U.S.S. GRAMPUS (SS-207) — war patrol report SS-207_GRAMPUS.pdf

— page 1 —
START OF REEL
JOB NO. [HANDWRITTEN: H-108-AR-163-75]
[HANDWRITTEN: R=1]
OPERATOR [HANDWRITTEN: Hauens]
DATE [HANDWRITTEN: 5-13-75]

1.0
1.1
1.25

2.8
3.15
3.0
3.2
3.5
3.8
4.0
4.5
5.0

2.5
2.2
2.0
1.8
1.6

1.4

THIS MICROFILM IS
THE PROPERTY OF
THE UNITED STATES
GOVERNMENT

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

MICROFILMED BY
NPPSO-NAVAL DISTRICT WASHINGTON
MICROFILM SECTION

REEL TARGET, START & END
NAVEXOS 3968

— page 2 —
[HANDWRITTEN: 1st COPY]

A16-3/SS207
Serial 02

U. S. S. GRAMPUS

10-pk
Pearl Harbor, T. H.,
April 4, 1942.

[STAMP: DECLASSIFIED]
From: The Commanding Officer.
To : The Commander Submarines, PACIFIC FLEET.

Subject: War Patrol - report of.

Reference: (a) Submarines, Pacific Fleet, Confidential
Letter No. 3-42.

Enclosure: (A) U.S.S. GRAMPUS War Patrol.

1. In accordance with reference (a), enclosure
(A) is forwarded herewith.

E.S. HUTCHINSON.

Copy to:
Comsubron 6
Comsubdiv 61

[STAMP: DECLASSIFIED]

[STAMP: DECLASSIFIED-ART. 0445, OPNAVINST 5510.1C]
BY [HANDWRITTEN: OP09BC] DATE [HANDWRITTEN: 5/26/72]

ENCLOSURE (A)

[HANDWRITTEN: 40292]

— page 19 —
FB5-61/A16-3
Serial 12
CONFIDENTIAL
From:
To :

SUBMARINE DIVISION SIXTY-ONE
c/o Postmaster,
San Francisco, Calif.
April 4, 1942.

The Commander Submarine Division SIXTY-ONE.
The Commander Submarines, Pacific Fleet.

Subject: U.S.S. GRAMPUS (SS207) - First War Patrol -
Report of.

1. In commenting on the subject report the Div-
ision Commander desires to heartily commend the Captain, Off-
icers and Crew on the splendid performance of the GRAMPUS du-
ring the first war patrol.

2. The following comments are considered pert-
inent and worthy of special mention:

(A) MATERIAL
The performance of the main engines and aux-
iliaries was indeed excellent in view of the piston
casualties suffered previously by this vessel. The trou-
ble experienced with the interior control, motor genera-
tor sets, radar installation and the bow plane tilting
box is being made the subject of intensive investigation
in order to advise the Type Commander of constructive
measures which should be effected to overcome the diffi-
culties and prevent recurrence not only on this vessel
but in all submarines of this class.

(B) TORPEDOES AND FIRE CONTROL
The Division Commander concurs in the comments
of the Commanding Officer in respect to effective pre-
servation of torpedoes when tubes are exposed to the sea.
The action of torpedo personnel in cleaning and slushing
down the aforementioned torpedoes every two days is about
the limit which may be expected in the accomplishment of
this task. It is regretted that the failure of angle
setter to follow the computer should have such a damag-
ing effect on the results of a otherwise successful tor-
pedo attack.

(C) RECONNAISSANCE - NAVIGATIONAL DATA.
The Commanding Officer is to be commended on
the excellent data obtained from his observations of the
equatorial tidal currents and his descriptions of the
installations and runways observed in the Mandated Islands.

- 17 - ENCLOSURE (B)

— page 20 —
FB5-61/A16-3
Serial 12

CONFIDENTIAL
Subject: U.S.S. GRAMPUS (SS207) - First war Patrol -
Report of:

(D) HEALTH, HABITABILITY AND MORALE

Health appeared to be excellent during the
entire patrol. Upon return to base the interior of the
entire ship was spotless and in an exceptional state of
upkeep and preservation. Personnel showed traces of
fatigue but were otherwise clean, smart and in good
spirit. The remark attributed to the Engineer Officer
when asked what was needed seemed to express the attitude
of the crew, from the Captain to the lowest seaman as he
replied "we need only fuel and we are ready to go out and
do it again".

(E) OPERATIONS

The aggressiveness which characterized all
attacks whether successful or not, was most gratifying.
It is regretted that circumstances were unfavorable due
to navigational and other errors for pressing home addi-
tional attacks. It appears reasonable to assume that if
the GRAMPUS had only the advantages of "Even breaks" the
score would have been at least 40,000 tons of shipping.

3. The entire patrol was conducted with intelli-
gence and foresight and the GRAMPUS in spite of some diffi-
culties, is considered to have admirably fulfilled its assign-
ed mission.

Copy to:
Comsubron 6.
C.O. U.S.S. GRAMPUS.

SUBMARINE DIVISION SIXTY-ONE
c/o Postmaster,
San Francisco, Calif.
April 4, 1942.

/s/C. D. EDMUNDS

- 18 -
ENCLOSURE (B)

— page 21 —
FC5-6/A16-3
Serial 0109

CONFIDENTIAL

From:
To :
Subject:

1.  This, the GRAMPUS'S first war patrol covered a
    period of fifty-six days of which twenty-two were spent patroll-
    ing in assigned areas and thirty-four were spent enroute and
    in reconnoitering.

2.  Material performance on this patrol was ex-
    cellent. Unfortunately one attack was spoiled by a failure
    in the torpedo gyro setting system.

3.  Health and endurance of personnel were excellent.
    Officers and crew were in good spirits and excellent physical
    condition at the conclusion of this patrol.

4.  The Squadron Commander considers that this was
    an aggressive, well conducted patrol. Reconnaissance of
    assigned areas was thoroughly carried out, contacts were
    aggressively developed, and attacks pressed home. Torpedo
    depth setting was not in accordance with existing instructions
    which must be followed in the future, and it is considered
    that too many torpedoes were expended. It is believed that
    the GRAMPUS inflicted the following damage on the enemy:

    1 10,152 ton tanker - sunk
    1 8500 - 10,000 ton tanker - sunk

5.  For their first war patrol the Squadron Com-
    mander extends to the Commanding Officer, Officers and Crew
    of the U.S.S. GRAMPUS a "Well Done".

Copy to:

Comsubdiv 61
C.O. GRAMPUS

SUBMARINE SQUADRON SIX

Care of Postmaster,
San Francisco, California,
April 5, 1942.

The Commander Submarine Squadron SIX.
The Commander Submarines, Pacific Fleet.
U.S.S. GRAMPUS (SS207) - First War Patrol -
Report of.

[STAMP: RECEIVED S-C FILES]
[STAMP: Room 2055]
[STAMP: MAY 7 1942]
ROUTE TO:
Op File No. (SC)[HANDWRITTEN: ]
Doc. No. [HANDWRITTEN: ]
Copy No.[HANDWRITTEN: 5] [HANDWRITTEN: of] [HANDWRITTEN: ]
PRN [HANDWRITTEN: 19] [HANDWRITTEN: ]

(6/OL)

A. R. McCANN

ENCLOSURE (C)

— page 22 —
FF12-10/A16-3(5) SUBMARINES; PACIFIC FLEET
Serial 0374 Care of Postmaster,
San Francisco, California,
COMSUBPAC PATROL REPORT NO. 21 April 7, 1942.
U.S.S. GRAMPUS - FIRST WAR PATROL.
[STAMP: COMMINCH-U.S. FLEET MAY - 7 1942 A]

CONFIDENTIAL

From: The Commander Submarines, Pacific Fleet.
To : Submarines, Pacific Fleet.

Subject: U.S.S. GRAMPUS (SS207) - First War Patrol -
Report of.

Enclosure: (A) Copy of subject report.
(B) Comsubdiv 61 Conf. ltr F35-61/A16-3
Serial 12 of April 4, 1942.
(C) Comsubron 6 Conf. ltr F35-6/A16-3
Serial 0109 of April 5, 1942.

1. The Force Commander is especially pleased to
note the aggressive manner in which the patrol was conducted.
All contacts were exploited to the maximum degree but every
effort made to press home the attacks to the complete destruction
of the enemy. It is unfortunate that three attacks were un-
successful due to various causes.

2. It is noted that while the GRAMPUS was within
300 miles of enemy air bases for 42 days, enemy aircraft were
sighted on only four occasions and all were in the immediate
vicinity of bases.

3. The failure of the gyro setting indicator regu-
lator on the first attack was unfortunate. However, this failure
should not have caused misses provided the man stationed at this
instrument had watched pointers by hand and had not left the
matching light turned on when the pointers were not matched.

4. The failure of the torpedo to run on the attack
conducted on March 2 against a patrol vessel may have been due
to flooding of the torpedo. This report bears out previous
conclusions that it is unwise to flood torpedo tubes prior to
contact and that more attacks will be missed due to flooded
torpedoes than by failure to get tubes ready in time to make
the attack.

5. The excellent reconnaissance of Wotje and
Kwajalein, the detailed information on tidal currents and the
good judgment displayed in locating the shipping routes between
Truk and New Britain are all noted.

[STAMP: 40292 FILMED]
- 1 -

— page 23 —
FF12-10/A16-3(5)
Serial 0374
COMSUBPAC PATROL REPORT NO. 21
U.S.S. GRAMPUS - FIRST WAR PATROL.

CONFIDENTIAL
Subject: U.S.S. GRAMPUS (SS207) - First War Patrol -
         Report of.

6. The GRAMPUS is credited with the following losses
inflicted on the enemy:

SUNK

2 - 10,000 ton tankers.

DISTRIBUTION:
Pacific List 7CH-41:
List I, Case 2,
Pl(5), SSF.
Atlantic List 11CH-41:
SO(2)
Special:
LN3(5), LN10(1), LN28(5),
Subschool NL(8),
ComsubSwPac(2), Cominch(5),
Combat Intelligence(1)

[SIGNATURE: E. R. Swinburne]
E. R. SWINBURNE
Flag Secretary. SUBMARINES, PACIFIC FLEET

Care of Postmaster,
San Francisco, California,
April 7, 1942.

T. WITHERS.

[HANDWRITTEN: CTM 114 SUSUP]
[HANDWRITTEN: 2]

— page 25 —
U.S.S. Grampus
10-nk

Fremantle, Australia,
June 17, 1942.

A16-3/SS207

Serial 04

CONFIDENTIAL

From: The Commanding Officer.
To : The Commander Submarines, Southwest Pacific.

Subject: War Patrol - report of.

Enclosure: (A) U.S.S. GRAMPUS War Patrol.

1. Enclosure (A) is forwarded herewith.

[HANDWRITTEN: P P !]
[HANDWRITTEN: =/1] E. S. Hutchinson

[HANDWRITTEN: 42312]

— page 26 —
CONFIDENTIAL
U.S.S. GRAMPUS - REPORT OF SECOND WAR PATROL
PERIOD FROM APRIL 28, 1942, TO JUNE 17, 1942
PEARL HARBOR EN ROUTE FREMANTLE, AUSTRALIA,
PATROLLING AREA FIFTEEN ENROUTE.

1. Narrative.

28 April         Left Pearl Harbor at 0901 in accordance with
                 COMSUBFOR SEVEN Operation Order No. 44-42.

29-30 April      Forced to dive at 0907 April Thirtieth by
                 Navy patrol plane. Gave flare recognition
                 on way down. No bombs or depth charges drop-
                 ped.

1-5 May          Enroute Maloelap on surface. On May 5th at
Lat. 12°-07'     1209 Mike, heard and then sighted 2 motored
N., Long. 177°-   enemy bomber flying at high altitude. Made
39'- E.          quick dive. Evidently not sighted as no
                 explosions were felt.

6 May            Received change of operation order to patrol
                 North Pass, Truk. Went ahead at best econom-
                 ical speed.

Lat. 11°-35'     At 1252 Mike, sighted a submarine estimated
N., Long.        range 10,000 - 12,000 yards. No information
174°-13' E.      of own submarines this vicinity so submerged
                 to make an approach. Evidently other sub-
                 marine dove at the same time, because con-
                 tact was never obtained again, either by
                 sound or observation.

7 May            At 1343 Mike, Radar reported image at 12,000
Lat. 11°-53'     yards. Bridge sighted 2 motored patrol bomb-
N., Long.        er, high altitude on starboard quarter, head-
170°-20' E.      ed for GRAMPUS. Submerged.

8-9 May          Enroute on surface. At 1640 Love, submerged
Lat. 12°-10'     after sighting enemy bomber. So far have
N., Long.        been forced under by three enemy bombers, all
161°-05' E.      flying at much greater altitudes than our own
                 planes. All planes have been headed for
                 GRAMPUS but no bombs or depth charges have
                 been felt.

10-12 May        Received message on 10th May giving possible
                 route of enemy carrier. Arrived at inter-
                 section of possible route on the 11th May so
                 submerged for the day to avoid detection, in
                 the hopes carrier would pass through our
                 position.

                 - 1 -
                                                     ENCLOSURE (A)

— page 27 —
CONFIDENTIAL
1. Narrative (Continued).

12 May submerged patrol, remaining East of
Long. 153°-30' E., in accordance with COM-
TASKFOR SEVEN despatch received on 11 May.

13-16 May
Arrived off North Pass, Truk the night of the
12-13 May. At 0450 submerged estimated posi-
tion 12 miles North of Pass. On obtaining
cuts, had been set to the Northwest. At
0627 King, 13 May, contact No. 2. Considered
too small to attack and disclose our pres-
ence. At 1353 King, 13 May, contact No. 3.
Patrol vessel when sighted was headed for
GRAMPUS. Used various courses to evade. At
1854 King, surfaced on course 270° T., and
at 1920 sighted a blinking light to the West-
ward. Only observed light for about one
minute and as could see nothing believe it
was one patrol vessel signalling to another.

Patrolling off North Pass, Truk, during the
night of 13-14 May. At 0335 Love, heavy rain
squall, visibility about 100 yards, slowed
to listen and at 0345 picked up screws and
echo ranging. Echo ranging had a very wide
beam, so am not sure if there were one or
two vessels. Followed vessel astern by sound
and then proceeded to get away from him on
the surface.

May 14th contact No. 4 and No. 5, also plane
contact. Visibility has been poor, unable to
get any closer than 9 miles from North Pass, Truk.
Have a suspicion our presence is known due to
number of patrol vessels seen. Decided to
approach the pass from the Northwest on the
fifteenth. At 0920 15th while four miles
North of Atoll, patrol vessel sighted, headed
for GRAMPUS. Nothing could be seen anchored
inside North Pass. At 1413 contact No. 7.

On 16 May at 0643 when four miles North of
North Pass, sighted patrol vessel, contact No.
8, headed for GRAMPUS.

Decided they know of our presence and there-
fore must try and patrol possible shipping
routes.

- 2 -
ENCLOSURE (A)

— page 28 —
CONFIDENTIAL
1. Narrative (Continued).

17 May At 0625 contact No. 9. Angle on bow 90 -
110° Port, range 14,000 yards. Attempted
approach but impossible to get in. At
0955 contact No. 10.

Lat. 8°-01' Four minutes after surfacing at 1906 on
N., Long. course 270° T., sighted a flashing white
151°-29' E. light astern. Went ahead on two engines.
At 1912 sound reported pinging on port beam.
At 1917 changed course to 340° T., and at
1920 to 000° T. At 1941 slowed to standard
one engine. Visibility believed to be good,
4000 - 6000 yards and nothing in sight. At
about 1947 sound heard propellers relative
bearing 097° and reported to C.O.D. Sighted
vessel on that bearing, cleared bridge, but
before bridge was cleared was illuminated by
searchlight. At about 1949 on the way down,
depth 30 feet, was hit by what was believed to
be a high explosive shell. At 43 feet either
a shell or depth charge appeared to hit the
ship. Going to deep submergence, putting
into effect Depth Charge Bill.

GRAMPUS sustained depth charge attacks at the
following times by three vessels (three differ-
ent vessels distinctly heard by sound)

TIME | CHARGES
1952 | 3
2001-30 | 2
2003-30 | 2
2004 | 2
2004-15 | 2

The first three charges estimated as the
closest. A quick survey revealed no apparent
damage that could not be controlled. Manouver-
ed to avoid by silent running and changes of
course.

Contact lost at 2144, surfaced at 2324 and
cleared area on two engines, charging with
other two.

GRAMPUS hit by 4" - 5" high explosive shell
on the starboard side of the cigarette deck
bulwark about one foot above engine induction.

- 3 - ENCLOSURE (A)

— page 29 —
CONFIDENTIAL
1. Narrative (Continued).

Damage sustained:
  .50 caliber gun mount carried away,
  R.D.F. tube punctured by shrapnel,
  Bridge riddled with shrapnel,
  Junction box leaks,
  Both after antennas carried away,
  Both gyro and magnetic compasses
  erratic.

18 May
  Cleared area North of North Pass, Truk and
  patrolled sixty miles North of Hall Island
  to give boat a complete check of damage.
  Found no fuel leaks, but found bow buoyancy,
  No. 2 ballast tank and negative looking.

19-24 May
  Patrolled area between Namoita and Hall
  Islands covering approaches to North Pass,
  Truk. This appeared to be better coverage
  of North Pass than directly off North Pass
  for the following reasons:
  (a) More chance of contact at night
  (b) Believe our position was plotted by
      radar nightly while on sur-
      face patrolling East and West courses
      North of North Pass.
  (c) Due to deep water directly up to Pass,
      if our presence was known, it would
      have been easy to divert shipping
      around us. Also desired to work on
      gyro and air leaks.

25 May
  Submerged to the Westward of North Pass,
  patrolling five miles North of Atoll.
  1040 sighted patrol plane circling about two
  miles from our position. 1243 sighted ship
  but lost immediately in rain squall. On
  surfacing left to carry out operation order.

26-29 May
  Enroute Djailolo Pass. Gyro completely over-
  hauled. Swung ship both surfaced and submerg-
  ed. Air leaks stopped, found leaks to be
  from high pressure air manifold.

- 4 -
ENCLOSURE (A)

— page 30 —
CONFIDENTIAL
1. Narrative (Continued).

30 May
At 0105 Inter sighted smoke and determined
course of ship about 310° T. As it was
bright moonlight decided to get ahead of
target and make a daylight submerged approach.
At 0455 submerged and commenced approach. At
0646 fired two torpedoes estimated range
1200 yards. Both missed evidently due to
wake being seen and target changing course.
Unable to get favorable track angle, so at
estimated range of 5500 - 6000 yards battle
surfaced and fired 14 rounds. Evidently no
hits. Target speeded up. Range could have
been closed but did not consider target of
enough military value, freighter of 3000 -
3500 tons, in a light condition, to warrant
the risk of a lucky hit on the submarine.
Although target did not open fire believe he
was waiting for GRAMPUS to close range.
Have become somewhat allergic to gun fire,
as on previous patrol tanked up and also
GRAMPUS was within about 15 yards and also
due to not obtained this patrol. Trailed
target at two engine speed but could not
close so gave attack up.

31 May -
3 June
Enroute Djaillo Pass on the surface.

4 June
At 0022 approaching Djaillo Pass in accord-
ance with operation order.

5 June -
16 June
Enroute Fremantle submerging during day-
light 5 June - 9 June inclusive.

17 June
At 0358 Hypo, contacted escort, proceeded to
Fremantle, Australia.

2. Weather.
In general the weather conformed very close-
ly to Hydrographic Office Publication #165
and #170.

3. Tidal Information.

Reference: (a) H.O. Publication #165 and #170.

5

— page 31 —
CONFIDENTIAL

3. Tidal Information (Continued).
   In general the tidal currents followed ref-
   erences very closely except in isolated
   cases. On 11 May, 1942, while patrolling
   about an area 154° E. and 10° N., a North-
   westerly set of .9 knots was noted. On 12
   May, 1942, while approaching Truk Island
   from above patrol area a 1.5 knots Northerly
   set was experienced for a period of 10 hours.

4. Navigational Aids.
   Landfalls were made on the following places, Truk Islands,
   Halmchera Island, Coran Island and Timor Island. No difficulty
   was experienced either in making landfalls or in identifying
   these islands.

5. Description of Vessels Sighted.

CONTACT: DATE: TIME: POSITION :COURSE:SPEED: DESCRIPTION
NO. : : : : : :

1 : 6 :1255:Lat.11°-35':Unknown :Unknown: Submarine. Unable to
  :May :Mike:-00" N.: :Unknown: make out character-
  : : :Long.174°- : : :istics.
  : : :13'-00" E.: : :

2 : 13 :0627:25 miles :160° T: 12 :Patrol vessel similar
  :May :King:bearing : : :to silhouette S-85,
  : : :345° T., : : :about 900 tons with
  : : :from North: : :seaplane amidships.
  : : :Pass, Truk: : :

3 : 13 :0353:Entrance : Var. : 6 :Small patrol vessel.
  :May :King:North Pass: : :High crows nest. 800
  : : :Truk. : : :tons.

4 : 14 :0938:20 miles : Var. : 6 :Patrol vessel. 400
  :May :King:from North: : :tons.
  : : :Pass, Truk: : :

5 : 14 :1343:12 miles : Var. : 6 :Patrol vessel, small.
  :May :King:from North: : :
  : : :Pass, Truk: : :

6 : 15 :0920:3.5 miles : Var. : 6 :Patrol vessel, small.
  :May :King:North of : : :
  : : :North Pass: : :
  : : :Truk. : : :

7 : 15 :1413:5 miles : Var. : 6 :Patrol vessel, small.
  :May :King:North of : : :
  : : :North Pass: : :
  : : :Truk. : : :

- 6 -
ENCLOSURE (A)

— page 32 —
C O N F I D E N T I A L
5. Description of Vessels Sighted (Continued).

CONTACT:DATE:TIME:POSITION:COURSE:SPEED:DESCRIPTION
NO. : : : : : :

— page 34 —
CONFIDENTIAL
7. Particulars of Attack.

| AT- | NO. TORP | EST. RANGE | FIRING INTER | POINT OF AT | DRAFT OF TARGET | DEPTH SET- | EST. SPEED | TRACK RUN | TORPEDO PERFORMANCE |
|---|
| 0. | | | VAL | TIME | | | | | |
| 1 | 2 | 1200 | 5 secs | H.O.T. | 11 Ft. | 10 Ft. | 8.5 Knots | 100°S | Normal |
| | | Yards | | | | | | | |

REMARKS:-
Results and evidence of sinking - none.
Periscope range and echo pinging checked very closely.
Periscope bearing obtained shortly before firing. Speed
by plot and T.D.C. checked.
Reasons for misses - target observed to change course just
after firing. Sea was calm, slight swells and glassy.

8. Enemy A/S Measures.

Enemy patrol vessels and enemy aircraft patrols.

Have strong reason to believe they have Radar plot off Truk.
No matter where we submerged off North Pass, Truk, a patrol ves-
sel would shortly appear. On 17th May, both of the three patrol
vessels were definitely sent out after dark on our position. Had
been patrolling East and West courses during the night off the
North Pass and believe we were plotted by Radar.

9. Major Defects Experienced.

The noisy operation of the bow and stern planes is consider-
ed a serious military deficiency.

10. Radio Reception.

Radio reception of the NPM fox schedules was excellent dur-
ing the entire patrol run. NPM could always be copied on one of
the three assigned frequencies. Enemy jamming of this schedule
was negligible.

One attempt to transmit to NPM from the area North of Truk
was unsuccessful due partly to natural background noise and
partly to enemy interference.

Reception of the Baker schedules from VIXQ was very poor at
the beginning of the schedules in the early evening. This was
due primarily to enemy interference. Reception became increas-
ingly good during the night until at 0200 H.O. it was excellent.
Enemy interference was nil during this period.

Attempts to transmit to VIXQ were entirely dependent upon
enemy interference which was various from hour to hour.

LAST CONSECUTIVE SERIAL SENT - No. 1
LAST CONSECUTIVE CONTASKFOR SEVEN SERIAL RECEIVED - No. 8

— page 35 —
CONFIDENTIAL

10. Radio Reception (Continued).
COMTASKFOR SEVEN Serial No. 7 not received.

11. Sound Conditions and Density Layers.
Sound conditions were excellent in the area North of Truk and
excellent in the area Southeast of Palau.
No density layers observed.

12. Health and Habitability.
On the second war patrol of the U.S.S. GRAMPUS the health
of the Ship's Crew was excellent with no sick days lost due to
illness or disease and only two days lost as the result of in-
juries.

Two minor accidents occurred:
Namely - (a) Wound, incised, little finger, left hand.
While cutting frozen meat, knife slipped,
severing little finger at proximal end of
second phalange.

(b) Absent acquired teeth Nos. 7 and 8. Lacer-
ation, lip, 3/4 inch; laceration, chin,
1-1/4 inch. While firing deck gun, man was
struck in face by recoil of gun.

The above injuries were ably and efficiently administer-
ed to by J.W. O'NEAL, PHM1c, U.S.N.

The GRAMPUS was very comfortable, but it is not possible
to get the average temperature of the compartments below a
temperature of 89° F., in tropical climates.

13. Factors of Endurance Remaining.
TORPEDOES | FUEL | PROVISIONS (Days) | PERSONNEL (Days)
22 | 38,750 Gals. | 30 Days (Dry) | 10
| | 15 Days (Cold) |

14. This patrol was ended in order to carry out COM-
TASKFOR SEVEN Operation Order No. 44-42.

- 10 -
ENCLOSURE (A)

— page 36 —
[STAMP: COMMANDER IN CHIEF
U.S. FLEET
RECEIVED]
[STAMP: 1942 JUL 24 11 39]

FF6-4/A16-3/
A12-1
Serial (S-003)

SUBMARINES, SOUTHWEST PACIFIC
U.S.S. S-38 (SS143), Flagship,
June 20, 1942.

[STAMP: CONFIDENTIAL]

FROM: Commander Submarines, SOUTHWEST PACIFIC.
TO : Commander-in-Chief, UNITED STATES FLEET.

Subject: War Patrol - Report of

1. "With boldness and a good radar, surface cruis-
ing was constantly possible, but gave away the submarine's
primary advantage of secrecy. The three contacts with enemy
planes in the MARSHALLS gave the enemy information of the
submarine's track and may have contributed to the patrol boat
reception he received.

2. The projectile which struck the bridge
detonated perfectly against the light plating and undoubtedly
would have done very serious damage to the main air induction
valve had it been a foot lower, or the S-38 a few seconds
slower in diving.

C. A. LOCKWOOD, Jr.

DISTRIBUTION:
EACH S/M LANT (1).
COMSUBRON FIVE (2).
COMINCH (3).
COMSUBSPAC (5).
COMSUBSLANT (4).
S/M SCHOOL, NEW LONDON (4).
COMSCOUTSPAC (1).
CHIEF OF STAFF, COMSULS, SWP (1).
S/M CONCERNED (1).
S/M DIV.COMDR. CONCERNED (1).

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10 01346
[STAMP: DECLASSIFIED]
CONFIDENTIAL

U.S.S. GRAMPUS
(SS207)
WAR DIARY [HANDWRITTEN: THIRD WAR PATROL]
JULY 8, 1942, TO
AUGUST 30, 1942

[STAMP: DECLASSIFIED]
SECRET

26
[HANDWRITTEN: 43186]

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10-pk
U.S.S. GRILPUS

SS207/A16-3
Serial 001
[STAMP: CONFIDENTIAL]

August 30, 1942.

From: The Commanding Officer.
To : The Commander Submarines, SOUTHWEST
PACIFIC.

Subject: War Diaries. [HANDWRITTEN: THIRD WAR PATROL]

Reference: (a) Comsubswpac CONFIDENTIAL Ltr. Serial
0150 of June 27, 1942.

Enclosure: War Diary.

1. In accordance with reference (a) the
War Diary is forwarded herewith as enclosure.

[SIGNATURE: E.S. HUTCHINSON]

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U.S.S. GRAMPUS - WAR DIARY

1. The U.S.S. GRAMPUS arrived Fremantle, Australia, 10 July
17th, 1942. Fueled to capacity on arrival and topped off prior
to departing on third patrol. One day was spent in the Magnetic
Calibration Station checking the degaussing coils. This vessel
was overhauled by Ship's Force assisted by the repair force of
the U.S.S. OTUS and fourteen men were assigned to GRAMPUS from
the Submarine Pool, U.S.S. OTUS, to assist Ship's Force. Ship
was provisioned to capacity through Supply Officer, U.S.S. OTUS.
One section at a time were granted five days recreation at the
Ocean Beach Hotel, Cotteslowe, Australia.

This vessel was ordered to depart Fremantle, Austra-
lia on July 8th, 1942 and proceed via Lombok Strait, Makassar
Strait, Sibutu Pass and Cuyo East Pass to a patrol area on the
Western coasts of Mindoro and Luzon between AmbuLong Island and
Latitude nineteen North, paying particular attention to Manila
Bay Area, and conduct an offensive war patrol against enemy com-
batant and transport ships.

July 8, 1942, -8 zone time.

Operating under Commander Submarines, SOUTHWEST
PACIFIC Secret Operation Order No. 34-42.

1538 Underway from Fremantle in accordance with operation
order.

1705 Made trim dive and was observed by plane for air and
oil leaks.

1727 Surfaced.

2000 POSITION - Latitude 31°-37'-00" S
Longitude 115°-10'-00" E

Fuel expended - 1105 gallons.

July 9

1435 Sighted friendly patrol plane, distant 7 miles.
Held instruction for new personnel.

0800 POSITION - Latitude 29°-55'-00" S
Longitude 113°-22'-00" E

1200 POSITION - Latitude 29°-05'-00" S
Longitude 113°-00'-00" E

2000 POSITION - Latitude 27°-27'-00" S
Longitude 112°-44'-00" E

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Heavy seas from the South West.

Course made good 320° T., distance since leaving
Fremantle 228 miles.

Fuel expended - 3815 gallons.

July 10
Underway on surface following bombing restriction
lanc.

1358 Submerged to 200 feet. Did not go to deep submer-
gence for boat was tight at 200 feet and did not desire to
flood T.B.T's. On surfacing starboard T.B.T. had flooded.
Held instruction for new personnel on board.

0800 POSITION - Latitude 24°-59'-00" S.
Longitude 112°-29'-30" E.

1200 POSITION - Latitude 24°-07'-00" S.
Longitude 112°-23'-00" E.

2000 POSITION - Latitude 22°-35'-30" S.
Longitude 112°-21'-00" E.

Course made good 352.5° T., distance made good 293
miles.

Fuel expended - 3265 gallons.

July 11
Underway on surface for Exmouth Gulf, Australia in
accordance with C.S.S.W.P. dispatch to contact U.S.S.
WILLIAM B. PRESTON in that area.

0851 Exchanged calls with WILLIAM B. PRESTON and at 0927
set course for Lombok Strait.

0800 POSITION - Latitude 21°-59'-00" S.
Longitude 114°-37'-00" E.

1200 POSITION - Latitude 21°-20'-30" S.
Longitude 114°-17'-00" E.

2000 POSITION - Latitude 19°-49'-00" S.
Longitude 114°-22'-00" E.

Course made good 029° T., distance made good 218
miles.

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U.S.S. GRAPUS - WAR DIARY

Fuel expended - 2755 gallons.

July 12
0642 Made a training dive and surfaced at 0720. Held in-
     struction for new personnel.
0800 POSITION - Latitude 17°-46'-00" S.
     Longitude 114°-40'-00" E.
1200 POSITION - Latitude 17°-04'-00" S.
     Longitude 114°-46'-00" E.
2000 POSITION - Latitude 15°-39'-00" S.
     Longitude 114°-56'-30" E.
     Course made good 007° T., distance made good 234
     miles.

Fuel expended - 1365 gallons.

July 13
0900 Made a training and trim dive and surfaced at 0915.
0800 POSITION - Latitude 13°-36'-00" S.
     Longitude 115°-10'-30" E.
1200 POSITION - Latitude 13°-01'-30" S.
     Longitude 115°-15'-30" E.
2000 POSITION - Latitude 11°-48'-30" S.
     Longitude 115°-21'-30" E.
     Course made good 007° T., distance made good 234
     miles.

Fuel expended - 2225 gallons.

July 14
     As we were inside the 150 mile circle of the Malay
Barrier, submerged to conduct a submerged patrol during
daylight.
     Had planned on passing through Lombok Strait night
of July 14, but on getting star sights we had experienced
a Southerly set. From fix set course for Strait, but due
to poor visibility could not find it.
0800 POSITION - Latitude 9°-35'-00" S.
     Longitude 115°-31'-00" E.

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U.S.S. CRAMPUS - WAR DIARY

July 14
1200         POSITION - Latitude 9°-24'-00" S
                          Longitude 115°-23'-00" E
2000         POSITION - Latitude 9°-11'-00" S
                          Longitude 115°-22'-00" E
             Course made good 001° T., distance made good 218
miles.
             Fuel expended - 1400 gallons.

July 15
             Underway on surface until submerging at 0537.
             Patrolling South of Lombok Strait.
             Surfaced at 1908 and went through Lombok Strait.
0800         POSITION - Latitude 9°-01'-00" S
                          Longitude 115°-48'-00" E
1200         POSITION - Latitude 9°-10'-00" S
                          Longitude 115°-48'-00" E
2000         POSITION - Latitude 8°-52'-00" S
                          Longitude 115°-43'-00" E
             Course made good 055° T., distance made good 45
miles.
             Fuel expended - 1230 gallons.

July 16
             Submerged and surfaced at 1857.
0543
1902         Sighted small patrol boat, or possibly a submarine
             bearing 295° T., distance about 6000 yards headed towards
             us. As the visibility was deceptive and we were only
             partially blown up submerged at 1904.
             Heard nothing on sound so surfaced at 1945.
0800         POSITION - Latitude 7°-16'-00" S
                          Longitude 116°-19'-00" E
1200         POSITION - Latitude 7°-06'-00" S
                          Longitude 116°-25'-00" E
2000         POSITION - Latitude 6°-46'-00" S
                          Longitude 116°-40'-00" E
             Course made good 033° T., distance made good 162
miles.
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U.S.S. GRAPPUS - WAR DIARY

Fuel expended - 1020 gallons.

July 17

0426 Sighted a small ship, believed a patrol vessel bearing
     043° T. distance 4000 yards headed toward us.

     As it was nearly time to submerge for the day sub-
     merged at 0427.

     Could hear nothing on sound. At daylight saw four
     or five sail boats, so believe maybe boat sighted at 0426
     was a sailing vessel.

0800 POSITION - Latitude 5°-16'-30" S.
               Longitude 117°-13'-00" E.

1200 POSITION - Latitude 5°-07'-00" S.
               Longitude 117°-20'-30" E.

2000 POSITION - Latitude 5°-01'-00" S.
               Longitude 117°-20'-30" E.

     Course made good 006° T., distance made good 125
     miles.

     Fuel expended - 960 gallons.

July 18

0506 Underway on surface sighted flashing white light one
     half point on starboard bow.

0527 Sighted sail boat bearing 345° R., close aboard.
     Maneuvered to avoid.

0520 Submerged to conduct submerged patrol.

0740 Sighted escorted tanker or ore ship, range of about
     11,000 yards in position Latitude 3°-50' S., Longitude
     119°-10' E. Made attack and fired three torpedoes. Sound
     did not hear explosions, but two explosions were heard in
     three different compartments of the ship. Commanding
     Officer observed about three quarters of target enveloped
     in a light blue smoke 2 minutes 19 seconds after first
     torpedo was fired. From position of smoke it is believed
     at least one torpedo went under target.

     Surfaced at 1857 and saw a small patrol vessel on
     starboard bow. Turned away from him to observe his
     actions. He did not see us but about 1905 the diving
     officer reported to the bridge he could hear depth charges.

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U.S.S. GRAMPUS - WAR DIARY

Depth charges were then heard at intervals until 2000.
It is believed he was searching for us after the morning
attack. This is the first time we have been depth
charged while on the surface.

2200 Set course for Cape William.

0800 POSITION - Latitude 3°-37'-00" S.
Longitude 118°-28'-00" E.

1200 POSITION - Latitude 3°-30'-00" S.
Longitude 118°-34'-00" E.

2000 POSITION - Latitude 2°-50'-00" S.
Longitude 118°-22'-00" E.

Course made good 038° T., distance made good 122
miles.

Fuel expended - 855 gallons.

July 19

Underway on surface. Sighted lights at the fol-
lowing times apparently on sailing vessels - 0112, 0230,
0355.

0507 Submerged off Cape William, Celebes.

Made turns for four knots and made 8 miles good
during time submerged. Surfaced at 1859.

Weather overcast with frequent rain squalls.

No A.M. or P.M. stars.

0800 POSITION - Latitude 2°-42'-00" S.
Longitude 118°-40'-00" E.

1200 POSITION - Latitude 2°-40'-00" S.
Longitude 118°-39'-00" E.

2000 POSITION - Latitude 2°-27'-00" S.
Longitude 118°-35'-00" E.

Course made good 005° T., distance made good 50
miles.

Fuel expended - 1070 gallons.

July 20

Underway on surface.

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U.S.S. GRAMPUS - WAR DIARY

Submerged at 0527 and surfaced at 1559.
2030    Crossed Equator. Weather overcast during the day.
0800    POSITION - Latitude 0°-44'-00" S.
        Longitude 119°-00'-00" E.
1200    POSITION - Latitude 0°-32'-00" S.
        Longitude 119°-03'-00" E.
2000    POSITION - Latitude 0°-05'-00" S.
        Longitude 119°-13'-30" E.
        Course made good 011.5° T., distance made good 127
miles.
        Fuel expended - 965 gallons.

July 21
Underway on surface.
0200    Position Latitude 01°-00' N., Longitude 119°-33'-00"
        E., starboard lookout reported a torpedo wake about fif-
        teen yards off starboard beam and passed ahead of GRAMPUS.
        Changed course to parallel wake and went ahead standard.
        The O.O.D. did not see the wake and neither did sound hear
        anything.
0207    Resumed base course 000° T.
        Submerged at 0528 and surfaced at 1903.
        All stars very poor and no P.M. stars.
0800    POSITION - Latitude 1°-21'-00" N.
        Longitude 119°-28'-00" E.
1200    POSITION - Latitude 1°-27'-00" N.
        Longitude 119°-33'-00" E.
2000    POSITION - Latitude 1°-40'-40" N.
        Longitude 119°-40'-40" E.
        Course made good 012° T., distance made good 124
miles.
        Fuel expended - 1020 gallons.

July 22
Underway on surface on course 003° T., standard
speed on one engine.

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U.S.S. GRAMPUS - WAR DIARY

Submerged at 0525 and surfaced at 1904.
From Dead Reckoning had hoped to pick up Sibutu
Pass and proceed through it at night. Not sighted while
submerged.

1953 Sighted land but could not make out or identify
our position.

2125 Got a fix by cuts on land and poor stars and de-
cided it was too late to proceed through Sibutu Pass at
Pearl Bank during the night.

Patrolling South of Sibutu Pass.

0800 POSITION - Latitude 3°-42'-00" N.
Longitude 119°-53'-00" E.

1200 POSITION - Latitude 3°-54'-00" N.
Longitude 119°-53'-00" E.

2000 POSITION - Latitude 4°-37'-00" N.
Longitude 119°-54'-00" E.

Course made good 008° T., distance made good 147
miles.

Fuel expended - 725 gallons.

July 23

Conducting surface patrol off Sibutu Pass.

0026 O.O.D. reported lights of plane sighted. Plane
headed towards Tarakan.

Submerged at 0520 and surfaced at 1914. Conducted
submerged patrol off Sibutu Pass. Did not go through
the Pass submerged due to currents.

2032 Sibutu Island abeam to port, distance 9 miles.

0800 POSITION - Latitude 4°-27'-00" N.
Longitude 119°-40'-00" E.

1200 POSITION - Latitude 4°-28'-00" N.
Longitude 119°-45'-00" E.

2000 POSITION - Latitude 4°-51'-00" N.
Longitude 119°-38'-30" E.

Course made good 345° T., distance made good 35
miles.

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U.S.S. GRAPUS - WAR DIARY

Fuel expended - 1080 gallons.
July 24
Underway on surface approaching Pearl Bank.
0000 Ran into rain squall, slowed to five knots.
0022 Ahead standard speed, 14 knots.
0103 Pearl Bank abeam to port, distance five miles.
Submerged at 0521 and surfaced at 1910.
2215 Heavy rain squalls.
0800 POSITION - Latitude 6°-40'-00" N.
         Longitude 120°-09'-00" E.
1200 POSITION - Latitude 6°-53'-00" N.
         Longitude 120°-13'-00" E.
2000 POSITION - Latitude 7°-20'-00" N.
         Longitude 120°-24'-00" E.
Course made good 012° T., distance made good 148
miles.

Fuel expended - 1085 gallons.
July 25
Underway on surface, proceeding to station. Rain
squalls from midnight until about 0400 with visibility
sometimes zero.
0518 Submerged and surfaced at 1910.
0905 O.O.D. reported sighting enemy tanker distance
about 20,000 yards on approximate course 185°. Came to
150° T. for normal approach course but was never able
to sight reported ship again.
0933 Resumed base course 030° T. Latitude 8°-55' N.,
         Longitude 121°-21' E.
For the past few days have had several complaints
of personnel feeling nauseousness and loss of appetite.
Investigating food and water.
0800 POSITION - Latitude 8°-56'-00" N.
         Longitude 121°-20'-00" E.

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1200   POSITION - Latitude 9°-06'-00" N
                  Longitude 121°-25'-00" E
2000   POSITION - Latitude 9°-22'-01" N
                  Longitude 120°-40'-00" E
       Course made good 032° T., distance made good 135
       miles.
       Fuel expended - 990 gallons.
       July 26
       Underway on surface.
0140   Naso Point, Panay abeam, distance 10 miles.
       Heavy rain squalls 0000 - 0400.
0502   Submerged and surfaced at 1908.
2300   Sighted Mindoro.
       Have been running by Dead Reckoning as it is seldom
       that stars are available for shooting.

0800   POSITION - Latitude 11°-08'-00" N
                  Longitude 121°-47'-00" E
1200   POSITION - Latitude 11°-20'-15" N
                  Longitude 121°-49'-45" E
2000   POSITION - Latitude 11°-34'-10" N
                  Longitude 121°-36'-45" E
       Course made good 357° T., distance made good 135
       miles.
       Fuel expended - 945 gallons.
       July 27
       Underway on surface approaching Apo East Pass.
0110   Ambulong abeam to starboard, distance four miles.
       This pass evidently not patrolled at this time as it was
       bright moonlight and visibility unlimited.
0156   Sighted flashing light on starboard bow evident-
       ly on Mindoro.
0309   Sighted small vessel two points on port bow on
       opposite course 160° T., distance about 2000 yards. Divod.
       O.O.D. believed vessel to be a small patrol vessel. Fol-
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U.S.S. GRAPUS -
WAR DIARY

lowed him by sound giving a turn count of 160 R.P.M.
0410 All clear, surfaced.
0458 Submerged and surfaced at 1917.
1939 Cape Calavite abeam to starboard 5.5 miles.
Followed close to coast of Mindoro submerged 3 - 5
miles in hopes of intercepting shipping. Nothing sight-
ed.
2120 Sighted a light later identified as Cobra Island
Light.
0800 POSITION - Latitude 12°-56'-30" N.
 Longitude 120°-37'-00" E.
1200 POSITION - Latitude 13°-04'-30" N.
 Longitude 120°-31'-15" E.
2000 POSITION - Latitude 13°-12'-00" N.
 Longitude 120°-14'-00" E.
Course made good 333° T., distance made good 120
miles.
Fuel expended - 925 gallons.

July 28
Underway for a position 35 miles due West of Cor-
regidor. Chose this position due to the full moon
wanting to feel my way as to anti-submarine measures be-
fore getting closer to Manila Bay. While there is con-
siderable rain the visibility due to the moon has been
good and it would be impossible to surface among patrol
vessels to get in a battery charge.
0455 Submerged and surfaced at 1915.
Visibility poor all day. Unable to get any cuts.
On surfacing decided to set course for B Line a
running about 15 miles from coast on last reported route
of convoys. Will come back to Manila Bay area after the
full moon. It has been just like daylight during the
night when it is not raining.
0800 POSITION - Latitude 14°-17'-45" N.
 Longitude 119°-52'-00" E.

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1200 POSITION - Latitude 14°-16'-30" N
         Longitude 119°-51'-00" E
2000 POSITION - Latitude 14°-19'-00" N
         Longitude 119°-37'-45" E
         Course made good 339° T., distance made good 77
         miles.
         Fuel expended - 830 gallons.

         July 29
         Underway for a position about 15 miles West of
         Bolinao. Sky overcast but visibility good due to full
         moon.
0510 Dived and surfaced at 1916.
         Visibility decreased throughout the day, making
         distance covered by periscope observations very limited.
2136 Sighted a steady white light on starboard bow. On
         closing and investigating light could see no definite
         lights. Closed light until was certain it was on a fish-
         ing vessel.

0800 POSITION - Latitude 15°-58'-45" N
         Longitude 119°-27'-30" E
1200 POSITION - Latitude 16°-06'-00" N
         Longitude 119°-32'-00" E
2000 POSITION - Latitude 16°-27'-30" N
         Longitude 119°-27'-00" E
         Course made good 346° T., distance made good 114
         miles.
         Fuel expended - 545 gallons.

         July 30
         Patrolling off Bolinao, Luzon, on most probable
         shipping lane.
         Visibility poor due to heavy rain.
         Sighted light of fishing vessel frequently during
         00 - 04 watch.
0503 Dived and surfaced at 1918.

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0900 Sighted small boat and on closing found it to be
  what was thought to be the fishing vessel sighted during
  the night. It was a small power boat with two men were
  observed aboard. It had the Japanese flag painted on the
  stern and also Japanese writing. Large cargo lights were
  observed on the side. Boat was lying to but engines were
  running at times, evidently changing bait. We had no
  idea what purpose boat was serving as they did not seem
  to be fishing. No guns or depth charges observed. Lati-
  tude 16°-36' N., Longitude 119°-31' E.

Visibility very poor throughout the day.

0800 POSITION - Latitude 16°-36'-00" N.
  Longitude 119°-23'-00" E.

1200 POSITION - Latitude 16°-42'-00" N.
  Longitude 119°-35'-30" E.

2000 POSITION - Latitude 16°-28'-30" N.
  Longitude 119°-28'-00" E.

Course made good 013° T., distance made good 35
miles.

Fuel expended - 650 gallons.

July 31

As visibility has been so poor decided to patrol
off Bolinao another day. All running on Dead Reckoning
and not so sure of our position. Visibility at times is
zero due to heavy rain.

0510 Dived and surfaced at 1914.

Sighted land about 1700 but rain squalls indi-
ly obscured it.

For the last few days the weather has been very un-
favorable for successful submarine operations.

0800 POSITION - Latitude 16°-09'-00" N.
  Longitude 119°-28'-00" E.

1200 POSITION - Latitude 16°-04'-30" N.
  Longitude 119°-20'-00" E.

2000 POSITION - Latitude 16°-26'-00" N.
  Longitude 119°-31'-00" E.

Course made good 193° T., distance made good 38
miles.

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Fuel expended - 620 gallons.

August 1

Having had such poor visibility decided to patrol
for another day off of Bolinao.

Rain continued throughout the night.

0507 Dived and surfaced at 1921.

During the morning the weather commenced clearing.
Sighted Bolinao and we were about ten miles from. This
is the first day of fair visibility since passing Subu-
lon on the 27th July.

Nothing sighted.

Decided on surfacing to head North on patrol
North part of area in hopes of getting better weather.
Although operation order desires concentration on Manila
Bay, weather has been such to make this impossible.

0800 POSITION - Latitude 16°-22'-30" N.
Longitude 119°-36'-00" E.

1200 POSITION - Latitude 16°-18'-30" N.
Longitude 119°-32'-00" E.

2000 POSITION - Latitude 16°-23'-00" N.
Longitude 119°-29'-00" E.

Course made good 351° T., distance run 16
miles.

Fuel expended - 645 gallons.

August 2

Underway on surface heading for North part of
Area.

0510 Submerged and surfaced at 1915. Visibility bet-
ter than it has been.

2050 Sighted white light and on investigation was light
from a fishing or patrol vessel. Latitude 16°-35'-00"
N., Longitude 119°-37'-00" E.

Have reason to believe this vessel and one sighted
off Bolinao are used as station ships, or decoys of some
kind.

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[HANDWRITTEN: J/S mark]

2250        Commenced patrolling East and West courses cutting
            traffic lane.

0800        POSITION - Latitude 17°-46'-00" N.
                       Longitude 119°-30'-00" E.

1200        POSITION - Latitude 17°-57'-00" N.
                       Longitude 119°-37'-00" E.

2000        POSITION - Latitude 18°-23'-30" N.
                       Longitude 119°-40'-30" E.

            Course made good 005° T., distance made good 99
miles.

            Fuel expended - 525 gallons.

            <u>August 3</u>

            Underway on surface patrolling.

0509        Submerged and at 0704 sighted a ship, unescorted,
            position Latitude 18°-55' N., 119°-36' E. (62 miles bear-
            ing 292° T. from Cape Bojeador Light, Luzon, P.I.).
            Unable to close for attack.

1924        Surfaced. Visibility good. Stars obtained in
            the A.M.

0800        POSITION - Latitude 18°-57'-40" N.
                       Longitude 119°-23'-00" E.

1200        POSITION - Latitude 18°-54'-00" N.
                       Longitude 119°-35'-00" E.

2000        POSITION - Latitude 18°-51'-00" N.
                       Longitude 119°-35'-00" E.

            Course made good 358° T., distance made good 57
miles.

            Fuel expended - 575 gallons.

            <u>August 4</u>

            Patrolling shipping lanes.

0510        Submerged.

0803        Sighted enemy tanker, unescorted in Latitude 18°-
            55' N., Longitude 119°-36' E., at a range of about
            15,000 yards. Unable to close for attack.

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The ship on the third was coming from the North and
this tanker from the S.W. I believe this point to be a
departing point.

Visibility good.

Stars A.M. and P.M.

On surfacing at 1922 decided to remain at this
point another day.

0800 POSITION - Latitude 18°-50'-00" N.
Longitude 119°-37'-00" E.

1200 POSITION - Latitude 18°-55'-00" N.
Longitude 119°-33'-00" E.

2000 POSITION - Latitude 18°-54'-30" N.
Longitude 119°-28'-00" E.

Course made good 288° T., distance made good 2 miles.

Fuel expended - 535 gallons.

August 5

Patrolling on surface.

Before diving at 0511 obtained stars for a fix and
when working it out found we had been set to Westward 17
miles. We have been able to account for this set as it
was not experienced on the two previous days.

Surfaced at 1925. Weather becoming overcast. De-
cided to head on believed shipping route to Manila Bay.
Desire to spend about five days off Manila Bay, weather
permitting.

Visibility poor 2000 - 2400.

0800 POSITION - Latitude 18°-51'-30" N.
Longitude 119°-26'-00" E.

1200 POSITION - Latitude 18°-51'-30" N.
Longitude 119°-38'-15" E.

2000 POSITION - Latitude 18°-57'-30" N.
Longitude 119°-43'-15" E.

Course made good 107° T., distance made good 10
miles.

Fuel expended - 600 gallons.

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August 6

Underway on surface following shipping route C from
Bojeador to Manila. Course set from Latitude 18°-55' N.,
Longitude 119°-36' E., to a point 15 miles West of
Bolinao.

Submerged at 0516 and surfaced at 1918.

Visibility very poor throughout day. Maximum
range about 4000 yards. Winds and seas increasing in the
afternoon.

0800 POSITION - Latitude 17°-43'-30" N.
Longitude 119°-35'-30" E.

1200 POSITION - Latitude 17°-31'-30" N.
Longitude 119°-34'-00" E.

2000 POSITION - Latitude 17°-05'-00" N.
Longitude 119°-32'-00" E.

Course made good 184° T., distance made good 81
miles.

Fuel expended - 590 gallons.

August 7

Underway on surface. Visibility generally zero
with wind velocity at times 45 knots.

Submerged at 0519.

1635 Rain let up and sighted Bolinao, distance 10
miles.

0800 POSITION - Latitude 16°-11'-00" N.
Longitude 119°-22'-30" E.

1200 POSITION - Latitude 16°-04'-00" N.
Longitude 119°-31'-15" E.

2000 POSITION - Latitude 16°-31'-00" N.
Longitude 119°-35'-00" E.

Course made good 180° T., distance made good 85
miles.

Fuel expended - 630 gallons.

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Au ust 8

Underway on surface for Manila Bay Area.

Submerged at 0517 and surfaced at 1917.

Maximum visibility about 4000 yards, but gener-
ally less. Very poor and discouraging weather for sub-
marine operations.

Seas are rough and sound noisy. Any number of
targets could have passed close without our knowledge.

0800 POSITION - Latitude 15°-27'-15" N.
Longitude 119°-27'-00" E.

1200 POSITION - Latitude 15°-17'-00" N.
Longitude 119°-32'-45" E.

2000 POSITION - Latitude 15°-00'-30" N.
Longitude 119°-39'-00" E.

Course made good 184° T., distance run 40
miles.

Fuel expended - 680 gallons.

Au ust 9

Underway on surface, running on Dead Reckoning,
attempting to make landfalls on Cabra Island.

Submerged at 0516.

0714 Weather cleared enough to sight land. Approach-
ed land until we had Cabra Island light abeam, distance
8 miles, when we headed towards Corregidor.

Seas rough requiring at least 10 feet of periscope
for observation.

Just before sunset weather appeared to be clear-
ing, so had hopes of patrolling off Corregidor for the
next three or four days.

Surfaced at 1916 in a heavy rain squall, wind
force 7, N.S.W., seas heavy and a thunder and lightnin
storm. Daylight at this time of year was unfavorable.
Luzon was unfavorable for any submarine operations so
headed West in hopes of finding better weather away from
land and intercepting any Manila and West China Sea
shipping.

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0800         POSITION - Latitude 14°-06'-00" N.
                        Longitude 119°-48'-15" E.

1200         POSITION - Latitude 14°-02'-05" N.
                        Longitude 120°-01'-00" E.

2000         POSITION - Latitude 14°-06'-30" N.
                        Longitude 119°-52'-45" E.

             Course made good 163° T., distance made good 83
miles.

             Fuel expended - 675 gallons.

             August 10

             Underway on course 257° T.

0523         Submerged patrolling a line bearing 257° T., from
             Corregidor.

             Weather generally overcast, but visibility at
             times better than it has been.

1647         While on course 220° T., sighted a ship bearing
             310° T., distance about seven miles. Lost
             only sighted by rapid change of bearing. Ship was
             probably a destroyer. Had hopes she was coming out to
             meet a convoy. Ship was on course about 255° T., and
             passed out of sight before an approach could even be
             started.

             On surfacing at 1916 decided to patrol this area.

             Weather clearing during the night.

0800         POSITION - Latitude 13°-56'-00" N.
                        Longitude 118°-58'-30" E.

1200         POSITION - Latitude 14°-00'-00" N.
                        Longitude 118°-53'-30" E.

2000         POSITION - Latitude 13°-51'-00" N.
                        Longitude 118°-58'-00" E.

             Course made good 267° T., distance made good 62
miles.

             Fuel expended - 630 gallons.

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August 11

Patrolling on courses North and South until 2400
when changed course to 077° T.

Submerged at 0513. Weather overcast but cleared
around 0800. Visibility then good thru out the day.

Surfaced at 1919, and decided to patrol this area
for two more days due to having found good weather and
also possibility of intercepting any shipping from Singa-
pore or West China Sea to Manila. We have been locat-
ed enroute and feel will accomplish more than wasting time
closer to Manila where weather has never been favorable
for observing anything submerged.

0800 POSITION - Latitude 14°-09'-00" N.
Longitude 119°-33'-00" E.

1200 POSITION - Latitude 14°-04'-30" N.
Longitude 119°-34'-30" E.

2000 POSITION - Latitude 14°-06'-30" N.
Longitude 119°-39'-30" E.

Course made good 082.5° T., distance made good 37
miles.

Fuel expended - 600 gallons.

August 12

Patrolling on surface.

0512 Submerged.

1120 Sighted ship bearing 272° T., with an estimated
angle on bow of over 90 degrees. Due to normal approach
course and increased speed but chances of closing in look
unfavorable.

1225 Target drawing ahead slowly and with an angle on bow
over 90 degrees target zigged towards GRAMPUS. Went to
battle stations.

1305 Fired three torpedoes at target. First bubbles
seen just ahead of target, second bubbles passed just aft
of stack, third bubbles not observed. Cannot explain
reasons for torpedoes not exploding as no definitely
passed under ship. Attack made by Lieutenant Commander
P.D. QUINN, Executive Officer. Position of attack -
Latitude 14°-12' N., Longitude 119°-34' E.

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1310 Felt two explosions caused by depth charges or bombs
     dropped by plane, although plane not observed.

     Underwater explosions heard at the following times:

     1313 - seven                     1330 - three
     1315 - three                     1331 - one
     1316 - two

     Source of explosions unknown. All but explosions at 1310
     were far away. Ship was unescorted and turn count never
     changed from 120 R.P.M.

1920 Surfaced.

0800 POSITION - Latitude 14°-13'-00" N.
               Longitude 119°-34'-00" E.

1200 POSITION - Latitude 14°-13'-30" N.
               Longitude 119°-34'-30" E.

2000 POSITION - Latitude 13°-59'-00" N.
               Longitude 119°-23'-00" E.

     Course made good 000° T., distance run 10
     miles.

     Fuel expended - 555 gallons.

     August 13

     Patrolling on surface.

0513 Submerged. Got the first quick glimpse of Mari-
     veles Lts., the first time since on station but it was
     as quickly covered by clouds.

     Surfaced at 1919. Set course for Last Apo Pass
     leaving Area in accordance with operation order.

1950 Sighted a bright white light, bearing put it
     around Subic Bay. Believe it was aircraft beacon.

0800 POSITION - Latitude 14°-12'-00" N.
               Longitude 119°-19'-00" E.

1200 POSITION - Latitude 14°-07'-30" N.
               Longitude 119°-39'-00" E.

2000 POSITION - Latitude 13°-59'-00" N.
               Longitude 119°-23'-00" E.

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Course made good 138° T., distance made good 10
miles.
Fuel expended - 555 gallons.
August 14
On surface leaving area. Visibility poor.
0513 Submerged South of Cape Calavite. Patrolling East
Apo Pass.
1912 Surfaced.
2044 Ambulong abeam to port, distance 3.5 miles. Set
course for Cuyo East Pass.
0800 POSITION - Latitude 12°-56'-00" N.
Longitude 120°-30'-00" E.
1200 POSITION - Latitude 12°-47'-00" N.
Longitude 120°-43'-30" E.
2000 POSITION - Latitude 12°-18'-00" N.
Longitude 120°-54'-15" E.

Course made good 142° T., distance made good 99
miles.
Fuel expended - 705 gallons.
August 15
Underway on surface.
0312 Maniquin Island light abeam, distance 5 miles.
Visibility poor, with showers and thunder and lightning
storms.
0510 Submerged in Cuyo East Pass following coast line
of Panay.
1245 Own course 190° T., sighted smoke on starboard
beam. Visibility excellent. Smoke could have been 15
miles away. Never sighted a ship but believe it was a
drow ahead. Believe maybe ships take departure from Ilo-
bulong and take a direct course for Zamboanga or Sibutu
and do not use Cuyo East Pass.
Surfaced at 1906.

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0800        POSITION - Latitude 11°-07'-30" N.
                       Longitude 121°-52'-15" E.

1200        POSITION - Latitude 10°-54'-30" N.
                       Longitude 121°-51'-30" E.

2000        POSITION - Latitude 10°-23'-20" N.
                       Longitude 121°-46'-00" E.

            Course made good 148° T., distance made good 132
miles.

            Fuel expended - 850 gallons.

            August 16

            Underway on surface heading for Sibutu Pass.

0530        Submerged.

1753        Our position Latitude 8°-08'-45" N., Longitude 120°-
            48'-20" E., sighted masts of a ship bearing 235° T., dis-
            tance about 8 miles. Came to a course 235°.

1757        Estimated target on about a course 015° so came to
            normal approach course 330° T. About 1800 determined ship
            to be an enemy destroyer of the (AKIZUKI) class.

            Sunset was at 1812 and about this time destroyer
            stopped or was just making steerage way. Continued approach
            until 1838 when about 6000 - 8000 yards when destroyer was
            no longer visible in periscope.

            It may have been a coincident but we had opened up
            with our radio at 2200 the night of the 15th and then
            having the destroyer stop within four to five miles of us.

            Surfaced at 2100 but did not see destroyer again.
            Underway on surface.

            Late afternoon of the 14th a great number of the
            crew complained of feeling sick. By now at least forty-
            percent are complaining. While only one or two are sick
            in bed the efficiency of the crew is definitely below
            par. Cause unknown. This is second time this patrol
            this has happened.

0800        POSITION - Latitude 8°-38'-00" N.
                       Longitude 122°-03'-30" E.

1200        POSITION - Latitude 8°-23'-40" N.
                       Longitude 120°-56'-00" E.

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2000 POSITION - Latitude 6°-04'-00" N.
Longitude 120°-45'-00" E.
Course made good 199° T., distance made good 161
miles.
Fuel expended - 1080 gallons.

August 17
Underway on surface.
0516 Submerged.
1235 Sighted "Doc Can" Island, distance eight miles.
1900 Surfaced.
2009 "Doc Can" abeam to port, distance three miles.
2328 Sighted submarine or small vessel broad on star-
board bow. Maneuvered to avoid. Entering Sibutu Pass.
2330 Sighted small boat about 200 yards one point on
port bow. Maneuvered to avoid. Believe boat to have
been a watcher, although he did not open fire with any
small arms.

0800 POSITION - Latitude 6°-09'-40" N.
Longitude 119°-36'-00" E.
1200 POSITION - Latitude 5°-58'-15" N.
Longitude 119°-47'-45" E.
2000 POSITION - Latitude 5°-48'-30" N.
Longitude 119°-50'-30" E.
Course made good 206° T., distance made good 160
miles.
Fuel expended - 1785 gallons.

August 18
Underway on surface in Sibutu Pass.
0040 Sibutu abeam to starboard, distance 11 miles.
0520 Submerged. Put gyro out for cleaning.
1120 Started gyro.

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1859 Surfaced. Underway for Makassar Strait.
0800 POSITION - Latitude 3°-42'-00" N.
         Longitude 119°-38'-00" E.
1200 POSITION - Latitude 3°-31'-20" N.
         Longitude 119°-37'-00" E.
2000 POSITION - Latitude 2°-58'-00" N.
         Longitude 119°-29'-05" E.

         Course made good 185° T., distance made good, 147
miles.
Fuel expended - 1195 gallons.

August 19
Underway on surface.
0527 Submerged. Patrolling along route Point Mangar-
         kalihat to Balik Papan, Borneo.
0829 Sighted enemy escorted passenger-cargo vessel,
         distance about 16,000 yards, with angle on bow of 90°
         port, unable to close for attack. Our position Latitude
         00°-50' N., Longitude 119°-10' E.
         Sighted numerous sailing vessels throughout the
day.
1859 Surfaced. Visibility good - first quarter of the
moon.
2000 Sighted a small patrol boat approaching from the
         West, distance about 6000 yards, coming in fast. Lati-
         tude 00°-07' N., Longitude 118°-56' E.
         Made quick dive and went to depth charge stations.
         Patrol vessel commenced depth charging at 2009. (Details
         in "8").
2219 As nothing had been heard on sound gear since
         diving at 2000, surfaced on course 090° T., and at 2221
         submerged on picking up patrol boat on starboard quarter,
         distance 2000 - 3000 yards. Was depth charged again at
         2232. Heard patrol boat by sound.

0800 POSITION - Latitude 0°-55'-30" N.
         Longitude 119°-16'-30" E.

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1200 POSITION - Latitude 0°-44'-50" N.
Longitude 119°-10'-00" E.

2000 POSITION - Latitude 0°-09'-00" N.
Longitude 118°-56'-00" E.

Course made good 189° T., distance made good 169
miles.
Fuel expended - 550 gallons.

August 20
At depth charge stations, depth 200 foot.

0020 Lost patrol vessel by sound.

0221 Surfaced on course 144° T., and at 0240 changed
course to 110° T., and stopped.

0243 Again sighted patrol boat on port quarter and sub-
merged. No depth charges were dropped at this time.

A careful survey of the situation was taken and
it looked like by securing all possible machinery we
would have battery power until 2300 this day. So decided
to make no further attempt to surface before sunrise at
0604. At sunrise came to periscope depth. Patrol
vessel was not in sight but a large sailing vessel was
sighted distance about 4 miles on course about 170° T.
Came to course 000° T.

0800 Had lost sailing vessel and as visibility was ex-
cellent and it was felt we could sight any air patrol
and submarine before being sighted decided to surface and
charge batteries. Surfaced at 0803. Two or three small
boats or objects were sighted on the horizon during
charging but none approached or came to close to us.

1109 Secured the charge and at 1109 sighted tops of a
mast which appeared to be a patrol vessel so submerged.
We now had about three-quarters of battery power so were
prepared if we were found by patrol vessels on surfacing
at night. Evidently they are patrolling Makassar Area
very thoroughly as we were not at the entrance to any
port when first sighted.

Surfaced at 1902 and headed for Cape William.

0800 POSITION - Latitude 0°-17'-00" S.
Longitude 119°-11'-00" E.

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1200 POSITION - Latitude 0°-28'-00" S.
Longitude 119°-13'-00" E.
2000 POSITION - Latitude 0°-51'-00" S.
Longitude 118°-46'-05" E.
Course made good 171° T., distance made good 77
miles.
Fuel expended - 1130 gallons.
August 21
Underway on surface approaching Cape William.
0210 Cape William sighted. Three sailing vessels were
sighted and one sailing vessel was passed close aboard
(50 yards) sails down and people on deck frantically
trying to get a coal or charcoal fire on deck going.
0513 Submerged South of Cape William. No patrol
vessels were sighted in this vicinity where it was ex-
pected the activity would be very strong.
Surfaced at 1900 and set course for Lombok via
Sibbalds' Bank. Considered going via Makassar City
but was not sure if this was patrolled by another sub-
marine so chose the direct route.
Visibility has been excellent.
0800 POSITION - Latitude 3°-20'-30" S.
Longitude 118°-34'-30" E.
1200 POSITION - Latitude 3°-36'-30" S.
Longitude 118°-32'-30" E.
2000 POSITION - Latitude 4°-07'-00" S.
Longitude 118°-13'-00" E.
Course made good 194° T., distance made good 193
miles.
Fuel expended - 1710 gallons.
August 22
Underway on surface for Lombok Strait.
Submerged at 0615 and surfaced at 1910.
Sighted various fishing vessels during the day.

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On surfacing continued towards Lombok Str it.

0800 POSITION - Latitude 6°-03'-00" S.
Longitude 116°-43'-05" E.

1200 POSITION - Latitude 6°-15'-00" S.
Longitude 116°-44'-15" E.

2000 POSITION - Latitude 6°-38'-00" S.
Longitude 116°-52'-30" E.

Course made good 214° T., distance made good 188
miles.

Fuel expended - 1455 gallons.

August 23

Underway on surface for Lombok Strait.

0031 Sighted four masts in the bright moonlight. Had
hopes it was a convoy but on running towards and clos-
ing found the masts to be from four two masted schoon-
ers.

0134 Resumed base course.

Submerged thirty miles North of Lombok Strait
at 0550 and surfaced at 1907.

Set course to pass through Lombok.

No navigational lights were observed but there
were lights on both Bali and Lombok, evidently from
small villages.

0800 POSITION - Latitude 7°-54'-05" S.
Longitude 116°-21'-30" E.

1200 POSITION - Latitude 7°-54'-30" S.
Longitude 116°-12'-00" E.

2000 POSITION - Latitude 7°-59'-00" S.
Longitude 116°-02'-40" E.

Course made good 199° T., distance made good 104
miles.

Fuel expended - 1185 gallons.

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August 24
0004 Left tangent of Nusa Besar abeam to starboard,
     distance four miles. Set course 199° T., for Fremantle,
     Australia.

     Submerged at 0633 and surfaced at 1902.

0800 POSITION - Latitude 10°-20'-00" S.
               Longitude 115°-12'-00" E.

1200 POSITION - Latitude 10°-35'-00" S.
               Longitude 115°-10'-00" E.

2000 POSITION - Latitude 10°-52'-00" S.
               Longitude 114°-44'-00" E.

     Course made good 202° T., distance made good 171
miles.

     Fuel expended - 1975 gallons.

August 25
     Underway on surface. As we were over 150 miles
     South of the Barrier at dawn commenced surface running
     night and day.

0800 POSITION - Latitude 13°-02'-00" S.
               Longitude 113°-45'-00" E.

1200 POSITION - Latitude 13°-49'-00" S.
               Longitude 113°-31'-00" E.

2000 POSITION - Latitude 14°-25'-00" S.
               Longitude 113°-15'-00" E.

     Course made good 205° T., distance made good 224
miles.

     Fuel expended - 3860 gallons.

August 26
     Underway on surface.

0800 POSITION - Latitude 17°-44'-00" S.
               Longitude 112°-28'-00" E.

1200 POSITION - Latitude 18°-33'-00" S.
               Longitude 112°-14'-00" E.

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2000 POSITION - Latitude 20°-12'-00" S.
  Longitude 111°-45'-00" E.
Course made good 195° T. distance made good 294
miles.
Fuel expended - 3790 gallons.

August 27
Underway on surface.
0622 Made a trim dive and surfaced at 0657.
0800 POSITION - Latitude 22°-17'-00" S.
  Longitude 111°-53'-00" E.
1200 POSITION - Latitude 23°-01'-00" S.
  Longitude 111°-57'-00" E.
2000 POSITION - Latitude 24°-16'-00" S.
  Longitude 111°-58'-00" E.
Course made good 183° T. distance made good 253
miles.
Fuel expended - 3360 gallons.

August 28
Underway on surface. Seas rough, ran only
average about 8 knots on one engine.
0800 POSITION - Latitude 26°-20'-00" S.
  Longitude 112°-22'-00" E.
1200 POSITION - Latitude 26°-53'-00" S.
  Longitude 112°-28'-00" E.
2000 POSITION - Latitude 28°-18'-00" S.
  Longitude 112°-37'-00" E.
Course made good 175° T. distance made good 234
miles.
Fuel expended - 2240 gallons.

August 29
Underway on surface.

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0800 POSITION - Latitude 29-39-00" S.
       Longitude 113-12'-00".

1200 POSITION - Latitude 30-12-00 S.
       Longitude 113-38-00 E.

2000 POSITION - Latitude 31-15-00 S.
       Longitude 114-31-00 E.

       Course made good 159° T., distance made good 214
miles.

       Fuel expended - 3,000 gallons.

August [HANDWRITTEN: 30]

       Underway on surface.

       Exchanged calls with U.S.S. ISABEL.

0345
0705   Secured alongside U.S.S. TRINITY for fueling.

       Fuel expended - 510 gallons.

[HANDWRITTEN: -30-/41]
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2. Weather.
Reference: U.S. Coast Pilot, Philippine Islands, Part I.

The weather in general in the area was in accordance
with reference. The winds were found to be from South West-
erly to West South Westerly direction. The sky was generally
overcast with intermittent heavy showers. Very few complete
sets of star sights were able to be obtained. A moderate sea to
rather rough sea was encountered in the area. With the excep-
tion of two or three days, the visibility was always reduced
either wholly or partially.

Generally good weather and visibility prevailed
during the three days spent patrolling the Northern part of the
area.

The weather enroute both ways conformed to weather
described in existing publications.

3. Tidal Information.

Currents were found to be normal except in the
following instances:

LOCATION | DATE | SPEED | DIRECTION
| | | OF SET
20 to 30 miles South of | 14-15 July | 2 knots | Southwest
Lombok Strait | | |

Lombok Strait | 15 July | 5 knots | South
| | Appr. |

60 miles Southwest of Hook | 18 July | 1.5 knots | South
Mandar, Celebes | | |

8 miles West of Cape William | 19 July | 2 knots | South
Celebes | | |

During passage from Makas- | 21 July | 1/2 knot | North
sar Strait to Sibutu Passage | | |

Latitude 18°-40' N., | 4-5 August | 1 - 3/4 | West
Longitude 119°-30' E. | | knots |

Makassar Strait | 21 August | 1½ knots | South

Latitude 5°-00' S., | 22 August | 1 knot | Southwest
Longitude 117°-00' E. | | |

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4. Navigational Aids.
The only navigational aid observed was Cabra Island
light burning on the night of 27-28 July 1942.

5. Enemy Vessels Sighted:

CONTACT NO. 1. See paragraph 7, attack 1.

CONTACT NO. 2.
On August 3, 1942, conducting submerged patrol in
Latitude 18°-55' N., Longitude 119°-36' E. (62 miles bearing
292° T., from Cape Bojeador Light, Luzon, P.I.).
At 0704 sighted an enemy seaplane tender or mino-
layer of about 4000 tons displacement bearing 062° T., distance
10,000 yards; angle on the bow about 30 starboard. The target
was not escorted and was steaming on steady course 210° T. His
speed was determined to be sixteen knots. Masthead height was
100 feet. Sound operators made a propellor count of 140 R.P.M.
Sound conditions were excellent.
Immediately started submerged approach but was un-
able to close to less than 3500 yards. Did not fire because of
excessive torpedo run. Broke off the attack at 0736 and watch-
ed the enemy out of sight.
The periscope was used throughout the attack.

CONTACT NO. 3.
On August 4, 1942, conducting submerged patrol in
Latitude 18°-55' N., Longitude 119°-36' E. (62 miles bearing
292° T., from Cape Bojeador, Luzon, P.I.).
At 0803 sighted an enemy oil tanker of 10,000 tons
displacement bearing 090° T., at a range of about 15,000
yards. The target was unescorted and was zig zagging radic-
ally on apparent base course 025° T. His speed was determined
to be thirteen knots. Masthead height about 110 feet.
Immediately commenced submerged torpedo approach.
At 0916, the target having got by at a range of
9000 yards, broke off the attack. Did not fire because we
could not get within range.
Sound conditions were excellent.
The periscope was used throughout the approach and
the target was watched out of sight.

- 32 -
S E C R E T

— page 73 —
[STAMP: CONFIDENT]
[HANDWRITTEN: SECRET]
U.S.S. GRAMPUS WAR DIARY

CONTACT NO. 4. See paragraph No. 7, attack No. 2.

CONTACT NO. 5.
On August 16, 1942, while conducting submerged
patrol in Latitude 80-04' N., Longitude 120-45' E. (Sulu Sea):

At 1733 sighted an enemy destroyer of the AKIZUKI
class bearing 235° T., distance 8 miles, on approximate course
015°. The angle on the bow was about 70° starboard. The
targets speed was estimated to be about 3 knots.

Immediately came to the normal approach course and
started submerged torpedo approach. Came within 6000 yards of
the target when darkness fell and the target could not be seen
through the periscope. At this time the sound operators pick-
ed up the target on a run, but his screws to be turning very
very slowly. No propellor count was obtained.

In view of the targets very slow speed the Command-
ing Officer concluded that the target had slowed to sunset in
order to listen for submarines who were about to surface for
the night. Furthermore we had made a radio transmission just
twenty hours previously, and it is thought that there is no
then a bare possibility that he was expecting us.

In view of the targets apparent watchfulness, the
excellent sound conditions and the type of target, the Command-
ing Officer considered a night surface approach to be im-
practicable. As a consequence the approach was broken off at
1900 and the submarine retired on a southerly course until
2100 when she was surfaced in dim moonlight. The target was
not then in sight.

CONTACT NO. 6.
On August 19, 1942, conducting submerged patrol
in Latitude 00°-54' N., Longitude 119°-16.5" E. (Northern
entrance to Makassar Strait).

At 0829 sighted an enemy cargo-passenger vessel
of about 8000 tons bearing 296° T., range 16,000 yards; angle
on the bow about 80° port, on apparent course 185° T. Targets
masthead height estimated to be 110 feet; speed about 15
knots.

The target was escorted by a patrol vessel which
steamed directly ahead of the target at a distance from him
of about 3000 yards. Neither the target nor the screen was
zig zagging.

Immediately came to course 205° T., and commenced
submerged approach.

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— page 74 —
[CLASSIFICATION: CONFIDENTIAL]
U.S.S. GRAMPUS - WAR DIARY

At 0930 having been unable to close the target,
broke off the approach.

6. Description of Aircraft Sighted

DATE           :TIME: POSIT                                :

9 July, 1942:1435:18°-00' S.:PBY patrol plane sighted 330 T.
            :    :112°-55' E.:distance 7 miles. Crossed bow 1
            :    :           :mile ahead, on course 105° T.
            :    :           :elevation 20°. Exchanged signals.
            :    :           :Friendly.

11 July, 1942:0735:21°-42' S.:PBY patrol plane sighted 170° T.
            :    :114°-06' E.:distance 7 miles, on course 335° T.
            :    :           :T. elevation 40°. Exchanged
            :    :           :signals. Friendly.

7. Particulars of Attack.

ATTACK NO. 1 - CONTACT NO. 1.

LOCATION: Latitude 3°-50' S., Longitude 119°-10' E. (just
          South of Point Mandar, Celebes).

TIME:     0740 (ZT -8) July 18, 1942.

TYPE OF TARGET: Tanker or small ore carrier of about 6000 tons.
          Bridge and superstructure aft, two masts estimated at
          about 100 feet. Three goal posts between those two masts.
          Length of target about 450 feet, estimated draft 17 feet.
          143 R.P.M. by propellor count.

SCREEN:   One corvette type escort steaming on same course
          as target and about 1000 yards ahead. Neither target or
          screen was zig-zagging.

RANGE AT SIGHTING: 11,000 yards bearing 306° relative. Angle
          on bow 30° starboard.

ATTACK DATA:
          Attack began at 0757
          Attack ended at 0850
          Torpedoes fired - 3 (light war heads)
          Firing interval - 15 seconds and 19 seconds
          Gyro angle - 7° Right 8° Right 8° Right
          Point of Aim - MOT

- 34 -
[CLASSIFICATION: SECRET]

— page 75 —
[HANDWRITTEN: CONFIDENTIAL]
SECRET
U.S.S. S. [UNCLEAR: 31]

- WAR DIARY

Spread Angle - 1½° R ½° R ½° L (Set on T.D.C.)
Track Angles - 129° S 131° S 133° S
Torpedoes set to run at 6 feet
Estimated speed of target - 9¼ knots
Firing range - 2200 yards
Torpedo run - 2600 yards
Hits - none

Attack was made at periscope depth, watching the
target during firing. Observed bearing by periscope
checked with generated computer bearing.

Sound operators were in contact with both target
and escort for ten minutes before firing. Sound opera-
tors heard all three torpedoes running.

SUMMARY OF ATTACK: Immediately upon sighting the
submarine came to the normal approach course in an attempt
to close to a favorable range. The periscope was up
considerably. Seventeen observations were taken before
firing. When at a range of about 3600 yards the Com-
manding Officer realized that he could not close any fur-
ther so he changed course to the left for a more favor-
able track angle.

The only indication given by the target that he
had seen the torpedoes was continuous blowing of his
whistle. Steam could be seen escaping from the whistle.

The after half of the target was obscured by a
light blue smoke two minutes and 19 seconds after the
first torpedo was fired. The Commanding Officer believes
that this smoke came from the torpedo exhaust.

No explosions were heard in the Conning Tower or
observed through the periscope. Personnel in the Control
Room, After Battery and After Torpedo Room all state that
they heard two explosions about one minute after the
last torpedo was fired.

About two minutes after the last torpedo was fired
the escort was seen to turn toward the submarine. The
submarine submerged to 200 feet and rigged for depth
charge attack. One minute later two depth charges were
dropped at a considerable distance from the submarine. The
sound operators could hear the escort patrolling the
area for about an hour thereafter.

Both the target and escort were out of sight when
the submarine came to periscope depth one hour and 37
minutes after the depth charges were dropped.

- 35 -
SECRET

— page 76 —
[STAMP: SECRET]
[STAMP: CONFIDENTIAL]
U.S.S. GRILLUS - WAR DIARY

ATTACK NO. 2 - CONTACT NO. 4.

On August 12 while conducting submerged patrol in
Latitude 14°-12' N., Longitude 119°-34' E. (33 miles bear-
ing 304° T., from Cabra Island Light, Lubang, P.I.),
1120 (Zone -8) sighted an enemy cargo vessel of about
7000 tons displacement bearing 272° T., on opposite course.
Range at time of sighting was 15,000 yards.

The target was a three island steamer with one
stack amidships. Masthead height was about 100 feet,
depth estimated 13 - 15 feet. Length 350 feet. Propeller
speed by count was 120 R.P.M. Apparent target speed was
11 knots. The target was zig zagging at very long inter-
vals. She was unescorted and had no visible deck or armament.

ATTACK DATA:
Attack began at 1120
Attack ended at 1306
Torpedoes fired - 3 (2 small, one large head)
Firing interval - 10 seconds
Gyro Angles - 358°, 358°, 002°
Point of Aim - MOT
Spread Angle - 3° L, 0°, 3° R (applied in T.D.C.)
Track Angles - 137°, 140°, 143° Port
Torpedoes set to run at 4 feet
Estimated speed of target 11 knots
Firing range - 1100 yards
Torpedo run - 1600 yards
Hits - none

Attack was made at periscope depth, watching the
target during firing. Observed bearing by periscope
checked with generated computer bearing.

The second torpedo of the spread was seen to pass
directly under the target, just abaft the stack.

Sound operators were in contact with the target
for fifteen minutes before firing. Sound operators
heard all three torpedoes running.

SUMMARY OF ATTACK: Immediately upon sighting the target the
submarine came to the normal approach course. The peris-
cope was used continually.

The target was zig zagging at long intervals, it
was possibly using a slowly changing sine curve zig.
Only one apparent course change was made by the target -
a change of about 40° to the left - however, just before
firing the approach officer gave an angle on the bow of
90° Port. This would indicate a 20° zig to the left.
This was not applied in the Data Computer because the

- 36 -
[STAMP: SECRET]

— page 77 —
[STAMP: CONFIDENTIAL]
SECRET
U.S.S. ORPHEUS - WAR DIARY

word had been given to fire. This zig-zag made no difference
in the firing bearing. Observed bearing of the target was
being set on the computer continuously while firing.

The target showed absolutely no signs of having
been hit by any of the torpedo wakes. About two min-
utes after the torpedoes were fired, four explosions were
heard in quick succession. These might have been shell
explosions or explosions from aircraft bombs. The tar-
get was not observed to fire any guns; neither were there
any planes observed. Nine more of these explosions were
heard about three minutes later, and nine more one minute
later.

8. Enemy A/S Measures.

18th July after attack on enemy merchant ship
either ship or escort dropped two depth charges four minutes
after last torpedo was fired. Screws were heard searching and
twenty-four minutes after last torpedo was fired two explosions
were heard far off. Evasive tactics used were deep submergence
and silent running.

12th August after attack on unescorted cargo vessel
about two minutes after torpedoes were fired two explosions in
quick succession were heard. Was observing target by periscope
but did not see any gun fire so explosions were possibly two
bombs from aircraft bombs. Nine more explosions were heard three
minutes later and nine more about one minute later. These ex-
plosions were like internal explosions in the cargo ship
but it is certain she was not hit by a torpedo. Source of
explosions unknown as no planes were observed nor any gun fire
observed from enemy vessel.

The night of the 19th - 20th August while steaming
on the surface, seas smooth, full quarter moon in Latitude
00°-07' N., Longitude 118°-56' E., a patrol vessel was sighted,
range about 6000 yards, coming towards submarine at high speed.
Believe patrol vessel of standard corvette type, with no
stack, although never definitely got a side view of it. Sub-
merged to 190 - 200 feet at 2000 and ran silent.

Depth charges were dropped at the following times:

TIME      NO. OF CHARGES      TIME      NO. OF CHARGES
2009      1                   2013-30   1
2009-10   1                   2015-30   1
2009-30   1                   2016-10   1
2010-30   1                   2016-30   1
2011-40   1                   2023-40   1
2012-30   1                   2024-40   1
                              2025-45   1

- 37 -
[STAMP: SECRET]

— page 78 —
[STAMP: SECRET]
[STAMP: U.S.S. GRAMPUS]
[STAMP: CONFIDENTIAL]
- WAR DIARY
No charges were very close and no damage was sus-
tained.

Evasive tactics used were deep submergence and
silent running. Target was never heard by sound
as diving until 2100, as depth charges were
dropped at a distance, then made a 90° change of course and surfaced
at 2219.

At 2221 on sighting patrol vessel
submerged again to deep submergence and silent running on parallel course.
This time the following depth charges were felt:

| TIME | NO. OF CHARGES | TIME | NO. OF CHARGES |
|---|---|---|---|
| 2232-50 | 1 | 2237-40 | 1 |
| 2234-50 | 1 | 2242-00 | 1 |
| 2235-50 | 1 | 2247-30 | 1 |
| 2236-40 | 1 | 2251-50 | 1 |

This time target was followed by a submarine
was maneuvered at slow speed to keep bearing of patrol vessel
changing. Patrol would stop to listen and then speed up. No
pinging was heard and no charges were dropped. Patrol vessel was
heard at intervals going ahead and then stopping until 0020
when she was heard on a steady bearing getting further away.

Surfaced again at 0221 and patrol vessel was sight-
ed at 0243 at which time submerged. No charges were dropped,
as he was evidently out of them.

This patrol vessel was evidently very good at
listening, but poor on attack as none of the charges were
close. We could not seem to lose him by deep submergence and
silent running. It is known that the GRAMPUS motors are very
noisy, so it is doubtful if silent running has much effect.

9. Major Defects.
None.

10. Remarks.
(a) Radio Reception.
Except for July 9, 10, and 11, when close to
Fremantle, reception of VLØ was good. Without
appreciable enemy interference or jamming. On the days
mentioned, signal strength was low, frequently unreceiv-
able, from sunset until two hours afterworks on all
frequencies. Most reception was on 9250 kcs.

- 38 -
[STAMP: SECRET]

— page 79 —
[STAMP: CONFIDENTIAL]
SECRET
U.S.S. GRILPUS - WAR DIARY

All serials were received except number 51. This,
together with serials 50 and 52 were originally trans-
mitted on the night of August 19-20, at which time this
vessel was submerged. Serials 50 and 52 were repeated
and received the following evening, but serial 51 was
not repeated.

Bolonnen (VIB and VIP) was first heard strength
five, surface when South of Latitude 6° South. In-
ability to hear North of this is believed due to in-
ability to calibrate receiver by means of the IK oscilla-
tor on this low frequency.

(b) Sound Conditions.

Sound conditions in general were excellent through-
out the patrol except for a certain period each night
usually from the hours of 1830 until about 2100. At this
time fish and bottom noises were notably loud and es-
pecially so in the area from Manila Bay to Lingayen
Gulf. In this area these noises would commence between
1830 and 1840 each night and at times they were loud
enough to effectively block a signal generated by
screws. In certain cases this noise would be of equal
audible intensity around the 360 degrees of the dial
and at other times they would only cover an area of
40 to 100 degrees of the dial.

On the 19th of August when south of Point Manck Lihat,
in Maka Straits, when we passed 120 feet, going
down to 190 - 200 feet, all normal noises faded out.
The trim pump which can normally be heard from 090 to
270° relative to the sound head, was then only when
the sound head was faced directly into the hull. As
we approached 100 feet on the way up all noises became
normal again.

(c) Habitability.

Throughout the submerged patrol of forty-two
days the boat was quite comfortable in all compartments
with the exception of the Control Room and Conning
Tower. The air conditioning plant functioned excel-
lently and water supplied from the condensers was used
for clothes washing, cleaning purposes, etc.

(d) Health.

The health of the crew on this patrol was in no
way comparable to the previous runs. This is believed to
be a general decrease in natural resistance and a
noticeable lowering of vitality.

- 39 -
[STAMP: SECRET]

— page 80 —
[STAMP: SECRET]
CONFIDENTIAL
U.S.S. GRAPUS - WAR DIARY

One day after departure there was a small "epidemic"
of "catarrhal fever" which involved approximately seventy
percent of the crew. Personnel responded to treatment
and were generally recovered in about three days.

On July 22nd and again on August 14th, there ap-
peared another "epidemic" the outward symptoms of which,
appeared to be food poisoning. Personnel complained
of nausea, loss of appetite, vomiting, and in some cases
abdominal cramps. Cause of the above has not been deter-
mined because only about half the personnel were affect-
ed.

This complaint lasted five days, each time, and
during this time watches were stood by those affected,
but their efficiency was materially lowered.

(c) During the patrol a total of 668.2 hours
were spent on the surface and 595.3 hours submerged. The
average consumption of potable water per day was 434
gallons and of battery water 55 gallons. Total potable
water distilled on board was 19,800 gallons and battery
water 2,550 gallons. The total fuel oil expended was
70,200 gallons. The total distance covered by pitometer
log was 3393.4 miles.

Description of Routes Followed.

The route followed was as follows: Departed from
Fremantle, Australia and followed the bombing restriction lane
to abeam of Northwest Cape, Australia. Thence to Exmouth
Gulf; thence to Lombok Strait, thence to Hook Mandar, Celebes,
passing to the westward of Sibbalds' bank; thence to Cape
Willian staying in the middle of the channel; thence to
Sibutu Passage following the direct route; thence to Apo
Point, Panay, P.I.; thence to Apo East Pass following the
coast line of Panay and Mindoro at distances of 3 to 10
miles and attempting to cross possible shipping routes.
Thence to Cape Calavite; thence to point 61 miles West
about 291° T. from Cape Bojendor, thence to 15 miles West
of Cape Bolinao thence to a point 6 miles North of Loland
Island; thence to a point about 25 to 30 miles Northwest of
Cabra Island Light; thence to Cape Calavite, thence to Apo
East Pass, thence to Iloilo Point, Panay, thence to Sibutu
Passage; thence to Makassar Strait passing about 10 miles to
East of Tana Jampeah; thence to Cape Willian; thence to
Hook Mandar; thence to Lombok Strait passing to West of
Sibbalds' bank; thence to Fremantle.

- 40 -
[STAMP: SECRET]

— page 81 —
SUBMARINE DIVISION SIXTY-ONE.
Care of Fleet Post Office
San Francisco, California
4 September 1942

FB5-61/A16-3
Serial (00-4)
CONFIDENTIAL
S-E-C-R-E-T

10 01346

FIRST ENDORSEMENT to
C.O. GRAMPUS Ltr.A16-3
Serial 001 of 8/30/42

From: The Commander Submarine Division SIXTY-ONE.
To : The Commander Task Force FIFTY-ONE.
Via : (1) The Commander Submarine Squadron SIX.
(2) The Commander Submarines, SOUTH WEST PACIFIC.
Subject: U.S.S. GRAMPUS - [HANDWRITTEN: THIRD WAR PATROL] War Diary for the period July
8, 1942 to August 30, 1942.

1. In commenting on the subject report the follow-
ing points are considered to be pertinent and worthy of special
mention.

(A) MATERIAL
Material performance of the GRAMPUS during this
patrol was excellent requiring only minor repair work during
the current refit period. This splendid performance is
attributed to daily and weekly upkeep routines followed by
the ship's force during the entire patrol period.

(B) HEALTH AND MORALE
Health was far below the average during this
patrol, both for this particular submarine and the other
units of this Division. An investigation is being con-
ducted as to the probable causes for the recurrent cases
of food or possibly water poisoning. Morale appeared high
in spite of the aforementioned unhealthiness encountered
and the absence of successful attacks against the enemy.

(C) OPERATIONS
It is unfortunate that contacts were not followed
up and aggressive attempts made to arrive at a favorable
firing position. The Commanding Officer's reasoning in con-
ducting the patrol off LINGAYEN GULF instead of MANILA BAY
is not understood. In the opinion of the Division Commander
this particular patrol could have been more successful if the
area of operations had been shifted to the approaches to
MANILA BAY in accordance with specific orders.

[SIGNATURE: C. D. Edmunds]
C. D. EDMUNDS.

Copy to:
C.O. GRAMPUS.

— page 82 —
FC5-6/A16-3
Serial # 04
[STAMP: CONFIDENTIAL]
[STAMP: SECRET]

SECOND ENDORSEMENT to
C.O.GRAMPUS ltr A16-3
Serial 001 of 8/30/42

SUBMARINE SQUADRON SIX
U.S.S. TAUTOG, Flagship.

(S)/OL
10 01346

Care of Fleet Post Office,
San Francisco, California,
September 4, 1942.

From: The Commander Submarine Squadron SIX.
To : The Commander Task Force FIFTY-ONE.
Via : The Commander Submarines, SOUTHWEST PACIFIC.
Subject: U.S.S. GRAMPUS - War Diary for the period July 8, 1942
[HANDWRITTEN: THIRD WAR PATROL]
to August 30, 1942.

1. This patrol covered a period of fifty-four days of which forty
were spent north of the Malay Barrier.

2. Material performance during this patrol was excellent and only
minor routine work will be required during the refit period. It is evident
from records maintained by operating personnel that the routine upkeep has been
strictly adhered to during the patrol with self evident good results.

3. Health and endurance of personnel were considerably below par
on this patrol. A large number of cases of catarrhal fever appeared at the
very beginning of the patrol and on two other occasions there were large numbers
of cases of abdominal disorders which exhibited the symptoms of food poisoning.

4. The GRAMPUS was ordered to pay particular attention to the Manila
Bay area. The Commanding Officer, however, elected to patrol the vicinity of
Lingayen Gulf instead, giving as his reason for this choice, the fact that the
full moon then shining, disclosed his presence so clearly to the patrol boats
in the vicinity of Manila Bay that it was impossible to charge batteries there.
After patrolling for several days off Cape Bolinao the GRAMPUS proceeded to the
vicinity of Corregidor, but concluded upon arrival that weather conditions were
too unfavorable to warrant remaining there, and left the area on a westerly
course hoping to find more favorable conditions. This he did in an area about
sixty miles to the westward of the entrance to Manila Bay and found one target
which was unsuccessfully attacked.

It is believed that this patrol might have been more productive
had the GRAMPUS chosen to accept the adverse conditions in the Manila Bay area
and conducted his patrol there.

- 1 -

— page 83 —
FC5-6/A16-3
Serial # 04
[STAMP: CONFIDENTIAL]
[STAMP: SECRETIAL]

SUBMARINE SQUADRON SIX
U.S.S. TAUTOG, Flagship.

(S)/OL
10 01346

SECOND ENDORSEMENT to
C.O.GRAMPUS ltr A16-3
Serial 001 of 8/30/42

Care of Fleet Post Office,
San Francisco, California,
September 4, 1942.

[HANDWRITTEN: THIRD WAR PATROL]
Subject: U.S.S. GRAMPUS - War Diary for the period July 8, 1942
to August 30, 1942. (Continued)

5. Of six contacts reported only two attacks were made; approaches
on the others were broken off because the range could not be closed sufficiently
while submerged for an attack. In no case was an attempt made to gain a firing
position by using high speed on the surface. Had this been done attacks might
have been made on some of the targets that escaped.

6. Numerous contacts were made on this patrol with small patrol
vessels, fishing vessels, sailing vessels and others of an unidentified nature.
Where possible, enemy craft of all kinds must be vigorously attacked. There
appears to have been no reason why some of the above craft and particularly the
small power boat sighted off Cape Bolinac on July 30 were not destroyed.

[SIGNATURE: A. R. McCann]
A. R. McCANN.

- 2 -

— page 84 —
Reg. No. [HANDWRITTEN: 444]
R.S. No. [HANDWRITTEN: 10 01346]

SUBMARINES, SOUTHWEST PACIFIC
U.S.S. SARGO (SS188) FLAGSHIP

September 10, 1942.

SSWP/A16-3

Serial S-0045

CONFIDENTIAL

THIRD ENDORSEMENT to
CO GRAMPUS Secret ltr.
A16-3 Serial 001 of 8/30/42.

From: The Commander Submarines, SOUTHWEST PACIFIC.
To : The Commander-in-Chief, U. S. FLEET.
Subject: U.S.S. GRAMPUS - [HANDWRITTEN: THIRD WAR PATROL] War Diary for the period July 8,
1942 to August 30, 1942. [HANDWRITTEN: 3rd W.P.]

1. Forwarded.

2. The remarks made by Commander Submarine Squadron Six
and Commander Submarine Division Sixty One are generally concurred
in. This patrol of the GRAMPUS was not conducted in a sufficiently
aggressive manner.

3. Submarines of this Force have now been ordered to
destroy sampans with JAPANESE flags or characters displayed when-
ever practicable by gunfire. It is believed that in addition to
fishing these vessels are used as light ships, aircraft rescue
vessels and in anti-submarine work.

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

DISTRIBUTION
COMINCH (3)
COMSUBSPAC (5)
COMSUBSLANT (4)
COMSOUWESPAC (1)
COMTASKFOR-51 (1)
COMSUBRON-2 (2)
COMSUBRON-6 (2)
COMSUBRON-5 (2)
S/M SCHOOL, N.L. (4)
S/M DIV. COM. (1)
EACH S/M BASING W.A. (1)

[STAMP: FILMED]

[STAMP: CLASSIFICATION THIS CORRESPONDENCE
CHANGED TO: [HANDWRITTEN: Confidential]
AUTHORITY: [HANDWRITTEN: F05]
DATE: [HANDWRITTEN: 10/20/42]]

[STAMP: COMMANDER IN CHIEF
U.S. FLEET
RECEIVED
1942 OCT 20 16 27]

— page 86 —
[HANDWRITTEN: 1ST COPY]

A16-3/SS207
Serial 0004

S-E-C-R-E-T

From:
To :

Subject:

Reference:

Enclosure:

U.S.S. GRAMPUS
Care of Fleet Post Office,
San Francisco, California,
November 23, 1942.

dn

The Commanding Officer.
The Commander Task Force Forty-two.

U.S.S. GRAMPUS (SS207) - Report of Fourth War
Patrol - August 30 to November 23, 1942.

(a) Comsubsowespac Conf ltr FF6-4/A16-3 Ser
0150 of June 27, 1942.

(A) U.S.S. GRAMPUS Report of Fourth War Patrol.

1. In accordance with reference, the report of
the fourth war patrol conducted during the period August 30,
1942, to November 23, 1942, is forwarded herewith as enclo-
sure (A).

[SIGNATURE: J. R. CRAIG.]

[HANDWRITTEN: 44839]

— page 87 —
S E C R E T
U.S.S. GRAMPUS

RESUME OF OPERATIONS, U.S.S. GRAMPUS, PRIOR TO START OF FOURTH
WAR PATROL.

1. The U.S.S. GRAMPUS arrived Fremantle, W.A., on Aug-
ust 30, 1942, upon completion of her third patrol. After fueling
and taking on board a limited amount of provisions she departed
the same night for Albany, W.A., for refit, arriving September
1, 1942. During the period September 1 to September 15 refit
was conducted by the relief crew. During the period September
15 to September 23 the regular crew completed refit, test of all
material and loaded provisions. On September 23, 1942, Lieuten-
ant Commander J.R. CRAIG, U.S. Navy, relieved Lieutenant Com-
mander E.S. HUTCHINSON, U.S. Navy, of command in accordance with
Commander SOUTHWEST PACIFIC orders. All but 12 torpedoes were
removed in accordance with orders received from Commander Sub-
marines, SOUTHWEST PACIFIC. On September 24 trim and test dives
were conducted in Princess Royal Harbor.

U.S.S. GRAMPUS - FOURTH PATROL - NARRATIVE

September 25, 1942 - 1st Day.

In accordance with verbal instructions of Commander
Submarine Division SIXTY ONE this vessel was prepared for
passage from Albany, W.A., to Brisbane. All fuel, ready
torpedoes and four torpedoes without heads were loaded.

1630 (H) Underway in company with U.S.S. GRAYBACK and U.S.S.
CUDGEON. Commander Submarine Division SIXTY ONE in U.S.S.
GRAYBACK. Proceeding out of Albany swept channel.
1900 (H) Set course 100° T., for Bass Strait at standard
speed 15 knots in accordance with signal. Formed line of
bearing interval 2000 yards, U.S.S. GRAYBACK guide, U.S.S.
GRAMPUS on right flank, U.S.S. CUDGEON on left flank.
2000 (H) POSITION:- Lat. 35 - 27 S.,
Long. 118 - 25 E.
Miles Steamed - 102 Fuel Used - 1380 gallons.

September 26, 1942 - 2nd Day.

1000 (H) Made training dive.
1025 (H) Surfaced. Resumed course and speed.

POSITIONS:-

0800 (H) | 1200 (H) | 2000 (H)
Lat. 36 - 08.8 S. | 36 - 17 S., | 36 - 34.2 S.,
Long. 122 - 02.1 E. | 122 - 33 E. | 125 - 38.5 E.

Miles Steamed - 359.5 Fuel Used - 4650 gallons.

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September 27, 1942 - 3rd Day.

0200 (H) Changed to Zone -9 (I).

POSITIONS:

0800 (I)                 1200 (I)                 2000 (I)

Lat. 37 - 03.4 S.        37 - 17.9 S.             37 - 49.4 S.
Long. 129 - 06.2 E.      130 - 19.8 E.            132 - 55.5 E.

Miles Steamed - 348.1    Fuel Used - 4475 gallons.

September 28, 1942 - 4th Day.

1400 (I) Made training dive.
1430 (I) Surfaced.

POSITIONS:

0800 (I)                 1200 (I)                 2000 (I)

Lat. 38 - 33.0 S:        38 - 43.0 S:             39 - 00.7 S.
Long. 136 - 47.5 E:      138 - 05.0 E:            140 - 28.6 E.

Miles Steamed - 359.4    Fuel Used - 4700 gallons.

September 29, 1942 - 5th Day.

0000 (I) Formed column in accordance with signal, taking
         station as second ship in column.
0700 (I) Changed course to 092° T., on signal. Entered Bass
         Strait.
0800 (I) Set clocks ahead to Zone (-10) time (K).
1400 (K) Sighted ship bearing 100° T., later identified as
         H.M.A.S. HANDORARA. Sighting #1.
1511 (K) Southeast Point Light abeam to port, distant 2
         miles.
1730 (K) Changed course to 090° T., and took station 2000
         yards on starboard beam of U.S.S. GRAYBACK on signal.

POSITIONS:

0800 (I)                 1200 (K)                 2000 (K)

Lat. 39 - 11.0 S:        39 - 12.6 S:             39 - 00.0 S:
Long. 144 - 16.0 E:      145 - 15.4 E:            147 - 37.5 E:

Miles Steamed - 350.3    Fuel Used - 4085 gallons.

September 30, 1942 - 6th Day.

0000 (K) Set clocks ahead to Zone (-11) time (L).

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_ _ _ _ _ _

POSITIONS:

0800 (L) 1200 (L) 2000 (L)
Lat. 39 - 00.0 S. 38 - 41.7 S. 37 - 04.4 S.
Long. 151 - 26.0 E. 152 - 24.1 E. 153 - 20.1 E.

Miles Steamed - 316.6 Fuel Used - 5135 gallons.

October 1, 1942 - 7th Day.

POSITIONS:

0800 (L) 1200 (L) 2000 (L)
Lat. 34 - 52.0 S. 34 - 13.2 S. 32 - 48.6 S.
Long. 154 - 31.6 E. 154 - 42.8 E. 155 - 24.2 E.

Miles Steamed - 282.8 Fuel Used - 5050 gallons.

October 2, 1942 - 8th Day.

1615 (L) Made training dive.
1645 (L) Surfaced.
2334 (L) Sighted Cape Morton Light.

POSITIONS:

0800 (L) 1200 (L) 2000 (L)
Lat. 29 - 30.0 S. 28 - 28.8 S. 27 - 00.0 S.
Long. 155 - 58.3 E. 156 - 13.0 E. 155 - 35.8 E.

Miles Steamed - 357 Fuel Used - 5470 gallons.

October 3, 1942 - 9th Day.

0340 (L) Passed Point VAN and headed up swept channel to
Brisbane, Australia.
0731 (L) Pilot came aboard and started passage through More-
ton Bay to the Brisbane River.
1112 (L) Moored starboard side to port side of GRAYBACK in
Brisbane.

Miles Steamed - 134.4 Fuel Used - 1295 gallons.

The period October 3, 1942, to October 7, 1942, was
utilized for minor adjustments and repairs and topping off
with fuel, lub oil provisions and torpedoes.

On October 6, 1942, loaded special equipment and
received on board the following personnel to be landed as
coast watchers:

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— page 90 —
S E C R E T
_______

Sub: Lieut. H.E. JOSSELYN, R.A.N.V.R.,
Sub. Lieut. J. K. MAN, R.A.N.V.R.,
Sub. Lieut. A.N.A. WADDELL, R.A.N.V.R.,
Sergeant SETON, Australian Army.

COMMANDER TASK GROUP FORTY TWO POINT ONE Operation
Order S41-42 of October 6, 1942, directed this vessel to
conduct unrestricted submarine warfare in patrol areas
LOVE, BAKER and DOG and to land coast watchers on VELLA
LAVELLA Island and CHOISEUL Island. Depart area at Sun-
set November 19, 1942. All times are Zone -11. Fuel
and miles are midnight to midnight readings.

October 7, 1942 - 1st Day.

1500 Underway from alongside dock. Proceeding down
channel to Moreton Bay.
1605 Passed Pile Light House proceeding through Moreton
Bay.
1825 Dropped Pilot and entered swept channel proceeding
to sea.
2059 Passed through Point VAN and set course for Point
BUD. Speed 14 knots on 3 engines.

Miles Steamed - 125.4 Fuel Used - 1805 gallons.

October 8, 1942 - 2nd Day.

0340 Proceeding to area on surface.
Passed through POINT BUD and set course 018° T.,
for area.
0706 Made training dive. Adjusted trim and went to 200
foot to test for tightness. Results satisfactory.
0750 Surfaced.

POSITIONS:

0800                     1200                     2000
Lat. 25 - 16.0 S.        24 - 22.0 S.             22 - 25.0 S.
Long. 155 - 12.3 E.      155 - 34.0 E.            156 - 11.0 E.

Miles Steamed - 342.1 Fuel Used - 4680 gallons.

October 9, 1942 - 3rd Day.

0934 Proceeding to area on the surface.
1010 Submerged for training and drills.
Surfaced. Resumed course and speed.

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P O S I T I O N S:

0800 1200 2000
Lat. 19 - 32.5 S. 18 - 43.7 S. 16 - 48.0 S.
Long. 156 - 21.4 E. 156 - 26.0 E. 156 - 43.6 E.

Miles Steamed - 341.8 Fuel Used - 4886 gallons.

October 10, 1942 - 4th Day.

0030 Received despatch modification of routing to area
directing passing to the southward of GATUKAI and MBULO
patrolling along the coast of NEW GEORGIA enroute to VELLA
LAVELLA. By maintaining present speed during night of
October 10, we will be in position to dive at dawn October
11, 10 miles south of BALFOUR Channel between RENDOVA and
TETIPARI Islands.
1054 Submerged for training and drills.
1136 Surfaced and resumed course and speed.
2300 Received instructions from TASK GROUP Commander to
positively identify before attacking south of Lat. 8° 25'
South. Also information as to location of own forces.
Will carry out scheduled patrol in morning as we
will be close inshore during day. During the night will
proceed around MBULO at high speed to gain position north
of 8° 25' S. and off VISUVISU Point, NEW GEORGIA Island
for patrol on October 12. Information on sightings in-
dicates many ships passing in this area daily during day-
light hours.

P O S I T I O N S:

0800 1200 2000
Lat. 13 - 53.3 S. 13 - 05.1 S. 10 - 57.3 S.
Long. 156 - 56.5 E. 157 - 01.5 E. 157 - 08.5 E.

Miles Steamed - 352.3 Fuel Used - 4730 gallons.

October 11, 1942 - 5th Day.

During submerged patrols in the area, periscope
observations are every 15 minutes with sound sweeps at
intervals between observations. To avoid detection by
planes went to 110 feet between observations.
0420 Sighted Point PLEASANT, RENDOVA Island bearing
025° T., distant 10 miles and MONTGOMERY Island bearing
037° T., distant 10 miles.
0500 Dove off entrance to BALFOUR Channel and commenced
submerged patrol on course 105° T., passing five miles to
the southward of the shore line.

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[FADED TEXT: SECRET]

1215 Changed course to 080° T., to pass five miles off
GATUKAI Island.
1350 Sighted light bomber Mitsubishu Darcis 108 astern
and banking around to head for us. Went to 200 feet and
changed course to 180° T. No attack made on us.
1420 Came to periscope depth. All clear. Resumed
course 080° T.
1506 Sighted two biplanes astern apparently headed for
our periscope. Went to 150 feet and changed course. No
attack.
1536 Came to periscope depth. All clear. Islands
partly obscured by rain.
1910 Surfaced. Went ahead on one engine, course 080°
T., to round into the NEW GEORGIA Channel. Speed 8
knots.
2118 Changed course to 022° T., passing five miles off
MBULO Island.
2224 Changed course to 334° T., to run up the coast of
NEW GEORGIA Island about 8 miles off shore.
2230 Ran into pouring rain and zero visibility. Start-
ed continuous sound watch. Two tubes in each room made
ready for firing.

POSITIONS:

0800                                1200                                2000

Lat.    8 - 53.6 S.                 8 - 57.8 S.                         8 - 55.0 S.
Long. 157 - 33.8 E.               157 - 47.6 E.                       158 - 15.0 E.

Miles Steamed - 154.8             Fuel Used - 1330 gallons.

October 12, 1942 - 6th Day.

Steaming as before in heavy rain and reduced visi-
bility.
0300 Heard rapid screws on port bow. These drew very
rapidly aft to port, nothing sighted.
0335 Sighted vessel on starboard beam bearing 059° T.,
making high speed and showing very noticeable bright
wake. Distance about 3000 yards. Sound pick up high
speed screws of this vessel prior to sighting and also
reported a second and third set farther aft to starboard.
0337 Slowed to 1/3 speed to let vessel draw ahead. It
was decided not to attack for the following reasons:
1. Visibility conditions did not admit of even
a fair set up on the T.D.C.
2. Swinging for a snap straight bow shot would
have given a very large track and little
chance of success.

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— page 93 —
SECRET

3. A miss at this time would indicate our pre-
sence and jeopardize our chances of sighting
shipping during the day.

0340 Vessel in sight, tentatively identified as a DD,
appeared to change course toward this vessel. With
other screws still reported to starboard and on the
quarter decided to dive.

0341 Dove and went to deep submergence. Sound report-
ed screws slowing down and stopping. No pinging and no
depth charges dropped. Only one set of screws heard
after diving.
Decided to remain down as our original plan was
to dive at 0500.
No further screws heard.

0545 Came to periscope depth. Cut in position and com-
menced patrol on course 310° T.

0707 Sighted plane dive bombing bearing 115° T. Smoke
of A.A. bursts sighted.

0708 Came to normal approach course based on enemy ves-
sel proceeding toward FAISI on course 310° T.

0712 Sighted tops of vessel bearing 115° T, angle on
the bow 0°, range about 18,000 yards.

0717 Vessel made out to be DD, angle on the bow 5°
starboard. Decided to maintain course and use stern
tubes to save bow tubes for larger game.

0725 Fired two torpedoes 110° starboard track, estim-
ated range 1100 yards, estimated speed 29 knots. Both
missed. After torpedo room was greatly delayed in get-
ting tubes ready for firing due to the valve to V.R.T.
tank being stuck. Flooded tubes from sea and only had
two tubes ready when we were forced to fire or give up
the attempt.
The fact that speed was under estimated and the
delay in getting tubes ready accounts for the misses.
Target identified as SHINONOMA class DD. After
firing saw target turn toward us without reducing speed.

0726 Went to deep submergence and rigged for depth
charge attack.

0734 Heard depth charges. Only two dropped. Had
difficulty regaining trim due to water flooded in through
poppets and tubes having been flooded from sea.

0748 All clear on sound came to periscope depth. All
clear all around.
This attack was productive of experience only.
Continued submerged patrol.

1910 Surfaced. Went ahead on one engine proceeding
to point off MUNDIMUNDI, VELLA LAVELLA Island to conduct
reconnaissance.

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POSITIONS:

| | 0800 | 1200 | 2000 |
|---|---|---|---|
| Lat. | 8 - 02.0 S. | 7 - 58.5 S. | 7 - 46.9 S. |
| Long. | 157 - 53.4 E. | 157 - 45.6 E. | 157 - 29.0 E. |

Miles Steamed - 120.8 | Fuel Used - 550 gallons.

October 13, 1942 - 7th Day.

Underway on surface proceeding to position for
0500 dive. Submerged and started submerged reconnaissance of
VELLA LAVELLA Island in the vicinity of MUNDIMUNDI prior
to landing two coast watchers at night. A complete re-
port of hydrographic information and the details of the
landing are the subject of a separate report.
0750 Sighted two 2 engine bombers bearing 350° T., head-
ed south. Unable identify type.
1020 Sighted one 2 engine bomber bearing 050° T., headed
south. Unable to identify.
1600 Reconnaissance completed, came to course 270° T., to
clear island.
1701 Sighted HIBIKI class DD bearing 040° T., on course
about 120° T., making slow speed. Range about 16,000
yards. Came to course 000° T., to close. Normal approach
course impracticable due to uncharted reefs off north west
tip of VELLA LAVELLA Island. While angle on bow seemed
to be about 90° starboard it was felt that this vessel
might be taking station off the north point of VELLA
LAVELLA Island to conduct patrol of the channel prior to
the passage of larger vessels.
1706 Destroyer swung toward us and stopped with angle
on the bow of 90° port. Navigational plot showed him
just off MOTULI Island and on the edge of SOMOVOVI Reef,
distant 16,000 yards.
1720 As no other vessel was in sight decided to make
attack on this lone watcher. With the exception of in-
complete navigational information in his vicinity and a
poor chart, conditions were ideal. Target was lying to,
sun and light chop were behind us and surf noises were
to our advantage.
During approach target turned toward us and ran
farther inshore at slow speed. We were unable to attain
position inshore of him due to uncharted reefs. Target
angle during major part of approach was 90° port.
1806 With range 5000 yards, target turned through 180°,
turning away from us and increasing range to 6000 yards.
Rigged for silent running as we were by then to seaward
of target and offered a better sound target than he did.

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— page 95 —
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1838        With range 4000 yards Commanding Officer broke
            off attack and retired regretfully to seaward for fol-
            lowing reasons:
                 1. Range too great to attempt high torpedo
                    speed shot against a DD target and plot in-
                    dicated target might be behind the incom-
                    pletely charted reef.
                 2. Darkness and land background made it al-
                    most impossible to see target.
                 3. Target had drawn into a position just off
                    shore at the mouth of MARQUANA Bay and surf
                    noises and navigational plot indicated that
                    further advance might result in our ground-
                    ing.
1850        Target screws were heard to start up. As it was
            then too dark for attack depth was increased to 150
            feet. Target screws drew steadily away on bearing that
            indicated he was returning to FAISI.
2018        All clear on sound. Surfaced and headed to sea
            on course 260° T. to charge batteries.
            At a conference between the Commanding Officer and
            the coast watchers it was decided to carry out the land-
            ing as scheduled. During the approach the Commanding
            Officer was unable to determine what the mission of this
            vessel might be. If the destroyer previously stalked had
            landed personnel they could hardly have come south to our
            proposed landing place by the time we landed. To delay
            the landing would jeopardize our chances of success even
            more.
2230        Reversed course and headed in for the landing.

POSITIONS:

0800                | 1200                | 2000
Lat.  7 - 31.5 S.   | 7 - 39.0 S.         | 7 - 33.7 S.
Long. 156 - 23.5 E. | 156 - 24.3 E.       | 156 - 26.6 E.

Miles Steamed - 119 | Fuel Used - 645 gallons.

October 14, 1942 - 8th Day.

0129        Underway on the surface.
            Stopped and commenced landing the coast watchers
            boats.
0142        Coast watchers Sub. Lieut. JOSSELYN and Sub.
            Lieut. KEENAN left the ship at a distance of 3/4 miles
            from the beach. Weather hazy, sea flat calm, light
            breezes, sky partly overcast. Conditions ideal.
0142        Underway on battery-motor combination to clear
            the beach.
0215        Ahead on one engine. Set course for CHOISEUL
            Island. Information on hand from TASK GROUP Commander
            indicates an attack on GUADALCANAL is developing. As

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— page 96 —
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FAISI-BUIN area is a main base our best locality of op-
eration is off this base. Our operations in that part
of area south of 8° 25' S. are still restricted to posi-
tive identification prior to attack. Consequently it was
decided to conduct operations on the lane from FAISI to
the channel between VELLA LAVELLA and CHOISEUL and to
take the second group of coast watchers tonight leaving
us free from all incumbrances.

Four men seriously cramp the wardroom living
spaces and their gear loaded in the after torpedoroom
seriously interferes with reloading there as we learned
after our attack of October 12. While our primary mis-
sion is the destruction of enemy vessels the presence
of the passengers and the knowledge that their landing in
poorly charted areas must be accomplished prior to return
to port is an additional strain on the Commanding Officer.
If the landings accomplished our area of activity is
limited only by our operational areas and the Commanding
Officer can concentrate fully on seeking out and destroy-
ing enemy vessels.

0500 Submerged and started patrol across traffic lane
to FAISI-BUIN area enroute to CHOISEUL Island.
1025 Sighted tops of 3 vessels in column bearing 215°
T., distant 14,000 yards, angle on the bow of approx-
imately 90° starboard. Swung left with full rudder and
came to 60 foot to expose 6 feet of periscope for better
look. Vessels identified as HIBIKI class destroyers in
column, course 295° T., for FAISI, range 14,000 yards,
angle on the bow 90° starboard. Sound picked up the
screws at this time and enemy speed was estimated at 15
knots. No accurate count was obtained. The set up show-
ed no chance to close so course was set to intercept
the vessels coming up astern. No further sighting was
made so at 1100 returned to course for CHOISEUL. This
was necessary to enable us to get close to the landing
area in daylight to look over the area and try to get
an estimate of currents we may encounter in landing
operations.
1647 Sighted patrol flying boat similar to Flying
Boat 95 (Japanese) bearing 190° T., on course about 310°
T.
1725 Sighted two Reconnaissance Bomber 95 type seaplanes
bearing 179° T. on course north.
1744 Completed reconnaissance and resumed course to
head out to sea.
1915 Surfaced on course 230° T.
2100 Headed in for spot chosen for landing of coast
watchers.
2315 Received orders to take station origin ten miles
from VISUVISU Point by daylight October 15, delaying
landing if necessary. Remain on this station until fur-
ther orders.

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SECRET
Went to course for new station and went to 3 engine
speed 15.5 knots. Abandoning landing attempt which would
have been completed in another hour.

POSITIONS:

0800 | 1200 | 2000
Lat. 7 - 18.7 S. | 7 - 11.2 S. | 6 - 59.1 S.
Long. 156 - 21.7 E. | 156 - 22.6 E. | 156 - 19.0 E.

Miles Steamed - 95.1 Fuel Used - 510 gallons.

October 15, 1942 - 9th Day.

0500 Underway on the surface proceeding to station.
Submerged and started patrol along axis of traf-
fic until 0800.
0800 Began patrol on 020° T. - 220° T., line across
axis of traffic. Reversing course every two hours.
1916 Surfaced, moon half full, visibility excellent.
1930 Sighted two lights in a vertical line bearing 100°
T., and down moon from us. Apparently an orange light
above a white light. Lights went out after about 1 min-
ute. Changed course and increased speed to run out of
the moon's path and gain the dark background of land.
Nothing was heard by sound and nothing further sighted.
2000 Began surface patrol 2 to 3 miles off shore par-
allel to the shore line. The moon was too bright for a
surface attack except with a dark background and not
light enough for a periscope attack.
As batteries had been watered a long charge was
necessary.

POSITIONS:

0800 | 1200 | 2000
Lat. 7 - 46.0 S. | 7 - 53.1 S. | 7 - 52.5 S.
Long. 157 - 30.5 E. | 157 - 34.3 E. | 157 - 34.5 E.

Miles Steamed - 142 Fuel Used - 1205 gallons.

October 16, 1942 - 10th Day.

Patrolling on the surface.
A plain language contact report indicated that
eight DD and two AP were headed up the channel and should
reach our position about midnight.
0140 Sighted ship bearing 040° T. Weather clear, sea
glassy, horizon hazy.
Stopped battery charge and shifted propulsion to
battery-motor. Changed course to 050° T., to close on

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— page 98 —
S E C R E T
quarter of vessel which was assumed to be on course 295°
up the channel. Made the lower four tubes forward ready
for firing.
0145 Ship tentatively identified as DD and two more
sighted astern of it.
0147 A total of seven vessels in sight covering an arc
of 50°. Stopped and started to swing left to head back
inshore. Sound unable to pick up screws at any time dur-
ing this approach.
As all vessels in sight appeared to be DD or sim-
ilar small craft it was decided to break off attack and
retire inshore.
0200 Nearest vessel had decreased range to about 3000
yards, although visibility was such that no definite est-
imate could be made. Ho turned toward this vessel at
this time. As visibility behind us was good even though
we had a land background we dove. Changed course to
clear area and clear shore.
0235 Sound picked up screws bearing 002° T., very
faintly.
0306 Having heard no further screws surfaced to air out
the boat.
0407 Submerged to conduct submerged patrol across the
axis of traffic on course 020° - 200° T.
0640 Sighted plane dive bombing on bearing 040° T.
Changed course to head for spot.
0651 Sighted what appeared to be tops of cruiser bear-
ing 050° T. and drawing rapidly to the southward.
0700 Nothing in sight. Ship apparently had passed us
well over to northward.
In view of information received and plots of re-
ported sightings, confirmed by our attack of October 12,
showing that up traffic passed close to VISU Point
in the morning and well out in the afternoon I had plan-
ned to patrol those lanes in that order.
0823 Sighted PBY patrol plane bearing 008° T., headed
in a northerly direction.
1913 Surfaced and commenced surface patrol into and
out of moon's path.

POSITIONS:
0800 | 1200 | 2000
Lat. 7 - 48.8 S. | 7 - 48.0 S. | 7 - 54.1 S.
Long. 157 - 38.0 E. | 157 - 38.0 E. | 157 - 27.0 E.

Milos Steamed. - 85.6 | Fuel Used - 415 gallons.

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— page 99 —
S E C R E T
October 17, 1942 - 11th Day.

0429 Patrolling on the surface.
Sighted aircraft flare bearing 259° T. It dropped
down and beyond the horizon.
0435 and Sighted aircraft flares bearing 271° T., well be-
0437 yond the horizon.
0500 Submerged to conduct submerged patrol. Set course
065° T., to quarter across the traffic lane and return on
course 200° T., at right angles to the traffic lane.
1845 Sighted a DD bearing 308° T., distant 12,000 yards
on course 140° T. Went to battle stations and started
approach. Visibility fair through periscope.
1903 Broke off attack. Visibility had become too poor
to make out range or angle on the bow. Destroyers were
zig-zagging erratically and varying speed. Speed estimate
23 knots. Turn count of 240 RPM gotten at one time.
Range upon breaking off estimated at 3000 yards. Sound
bearings erratic during approach. The situation did not
warrant the expenditure of torpedoes with very doubtful
chances of hitting. DD in rough column with distance of
1500 yards estimated between ships.
1935 Surfaced. Sky overcast but visibility much im-
proved. Non-visible at intervals. Changed surface
patrol into one out of moon's path to cross traffic lane
but favoring the land side to improve chances of attack-
ing if anything sighted.

POSITIONS:
0800 1200 2000
Lat. 7 - 45.7 S: 7 - 55.4 S: 7 - 52.4 S:
Long. 157 - 36.1 E: 157 - 38.5 E: 157 - 33.7 E:

Miles Steamed - 92.6 Fuel Used - 430 gallons.

October 18, 1942 - 12th Day.

0454 Patrolling on the surface.
Submerged to patrol on course 050° T., across the
traffic lane and 200° T., back.
0627 Sighted ship bearing 116° T., range about 14,000
yards, angle on bow 5° port. Changed course to 116° T.,
and went to battle stations.
0630 A total of 7 ships in sight, three in column and
four in line of bearing on column leader. All seemed to
be DD.
0640 Vessels in column identified as cruisers and ap-
proach concentrated on them. Later identified those as
two cruisers of JINTSU class maintaining distance in
column of about 400 yards and one of KUMA class maintain-

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— page 100 —
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S E C R E T

ing station with a distance of about 1000 yards. Other
four vessels were destroyers in line about 20° forward
of beam of leading cruiser interval 2300 yards; two on
each side.
Approach made on reverse of target's course to
come between target and inner screen on port bow. Swung
left to course 090° to that of target and steadied at
0643. Distance to track estimated at 1400 yards. Tar-
get speed estimated at 27 knots. Decision previously
made to fire 4 torpedoes at leading cruiser and two at
second in column as these were maintaining the closest
distance. Stern tubes were ready in case of an oppor-
tunity to swing and use them on the third cruiser or a
destroyer escort.
0646 Fired four torpedoes at intervals and on tracks
as indicated. This information determined after the
attack.

Track         | #1        | #2         | #3         | #4
Gyro Angle    | 150 Port  | 154 Port   | 156 Port   | 158 Port
Point of Aim  | 295       | 293        | 290        | 288
Interval      | Bow       | Foremast   | MOT        | Mainmast
              | ---       | 10 sec.    | 11 sec.    | 10 sec.
Depth control was lost during firing at leading
target and the ship came to 50 feet. Speed was in-
creased and vibration of the periscope was such that no
set up could be made for second target which was seen
heeling to port and turning hard away from us.
0647 Personnel in torpedo rooms and some men in con-
ning tower heard one explosion after last torpedo was
fired. Due to vibration of periscope and attempts to
get set up on second target the Commanding Officer was
not watching the first target after the last torpedo
was fired.
Went to 200 feet and rigged for depth charge
attack.
0652 First depth charge exploded some distance away.
0703 Last of a total of 16 charges exploded.
While some of the screws almost continuously no
explosions were heard and depth charge explosions were
not heard on the sound gear. On the way to deep sub-
mergence sound heard the target screws slow down. It
is believed that one hit was obtained on this target.
0736 All clear on sound so came to periscope depth.
Trim badly out due to, as later determined, incomplete-
ly flooding after tubes from after W.R.T. tank. Sight-
ed DD bearing 130° T., distant 4500 yards. Angle on
bow 80° Port. HIBIKI class. Screws started up and he
turned toward us. Went back to 200 feet. Trim too
badly out to close and attack.
0803 All clear on sound. Came to periscope depth.
Mast of DD sighted bearing 300° T., which rapidly drop-

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ped out of sight. Secured from battle stations and from
depth charge stations. Resumed normal patrol.
The Commanding Officer missed the chance of a life
time for the following reasons:
1. Turn from high parallax course too late
due to underestimating time to turn 90°.
2. Overestimate of speed. Sound bearing of
torpedoes indicated passing ahead.
3. Loss of depth control necessitating in-
creased speed. Vibration of the at
periscope at speeds over 3 knots prevents
observation.
It is felt that there was one hit for in addition
to several men hearing one explosion, sound of the
target's screws slow shortly after the last torpedo was
fired and a continuous water noise on that bearing dur-
ing depth charge attack. This gradually faded out on
bearing 020° T. The sound was high pitched and of vary-
ing intensity similar to the sound of a relief valve
lifting.
0948 Sighted small buoy with mast and red flag bear-
ing 265° T. A second buoy sighted bearing 270° T.
These were in the position where the attack was made
and may have been markers dropped by enemy DD to as-
sist in carrying out depth charge attack.
1920 Commenced surface patrol. Moved
south to patrol off RAMADA Bay. Don't like to patrol
in the same area two nights in a row.
2145 Received orders to proceed and land coast watchers,
returning to present station as soon as possible.
2150 Set course for area off CHOISEUL and increased
to two engine speed, 14 knots.

POSITIONS:

0800 1200 2000
Lat. 7 - 47.0 S. 7 - 42.2 S. 7 - 58.3 S.
Long. 157 - 26.9 E. 157 - 22.5 E. 157 - 35.5 E.

Miles Steamed - 107.4 Fuel Used - 670 gallons.

October 19, 1942 - 13th Day.

0456 Enroute on the surface.
Submerged to patrol traffic lane north of VELLA
LAVELLA enroute to landing area.
1420 Sound picked up screws bearing 267° T. Came to
periscope depth.
--22 Sighted three AMAGIRI class DD in column on course
115° T., bearing 265° T., range 10,000 yards, angle on
bow 80° port. Swung with full rudder to course 120° T.
(normal approach course). Went to battle stations.

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1440 Speed checked at 23 knots, 240 RPM.
     Unable to close range under 6200 yards so broke
     off approach. Torpedo run too great to fire.
1650 Resumed patrol.
     Sighted three float type seaplanes bearing 290° T.,
     on course down toward NEW GEORGIA Island.
1915 Surfaced. Set course to enable battery charge to
     be completed prior to making landing.

POSITIONS:

0800                 1200                 2000

Lat. 7 - 26.8 S.     7 - 24.5 S.          7 - 01.3 S.
Long. 156 - 26.0 E.  156 - 24.8 E.        156 - 26.2 E.

Miles Steamed - 125.8      Fuel Used - 710 gallons

October 20, 1942 - 14th Day.

0034 Underway on the surface.
     Reached position one mile from shore and began
     loading coast watchers and equipment in rubber boats.
0051 Sub. Lieut. WADDELL and Sergeant SETON left the
     ship. Set course to resume patrol station.
     Due to the distance to be run we cannot reach our
     station by dawn so plan to dive on the traffic lane and
     patrol along it toward station.
0230 Sighted ship bearing 225° T., distant about 8000
     yards. Stopped and manned sound gear. Nothing heard. No
     screws heard. Believe vessel sighted was SAILFISH on the
     eastern boundary of her area. Visibility conditions very
     bad due to haze. Turned away to present a small sil-
     houette and maneuvered to avoid. We know the SAILFISH
     is in this vicinity but she does not know that we may be
     here.
0300 Vessel out of sight. Resumed course and speed.
0503 Submerged in traffic lane on course 118° T.
1915 Surfaced in rain storm.
     Stood over to mouth of KULA Gulf to cut in position
     and patrol off the mouth between VISUVISU Point and KOLOM-
     BANGARA.

POSITIONS:

0800                 1200                 2000

Lat. 7 - 31.8 S.     7 - 39.3 S.          7 - 50.0 S.
Long. 156 - 50.3 E.  157 - 02.3 E.        157 - 22.2 E.

Miles Steamed - 122.7      Fuel Used - 810 gallons

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October 21, 1942 - 15th Day.

Patrolling on the surface.
A study of our own sightings and those received
from the TASK GROUP Commander indicate that the Japanese
leave and arrive in the KASI area during daylight and
reach a point east of YOTOLAMBAPA Island just before
dusk and just after sunrise. They pass VISU Point
during evening twilight. We made our unsuccessful attack
of the point to make our unsuccessful attack on the
cruisers during daylight. Plan to patrol in this area
again today.
0452 Submerged. Patrolling on course 030° T., and re-
verse across the traffic lane.
1922 Surfaced. Bright moonlight with scattered clouds.
Patrolling on course 210° T., and reverse past to the
westward of the traffic lane.
2300 Received dispatch from TASK GROUP Commander as-
signing this vessel TASK UNIT designation 42.1.9 and
informing us that TASK FORCE 42 now temporarily under
operational command of COMMANDER SOUTH PACIFIC.

POSITIONS:
          0800           1200           2000
Lat.      7 - 37.8 S.    7 - 43.0 S.    7 - 49.2 S.
Long.     157 - 12.5 E.  157 - 10.0 E.  157 - 15.3 E.

Miles Steamed - 82.9
Fuel Used - 370 gallons.

October 22, 1942 - 16th Day.

Patrolling on surface.
0458 Submerged. Conducting submerged patrol on course
020° T., and reverse across the traffic lane.
1053 Sighted unidentified plane bearing 332° T., on a
northerly course.
1525 Sighted two fighter type planes bearing 245° T.,
on a northerly course.
1916 Surfaced. Commenced patrol along traffic lane
angling slightly across it.

POSITIONS:
          0800           1200           2000
Lat.      7 - 38.0 S.    7 - 45.5 S.    7 - 47.6 S.
Long.     157 - 15.0 E.  157 - 12.0 E.  157 - 17.9 E.

Miles Steamed - 82.4
Fuel Used - 330 gallons.

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_October 23, 1942 - 17th Day._

0457         Patrolling on the surface.
             Submerged. Conducting patrol on course 020° T.,
             220° T., across the traffic lane.
1925         Surfaced. Commenced patrol along the traffic lane.

_POSITIONS:_

| 0800          | 1200          | 2000          |
||||
| Lat. 7 - 37.7 S. | 7 - 44.0 S. | 7 - 46.8 S. |
| Long. 157 - 12.7 E. | 157 - 08.0 E. | 157 - 14.1 E. |

Miles Steamed - 105.8         Fuel Used - 525 gallons.

_October 24, 1942 - 18th Day._

0450         Patrolling on the surface.
             Submerged and started patrol on course 020° T.,
             and 220° T., across the traffic lane.
1915         Surfaced. Commenced surface patrol along traffic
             lane.
2230         Received instructions from TASK GROUP Commander to
             maintain same point of origin but remain between Longi-
             tudes 157° and 158° 20' E., after sunset October 26,
             1942. New routing home to be sent later.
             Believe the full moon to be responsible for the
             reduction of traffic through this area. Believe traffic
             will pick up in a few days with the waning moon and an-
             ticipate that it will appear south bound earlier and
             north bound during the night.

_POSITIONS:_

| 0800          | 1200          | 2000          |
||||
| Lat. 7 - 41.0 S. | 7 - 36.8 S. | 7 - 43.7 S. |
| Long. 157 - 11.0 E. | 157 - 12.2 E. | 157 - 15.6 E. |

Miles Steamed - 112.2         Fuel Used - 480 gallons.

_October 25, 1942 - 19th Day._

0505         Patrolling on the surface.
             Submerged. Patrolling on course 030° T., 220° T:
             across traffic lane.
1915         Surfaced and commenced patrol along traffic lane.

_POSITIONS:_

| 0800          | 1200          | 2000          |
||||
| Lat. 7 - 43.2 S. | 7 - 43.0 S: | 7 - 49.3 S. |
| Long. 157 - 13.5 E. | 157 - 17.0 E. | 157 - 20.9 E. |

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— page 105 —
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Miles Steamed - 109.7 Fuel Used - 470 gallons.
October 26, 1942 - 20th Day.

0445 Patrolling on the surface.
Submerged. Patrolling on courses 030° T., and
1920 220° T.
Surfaced. Commenced surface patrol parallel to
the traffic lane.

POSITIONS:

0800 1200 2000
Lat. 7 - 47.5 S. 7 - 45.0 S. 7 - 50.2 S.
Long. 157 - 17.5 E. 157 - 19.0 E. 157 - 26.7 E.

Miles Steamed - 110.4 Fuel Used - 435 gallons.
October 27, 1942 - 21st Day.

0450 Patrolling on the surface.
Submerged. Patrolling on courses 030° T. - 210°
T., across the traffic lanes.
1922 Surfaced. Commenced surface patrol on course
115° T., and reverse along axis of traffic lane.

POSITIONS:

0800 1200 2000
Lat. 7 - 43.5 S. 7 - 48.0 S. 7 - 48.2 S.
Long. 157 - 16.2 E. 157 - 14.0 E. 157 - 20.5 E.

Miles Steamed - 106.5 Fuel Used - 535 gallons.
October 28, 1942 - 22nd Day.

0505 Patrolling on the surface.
Submerged. Commenced patrol along axis of traf-
fic lane.
1920 Surfaced. Commenced patrol along traffic lane.
2230 Received despatch extending area to Longitude 159°
10' E., and north of line between MBULO and RUSSELL
Islands.
As no traffic has been seen in this area since
October 19 decision was made to proceed to southeastern
part of area for a few days and then return to area off
VISUVISU Point. Plan to patrol northwest of RUSSELL
Island one day - off MBULO one day and then decide what
further action to take.

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— page 106 —
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POSITIONS:
| | 0800 | 1200 | 2000 |
|---|---|---|---|
| Lat. | 7 - 43.3 S. | 7 - 40.6 S. | 7 - 43.8 S. |
| Long. | 157 - 18.1 E. | 157 - 12.0 E. | 157 - 20.5 E. |
Miles Steamed - 113.4
Fuel Used - 470 gallons.

October 29, 1942 - 23rd Day.
0445 | Patrolling on the surface.
| Submerged on the FAISI-GUADALCANAL lane. Dove early
| to work on safety tank blow valve which was stuck shut.
0600 | Safety tank blow out of commission for the rest of
| the cruise. Unable to open it and can take no chances of
| damaging the manifold.
1926 | Surfaced. Patrolling on the surface on course to-
| ward MBULO.

POSITIONS:
| | 0800 | 1200 | 2000 |
|---|---|---|---|
| Lat. | 8 - 19.2 S. | 8 - 21.0 S. | 8 - 28.3 S. |
| Long. | 158 - 32.5 E. | 158 - 35.7 E. | 158 - 42.0 E. |
Miles Steamed - 109.7
Fuel Used - 440 gallons.

October 30, 1942 - 24th Day.
0505 | Patrolling on the surface.
| Submerged. 8 miles northwest of MBULO. Patrol-
| ling on course 345° T. parallel to the coast to see if
| there is any indications of enemy activity on this side
| of PAVUNU.
1920 | Surfaced having seen no activity all day.
| With no information of Japanese activity in any
| particular part of our area decided to return to the nar-
| row channel off VISUVISU Point.
| Set course 300° T. and conducted surface patrol
| enroute to station.

POSITIONS:
| | 0800 | 1200 | 2000 |
|---|---|---|---|
| Lat. | 8 - 38.8 S. | 8 - 27.8 S. | 8 - 04.3 S. |
| Long. | 158 - 23.1 E. | 158 - 20.6 E. | 158 - 10.0 E. |
Miles Steamed - 101.2
Fuel Used - 465 gallons.
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— page 107 —
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October 31, 1942 - 25th Day.

Patrolling on the surface.
0500 Submerged to patrol across the traffic lane abreast
KOLOMBANGARA Island.
1635 Sighted Japanese Reconnaissance Bomber 95 bearing
210° T., distant about 1000 yards on southerly course.
Plane gave no indication of having sighted this vessel.
1920 Surfaced. Commenced surface patrol along traffic
lane.
2020 Sighted what appeared to be 36 inch searchlight
signalling almost vertically bearing 143° T. This bear-
ing put the light off the southeast tip of NEW GEORGIA
Island or off VANGUNU Island. Characters sent were not
U.S. and apparently were Japanese.

POSITIONS:

0800                     1200                     2000
Lat. 7 - 44.0 S.         7 - 36.5 S.              7 - 44.0 S.
Long. 157 - 11.0 E.      157 - 14.0 E.            157 - 17.6 E.

Miles Steamed - 107.4    Fuel Used - 370 gallons.

November 1, 1942 - 26th Day.

Patrolling on the surface.
0500 Submerged six miles off KOLOMBANGARA Island. Com-
menced patrol across the traffic lanes.
1034 Sighted unidentified large bombing plane bearing
246° T., on course about 310° T., altitude 400 feet.
Visibility during afternoon generally poor with
general overcast and frequent heavy showers.
1920 Surfaced. Commenced surface patrol parallel to
traffic lanes.

POSITIONS:

0800                     1200                     2000
Lat. 7 - 40.0 S.         7 - 48.0 S.              7 - 49.0 S.
Long. 157 - 16.0 E.      157 - 12.0 E.            157 - 14.5 E.

Miles Steamed - 107.5    Fuel Used - 535 gallons.

November 2, 1942 - 27th Day.

Patrolling on the surface.
0450 Submerged seven miles off KOLOMBANGARA Island and
commenced patrol across the traffic lanes. Visibility
often bad during the morning due to heavy rain squalls.

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— page 108 —
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1530 Sighted unidentified plane bearing 070° T., dis-
tant 5000 yards, heavy bomber type.
1905 Surfaced. Complete overcast, light haze and gen-
eral rain. Commenced patrol along traffic lane.
2030 Visibility very poor. Made two tubes fully ready
in each torpedo room.
2200 Visibility much improved. Secured tubes.

POSITIONS:

0800 1200 2000

Lat. 7 - 41.0 S. 7 - 46.5 S. 7 - 46.0 S.
Long. 157 - 12.5 E. 157 - 13.5 E. 157 - 23.3 E.

Miles Steamed - 107.3 Fuel Used - 435 gallons.

November 3, 1942 - 28th Day.

0510 Patrolling on the surface.
Submerged. Commenced patrol across traffic lanes.
Generally bad visibility during the morning due
to rain squalls.
0935 Sighted approximately 30 float type seaplanes
bearing 238° T., on northerly course in formation at ap-
proximate altitude 2000 feet. Unable to identify due to
poor visibility.
1448 Sighted 2 unidentified planes, distant 6 miles on
a northerly course.
1920 Surfaced. Commenced patrol along traffic lane
keeping about 2 - 3 miles off the coast of NEW GEORGIA.
General overcast with good to fair visibility.

POSITIONS:

0800 1200 2000

Lat. 7 - 39.0 S. 7 - 46.5 S. 7 - 48.5 S.
Long. 157 - 16.0 E. 157 - 12.0 E. 157 - 16.0 E.

Miles Steamed - 111.1 Fuel Used - 415 gallons.

November 4, 1942 - 29th Day.

0455 Patrolling on the surface.
Submerged. Commenced patrol across the traffic
lane.
1418 Sighted enemy plane bearing 030° T., course 220°
T., distant 500 yards flying directly over periscope at
about 400 feet. Went to 150 feet. No bombs dropped.
Sighting came after a high power sweep of the horizon
so we may have been sighted.

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— page 109 —
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1915 Surfaced. Commenced surface patrol along traffic
     lane about 3 miles off NEW GEORGIA Island.

     POSITIONS:

     0800                 1200                 2000

Lat. 7 - 40.6 S.     7 - 44.5 S:          7 - 49.6 S.
Long. 157 - 18.8 E.  157 - 16.2 E.        157 - 24.0 E.

Miles Steamed - 109  Fuel Used - 390 gallons.

November 5, 1942 - 30th Day.

     Patrolling on the surface. Sky overcast. Light
     rains.
0040 Sighted orange light bearing 324° T., distance not
     determined. Second light appeared under first. These
     lights appeared to be directional and were turned slowly
     away from us so that only the lume could be seen. In
     view of the poor visibility and the plane sighted passing
     over us in the afternoon decided to maintain our course.
     Those lights seemed to be right on the horizon and
     must have been on a ship as the nearest land in that
     direction was 45 miles. These lights were similar to
     ones sighted once before in this area and may be some
     form of recognition signal.
0455 Submerged nearer to VISUVISU Point and commenced
     patrol across the traffic lane.
1920 Surfaced. Commenced surface patrol along traffic
     lane running four miles off NEW GEORGIA Island.

     POSITIONS:

     0800                 1200                 2000

Lat. 7 - 41.0 S.     7 - 42.0 S:          7 - 44.5 S.
Long. 157 - 23.6 E.  157 - 16.0 E.        157 - 20.7 E.

Miles Steamed - 101.6  Fuel Used - 450 gallons.

November 6, 1942 - 31st Day.

     Patrolling on the surface.
0500 Submerged 6 miles off VISUVISU Point, NEW GEORGIA,
     commenced patrol across traffic lane.
0550 Sighted formation of ships bearing 107° T., angle
     on bow average 20° starboard. Later identified as 1 KUMA
     class cruiser, 4 AMAGIRI class DD and 3 smaller type DD.
     Distance 12,000 yards. Changed course to the left to
     230° T., to close on 110° track.

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— page 110 —
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0555 Speed increased to standard and depth increased to
30 feet to cross outer screen whose angle on bow was 4°
starboard and close for attack on cruiser.
0600 Slowed and came to periscope depth to look. The
formation had zigged 70° to 80° to the right and we were
right in the middle. There were ships in all directions
and the destroyers, while maintaining the general trend
of the zig were patrolling. When located the cruiser was
distant 1500 yards, angle on the bow of about 1° port.
As he was passing too close astern of us there was no
chance to fire at him. Selected AMAGIRI class DD on our
port bow as target and set up T.D.C.
0610 Fired three torpedoes at DD, range about 1200
yards, angle on bow 30° starboard. Divergent spread.
After last torpedo was fired Commanding Officer made
quick sweep around to see that we were not in the path
of any ship. During this sweep one torpedo was heard
to hit. Sound heard his screws slow. When picked up
in the periscope there was a heavy cloud of black smoke
over him, he had sheered out to port beyond a left zig
of the formation and had a flag hoist up and had drop-
ped astern of formation. Changed course to head for
target on the chance of catching him and making a posi-
tive kill. And ahead standard speed.
0617 Three muffled explosions heard. A quick sweep,
even though periscope was vibrating, showed no ships
near and no water columns were seen. Believed air-
craft screens might be dropping bombs or depth charges,
depth was increased to 90 feet and the chase continued.
0625 Having slowed came to periscope depth. No sign
of original formation or of target. Target believed to
have sunk as his screws never speeded up again. And he
should still have been in sight. Muffled explosions
may have been his boilers exploding.
0630 Sighted another formation of 7 DD in what appear-
ed to be 3 columns bearing 122° T. Vessels were well
spread out and at varying ranges. The impression was
gained that the columns were in line of bearing. Se-
lected right hand column as target and came to course
050° T., to close on 110° port track. Range of select-
ed target 10,000 yards, angle on bow 10° port.
0638 Formation had zigged 50° left and again we were
in the middle. Selected AMAGIRI class DD on starboard
bow as target and set up T.D.C. Range 1700 yards,
angle on bow 50° port, bearing 021° relative.
0641 Fired three torpedoes. Diving Officer had
trouble with depth control and confused sea left by
first formation caused dipping of periscope after first
torpedo fired. No explosions heard. Believe speed of
30 knots used was too low. Started to change set up and
fire at DD crossing astern. Unable to get set up in

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time to fire on better than 160° starboard track so
abandoned attempt and went to 150 feet and rigged for
depth charge attack. Maintaining periscope depth in the
middle of a formation of destroyers was not considered
advisable.
0646 First of 32 depth charges went off.
0648 One DD heard to pass directly over the boat cross-
ing from starboard to port just abaft the conning tower.
His screws could be heard through the hull in all com-
partments. We had a bad two minutes waiting to see if
he dropped any charges. Fortunately none were dropped
until he had cleared us.
0659 Last charge exploded.
0710 Periscope depth. Nothing in sight. Secured from
depth charge attack and resumed patrol.
From the attacks made to date the Commanding
Officer has learned the following pertinent facts:
1. On a 30 to 35 knot target picked up at 12,000
to 14,000 yards, a range bearing plot for speed
determination is impracticable and well nigh
impossible.
2. A target speed of 30 knots should be used and
a speed spread applied.
3. Making an approach, in the pro-war sense of
the word, on a selected target in a high speed
formation when the zigs are radical and the
amount of the zig seems to be left to the dis-
cretion of each commanding officer, is nearly
impossible. The only solution seems to be to
get your boat at 90° to the general course of
advance, make frequent periscope exposures and
use bow or stern tubes on the most likely tar-
get. Running with the target and matching
zigs may be a solution. If another opportunity
offers this method will be tried.
4. Sound bearings in these waters on high speed
screws are 15° to 30° wide and the chances of
making a hit on a sound shot are very slim.
Also bearings have been checked as lagging the
target 10° to 15°. Whether this is a phenomena
of high speed screws in these waters or mis-
alignment of our gear has not yet been deter-
mined. Believe the former to be the case.
1920 Surface. Commenced patrol along traffic lanes
running 3 to 4 miles off VISUVISU Point.

POSITIONS:

0300 1200 2000

Lat. 7 - 45.0 S. 7 - 43.5 S. 7 - 44.6 S.
Long. 157 - 25.3 E. 157 - 20.0 E. 157 - 15.5 E.

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Miles Steamed - 112.3 Fuel Used - 500 gallons.
November 7, 1942 - 32nd Day.

0445 Patrolling on the surface.
Submerged. Commenced patrol across the traffic
lanes.
1745 Sighted two unidentified seaplanes course 110° T.,
bearing 040° T., distant 8 miles. Visibility hazy in
that direction.
1920 Surfaced. Commenced patrol along the traffic lane
running 4 miles off VISUVISU Point.
Visibility rapidly became bad. Very heavy rain
squalls. Cross chop and gusty winds.

POSITIONS:

0800 1200 2000
Lat. 7 - 41.8 S: 7 - 43.0 S: 7 - 47.0 S:
Long. 157 - 28.1 E: 157 - 22.0 E: 157 - 23.3 E.

Miles Steamed - 108.7 Fuel Used - 475 gallons.
November 8, 1942 - 33rd Day.

Patrolling on the surface. Complete overcast and
intermittent heavy rains. Maintained two tubes fully
ready the major part of the night.
0500 Submerged. Commenced patrol across the traffic
lane. Visibility poor in general.
0730 Sound picked up screws bearing 030° T. Very high
speed.
0731 Came to periscope depth and sighted 2 ASASHIO
class DD in line of bearing with 2000 yard interval.
Nearest DD bearing 066° T., range 4000 yards, angle on
bow 45° port. Speed estimated at 33 knots. Went to
battle stations and got bow tubes ready for firing. T.D.
C. set up showed torpedo run of 4500 yards with 120°
port track. Range 2600 yards. As speed was doubtful
and range excessive no torpedoes were fired. A problem
was run on the T.D.C. and speed checked at 33 knots.
When well by a flag hoist was seen and vessels slowed.
Sound heard them slow and T.D.C. showed they slowed.
0742 Secured from battle stations and resumed patrol.
Visibility only fair and numerous rain squalls
seen on the horizon.
0817 Sighted three DD in column bearing 066° T., dis-
tant 10,000 yards, angle on the bow 50° port. Came to
normal approach course and manned battle stations sub-
merged hoping for a zig toward us.
0826 Second column of 3 DD in line of bearing on first
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but beyond then sighted. All identified as ASASHIO class.
Speed checked as 30 knots. Minimum range obtained was
6000 yards.
0843 Secured from battle stations. Continued patrol.
During this approach the second ship in column was
signalling with a brilliant orange light located half way
up the mainmast. This light was similar to that seen on
two previous occasions at night. While it seemed to be
all directional it may have been trained on KOLOMBANGARA
Island sending a message to some shore station. No reply
was seen from this island.
This is the first instance to our knowledge of the
Japs coming so close to the CHOISEUL side of the channel.
Will start our patrol further out in the channel tomorrow.
1910 Surfaced. Ran into KULA Gulf for the night to get
a long battery charge in and allow the Commanding and
Executive Officers to get a good nights rest. Running on
course 130° T., and reverse in the lee of KOLOMBANGARA.

POSITIONS:

| | 0800 | 1200 | 2000 |
|---|---|---|---|
| Lat. | 7 - 39.3 S. | 7 - 42.5 S. | 7 - 51.3 S. |
| Long. | 157 - 13.1 E. | 157 - 10.0 E. | 157 - 11.9 E. |

Miles Steamed - 103 Fuel Used - 440 gallons.

November 9, 1942 - 34th Day.

0455 Running on the surface.
Submerged in the center of the channel north of
KOLOMBANGARA.
0718 Sighted three destroyers in column bearing 094° T.,
range 10,000 yards, angle on the bow 30° port. Later
identified as two ASASHIO class DD and one older small
class. Manned battle stations and made all tubes ready
for firing. Own course 100° T.
0727 Target zigged 20° to his right. Speed 30 knots.
Came to course 020° T.
0733 Targets passed ahead, range 3000 yards. T.D.C.
tracked and indicated too great a torpedo run on un-
favorable track at all times to fire with any chance of
success at such a high speed target. During this time 6
more DD had been sighted. These now bore 110° T., range
11,000 yards, angle on bow 20° port.
0738 Target zigged 50° left. Angle on bow 25° star-
board. This zig made as a ripple movement and was most
confusing to watch as one division appeared to be in
line of bearing and one in column. No two ships turned
at the same time. All ASASHIO class DD.

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Changed course to 228° T., and started approach on
second group of DD. During this phase target was changed
at least twice as favorable set ups appeared. Finally
settled on center ship of trailing column. Events occur-
red too rapidly to maintain an accurate record or retain
an accurate mental picture of our maneuvers and those of
the enemy.
0749 Fired three torpedoes. First on 90° starboard
track, range 2050, torpedo run 1500 yards.
0750 Heard torpedo explosion and Commanding Officer saw
high column of black smoke and spray just forward of main-
mast. Vibration of periscope due to increasing speed to
maintain depth control prevented more than a seconds ob-
servation.
About 6 seconds later sound man heard second ex-
plosion. Both explosions heard by Executive Officer and
several men in the torpedo room.
Target screws stopped after first explosion and
were not heard to start up again.
Later calculations indicated second torpedo fired
and seen just after hitting must have struck just after
of #1 stack and third torpedo must have struck in stern
abaft mainmast.
The Commanding Officer believes this destroyer
was sunk but could not remain at periscope depth to con-
firm this with eight additional undamaged destroyers in
the immediate vicinity.
0752 Went to 200 feet. Boat had previously been rig-
ged for depth charge attack as our previous experience
has been that 5 minutes after firing the first depth
charge goes off.
0755 On schedule the first depth charge exploded.
0926 The last of 37 depth charges went off. During
this period evasive tactics were pursued and hunting DD
kept abaft the beam. One or two vessels were heard at
intervals during this period. No screws were heard
after about 0950.
1013 Periscope depth. Nothing in sight. Secured from
battle stations and depth charge attack.
1925 Surfaced. Commenced patrol along traffic lane
close to the NEW GEORGIA shore.

POSITIONS:
| | 0800 | 1200 | 2000 |
|---|---|---|---|
| Lat. | 7 - 33.4 S. | 7 - 35.9 S. | 7 - 47.6 S. |
| Long. | 157 - 04.5 E. | 157 - 04.5 E. | 157 - 21.2 E. |
| Miles Steamed - 105.2 | Fuel Used - 480 gallons. | |

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S E C R E T
November 10, 1942 - 35th Day.

0445         Patroling on the surface.
             Submerged six miles northeast of VISUVISU Point.
             This moves us one hours run closer to up channel traffic.
             Believe after yesterdays attack the Japs will
             shift over to the VISUVISU side of the channel.
1023         Sighted one twin engine bomber bearing 100° T.,
             flying low headed for periscope. Did not wait to identi-
             fy. Went to 150 feet.
1835         Sighted 5 ASASHIO class DD bearing 223° T., range
             9000 yards, angle on bow 60° port. Own course 020° T.
             By the time we had turned to the normal approach course
             it was evident we could not close for an attack.
1920         Surfaced. Bow planes in hand operation due to an
             electrical casualty. Commenced patrol along the traffic
             lane running about 3 miles off NEW GEORGIA.

             POSITIONS:

             0800                       1200                       2000

Lat.   7 - 40.5 S.                7 - 49.0 S.                7 - 50.5 S.
Long. 157 - 33.5 E.               157 - 30.0 E.              157 - 23.3 E.

Miles Steamed - 99                Fuel Used - 410 gallons

November 11, 1942 - 36th Day.

0445         Patroling on the surface.
             Submerged 6 miles north of VISUVISU Point. Com-
             menced patrol across traffic lane. Believe the DD sight-
             ed yesterday will return this morning on this side of
             the channel as they were not bothered yesterday due to
             our inability to close.
             Bow planes back in hand operation after being
             once repaired.
0655         Sighted 2 float type seaplanes bearing 063° T.,
             on southerly course too far south to identify.
0752         Sighted 5 ASASHIO class DD bearing 130° T., range
             10,000 yeards, angle on bow 15° starboard. These must
             have been the ones who went by yesterday. Manned
             battle stations and came to normal approach course.
0762         Target at 33 knots. Speed checked at 33
             knots. Unable to close to shorter than 2500 yard torpedo
             run. Believe this excessive against such a high speed
             small target. Particularly when there were 5 of them
             in formation. Did not fire. Hand operation of bow
             planes prevented any use of high speed.
0807         Secured from battle stations and resumed patrol.
             Plan to be on their track at 1500 today for after two
             passages un-attacked I feel more ships will come down

                                   - 29 -
                                   S E C R E T

— page 116 —
S E C R E T

this afternoon. Plan to avoid repetition of yesterdays
letting them slip by and this failure to close.
The brilliant orange signal light was in use by
one of these vessels again today. This seems to be an
all around light or can be made one for day signalling.
While in use each vessel had a pennant at the yard arm
apparently used as we use our answering pennant.
1920 Surface. No ships through this afternoon at
all. The moon is in the first quarter and sets later
every night. That may slow up their action in this
channel. Commenced surface patrol along the traffic
lane.

POSITIONS:

0800             1200             2000

Lat.   7 - 45.2 S.    7 - 38.0 S.    7 - 44.5 S.
Long. 157 - 25.2 E.   157 - 23.3 E.   157 - 10.4 E.

Miles Steamed - 94.4   Fuel Used - 425 gallons.

November 12, 1942 - 37th Day.

0500           Patrolling on the surface.
               Submerged on the traffic lane northeast of KOLON-
               BANGARA. Commenced patrol along the lane.
0701           Sighted two float type seaplanes bearing 100° T.,
               sweeping across the channel. Too far away to identify.
0737           Sighted two float type seaplanes bearing 310° T.,
               these are believed to be the same ones sighted at 0701
               conducting a search of the channel.
1920           Surfaced and commenced surface patrol along the
               traffic lanes running three miles off VISUVISU Point.
               Sky overcast but visibility good until 2200. Then inter-
               mittent rain all night.

POSITIONS:

0800             1200             2000

Lat.   7 - 46.0 S.    7 - 48.0 S.    7 - 46.7 S.
Long. 157 - 11.8 E.   157 - 21.0 E.   157 - 03.4 E.

Miles Steamed - 105.4  Fuel Used - 430 gallons.

November 13, 1942 - 38th Day.

               Patrolling on the surface. Enroute to dive in
               position 5 miles northeast of VISUVISU Point.
0440           Sighted vessel bearing 310° T., range 2000 yards,
               angle on the bow about 5° starboard. Our course 290° T.

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Submerged to 150 feet and rigged for silent running. Sound
picked up screws on that bearing speeding up. A second set
of screws was picked up on the port bow going slow and a
third set on the starboard bow going slow. No depth charges
were dropped. Maneuvered to get all screws astern and head
away from the beach. At the time of sighting visibility
was very poor while a fair horizon existed astern.
Vessels heard to alternately stop and go ahead at varying
speeds conducting a sound search.
0530 Only one set of screws could be heard and they
seemed to be drawing away. Came to periscope depth and
sighted one DD bearing 268° T., one DD bearing 276° T.,
and five ships, apparently DD, bearing 298° T. Single
DD range 8000 yards, angle on bow 90° starboard. Group
of ships seemed to be in column angle on bow either 10°
starboard or 170° port. Rain clouds made a poor back-
ground for these vessels sighted and the rising sun was
obscured by clouds.
In view of the very poor visibility toward the
vessels sighted and the fact that they were listening
for us it was decided not to attempt to close and attack.
While they were making slow speed it was hardly possible
for us to close at 3 knots. Any higher speed would in-
crease the pitch of our main motor hum and the squeal in
our strut bearings and stern tubes.
0545 The five ships had opened the range and only 3
were in sight. The DD previously bearing 268° T., was
not in sight.
From the fact that only three sets of screws
could be heard searching for us while 7 vessels were
sighted through the periscope at 0530 it is assumed that
three DD were sent down from the BUIN-FAISI area to meet
the convoy five cripples forced to pass our usual hunt-
ing grounds at daylight. Those three were to search for
us by listening the rendezvous with the cripples off
VISUVISU Point. The cripples must have been making very
slow speed and we are not sure whether we picked them
up on sound or not. About 0510 while on course 090° T.,
sound heard a high noise level on the starboard bow and
tracked it across to port. At intervals he could make
out a definite screw beat. This was thought to be one
of the searchers starting up after being stopped for a
while.
0934 Sighted friendly flying fortress bearing 140° T.,
course 120° T., altitude 1000 feet, distance 1 mile.
1910 Surfaced. Entered KULA Gulf to run on a north-
south course during the night. Plan to skirt KOLOM-
BANGARA Island in the morning and dive 25 miles up chan-
nel from todays position. If the Japs repeat yesterdays
procedure we will be in a better position and can inter-
cept them.

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— page 118 —
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POSITIONS:
0800                                1200                                2000
Lat.   7 - 50.0 S:                    7 - 41.0 S:                    7 - 53.6 S:
Long. 157 - 30.0 E.                   157 - 20.2 E.                   157 - 14.0 E.

Milos Stoamod - 100.8                 Fucl Usod - 415 gallons.

November 14, 1942 - 39th Day.

0457          Patrolling on the surface.
1920          Submerged and comnonced patrol along traffic lane.
              Surfaced. Comnonced patrol along traffic lane
              about 3 n ilos off NEW GEORGIA. Exceptionally good visi-
              bility and bright moonlight.
2255          On course 300° T., sighted DD bearing 320° T.,
              range about 9000 yards, angle on bow about 30° starboard.
              Speed 30 knots. Made ready the bow tubes.
2303          Visibility too good to stay on surface to fire on
              high speed DD so dove. Unablo pick up target in periscope.
              Sound picked him up right away.
2304          First depth charge exploded. Went to 200 feet and
              rigged for depth charge attack and silent running.
2311          Last of 7 depth charges exploded. Scrows stopped.
2358          Hoard 3 distant explosions. No scrows hoard on
              sound.

POSITIONS:
0800                                1200
Lat.   7 - 45.2 S:                    7 - 44.0 S:                    7 - 50.5 S:
Long. 157 - 13.0 E.                   157 - 07.5 E.                   157 - 23.6 E.

Milos Steamed - 101.1                 Fuel Used - 405 gallons.

November 15, 1942 - 40th Day.

0014          Submerged as before.
0034          Hoard distant explosion.
              Came to course 000° T., to head across the channel
              and give sound a better chance to listen. Surf noises
              very loud to port.
              As the moon set shortly after midnight there was no
              way of being sure what the visibility on the surface was.
              Rather than come up too soon and be run back down decided
              it was better to stay down until 0200.
0145          Comnonced coming up stopping each 50 feet to give
              sound a chance to sweep all around. We have encountered
              sound layers in this area where enemy scrows cannot be

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— page 119 —
S E C R E T
[UNCLEAR: There] is no way of tolling whon you ontor ono of
[UNCLEAR: these] layors, oxcopt whon scrows aro hoard to
[UNCLEAR: fade] out or
[UNCLEAR: abruptly.]
0225 All cloor as far as could bo dotorminod
[UNCLEAR: by] sound
and poriscopo. Surfaced. Sot courso to divo
on the north sido of tho channol. If tho channol is usod
today tho Japs will undoubtodly shift sidos again.
0455 Submorgod and commoncod patrol at slight anglo to
traffic lano.
0835 Sightod masts of DD boaring 105° T., rango 12,000
yards, anglo on bow 80° starboord. Sightod malo aftor
sound had pickod up scrows. Idontifiod as ASASHIO class
DD. Whilo targot ziggod toward us 30° wo woro not ablo
to closo for an attack. Minimum torpodo run 3500 yards.
0919 Sightod ASASHIO class DD boaring 117° T., rango
11,000 yards, anglo on bow 15° port. Mannod battlo
stations and mado all tubos roady for firing. Turnod to
courso 020° T., for a 70° track.
0930 Firod throo torpodoos. Firod on 110° port track.
Torpodo run 2500 yards. Wo havo managod to closo to this
position so many timos without firing it was folt that
whon ono targot was aproaching woll thoro was a chanco for
a hit. All torpodoos missod ahoad. It is considorod
that no torpodoos should bo firod at such a small high
spood targot at groator than 2000 yard torpodo run.
Wont to 200 foot and riggod for dopth chargo at-
tack.
0935 First dopth chargo oxplodod.
0951 Last of 17 dopth chargos oxplodod.
Thoso chargos soomod to bo sot doopor than usual
and to bo largor than usual. Thoy woro droppod whilo
DD was making much slowor spood than thoy usually mako.
Also thoy tondod to roll tho boat at ono timo.
1044 Poriscopo dopth. Nothing in sight. Rosumod
patrol. Will shift back to VISUVISU Point sido of chan-
nol tomorrow.
1920 Surfacod. Commoncod patrol toward coast of SANTA
ISABEL Island to cloar our usual haunts for ono night.

POSITIONS:
0800 1200 2000
Lat. 7 - 36.1 S. 7 - 38.5 S. 7 - 45.2 S.
Long. 157 - 13.0 E. 157 - 19.0 E. 157 - 40.0 E.

Milos Stoamod - 110.5 Fuol Usod - 540 Gallons.
Novombor 16, 1942 - 41st Day:
Patrolling on tho surface.

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— page 120 —
S E C R E T
0458 Submerged and commenced patrol across to VISUVISU
0805 Point. Sighted four Zero Fighter land planes on course
     140° T., bearing 240° T., distant 5 miles, altitude 4000
     feet.
1920 Surfaced. Commenced patrol along the traffic
     lane.

POSITIONS:
0800                               1200                               2000
Lat. 7 - 48.4 S:                   7 - 54.1 S:                        8 - 07.6 S:
Long. 157 - 52.5 E:                 157 - 42.2 E:                      157 - 56.3 E:

Miles Steamed - 106.8              Fuel Used - 445 gallons.

November 17, 1942 - 42nd Day.

0455 Patrolling on the surface.
     Submerged in mid channel northeast of VISUVISU
     Point. Commenced patrol across the traffic lane.
1915 Surfaced. Commenced patrol along the traffic lane,
     well inshore.

POSITIONS:
0800                               1200                               2000
Lat. 7 - 47.8 S:                   7 - 43.3 S:                        7 - 57.4 S:
Long. 157 - 22.5 E:                 157 - 22.5 E:                      157 - 38.2 E:

Miles Steamed - 104.2              Fuel Used - 450 gallons.

November 18, 1942 - 43rd Day.

0500 Patrolling on the surface.
     Submerged off VISUVISU Point. Patrolling across
     the traffic lane.
1915 Surfaced. Set course for southern part of the
     area to dive so as to surface on the southern boundary
     between RUSSELL Island and BURAKU Island and depart area
     in accordance with operation order.
2330 Received orders to depart area at sunrise November
     19, 1942, and follow changed routing to Brisbane. In-
     creased speed to dive on southern boundary of area and
     run south submerged.

POSITIONS:
0800                               1200                               2000
Lat. 7 - 47.0 S:                   7 - 46.5 S:                        8 - 02.7 S:
Long. 157 - 36.5 E:                 157 - 36.5 E:                      157 - 51.5 E:

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— page 121 —
S E C R E T
Miles Steamed - 117.4 Fuel Used - 540 gallons.
November 19, 1942 - 43rd Day.
0512 Underway on the surface.
Submerged on Southern boundary of area. Commenced
1900 patrol clearing area.
Surfaced. Went ahead on three engines proceeding
in accordance with routing.
2330 Increased to four engine speed.

POSITIONS:

0800 1200 2000
Lat. 8 - 53.3 S. 9 - 00.0 S. 9 - 26.9 S.
Long. 158 - 38.0 E. 158 - 34.0 E. 158 - 21.8 E.

Miles Steamed - 159.3 Fuel Used - 1490 gallons.
November 20, 1942 - 44th Day.
Enroute on the surface. As we crossed Latitude
12° South at sunrise remained on the surface.

POSITIONS:

0800 1200 2000
Lat. 12 - 28.3 S. 13 - 32.0 S. 15 - 33.7 S.
Long. 157 - 35.3 E. 157 - 30.0 E. 157 - 20.2 E.

Miles Steamed - 382.7 Fuel Used - 7010 gallons.
November 21, 1942 - 45th Day.
Enroute on the surface.
2130 Slowed to two engine speed.

POSITIONS:

0800 1200 2000
Lat. 18 - 35.2 S. 19 - 37.3 S. 21 - 29.3 S.
Long. 157 - 09.0 E. 157 - 02.3 E. 156 - 35.0 E.

Miles Steamed - 367.8 Fuel Used - 6480 gallons.
November 22, 1942 - 46th Day.
Enroute on the surface.

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— page 122 —
S E C R E T

0700 Slowed to one engine speed.
0935 Sighted U.S.S. TROUT bearing 105° T., distant
16,000 yards. Exchanged recognition signals.
1000 Ahead two engine speed.
1600 Passed through Point EUD and set course for Point
VAN.
2310 Sighted submarine bearing 240° T., on parallel
and opposite course. Identified as U.S.S. PLUNGER after
exchange of recognition signals.

POSITIONS:

0800 1200 2000
Lat. 24 - 25.5 S. 25 - 09.6 S. 26 - 22.3 S.
Long. 155 - 30.8 E. 155 - 17.5 E. 154 - 25.7 E.

Miles Steamed - 301.8 Fuel Used - 3535 gallons.

November 23, 1942 -- 47th Day.

0005 Enroute on the surface.
0155 Sighted Cape Moreton Light bearing 271° T.
Passed through Point VAN and entered swept chan-
nel.
0345 Exchanged recognition signals with War Signal
Station, Caloundra Head. Received permission to enter
harbor.
0519 Pilot came aboard. Began passage through More-
ton Bay.
0725 Passed Pile Lighthouse and entered Brisbane
River.
0851 Moored port side to USS SAILFISH alongside USS
FULTON at Brisbane, Australia.

Miles Steamed - 103.5 Fuel Used - 1125 gallons.

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— page 123 —
S E C R E T

2. Weather.
The weather was generally excellent in the area. Seas
were calm, winds light and visibility usually good. Local rain
squalls materialized rapidly at times but soon cleared. During
flat calms at night there seemed to be a general light haze around
the horizon that made it extremely difficult to determine the
range of visibility.

3. Tidal Information.
Currents, surface and submerged, were unpredictable
and varied in velocity from day to day. At times surface and sub-
merged currents seemed to run in direct opposition to each other.

4. Navigational Aids.
No navigational lights were sighted. None of the
charts used are complete and in many instances their accuracy is
extremely doubtful.

5. Description of Ships Sighted.
DATE & : POSITION :ENEMY :ENEMY :RANGE OF:IDENTITY: REMARKS
TIME : :COURSE:SPEED/:SIGHTING:
: : :TURN : :

Sept.29:Bass Strait :092° T:8 Kts/:20000 :HMAS :Calls ex-
1400 (K): : :Not :Yds. :RAVA :changed,
: : :taken : :DORRA :
Oct. 12:Lat. 8-10.2S:300° T:30 Kts:3000 Yds:DD Un-:See Narra-
0335 :Long.158-00.0E:Est. :/too : :identifi-:tive.
: : :fast : :ed :
: : :to : : :
: : :count : : :

Oct. 12:Lat 8-04.0S:295° T:29 Kts:18,000 :SHINONO-:See Attack
0712 :Long.157-53.5E: :Est./ :Yards :DD class:#1.
: : :too fa: :DD :
: : :st to : : :
: : :count : : :

Oct. 13:4 miles off :120° T:15 Kts:17,000 :HIBIKI :Unable atta-
1701 :Mundimundi, : :Est/ :Yards :class DD:ck due to
:Vella Lavella : :not : : :reefs. See
: : :heard : : :narrative.

Oct. 14:Lat. 7-17 S.:295° T:15 Kts:14,000 :3 HIBIKI:Angle on bow
1025 :Long.156-03 E.: :Est/un:Yards :class DD:90° S. Un-
: : :able : :in col. :able close
: : :to got : : :for attack.

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— page 124 —
S E C R E T
_ _ _ _ _

ATE & : POSITION :ENEMY :ENEMY :RANGE OF:IDENTI: REMARKS
TIME : :COURSE:SPEED/:SIGHTING: :
: : :TURN : : :
: : :COUNT : : :
ct. 15:Lat. 7-57.8S:295° T:15 Kts:7000 Yds:7 ships :Broke off at-
140 :Long.157-36.2E: :Est/ : :apparent:tack when so
: : :Not : :ly DD. :many in sight
: : :heard : : :in loose forma-
: : : : : :tion.
ct. 16:Lat. 7-57.7S:Un- :Un- :18,000 :Cruiser :Drew away rap-
651 :Long.157-42.0E:known :known/:Yards :fore top:idly.
: : :Not :estima- :
: : :heard :ted :
ct. 17:Lat. 7-55 S :140° T:20 kts:12,000 :3 DD :Visibility too
341 :Long.157-38 E : :/ 240 :Yds. Est: :poor for per-
: : : : : :iscope attack.
ct. 18:Lat. 7-47 S:300° T:27 kts:14,000 :2 JINTU :See Attack #2.
327 :Long.157-19.1E: :Too fast:Yards :class 1
: : :to get: :KUMA cl-
: : : : :ass CLs
: : : : :and 4 HI
: : : : :BIKI cl-
: : : : :ass DD.
ct. 19:Lat. 7-19 S:115° T:23 kts:10,000 :3 AMAGI- :Angle on bow
22 :Long.156-26.6E: :/240 :Yards :RI class:too great to
: : :RPM : :DD. :allow closing
: : : : : :track.
ct. 20:Lat. 7-07.7S:300° T:8 kts:8000 Yds:Believed:Avoided as
230 :Long.156-23.9E: :Not : :to be :SAILFISH known
: : :heard : :SAILFISH:to be in this
: : : : : :vicinity.
ov. 6 :Lat. 7-48.5S:210° T:30 kts:14,000 :1 KUMA :Attack #3.
550 :Long.157-29.4E: :/not :Yards :class CL:
: : :taken : :4 NAGIR:
: : :too : :I class:
: : :fast : :DD 3 sm-:
: : : : :all DD
ov. 6 :Lat. 7-49.7S:295° T:30 kts:10,000 :7 Misc. :Attack #4.
530 :Long.157-27.7E: :/not :Yards :type DD :
: : :taken : : :
: : :too : : :
: : :fast : : :
ov. 8 :Lat. 7-40.7S:295° T:33 kts:4000 :2 ASAS- :Unable close
:Long.157-18.3E: :/not :Yards :HIO cl-:for attack.
: : :taken : :ass DD.
ov. 8 :Lat. 7-38 S :300° T:30 kts:10,000 :6 ASAS- :Unable close
:Long.157-18 E : :/not :Yards :HIO cl-:for attack.
: : :taken : :ass DD.

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— page 125 —
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DATE & : POSITION :ENEMY :ENEMY :RANGE OF:IDENTITY: REMARKS
TIME : :COURSE:SPEED/:SIGHTING:
: : :TURN :
: : :COUNT :
Nov. 9 :Lat. 7-32.5S:300° T:30 kts:10,000 :7 ASASH:Attack #5. 2
0718 :Long.157-07.5E: :/too :Yards :IO class:hits, believed
: : :fast : :DD 1 un-:sunk.
: : :to co-: :identi-:
: : :unt : :fied
Nov. 10:Lat. 7-40 S :120° T:30 kts:9000 :5 ASASH:Came out of the
1835 :Long.157-25 E :/too :Yards :IO class:sun or they
: : :fast : :DD :might have been
: : :to co-: : :picked up on
: : :unt : : :previous look.
Nov. 11:Lat. 7-45 S :300° T:33 kts:10,000 :5 ASASH:Unable close
0752 :Long.157-25 E :/too :Yards :IO class:for attack.
: : :fast : :DD
: : :to co-:
: : :unt :
Nov. 13:Lat. 7-53.8S:090° T: 0/ :8000 :2 DD and:3 vessels had
0530 :Long.157-35.8E: :Not :Yards :5 belie-:been heard
: : :taken : :ved to :hunting for us.
: : : : :be DD :These were in
: : : : : :sight when we
: : : : : :looked.
Nov. 14:Lat. 8-00.7S:115° T:30 kts:9000 :DD class:Sighted us as
2255 :Long.157-43.3E: :Not :Yards :not dis-:or just before
: : :taken : :tinguis-:we dove. Depth
: : : : :hable :charge attack.
Nov. 15:Lat. 7-37.0S:300° T:30 kts:12,000 :ASASHIO :Presented angle
0835 :Long.157-03.2E: :/too :Yards :class DD:on bow of 80°
: : :to : : :stbd on sight-
: : :count : : :ing. Zigged to-
: : : : : :ward but unable
: : : : : :close for att-
: : : : : :ack.
Nov. 15:Lat. 7-37.2S:295° T:30 kts:11,000 :ASASHIO :See attack #6.
0919 :Long.157-14.5E: :/too :Yards :class DD:
: : :to :
: : :count :
Nov. 22:Lat. 24-43 S :195° T:15 kts:16,000 :U.S. :Sighted bear-
0935 :Long.155-24.8E: :Not :Yards :TROUT :ing 105° T.
: : :taken :

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— page 126 —
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6. : Description of Aircraft Sighted.
DATE :TIME: TYPE : SHIP'S POSITION : ATTACK &
: : : : REMARKS
Oct. 11:1350:Mitsubishi Darai :Submerged 10 miles :No attack. Be-
: :108 Light Bomber :southwest of Vangu-:lieve our sight-
: :(1) :nu Island. :ing not verified
: : : :due to days sub-
: : : :mergence and
: : : :course change.
Oct. 11:1506:Unidentified bi- :Same. :Same.
: :planes (2)
Oct. 12:0707:Unidentified due :Lat. 8-04 S. :Attacking Jap DD
: :to range. Our :Long.157-53 E. :which we later
: :planes as they (?): :unsuccessfully
: :were bombing Jap : :attacked.
: :DD.
Oct. 13:0750:2 eng. bombers (?):Off west coast of :Headed south to-
: :unable identify. :Vella Lavella Isl. :ward Guadalcanal
:1020:2 eng. bomber un-: :area.
: :able identify.
Oct. 14:1647:Flying Boat 95 :Off northwest coast:Headed north.
:1725:Reconnaissance :of Choiseul Island.:
: :Bomber 95 (2)
Oct. 16:0823:PBY patrol bomber:Off Visuvisu Point,:Headed north-
: : :New Georgia Island.:west.
Oct. 19:1650:Float type sea- :Lat. 7-13 S. :Headed southeast.
: :plane. :Long.156-26 E. :Did not sight us.
Oct. 22:1053:Large bomber or :Lat. 7-41 S. :Headed on a
: :patrol boat. :Long.157-13 E. :northerly course.
:1525:2 fighter type :Lat. 7-40 S. :On a northeast-
: :planes. :Long.157-10 E. :erly course.
Oct. 31:1635:Reconnaissance :Lat. 7-41.8 S. :Distant 1000 Yds
: :Bomber 95 Jap. :Long.157-13 E. :on southerly co-
: : : :urse. Did not
: : : :see this vessel.
Nov. 1 :1034:Unidentified heavy:Lat. 7-44 S. :Course 310° T.,
: :bomber. :Long. 157-13.6 E. :altitude 4000 ft.
Nov. 2 :1530:Unidentified :Lat. 7-42 S. :Course north.
: :heavy bomber. :Long. 157-15 E.
Nov. 3 :0935:30 single float :Lat. 7-42.5 S. :Northerly course
: :type seaplanes. :Long. 157-18 E. :in formation.
:1448:2 unidentified. :Lat. 7-39 S. :Northerly course.
: : :Long. 157-14.8 E.
Nov. 4 :1418:Kowanishi 94 Re- :Lat. 7-45.9 S. :Course 220° T.,
: :connaissance Bom-:Long. 157-15.9 E. :gliding over
: :ber or Kowanishi : :periscope at
: :97 torpedo bomber: :400 feet.
Nov. 7 :1745:2 unidentified :Lat. 7-38.2 S. :Planes in edge
: :seaplanes. :Long. 157-17 E. :of a rain squall
: : : :and could not be
: : : :clearly seen.

- 39 -
S E C R E T

— page 127 —
S E C R E T
_ _ _ _ _ _

DATE | :TIME: | TYPE | : SHIP'S POSITION | : ATTACK &
     |       |      |                   | : REMARKS
-----|-------|------||
Nov. 10|:1023: |Bi-motored bomber |:Lat. 7-44.6 S: |:Headed over per-
     |       |      |:Long. 157-31.6 E. |:iscope. Did not
     |       |      |                   |:wait to identify.
Nov. 11|:0655: |Two unidentified |:Lat. 7-45 S: |:Headed on south-
     |       |:float type sea- |:Long. 157-21 E. |:ly course. Too
     |       |      |                   |:far away to iden-
     |       |      |                   |:tify.
Nov. 12|:0701: |unidentified |:Lat. 7-45 S: |:Apparently pat-
     |       |:float type sea- |:Long. 157-09.2 E. |:trolling the
     |:0737: |planes. |:Lat. 7-45.8 S: |:channel.
     |       |      |:Long. 157-11 E. |:
Nov. 13|:0934: |Flying fortress |:Lat. 7-47 S: |:Bearing 140° T.,
     |       |      |:Long. 157-28 E. |:course 120° T.,
     |       |      |                   |:distant 1 mile,
     |       |      |                   |:altitude 1000 Ft.
Nov. 16|:0805: |Four Zero Fight- |:Lat. 7-48.4 S. |:Bearing 240° T.,
     |       |:ors |:Long. 157-52.4 E. |:course 140° T.,
     |       |      |                   |:distant 5 miles,
     |       |      |                   |:altitude 4000 Ft.
     |       |      |                   |:

7. Particulars of Attacks.

ATTACK #1.

Date - October 12
Latitude 8 - 04 S.
Longitude 157 - 53.5 E.
Type: SHINONOLE class DD.
Torpedoes Fired: Two only due to delay in getting tubes ready.
Interval: 7 seconds.
Bow or Stern: Stern tube shot.
Range: 1st - 2100, 2nd - 2300.
Point of Aim: M.O.T.
Gyro Angle: #1 - 145° R., #2 - 149° R.
Track Angle: #1 - 120° starboard, #2 -
Depth Setting: Both 4 feet.
Enemy estimated speed: 29 knots.

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S E C R E T
_ _ _ _ _ _

— page 128 —
S E C R E T

Method firing: T.D.C. immediately after periscope observation.
                  Target observed all during firing.
Spread:           3° divergent, second torpedo to hit. First
                  offset 3° to aft.
Sound heard the torpedoes run.
      Misses on both torpedoes due to underestimation of target
speed and use of large track due to delay in getting tubes
ready to fire. Three torpedoes would have been used and a 70°
to 90° track if there had been no delay in preparation of tubes.

ATTACK #2.

Date - October 18, 1942.
Latitude - 7 - 47 S.
Longitude - 157 - 19.1 E.
Type:           2 JINSU class cruisers.
Torpedoes fired - 4 Bow tubes.
| | #1 | #2 | #3 | #4 |
| Interval | - | 10 sec. | 11 sec. | 10 sec. |
| Range | 1700 | 1750 | 1800 | 1875 |
| Point of Ai: | Bow | Forenast | M.O.T. | Mainmast |
| Gyro Angle | 295° | 293° | 290° | 288° |
| Track Angle | 150 Port | 154 Port | 156 Port | 158 Port |
| Depth Setting | 10 Ft. | 10 Ft. | 10 Ft. | 10 Ft. |
Enemy estimated speed - 27 knots.
      Fired from periscope depth setting bearing for each shot
in T.D.C.
      Sound heard all torpedoes run.
      No spread was used other than shifting point of aim aft.
      One hit is believed made on this target. Not observed
due to speeding up incident to loss of depth control. (Any
speed over 3 knots results in excessive vibration of peris-
cope). Explosion heard by men in conning tower and torpedo
room. Sound heard targets screws slow.
      Misses apparently ahead from observations by sound.

ATTACK #3.

Date - November 6, 1942.
Latitude: 7 - 48.5 S.
Longitude: 157 - 29.4 E.
Type:           AMAGIRI class DD.
Torpedoes fired: Three Bow tubes.
| | #1 | #2 | #3 |
| Interval: | - | 8 sec. | 9 sec. |
| Range: | 1700 | - | - |
| Point of Aim: | M.O.T. | M.O.T. | M.O.T. |
| Gyro Angle: | - | - | - |
| Track Angle: | 140° | - | - |
| Depth Setting: | 0 Ft. | 0 Ft. | 0 Ft. |
Enemy estimated speed - 27 knots.
      Fired at periscope depth setting bearing before each shot.
      Sound heard all torpedoes run.
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S E C R E T

— page 129 —
S E C R E T
_ _ _ _ _ _

One torpedo heard to hit. Smoke seen over target which
sheered out to port. Screws slowed and then were lost by
sound. Three heavy explosions heard 7 minutes after firing
while closing target. Thought to be depth charges dropped
from a plane. Depth increased and chase continued. Fifteen
minutes after firing there was no sign of target or of formation.
As target never speeded up again it is felt that he sank.

A T T A C K #4.

Date - November 7, 1942.
Latitude: 7 - 49.7 S.
Longitude: 157 - 27.7 E.
Type: AMAGIRI class DD.
Torpedoes fired: Three Bow tubes.
| | #1 | #2 | #3
| Interval: | - | 8 sec. | 10 sec.
| Range: | 1300 | 1875 | 1930
| Point of Aim: | H.O.T. | H.O.T. | H.O.T.
| Gyro Angle: | 7° | 10° | 15°
| Track Angle: | 100° Stbd. | 103° Stbd. | 106° Stbd.
| Depth Setting: | 0 Ft. | 0 Ft. | 0 Ft.
Enemy estimated speed - 30 knots.
Fired at periscope depth setting bearing before first shot.
Second and third on generated bearing due to dipping of per-
iscope on loss of depth control.
Sound heard all torpedoes run.
All misses. Believed astern. Target undoubtedly noti-
fied by vessels attacked in attack #3 of our presence and had
gone to full power.

A T T A C K #5.

Date - November 9, 1942.
Latitude: 7 - 32.5 S.
Longitude: 157 - 07.5 E.
Type: ASASHIO class DD.
Torpedoes fired: Three from bow tubes.
| | #1 | #2 | #3
| Interval: | - | 5 sec. | 6 sec.
| Range: | 1300 | 1340 | 1370
| Point of Aim: | H.O.T. | H.O.T. | H.O.T.
| Gyro Angle: | 27° | 29° | 30°
| Track Angle: | 112° Stbd. | 113° Stbd. | 115° Stbd.
| Depth Setting: | 0 Ft. | 0 Ft. | 0 Ft.
Enemy estimated speed - 30 knots.
Fired at periscope depth setting bearings before each shot.
Sound heard all torpedoes run. Heard two explosions.
One hit just forward of mainmast seen by Commanding
Officer. One torpedo, #1 broached in middle of run.
Divergent spread applied on T.D.C. with 4° right on 1st
torpedo, 0° on second torpedo and 2° left on third torpedo.

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S E C R E T
_ _ _ _ _ _

— page 130 —
S E C R E T

Two explosions heard and first seen just a couple of
seconds after explosion. Target screws stopped and not heard
to start up again. It is felt that target sank, however im-
mediate depth charging prevented seeing target sink.

ATTACK #6.

Date - November 15, 1942.
Latitude: 7 - 37.2 S.
Longitude: 157 - 14.5 E.
Type: ASASHIO class DD.
Torpedoes fired: Three from bow tubes.
                  #1           #2           #3
Interval:         -            6 sec.       8 sec.
Range:            2500         2575         2630
Point of Aim:     M.O.T.       M.O.T.       M.O.T.
Gyro Angle:       30°          -            -
Track Angle:      110° Port    110° Port    110° Port
Depth Setting:    0 Ft.        0 Ft.        0 Ft.
Enemy estimated speed - 29 knots.
     Fired at periscope depth setting bearings before each shot.
     Divergent spread applied on T.D.C. 3° left, zero and 2°
right used.
     Sound heard all torpedoes run.
     All missed ahead. Believe speed estimate too high and
torpedoe run too great for this type of target.

8. Enemy A/S Measures.
   In general the measures encountered consisted of
dropping of depth charges with the first salvo aimed at the
impulse bubbles or offset from them in some manner. Then re-
sort was made to listening and further dropping of charges
based on individual contact or cross bearings. At no time
did vessels of the AMAGIRI or ASASHIO class use echo ranging.
No echo ranging was encountered on this patrol.
   As all vessels encountered were running at high
speed no effort was made to run silently during approaches.
Screens were penetrated, or rather, screens passed around us
while we were at periscope depth. By use of speeds below 3
knots and brief periscope exposures our periscope was not
sighted in any of the attacks started or completed. Our
impulse bubbles and torpedo wakes were the first indication
that the Japs had of our presence.
   Evasion was made at 200 feet running silently and
maneuvering to bring and keep attacking vessels sharp on the
quarter. Evasion of search by listening only is greatly
hindered by the hum of the main motors and the high pitched
squeal of the strut bearings. This is particularly true of
the starboard strut bearing. Below 210 feet the squeal gets
louder.

- 43 -
S E C R E T

— page 131 —
SECRET

During the last depth charge attack received all
indications were that larger charges than usual were being
used and the depth setting was greater than usually encounter-
ed. The reasons for the assumption are:
     1. Charges were dropped while the attacking
        DD was making much slower speed than usual
        as determined by the sound and speed of his
        screws.
     2. Two charges while they did not seem close
        rocked the boat appreciably and in a manner
        not previously experienced.
During one attack indications were that a depth
spread was being used. Two sets of two charges were heard to
go off almost simultaneously. One jarred the boat while the
second sounded higher up and did not jar the boat.
     A standard interval of five minutes was noted
between the firing of a torpedo and the explosion of the first
depth charge.
     During approaches the boat was rigged for depth
charge attack for ventilation and steering upon running battle
stations. This procedure speeds up the reduction of noise
for silent running after attacks and puts the boat in the
safest condition in case of aerial attack or depth charge
attack from a vessel not seen during an approach.

9. Major Defects Experienced.

     A. The major defect still continues to be the main
motor hum and the squeal in the strut and stern tube bear-
ings. An alteration calling for skew wound armatures has
been approved for the former. The latter should be reduced
by replacing with wood the present rubber strip bearings.
     B. The present arrangement where the upper conning
tower hatch is below the shelter space deck level is consid-
ered a serious defect. This hatch is always opened as soon
as the boat settles on an even keel on surfacing and water
always is taken down it wetting the glasses of the Command-
ing Officer and the first couple of men up the hatch. The
hatch coaming should project above the deck at least six
inches to prevent this. It is considered highly desireable
to alter the present hatch if practicable and to incorporate
this feature in new construction.
     C. With the present arrangement of the high pressure
bank and receiver manifolds it is necessary to secure all
high pressure air to work on the bow buoyancy, safety or neg-
ative tank blows. Also all air must be secured to work on
any air bank stop. By interchanging, on the manifold, one
bank lead and the emergency connection to the 600# blow mani-
fold air can still be kept on the 600# blow manifold for
emergency use while working on any of the blows mentioned
above. Also air can be kept on all systems from this one
bank while working on the bank stop valves or charging con-

- 44 -
SECRET

— page 132 —
S E C R E T

nections. It is highly recommended that this altoration, with-
in the capacity of forces afloat, be approved for this class
of submarine.

     10. Remarks.

          Radio reception was generally good. No difficulty
was experienced copying schedules and no serials were missed.
          Density layers were encountered only one time and
then at 150 feet. Flooding in of 3000 pounds was necessary to
get through this layer.
          Sound conditions were generally very good. At
night fish noises were particularly bothersome. One variety
of fish in this area sounds exactly like high speed screws and
caused us many anxious moments. This variety usually breaks
it's rhythm at intervals or whistles and then changes speed.
          One sound phenomena noted was that in these waters
with 30 knot DD screws the sound bearing will lag the peris-
cope bearing up to as much as 15°. This was noted particular-
ly with a column of three ships but holds for one ship. Con-
sequently the Commanding Officer does not consider firing by
sound alone justified under any conditions in this area.
          Another phenomena noted on sound was the picking
up of screws on reciprocal bearings. This was noted particu-
larly on one depth charge attack and led to some confusion as
to where our attackers were. Until the sound operators real-
ized that they were getting bearings and their reciprocals
two attackers astern seemed like four attackers surrounding
us.
          Habitability was good during the entire trip.
          Health was in general good. On two occasions
the Commanding Officer, three officers and 15 to 20 of the
crew were sick for two days with what seemed to be food
poisoning. This illness was similar to that experienced on
two occasions on the last patrol. It is felt that this ill-
ness was caused by the water as white crystals were found in
the water in the silex bowls. A complete chemical analysis
will be requested of these crystals upon return to port.
This sickness seriously affects the efficiency of the boat and
its recurrence, when special precautions were taken to pre-
vent it, is a matter of serious concern.
          This vessel is entirely self supporting in potable
and battery water with an average daily consumption of 350
gallons of the former. The use of showers was regulated and
instruction and indoctrination in regard to avoiding waste
of water is continuing.
          With the exception of the visits to VELLA LAVELLA
and CHOISEUL Island to land coast watchers and two days
spent in the southern part of the area near RUSSELL Island
the entire patrol was spent in the vicinity of VISUVISU Point,
NEW GEORGIA Island in the SOLOMON ISLANDS area. Routing to
and from the area was via geographical points and around the
southern tip of NEW GEORGIA.

                               - 45 -
                                                      S E C R E T

— page 133 —
42/A16-3
Serial 00120
CONFIDENTIAL
S-E-C-R-E-T

TASK FORCE FORTY-TWO
                                                              An
Care of Fleet Post Office,
San Francisco, California,
November 26, 1942.

From : The Commander Task Force Forty-two.
To : The Commander in Chief, United States Fleet.
Via : The Commander South Pacific Force.

Subject: U.S.S. GRAMPUS (SS207); Fourth War Patrol,
         Comment on.

Enclosure: (A) Copy of subject war patrol report.

1. Enclosure (A) is forwarded herewith.

2. The Fourth War Patrol of the GRAMPUS began
with her departure from Brisbane on October 7, 1942, after
having arrived from Fremantle, Australia, four days earlier.
The patrol covered a period of forty-seven days. Thirty-nine
of which were spent in the New Georgia - Choiseul Area. Four
enemy cruisers and seventy-nine enemy destroyers were sighted
in twenty contacts, which resulted in six torpedo attacks, only
two of which were partially successful by certainly damaging,
or perhaps sinking, one AMAGIRI and one ASASHIO class destroy-
er. Moderately severe depth charging was experienced after
four of the six attacks during which one hundred-four depth
charges were heard and felt. The Commanding Officer success-
fully evaded all attacks.

3. The Commanding Officer's deductions as to enemy
timing and routing were richly rewarded by the number of con-
tacts made. Clear and intelligent thinking and an aggressive
attitude characterized his entire patrol. The tactics employed
when in contact were correct, but it is evident that drill in
ship- and torpedo-control is urgently required to avoid repe-
tition of the too-frequent loss of depth-control and the too-
frequent personnel failures in torpedo-control indicated by
the report.

4. Radical, confusing, and frequent changes of
enemy course, noted in every contact, indicated that the enemy
was aware of or strongly suspected the presence of our subma-
rines. These maneuvers coupled with the high speed of the
enemy in the short run from the Shortlands to Guadalcanal was
the primary cause of so many torpedo misses.

5. The landing of the coast watchers on Vella La-
vella and Choiseul Islands was accomplished without casualty
or incident.

[STAMP: 44837 FILMED -1-]

— page 134 —
1 0169

TF42/A16-3                                        TASK FORCE FORTY-TWO
                                                                      dn
Serial 00120
                                            Care of Fleet Post Office,
                                            San Francisco, California,
                                                 November 26, 1942.
S-E-C-R-E-T
Subject:        U.S.S. GRAMPUS (SS207); Fourth War Patrol,
                Comment on.

— page 135 —
[STAMP: CONFIDENTIAL]
COMSOPAC FILE

A16-3(11)
Serial 00129c

[STAMP: CONFIDENTIAL]
SOUTH PACIFIC FORCE
OF THE UNITED STATES PACIFIC FLEET
HEADQUARTERS OF THE COMMANDER

jry
Reg. No. [HANDWRITTEN: 2614]
L.S. No. [HANDWRITTEN: 1 0169]
[HANDWRITTEN: DEC 12 1942]

FIRST ENDORSEMENT TO:
Comdr. T.F.42 Secret
ltr. TF42/A16-3, Serial
00120 of November 26, 1942.

From: The Commander South Pacific Area and South
Pacific Force.
To : The Commander-in-Chief, United States Fleet.

Subject: U.S.S. GRAMPUS (SS207); Fourth War Patrol,
Comment on.

1. Forwarded, noting the general completeness
and clarity of the report. Although the damage inflicted
on the enemy was not impressive, this is considered a well-
conducted patrol. Certainly the GRAMPUS should be a much
better submarine on its next patrol by virtue of the ex-
perience and information gained during this one.

2. Conspicuous is the fact that the commanding
officer was thinking all the time -- clearly and correctly.

[SIGNATURE: W.F. Halsey]
W. F. HALSEY

Copies to:
CNO
Cinclant
Cincpac
Comsowespac
Comsublant
Comsubpac
Comsubsowespac
CSS 6
Comsubdiv 61
CTF 42
C.O. GRAMPUS

[STAMP: COMMANDER IN CHIEF
U.S. FLEET
RECEIVED
1943 JAN 3
13]

[STAMP: FILMED]

CLASSIFICATION THIS CORRESPONDENCE
CHANGED TO [HANDWRITTEN: CONFIDENTIAL]
AUTHORITY [HANDWRITTEN: C.O.S.]
DATE [HANDWRITTEN: 1/3/43]

— page 137 —
SPECIAL INFORMATION (Cont'd)

Enemy Patrols (Cont'd)
Float type seaplanes were observed in the early morning (7-8)
conducting a search of the channel between Kolombangara Island and
Choiseul Island. (11/12)

Enemy Shipping:
The routing used from Faisi down through the Solomons and
return is such that ships usually reach a point east of Kolomban-
gara Island just before dusk and just after sunrise. They pass
Visuvisu (langdale) Point on the north New Georgia coast during
morning or evening twilight. (10/12)

Enemy Signals:
Sighted what appeared to be a 36 inch searchlight signalling -
apparently in Japanese - almost vertically from a position either
off the southeast tip of New Georgia or off Vangunu Island. (10/31)

Destroyers off Kolombangara Island were seen signalling with
a brilliant green light located halfway up the main mast. It is
possible that this light was trained on some shore station, although
no response from the island was observed. (11/18)

Sound Detection:
Sound layers are frequently encountered in the area between
the New Georgia Islands on the south and Choiseul and Isabel Islands
on the north. Upon entering one of these layers, the noise from
ships screws either fades out or seems to stop abruptly.

— page 139 —
[HANDWRITTEN: 1ST COPY]

S-E-C-R-E-T

A4-3/SS207

Serial 001

From: U.S.S. GRAMPUS
To : c/o Fleet Post Office,
San Francisco, Calif.
January 19, 1943.

Subject: The Commanding Officer.
The Commander Task Force FORTY-TWO.

Reference: War Diary, forwarding of.

Enclosure: (a) ComsubSowespacfor Serial 0150 of January
27, 1942.

(A) War Diary for Fifth War Patrol of U.S.S.
GRAMPUS.

1. In accordance with the provisions of refer-
ence (a), enclosure (A) is forwarded herewith.

[SIGNATURE: J. R. CRAIG]

[HANDWRITTEN: 46221]

— page 140 —
SECRET

U.S.S. GRAPUS
FIFTH WAR PATROL

Resume of operations, U.S.S. GRAPUS, prior to start of fifth
war patrol.

1. The U.S.S. GRAPUS arrived at Brisbane, Australia on
November 23, 1942 upon completion of her fourth war patrol.

A relief crew from the 82nd Division and the repair de-
partment of the U.S.S. FULTON conducted the refit in the period
November 24, to December 7, 1942.

The period from December 7, 1942 until start of current
patrol was utilized in loading torpedoes, provisions, fuel and lube
oil and completing repairs, adjustments and tests.

FIFTH WAR PATROL - NARRATIVE

December 14, 1942. 1st Day.

All times are zone -11 (L).

1400 Underway in accordance with Comtaskfor 42 Operation Order
S62-42 directing this vessel to conduct unrestricted warfare
against the enemy in Patrol Area ZED. Depart area for return
to Brisbane on January 26, 1943 at sunset.

1544 Passed Pile Lighthouse abeam to starboard. Began passage
through Moreton Bay.

1750 Pilot left the ship. Commenced passage through swept
channel.

2116 Passed through point VAN and set course for point BOX.

December 15, 1942. 2nd Day.

Underway on the surface proceeding to point BOX. Heavy
seas and high winds from southeast.

0507 Passed through point BOX and set course for point POND.

0850 Submerged to check trim and test for tightness. Remedied
several small leaks. Ran depth and torpedo control problems.

1012 Surfaced and resumed course for point POND.

2125 Passed through point POND and set course for point MILL.

Position 1200 Lat. 24 - 44.7 S Miles steamed 260.1
Long.154 - 50.3 E. Fuel used 2015 Gal.

- 1 -

— page 141 —
S E C R E T
December 16, 1942. 3rd Day.

     Underway on the surface proceeding to point HILL. Heavy
     seas and high winds from southeast.

0600 Passed through point HILL and set course for point RED.

1038 Submerged for training. Held fire control and depth con-
     trol drills.

1124 Surfaced.

1414 Submerged for training dive.

1426 Surfaced.

     Position 1200 Lat. 19 - 40.8 S. Miles steamed 335.1
                      Long.155 - 22.5 E. Fuel used 4020 Gal.

December 17, 1942. 4th Day.

     Underway on the surface proceeding to point RED. Moderate
     seas from East.

1030 Submerged for training. Held fire control and depth con-
     trol drills.

1115 Surfaced.

1300 Fired 60 rounds of 20MM ammunition for training.

1310 Submerged for training dive.

1335 Held battle surface. Fired 10 rounds of 3" training
     ammunition. Searchlight carried away and lost overside during
     dive.

1604 Submerged for training dive.

1621 Surfaced.

2150 Slowed to one engine and commenced swinging ship to check
     compass deviation. This is the first smooth water we have had
     since leaving port.

2300 Completed swinging ship, resumed course on 4 engines.

     Position 1200 Lat. 14 - 19.0 S Miles steamed 344.9
                      Long. 156 - 02.0 E. Fuel used 4985 Gal.

December 18, 1942. 5th Day.

     Underway on the surface proceeding to point RED.

0400 Passed through point RED and set course for point ONE.
                               - 2 -

— page 142 —
SECRET
Decided to continue surface running until 1400 unless forced
down by planes. Visibility excellent. In this way we will get
over four hours of submerged training for new men and can dive
and enter the area submerged at dawn December 19. By diving
all day today we would have to spend all day till the 19th submerged
and lose a day in the area. By diving before passing through
point ONE our ultimate destination is not disclosed in case of
sighting by enemy planes.

1355 Sighted flying fortress bearing 150° T. Submerged.
     Conducting submerged patrol and training of planesmen.

1710 Surfaced. Continued on course to point ONE.

2050 Passed through point ONE and set course for area. Run-
     ning on three engines at 16 knots.

     Position 1200 Lat. 9 - 25.7 S Miles steamed 374.3
               Long. 154 - 47.0 E Fuel used 5170 Gal.

December 19, 1942. 6th Day.

Underway on the surface proceeding to area.

0555 Submerged 13 miles south of area. Patrolling on course
     000° T. to run into the area.

During submerged operations periscope exposures are made
every 15 minutes with sound sweeps between. Depth is increased
to 110 feet between looks to avoid detection by planes.

1200 Entered area ZED at long. 153 - 13.6 E.

1815 While on course 000° T. sighted masts of ship with de-
     stroyer escort bearing 295° T., distant 13,500 yards, angle
     on the bow about 80° port. Swung immediately to normal ap-
     proach course and manned battle stations. Mast of a third
     vessel came in sight. As soon as normal approach course was
     reached an observation showed the target had zigged toward
     us 30° and the angle on the bow was 0°.

     Vessel later identified as 6,000 to 7,000 ton freighter
     with two ASASHIO class DD as escort, one ahead and one astern.
     Silhouette similar to that of ASAMA MARU, Page 69 of ONI 208-J
     except there were no kingposts. Instead there were two masts
     with booms topped up. Length about 450', tonnage estimated as
     6,000 to 7,000 tons. Believed to be oil-burning as stack was
     low and vessel was steaming smokeless at all times. All vessels
     zig-zagging simultaneously using radical zigs. Escorts patrol-
     ling 500 to 1000 yards from freighter and leading escort ping-
     ing on 17 kcs. using 11 second interval. Sea flat and oily
     with visibility excellent. Sun low and behind target in later
     stages of the approach.

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S E C R E T

Target was camouflaged with large unusual areas of vari-
colored dull paint, mostly greens, greys, and blues. This
camouflage not visible until range about 4,000 yards and not
at all effective under the conditions of the approach.

Position and general line of advance indicated this con-
voy headed for the new Jap base at MUNDA on NEW GEORGIA ISLAND
in the SOLOMONS.

1852 45 Fired the first of three torpedoes at the AK. Track
angle 100° port, torpedo run 2400 yards, target speed eight
knots, spread 2° divergent from aft forward. Firing interval
for second and third torpedoes 15 and 10 seconds respectively.
A zig away shortly before firing had opened the torpedo run
from 800 yards to the 2400 yards at time of firing.

1853 40 Fired first of three torpedoes at rear escort. Track angle
90° port, torpedo run 2600 yards, Spread 2° divergent was
applied to first and last torpedo. Second torpedo fired early
by error before 2° right spread was removed from T.D.C. Second
and third torpedoes fired at 5 and 10 second intervals respectively.
All torpedoes fired were heard and seen to be running hot, straight
and normal.
Rear escort seen to be turning very slowly to port toward
us. Leading escort seen to be turning rapidly to port toward
us so went to 200 feet at 1855 and completed rigging for depth
charge attack. Some day I hope to be able to stay up and
watch a ship sink.

1855 05 One hit heard and target screws stopped.

1855 40 Two more torpedo hits heard very close together. Later
analysis indicates the third torpedo of the first spread hit
the AK and the first two fired at the DD both hit.

1856 15 The first depth charge exploded at some distance followed
immediately by four well-placed and very close charges that
severely jarred the ship and personnel. Those charges laid
by the leading escort which passed over us from port to star-
board. All men in single hull compartments "saw red", torpedo
tube door wrenches, air manifold wrenches, and loose gear
bounced around, cork and paint flew in all directions, several
light globes were broken, and the steering wheel in the control
room was unclutched and bounced out. The JK sound equipment
was disabled on this attack.

After this initial attack the AK could be heard breaking
up by the QC sound operator with the usual sound of internal
explosions, collapsing bulkheads and associated grinding and
tearing noises.

1920 The last of a total of thirteen depth charges exploded.
During the depth charge attack the screws of only the one
attacking destroyer were heard.

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SECRET

The loss of the use of the JK sound equipment seriously
hampered the efforts to obtain information and train operators
as the QC equipment was used to constantly track our attacker
with all around sweeps at intervals. Normally after the init-
ial depth charge attack the JK is manned by the least experi-
enced sound operators for training purposes and to allow the
best operator, on the QC, to make frequent sweeps to keep track
of what is happening toward the target.

Shortly after the last depth charge the attacking DD was
heard to stop. His screws remained stopped for some time and
it was presumed he was picking up survivors. They later
started up and drew away to the southwestward.

During this time no effort was made to return to peris-
cope depth to attack the remaining DD as it was dark on the
surface (sunset 1858) and we had no torpedoes in the bow tubes.

1950 All sounds of screws had faded. The T' receiver was back
     in commission after replacement of a broken tube and two fuses
     that had jumped out of their clips.

2000 Periscope depth. Nothing in sight. Bright moonlight,
     visibility excellent. Pumped down the pressure in the boat
     and commenced reloading, checking each torpedo, and topping
     off as necessary prior to loading. Three exploders aft found
     to be flooded. Two so badly flooded that they must be used
     as contact exploders only.

On reloading #6 tube the torpedo jammed after partially
entering. On withdrawing the torpedo it was found that the
firing valve check valve had dropped into the tube and jammed
the torpedo. This valve was to badly bent to reinstall and
no spare is carried on board. No damage was done to the war-
head.

2255 All tubes reloaded and all torpedoes aft checked. Sur-
     faced. Nothing in sight. Set course 000° T. to run farther
     into the area and started battery charge.

Position 1200 Lat. 6 - 00 S. Miles steamed 237
               Long. 153 - 13.5 E. Fuel used 2715 Gal.

December 20, 1942. 7th Day.

Patrolling on course 000° T. on the surface.
0435 Sighted NEW IRELAND bearing 330° T.
0530 Submerged. Commenced submerged patrol on course 100° T.
0920 Sighted Jap Flying Boat 97 bearing 040° T. course 130° T.
       distant 10 miles.

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1000 Sighted ASASHIO class DD bearing 034° T. range 12,000
yards, angle on the bow 90° port, course 310° T. Swung immed-
iately to normal approach course in the hope of a zig. DD
maintained course and rapidly drew out of sight. Resumed
patrol on course 180° T.

1406 Passed through large area of floating wreckage. Life
jackets, portion of a mast and miscellaneous debris noted.
This was apparently from our attack of last night as the pos-
ition wreckage with the position wreckage should be.

1940 Surfaced. Set course 060° T. to head into the path of
the moon and to work to the eastward in the area. Surface patrol
speed six knots. # 3 main engine outboard exhaust valve found
to be jammed shut due to last night's depth charge attack.
This is an experimental valve with a 75° taper. Inspection
showed no external parts broken and valve was finally opened
under combined hydraulic and hand pressure.

2300 Came to course 000° T. to reach a point about thirty miles
southeast of CAPE ST. GEORGE by diving time.

From all available information traffic through this area
goes on course 310° T. and reverse to the SHORTLAND area and
from 130° T. to 140° T. to MUNDA. For a few days we plan to
patrol on course 000° T. at night and 180° T. during the day
starting at about 5° south for submerged patrol. This is the
the line east or west each day. A southerly course submerged
is chosen to take advantage of the southerly set. This plan
seems to give the best coverage of the available traffic lanes.

2343 Sighted three large vessels in column bearing 252° T.
on approximate course 130° T. Visibility excellent, moon nearly
full. Swung right with full rudder to parallel course. Prior
to completion of swing, vessels tentatively identified as three
large AP and four DD as escort. Escort disposed one
ahead, one astern and one on each flank of convoy.

2345 Submerged. Convoy seemed to be zigging toward us and
range estimated as 6000 yards. Manned battle stations and
steadied on course 160° T. unable to pick up targets in per-
iscope or on sound.

Position 1200 Lat. 5 - 24.6 S. Miles steamed 97.1
Long. 153 - 10 E. Fuel used 630 Gal

December 21, 1942. 8th Day.

Submerged endeavoring to pick up convoy.

0013 All clear on sound and by periscope. Surfaced. In retro-
spect the commanding officer realized that he erred in not
remaining on the surface longer and running at high speed
endeavoring to determine target's course and speed and to
attain a position ahead prior to diving. Range was underesti-

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mated. Also in retrospect it is believed targets were making
20 - 25 knots. Luminous wakes were seen astern of port flank
DD and leading DD indicating high speed. Convoy must have
left RABAUL after dark and at 20 knots would reach the SHORT-
LAND area just about sunrise.

Surface patrol on course 000° T. resumed.

0114 Sighted two columns of smoke bearing 330° T., range about
     17,000 yards. Increased to standard speed, two engines, and
     headed for smoke. Soon identified as puffs from one vessel
     making large puffs of black smoke at regular intervals.

0121 Vessel appeared to be small patrol vessel of some sort.
     As range was estimated at 5,000 yards, angle on the bow 0°,
     relative bearing 0°, submerged to continue closing. Bright
     moonlight prevented closer surface approach.

     Vessel picked up in periscope after diving and by sound
     shortly afterwards. High speed screws making about 15 knots
     but slowing at intervals. Angle on bow made out to be about
     15° starboard. Came to normal course. Vessel was tentatively
     identified, after it had crossed ahead, as about 400 tons
     similar to the minesweepers shown on page 323 of Jane's Fight-
     ing Ships.

     No attack was made as the target was not of sufficient
     value to warrant the expenditure of three torpedoes. Such an
     expenditure would be necessary to insure one hit where the
     range and speed were so uncertain incident to ranging at night
     on an unidentified target. Course found to be 155° T. and
     minimum range 2,000 yards determined by run to his track. With
     such a range and a draft of 6 feet as given in Jane's our tor-
     pedoes would have been wasted to no advantage.

0200 All clear. Surfaced and continued patrol.

0540 Submerged and commenced patrol on course 100° T.

0623 Sighted puffs of smoke, similar to those seen earlier,
     bearing 006° T. Came to normal approach course 090° T. As
     bearing was changing very slowly did not increase speed. If
     vessel should be a patrol boat he was not worth a long chase.
     If a larger vessel his masts should show soon enough to enable
     us to speed up and close.

0645 By exposing 15 feet of periscope made out two masts one
     each side of smoke. Increased to standard speed to endeavor
     to close. Vessel assumed to be on course 130° T. for the
     SHORTLAND area. While this course and the attitude of his
     masts indicated a large angle on the bow an 8 knot target
     speed might allow us to close. If he was zig zagging there
     was a good chance to close.

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S E C R E T

0930 After looking every half hour and running constantly at
     standard speed, the TDC showed a track of 116° starboard and the
     target was still hull down. No chance to close and no indica-
     tions of a zig. As no escort had been sighted the chase was
     abandoned with deep regret. Due to our position in the close
     proximity to the enemy bases of RABAUL, ULM, and KISI did
     not feel that a surface chase in daylight was warranted.

     Resumed patrol on course 180° T.

1935 Surfaced. Set course 000° T.

2230 Changed course to 338° T. to reach a point about 15 miles
     due east of Cape St. George by diving time in the morning.

     Our sightings to date coupled with all available informa-
     tion indicates a patrol on course 180° T. from latitude of Cape
     St. George cuts all routes from RABAUL to the Solomon Island
     area and contacts depend on being in the right spot at the
     right time. Near approach to Cape St. George is not considered
     advisable due to the bright moonlight and lack of information
     on the charts of this area.

     Position 1200 Lat. 05 - 19 S. Miles steamed 110.1
                       Long. 153 - 37 E. Fuel used 420 Gal.

December 22, 1942. 9th Day.

     Patrolling on the surface on course 338° T.

0540 Submerged 15 miles east of Cape St. George. Commenced
     submerged patrol on course 180° T.

     On the initial dive no ative tank flood valve was damaged
     or the gasket blown out. While not fatal this defect will
     cause some inconvenience during future operations.

1934 Surfaced. Set course 060° T. into the moon's path. Com-
     menced working on negative flood shortening the linkage to try
     to make it hold.

2200 Came to course 090°

     Negative flood still leaking slightly.

     Position 1200 Lat. 05 - 05.3 S. Miles steamed 109.0
                       Long. 153 - 11 E. Fuel used 345 Gal.

December 23, 1942. 10th Day.

0025 Came to course 270° T. to reach a point 25 miles south of
     Cape St. George and 10 miles from western boundary of area for
     start of submerged patrol.

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0541 Submerged. Started patrol on course 150° T. to cross
     traffic lanes at a 20° angle.

     After experimenting with negative, which still floods, de-
     cided to patrol at periscope depth and ride negative vent. In
     this way we still have the use of negative if forced to deep
     submergence.

1226 Sighted masts of ship bearing 079° T., range estimated at
     19,000 to 20,000 yards. Angle on the bow about 50° port. Came
     left with full rudder to normal approach course as crows nest
     indicated target headed for RABAUL. Increased speed to standard.

1240 Target identified as AK with two DD escorts. One ahead and
     one astern. Formation identical to that encountered on December
     19th. Destroyers later identified as ASASHIO class, AK similar
     to that sunk on December 19th.

     Normal approach course with high speed between looks con-
     tinued until 1326 when target passed ahead at a range of 5500
     yards. Target speed 8 knots. Firing at this range considered
     inadvisable even though data was good.

     Range bearing plot indicated target on the extreme left leg
     of his zig plan with base course 303° T.

1326 Gave up attempt to close AK and started approach on rear
     escort.

     During latter stages of approach escorts had both drawn
     over to the port side of the target. Both escorts were pinging
     at 11 second intervals on 17 kcs and both had been bearing
     directly on us. Automatic keying seemed to be used throughout.

1353 Abandoned attempts to close escort when minimum range ob-
     tained was 4,000 yards. Resumed patrol on 150° T.

     During the period 1326 to 1353 we were able to closely
     observe a Jap destroyer escort at work. Speed alternated be-
     tween stop and 12 knots. Patrolling was carried out using
     radical course changes up to 90°. No course maintained very
     long. Pinging constant and automatic on 17 kcs using 11 second
     interval. As both escorts stayed, during the latter stages of
     the approach and until out of sight, on the port side of the AK
     1,500 to 2,000 yards from track it is believed they had made
     contact with us or at least had had their suspicions aroused.

     This formation for escorts is most annoying. You always
     have one nearly bows on and to keep track of both when the range
     is small requires additional length of periscope exposure and a
     large angular sweep each side of the target. With our system of
     one on each bow, as soon as the escort has passed you can concen-
     trate on the target knowing the escort must reverse course to

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attack. With the Jap system the rear escort is tagging along
ready to head for an attacking submarine with just a small
course change and large speed increase and the sub must keep
an eye on him or have a nice approach spoiled by a depth charge
barrage.

1927 Surfaced, set course 130° T. to run down to southern
boundary of area.

Received message from Task Force Commander for all subs
to take special precautions against special Jap anti-submarine
measures tonight and tomorrow night. Also received information
from my predecessor in this area as to currents in the vicinity
of CAPE ST. GEORGE. No further information on traffic.

By remaining in the southern part of the area for two
nights any enemy counter measures will have the longest way to
run to contact us and daylight patrol can be made to cover the
southwest corner of the area where the major portion of the
enemy traffic seems to run.

2236 Came to course 090° T.

Position 1200 Lat. 05 - 28 S. Miles steamed 118.
Long. 153 - 08 E. Fuel used 440 Gal.

December 24, 1942. 11th Day.

Patrolling across traffic lanes.

0300 Came to course 325° T. to run up to diving position.

0536 Submerged and commenced patrol on course 290° T. to angle
across traffic lanes at a 20° angle.

1936 Surfaced. Set course 090° T. Sea oily calm. Visibility
poor.

2250 Changed course to 010° T. to reach diving position Lat.
5° S. in the center of area to patrol on southerly course.

Position 1200 Lat. 05 - 38.2 S. Miles steamed 113.6
Long.153 - 10.4 E. Fuel used 340 Gal.

December 25, 1942. 12th Day.

Patrolling on the surface. Intermittent heavy rain squalls.

0543 Submerged and commenced patrol on course 180° T.

0733 Sighted masts of two ships bearing 265° T., range estimated
at 15,000 yards. Went ahead standard speed to close on normal
approach course.

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0815 Bearing remaining nearly constant and vessels hulls in
     sight. Manned battle stations. Range estimated at 12,000
     yards, angle on bow 35° port. Continued high speed running
     between looks.

0845 Vessels identified as small trawlers heavily covered with
     camouflage and not large ships as they had appeared to be.
     The largest one was about 200 feet long with three masts and
     single stack between second and third mast. Tonnage about 700
     to 1,000 tons.

     Smaller one similar to a tuna boat of 150 feet length
     with deck house well aft. Tonnage about 300 to 500 tons.

     Both vessels covered with weeds, grass or netting to dis-
     guise silhouette. Bushes were fastened to masts. This camou-
     flage would enable them to lie against shore unseen. Vessels
     were not zig zagging and, as they were in line of bearing, the
     possibility was considered of their having a drag between them.
     No guns could be seen but the heavy camouflage prevented making
     out details topside.

     Neither vessel was considered of sufficient value to fire
     a torpedo at it. With their shallow draft and most probable
     wood construction detonation of a torpedo would be highly un-
     likely.

     A gun attack in daylight only 20 miles from RABAUL was
     considered to involve a risk that was not commensurate with
     the value of the target.

     The sketches below are the best approximation the Command-
     ing Officer can make of the silhouettes of these vessels.

[HANDWRITTEN: Bushes]

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S E C R E T

the stacks. This may be a new design built for carrying and
landing troops.

-0950 Resumed patrol on course 170° T.

1011 Sighted AP of 6,000 to 8,000 tons with two ASAS-IO class
DD escort bearing 171° T. distant 9500 yards, angle on bow 15°
starboard. Poor visibility prevented earlier sighting.

Came to normal course and increased speed. Escorts dis-
posed 2,000 yards on each bow patrolling. Not heard to be
pinging. Target zig zagging radically. Picked up on the
extreme right of his zig plan for he zigged left and worked
around us with a minimum range of 4,000 yards. Although speed
checked at 11½ knots and set up on T.D.C. seemed accurate,
considered this too great a range to take a chance on firing.

As we were only about twenty miles from our western
boundary there was no chance to haul out and surface to run
ahead and make a second approach. Such an attempt would have
put us in the mouth of ST. GEORGES CHANNEL where another boat
is operating.

Vibration of the approach periscope seems to be getting
worse. As soon as the speed exceeds three knots observations
are practically impossible. During high speed running in the
initial stages of the approach no observations can be taken
without slowing down. During the latter stages speed must be
kept below three knots to make quick observations of target and
escort. Without this vibration higher speeds could be used,
if necessary, in the last stages of the approach and quick looks
taken with little chance of sighting. This defect was not so
pronounced on the last patrol (the present commanding officer's
first patrol in this vessel) as all targets sighted were making
30 knots and high submerged speed was not used.

Water was found to be coming out of the firing valve drain
of number six tube while the tubes were ready for firing on this
approach. As this is the tube with no water check valve we
intend, in the future, to make it ready at the last minute to
prevent premature firing.

Another exploder flooded today. Now have three contact
exploders, one forward and two aft.

1050 Resumed patrol on course 170° T.

1200 Changed course to 150° T. to avoid being set into the
adjacent area.

1940 Surfaced and set course 090° T. to work to the eastward.

2230 Changed course to 350° T. to patrol across the traffic
lanes to diving position.

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Position 1200 Lat. 5 - 31.3 S. Miles steamed 113.7
Long. 153 - 13.5 E. Fuel used 450 Gal.

December 27th, 1942. 14th Day.

Patrolling on the surface.

0100 Received a despatch from the Task Force Commander direc-
     ting us to extend our area to include area ROGER as well as ZED.

     The decision was made to conduct our scheduled north south
     patrol from near the center of area ZED as planned for today.
     Upon surfacing tonight will decide what locality to patrol
     tomorrow.

0226 Sighted two aircraft flares bearing 290° T. which dropped
     well below the horizon before going out. Plot indicated they
     were in the vicinity of MDE BAY, NEW BRITAIN.

0545 Submerged. Negative tank was being blown the gasket
     between the regulator valve and the hull blew out. At the same
     time power was lost on the bow planes. Lieutenant Shisa who
     had the diving watch did a commendable job of leveling off and
     maintaining depth until repairs were effected.

     Our leaky negative flood complicated an otherwise simple
     gasket renewal job. The trim pump running at full speed was
     just able to keep ahead of the flooding until the tank was
     vented and the gasket renewed.

0630 All repairs were completed and patrol was started on
     course 180° T.

0931 Sighted reconnaissance bomber 95 bearing 229° T. on course
     250° T. distant seven miles.

0946 Sighted two engine bomber of unidentified type bearing
     090° T. on course 180° T. distant eight miles.

1709 Changed course to 080° T.

2030 Received despatch information from the Task Force Commander
     of coming dawn air raids on RABAUL and the possibility of
     these attacks causing a dispersal of vessels out of the harbor
     where we, and the SPEARFISH to the northward, can get at them.

     From a study of the chart it would seem that the only way
     we can benefit from a dispersal would require entering ST.
     GEORGE'S CHANNEL and penetrating well up toward RABAUL.

     It is known that there are considerable enemy surface anti-
     submarine patrols in this channel as well as air reconnaissance.

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-
Currents are high and variable. With negative tank flood
valve leaking it is not considered advisable to enter this
channel to patrol.

2130 The daily information bulletin from the Task Force Com-
mander indicates a convoy of three ships is due in RABAUL at
2200 tomorrow from the SHORTLAND area and one vessel is to
proceed from BUIN to RABAUL on December 30. Plan to patrol
from a point twenty miles south of CAPE ST. GEORGE on course
145° T. in the hope of intercepting this convoy. Believe
this may be the same convoy sighted the night of December 20
and that they will use the same route returning as they are
going. Trying to plan an interception in this area where the
possible routes vary is most difficult.

2130 Changed course to 130° T.

2330 Changed course to 320° T. to proceed to diving point.

Position 1200 Lat. 5 - 27.1 S. Miles steamed 112.5
Long. 153 - 27.4 E. Fuel used 440 Gal.

December 28, 1942. 15th Day.
-
Patrolling on the surface in heavy rain.

0500 Sighted enemy DD bearing 070° T. distant about 4,000
yards, angle on the bow 20° port, coming out of a slick rain
squall. Turned away with full rudder. Horizon behind us very
clear but wanted to stay up and see if this was the escort
for a convoy. Brilliant flash of lightning showed two DD in
column with leader turning toward us.

0501 Dove and went to 150 feet. Rigged for depth charge attack.
Sound picked up screws of DD immediately after diving. The
second vessel passed directly over us but no depth charges
dropped. No other screws heard.

0525 All clear on sound except for noise of rain.

0535 Periscope depth. Heavy rain in all directions except
to northward and horizon very poor there.

Came to course 145° T. to patrol.

1043 Sighted reconnaissance bomber 95 bearing 065° T. on
course 280° T. distant two miles.

1200 Not having made contact with convoy changed course to
000° T.

1400 Changed course to 270° T.

1600 Changed course to 180° T.

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1938 Surfaced. Patrolling on course 180° T.
2057 Changed course to 070° T.
2206 Changed course to 000° T. to run up to diving point.
       Plan to dive at Lat. 5° south on the boundary between area
       ZED and ROGER and run on course 270° until noon then reverse
       course.

       Position 1200 Lat. 5 - 27.2 S. Miles steamed 108.2
                         Long. 153 - 01 E. Fuel used 420 Gal

December 29, 1942. 16th Day.
       Patrolling on course 000° T.
0530 Submerged and commenced patrol on course 270° T.
1200 Reversed course to 090° T.
1941 Surfaced.
0115 Changed course to 100° T. to patrol along the traffic lane
       to BUKA.

       Position 1200 Lat. 04 - 59 S. Miles steamed 112.3
                         Long. 152 - 30 E. Fuel used 415 Gal.

December 30, 1942. 17th Day.
       Patrolling on the surface on course 100° T.
0115 Changed course to 285° T.
0536 Submerged to patrol along the lane to BUKA to intercept
       the MARU reported leaving for RABAUL today.

       Came to course 100° T.

       Weather overcast with occasional rain squalls.

1625 Sighted Lockheed 14 bearing 70° T. on course 130° T.
       distant one mile, altitude 500 feet.

1652 Sighted plane similar to Douglas DC3 bearing 230° T. on
       course 140° T.

1929 Surfaced. Set course 220° T.
2149 Changed course to 270° T.
2337 Changed course to 296° T. to head up for a diving posi-
       tion on Lat. 5° S. across the mouth of ST. GEORGE'S CHANNEL

       Position 1200 Lat. 5 - 03.2 S. Miles Steamed 112.3
                         Long. 153 - 25 E. Fuel used 440 Gal

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December 31, 1942. 18th Day.

Patrolling on the surface across the traffic lanes.

0157 Sighted smoke bearing 254° T. distant about 12,000 yards.
     Went to two engine speed and headed for the smoke to close it.
     Later tentatively identified as a 6,000 ton AK with a DD or
     corvette escort ahead.

     Although we were directly in the moon's path as seen
     from the target the horizon behind us was poor and clouds put
     us in the shadows at intervals.

     Various courses at various speeds were steered to keep
     a small silhouette presented to the target and work around the
     moon.

     Target was seen to be zig zagging radically just as in
     daylight.

     We passed astern of the target and at 0231 steadied on
     course 120° T. which, with a zig just completed, gave a 90°
     starboard track.

0241 With range estimated at 2,000 yards commenced firing. Tube
     #2 failed to fire electrically or by hand. (Later investigation
     showed that the pivot pin for the hand firing key had worked
     out allowing the key to drop out. Had it dropped clear the tube
     would have fired electrically. Instead it jammed in such a
     manner that the solenoid could not function.)

     Before a second tube could be fired the Commanding Officer
     ordered cease firing and slowed to 1/3 speed as the target was
     seen to be turning rapidly away from us. It was thought this
     was a zig away but subsequent maneuvers indicated we had been
     sighted.

0245 With an angle on the bow of 120° port fire was resumed
     and one torpedo fired.

0245 15 A second torpedo was fired. At this time the Commanding
     Officer saw the torpedoes going out with a right gyro angle
     and cease firing was ordered. Course was changed to the left
     with full rudder and speed increased to avoid the escort and
     possibly get another shot.

     Later investigation indicated a failure of our communica-
     tion system between bridge and TDC operator resulted in the
     target's turn away not being set on the TDC. The 120° angle
     on the bow reached him but not the fact that it was port and
     not starboard. Such a failure will not reoccur. This was the
     Commanding Officer's first night surface firing.

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0249    The escort had turned and was heading directly for us
        and the target was turning tail to us again so dove and went
        to 200 feet and rigged for depth charge attack.

        A shot on 180° track was not considered advisable. To
        surface as soon as possible and chase would give a better chance
        of success.

0251    First depth charge exploded.

0257    Last of a total of five depth charges exploded. None
        very close.

0315    Started to come to periscope depth when sound picked up
        what seemed to be high speed screws on the starboard beam.

0330    As neither true bearing nor intensity of this sound had
        changed decided the sound was from fish so started to peris-
        cope depth, checking ascent at 100 feet to listen carefully
        all around.

0345    All clear. Surfaced and went ahead on four engines to
        pick up the target and either make another surface attack or
        run around and dive for a submerged attack by daylight.

0401    Target picked up bearing 130° T. As visibility conditions
        had improved considerably and the moon was quite bright it
        was decided that the best chance of success lay in running
        around the target, maintaining sight contact, and diving on
        his track for a submerged daylight attack. Various courses
        were steered at 16.8 knots to pass around the target to the
        southward maintaining contact by his frequent, heavy black
        smoke clouds. After daylight course was changed away whenever
        his masts came in sight as his radical zigs could bring us into
        sight of his lookouts rapidly once the tips of his masts
        showed on the horizon.

        During this run bearings of his smoke were taken frequently
        and a time bearing plot run from our attack position to endeavor
        to ascertain his speed of advance and base course as nearly
        as possible. Speed of advance estimated as ten knots and base
        course 130° T.

0551    The loss of the use of #2 main engine due to a leaky
        air starting valve in #15 unit reduced our speed one knot to
        15.8 knots.

0954    Having reached a position ahead of the target submerged
        and ran on course 130° T. waiting for target to come in sight.

1450    Masts in sight. Angle on bow 80° port. Came immediately
        to normal approach course at standard speed. From this time
        until the chase was abandoned high speed running on the normal
        approach course was resorted to except at one time when the
        angle on the bow was zero. With zero angle on the bow we ran
        with the target.

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1250 Chase was abandoned. Target had run around us with his
radical zig zag plan and the minimum range obtained was 3,000
yards. To chase a vessel on the surface for five and one half
hours, the last three of them in daylight, and then have him
go around you because of his radical zig plan and speed is
heart-breaking.

Vessel identified as a 6,000 ton AK similar to the YOMORI
MARU with a sub-chaser escort. Speed checked at 11½ knots.
Start pinging continuously on 17 kcs. at 4 to 8 second interval
until 1200. No pinging after that. Either the operator had
gone to lunch or the gear had broken down.

Further chase was considered inadvisable. We were well
south of our area and would have to run for about six hours
in daylight on the surface to get ahead of the target. This
run would have put us into area LOVE WEST and about sixty miles
from the SHORTLAND area.

Came to course 320° T. and headed back up to our area.

1430 Seven dull explosions, thought to be aerial bombs, were
heard. Increased depth to 150 feet and changed course.

1500 Returned to periscope depth. Nothing in sight. It is
hoped these bombs successfully dropped on our morning target.

1930 Surfaced. Patrolling on the surface to reach a diving
position at 5° south in the mouth of the channel.

Received COMTASKFOR FORTY TWO routine despatch 310200
which we cannot break. This must be serial #72 B which is
missing.

Position 1200 Lat. 06 - 26 S. Miles steamed 185
Long. 153 - 53.4 E. Fuel used 1670 Gal.

January 1, 1943. 19th Day.

Patrolling on the surface.

0527 Submerged. Commenced patrol on course 270° T. across the
channel.

Weather overcast with intermittant rain squalls all mor-
ning.

1330 Reversed course to 090° T. Weather improved.

1730 Came to course 180° T.

1932 Surfaced and set course 160° T.

2145 Changed course to 090° T. across traffic lanes.

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— page 159 —
S E C R E T

2345 Changed course to 000° T. across traffic lanes.

COMTASKFOR FORTY TWO routine despatch 310200 repeated
exactly as before on both broadcasts tonight. We have tried
all combinations of set ups and still cannot break it.

Position 1200 Lat. 05 - 00.5 S. Miles steamed 129.1
Long. 152 - 29 E. Fuel used 650 Gal

January 2, 1943. 20th Day.

Patrolling on the surface across the traffic lanes.

0245 Changed course to 270° T. to run out of the moon to divir
position.

0435 Changed course to 329° T. Fix showed us south of position
we picked for diving.

0532 Submerged and started patrol on course 270° T.

0733 Sighted plane, either flying fortress or MITSUBISHI 97
bearing 094° T. on southerly course.

0933 Changed course to 090° T.

1630 Changed course to 270° T.

1903 Changed course to 180° T.

1943 Surfaced on course 135° T.

A plot of our sightings to date indicates that a north-
south patrol submerged and surface starting at 5° south lat-
itude and 153° 10' longitude should give the best results.
Plan to patrol on this line for at least three days before
making any more changes.

2330 Changed course to 090° T.

Position 1200 Lat. 05 - 03.2 S. Miles steamed 113.3
Long. 152 - 32.8 E. Fuel used 410 Gal

January 3, 1943. 21st Day.

Patrolling on the surface across the traffic lanes.

0130 Changed course to 000° T.

0430 Changed course to 270° T.

0530 Submerged and started patrol on course 180° T.

0645 Sighted Japanese Heavy Bomber #96 bearing 005° T. on
course 310° T., distant four miles.

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2241 Slowed to six knots in our own area.
2310 Set course 290° T. to reach a diving point seven
     miles west of CAPE ST. GEORGE to patrol along the NEW IR-
     LAND coast. Will spend two days on the NEW IRELAND side
     to see if traffic is running close in shore and then shift
     over to the NEW BRITAIN side to check on traffic there.

     Position 1200 Lat. 05 - 18.4 S. Miles steamed 103.3
                       Long. 153 - 01.8 E. Fuel used 450 Gal

January 6, 1943. 24th Day.

     Patrolling on the surface.

0530 Submerged. Commenced patrol on course 340° T. parallel
     to the NEW IRELAND shore.

1302 Changed course to the right to 150° T. Heavy south-
     erly current prevents making much headway up the channel.

1527 Changed course to 090° T.

1943 Surfaced.

2245 Changed course to 270° T.

     Plan to dive near mid channel west of CAPE ST GEORGE
     and run over toward the NEW BRITAIN coast. Information from
     plane sightings indicates a large convoy passed through the
     channel today and must have gone down the other coast.

     Position 1200 Lat. 04 - 45.5 S. Miles steamed 111.1
                       Long. 152 - 41.3 E. Fuel used 650 Gal

January 7, 1943. 25th Day.

     Patrolling on the surface.

0137 Changed course to 239° T.

0530 Submerged. Commenced patrol on course 300° T.

0805 Changed course to 000° T.

0907 Sighted squadron of twelve Flying Fortresses bearing
     037° T., course 135° T., distant nine miles.

1317 Sighted Reconnaissance Bomber 95 bearing 063° T. on
     course north, distant two miles.

1422 Sighted unidentified low wing monoplane bearing 336° T.,
     course north, distance one and one half miles.

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S E C R E T

1452 Sighted submarine bearing 341° T., distant 6,000 yards,
     angle on the bow 45° port.

     Came to normal approach course at high speed and manned
     battle stations.

     Sub identified as a new type. Similar in profile to the
     I 124 class except the gun is mounted aft as ours is. A
     heavy underwater loop antenna is run on the clearing wires
     aft from the bridge structure to the stern. The bow has the
     flare of the I 124 class but no cable cutters mounted. A
     Japanese merchant flag is painted on the side of the conning
     tower fairwater. The front of the conning tower fairwater has
     a rolled edge at the top similar to our motor boat canopies.
     There are no periscope bearings above the top level of the
     bridge rail. Colors flown aft were sighted as soon as the
     bridge came into sight. Target zig zagging radically.

1520 Secured from battle stations. Target passed ahead on
     130° port track at a range of 4,300 yards. Propellors going
     too fast to get a turn count on sound. With only infrequent
     looks due to high speed no accurate speed data obtained on
     TDC. Range too great for high speed shot and range and
     track too great for low speed shot. They can't all get by
     though so we will stay in this area and try to get one or more
     subs.

1525 Resumed patrol on course 000° T.
1627 Changed course to 180° T.
1728 Changed course to 000° T.
1825 Changed course to 320° T.
2001 Surfaced. Set course 215° T.
2102 Changed course to 035° T.
2115 Changed course to 090° T. to patrol across the channel.

     Position 1200 Lat. 04 - 52.5 S. Miles steamed 103.7
                      Long. 152 - 26.5 E. Fuel used 488 Gal.

January 8, 1943. 26th Day.

     Patrolling on the surface.

0115 Changed course to 312° T. to run to diving position eight
     miles off NEW BRITAIN.

0530 Submerged. Commenced patrol on course 000° T. Five
     miles off shore.

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S E C R E T

0645    Changed course to 045° T.
1050    Changed course to 000° T.
1900    Changed course to 160° T. to clear land before surfacing.
1951    Surfaced.
        A current of two knots on 189° T. was encountered during
        the day submerged.

2007    Set course 090° T. to patrol across the mouth of the
        channel while charging.

2345    Changed course to 270° T.

        Position 1200 Lat.    4 - 47 S. Miles steamed 110.2
                       Long. 152 - 33 E. Fuel used    545 Gal.

January 9, 1943. 27th Day.

        Patrolling on the surface.

0400    Changed course to 010° T. to run up to a position five
        miles off the coast for diving. Jap subs apparently come down
        and go up from two to five miles off the coast near ADMIR
        BAY. Believe surface ships use this same lane although none
        have been sighted as yet.

0529    Submerged and started patrol on course 020° T.

1406    Sighted Jap sub bearing 208° T., distant 7,000 yards,
        angle on bow 45° starboard, course 005° T.

        Manned battle stations and came to normal approach course
        at high speed.

1421 10 Fired the first of three torpedoes on 120° starboard
        track 3½ right gyro angle torpedo run 3,100 yards. The sec-
        ond and third torpedoes were fired with eight second firing
        interval using a 2° divergent spread, spreading from aft
        forward. All apparently missed ahead.

1424    Depth charge explosion heard fairly close, apparently
        dropped from a plane. Went to 150 feet and rigged for depth
        charge attack.

1427    Two more depth charge explosions heard.

1427 45 Three torpedo explosions heard. These may have been our
        torpedoes exploding at the end of their run although we have
        never heard our misses explode.before. Shortly after this two

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SECRET

swishing noises believed to be torpedoes were heard to pass
over us and later explosions at some distance were heard.
These were not heard by the sound men. Deep submergence
after missing a Jap sub is definitely indicated by this if
these were torpedoes. Several additional explosions were
cannot be accounted for were heard after this.

1430 One very loud sharp explosion heard apparently overhead.
     Believed to be an aerial bomb.

1443 Returned to periscope depth. Nothing in sight. Resumed
     patrol on course 020° T.

     This sub was identical in type to that sighted on Jan-
     uary 7 and may have been the same one returning from his
     trip.

     While this attack was made from long range the target was
     not zig zagging and speed checked well on the T.D.C. The
     chance was considered worth the expenditure of the torpedoes
     used.

1705 Changed course to 200° to clear our firing area and enter
     the mouth of WIDE BAY to patrol during the night.

1949 Surfaced. Set course 250° T. to run into WIDE BAY. A
     patrol on 020° T. - 200° T. here, six miles from the traffic
     lane gives us a land background and the chance to silhouette
     any passing traffic.

2330 Commenced patrol on 020° T. - 200° T. reversing course
     every hour.

     Position 1200 Lat. 4 - 52 S. Miles steamed 106
                     Long. 152 - 24.3 E. Fuel used 445 Gal.

January 10, 1943. 28th Day.

Patrolling on the surface in the mouth of WIDE BAY.

Received word of a convoy of two transports, two cruisers
and three destroyers headed up from RABAUL to KAVIENG.
Also received positions from trailing aircraft.

Our estimate of the situation is that this convoy will
come up a line passing from five miles off CAPE ORFORD to
five miles off ILTIS POINT in the channel. We will patrol
on this line today a little south of yesterday's position.

0404 Sighted aircraft flare bearing 180° T. This was
     apparently an attack on the convoy as word had been received
     that the Army planned to illuminate and bomb this convoy.

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0415 Changed course to 070° T. to head out to diving position.

0530 Submerged and commenced patrol on course 020° T. Expect
     to make little headway to the north due to the current. A
     plot of the convoy positions during the night indicates a
     speed of advance of twelve knots. This would indicate a ship
     speed of fifteen knots. It will be noon or after before this
     convoy reaches our position.

1350 Sighted smoke bearing 172° T.

1401 Masts of two ships in sight bearing 171° T. This must
     be the convoy we are expecting. A navigational plot indic-
     ates running on the normal approach course at high speed would
     suck us out of position to the eastward. Held course until
     the vessels closed sufficiently to get a more accurate set
     up.

1419 The masts of a total of six ships in sight. Three are
     merchantmen smoking heavily and three seem to be DD.

1421 Came to course 000° T. running with the convoy.

1428 Heard two depth charges. Nothing in sight close aboard
     and no planes seem near so assume these are designated to
     keep us away.

1432 Another depth charge heard. Changed course to 150° T.
     Manned battle stations, rigged for depth charge attack and
     started the approach. An air patrol of one float type sea-
     plane sighted patrolling across the front of the formation at
     an altitude of about 700 feet.

     Vessels sighted were gradually identified as three AP
     in column with five ASASHIO class DD and one MUTSUKI class DD
     as escort. One DD on each flank patrolling about 2,500
     yards from track, one astern and three on a roving patrol
     ahead, across, and along the line of advance. This made a
     lot of escorts to keep track of during the approach. All
     escorts were pinging and screws in all directions made a
     “bedlam” of sound and prevented any turn count on the tar-
     gets.

     During the approach the roving patrol dropped a total
     of twelve depth charges. It is believed these were dropped
     on supposed contacts as pinging frequently shifted from
     automatic to hand and there was much signalling with flag
     hoists and their peculiar all around orange blinker light.
     All of this activity was to port of us.

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S E C R E T
After once passing the roving patrol we counted on less
interference in the remainder of our approach. Instead, after
passing them once, they drew back on the convoy and had to be
passed a second time with the nearest one passing at a range
of 1000 yards.

Due to our leaky negative tank flood the entire approach
was made at periscope depth in spite of the air patrol. We
were not picked up by sound or sighting prior to firing in
spite of prolonged periscope exposure necessary to keep track
of all escorts as well as checking our set up.

Although zig zagging this convoy did not use the radical
zigs we have accustomed to.

A zig four minutes before firing put the two leading
ships in column with us in an ideal position 600 yards from
track and on an opposite course diverging 120°. The third
ship had been having trouble all steering and maintaining
position and it presented a small starboard angle at this
time.

With only five torpedoes forward, one with a contact
exploder, the decision was made to fire in a most unorthodox
manner using three torpedoes from forward, high parallax, at
the second ship in column then three torpedoes from aft, low
parallax, at the leading ship.

1531 40 Fired the first of three torpedoes from the bow tubes at
the second ship in column with a ten second firing interval.
Track 80° port, torpedo run 1200 yards, gyro angle 76° left,
spread 3° divergent from aft forward. The target was later
identified as an 8000 ton AP similar to the KAYO MARU.

1532 45 The first of three torpedo hits was heard. The second
and third came at about nine and eight second intervals.
Hits not observed as the Commanding Officer was trained on
the leading ship to get a set up for the stern tubes.

In accordance with standard practice speed was increased
on firing to facilitate depth control. Vibration of the peri-
scope delayed getting a set up on the second target for an
appreciable time until speed had been reduced.

A complete set up was necessary as the leading ship had
turned to port giving us a 90° port track and nearly straight
stern shot.

1534 10 Fired the first of three torpedoes from the stern tubes
at the leading ship in column, firing interval eight and ten
seconds, port track torpedo run 1700 yards. Gyro angle on
last torpedo 3½° left, spread 3° divergent from aft forward.

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— page 167 —
S E C R E T

The target was later identified as a 10,000 ton AP similar to
the KASIMA MARU.

1535 30 The first of three hits was heard. The other two follow-
ed at about ten second intervals.

All torpedoes were heard to run hot, straight and normal.

Immediately after firing, two depth charges, apparently
dropped from the plane exploded fairly close.

After firing the stern tubes the Commanding Officer
looked back at the first target prior to sweeping all around.
He had turned toward us and was bow on, listed to starboard
and settling. The third ship in column was headed for us and
the port wing DD was coming our way fast so went to 200 feet
and commenced rigging for depth charge attack instead of
looking at the second target.

Both targets were heard breaking up on sound and the
closest could be heard through the hull in all compartments.
That sent the morale curve "sky high".

1538 The first of a total of 22 depth charges exploded. None
did any damage.

The depth charge attack seemed to be conducted by only
two DD and pinging was used constantly. Depth was increased
to 250 feet and we apparently entered a sound layer for it
became difficult to hear screws. Slow speed and a gradual
turn to course 090° T. was made to evade.

1620 The last depth charge exploded.

1640 Commenced coming to periscope depth stopping every fifty
feet to listen and vent negative.

1700 Periscope depth, all clear. Set course 080° T. to shift
over to the vicinity of CAPE ST. GEORGE for the night and to-
morrow to let this spot cool a bit.

Commenced reload and checking of torpedoes that had been
in flooded tubes.

2027 Surfaced.

As a result of inspection of torpedoes we find we have
one torpedo forward that is dangerous to fire due to the gyro
having twice been flooded. Removed it from tube. One tor-
pedo aft in the same condition plus having a bad H.P. air
leak. We are now reduced to one torpedo forward and four
aft. One in the tubes aft has a contact exploder due to
previous flooding.

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S E C R E T

Still cannot reconcile the air and press-news reports
on this convoy with our experience today. Air reported two
transports, two cruisers and three destroyers. Press reports
tell of bombing hits on three transports. We saw three trans-
ports and six destroyers and the transports did not seem to
have been damaged. The third one was having trouble steering
and may have been damaged as we only got a bows-on view. Only
one made port which is just one to many.

2202 Changed course to 065° T.

          Position 1200 Lat. 05 0 03 S. Miles steamed 103.6
                           Long. 152 - 21.5 E. Fuel used 425 Gal.

January 11, 1943. 29th Day.

          Patrolling on the surface.

0345 Changed course to 270° T. to dive about three miles south
          of CAPE ST. GEORGE.

0531 Submerged. Patrolling on course 090° - 270° T. changing
          course every three hours.

1951 Surfaced on course 090° T. to run to the eastward of CAPE
          ST. GEORGE out of the traffic lanes. Our distribution of
          torpedoes does not admit of much chance of a successful night
          approach on the surface.

          Position 1200 Lat. 4 - 54.2 S. Miles steamed 106.3
                           Long. 152 - 48.3 E. Fuel used 510 Gal.

January 12, 1943. 30th Day.

          Patrolling on the surface.

0000 Changed course to 270° T. to run to a diving position
          in the mouth of the channel.

0100 Received despatch from the Task Force Commander directing
          that at sunrise, January 14, we enter area EASY NORTH and
          patrol close to the coast. As this area includes an excellent
          position across the traffic lanes from TRUK to RABAUL consid-
          ered it advisable to inform the Task Force Commander of the
          number of torpedoes remaining on hand and their distribution.
          This information plus results to date sent by despatch at
          0145.

0529 Submerged. Commenced patrol on course 270° - 090° T.
          reversing course every three hours.

0619 Sighted ship bearing 133° T. distant 2600 yards. Manned
          battle stations and made the stern tubes ready for firing.
          Due to darkness could not make out what the target was.

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S E C R E T

0621 Vessel identified as center one of three ASASHIO class
     DD in line, interval 2,500 yards, course 350° T., angle on
     the bow 80° port. Speed high but not determined until he
     passed astern at 800 yards.

     Sound could not pick up the target until the range was
     about 1,500 yards. Very poor sound conditions. As he passed
     a turn count of 210 turns was obtained. By this time the
     TDC showed a track of 140° port so no attempt was made to
     fire.

     Even with the short range presented, firing with incom-
     plete speed data or a large track would only result in wasting
     torpedoes. As it was still forty minutes before sunrise the
     bow wave and wake could not be seen well enough to estimate
     speed.

0633 Secured from battle stations as nothing could be seen
     coming astern of these DD.

1004 Sighted Jap KAWANISHI #97 Flying Boat bearing 070° T.
     course 260° T. distant eight miles.

1058 Sighted large unidentified plane bearing 215° T. course
     about 310° T. distant ten miles.

1954 Surfaced. On course 090° T.

     Received COMTASKFOR FORTY TWO daily dope sheet congrat-
     ulating the GRAMPUS on results obtained and informing us
     that our next move would be to BRISBANE instead of to area
     EAST NORTH as previously directed. Hate to be ordered in
     with five torpedoes left but so many targets may get by as
     a result of this unequal distribution it is better to give
     a new boat a chance.

     Position 1200 Lat. 4 - 59.2 S. Miles steamed 105.1
                       Long. 152 - 40.6 E. Fuel used 450 Gal.

January 13, 1943. 31st Day.

     Patrolling on the surface.

0030 Changed course to 290° T.

0130 Changed course to 270° T. Plan to dive in about the
     same position as yesterday.

     Received COMTASKFOR FORTY TWO despatch 120342 which will
     not break after the 26th group. This starts out addressed to
     the GRAYBACK and has a time group earlier than the dope sheet
     so probably does not apply to us. We have spent entirely

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— page 170 —
SECRET

too many man hours trying to unravel errors made in coding
of messages this trip. After that bad error of December 31,
1942 I am most distrustful of messages my communication
Officer can't break. Also we are missing serials 95 BAKER
and 13 BAKER.

0226 Sighted what seemed to be a submarine on the port bow
on an opposite and diverging course at a range of about
1500 yards. Sounded the general alarm, made ready our bow
tube and swung to the left to fire.

0228 Fired the bow tube. The torpedo was seen to run hot,
straight and normal and pass astern of the target which was
turning toward us to avoid.

0230 Submerged to 150 feet to avoid any torpedoes which may
be fired at us.

0235 One depth charge exploded. Went to 200 feet and rigged
for depth charge attack. Apparently the target was a small
sub chaser and not a submarine. Coming in sight against the
background of a dark cloud both officers on the deck iden-
tified it as a submarine. The Commanding Officer upon
reaching the bridge was unable to pick up the target at all
and left the approach entirely in the hands of Lieutenant
R.P. Guilor, the O.O.D., who did an excellent job of estim-
ating the situation and maneuvering to fire.

0238 Pinging heard on starboard bow. Commenced maneuvering
to evade, keeping the searching ship astern and running at
slow speed.

0440 All sounds of pinging had faded so commenced return to
periscope depth.

0500 At periscope depth all clear on sound and by periscope.

0520 Surfaced and ran the blowers full speed to air out the
boat prior to the day's patrol.

0530 Submerged and commenced patrol on course 2700 T. and
0900 T. reversing course every three hours.

1000 Sighted KAWANISHI type #97 patrol plane bearing 030° T.
on course 300° T. distant eight miles.

1954 Surfaced. Set course 090° T. to move over to eastern
side of the area. Believe the destroyers and sub-chasers
sighted the past two mornings were searching for submarines.

2400 Received orders from the Task Force Commander to depart
our area proceeding south across area ROGER and to BRISBANE
via assigned routing departing area not later than sunset four-
teen January.

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S E C R E T
2-37 Came to course 255° T. to enter southern part of area
ROGER early in the morning and patrol on a southerly course
near the eastern boundary during the day.

Position 1200 Lat. 05 - 20 S. Miles steamed 94
Long. 152 - 49 E. Fuel used 420 Gal.

January 14, 1943. 32nd day.
Patrolling on the surface.
0035 Run into heavy rain. Reduced speed to five knots.
0305 Changed course to 215° T.
0419 Changed course to 180° T.
0531 Submerged and commenced patrol on course 180° T.
1622 Departed southern boundary of area submerged. Set course
147° T. for point TWO.
1950 Surfaced. Went ahead on three engines, 15.7 knots, pro-
ceeding to base.
2159 Changed course to 138° T.
Due to the number of submarines reported in this vicin-
ity decided to run submerged tomorrow for our own protection
and in hopes of sighting and attacking one.

Position 1200 Lat. 05 - 47.3 S. Miles steamed 123.9
Long 152 - 42 E. Fuel used 865 Gal.

January 15, 1943. 33rd Day.
Enroute on the surface.
0100 Increased to four engine speed, 17 knots.
0342 Passed through point TWO and set course 126° T. for
point WHITE.
0550 Submerged. Conducting submerged patrol.
1946 Surfaced. Set course 126° T. and went ahead on three
engines.
Position 1200 Lat. 08 - 39.7 S. Miles steamed 203.6
Long. 154 - 40.7 E. Fuel used 3420 Gal.

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January 16, 1943. 34th Day.
Enroute on the surface.
0014 Increased to four engine speed.
0600 Changed course to 185° T. and commenced zig zagging.
1600 Ceased zig zagging.
Received information that the WAHOO was coming up our
line and would probably make contact January 18.
Position 1200 Lat. 12 - 01 S. Miles steamed 290.3
Long. 157 - 02.7 E. Fuel used 3870 Gal.

January 17, 1943. 35th Day.
Enroute on the surface.
Position 1200 Lat. 18 - 13.2 S. Miles steamed 395.9
Long. 156 - 27.6 E. Fuel used 6924 Gal.

January 18, 1943. 36th Day.
Enroute on the surface.
0315 Sighted and exchanged recognition signals with the U.S.S.
WAHOO, bearing 170° T., distant 1500 yards.
0645 Passed through point HORSE and set course 197° T. for
point BOX.
1855 Passed through point BOX and set course 227° T. for
point VAN.
2115 Started three hour battery discharge.
2315 Sighted Cape Moreton Light bearing 249° T.
Position 1200 Lat. 24 - 26.5 S. Miles steamed 394.2
Long. 155 - 30 E. Fuel used 6820Gal.

January 19, 1943. 37th Day.
Enroute on the surface.
0028 Passed through point VAN and entered swept channel.
0312 Exchanged recognition signals with Harbor Signal Station.
0430 Pilot came aboard. Commenced transit to MORETON BAY.
0535 Passed PILE Lighthouse abeam to port and entered MORETON
BAY River.
Moored.
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S E C R E T
_ _ _ _ _ _
0825 Moored starboard side to port side U.S.S. GROUPER along
side the U.S.S. FULTON.

Miles steamed 394.2
Fuel used 3670 Gal.

2. Weather. Weather was generally good in these areas
and was in accordance with the information given in the sailing
directions.

3. The current generally sets in a southerly and westerly
direction throughout area ZED. Near the NEW BRITAIN coast in ST.
GEORGE'S Channel a southerly current of two knots was encountered
reducing the effectiveness of a submerged patrol.

4. Celestial navigation is the most effective method of
maintaining position in these areas. Due to the incompleteness and
inaccuracy of the charts piloting is difficult and very much a case
of keep clear of the beach by seaman's eye.

- 34 -

— page 174 —
Date | Time | Position of sighting | True Bearing | Est. Range | Est. Course | Est. Speed | Turn Count | Type - Tonnage | Remarks
---|---|---|---|---|---|---|---|---|---
Dec. 19 | 1815 | Lat. 05-49 S. | Long. 153-08 E. | 293 | 13,500 | 115 | 9 kts. | not taken | AK 6000 to 8000 | 1 ASASHIO DD | Attack # 1
Dec. 20 | 1000 | Lat. 05-19 S. | Long. 153-10 E. | 034 | 12,000 | 310 | 30 kts. | not taken | 3 AP or AP 4 DD | Not zig zagging and | unable to close.
Dec. 20 | 2342 | Lat. 05-38 S. | Long. 153-22 E. | 252 | 12,000- | 17,000 | 130 | 20-25 | knots | not taken | AK 6000 2 ASASHIO | DD | Dove too soon due to | bright moonlight.
Dec. 21 | 0114 | Lat. 05-33 S. | Long. 153-22 E. | 330 | 17,000 | 156 | 16 kts. | not taken | Mine sweeper 400 | No attack made due to | small size and incom- | plete information
Dec. 21 | 0623 | Lat. 05-09 S. | Long. 153-23 E. | 006 | 18,000- | 20,000 | 130 | 8 kts. | not taken | AK unknown | Unable to close
Dec. 23 | 1226 | Lat. 05-29 S. | Long. 153-07 E. | 079 | 18,000- | 20,000 | 308 | 8 kts. | not taken | AK 6,000 | 2 ASASHIO Class DD | Unable to close either | AK or rear escort
Dec. 25 | 0738 | Lat. 05-09 S. | Long. 153-19 E. | 265 | 10,000 | 130 | 5 kts. | not taken | 2 trawlers 1 of | about 800 tons 1 | of about 400 tons | Appeared to be large | ships until range re- | duced to about 4000 yds.
Dec. 26 | 0905 | Lat. 05-24 S. | Long. 153-20 E. | 303 | 16,000 | 140 | 15 kts. | not taken | similar to IUTUKE | class DD | Speed data poor due to | poor visibility affecting | ranges.
Dec. 26 | 1011 | Lat. 05-27 S. | Long. 153-19 E. | 171 | 95,000 | 310 | 11½ | not taken | AP 6000 to 8000 | 2 ASASHIO DD | Came out of rain squall | and zigged around us
Dec. 28 | 0500 | Lat. 05-12 S. | Long. 153-51 E. | 070 | 4,000 | 250 | 20 | 220 | DD type not | known | Came out of pitch black | rain squall
Dec. 31 | 0153 | Lat. 05-13 S. | Long. 153-51 E. | 220 | 12,000 | 150 | 11½ | 180 | AK 6000 | 1 SC escort | Attack # 2

— page 175 —
5. (Con't)

Date | Time | Position sighting | True Bearing | Est. Range | Est. Course | Est. Speed | Turn Count | Type - Tonnage | Remarks
---|---|---|---|---|---|---|---|---|---
Jan. 7, 1943. | 1452 | Lat. 04-50 S; Long. 152-21.5 E | 341 | 8000 | 180 Base | 15 + | too fast | Jap sub of new type. See nar-rative for des-cription. | Jap sub running radially, unable to close for a shot.
Jan. 9, | 1406 | Lat. 04-50.2 S; Long. 152-28.5 E | 208 | 7000 | 005 | 15 | not taken | Jap sub similar to above | See attack # 3
Jan. 10 | 1350 | Lat. 05-00.7 S; Long. 152-21.5 E | 172 | 20,000 | 000 | 13½ | too much in-terfer-ence | 3 AP 25,000 ton and 1 DD 15,000 ton | Attack # 4. Sank 1-20,000 ton and 1-8000 ton AP
Jan. 12 | 0619 | Lat. 04-59 S; Long. 152-41.3 E | 133 | 2600 | 350 | 25 | 210 | 3 KUTUKI class DD; 1 DD 15,000 ton; 3 ASASHIO class DD | In line. Interval 2500 yards, headed for RABAUL.
Jan. 13 | 0228 | Lat. 04-59.7 S; Long. 153-01.3 E | -- | 1500 | 060 | 15 | not heard | 1 PC or similar patrol boat | Night attack. Attack # 5.

— page 176 —
6.
Date | Time | No. & Type | Ship's Position | Remarks
-----|------|||
Dec.18 | 1355 | One Flying | Lat. 9-07.5 S. | Bearing 150° T.
       |      | Fortress   | Long.154-22 E. | Alt. 2000 ft.
       |      |            |                 | Distant 4 miles
       |      |            |                 | Banking around
       |      |            |                 | toward us.
Dec.20 | 0920 | Jap Flying | Lat. 05-17.7 S. | Distant ten miles
       |      | Boat 97    | Long.153-10.5E. | Bearing 040° T. on
       |      |            |                 | course 130° T.
Dec.27 | 0931 | Reconnaiss-| Lat. 5-20.1 S. | Course 250° T.
       |      | ance Bomber| Long.153-27.5E. | Bearing 229° T. dis-
       |      | 95         |                 | tant 7 miles.
Dec.27 | 0946 | 2 engine   | Lat. 5-20.9 S. | Course 180° T. dis-
       |      | bomber     | Long.153-27.5E. | tant 8 miles.
Dec.28 | 1043 | Reconnaiss-| Lat. 5-21 S.   | Bearing 085° T.
       |      | ance Bomber| Long.152-58.5 E. | Course 280° T. dis-
       |      | 95         |                 | tant 2 miles. Alti-
       |      |            |                 | tude 1000 feet.
Dec.30 | 1625 | Lockheed 14| Lat. 5-05.2 S. | Bearing 070° T.
       |      |            | Long.153-37.2E. | Course 130° T. dis-
       |      |            |                 | tant 1 mile. Alt-
       |      |            |                 | itude 500 feet.
Dec.30 | 1838 | Douglas DC3| Lat. 5-05.2 S. | Bearing 230° T.
       |      |            | Long.153-38.7E. | Course 130° T.
Jan.2  | 0733 | Flying For-| Lat. 5-03.2 S. | Bearing 094° T.
       |      | tress or Mit-| Long.152-32.9E. | Course 130° T.
       |      | subishi 97 |                 |
Jan.3  | 0654 | Jap Heavy  | Lat. 5-08 S.   | Bearing 005° T.
       |      | Bomber #96 | Long.153-03.9E. | Course 310° T. dis-
       |      |            |                 | tant 4 miles.
Jan.5  | 1102 | Jap Flying | Lat. 5-07.8 S. | Bearing 189° T.
       |      | Boat #97   | Long.153-02.8E. | Course 300° T. dis-
       |      |            |                 | tant 3 miles.
Jan.7  | 0907 | 12 Flying  | Lat. 4-54.6 S. | Bearing 037° T.
       |      | Fortresses | Long.152-28.5E. | Course 135° T. dis-
       |      |            |                 | tant 9 miles.
Jan.7  | 1317 | Jap Reconn-| Lat. 4-51.7 S. | Bearing 063° T.
       |      | aissance Bom-| Long 152-28.5E. | Course north. Dis-
       |      | ber 95     |                 | tant 2 miles.
Jan.7  | 1422 | Low-wing Mon-| Lat. 4-50.9 S. | Bearing 336° T.
       |      | oplane uni-| Long.152-28.5E. | Course north. Dis-
       |      | dentified. |                 | tant 1½ miles.

— page 177 —
Page 5A continued.

Jan.12 1004 KAWANISHI Lat. 4-58.8 S. Bearing 070° T.
             #97 Flying Long.152-39.4 E. Course 340° T. dis-
             Boat.                        tant 8 miles.

Jan.12 1020 Float type Lat. 4-58.8 S. Bearing 070° T.
             biplane    Long.152-40.1 S. Distant 8 miles.
                                          Course 260° T.

Jan.12 1058 Unidenti-  Lat. 4-58.8 S. Bearing 218° T.
             fied large Long.152-41.9 E. Course 310° T.
             plane                        Distant 10 miles.

Jan.13 1000 KAWANISHI  Lat. 5-02.2 S. Bearing 030° T.
             #97 Patrol Long.152-45.2 E. Course 300° T.
             Plane                        Distant 8 miles.

— page 178 —
S E C R E T

7.

S U M M A R Y O F A T T A C K S
Attack #1

December 19, 1942.

Approach started at 1815 with opening range of an estimated
13,500 yards. Target was a 6,000 ton freighter similar to the
ASAKA MARU escorted by two ASASHIO class DD one leading and one
trailing.

Simultaneous course changes used with radical zigs of 20°
to as high as 70°.

Weather clear, visibility excellent with sea oily calm with
long swells.

Escort pinging on 17 Kcs. at eleven second intervals. Escort
seemed to vary speed at intervals.

Approach and firing made into the sun. No were not picked
up by sight or sound prior to firing.

Three torpedoes fired at the freighter as follows from the
bow tubes:
                                        #1             #2             #3
Track angle                           100° port      - - -          - - -
Gyro angle                            5° port        12° left       14½° left
Point of aim                          MOT            MOT            MOT
Spread                                2° right       0              2° left
Firing interval                       - - -          15 sec.        10 sec.
Depth set                             6 feet         6 feet         6 feet
Torpedo run                           2400 yards     2400 yards     2400 yards

Results:

One definite hit heard one minute fifty-five seconds after
third torpedo fired. Target heard breaking up after initial depth
charge attack. Considerable wreckage noted in this vicinity
next day. Considered sunk.

Three torpedoes fired at trailing escort as soon as firing
completed on target as follows:
                                        #1             #2             #3
Track angle                           90° port       - - -          - - -
Gyro angle                            14° right      12 ½° right    8 ½° right
Point of aim                          MOT            MOT            MOT
Spread                                2° right       2° right       2° left
Firing interval                       - - -          5 seconds      10 seconds
Depth set                             0 feet         0 feet         0 feet

- 1B -

— page 179 —
S E C R E T
Results:
After last torpedo was fired target was seen to be turning
slowly toward us.
Two hits heard very close together, two minutes after firing
first torpedo of the spread. Second torpedo fired early, through
error, before spread was removed from TDC. It should have been
fired with 0° spread.
Believe this vessel had slowed to open distance on AK and
further slowing due to his turn threw him right into the first
torpedoes fired.
His screws were not heard after the hits and the initial depth
charge attack and he was not in sight upon coming to periscope
depth. It is considered that he was sunk.

Attack #2
This was the Commanding Officer's first firing in a night
surface attack.
It was planned to use three torpedoes from the bow tubes
using a 2° divergent spread from aft forward.
Torpedoes set on six feet depth.
Both torpedoes actually fired went out with 12° right gyro
angle and ran hot straight and normal.
Point of aim was the MOT using TBT with a continuous buzzer
to indicate when on the target.
As indicated in the narrative a change of angle on the bow
from 90° starboard to 120° port failed to reach the TDC operator.
Failure of the first tube to fire was due to the pivot pin of
the hand firing key dropping out and the key dropping and jamming
the solenoid.
The difficulties encountered will never happen again as they
cost us a 6,000 ton AK.

Attack #3
January 9, 1943.
Approach started at 1406 with opening range of about 7,000
yards. Target a Jap submarine of new design.

- 23 -

— page 180 —
S E C R E T

Not zig zagging and running up the NEW BRITAIN coast at about
three miles from the beach.

Visibility good. General overcast with high wind and choppy
seas.

Three torpedoes fired as follows from the bow tubes:

| | #1 | #2 | #3 |
|---|---|---|---|
| Track | 120° starboard | - - - | - - - |
| Gyro angle | 3½° right | 4½° right | 7½° right |
| Point of aim | NOT | NOT | NOT |
| Spread | 2° left | 0 | 2° right |
| Firing interval | - - - - | 8 seconds | 8 seconds |
| Depth set | 6 feet | 6 feet | 6 feet |
| Torpedo run | 3100 yards | 3100 yards | 3100 yards |

Results:

All apparently missed ahead. Sound heard, and Commanding
Officer saw, all torpedoes run hot, straight, and normal.

Attack #4

January 10, 1943.

Approach started at 1432 on a convoy of three transports
escorted by six destroyers and with an air patrol across the face
of the formation. Convoy on a northerly course loaded for RABAUL.
Transports in column with one DD on each flank, one astern and
three conducting a roving patrol across and along the line of
advance. All escorts pinging continuously and a total of twelve
depth charges were dropped on supposed contacts by these escorts
prior to our firing. Entire approach conducted at periscope depth
due to our leaky negative tank flood valve.

Convoy was zig zagging using simultaneous course changes
by all ships.

With only five torpedoes forward decided to fire three at the
second ship in column, high parallax, from the bow tubes and three
at the loading ship, low parallax, from the stern tubes.

Three torpedoes fired from the bow tubes at an 8,000 ton AP
similar to the IWO MARU.

| | #1 | #2 | #3 |
|---|---|---|---|
| Track | 80° port | - - - | - - - |
| Gyro angle | 76° left | 79° left | 85° left |
| Point of aim | NOT | NOT | NOT |
| Spread | 3° right | 0° | 3° left |
| Firing interval | - - - - | 10 seconds | 10 seconds |
| Depth setting | 6 feet | 6 feet | 6 feet |
| Torpedo run | 1200 yards | 1200 yards | 1200 yards |

- 3B -

— page 181 —
S E C R E T

Results:

Three hits heard. Not seen as set up on second target was
being made. Target later seen settling and heeled over to star-
board. Heard to break up. Turned toward us and sank so close
that the breaking up was heard through the hull. Considered sunk.

Three torpedoes fired from the stern tubes at a 10,000 ton
AP similar to the KASIMA MARU.

| | #1 | #2 | #3 |
|:|:|:|:|
| Track | 90° port | - - - | - - - |
| Gyro angle | - - - | - - - | 3½° left |
| Point of aim | NOT | NOT | NOT |
| Spread | 3° right | 0° | 3° left |
| Firing interval | - - - | 8 seconds | 10 seconds |
| Depth set | 6 feet | 6 feet | 6 feet |
| Torpedo run | 1700 yards | 1700 yards | 1700 yards |

Results:

Three hits heard and target heard breaking up on sound. Not
observed as aircraft screen dropped depth charges immediately after
these torpedoes were fired and Commanding Officer was making swoop
to locate escorts. One was headed for us and last AP in column
was headed for us so went deep.

Attack #5

Night snap firing at 0228, January 13, 1943.

What appeared to be a submarine was sighted on the port bow
on an opposite and diverging course at a range estimated as 1500
yards. Lieutenant R.P. Guiler, the O.O.D., sounded the general
alarm and swung left with full rudder for a straight bow shot.
As soon as the forward tube was ready our remaining torpedo for-
ward was fired, using an 13° load. Speed was under estimated and
the torpedo missed astern.

As one depth charge was dropped after we submerged and we
were hunted for two hours it is believed this was a sub-chaser
instead of a submarine.

8. During the patrol only two classes of surface
escorts were encountered, namely: ASASHIO class destroyers and
sub-chasers. Pinging on seventeen kcs. with an eight second in-
terval was universally used where convoy speeds were below fifteen
knots. An air patrol accomp [UNCLEAR: anied] the convoy attacked on January
10 and seems to cover transit of submarines running on the surface
during daylight in the channel.

- 43 -

— page 182 —
S E C R E T

All evasions were accomplished by running silently at
depths of 200 and 250 feet at slow speed, maneuvering to keep the
attacking vessel or vessels well aft. Return to periscope depth
after the initial attack was not feasible with negative tank
flood valve leaking as it was.

Successful penetration of the roving screen and air
patrols in the attack of January 10 was accomplished at periscope
depth running at slow speed and making periscope exposures as brief
as possible.

MAJOR DEFECTS

9. (A) Upon reloading after firing on December 19 the
torpedo being loaded into # 6 tube jammed about half way in. After
withdrawing the torpedo it was found that the firing valve check
had dropped into the tube, and in jamming the torpedo, had been badly
bent. This tube had tested satisfactorily with the others prior to
departure from port. The securing nut apparently had not been
fastened with a cotter pin and had backed off allowing the check
valve to be blown into the tube on firing, or drop into the tube
during the severe depth charging after firing, and prior to the
reload.

(B) On the routine morning dive on December 22
negative tank was blown as usual and the flood valve closed. As
the boat was still quite light, negative flood was opened and
closed again to take in more water quickly. At this time a terrific
noise was heard throughout the boat that sounded like hitting bot-
tom. Depth of water of over 2,000 fathoms was indicated on the
chart. Both sound heads were checked and found to be intact. No
damage could be discovered anywhere except that negative tank flood
was leaking badly. It was thought that either the valve was
damaged or a gasket in the blow line where it passes through # 20
main ballast tank had blown. A careful check indicated that the
sole damage was in the flood valve. Adjustment of the linkage
inside the boat to try to force the valve against its seat more
tightly was only partially successful.

For the remainder of the patrol a pressure was
kept in the tank submerged and submerged patrol conducted at peri-
scope depth. In this way negative tank could still be used for
rapid deep submergence. Going deep between loads was impractica-
ble as the flooding of negative with increased depth required
either continuous pumping and flooding of the auxiliary tanks or
blowing and venting of negative.

(C) On December 27 when negative tank was blown on
the routine morning dive the gasket between the regulator valve
and the pressure hull blew out. By venting negative tank and run-
ning the trim pump at full speed, pumping to sea, it was possible
to keep ahead of the leak through the flood valve and renew the
gasket.

- 5 B -

— page 183 —
SECRET

(D)
Vibration of the attack periscope is daily get-
ting worse. The vibration is a combination of the
optical system and of the periscope itself in its bearings. This
seriously hampers the Commanding Officer in making an approach.
The tender is being requested to make every effort to remedy this
defect during the coming refit.

(E)
Considerable difficulty is experienced in keep-
ing the shaft for the D.Q. direction finder loop watertight. Re-
moval of this loop and blanking off the opening is recommended.
This loop has never been used since war began.

(F)
The remarks made in previous reports in regard
to the squeal of the starboard shaft at slow speed and the desir-
ability of a raised hatch coaming around the upper conning tower
hatch are still concurred in.

10. Radio reception was generally good throughout the
patrol.

The frequency of serious errors in encoding of messages
was a matter of grave concern to this vessel. On December 31,
1942, a message was sent restricting the GRIFFIN to the northern
part of her area and assigning the ARGONAUT to the southern part.
The wrong internal indicator was sent in this message and it
could not be broken after ten hours of trying, using all possible
combinations of possible errors. This message was copied six
times and all copies were identical. On January 5, 1943 a cor-
rection was sent to the internal indicator and when decoded we
found we had been in the ARGONAUT's area since 1100 and at the
time were 26 miles south of our new area. Had contact been made
with the ARGONAUT we would have attacked with no hesitation as
her silhouette resembles that of a class of Japanese submarines.

Several instances of similar errors, corrected the fol-
lowing night, indicate the urgent necessity for a monitoring cir-
cuit to decode all traffic as transmitted from Belconnon to catch
and correct such errors promptly.

Having unknowingly been in the same area with another
boat, through coding errors, on two successive patrols the Com-
manding Officer is seriously concerned when any message cannot
be broken or a serial number is missed. At least three Baker
serial numbers apparently were not used but we cannot check this
at sea.

No density layers were encountered this trip.

Sound conditions were generally excellent. There were
days, however, when we seemed to be in a sound layer at periscope
depth.

Habitability was excellent throughout the cruise.

- 63 -

— page 184 —
`SECRET`
`------`

`The Commanding Officer wishes to commend all officers`
`for their excellent performance of duty and the smooth function-`
`ing of the torpedo control party. To them goes full credit for`
`the success attained on this patrol.`

`Lieutenant W.R. Merrill, the navigator, is to be`
`especially commended for his excellent work in navigating under`
`adverse conditions and for obtaining target speedy by range-`
`bearing plot with meager information.`

`Lieutenant R.P. Guiler, the torpedo officer, is to be`
`especially commended for his excellent work as TDC operator. He`
`is deserving of full credit for the excellent torpedo performance`
`and for his handling of the TDC with a total of 50% hits in`
`eighteen torpedoes fired.`

`Lieutenant I.J. Sandell, engineering officer, is to be`
`especially commended for his excellent work as diving officer in`
`depth control during approaches and during evasive tactics after`
`attacks although handicapped by a leaky negative tank flood valve.`

`STATISTICS FOR THE PATROL`
``

`Days in the area 27`
`Days submerged 18½`
`Total sightings 16`
`Total vessels sighted 41`
`Approaches started 15`
`Attacks made 5 (two at night)`
`Successful attacks 2 ( two vessels`
` each`
` attack)`
`% successful attacks 40%`
`Torpedoes fired 18`
`Hits 9`
`% hits 50%`
`Depth charges received 56`
`Damage done`
`1 ASASHIO class DD 6,000 tons`
`1 AK 8,000 tons`
`1 AP 10,000 tons`
`1 AP`
`Total merchant tonnage 24,000 tons`

`Patrol terminated by orders of Task Force Commander`
`with four torpedoes remaining aft and one additional torpedo in`
`each room dangerous to fire due to repeatedly flooded gyros.`

`- 73 -`

`[STAMP: 2 254]`

— page 185 —
TASK FORCE FORTY-TWO
FF12-15 (42)/A16-3/11/Hr                               c/o Fleet Post Office,
                                                      San Francisco, California,
Serial 0018                                           January 21, 1943.

S E C R E T

From:         The Commander Task Force FORTY-TWO.
To :          The Commander-in-Chief, U. S. FLEET.
Via :         The Commander South Pacific Force.

Subject:      U.S.S. GRAMPUS (SS207); Fifth War Patrol,
              Comment on.

Enclosure:    (A) Copy of subject war patrol report.

1.            Enclosure (A) is forwarded herewith. Its "SECRET"
classification is retained, as the report was not prepared strictly
in accordance with new instructions, which will permit classifi-
cation of such reports as "CONFIDENTIAL" in the near future.

2.            The Fifth War Patrol of GRAMPUS began with her
departure from Brisbane, Australia, December 14, 1942. The patrol
covered a period of thirty-seven days, of which twenty-seven were
spent in GRAMPUS' assigned patrol area in the vicinity of Cape St.
George. The area was well covered, and the patrol alertly conduct-
ed. Forty-one vessels were sighted. Attacks were made on two es-
corted cargo ships, two escorted transports, one destroyer escort,
and one submarine. One cargo ship and the two transports were sunk
and the destroyer escort was damaged. Severe depth charging was
experienced after the first attack, which was delivered on GRAMPUS'
patrol area, but damage was minor.

3.            On three occasions the commanding officer decided
against firing torpedoes at nearly extreme range, and on one
occasion he permitted a destroyer to pass at 2200 yards range, with
120° track angle without attacking because he did not have a satis-
factory speed solution. These decisions, normally sound in any case,
were entirely justified under the existing conditions wherein there
was no scarcity of suitable targets. The decision not to surface
and chase in close proximity to Cape St. George was sound. Also it
was quite proper to inform the Task Force Commander of GRAMPUS'
torpedo situation on receipt of the message ordering her to a new
patrol area.

4.            The attack on the night of December 30-31 failed
because of a vital error in torpedo control party communications.
It is considered that the program of intensive training for each
submarine during the first two days after leaving on patrol, which
has been in effect for the past three weeks, will assist greatly
in the avoidance of similar errors in the future.

-1-

— page 186 —
FF12-15(42)/A16-3/11/Hr
Serial 0018
S CONFIDENTIAL

Subject: U.S.S. GRAMPUS (SS207); Fifth War Patrol, Comment on.

5. The coding failures pointed out by GRAMPUS are correct
and occurred in the office of the Task Force Commander. Corrective
measures have been taken.

6. GRAMPUS is to be congratulated for inflicting the follow-
ing damage on the enemy:

Sunk One cargo vessel 6,000 tons
                 One transport 8,000 tons
                 One transport 10,000 tons

Total sunk 24,000 tons

Damaged One ASASHIO class destroyer.

DISTRIBUTION:
Cominch (Advance Copy),
VCNO,
CincLant
Concpac
Comsowespac
Comsublant
Comsubpac
Comsubsowespac
All SS TF-42 (Not to be taken to sea - BURN),
CTF-42 War Diaries and Patrol Summary File,
CSS 6, 8,
CSD-62
OinC S/M School, N.L., Conn. (2)

2 0684

January 21, 1943.

JAMES FIFE.

-2-

— page 187 —
END OF REEL
JOB NO. [HANDWRITTEN: 9-108-AR-163-75]
[HANDWRITTEN: R# 1]

          4.5
          5.0
          5.6
          6.3
          7.1
          8.0
1.0       2.8 2.5
          3.2 2.2
          3.6 2.0
          4.0
1.1
          1.8
1.25 1.4 1.6

THIS MICROFILM IS
THE PROPERTY OF
THE UNITED STATES
GOVERNMENT

DEPARTMENT OF DEFENSE
UNITED STATES OF AMERICA

MICROFILMED BY
NPPSO-NAVAL DISTRICT WASHINGTON
MICROFILM SECTION

D-52254

— page 188 —
START OF REEL
[HANDWRITTEN: AR-88-81]
JOB NO. [HANDWRITTEN: E-108]
OPERATOR [HANDWRITTEN: L. Frye]
DATE [HANDWRITTEN: 8-3-81]

|||| 1.0
|||| 1.1
|||| 1.25 |||| 1.4 |||| 1.6
[FADED NUMBERS ON RESOLUTION CHART:]
4.5 2.8 2.5
5.0 3.2 2.2
5.6 4.0 2.0
6.3 1.8
7.1 3.6

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

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

— page 189 —
[HANDWRITTEN: NRS 1974-46]

[HANDWRITTEN: GRAMPUS (SS-207)]
[HANDWRITTEN: WW II REPORT FILE]

[HANDWRITTEN: ALL MATERIAL ON THIS REEL IS DECLASSIFIED]

[HANDWRITTEN: FOR DECK LOGS MAY 1941 - JANUARY 1943]
[HANDWRITTEN: CONSULT NATIONAL ARCHIVES WHICH HAS CUSTODY.]

[HANDWRITTEN: 35 MM]

— page 190 —
DATE 19 Dec 42 - 13 Jan 43
FROM CO USS GRAMPUS (SS-207)
NAME GRAMPUS [HANDWRITTEN: A]
SERIAL 0073
DATE 29 March 1943
SUBJECT ACTION BY U.S. SUBMARINE
5 Form Reports of action in Lat. 05.49 S, Long 153.08 E,
during 5th War Patrol (14 Dec 42 - 19 Jan 43). Claims 2
transports sunk; 1 freighter, 1 destroyer damaged.
(SOPAC: U.S. Submarine Actions)
FILED: War Diary

Separately as ORIGINAL CARBON COPY

MICROSERIAL NO.
ACTION REPORT OPNAV FORM 3480-13 (11-55) B-28882

DATE 19 February 1943
FROM CROSS INDEX CARD
NAME GRAMPUS [HANDWRITTEN: *]
SERIAL 0074
DATE 29 March 1943
SUBJECT Loss of USS GRAMPUS (SS-207)
Chronological report of last known events during SIXTH
WAR PATROL of GRAMPUS. Presumed lost in Lat. 5.04 S,
Long. 152.18 E due to enemy action.
(SOPAC: SUBS)
FILED: War Diary

Separately as CARBON COPY under TASK FORCE 72

MICROSERIAL NO.
ACTION REPORT OPNAV FORM 3480-13 (11-55) B-28882

— page 191 —
DATE 17, 30 May 1942
FROM CO - USS GRAMPUS (SS-207)
NAME GRAMPUS
SERIAL 04
DATE 30 June 1942
SUBJECT Action by U.S. Submarine- Forwarding of.
Forwards 2 Form Reports of torpedo and gunfire attack by
GRAMPUS on Jap ship in Lat. 03-37.00 N, Long. 142.10.00 E,
during 2nd War Patrol (28 Apr - 17 Jun 42). Sustained
minor damage from gunfire attack by Jap patrol vessels.
(CENPAC: U.S. Submarine Actions)
FILED: War Diary

Separately as ORIGINAL;

MICROSERIAL NO.
ACTION REPORT OPNAV FORM 3480-13 (11-55) B-28882

DATE 17 May 1942
FROM CO - USS GRAMPUS (SS-207)
NAME GRAMPUS
SERIAL 05
DATE 30 June 1942
SUBJECT Damage from enemy attack. Report of
Narrative report of damage suffered by USS GRAMPUS from
enemy patrol vessel attack off Truk.

(CENPAC: US SUB OPS)
FILED: War Diary

Separately as ORIGINAL

MICROSERIAL NO.
ACTION REPORT OPNAV FORM 3480-13 (11-55) B-28882

DATE 8 Jul-30 Aug 1942
FROM CO - USS GRAMPUS
NAME GRAMPUS
SERIAL none
DATE none
SUBJECT Supplementary War Patrol Report
Report of enemy contacts & attacks on patrol in the Western
Philippines area.

(SCWESPAC: SUB OPS)
FILED: War Diary

Separately
as Enc. to TG 51.1 ser S-0049 of 14 Sep 42

MICROSERIAL NO.
ACTION REPORT OPNAV FORM 3480-13 (11-55) B-28883

— page 192 —
DATE 18 Jul, 12 Aug 42
FROM C.O. USS GRAMPUS (SS-207)
NAME GRAMPUS
SERIAL 07
DATE 1 September 1942
SUBJECT Action by U.S. Submarine- Forwarding of.

Forwards 2 Form Reports covering torpedo attacks by GRAMPUS
on Jap ships in Lat. 03.50 S, Long. 119.10 E, during 3rd
War Patrol (8 Jul - 30 Aug 42).
(SOWESPAC: U.S. Submarine Actions)
FILED: War Diary

Separately as ORIGINAL;

MICROSERIAL NO.
ACTION REPORT OPNAV FORM 3480-13 (11-55) B-28883

DATE 12 Oct - 15 Nov 42
FROM CO USS GRAMPUS (SS-207)
NAME GRAMPUS
SERIAL
DATE
SUBJECT ACTION BY U.S. SUBMARINE

6 Form Reports of action in Lat. 8.04 S, Long. 157.53.5 E,
during 4th War Patrol (2 Oct - 23 Nov 42). Claims 2 de-
stroyers damaged.
(SOPAC: U.S. Submarine Actions)
FILED: War Diary

Separately as ORIGINAL

MICROSERIAL NO.
ACTION REPORT OPNAV FORM 3480-13 (11-55) B-28883

DATE 13 October 1942
FROM CO - USS GRAMPUS (SS-207)
NAME GRAMPUS
SERIAL 0005
DATE 23 November 1942
SUBJECT SPECIAL MISSION REPORT

Report of landing of coast watchers on Vella Lavella and
on Choiseul Islands in the northern Solomons, during
FOURTH WAR PATROL.
(SOPAC: SUB OPS)
FILED: War Diary

Separately PROCESSED COPY
as Enc. to TF 42 ser 00119 of 25 Nov 42
(OVER)
MICROSERIAL NO.
ACTION REPORT OPNAV FORM 3480-13 (11-55) B-28883

— page 193 —
[HANDWRITTEN: 1 of 3]

[HANDWRITTEN: Original P.F.
3/21/58]

A16-3/SS207 U.S.S. GRAMPUS

Serial 04 10-pk
[STAMP: DECLASSIFIED] CONFIDENTIAL June 30, 1942.

From: The Commanding Officer.
To : The Commander in Chief, U.S. Pacific Fleet.

Via : (1) The Commander Submarines, Southwest
Pacific.

Subject: U.S. Submarine Action Reports - forward-
ing of.

Reference: (a) COMINCH CONFIDENTIAL Serial 0332 of
March 7, 1942.

Enclosure: (A) U.S. Submarine Action Report dated May P.2
17, 1942.
(B) U.S. Submarine Action Report dated May P.3
30, 1942.

1. In compliance with reference (a), enclosures
(A) and (B) are forwarded herewith.

2. One copy each of enclosures (A) and (B) have
been forwarded direct to Commander in Chief, U.S. Fleet.

E. S. HUTCHINSON.

— page 194 —
CONFIDENTIAL

U. S. SUBMARINE ACTION REPORT

U.S.S. [HANDWRITTEN: GRAMPUS (SS207)] Date [HANDWRITTEN: May 17,] 1942
Time [HANDWRITTEN: 1948 (-10 ZT)] Location: Latitude [HANDWRITTEN: 08 - 02 - 00 N]
Longitude [HANDWRITTEN: 151 - 30 - 00 E]

INSTRUCTIONS

(a) ATTACK FIRST - THEN COLLECT DATA FOR THIS REPORT.
(b) DO NOT "GUN DECK" THIS REPORT - IF DATA CANNOT BE ESTIMATED WITH REASONABLE ACCURACY
    ENTER A DASH IN SPACE FOR WHICH NO DATA IS AVAILABLE.
(c) DRAW A CIRCLE AROUND THE APPROPRIATE ENTRY IN THIS REPORT WHEREVER SUITABLE,

WEATHER CONDITIONS [HANDWRITTEN: Dark and hazy - estimated visibility 3,000 yards,
wind from NE]

SEA CONDITIONS [HANDWRITTEN: Moderate sea from NE]

SOUND CONDITIONS (if applicable) [HANDWRITTEN: Good]

TYPE OF OPERATIONS [HANDWRITTEN: War patrol off North Pass to Truk Island]

SPECIFIC OBJECTIVE [HANDWRITTEN: Patrol North Pass to Truk Island]

FORCES ENGAGED: OWN [HANDWRITTEN: 1 submarine - U.S.S. GRAMPUS]

(Name and Type) ENEMY [HANDWRITTEN: Three Japanese patrol vessels of approximately
500 tons each. (Estimated).]

(TYPE OF ATTACK OWN/Enemy - scratch one) [HANDWRITTEN: Surface, aided by sound and strong
indication of employment of Radar.]

BRIEF DESCRIPTION [HANDWRITTEN: Upon surfacing sighted light astern. Shortly afterwards
sound ping heard on port beam, changed course away. About
30 minutes later, slowed to listen. Sound heard propellers bearing
097° R. Sighted enemy on starboard beam, distance 1000 - 1500 yards.
Enemy illuminated and commenced firing with deck gun. Shell hit sus-
tained while diving. Depth charging commenced 5 minutes later.]

WEAPONS EMPLOYED:
Own [HANDWRITTEN: None - submerged to escape]
Enemy [HANDWRITTEN: Deck guns of about 4" - 5" dia., and depth charges]

AMMUNITION EXPENDED [HANDWRITTEN: None]

EVASIVE TACTICS EMPLOYED:
Own [HANDWRITTEN: Submerged to depth of 286 feet. Ran silent on various
courses to escape.]
Enemy [HANDWRITTEN: None]

CSPF-4-7-42-1000 ENCLOSURE D 2

— page 195 —
FOR TORPEDO ATTACK (Own):

Firing range

Keel depth

Straight/curved shot(s)

Type spread

Attack: (unopposed
(check) (opposed by air screen/close screen

TYPE ATTACK
(check)

Periscope
Periscope and TDC
Sound
Sound and TDC

Detected: (prior to firing
(check) (after firing
(undetected

RESULTS: (Certain)

(Estimated)

DAMAGE TO OWN SHIP One shell hit in cigarette deck bulwark one foot above
engine induction. Cigarette deck shattered. .50 caliber machine gun
mount destroyed. Bridge riddled with shrapnel. Both after antennas
carried away.
BRIEF REMARKS An certain patrol vessels had plotted our position on
submerging in the A.M. by Radar. On surfacing they picked us up and
commenced attack.

E.S. HUTCHINSON,
Lieutenant Commander, U.S. Navy,
Commanding.

— page 196 —
FOR TORPEDO ATTACK (Own):
Firing range
Keel depth
Straight/curved shot(s)
Type spread

Attack: (unopposed
(check) (opposed by air screen/close

TYPE ATTACK
(check)
Periscope
Periscope and TDC
Sound
Sound and TDC

Detected: (prior to firing
(check) (after firing
(undetected

RESULTS: (Certain)

— page 197 —
CONFIDENTIAL
U. S. SUBMARINE ACTION REPORT
U.S.S. GRANPUS (SS207) Date: May 30, 1942
Time 0646-0732 (-9 ZT) Location: Latitude 03 - 37 - 00 N
Longitude 142 - 10 - 00 E

INSTRUCTIONS
(a) ATTACK FIRST - THEN COLLECT DATA FOR THIS REPORT.
(b) DO NOT "GUN DECK" THIS REPORT - IF DATA CANNOT BE ESTIMATED WITH REASONABLE ACCURACY
ENTER A DASH IN SPACE FOR WHICH NO DATA IS AVAILABLE.
(c) DRAW A CIRCLE AROUND THE APPROPRIATE ENTRY IN THIS REPORT WHEREVER SUITABLE.

WEATHER CONDITIONS Clear, scattered clouds, visibility excellent
SEA CONDITIONS Sea calm, slight swells, water clear and glassy
SOUND CONDITIONS (if applicable) Good

TYPE OF OPERATIONS War patrol - enroute destination in accordance with
Consubpac Secret Operation Plan No. 44-42

SPECIFIC OBJECTIVE Destruction of enemy freighter

FORCES ENGAGED: OWN One submarine - U.S.S. GRANPUS

(Name and Type) ENEMY One Japanese freighter of approximately 3000 tons

TYPE OF ATTACK (Own/Enemy - scratch one) Submerged torpedo and surface gun.

BRIEF DESCRIPTION Sighted target at 0054 in bright moonlight with 1200
yards ahead, target angle. Circled ahead and submerged at daylight.
Made submerged periscope approach and attack. Fired 2 torpedoes
that missed. Surfaced and engaged enemy with deck gun, no hits.
Enemy maneuvered out of gun range.

WEAPONS EMPLOYED: Torpedoes and 3"/.50 caliber deck gun
Own
Enemy None

AMMUNITION EXPENDED 2 Mark XIV torpedoes, 14 rounds 3" service ammunition

EVASIVE TACTICS EMPLOYED:
Own None
Enemy Turned away and increased speed

CSPF-4-7-42-1000 ENCLOSURE D
3

— page 198 —
FOR TORPEDO ATTACK (Own):
Firing range [HANDWRITTEN: 1200 yards]
Keel depth [HANDWRITTEN: 65 feet]
Straight/ [HANDWRITTEN: 2° angular]
Type spread [HANDWRITTEN: 2° angular]

TYPE ATTACK
(check)
Periscope
Periscope and TDC [HANDWRITTEN: X]
Sound
Sound and TDC [HANDWRITTEN: X]

Attack: (unopposed
(check) (opposed by air screen/close screen

Detected: (prior to firing
(check) (after firing [HANDWRITTEN: X])
(undetected
RESULTS: (Certain) [HANDWRITTEN: No hits attained]

(Estimated)

DAMAGE TO OWN SHIP [HANDWRITTEN: None]

BRIEF REMARKS [HANDWRITTEN: Estimated draft 11 feet. Torpedoes set to run at 10]
[HANDWRITTEN: feet, giving actual 14 feet. Torpedoes appeared to run normal.]
[HANDWRITTEN: Cause of miss probable change of course of target.]

[HANDWRITTEN: E.S. HUTCHINSON,]
[HANDWRITTEN: Lieutenant Commander, U.S. Navy,]
[HANDWRITTEN: Commanding.]

— page 199 —
FF6-4/
A16-3

SUBMARINES, SOUTHWEST PACIFIC

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

U.S.S. SARGO (SS188), Flagship,
June 30, 1942.

FIRST ENDORSEMENT to
CO GRAMPUS Conf. ltr A16-3/
SS207/Ser. 04 of 6-30-42.

From: Commander Submarines, SOUTHWEST PACIFIC.
To : Commander in Chief, U.S. PACIFIC FLEET.

Subject: U.S. Submarine Action Reports - forwarding
of.

1. Forwarded.

JAMES FIFE,
Chief of Staff.

— page 200 —
A16-3/SA/(05)
Serial 02279
[STAMP: CONFIDENTIAL]
CONFIDENTIAL

From: Commander-in-Chief, U. S. Pacific Fleet.
To: Commander Submarines, Pacific Fleet.

Subject: U. S. Submarine Action Reports -
         Forwarding of.

1. Forwarded.

[HANDWRITTEN: paw]
[HANDWRITTEN: L]
[HANDWRITTEN: J]
[STAMP: JUL 25 1942]

2nd Endorsement on
CO GRAMPUS Conf A16-3
SS207 Serial 04
dated June 30, 1942.

P. V. MERCER,
By direction.

[STAMP: WAR OFFICE OF COMMANDER IN CHIEF 1942]
[SIGNATURE: illegible, stylized J over stamp]

01
02
[HANDWRITTEN: /] 05
[HANDWRITTEN: /] 06
11
12
13
15
16
17
18
20
22
25
26
27
30
50
75
86
90
95
96

— page 201 —
[HANDWRITTEN: 2 M 43]
In Reply
Refer to: [STAMP: DECLASSIFIED]
Serial

111-1/S3207

Serial 05
[STAMP: DECLASSIFIED]
[STAMP: CONFIDENTIAL]

From: The Commanding Officer.
To : The Chief of the Bureau of Ships.

Subject: War Damage inflicted upon U.S.S. GRAMPUS, report
of.

[HANDWRITTEN: Original copy]
U. S. S. GRAMPUS

10-pk

June 30, 1942.

[HANDWRITTEN, vertical in margin: Original Copy #73 (1-80) / 1211-1-18D / 9030 S. D.]

References: (a) Buships Ltr. C-F3/L11-1(374); C-M28/A2-11
of April 17, 1942.

Enclosure: (A) Photographs of subject damage.

1. At 1906 (ZT) on May 17, 1942, the U.S.S. GRAMPUS
surfaced on course 270° T., about twenty miles North West of
the North pass to Truk Island in approximate Latitude 08°-02'-
00" North and Longitude 151°-30'-00" East. This vessel had
been conducting submerged patrol in assigned area. There was
a moderate sea from the North East with a surface wind of about
eight knots, estimated visibility 4,000 yards. 1910 sighted
a light astern that appeared to be a flash of a searchlight.
At 1912 changed course to 340° T., and headed away. At 1917
nothing was sighted upon careful observation. At 1927 changed course to
000° T., and went to standard speed on two engines. 1941
slowed to listen with sound gear. 1947 simultaneously sighted
approximately 1500 yards on the starboard beam identified as a Japanese patrol vessel of
about 500 tons. Immediately, thereafter, the patrol vessel
illuminated with its searchlight. The bridge was cleared and
a quick dive was made to escape. At 1949 while at 30 foot
depth, a sharp crack was felt in the vicinity of the bridge.
The ship was checked quickly for leaks but no flooding was
detected. The ship was ordered to run silently at deep sub-
mergence. At 1952 upon reaching 100 foot depth, the explosion
of three depth charges were felt which were evidently close
by. Between 2000 and 2005 eight to ten depth charges were felt and
sound gear from three different sources. At 2044 one explosion
was heard at a long range. Shortly afterwards lost contact with enemy. At 2125 surfaced
on course 320° T.

2. A survey of the ship revealed that the following
damage had been sustained: (1) Large shell hole approximately
4 feet in diameter in the starboard bulkhead of the cigarette
deck. (2) Wooden gratings on cigarette deck splintered. (3)
Cigarette deck above engine induction dished in and riddled

- 1 -

— page 203 —
[STAMP: S-E-C-R-E-T]
[STAMP: DECLASSIFIED]

SUBMARINES, SOUTHWEST PACIFIC
U. S. S. SARGO (SS188) Flagship

SUPPLEMENTARY WAR PATROL REPORT
U.S.S. GRAMPUS - Period July 8, 1942 to August 30, 1942

1. The GRAMPUS was directed to conduct an offensive war
patrol against enemy combatant and transport ships in the Western
PHILIPPINES. The route to and from the assigned area was via LOMBOK
STRAIT, MAKASSAR STRAIT, SIEUTU PASS and CUYO EAST PASS to the
western coasts of MINDORO and LUZON between AMBULONG ISLAND and
latitude 19° north, paying particular attention to the MANILA BAY
area.

2. Enemy Contacts.

0740, July 18. In latitude 3°-50' south, longitude 119°-10'
east a tanker or small ore carrier of 6,000
tons escorted by one corvette. Made an attack.

0704, August 3. In latitude 18°-55' north, longitude 119°-36'
east a seaplane tender or minelayer of about
4000 tons. Unescorted, course 210°, speed
16 knots. Unable to close range and no attack
made.

0803, August 4. In latitude 18°-55' north, longitude 119°-36' east
an oil tanker of about 10,000 tons. Unescorted
on zigzagging, speed 13 knots. Unable to close
range and no attack made.

1120, August 12. In latitude 14°-12' north, longitude 119°-34' east
a cargo vessel of about 3000 tons, on zigzagging
course, speed 11 knots, unescorted. Made an
attack.

1753, August 16. In latitude 8°-04' north, longitude 120°-45' east
a destroyer of the AMAGIRI class. Did not attack.

0829, August 19. In latitude 00°-54' north, longitude 119°-16.5'
east, a cargo-passenger ship of about 8000 tons
on course 185°, speed 15 knots. Escorted by one
patrol vessel. Unable to close the range and
made no attack.

-1-

— page 204 —
S-E-C-R-E-T

SUBMARINES, SOUTHWEST PACIFIC

U. S. S. SARGO (SS188) Flagship

SUPPLEMENTARY WAR PATROL REPORT
U.S.S. GRAMPUS - Period July 8, 1942 to August 30, 1942

3. Attacks Made.

0740, July 18. Fired a three torpedo spread at a tanker or small
                    ore carrier of about 6000 tons at range of 2600
                    yards. All torpedoes missed. The escort attacked
                    with depth charges. Misses believed due to an
                    underestimate of target's speed and long firing
                    range. All torpedoes ran normally.

1120, August 12. Fired a three torpedo spread at a cargo vessel of
                    about 3000 tons at a range of 1600 yards. All
                    torpedoes missed. Misses believed due to target
                    changing course 20° just before firing, and
                    one miss due to failure to explode.
                    All torpedoes ran normally.

— page 205 —
[HANDWRITTEN: 243]
[HANDWRITTEN: (501 Bio-61)]
Reg. No. [HANDWRITTEN: 1.S.S. 243]
R.S. No. [HANDWRITTEN: 10 0809]

In Reply
Refer to:

A16-3/SS207

Serial ( 07 )

[STRIKETHROUGH: DECLASSIFIED]
CONFIDENTIAL

From : The Commanding Officer.
To : The Commander in Chief, U.S. PACIFIC FLEET.
Via : (1) The Commander Submarines, SOUTHWEST PACIFIC.
Subject: U.S. Submarine Action Reports - forwarding
of.
Reference: (a) COMINCH CONFIDENTIAL Serial 0332 of
March 7, 1942.
Enclosure: (A) U.S. Submarine Action Report dated P-2
July 18, 1942.
(B) U.S. Submarine Action Report dated P-3
August 12, 1942.

1. In compliance with reference (a), enclosures
(A) and (B) are forwarded herewith.

2. One copy each of enclosures (A) and (B) have
been forwarded direct to Commander in Chief, U.S. FLEET. [HANDWRITTEN: ✓]

E.S. HUTCHINSON.

[HANDWRITTEN: Original P.P]
[HANDWRITTEN: 3/21/58]
[STAMP: COMMANDER IN CHIEF U.S. FLEET RECEIVED]
[STAMP: 10-pk]
[STAMP: 1942 OCT 13 10 06]

U. S. S. GRAMPUS

September 1, 1942.

1.

— page 206 —
[HANDWRITTEN: Reg. No. SQ.1350. (ComSubPac)]
[HANDWRITTEN: R.S. No. 11 01601]

CONFIDENTIAL
U. S. SUBMARINE ACTION REPORT

U. S. S. GRAMPUS (SS207)
Time 0757
Location:
Date: July 18, 1942.
Latitude 03 - 50 (S)
Longitude 119 - 10 (E)

INSTRUCTIONS

a) Attack First--Then collect data for this report.
(b) Do not "gun deck" this report--if data cannot be estimated with reasonable accuracy enter a dash
    in space for which no data is available.
(c) Draw a circle around the appropriate entry in this report wherever suitable.

Weather Conditions Weather clear, scattered clouds, visibility good.
Sea Conditions Slightly choppy - sea from north.
Sound Conditions (if applicable) Good.
Type of Operations War Patrol - operating under Commander Southwest Pacific
Secret Operation Plan #32-42.
Specific Objective Submerged patrol to sink any type enemy ship.

Forces Engaged: Own
One submarine - U.S.S. GRAMPUS (SS207)
(Name and Type) Enemy (1) One tanker or ore carrier of about 6,000 tons.
(2) One corvette type escort.
Type of Attack (Own / X) Submerged torpedo.

Brief Description Sighted enemy at 11,000 yards with 30° starboard angle on
the bow. Closed to attack position and fired three torpedoes
at 2200 yard range, track angles 129 (S), 131 (S), 133 (S). No ex-
plosions heard. Torpedoes were set to run at 6 feet depth.

Weapons Employed: Own Torpedoes.
Enemy Depth charges.
Ammunition Expended: Three Mark XIV torpedoes.

Evasive Tactics Employed:
Own Various courses at deep submergence (200 feet).
Enemy Increased speed and turned away.

[STAMP: COMMANDER IN CHIEF U.S. FLEET RECEIVED 1942 NOV 24 14 58]

2

— page 207 —
`[UNCLEAR: 10010 11]`

For Torpedo Attack (Own):

Firing range 2200 yards
Keel depth 65 feet

Straight/[CROSSED OUT: Run]
Type spread 3° angular

Type Attack
(check)
[CROSSED OUT: Periscope]
Periscope and TDC
[CROSSED OUT: Sound]

Attack: [CROSSED OUT: Submerged]
(check) (opposed by [CROSSED OUT: air/surface]/close screen
Detected: [CROSSED OUT: Visual]
(check) (after firing
[CROSSED OUT: Visual]

RESULTS: (Certain) Target was not sunk. The after half of the target was
obscured by a light blue smoke 2 minutes and 19 seconds after first
torpedo was fired. The Commanding Officer believes that this smoke
came from torpedo.
(Estimated)

DAMAGE TO OWN SHIP None.

BRIEF REMARKS The attack was thoroughly analized and all firing bear-
ings checked within 1° as computed by Mark VII angle solver. The
Target's bearings and ranges check with the T.D.C. during the entire
attack. The only reasons that can be given for an unsuccessful attack
are (1) Target's maneuvers (2) Torpedoes ran under and did not
detonate.

[SIGNATURE: E.S. Hutchison]
E.S. HUTCHINSON.

— page 208 —
11 01601

CONFIDENTIAL
U. S. SUBMARINE ACTION REPORT

U. S. S. GRAMPUS (SS207)
Time 1306 Location: Date August 12, 1942.
Latitude 14 - 12 (N)
Longitude 119 - 34 (E)

INSTRUCTIONS
a) Attack First--Then collect data for this report.
(b) Do not "gun deck" this report--If data cannot be estimated with reasonable accuracy enter a dash
in space for which no data is available.
(c) Draw a circle around the appropriate entry in this report wherever suitable.

Weather Conditions Overcast with scattered shower, visibility fair.
Sea Conditions Small swells from the east.
Sound Conditions (if applicable) Good.
Type of Operations War Patrol - operating under Commander Southwest Pacific's
Secret Operation Plan #32-42.
Specific Objective Submerged patrol to sink any type enemy ship.

Forces Engaged: Own
One submarine - U.S.S. GRAMPUS (SS207).
(Name and Type) Enemy Cargo vessel of about 3000 tons.

Type of Attack (Own / Exxxxxxxxtxxtxxt) Submerged torpedo.

Brief Description Enemy sighted at 15,000 yards, zig-zagging, with a speed
of about 11 knots. Closed to attack position and fired
3 torpedoes at 1100 yard range, track angles 137 (P), 140 (P), 142 (P).
No detonations heard. Center torpedo of spread was seen to run under
target amidships.

Weapons Employed:
Own Torpedoes.
Enemy Gun fire (doubtful). Possible Y gun. Possible
bombs from planes.

Ammunition Expended Three Mark XIV torpedoes.

Evasive Tactics Employed:
Own None.
Enemy Increased speed and changed course.

[STAMP: COMMANDER IN CHIEF
U. S. FLEET
RECEIVED
194 NOV 24
14 58]

3.

— page 210 —
[HANDWRITTEN: Original 2 B
3/21/58]

DECLASSIFIED
U. S. SUBMARINE ACTION REPORT

U.S.S. GRAMPUS (SS207)
Time 0707

Date: October 12, 1942.
Location: Latitude 8 - 04 S.
Longitude 157 - 53.5 E.

INSTRUCTIONS
(a) ATTACK FIRST - THEN COLLECT DATA FOR THIS REPORT.
(b) DO NOT "GUN DECK" THIS REPORT - IF DATA CANNOT BE ESTIMATED WITH
REASONABLE ACCURACY ENTER A DASH IN SPACE FOR WHICH NO DATA IS
AVAILABLE.
(c) DRAW A CIRCLE AROUND THE APPROPRIATE ENTRY IN THIS REPORT WHEREVER
SUITABLE.

WEATHER CONDITIONS - Excellent. Clear, sunny.
SEA CONDITIONS - Flat calm.
SOUND CONDITIONS (if applicable) - Good.

TYPE OF OPERATIONS - Submerged Patrol.

SPECIFIC OBJECTIVE - Any type enemy ship.

FORCES ENGAGED: OWN - 1 Submarine (GRAMPUS)
(Name and Type) ENEMY - 1 Destroyer (SHINONOME CLASS).

TYPE OF ATTACK (Own) - Submerged Torpedo.

BRIEF DESCRIPTION - Sighted enemy destroyer being dive bombed. Target
on course 320° T., making high speed. Sharp angle on the bow.
Headed away from track to fire stern tubes. Target came by so
fast tubes were late in being made ready. Fired 2 torpedoes at
120° (S) track with 3° angular spread.

WEAPONS EMPLOYED:
Own - Mark XIV Mod. 1 torpedo.

Enemy - Two depth charges.

AMMUNITION EXPENDED - Two Mark XIV torpedoes.

EVASIVE TACTICS EMPLOYED:

Own - Deep submergence (200 feet), silent running.

Enemy - Turned toward.

— page 211 —
FOR TORPEDO ATTACK (Own):
Firing range 2100 - 2300 yards
Keel depth 62 feet
Straight/curved shot(s)
Type spread 3° angular
Attack: (unopposed
(check) (opposed-by-air-screen/close-screen

TYPE ATTACK
(check)
[X] Periscope
[ ] Periscope and TDC
[ ] Sound
[ ] Sound and TDC

Detected: [X] (prior-to-firing
(check) [ ] (after firing
[ ] (undetected

RESULTS: (Certain) No hits. Missed both astern.

(Estimated)

DAMAGE TO OWN SHIP - None.

BRIEF REMARKS - Missed due to underestimation of target speed and use
of large track (120° S) because of delay in getting after tubes
ready. Planned on using a 70° to 90° starboard track.

[SIGNATURE: J.R. Craig]
J.R. CRAIG,
Lieutenant Commander, U.S.N.,
Commanding.

— page 212 —
CONFIDENTIAL
U. S. SUBMARINE ACTION REPORT

U.S.S. GRAMPUS (SS207) Date: October 18, 1942
Time 0646 Location: Latitude 07 - 47 S.
Longitude 157 - 19.1 E.

INSTRUCTIONS
(a) ATTACK FIRST - THEN COLLECT DATA FOR THIS REPORT.
(b) DO NOT "GUN DECK" THIS REPORT - IF DATA CANNOT BE ESTIMATED WITH REASONABLE ACCURACY
WITHIN A DASH IN SPACE FOR WHICH NO DATA IS AVAILABLE.
(c) DRAW A CIRCLE AROUND THE APPROPRIATE ENTRY IN THIS REPORT WHEREVER SUITABLE.

WEATHER CONDITIONS Excellent. Clear sunny.

SEA CONDITIONS Calm.

SOUND CONDITIONS (if applicable) Good.

TYPE OF OPERATIONS Submerged patrol.

SPECIFIC OBJECTIVE Any type enemy ship.

FORCES ENGAGED: OWN 1 Submarine (GRAMPUS).

(Name and Type) ENEMY Three light cruisers and four destroyers.

TYPE OF ATTACK (Own/Enemy - scratch one) Submerged Torpedo.

BRIEF DESCRIPTION Fired four torpedoes at leading cruiser (JINTSU CLASS)
from periscope at 1400 yards from track on 155° (P) track at estimated
speed of 27 knots. Depth control lost and prevented firing of other
torpedoes. One explosion heard.

WEAPONS EMPLOYED:
Own Mark XIV Mod. 1 torpedoes.
Enemy Sixteen depth charges.

AMMUNITION EXPENDED Four Mark XIV Mod. 1 torpedoes.

EVASIVE TACTICS EMPLOYED:
Own Deep submergence - silent running.
Enemy Turned away.

CSPF-4-7-42-1000 ENCLOSURE D
2

— page 213 —
FOR TORPEDO ATTACK (Own):
Firing range 1600 yards
Keel depth 62 feet
[CROSSED OUT: Straight] curved shot(s)
Type spread Shifted point of aim.

Attack: [CROSSED OUT: Periscope]
(check) (opposed by [CROSSED OUT: Destroyer] close screen
Detected: [CROSSED OUT: Periscope]
(check) (after firing [CROSSED OUT: Periscope]

TYPE ATTACK
(check)
[CROSSED OUT: Sound]
Periscope and TDC
[CROSSED OUT: Sound]
[CROSSED OUT: Sound and TDC]

RESULTS: (Certain)
One hit heard by crew. Loss of depth control,
(Estimated) vibration of periscope, and oncoming depth charge
attack prevented periscope observation. Sound heard target screws
slow and a continuous water noise on 090° bearing of target.

DAMAGE TO OWN SHIP None.

BRIEF REMARKS Planned to fire 4 torpedoes at leading cruiser and 2 at
second but unable to carry out because of loss of depth control
causing near broaching. Large track caused by underestimating time
to turn to 90° track.

DISTRIBUTION:
Original in War Diary CTF-42 [SIGNATURE: J.R. CRAIG,]
Copy to: Cominch [HANDWRITTEN: J.R. CRAIG,]
Comsopac [HANDWRITTEN: Lieutenant Commander, U.S. Navy,]
Comsubron 6 [HANDWRITTEN: Commanding.]
Comsubdiv 61
GRAMPUS Folder

— page 214 —
CONFIDENTIAL

U. S. SUBMARINE ACTION REPORT

U. S. S. GRAMPUS (SS207) Date: November 6 1942
Time 0610 Location: Latitude 7 - 48.5 S.
Longitude 157 - 29.4 E.
INSTRUCTIONS
(1) ATTACK FIRST - THEN COLLECT DATA FOR THIS REPORT.
(2) DO NOT "GUN DECK" THIS REPORT - IF DATA CANNOT BE ESTIMATED WITH REASONABLE
ACCURACY ENTER A DASH IN SPACE FOR WHICH NO DATA IS AVAILABLE.
(3) DRAW A CIRCLE AROUND THE APPROPRIATE ENTRY IN THIS REPORT WHEREVER SUITABLE.

WEATHER CONDITIONS Excellent - clear - sunny.
SEA CONDITIONS Flat calm.
SOUND CONDITIONS (if applicable) Good.
TYPE OF OPERATIONS Submerged patrol.

SPECIFIC OBJECTIVE Any type enemy ship.

FORCES ENGAGED: OWN
1 Submarine (GRAMPUS).
(Name and Type) ENEMY one cruiser and seven destroyers.

TYPE OF ATTACK (Own XXXXX - scratch one) Submerged torpedo.

BRIEF DESCRIPTION Fired three torpedoes at destroyer (AMAGIRI CLASS)
at 1200 yard range, angle on bow 80° S., estimated speed of 33
knots. Formation was zig-zagging excessively.

WEAPONS EMPLOYED:
Own Mark XIV Mod. 1 torpedoes.
Enemy None.

AMMUNITION EXPENDED Three Mark XIV Mod. 1 torpedoes.

EVASIVE TACTICS EMPLOYED:
Own None.
Enemy None - did not see torpedoes running in path of sun.

3

— page 215 —
FOR TORPEDO ATTACK (Own):
Firing range [HANDWRITTEN: 1500 yards.]
Keel depth [HANDWRITTEN: 62 feet.]
Straight/xxxxxxshot(s)
Type spread [HANDWRITTEN: 4° angular]
Attack: xxxxxxx
(check) (opposed by air screen/close screen
Detected: xxxxxxxxx
(check) (after firing
x
One explosion heard by crew and sound while C.O. was
making sweep of horizon. Sound heard targets screws
slow. When again picked up by periscope a heavy cloud of black smoke
was over target, he had dropped astern of
formation and had a flag hoist flying. Headed for target to make a
kill. Seven minutes after firing 3 muffled explosions heard. A quick
sweep showed no ships near and no wake columns. At 15 minutes after
firing xxxxxxx a periscope observation was made and there was no
sign of original formation or of target. Target believed to have sunk
as his screws never speeded up and he should have still be in sight.
Muffled explosion may have been boiler exploding.

TYPE ATTACK
(check)
xxxxxx
Periscope and TDC
x

DAMAGE TO OWN SHIP [HANDWRITTEN: None.]

BRIEF REMARKS [HANDWRITTEN: Planned to attack cruiser but a 70°-80° zig put us in
middle of formation and on the cruisers track with a range of 1500
yards. Cruiser passed astern of us about 125 yards. Selected
destroyer on our port bow as target and fired on him.]

[SIGNATURE: J.R. Craig]
J.R. CRAIG,
Lieutenant Commander, U.S. Navy,
Commanding.

DISTRIBUTION:
Original in War Diary CTF 42
Copy to: Cominch
Comsopac
Comsubron 6
Comsubdiv 61
GRAMPUS Folder

— page 216 —
CONFIDENTIAL
U. S. SUBMARINE ACTION REPORT

U.S.S. GRAMPUS (SS207) Date: November 6, 1942
Time 0641 Location: Latitude 7 - 49.7 (S)
Longitude 157 - 27.7 (E)

INSTRUCTIONS
(1.) ATTACK FIRST - THEN COLLECT DATA FOR THIS REPORT.
(2.) DO NOT "GUN DECK" THIS REPORT - IF DATA CANNOT BE ESTIMATED WITH REASONABLE
ACCURACY ENTER A DASH IN SPACE FOR WHICH NO DATA IS AVAILABLE.
(3.) DRAW A CIRCLE AROUND THE APPROPRIATE ENTRY IN THIS REPORT WHEREVER SUITABLE.

WEATHER CONDITIONS Excellent - clear - sunny.

SEA CONDITIONS Flat calm.

WIND CONDITIONS (if applicable) Good.

TYPE OF OPERATIONS Submerged patrol.

PACIFIC OBJECTIVE Any type enemy ship.

FORCES ENGAGED: OWN
1 Submarine (GRAMPUS).

(Name and Type) ENEMY seven destroyers.

TYPE OF ATTACK (Own/[STRUCK THROUGH: Enemy] - scratch one) Submerged torpedo.

BRIEF DESCRIPTION Fired three torpedoes at one destroyer (AMAGIRI CLASS)
at 2100 yard range at 110° P., track, estimated speed of 30 knots.

WEAPONS EMPLOYED:
Own Mark XIV Mod. 1 torpedoes.
Enemy 32 depth charges.

AMMUNITION EXPENDED Three Mark XIV Mod. 1 torpedoes.

EVASIVE TACTICS EMPLOYED:
Own Ran silent at 150 feet and attempted to keep enemy on
stern.
Enemy Turned away.

4

— page 217 —
FOR TORPEDO ATTACK (Own):
Firing range 2100 yards (appr.)
Keel depth 62 feet.
Straight/ [HANDWRITTEN: 4] shot(s)
Type spread 2° angular.

Attack: (unopposed)
(check) [TYPED: x] opposed by air escort and/or surface craft

Detected: [TYPED: x] prior to firing
(check) (after firing
[TYPED: x] undetected

TYPE ATTACK
(check)
[TYPED: x] Sound
Periscope and TDC
[TYPED: x] Sound
[TYPED: x] Sound and TDC

RESULTS: (Certain) No hits.

(Estimated)

DAMAGE TO OWN SHIP None.

BRIEF REMARKS Formation was zig-zagging excessively. Believe speed of
30 knots used was too slow. Torpedo run was too long for such a
high speed target.

DISTRIBUTION:
Original in War Diary CTF 42
Copy to: Cominch
Comsopac
Comsubron 6
Comsubdiv 61
GRAMTUS Folder
[SIGNATURE: J.R. Craig]
J.R. CRAIG,
Lieutenant Commander, U.S. Navy,
Commanding.

— page 218 —
CONFIDENTIAL
U. S. SUBMARINE ACTION REPORT
U.S.S. [HANDWRITTEN: GRAMPUS (SS207)] Date: [HANDWRITTEN: November 9,] 1942
Time [HANDWRITTEN: 0749] Location: Latitude [HANDWRITTEN: 7 - 32.5 S.]
Longitude [HANDWRITTEN: 157 - 07.5 E.]
INSTRUCTIONS
(a) ATTACK FIRST - THEN COLLECT DATA FOR THIS REPORT.
(b) DO NOT "GUN DECK" THIS REPORT - IF DATA CANNOT BE ESTIMATED WITH REASONABLE
ACCURACY ENTER A DASH IN SPACE FOR WHICH NO DATA IS AVAILABLE.
(c) DRAW A CIRCLE AROUND THE APPROPRIATE ENTRY IN THIS REPORT WHEREVER SUITABLE.

WEATHER CONDITIONS [HANDWRITTEN: Excellent. Clear sunny.]

SEA CONDITIONS [HANDWRITTEN: Calm.]

SOUND CONDITIONS (if applicable) [HANDWRITTEN: Good.]

TYPE OF OPERATIONS [HANDWRITTEN: Submerged patrol.]

PACIFIC OBJECTIVE [HANDWRITTEN: Any type enemy ship.]

FORCES ENGAGED: OWN
[HANDWRITTEN: 1 Submarine (GRAMPUS)]
Name and Type) ENEMY [HANDWRITTEN: Six destroyers.]

TYPE OF ATTACK (Own/[HANDWRITTEN: ENEMY] - scratch one) [HANDWRITTEN: Submerged torpedo.]

BRIEF DESCRIPTION [HANDWRITTEN: Fired three torpedoes at one destroyer (ASASHIO]
[HANDWRITTEN: CLASS) at 1500 yard torpedo run, 90° (S) track, at estimated speed]
[HANDWRITTEN: of 30 knots.]

WEAPONS EMPLOYED:
Own [HANDWRITTEN: Mark XIV Mod. 1 torpedoes.]
Enemy [HANDWRITTEN: 37 depth charges.]

AMMUNITION EXPENDED [HANDWRITTEN: Three Mark XIV Mod. 1 torpedoes.]

EVASIVE TACTICS EMPLOYED:
Own [HANDWRITTEN: Deep submergence - silent running.]
Enemy [HANDWRITTEN: Turned away.]

[HANDWRITTEN: 5]

— page 219 —
FOR TORPEDO ATTACK (Own):
Firing range [HANDWRITTEN: 1350] yards
Keel depth [HANDWRITTEN: 62] feet.
Straight/XXXXXX shot(s)
Type spread [HANDWRITTEN: 4°] angular
Attack: (unopposed
(check) X
Detected: X
(check) (after firing
XXXXXXXX

TYPE ATTACK
(check)
XXXXXXXX
Periscope and TDC
X

RESULTS: (Certain) [HANDWRITTEN: 1 hit just forward of mainmast seen by C.O. and 2]
[HANDWRITTEN: explosions heard. Targets screws stopped after first explosion and]
[HANDWRITTEN: was not heard to start up again. Calculations indicate two torpedo]
[HANDWRITTEN: hits.]
(Estimated)

DAMAGE TO OWN SHIP [HANDWRITTEN: None.]

BRIEF REMARKS [HANDWRITTEN: The Commanding Officer believes this destroyer was sunk]
[HANDWRITTEN: but could not remain at periscope depth to confirm this because of]
[HANDWRITTEN: five additional destroyers in the immediate vicinity.]

DISTRIBUTION:
Original in War Diary CTF 42
Copy to: Cominch
Comsopac
Comsubron 6
Comsubdiv 61
GRAMPUS Folder

[SIGNATURE: J.R. Craig]
J.R. CRAIG,
Lieutenant Commander, U.S. Navy,
Commanding.

— page 220 —
CONFIDENTIAL

U. S. SUBMARINE ACTION REPORT

U.S.S. GRAMPUS (SS207)
Time 0930
Date: November 15, 1942
Location: Latitude. 7 - 36.1 (S)
Longitude 157 - 13.0 (E)

INSTRUCTIONS:
(a) ATTACK FIRST - THEN COLLECT DATA FOR THIS REPORT.
(b) DO NOT "GUN DECK" THIS REPORT - IF DATA CANNOT BE ESTIMATED WITH REASONABLE ACCURACY
ENTER A DASH IN SPACE FOR WHICH NO DATA IS AVAILABLE.
(c) DRAW A CIRCLE AROUND THE APPROPRIATE ENTRY IN THIS REPORT WHEREVER SUITABLE.

WEATHER CONDITIONS Excellent - clear - sunny.

SEA CONDITIONS Flat calm.

SOUND CONDITIONS (if applicable) Good.

TYPE OF OPERATIONS Submerged patrol.

SPECIFIC OBJECTIVE Any type enemy ship.

FORCES ENGAGED: OWN 1 submarine (GRAMPUS).

(Name and Type) ENEMY one destroyer.

TYPE OF ATTACK (Own [UNCLEAR: Surface]- scratch one) Submerged torpedo.

BRIEF DESCRIPTION Fired three torpedoes at destroyer (ASASHIO CLASS) with
a torpedo run of 2500 yards, 110° P., estimated speed 30 knots.

WEAPONS EMPLOYED:
Own Mark XIV Mod. 1 torpedoes.
Enemy 17 depth charges.

AMMUNITION EXPENDED Three Mark XIV Mod. 1 torpedoes.

EVASIVE TACTICS EMPLOYED:
Own Ran silent at 150 feet and attempted to keep enemy on
stern.
Enemy Turned toward.

CSPF--4-7-42-1000
ENCLOSURE D
6

— page 221 —
FOR TORPEDO ATTACK (Own):

Firing range 2500 yards.
Keel depth 62 feet.
[CROSSED OUT: straight] / curved shot(s)
Type spread 3° angular.

Attack: (unopposed)
(check) [CROSSED OUT: opposed by escort]

Detected: [CROSSED OUT: Before firing]
(check) (after firing [CROSSED OUT: by escort])

RESULTS: (Certain) No hits.

(Estimated)

DAMAGE TO OWN SHIP None.

BRIEF REMARKS All torpedoes miss ahead. We managed to close to this
position so many times without firing it was felt that with one tar-
get and spreading well there was a good chance for a hit. Results
indicate that firing torpedoes at high speed targets at a greater
torpedo run than 2000 yards is not advisable.

DISTRIBUTION:
Original In War Diary CTF42 Lieutenant Commander, U.S. Navy,
Copy to: Cominch
Comsopac
Comsubron 6
Comsubdiv 61
GRAMPUS Folder

[SIGNATURE: J.R. Craig]
J.R. CRAIG,
Commander, U.S. Navy,
Commanding.

— page 222 —
In Reply
Refer to:
A16-3/SS207
Serial 0005
[STAMP: DECLASSIFIED]
From:
To :
Subject:
Enclosure:

1.
herewith.

2.
October 13, 1942, will be forwarded under separate cover
upon completion of printing.

U.S.S. GRAMPUS
November 23, 1942.

The Commanding Officer.
The Commander TASK GROUP 42.1.

Landing of Coast Watchers.

(A) Narrative.
(B) Track Chart of Landing 'B'. [HANDWRITTEN: { MISSING]
(C) Track Chart of Landing 'A'.

Enclosures (A), (B), and (C) are forwarded

Photographs taken during the reconnaissance

J.R. CRAIG.
10-pk

— page 223 —
In Reply
Refer to:
[STAMP: DECLASSIFIED]

U.S.S. GRAMPUS

Narrative of events in connection with the landing of Coast
Watchers on VELLA LAVELLA and CHOISEUL Islands.

1. On October 6, 1942, the four coast watchers, Sub.
Lieuts. WADDELL, JOSSELYN, KERRIGAN and Sergeant SETON, came
aboard. During the evening approximately 4000 pounds of equip-
ment were loaded in the after torpedo room. Four of the stan-
dard Navy 7 men inflatable rubber boats were procured, inspect-
ed and loaded.

2. At 0500, October 13, 1942, this vessel submerged
off the coast of VELLA LAVELLA and commenced a periscope recon-
naissance of the shore in the vicinity of MUNDIMUNDI. During
the day, positions were fixed as accurately as the incomplete
and inaccurate chart admitted, and soundings were taken. The
information obtained is continued in a separate part of this
report. During this period approach was made to within approx-
imately 2 miles of the beach and several photographs taken.
Every effort was made to identify the mouths of rivers shown on
the chart. Both of the watchers to be landed were given an
opportunity to take a look at the coast line when the nearest
point of approach was made.

3. The reconnaissance was completed at 1600 and course
set to seaward to clear the island before surfacing. At 1500
a Japanese Destroyer was seen approaching the island to the
northward. An approach was made to the island which closed
to within a short distance of shore near MATULU Island on the
northwest coast of VELLA LAVELLA. Due to uncharted reefs in-
dicated on the chart we were unable to close this destroyer
closer than 4000 yards. No torpedoes were fired. The Command-
ing Officer was unable to ascertain what the mission of this
vessel was. At 1850 the destroyer departed. By sound bearings
he seemed to be headed for FAISI.

4. While proceeding to seaward to complete our battery
charge the Commanding Officer and the coast watchers held a
conference and the decision was reached to proceed with the
landing as scheduled. It was felt that if the Japanese had in-
formation of the landing the destroyer would not have gone off
but would have lain in wait. If it was landing coast watchers
also they were well clear of our chosen spot and the sooner
our watchers got ashore the better their chances of success.

5. At 0129 this vessel was one mile off shore just to
the northward of MUNDIMUNDI and abreast the mouth of one of the
rivers. Loading of the boats was started. Approximately half

-1- ENCLOSURE (A)

— page 224 —
U.S.S. GRAMPUS
DECLASSIFIED
of the equipment was placed in each boat and the boats tied
together one behind the other. Sub. Lieut. KEENAH embarked in
one of these boats. Sub. Lieut. JOSSELYN embarked in the
collapsible boat which was part of the equipment furnished. A
line was made fast around his waist and to the bow of the lead-
ing rubber boat. At 0142 the coast watchers shoved off and
this vessel headed out to sea. Due to current setting this
vessel on the beach the coast watchers only had a 3/4 mile row
to shore. They had covered most of this distance before they
were lost to sight.

6. The following morning this vessel dove and patrol-
led across the EAST-GUADALCANAL traffic lane enroute to the
spot selected for the landing of the coast watchers on CHOISEUL
Island. Approach was made submerged to just over the 100
fathom curve. At 1744 course was set to seaward. At 1915 sur-
faced for a battery charge prior to starting in to land the watchers.
At 2315 just as this vessel crossed the 100 fathom curve instructions were received to
proceed immediately to a patrol station off VISUVISU Point to
reach there by dawn and to delay landing coast watchers if
necessary. Another hour would have seen the watchers landed
and our mission accomplished. The landing was delayed and
this vessel proceeded to station ordered on three engines.

7. At 2145, October 18, 1942, orders were received
to proceed and land coast watchers, returning to patrol station
as soon as practicable. Increased speed and proceeded to sta-
tion northeast of VELLA LAVELLA Island to patrol for half a
day prior to inspecting the landing sit submerged.

8. During the morning of October 19, 1942, submerged
patrol was conducted along the enemy traffic lanes and during
the afternoon a periscope inspection of the landing site was
made. The reconnaissance of October 14 and this inspection
were not very satisfactory as submerged approach closer than
10 miles to shore was not feasible due to shallow water.

9. Upon completion of battery charge the approach to
shore was started. High speed (14 knots) was used from
crossing of the 100 fathom curve to within 2 miles of the beach.
At 0034, October 19, a position 1/2 mile from the beach was
reached and loading of the boats started. At 0051 Sub. Lieut.
WADDELL and Sergeant SETON left the ship. Loading was ident-
ical to that utilized before. Sergeant SETON manned the canoe
and Sub. Lieut. WADDELL manned the second rubber boat. When
last seen they had covered over half the distance to shore but

- 2 - ENCLOSURE (A)

— page 225 —
U.S.S. GRAMPUS

DECLASSIFIED
a reverse current inshore seemed to be setting them to the
southward of the chosen landing place.

10. For the landing at VILLA LAVELLA the weather was
ideal. Flat calm, low oily swell, good visibility with light
haze. No moon. For the landing at CHOISEUL the same weather
conditions held. The moon was quiet bright and the
chances of being seen from the beach much greater.

11. In case of future operations of this sort it is
recommended that not more than 2 watchers be sent out in one
submarine. The crowding incident to messing and berthing 4
passengers in addition to the regular officers imposes a con-
siderable strain on both facilities and personnel. The pre-
sence of so much equipment in the after torpedo room (the only
available stowage space) seriously hampered reloading and
the routine care of torpedoes in this room.

- 3 - ENCLOSURE (A)

— page 226 —
[STAMP: DECLASSIFIED]
[HANDWRITTEN: Original 88
3/21/58 CTP - 72
0713]

U. S. SUBMARINE ACTION REPORT

U. S. S. GRAMPUS (SS207)
Time 1853-40

Date December 19, 1942
Location:
Latitude 05°- 49' (S)
Longitude 153°- 08' (E)

INSTRUCTIONS
(a) ATTACK FIRST—THEN COLLECT DATA FOR THIS REPORT.
(b) DO NOT “GUN DECK” THIS REPORT—IF DATA CANNOT BE ESTIMATED WITH REASON-
ABLE ACCURACY ENTER A DASH IN SPACE FOR WHICH NO DATA IS AVAILABLE.
(c) DRAW A CIRCLE AROUND THE APPROPRIATE ENTRY IN THIS REPORT WHEREVER
SUITABLE.

WEATHER CONDITIONS Clear, visibility excellent.
SEA CONDITIONS Slick oily calm.
SOUND CONDITIONS (if applicable) Excellent.
TYPE OF OPERATIONS War Patrol.

SPECIFIC OBJECTIVE Any type enemy vessel.

FORCES ENGAGED: OWN One submarine - U.S.S. GRAMPUS (SS207).

(Name and Type) ENEMY One 6,000 ton Japanese freighter similar to the
ASAKA MARU escorted by two ASASHIO class destroyers, one leading and
one trailing.

TYPE OF ATTACK (Own/[CROSSED OUT: Enemy]—scratch one) Submerged torpedo.

BRIEF DESCRIPTION Sighted targets at 1815, range 13,400 yards, on zig-zag
courses. Commenced submerged approach. At 1853 fired
three torpedoes at freighter from bow tubes with 100° P. track angle and
max. gyro angle 14½° L. Torpedoes set to run at six feet. Immediately
afterwards shifted to trailing destroyer and fired three torpedoes from
bow tubes with 90° P. track angle and max. gyro angle 14° right. Torped-
oes set to run at zero feet. All torpedoes ran hot,
straight, and normal.

WEAPONS EMPLOYED:
Own Mark XIV - Mod. I torpedoes (6).
Enemy Thirteen (13) depth charges.

AMMUNITION EXPENDED Six Mark XIV - Mod. I torpedoes.

EVASIVE TACTICS EMPLOYED:
Own Submerged to 200 ft. Silent running at slow speed.
Enemy None noted.

ENCLOSURE D

163—USS Fulton—5-18-42—1M.

— page 227 —
FOR TORPEDO ATTACK (Own):
Firing range [HANDWRITTEN: 2400 yard torpedo run]
Keel depth [HANDWRITTEN: 62 feet]
[HANDWRITTEN: Straight]/curved shot(s) [HANDWRITTEN: 20 angular]
Type spread

Attack: (unopposed) [HANDWRITTEN: X]
(check) (opposed by air screen/close screen)

Detected: (prior to firing)
(check) (after firing [HANDWRITTEN: X])
(undetected) [HANDWRITTEN: One hit heard on freighter, screen stopped immediately,
and picked up on sound gear. Two hits heard
very close together two minutes after firing first torpedo at destroyer.
His screws were not heard again. Destroyer
depth charging was done by leading
destroyer and only one set of screws heard. Sound heard definite noises
of ships sinking on two separate bearings. Considerable wreckage noted
in this vicinity upon observation following day.]

TYPE ATTACK
(check)
Periscope
Periscope and TDC [HANDWRITTEN: X]
Sound
Sound and TDC

RESULTS: (Certain) [HANDWRITTEN: target heard breaking up on sound gear. Two hits heard
very close together two minutes after firing first torpedo at destroyer.
His screws were not heard again. Destroyer
depth charging was done by leading
destroyer and only one set of screws heard. Sound heard definite noises
of ships sinking on two separate bearings. Considerable wreckage noted
in this vicinity upon observation following day.]
(Estimated) [HANDWRITTEN: Both targets sunk.]

DAMAGE TO OWN SHIP [HANDWRITTEN: JK sound gear put out of commission temporarily, #3
engine exhaust valve jammed shut but was opened finally after considerable
difficulty, and light bulbs broken by a well executed severe depth
charge attack.]

BRIEF REMARKS [HANDWRITTEN: Screen composed of one DD ahead and one DD astern
patrolling station and using automatic pinging on 17 Kcs. with eleven
second interval. Radical simultaneous zigs were used.]

[SIGNATURE: J.R. Craig]
[HANDWRITTEN: J.R. CRAIG,]
Lieutenant Commander, U.S. Navy.
Commanding.

— page 228 —
CONFIDENTIAL
U. S. SUBMARINE ACTION REPORT
U. S. S. GRAMPUS (SS207)
Time 0245
Date December 21, 1943 [HANDWRITTEN: 1943]
Location:
Latitude 05° 10' 20" (S)
Longitude 153° 43' 30" (E)

INSTRUCTIONS
(a) ATTACK FIRST—THEN COLLECT DATA FOR THIS REPORT.
(b) WHEN DATA CANNOT BE ESTIMATED WITH REASON-ABLE ACCURACY ENTER A DASH IN SPACE FOR WHICH NO DATA IS AVAILABLE.
(c) DRAW A CIRCLE AROUND THE APPROPRIATE ENTRY IN THIS REPORT WHEREVER SUITABLE.

WEATHER CONDITIONS Clear, moonlight.
SEA CONDITIONS Calm, light swells.
SOUND CONDITIONS (if applicable) Good.
TYPE OF OPERATIONS War Patrol.

SPECIFIC OBJECTIVE Any type enemy vessel.

FORCES ENGAGED: OWN One submarine - U.S.S. GRAMPUS (SS207).

(Name and Type) ENEMY One 6000 ton Japanese freighter escorted by one submarine chaser.
TYPE OF ATTACK (Own [CROSSED OUT: scratch one]) Night surface torpedo.

BRIEF DESCRIPTION Fired two torpedoes at freighter after miss-fire on first attempt. Target sighted us and turned away. Change in target course did not reach TDC for firing. Both torpedoes went out with small gyro angles that caused them to pass astern of target on his new course.

WEAPONS EMPLOYED:
Own Mark XIV - Mod. I torpedoes (2).
Enemy Five depth charges.
AMMUNITION EXPENDED Two Mark XIV - Mod. I torpedoes.

EVASIVE TACTICS EMPLOYED:
Own Submerged.
Enemy Turned away.

ENCLOSURE D
163—USS Fulton—5-18-42—1M.
[HANDWRITTEN: 2]

— page 229 —
FOR TORPEDO ATTACK (Own):

Firing range 2,000 yards
Keel depth Surface.
Straight/curved shot(s) [HANDWRITTEN: Straight]
Type spread 2° angular.

Attack: (unopposed
(check) (opposed by air screen/close screen [HANDWRITTEN: X]

Detected: (prior to firing [HANDWRITTEN: X]
(check) (after firing
(undetected

RESULTS: (Certain) Missed astern of target.

(Estimated)

DAMAGE TO OWN SHIP None.

BRIEF REMARKS This was the first night surface attack made by present
Commanding Officer. First tube attempted to be fired failed to fire
because the pivot pew of the hand firing key dropped out and jammed the
the solenoid. Because of the difficulty in communication between
bridge and TDC target's change of course was not applied before firing.

TYPE ATTACK
(check)
Periscope
Periscope and TDC
Sound
Sound and TDC
Surface and TDC [HANDWRITTEN: X]

[SIGNATURE: J.R. Craig]
J.R. CRAIG,
Lieutenant Commander, U.S. Navy.
Commanding.

— page 230 —
CONFIDENTIAL
U. S. SUBMARINE ACTION REPORT
U. S. S. GRAMPUS (SS207) Date January 9, 1943.
Time 1406 Location: Latitude 04° 57' 32" (S)
Longitude 152° 31' 22" (E)
INSTRUCTIONS
(a) ATTACK FIRST—THEN COLLECT DATA FOR THIS REPORT.
(b) DO NOT “GUN DECK” THIS REPORT—IF DATA CANNOT BE ESTIMATED WITH REASON-
ABLE ACCURACY ENTER A DASH IN SPACE FOR WHICH NO DATA IS AVAILABLE.
(c) DRAW A CIRCLE AROUND THE APPROPRIATE ENTRY IN THIS REPORT WHEREVER
SUITABLE.

WEATHER CONDITIONS Clear, visibility good.
SEA CONDITIONS Choppy with moderate wind.
SOUND CONDITIONS (if applicable) Excellent.
TYPE OF OPERATIONS War Patrol.

SPECIFIC OBJECTIVE Any type enemy vessel.

FORCES ENGAGED: OWN One submarine - U.S.S. GRAMPUS (SS207).

(Name and Type) ENEMY One Japanese submarine (New Type).

TYPE OF ATTACK (Own/[HANDWRITTEN: Enemy]—scratch one) Submerged torpedo.

BRIEF DESCRIPTION Fired three torpedoes at target with 3100 yards,
120° starboard track, and maximum gyro angle of 7½° right. Depth
setting 6 feet.
WEAPONS EMPLOYED:
Own Mark XIV - Mod. I torpedoes (3).
Enemy Three depth bombs from air screen.
AMMUNITION EXPENDED Three Mark XIV - Mod. I torpedoes.

EVASIVE TACTICS EMPLOYED:
Own Submerged to 150 feet.
Enemy None noted, continued zig zagging.

ENCLOSURE D
163—USS Fulton—5-18-42—1M.
3

— page 231 —
FOR TORPEDO ATTACK (Own):
Firing range [HANDWRITTEN: 3100]
Keel depth [HANDWRITTEN: 62 feet.]
[CROSSED OUT: Number of curved shot(s)]
Type spread [HANDWRITTEN: 2° angular]

Attack [CROSSED OUT]
(check) (opposed by air screen/[CROSSED OUT])
Detected: (prior to firing
(check) (after firing [HANDWRITTEN: X]
(undetected

TYPE ATTACK
(check)
Periscope
Periscope and TDC [HANDWRITTEN: X]
Sound
Sound and TDC

RESULTS: (Certain) [HANDWRITTEN: All believed to have missed ahead.]

(Estimated)

DAMAGE TO OWN SHIP [HANDWRITTEN: None.]

BRIEF REMARKS [HANDWRITTEN: Misses attributed to the long torpedo run and the
limited number of observations taken in order to close the target
track at high submerged speed.]

[SIGNATURE: J.R. Craig]
[HANDWRITTEN: J.R. CRAIG,]
[HANDWRITTEN: Lieutenant Commander, U.S. Navy.]
[HANDWRITTEN: Commanding.]

— page 232 —
CONFIDENTIAL
U. S. SUBMARINE ACTION REPORT
U. S. S. [HANDWRITTEN: GRAMPUS] ([HANDWRITTEN: SS207]) Date [HANDWRITTEN: January 10,] [HANDWRITTEN: 1943.]
Time [HANDWRITTEN: 1532] Location: Latitude [HANDWRITTEN: 05° 01' 10"] ([HANDWRITTEN: S])
Longitude [HANDWRITTEN: 152° 28' 00"] ([HANDWRITTEN: E])

INSTRUCTIONS
(a) ATTACK FIRST—THEN COLLECT DATA FOR THIS REPORT.
(b) DO NOT “GUN DECK” THIS REPORT—IF DATA CANNOT BE ESTIMATED WITH REASON-
ABLE ACCURACY ENTER A DASH IN SPACE FOR WHICH NO DATA IS AVAILABLE.
(c) DRAW A CIRCLE AROUND THE APPROPRIATE ENTRY IN THIS REPORT WHEREVER
SUITABLE.

WEATHER CONDITIONS [HANDWRITTEN: Clear, visibility excellent.]
SEA CONDITIONS [HANDWRITTEN: Choppy, moderate wind.]
SOUND CONDITIONS (if applicable) [HANDWRITTEN: Good.]
TYPE OF OPERATIONS [HANDWRITTEN: War Patrol.]

SPECIFIC OBJECTIVE [HANDWRITTEN: Any type enemy vessel.]

FORCES ENGAGED: OWN [HANDWRITTEN: One submarine - U.S.S. GRAMPUS (SS207)]

(Name and Type) ENEMY [HANDWRITTEN: Three Japanese transports in column escorted by]
[HANDWRITTEN: six destroyers and air patrol.]

TYPE OF ATTACK (Own/Enemy—scratch one) [HANDWRITTEN: Submerged torpedo.]

BRIEF DESCRIPTION [HANDWRITTEN: Fired three torpedoes from bow tubes, high parallax shot]
[HANDWRITTEN: at second transport with 1200 yard torpedo run, 800 port]
[HANDWRITTEN: track and maximum gyro angle of 85° left. Immediately afterwards fired]
[HANDWRITTEN: three torpedoes from stern tubes at leading transport which had turned]
[HANDWRITTEN: across our stern presenting a 90° right]
[HANDWRITTEN: track with a torpedo run of 1700]
[HANDWRITTEN: yards and maximum gyro angle of 31° left.]

WEAPONS EMPLOYED:
Own [HANDWRITTEN: Mark XIV - Mod. I torpedoes (6).]
Enemy [HANDWRITTEN: Thirty-four depth charges.]

AMMUNITION EXPENDED [HANDWRITTEN: Six Mark XIV - Mod. I torpedoes.]

EVASIVE TACTICS EMPLOYED:
Own [HANDWRITTEN: Deep submergence, silent running at slow speed.]
Enemy [HANDWRITTEN: Turned toward.]

163—USS Fulton—5-18-42—1M.
ENCLOSURE D
[HANDWRITTEN: 4]

— page 234 —
CONFIDENTIAL
U. S. SUBMARINE ACTION REPORT
U. S. S. [HANDWRITTEN: GRAMPUS] ([HANDWRITTEN: SS207]) Date [HANDWRITTEN: January 13,] [HANDWRITTEN: 1943.]
Time [HANDWRITTEN: 0229] Location: Latitude [HANDWRITTEN: 05° 12' 00"] ([HANDWRITTEN: S])
Longitude [HANDWRITTEN: 152° 40' 11"] ([HANDWRITTEN: E])

INSTRUCTIONS
(a) ATTACK FIRST—THEN COLLECT DATA FOR THIS REPORT.
(b) DO NOT “GUN DECK” THIS REPORT—IF DATA CANNOT BE ESTIMATED WITH REASON-
ABLE ACCURACY ENTER A DASH IN SPACE FOR WHICH NO DATA IS AVAILABLE.
(c) DRAW A CIRCLE AROUND THE APPROPRIATE ENTRY IN THIS REPORT WHEREVER
SUITABLE.

WEATHER CONDITIONS [HANDWRITTEN: Overcast, dark of moon.]
SEA CONDITIONS [HANDWRITTEN: Choppy, moderate wind.]
SOUND CONDITIONS (if applicable) [HANDWRITTEN: Good.]
TYPE OF OPERATIONS [HANDWRITTEN: War Patrol.]

SPECIFIC OBJECTIVE [HANDWRITTEN: Any type enemy vessel.]

FORCES ENGAGED: OWN [HANDWRITTEN: One submarine - U.S.S. GRAMPUS (SS207).]

(Name and Type) ENEMY [HANDWRITTEN: Japanese PC boat mistaken in dark for submarine.]

TYPE OF ATTACK (Own/[CROSSED OUT: Enemy]—scratch one) [HANDWRITTEN: Night surface torpedo.]

BRIEF DESCRIPTION [HANDWRITTEN: Sighted target on port bow on opposite and diverging]
[HANDWRITTEN: courses at range of 1500 yards, swung with full left rudder and fired]
[HANDWRITTEN: one torpedo from bow tubes using 13° lead angle.]
WEAPONS EMPLOYED:
Own [HANDWRITTEN: Mark XIV - Mod. I torpedoes (1).]
Enemy [HANDWRITTEN: One depth charge.]
AMMUNITION EXPENDED [HANDWRITTEN: One Mark XIV - Mod. I torpedo.]

EVASIVE TACTICS EMPLOYED:
Own [HANDWRITTEN: Submerged to 200 feet, silent running at slow speed.]
Enemy [HANDWRITTEN: Turned toward.]

163—USS Fulton—5-18-42—1M. ENCLOSURE D

— page 235 —
FOR TORPEDO ATTACK (Own):

Firing range 1500 yards.
Keel depth Surface.
Straight/run/depth (s) None.
Type spread None.

Attack: (unopposed [HANDWRITTEN: X])
(check) (opposed by air screen/close screen
Detected: (prior to firing [HANDWRITTEN: X])
(check) (after firing
(undetected

TYPE ATTACK
(check)
Periscope
Periscope and TDC
Sound
Sound and TDC
Surface [HANDWRITTEN: X]

RESULTS: (Certain) Torpedo missed astern of target.

(Estimated)

DAMAGE TO OWN SHIP None.

BRIEF REMARKS O.O.D. sighted what appeared to be a Japanese submarine
and fired only remaining torpedo forward by seaman's eye as soon as
torpedo was ready for firing. Lead angle was underestimated and
coupled with targets maneuver torpedo missed astern.

[SIGNATURE: J.R. Craig]
J.R. CRAIG,
Lieutenant Commander, U.S. Navy.
Commanding.

— page 236 —
[HANDWRITTEN: From Box # 174 (1-40 S.W.) GW] [STAMP: DECLASSIFIED] [HANDWRITTEN: 22 OCT 1982]

FE12-15 (72)/L11-1/Pk                               TASK FORCE SEVENTY-TWO,
                                                   Care of Fleet Post Office,
SERIAL 0074                                        San Francisco, California.
DECLASSIFIED
CONFIDENTIAL                                       March 29, 1943.
[STAMP: DECLASSIFIED]
[STAMP: AUTHORITY NND 735001]
[STAMP: BY NARA, DATE [HANDWRITTEN: 3/20/97]]

From : The Commander Task Force SEVENTY-TWO.
To : The Commander in Chief, UNITED STATES FLEET.
Via : The Commander, SEVENTH FLEET.

Subject: Reporting Loss of U.S.S. GRAMPUS (SS207).

Reference: (a) Com 7th Flt despatch 220239 of March, 1943.

1. Following is a resume of the known facts pertain-
ing to the loss of the U.S.S. GRAMPUS:

February 11, 1943. GRAMPUS left BRISBANE on her Sixth War
                     Patrol.

February 14, 1943. GRAMPUS was ordered to hunt for traffic in
                     the area west of SHORTLAND ISLAND and south
                     of latitude 6°-30' S.

February 16, 1943. GRAMPUS was assigned the entire BUKA -
                     RABAUL Sea area.

February 18, 1943. GRAMPUS was directed to patrol the northern
                     part of that area in order to permit TRITON
                     to take over the southern part. (This
                     message was first transmitted at 0000 L,
                     February 19, 1943.)

February 19, 1943. Received intelligence of one of our submar-
                     ines having been sighted by the enemy at
                     0300 L, February 18, 1943, in position Lat-
                     itude 5°-35' S., Longitude 152°-15' E., and
                     again at 0700 L, February 19, 1943, in posi-
                     tion Latitude 4°-55' S., Longitude 152°-30'
                     E.; and of a torpedo attack, effectiveness
                     unknown, having been delivered by a submar-
                     ine at 1850 L, February 18, 1943, in posi-
                     tion 4°-55' S., Longitude 152°-28' E.
                     These positions were in GRAMPUS's area.

[STAMP: CLASSIFICATION REDUCED TO]
[STAMP: CONFIDENTIAL]
[STAMP: BY AUTHORITY OF]
[STAMP: OPNAV INT. INST. 5510.1]
[STAMP: DATED 15 JUN 53]
[STAMP: By [SIGNATURE: SCA] Date [HANDWRITTEN: 3-20-57]]

February 20, 1943. GRAMPUS was ordered, by message transmitted
                     at about 0100 L, February 20, 1943, to
                     patrol north of Latitude 4°-30' S., until
                     dawn February 21, 1943, and then to patrol
                     east of BUKA and BOUGAINVILLE.

[STAMP: CONFIDENTIAL]
                                                   - 1 -

— page 238 —
FE12-15(72)/L11-1/Pk
Serial 0074
CONFIDENTIAL
CONFIDENTIAL
Subject: Reporting Loss of U.S.S. GRAMPUS (SS207).

— page 239 —
FE12-15(72)/L11-1/Pk
Serial 0074

[CROSSED OUT: SECRET]
CONFIDENTIAL
Subject: Reporting Loss of U.S.S. GRAMPUS (SS207).

— page 240 —
[HANDWRITTEN: 022f3.]

[STAMP: UNITED STATES FLEET
COMMANDER SEVENTH FLEET]

Lll

Serial 00288
ULTRA SECRET

FIRST ENDORSEMENT to
CTF-72 ultra secret ltr
serial 0074 of 3/29/43.

[STAMP: RECEIVED
APR 13 A.M.
CINCPAC]
APR 5 1943

From: The Commander SEVENTH FLEET.
To: The Commander in Chief, United States Fleet.

Subject: Reporting Loss of U.S.S. GRAMPUS (SS207).

1. Forwarded. From information available it is appar-
ent that the GRAMPUS was sunk by enemy action in the Solomons -
New Britain area, probably on February 19, 1943, in Latitude
5-04S Longitude 152-18E.

2. The loss of the GRAMPUS is keenly felt within this
command, not only because of the passing of another valuable
vessel, but because of the loss of the gallant officers and men
who served therein. While information of damage inflicted upon
the enemy during this patrol is lacking, the GRAMPUS on her two
previous patrols, while under the command of Lieutenant Commander
J. R. Craig, U. S. Navy, proved herself by sinking 24,000 tons
of enemy shipping and damaging, or perhaps sinking, three enemy
destroyers. This record of achievement is indicative of the
resolute spirit exhibited by the officers and men of the sub-
marine service.

[HANDWRITTEN: CinCPac BOX #1741-40DRS #2086 FILE L11-1(L) JACKET]

A. S. CARPENDER

Copy to:
Com 1st Flt.
Com 3rd Flt.
Comsubs 1st Flt.
Comsubs 7th Flt. (TF71)

[STAMP: CONFIDENTIAL]

[HANDWRITTEN: # - H.J.]

— page 241 —
[HANDWRITTEN: TF 72,007#, 29 Mar 43]
[STAMP: RECEIVED
8 JAN 1943
Com Task For 42]

COMMANDER SUBMARINE FORCE
UNITED STATES PACIFIC FLEET

FF12-10/A16-3
Serial [HANDWRITTEN: 01375]

Care of Fleet Post Office,
San Francisco, California,
[UNCLEAR: 5 DEC 1942]

037

CONFIDENTIAL

From: The Commander Submarine Force, Pacific Fleet.
To : The Commander Submarines, Southwest Pacific Force.

Subject: Flotsam in Solomon Islands.

1. The following is quoted from a memorandum
received from the Pacific Fleet Intelligence Officer:

"It was reported from the Solomon Islands on 4 November,
that many fragments of typewritten letters, several of
which were marked, 'U.S.S. GRAMPUS' and also pieces of
old clothes, were washed ashore on 26 October on
Kalambangra, which lies north-west of New Guinea"

R. H. ENGLISH.

Copy to:
Comtaskfor 42

— page 242 —
END OF REEL
JOB NO. [HANDWRITTEN: AR-88-81]
[HANDWRITTEN: E-108]

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

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