4-7 | 8-7 |
| Mk. Exploder | 16656 | 15989 | 16869 | 16958 | 17363 | 16665 |
| Serial No. | Contact | Contact | Contact | Contact | Contact | Contact |
| Actuation Set | 2100 | 2100 | 2110 | 2190 | 2220 | 2350 |
| Torpedo Run | 18 | 18-2 | 18-2 | 18-2 | 18 | 18-2 |
| Mk. Warhead | 904 | 5219 | 5134 | 5104 | 613 | 3514 |
| Serial No. | TPX | TPX | TPX | TPX | TPX | TPX |
| Explosive | | | | | | |
| Firing Interval | 10 sec. | | | | | |
| Type Spread | 1L | 2R | 1 3/4R | 3L | 3R | |
| Sea Conditions | Force 1 | | | | | |
| Overhaul Activity | USS ANTHEDON (AS24) | | | | | |

Remarks:
Torpedo run was 2150 yards. One minute and 15 seconds after
the first torpedo was fired destroyer was seen to commende
swinging away. By time torpedoes were due at the track, the
target was presenting his stern. Target evidently has some
sort of torpedo detector.

Sea water temperature: 80°F. Electrolyte temperature: 86°F.

-24-

— page 65 —
U.S.S. BUMPER (SS333)

C O N F I D E N T I A L
WAR PATROL REPORT #2

U.S.S. BUMPER (SS333) TORPEDO ATTACK #4
Time: 0345 (Item) July 20, 1945 Lat. 7-58N Long. 103-40E.

Target Data - Damage Inflicted

Description Same convoy as in Attack #2
Ship(s) Sunk or None.
Damaged

Target Draft Unknown, course 000, speed 8 kts. Range (bow tubes) 2100,
(stern tubes) 2100.

Own Ship Data

Speed 8-10, course 070 and 300.

Type Attack Night surface attack using SJ radar on two unidentified
targets. Targets not sighted; radar bearings were used
for firing. Targets approached from their quarter.

-25-

— page 66 —
C-O-N-F-I-D-E-N-T-I-A-L
                                                                U.S.S. BUMPER (SS333)

WAR PATROL REPORT #2

                                                                TORPEDO ATTACK #4

Tubes Fired                                     #3          #4          #5          #6          #7          #8          #10
Track Angle                                     119F        119F        119F        122F        100P        97P         94F
Gyro Angle                                      9L          8L          10L         10L         40L         38L         34L
Depth Set                                       5           5           5           5           5           5           5
Power                                           28.4        28.4        28.4        28.4        28.4        28.4        28.4
                                                kts.        kts.        kts.        kts.        kts.        kts.        kts.
Hit or Miss                                     Miss        Miss        Miss        Miss        Miss        Miss        Miss
Erratic                                         No          No          No          No          No          No          No
Mk. Torpedo                                     18-2        18-2        18-2        18-2        18-2        18-2        18-2
Serial No.                                      99805       99784       57271       99868       99469       99789       99778
Mk. Exploder                                    8-7         8-7         8-7         8-7         4-7         8-7         4-7
Serial No.                                      16184       16204       16092       15727       16898       16828       16862
Torpedo Run                                     2320        2275        2225        2210        2220        2350        2400
Mk. Warhead                                     18-2        18-2        18-2        18-2        18          18-2        18
Serial No.                                      5148        4445        5775        5606        965         5179        994
Explosive                                       TFX         TFX         TFX         TFX         TFX         TFX         TFX
Firing Interval 10 sec.
Type Spread             3L          3R          2L          2R          0           1L          1R
Sea Conditions          Force 2.
Overhaul activity       USS ANTHEDON (AS24)

Remarks:                Believe torpedoes missed due to short length and shallow draft
                        of targets. Sea water temperature was 80°F., electrolyte tem-
                        perature 86°F.

                                                                -26-

— page 67 —
U.S.S. BUMPER (SS333)

C-O-N-F-I-D-E-N-T-I-A-L
WAR PATROL REPORT #2

U.S.S. BUMPER (SS333)
Time: 0530 (Item) July 20, 1945 Lat. 8-08N Long. 103-40E.

Description                               Same convoy as Attack #2.
Ship(s) Sunk                              One Small Tanker, new standard type, estimated 1200 tons
or Damaged                                (EC).

Damage Determined By                      Saw one torpedo hit. One hour later closed target to
                                          750 yards on surface - all that remained was bow sec-
                                          tion sticking out of water. Depth of water 13 fathoms
                                          by fathometer.

Target Draft                              Unknown, course, speed 7.5 kts., range at firing 2100.

                                          Own Ship Data

Speed KO kts.                             Speed KO kts., course 210T.

Type Attack                               Night surface radar, using TBT bearings and radar ranges.
                                          Submarine dr w abeam from the targets quarter, closed in
                                          from abeam, swung ship and fired stern tubes.

-27-

— page 68 —
C-O-N-F-I-D-E-N-T-I-A-L
WAR PATROL REPORT #2

                                        U.S.S. BUMPER (SS333)

                                        TORPEDO ATTACK #5

Tubes Fired                             #7              #8              #9
Track Angle                             122S            124S            132S
Gyro Angle                              88L             83L             81L
Depth Set                               3 ft.           3 ft.           3 ft.
Power                                   28.2 kts.       28.2 kts.       28.2 kts
Hit or Miss                             Miss            Miss            Hit
Erratic                                 No              No              No
Mk. Torpedo                             18-2            18-2            18-2
Serial No.                              99766           99753           99743
Mk. Exploder                            4-7             4-7             8-7
Serial No.                              16427           17340           16853
Actuation Set                           Contact         Contact         Contact
Torpedo Run                             2460            2490            2550
Mk. Warhead                             18              18              18-2
Serial No.                              549             969             2097
Explosive                               TFX             TFX             TFX
Firing Interval                         10 sec.
Type Spread                             0               1R              1L
Sea Conditions                          Force 1
Overhaul Activity                       USS ALTHEDON (AS24)

Remarks:
        Believe first two torpedoes missed due to 1/2 knot
        speed error, subsequently found in submarines pit log.
        A time interval of 3 min. 5 sec. elapsed between the
        time the first torpedo was fired and the torpedo ex-
        plosion - time of run for the third torpedo 2 min. 45
        sec. Sea water temperature was 80°F., electrolyte
        temperature 86°F.

                                        -28-

— page 69 —
U. S. S. BUMPER(SS333)

C-O-N-F-I-D-E-N-T-I-A-L
WAR PATROL REP)RT #2

USS BUMPER(SS333) GUN ATTACK #1 PATROL NO. 2
Time: 1503(Item) Date: July 15, 1945 Lat. 6-42N Long. 101-45E

Sunk One Sailing Schooner, heavily laden. Estimated 250 tons.

Damage Determined
By Saw Target sink.

DETAILS OF ACTION:

Battle surfaced at 3100 yards range. Opened fire with 5",
40MM, and 20MM. Saw three 5" hits, number of 40 and 20MM
hits undetermined. Closed target to 1000 yards for final
hit. Spotting in range by ST radar, in deflection at the
gun. The 5" gun really tore him apart.

Ammunition expended: 24 rounds of 5"/25 cal., 90 rounds of
40MM, 135 rounds of 20MM.

-29-

— page 70 —
U. S. S. BUMPER(SS333)

C-O-N-F-I-D-E-N-T-I-A-L
WAR PATROL REPORT #2

USS BUMPER (SS333) GUN ATTACK #3 PATROL NO. 2
Time: 0915 (Item) August 5, 1945 Lat. 1-36S Long. 105-24E.

Sunk One MEDIUM LUGGER, estimated 75 tons.

Damage Determined Saw LUGGER settle at his anchorage until only masts and
By part of superstructure showing. Saw five 5" hits, two
of which were after he had settled to the bottom.

DETAILS OF ACTION:

LUGGER was anchored in cove behind rocks. Fired from the
10 fathom curve, range 3800 yards. Submarine stopped, to
improve fire control. Saw five hits.

Ammunition Expended: 24 rounds 5".

-31-

— page 71 —
U. S. S. BUMPER(SS333)

C-O-N-F-I-D-E-N-T-I-A-L
WAR PATROL REPORT #2

I. MINES:

     None encountered.

J. ANTI-SUBMARINE MEASURES AND EVASION TACTICS:

     Nothing new in AS measures was encountered, unless a lack of aggression
on the part of the KAMIKAZE is a new AS measure. His depth charging was
short, spiritless, and ineffective.
     The DD positively had a torpedo detector. His Mast head height was
measured twice, came out 72 and 75 feet. He made 200 RPM for 12½ knots.
Echo ranging on 17.5 kcs. His zig plan was a variable, constant helm -
some turns being sharp, others being long and slow.
     As mentioned in the narrative, our DCRE (Depth Charge Range Estimator)
proved its value.

K. MAJOR DEFECTS AND DAMAGES:

     (a) Hull and Machinery

          1. No. 2 periscope hoisting pistons developed an oil leak by the
             piston rings allowing oil to overflow through the vent lines,
             restricting the use of the scope by requiring the scope to be
             put in the secured position. This defect has existed for the
             past six months with past repairs unsuccessful. It is believed
             that the only solution is a new hoisting cylinder and realign-
             ment of piston and cylinders.

          2. Aug. 9, 1945: Cracked the liner of unit #13 of #1 main engine.
             Engine hours: 1750. Cause: Unknown.

          3. Aug. 2, 1945: Head stud on #5 unit of #2 main engine. Engine
             hours 1250. Cause: defective material.

          4. Aug. 4, 1945: Water was discovered in starboard reduction gear
             sump. Cause: A loose flange on the suction side of lub oil pump.

-32-

— page 72 —
U. S. S. BUMPER(SS333)

C-O-N-F-I-D-E-N-T-I-A-L
WAR PATROL REPORT #2

(b) Ordnance and Gunnery

    1.  Continued trouble was experienced this patrol with the 5"/25 foot
        firing mechanism. Although operating satisfactory during training
        gunnery practices, upon departure for patrol, and upon frequent
        nightly checks, it failed to work during two out of three gun ac-
        tions. Upon the first occasion it did not appear to have suffi-
        cient throw, possibly caused by contraction of the liquid while
        submerged prior to battle surfacing. During the third gun action
        the bellows push rod bent just to the left of the adjusting nut
        and lock-nut and firing was continued by hand.

    2.  During the torpedo attack #2, just prior to the intended firing
        point, the forward gyro angle setter went out of synchronism and
        drove hard into the stop. Upon inspection later it appeared that
        relay A had arced badly and stuck. An attempt was made later to
        induce the casualty to occur again with the original relay but it
        did not occur. When a spare relay was substituted it stuck once,
        apparently mechanically, because it did not open when all power was
        secured. A touch of the finger released it. The cause for this
        casualty has not been definitely determined. Daily tests when un-
        derway since commissioning had never uncovered any similar casualty.

L. RADIO:

    No damages or defects.

M. RADAR:

    SJ-1/ST: The SJ and the ST radars maintained their remarkable high stand-
             ard of performance throughout the patrol. Only routine defects
             were encountered, such as tube failures and detuning, with the ex-
             ception of the SJ training gear box, which broke so that it was
             impossible to shift from power to hand train. The SJ gave ranges
             of 10,000-15,000 yards on submarines, and an exceptional range of
             104 miles on the island of BALI. The ST gave ranges up to 10,000
             yards on sailing vessels; unusual weather conditions gave ranges
             on the Destroyer attacked from 18,500 yards in, with seven feet of
             periscope exposed.

    SD      : The SD also performed very well during the patrol. Nothing other
             than tube failures were encountered.

-33-

— page 73 —
U. S. S. BUMPER(SS333)

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

WAR PATROL REPORT #2

N. SOUND GEAR AND SOUND CONDITIONS:

     Overall performance of all sonar equipment was very good this patrol. No
     casualties were experienced.

     On Friday July 13 JP picked up a contact which later was verified as a
     British submarine. Range was later calculated to be 30,000 yards, an
     exceptional range for this type of target.

     Sound conditions as a whole can only be classed as poor to fair. On 19
     July during torpedo attack on destroyer in company with smaller ships
     maximum range for both sonic and supersonic equipment was from 4000 to
     5000 yards.

O. DENSITY LAYERS:

     The following density layers were obtained:-

DATE        LAT.        LONG.        LAYER DEPTH        REMARKS
7/10/45     14-44.2N    120-08.7E    100 ft.            4 deg. temp change for
                                                        increase of 100 ft.

7/19/45     6-56.5N     103-41E      20 ft.             3 deg. temp change for
                                                        increase of 100 ft.

7/19/45     6/55N       103-55E                         Isothermal Waters
7/20/45     6-00N       104-50E      20 ft.             3 deg. temp. change for
                                                        40 ft.
7/22/45     8-38N       108-44E                         Isothermal Waters
8/2/45      1-04N       105-20E                         Isothermal Waters
8/11/45     8-00S       115-13E                         Isothermal Waters

P. HEALTH, FOOD AND HABITABILITY:

     The health of the Officers and crew was excellent. The food, though not
     of great variety, was very good.

                                   -34-

— page 74 —
U. S. S. BUMPER(SS333)

C-O-N-F-I-D-E-N-T-I-A-L
WAR PATROL REPORT #2
Q. PERSONNEL
  a. 17 men were detached after previous patrol.
  b. 77 men on board during patrol.
  c. 55 men qualified at start of patrol.
  d. 13 men qualified at end of patrol.
  e. 9 men unqualified making first patrol.
  f. 18 men advanced in rating.
  g. General Comment:
    The performance of duty of all hands met the high standard of sub-
    marine warfare. During the BATTLE OF SIAM GULF they proved themselves-
    I was proud to be their Commanding Officer.

R. MILES STEAMED - FUEL USED:
  Subic Bay to Area | 1290 mi. | 14670 gal.
  In Area | 1330 mi. | 14970 gal.
  Area to Subic Bay | 1188 mi. | 14000 gal.
  Subic Bay to Area | 1341 mi. | 20290 gal.
  In Area | 2735 mi. | 28220 gal.
  Area to Fremantle | 1540 mi. | 28000 gal.

S. DURATION:
  Days enroute to Areas | 8
  Days in Areas | 20
  Days enroute to bases | 9
  Days Submerged | 4
  TOTAL 37

T. FACTORS OF ENDURANCE REMAINING:
  TORPEDOES | FUEL | PROVISIONS | PERSONNEL FACTOR
  20 + 3 | 39,700 | 30 | 10

Limiting factor this patrol: OPORD 92-45

-35-

— page 75 —
U. S. S. BUMPER (SS333)

C-O-N-F-I-D-E-N-T-I-A-L
WAR PATROL REPORT #2

U. COMMUNICATIONS, RADAR AND SONAR COUNTERMEASURES:

   1. Radar Countermeasures:
      No evidence of enemy radar countermeasures were noted.
      Only one radar was observed on the SPA/APR.
      0700I Lat. 8-05S 160 mc. 5 micro. sec. 400 cps
      8/9/45 Long. 115-10E freq. pulse width PRR

   2. COMMUNICATION COUNTERMEASURES:
      No communication countermeasures were encountered. Interference was
      slight and was not considered intentional. Some fading was noticed of
      NVB signal in vicinity of barrier but was not great enough to cause
      any major difficulties.

   3. SONAR COUNTERMEASURES: None encountered.

V. REMARKS:
   NONE.

— page 76 —
U. S. S. BUMPER(SS333)

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

WAR PATROL REPORT #2

U. COMMUNICATIONS, RADAR AND SONAR COUNTERMEASURES:

1. Radar Countermeasures:

No evidence of enemy radar countermeasures were noted.

Only one radar was observed on the SPA/APR.

0700I Lat. 8-05S 160 mc. 5 micro sec. 400 cps.
/9/45 Long. 115-10E. freq. pulse width PRR

2. COMMUNICATION COUNTERMEASURES:

No communication countermeasures were encountered. Interference was
slight and was not considered intentional. Some fading was noticed of
NVB signal in vicinity of barrier but was not great enough to cause
any major difficulties.

3. SONAR COUNTERMEASURES: None encountered.

V. REMARKS:

Should this be the BUMPER'S last War Patrol (which we all pray it will)
we lay claim to the title of the last submarine to fire a full load of
torpedoes at the enemy.

— page 77 —
U. S. S. LUPER(SS333)

C-O-N-F-I-D-E-N-T-I-A-L
WAR PATROL REPORT #2

COMMUNICATIONS, RADAR AND SONAR COUNTERMEASURES:

1. Radar Countermeasures:
   No evidence of enemy radar countermeasures were noted.
   Only one radar was observed on the SFA/APR.
   0700I Lat. 8-05S 160 mc. 5 micro sec. 400 cps
   8/9/45 Long. 115-10E freq. pulse width PRR

2. COMMUNICATION COUNTERMEASURES:
   No communication countermeasures were encountered. Interferences was
   slight and was not considered intentional. Some fading was noticed of
   NVE signal in vicinity of barrier but was not great enough to cause any
   major difficulties.

3. SONAR COUNTERMEASURES: None encountered.

V. REMARKS:
   NONE.

— page 78 —
FC5-30/A16-3
Serial: 0157
C-O-N-F-I-D-E-N-T-I-A-L
[HANDWRITTEN: FIRST ENDORSEMENT to]
[HANDWRITTEN: COMSUBPAC (39)]
[HANDWRITTEN: Report of]
[HANDWRITTEN: War Patrol]

SUBMARINE SQUADRON THIRTY

Ce
Care of Fleet Post Office,
San Francisco, California,
21 August 1945.

From: The Commander Submarine Squadron THIRTY.
To : The Commander in Chief, UNITED STATES FLEET.
Via : (1) The Commander Submarines, SEVENTH FLEET.
(2) The Commander in Chief, SEVENTH FLEET.

Subject: U.S.S. BUMPER (SS333) - Report of Second War Patrol.

1. The second war patrol of the BUMPER under the command of
Commander J. W. Williams, Jr., U.S. Navy, was conducted in the Gulf of
Siam, off Singapore and Java Sea areas. Patrol was of thirty-seven days
duration with twenty days spent in the area. The BUMPER returned to Subic
on 24 July for a torpedo reload.

2. Torpedo Attack No. One; was a day submerged attack on a small
coastal tanker, 800 tons (MC) anchored off LEM CHONG PRAU. Three Mk-18 tor-
pedoes were fired on 130° track, depth set zero feet with a torpedo run of 1700
yards. Two torpedoes hit and target was completely demolished.

Torpedo Attack No. Two; was a day submerged attack using ST radar
on a convoy consisting of two small tankers, one small AK, several PC escorts
and a Kamikaze destroyer patrolling 4000 yards ahead. Three Mk-18 torpedoes
were fired from bow tubes at the destroyer on an average track of 105° star-
board, depth set five feet, large gyro angles and an average torpedo run of
6000 yards. All torpedoes missed. Casualty to gyro setter prevented shooting
earlier. Misses are accredited to large gyro angles and short torpedo run.
Six depth charges were dropped by the destroyer with no damage to BUMPER.

Torpedo Attack No. Three; After an end around lasting six hours,
with BRILL and BUGARA both attacking the convoy with negative results, the
BUMPER dove 15,000 yards ahead of the convoy to conduct an ST radar attack.
Thirty-five minutes later six Mk-18 torpedoes were fired at the Kamikaze
destroyer from bow tubes on a 115° port track, gyros 80° left, depth set four
feet with a torpedo run of 2150 yards. One minute after firing the destroyer
turned away, presenting a 180° angle on bow and all torpedoes missed. This
destroyer was undoubtedly equipped with a torpedo detector and knew how to
use it.

Torpedo Attack No. Four. BUMPER surfaced and trailed the convoy
after missing on last attack. The BUMPER then commenced a quarter approach on
main target group and chose the nearest pips as targets. This was a surface SJ
radar attack using radar bearings and ranges as targets could not be seen due to
reduced visibility. Four Mk-18 torpedoes were fired from bow tubes at nearest
target, on a 120° port track, depth set 5 feet, small gyro angles with a torpedo
run of 2250 yards. All torpedoes missed. The BUMPER then fired 3 Mk-18

- 1 -

— page 79 —
Ce
SUBMARINE SQUADRON THIRTY

Care of Fleet Post Office,
San Francisco, California,
21 August 1945.

FC5-30/A16-3

Serial: 0157

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

FIRST ENDORSEMENT to
USS BUMPER (SS333)
Report of Second War Patrol.

Subject: U.S.S. BUMPER (SS333) - Report of Second War Patrol.

torpedoes from stern tubes at next target on a 100 port track, depth set five
feet, gyros 38° left with a torpedo run of 2300 yards. All torpedoes missed.

Torpedo Attack No. Five. Two hours later the BUMPER was in posi-
tion for a night surface radar attack using TBT bearings. The last three MK-18
torpedoes were fired from stern tubes at a small tanker, 1200 tons (EC), on a
125° starboard track, gyros 85° left, depth set 3 feet with a torpedo run of
2500 yards. The last torpedo hit and the tanker sank.

3. Gun Attack No. One: On 15 July a heavily laden sailing schooner
250 tons (EU) was attacked with all guns. Opening range was 3100 yards; three
5" hits and numerous 40mm and 20mm were obtained and target sank in 14 minutes.

Gun Attack No. Two: While surface patrolling off entrance to
KLABAT BAY, a small tug with barge in tow was contacted moving along the coast.
When the tug sighted the BUMPER he slipped his tow and headed for the beach.
The BUMPER opened fire with 5" and 40mm and sank both tug and barge.

Gun Attack No. Three: About two hours after the above attack
a lugger was contacted at anchor. The BUMPER sank the lugger with 5 hits from
19 rounds 5" at a range of 3900 yards.

4. The BUMPER returned from patrol very clean and in excellent
material condition. Refit will be completed in normal time. The morale of
this fighting ship is high.

5. The Squadron Commander congratulates the Commanding Officer,
officers and crew of the BUMPER upon the completion of this extremely aggres-
sive and smartly conducted patrol, on the excellent planning and intelligent
use of all weapons and the damage inflicted upon the enemy.

[SIGNATURE: U. C. Smith]
U. C. SMITH.

— page 80 —
11/wn
FS24-71/A16-3
UNITED STATES NAVY
Serial 0560-A
C-O-N-F-I-D-E-N-T-I-A-L
11 September 1945

SECOND ENDORSEMENT to: [HANDWRITTEN: 232 From 2055]
USS BUMPER Conf. Ltr. A4, [HANDWRITTEN: 18 Sep 1945]
Serial 013, dated 15
August 1945. Report of [HANDWRITTEN: 22]
Second War Patrol. [HANDWRITTEN: 2-3-3]

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

Subject: U.S.S. BUMPER (SS333) - Report of Second War Patrol
(10 July to 15 August, 1945).

1. The Second War Patrol of the BUMPER was conducted
in the GULF of SIAM and JAVA SEA Areas, under the command of
Commander J. W. WILLIAMS, Jr., U.S.N.

2. The highlight of the patrol was the tenaciousness
and fighting spirit with which the BUMPER chased and repeatedly
attacked with torpedoes a convoy consisting of two small tankers,
a freighter, several PC escorts and a KAMIKAZE destroyer. Unfort-
unately, of nineteen torpedoes fired in four attacks only one
hit was obtained and this sank a 1200 ton tanker. A gyro setter
casualty, an alert destroyer and the shallow draft of the targets
are considered to be mainly responsible for the other torpedoes
missing. A small tanker at anchor was sunk with torpedoes and
three well executed gun attacks put four small ships on the
bottom.

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

4. The Force Commander congratulates the Commanding
Officer, Officers and Crew on this well conducted, aggressive
patrol in which the following damage was inflicted on the enemy:

S-U-N-K

1 Small Coastal Tanker (EC) 800 Tons
1 Small Tanker (EC) 1200 Tons
*1 Large Sailing Schooner 250 Tons
*1 Tug and Barge 200 Tons
*1 Medium Lugger 75 Tons
Total 2525 Tons
* Sunk by gunfire.

[STAMP: Office of the Chief of Naval]
[STAMP: FLEET MAINTENANCE]
[STAMP: 1 - OCT 1945]
[STAMP: RECEIVED]
[STAMP: NAVY DEPARTMENT]

JAMES FIFE.

- 1 -

— page 81 —
FE24-71/L16-3 UNITED STATES NAVY
Serial 0560-A
C-O-N-F-I-D-E-N-T-I-A-L 11/wn
11 September 1945

SECOND ENDORSEMENT to:
USS BUMPER Conf. Ltr. 44,
Serial 013, dated 15
August 1945. Report of
Second War Patrol.

Subject: U.S.S. BUMPER (SS333) - Report of Second War Patrol
(10 July to 15 August, 1945).

DISTRIBUTION:

Cominch (3)Direct Co-SubPacAdCom (1) (airmail)
Vice Opnav (2)Direct ComSubRon-22 (2)
Vice Opnav Op-23c (1) ComSubRon-26 (2)
ComlstFlt (1) ComSubRon-30 (2)
Com2ndFlt (1) DivComsSubRon-22 (1 ea)
Com7thFlt (2) DivComsSubRon-26 (1 ea)
ComSubslstFlt (30) DivComsSubRon-30 (1 ea)
ComSubs2ndFlt (4) S/M School, N.L. Conn. (2)
CTF-71 (7) Comdt. NYD, Puget Sound (1)
CTG-71.5 (2) Subad, Mare Island (2)
S/Ms 7thFlt (1)

[SIGNATURE: J B Miller]
J. B. MILLER,
Flag Secretary.

- 2 -

— page 82 —
END OF REEL
JOB NO. [HANDWRITTEN: F-108]
[HANDWRITTEN: AR-94-78]

||||
|---|---|---|
| 1.0 | 2.8 | 2.5 |
| | 3.2 | 2.2 |
| | 3.6 | 2.0 |
| 1.1 | 4.0 | 1.8 |
| 1.25 | 1.4 | 1.6 |

THIS MICROFILM IS
THE PROPERTY OF
THE UNITED STATES
GOVERNMENT

[IMAGE: Department of Defense Seal with text "DEPARTMENT OF DEFENSE" and "UNITED STATES OF AMERICA"]

MICROFILMED BY
NPPSO-NAVAL DISTRICT WASHINGTON
MICROFILM SECTION

D-52264