U.S.S. GUARDFISH (SS-217) — war patrol report SS-217_GUARDFISH_Part3.pdf

— page 1 —
CONFIDENTIAL - USS GUARDFISH TWELFTH WAR PATROL REPORT

(C) WEATHER

     Fog in varying degrees was encountered during all
or part of seventeen of the twenty-seven days spent in
areas ONE and TWO. At least 50% of the total time in
area ONE (eleven days) was spent in dense fog. Fog
periods varied from a few hours to forty-eight hours
without lifting. Visibility inshore was usually poor
on "Clear" days. Skies were overcast 90% of the time in
the area. Seas were usually flat calm close to the
coast of both HONSHU and HOKKIADO. Offshore seas aver-
aged force 2, usually from northeast. Air temperatures
averaged from 43°F off ERIMO SAKI to 53°F off TODO SAKI.
Surface water temperatures were usually 4 to 5 degrees
lower than air temperature. Navigation or piloting
without radar would have been practically impossible.

(D) TIDAL INFORMATION

     Currents encountered conformed closely to data
contained in Hydrographic Office publications. A south-
erly set of about 0.8 knots was normal off the coast of
HONSHU north of latitude 39°-00'N. South of this lat-
itude a set to the southwest was experienced when close
to the coast.

(E) NAVIGATIONAL AIDS

     No navigational lights were observed to be burning.
Identification of peaks for radar navigation was dif-
ficult when offshore, but reasonably accurate fixes by
radar were obtained as the coast was closed. KOME
KOBE SAKI and SANGAN SHIMA served as easily recognized
reference points when piloting by periscope close in-
shore along the coast of HONSHU. KINKASAN, ERIMO
ERIYA SAKI and ESAN SAKI were unmistakable by radar.

(F) SHIP CONTACTS

     TIME        LATITUDE
NO.  DATE        LONGITUDE   TYPE           INITIAL
                                            RANGE

1    0759(K)     37°-03'N     Large          6,000 Yds.
     5-19-45     141°-20'E    Sampan

2    0304(K)     37°-20'N     Unidentified   7,700 Yds.
     5-20-45     141°-51'E

3    1005(K)     39°-15'N     Landing        8,000 Yds.
     5-28-45     142°-04'E    Craft

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CONFIDENTIAL - USS GUARDFISH THELFTH WAR PATROL REPORT

NO. | TIME    | DATE    | LATITUDE | LONGITUDE | TYPE         | INITIAL RANGE
----||||||
4   | 1410(K) | 5-28-45 | 39°-13'N | 142°-01'E | P.C.         | 8,000 Yds.
    |         |         |          |           | Boat         |
5&6 | 1420(K) | 5-29-45 | 39°-11'N | 141°-57'E | Two          | 6,000 Yds.
    |         |         |          |           | Luggers      |
7   | 1501(K) | 5-30-45 | 39°-05'N | 141°-57'E | Unidentified | -
8   | 1155(K) | 6-9-45  | 39°-18'N | 142°-01'E | P.C.         | 7,000 Yds.
    |         |         |          |           | Boat         |
9   | 1255(K) | 6-9-45  | 39°-22'N | 142°-05'E | P.C.         | 8,000 Yds.
    |         |         |          |           | Boat         |
10  | 0734(K) | 6-16-45 | 38°-23'N | 145°-00'E | Trawler      | 20,000 Yds.

NO. | COURSE  | SPEED   | HOW       | REMARKS
    |         |         | CONTACTED |
----||||
1   | Various | Various | P         | On picket duty - Probably
    |         |         |           | sound equipped.
2   | 150(T)  | 16 Kts. | R         | Probably small Patrol Craft
    |         |         |           | Lost contact at 8,500 yards
    |         |         |           | Patrolling along 100
    |         |         |           | fathom curve.
3   | 087(T)  | 8 Kts.  | P & S     | Echo-ranging - entered
    |         |         |           | KAMAISHI KO.
4   | 000(T)  | 6 Kts.  | P         | Hugging coast - headed
    |         |         |           | north from TONI WAN.
5&6 | -       | -       | P         | Heard echo-ranging only.
    |         |         |           | Probably patrol boat off
    |         |         |           | KOBE SAKI.
7   | 045(T)  | 8 Kts.  | P & S     | Searching north of
    |         |         |           | KAMAISHI KO assisted
    |         |         |           | aircraft.
8   | Various | Various | P & S     | Conducting search with
    |         |         |           | several planes
9   | Various | 5 Kts.  | P         | Apparently on Picket
    |         |         |           | Duty.
    |         |         |           | Sunk by gunfire.
10  | -       | -       | -         | -

P - Periscope
R - Radar
S - Sound

(G) AIRCRAFT CONTACTS
Enroute to the first area the entrance to TOKYO BAY
was approached to within twenty-five miles on the

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CONFIDENTIAL - USS GUARDFISH TWELFTH WAR PATROL REPORT

surface without contacting a single enemy plane. A
safeguard station 25 miles south of NOJIMA SAKI was
maintained during an air strike in the TOKYO area
on 17 May, 1945 without sighting enemy aircraft.

Enroute TOKYO BAY area to area ONE, TWO and THREE
only two planes were contacted, these two in company,
while running on the surface, approximately 50 miles
northeast of INUBO SAKI.

A total of eleven days were spent in area ONE.
only six aircraft contacts were made. Two of these
planes were in company about thirty miles south of
ERIMO SAKI and were contacted by radar. Three planes
were contacted by radar on the same day about fifty
miles northeast of TODO SAKI on a line between TODO
SAKI and ERIMO SAKI. One twin engine plane was sighted
while submerged south of URAKAWA light. The scarcity
of planes in area ONE was attributed to poor flying
weather and to the absence of shipping.

The only plane contacts in area TWO were in the
immediate vicinity of TODO SAKI. No contacts were
made during the first tour in the area 28-30 May.
From 8-11 June there was a marked increase in plane activity in the
vicinity of TODO SAKI during the period 8-11 June.
From one to six planes were in sight throughout the day
on 9 June conducting a search of the area just south
of TODO SAKI. In addition to this indeterminate number,
six other planes were contacted in a two day period.
One night flyer equipped with radar was encountered off
TODO SAKI, but he was an amateur compared to the boys
south of HONSHU.

(H) ATTACK DATA

GUN ATTACK REPORT

USS GUARDFISH GUN ATTACK NO. I PATROL NO. 12
Time 1440(K) Date 16 June, 1945 Lat. 38°-23'N Long.
145°-00'E

TARGET DATA - DAMAGE INFLICTED

Sunk: - One (1) two masted deisel trawler. Equipped with
radio and machine guns, and estimated at 100
tons. (Similar to photograph by USS LANGLEY
aircraft on page 28 of Cincpac-Cincpoa "RECOGNIZE
YOUR ENEMY" Bulletin 56-45 of 26 February, 1945)

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CONFIDENTIAL - USS GUARDFISH TWELFTH WAR PATROL REPORT
(H) GUN ATTACK REPORT (Continued)

Damaged Determined By: - Left trawler with entire
                               superstructure shot away, decks
                               awash and several 4" hits below
                               the waterline.

DETAILS OF ACTION

USED 1 4"/50 Cal. gun - expended 55 rounds of high
                               capicity ammunition for 18
                               hits. Average firing range -
                               2,400 yards.

2 40MM guns            - expended 86 rounds of armor
                               piercing and 86 rounds of
                               incendiary ammunition for 50%
                               hits. Average firing range -
                               1,900 yards.

3 50 Cal Machine - expended 100 rounds of ammun-
       guns            ition for 50% hits. Average
                               firing range 500 yards.

Opened fire with 4"/50 at 4,500 yards and obtained
hit on pilot house on fifth shot which eliminated all
opposition. Opened fire at 3,500 yards with two 40MM
guns and at 700 yards with two 50 Cal. machine guns.

4"/50 caliber fire was erratic due to failure of
the foot firing mechanism and the necessity of using
hand lanyard in the early stages. 40MM fire was in-
effective at ranges in excess of 2,500 yards due to
crudeness of sights. Several fires were started but
would not persist, and it was necessary to close to
300 yards and hole the target at the waterline before
it started settling.

The 4"/50 Cal. fire was controlled from the conning
tower using the TDC for a range keeper and radar and
periscope for spotting. Hitting gun range and deflec-
tion was sent to the gun after each shot rather than
spots.

(I) MINE CONTACTS

No mining or mine sweeping activity was observed.
One drifting horn type mine was exploded by rifle fire
at Lat. 39°-00'N; Long. 143°-47'E.

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CONFIDENTIAL - USS GUARDFISH TWELFTH WAR PATROL REPORT

(J) ANTI-SUBMARINE MEASURES ENCOUNTERED

No new anti-submarine measures were encountered.
A very thorough coordinated search by aircraft and PC
boats was observed south of TODO SAKI on 9 June, 1945.

(K) MAJOR DEFECTS AND DAMAGES

HULL AND MACHINERY

1. During post refit period a continuous fresh water
leak in the Auxiliary engine was found to be caused by
cracked water cores in three liners although this eng-
ine had just been overhauled. New liners were install-
ed to correct this casualty.

2. A leak in the inboard exhaust valve on #1 main
engine which developed during the 11th patrol of this
vessel was repaired by brazing during refit. On the
3rd day of this patrol the leak reappeared and it was
necessary to secure the engine until repairs could
be effected. The metal was found to be too thin to
withstand the heat of brazing and the leak was blocked
by jamming a piece of wood against the hole and wedg-
it into position. Permanent repairs will be effected
during refit by replacing the valve.

3. On June 12, 1945 while making investigation to de-
termine cause of a knock in #1 main engine it was found
that the piston pin bushing in #1 unit had worn to such
an extent that replacement of the entire unit was con-
sidered necessary to effect repairs. Knock had been
present since overhaul and was thought to be fuel knock
until gradual increase therein rendered such a solution
impossible.

4. On 17 June, 1945, on surfacing after trim dive #4
main engine developed a leak in fresh water system.
Inspection revealed a cracked liner in #9 unit. Eng-
ine had not been flooded and there was no apparent
reason for the casualty. It is assumed that the fail-
ure was in material. The liner assembly was renewed.

5. On 18 June, 1945 the flexible coupling on the
discharge side of the lube oil pump in #4 main engine
developed a leak requiring replacement of the coupling.
Lube oil pressures were normal and it is believed the
casualty occurred due to a failure of material. In-
stalled spare coupling which is not on the allowance

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CONFIDENTIAL - USS GUARDFISH TWELFTH WAR PATROL REPORT
list but happened to be on board. It is recommended
that a spare be added to the allowance list.

6. The Pit Log was a source of much trouble on this
patrol as it has been on other patrols. Replacement
of the bellows was found to be necessary after many
attempts to adjust and set the pit log, although in-
spection did not reveal anything wrong with the bellows
then installed. Difficulties with the water pump in-
dicates the desireability of replacement.

7. The Bow Planes in the fully rigged in position
have been tilting just enough to cause the gears not
to mesh for power tilting after the planes are rigged
out, so that it is necessary to tilt the planes by
hand power until the gears on the tilting motor will
mesh. It is believed that the cushion has worn slight-
ly and that the seas are causing the planes to tilt
in the rigged in position. Repairs will be effected
during refit.

8. The Overspeed governors on all engines tripped out
the engines at various times and when the engines were
not overspeeding. This occurred only when answering a
flank speed bell on a cold engine and only when the in-
jection was 42° or below. It is believed that the low
temperature of the oil was the cause of this failure
as it continued to occur when spare governors were in-
stalled.

9. On June 22, 1945 while on charge No. 4 main engine
was secured because of a sudden rise in fresh water
temperature and loss of pressure. On examination it was
found that the cylinder liner in #13 unit was cracked.
Repairs were effected by installing spare liner. This
is the second liner in this engine to crack. Total
hours on this engine 167.1 since overhaul. There was
no indication of trouble in either case until the
sudden drop in water pressure and corresponding rise in
temperature at which time, in each case, the engine was
secured. It is believed that ships personnel were not
at fault in operation and maintenance of same.

10. On June 23, 1945, while making routine trim dive
a leak in the salt water system in forward engine room
through the center of a blank flange closing off sea
suction to #1 Auxiliary engine developed. Leak was
caused by salt water deterioration of the metal. Tem-
porary repairs were effected and a new flange will be

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CONFIDENTIAL - USS GUARDFISH TWELFTH WAR PATROL REPORT
installed during refit.

11. On June 23, 1945 No. 4 main engine was started
put on propulsion building up to 80% load when a leak
developed in the fresh water system unit #9. Examin-
ation revealed a cracked liner, the same casualty as
the two previous ones on this engine. Operating con-
ditions were normal at the time of the casualty and
apparent cause therefore was discerned. Repairs were
effected by ships force and a careful check on this
engine will be maintained in an effort to ascertain the
cause of this recurring casualty.

ORDNANCE AND GUNNERY

TORPEDOES

On dead cell in torpedo #56589 and one dead cell
in torpedo #55554 were jumped.

4"/50 Cal.Gun

The foot firing mechanism of the 4"/50 Cal. gun
failed to function properly during gun attack #1 on
16 June, 1945. After several rounds were fired using
the hand lanyard the foot firing mechanism was found
to function properly. This casualty was attributed
to failure to work out the foot firing mechanism as a
matter of routine upon greasing the gun. Steps have
been taken to prevent re-occurrence.

(L) RADIO

No comment.

(M) RADAR

The SD-3 transmitter was found to be defective dur-
ing the Eleventh patrol and could not be repaired during
refit. This transmitter was replaced by an SD-4 unit
which proved to be much more efficient than the SD-3
formerly installed. Consistently greater ranges were
obtained on aircraft and land masses.

The performance of the SJ radar was excellent
throughout the patrol. Operating time lost for re-
pairs and adjustments was very low - the primary
difficulty being in the range unit. Two 5U4G rectifier
tubes and a screen-dropping resistor in the pulse
selector tube of the range unit were renewed.

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CONFIDENTIAL - USS GUARDFISH TWELFTH WAR PATROL REPORT

Mechanical difficulties were experienced in the
power training assembly which necessitated hand training
on several occasions. This assembly will be thor-
oughly overhauled during refit.

(N) SONAR GEAR AND SOUND CONDITIONS

While enroute to the area an excessively loud noise
level on the JP was traced to a loose head. One bolt
was found to be missing and the nut on another was in-
tight without a lock nut or lock washer being in-
stalled.

The performance of the JP was hindered throughout
the patrol by noise generated in the training gear and
by a 60 cycle click from the pit log which could not
be eliminated.

Sound conditions were good.

(O) DENSITY LAYERS

Sharp negative gradients of from 4 to 10 degrees
could usually be depended upon. Bathythermograph
cards were submitted by separate correspondence. The
following typical examples are listed.

| GCT | LATITUDE | | | | | |
|---|---|---|---|---|---|---|
| TIME | LONGITUDE | 65' | 100' | 150' | 200' | 250' |
| & DATE | | | | | | |
| 1925-May 23 | 41°-59'N | 35° | 34° | 34° | | |
| | 143°-43'E | | | | | |
| 2106-May 26 | 41°-08'N | 41° | 39° | 38° | 37° | 40° |
| | 141°-59'E | | | | | |
| 1801-May 27 | 39°-15'N | 44° | 42° | | | |
| | 142°-30'E | | | | | |
| 1801-May 28 | 39°-15'N | 45° | 44° | 37° | 37° | |
| | 142°-17'E | | | | | |
| 1825-May 30 | 39°-22'N | 41° | | | | |
| | 143°-06'E | | | | | |
| 0300-June 1 | 40°-30'N | 38° | 36° | | | |
| | 142°-30'E | | | | | |
| 1808-June 1 | 40°-55'N | 49° | 50° | 46° | | |
| | 143°-00'E | | | | | |
| 1818-June 2 | 42°-02'N | 36° | 35° | | | |
| | 143°-53'E | | | | | |
| 0400-June 4 | 41°-44'N | 35° | 35° | | | |
| | 144°-48'E | | | | | |
| 1830-June 7 | 40°-00'N | 41° | 37° | 37° | | |
| | 142°-28'E | | | | | |

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CONFIDENTIAL - USS GUARDFISH TWELFTH WAR PATROL REPORT

| TIME & DATE | LATITUDE LONGITUDE | 65' | 100' | 150' | 200' | 250' |
|---|---|---|---|---|---|---|
| 1808-June 8 | 39°-33'N 142°-27'E | 49° | 48° | 43° | 44° | |
| 1816-June 9 | 39°-14'N 142°-36'E | 43° | 40° | 34° | | |
| 1858-June 13 | 39°-18'N 142°-16'E | 48° | 40° | 39° | 40° | |
| 1917-June 14 | 39°-02'N 142°-20'E | 48° | 47° | 38° | | |

(P) HEALTH, FOOD, AND HABITABILITY

Minor colds were prevalent due to the cold damp
weather encountered but all responded to treatment. In
general the health of the crew was excellent.

A Quartermaster suffered two fractured ribs upon
being washed against a ammunition locker in heavy seas.
Recovery was normal and the patient was returned to
duty after 18 days.

Due to re-occurrence of an infected leg, caused by
an injury received during the 10th patrol, an officer
was placed on the sick list for approximately three weeks.

Two prisoners taken on 16 June were found to be
apparently free of bugs and disease. One of the prisoners
was treated for a lacerated scalp - the skull was not
fractured and there was no evidence of internal injury.

Food throughout the patrol was excellent.

Habitability was good. One air conditioning unit
was operated while in the area to reduce the moisture
in the boat. The average temperature of the injection
while submerged was 42°F. Heaters were not used while
submerged. Both heavy underwear and heavy sweaters were
usually worn while submerged.

(Q) PERSONNEL

(a) No. men detached after previous patrol----6
(b) No. men on board during patrol82
(c) No. men qualified at start of patrol----56
(d) No. men qualified at end of patrol------69
(e) No. unqualified men making first patrol--8

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CONFIDENTIAL - USS GUARDFISH TWELFTH WAR PATROL REPORT

(Q) PERSONNEL (Continued)

     The performance of duty by officers and men, with
few exceptions, was excellent under all conditions. In
spite of lack of targets, morale remained high through-
out the patrol and it is regretted that this willing
and able crew did not have an opportunity to do greater
damage to the enemy.

(R) MILES STEAMED - FUEL USED

     MIDWAY to AREA          2356 Mi.   34,690 Gals.
     IN AREA                 4313 Mi.   36,605 Gals.
     AREA TO PEARL HARBOR    3395 Mi.   53,380 Gals.
     (Via Midway)
                             TOTAL   10,064 Mi.   124,675 Gals.

(S) DURATION

     Days MIDWAY to AREA          7
     Days in Area                30
     Days AREA to PEARL HARBOR   11
     (Via Midway)
                             TOTAL   48

     DAYS Submerged               16

(T) FACTORS OF ENDURANCE REMAINING

     TORPEDOES      FUEL         PROVISIONS     PERSONNEL FACTOR

     25             9,500 Gals.  20 Days        20 Days
                    (At Midway)

Limiting factor this patrol - Operation Order.

(U) COMMUNICATIONS, RADAR, AND SONAR COUNTERMEASURES

     RADAR COUNTERMEASURES

     (1) Intercept of enemy signals.

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CONFIDENTIAL - USS GUARDFISH T.ELEFTH .AR PATROL REPORT

Intercept of Enemy Radar Signals

| DATE | SUBMARINE POSITION | FREQUENCY MEG. | PRF | PW | REMARKS PROBABLE LOCATION |
|---|---|---|---|---|---|
| 5-17-45 | 34°-06'N 139°-49'E | 157 | 500 | 7 | Land Based MIYAKI or O SHIMA |
| | | 157 | 500 | 14 | Land Based MIYAKI or O SHIMA |
| 5-18-45 | 34°-40'N 140°-59'E | 90 | 750 | 16 | Land Based NOJIMA SAKI or KATSURRA |
| | | 98 | 500 | 12 | Land Based NOJIMA SAKI or KATSURRA |
| | | 152 | 500 | - | Land Based NOJIMA SAKI |
| | | 157 | 500 | 14 | Land Based NOJIMA SAKI |
| 5-18-45 | 36°-25'N 141°-05'E | 152 | 1000 | - | Land Based-INUBO SAKI |
| | | 157 | 750 | - | Land Based-INUBO SAKI |
| 5-19-45 | 36°-49'N 141°-45'E | 79 | 500 | - | Land Based |
| | | 102 | 500 | - | Land Based |
| | | 151 | 1000 | - | Land Based |
| | | 200 | 1000 | - | Land Based |
| 5-21-45 | 41°-21'N 143°-38'E | 79 | 500 | 14 | Land Based-ERIMO SAKI |
| | | 102 | 500 | 10 | Land Based-ERIMO SAKI |
| | | 150 | 500 | - | Land Based-ERIMO SAKI |
| 5-22-45 | 41°-55'N 143°-55'E | 78 | 500 | 14 | Land Based-ERIMO SAKI |
| | | 102 | 500 | 17 | Land Based-ERIMO SAKI |
| | | 143 | 500 | - | Land Based-ERIMO SAKI |
| | | 150 | 500 | 15 | Land Based-ERIMO SAKI |
| 5-24-45 | 41°-48'N 142°-25'E | 78 | 500 | 14 | Land Based-ERIMO SAKI |
| | | 102 | 500 | 12 | Land Based |
| | | 151 | 500 | 14 | Land Based |
| 5-26-45 | 42°-13'N 141°-29'E | 80 | 500 | - | Land Based-ESAN SAKI or MURORAN |
| | | 99 | 500 | 20 | Land Based-ESAN SAKI or MURORAN |
| | | 147 | 500 | - | Land Based-ESAN SAKI or MURORAN |
| | | 150 | 500 | 20 | Land Based-ESAN SAKI or MURORAN |
| 5-26-45 | 41°-50'N 142°-16'E | 102 | 500 | 14 | Land Based |
| | | 148 | 500 | 15 | Land Based |
| | | 152 | 500 | 12 | Land Based |
| 5-27-45 | 41°-31'N 141°-56'E | 100 | 500 | - | Land Based-SHIRIYA SAKI |
| | | 150 | 500 | - | Land Based-SHIRIYA SAKI |
| 5-29-45 | 39°-15'N 142°-17'E | 150 | 500 | 12 | Vicinity of TODO SAKI |
| | | 153 | 500 | 8 | Vicinity of TODO SAKI |

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CONFIDENTIAL - USS GUARDFISH T.ELFTH WAR PATROL REPORT

DATE       SUBMARINE FREQUENCY                                 REMARKS
           POSITION      MEG.    PRF   P.W.  PROBABLE LOCATION
5-30-45    38°-36'N      197     1000  12    Vicinity of KINKASAN
           142°-06'E     150     750   -     Vicinity of KINKASAN
                         142     500   -     Vicinity of KINKASAN

6-1-45     40°-39'N      95      500   12    Land Based - HACHINOHE
           143°-02'E                             Airfield
                         103     500   15    Land Based - HACHINOHE
                                                 Airfield
                         148     500   12    Land Based - HACHINOHE
                                                 Airfield

6-7-45     41°-10'N      99      500   -     Land Based-HACHINOHE or
           142°-05'E                             SHIRIYA
                         148     500   10    Land Based-HACHINOHE or
                                                 SHIRIYA
                         148     500   30    Land Based-HACHINOHE or
                                                 SHIRIYA

6-12-45    38°-37'N      197     900   8     Shore Based-KINKASAN
           141°-59'E

6-11-45    39°-08'N      145     1000  8     Airborne
           142°-14'E

6-14-45    39°-06'N      155     500   24    Land Based
           142°-12'E
                         78      -     -     Land Based
                         150     500   15    Land Based
                         155     500   -     Land Based

(2) Jamming, own and enemy.

    None

(3) Deception, own and enemy.

    None

(4) Scope of photographs of targets of interest
    or unusual phenomena.

    No comment.

COMMUNICATIONS COUNTERMEASURES

Jamming by the enemy on area and lifeguard frequ-
encies, as usual, made copying difficult but not im-
possible. The interference caused did, however, re-
quire numerous repetitions of transmissions when clear-
ing messages on area frequency.

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CONFIDENTIAL - USS GUARDFISH THELFTH WAR PATROL REPORT

SONAR COUNTERMEASURES
None

(V) REMARKS
None

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SUBMARINE DIVISION ONE EIGHTY ONE

FB5-181/A16-3
Serial: (012)
C-O-N-F-I-D-E-N-T-I-A-L

1ST ENDORSEMENT to
USS GUARDFISH (SS217)
Report of Twelfth War Patrol

From: Commander Submarine Division ONE EIGHTY ONE.
To : Commander-in-Chief, United States Fleet.
Via : (1) Commander Submarine Squadron EIGHTEEN.
(2) Commander Submarine Force, Pacific Fleet.
(3) Commander-in-Chief, U.S. Pacific Fleet.

Subject: U.S.S. GUARDFISH (SS217), Report of Twelfth
War Patrol.

1. The Twelfth War Patrol of the U.S.S. GUARDFISH
was conducted in areas south of HOKKAIDO and east of HONSHU dur-
ing the period 8 May 1945 to 26 June 1945. From 18 May 1945 to
5 June 1945 the GUARDFISH operated as a member of a coordinated
attack group commanded by Commander B. E. Llewellyn in the area
in TORSK. Upon departure of TORSK on 5 June 1945 from the area
command, D. T. Hammond in GUARDFISH assumed command of the group.
The GUARDFISH also was employed as a lifeguard submarine during
a B-29 strike on the Tokyo area on 17 May 1945.

2. This patrol was characterized by a complete lack
of worthwhile targets in spite of thorough area coverage. This
scarcity of targets was probably due to the high percentage of
poor to zero visibility encountered during the patrol. A total
of ten enemy ships were encountered; none of them were considered
worth a torpedo. One of these targets, a trawler probably acting
as a picket boat, was encountered after the GUARDFISH had left
her area and was aggressively attacked and destroyed by gunfire.
Two prisoners were taken.

3. Gun Attack Number One: - At 0734 on 16 June 1945
sighted a small unidentified ship through the high periscope at
an estimated range of 20,000 yards. GUARDFISH maneuvered to get
ahead of target and submerged to identify it. At 1255 target was
seen to be a small trawler equipped with two antennas and one, or
possibly two, light machine guns. GUARDFISH surfaced and closed

- 1 -

— page 15 —
SUBMARINE DIVISION ONE EIGHTY ONE

FB5-181/A16-3
Care of Fleet Post Office
Serial: (012)
San Francisco, California
27 June 1945.

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

1ST ENDORSEMENT to
USS GUARDFISH (SS217)
Report of Twelfth War Patrol

Subject: U.S.S. GUARDFISH (SS217), Report of Twelfth
War Patrol.

— page 16 —
FC5-18/A16-3
Serial: 0324

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

SECOND ENDORSEMENT to:
USS GUARDFISH (SS217) Report of
TWELFTH War Patrol.

From:
To:
Via:

Subject:

SUBMARINE SQUADRON EIGHTEEN
Fleet Post Office,
San Francisco, California.
28 June 1945.

Commander Submarine Squadron EIGHTEEN.
Commander-in-Chief, U. S. FLEET.
(1) Commander Submarine Force, PACIFIC FLEET, Administration.
(2) Commander-in-Chief, U. S. PACIFIC FLEET.

U.S.S. GUARDFISH (SS217) - Report of TWELFTH War Patrol.

1. Forwarded, concurring in the remarks of the Division Commander.
It is regretted that no opportunity to fire torpedoes developed during this
patrol. Congratulations are extended to the Commanding Officer, officers and
crew for completion of the patrol and for the damage inflicted on the enemy.

2. The following assessment of damage is recommended:

SUNK
1 TRAWLER (EU) - - - - - - - 100 tons

[SIGNATURE: Stanley P. Moseley]
STANLEY P. MOSELEY.

— page 17 —
FF12-10(A)/A16-3(18)
Serial: 01661
CONFIDENTIAL

SUBMARINE FORCE, PACIFIC FLEET
mr
Care of Fleet Post Office,
San Francisco, California.
4 July 1945.
NOTE: THIS REPORT WILL BE
DESTROYED PRIOR TO
ENTERING PATROL AREA.

THIRD ENDORSEMENT to
GUARDFISH Report of
Twelfth War Patrol.

COMSUBSPAC PATROL REPORT NO. 809
U.S.S. GUARDFISH - TWELFTH WAR PATROL.

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

Subject: U.S.S. GUARDFISH (SS217) - Report of Twelfth War
Patrol (8 May to 26 June 1945).

1. The twelfth war patrol of the GUARDFISH, under the
command of Commander D. T. Hammond, U.S. Navy, was conducted in
areas south of Hokkaido and east of Honshu. The GUARDFISH performed
lifeguard duties and operated in coordinated attack groups commanded
by the commanding officer of the U.S.S. TORSK and, later, by the
commanding officer of the GUARDFISH.

2. Despite thorough, aggressive area coverage, the GUARD-
FISH was afforded no opportunity for torpedo attack or rescue during
lifeguard duties. Some relief was obtained by a well conducted gun
attack which resulted in the sinking of a 100 ton trawler.

3. Award of Submarine Combat Insignia for this patrol is
not authorized.

4. The Commander Submarine Force, Pacific Fleet, congra-
tulates the commanding officer, officers, and crew of the GUARDFISH
for completion of this long, arduous patrol, and regrets that better
targets were not available for the GUARDFISH on her last patrol be-
fore refit for target and training services. The GUARDFISH, during
her long, illustrious combat career, has sunk twenty-five enemy ships
(500 tons or over) for a total tonnage of 168,142 and damaged five
enemy ships (500 tons or over) for a total tonnage of 26,800 - total sunk and damaged: thirty
enemy ships, 194,942 tons. Included in the above figures are three destroyers
and one naval auxiliary sunk and one destroyer damaged. The GUARD-
FISH is credited with having inflicted the following damage upon the
enemy during this patrol:

S U N K

1 - MIS (Trawler) (EC) - 100 tons (Gun Attack No. 1)

E. E. YEOMANS.

Distribution & Authentication
on next page.

- 1 -

— page 18 —
FF12-10(A)/416-3(18) SUBMARINE FORCE, PACIFIC FLEET
Serial 01661 Care of Fleet Post Office,
San Francisco, California.
4 July 1945.

CONFIDENTIAL

NOTE: THIS REPORT WILL BE
DESTROYED PRIOR TO
ENTERING PATROL AREA.

THIRD ENDORSEMENT to
COMSUBSPAC Report of
GUARD FISH Twelfth War
Patrol.

COMSUBSPAC PATROL REPORT NO. 809
U.S.S. GUARD FISH - TWELFTH WAR PATROL.

Subject: U.S.S. GUARD FISH (SS217) - Report of Twelfth War
Patrol (8 May to 26 June 1945).

— page 19 —
[HANDWRITTEN: A]

DATE 19 Aug - 9 Sep 42
FROM C.O. USS GUARDFISH
     (SS-217)

NAME GUARDFISH
SERIAL None
DATE 19 Aug - 9 Sep 42

SUBJECT ACTION BY U.S. SUBMARINE

12 Form Reports of action in Lat. 38.26 N, Long. 145.39 E,
during 1st War Patrol (6 Aug - 15 Sep 42). Claims 1 Trawler
sunk by, 6 Freighters sunk.

(CENPAC: U.S. Submarine Actions)

FILED: War Diary
       Separately as ORIGINAL
       As Enc. to SubRon 8, ser 0102, of 17 Sep 42;

MICROSERIAL NO. | ACTION REPORT OPNAV FORM 3840-13 (10-55)
                | B-21013

[HANDWRITTEN: A]

DATE 19-21 October 1942
FROM C.O. USS GUARDFISH
     (SS-217)

NAME GUARDFISH
SERIAL None
DATE 19-21 October 1942

SUBJECT ACTION BY U.S. SUBMARINE

3 Form Reports of action in Lat. 27.32 N, Long. 127.24 E,
during 2nd War Patrol (30 Sep - 28 Nov 42). Claims 1
Freighter, 1 Tanker sunk; 1 Freighter damaged.

(CENPAC: U.S. Submarine Actions)

FILED: War Diary
       Separately as ORIGINAL
       As Enc. to SubPac, ser 2618, no date;

MICROSERIAL NO. | ACTION REPORT OPNAV FORM 3840-13 (10-55)
                | B-21013

[HANDWRITTEN: A]

DATE 12-23 January 1943
FROM CO - USS GUARDFISH(SS-217)

NAME GUARDFISH
SERIAL
DATE

SUBJECT SUBMARINE ACTION REPORT

Three form reports of torpedo firings on THIRD WAR PATROL
in Admiralty Islands. Claims 2 destroyers and 1 freighter
sunk.

(CENPAC: SUB OPS)

FILED: War Diary
       Separately as ORIGINAL

MICROSERIAL NO. | ACTION REPORT OPNAV FORM 3840-13 (11-55)
                | B-28082

— page 20 —
DATE 28 October 1943 NAME GUARDFISH
FROM CO - USS GUARDFISH(SS-217)
SERIAL 004
DATE 3 November 1943
SUBJECT SPECIAL MISSION
Report(to TASK FORCE 31) of landing of 2 parties in Cape
Torokina area of West Coast of BOUGAINVILLE and survey
of beaches and coastal waters in that region.
(SOPAC: SUB OPS)(SOPAC:CHERRYBLOSSOM: FIRE SUPPORT etc)
FILED: War Diary
Separately as ORIGINAL CARBON COPY

MICROSERIAL NO. | ACTION REPORT OPNAV FORM 3480-13 (11-55)
| B-28082

DATE 3 December 1943 NAME GUARDFISH
FROM C.O. USS GUARDFISH (SS 217)
SERIAL 009
DATE 11 December 1943
SUBJECT Damage Sustained in Collision with US Army Y-20,
Report of.
USS GUARDFISH (SS 217) was damaged as a result of colliding
with U.S. ARMY Y-20 at 2355 L, 3 Dec. 1943, in Lat. 26.45 S,
Long. 154.30.5 E. (C.O. N. G. WARD)
(SowesPac: U.S. SUBMARINE ACTIONS:B-15)
FILED: War Diary
Separately as ORIGINAL;

MICROSERIAL NO. | ACTION REPORT OPNAV-29-100 REV. 12-46
| B-5171

DATE 25 July 1944 NAME GUARDFISH
FROM CROSS INDEX CARD
SERIAL
DATE
SUBJECT Coordinated Patrol Report
Report of SEVENTH Coordinated Attack Group under Capt.W.V.
O'Regan (MICKEY FINNS) in LUZON STRAITS area. Sank or
damaged 126,200 tons of enemy shipping.
FILED: War Diary
Separately under TASK GROUP 17.16 ser 058 of 23 Aug 44

MICROSERIAL NO. | ACTION REPORT OPNAV FORM 38XG-13 (10-55)
| B-21013

— page 21 —
[HANDWRITTEN: A]

DATE 16 June 1945
FROM CO - USS GUARDFISH (SS-217)
NAME GUARDFISH
SERIAL 09
DATE 26 June 1945

SUBJECT Rescue Operations

Report(to SUBSPAC) of rescue of two Japanese survivors
of trawler sunk in Lat 38-23N, Long 145-00E. Prisoners
of War landed at Pearl Harbor 26 June 1945.

(GENPAC. SUB OPS)
FILED: War Diary

Separately
as ORIGINAL

MICROSERIAL NO.
ACTION REPORT OPNAV FORM 3880-13 (11-55) B-2

— page 22 —
[HANDWRITTEN: Original]
CONFIDENTIAL

U. S. SUBMARINE ACTION REPORT

U. S. S. GUARDFISH Date: January 12, [HANDWRITTEN: 194]2
Time 2357L Location: Latitude 2-51S
Longitude 149-43E

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; visibility 5,000 yards; atmosphere hazy.
Sea conditions Calm.
Sound conditions (if applicable) Good. (Target picked up at 5,000 yards)
Type of operations Offensive patrol.
Specific objective Attack and destroy enemy vessels.
Forces engaged: Own U.S.S. GUARDFISH
(Name and Type) Enemy DD - Hatsuharu type
Type of attack (own/enemy—scratch one) Torpedo.

Brief description Approach to firing point was made by SJ radar and TDC.
Guardfish submerged to 40 feet at 6000 yards range.

Weapons employed:
Own Mk XIV Mod 3 Torpedoes
Enemy -----
Ammunition expended 3 Mk XIV Mod 3 Torpedoes.

— page 23 —
[HANDWRITTEN: logon]
CONFIDENTIAL

Evasive tactics employed:
Own
Enemy

For Torpedo Attack (Own):
Firing range 1700 yards
Keel depth 40 feet
[CROSSED OUT: Straight] curved shot(s)
Type spread Divergent 1½°

Type Attack
(check)
Periscope
Periscope and TDC
Sound

Attack: (unopposed xx
(check) (opposed by air screen/close screen
Sound and TDC & SJ Radar xx

Detected: (prior to firing
(check) (after firing
(undetected xx

Results: (Certain)
Destruction of enemy vessel.

(Estimated --

Damage to own ship None

[CROSSED OUT: lookout] special equipment detector operator
TEDER, Lawrence Frank, FC1c 291 58 79
(Name) (Rate) (ServiceNo.)

made initial contact by (sound) SJ Radar (SMSD), (MAD), (Sight)
(radar),

Brief Remarks Enemy screws stopped immediately after torpedo explosion.
One minute and 30 seconds after torpedo explosion a terrific ex-
plosion was heard from vicinity of enemy

— page 24 —
DECLASSIFIED
1.
Reg. No. [HANDWRITTEN: 1108]
R.S. No. [HANDWRITTEN: 10 0674]

U. S. SUBMARINE ACTION REPORT

U.S.S. [HANDWRITTEN: GUARDFISH]
Time [HANDWRITTEN: 0640K]

Date: [HANDWRITTEN: August 19]
Location: Latitude [HANDWRITTEN: 38-26N]
Longitude [HANDWRITTEN: 145-39E] [HANDWRITTEN: 1942 OCT 10 15 49]

[STAMP: COMMANDER IN CHIEF U.S. FLEET RECEIVED OCT 10 1942]

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: Sky overcast, visibility good]
SEA CONDITIONS [HANDWRITTEN: Moderate Swells]
SOUND CONDITIONS (if applicable) [HANDWRITTEN: Range obtained by single ping.]
TYPE OF OPERATION [HANDWRITTEN: Submerged attack]

SPECIFIC OBJECTIVE [HANDWRITTEN: To Destroy]

FORCES ENGAGED: OWN [HANDWRITTEN: U.S.S. GUARDFISH]
(Name and Type) ENEMY [HANDWRITTEN: Japanese naval auxiliary, goal posts forward, mast]
[HANDWRITTEN: aft, one stack, 8000 tons]
TYPE OF ATTACK (Own/Enemy - scratch one) [HANDWRITTEN: Submerged attack with torpedoes]

BRIEF DESCRIPTION [HANDWRITTEN: Sighted target at 0625K. Went to battle stations and]
[HANDWRITTEN: approached to firing position. Fired a 2° spread of 3 torpedoes at]
[HANDWRITTEN: range of 1300 yards at 0640K.]
WEAPONS EMPLOYED:
Own [HANDWRITTEN: Torpedoes]
Enemy [HANDWRITTEN: Destroyer escorts used depth charges.]

AMMUNITION EXPENDED [HANDWRITTEN: 3 torpedoes]

EVASIVE TACTICS EMPLOYED:
Own [HANDWRITTEN: Remained at periscope depth and rigged for depth charge]
[HANDWRITTEN: attack.]
Enemy [HANDWRITTEN: Maneuvered to avoid, increased speed, and headed direct-]
[HANDWRITTEN: ly away from GUARDFISH position. ENCLOSURE D(A)]

CSPF-4-7-42-1000

— page 25 —
FOR TORPEDO ATTACK (Own):
Firing range - `[HANDWRITTEN: 1300 yards]`
Keel depth - `[HANDWRITTEN: 64 feet]`
Straight/`[HANDWRITTEN: XXX]` shot(s)
Type spread - `[HANDWRITTEN: 2° spread, 10 second interval]`

Attack: (unopposed) `[HANDWRITTEN: X]`
(check) `[HANDWRITTEN: X]` opposed by air screen/close screen

Detected: (prior to firing) `[HANDWRITTEN: X]`
(after firing) `[HANDWRITTEN: XXXXXXXXX]`
(undetected) `[HANDWRITTEN: XXXXXXXXX]`

RESULTS: (Certain) `[HANDWRITTEN: Miss]`

(Estimated)

TYPE ATTACK
(check)
Periscope
Periscope and TDC `[HANDWRITTEN: XXX]`
Sound
Sound and TDC

DAMAGE TO OWN SHIP `[HANDWRITTEN: None]`

BRIEF REMARKS `[HANDWRITTEN: Two minutes after firing three successive distant explo-
sions were heard and felt. It was believed that the torpedoes had
missed and that these explosions might have been bombs dropped from
an accompanying plane. A quick periscope search, however, revealed
no such plane. The intervals between the explosions approximated the
firing interval, and it is quite possible that all the torpedoes were
near misses and exploded magnetically. The target exhibited no visible
damage.

The performance of the officers and crew was entirely creditable
during this, their first attack.]`

— page 26 —
CONFIDENTIAL
U.S.S.
GUARDFISH
1947K
Time
2.
U. S. SUBMARINE ACTION REPORT
Date: August 22,
Location: Latitude
39-40N
142-10E
Longitude
INSTRUCTIONS
10 0674
1942
(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
SEA CONDITIONS
Clear, visibility good, twilight
Moderate swells
SOUND CONDITIONS (if applicable)
---
TYPE OF OPERATIONS
Gun attack
SPECIFIC OBJECTIVE
To destroy
FORCES ENGAGED: OWN
U.S.S. GUARDFISH
Japanese trawler of about 400 tons
(Name and Type) ENEMY
TYPE OF ATTACK (Own/Enemy
scratch one)
Surface attack with gun
Sighted trawler at 1931K. Went to battle stations sur-
BRIEF DESCRIPTION face and closed to firing position. Fired with three inch deck gun,
50 cal. M.G., submachine guns, and small arms. Range 50 to 800 yards.
WEAPONS EMPLOYED:
Three inch deck gun, 50 cal. M.G., Submachine guns and
Small arms.
None
Enemy
57 rounds 3" 50 cal., 326 rounds machine gun and small
AMMUNITION EXPENDED
arms.
EVASIVE TACTICS EMPLOYED:
Own
Enemy
Left area at high speed.
Maneuvered at best speed.
CSPF-4-7-42-1000
ENCLOSURE D
(A)

— page 27 —
FOR TORPEDO ATTACK (Own):
Firing range 50 to 800 yards
Keel depth Surface
[UNCLEAR: STOOKXKXKXXKXXKXXKXXV]
[UNCLEAR: TXXEVXXIX]
Attack: (unopposed
(check) (opposed By [HANDWRITTEN: air Boroch/close screen]
Detected: (prior to firing XX
(check) (after firing
(undetected
RESULTS: (Certain) Trawler left completely in flames, and sinking. Several
explosions noted after leaving. Complete loss.
(Estimated)

DAMAGE TO OWN SHIP None

BRIEF REMARKS This is the first gun engagement this vessel has experienced
It is considered that an excellent showing was made as an estimated 20
hits were made out of 57 rounds fired. Three of the first five salvos
went through the pilot house.

The gunnery officer and gun's crew as well as the officers and
men manning machine guns and small arms exposed themselves without
hesitation to probable enemy defensive action.
TYPE ATTACK
(check)
Periscope
Periscope and TDC
Sound
Sound and TDC
Gun xxx
ר

— page 28 —
10 0674
3.
CONFIDENTIAL
U. S. SUBMARINE ACTION REPORT

U.S.S. GUARDFISH Date: August 23, 1942
Time 1935K Location: Latitude 39-15N
Longitude 142-08E

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 Sky overcast, visibility fair, twilight.
SEA CONDITIONS Calm
SOUND CONDITIONS (if applicable) ---
TYPE OF OPERATIONS Gun attack

SPECIFIC OBJECTIVE To destroy

FORCES ENGAGED: OWN U.S.S. GUARDFISH

(Name and Type) ENEMY Japanese sampan of 100 tons

TYPE OF ATTACK (Own/~~Enemy~~ - scratch one) Surface attack with gun

BRIEF DESCRIPTION At 1924K made battle surface and approached to within
firing range. 1935K commenced firing with 3" gun, machine guns and
small arms. 1948K Sampan sank.
WEAPONS EMPLOYED:
Own 3" deck gun, 50 cal. M.G., submachine guns and small arms.
Enemy Small arms.
AMMUNITION EXPENDED 11 rounds of 3" 50 cal. 425 rounds of 50 cal. and
small arms.
EVASIVE TACTICS EMPLOYED:
Own Cleared area at high speed.
Enemy Maneuvered at best speed.

CSPF-4-7-42-1000 ENCLOSURE D[HANDWRITTEN: (A)]

— page 29 —
FOR TORPEDO ATTACK (Own):
Firing range 50 to 200 yds
Keel depth Surface
Straight/curved shot(s)
Type spread -----

Attack: (unopposed by small arm firing.
(check) [HANDWRITTEN: x]
Detected: (prior to firing
(check) [HANDWRITTEN: xxxxxxxxx]
(undetected

RESULTS: (Certain) Sunk

(Estimated)

DAMAGE TO OWN SHIP None

BRIEF REMARKS In second gun attack gun crew showed improvement scoring
7 hits with 11 rounds of three inch ammunition. Vessel was also
riddled with 50 cal. and small arms. Vessel was sunk with crew of
eight.
As in the preceding gun attack, the gun's crew and bridge force
eagerly and efficiently manned their exposed stations.

TYPE ATTACK
(check)
Periscope
Periscope and TDC
Sound
Sound and TDC

— page 31 —
FOR TORPEDO ATTACK (Own):
Firing range 1200
Keel depth 64
Straight/xvedxakotex shots
Type spread 2º spread, 10 sec. interval.
Attack: (unopposed XX
(check) (opposed by air screen/close screen
Detected: (prior to firing
(check) (after firing
(undetected xxx
RESULTS: (Certain) 7200 ton freighter sunk.
TYPE ATTACK
(check)
Periscope
Periscope and TDC XX
Sound
Sound and TDC

(Estimated) --
DAMAGE TO OWN SHIP None.
BRIEF REMARKS This ship was apparently one of a convoy heaving Ishino-
maki Wan heading north toward Kinkasan. Two ships had been sighted
previously, but were unable to close. One ship was sighted astern of
target, but she returned to port when the target was sunk.
The commanding officer was supported ably by the officers and
crew at their battle stations.

— page 32 —
5.
10 0674

CONFIDENTIAL

U. S. SUBMARINE ACTION REPORT

U.S.S. [HANDWRITTEN: GUARDFISH]
Time [HANDWRITTEN: 0633K]
Date: [HANDWRITTEN: August 25,] [HANDWRITTEN: 1942]
Location: Latitude [HANDWRITTEN: 40-04N]
Longitude [HANDWRITTEN: 142-05E]

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: Sky overcast, visibility fair.]
SEA CONDITIONS [HANDWRITTEN: Moderate swells.]
SOUND CONDITIONS (if applicable) [HANDWRITTEN: Poor]
TYPE OF OPERATIONS [HANDWRITTEN: Submerged attack]

SPECIFIC OBJECTIVE [HANDWRITTEN: To destroy]

FORCES ENGAGED: OWN [HANDWRITTEN: U.S.S. GUARDFISH]
(Name and Type) ENEMY [HANDWRITTEN: Japanese freighter, Lyons Maru Class, 7000 tons.]
TYPE OF ATTACK (Own/Enemy - scratch one) [HANDWRITTEN: Submerged attack with torpedoes]

BRIEF DESCRIPTION OF ACTION:
[HANDWRITTEN: At 0554K sighted freighter. Went to battle stations and]
[HANDWRITTEN: commenced approach. At 0633K fired two torpedoes with 1° spread, 1500]
[HANDWRITTEN: yard range. 0635K fired third torpedo. First two torpedoes seen to hit]
[HANDWRITTEN: but no explosion. Third torpedo exploded either under or close to target.]

WEAPONS EMPLOYED:
Own [HANDWRITTEN: Torpedoes]
Enemy [HANDWRITTEN: Five patrol vessels]

AMMUNITION EXPENDED [HANDWRITTEN: 3 torpedoes]

EVASIVE TACTICS EMPLOYED:
Own [HANDWRITTEN: Went to 120 feet and ran silently.]
Enemy [HANDWRITTEN: Turned away between second and third torpedoes.]

CSPF-4-7-42-1000
ENCLOSURE B[HANDWRITTEN: (A)]

— page 33 —
FOR TORPEDO ATTACK (Own):

Firing range 1500 yds
Keel depth 64 ft
Straight [UNCLEAR: 3] shot(s)
Type spread 1° divergent spread, 10 sec. interval

Attack: (check)
( ) unopposed [HANDWRITTEN: XX]
( ) opposed by air screen/close screen

Detected: (check)
( ) (prior to firing
( ) (after firing
( ) (undetected [HANDWRITTEN: XX]

RESULTS: (Certain) Two hits with torpedoes that failed to explode. One was
seen in water alongside bow of target with warhead off. Plume of water
was seen alongside bridge but no explosion heard. Believe this was
caused by air flask explosion of second torpedo. Third torpedo ex-
ploded either under or near target.

(Estimated) It is believed that freighter was damaged as she
slowed, and turned toward beach. She appeared to be lower in water but
not sinking.

DAMAGE TO OWN SHIP None.

BRIEF REMARKS Decided to surface and chase target. Raised Radar and picked
up 4 planes at 14 to 16 miles getting closer; therefore did not surface.
Other patrol vessels appeared from direction of shore. Went to
120 feet and ran silent, evading patrol.

The failure of the torpedoes to explode is not attributed to the
personnel of the ship, regular and diligent routine having been
followed by the torpedo force. The officers and crew performed ably
without exception.

TYPE ATTACK
(check)
Periscope
Periscope and TDC [HANDWRITTEN: XX]
Sound
Sound and TDC

— page 34 —
CONFIDENTIAL
6
U. S. SUBMARINE ACTION REPORT
10 0674

U.S.S. GUARDFISH
Time 0844K
Date: [HANDWRITTEN: September 2,] 1942
Location: Latitude [HANDWRITTEN: 41-49N]
Longitude [HANDWRITTEN: 143-04E]

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: Sky overcast, visibility fair.]
SEA CONDITIONS [HANDWRITTEN: Heavy seas]
SOUND CONDITIONS (if applicable) [HANDWRITTEN: Poor.]
TYPE OF OPERATION: [HANDWRITTEN: Submerged attack]

SPECIFIC OBJECTIVE [HANDWRITTEN: To destroy]

FORCES ENGAGED: OWN [HANDWRITTEN: U.S.S. GUARDFISH]

(Name and Type) ENEMY [HANDWRITTEN: Japanese freighter, Atago Maru class, 7540 tons.]

TYPE OF ATTACK (Own/[CROSSED OUT: Enemy] - [CROSSED OUT: scratch one]) [HANDWRITTEN: Submerged attack with torpedoes.]

BRIEF DESCRIPTION [HANDWRITTEN: 0640K sighted freighter while patrolling on surface.
Changed course and increased speed to gain position ahead of freighter.
0727K submerged and began approach. 0844K fired three torpedoes 2°
spread, range 1000 yds. Two hits. 0847K fired fourth torpedo which missed.]

WEAPONS EMPLOYED:
Own [HANDWRITTEN: Torpedoes]
Enemy [HANDWRITTEN: Patrol vessels]

AMMUNITION EXPENDED [HANDWRITTEN: 4 torpedoes]

EVASIVE TACTICS EMPLOYED:
Own [HANDWRITTEN: Evaded patrol vessels.]
Enemy [HANDWRITTEN: None.]

CSPF-4-7-42-1000
ENCLOSURE D(A)

— page 35 —
FOR TORPEDO ATTACK (Own):
Firing range 1000 yds
Keel depth 64 ft.
Straight [CROSSED OUT: XXXXX] shot(s)
Type spread 2° divergent spread, 10 sec interval

TYPE ATTACK
(check)
Periscope
Periscope and TDC XX
Sound
Sound and TDC

Attack: (unopposed XX
(check) (opposed by air screen/close screen

Detected: (prior to firing
(check) (after firing
(undetected XX

RESULTS: (Certain) Two hits, freighter broke in half and sank at 0900K.

(Estimated)

DAMAGE TO OWN SHIP None.

BRIEF REMARKS Two lifeboats loaded with survivors were sighted.
As on previous attacks the Commanding Officer received excellent
support from the officers and crew. The diving officer, Lt. Richard
H. Bowers, U.S.N., gave an especially creditable performance of con-
trolling the depth of the vessel in a heavy seaway.

— page 36 —
10 0674

CONFIDENTIAL
7
U. S. SUBMARINE ACTION REPORT

U.S.S. GUARDFISH Date: September 4, 1942
Time 1246K Location: Latitude 40-28N
Longitude 141-41E

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 Visibility good.

SEA CONDITIONS Calm

SOUND CONDITIONS (if applicable) Poor

TYPE OF OPERATIONS Submerged attack

SPECIFIC OBJECTIVE To destroy

FORCES ENGAGED: OWN U.S.S. GUARDFISH

(Name and Type) ENEMY Japanese freighter, 6000 tons.

TYPE OF ATTACK (Own/[CROSSED OUT: Enemy] - scratch one) Submerged attack with torpedoes

BRIEF DESCRIPTION At 1117K sighted three freighters on Northwesterly course.
Tried to close but impossible due to S.E. current. At 1246K fired one
torpedo, range 5000 yds, point of aim between two freighters.
WEAPONS EMPLOYED:
Own Torpedoes.
Enemy None.

AMMUNITION EXPENDED 1 torpedo

EVASIVE TACTICS EMPLOYED:
Own None
Enemy None

CSPF-4-7-42-1000 ENCLOSURE D (A)

— page 37 —
[UNCLEAR: 1800 OF]

FOR TORPEDO ATTACK (Own):
Firing range 5000 yards
Keel depth 64 ft.
Straight/curved shot(s)
Type spread None

Attack: (unopposed XX
(opposed by air screen/close screen

Detected: (prior to firing
(after firing
(undetected XX

RESULTS: (Certain) None

(Estimated) Believe the target was damaged as follows: Derange-
ment of rudder; probable internal damage by explosion and fire.

DAMAGE TO OWN SHIP None

BRIEF REMARKS No explosion heard in conning tower, but forward torpedo
room reported a concussion. One freighter was seen to circle, smoke
excessively, and head toward beach soon disappearing in own smoke.
The other two continued on their course apparently at greater speed.

The officers and crew performed well at their stations.

TYPE ATTACK
(check)
Periscope
Periscope and TDC XX
Sound
Sound and TDC

— page 38 —
CONFIDENTIAL
U.S.S. GUARDFISH
Time 1744K

8
U. S. SUBMARINE ACTION REPORT
10 0674
_Date: September 4, 1942
Location: Latitude 40-14N
Longitude 141-51E
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 Visibility good
SEA CONDITIONS Calm
SOUND CONDITIONS (if applicable) Poor
TYPE OF OPERATIONS Submerged attack
SPECIFIC OBJECTIVE To destroy
FORCES ENGAGED: OWN U.S.S. CUARDFISH
(Name and Type) ENEMY Japanese freighter, flush deck type, 11,000 to
13,000 tons.
TYPE OF ATTACK (Own/Enemy - scratch one) Submerged attack with torpedoes.

BRIEF DESCRIPTION At 1634K sighted masts of freighter. Went to battle
stations and commenced approach. 1655K sighted second freighter astern
of first. 1744K fired one torpede, range 500 yds. 17440K torpede hit
1749K freighter sank.
WEAPONS EMPLOYED:
Own Torpedoes
Enemy None
AMMUNITION EXPENDED One torpede
EVASIVE TACTICS EMPLOYED:
Own None
Enemy None
CSPF-4-7-42-1000
ENCLOSURE D (4)
1
ר

— page 39 —
FOR TORPEDO ATTACK (Own):
Firing range 500 yds
Keel depth 64 ft.
Straight/[HANDWRITTEN: Curved] shot(s)
Type spread None

Attack: (unopposed) XX
(check) (opposed by air screen/close screen)

Detected: (prior to firing)
(check) (after firing)
(undetected) XX

TYPE ATTACK
(check)
Periscope
Periscope and TDC XX
Sound
Sound and TDC

RESULTS: (Certain) 11,000 to 13,000 ton Japanese freighter hit amid-
ships with one torpedo and observed to sink.

(Estimated)

DAMAGE TO OWN SHIP None

BRIEF REMARKS This approach was a combined approach on two freighters.
After hit was observed on first freighter set up was immediately shifted
to second freighter, and two torpedoes fired one minute later. Second
ship was sunk as described in action report #9.

For Commanding Officer's report on personnel, please refer to
attack #9 of this same date.

— page 40 —
CONFIDENTIAL

9
U. S. SUBMARINE ACTION REPORT
10 0674
U.S.S. GUARDFISH
Date: September 4, 1942
Time 1745K
Location: Latitude 40-14N
Longitude 141-51E

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 Visibility good
SEA CONDITIONS Calm
SOUND CONDITIONS (if applicable) Poor
TYPE OF OPERATIONS Submerged attack
SPECIFIC OBJECTIVE To destroy
FORCES ENGAGED: OWN U.S.S. GUARDFISH

(Name and Type) ENEMY Japanese freighter, flush deck type, 9000-
11,000 tons.
TYPE OF ATTACK (Own/Haemy scratch one) Submerged attack with torpedoes.

BRIEF DESCRIPTION This is a continuation of attack #8. After seeing hit
on that attack, shifted set up to second freighter and at 1745K fired
two torpedoes range 1000 yards, 2° spread. One hit, Freighter sank at
1752K.

WEAPONS EMPLOYED:
Own Torpedoes
Enemy None
AMMUNITION EXPENDED Two torpedoes
EVASIVE TACTICS EMPLOYED:
Own None
Enemy None.

CSPF-4-7-42-1000 ENCLOSURE D(A)

— page 41 —
[STAMP: 1930 01]

FOR TORPEDO ATTACK (Own):
Firing range [HANDWRITTEN: 1000 yards]
Keel depth [HANDWRITTEN: 64 ft.]
Straight [HANDWRITTEN: xx] curved shot(s)
Type spread [HANDWRITTEN: 2° divergent spread, 10 sec interval.]
Attack: (unopposed [HANDWRITTEN: xx]
(opposed by air screen/close screen
Detected: (prior to firing
(after firing
(undetected [HANDWRITTEN: xx]
RESULTS: (Certain) [HANDWRITTEN: One hit. Freighter of 9000 - 11,000 tons observed to]
[HANDWRITTEN: sink.]
(Estimated)

TYPE ATTACK
(check)
Periscope
Periscope and TDC [HANDWRITTEN: xx]
Sound
Sound and TDC

DAMAGE TO OWN SHIP [HANDWRITTEN: None.]

BRIEF REMARKS [HANDWRITTEN: This attack occurred immediately after attack #8. Eight or]
[HANDWRITTEN: ten men were observed in life boat. After observing this sinking two]
[HANDWRITTEN: more freighters and about three miles astern of this ship were]
[HANDWRITTEN: seen retreating into Kuji Wan.]

[HANDWRITTEN: The success of the simultaneous attacks described under attack #8]
[HANDWRITTEN: and attack #9 (above) was in a great part due to the expert tracking and]
[HANDWRITTEN: fire control management of the Gunnery and Torpedo Officer, Lieutenant]
[HANDWRITTEN: Bladen D. Claggett, USN. The remainder of the officers and crew performed]
[HANDWRITTEN: with credit and precision at their battle stations.]

— page 42 —
10 0674
CONFIDENTIAL
10
U. S. SUBMARINE ACTION REPORT

U.S.S. GUARDFISH Date: September 4, 1942
Time 1846K Location: Latitude 40-12N
Longitude 141-49E

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 Visibility good

SEA CONDITIONS Calm

SOUND CONDITIONS (if applicable) Poor

TYPE OF OPERATIONS Submerged Attack

SPECIFIC OBJECTIVE To destroy

FORCES ENGAGED: OWN U.S.S. GUARDFISH

(Name and Type) ENEMY Japanese freighter, Seattle Maru type, 5800 tons.

TYPE OF ATTACK (Own [crossed out]Enemy - scratch one) Submerged attack with torpedoes.

BRIEF DESCRIPTION At 1820K commenced maneuvering to gain firing
position on freighter that was seen anchored in Kuji Wan. 1846K fired
one torpedo at low speed at anchored freighter, range 6500 yards. 7½
minutes later explosion was heard and seen alongside freighter. 1903
freighter was seen to sink.

WEAPONS EMPLOYED:
Own Torpedoes

Enemy Patrol vessels stood out of harbor.

AMMUNITION EXPENDED One torpedo

EVASIVE TACTICS EMPLOYED:
Own None

Enemy None

CSPF-4-7-42-1000 ENCLOSURE D[HANDWRITTEN: (A)]

— page 43 —
1730 01

FOR TORPEDO ATTACK (Own):
Range                                6500 yards by range estimate;
Firing range                         Over 7500 yds by torpedo run
Keel depth                           64 ft.
Straight [UNCLEAR: run] shot(s)
Type spread                          None.

Attack: (unopposed)                  XX
        (opposed by air screen/close screen)

Detected: (prior to firing)
          (after firing)
          (undetected)               XX

RESULTS: (Certain)                   One hit. Freighter, Seattle Maru class, 5800 tons.
                                     Observed to sink.

(Estimated)

DAMAGE TO OWN SHIP                   None.

BRIEF REMARKS
This attack occurred after attacks 8, 9. It was a 6500 to
7500 yard shot at an anchored target. Ship was maneuvered to get zero
gyro angle, and torpedo was fired with target bearing 0° relative.
Ship sank with part of bow sticking out.

The success of this attack is primarily attributable to the expert
navigational effort of Lt. Herman J. Kessler, U.S.N. who skillfully
piloted the vessel close aboard but safely past the dangerous rocks
at the Northern edge of the mouth of Kuji Wan. The remainder of
the officers and crew manned their stations efficiently.

TYPE ATTACK
(check)
Periscope                            XX
Periscope and TDC
Sound
Sound and TDC

— page 44 —
CONFIDENTIAL
11
U. S. SUBMARINE ACTION REPORT

U.S.S. GUARDFISH Date: September 4, 1942
Time 1926K Location: Latitude 40-10N
Longitude 141-53E

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 Visibility poor - twilight
SEA CONDITIONS Calm
SOUND CONDITIONS (if applicable) Poor
TYPE OF OPERATIONS Submerged attack

SPECIFIC OBJECTIVE To destroy

FORCES ENGAGED: OWN U.S.S. GUARDFISH

(Name and Type) ENEMY Japanese freighter, similar to Alaska Maru, except
larger, 9000 tons.

TYPE OF ATTACK (Own/~~Enemy~~ - scratch one) Submerged attack with torpedoes

BRIEF DESCRIPTION At 1905K sighted freighter on course Northwest. Commenced
approach. 1926K fired two torpedoes 2° spread 1 minute firing interval.
1927K hit range. 1928K target was hit and began to settle. Fired
third torpedo which missed. 1942K ship sank.

WEAPONS EMPLOYED:
Own Torpedoes
Enemy Patrol boats, depth charges.

AMMUNITION EXPENDED 3 torpedoes

EVASIVE TACTICS EMPLOYED:
Own Ran silent at 90 feet
Enemy None.

CSPF-4-7-42-1000 ENCLOSURE D [HANDWRITTEN: (A)]
10 0674

— page 45 —
FOR TORPEDO ATTACK (Own):
Firing range 1000 yards
Keel depth 64 ft.
2 Straight/curved shot(s)
Type spread 2° divergent spread, 1 min & 2 min
intervals.

TYPE ATTACK
(check)
Periscope
Periscope and TDC [CROSSED OUT: XX]
Sound
Sound and TDC

Attack: [CROSSED OUT: unexposed]
(check) [CROSSED OUT: exposed by x patrol vessels]
Detected: (prior to firing by patrol vessels
(check) [CROSSED OUT: after firing]
[CROSSED OUT: undetected]

RESULTS: (Certain) 9000 ton Japanese freighter sunk

(Estimated)

DAMAGE TO OWN SHIP None

BRIEF REMARKS Freighter was hit by one torpedo. Did not seem to be
damaged badly so third torpedo was fired. Freighter was seen to
sink at 1942K. Patrol vessels attracted by previous sinkings were
searching in area during attack. After attack went to 90 feet and
ran silent. 2012K to 2017K seven depth charges were dropped. None
close aboard. 2042K surfaced and cleared area at high speed avoiding
the lights of two patrol vessels.
This attack is considered an excellent performance on the part
of the officers and crew.

— page 46 —
10 0674

CONFIDENTIAL

12
U. S. SUBMARINE ACTION REPORT

U.S.S. GUARDFISH Date: September 9 1942
Time 1031K Location: Latitude 38-45N
Longitude 141-50E

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 Sky overcast, visibility good.

SEA CONDITIONS Moderate swells.

SOUND CONDITIONS (if applicable) Fair

TYPE OF OPERATIONS Submerged attack

SPECIFIC OBJECTIVE To destroy

FORCES ENGAGED: OWN U.S.S. GUARDFISH

(Name and Type) ENEMY Japanese freighter, 9000 tons.

TYPE OF ATTACK (Own/Enemy - scratch one) Submerged attack with torpedoes.

BRIEF DESCRIPTION OF ACTION:
At 0914K sighted masts of freighter. Commenced approach.
1031K fired two torpedoes, 2° spread, 40 sec. interval, range
700 yds. missed. Believe range was overestimated. Freighter zigging to
right. Tried unsuccessfully to bring stern tube to bear.

WEAPONS EMPLOYED:
Own Torpedoes
Enemy Manned deck gun.

AMMUNITION EXPENDED two torpedoes

EVASIVE TACTICS EMPLOYED:
Own Rigged for silent running, went to 150 feet.
Enemy Maneuvered to escape, increased speed and headed away.

ENCLOSURE D(A)

CSPF-4-7-42-1000

— page 47 —
100 01

FOR TORPEDO ATTACK (Own):

Firing range 500 yds
Keel depth 64 ft
Straight/curved shot(s)
XXXX
Type spread 2° divergent spread, 40 sec. interval

TYPE ATTACK
(check)
Periscope
Periscope and TDC XX
Sound
Sound and TDC

Attack: (unopposed xxx
(opposed by air screen/close screen

Detected: (prior to firing
(after firing xxx
(undetected

RESULTS: (Certain) Miss.

(Estimated)

DAMAGE TO OWN SHIP None.

BRIEF REMARKS In this attack it is believed that the two torpedoes
passed under target running deep and with exploders probably unarmed,
due to short range. 1043K Patrol vessel sighted headed toward submar-
ine distance 2 miles. 1056K either bomb or depth charge was dropped;
estimated range 100 yds. Loud explosion heard and felt. Rigged ship
for depth charge attack and cleared area at 150 feet.

The officers and crew performed creditably at their battle
stations.

— page 48 —
[STAMP: DECLASSIFIED]
[STAMP: CONFIDENTIAL]

[HANDWRITTEN: Reg. No. 5985]
[HANDWRITTEN: S.S. No. 12 01633]
[HANDWRITTEN: B.S. No. ..... ***** .......]

[HANDWRITTEN: AS ORIGINAL]

U. S. SUBMARINE ACTION REPORT

U. S. S. [HANDWRITTEN: GUARDFISH] Date [HANDWRITTEN: October 19] 1942
Time [HANDWRITTEN: 1025] Location: Latitude [HANDWRITTEN: 27-32N]
Longitude [HANDWRITTEN: 127-24E]

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]
SEA CONDITIONS [HANDWRITTEN: Calm with moderate swell.]
SOUND CONDITIONS (if applicable) [HANDWRITTEN: Poor]
TYPE OF OPERATIONS [HANDWRITTEN: Submerged attack.]

[STAMP: COMMANDER U. S. SUBMARINE FLEET RECEIVED 1942 DEC 26 14 49]

SPECIFIC OBJECTIVE [HANDWRITTEN: To destroy.]

FORCES ENGAGED: OWN [HANDWRITTEN: U.S.S. GUARDFISH.]

(Name and Type) ENEMY [HANDWRITTEN: Japanese freighter similar to]
[HANDWRITTEN: Dakar Maru, 7200 tons.]
TYPE OF ATTACK (Own/Enemy—scratch one) [HANDWRITTEN: Submerged attack with torpedoes.]

BRIEF DESCRIPTION [HANDWRITTEN: 0530 Sighted smoke. Maneuvered to gain position ahead.
0920 Forced down by escorting planes. 1025 Fired four torpedoes; range
1600 yds, track 95S; 2° spread. No hits. 1029 fired two torpedoes, 130S
track, range 2000 yards.]

WEAPONS EMPLOYED:
Own [HANDWRITTEN: Torpedoes]
Enemy [HANDWRITTEN: Depth charged by planes.]

AMMUNITION EXPENDED [HANDWRITTEN: 6 torpedoes.]

EVASIVE TACTICS EMPLOYED:
Own [HANDWRITTEN: Submerged to 200 feet]
Enemy [HANDWRITTEN: None.]

ENCLOSURE D

163—USS Fulton—5-18-42—1M

— page 49 —
J 1123-1939

FOR TORPEDO ATTACK (Own):
Firing range 1600-2000 yards
Keel depth 63 feet.
Straight/circular run straight
Type spread 2° divergent
Attack: (check) xxxxxxx
(check) (opposed by air screen) xxxxxxxxx
Detected: (check) xxxxxxxxx
(check) (prior to firing) xxxxxxxxx
(check) (after firing) xxxxxxxxx

RESULTS: (Certain)

(Estimated) One hit on second salvo. Large flash was seen at
bow of target together with sound of explosion.

DAMAGE TO OWN SHIP Minor damages from depth charge attack.

BRIEF REMARKS: No reason can be given for the failure of this attack.
The target had been tracked for nearly an hour using the TDC. The bearings
checked nicely, and it looked like a perfect set up. After attack made
reload and surfaced to gain position for another attack, but was again
forced down by planes at 1310. Plane dropped two depth charges very close.
The explosions were intense and the vessel was so badly shaken that depth
control was lost for a few minutes. During the critical period the ship's
company performed their duties calmly yet with alertness, thereby dis-
playing in the face of grave peril, a type of silent bravery of which the
service may well be proud.

TYPE ATTACK
(check)
Periscope xx
Periscope and TDC
Sound
Sound and TDC

— page 50 —
12 01633
CONFIDENTIAL
U. S. SUBMARINE ACTION REPORT
U. S. S. GUARDPIH Date October 21 1942
Time 1357 Location: Latitude 27-03N
Longitude 122-42E
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
SEA CONDITIONS Moderate swell.
SOUND CONDITIONS (if applicable) Poor
TYPE OF OPERATIONS Submerged attack.

SPECIFIC OBJECTIVE To destroy.

FORCES ENGAGED: OWN U.S.S. GUARDFISH

(Name and Type) ENEMY Japanese Freighter, similar to
Katoku Maru, 6700 tons.
TYPE OF ATTACK (Own/[HANDWRITTEN: Enemy]—scratch one) Submerged attack with torpedoes.

BRIEF DESCRIPTION 0910 sighted smoke while patrolling on surface, proceeded
to gain position ahead. 1045 Submerged. 1357 Fired 4 torpedoes at lead-
ing four ships which were close together. Range 3500 yds, track 100S.
Two hits on freighter.
WEAPONS EMPLOYED:
Own Torpedoes
Enemy Gun fire.

AMMUNITION EXPENDED 4 torpedoes.

EVASIVE TACTICS EMPLOYED:
Own None
Enemy None

163—USS Fulton—5-18-42—1M.
ENCLOSURE D
[STAMP: COMMANDER IN CHIEF U.S. FLEET RECEIVED 1942 DEC 26 14 49]

— page 51 —
[HANDWRITTEN: 7]

FOR TORPEDO ATTACK (Own):
Firing range [HANDWRITTEN: 3500 yds]
Keel depth [HANDWRITTEN: 63 ft.]
Straight/~~curved~~ shot(s) [HANDWRITTEN: 2]
Type spread [HANDWRITTEN: Natural - no off-set.]
Attack: (unopposed) [HANDWRITTEN: X]
(check) [HANDWRITTEN: opposed by air screen/close screen X]
Detected: (prior to firing) [HANDWRITTEN: X]
(check) (after firing) [HANDWRITTEN: undetected X]

TYPE ATTACK
Periscope [HANDWRITTEN: XXX]
Periscope and TDC [HANDWRITTEN: X]
Sound
Sound and TDC

RESULTS: (Certain) [HANDWRITTEN: Japanese freighter similar to Katoku Maru,]
[HANDWRITTEN: 5700 tons observed to sink.]
(Estimated)

DAMAGE TO OWN SHIP [HANDWRITTEN: None.]

BRIEF REMARKS:
[HANDWRITTEN: Attack was on a convoy of 7 ships. After sinking this]
[HANDWRITTEN: ship convoy dispersed. Attack was made on another vessel of convoy]
[HANDWRITTEN: which is recorded in attack #3.]

The performance of the officers and crew on attacks #2 and #3 was
all that any commanding officer could desire.

— page 52 —
CONFIDENTIAL
[STAMP: 12 01633]

U. S. SUBMARINE ACTION REPORT
U. S. S. GUARDFISH
Time 1417
Date October 21
Location: Latitude 27-05N
Longitude 122-42E
1942

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
SEA CONDITIONS Moderate swell.
SOUND CONDITIONS (if applicable) Poor.
TYPE OF OPERATIONS Submerged attack

SPECIFIC OBJECTIVE To destroy.

FORCES ENGAGED: OWN U.S.S. GUARDFISH

(Name and Type) ENEMY Japanese tanker similar to Eiyo Maru, 8700 tons

TYPE OF ATTACK (Own/[HANDWRITTEN: Enemy]—scratch one) Submerged attack with torpedoes.

BRIEF DESCRIPTION After attack number two commenced approach on tanker
in same convoy. 1417 Fired three torpedoes Range 1000 yds, 100P track.
One hit.

WEAPONS EMPLOYED:
Own Torpedoes
Enemy Gun fire.
AMMUNITION EXPENDED 3 torpedoes

EVASIVE TACTICS EMPLOYED:
Own None
Enemy Maneuvered to avoid.

ENCLOSURE D
[STAMP: COMMANDER
U.S. SUBMARINE
FORCES
RECEIVED
1942 DEC 26
14 49]

163—USS Fulton—5-18-42—1M.

— page 54 —
[CONFIDENTIAL: ILLEGIBLE]
DECLASSIFIED
(beyoiqma coitori svianvil
U. S. SUBMARINE ACTION REPORT
U. S. S. GUARDFISH
Time 0600L
Jeet 088 Jaau
Date: January 22, 194 3
Location: Latitude 3-55S
Longitude 152-07E
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 0.6 overcast, visibility 9,000 yards.
Sea conditions Calm
Sound conditions (if applicable) Poor to fair
Type of operations Offensive Patrol.
Specific objective Attack and destroy enemy vessels
Forces engaged: Own U.S.S. GUARDFISH
(Name and Type) Enemy One freighter passenger (ARIMASAN MARU) and 1 PC
Type of attack (own/enemy-scratch one) Torpedo
Brief description Enemy sighted in moonlight before dawn. Approach [UNCLEAR: toloord]
was made submerged in dim moonlight.
(sms)
Weapons employed:
vd tosinoo Initini obam
Batau se Own Mk. XIV Mod 3 Torpedoes
qu-dae Enemy Depth Charges
Ammunition expended 4 Mk XIV Mod 3 Torpedoes.

— page 55 —
CONFIDENTIAL

Evasive tactics employed:
Own
Enemy Silent running at 250 feet

For Torpedo Attack (Own):
Firing range 2800 Yds to AP (3 torpedoes)
Firing range 1000 Yds to PC (1 torpedo) Type Attack
                                        (check)
Keel depth 65 feet                      Periscope

[CROSSED OUT: Straight]/curved shot(s)  Periscope and TDC
Type spread Divergent 2°                Sound

Attack: (check) (unopposed
                (opposed by [CROSSED OUT: xx escort] close screen Sound and TDC

Detection: (check) (prior to firing
                (after firing XX
                (undetected

Results: (Certain) Destruction of AP - missed the PC.

(Estimated) --

Damage to own ship None

Lookout (s) or special equipment detector operator(s):

                                        (Name)          (Rate)          (ServiceNo.)

made initial contact by
(sound)         (radar),        (SMSD),         (MAD),          (Sight)

Brief Remarks The target zig-zagged 60° each side of base course using
a constant helm. The attack was made in dim moonlight. The set-up
on the escort vessel was made quickly and the torpedo missed due
to probable errors in range and speed.

— page 56 —
CONFIDENTIAL
194 3

U. S. SUBMARINE ACTION REPORT

U. S. S. GUARDFISH Date: January 23, 1943
Time 1757L Location: Latitude 2-47S
Longitude 150-38E

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 the space for which no data is available.
(c) Draw a circle around the appropriate entry in this report wherever suitable.

Weather conditions 0.2 overcast, visibility unlimited.
Sea conditions Calm
Sound conditions (if applicable) No results from sound.
Type of operations Offensive patrol
Specific objective Attack and destroy enemy vessels
Forces engaged: Own U.S.S. GUARDFISH
(Name and Type) Enemy DD (ASASHIO type)
Type of attack (own/~~enemy~~—scratch one) Torpedo
Brief description Periscope attack against zigzagging target.

Weapons employed:
Own Mk XIV Mod 3 Torpedoes
Enemy ---
Ammunition expended 3 Mk XIV Mod 3 Torpedoes

— page 57 —
CONFIDENTIAL

Evasive tactics employed:
Own [HANDWRITTEN: ---]
Enemy [HANDWRITTEN: Quick change of course away]

For Torpedo Attack (Own):
Firing range [HANDWRITTEN: 1600] yards Type Attack
(check)
Keel depth [HANDWRITTEN: 65] feet Periscope
Straight /curved shot(s) Periscope and TDC [HANDWRITTEN: xx]
Type spread [HANDWRITTEN: 2° Divergent] Sound

Attack: (unopposed [HANDWRITTEN: xx])
(check) (opposed by air screen/close screen [HANDWRITTEN: Sound and TDC])

Detected: (prior to firing [HANDWRITTEN: xx])
(check) (after firing [HANDWRITTEN: xx])
(undetected [HANDWRITTEN: xx])

Results: (Certain) [HANDWRITTEN: Destruction of enemy vessel.]
(Estimated) [HANDWRITTEN: ---]

Damage to own ship [HANDWRITTEN: None]

Lookout (s) or special equipment detector operator(s):
(Name) (Rate) (ServiceNo.)
made initial contact by [HANDWRITTEN: ---]
(sound) (radar), (SMSD), (MAD), (Sight)

Brief Remarks Approximately one minute after torpedo explosion a
heavy series of explosions was heard from vicinity of sinking
vessel and the destroyer was observed to capsize, break in [HANDWRITTEN: two]
[HANDWRITTEN: and sink.]

— page 58 —
SS217/A4/H1-17
Serial 004

[STAMP: SECRET]
[STAMP: DECLASSIFIED]

From: Commanding Officer.
To : Commander Task Force THIRTY ONE.

Subject: Operations October 25-28, 1943 - Report of.

Enclosure: (A) Army Air Force Chart No. 7 showing Ship's
Track and Soundings.

1. Enclosure (A) is forwarded herewith as a record
of the movements of this ship October 27-28, 1943.

2. Departed Tulagi Harbor at 1300, 25 October, 1943,
escorted by U.S.S. DORSEY. Passed north of Savo Island and
south of Russel Islands. Released escort at dark. Passed
south of Rendova Island and dove at dawn. During day en-
countered a 1.5 knot current direction 135° T, which caused
the ship to be 20 miles behind position upon surfacing at
dark. Approached Cape Torokina, West Coast Bougainville
Island, on course 000° T, along longitude 154°-58' E, arriving
off Cape Torokina at dawn. Submerged and proceeded directly
to Atsinima Bay, arriving at 1000 L. Sat on bottom until
dark; surfaced and disembarked First Party, the last boat leaving
the ship at 2020 L. Remained in position until 2100 L, to ascer-
tain that party reached shore safely. Then headed north arriving
off Kiviki River at 2345 L, where it was planned to disembark
Second Party. A fire was noted burning in vicinity of Sipai
Mission, so sent a boat of natives ashore to reconnoiter. They
reported the landing could be made safely as planned. At 0248 L,
28 October, the Second Party disembarked, the GUARDFISH remain-
ing in area until 0325 L, to cover landing, then departing to
carry out survey mission until 2400 L, at which time headed for
port.

3. The following was determined:

(a) The third edition of Army Air Force Chart No. 7
is in error with respect to coordinates of vital landmarks
and configuration of coast line. It could not be used for
navigational purposes.

(b) The second edition of this chart is accurate
enough to be used for navigational purposes, as was reported
on September 29, 1943.

- 1 - [HANDWRITTEN: Original]
U.S.S. GUARDFISH
FPO
c/o Fleet Post Office,
San Francisco, Calif.
November 3, 1943.

— page 59 —
SS217/A4/HL-17 U.S.S. GUARDFISH Fry
Serial 004 c/o Fleet Post Office,
San Francisco, Calif.
November 3, 1943.
S-E-C-R-E-T

Subject: Operations October 25-28, 1943 - Report of

— page 60 —
SS217/A4/H1-17
Serial 004
S-E-C-R-E-T
Subject:

U.S.S. GUARDFISH

[HANDWRITTEN: #OM7-43]
Fry
[HANDWRITTEN: off106701/]
c/o Fleet Post Office,
San Francisco, Calif.,
November 3, 1945.
[STAMP: RECEIVED
-3--NOV 1943]
Operations October 25-28, 1943 - Report of.

(1) It was noted that a 1000 yard section of the
beach, as reported by despatch, did not appear suitable
for landing boat operations because of the steep bank
which appeared to terminate at the waters edge. A study
of the pictures available on board appeared to verify
this visual examination.

(j) No beach activity was noted either day.

(k) A flashlight was seen in vicinity of Laruma
River entrance, which, when coupled with previous reports,
indicates location of a sentry post.

(1) No enemy air activity noted, but there were con-
tacts with own planes in this area.

(m) No shipping sighted.

(n) No mine fields indicated this area.

4. One conclusion arrived at, is that high speed
maneuvering in this area, inside the 100 fathom curve, will be
dangerous until a complete survey can be completed. The shoal
spots are small and steep-to, with no advance warning from
soundings when approaching them.

N. G. WARD.

Copy to:
CTF-72.

— page 61 —
SS217/Lll/gn
Serial 009
DECLASSHIED
From:
To
Via:
:
U. S. S. GUARDFISH (SS 217)
The Commanding Officer.
Fleet Post Office,
San Francisco, California
11 December 1943.
The Commander-in-Chief, United States Fleet.
The Commander, Task Force SEVENTY TWO.
(1)
(2)
(3)
The Commander Service Force, SEVENTH FLEET.
The Commander, SEVENTH FLEET.
1 146
Subject:
Damage sustained by U.S.S. GUARDFISH in collision
with U. S. Army Y-20 at 2355 L, 3 December 1943 in
position Lat. 26-45S, Long 154-30.5E.
Reference:
(a) Cominch despatch 052215 of January 1943.
(b) Com-7th Flt Conf. Ltr. 2CL-43.
1.
In accordance with references (a) and (b), the follow-
ing information is forwarded herewith.
1
2.
Details of damage sustained by U.S.S. GUARDFISH:--
A. HULL.
1. Number 6A ballast tank ruptured vertically from tank top to
top of A strake.
2.
Bulkhead between 6A and 6C ballast tanks crushed and ruptured.
3. Pressure hull dished in approximately 2" about 1 foot either
side of frame 85 at the maximum diameter of the hull.
4.
4' section of frame 83 twisted.
5.
7 transverse stiffeners at frame 85 twisted.
6.
1 transverse stiffener at frame 83 bent.
7. Longitudinal stiffeners, B and C, broken at frame 85.
8.
6A emergency vent valve seat distorted.
9. Brackets and braces which supported damaged piping broken and
1.
2.
twisted.
B.
PIPING.
2 sections of salt water discharge line and elbow to number
1 main engine muffler distorted.
Salt water bypass valve to number 1 main engine muffler dis-
torted.
-1-
٦

— page 66 —
30  3

SUBMARINE FORCE, PACIFIC FLEET

FB5-42/A16-3 Commander Task Group 17.16,

P. Q0? Care of Fleet:Post Offi ..

Serial: 058 San Francisco, California,

23 August 1944.

DGNTAACHSE

From:\ Camander Task Group 17. l6
To:\ The Cnmander..i

Via:\ The Commander in Chief, United States Fleet.:

(1) Commander Submarine Squadron FOUR.

(2) Commander Submarine Force, Pacific Fleet.

(3) Commander in Chief, Pacific Fleet.

Subject: War Patrol of Coordinated Attack Group 17.16

from 14 June 1944 to 1 August 1944.

References: (e) Report of War Patrol No. 8, USS GUARD FISH.

(b) Report of War Patrol No. 15, USS THRESHER.

(c) Report of War Patrol No. 1, USS TIRANHIM.
(d) Report of War Patrol No. 4, USS APOIOON.

Enclosures: (A) Group CommanderS Report of War Patrol.

(B) Operations enroute Midway.

(c) Organisation Decorina in Area.

(D) Command Election Plan.

The group Commander's Report of War Patrol is

herewith submitted. This task group.

— page 70 —
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— page 81 —
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The Commandeur Submarine Force, PaCific Fleet.

$by: Poe~140TIO4 His[4 See., mCll(ile .6. Pacific Fleet.

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— page 82 —
8. — FF12-10/A16-3(15)/(16) SUBMARINE FORCE, PACIFIC FLEET

Serial 01986

Care of Fleet Post Office ;

San Francisco, California,

CAOS000025000000 9. — Assure Date : 15 September 1944. FR RF-. — Venkation

FIRST ENDORSEMENT to NOTE: THIS REPORT WILL BE

Patrol Report of Seventh Ray , LATE UNEXPECTEDkPRO: RA OFFICE.

Consolidated Attack Group. ENTERING PATROL AREA.

.

Subject : — -  — «

. tArt. 14 (14 June to 1/August 1944). 2 and 3)

. «o

1 - Large AK (EU)

1 - 10,000 tons : * SROSE (d

t« stv

'L2. — Large AK (EU) 10: k» a 1 : O«|

« «4 Large AK (EAUAI M||

* — EBe>>aksa

3 tans (GHQR6GO O) T><-3) :

← 1 - > • .

>3 — ·

r > 1 -  Large AK : .. MAU Type (EC) —){

g«—«- k-. k

;»'t — Show )

— FICE 1): !

sted

1 - Large AK (A.K.GUTefl

1 - 1 - GURDRFISH Attack No.》，]

1 - Medium AK 5,800 tons (GUARDFISH Attack No.1 + drut m..)

1 - Medium AK i N ; GAD… A, Mouth (CUURFISH Attack NoCOL)

. (— (—3||).

1 - Medium AK 5,800 ton-. Easto> nav)]. « UM [— —

GUDAPSII Attack No.2>

1 - Large AK (ATAGO NSS ?#Z) —• t SA EQU…: "r).

eent

1 - Naval aax. (.YOTOSANr V Bott> os 5,800 tonNMAU Type ) —){ POU Amus omts (GUARDFISH Attack wfdlbt, CH nov,)

1 — TOTALSUNK 77100 tons :

(EC)

1 — Large AK (HOEISAN MRAWType ) —{ Required (GUARYDFISH KN it,

(EO,

B抹x,6,100 tons (GHUARTFISH Attack No,and

Total DANNED 10,700 tons:

” Cra »-.« ” | )

! - Large AK = 7,500 tons J pushed by : cfrk. Village.)

1big—If LOSUNK TDMAGE 7 TWO e:;

1 = ASZ — —

▲- Injection较多的

LOL t detectors) that

MCUOUS 1. Dist receipt : +bugs a> ea ra rd (AG

. Tzakuez.on)

GREETING — z102_ see 0006

Jilkab 0edot on this only (to return

1 — Medium AK $(UN) — TULL T* mintion : — ?

— — ( to an accost of

Y; t — Order of! r|§

— page 84 —
1 X"f'Z j-. 1-J 0 XS

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lara; .oo SanFran Diego, C? oifornia,

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— page 85 —
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.Via: 1. Sumarue HICHNESS.
Forwarded.

— page 87 —
END OF REEL

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