U.S.S. CREVALLE (SS-291) — war patrol report SS-291_CREVALLE_Part2.pdf

— page 1 —
U.S.S. CREVALLE (SS291)
WAR PATROL NO. 5.
C-O-N-F-I-D-E-N-T-I-A-L

0624-15 (Cont'd).
- U.S. N.R., and one lookout, FRITCHEN, W.L., GM2c., U.S.N.R.,
  were washed overboard. Ship dived to 190 feet with an angle
  that reached 42 degrees down. Upper conning tower hatch closed
  at 150 feet.

0626 (Approx.)
- Surfaced backing full. Pump room was flooded completely.
  Conning tower had been flooded to armpit depth and on the down
  angle the control room had water level above the forward battery
  room door.

0626
- Stationed machine gun crews immediately and maneuvered to pick
  up men in water. All IC power was lost but telephone communicat-
  ion was normal. Started bucket brigade bailing pump room immed-
  iately.

0633
- Recovered FRITCHEN, W.L., GM2c., U.S.N.R., from water. Lieut-
  enant BLIND's head was seen as we surfaced and it was within
  100 yards of FRITCHEN. While making approach it was lost to
  view and never again seen.

0634
- Lay to for ten minutes searching area then backed down a little
  to put us in position of lost man.

0644
- Began search of area circling with full rudder, attempting to
  keep same position.

0800
- Decided to dive from/aircraft contact using hand power. Stopped
  engines and closed inductions.

0945
- Noticed we were being set down toward POSTILLON ISLANDS. Came
  to course 325°T. to clear at 1/3 speed on the battery. For
  remainder of the day we stayed in the general vicinity but
  Lieutenant BLIND was never again seen.

1205
- Pump room about 2/3 dry and bucket brigade about exhausted.
  Finally got trim pump running. With many stoppages this ran for
  an hour and pumped water down to level of deck plates then it
  gave up for good. Began salvage of each electrical unit as soon
  as water level receded from it. Priority list established (1)
  Radio transmitter (2) aux. gyro (3) I.C. power (4) Trim pump.
  We had 1400# of air in three banks, 2000# in one and 2700# in
  another. With 16 torpedoes forward we had lots of air.

1805
- Set course 120°T. at 16 knots on 3 engines, steering by tank
  compass.

2115
- Changed course to 145°T.

- 4 -

— page 2 —
U.S.S. CREVALLE (SS291)
W.R PATROL NO. 5.
C-O-N-F-I-D-E-N-T-I-A-L

12 September, 1944.
0115 - Sighted shape of a ship fairly close bearing 055°T. with zero
       angle on bow. Turned to 200° to avoid. Ship appeared to be
       a two-masted sailing vessel. (Ship contact #3).

0150 - Changed course to 105°T. This would head us between PALU
       ISLAND and SUKUR ISLAND.

0347 - Changed course to 110°T.

0445 - Dived on course 110°T. in hand power without trouble. Planed
       down to 200 feet for the day. Desired to let the men get some
       rest and also to avoid our own and enemy aircraft over the
       barrier. Although a quick dive was feasible at all times, we
       were without alarms and securing of engines except in dire emer-
       gency was a process of about one minute. In these circumstances
       with our limited air supply considered daylight surface running
       most unwise.

1812 - Surfaced five miles due east of PALU ISLAND. Changed course to
       pass 5 miles west of SUKUR ISLAND then north and east between
       KAUNA ISLAND and ANGELICA SHOAL at maximum speed.

2100 - Fourteen miles south of MADU ISLAND, changed course to 087°T.

2130 - Passed KAUNA ISLAND abeam to port, distance 7 miles.

13 September, 1944.
0208 - Sighted native sailboat close aboard on port bow. Swung right
       with full rudder and avoided.

0214 - Resumed base course.

0500 - Dived in hand power. Ran at 200 feet. Efforts to get transmitter
       motor generator back in commission by washing and drying had failed.
       Motor ran but high voltage would not build up. Began replacing
       armatures and coils. In meanwhile we tapped 1000 volts from sound
       motor generator in forward torpedo room. This gave us a little
       output on low frequency but nothing on high frequency. This unit
       also furnished us AC power for radio receivers and could have
       given us jury rig IC power if necessary. We preferred, however,
       to try to hook it to transmitter.

1600 - Raised #1 periscope by hand and left it up using cable clamps as
       preventers.

1802 - Surfaced. Set course to pass ten miles north of WETAR ISLAND.

14 September, 1944.
0030 - Changed course to 119°T. to head four miles northeast of WETAR
       for passage between WETAR and ROMANG.
       - 5 -

— page 3 —
U.S.S. CREVALLE (SS291)
WAR PATROL NO. 5.
C-O-N-F-I-D-E-N-T-I-A-L

0130 - Sighted WETAR ISLAND. Changed course to 161°T. to close.
0141 - Began passage of strait between WETAR AND ROMANG ISLANDS running
         five miles off WETAR.
0305 - Changed course to 134°T. to make passage between ROMANG and KISAR
         ISLANDS, five miles northeast of KISAR.
0442 - Dived.
0710 - Changed course to 150°T. to pass between LETI ISLAND and TIMOR
         ISLAND.
1052 - Changed course to 180°T.
1415 - Cleared passage between LETI and TIMOR ISLANDS.
1800 - Surfaced. Set course 157°T. at maximum speed running down bombing
         restriction lane. Our transmitter failed to function either on
         rebuilt motor generator or on sound motor generator. Trouble now
         suspected in transmitter itself.

15 September, 1944.
0609 - Sighted U.S.S. BASSFISH north bound. Closed and asked him to send
         message to Darwin notifying them of our return. Gave E.T.
         rendezvous as 1300 (H).
1003 - Sighted R.A.A.F. aircraft on starboard hand. Believed to be a
         Hudson. Exchanged recognition. (Aircraft contact #4).
1027 - Sighted tops of two corvettes bearing 169°T.
1245 - Sighted B-24 bomber who went down starboard side well clear. He
         would not answer recognition signal. (Aircraft contact #5).
1250 - Sighted tops of H.M.A.S. MEDEA bearing 080°T.
1300 - B-24 bomber turned and ran over us. Pulled both flares but don't
         believe he saw them.
1323 - Cleared message to N.O.I.C., Darwin, through MEDEA. Began approach
         to entrance.
1510 - Picked up pilot inside boom.
1559 - Moored port side to U.S.S. COUCAL, Port Darwin, Australia. Sent
         CREVALLE serial FOUR informing ComSubs of damage and stating we
         would leave as soon as we had a gyro, IC power and a transmitter.

- 6 -

— page 4 —
U.S.S. CREVILLE (SS291)
WAR PATROL NO. 5.
C-O-N-F-I-D-E-N-T-I-A-L

16 September, 1944.
0330 - Received message from ComSubs stating that no transportation was
available for spare parts. Decided we should depart as soon as
we could get a transmitter hooked up. Had obtained a portable
transmitter from the base, which COUCAL was installing. COUCAL
also installed a spare motor generator to give us IC power on
vital circuits. We were using our sound motor generator for
the new transmitter.

0630 - Sent CREVALLE serial FIVE stating that we would depart at 1600
with a transmitter and IC power but without gyro or refrigeration
unless ordered otherwise.

1613 - Underway for Fremantle, Australia.

1833 - Passed point JAMB heading down bombing restriction lane at
fifteen knots.

2103 - Received orders to return to Darwin. Changed course for point
JAMB.

2313 - Sighted flare astern. Stopped. Secured engines, our smoke was
obscuring light.

2315 - Picked up bright light astern. Went ahead standard on battery.
Light seemed to be from aircraft. We challenged and light went
out.

2320 - Changed to standard speed on one engine.

2325 - Sighted light again. Gave aircraft challange. Light blinked
what might have been reply and went out. (Reply was letter "S").
(Aircraft contact #6).

2345 - Changed course to 117°T. heading for first sea bouy.

17 September, 1944.
0010 - Stopped in vicinity of first sea bouy.

0055 - Sighted lights of ship on horizon, bearing 120°T.

0136 - Exchanged calls with COUCAL who stated he was to be our escort to
Fremantle.

0138 - Set course 260°T. following bombing restriction lane, in company
with COUCAL at speed 14 knots.

- 7 -

— page 5 —
U.S.S. CREVALLE (SS291)
WAR PATROL NO. 5.

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

19 September, 1944.
1810 - Sighted tops of H.M.A.S. ADELAIDE bearing 270°T.
1835 - COUCAL departed, fell in astern of H.M.A.S. ADELAIDE following
       bombing restriction lane to Fremantle, Australia, at sixteen
       knots.

20 September, 1944.
2100 - H.M.A.S. ADELAIDE altered course to eastward to avoid friendly
       merchantman. Followed but never sighted merchantman.

22 September, 1944.
1116 - Sighted Rottnest Island Light. Began entrance of Fremantle,
       Australia.
1414 - Moored Fremantle Harbor alongside U.S.S. EURYALE.

- 8 -

— page 6 —
U.S.S. CHEVALLE (SS291)
R PATROL NO. 5.
C-O-N-F-I-D-E-N-T-I-A-L

C. WEATHER:
No comment.

D. TIDAL INFORMATION:
No comment.

E. NAVIGATION AIDS:
No comment.

F. SHIP CONTACTS:
No. | Time | Lat. | Long. | Type(s) | Initial | Est. Course | How con- | Remarks
    | Date |      |       |         | Range   | Speed       | tacted    |
1.  | 2025 | 6 - 31 S. | 120-45 E. | Small   | 8000    | 315         | SJ Radar  | Not
    | 9/10/44 |           |           | Craft   | .       | Sp. 3       |           | Sighted
2.  | 2034 | 6 - 33 S. | 120-44 E. | Small   | 6000    | 315         | SJ Radar  | Not
    | 9/10/44 |           |           | Craft   |         | Sp. 3       |           | Sighted
3.  | 0115 | 7 - 38 S. | 120-09 E. | 2-Masted| 4000    | 230         | Sight     | No Pos-
    |      |           |           | Sailing |         | Sp. 5       |           | itively
    |      |           |           | Ship    |         |             |           | Identified.

G. AIRCRAFT CONTACTS:
CONTACT NUMBER | : 1      : 2      : 3      : 4      : 5      : 6
Date           | : Sept 2 : Sept 8 : Sept 8 : Sept 15: Sept 15: Sept 16
Time (Zone) Plus 8 | : 1215   : 1245   : 1523   : 1003   : 1245   : 2325
Position Lat.  | : 2-50S. : 10-56S. : 10-29S. : 12-10S. : 12-14S. : 12-10S.
Long.          | : 113-05E.: 128-48E.: 128-33E.: 123-37E.: 130-30E.: 130-45E.:
Speed          | : 17     : 17     : 17     : 17     : 17     : 17
Course         | : 351°   : 335°   : 335°   : 140°   : 140°   : 090°
Trim           | : Surf.  : Surf.  : Surf.  : Surf.  : Surf.  : Surf.
Minutes Since Last | : 0      : 0      : 0      : 0 D Out of
SD Radar Search | : -      : -      : -      : -      : Commission

- 9 -

— page 7 —
U.S.S. CREVALLE (SS291)
PATROL NO. 5.

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

| Number | : 1 | : 1 | : 1 | : 1 | : 1 | : 1 |
|---|---|---|---|---|---|---|
| Type | :Catalina | :Unknown | :Unknown | :Hudson | :B-24 | :Unknown |
| A | Probable Mission | : Pat. | :Unknown | :Unknown | : Pat. | :Unknown | : Pat. |
| I | How Contacted | : Sight | :SD Radar | :SD Radar | : Sight | : Sight | : Sight |
| R | Initial Range | : 6 Mi. | : 16 Mi. | : 8 Mi. | : 15 Mi. | : 15 Mi. | : 4 Mi. |
| C | Elevation angle | : 4° | :Unknown | :Unknown | : 2° | : 2° | : 2° |
| R | Range & Relative | : 6 Mi. | :Unknown | :Unknown | : 8 Mi. | : 10 Mi. | : |
| A | Bearing of Plane | : | : | : | : 020 | : 220 | : |
| F | When it Detected | : | : | : | : | : |

— page 8 —
U. S. C.M.I.L. (35291)
P TROL NO. 5.
C-O-N-F-I-D-E-N-T-I-A-L

K. MAJOR D.M.G.:

A surfacing accident on 11 September, 1944, caused the complete flood-
ing of the Pump Room and partial flooding of both Control Room and Conning
Tower. The extent of damage caused by the flooding is not yet due to
failure of material.
The machinery that was put completely out of commission:-

Master Gyro Compass
Auxiliary Gyro Compass
Both I.C. Motor Generators
200# Air Compressor
Refrigeration Unit and both
Air Conditioning Units.
Periscope Hoist Motors and

Transmitter Motor Generator
Trim and Drain Pumps
Low Pressure Blower
Main Hydraulic Plant
Both Sound and Radar
Sound Training Motor Generators
SD Antenna Hoist Motor

The main engines of Linton 246-A main engines continued to be most unsatis-
factory. These engines are not equipped with chrome plated liners. Lub oil
consumption of main engines 1 and 2 averaged 3.0 gallons per hour while en-
gines 3 and 4 averaged 2.2 gallons per hour. Main engines 3 and 4 were over-
hauled at the last refit. Three liners were renewed with reconditioned units
because of excessive clearance. Inspection of the repair sheets shows that
all liners are practically worn out either over maximum allowed or on the ragged
edge. It is believed that the elimination of smoking will be accomplished only by renewal of
present liners with chrome plated units and installation of new type rings. It
is urgently recommended that this be undertaken at the first opportunity.
The insulation resistance of the forward battery cables continued to
go down. After normal charge at Port Darwin, the forward battery negative
feeder read 30,000 ohms. Following an equalizing charge on 19 September, 1944,
an attempt was made to take readings in accordance with BuShips Ltr. SS/S62-2
(3660u) EN28/A2-11 dated November 21, 1942.
The following data was obtained prior to the disconnect
switches:-

| Cable    | Length  | Ave. Temp. | Res.       |
|||||
| Positive | 150 ft. | 98°        | 90,000 ohms. |
| Negative | 150 ft. | 98°        | 50,000 ohms. |

However, the curve of minimum allowable values is not available on
this ship it is believed that these readings were very close to the lower limit
if not below it.
The Commanding Officer further wishes to point out that on commis-
sioning these cables read 2.0 megs positive and 1.5 megs negative. This condition
has been progressively worse ever since.

L. RADIO:

Transmitter motor generator flooded out with flooding of pump room.

- 11 -

— page 9 —
U.S.S. CREVALLE (SS291) C-O-N-F-I-D-E-N-T-I-A-L
WAR PATROL NO. 5.

Motor generator was washed with fresh water and dried with a hot air blower.
Motor ran but high voltage would not build up. Both generator armatures and
old field coils were then renewed and proper voltage obtained though control
was precarious. Attempts to use the QC sound motor generator as a source of
power failed. At the time it was thought that insufficient plate voltage
(1000 V) was present. However, even with normal functioning of TBL motor
generator no emission was possible on high frequency. Upon arrival Darwin
a portable transmitter was installed and no further attempts were made to
operate the TBL pending complete investigation and overhaul. The bottom
portion of the transmitter was flooded at the time of the casualty.

M. RADAR:

The SJ radar unit was partially flooded due to the accident. This
unit was washed out with fresh water, wiped out with alcohol and blown dry
with a portable blower. No attempt has been made to operate this equipment
due to lack of power supply.
As far as can be determined SD radar was not affected by casualty
excepting the hoist motor.

N. SOUND GEAR AND SOUND CONDITIONS:

Sound training control coils in conning tower and sound training
motor generator were flooded out. These were washed with fresh water and
dried with a portable blower. No attempt has been made to operate this
equipment.

O. DENSITY LAYER:

No comment.

P. HEALTH, FOOD AND HABITABILITY:

No comment.

Q. PERSONNEL:

(a) 74
(b) 49
(c) 49
(d) 8
(e) 0

The performance of all hands left nothing to be desired.
The actions of YEAGER, Robert L., MOMM1c., U.S.N., on the morning
of the casualty have been described in separate SECRET correspondence. With
the boat taking a sharp down angle and the control room flooded, this man
manned the phone in the Crew's Space. Unable to get in communication with an
officer, and determining that standard speed was still running up, he

- 12 -

— page 10 —
C-O-N-F-I-D-E-N-T-I-A-L

U.S.S. CHEVALLE (SS291)
WAR PATROL NO. 5.

gave the order to maneuvering room to back full. YEAGER has been a battle
submariner since commissioning. His coolness and initiative in giving
the order which he knew to be proper, were greatly instrumental in saving
the boat.

R. MILES STEAMED - FUEL USED:

     Fremantle to Area - 2405.5 miles - 30,971 gallons.
     In Area - 1435 miles - 16,044 gallons.
     Area to Fremantle - 2386 miles - 24,500 gallons.

S. DURATION:

     Days enroute to Area 7
     Days in Area 6
     Days enroute to Base 8
     Days Submerged 3

T. FACTORS OF ENDURANCE REMAINING:

     Torpedoes Fuel Provisions Personnel

     24 86,674 Dry 65 Fresh 3 60

     Limiting factor this patrol - Flooding of Pump Room.

U. RADIO AND RADAR COUNTERMEASURES:

     No comment.

V. REMARKS:

     (a) No enemy minesweeping activity was observed.
     (b) No traffic lanes or focal points were observed.
     (c) The report of this patrol is perfunctory and the Commanding
     Officer very much desires that this not be considered a full war
     patrol. The assigned area was not reached and only six days were
     spent north of the barrier, four of these in a damaged condition.
     (d) No comment concerning the surfacing accident which caused the
     termination of the patrol is considered proper here. This entire
     accident is the subject of separate SECRET correspondence.
     (e) The continuous smoking of main engines and the progressive
     deterioration of main storage battery cable resistance are considered
     serious military defects which should be corrected at the earliest
     opportunity.

- 13 -

— page 11 —
FC5-18/A16-3/(11)
Serial 0189
CONFIDENTIAL

FIRST ENDORSEMENT to
U.S.S. CREVALLE (SS291),
Report of Fifth War Patrol.

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

Subject: U.S.S. CREVALLE (SS291), Report of War Patrol Number Five.

1. The fifth war patrol of the U.S.S. CREVALLE was terminated
by an operational casualty in the Flores Sea enroute to patrol area, eleven
days after leaving Fremantle, W.A.

2. The casualty which resulted in completely flooding the
pump room, with partial flooding of the control room, put all the elec-
trical machinery in these compartments entirely out of commission. The
Officer-of-the-Deck, Lieutenant H.J. Blind, U.S.N.R., was lost overboard.

3. A complete separate report covering the accident has been
submitted to Commander Submarines, SEVENTH FLEET, and a Board of Invest-
igation has been convened by that officer to determine the cause(s) of the
casualty.

4. The U.S.S. CREVALLE will be refitted by the U.S.S. EURYALE
at Fremantle, W.A., upon the completion of which, it is expected CREVALLE
will proceed to Navy Yard, Mare Island for overhaul.

5. The actions of the officers and men in handling the casualty
is highly commendable. This is especially true in the case of Robert L.
YEAGER, MoMM1c, U.S.N.R., who quickly and correctly analyzed the dangerous
situation and on his own initiative ordered the motors to back full. At
this time the conning tower and control room were unable to communicate
with the maneuvering room. The motors were going ahead standard and the
boat was being driven down with a large down angle. By his prompt action
YEAGER contributed greatly to saving the ship.

6. There is strong evidence to support the belief that Lieut-
enant Blind sacrificed his life by staying at the conning tower hatch
until he had unlatched it thus allowing it to close with the flow of water,
and thereby enabling his shipmates within the boat to bring her back to the
surface.

The Squadron Commander joins the commanding officer, his
officers and crew in deeply mourning the loss of Lieutenant Blind.

[HANDWRITTEN: S.S. 18 / A16-3 / (11)]
[SIGNATURE: ELIOT H. BRYANT.]
[HANDWRITTEN: 1]

SUBMARINE SQUADRON EIGHTEEN
Vx
Care of Fleet Post Office,
San Francisco, California,
27 September 1944.

— page 12 —
F24-71/A16-3
Serial 01180
C-O-N-F-I-D-E-N-T-I-A-L

UNITED STATES NAVY
12a/pr
14 October 1944.

SECOND ENDORSEMENT to:
USS CREVALLE Conf Ltr.
A16-4 serial 032, dated
23 September 1944. Report
of Fifth War Patrol.

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

Subject: U.S.S. CREVALLE (SS291) - Report of Fifth War
Patrol - Comment on.

1. CREVALLE's Fifth War Patrol was terminated by an
operational casualty enroute to the area.

2. A Board of Investigation has been convened to
determine the cause of the accident.

3. The Force Commander sincerely regrets the loss of
Lieutenant H. J. BLIND, USNR. This promising young officer was
lost at sea as a result of the casualty which terminated this
patrol. It is evident that his action, at the risk of his life,
materially aided in saving CREVALLE.

[SIGNATURE: R. W. Christie]
R. W. CHRISTIE.

ORIGINAL COPY

DISTRIBUTION:
Cominch (3) - Direct CTG-71.3 (2)
Vice Opnav (2) - Direct CTG-71.4 (2)
Vice Opnav Op-23c (1) CTG-71.5 (2)
ComlstFlt (1) DivComsSubRon-12 (1)
Com2ndFlt (1) DivComsSubRon-16 (1)
Com7thFlt (2) DivComsSubRon-18 (1)
ComSubs1stFlt (30) S/M School N.L. Conn. (2)
ComSubs2ndFlt (4) SubAd, Mare Island (2)
CTF-71 (4) S/Ms 7th Flt (1)
CTF-72 (2)

THIS REPORT WILL BE DESTROYED PRIOR TO ENTRY INTO ENEMY CONTROLLED
WATERS.
[HANDWRITTEN: P. F. Straub, Jr.,]
[HANDWRITTEN: Flag Secretary.]
[HANDWRITTEN: 11 0293]

— page 13 —
UNITED STATES FLEET
COMMANDER SEVENTH FLEET
[HANDWRITTEN: 14109]
[STAMP: 11 0003]

A16-3(F-3-4/whr)
Serial 02727

CONFIDENTIAL
[STAMP: 28 OCT 1944]
THIRD ENDORSEMENT to:
U.S.S. CREVALLE Conf.
Ltr., file A16-4 serial
032 of 23 September 1944.

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

Subject: U.S.S. CREVALLE (SS291) - Report of Fifth War
Patrol.

1. Forwarded.

[SIGNATURE: J. H. LONG]
By Direction

— page 14 —
[HANDWRITTEN: 1ST COPY]

SS291/.16-3
Serial: 057
DECLASSIFIED
From : Commanding Officer.
To : Commander in Chief, United States Fleet.
Via : Commander Submarines, Pacific Fleet.

Subject: U.S.S. CREVALLE (SS291), Report of War Patrol Number Six.

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

1. Enclosure (A), covering the Sixth War Patrol of this
vessel conducted in the East China Sea during the period 13 March 1945
to 3 May 1945, is forwarded herewith.

U.S.S. CREVALLE (SS291),
C/o Fleet Post Office,
San Francisco, Calif.,
3 May 1945.

[SIGNATURE: (illegible)]
E. H. STEINMETZ.

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

[HANDWRITTEN: 122320]

— page 19 —
The user wants a transcription of the text in the image. The image contains a page from a WWII submarine patrol report. I will transcribe all text, preserving line breaks and capitalization.

---

C-O-N-F-I-D-E-N-T-I-A-L
Subject: U.S.S. CREVALLE (SS291) - Report of Sixth War Patrol.

— page 35 —
C-O-N-F-I-D-E-N-T-I-A-L
Subject: U.S.S. CREVALLE (SS291) - Report of Sixth War Patrol.

0900 (I) Visibility improved, land clearly discernible. Secured
         ST and used #2 scope.

1200 (I) Lat. 33°-24' N. Long. 129°-14' E.

1307 (I) Sighted 2 sampans.

1536 (I) Lat. 33°-27' N. Long. 129°-18' E. Sighted DE or PF
         bearing 126° T. range 15,000 yds on southerly course in
         close to shore in about 15 fathoms of water. He was
         already way past us with large stbd A.O.B. No ships
         following him. SHIPCON #18.

1817 (I) Sighted submarine on surface, looks like BONEFISH (SS type
         appears). Sent recognition signals over sound gear and
         fired three smoke bombs (none of which worked).

1827 (I) Surfaced, exchanged calls with BONEFISH. Then lay to
         close aboard and exchanged dope.

                                20 April

0252 (I) Lat. 33°-37' N. Long. 129°-13' E. SHIPCON #19. SJ contact
         337°T range 11,000 yds. The usual two pips, radar inter-
         ference and no pinging. Moon is down eliminating submerged
         radar approach. Tracked on south westerly course, speed
         8 kts. Determined to be the usual AS team that we
         stumble across each night. Believe seas too high for
         shallow settings.

0445 (I) Submerged and headed for ZUCHI O SHIMA.

0935 (I) Lat. 33°-29' N. Long. 129°-28' E. SHIPCON #20.
         Sighted a DE or FF and what appeared to be a CM of
         class. Changed course to intercept. Initial range was
         about 8-9,000 yds. We were slightly to the northeast
         of IKITSUKI SHIMA and had just reversed course prior to
         picking up targets as we were being set on ZUCHI O
         SHIMA. Original A.O.B. was about 5° Stbd and changed rapidly to
         a large port angle. After swinging around for an approach
         the port angle was well past 90°. Targets had been
         obscured by land and then having reached the northern tip
         of IKITSUKI SHIMA they cut in between that island and
         ZUCHI O SHIMA apparently headed for SHIRATAKE SETO. They
         were proceeding at high speed, closest range was about
         7,000 yds. Broke off approach as targets rapidly
         disappeared.

                                - 21 -

— page 36 —
## Submarine Patrol Report Page Transcription

This document appears to be a page from a U.S. submarine patrol report, likely from World War II, detailing events and observations during a specific period.

---

C-O-N-F-I-D-E-N-T-I-A-L
Subject: U.S.S. CHEVALIER (SS291) - Report of Sixth War Patrol.

— page 37 —
## Analysis of the Request:

The request asks for a transcription of the text from the provided image. It also provides several cropped images as "hints" to help see the text better. The instructions are very specific about how to transcribe, including distinguishing between typed and handwritten text, preserving formatting, handling unclear text, and returning *only* the transcribed text.

Upon reviewing the image, it appears to be a typed document, likely a page from a WWII submarine patrol report, given the context of "U.S.S. CREVALLE (SS291) - Report of Sixth War Patrol." There are no obvious handwritten annotations or stamps on this particular page. The text is somewhat faded in places, but generally legible.

I will go through the document line by line, paying attention to all the specified details.

## Transcription Plan:

1.  **Header:** Transcribe "C-O-N-F-I-D-E-N-T-I-A-L" and "Subject: U.S.S. CREVALLE (SS291) - Report of Sixth War Patrol."
2.  **Horizontal Line:** Replicate the dashed line.
3.  **Main Body - Paragraph 1:** Transcribe the first paragraph about "Steadied down..."
4.  **Main Body - Timed Entries:** Transcribe each time entry (e.g., 2000 (I) Surfaced.) and its corresponding description.
    *   Pay attention to the degree symbol (°) and prime symbol (').

— page 41 —
The user wants me to transcribe the text from the provided image. I will go through the image line by line and transcribe all text, noting any specific formatting or elements as requested.

C-O-N-F-I-D-E-N-T-I-A-L
Subject: U.S.S. CREVALLE (SS291) - Report of Sixth War Patrol.

— page 44 —
C-O-N-F-I-D-E-N-T-I-A-L
Subject: U.S.S. GRENVILLE (SS291) - Report of Sixth War Patrol.
(D) SHIP CONTACTS

No. | Date | Time | Lat. | Long. | Type(s) | Est. Tonnage | Est. Speed | Course | How Contacted | Initial Range | Remarks
---|---
1. | 9 April | 1137(I) | 33°-23' N. | 128°-25' E. | (1) SS and (1) SCS-1(SC) | 780 yds | 6 kts. | Periscope | 2000 yds | U.S.S. GROUPER (SS214) engaged in Gun attack. Believe both to be Picket Boats. |
2. | 9 April | 0744(I) | 33°-19' N. | 128°-33' E. | (1) SCS-1 | 450 tons | 8 kts. | 170°T. | Periscope | 2000 yds | #1) No apparent course and speed solution. Either fishing or patrolling.
3. | 10 April | 2119(I) | 33°-40' N. | 129°-18' E. | (1) MITSUI type Trawler (M) (1) MITSUI (CH) or (1) MITSUI (GC) and 1 Unknown | 15,000 yds | 7 kts. | SJ Radar | | Attacked and sank the minelayer (Torpedo attack #1).
4. | 11 April | 1140(I) | 33°-38' N. | 129°-10' E. | (4) Trawlers or Pickets. | 11,000 yds | Unknown | Unknown | SJ Radar | | Attacked in Torpedo attack #2.
5. | 11 April | 2001(I) | 33°-51' N. | 127°-07' E. | (2) PC Type | 8600 yds | Unknown | Unknown | Periscope | | Sweep.
6. | 11 April | 1548(I) | 33°-46' N. | 127°-08' E. | (1) SCS-1 | 12,000 yds | 5 kts. | 250°T. | Periscope | | First indication of huge radar pips on small pips.
7. | 12 April | 1216(I) | 33°-48' N. | 127°-11' E. | (1) SCS-1 | 12,000 yds | 5 kts. | 270°T. | Periscope | | Sweep.
8. | 13 April | 2123(I) | 33°-50' N. | 127°-16' E. | Escort vessel | 25,000 yds | 5 kts. | 250°T. | SJ Radar | | First indication of huge radar pips on small pips.
9. | 15 April | 0650(I) | 33°-32' N. | 129°-04' E. | (2) Sampans | 10,000 yds | 5 kts. | 250°T. | SJ Radar | | Periscope Sweep.
10. | 15 April | 0802(I) | 33°-31' N. | 129°-01' E. | (2) Trawlers or Pickets | 10,000 yds | 5 kts. | 110°T. | SJ Radar | | First Pips at 14,000 yds. Determined too small to attack.
11. | 15 April | 2043(I) | 33°-45' N. | 129°-10' E. | (2) Unknown | 10,000 yds | Unknown | Unknown | SJ Radar | | Lost Pips at 14,000 yds. Determined too small to attack.

- 30 -

— page 45 —
Subject: U.S.S. CREVALLE (SS291) - Report of Sixth War Patrol
CONFIDENTIAL

| No. | Time | Date | Lat. | Long. | Type(s) | Initial Range | How Contacted | Est. Course | Speed | Remarks | Salvage Operations or Pickets. |
|---|
| 13 | 1550 (I) | 16 April | 33°-40' N. | 126°-55'-30" E. | (2) DE-UNL | 13,000 yds. | Periscope | 030° T. | 13 Kts. | Headed for TYOSUN TO. | |
| 14 | 0100 (I) | 17 April | 33°-29' N. | 127°-26' E. | (2) vessels | 21,000 yds. | SJ Radar | 280° T. | 8 Kts. | Investigated but abandoned due to high speed and determined not worth torpedoes. | |
| 15 | 2244 (I) | 17 April | 33°-30' N. | 127°-35' E. | (2) S vessels | 34,750 yds. | SJ Radar | Unknown | 8 Kts. | For chase. Equipped with SHIFCON #16. | |
| 16 | 2329 (I) | 17 April | 33°-17' N. | 127°-32' E. | (2) S vessels | 6,000 yds. | SJ Radar | 270-350 | 6 Kts. | Radar equipment too small. Equipped with depth charges. | |
| 17 | 0143 (I) | 18 April | 33°-30' N. | 128°-25' E. | (2) S vessels | 10,550 yds. | SJ Radar | 300° T. | 9 Kts. | Radar interference. Believed to be an A/S team. | |
| 18 | 1536 (I) | 19 April | 33°-27' N. | 129°-18' E. | (1) D.E. | 15,000 yds. | Periscope | Southerly | Unknown | In close past us. Believed to be an A/S team. | |
| 19 | 0252 (I) | 19 April | 33°-37' N. | 129°-21' E. | (1) Unknown | 12,000 yds. | Periscope | Southwest | 6 Kts. | Radar interference. Believed to be an A/S team. | |
| 20 | 0935 (I) | 20 April | 33°-29' N. | 129°-13' E. | (2) S vessels | 11,000 yds. | SJ Radar | Northeast | 8 Kts. | Radar interference. Believed to be an A/S team. | |
| 21 | 2003 (I) | 20 April | 33°-28' N. | 129°-21' E. | (1) PF or DE | 9,000 yds. | Periscope | Rounded for beach. | 15 Kts. | Approached and rounded for beach. | |
| 22 | 1255 (I) | 22 April | 33°-01' N. | 128°-34' E. | (1) Hospital Ship | 12,000 yds. | Periscope | Various | 000° T. 12 Kts. | T.I.I.S.CO. Approached once and twice during night twilight. | |

- 31 -

— page 46 —
C-O-N-F-I-D-E-N-T-I-A-L
Subject: U.S.S. CREVALLE (SS291) - Report of Sixth War Patrol.

| No. | Time | Date      | Lat.        | Long.         | Type(s)         | (F) Ship Contacts Initial Range | Est. Course | Speed   | How Contacted | Remarks.

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

Subject: U.S.S. CREVALLE (SS291) - Report of Sixth War Patrol.

| No. | Time | Date      | Lat.        | Long.         | Type(s)     | (F) Ship Contacts Initial Range | Est. Course | Speed   | How Contacted | Remarks.

— page 47 —
C-O-N-F-I-D-E-N-T-I-A-L

(G) AIRCRAFT CONTACTS
Aircraft contacts were surprisingly few in area. Most of
those encountered during daylight appeared to be BLUE planes. It
is suspected that the few night radar search planes that bothered
us were also BLUE as the majority of planes met at night, did
not give an IFF indication. Planes were numerous near KOD.K.R.
SHIM. 28 and 29 April while we were transiting to reach Corridor.

- 33 -

— page 48 —
C-O-N-F-I-D-E-N-T-I-A-L

Subject: U.S.S. CREV.LLE (SS291) - Report of Sixth War Patrol.

(H) ATTACK D.T.

U.S.S. CREV.LLE (SS291) TORPEDO ATTACK NO. 1 PATROL NO. 6
Time: 2225 (I) Date: 10 April 1945. Lat. 33°-37' N. Long. 129°-12' E.

TARGET D.T. - Damage Inflicted

Description: Picked up target and smaller ship at 15,000 yds by radar.
Visibility conditions were bad. Complete overcast with
intermittent light rain. Numerous black rain clouds
practically all around. Some lighter patches but no
stars visible. Target determined to be possible minelayer,
escort type unknown as it was never seen from bridge.
Radar pip on him smaller than on target. Ships
on southwesterly course at 7 knots apparently enroute
from HIGASHI SUIDO to channel between UKU SHIMA
HIRADO SHIMA. Main target identified visually as minor
combatant type. Distinguishing features were low free
board, break in forecastle deck, gun mount forward,
single stack fairly thick and only slight rake, deck
house aft with gun mount, and 40 MM observed shooting
from amidships once (2 possibly 3 guns).

Ship Sunk: One HATSUT.K. (CM) or NATSU SHIM. (CMC) (EU). Believed to
be somewhere about a mean of the two.

Ship damaged or
probably sunk: None.

Damage determined by: One hit seen and heard to hit solidly amidships
causing small blaze. Second hit seen and heard
to hit aft. Target stopped and settled aft.
Heard explosion from direction of target 14½
minutes after firing. Target disappeared from
radar screen 26 minutes after firing at 10,000
yds range. Other vessel still on screen at 14,000
yds.

Target Draft: 6-12 ft. Course: 200°T Speed: 7 kts. Range: 2,000 yds.

O IN SHIP D.T.

Speed: 6 kts. Course: 090°T. Depth: Surface Angle: 0°

- 34 -

— page 55 —
C-O-N-F-I-D-E-N-T-I-A-L
Subject: U.S.S. CREVALLE (SS291) - Report of Sixth War Patrol.

(J) ANTI-SUBMARINE MEASURES AND EVASION TACTICS

     Evasion tactics were normal. Anti-submarine measures although
fairly active were definitely not of a caliber to cause any great concern.
Radar search planes were present on moonlight nights. In that part of
Area Nine lying north of Lat. 33°-00' N., patrol vessels were encountered
almost nightly. All of these were proceeding in pairs at slow speed
invariably about 3,000 yds apart in line of bearing. Some gave indications
of radar or radar search receivers, and some were pinging. These con-
sisted of small escort type vessels and converted fishing trawlers mount-
ing guns. On two occasions we investigated them at minimum range of
4,000 yds to determine size, and once missed using electric torpedoes
with run of 1900 yds, depth setting 3 ft all without being detected.
On other occasions targets would maneuver radically when we were inside
of 10,000 yds range but always in a direction to foil any possible attack
by us, indicating poor radar or poor directional search receivers. On
two occasions after being forced to submerge by night search planes,
pinging was picked up. The possibility exists that the pickets and search
planes were working in conjunction, but it appears that this was only a
coincidence.

(K) MAJOR DEFECTS AND DAMAGE

C&R
1. Periscopes.

     The periscopes have been a constant source of trouble since leaving
Navy Yard, Mare Island.
(a) The garlock chevron packing as used with the hydraulic scope, has not
proved satisfactory on this vessel. It has leaked, and continues to leak
despite the various attempts of the yard and tenders.
(b) The garlock chevron packing gland around the base of the hydraulic piston
rod has persisted in leaking hydraulic oil despite the fact the bushing on
the lower end has been taken up as much as possible.
(c) Number two (2) periscope is not able to maintain an internal
pressure. It has been necessary to recharge this scope every thirty six
hours, as the pressure drops from ten (10) pounds to two (2) pounds during
this period. The ORION installed a new packing gland on the ray filter
unit in hopes that this would correct the leak. On arrival Guam, the
PROTEUS failed to find any leak, although the pressure had dropped to six
(6) pounds enroute from Pearl Harbor.
(d) The stadimeter handle on #2 scope operates stiffly. The stadimeter
housing was removed and inspected. The gears were free and operating
normally. Apparently the trouble lies inside the tube.

- 41 -

— page 56 —
C-O-N-F-I-D-E-N-T-I-A-L

Subject: U.S.S. CREVALLE (SS291) - Report of Sixth War Patrol.

(K) MAJOR DEFECTS AND DAMAGE (Cont'd)

It is strongly suspected that the very noticeable bump received by the
scope when housing it, is the cause of all the trouble. A dash pot type
of buffer should be designed and installed for use with the hydraulic scope.

2. Main Shaft (Starboard).
(a) The starboard shaft is noisy when making 60 rpm or greater, and
is especially so when running at two thirds speed. The noise is of a
heavy groan and binding type, with a low pitch squeal. The shaft can be
felt to vibrate, but dial indicator readings taken at the stern tube show
a maximum change of .002 of an inch. The present noise is the same as the
noise previous to the ship's last docking, when the strut bearing was
removed and some loose strips were found. A thorough inspection of the
shafting and bearings in dry dock is considered mandatory.

ENGINEERING:

1. Vapor compression stills. Neither compressor is satisfactory. They
both leak, and it's hard to keep a seal on them. Number two compressor
froze up on patrol - this is the third time this has happened.
2. The starboard reduction gear has a constant knock at all speeds, and
on idling this gear makes a very loud and continuous rumble.
3. Main engines required fifteen new connecting rod bearings
between them. Some of these were original bearings with 3200 hours on
them, and these were just plain worn out. No excessive flaking of Satco
was noticed.

(L) RADIO

No major defects.
Communications in general were satisfactory. Reception was difficult
at times due to normal static, but by alternating frequencies we were able
to receive all messages without too much difficulty.
Messages to be transmitted were relayed through Guam, Pearl, or
Chungking. On one occasion Chungking was the only station we could contact
and this took two hours.
Wolf pack circuits were cluttered with aviators on the same frequencies.
Their strength was such that we could drown them out when it was necessary.
Most messages over the Wolf pack frequency were at first sent blind after
several call ups. As they were not receipted for, the doubt existed
that we were not transmitting. During the latter part of the patrol we
called until answered before transmitting a message. This indicates
poor watch keeping on the circuit and entails unnecessary transmissions.

- 42 -

— page 60 —
- Transcription:

C-O-N-F-I-D-E-N-T-I-A-L
Subject: U.S.S. CREVALLE (SS291) - Report of Sixth War Patrol.

— page 61 —
C-O-N-F-I-D-E-N-T-I-A-L
Subject: U.S.S. CREVALLE (SS291) - Report of Sixth War Patrol.

COMMUNICATIONS
(U) RADAR AND SONAR COUNTERMEASURES
1. Intercept of enemy signals.
The following is a list of enemy radar as intercepted on the APR-1/
AN-SPR:

                                    Position of APR
Freq. | PRF | Pulse Width | Sketch                               | DRT           | Remarks
------|-----||||
107   | 250 | 20          | [HANDWRITTEN: sketch of an arc]      | 3-24-45       | Off Marianas on
      |     |             |                                      |               | way to Guam.
------|-----||||
106   | 25  | 12.5        | [HANDWRITTEN: sketch of three vertical pulses] | 3-25-45       | Off Marianas
      |     |             |                                      |               | on way to area.
------|-----||||
147   | 500 | 20          | [HANDWRITTEN: sketch of a rectangular pulse] | 29°-24' N.    | C. Contact on SJ
      |     |             |                                      | 131°-13' E.   | 4850 - dove
      |     |             |                                      | [HANDWRITTEN: 4-3-45] | aircraft.
------|-----||||
85    | 500 | 20          | [HANDWRITTEN: sketch of a small arc] | 29°-07' N.    |
      |     |             |                                      | 129°-56' E.   |
      |     |             |                                      | 4-4-45        |
------|-----||||
150.8 | 400 | 87          | [HANDWRITTEN: sketch of two pulses, one square, one rounded] | 29°-20' N.    |
      |     |             |                                      | 129°-24' E.   |
      |     |             |                                      | 4-4-45        |
------|-----||||
95    | 700 | 15          | [HANDWRITTEN: sketch of a wide, flat-topped pulse] | 30°-43' N.    |
      |     |             |                                      | 128°-19' E.   |
      |     |             |                                      | 4-5-45        |
------|-----||||
150   | 1000| 13.7        | [HANDWRITTEN: sketch of a spiky pulse] | 30°-08' N.    |
      |     |             |                                      | 128°-53' E.   |
      |     |             |                                      | 4-5-45        |
------|-----||||

- 47 -

— page 62 —
## 1. Overall Summary of the Document

The document appears to be a page from a WWII submarine patrol report, specifically from the USS CREVALLE (SS291), detailing "COMMUNICATIONS (U) RADAR AND SONAR COUNTERMEASURES (Cont'd)". It lists intercepted enemy signals, providing data such as frequency, PRF (Pulse Repetition Frequency), pulse width, a sketch of the signal's appearance, D.R. (Dead Reckoning) position, and the date. There's also a "Remarks" column, which for one entry notes "Sighted plane dove." The document is marked "C-O-N-F-I-D-E-N-T-I-A-L" and is page "- 48 -".

## 2. Detailed Transcription

C-O-N-F-I-D-E-N-T-I-A-L
Subject: U.S.S. CREVALLE (SS291) - Report of Sixth War Patrol.

— page 63 —
C-O-N-F-I-D-E-N-T-I-A-L
Subject: U.S.S. CREVALLE (SS291) - Report of Sixth War Patrol.
COMMUNICATIONS
(U) R.D.R. AND SONAR COUNTERMEASURES (Cont'd)

1. Intercept of enemy signals: Position of LPR

| Freq. | PRF | Pulse Width | Sketch | DR.I | Remarks |
|---|---|---|---|---|---|
| 197 | 700 | 8.7 | [Sketch of a waveform, roughly bell-shaped with a dip in the middle] | 32°-23'N | |
| | | | | 128°-24'E | |
| | | | | 4-6-45 | |
| 95 | 650 | 20 | [Sketch of a waveform, roughly a rising line then a falling curve] | 32°-23'N | |
| | | | | 128°-24'E | |
| | | | | 4-6-45 | |
| 151 | 700 | 7.5 | [Sketch of a waveform, roughly bell-shaped] | 32°-20'N | |
| | | | | 128°-48'E | |
| | | | | 4-7-45 | |
| 150 | 500 | 11.5 | [Sketch of a waveform, roughly a flat top with a dip, then a curve down] | 31°-12'N | |
| | | | | 129°-54'E | |
| | | | | 4-7-45 | |
| 85 | 500 | 9.5 | [Sketch of a waveform, roughly a flat top with a dip, then a curve down] | 31°-12'N | |
| | | | | 129°-54'E | |
| | | | | 4-7-45 | |
| 300 | 750 | 11.25 | [Sketch of a waveform, roughly a curve rising then falling] | 31°-13'N | |
| | | | | 129°-52'E | |
| | | | | 4-7-45 | |
| 90 | 500 | 10 | [Sketch of a waveform, roughly a curve rising then falling] | 31°-13'N | |
| | | | | 129°-52'E | |
| | | | | 4-7-45 | |
| 180 | 500 | 2.5 | [Sketch of a waveform, roughly a curve rising then falling] | 31°-13'N | |
| | | | | 129°-52'E | |
| | | | | 4-7-45 | |

- 49 -

— page 67 —
## The original text is:

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

Subject: U.S.S. CREVALLE (SS291) - Report of Sixth War Patrol.

— page 72 —
SUBMARINE DIVISION ONE SIXTY ONE
Care of Fleet Post Office,
San Francisco, California.
4 May 1945.

FB5-161/A16-3
Serial 011 .

CONFIDENTIAL

FIRST ENDORSEMENT to:
CO USS CREVALLE (SS291)/
A16-3 serial 057 of
3 May 1945.

. From: The Commander Submarine Division ONE SIXTY ONE.
. To : The Commander-in-Chief, United States Fleet.
. Via : (1) The Commander Submarine Squadron TWENTY.
(2) The Commander Submarine Force, Pacific Fleet.
(3) The Commander-in-Chief, United States Pacific Fleet.

. Subject: U.S.S. CREVALLE (SS291) report of War Patrol number SIX -
Comments on.

1. The sixth war patrol of the USS CREVALLE, under the command of
Commander E. H. STEINMETZ, U.S. Navy, was conducted in the East China Sea between
SAISHU TO and IRIKI SHIMA. SEAHORSE and CREVALLE were assigned to work together.
The patrol covered a period of fifty-two (52) days, twenty-four (24) of which
were spent in the assigned area. CREVALLE conducted submerged daylight patrol
twenty-two (22) of the twenty-four (24) days spent in the area.

2. Area coverage was good and twenty-four (24) contacts with enemy
ships or groups of ships were made. All of them, with the exception of a properly
marked hospital ship, were small picket boats, trawlers, and A/S vessels of
various types, which in most cases were too small to be successfully attacked with
torpedoes. Two torpedo attacks were made, one of which was successful.

ATTACK NO. 1. On the night of 10 April, a surface radar approach was
made on two targets. The larger of the two resembled a HATSUTAKA
or NATSUSHIMA type mine layer but estimated at 1000 tons. The
smaller target was never seen. Good firing position was obtained
and three Mk 18 torpedoes set at 3-foot depth were fired on a
63° track with 1800 yard run. Two hits were observed and heard.
After being hit the target opened fire with several guns forcing
CREVALLE to retire. Thirteen minutes after the first torpedo hit,
an explosion occurred on the target and it disappeared from the
radar screen eleven minutes later at a range of 10,000 yards. At
this time the other target which had given the smaller radar pip
during the approach, but had never been seen, was 14,000 yards by
radar. The first target is presumed to have sunk. No attack was
attempted on the remaining escort due to the bad visibility con-
ditions. It is quite possible that these two ships were engaged
in laying mines.

ATTACK NO. 2. This was a night radar surface approach on two patrolling
A/S vessels similar to PC boats. Good firing position was obtained

- 1 -

— page 73 —
## The Story of the Great Wall of China: A Monument to Human Endeavor

The Great Wall of China, a name that evokes images of ancient grandeur and monumental human effort, is not a single, continuous wall but rather a vast network of fortifications built over centuries by various Chinese dynasties. Stretching for thousands of miles across northern China, it stands as a testament to the ingenuity, resilience, and strategic thinking of the Chinese people.

**Early Beginnings (7th Century BCE - 3rd Century BCE):**

The earliest sections of what would become the Great Wall date back to the 7th century BCE, during the Spring and Autumn period. Independent states, such as Qi, Yan, and Zhao, began constructing defensive walls to protect their borders from rival states and nomadic tribes from the north. These early walls were primarily made of rammed earth and local stone, often following natural ridges and valleys.

**The First Unification and the Qin Dynasty (221-206 BCE):**

The true "Great Wall" as a unified concept began with the first emperor of China, Qin Shi Huang, who unified the warring states in 221 BCE. To consolidate his empire and protect it from the fierce Xiongnu nomads, Qin Shi Huang ordered the connection and extension of existing walls. He mobilized hundreds of thousands of soldiers, convicts, and peasants for this colossal undertaking. While much of his wall was built using rammed earth, it laid the foundation for the later, more elaborate constructions. The sheer scale of this project, though often exaggerated in popular lore, was unprecedented and cemented the idea of a unified

— page 74 —
FB5-161/A16-3
Serial 011
CONFIDENTIAL
Subject:

SUBMARINE DIVISION ONE SIXTY ONE

Care of Fleet Post Office,
San Francisco, California.

4 May 1945.

U.S.S. CREVALLE (SS291) report of War Patrol number SIX -
Comments on.

— page 75 —
SUBMARINE SQUADRON TWENTY

                                                Care of Fleet Post Office,
                                                San Francisco, California.
FC5-20/A16-3                                    7 May 1945.
Serial: 0102
CONFIDENTIAL
SECOND ENDORSEMENT to
CO CREVALLE Report of 6th
War Patrol (Serial 057)
of 3 May 1945.

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

Subject:     U.S.S. CREVALLE (SS291) - Report of War Patrol number
             SIX.

1.           Forwarded, concurring in the remarks and recommenda-
tions of damage assessment by Commander Submarine Division ONE
SIXTY ONE.

2.           The Commander Submarine Squadron TWENTY adds his con-
gratulations to the Commanding Officer, officers and men of the
U.S.S. CREVALLE on this well conducted patrol.

3.           It is recommended that the special mission conducted
by this submarine be brought to the attention of the Board of
Awards.

                                                L. S. PARKS.

— page 76 —
FF12-10(A)/A16-3(18)
Serial 01127
CONFIDENTIAL
THIRD ENDORSEMENT TO
CREVALLE Report of
Sixth War Patrol.

COMSUBSPAC PATROL REPORT NO. 756
U.S.S. CREVALLE - SIXTH WAR PATROL.

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

Subject: U.S.S. CREVALLE (SS291) - Report of Sixth War Patrol
(13 March to 3 May 1945).

1. The sixth war patrol of the CREVALLE, under the command of
Commander E. H. Steinmetz, U.S. Navy, was conducted in the East China Sea area.
The CREVALLE coordinated her patrol with the SEA HORSE, the commanding officer
of the latter being group commander. Lifeguard services were also rendered.

2. This aggressive and well conducted patrol resulted in the
sinking of an enemy mine layer, one submarine chaser, and a picket boat. A gun
battle with a trawler resulted in a trawler had to be broken off due to erratic
fire control and enemy maneuvers. The CREVALLE also accomplished a special
mission.

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

4. The Commander Submarine Force, Pacific Fleet, congratulates the
commanding officer, officers, and crew of the CREVALLE for the completion of
this aggressive, trying, successful patrol. The CREVALLE is credited with
having inflicted the following damage upon the enemy during this patrol:

S U N K
1 - CH: (KATSUTAMA or HATSUSHIMA Class) (EU) - 1,000 tons (Attack No. 1)
1 - SCS-1 (EC) - 100 tons *
1 - Picket Boat (MIS)(EC) - 150 tons *

TOTAL SUNK - 1,250 tons

D A M A G E D
1 - Trawler (AIKE MARU Class) (EC) - 167 tons (Gun Attack No. 1)

TOTAL SUNK & DAMAGED - 1,417 tons

*Covered by separate report.

Distribution & authentication
next page.

- 1 -
SUBMARINE FORCE, PACIFIC FLEET
N1
Care of Fleet Post Office,
San Francisco, California.
14 May 1945.
NOTE: THIS REPORT WILL BE
DESTROYED PRIOR TO
ENTERING PATROL AREA.

MERRILL COMSTOCK.

— page 77 —
F12-10(A)/A16-3(18)
Serial 01127

CONFIDENTIAL

THIRD ENDORSEMENT to
CREVALLE Report of
Sixth War Patrol.

COMSUBSPAC PATROL REPORT NO. 756
U.S.S. CREVALLE - SIXTH WAR PATROL.

Subject: U.S.S. CREVALLE (SS291) - Report of Sixth War Patrol
(13 March to 3 May 1945).

— page 78 —
SS291/
A16-3
Serial: 092
DECLASSIFIED[struck through] [HANDWRITTEN: L]

U.S.S. CREVALLE (SS291),
C/o Fleet Post Office,
San Francisco, Calif.,
5 July 1945.

[HANDWRITTEN: 1ST COPY]
[STAMP: DECLASSIFIED - DOD DIR. 5200.8]
[STAMP: of 27 Sep 58]
[STAMP: BY 92C] [HANDWRITTEN on stamp: DATE 4/22/71]

From:
To : Commanding Officer, U.S.S. CREVALLE (SS291).
Commander In Chief, United States Fleet.

Via:
(1) The Commander Submarine Division FORTY-THREE.
(2) The Commander Submarine Squadron 10.
(3) The Commander Submarine Force, Pacific Fleet.

Subject: U.S.S. CREVALLE, Report of War Patrol number Seven.

Enclosure:
(A) Subject report.
(B) Track Chart.

1. Enclosure (A), covering the Seventh War Patrol of this
vessel conducted in the JAPAN SEA during the period 27 May 1945 to
5 July 1945, is forwarded herewith.

[SIGNATURE: H.H. STEINMETZ]
H.H. STEINMETZ.

[HANDWRITTEN: 133254]

— page 85 —
C-O-N-F-I-D-E-N-T-I-A-L
Subject: U.S.S. CREVALLE (SS291) - Report of Seventh War Patrol.

0300 Submerged.

0302 Having trouble rigging out bow planes. Immediately suspected
     bow plane wires are fouled up in forward cleats.

0316 Surfaced. Suspicions confirmed. Part of port cleat guards carried
     away and bow plane wire firmly wrapped around horn. Rigged planes
     in by hand and cleared wire.

0323 Submerged. Planes working all right. This can be serious. The
     new wires are too heavy. Last patrol when this happened the planes
     would snap the cables, but with the new thick cables the overload
     on rigging motor trips out. Recommend abolishing cables. We
     do our "O" THE sweeps with bow planes always rigged in.

0527 SHIPCON #7 Lat. 40°-55' N. Long. 139°-38' E. Sighted small
     freighter through scope bearing 292°T, range about 14,000 yds.

1152 SHIPCON #8 Lat. 41°-00' N. Long. 139°-38' E. Sighted small
     freighter 057°T, dist. 12,000 yds.

1200 Lat. 41°-01' N. Long. 139°-38' E.

1305 SHIPCON #9 Lat. 41°-04' N. Long. 139°-38' E.
     Sighted smoke and masts of freighter bearing 014°T, range 17,000
     yds.

1920 Sunset.

2018 Surfaced.

2059 Completed repairs to cleat fairings. We don't want any more jammed
     planes on dives.

2112 SHIPCON #10 Lat. 40°-50' N. Long. 139°-45' E. SJ Contact 035°T,
     range 13,200 yds. Stationed radar tracking party.

2121 Battle Stations Night Radar. Target on course 170°T, speed 8 kts.
     No escort. No indication that Nips are aware of our presence in
     the J.P.N. SE. Target running blacked out but once in a while we
     would see some light such as the opening of a door.

2139 Visibility conditions good for us. Complete overcast, calm sea.
     Decided that here was an excellent opportunity to get some off from
     the stern tubes. Target a SUGAR CHARLIE LOVE (EC) Type D (Modified)

- 8 -

— page 86 —
C-O-N-F-I-D-E-N-T-I-A-L
Subject: U.S.S. CREVALLE (SS291) - Report of Seventh War Patrol.

page 8 of Supplement 3 to ONI 208-J Revised, 2300 tons.

TORPEDO ATTACK #1 Lat. 40°-54' N. Long. 139°-48' E.
Torpedo run 2250 yds; track angle 83° stbd; gyros 178°; firing
interval 9 seconds; depth set 3 feet. In view of being farther
off track than was originally intended, used latest instructions and
fired two MK 18-2 torpedoes at the M.O.T.

2151-16 Fired tube #9.
-25 Fired tube #10.

2153-32 First hit, practically at M.O.T.
-41 Second hit, not more than 50 ft from first.
Both hits solid throwing flame and debris up a couple of hundred
feet.
2155 SJ Contact 300°T, range 2700 yds. Nothing could be seen. To
played with this contact about 10 minutes. Finally decided it must
be a small Sampan.
2205 Loud explosion from direction of target. Radar failed to pick him up
whereas just a few minutes previously, the range was 4000 yds. Nothing
but a pall of black smoke in target direction. Considered definitely
sunk.

10 June

0252 SHIPCON #11 Lat. 40°-48' N. Long. 139°-49' E. SJ Contact 115°T,
range 15,300 yds. Stationed radar tracking party. Firing solution
170°T, speed 8-9 kts. This put
not solved, but about
him on our port beam in toward the beach. Morning twilight only
minutes away. Went ahead flank to run up ahead for diving position.

0322 Fairly light, submerged heading for HEN.SHI S.KI. Although visibility
was good and the beach was in plain sight, never did pick this bird
up again.

0730 SHIPCON #12 Lat. 40°-44' N. Long. 139°-52' E. Smoke and a mast at
021°T hull down.

0848 Manned Battle Stations Submerged.
Played around with this fellow for almost an hour before final
identification showed him to be a tug towing a log raft.
Numbers 1447 on side of wheel house. Course 190°T, speed 3.5.
Debated whether or not to shoot. Decided to give him one torpedo
with a short run. Battle surface and gun action with the beach
only 4 miles away didn't seem feasible. Maybe they will mist ke us

- 9 -

— page 90 —
C-O-N-F-I-D-E-N-T-I-A-L
Subject: U.S.S. CREVALLE (SS291) - Report of Seventh War Patrol.

One life boat full of survivors.

0350 Went about business of patrolling HONSHI S.KI. We all realize
we are lucky to get this one. However it proves that the last
chance gestures sometimes pay off. Especially when the other
fellow plays into your hand.

0810 SHIP CONTACT #17 Lat. 40°-34' N. Long. 139°-39' E. Sighted DE UN-1
type through scope after sound reported pinging at 310°T. Range
about 4000 yds. .O.B. 90° port. He was on parallel course.
between him and the beach. Nothing astern of him, visibility
only 3 miles at the time. Wondered whether he was heading south
on purpose or just looking around.

0834 Pinging faded out, had lost sight contact previously.

1200 Lat. 40°-32' N. Long. 139°-41' E.

1514 Sound reports pinging at 240° rel. Visibility at least 7 miles,
nothing in sight.

1537 SHIP CONTACT #18 Lt. 40°-40' N. Long. 139°-44' E. Sighted top
works of DE UN-1 type, hull down about 20° forward of reported
pinging.

1540 Sighted masts from direction of pinging. This make two of them.

1545 Changed course to 300°T to keep pinger between us and the beach.

1600 Saw three DE UN-1 type, sound now reports all of them pinging.
They were strung out on a line of bearing about 2000 yds apart.
The nearest one was at about 8000 yds from us. Decided Nips
might be irked and classify us a unsavory citizens. Headed
out from coast at 200 ft under an 8° layer.

1712 Last of pingers faded out. No merchant ship contacts off HONSHI
S.KI since sinking this morning. Planned moving north hoping to
find another point of land as fruitful. The DE's didn't influence
decision - much.

2022 Surfaced and headed for new patrol spot.

12 June

0245 SJ contact 8,400 yds, bearing 115°T. This was the first of about
2 dozen contacts which seemed to be all around us. Decided we
were either in the midst of a fishing fleet or were getting
contacts on birds. Weather foggy nothing could be seen on the

- 13 -

— page 94 —
C-O-N-F-I-D-E-N-T-I-A-L
Subject: U.S.S. CREVALLE (SS291) - Report of Seventh War Patrol.

1525-27 Fired tube #1.
-37 Fired tube #2.
-47 Fired tube #3.
Swung left and went deep, rigging for silent running and depth
charge attack. Last look the guy looked big as a house.

1532 One explosion. End of run?

1532-30 One Explosion. End of run?

Steadied up on course 270°T. No doubt that torpedoes missed.
Don't know whether error was in dope or further target maneuvers.
Even with small spread used, the proximity of the target at firing
point didn't grant much latitude for maneuvering. Wonder if the
fish could have broached again or if the targets heard torpedoes
running at him. The average run was 1200 yds. Realize that a
700 yd run is recommended for this type of shot. But he looked
awfully close and I wanted to get off his track. In retrospect
I think if I had held fire he would have gone by and we may have been
able to cut in and shoot at the last minute without DD's knowing we
were there until they heard the torpedo explosions.

1537 4 calling cards, not close.

1538 6 more, not close but definitely of the giant size.

1539 1 charge.

1545 4 charges. All 15 charges were to port and above according to
DCDI.

1626 2 charges, distant. We ran at 400 ft at 60 rpm gradually working
to seaward. We were under an 8° negative layer. Pinging is
still in evidence. We have one on each quarter.

1843 Echo ranging getting weaker, both on stbd side, so we changed
course to 210°T. Rigged for normal running.

1900 At periscope depth, all clear but pinging still heard over sound
gear, one pinger only.

1922 Pinging getting louder. Sun has set and it is beginning to get
dark.

1935 DD seen through scope. He bears about 155° rel. and has a large
stbd angle.

- 17 -

— page 95 —
C-O-N-F-I-D-E-N-T-I-A-L
Subject: U.S.S. CREVALLE (SS291) - Report of Seventh War Patrol.

1954 Had been concentrating on pinger, watching his movements in the
     gathering darkness when sound reported screws at 130° rel.
     Took a look and just able to make out the other DD. He was not
     pinging. Escaped deep again.

2019 Screws at 130° rel. coming in on a steady bearing.

2021 Screws moving aft. JP reports not quite loud enough.

2025 Changed course to 330°T, the opposite of our guess on target
     course.

2100 At periscope depth. Screws gone but still had one pinger.

2115 Surfaced and headed toward sea. No radar contacts.

2224 Sighted sweeping searchlight beam over horizon stayed on about
     3 min. We are convinced that the two DD's never got contact
     on us. Nevertheless this was an extremely grueling evasion.
     The Japs were fairly persistent in their chase. At the point
     of attack, we had the coast to eastward; a large island with a
     10 mile wide strait to north, and island to south with another
     narrow pass and intelligence reports of sonar installations.
     This left only westward evasion courses.

     The DD's appeared to go on north and south courses, working
     gradually to westward. It was especially griping to get rid
     of them only to have them come right back over us. Fortunately
     unknown to them.

2230 Received orders from Comdr. Pack 21 to patrol new area, so
     headed for it. To prove that he has a battle station and
     that the pressure doesn't bother him, Lieut. Comdr. R. B. Lakin,
     R.N. turned in a bit of verse which was composed during the
     evasive tactics of the afternoon and evening. We consider
     this too good to selfishly keep to ourselves. Knowing that
     the SubForce RNIO is reluctant to publish this work in book
     form, we shall bring it to the attention of submarine personnel
     by including it in this report.

                       ANTI-SUBMARINE

     Methought my ear was not far wrong,
     When soon I heard the doleful song.
     Of he who must prognosticate
     Upon our miserable fate
     Since we've become the powerless dupe
     Of Hirohito's killer group.

     The killer group! The killer group!

                               - 18 -

— page 99 —
C-O-N-F-I-D-E-N-T-I-A-L
Subject: U.S.S. CREVALLE (SS291) - Report of Seventh War Patrol.

0455 SHIP CONTACT #23. Lat. 39°-55' N. Long. 139°-40' E. Sighted 4 small
     AK's heading north hugging the coast. We were heading for a line
     3 miles off the coast. We were still too far away. Ships
     were on northerly course.

0804 Sighted 3 sampans.

0950 Sighted single engine float plane, flying up the coast.

1121 SHIP CONTACT #24 Lat. 39°-50' N. Long. 139°-42' E. Sighted 3
     small AK's heading south.

1133 Manned battle stations submerged. Started approach on leading
     ship.

1200 Lat. 39°-55' N. Long. 139°-38' E. It soon became obvious
     that we were not in good position. Ships were picked up
     right after coming to our northerly leg. First and second
     ships about 2000 tonners were by good firing position, so
     shifted to third ship an engines aft AK type E mass model
     of about 1000 tons. He was making 9 kts.

     TORPEDO ATTACK #6 Lat. 39°-55' N. Long. 139°-40' E.
     Torpedo run 2400 yds, track angle 115° stbd, gyro angle 001°,
     depth set 8 ft. Fired one MK. 18-2 torpedo only, as decided he
     was not worth more.

1209 Fired Tube #2. Torpedo missed and exploded against the beach.
     Targets were all making small course changes to follow the exact
     contour of the beach. Wished that we had fired two instead of
     one torpedo. We were only 3000 yds off beach after firing.

1400 Sighted a trawler heading north.

1457 Sighted single engine fighter type plane. He remained in
     vicinity for about an hour and a half.

1655 Sighted sampan. Passed astern of us.

2017 Surfaced and patroled 10 miles off OGA. HANTO all night.

19 June

0308 Submerged 5 miles west of OGA. HANTO.

0515 Sighted trawler.

0855 SHIP CONTACT #25 Lat. 39°-58' N. Long. 139°-40' E. Sighted
     two AK's heading around point on southerly course, one was

- 21 -

— page 100 —
C-O-N-F-I-D-E-N-T-I-A-L
Subject: U.S.S. CREVALLE (SS291) - Report of Seventh War Patrol.

MFM of about 2000 tons, the other a SUGAR CHARLIE LOVE engine aft
AK.

0912 Manned battle stations submerged. We were 4000 yds from the beach
and ready to lower the wheels if necessary. Set up checking
nicely. Decided to give first target 2 fish from the fwd
on a fairly sharp track if necessary then swing with him to observe
antics of the engine aft target and get him with the stern tubes.
Both targets making 8 kts, hugging the coast as usual.
Set up checking nicely and we were in so close that we were
assured that we would have a short torpedo run.

TORPEDO ATTACK #7 Lat. 39°-58' N. Long. 139°-40' E. Torpedo
run 1300 yds, track 80° stbd, gyros 357°, depth set 8 ft. Fired
two MK. 18-2 torpedoes, spread for 2 hits 75% coverage, firing
interval 10 seconds.

0942-15 Fired Tube #3.

-25 Fired Tube #4.

Immediately after firing tube #4, swung with full rudder to the
right. I wanted to prolong the problem to see which way the
engine aft AK would zig. Also desired to use stern tubes.

0943-30 Raised scope to get a set up on the engine aft model. Saw he had
a port angle getting larger all the time. No torpedo explosions
yet. Immediately looked at first target and he was showing a
zero angle heading to ram us.

0944 Went to 90 ft as we already had swung and only shot possible would
have been a down the throat with large gyros.

0945 Two explosions probably torpedoes hitting the beach.

0949 Screws getting weaker, started up.

0952 At 120 ft, screws getting louder back to 150 ft.

0954 Screws fading again, started up.

0957 At 65 ft. Engine aft AK bearing 075°T, large angle and swinging
toward zero, range about 500 yds. Get tubes 5 & 6 ready.

0959 Spindle on tube #5 wouldn't engage. Angle on bow zero, range
close but a huge gyro angle.

- 22 -

— page 102 —
C-O-N-F-I-D-E-N-T-I-A-L
Subject: U.S.S. CREVALLE (SS291) - Report of Seventh War Patrol.

2340 SHIPCOON #27 Lat. 40°-40' N. Long. 139°-47' E. SJ contact
     12,700 yds, bearing 352°T.

2343 Stationed Radar Tracking Party. Target looked like small
     escort type headed north, zigging and pinging.

2354 Manned Battle Stations Submerged.

                               20 June

0001 Submerged and started approach at 8000 yds range.

0015 Target is small, OB can only be estimated as large or small.
     Target is maneuvering radically.

0018 Range 2000 yds and can not see enough of escort type in bright
     moonlight to get a good set up. Went to 450 ft and closed,
     hoping to pick him up on JP sound gear.

0025 Evidently target passed by at about 1000 yds range.

0037 At periscope depth, all clear on ST, but sound has weak pinging.

0040 Surfaced - all clear. Target was making about 9 kts.

0205 SHIPCOON #28 Lat. 40°-41' N. Long. 139°-52' E. SJ Contact
     210°T at 13,450 yds. Probably same ship as SHIPCOON #27 as it
     was an escort type when seen from bridge later on. Went ahead
     full on 3 main engines, continuing charge on one engine and
     worked around to west and then south of contact in order to
     be in desired diving position.

0307 Submerged 5 miles west of HONSHU S.KI.

0400 SHIPCOON #29 Lat. 40°-43' N. Long. 139°-51' E. Heard pinging
     at 011°T. Too far off to be seen.

0430 Pinging getting louder.

0437 Manned battle stations submerged. Target was a MIKURA class
     frigate (PF 17-24) heading south. This could have been the
     contact we had during the night, but it appeared to be much
     bigger.

0439 Target is making about 11 kts using a constant helm plan of at
     least 60° either side of base course. Every OB was different
     Had him from 110° stbd to 10° port. He passed ahead of us

- 24 -

— page 106 —
C-O-N-F-I-D-E-N-T-I-A-L
Subject: U.S.S. CREVALLE (SS291) - Report of Seventh War Patrol.

course to the left to head south again. As we were almost
on the southern course, kept coming left to further close the
beach. Targets were again hugging beach and the large escort was
to seaward off port quarter of the goalposter.

1215 Sound reports heavy screws at 340° rel. All our targets are on
stbd bow. Can see nothing at 340° rel.

1225 See sound target - a tug with a log raft tow heading south.

1227 We are not in too good a position for stern tube shot at first
target as gyros will be big and run fairly long. After all our
misses, my confidence in the MK. 18's is practically zero. So
shifted to second ship in line.

1231 Swung left and went to 90 ft to pass under the escort while
getting stern tubes lined up.

1237 At 65 ft set up checks.

TORPEDO ATTACK #9 Lat. 42°-35' N. Long. 139°-48' E. Torpedo run
2800, track angle 125° port, gyros 184°, firing interval 10
secs, depth set 8 ft, fired 3 MK. 18-2 torpedoes spread for
150% coverage.

1242-20 Fired Tube #8.
-30 Fired tube #9.
-40 Fired Tube #10.

1248 Watched the torpedoes explode on the beach. They looked to be
spread all right.

1249 The target blew his whistle and the escort peeled off to the left,
so we went to 250 ft.

1254 One charge distant.
1257 Two charges "
1258 One charge "
1259 Two charges "
1301 Two charges "
1303 Two charges "
1307 One charge closer.

- 27 -

— page 107 —
C-O-N-F-I-D-E-N-T-I-A-L

Subject: U.S.S. CREVALLE (SS291) - Report of Seventh War Patrol.

1308 Two charges closer. These charges although not close were definitely
     of the block buster type. They had a terrific swish to them.
     We were glad they were not closer.

1309 At 275 ft. We have the escort pinging and the screws of the
     tug.

1326 Pinging getting weaker. Rigged for normal running and started up.

1331 Pinger shifted to short scale. Stayed put at 150 ft.

1345 Pinging weaker started up again.

1353 At periscope depth. Escort about 5000 yds bearing 030°T. Also
     a RUFE float type plane flying very low on the same bearing.

1359 Had obtained a cut and observed the plane still flying low. Escort
     looked like he was going to stick around so went to 350 ft.

1732 Had spent the afternoon working to westward keeping the pinger
     as far astern as possible. He was making north and south sweeps
     gradually working out to sea. Now at periscope depth. Could
     not see pinger nor any planes although pinger could be heard.

1830 Now have pinging at 170° rel and 105° rel.

1930 Can see escort and he is heading directly out toward us. He is
     full down now.

1945 Escort now about 4000 yds astern of us. Have the other pinger
     at 090° rel. This turned out to be a fluke echo as echo ranging
     was on the same frequency and keyed at the same time.

1947 Escort still closing so went deep.

2000 Escort passed us heading northwest. Fairly close.

2030 Came to periscope depth, still have pinging but all clear on ST.
     Could not see anything either.

2040 Surfaced on 4 engines. All clear.

2051 Changed course to north. Only have two fish left and want to make
     certain we make the rendezvous.

2306 SHIPOON #35 Lat. 43°-19' N. Long. 139°-39' E. SJ contact
     12,300 yds. bearing 340°T. Tracked target. Determined him to be
     pinging from 030° to 120°T. He was pinging and had flashes of
     SJ radar interference on the SJ. indicating some kind of Jap 10 cm.

- 28 -

— page 110 —
C-O-N-F-I-D-E-N-T-I-A-L
Subject: U.S.S. CREVALLE (SS291) - Report of Seventh War Patrol.

Data for 23 June to this point is covered in special report.
                                        25 June

0645 All stop. Terrific noise from stbd shaft. Commenced alternate
     backing and going ahead. It appears that one of the cable
     guards has worked loose.

0715 Went ahead standard on port screw. Nothing could be determined
     from topside.

0830 By use of grapnel and inspection by Lieut. (jg) W.F. MAZZONE,
     USNR who volunteered to use the shallow water diving outfit,
     it was determined that the outboard cable had parted at both
     the hull and at the junction on the stern planes. Swells were
     too great to permit diver to clear cable. The screw looks
     clear and we think the cable is wrapped loosely around the shaft
     between the hull and the strut. Probably cable parted at one
     end and our backing and filling parted the other end.
     Backed full on both screws. Stbd side gave a hell of noise briefly
     as cable clanked against hull. Quieted down. Went ahead and worked
     up to full power in steps. Everything almost normal. Higher water noise
     level from stbd screw indicates a blade is probably nicked but no
     excess vibration.

1200 Lat. 45°-37' N. Long. 145°-40' E.

2000 Submarine appearing all over the place. We have caught up and apparently
     everyone is headed for YETOROFU KAIKYO.

2235 Set course for MIDWAY. After quite a few SCR conversations with other
     HELLCAT Skippers, the concensus of opinion is COONEYVILLE on 3 mains.

                                        26 June

0440 Three friends in sight.

1200(k) Lat. 43°-34' N. Long. 151°-50' E.

1253(k) Submerged for trim.

1305(k) Surfaced. Bow planes would not rig in. Inspection revealed that
     the housing on the main drive shaft had split, allowing drive
     shaft key to fall out. No way we can fix this casualty.

1530(k) Rigged in bow planes by use of chain falls. Lashed them in the
     "Rigged In"position.

                                        - 32 -

— page 112 —
C-O-N-F-I-D-E-N-T-I-A-L
Subject: U.S.S. CHEVALLE (SS291) - Report of Seventh War Patrol.

2 July
1200(y) Lat. 24°-08' N. Long. 173°-18' W.

3 July
1200(x) Lat. 22°-12' N. Long. 167°-56' W.

4 July
1200(w) Lat. 20°-52' N. Long. 162°-48' W.

5 July
0600(vw) Rendezvoused with U.S.S. PC 483.
Moored Sub Base Pearl.

-34-

— page 115 —
C-O-N-F-I-D-E-N-T-I-A-L
Subject: U.S.S. CREVALLE (SS291) - Report of Seventh War Patrol.

F. SHIP CONTACTS (Cont'd)
Initial

| Nd. | Date | Time | Lat. | Long. | Type(s) | Range | Speed | Course | Bearing | Contacted | Remarks |
|---|
| 15. | 11 June | 0030(I) | 40°-53'N | 139°-49'E | (1) Unknown | 5,500 yds | 8 kts. | 010° | North | SJ Radar & Sight | Suspected to be a sailing vessel. Burning side lights. |
| 16. | 11 June | 0242(I) | 40°-32'N | 139°-47'E | (1) Eng Aft AK (SCL) | 18,050 yds | 8 kts. | 180° | North | SJ Radar | Sunk in Torpedo attack #4. |
| | | | | | (1) DE UN-1 | | | | | Periscope | Pinged, on a search for us. |
| 17. | 11 June | 0810(I) | 40°-34'N | 139°-41'E | (3) Cargo | 4,000 yds | 8-10 kts. | 180° | North | Periscope & Sound | Placed on a search for us. |
| | | | | | (1) DE UN-1 | 8000-12000 yds | | | | SJ Radar | Engaged and sunk in GUN ATTACK #1. |
| 18. | 11 June | 1537(I) | 40°-40'N | 139°-41'E | (3) small AK's | 3000 yds | 6 kts. | 180° | North | Periscope & Sound | Coast Huggers, already in position. |
| 19. | 13 June | 0327(I) | 40°-41'N | 139°-46'E | (2) DD's (MATSU) | 11,000 yds | 4 kts. | North | Periscope | Attacked and missed in TORPEDO ATTACK #5. |
| | | | | | (3) AK's small. | 12,000 yds | | | | Periscope | Had been heading south but reversed speed. |
| 20. | 14 June | 0716(I) | 41°-51'N | 139°-58'E | (2) DD's (MATSU Class) | 14,000 yds | 7 kts. | North | Periscope & Sound | Could not close. |
| 21. | 14 June | 1440(I) | 41°-42'N | 139°-58'E | (3) Small AK's | 12,000 yds | South | Periscope | Attacked and missed in Attack #6. |
| 22. | 15 June | 1600(I) | 41°-00'N | 139°-58'E | (2) Small AK's | 10,000 yds | South | Periscope & Sound | Attacked and missed in Attack #7. |
| 23. | 18 June | 0455(I) | 39°-55'N | 139°-40'E | (1) Escort | 12,700 yds | North | SJ Radar | Made approach but target never closed sufficiently. |
| 24. | 18 June | 1121(I) | 39°-50'N | 139°-40'E | (1) Escort | 13,450 yds | North | SJ Radar | Probably same as SHIP CONTACT #23. |
| 25. | 19 June | 0855(I) | 39°-58'N | 139°-40'E | (1) Escort | 10,000 yds | South | Periscope & Sound | Torpedo |
| 26. | 19 June | 1324(I) | 39°-40'N | 139°-40'E | (1) Escort | 12,700 yds | North | SJ Radar | Torpedo |
| 27. | 19 June | 2340(I) | 39°-47'N | 139°-41'E | (1) Escort | 13,450 yds | North | SJ Radar | Torpedo |
| 28. | 20 June | 0203(I) | 39°-52'N | 139°-52'E | (1) Escort | 12,000 yds | South | Periscope & Sound | Torpedo |

- 37

— page 116 —
C-O-N-F-I-D-E-N-T-I-A-L
Subject: U.S.S. CHEVALIER (SS291) - Report of Seventh War Patrol.
F. SHIP CONTACTS (Cont'd)

| No. | Time Date | Lat. | Long. | Type(s) Class | Initial Range | How Contacted | Remarks |
|---|---|---|---|---|---|---|---|
| 29. | 0400(I) 20 June | 40°-43' N. | 139°-51' E. | (1) PF 17-24 | 12,000 yds | Sound & Periscope | Made approach but could not close sufficiently. |
| | | | | (1) FF | | | |
| 30. | 0940(I) 20 June | 40°-42' N. | 139°-57' E. | (2) AK's | 12,000 yds | North 7 kts Sound & Periscope | Approached but couldn't close sufficiently for stern tubes. |
| | | | | (1) FF | | | |
| 31. | 1130(I) 20 June | 40°-42' N. | 139°-56' E. | (2) AK's | 7,000 yds | North 8 kts Sound & Periscope | Attacked and missed. Attack #8. |
| | | | | (1) DD | | | |
| 32. | 1223(I) 20 June | 40°-44' N. | 139°-58' E. | (2) AK's | 10,000 yds | North 8 kts Sound & Periscope | Attacked and missed. Torpedo Attack #9. |
| | | | | (1) DD | | | |
| 33. | 1328(I) 20 June | 40°-43' N. | 139°-51' E. | (1) PF | 12,000 yds | South 8 kts Sound & Periscope | Attacked and sunk. Torpedo Attack #10. |
| | | | | (1) DD | | | |
| 34. | 1151(I) 21 June | 42°-35' N. | 139°-47' E. | (2) AK's | 12,000 yds | East 8 kts Sound & Periscope | Attacked and missed. Torpedo Attack #9. |
| | | | | (1) DD | | | |
| 35. | 2306(I) 21 June | 40°-19' N. | 139°-39' E. | (1) DD | 12,300 yds | South 11 kts SJ Radar | Attacked and sunk. Torpedo Attack #10. |
| | | | | (1) Unknown | | | |
| 36. | 2245(I) 24 June | 40°-19' N. | 139°-39' E. | (1) Unknown | 17,500 yds | South 11 kts SJ Radar | Lighted. |

- 38 -

— page 120 —
The following text is transcribed from the image provided, distinguishing between typed and handwritten text, and preserving formatting as accurately as possible.

C-O-N-F-I-D-E-N-T-I-A-L
Subject: U.S.S. CREVALLE (SS291) - Report of Seventh War Patrol.

— page 124 —
C-O-N-F-I-D-E-N-T-I-A-L
Subject: U.S.S. CREVALLE (SS291) - Report of Seventh War Patrol.

H. ATTACK DATA

U.S.S. CREVALLE (SS291) Torpedo Attack #4. Patrol No. 7
Time: 0313(I) Date: 11 June 1945 Lat. 40°-39' N. Long. 139°-48' E.

TARGET DATA - Damage Inflicted

Description: Picked up target at 18,050 yds range by SJ Radar. Visibility
 conditions: The beginning of morning twilight but scattered rain
 squalls around horizon. Completely overcast. Target seen at about
 5000 yds range. Another SUGAR CHARLIE LOVE (EC) We are getting
 to be experts in identifying this particular model.

Ship Sunk: None.

Ship damaged or
probably sunk: None.

Damage determined by:
 Target either saw us or the torpedo that broached. He
 appeared to back down. It is believed that the broaching
 was caused by excessive ship speed when firing (about 13 kts.)

Target Draft: 19ft. Course: 010°T Speed: 8 kts. Range: 2400 yds.

Own Ship Data

Speed: 13 Course: 110°T Depth: Surface Angle: 0°.

Fire Control and Torpedo Data

Type Attack: Night surface radar. Course and speed determined quickly and
 decision made to get in a surface attack before it became too
 light. Went in at 15 kts, stopped screws at firing point. Used
 TBT bearings and radar ranges from 5000 yds. Fired 2 Mk. 18-2
 torpedoes with average run of 2300 yds, average gyros 35°
 average 90° P track. Both torpedoes set on 6 ft and aimed
 at M.O.T. One torpedo broached two or three times but finally
 settled on depth.

- 46 -

— page 125 —
C-O-N-F-I-D-E-N-T-I-A-L

Subject: U.S.S. CREVALLE (SS291) - Report of Seventh War Patrol.

H. ATTACK DATA
TORPEDO ATTACK #4A

Tubes Fired: | #5 | #6
Track Angle: | 90 P | 90 P
Gyro Angle: | 359° | 359.5°
Depth Set: | 6' | 6'
Mk. 18 speed used
in TDC.: | 27.9 | 27.9
Hit or Miss: | Miss | Miss
Erratic: | | One Broached
Mark Torpedo: | 18-2 | 18-2
Serial No.: | 99130 | 58001
Mark Exploder: | 8-7 | 8-7
Serial No.: | 11292 | 11613
Actuation Set: | - - - Contact - - - -
Actuation Actual: |
Mark Warhead: | 18-2 | 18-2
Serial No.: | 4756 | 5748
Explosive: | TPX | TPX
Firing Interval: | - - - 10ˢ - - - -
Type Spread: | 0° | 0°
Sea Conditions: | - - - State 1 - - - -
Overhaul Activity: | - - - U.S.S. PROTEUS - - -
Injection Temp.: | - - - 57° - - - -
Electrolyte Temp.: | - - - 60° - - - -

- 47 -

— page 128 —
C-O-N-F-I-D-E-N-T-I-A-L
Subject: U.S.S. CREVALLE (SS291) - Report of Seventh War Patrol.

H. ATTACK DATA
U.S.S. CREVALLE (SS291) - Torpedo Attack #5 Patrol No. 7
Time: 1527(I) Date: 14 June 1945 Lat. 41°-42' N. Long. 139°-58' E.

TARGET DATA - Damage Inflicted
Description: Sighted two M.TSU class destroyers heading north and 3 small
 AK's heading south hugging the coast. DD's appeared to be on
 an A/S sweep and started to join AK's formation. This prevented
 us from getting a shot at AK's before taking on the DD's.

Ship Sunk: None.

Ship Damaged or
Probably Sunk: None.

Damage determined by:
 No timed hits and both DD's made depth charge attacks.

Target Draft: ? Course: 090°T Speed: 11 kts. Range: 1450 yds.

Own Ship Data
Course: 275°T Depth: 65' Angle ½° Down.

Fire Control and Torpedo Data

The Attack:
 Day submerged periscope attack. DD's were forming up on
 AK's so elected to shoot DD's first. Problem was rushed by
 maneuvers of DD's which were closing us constantly. Fired
 the throat shot on nearer DD, firing 3 MK. 18-2 torpedoes
 with an average run of 1200 yds, average gyros 009, on average
 good track, using 4 ft depth settings and spread of 1
 L, O, R firing interval 10 seconds. No hits heard.
 Wonder if target maneuvered more after last look possibly
 hearing torpedoes coming at him.

- 50 -

— page 133 —
## 1. Original Image Analysis:

The original image is a scan of a document, likely a page from a military report. It contains typed text with some handwritten annotations. The text is generally clear but some parts are faded or have minor scanning artifacts. The document appears to be a "Torpedo Attack" report from a submarine.

## 2. Transcription Strategy:

I will go through the document section by section, transcribing all typed text first. Then I will identify and transcribe any handwritten elements, clearly marking them. I will pay close attention to line breaks, capitalization, and numerical data.

## 3. Execution - Step-by-Step Transcription:

**Header:**
C-O-N-F-I-D-E-N-T-I-A-L

**Subject Line:**
Subject: U.S.S. CREVALLE (SS291) - Report of Seventh War Patrol.

— page 135 —
```json
[
  {
    "text_content": "C-O-N-F-I-D-E-N-T-I-A-L",
    "box_2d": [
      [69, 400],
      [69, 600],
      [81, 600],
      [81, 400]
    ]
  },
  {
    "text_content": "Subject:",
    "box_2d": [
      [198, 229],
      [198, 280],
      [206, 280],
      [206, 229]
    ]
  },
  {
    "text_content": "U.S.S. CREVALLE (SS291) - Report of Seventh War Patrol.",
    "box_2d": [
      [197, 319],
      [197, 682],
      [207, 682],
      [207, 319]
    ]
  },
  {
    "text_content": "H. TT CK D.T.",
    "box_2d": [
      [237, 396],
      [237, 490],
      [

— page 137 —
C-O-N-F-I-D-E-N-T-I-A-L

Subject: U.S.S. CREVALLE (SS291) - Report of Seventh War Patrol.

H. ATTACK DATA

U.S.S. CREVALLE (SS291) Torpedo Attack No. 9 Patrol No. 7
Time: 1242(I) Date: 21 June 1945 Lat. 42°-35' N. Long. 139°-48' E.

TARGET DATA - Damage Inflicted

Description:
Sighted a 4000 ton MFM goalposter and a 2000 ton MFM AK
escorted by a large DE or DD. Ships were hugging the beach
and escort was to seaward and midway between ships.

Ship Sunk: None.

Ship Damaged or
Probably Sunk: None.

Damage determined by:
No timed hits and torpedoes were seen to explode against the
beach.

Target Draft: ? Course: 035°T Speed: 9 kts. Range: 2600

Own Ship Data

Speed: 3 kts. Course: 250°T Depth: 65' Angle: ½° down.

Fire Control and Torpedo Data

Type Attack:
Day submerged periscope attack. First target was already
by good firing position for stern tubes which was all we had
left. Concentrated on second target. Closed as much as possible
then swung for stern tubes to bear. Passed directly under
escort in doing this. Used ST ranges. Fired 3 MK. 18-2
torpedoes with a run of 2800 yds, track 125° port, gyro 184,°
set at 8 feet, firing interval 10 seconds. Torpedoes spread
for 50% coverage. All torpedoes missed and were seen to explode
against the beach.

- 58 -

— page 138 —
The original image is a document, likely a report or a log, given its structured layout and numerical data. It appears to be a page from a military or naval record, specifically detailing torpedo attack data.

Here's a transcription of the text, distinguishing between typed and handwritten elements, and preserving the layout as much as possible.

```
C-O-N-F-I-D-E-N-T-I-A-L
Subject: U.S.S. CREVALLE (SS291) - Report of Seventh War Patrol.

H. ATTACK DATA (Cont'd)
TORPEDO ATTACK No. 9

|                           | #8        | #9        | #10       |
| :| :| :| :|
| Tubes Fired:              | #8        | #9        | #10       |
| Track angle:              | 125° P    | 125° P    | 125° P    |
| Gyro angle:               | 186°      | 183½°     | 184½°     |
| Depth Set:                | 8'        | 8'        | 8'        |
| MK. 18 speed used in TDC: | 27.7      | 27.7      | 27.7      |
| Hit or Miss:              | Miss      | Miss      | Miss

— page 139 —
C-O-N-F-I-D-E-N-T-I-A-L
Subject: , U.S.S. CREVALLE (SS291) - Report of Seventh War Patrol:

H. ATTACK DATA

U.S.S. CREVALLE (SS291) Torpedo Attack No. 10 Patrol No. 7
Time: 0047(I) Date: 22 June 1945 Lat. 43°-23' N. Long. 139°-47' E.

TARGET DATA - Damage Inflicted

Description: Picked up target on SJ radar, range 12,300 yds. Tracked him and
 determined target was on easterly course, zig-zagging, pinging, and
 gave evidence of having 10 cm radar. He probably was same ship that had
 hunted us for 7 hours as he was of the same type. Can not determine
 specific type as shown in recognition books. Determined him
 to be a large DE or DD of 1500 tons. Definitely not a DE or UN-1 class
 or MIKU-1 class PF (PF 17-24). Recognition features were large gun
 mounts forward and aft; large built up bridge structure, deckhouses
 midships; two masts, the forward one considerably taller than the after
 one; one raked stack close to bridge structure; high sloping bow.
 Closest identification is either YUGUMO or FUBUKI class DD's with the
 after stack removed.

Ship Sunk: One large DE or DD(EU)
Ship damaged or
Probably sunk: None.

Damage determined by:
 Heard one timed hit, screws slowed and pinging stopped. Six
 minutes later heard a very loud and long explosion such as boilers
 exploding or all depth charges going off. Screws stopped then.
 Upon return to periscope depth target appeared to be either on its
 side or down by the bow, silhouette was completely bare of superstructure.
 Upon surfacing silhouette remained the same. Radar pip was fuzzy
 at 7500 yds and disappeared at 9500 yds.

Target draft: ? Course: 115°T Speed: 11 Range: 1000.

Own Ship Data
Speed: 3 kts. Course: 120°T Depth: 55' Angle: 0°

Fire Control and Torpedo Data
Type attack: Night periscope radar. Tracked target and got ahead of him.
 Dove at about 9000 yds in bright moonlight. Picked him up on ST and

- 60 -

— page 145 —
C-O-N-F-I-D-E-N-T-I-A-L
Subject: U.S.S. CREVALLE (SS291) - Report of Seventh War Patrol.

Performance was satisfactory. Ranges of 35,000 (5000 ft peak), 8000
yd on small K's and 5000 yds on submarine.

SD-2 - Operated only enroute to and from area. No trouble encountered.
Ranges of 29 miles on large plane were obtained.

PR-1 & SP- -
Satisfactory performance throughout patrol.

BK-7 & BN.
Satisfactory performance.

N. SONAR GEAR AND SOUND CONDITIONS
Sound conditions in the area ranged from poor to fair. The JK-QC and
QB being used for search and JP used only during battle stations. The
effectiveness of the JP was considerably reduced by the excessive noise of
the bow plane tilting motor.
No work was required on the above equipment. The training motors for
both units are noisy, and the variac remote training control on the QB
makes a crackling noise in the receiver. Points were smoothed up and arc
suppressor checked without any positive results.
FOX MIKE - Performance satisfactory, normal up keep was all that was
required.
NC Fathometer - Due to seepage into the duct from the head to the
junction box in the Forward Torpedo Room, this equipment was out of
commission practically the entire patrol.

O. DENSITY LAYERS
Date | Latitude | Longitude | Depths | Temperature | Temperature
     | Deg. Min. Sec. | Deg. Min. Sec. | From To | From To | Change
6/3/45 | | | | 62° 61° | -1°
6/4 | | | | 67° 64° | -3°
6/4 | | | | 66° 58° | -8°
6/4 | | | | 63° 65° | +2°
6/4 | | | | 65° 57° | -8°
6/5 | 36-03-45 N | 130-41-50 E | 60' 220' | 62° 55° | -7°
6/5 | 36-24-20 N | 131-06-40 E | 60' 150' | 61° 57° | -4°

- 66 -

— page 146 —
C-O-N-F-I-D-E-N-T-I-A-L

Subject: U.S.S. CREVALLE (SS291) - Report of Seventh War Patrol.

                                        O. DENSITY LAYERS (Cont'd)
Date      Latitude          Longitude          Depths      Temperature
          Deg. Min. Sec. N  Deg. Min. Sec. E   From To     From To     Change

6/6       37-34-20 N        133-05-45 E        60' 100'    59° 56°     -3°
6/6       "      " N        "      " E         80' 190'    56° 50°     -6°
6/6       37-41-50 N        133-19-30 E        62' 90'     62° 58°     -4°
6/7       38-57-25 N        135-44-20 E        62' 90'     52° 47°     -5°
6/8       40-08-04 N        138-05-45 E        90' 110'    51° 45°     -6°
6/10      40-38-45 N        139-39-00 E        90' 90'     59° 58°     -1°
6/10      40-30-45 N        139-38-50 E        60' 130'    59° 53°     -6°
6/10      40-47-20 N        139-39-40 E        60' 120'    58° 53°     -5°
6/11      40-10-50 N        139-20-00 E        60' 205'    59° 50°     -9°
6/12      41-04-50 N        139-08-00 E        60' 90'     57° 56°     -1°
6/14      41-27-30 N        139-49-50 E        150' 340'   57° 50°     -7°
6/14      41-29-00 N        139-49-50 E        62' 340'    59° 47°     -12°
6/14      41-27-45 N        139-49-45 E        62' 160'    59° 57°     -8°
6/14      41-28-00 N        139-49-00 E        190' 220'    56° 52°     -4°
6/15      40-02-20 N        139°-20-35 E       62' 93'     54.0° 47.5° -6.5°
6/16      38-23-20 N        138°-11-00 E       62' 215'    56° 45°     -11°
6/17      38-15-20 N        138-03-30 E        Surf. 93'   57° 54°     -3°
6/18      38-55-00 N        139-33-40 E        79' 90'     62° 56°     -6°
6/19      38-33      N      139-43     E       120' 150'   63° 56°     -7°
6/20      38-51-00 N        139-42-00 E        120' 230'   62° 51°     -11°
6/21      43-19-00 N        139-36-30 E        60' 85'     57° 53°     -4°
6/20      38-51      N      139-42     E       60' 120'    60° 52°     -8°

                                  - 67 -

— page 147 —
C-O-N-F-I-D-E-N-T-I-A-L

Subject: U.S.S. CHEVALLE (SS291) - Report of Seventh War Patrol.

O. DENSITY LAYERS (Cont'd)
Date | Latitude | Longitude | Depths | Temperature | Change
     | Deg. Min. Sec. | Deg. Min. Sec. | From To | From To |
6/20 | 38-51 N | 139-42 E | 60' 70' | 63° 58° | -5°
6/21 | 43-30-45 N | 139-46-40 E | 80' 140' | 56° 45° | -11°
6/22 | 43-21-25 N | 139-37-50 E | 55' 75' | 50° 45° | -5°
6/23 | 46-09-30 N | 139-57-15 E | 85' | 47° 45° | -2°

P. HEALTH FOOD AND HABITABILITY

An Epidemic of colds broke out but was not too severe. This was expected
as the change in climate from Guam to the cold dampness of the weather in the
Japan Sea was made in slightly over a weeks time.
Food was well prepared and the menus varied. For an advanced base, Guam
provided a surprising variety of fresh frozen vegetables.
Habitability suffered during the long dives necessary in these latitudes
at this time of the year. However, the air conditioning held sweating down
to a minimum and the boat was not uncomfortably cold. No ill effects from the
prolonged dives were discernible.

Q. PERSONNEL

(a) Number of men detached after previous patrol [HANDWRITTEN: 15] .
(b) Number of men on board during patrol [HANDWRITTEN: 77] .
(c) Number of men qualified at start of patrol. [HANDWRITTEN: 55] .
(d) Number of men qualified at end of patrol. [HANDWRITTEN: 66] .
(e) Number of unqualified men making their first patrol [HANDWRITTEN: 15] .

The performance of duty of all hands was in accordance with the usual
high standards of the Submarine Force. Two replacements received at Guam
are not considered suitable submarine material and are to be transferred.
One officer, unqualified after 4 patrols, will also be transferred.

- 68 -

— page 153 —
FB5-43/A16-3
Serial N-0102
C O N F I D E N T I A L
FIRST ENDORSEMENT to
USS CREVALLE (SS291)
Com. ltr. 3529/A16-3,
ser. 092 of 7/5/45.

SUBMARINE DIVISION FORTY-THREE
Care of Fleet Post Office,
San Francisco, California,
6 July 1945.

From: The Commander Submarine Division FORTY-THREE.
To : The Commander-in-Chief, United States Fleet.
Via : (1) The Commander Submarine Squadron TEN.
(2) The Commander Submarine Force, Pacific Fleet.
(3) The Commander-in-Chief, U.S. Pacific Fleet.

Subject: U.S.S. CREVALLE (SS291) - Report of War Patrol Number Seven -
Comments on.

1. The Seventh War Patrol of the U.S.S. CREVALLE was conducted in the
Sea of Japan during the period 27 May - 5 July 1945. The patrol was characterized
by many targets, heavy loss in ships to the Japanese, and rather second rate torpedo
performance.

2. Summary of attacks is as follows:

(a) Torpedo Attack #1; 9 June 1945.
The target was picked up by SJ at 13,200 yds; seen at 6000 yds.
It was engines aft AK. Night surface radar approach and attack were
made. No escorts. No zigging. Two mark 18 torpedoes were fired
and two hits made. Torpedo run 2300 yds, track 80, target speed 8,
depth set 3 feet, no spread. Evidence of sinking was disappearance
from radar screen and nothing but smoke in sight.

(b) Torpedo Attack #2; 10 June 1945.
The target was sighted in the daytime by periscope. Periscope
approach and attack made. The target was a large old fashioned tug
towing a raft of logs. One mark 18 torpedo was fired; missed.
Torpedo run 800, track 90, target speed 3½ knots, depth set 3 feet.
Torpedo broached and target avoided.

(c) Torpedo Attack #3; 10 June 1945.
The target was sighted in the daytime by periscope. Periscope
approach and attack made. The target was an engine aft AK. Three
mark 18 torpedoes were fired for 2 hits. Torpedo run 900 yards,
track 40, target speed 7, depth set 8 feet, spread 4 degrees total.
The target sank at once.

(d) Torpedo Attack #4A; 11 June 1945.
The target was picked up by SJ at 18,000 yds. Night surface
radar approach and attack made. The target an AK. Two torpedoes
were fired; no hits. Torpedo run 2400 yds, track 90, target speed
8, depth set 6 feet, no spread. Either the target saw the sub-
marine or the one torpedo that broached. In any event her torpedo
evasion tactics were successful.

- 1 -

— page 154 —
SUBMARINE DIVISION FORTY-THREE

FB5-43/A16-3

Serial N-0102

CONFIDENTIAL

Subject: U.S.S. CREVALLE (SS291) - Report of War Patrol Number Seven -
           Comments on.

Care of Fleet Post Office,
San Francisco, California,
6 July 1945.

(e) Torpedo Attack #4B; 11 June 1945.
    The same target as in Attack #4A; submerged periscope and
    ST attack. Two mark 18 torpedoes fired; 2 hits. Torpedo run
    1400 yds, track 90, target speed 3 3/4 knots, depth set 8 feet,
    total spread 3 degrees. The target, an AK, was seen to sink.

(f) Torpedo Attack #5; 11 June 1945.
    The target group consisted of 3 AKs and 2 DDs sighted by
    periscope in the daytime. Interference by DDs made it impossible
    to get in to the AKs so fired down the throat of one of the DDs.
    Torpedo run 1450 yds, track 11, target speed 11, depth set 4 feet,
    total spread 1 degree, small gyros. Three mark 18 torpedoes
    fired; all missed. Reason not known. Depth charge attacks fol-
    lowed.

(g) Torpedo Attack #6; 18 June 1945.
    The target group consisted of 3 AKs and was picked up by
    periscope in the daytime. Periscope attack made. One mark 18
    torpedo fired; missed. Torpedo run 2600 yds, track 115, target
    speed 9 knots, depth set 8 feet. The Commanding Officer suspects
    that the misses were due to erratic torpedo speed.

(h) Torpedo Attack #7; 19 June 1945.
    The target group consisted of 2 AKs and were sighted by
    periscope in the daytime. Periscope attack was made. Two mark
    18 torpedoes were fired; no hits. Torpedo run 1400 yds, track
    80, target speed 8, depth set 9 feet, total spread 4 degrees.
    Apparently a broaching torpedo disclosed attack and the target
    evaded them.

(i) Torpedo Attack #8; 20 June 1945.
    The target group consisted of 2 AKs and was sighted by
    periscope in the daytime. Two mark 18 torpedoes were fired; no
    hits. Torpedo run 2600 yds, track 100, target speed 8, depth
    set 6 feet, total spread 2 degrees. No reason is given for the
    failure of this attack.

(j) Torpedo Attack #9; 21 June 1945.
    The target group consisted of 2AKs and one DD or DE. They
    were sighted by periscope in the daytime and periscope attack
    made. Three mark 18 torpedoes were fired; no hits. Torpedo
    run 2600 yds, track 125, target speed 9 knots, depth set 8 feet,
    total spread 2 degrees. No reason is given for the misses. The
    Division Commander's reason is unfavorable firing position.

- 2 -

— page 155 —
SUBMARINE DIVISION FORTY-THREE

FB5-43/A16-3
Serial N-0102

Care of Fleet Post Office,
San Francisco, California,
6 July 1945.

C O N F I D E N T I A L
Subject: U.S.S. CREVALLE (SS291) - Report of War Patrol Number Seven -
Comments on.

— page 156 —
SUBMARINE SQUADRON TEN
Fleet Post Office
San Francisco, California
11/rhb

FC5-10/A16-3
7 July 1945

Serial: 0152

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

SECOND ENDORSEMENT to
U.S.S. CREVALLE (SS291)-
Report of War Patrol
Number Seven.

From: The Commander Submarine Squadron TEN.
To : The Commander-in-Chief, UNITED STATES FLEET.
Via : (1) The Commander Submarine Force, PACIFIC
FLEET, Administration:
(2) The Commander-in-Chief, U.S. PACIFIC FLEET.

Subject: U.S.S. CREVALLE (SS291) - Report of War Patrol
Number Seven.

1. Forwarded. With the exception of paragraph
3 of the first endorsement, the Squadron Commander concurs
in the remarks of the Commander Submarine Division FORTY-THREE.

2. The Commander Submarine Squadron TEN takes great
pleasure in congratulating the Commanding Officer, officers
and crew of the U.S.S. CREVALLE upon the high degree of courage
and skill shown in the successful completion of this difficult
patrol, which will live long in the annals of submarine warfare.

3. It is recommended that the U.S.S. CREVALLE be
credited with the following:
SUNK
1 - SCL (EC) (Type D modified) 2300 tons
1 - SCL (EC) (Type D modified) 2300 tons
1 - SCL (EC) (Type D modified) 2300 tons
1 - DD (EU) 1500 tons
1 - Mis. (Lugger) 75 tons
1 - Mis. (Sampan) 25 tons
Total Sunk 8500 tons

[SIGNATURE: G. E. PETERSON]
G. E. PETERSON.

— page 157 —
F12-10(A)/A16-3(18) SUBMARINE FORCE, PACIFIC FLEET mr
Serial 01770 Care of Fleet Post Office,
San Francisco, California,
CONFIDENTIAL 16 July 1945.

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

COMSUBSPAC PATROL REPORT NO. 816
U.S.S. CREVALLE - SEVENTH WAR PATROL.

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

Subject: U.S.S. CREVALLE (SS291) - Report of Seventh War Patrol
(27 May to 5 July 1945).

1. The seventh war patrol of the CREVALLE, under the com-
mand of Commander E. H. Steinmetz, U.S. Navy, was conducted in the
northeastern section of the Japan Sea along the western coast of
Honshu and Hokkaido. The CREVALLE, U.S.S. SPADEFISH, and U.S.S. SEA
DOG formed a coordinated attack group, with the commanding officer of
the SEA DOG as the group commander.

2. The CREVALLE during this outstanding patrol made
numerous enemy contacts. She aggressively attacked at every oppor-
tunity, and although torpedo performance was disappointing, she
struck the enemy a most severe blow by sinking three merchant craft,
a destroyer or destroyer escort, and two small craft.

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

4. The Commander Submarine Force, Pacific Fleet, takes
great pleasure in congratulating the commanding officer, officers,
and crew of the CREVALLE for this daring, courageous and successful
patrol, which reflects the greatest credit upon each officer and man.
The CREVALLE is credited with having inflicted the following damage
upon the enemy during this patrol:

S U N K

1 - Small AK (SCL Type D Modified)(EC) - 2,300 tons (Attack No. 1)
1 - Small AK (SCL Type D Modified)(EC) - 2,300 tons (Attack No. 3)
1 - Small AK (SCL Type D Modified)(EC) - 2,300 tons (Attack No. 4B)
1 - DD (EU) - 1,500 tons (Attack No. 10)
1 - MIS (Lugger) (EC) - 75 tons (Gun Attack No.1)
1 - MIS (Sampan) (EC) - 25 tons (Gun Attack No.1)

TOTAL SUNK 8,500 tons

Distribution & Authentication MERRILL COMSTOCK.
next page.

- 1 -

— page 158 —
FF12-10(A)./A16-3(18)
Serial 01770
CONFIDENTIAL

THIRD ENDORSEMENT to
CREVALLE Report of
Seventh War Patrol.

COMSUBSPAC PATROL REPORT NO. 816
U.S.S. CREVALLE - SEVENTH WAR PATROL.

Subject: U.S.S. CREVALLE (SS291) - Report of Seventh War Patrol
(27 May to 5 July 1945).

— page 159 —
END OF REEL [HANDWRITTEN: # 9]
JOB NO. [HANDWRITTEN: F-108]
[HANDWRITTEN: AR 127-78]

| 1.0 | 4.5 | 2.8 | 2.5 |
|---|---|---|---|
| | 5.0 | 3.2 | 2.2 |
| 1.1 | 5.6 | 3.6 | 2.0 |
| | 6.3 | 4.0 | 1.8 |
| 1.25 | 1.4 | 1.6 |

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

— page 160 —
START OF REEL
JOB NO. [HANDWRITTEN: AR-52-81]
[HANDWRITTEN: E-108]

OPERATOR [HANDWRITTEN: L. Frye]

DATE [HANDWRITTEN: 5-6-81]

1.0
4.5 2.8 2.5
5.0 3.2 2.2
5.6 3.6 2.0
1.1
1.8
1.25 1.4 1.6

THIS MICROFILM IS
THE PROPERTY OF
THE UNITED STATES
GOVERNMENT

[STAMP: DEPARTMENT OF DEFENSE UNITED STATES OF AMERICA]

MICROFILMED BY
NPPSO-NAVAL DISTRICT WASHINGTON
MICROFILM SECTION

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

— page 161 —
[HANDWRITTEN: NRS 261]

[HANDWRITTEN: CREVALLE (SS-291)]
[HANDWRITTEN: WWII REPORT FILE]
[HANDWRITTEN: ALL MATERIAL ON THIS REEL IS DECLASSIFIED]

[HANDWRITTEN: 35MM]

— page 162 —
DATE 14-15 January 1944
FROM Commanding Officer USS CREVALLE(SS-291)
NAME CREVALLE
SERIAL none
DATE 19 February 1944
SUBJECT SPECIAL MISSION
Report of mine plant near Kega Point, French Indo-China
during SECOND WAR PATROL. Eleven mines planted from the
surface in successful operation.
(SOWESPAC: SUBS OPS)
FILED: War Diary

Separately as CARBON COPY

MICROSERIAL NO. | ACTION REPORT OPNAV FORM 3480-13 (11-55)
G 20432

[STAMP: DECLASSIFIED]
DATE 9-12 MAY 1944
FROM CO - USS CREVALLE(SS-291)
NAME CREVALLE
SERIAL 014
DATE none
SUBJECT Special Mission. Report of
Report of special mission during THIRD WAR PATROL. Sub
evacuated 40 passengers from NEGROS Island, PHILIPPINES to
DARWIN, AUSTRALIA.
(SOWESPAC: US-SUB OPS)
FILED: War Diary

Separately as ORIGINAL CARBON COPY

MICROSERIAL NO. | ACTION REPORT OPNAV FORM 3480-13 (11-55) B-28693

DATE 19 Jun-23 Aug 1944
FROM CROSS INDEX CARD
NAME CREVALLE
SERIAL
DATE
SUBJECT Coordinated Attack Group
Report of coordinated search and attack operations of USS
FLASHER, USS CREVALLE & USS ANGLER in South China Sea.
84,700 tons sunk or damaged by this group.
(SOWESPAC: SUB OPS)
FILED: War Diary

Separately under FLASHER ser 017 of 29 Aug 44

MICROSERIAL NO. | ACTION REPORT OPNAV FORM 3480-13 (11-55) B-28693

— page 163 —
DATE 11 September 1944                                        NAME CREVALLE
FROM Commanding Officer USS CREVALLE(SS-291)
                                                              SERIAL 0030
                                                              DATE 16 September 1944
SUBJECT DAMAGE REPORT
Narrative report (to SUBS,7thFlt) of damage and casualties
incurred from operational casualty during surfacing
in Lat 6-20S, Long 118-42E on FIFTH WAR PATROL.
(SOWESPAC:SUBS)
FILED: War Diary

Separately as CARBON COPY

MICROSERIAL NO.                                               ACTION REPORT OPNAV FORM 3480-13 (11-55)
G 20432

                                                                                             A
DATE 9-26 April 1945                                          NAME CREVALLE
FROM C.O. USS CREVALLE (SS-291)
                                                              SERIAL 00058
                                                              DATE 3 May 1945
SUBJECT SUBMARINE ACTION REPORTS, Forwarding of
Forwards reports of three torpedo firings on SIXTH WAR
PATROL in the East China Sea area. Claims 2 sinkings.
(CENPAC: SUBS)
FILED: War Diary

Separately as CARBON COPY

MICROSERIAL NO.                                               ACTION REPORT OPNAV FORM 3480-13 (11-55) B-28682

                                                                                             A
DATE 22-25 April 1945                                         NAME CREVALLE
FROM USS CREVALLE(SS-291)
                                                              SERIAL 00056
                                                              DATE 27 April 1945
SUBJECT Special Mission, Report of
Report of reconnaissance mission by USS CREVALLE of mine
fields in Lat. 34-05N, Long. 128-48E area off JAPAN.
(CENPAC: US SUB OPS)
FILED: War Diary

Separately as ORIGINAL CARBON COPY
                                                                                             (OVER)
MICROSERIAL NO.                                               ACTION REPORT OPNAV FORM 3480-13 (11-55) B-28682

— page 164 —
[STAMP: UNCLASSIFIED]
DATE 3-25 June 1945
FROM Commanding Officer USS CREVALLE(SS-291)

NAME CREVALLE
A
SERIAL 0091
DATE 5 July 1945

SUBJECT SPECIAL MISSION - Operation BARNEY

Report(to SUBSPAC, Adminis) of patrol against Japanese ship-
ping in Sea of Japan by submarine pack which transited
Nishi Suido minefields. SEVENTH WAR PATROL of CREVALLE.
[STAMP: UNCLASSIFIED]

FILED: War Diary

Separately as CARBON COPY

MICROSERIAL NO.
ACTION REPORT OPNRY FORM 3880-13 (11-55)
G 20432

— page 165 —
In reply
refer to:

SS291/

Serial
SECRET
[STAMP: DECLASSIFIED]

From:
To :
Via :
Subject:
Reference:

Enclosure: U. S. S. CHEVALLE (SS291)

CONFIDENTIAL

The Commanding Officer.
The Commander-in-Chief UNITED STATES FLEET.
Official Channels.
Mining mission-South China Coast, Report of.
(a) Commander Task Group Seventy One Point One,
Secret Operation Order 51-43, Annex Dog.
(A) Plot of minefield.

1. Pursuant to the instructions contained in
reference (a), it is reported that a field of eleven Mark 12 mines
was laid from the surface by this vessel during the night of
14-15 January 1944 in the vicinity of KEGA POINT, FRENCH INDO CHINA.
The field limits, as defined in the reference, were:

Latitude Longitude
(a) 10-36-20 N 108-00-30 E
(b) 10-32-00 N 108-03-00 E
(c) 10-30-50 N 108-01-00 E
(d) 10-35-00 N 107-58-30 E

The field was laid in a continuous sine wave
from north to south in a mean depth of water of fourteen fathoms.
A speed of 10 knots and 300# ejection pressure was used. Average
distance between mines was 1000 yards. No mechanical difficulties
of any type were experienced. No prematures were observed and no
opposition or evidence of observation of the plant or of this
vessels' approach and withdrawal to and from the field was noted.
Due to the shallowness of the area no attempt was made to hover
to observe the effectivness of the field.

2. From all available navigational data the follow-
ing are the positions of the individual mines.

[SIGNATURE: J. K. Keen] [HANDWRITTEN: 40ct60]

— page 166 —
In reply
refer to:

U. S. S. CREVALLE (SS291)

c/o Fleet Post Office,
San Francisco, Calif.
19 February 1944.

SS291/

Serial
SECRET

Subject: Mining mission-South China Coast, Report of.

— page 167 —
[HANDWRITTEN: 11°00'N]
[HANDWRITTEN: 108°00'E]
[HANDWRITTEN: 11°00'N]

[HANDWRITTEN: NUI TAKU]
[HANDWRITTEN: NUI KHONG]
[HANDWRITTEN: NUI NHUM]

[HANDWRITTEN: KEGA PT]
[HANDWRITTEN: 216°T]
[HANDWRITTEN: 1.0 Km.]

[HANDWRITTEN: 10°30'N]
[HANDWRITTEN: 10°30'N]

[HANDWRITTEN: U.S.S. CREVALLE]
[HANDWRITTEN: MINE PLANT]
[HANDWRITTEN: JANUARY 14, 1944.]
[HANDWRITTEN: HO Chart 3148]

[HANDWRITTEN: 108°00'E]

— page 168 —
[HANDWRITTEN: [9-12 MAR 44]]
[STAMP: CANNON CO]
U. S. S. CREVALLE(SS291)

DECLASSIFIED

SS291/
Serial (014)

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

Subject: U.S.S. CREVALLE, Report of Special Mission
performed during War Patrol #3.

Enclosure: (A) Narrative of War Patrol #3 from 9 May 1944,
to 12 May 1944, inclusive.
(B) List of passengers.

1. Enclosure (A) is submitted herewith as a separate
report in order to permit a more limited distribution than is
accorded the War Patrol Report. All times in this report are
zone minus eight.

5 2. At 2300 7 May 1944, CREVALLE received orders to
proceed to the eastern part of the SULU SEA and be prepared
for a special mission about 11 May 1944. On 8 May 1944, tran-
sitted BALABAC STRAIT and headed across SULU SEA. At 1616 8 May
1944, received instructions to proceed to position just north
of BASAY, NEGROS, (Lat 9-24 N. Long. 122-36E), and at sunset
11 May 1944, after observing security signal, surface and receive
from native sailboats about 25 passengers and important documents.

3. Rendezvous was made as scheduled. Security signal
was displayed as described by forces ashore and native boats came alongside prompt-
ly at 1746 when CREVALLE surfaced. Lt. Col. SALVADOR ABCEDE,
U.S.F.I.P., District Commandant, came on board with documents and
other baggage, were taken below. Twenty
eight of the passengers were women and children. A full list
appears as Enclosure (B). A limited amount of food, ammunition
and canteen supplies was transferred to the forces ashore. The
elapsed time of the entire operation was 51 minutes from surfacing
to taking departure.

4. The Commanding Officer desires to invite the attention
of higher authority to the thorough organization of this operation
by forces ashore and the efficiency with which it was carried out.
Boats did not appear on the beach until 1630. They were loaded in
accordance with priority and came alongside promptly. Communication
between boats was by "Walkie Talkie" radio. Through this means
Lt. Col ABCEDE was able to direct operations without confusion
despite the heterogeneous character of the passenger list.

— page 169 —
SECRET
U.S.S. CREVALLE(SS291)

Narrative of USS CREVALLE, 3rd War Patrol, 9 May 1944, to 12 May 1944,
inclusive.

9 May 1944:
          Enroute BALABAC STRAIT to eastern part of SULU SEA on
          course 080 T. at 11 knots.
1917      Changed course to 070T.
2023      Changed speed to 7 knots.
1200      Position: Lat. 8-30 N. Long. 119-09 E.
          Miles Steamed: 185.
          Fuel Used: 1356 gallons.

10 May 1944:
          Enroute BALABAC STRAIT to rendezvous for special mission
          on course 070T at 7 knots.
0551      Changed speed to 11 knots.
1005      Sighted peaks of NEGROS ISLAND bearing 070T.
1318      Dived, fifteen miles off coast of NEGROS ISLAND to approach
          rendezvous for reconnaissance of rendezvous point.
1631      With coast distant 3 miles changed course to 120 T. heading
          toward BASAY village examining coastline carefully.
1810      Changed course to 090 T. to clear coast.
1904      Surfaced on course 220 T. Changed speed to 11 knots.
1953      Changed course to 270 T. Began running ten mile legs east
          and west adjusting run so as to be ten miles off coast at
          rendezvous point.
1200      Position: Lat. 9-15 N. Long. 122-04 E.
          Miles steamed: 175.
          Fuel Used: 1295 gallons.

11 May 1944.:
          Running ten mile East-West legs at 11 knots with inner
          turning point 10 miles west of BASAY, NEGROS ISLAND.
0440      Changed speed to 17 knots to close coast. Changed
          course to 072 T.
0452      Changed course to 045 T.
0507      Dived on course 050 T. twelve miles from coast. Approaching
          rendezvous submerged.
0813      Sighted a sailboat north bound along coast.
0845      Changed course to 120 T. to examine coast for security sig-
          nal. We were now 2 miles off coast.
0855      Sighted security signal on shore. Sailboat passed at about
          2500 yards. Took pictures of boat and signal. Closed coast
          to 1 mile to scrutinize signal.
0910      Began running hourly legs on 210 T. and 030 T. maintaining
          position at inner turning point 1 mile from coast at rendezvous.
1322      Sighted another sailboat going south. This appeared to be
          same as previous boat and passed south about a half mile off
          beach.
1630      Boats began to appear on the beach. A large number of people
          were gathered around them.
1700      Two large bancas, a large pulling boat and a small canoe
          stood out from the beach about one mile south of rendezvous.

— page 171 —
11 May 1944: (con't)
1730 Stationed special security details and prepared for
     surfacing.
1744 Came to 50 feet for radar sweep.
1746 Surfaced and closed boats at high speed.
1757 First banca with Lt. Col. SALVADOR ABCEDE came along-
     side.
1759 Opened after battery hatch, began taking passengers and
     cargo below.
1837 Lt. Col. ABCEDE and last boat cleared the side. Set
     course 216 T. at 16 knots clearing coast.
1200: Position: Lat. 9-28 N. Long. 122-33E.
     Miles Steamed: 138.
     Fuel Used: 1513 gallons.

— page 172 —
FE24-71/A16-3
Serial: 0006
TOP SECRET

FIRST ENDORSEMENT to:
USS CREVALLE (SS291)
Secret Ltr. Serial 014,
not dated.

From:
To:

Subject:

Enclosures:

1.
with.

2.
of the report contained in enclosure (A) is hereby changed
from "SECRET" to "TOP SECRET".

16/gms

29 MAY 1944.

The Commander Submarines, SEVENTH Fleet.
The Commander SEVENTH FLEET.

U.S.S. CREVALLE, Report of Special Mission
Performed during Third War Patrol.

(A) Original copy of Narrative of Third War
Patrol, from 9 May, 1944, to 12 May, 1944,
inclusive.
(B) Original copy of List of Passengers.

Enclosures (A) and (B) are forwarded here-

For reasons of security the classification

P. G. NICHOLS,
Chief of Staff.

— page 173 —
[HANDWRITTEN: 2]
[STAMP: DECLASSIFIED]
[HANDWRITTEN: By J.W. Date 9-4-90]
SS249/A16-3
Serial 017
[STAMP: DECLASSIFIED]
[HANDWRITTEN: By J.W. Date 9-4-90]

From:
To :
Via :

Subject:

Reference:

Enclosure:

1.
is herewith submitted. This group operated in the South
China Sea off Cape Varella and off Manila. References (a),
(b), and (c) cover the detailed activities of individual
submarines.

[TYPED: 2]
[STAMP: DECLASSIFIED]
[HANDWRITTEN: By J.W. Date 9-4-90]
U.S.S. FLASHER (SS249),

Care of Fleet Post Office,
San Francisco, California,
24 August, 1944.

The Commanding Officer, U.S.S. FLASHER.
(1) The Commander-in-Chief, United States Fleet.
(1) The Commander Submarines, Squadron Twelve.
(2) The Commander Submarines, Seventh Fleet.
(3) The Commander Seventh Fleet.

War Patrol of Coordinated Search and Attack
Group Consisting of U.S.S. FLASHER, U.S.S.
CREVALLE, and U.S.S. ANGLER from June 19,
1944 to August 23, 1944, report of.

(a) Report of War Patrol Number 3, U.S.S.
FLASHER.
(b) Report of War Patrol Number 4, U.S.S.
CREVALLE.
(c) Report of War Patrol Number 4, U.S.S.
ANGLER.

(A) Subject War Patrol Report.

Enclosure (A) covering the subject war patrol

[SIGNATURE: R. T. WHITAKER.]

— page 174 —
CONFIDENTIAL
WAR PATROL OF COORDINATED SEARCH AND ATTACK GROUP, U.S.S.
FLASHER, U.S.S. CREVALLE AND U.S.S. ANGLER.

— page 175 —
CONFIDENTIAL.

WAR PATROL OF COORDINATED SEARCH AND ATTACK GROUP, U.S.S.
FLASHER, U.S.S. CREVALLE AND U.S.S. ANGLER.

— page 176 —
CONF CONFIDENTIAL
WAR PATROL OF COORDINATED SEARCH AND ATTACK GROUP, U.S.S.
FLASHER, U.S.S. CREVALLE AND U.S.S. ANGLER.

— page 177 —
CONFIDENTIAL
WAR PATROL OF COORDINATED SEARCH AND ATTACK GROUP, U.S.S.
FLASHER, U.S.S. CHEVALLE AND U.S.S. ANGLER.

— page 178 —
CONFIDENTIAL:
WAR PATROL OF COORDINATED SEARCH AND ATTACK GROUP, U.S.S.
FLASHER, U.S.S. CHEVALLE AND U.S.S. ANGLER.

— page 179 —
CONFIDENTIAL
WAR PATROL OF COORDINATED SEARCH AND ATTACK GROUP, U.S.S.
FLASHER, U.S.S. CHEVALLE AND U.S.S. ANGLER

— page 180 —
**CONFIDENTIAL**

WAR PATROL OF COORDINATED SEARCH AND ATTACK GROUP, U.S.S.
FLASHER, U.S.S. CHEVALLE AND U.S.S. ANGLER.

— page 181 —
CONFIDENTIAL
WAR PATROL OF COORDINATED SEARCH AND ATTACK GROUP, U.S.S.
FLASHER, U.S.S. CREVALLE AND U.S.S. ANGLER.

— page 182 —
Care of Fleet Post Office
San Francisco, California,
3 September 1944

FC5-18/A16-3 SUBMARINE SQUADRON EIGHTEEN Wx
Serial 0162
CONFIDENTIAL
FIRST ENDORSEMENT to
CO FLASHER (SS249)
Conf. ltr. A16-3 dated
29 August 1944.

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

Subject: War Patrol of Coordinated Search and Attack
         Group Consisting of U.S.S. FLASHER (SS249),
         U.S.S. CREVALLE (SS291) and U.S.S. ANGLER
         (SS240) from 19 June 1944 to 23 August 1944,
         report of.

         1. Although the first submarine of this coordi-
         nated attack group left Fremantle on 19 June 1944, the
         entire group was not formed until 12 July 1944, the delay
         being caused by a casualty to U.S.S. ANGLER. Prior to
         formation of the group, U.S.S. FLASHER, acting independ-
         ently, sank 1 large AK and one large AK-AP in a night sur-
         face attack on 29 June and a medium AK in another night
         surface attack on 7 July 1944, expending ten torpedoes.

         2. The pack was formed off Cape Varella, French
         Indo-China on 12 July, and the following day FLASHER made
         contact with a small convoy in low visibility; search by the
         pack for this convoy was negative. On the 19th, FLASHER in
         day periscope attack, hit a KUMA class cruiser with two torp-
         edoes. Subsequent search for this vessel by the pack was
         negative and all indications are that it sank.

         3. On 21 July the area for the group was shifted
         to Manila. Four days later ANGLER sighted a large convoy
         and in a beautifully executed coordinated attack lasting some
         thirty hours, the following damage was inflicted: FLASHER
         got two hits in a large AK, one in another AK and one in a
         tanker which blew up; ANGLER got two hits in a large AK and
         probably sank an escort vessel; CREVALLE sank one large ship
         with four hits and another with two, and later in the morn-
         ing of 26 July polished off an AK which had been crippled by
         the FLASHER.

         4. FLASHER returned to base after this, all torp-
         edoes having been expended. On the 28th CREVALLE was able
         to sink the HAKUBASAN MARU as result of information furn-
         ished by ANGLER in a periscope down-the-throat shot. This
         - 1 -

— page 183 —
FC5-18/A16-3
Serial 0162
CONFIDENTIAL

Subject: SUBMARINE SQUADRON EIGHTEEN Wx
Care of Fleet Post Office,
San Francisco, California,
3 September 1944

War Patrol of Coordinated Search and Attack
Group Consisting of U.S.S. FLASHER (SS249),
U.S.S. CHEVALLE (SS291) and U.S.S. ANGLER
(SS240) from 19 June 1944 to 23 August 1944,
report of.

attack expended CREVALLE'S torpedoes and she returned to base.
The ANGLER patrolled independently until 10 August in South
China Sea but the patrol was uneventful.

5. The remarks and estimate of damage by the group
commander are concurred in. The excellence of communications
is most gratifying.

6. The attack by the group on the large convoy
off the Philippines on 25-26 July 1944 was outstanding, both
as to results obtained and to method of execution. In the face
of heavy air and surface coverage, all submarines pressed home
their attacks in a manner which reflects great credit on the
courage and skill of the three commanding officers and their
ships.

7. The squadron commander takes great pleasure in
congratulating the group commander and the commanding officers,
officers and men of the individual submarines on a job well
done.

[SIGNATURE: Eliot H. Bryant]
ELIOT H. BRYANT.

— page 184 —
FE24-71/A16-3

Serial: 01005

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

SECOND ENDORSEMENT to:
USS FLASHER Conf. ltr.
A16-3 Serial 017 dated
29 August, 1944.

From: The Commander, Submarines, SEVENTH FLEET.
To : The Commander-in-Chief, UNITED STATES FLEET.
Via : The Commander, SEVENTH FLEET.
Subject: War Patrol of Coordinated Search and Attack Group
Consisting of U.S.S. FLASHER, U.S.S. CREVALLE, and
U.S.S. ANGLER from June 19, 1944 to August 23, 1944
report of.

1. This Coordinated Attack Group conducted operations in
the SOUTH CHINA SEA.

2. The group, consisting of FLASHER, CREVALLE, and ANGLER,
was commanded by Lieutenant Commander R. T. WHITAKER, U.S.N.,
Commanding Officer, U.S.S. FLASHER.

3. Only one convoy was attacked by all three ships as a
group. ANGLER sighted and reported a large convoy shortly after sun-
rise July 25th. Each submarine made one submerged approach during
daylight, but due to radical changes of base course, only CREVALLE
was able to reach a firing position. Her attack was unsuccessful
because of poor visibility. FLASHER regained contact with the con-
voy after dark, but refrained from attacking until at least one
other submarine had also gained contact, since she had only six tor-
pedoes remaining. This proved to be a sound decision. It is un-
likely that either of the other ships could have regained contact
without the excellent information provided by FLASHER at frequent
intervals. FLASHER attacked at 0213 the next day, shortly after
[UNCLEAR: dark]. In a night surface attack she sank
one large AO and one large AK, and damaged another large AK.
ANGLER attacked next at 0400, damaging and probably sinking a large
AK. CREVALLE attacked at 0430, just prior to dawn, sinking two large
AK's. Unfortunately, all three submarines were forced to dive after
their attacks, and contact with the convoy was lost. During the
forenoon, however, CREVALLE sighted and sank the large AK previously
damaged by FLASHER.

[HANDWRITTEN: 222]
4. The Task Force Commander concurs with the remarks of
the Coordinated Group Commander. The necessity for each submarine

UNITED STATES NAVY
12a/gr
[STAMP: RECEIVED S-C FILES] 10 September 1944.
[STAMP: Room 2055]
[STAMP: 27 SEP 1944]
[HANDWRITTEN: A16-3(23)/S]
[STAMP: FILE "CincPac" FILES]
[STAMP: SEP 26 1944]
[STAMP: RECEIVED]
[STAMP: NAVY DEPARTMENT]
[STAMP: ROUTE TO:]
[STAMP: Op File No.]
[STAMP: Des. No.]
[STAMP: Copy No.]
[STAMP: Date]

[HANDWRITTEN: Finished - Watkins - File]
[HANDWRITTEN: (SC) A16-3(23)/S]

— page 187 —
[HANDWRITTEN: A16-3/L11]
[HANDWRITTEN: 0]
[HANDWRITTEN: 3]

In reply
refer to:

SS291/ A16-4/L11
Serial 0030

[HANDWRITTEN: By hand from Capt. Tideman who rec'd from Sd. Cdr. S. of J. Lynch (L/M)]

U. S. S. CREVALLE (SS291)

Care of Fleet Post Office,
San Francisco, California,

16 September, 1944.

[STAMP: DECLASSIFIED]

From: The Commanding Officer,
To : The Commander Submarines SEVENTH FLEET.
Via : (1) The Commander Submarine Division ONE SIXTY ONE.
(2) The Commander Submarine Squadron SIXTEEN.

Subject: Casualty to U.S.S. CREVALLE - Preliminary Report of.

Enclosures: Statements of personal.

1. While on war patrol in enemy waters on September 11, 1944,
surfacing from a routine trim dive, a casualty caused the U.S.S. CREVALLE
to flood the pump room completely and partially flood the conning tower and
control room. This casualty necessitated termination of the patrol and
return to base.

2. At 0611, September 11, 1944, while proceeding to patrol
station in enemy waters (position 6-20 S - 118-42 E) the CREVALLE made a
routine trim dive. At 0624 after an SD radar sweep, the ship was surfaced
from 50 feet. The Executive Officer, Lieutenant Commander RUNE, U.S. Navy,
was in charge of the operation and was in the conning tower. Lieutenant
H.J. BLIND, U.S. Naval Reserve, was Officer-of-the-Deck, also in the conning
tower and Ensign R.E. ROWE, U.S. Navy, was Junior Officer-of-the-Deck and
acting as diving officer. The Commanding Officer was in his stateroom.
At the command "surface" all main ballast tanks and bow buoyancy tank
were blown with high pressure air and the ship was brought to a level of 23
feet. The low pressure blower was started immediately. The hatch was cracked
and when no water appeared was opened. FRITCHEN, William L., GM2c., USNR, who
opened the hatch and Lieutenant BLIND went to the bridge. CULLEY, Harold R.,
GM3c., USNR, the next lookout in line, was in the hatch when water started
pouring through with great force. CULLEY was knocked from the upper hatch
into the corner and was under water. NIEMCZYK, Joseph M., TM2c., USNR, the
wheel. MORABACK, Gilbert L., TM2c., USNR, the next lookout behind CULLEY was
washed down into the control room. NIEMCZYK, Joseph M., TM2c., USNR, the
helmsman, tried to close the hatch but was knocked aside by the flow of water
and also fell into the control room. The flow of water plus NIEMCZYK and
MORABACK dislodged the canvas deck covering which partially blocked the lower
hatch.

The upper hatch closed at 150 feet by gauge. No one in the conning
tower could get to it and apparently it closed of itself. Lieutenant Commander
RUNE had given the order to back full and blow all ballast as soon as water
started coming down the hatch. He also ordered the hatch shut and tried to get
to it to shut it himself but the force of the water was too great.
From the statements of the control watch the "surface" proceeded normally
with the boat coming up to 23 feet with a slight up angle. Low pressure blower
was started and tanks were being blown. The stern planes were placed on 15° div.

Page - 1 -
[HANDWRITTEN: ComSubDivOneSixOne BOX #S-1481/RS #1180.3 FTT A16-3/L11 PACKET #BHC]

— page 188 —
In reply
refer to:
SS291/ A16-4/L11
Serial 0030
SECRET
Subject: Casualty to U.S.S. CREVALLE - Preliminary Report of. (Cont'd).

— page 189 —
In reply                                U. S. S. CREVALLE (SS291)                               (1/mx)
refer to:
                                         Care of Fleet Post Office,
                                         San Francisco, California,
SS291/ A16-4/L11                         16 September, 1944.

Serial    0030

S-E-C-R-E-T

Subject:  Casualty to U.S.S. CREVALLE - Preliminary Report of. (Cont'd).

          2.        (Continued)

          When Commanding Officer reached bridge Ensign BOWE said that he had
seen two heads in the water and all that time the lookout had both in sight.
Shortly thereafter, however, only one head could be seen. The ship was conned
to that. Steering in hand was very stiff but ship passed about 50 feet from
man. He called that he was exhausted so Lieutenant (jg) W.F. MAZZONE, USNR.,
dove over the side and swam out to him towing him back to the ship. This was
FRITCHEN, William L., GM2c., USNR., the first man to get through the hatch.
He stated that the last he saw of Lieutenant BLIND he was headed back for the
hatch and was already under the bridge overhead.

          FRITCHEN states that by the time he reached the cigarette deck, the man
deck could not be seen at all and was up within two feet of the cigarette
deck. This water closed over the deck rapidly and chased him up the radar
mast. He pulled off from there and only missed the screws by frantic swimming.
He states that the screws were out of the water at one point. FRITCHEN is
reasonably athletic and he was in the state of exhaustion testifies to the
exertion he must have used.

          From the time of the casualty until surfacing communication with the
maneuvering room was cut off. The order "all back'full" was given by Lieutenant
helmsman had been washed from the engine
Commander RUHE but inasmuch as the
telegraphs and the phone man, SNELLINGS, Earl M., CQM(AA)(T), U.S. Navy, was
washed against the after end of the engine room. The Commanding Officer called for a
swepted down this word also did not get through
to the motors. In the crew's space,
YEAGER, Robert L., MoMM1c., USN., who has been a battle stormplanesman since
commissioning, manned the telegraphs and gave the order to back full himself. This order
was obeyed by maneuvering room and was largely responsible for the rapid leveling
off of the boat. His quick thinking in the emergency cannot be too highly praised.
The maneuvering room statements say that the pressure gauges read surface pressure
throughout the casualty. Considering the down angle obtained this is not unlikely.

          3.        Statements of all personnel directly connected with the casualty
are contained in enclosure (A). The Commanding Officer has limited himself in
this report to statements of fact concerning the casualty, and is unwilling at
this point to advance theories concerning its cause. Although a depth of 23 feet
was observed on the depth gauge and reported to conn prior to opening the hatch
it is obvious from the testimony of FRITCHEN, the first lookout, that the actual
keel depth by the time he reached the cigarette deck was about 28 feet.

          4.        Salvage of electrical equipment was begun as soon as salt water

                                         Page - 3 -

— page 190 —
## The Chevelle's Legacy: A Deep Dive into the American Muscle Icon

The year 1964 marked a pivotal moment in American automotive history with the introduction of the Chevrolet Chevelle. Positioned as a mid-size offering, it quickly carved out a niche for itself, bridging the gap between the compact Chevy II and the full-size Impala. While its initial design was somewhat conservative, the Chevelle's true potential as a performance powerhouse would soon be unleashed, cementing its place as one of the most revered muscle cars of all time.

**The Genesis: 1964-1967 (First Generation)**

The first-generation Chevelle, available in a variety of body styles including coupes, sedans, wagons, and convertibles, was built on the new A-body platform. Early models offered a range of inline-six and small-block V8 engines. However, it was the introduction of the **SS (Super Sport)** trim in 1964 that truly hinted at the car's future. Initially, the SS package was largely cosmetic, but by 1965, buyers could opt for a potent 327 cubic inch V8, delivering up to 350 horsepower.

The 1966 redesign brought a more aggressive, "coke bottle" styling, and with it, the legendary **big-block 396 cubic inch V8**. This engine, available in various states of tune, transformed the Chevelle SS into a serious contender on the street and strip. The L

— page 191 —
In reply
refer to:

SS291/

Serial

U. S. S. CREVALLE (SS291)

Statement made by Cedric H. Osborne, PhM1c., U.S. Navy.

At the word surface I was standing in front of the Gyro table waiting
to go on watch at the radar equipment. I glanced at the Xmas tree and there was
a green board at which time the depth of 26 feet was passed to the Conning Tower.
At this time the low pressure blowers were starting. 24 feet was passed to the Conning
Tower, Crack the hatch, Open the hatch, Lookouts to the bridge", and etc; all
being normal orders for a normal surface. It appeared to be a normal surface
with the ship and personnel performing normally.

At this time the ship took a down angle and water started coming
down the hatch into the Control Room. Several people yelled to close the hatch
and the O.O.D. gave the order to close the hatch and all back full, at which
time the Captain entered the Control Room and blew all main ballast; put
all banks on the line and blow safe. The control room continued flooding
until the water, due to the angle which the boat had now attained, covered the
forward water-tight door of the control room, which had previously been closed
by someone in the forward battery, almost to the overhead; the water lever being
up to the armpits.

By some unknown means the conning tower hatch closed and shortly
thereafter the water finished draining from the conning tower into the control
room and consequently on down into the pump room under control room deck.

By this time the boat had again surfaced due to the continuous blowing
of all main ballast and no more difficulty was encountered in remaining on the
surface.

As the Captain had took the conn immediately he had entered the
control room, he ordered several additional lookouts to the bridge in an effort
to locate the two men who had been left topside upon the second submergence.
These two men were Lt. H.J. Blind, U.S.N.R., and Fritchen, W.L., GM3c, USNR.
Fritchen was sighted and when almost alongside Lt(jg) Massone dived over the
side and swam to his aid in getting back to the ship and back aboard. Lt.
Blind, the O.O.D. on the first dive, was never sighted again after he was first
sighted by Lt-Cdr. Ruhe and Ens. Bowie shortly after our second surface. When
the ship reached the approximate spot where he was sighted he was not to be
found. After running in circles in and around the spot where he was lost over
the side for quite a considerable length of time, the Captain gave orders to
steady up on a course and we headed for Darwin. We had to give him up as lost
after having found no trace of him in this length of time.

/s/

Cedric H. Osborne,
PhM1c., U.S. Navy.

— page 192 —
Statement made by Orville B. Hendrix, Y1c., U.S. Navy.

At about 0630 - Friday, 11 September, 1944, I was working in the
ship's office on board the U.S.S. Crevalle during a normal trim dive. The
surfacing alarm sounded and we made a normal surface but immediately upon
reaching the surface and just as I felt the hatch in the conning tower open
I felt the boat starting to take a down angle at the bow and I heard the
Officer-of-the-Deck yell to close the hatch. Just then I heard water start
to coming down the hatch and at the same time I heard the captain yell, "Blow
all main ballast!" He yelled this about three time on his way from either the
wardroom or his stateroom to the control room. When the captain passed the
office I came out and intended closing the water-tight door in the after end
of the forward batter but Enright, G.P., TM3c., had just come through the door
and was closing it so I started giving him a hand when Lt(jg) Massone came up
the passageway, consequently Lt(jg) Massone lost his balance and went sliding down the
passageway. Lt(jg) Massone and myself finished closing the door
and I dogged it down or finished dogging it down when Lt(jg) Massone left the
door and went forward to see that the forward door of the forward battery was
closed. As soon as I had finished dogging the door I tried to close the inboard
ventilation flapper in the after end of the forward battery but due to the angle
on the boat, which was by now about forty to fifty degrees according to my esti-
mation, I could not do so. I later closed the flapper and it worked alright but
was very hard to close.

I looked through the eyesport in the water-tight door in the after end
of the forward battery and I saw the men in the control room standing about waist
deep in water and some of the men had been washed off their feet. The water then
came up over the eyesport and I could not see anything distinctly.

When the door of the after battery was closed at the control room
the water was starting to come into the forward battery and we took about an
inch or an inch and a half on the deck in the forward battery. This salt water
was soaked-up with blankets and other cloth in a very few minutes after it had
come in.

After a period of about two or three minutes the angle started leveling
and we made a surface. The whole action covered a period of approximately five
to ten minutes, estimated.

/s/
Orville B. Hendrix.

— page 193 —
In reply
refer to:

SS291/

Serial
U. S. S. CREVALLE (SS291)

Statement made by G. L. Roraback, TM2c., U.S.N.R.

At 6:15 relieved the wheel watch, normal steering in the Conning
Tower. On command to surface given by Mr. Ruhe, rang the Klaxton 3 blasts,
and rung up s/a standard. Heard voice from Control Room (believed to be Mr.
Bowle) say 26 feet. Conning tower hatch was ordered cracked, which was
carried out, then opened upward. Fritchen opened the hatch and was first
man up, followed directly by Mr. Blinds. No water came down untill Mr. Blinds
feet left the last rung on the ladder. Then water began to rush down the
hatch. Commands were given to close the hatch but water pressure was to
great to grab the lanyard. Took my hands from the wheel to grab the lanyard
but was knocked off balance and was washed with the flow of water down Lower
Conning tower hatch into Control Room. Heard the Captain give orders to
close lower conning tower hatch, this was not carried out as water rushing
down was too great and in few seconds water stopped due to Upper Conning
Tower hatch being then secured. Upon surfacing went on bridge as an after
lookout.

/s/
G. Roraback, TM2c.

— page 194 —
In reply
refer to:

SS291/

Serial
U. S. S. CREVALLE (SS291)

Statement made by Robert Lee Yeager, MoMM1c(T), U.S.N.R.

I was in the after battery. I had just gotten into my bed when
the surface alarm was sounded. Almost as soon as I felt the boat reach the
surface it started to gain a down angle, at the same time someone ran into
the sleeping quarters saying that the central room was flooding. On trying
to get aft the water tight door was closed, the angle still growing larger,
I picked up the hand phone and tried for control or conning tower. I could
not get either one, I asked if any officer was present in any compartment,
I received one answer of no. I asked men, room what speed they were making,
reply all ahead Std., I gave the order for all back full, almost at once the
angle started coming off.

The watertight door was then opened and I proceeded at once to the
man. room, where I told C.E.M. Williams that it had been I who gave the order.
At the time I gave the order I was not able to reach either the
control room or conning tower. I have been aboard the Crevalle since she
was commissioned, and have been assigned as battle stern planesman the
entire period, I have watched the procedures of our officers on gaining
to great of an angle and I felt sure it was the proper thing to do.

/s/
Robert Lee Yeager, MoMM1c(T).

— page 195 —
In reply
refer to:

SS 291/

Serial
U. S. S. CREVALLE (SS291)

Statement made by James L. Larsen, MoM2c., U.S.N.R.

Raised SD mast at 50' - Clear screen so surfaced. Secured MBT blow
approx. 30 feet. - 26 feet was announced before low-pressure blow was started.
23 feet was ann. when L.P. blow was about half started. Blower was fully started &
individual stops were open when water started down hatch - blew all MBT, Bow
Buoy., neg., & safety - Secured 600
lbs out in #1 & #5 bank. Surfaced immediately after they were out in so secured
all air to tanks.

/s/
James L. Larsen, MoM2c.

— page 196 —
In reply
refer to:

SS291/

Serial

U. S. S. CREVALLE (SS291)

Statement made by William L. Fritschen, GM2c., U.S.N.R.

We had just completed a normal trim dive, everything appeared and
sounded normal. Three blasts of the klaxon sounded upon the command given
"Surface" by Mr. Ruhe. I was standing ready at the hatch a voice rang out
from the control room; "27 feet" again the voice rang out with something just as
the low pressure blower was starting to turn over. "Crack the hatch" said
Mr. Ruhe. So I cracked the hatch and bent the handle in the horizontal
position, and got my hand ready to unlatch the hatch. Then the command was
given by Mr. Ruhe, "Open the hatch" Mr. Blind. "Crack the hatch" Mr. Ruhe
the O.O.D. said, "Fritschen you go first", it was regular routine. I nodded my
head in reply. I scrambled up the ladder, sliding at the
rim of the hatch as I got to my feet. I ran to the after part of the periscope
shears, I looked down, the water was up to the rim of the cigarette deck and was
starting to flow over, none of the main deck was visible. I turned as the water
was rising, Mr. Blind had his back toward me, bent over the hatch opening. I
turned as the water rose to my knees, jumping upon the top cable of the rail.
Then the ship took a hell'uva down angle. I climbed up the periscope shears,
looking aft, I saw half of the screw was protruding from the water. Getting to the
top of the shears, I started up the S.D. radar mast. At the top I gave a shove
outward, starting to swim like mad, in a moment the screws were beneath me,
tending to draw me down. The screws passed beneath, and I broke the surface,
I took a deep breath of air and took off my boots. I could see nothing more of
the ship. In about 10 or 15 minutes which seemed like hours, the ship surfaced
even and very high out of the water. I started shouting and waving my hands,
with apparently no success. Then the ship turn directly towards me and I
started swimming towards it. I got to within 50 to 75 feet from the ship about
ready to crap out, I told the men that were on the main deck aft. of the engine
exhaust. I heard someone say "take him in, it you'll be okay" it was Mr. Massone. Then
he towed me to the ship and the men helped me aboard.

/s/
W. L. Fritschen, GM2c.

— page 197 —
In reply
refer to:

SS 291/

Serial
U. S. S. CREVALLE (SS291)

Statement made by Walter J. Elliott, FC(S)1c, U.S. Navy.

Gave control room order to come to 50' feet. I raised the S.D. mast.
At 55 feet had it in the standby condition. Barnes had the watch. Looked
over his shoulder reported to the conning tower all clear. Turned on 7MC
to bridge and walked over by the I.C. board. The vents were in the closed
position. When the surface alarm sounded the diving officer gave the word
to blow H.B.T. & H.P. The word was passed to the conning tower 26' & Larsen
was starting the L.P. Blower at 23' the conning tower hatch opened. Water
started coming down to the C.O.C. Had my back toward the hatch still by
the I.C. board. Was knocked off my feet by Enright & then he started toward
the fwd. Batt. Hatch to close it just as the captain was coming into the
C.O.C. My phones were hung up on something & couldn't make my way aft. so I
took them off & manned the handset as long as I was able to keep my feet.
After we started to get an up angle started securing the I.C. board until
I fell into the bucket brigade.

/s/
Walter J. Elliott, FC(S)1c,

— page 198 —
In reply
refer to:

SS291/
Serial

U. S. S. CREVALLE (SS291)

Statement made by Earl M. Snellings, COM(AA)(T), U.S. Navy.

Made routine trim dive making s/s on one M.B. submerged to 90 ft.
and trimmed boat (Exec. Officer in conning tower, Ensign Bowe acting as
diving officer) planed up to 60 ft. took periscope observation. Planed
up to 50 ft. manned S-D radar.
Surfaced, Helmsman sounded three blasts on the klaxon and rang up
s/s. Blew all Main Ballast with low pressure blower. Exec. Officer
reported depth 25 ft. and started low pressure blower. Exec. Officer gave
the word to crack the C.T. hatch and when the pressure had almost equalized
passed the word to open the hatch. The hatch was opened and one lookout and
Lt. Blind went to the bridge. Everything seemed normal. Just as the second
lookout got halfway up the ladder water started coming down the hatch and the
ship started taking a down angle by the bow. Word was passed to C.O.C. to
blow all Main Ballast with H.P. air. Two lookouts tried to close C.T. hatch
but the force of the water was so great it swept them down into the C.O.C.
The Exec. Officer was trying to close the lower C.T. hatch but this was im-
possible due to the force of the water going down the hatch. This hatch was
finally closed from the C.O.C. by this time the ship was completely submerged
and had an acute down angle. The upper C.T. hatch was still open! A few
seconds after this the upper C.T. hatch closed, the force of the water probably
tripping the latch. During this time all M.B. were being blown with H.P. air
and the controllermen were backing emergency on both screws. The ship finally
came to the surface.
(The procedure used in this (this first) dive and surfacing was
standard and nothing unusual was observed from my station in the C.T.)

/s/
Earl M. Snellings, COM(AA)(T), USN.

— page 199 —
In reply
refer to:

SS291/
Serial                               Statement made by George F. Enright, TM3c., U.S. Navy.

                                                               U. S. S. CREVALLE (SS291)

          I was on the Bow Planes. The bow planes were rigged in when
the diving officer passed the word "26 ft." A few seconds later water
started down the control room hatch. I looked at the Xmas. tree and saw
a green board. When water continued coming down I tried to grab the
lanyard on the hatch and close it. One of the lookouts was knocked down the
hatch; hit me & we both went over to the I.C. board. I got up & went into
the fwd. Batt. and dogged the hatch.

                                                               /s/
                                                               George F. Enright, TM3c., USN.

— page 200 —
In reply
refer to:

SS 291/
Serial

U. S. S. CREVALLE (SS291)

Statement made by Harold R. Culley, GM3c, U.S.N.R.

Report on accident on the 11 of Sept 1944 as near as I can
remember. We went down on a normal trim dive at 6:10 a.m. We got
our trim and started coming up. We came up to 60 ft. and took a sweep
with the periscope, we then went to 45 ft. We then got the word with the
high pressure, we then got to surface. We then got the word that we were
at 27 ft. then we heard them say 25 ft. and we got the word to crack the
hatch. We cracked the hatch and waited for the word to open the hatch.
When we got the word, they had started the 10 lb. blow. We surfaced
normally and the Quartermaster of the deck opened the hatch and went up
first with the Officer of the deck going up next. I followed the Officer
of the deck, and we had to wait a few seconds because the first man slipped
on the ladder. When I started up, water started coming down and we took an
awful down angle. I was washed down the hatch when I heard the word to blow
with the high pressure. I saw a man trying to close the hatch when the water
went over my head. When I could see again Mr. Ruhe was holding the hatch
closed. There was no one on the wheel so I went over and took the wheel,
by that time we had started up again. When we were on the surface again they
were a few officers & lookouts that went right up to the bridge. The captain had the
wheel so I went over and took the wheel. When I got relieved which
was two or three minutes I went right up to the bridge. The captain had the
20 mm gun crews on station and 7 or 8 men in the water. All I could see was one man
in the water. Our rudder had jammed and we were backing down in a circle.
They got the rudder loose and we picked up the man in the water. We then
circled for three or four hours, we were bailing water all the time from the
pump & control room. We never did see the officer.

/s/
Harold R. Culley, GM3c, USNR.

— page 201 —
In reply
refer to:

SS291/

Serial

U. S. S. CREVALLE (SS291)

Statement made by Albert J. Jenigen, F1c., U.S.N.R.

We dove at 06:05. When I took the stern planes everything was
in normal condition. Just before we surfaced Tompson, F1c., took over the
planes. When we got the surfacing alarm Tompson gave her 3° rise bubble
and when we got about 25 feet he then gave the planes 15° dive. I then
rang up after room so as they could pull the lanard up to lock planes.
Tompson then started cranking the planes back to 3° dive. We were then
on surface. All of a sudden the boat took an awful down angle the central
started to flood. I grabbed the planes put hard rise on them which didn't
do any good. I lost control of planes and they went into hard dive. I
couldn't do anymore with them, so I gave a hand in rigging the wheel into
hand power.

/s/
Albert J. Jenigen, F1c., USNR.

— page 202 —
In reply
refer to:

U. S. S. CHEVALLE (SS291)

SS291/

Serial
Statement made by Charles F. Hildebrand, EM2c(T), U.S.N.R.

Starboard Controllerman:

On September 11, 1944, we made a routine dive. The diving
alarm sounded at 0607. On the diving alarm standard speed was rung
up on the annunciators. Answered bells as usual on dive. Received
orders to put two N.S. on prop. We were making 2/3 speed when the
surface alarm sounded. Standard speed was rung up then. It seemed
to be a normal surfacing. Then the boat took a sudden down angle.
We were still making standard speed when we noticed the shaft rev-
olution indicator & annunciators go out of commission. We reported
it immediately and told them to pass the bells over the phone. We
continued on a down angle for a few minutes and then received orders
for all back full. The pressure gauge showed surface pressure all
the time we had the down angle.

/s/

Charles F. Hildebrand, EM2c(T), USNR.

— page 203 —
In reply
refer to:

SS291/

Serial

Port Controllerman:
"On Sept. 11, 1944 at 0607 we made a routine trim dive, before
surfacing we received orders over the TME to put two main engines on
propulsion. We were making 2/3 speed submerged and as the surfacing
alarm sounded received orders for standard speed. The boat made a
normal surface then started taking a down angle, we noticed the shaft
revolution indicators go out and also the annunciators, we reported
they were out and to pass all bells over the phones. We continued
on Standard speed for a few minutes then received the word all back
full and started backing full for several minutes. The sea pressure
gauge showed surface pressure all the time that we had the down angle."

/s/
George F. Williams, CEM(AA)(T), USN. U. S. S. CREVALLE (SS291)

Statement made by George F. Williams, CEM(AA)(T), U.S. Navy.

— page 204 —
In reply
refer to:

SS291/
Serial
U. S. S. CHEVALLE (SS291)

Statement made by James H. Howard, CTM(AA), U.S. Navy.

I was on the hyd. manifold. When we came to 50' the SD mast was
raised & a sweep was taken. The order surface & surface alarm went & I
closed the vents & saw the board turn green when the air manifold man started
blowing all ballast & bow buoyancy. We came up smartly & I noticed 25' on
the depth gauge & I had my hand on neg. flood to reflood neg. tank as soon
as the bow blow got up to speed. A swell & a second later water started pouring
down the hatch. I thought it was a swell coming over the bridge at first &
the water continued down. I yelled blow
the boat took a steep down angle & the water continued down. I yelled blow
all ballast and glanced at the board just as the lights blinked off. I tried
to get to the lower hatch but was washed away. The captain came in there & I
think I heard him say blow all ballast, blow "safety". About this time the
water stopped and I saw we were coming up past 70 ft. and then surfaced. The
hydraulic was stopped but there was still enough pressure to open the main
induction which I did on orders. I had a man check all indicators on the vents
& they all indicated shut (after we were on the surface the 2nd time).

/s/
James H. Howard, CTM(AA).

— page 205 —
In reply
refer to:
SS291/
Serial
U. S. S. CREVALLE (SS291)
Statement made by Ensign R. E. Bose, U.S. Navy.

Normal trim dive at about 0610 - Monday, 11 September. Dove the boat nor-
mally - depth 90 ft. 8° down angle ordered. An angle of 10° was obtained and the
boat was heavy so went to 110 ft.
Came to 90 ft. slight (1°) up angle, 2/3 speed slowed to 1/3, pumped 2500
pounds (approx) from aux to sea, vents were left open on dive. Having obtained nearly
correct trim by pumping 2500 lbs out of aux came to 60 ft. on orders from O.O.D.
2/3 speed and 14° up bubble. All clear on periscope, O.O.D. ordered 50 feet, raise
radar mast (S.D.). Planed up to 50 feet at 1/3 speed using 1° rise bubble, leveled
at 50 ft. (14° down bubble) to maintain depth at 50 ft. Vents shut. Exec ordered surface, Noted
green lights on Christmas tree (indicating vents) ordered "Blow all main ballast, the
blow has buoyancy."
While at 50 feet had instructed bowplanesman, Enright (TM2c) to put a little
rise on the bow planes in order to surface to help bow buoyancy take the 14° down
bubble off the boat. He did so, and as a slight 1°-2° up angle came on boat, put
planes on zero and rigged them in. At sixty feet a new man took over stern planes,
McHugh, while an experienced planesman stood watch over him JENNIGEN. Boat seemed
to surface normally, a little slow at first, due to (I thought) standard speed by
rung up while boat had slight down angle (to held her at S.D. depth, fifty feet).
As we passed 40 feet & were coming up nicely I ordered "Secure the air to main
ballast" which was done, then I called out "26 feet" to the conning tower. I had
previously told the auxiliaryman to start the low pressure blow as soon as he had
secured the HP air, which he did. Then with shallow depth gauge over bow planes
reading less than 25 feet, zero angle on boat, bow planes being rigged in & stern
planes taking off rise from surfacing & negative still holding only 4000 lbs (was
not flooded), upper conning tower hatch open I went up ladder to conning tower.
Had heard the O.O.D. and some one else (QM) go up the hatch, & went to raise
scope to take a periscope sweep before taking my station as lookout on after cigarette
deck. Had just reached for button to close upper hatch & ship a rush of water -
began to take down Nienowyk. Rushed to close upper hatch & was knocked aside by a rush
of water carrying Nienowyk to Control Room. This carried C.T. canvas deck cover
over lower hatch & diverted water which [HANDWRITTEN: threw] me against T.D.C. Saw Mr. Ruhe
struggling in stream of water to close upper hatch. Large bubbles of air coming
& rushes of water going down, with C.T. canvas decking twisted in hatch prevented [UNCLEAR: all]
Word was yelled by Mr. Ruhe & myself "Blow all main ballast & keep blowing" & "All
back full". Angle kept getting larger & this plus force of water, kept all hands
G.T. practically incapacitated. When I heard H.P. going I noticed our depth on C.T.
gauge 160 ft. Shortly thereafter we broke surface, & saw two men in the
water - one with shoulders showing & barley a head & some white on the other. We
started rising very rapidly. As we broke surface, we could get word to maneuvering to give us ahead
backing emergency & by the time we were approx 1/2 mile away from the men. The
standard we were approx 1/2 mile away from the men. The captain came up, took the
conn & maneuvered directly for one figure - the only one seen. As we neared,
Massone dove overboard & carried the man - they were taken aboard near the stern on
the port side with the aid of a life preserver. I participated in this & when I
returned & asked Nienowyk, a lookout,

Page one of two.

— page 206 —
In reply
refer to:

U. S. S. CREVALLE (SS291)

SS291/
Serial                               Statement made by Ensign Richard E. Bowe, U.S. Navy. (Continued)

where the other man was, he replied, "he disappeared, I can't find him". The men
were fairly close together (100 yards or so) when first sighted on surfacing but
the O.O.D. was no where to be seen though we should have picked him up first in
our line of approach.

/s/
R. E. BOWE,
Ensign.

Page two of two.

— page 207 —
Statement made by Lieutenant Commander William J. Rube, U.S. Navy.

In reply
refer to:
SS 291/
Serial

A trim was gotten under the order "60 feet". The boat
had been reported in satisfactory trim at 1/3 speed at 90 feet.
At 60 feet I took two fast sweeps around the sky in low power and one
very slow careful sweep around the horizon on high power. I then ordered "look-
outs to the conning tower" and "control, when we surface blow up for ten minutes".
(This was acknowledged by control over the 7MC and by the two main engines on propulsion". (This was acknowledged by control over
the 7MC).

I then ordered "30 feet" and shortly thereafter ordered "raise the SD mast
and take a sweep".
Up to this time there seemed to be nothing wrong with the performance of
the ship or the personnel.
When control reported over the 7MC "SD radar screen all clear" I asked Lt.
Blind who was standing just below the hatch "are you all set to surface"? He answered
in affirmative. I visually checked for three lookouts below the hatch and Lt. Blind.
All were at their stations.
Fritchen, W.L., GM2c, was standing under the hatch with his hand on the
wheel ready to open the hatch on my order.
I completed one more slow sweep of the horizon. During this sweep word was
passed from the captain over the phone from the control room to the conning
tower over the 7MC.
At completion of the sweep I ordered surface. Three blasts of the diving
alarm was rung up, and blowing of tanks was heard. The Sub surfaced
normally with a small up angle and when the depth gauge in the conning tower had
stopped at 29 feet (this is normal for the conning tower gauge since it stops when
the sea connection is out of water). I yelled down the hatch "what's your depth"?.
Ensign Bowe replied from the control room "twenty six feet" followed immediately by "twenty
five feet". At this point I ordered "crack the hatch" and I noted the pressure on the
pressure gauge drop slowly. During the process the low pressure blower was started.
When the air pressure had been bled down to about two tenths of an inch, I ordered "open"
the hatch". I noted that there was no sign of water coming through the hatch and
up above the hatch it was dry.
Fritchen was the first man through the hatch and followed by Lt. Blind,
followed by a lookout. Just as this man started up the ladder a solid stream of water
poured through the hatch. I yelled "shut the hatch" and started for the hatch myself,
from the after side of the control room hatch. I grabbed for the hatch to get it shut but
it was jammed so with my head just as I tugged at it, a body crashed against me,
knocked me back into the after side of the control room. I pushed again but did not
catch on this hatch to get it shut because of the stream of water. I pushed across the
room just as the hatch closed with a sudden bang. At this instant I looked at the deep
depth gauge above the helm and noted "all ballast" several times. Very shortly after the hatch closed I could hear the
ballast tanks blowing. I noted the deep depth gauge and was surprised to note that we
were descending only very slowly past 150 feet despite the sharp down angle I noted.
I believe 190 feet was the deepest the depth gauge registered before we started up.

Page one of two.

— page 208 —
In reply
refer to:

SS 291/
Serial

U. S. S. CREVALLE (SS291)

Statement made by Lieutenant Commander William J. Ruhe, U.S. Navy. (Cont'd).

When I noted the depth gauge in the conning tower had but the steps at
29 feet I moved under the upper hatch, standing by to open it. The command from
the captain came "open the hatch". I pushed in the catch and noted it was jammed.
After several frantic pounds on the catch the hatch flew open and I went topside.
As I emerged I noted one head in the water on the starboard beam about 75 yards off.
I looked for others and noted a man wildly waving his arms dead ahead in the wake
of the ship, about 100 yards away. I noted the ship was backing rapidly so ordered
to the conning tower "all ahead standard". The captain was coming on the bridge at this
instant and also ordered "all ahead standard". He asked "why are we backing
up?" and I said "I don't know because I've just ordered standard, and never did order
them to back". I then assumed our backward motion was due to the rapid surfacing
with a sharp up angle by the stern. Ensign Rowe had indicated he had both the men
in sight as he arrived after me. I immediately went below to unscramble the orders
to the motors and to the helm, the captain taking over.

/s/
William J. Ruhe.

— page 209 —
[STAMP: PROCESSED COPY]

SS291/A7
Serial: 00058
[STAMP: T-O-P S-E-C-R-E-T]
[STAMP: DECLASSIFIED]

U.S.S. CREVALLE (SS291),
C/o Fleet Post Office,
San Francisco, Calif.,
3 May 1945.

From: Commanding Officer, U.S.S. CREVALLE (SS291).
To : Commander-in-Chief, United States Fleet.

Subject: U.S.S. CREVALLE, Top Secret Report of Firing Mark
27 Torpedoes, Patrol No. Six.

Enclosure: (A) Subject Report.
[STAMP: CONFIDENTIAL - OPNAV INST 5500.30]
[HANDWRITTEN: BY H Kien DATE 4-14-60]
1. Enclosure (A) is forwarded herewith

[SIGNATURE: E.H. Steinmetz]
E.H. STEINMETZ.

5 1220

— page 213 —
SAFETY FILM KODAK 00

T-O-P S-E-C-R-E-T

Subject: U.S.S. CREVALLE (SS291) - Report of Sixth War Patrol.

— page 217 —
[HANDWRITTEN: Am 180-P-450]
[HANDWRITTEN: 5a 1220]
[HANDWRITTEN: 2K.]

FF12-10(A)/A16-3
Serial 00037

[STAMP: TOP SECRET]

FIRST ENDORSEMENT to
CO USS CREVALLE Top Secret
ltr. SS291/A7 serial 00058
dated 3 May 1945.

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

Subject: U.S.S. CREVALLE (SS291) - Top Secret Report of Firing Mark 27
Torpedoes, War Patrol No. 6.

1. Forwarded.

2. It is believed there is sufficient evidence to assess sinking in
first attack. The second attack gave definite results. The poor sound conditions
and the unfavorable distance off target's track caused third attack to be
unsuccessful.

3. The Commander Submarine Force, Pacific Fleet, congratulates the
commanding officer, officers, and crew of the CREVALLE for these successful attacks
using this new weapon. CREVALLE also performed a mine detection special mission
during this patrol. Damage to the enemy caused by this weapon has been assessed
on Force Commander's endorsement to war patrol report.

MERRILL COMSTOCK.

DISTRIBUTION:
Cominch (2)
CNO (2)
Cincpac (3)
Comsubspac (2)
ComsubspacAdComd (2)
ComsubsTrainpac (2)
Comsubs7thFleet (2)
Comsubslant (2)
All Squadron Commanders (1)
All Division Commanders (1)
BuOrd (2)
BuShips (2)
CO USS CREVALLE (1 copy
this endorsement only)
[SIGNATURE: E. L. Hynes]
E. L. HYNES, 2nd,
Flag Secretary.

SUBMARINE FORCE, PACIFIC FLEET
ADMINISTRATION

Care of Fleet Post Office,
San Francisco, California.
12 May 1945.

[STAMP: COMMANDER-IN-CHIEF
FLAG OFFICE
RECEIVED
1945 MAY 16]

[STAMP: SECRET]
[HANDWRITTEN: 5 1220]

— page 219 —
SS291/QC
Serial: 0056
T-O-P S-E-C-R-E-T
Subject: Special Mission, CREVALLE Sixth War Patrol - Report of.

— page 220 —
```
SS291/WC
Serial: 00056
T-O-P S-E-C-R-E-T
Subject; Special Mission, CHAVALLE Sixth War Patrol - Report of.

— page 221 —
SS291/QC
Serial: 00056
T-O-P S-E-C-R-E-T
Subject: Special Mission, CHEVALLE Sixth War Patrol - Report of.

— page 222 —
T-O-P S-E-C-R-E-T                               U.S.S. CREVALLE (SS291)

ENCLOSURE (B)                                   C/o Fleet Post Office,
                                                San Francisco, Calif.,
                                                27 April 1945.

From: Commanding Officer.
To : Commander Submarines, Pacific Fleet.

Report of Operations on 21 April 1945.

0445 (I) Submerged 15,000 yds ahead of two radar contacts. Lat. 33°-30' N.
         Long. 129°-12' E. at submerging. Commenced an approach on targets
         which appeared to be remaining in approximate the same location for
         a period of 8 hours. Range decreased to 7,600 yds when DE turned away
         and came to course 098°T. We followed. Other target could not be seen
         but was 3,000 yds astern DE at diving. Surface haze and morning
         twilight cut down visibility. On 20 April we had observed a DE and CM
         cutting through SHIRA TAKE SETO proceeding at high speed. We were
         unable to close sufficiently for firing. The thought occurred that
         these might be the same two vessels. Actions could not be determined.
         Staying in one spot looked suspicious since all traffic was proceeding
         in close to the western side of IKITSUKI SHIMA thence through SHIRMA
         TAKE SETO that a likely spot for a anti-submarine mine field would be
         west of IKITSUKI SHIMA. This would guarantee a protected passage to
         SASEBO. Granted that our submarines had been in these waters recently
         and we had ourselves. However the shipping routes through the East
         China Sea have taken a drastic remodeling due to the Japs hugging the
         coast at every possible opportunity. Also we had re-layer within four
         miles of our 21 April diving position on 19 April 1945. The puzzling
         feature about this attack was the slow speed of the target, considering
         available speed. Identification was not positive but the ship strongly
         resembled a DE hence decision was made to man the Fox Mike Sonar while
         proceeding in toward IKITSUKI SHIMA.

0600 (I) Fox Mike Sonar was manned.

0645 (I) Possible contact. Immediately went to 100 ft. We had lost one set of
         bow plane cable guards due to snapping of shackles. No guards were
         rigged, so rigged in bow planes.

0650 (I) Began to get positive contacts good clear bell tone with blob. In
         between these good tones appeared poor ones. Gradually worked around to
         the northwestward. Started plotting contacts. Immediately the good
         contacts appeared to show up at about two hundred yard intervals.

0900 (I) Contacts came thick and fast, close together so that it was impossible
         to fishtail between them. Tones were poorer.

0930 (I) Ran out of this mess. Contacts not reestablished. At this time we were
         on 270°T and stayed there to draw breath and evaluate contacts. Screws
         on QB and JP were heard at 0724 (I) bearing 090° relative, and persisted
         until about 0900 (I). This did not help morale any. I wanted
         desperately to look but didn't dare come up above 100 ft. The screws

- 1 -
[STAMP: COPY]

— page 223 —
T-O-P S-E-C-R-E-T
ENCLOSURE (B) [HANDWRITTEN: I]

U.S.S. CHEVALLE (SS291)
C/o Fleet Post Office,
San Francisco, Calif.,
27 April 1945.

Report of Operations on 21 April 1945 (Cont'd).

remained on approximately the same true bearing. No echo ranging
was heard after morning targets were beyond 12,000 yd generated range
and their screws could not be heard. Enclosure (C) shows graphicplot
of all contacts, 78 in number. We first gained contact while on course
098°T at Lat. 33°-28' N. Long. 129°-18' E. At Lat. 33°-28' N.
Long. 129°-18.5' E. we were on course 000°T working gradually westward.
Track shows contacts on true bearing 320°T (approximately). Contacts
From 0900 (I), the contacts are believed to be fish. No triplane
ranges were obtained, as it was not our intention to penetrate
a mine field this date. Ranged on good clear contacts averaged 300 ft,
maximum range attained only two or three times was 200 yds. Initial
ranges on the poor tone contacts were averaging about 250 ft and less.
Sea condition was force one. Dispatch report made on night of 21 and
22 April of results attained. Also received orders to sweep another
area the same night.

E.H. STEINMETZ.

[STAMP: COPY]

— page 224 —
[HANDWRITTEN: 2]
SS291/
A16-3

Serial: 0091

S-E-C-R-E-T

From : Commanding Officer, U.S.S. CHEVALLE (SS291).
To : Commander Submarine Force Pacific Fleet, Administrative Command.

Subject: Entry and Exit Japan Sea during U.S.S. CHEVALLE's Seventh
War Patrol, Report of:

Reference: (a) Comsubpacadecmd secret dispatch 032323 of July 1945.

Enclosure: (A) Subject Report.
(B) Track Chart of Entry.
(C) Track Chart of Exit.

1. In accordance with reference (a), Enclosure (A), (B) and (C)
are submitted herewith.

E.H. STEINMETZ.

U.S.S. CHEVALLE (SS291),

c/o Fleet Post Office,
San Francisco, Calif.,
5 July 1945

[STAMP: CONFIDENTIAL - OPNAV INST 5500.1]
[HANDWRITTEN: BY JGK DATE 10-9-60]

[STAMP: CONFIDENTIAL]

[HANDWRITTEN (vertical along right margin): ComSubPac File #3-5606 RS #867 FILE A16-3 JACKET #B4]

— page 225 —
S-E-C-R-E-T
Subject: U.S.S. CHEVALIER (SS291) - Report of Seventh War Patrol.

In view of requirements that positions be recorded in patrol reports,
no attempt was made to eliminate the tracks used to and from area.
The interpretation given to this command was construed to
mean the manner in which entry and exit were effected and not the
elimination of the passages.
Hence certain pages of the patrol report were deleted. These were
amplified and follow:

3 June 1945

0412(I) SEADOG submerged.

0418(I) After pulling clear of SEADOG's track, submerged.

1200(I) Lat. 33°-07' N. Long. 128°-16' E.

1314(I) Sighted two planes 245° T, range, about 6 miles. Looked like
PRIVATEERS.

1647(I) Fired F.T.S. and followed it out to 500 yds on Fox Mike. Guess
we are ready.

2021(I) Surfaced.

2222(I) Three (3) distant explosions.

2245(I) SJ Contact 235° T, 7200 yds. Radar interference.
Attempted to challenge - no answer.

2308(I) SJ Contact 290° T, 5300 yds. Radar interference.
Attempted to challenge - no answer.
Contacts were other members of HEPCATS.
Track showed us all heading for designated rendezvous. Moved
over to assigned position in formation.

4 June 1945

0003(I) At rendezvous. No word from SEADOG, so assumed no changes were
contemplated. Manned Fox Mike, set course 035° T, speed 5 kts.
Started transit of NISHI SUIDO.

0057(I) SHIPCON #1 Lat. 34°-11' N. Long. 128°-40' E. SJ Radar contact
(2 pips) 16,000 yds, 300° T. Plot showed they would clear us.
Looked like the usual A/S patrol encountered nightly during last
run.

0206(I) SJ contact 280° T, range 9000 yds. Strong APR contact at 150 mgs.
Contact was definitely a plane.

0210(I) Range now 6000 yds and plane heading in, submerged.

- 1 -

— page 228 —
S-E-C-R-E-T
Subject: U.S.S. CREVALLE (SS291) - Report of Seventh War Patrol.

Our planes undoubtedly have discouraged the daylight patrols of this
area. The explosions heard this time were far louder and closer than
those experienced during the last patrol when a sonar sweep of this
area was made. However, these also could have been coincidence or our own
planes again.
The ships encountered just when we wanted to surface quite
likely could have been nothing more than the normal night shipping
across from KOREA to JAPAN. It looked bad for awhile, but upon
surfacing we were not immediately hounded as if there was a
deliberate search in progress.
In retrospect I'm inclined to lean toward the optimistic
viewpoint and will go out on a limb and state that CREVALLE
succeeded in entering JAPAN SEA undetected.

5 June 1945
0409(I) Submerged.
1200(I) Lat. 36°-15' N. Long. 131°-00' E.
2040(I) Surfaced.

23 June 1945
0310(I) Submerged.
1200(I) Lat. 46°-32' N. Long. 140°-02' E.
1902(I) Surfaced.
1925(I) Sighted SPADEFISH. Exchanged recognition signals.
2035(I) SJ Contact 8140 yds, bearing 275°T. Turned out to be SEADOG.
Fell in astern of SEADOG near rendezvous. SEADOG ordered plan
SONAR YOKE. SPADEFISH departed to join Pack 22.
2318(I) Now have SEADOG and Pack 22 on radar screen. All boats started
forming up in pea soup fog.

24 June 1945
0301(I) Submerged in designated spot for sortie plan.
1200(I) Lat. 46°-27' N. Long. 140°-27' E.
1946(I) Surfaced. Spent the next hour sniffing around in moderate to
dense fog. By use of SCR, we finally all found out who was who
and where. Then commenced forming column, other of ships:
SEADOG, CREVALLE, TUNNY, and SKATE.

- 4 -

— page 231 —
END OF REEL
JOB NO. [HANDWRITTEN: AR-52-81]
[HANDWRITTEN: E-108]

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

|||| 4.5 |||| 2.8 |||| 2.5
|||| 5.0 |||| 3.2 |||| 2.2
|||| 5.6 |||| 3.6 |||| 2.0
|||| 6.3 |||| 4.0 |||| 1.8

|||| 1.4 |||| 1.6

THIS MICROFILM IS
THE PROPERTY OF
THE UNITED STATES
GOVERNMENT

[SEAL: Eagle with text "DEPARTMENT OF DEFENSE" and "UNITED STATES OF AMERICA"]

MICROFILMED BY
NPPSO-NAVAL DISTRICT WASHINGTON
MICROFILM SECTION