U.S.S. CABEZON (SS-334) — war patrol report SS-334_CABEZON.pdf

— page 1 —
START OF REEL
JOB NO. [HANDWRITTEN: G-108-AR-117-75]
[HANDWRITTEN: R#1]

1.0
1.1
1.25

2.8
2.5
2.2
2.0
1.8
1.6
1.4

OPERATOR [HANDWRITTEN: Stevens]

DATE [HANDWRITTEN: 3-3-75]

THIS MICROFILM IS
THE PROPERTY OF
THE UNITED STATES
GOVERNMENT

[IMAGE: Department of Defense Seal]

MICROFILMED BY
NPPSO-NAVAL DISTRICT WASHINGTON
MICROFILM SECTION

REEL TARGET, START & END
NAVEXOS 3968

— page 2 —
U.S.S. CABEZON (SS334)
                                                                                                [HANDWRITTEN: 2nd copy]
SS334/A16/A9                                                                    U.S.S. CABEZON (SS334),
Serial: 040-45                                                                  c/o Fleet Post Office,
DECLASSIFIED-A-L                                                                San Francisco, Calif.,
                                                                                11 July, 1945.

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

Subject:                U.S.S. CABEZON (SS334) - Report of War Patrol
                        Number ONE. (Narrative Of Operations Of Task
                        Group 17.15 Included).

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

                        1.
                        Enclosures (A) and (B), covering the FIRST war patrol
of this vessel conducted in the Kurile Island Area, during the period
25 May, 1945 to 11 July, 1945, is forwarded herewith.

                                                                                [HANDWRITTEN: 9/11 out 1/2]
                                                                                G.W. LAUTRUP JR.

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

                                                                                                [HANDWRITTEN: 90]
                                                                                                [HANDWRITTEN: 2]

— page 3 —
C-O-N-F-I-D-E-N-T-I-A-L

A. PROLOGUE

CABEZON was built at the Electric Boat Company, Groton, Conn., and
placed in commission at the U.S. Submarine Base, New London, Conn. on 30
December, 1944. After the normal thirty day training period and the completion
of all contract trials, she departed on 19 February for Key West, Florida,
arriving there on 25 February. Three weeks were spent in Key West furnishing
services to the Fleet Sound School, after which she departed for the Panama
Area. After eight days of training and voyage repairs in that area under
Commander Submarine Squadron THREE, during which twenty-six torpedoes were
fired, CABEZON departed for Pearl Harbor on 29 March, arriving there on 15
April. The usual twelve days training was received there, as well as the
following equipment: TDM, new QB sound head, stream line done for QB sound
head, APR-1, APR-5, AJC directional antenna, and Loran. Departed Pearl Harbor
on 25 May on first war patrol.

B. NARRATIVE

25 May

1400(VW) Departed Pearl Harbor, T.H. in company with USS DACE enroute
Midway, T.H.

OFFICERS PREVIOUS WAR PATROLS
Commander G.W. LAUTRUP JR., USN 9
Lieutenant C.P. TRUMBULL, USN 5
Lieutenant W.K. BAUER, USNR 4
Lieutenant J.W. AHERN, USNR 2
Lieutenant (jg) G.E. BROOKS, USNR 0
Lieutenant (jg) L. "U" JANETQ, USNR 0
Lieutenant (jg) B.B. SMYTH, USN 0
Ensign T.F. BROPHY, USNR 0
Ensign J.M. SULLENGER, USN 10

CPO's PREVIOUS WAR PATROLS
TAYLOR, John (n), 371 64 26, CSM, USN 5
IRWIN, Wm "L", 25584 30, CMOMM, USN 0
SCHOONMAKER, Daniel M., 223 34 94, CMOMM, USN 8
HAYES, Louis I., 375 86 47, CPhM, USN 3
de BIT, Dion G.B., 266 15 14, CRM, USN 9
MC MASTERS, James A., 223 67 05, CY, USN 3
BORN, James R., 375 72 36, CEM, USN 3
CRISSINGER, Daniel P., 311 44 63, CEM, USN 3

25 to 29 May

Enroute Midway conducting training dives, submerged approaches,
radar tracking, gun firing, and WOLF PACK procedure drills.

(1)
[HANDWRITTEN: 90]
[HANDWRITTEN: 3]

— page 4 —
C-O-N-F-I-D-E-N-T-I-A-L
B. NARRATIVE (CONT'D)

26 May
1200(W) Position: Lat. 24-55.0 N, Long. 161-31.0 W.

27 May
1200(W) Position: Lat. 26-44.0 N, Long. 166-55.5 W

28 May
1200(W) Position: Lat. 28-37.5N, Long. 172-39.0 W.
Received notice that we would be joined on station by POGON and
MANTA.

29 May
0900 (W) Arrived Midway, T.H.
0915(L) Changed zone description to + 12. Drew up supplementary patrol
and communication instructions and issued them to units of
TASK GROUP 17.15.
Post voyage repairs consisted mainly of renewing magnetic clutch
in TDM which insisted on burning up continually.

30 May to 7 June
Enroute Midway, T.H. to area conducting training dives, surface
and submerged approaches, radar tracking drills, battle stations
surface, and gun firing daily as weather permitted. Held one
hour NOPACO drills daily.

30 May
0800(X) Departed Midway in company with DACE.
0830(X) Changed zone description to + 14.
0820(+14) Made trim dive.
0827(+14) Surfaced.
1200(+14) Position: Lat. 28-06.0 N, Long. 178-25.0 W.
1500(+14) Laid test smoke screen by injecting fuel oil into exhausts of
# 3 and # 4 main engines through fittings received at Midway.
Screen dissipates too rapidly.

(2)
[HANDWRITTEN: 90]
[HANDWRITTEN: 4]

— page 5 —
C-O-N-F-I-D-E-N-T-I-A-L
B.                               NARRATIVE (CONT'D)

30 May
2028(/14)          Crossed International Date Line.
2400(/14)          Changed zone description to -10.

                   Unless otherwise noted all times will be KLG time.

1 Jun
0235               Made trim dive.
0251               Surfaced.
1035               Sighted floating contact type mine in position Lat. 29-37.3N,
                   Long. 176-49.0 E. Manned after 40 MM gun, one 50 Cal. machine
                   gun and one tommy gun. Sank mine with 50 Cal. and tommy gun fire.
                   40 MM, although accurate is ineffective on so small a target.
1200               Position: Lat. 29-41.0 N, Long. 176-36.0 E.

2 June
0252               Made trim dive.
0306               Surfaced.
1200               Position: Lat. 31-01.0 N, Long. 172-01.7 E.

3 June
0312               Made trim dive.
0329               Surfaced.
1200               Position: Lat. 33-39.0 N, Long. 167-47.0 E.

4 June
0311               Made trim dive.
0334               Surfaced.
1200               Position: Lat. 36-11.5N, Long. 163-25.5 E.

                                   (3)
                                                                 [HANDWRITTEN: 90]
                                                                 [HANDWRITTEN: 5]

— page 6 —
C-O-N-F-I-D-E-N-T-I-A-L
B. NARRATIVE (CONT'D)

5 June
0308 Made trim dive.
0333 Surfaced.
1000 Submerged to routine torpedoes.
1200 Position: Lat. 38-28.5 N, Long. 158-48.5 E.
1515 Surfaced.

6 June
0320 Made trim dive.
0352 Surfaced.
1045 Sighted floating contact type mine in position Lat. 40-35.0 N,
Long. 154-20.5 E. Exploded mine with 50 Cal. machine gun fire.
1200 Position: Lat. 40-46.5 N, Long. 153-45.5 E.

7 June
0330 Made trim dive.
0347 Surfaced.
0800 Entered area.
1000 Submerged.
1200 Position: Lat. 43-22.0 N, Long. 149-18.0 E.
1338 Surfaced for sun line.
1348 Submerged.
1900 Surfaced.
2330 Radar contact on ETORORU SHIMA, range 40 miles.
2345 Water highly phosphorescent for distance of 15 miles.

8 June
0330 Submerged.
1200 Position: Lat. 44-30.0 N, Long. 147-25.0 E.
2045 Surfaced.

[HANDWRITTEN: 90]
[HANDWRITTEN: 6]
(4)

— page 7 —
C-O-N-F-I-D-E-N-T-I-A-L

B.                               NARRATIVE (CONT'D)

9 June
0340         Submerged.
1200         Position: Lat. 44-20.0 N. Long. 147-17.0 E.
2000         Surfaced. Proceeding toward ETOROFU KAIKYO.

10 June
0230         Commenced transit of ETOROFU KAIKYO.
0305         APR-1 contact on starboard side. Frequency 152 MCS, Pulse Rate,
             500; Pulse Width, 10. Swing ship to determine direction of contact.
             Appears to be located on southwest tip of URUPPO TO.
0330         Transmitted WOPACO Serial No. 1 to DACE instructing her to take
             position on new patrol line.
0340         Made trim dive.
0407         Surfaced.
0530         Completed transit of ETOROFU KAIKYO.
1200         Position: Lat. 47-07.0 N. Long. 149-49.0 E.
1453         Received APOGON'S wopaco Serial No. 1 giving her position.
2330         Transmitted WOPACO Serial No. 2 to DACE directing her to return to
             scheduled patrol area.
2345         Enroute KITA URUPPU SUIDO.
2350         Received APOGON'S WOPACO Serial No. 2.

11 June
0545         Submerged.
1200         Position: Lat. 47-06.0 N. Long. 150-14.0 E.
1415         Surfaced for radar fix.
1426         Submerged.
2015         Surfaced. Commenced transit of KITA URUPPU SUIDO.

                                     (5)
                                                                 [HANDWRITTEN: 90]
                                                                 [HANDWRITTEN: 7]

— page 8 —
C-O-N-F-I-D-E-N-T-I-A-L
B. NARRATIVE (CONT'D)

12 June
0100 Completed transit of KITA URUPPO SUIDO. Experienced a current of
     1.3 knots setting 045°T.
0325 Submerged.
1200 Position: Lat. 46-29.5 N. Long 151-23.5 E.
2017 Surfaced.

13 June
0320 Submerged.
1200 Position: Lat. 46-32.0 N. Long. 151-35.0 E.
2005 Surfaced.
2040 Transmitted WOPACO Serial No. 3 to DACE.
2350 Transmitted WOPACO Serial No. 4 to MANTA assigning her new patrol
     station.

14 June
0025 Received WOPACO Serial No. 1 from MANTA giving her position.
0325 Submerged.
1200 Position: Lat. 46-35.0 N. Long 151-33.5 E.
2010 Surfaced.
2305 SJ radar contact believed to be aircraft, distance six (6) miles,
     bearing 090°T. Pip remained on PPI scope for two (2) sweeps and
     was not seen again. Keyed SD. No contact.

15 June
0325 Submerged.
1200 Position: Lat. 46-32.5 N. Long. 151-28.5 E.
2010 Surfaced. Enroute to scheduled patrol line.
2126 Exchanged recognition signals with MANTA on SJ radar.

(6)
[HANDWRITTEN: 90]
[HANDWRITTEN: 8]

— page 9 —
C-O-N-F-I-D-E-N-T-I-A-L
B. NARRATIVE (CONT'D)

16 June
0304 Made trim dive.
0318 Surfaced.
0802 Transmitted WOPACO Serial No. 5 to APOGON and D.CE ordering rendezvous
at start of patrol line.
0820 Received APOGON's WOPACO Serial No. 4 giving her position.
0925 Exchanged recognition signals with APOGON on SJ radar.
1015 Received APOGON's WOPACO serial No. 5.
1025 Exchanged information with APOGON by megaphone.
1100 Opened distance to four (4) miles.
1200 Position: Lat. 46-26.0 N. Long. 154-06.0 E.
1215 Radar contact on D.CE, distance 10000 yards bearing 270°T.
1245 Spoke D.CE on VHF and told her to close us.
1315 Exchanged information with D.CE by megaphone.
1340 Proceeding to patrol line stations, interval between ships fifteen
(15) miles, course 035°T, speed of advance ten (10) knots.
2030 Commenced converting No. 4 FBT.
2138 Completed converting # 4 FBT to HBT.

17 June
0300 Made trim dive.
0320 Surfaced.
0912 Made training dive.
0930 Surfaced.
1200 Position: Lat. 49-14.5 N. Long. 157-46.0 E.
(7)

[HANDWRITTEN: 90]
[HANDWRITTEN: 9]

— page 10 —
C-O-N-F-I-D-E-N-T-I-A-L

B. NARRATIVE (CONT'D)

17 June

1530 Received APOGON's WOPACO Serial No. 8, telling of plane contact.
1830 Received information of B-24 survivor between R.R.MUSHIRO and R.R.IDO.
1845 Transmitted WOPACO Serial No. 6 giving APOGON and DACE search
     positions.
2140 Exchanged recognition signals with DACE on SJ radar.
2300 Sighted DACE.
2315 Commenced transit of ONEKOTAN KAIKYO.

18 June

0140 Radar contact and interference, range 6300, bearing 074. Can be
     seen as APOGON.
0200 Completed transit of ONEKOTAN KAIKYO.
0300 Made trim dive.
0312 Surfaced.
0345 APOGON, who is to search south of AR.IDO, no longer in sight.
     Proceeding in company with DACE to search north of AR.IDO. Believe
     current and south-easterly wind would set boat on course 330°T.
0510 DACE departed for independent search.
0730 From initial point Lat. 51-11.0 N, Long. 155-34.0 E., commenced
     progressive northerly search on courses 090°T and 270°T.
1200 Position: Lat. 51-19.0 N. Long. 155-43.0 E.
1435 Received WOPACO Serial No. 6 from DACE giving area searched and
     stating results negative.
1445 Transmitted WOPACO Serial No. 8 instructing DACE to search west of
     AR.IDO.

(8)
                                                                 [HANDWRITTEN: 90]
                                                                 [HANDWRITTEN: 10]

— page 11 —
C-O-N-F-I-D-E-N-T-I-A-L
B. NARRATIVE (CONT'D)

18 June
1900 In position Lat. 51-19.0 N. Long. 155-43.0 E. Commenced westerly
     search on courses 000°T and 180°T

2035 Transmitted WOP.CO Serial No. 9 to APOGON and D.CE instructing them
     to discontinue search and assigning them new independent patrol areas.
     We will continue search for rest of night.

2140 Received APOGON's contact report WOP.CO Serial No. 10, giving position
     of contact as 50-40 N, 155-16 E, course 200°T, speed 10 knots.

2150 Going ahead full to intercept.

2240 Received D.CE's contact report, WOP.CO Serial No. 7 giving position
     of contact as 50-44 N, 154-33 E, course 220°T, speed 13 knots. This
     is a different contact from APOGON's. Decided to chase D.CE's contact
     since it appears to be heading for L. PAROUSE, whereas APOGON's is
     headed between PARAMUSHIRO and SHIRINKI. Since contacts are but
     thirty miles apart and on almost parallel courses of 220°T and 200°T
     respectively, with us midway between, we are in position to attack
     either as conditions change.

2325 Received APOGON's WOP.CO Serial No. 13 saying she is commencing attack.

2330 Heard series of loud explosions.

2333 Received APOGON's WOP.CO Serial No. 14 saying attack completed.

2335 Three loud explosions.

19 June
0005 Received APOGON's serial No. 15 giving results of attack: two sunk,
     possibly three.

0040 Received APOGON's WOP.CO Serial No. 17 giving target position as
     50-30 N, 154-55 E, course 220°T, speed 9 knots. This puts her con-
     tact in position for us to intercept.

0045 to Sixteen loud explosions.
0050

(9)
[HANDWRITTEN: 90]
[HANDWRITTEN: II]

— page 12 —
C-O-N-F-I-D-E-N-T-I-A-L

B. NARRATIVE (CONT'D)

19 June

0100 Radar interference from APOGON.

0115 Radar contact on APOGON, range 9000 yards.

0120 Transmitted HOP.CO Serial No. 13 to APOGON giving our position.

0125 Radar contact on target, range 15,000 yards bearing 170°T. Commenced
     tracking and approach.

0130 Received APOGON's message stating that target bears 170°T from us.
     This checks with our set-up.

0200 Tracking party has target zig-zagging on base course 350°T, speed
     9.5 knots.

0215 Fired three (3) Mk. 18-2 torpedoes forward, range 2250 yards.

0218 Observed two (2) hits from bridge which corresponded with torpedo
     runs for first two (2) torpedoes. Target exploded. Third timed
     hit was heard in conning tower and control room.

0223 Target disappeared from radar screen, range 4000 yards.

0230 APOGON departed for her assigned patrol area.

0238 Heard series of very distant explosions.

0240 Enroute patrol area west of Long. 148°E.

0430 Submerged.

1200 Position: Lat. 51-11.0 N. Long. 153-48.0 E.

2010 Surfaced.

2145 Transmitted CABEZON's Serial No. 1 to ComSubPac giving results
     of attacks by APOGON and CABEZON.

(10)

[HANDWRITTEN: 90]
[HANDWRITTEN: 12]

— page 13 —
C-O-N-F-I-D-E-N-T-I-A-L
B. NARRATIVE (CONT'D)

20 June
0306 Made trim dive.
0335 Surfaced.
1200 Position: Lat. 52-04.5 N. Long. 151-15.0 E.
2350 Received MANTA's WOPACO Serial No. 2 saying she is rejoining pack
tomorrow in origionally scheduled area.

21 June
0245 Made trim dive.
0305 Surfaced.
1200 Position: Lat. 52-03.5 N. Long. 146-05.0 E.

22 June
0250 Made trim dive.
0325 Surfaced.
1200 Position: Lat. 50-26.5 N. Long. 145-35.5 E.
2130 Transmitted WOPACO Serial No. 16 designating positions for new
patrol line to commence 25 June.

23 June
0400 Made trim dive.
0420 Surfaced.
1200 Position: Lat. 48-27.0 N. Long. 145-40.5 E.

24 June
0330 Made trim dive.
0355 Surfaced.
0830 Submerged to charge and routine torpedoes.
1200 Position: Lat. 48-10.0 N. Long. 147-20.5 E.
1700 Surfaced.

(11)
[HANDWRITTEN: 90]
[HANDWRITTEN: 13]

— page 14 —
C-O-N-F-I-D-E-N-T-I-A-L
B. NARRATIVE (CONT'D)

25 June
0335 Surfaced.
1200 Position: Lat. 47-25.5 N. Long. 150-15.0 E.
1500 Radar interference. Exchanged recognition signals and call signs
     with MANTA.
1512 Radar contact on MANTA, bearing 080°T, range 6500 yards.

26 June
0355 Made trim dive.
0415 Surfaced.
0430 Formed scouting line patrolling east and west.
1200 Position: Lat. 47-41.5 N. Long. 149-20.0 E.

27 June
0315 Made trim dive.
0340 Surfaced.
1200 Position: Lat. 47-28.0 N. Long. 147-45.0 E.
1730 Exchanged information with DACE by searchlight.

28 June
0403 Made trim dive.
0424 Surfaced.
1200 Position: Lat. 47-24.5 N. Long. 148.01.0 E.
1440 Transmitted OPACO Serial No. 28 giving pack positions for new
     scouting line.
1700 Commenced patrolling new scouting line on courses 040°T and 220°T.

(12)
[HANDWRITTEN: 90]
[HANDWRITTEN: 14]

— page 15 —
C-O-N-F-I-D-E-N-T-I-A-L
B. NARRATIVE (CONT'D)

29 June
0340 Made trim dive.
0355 Surfaced.
1200 Position: Lat. 49-29.0 N. Long. 152-02.5 E.
2145 APR-5 contact. This contact lasted until 0025, 30 June at which
time it suddenly disappeared. During this time it steadily increased
in intensity. Frequency 3000 MGS, pulse rate frequency 500 HGS. No
pulse width could be determined. Disconnecting the antenna caused
the contact to disappear, indicating the contact to be from an ex-
ternal source. Later in the morning the contact again returned.
Soon thereafter it was discovered that a grounded control room
heater was causing this contact.

30 June
0325 Made trim dive.
0405 Surfaced.
1030 Rendezvous with APOGON. Gave her instructions for new patrol areas
to commence 1 July.
1200 Position: Lat. 49-33.5 N. Long. 151-54.0 E.
1845 Rendezvous with MANTA. Gave her instructions for new areas.

1 July
0320 Made trim dive.
0345 Surfaced.
1200 Position: Lat. 49-56.5 N. Long. 152-30.0 E.

(13)
[HANDWRITTEN: 90]
[HANDWRITTEN: 15]

— page 16 —
C-O-N-F-I-D-E-N-T-I-A-L
B. NARRATIVE (CONT'D)

2 July
0315 Submerged with ARAIDO bearing 130° distance eight (8) miles.
1200 Position: Lat. 51-04.0 N. Long. 155-38.5 E.
2015 Surfaced.
2120 Received APOGQ's NOPACO Serial No. 38 telling of gun battle with
     two (2) patrol boats.

3 July
0340 Submerged.
1200 Position: Lat. 51-02.5 N. Long. 155-35.0 E.
2000 Surfaced. Enroute KITA URUPPU SUIDO.

4 July
0415 Made deep dive.
0515 Surfaced.
1100 Submerged.
1200 Position: Lat. 49-19.0 N. Long. 152-00.0 E.
1815 Surfaced.

5 July
0020 Exchanged recognition signals with MALTA by SJ radar.
0410 Submerged. Commenced transit of KITA URUPPO SUIDO.
1200 Position: Lat. 46-36.0 N. Long. 151-34.0 E.
1800 Surfaced.

6 July
0045 Exchanged recognition signals with DACE by SJ radar.

(14).
[HANDWRITTEN: 90]
[HANDWRITTEN: 16]

— page 17 —
C-O-N-F-I-D-E-N-T-I-A-L

B. NARRATIVE (CONT'D)

6 July (Cont'd)
0315 Made trim dive.
0340 Surfaced.
1200 Position: Lat. 46-28.0 N. Long. 153-39.0 E.
2030 DACE came alongside and sent over track charts and patrol narrative
     by line throwing gun.

7 July
0345 Made trim dive.
0435 Surfaced.
1200 Position: Lat. 44-57.5 N. Long. 156-18.5 E.
1630 Transmitted CABEZON's third to ComSubsPac.
1800 Departed area in company with DACE enroute Midway.

8 July
0200 Changed zone description to minus eleven (-11).
0430 Made trim dive.
0500 Surfaced.
1200 Position: Lat. 40-48.0 N. Long. 163-06.0 E.

9 July
0430 Made trim dive.
0450 Surfaced.
1200 Position: Lat. 36-41.0 N. Long. 169-23.0 E.
2300 Transmitted rendezvous request to Commander Task Force 17.5.

(15)

[HANDWRITTEN: 90]
[HANDWRITTEN: 17]

— page 18 —
C-O-N-F-I-D-E-N-T-I-A-L
.
ACTIVITY (C)

10 July
0330 Observed some description to plus twelve (-12).
0530 surfaced.
1200 Position: Lat. 32-31.5. Lon. 175-4.0.
2100 Observed some description to plus twelve (+12).

11 July
1120 Sighted an island bearing 065°, distant ten (10) miles.
1200 Position: Lat. 28-14.0. Lon. 171-13.0.
1445 Arrived Midway.

[HANDWRITTEN: 90]
[HANDWRITTEN: 18]

— page 19 —
[HANDWRITTEN: Cabezon #2]

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

C. WEATHER
   Weather conformed with current information.

D. TIDAL INFORMATION
   Tidal observation agreed with information obtained from sailing
   directions and charts.

E. NAVIGATIONAL AIDS
   None observed.

F. SHIP CONTACTS

| No. | Time    | Lat.      | Type(s) | Initial | Est. Co | How       | Remarks    |
|-----| Date    | Long.     |         | Range   | & Sp.   | Contacted |            |
|-----||||||||
| 1   | 0115(K) | 50-39.0 N | Unknown | 15,000  | 350°T   | SJ Radar  | Attack     |
|     | 6/19/45 | 154-38.0 E| (UN)    |         | 9.5     |           | # 1 (See   |
|     |         |           |         |         |         |           | Narrative) |

G. AIRCRAFT CONTACTS
   One possible radar contact at KITA URUPPU SUIDO.

[HANDWRITTEN: HYDRO]
[HANDWRITTEN: 1-XTRA]

(17)

[HANDWRITTEN: 90]
[HANDWRITTEN: 19]

— page 20 —
C-O-N-F-I-D-E-N-T-I-A-L
H. ATTACK DATA TORPEDO ATTACK NO. ONE PATROL NO. ONE
U.S.S. CABEZON (SS334)
TIME: 0215(K) DATE: 19 June, 1945 Lat. 50-39 N. Long. 154-38 E.

TARGET DATA- DAMAGE INFLICTED

Description: Target was an unescorted unidentified medium MARU, only
remaining ship of a four (4) ship escorted convoy attacked
earlier by APOGON. Escorts were occupied depth-charging
area of APOGON's attack. This ship had apparently made
a large change of base course, from 220ºT to 350ºT, to get
off track. Contact was made by radar at a range of 15,000
yards. Target was never seen, since due to fog, visibility
was not more than 500 yards.

Ships Sunk: One (1) unidentified medium MARU (UN)

Ships Damaged: None.

Damage Determined by: Two (2) hits observed by Executive Officer on bridge.
Three (3) timed explosions were recorded in the conning
tower and control room. On second hit, target exploded,
illuminating entire sky momentarily. Target broke up
on the radar screen and disappeared five (5) minutes later,
range 4000 yards. At same time radar had strong pip on
APOGON at 7000 yards.

Target Draft: Unknown. Course: 345ºT. Speed: 9.5 knots. Range: 2250 yards.

OWN SHIP DATA

Speed: 11 knots. Course: 075ºT. Depth: Surface. Angle: Zero.

FIRE CONTROL DATA

Night radar surface attack. Data for plot was obtained entirely from
ranges and true bearing on PPI with radar mast rotating continually at high
speed. A true bearing input to the PPI was installed by USS GRIFFIN during
voyage repairs at Pearl Harbor. This method speeds up plotting procedure
allowing observations to be plotted every thirty seconds if desired. Two (2)
minutes before firing time, steadied radar on target using lobe switching in
order to obtain accurate firing bearings. It has been found that PPI bearings
for ranges under 2000 yards vary as much as five (5) degrees due to extreme
width of pip. Torpedo speed of 27.5 knots was set in TDC, corresponding to
battery temperature of 40ºF.

(18)
[HANDWRITTEN: 90]
[HANDWRITTEN: 20]

— page 21 —
C-O-N-F-I-D-E-N-T-I-A-L

H. ATTACK DATA (CONT'D)

Tube No.                 4          5          6
Track Angle            86.5°P     87.0°P     87.5°P
Gyro Angle             3.5°R      3.0°R      2.5°R
Depth Set              6 ft.      6 ft.      6 ft.
Power                  ---        ---        ---
Hit or Miss            Hit        Hit        Hit
Erratic                No         No         No
Mark Torpedo           18-2       18-2       18-2
Serial Number          99885      99124      99900
Mark Exploder          8-7        8-7        8-7
Serial Number          16564      16466      16934
Actuation Set          Contact    Contact    Contact
Actuation Act          Contact    Contact    Contact
Mark Warhead           18-2       18-2       18-2
Serial                 3224       5290       5471
Explosive              Torpex     Torpex     Torpex
Firing Interval        ---        10 sec.    10 sec.
Type Spread            none       none       none
Sea Condition          Calm       Calm       Calm

Overhaul Activity: U.S. Submarine Base, Pearl Harbor, T.H.
Remarks: No erratic performances were observed.

(19)

[HANDWRITTEN: 90]
[HANDWRITTEN: 21]

— page 22 —
[HANDWRITTEN: Cabezon #2]
C-O-N-F-I-D-E-N-T-I-A-L [HANDWRITTEN: OP-30-3M.]
I. MINES
Sighted two (2) floating contact type mines enroute area in following
positions:
# 1 Lat. 29-37.3 N. Long. 176-49.0 E.
# 2 Lat. 40-35.0 N. Long. 154-20.5 E.
Number one (1) was sunk by gunfire. Number two (2) was exploded
by gunfire.
J. ANTISUBMARINE MEASURES AND EVASION TACTICS
None.
K. MAJOR DEFECTS AND DAMAGE
[HANDWRITTEN: BUSHIPS] Piston Pin Bushing Failure In Number Four Main Engine.
During the mid-watch of 18 June, 1945, the lub oil purifier in the
after engine room was stopped for routine cleaning. Two were running on # 4
M.E. The sediment found was approximately 10 to 15 %. Inspection revealed
no unusual noises or temperatures; lub oil pressure across strainer dropped
from usual 5 lbs to 18-20 lbs., indicating clogging. Turning of knife wiper
reduced this drop to normal, but pressure drop came back within 5 minutes.
Stopped engine for crankcase inspection which revealed large amounts of bronze
flake in crankpit of # 2 & # 10 units, also some white metal and several
pieces of melted aluminum.
On inspection of # 10 unit the following was found. The bronze
bushing had rotated in its steel retainer thus shutting off oil supply to
piston pin assembly. The piston pin had seized in the piston bosses and on
Mogul bushing causing the piston pin to collapse. The Mogul bushing and piston
bosses were gouged by the broken piston pin. The piston rod had moved off
center wrecking crankpin bearing and wearing crankpin nuts smooth on check of
crank webb. The piston rod eye was gouged when it was allowed to come into
contact with the inner crown of the piston. The piston had one (1) horizontal
crack approximately 1/3 of the circumference and one (1) vertical crack 2/3 of
the length of the piston. The liner was cracked and severly scored. The piston pin
cap was melted and portions were missing, later found in crankcase.
It is recommended that present bushing be replaced with the new
approved dowelled Mogul bushings during the forth-coming refit. It is believed
that this approved alteration is necessary before departure on the next patrol.
This change can be accomplished in the alloted time.
(20)
[HANDWRITTEN: 90]
[HANDWRITTEN: 22]

— page 23 —
[HANDWRITTEN: Cabezon #2]
C-O-N-F-I-D-E-N-T-I-A-L
[HANDWRITTEN: BUSHIPS]
[HANDWRITTEN: 2-XTRA']
K. MAJOR DEFECTS AND DAMAGE (Cont'd)

IC Motor Generators

The need for large IC M-G sets is evident with the increase of equip-
ment using AC power. Normal surface cruising requires three (3) IC M-G sets
rated at 8 KVS; or two (2) IC M-G sets with one of them overloaded. It is
recommended that the two M-G sets in the engine rooms be replaced with 15 KVA
M-G sets; thus permitting the use of only two M-G sets at one time, i.e. using
the small set for the gyro and fire control equipment and the large set for
IC, Radio and Sound, Radar, and RCM equipment.

ORDNANCE AND GUNNERY

A full load of Mark 18-2 torpedoes was carried on this patrol during
which two minor casualties occured.

The modified tip on the air charging wing nut was made of soft steel,
which resulted in compressing during an air charge. It was then unable
to open the charging air check valve in the torpedo. It is recommended that
this tip be made of monel metal.

The horizontal and vertical rudders of one torpedo were found to be
frozen on the rods of the packing glands in the afterbody were dry
and set up too tightly, thus causing this casualty.

Because of the low temperatures, the usual charging routine was not
followed. Over a two week period the specific gravity of the torpedoes in
the tubes dropped but seven points, of the relonds. on points. Air
temperatures varied from 38° to 50°, torpedo battery temperature from 42° to 54°.
During the patrol, the torpedoes were charged but five times, at intervals of
two weeks while in the area.

A seven amp charging rate could not be maintained. Seven amps rate
was used for first hour followed by a four amp rate for the second hour,
finishing at seven amps. Specific gravities were normal where-as the voltages
were high, 183 to 190 volts. Consequently no charge was over three hours
in length.

The performance of the three torpedoes fired was excellent resulting
in 100% hits being obtained. Time of run corresponded with speed as set in
the TDC, 27.5 knots. We have been convinced that Mark 18's are the torpedoes
to use, even in cold climates.

(21)
[HANDWRITTEN: 90]
[HANDWRITTEN: 23]

— page 24 —
C-O-N-F-I-D-E-N-T-I-A-L
[HANDWRITTEN: NRL
ORI
BUSHIPS]
L. RADIO
None.
M. RADAR
Installation of a true bearing indicator in the PPI scope lived up
to it's expectations in providing a rapid and accurate method of plotting with-
out the necessity of training on the target for relatively long periods of
time.
N. SONAR GEAR AND SOUND CONDITIONS
With TDM installation, present QB training motor is continuously over-
loaded and should be replaced with a larger motor.
O. DENSITY LAYERS
A 40 to 80 negative gradient at 130 feet was found in all areas of
the OKHOTSK SEA.
P. HEALTH, FOOD, AND HABITABILITY
Health was good. Very few colds were contracted in spite of cold
damp weather. Heavy winter clothing was satisfactory.
Food was excellent and well prepared.
Habitability was good in spite of excessive condensation and low
temperature. Air in the boat was poor when submerged seventeen hours, getting
progressively worse on successive days.
Q. PERSONNEL
(a) Number of men detached after previous patrol. 0 (first patrol)
(b) Number of men on board during patrol. 81
(c) Number of men qualified at start of patrol. 47
(d) Number of men qualified at end of patrol. 68
(e) Number of unqualified men making their
first patrol. 32
State of training of officers and crew is considered very good, with
performance of duty during the attack excellent.
It has been found that the additional radioman and striker carried
on board were necessary to properly guard all necessary circuits.
[HANDWRITTEN: (22)]
[HANDWRITTEN: 3-XTRA']
[HANDWRITTEN: 90
24]

— page 25 —
C-O-N-F-I-D-E-N-T-I-A-L

R. MILES STEAMED - FUEL USED

| | Miles | Fuel |
|---|---|---|
| Pearl Harbor to area | 3240 | 37,605 gals. |
| In area | 5470 | 43,020 gals. |
| area to Midway | 1565 | 22,860 |
| | | [HANDWRITTEN: 103485] |

S. DURATION

| | |
|---|---|
| Days enroute to area | 12 |
| Days in area | 31 |
| Days enroute to base | 4 [HANDWRITTEN: 47] |
| Days submerged | 12 |

T. FACTORS OF ENDURANCE REMAINING

| Torpedoes | Fuel | Provisions | Personnel Factor |
|---|---|---|---|
| 21 | 32,510 gals. | 25 | 15 |

U. COMMUNICATIONS, RADAR, AND SONAR COUNTERMEASURES

Radar Countermeasures:
(a) None noted.

Communications Countermeasures:
(1) Intercept of enemy signals.
(a) None.

(2) Jamming, own and enemy.
(a) Constant enemy jamming was experienced on WOP.CO
frequencies. Communications were not impaired for
this reason however.

(3) Deception, own and enemy.
(a) None

[HANDWRITTEN: NRC]
[HANDWRITTEN: ORI]
[HANDWRITTEN: BUSHIPS]
[HANDWRITTEN: 3-XTRA]

Sonar Countermeasures
(a) None

(23)

[HANDWRITTEN: 90]
[HANDWRITTEN: 25]

— page 26 —
C-O-N-F-I-D-E-N-T-I-A-L

V. REMARKS

Following are the supplementary patrol instructions and communication
plan issued to all units of Task Group 17.15 by this date and:

TASK GROUP 17.15 SUPPLEMENTARY
PATROL INSTRUCTIONS
29 May, 1945.

1. Patrol areas and proposed patrol lines are laid out on charts numbered
   144A, 2876A, 2873C, and 2863.

2. Each patrol area is ten miles in width. Distance from the land will
   be left to the discretion of each Commanding Officer. A patrol not
   farther than fifteen (15) miles from land is recommended for proper
   coverage of the Passages. The order of boats in any patrol area from
   North to South, unless otherwise ordered, will be: MANTA, CABEZON,
   DACE, and POGON. If the patrol line is East-West maintain same order
   MANTA being eastern boat.

3. Two (2) patrol lines are designated on chart number 144A. Boats will
   take station on line of bearing 090-270, distance fifteen (15) miles,
   inboard boat to be on patrol line. Speed of advance ten (10) knots.

4. The schedule for patrolling individual areas will be furnished by
   attached memorandum. On surfacing in the evening, submarines should
   try to be near the center of their lane about fifteen (15) miles from
   land so that a rendezvous can be quickly accomplished if ordered.

5. It is recommended that submarines zig-zag on the surface both day and
   night when in the area.

6. In event information is received concerning enemy forces the Group
   Commander will give appropriate signals in order to intercept. When
   contact is made, broadcast your position in latitude and longitude,
   and give bearing and distance of the enemy.

7. Once contact is made, submarines will operate in accordance with the
   "Coordinated Attack Doctrine".

8. All submarines keep their track and patrol reports up to date. On
   leaving the PACK, the submarine will be required to rendezvous with
   and submit to the Group Commander a rough narrative copy of the patrol
   report. All submarines keep minus ten (10) time.

9. Positive identification of all targets will be made before firing in
   order to reduce possibility of sinking Russian ships or friendly
   submarines.

(24)
[HANDWRITTEN: 90]
[HANDWRITTEN: 26]

— page 27 —
C-O-N-F-I-D-E-N-T-I-A-L
V. REMARKS (CONT'D)

TASK GROUP 17.15 SUPPLEMENTARY
COMMUNICATION PLAN
29 May, 1945.

1. AREA FREQUENCY:
The basic system of pack communications will be C on area frequencies
specified in WOPACO. All submarines will maintain a continuous trans-
mitter receiver watch in accordance with the frequency shift schedule
set forth therein. Use of frequency meter in making SET-UPS is
mandatory. Messages will be encrypted in the effective WOPACO. Call-
ups will not be acknowledged and will be followed immediately by the
message. Messages will be sent through completely, then repeated.
Receipts must be sent promptly by all addressees in numerical order of
Task Unit Designator. Messages and receipts must be authenticated.
Each boat will number serially WOPACO dispatches which it originates
and will include the serial number of each dispatch in the encoded
text.

2. VISUAL:
Visual will be used whenever possible during daylight. At night,
blinker tube may be used at discretion when circumstances permit.
Messages will not be encrypted.

3. SJ RADAR:
SJ Radar will be used when practicable during low visibility. A sub-
marine will call another by matching his pulse rate to that of the sub-
marine called. Upon first contact, submarines will exchange recognition
signals for major war vessels, followed by an exchange of visual calls.
Messages sent by SJ will be encrypted in WOPACO and will not be
authenticated. In general, blinker is preferable for long messages when
it is certain that the area is clear of enemy forces. SJ radar will
not be used for communications during an approach or when it is needed
for a tactical use. In this case, area frequency will be used. Be
especially alert for SJ messages on the hour and half hour.

4. VHF:
VHF will be used for transmitting messages after a rendezvous when
weather, limited time, or other circumstances make the use of visual
means impossible or undesirable. VHF equipment will be manned at all
times when within 10,000 yards of another submarine unless ordered secured

(25)

[HANDWRITTEN: 90]
[HANDWRITTEN: 27]

— page 28 —
C-O-N-F-I-D-E-N-T-I-A-L

V.                 REMARKS (CONT'D)
4.                 VHF: (CONT'D)

                   When messages are being sent by VHF submarines will close the range
                   to within at least 6000 yards of the OTC and conform to his movements
                   in order to maintain the range. VHF channel CAST will be habitually
                   used unless otherwise specified. Standard voice procedure as found
                   in Communication Instructions will be used. Voice calls will be
                   the last number of the task unit designator preceded by the word
                   "STATION". Messages will be encrypted in VOCO and will not be
                   authenticated.

5.                 SHIPS-SHORE FREQUENCY:

                   The first responsibility of the first submarine to make a contact
                   which he considers worthy of coordinated attack is to notify the other
                   submarines of the pack via area frequency. Immediately following this
                   and if the nature of the contact warrants, he will send out a contact
                   report on the ship-shore frequency for re-broadcast on the submarine
                   schedules. (FOX)

                   When advisable following an attack, a single report will be sent by
                   the OTC reporting the results for the pack as a whole.

                   Administrative dispatches, such as requests for entrance rendezvous,
                   will be originated by the OTC.

                   The following general procedure will be followed in sending dispatches
                   on area frequency during a coordinated attack:

                   FIRST ship making contact:
                   (a) Initial report giving location of own ship and target plus
                       additional available information such as number of ships, and
                       escorts (surface and air), course and speed, type of ships.
                       The important factor is speed in giving initial location of
                       contact.

                   (b) As soon as possible give accurate amplifying data as to course
                       and speed, number, type, whether radar-equipped, etc.

                   (c) Thereafter report changes of data given above.

                   (d) Report start of attack, then maintain radio silence until
                       completion of attack.

                                                                                             [HANDWRITTEN: 90]
                                                                                             [HANDWRITTEN: 28]
                                                         (26)

— page 29 —
C-O-N-F-I-D-E-N-T-I-A-L
V. REMARKS (CONT'D)
5. SHIPS-SHORE FREQUENCY: (CONT'D)
(c) It is not necessary to report results after attack. A routine
report of this nature alerts the enemy for further attack and
aids him in breaking the code. However, it is desirable to give
pertinent information such as indication of presence or absence
of radar, correcting a material error in estimated enemy strength,
large changes in course and speed (only if one boat has not made
contact), etc..

SECOND ship making contact:
(a) Initial contact.
(b) If third submarine has not made contact when first submarine
commences attack, assume responsibility for supplying him with
changes of target data.
(c) Start of attack.

THIRD ship making contact:
(a) Initial contact.
(b) If fourth submarine has not made contact when second submarine
commences attack, assume responsibility for supply him with
changes of target data.
(c) Start of attack.

FOURTH ship making contact:
(a) Initial contact, at which time other ships will discontinue re-
ports of target data.
(b) Start of attack.

NOTE:
The necessity for speed in making the initial contact report and
accuracy in stating location of contact cannot be over-emphasized.
Ten (10) minutes may mean the difference between getting one (1)
boat or three (3) boats into attack position.

6. AIRCRAFT CONTACTS:
Any boat diving for an enemy aircraft contact will transmit an alert
signal over the area frequency. This signal to be a series of the
"LETTER OF THE DAY". The letter of the day will be in effect during
local days and will be in alphabetical rotation commencing with "A"
on 5 June.

(27)
[HANDWRITTEN: 90]
[HANDWRITTEN: 29]

— page 30 —
C-O-N-F-I-D-E-N-T-I-A-L
V. REMARKS (CONT'D)
7. RADAR PLAN:

The following is a suggested doctrine for the use of radar. It is
not mandatory.

SJ RADAR:
Man during darkness and low visibility.

SD RADAR:
Man during daylight hours using intermittent keying, on for 2-3 and
off for 20-40 seconds, varying the lengths of the off periods.

Use IFF only in areas where contact with friendly planes is probable.

During hours of darkness have mast raised and radar ready for
operation with variac turned down. It may then be placed in operation
quickly if presence of aircraft is suspected.

SUMMARY OF ACTION OF TASK GROUP 17.15

1400(K) 8 June. DACE destroyed by gunfire one (1) sea truck and
one (1) lugger in KUNASHIRI SUIDO.

1320(K) 10 June. DACE sank one medium AK and probably damaged one (1)
frigate escort in position 47-25 N, 149-04 E.

15 to 20 June. MANTA patrolled in accordance with orders from
ComSubsPac.

2300(K) 18 June. APOGON sank three (3) unidentified marus and one
(1) escort of four (4) ship escorted convoy in position 50-40 N,
155-06 E. Contact reports brought CABEZON in for attack.

0030(K) 19 June. DACE made unsuccessful torpedo attack on lone DE
in position 50-25 N, 154-30 E apparently heading to join convoy
attacked by APOGON. Target apparently saw phosphorescent torpedo
wakes, turned toward and opened fire. DACE dove and received severe
depth charging.

0215(K) 19 June. CABEZON sank remaining unidentified maru of con-
voy attacked previously by APOGON. Position 50-39N, 154-38 E.

(28)
[HANDWRITTEN: 90]
[HANDWRITTEN: 30]

— page 32 —
FB5-322/A16-3
Serial: 07
C-O-N-F-I-D-E-N-T-I-A-L

Submarine Division THREE TWENTY TWO
Care of Fleet Post Office
San Francisco, Calif.

12 July 1945

FIRST ENDORSEMENT to
U.S.S. CABEZON (SS334) Report
of First War Patrol.

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

Subject: U.S.S. CABEZON (SS334) - Report of First War Patrol.

1. The first war patrol of the CABEZON was conducted in the
Kurile Islands Area during the period 25 May, 1945 to 11 July, 1945.
The Commanding Officer of the CABEZON, Commander C.W. Lautrup, acted as
Commander of a coordinated attack group composed of the CABEZON, DACE,
APOGON, and MANTA.

2. Coordinated area coverage was excellent and resulted in
several group contacts and severe damage to the enemy. CABEZON, however,
had but one contact worthy of torpedo fire, which she eliminated exped-
itiously.

3. During the night of 18-19 June, APOGON and DACE reported con-
tacts 30 miles apart, with CABEZON midway between. She elected to go after
DACE'S contact, but heard the explosions resulting from APOGON'S attack.
Shortly thereafter she gained radar contact on APOGON and the one remaining
target - a medium AK. After 45 minutes of tracking, three mark 18-2 tor-
pedoes were fired from 2250 yards, with small gyro angles and six foot
depth settings, for two observed and one timed hit. Target disappeared
from the radar screen at a range of 4000 yards five minutes later.

4. Following are results reported by other members of the attack
group:

| Sunk | Damaged |
|---|---|
DACE | 1 Medium AK | 1 Frigate |
| 1 Sea Truck | |
| 1 Lugger | |
APOGON | 3 Unidentified Maru's | 1 Patrol craft |
| 1 Escort | |
| 1 Patrol Craft | |
MANTA | Conducted special reconnaissance. | |

-1-
[HANDWRITTEN: 90]
[HANDWRITTEN: 32]

— page 33 —
Submarine Division THREE TWENTY TWO
Care of Fleet Post Office
San Francisco, Calif.

FB5-322/A16-3

Serial: 07
C-O-N-F-I-D-E-N-T-I-A-L

12 July 1945

FIRST ENDORSEMENT to:
U.S.S. CABEZON (SS334) Report
of First War Patrol.

Subject: U.S.S. CABEZON (SS334) - Report of First War Patrol.

5. CABEZON returned from patrol exceptionally clean and in ex-
cellent material condition. Refit will be accomplished in the normal
period.

6. The Administrative Division Commander congratulates the Com-
manding Officer, officers, and crew of the CABEZON on the completion of
their first war patrol and on the successful launching of a new fighting
career.

[SIGNATURE: J.R. Waterman]
J.R. WATERMAN

[HANDWRITTEN: 90]
[HANDWRITTEN: 33]

— page 34 —
FC5-32/A16-3
Serial: 091
C-O-N-F-I-D-E-N-T-I-A-L

SUBMARINE SQUADRON THIRTY-TWO

(wd)
Care of Fleet Post Office,
San Francisco, California,
16 July 1945.

SECOND ENDORSEMENT to
U.S.S. CABEZON (SS334) Report
of War Patrol Number ONE.

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

Subject: U.S.S. CABEZON (SS334) - Report of War Patrol Number ONE.

1. Forwarded, concurring in the remarks of the Commander Submarine
Division THREE TWENTY-TWO.

2. It is recommended that the U.S.S. CABEZON be credited with the
following damage to the enemy:

SUNK

1 - Medium AK (UN) 4,000 tons (Torpedo Attack #1)

3. The commanding officer, officers and crew of the U.S.S. CABEZON
are congratulated upon the completion of their first war patrol and the
damage inflicted upon the enemy.

[SIGNATURE: K. C. Hurd]
K. C. HURD.

[HANDWRITTEN: 90]
[HANDWRITTEN: 34]

— page 35 —
FF12-10(A)/A16-3(18)
Serial 01849

CONFIDENTIAL
THIRD ENDORSEMENT to
CABEZON Report of
First War Patrol.

COMSUBSPAC PATROL REPORT NO. 826
U.S.S. CABEZON - FIRST WAR PATROL.

From: The Commander Submarine Force, Pacific Fleet.
To : The Commander in Chief, United States Fleet.
Via : The Commander in Chief, U.S. Pacific Fleet.
Subject: U.S.S. CABEZON (SS334) - Report of First War Patrol.
(25 May to 10 July 1945).

SUBMARINE FORCE, PACIFIC FLEET
nr
Care of Fleet Post Office [HANDWRITTEN: F4254]
San Francisco, California,
25 July 1945.

NOTE: THIS REPORT WILL BE [HANDWRITTEN: 8 0599]
DESTROYED PRIOR TO
ENTERING PATROL AREA.

1. The first war patrol of the CABEZON, under the command of Commander
G. W. Lautrup, Jr., U.S. Navy, was conducted in the Kurile Islands areas. The
CABEZON, U.S.S. DACE (SS247), U.S.S. APOGON (SS308) and the U.S.S. MANTA (SS299)
formed a coordinated attack group with the commanding officer of the CABEZON as
group commander.

2. With excellent group coordination and thorough area coverage,
several contacts were made by this group and severe damage inflicted upon the
enemy. The CABEZON on her first war patrol is to be congratulated for having ob-
tained three hits with the first three torpedoes fired at her first and only
enemy contact during this patrol.

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 CABEZON for this aggressive, success-
ful first war patrol. The CABEZON is credited with having inflicted the following
damage upon the enemy during this patrol:

S U N K
1 - UN [STAMP: ORIGINAL] [HANDWRITTEN: ✓✓] - 4,000 tons (Attack No. 1)
[STAMP: MICRO]
[STAMP: PHOTO-LAB OP-16]
[STAMP: RETURN TO F-4253]

DISTRIBUTION:
(Complete Reports)
Cominch (7) Comsubspac (3)
CNO (5) ComsubspacAdComd (40)
Cincpac (6) SUBD, MI (2)
JICPOA (1) ComsubspacSubordon (3)
AdJICPOA (1) All Squadron and
Comservpac (1) Division Commanders, Pacific(2)
Cinclant (1) ComSubCPTraGrBalboa(Airmail)(5)
Comsubslant (1) Substrainpac (2)
S/M School, NL (8) All Submarines, Pacific (1)
CO, S/M Base, PH (2)
Comsopac (2) [SIGNATURE: L. Miller~]
Comsowespac (2) for
Comsubs7thFlt (Fwd Echelon) (2) E. L. HYNES, 2nd,
Comsubs7thFlt (Rear Echelon) (2) Flag Secretary.
Comnorpac (2)

[STAMP: FILMED]
[HANDWRITTEN: 35]

— page 36 —
0342 | Sighted light on horizon bearing 090 T. Changed course to 090 T.
0400 | Light still visible. Speed 10 knots.
0410 | Light now bearing 085 T. Appears to be a ship's masthead light.
0415 | Increased speed to 12 knots.
0420 | Light now bearing 080 T. Range estimated 10,000 yards.
0425 | Submerged to periscope depth.
0430 | Periscope observation. Sighted one large merchant ship, escorted by two destroyers.
0435 | Commenced approach. Target course 270 T, speed 8 knots.
0440 | Destroyers on either side of merchant. Range to target 8,000 yards.
0445 | Maneuvering for attack position.
0450 | Destroyers appear to be making irregular zig-zags.
0455 | Lost sight of destroyers temporarily due to sea state.
0500 | Regained contact. Destroyers still on flanks.
0505 | Range to target 6,000 yards. Bearing 265 T.
0510 | Preparing to fire torpedoes.
0515 | Fired four torpedoes at merchant ship. Running depth 10 feet.
0520 | Heard two explosions. Observed