U.S.S. NARWHAL (SS-167) — war patrol report SS-167_NARWHAL_Part1.pdf

— page 23 —
CONFIDENTIAL U.S.S. NARWHAL (SS167) REPORT OF 2nd WAR FATROL

February 16 - Dove in position estinted apout nine miles
south of island and turned toward island with view to being
within easy visual distance at daylight. At first look is-
land was dead ahead about 3000 yaris. That was too close for
comfort. We had not gotten the set during the night that we
had experienced during the day. It emphasized the very ser-
ious problem of navigating around darkened atolls and the need
for extreme caution.
Reconnoitered the south coast, the lagoon area and the
north coast to past the contractors camp. Again took photo-
graphs through periscope which were 100% failure. These pictures
were taken from about 4000 yards offshore. The seaplane hangar
was seen to have been gutted by fire. No repairs had been
made nor were in progress. No nen could be seen on the beaches.
Tanks and buildings have not been camouflaged and stand out
brilliantly in their whi and aluminum paint. They should
make conspicuous targets a moonlight night.
1500 Love sighted two planes range about 4000 yards alti-
tude about 4000 feet. They appeared to be Type 93 LIBM bi-
planes and to be conducting training exercises over the island.
Did not have time to take a long look as one of the planes
turned 50ward us and went deep. Came up an hour later and
no planes were in st These flanes were the only evidence
of aviation activity seen. No other planes were sighted al-
though the lagoon and flying field areas were closely watched
for planes taking off on or flying in fron patrols.
There were no indictions that air, surface or submerged
patrols were being maintained.
Whatever the Japanese intentions may be regarding
development projects, it is certain that they are not yet
pressing forward with above ground construction or lagoon
development projects. No work on defenses along the beaches
was observed. Except for the two planes and two small boats
the whole place looked deserted.
Decision was made to leave the area tonight. In view of
the lack of contacts and the air of inactivity which gave no
promise of any, it seemed no useful purpose would be served
by remaining longer.
Upon surfacing departed for area distant 1830 miles
the whole length of the route to which lies within 500 miles
of enemy air bases.
2310 Love reported departure and Wake observations to
CTF-7. No interference with transmission.

February 17 - Decision was made to dive during part of
this day when air search due to our DF'd transmission of last
night was probable.
1700 Love surfaced 1.60 miles from Wake and proceeded on
surface. This seemed safe in view of our knowledge that long
range air patrols were not being flown out of Wake and the im-
probability that search by small planes would be continued at
this distance later than this hour.
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ENCLOSURE (A)

— page 24 —
CONFIDENTIAL U.S.S. NARWHAL (SS167) REFORT OF 2nd WAR PATROL

February 18 - At daylight ship was about 300 miles from
Wake and 500 miles from Marcus. Decided to run on surface.
Day uneventful.
February 19 - At daylight ship was about 240 miles from
Marcus. Ran submerged during day. Wind and seas built up from
NW during day. Ship bucking head winds and seas during night.
February 20 - Uneventful. Head winds and seas.
Februa
February 21 - Uneventful. No planes, ships nor sampans
were sighted during passage through Marcus Island area. Head
winds and seas slowed ship to 8.2 knots during night while mak-
ing turns for 1l.

February 22 - At dawn we were 190 miles fron Harous and
500 miles from Chichi Jimm. Decided to run this day on surface.
Winds and seas abated. Day uneventful.
February 23 - Upon surfacing in evening rough seas had
built up Tron southwest and ship bucked through them during
night averaging only 6.7 knots for night's run.

February 24 - During early evening weather changed from
moderate to stormy getting progressively worse.

February 25 - At 0230 King slowed to one engine speed
to reduce pounding into heavy seas. By now the wind had reached
the force of a moderate gale with intermittent rain storms and
lightning. In the driving stray and rain lockout's binoculars
wore useless and it was difficult to keep any kind of lookout
facing the wind.
At daybreak ship dived in mountainous seas due to which
it was impossible to make customary half hourly periscope
observations. By nichtfall sea conditions had noderated to
heavy swells with little wind.
At 1930 Inter, in Latitude 29°-00'N Longitude 141°-55'E
a blinker signal light was sighted about 1200 yards on the
port beam, Two bright distinct flashes were made on this light
in our direction. The hull of the ship from which the flashes
were made could not be seen. It was moonlight with the moon
obscured by cloud but the visibility was good. It was judged
that the vessel making the flashes must be either a submarine
trimmed down or a small Jatrol boat. Hard right rudder was
given to throw the stern toward the spot where the light was
flashed and a crash dive was made to 120 feet to insure being
below torpedo depth. No torpedoes were heard by sound and after
ship had squared away at 120 feet and slowed, no screws could
be heard. Later screw noises were picked up and analyzed as
the screw of a small boat which was maintaining a steady true
bearing. Course was changed gradually to throw him astern,

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— page 25 —
CONFIDENTIAL U.3.J. NARUHAL (SS167) REPORT OF 2nd WAR PATROL
all except essential machinery was stopped, ship was run on
one motor stopping intermittently as long as denth could be
maintained. Gradually the true bearing of the screw noises
drew to westward and became faint. At this point the ship
was surface (at 2050 Inter) and retired at high speed grad-
ually circling back to westward in a long sweep to southward.
Nothing more was seen nor heard of the other vessel. It is be-
lieved that the boat encountered was probably a patrol sampan.
From the position of this encounter it appears that the Jap-
anese may be patrolling the passes between the eastem chain of
islands with small patrol sampans.
The most unpleasant feature of the encounter was the know-
ledge that the other fellow was sitting there seeing us while
we could not pick up his hull even after he had disclosed his
presence by flashing his light.
-
February 26 - 1845 Inter received CTF-7 desmatch inforn-
ing that enemy carrier had left Palau for Yokosuka on the 24th.
NARWHAL was then about sixty miles east of great circle track
between these points and forty miles east of great circle track
from Yap to Yokosuka. For nost probable cruising speed, around
13 knots, it appeared that carrier would cross our track during
daylight of 27th. Decision was made to spend the day of the
27th patrolling the area whore the great circle course from
Palau crossed NARWHAL's track. Speed was adjusted to dive at
this intersection at dawn. The night's travel would thus cover
points of probable intersection at speeds higher than 18 knots
and deviations from the great circle course to eastward.
February 27 - Patrolled area of intersection at periscope
depth on West-East courses. No contacts. It had been plan-
ned to spend the night patrolling the area until 0400 Inter to
cover tires of carrier denarture as late as 1600 on 24th at
speeds down to 15 knots. However, upon surfacing the sky
was completely overcast as it had been in the morn'ne so that
last fix was twenty-four hours old and we had no definite know-
ledge of our position in relation to the intersection. Decision
was made to proceed to the westward slowly for two hours and
then continue to westward at normal night cruising speed.
2340 Inter sighted vessel on port bean on northerly course
range about 6000-8000 yards. Turned to place ship ahead and
dived to make periscope attack because of moonlight. Vessel
picked up at about 3000 yards through the periscope and recog-
nized to be a tanker of about 7000 tons.
-
February 28 - 0008 Inter, attack No. 1, Latitude 28°-55'N
Longitude 138°-15'E, fired two torpedoes on estimated 90° track
at estimated range of 1000 yards, target speed estimated 8
knots. Two heavy explosions and a sharp crack were heard. Ship
was seen to settle and take heavy list and considered to be
in sinking condition. Blued lights were seen at waters edge
near bow and stern and thought to be from boats being lowered.
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ENCLOSURE (A)

— page 26 —
CONFIDENTIAL U.3.S. NARWHAL (SS167) REPORT OF 2nd WAR PATROL
When well clear surfaced and continued to westward.
Approach and firing had to be conducted by eye estinate
alone because conning tower had to be kept completely black in
order to see through the periscope and no lights could be turned
on for torpedo control purposes. A trial hood arrangement is
being made to shield periscope from light.
March 1 0600 Inter arrived northeast sector area
Commenced patrol in assigned area.
--.
A logistic estimate at this time gives following results:
a. Distance run Midway to area
b. Fuel used Midway to area
c. Fuel rate for trip 48062
2074
d. Allow 2500 gallons for Wake patrol
43562
2374
-
e. Fuel required for trip home 3770x15.9
f. 10% emergency reserve
2874 miles
48, 062 gallons
-
16.7 gals. per mile
-
15.9 gals. per mile
- 59,943 gallons.
13,000 gallons
84,888 gallons
11, 945 gallons
20 days
g. Mininum fuel on board on departure area - 72,943 gallons.
h. Fuel on board arrival area
i. Fuel available use in area
j. Estimated time for return trip
k. Depart N.E. corncı area
--
-
early morning 10 March
1. Time on station 9 days and nights
m. Fuel rate on station 11,945
Conclusions:
11,945
-
1,327 Gals. per day.
1. Fuel available limits patrol speed to one engine prop-
ulsion at night.
2. Running on one engine at night limits westerly advance
in area to the region of the Nansei Shoto.
Decision was made to patrol on westerly course directly to
area North and West of Amami O Shima where prospects of encount-
ering targets seem brightest.
After surfacing weather became progressively worse with
high winds and seas from S..
and conning tower hatch.
Took seas down both main induction
March 2 Rough, rainy and lightning. During nicht wind
and sea shifted fron 3ST to NI.
-
March 3 At 0230 Inter a heavy sulphurous smell was borne
down wind from N.W. Ship's positon by D.R. was then latitude
28°-50'N Longitude 1310-40′E. This is 115 miles southeast of
Suwanose Shima which is described as an active volcano in the
Asiatic Pilot. Some uneasiness was felt for the ship's posi-
tion since due to continuously overcast weather no fix has
been obtained since 0410 Inter on 1 March.
to southwest to insure keeping in our area.
Course was changed
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ENCLOSURE (A)

— page 27 —
CONFIDENTIAL U.S.S. NARWHAL (38167) REPORT OF 2nd WAR PATROL.
About 0300 Inter the C equipment failed. Radio personnel
effected repairs and had the set back in commission at about
2100 Inter.
At 0800 it was 52 hours since last fix due to continuously
heavy overcast weather and ship has been dependent solely
uron D.R. since fathometer is our of commission. Position
is doubtful as past sets have been variable.
After surfacing a star fix was obtained, the first in 63
hours. The ship was 30 miles northeast of its D.R. position. It
was fortunate indeed to have a clear night tonight to make
run past the northern end of Amami O Shima.

March 4 - Dived in position 27 miles north of Amami and
proceeded westward submerged to patrol area about midway be-
tween Amami and the Tokai Gunto.
At 0910 Inter sighted usehi Juna and Takara Jima.
At 0945 Inter sightekoate Shima. The above islands
rise high above water and make excellent navigational land
marks.
At 0950 sighted smoke and masts of steamer in position
Latitude 29°-05'N, Longitude 129°-34'E, course 200°T. Commenced
approaci. Upon reducing range steamer was seen to be small
coal burning coascanner estimated 1500 tons. Speed was
estimated by plot to be 5 knots. Decided not to disclose
presence the first day in this area by attacking such a small
target. Broke off approach at 5000 yards. Steamer was obvious-
ly heading for Naze Ko.
All navigational lights on Amami O Shima were blacked out
and no lights could be seen on shore.
At 2316 Inter sighted steamer, range about 8000 yards,
estimated course 020°. We were about 200 on his port bow.
Moonlight with overcast sky cave good visibility. Dived for
periscope attack. Ran in on 90° track. Target picked up through
periscope at about 5000 yards and recognized to be a freighter
of about 5000 tons. At 2340, attack No. 2, Latitude 28°-37'N,
Longitude 129°-10'E, fired longitudinal spread of four torpedoes.
Two explosions heard 35 seconds after firing. Shin settled
immediately by the bow. At 2354 ship was observed to sink
through periscope. At 2356 surfaced and cleared area to west-
ward.

March 5 - 0012 'sighted YokoateShima to westward. Decision
was made to continue to westward and patrol area to westward of
Yokoate Shima in eastern edge of Kuroshio (Japan Current) to
look for north bound traffic.
At 0530 dived in Latitude 28°-45'N, Longitude 128°-10'E
and commenced submerged patrol. This position will be the
high water mark of our advance into the East China Sea due to
fuel limitations.
i
Day, uneventful. No shirs sighted.

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ENCLOSURE (A)

— page 28 —
CONFIDENTIAL U.S.J. NARWHAL (SS167) REPORT OF 2nd WAR PATROL
After surfacing proceeded to patrol area between Tori
Shima and Tokuna Shima during night. This area covered the same
routes as the steamer we sank last night was travelling about
sixty miles to the southward.
At 2348 sighted what appeared to be two destroyers patioll-
ing in Latituce 27°-50°N, Longitude 128°-25'E. Cleared to south-
westward and southward and continued patrol to eastward. At
the time of sighting the two destroyers were close together.
While in sight they parted company one going to westward and the
other to eastward. No further contact was made with either of
them. Their shapes were too indistinct to determine their type.

March 6 - At 0327 sighted lights on the beach of Tokuna
Shima. This island was not blacked out.
At 0518 dived in position Latitude 27°-41'W, Longitude
128°-37'E. Since there quered to be no streans of traffic to
westward of the islands, decision was made to run submerged
through passage between Tekuna Shima and Okinoerabu Shina and
patrol routes to eastward of the islands. The passage was made
uneventfully. No ships nor fishing sampans were sighted. The
sea was calm and periscope observation was efficient. The absence
of fishing sampane in this whole area has been surprising.
While running man the islands the sound equipment
picked up an odd assoran at of noises. These noises varied be-
tween grunts, squeals, cracking noises and noises that resembled
propeller boats. Some of the noises may have omanated from the
telegraph cable that runs between the islands on the eastern
side of the passage but the noises were no more marked there
than on the western side.
Patrolled to castward of islands curing rest of day and
night with no success.

March 7 - Dived in position Latitude 25°-57'N, Longitude
129°-55'E to patrol routes east of Kikai Shima.
At 1006 Inter sighted Kikai Jira.
At 1402 Inter changed course to 090°T starting return to
eastward. The Area around Amami O Shima has turned out to be
not very fruitful hunting grounds. Shipping traffic in any
cuantity is obviously not being routed along this island arca.

March 7 and 8 - Uneventful. Fatrolling arec slowly to
castwarά.

March 9 - 0251 Inter moderate sea. Moonlight with moon
covered by heavy overcast. Good visibility except in direction
of squall areas in various places around horizon. A black
squall area was located to northward and northwestward. Our
course 062°т. At this moment two destroyers were sighted emerg-
ing from the squall area to northward bearing two points forward
of our port beam and we were about 10 on the starboard bow of
the nearest destroyer whose range was estimated to be about
5000 yards. Attempt was made to evade on surface by swinging
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ENCLOSURE (A)

— page 29 —
CONFIDENTIAL U.S.S. NARWHAL (SS167) REPORT OF 2nd WAR PATROL
to right but destroyers were approaching so rapidly that it
was necessary to dive at once to escape detection. Crash dive
was made. Rudder had to be taken off in order to get under.
As a result ship was running toward area directly ahead of the
enemy destroyers. Ship was running toward area directly ahead
of the enemy destroyers. Ship was rigged for depth charge
attack. As ship was trimmed heavy it dropped below periscope
depth and it was necessary to run at high speed and pump out
with main drain while getting a trim. It seemed certain that
we would be heard. Upon getting trim ship was brought back
to periscope depth so that periscope could be used in evasive
tactics and counter attack. Upon raising periscope one des-
troyer was sighted immediately about 3000 yards range and
we were slightly on his port bow. The other destroyer could not
be seen but is was believed that we were in between them. The
one in sight passed quickly across our stern at a range of about
900 yards and apparently had not detected our presence. The
other destroyer still could not be seen. While sweeping for
her a carrier loomed into periscope vision out of the squally
back ground to westward at range estimated between 3000-4000
yards. The carrier's relative bearing was 192° and she was cros-
sing astern. Her estimated speed was 15 knots based upon the pre-
vious estimate of the destroyer's speed, estimated track
angle was 90° although it was impossible to estimate angle on the
bow with any degree of accuracy. Hard left rudder was given
to swing ship to give necessary firing angle lead for straight
shot. Ship would not swing fast enough so torpedoes in stern
tubes were angled 30°-40°left respectively. 0316 Inter, attack
No. 3, Latitude 28°-43'N, Longitude 133°-00'E, fired two after
torpedoes at enemy carrier. No explosions heard results believed
negative. It is believed the torpedoes missed astern as a
turn count obtained later by sound and based upon cruiser RPM
data gave a speed of 17 knots while we used the 15 knot estimate.
It was a rapid fire estimate set up imposed by time and cir-
cumstances. At the time the destroyers were sighted the carrier
was hidden in the rain squall astern of them. The second des-
troyer was never sighted after diving. Upon reconstructing the
situation afterward it is believed that, while NARWHAL was diving
and below periscope depth, the enemy made a sharp zig to the right
and that the destroyer (starboard screen) which had been nearest
before diving ran past to the westward out of sight in the
black background in that quarter. The destroyer which was orig-
inally farthest to eastward (port screen) was apparently the
one that crossed our stern. That fateful zig combined with
poor visibility from the direction of approach which hid the
carrier initially imposed upon us the poor attack position we
occupied at the moment of sighting the carrier.
Relative to the carrier, the port screen was about 2000
yards to eastward and at least 4000 yards ahead and patrolling
her station. She carried a blued stern light mounted about
half way up on the main mast.
The destroyer that passed close was either an Anagiri or
Shinonome class.
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ENCLOSURE (A)

— page 30 —
CONFIDENTIAL U.S.S. NARWHAL (3S 167) REPORT OF 2nd WAR DA TROL
The carrier was thought to be a Soryu because of its
island.
The destroyers were not echo ranging. Evidently their
listening equipment is not very sensitive at the speed they
wore traveling for we made plenty of unavoidable noise within
5000 yards with high specă running and pumping curing diving and
trimming.
The enemy gave no evidence of knowing that torpedoes had
been fired at the carrier and no counter measures were taken.
It is possible that the torpedoes did not reach the carrier's
track. Range estimates through periscope at night are un-
reliable.
0355 Inter surfaced. Sent our contact report 081940 to
CTF-7 on 4235 kilocycles. Called three times without getting an
answer. Then broadcastce the report twice by TS nethod. 032013
sent contact report to Darwin on 8470 kilocycles. Called once
without getting an answer and then sent report twice by TZ
method.

March 10 - 0900 Inter arrived at departure point fron
area -- and started homeward. An estimate of fuel, time, and
distance or homeward trip follows:
a. Distance to Fearl - 3770 miles
b. Distance first leg (submerged
day surface night) - 1205 miles
c: Distance second leg all on surface.- 2565 miles
d. Time first leg at 120 miles day - 10 days
e. Time second leg at 264 miles day
(2/3 on both engines) - 10 days
f. Time available to reach destina-
:
tion on schedule - 20 days.
g. Fuel on board at departure - 73;853 Callons
h. Reserve - 13;000 gallons
i. Available less reserve - 60,853 gallons
j. Fuel rate allowable 60853
3770 -16.1 gal. per mile.

Conclusion: The fuel rate available is sufficient to
permit patrolling to eastward at slow speeds during first leg
and to make up time by higher speed running during second leg.
Tine on first leg may be reduced by some day surface rúnning
within 500 miles of enemy air bases if it appears wise.
Decision: To continue to patrol to eastward at slow
speed on first leg in order to remain in area of enemy traffic
routes to southward for a longer period of time and to meet
scheduled return date by higher speed running during second
leg.
2.
March 11, L, 12, 13, 14, and 15 - Uneventful. Fatrolled
slowly to eastward across steamer routes and through the
Southern Island chain. Nothing was sighted. By the night of
the 15th the steamer routes to the Easter Mandates had been
crossed. Speeded up to return to Pearl at maxinun reliable speed
within fuel limitation.
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ENCLOSURE (A)

— page 31 —
CONFIDENTIAL U.S.S. NARHAL (SS167) REPORT OF 2nd WAR PATROL

March 16 - At daylight we were 365 miles from Chici Jina
and 420 miles from Marcus. Ran on surface. Day uneventful.
No planes sighted.

March 17 - We were 270 miles from Marcus. Ran submerged
from 0700-1600 King, the hours during which planes scouting to
the 300 mile circle would be likely to make contact. Day unevent-
ful. Fuel was exhausted from No. 5 group fuel ballast tanks.
Tanks were washed out and placed in service as ballast tanks.
No planes or patrols were sighted in Marcus Island area.

March 18 - Circulating water leak developed around Grommet
under No. 9 cylinder head starboard main engine. High seas
on beam made it necessary to dive in order to lift cylinder
head with safety to renew grommets. At daylight dived and
at 1445 surfaced when engine repairs were completed.

March 19, 20, 21, 22, 23 (-12) - Uneventful. Ran on
surface. Made trim and training dives on 20th and 22nd. Calm
seas and pleasant cruising.

March 23(-12) - Ran submerged at periscope depth this
day inside 50 mile circle from Midway to avoid submarine menace.

March 24 - 0653 Yoko officer-of-the-deck made quick dive
upon sighting unidentified plane dead ahead at high altitude.
0725 Yoke surfaced prepared to send contact report to Midway.
Upon surfacing discovered that the supposed plane was in fact
the planet Venus which has been mistaken when seen through
rifts in the clouds for a silvery colored plane. Contact report
had not been sent before mistake was discovered. Fuel was ex-
hausted from No. 3 and 4 fuel ballast groups. Tanks were blown
and placed in service as ballast tanks. Fuel recovery from
entire fuel ballast group was an even 90%, the figure counted upon
in logistic estimates. No losses from leaks.

March 25 - 0609 Yoke sighted two PBY patrol planes, Latitude
25°-00'N, Longitude 171°-56'W on course 290°T. One plane
approached from a little to the north of the sun. The other
plane was observed to cross over to directly into the sun's
path and approached from directly in the sun. The ship dived,
fired emergency signal and went to deep submergence immediately.
After twenty minutes deep submergence came back to periscope
depth. Planes had passed out of sight and at 0648 Yoke sur-
faced and proceeded on course.

March 26 - 0953 Xray, latitude 23°-36'N, Longitude 167°-
43'W sighted PBY patrol plane about four miles to southeastward
on westerly course. Plane evidently recognized us as friendly
as he continued on his course without approaching. Ship fired
recogniation signal, hoisted colors and continued on surface.

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ENCLOSURE (A)

— page 32 —
CONFIDENTIAL U.S.S. NARWHAL (35167) ROFORT OF 2nd WAR PATROL
-
March 27 - 0740 Xray, Latitude 22°-07'N, Longitude 1630-
35'W sighted PBY patrol plane slightly on starbourd bow at
about four miles on westerly course. Plane crossed over to
port then approached from port bow and circled the ship.
Ship fired recognition signal, hoisted colors and continued on
course. Flane circled ship twice and made an aldis light
signal which was unreadable. Ship rigged searchlight and sent
"This is U.3.3. NARWHAL". It is doubtful if plane was able to
read this message as the ship was rolling and pitching naking
it very difficult to keep the light trained on. After circling
ship twice plane proceeded to westward.
1218 Xray sighted submarine on surface bearing 0110 relativo.
Later recognized as GAR on parallel course with HAR HAL over-
taking. Recognition signal was exchanged when within visual
distance.
2125 Xray sighted Kaula to northward.

March 28 - 0540 William Xray sighted 1200 ton destroyer
on horizon one point off starboard bow.. Exchanged recognition
signals. Destroyer was U.S.J. ELLIOT who reported for duty as
escort vessel at 0554 William Xray. Formoed column with CAR,
stationed ELLIOT about 2000 yards ahead with orders to patrol
her station and proced to Pearl Harbor zig-zagging.
Planes and surface patrols sighted enroute recognized us
as friendly by virtue of our escort and did not molest us.

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ENCLOSURE (A)
σ

— page 33 —
CONFIDENTIAL U.S.S. NARWHAL (SS167) REPORT OF 2nd WAR PATROL

2. WEATHER:
Pearl Harbor to Midway - Head winds and seas all the
way. Squally rain storms.
Midway to wake - Southwest winds force 3 for first
three days practically calm for next two days and then gentle
NE trade wind in wake Area with smooth sea.
Wake to Eastern Islands (Chichi Jima) - Good weather
most of way. One stormy night with rain. Head winds and seas
about 75% of way.
Southern Islands and Area - Sky heavily overcast al-
most constantly with rain and drizzle about 50% of time. Rain
storms were accompanied by lightning of the heat lightning type
at times.
Amami O Shima Area - Sky overcast almost constantly,
rain and thunder storms, wind varied between calms and strong
breezes and seas followed wind conditions. Changes of wind
directions and velocities occurred frequently with the wind
shifting direction rapidly, these changes were usually accom-
panied by a failing barometer. Hunting conditions at night
were ideal when it was not raining. The bright moon in an
overcast sky gave visibility conditions decidedly favorable to
a hunting submarine. During the day rough seas about 60% or
the time periscope observation inefficient.
Area to Marcus Island Area - Average weather condi-
tions. Sky heavily overcast each night with some rain squalls
but no steady rain storms. Sea conditions moderate with large
swells.
Marcus Island Area to Lisianski - Unusually calm seas
gentle and moderate breezes. Weather clear except for rain
squalls.
Lisianski to Pearl - Continuous strong trade winds
from NE by E with rough sea and high waves from same direction.

3. TIDAL INFORMATION (If Abnormal):
Pearl Harbor - Midway: Pilot chart shows favorable
set for first part of trip. Set was actually adverse all the
way, average 1.5 knots.

4. NAVIGATIONAL AIDS:
Lights on Kauai and Midway blacked out.
Wake completely blacked out. The only two reliable
navigational land marks on wake are the two high water tanks.
Tangents are too low to be reliable for periscope bearings
when submerged. One of these tanks is shown on enclosure (B)
of Comsubpac serial 217 of February 1, 1942. The other one is
located on the northwest tip of Wake Island in approximate
position Latitude 19°-18'-26"N, Longitude 166°-36'-07"W.
Navigational lights on Amami O Shima were blacked out
on night of 4-5 March.

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ENCLOSURE (A)

— page 34 —
CONFIDENTIAL
U.S.S. NARWHAL (SS167) - REPORT OF 2nd WAR PATROL.
5. DESCRIPTION OF ENEMY SHIPS:
Contact:
No. : Date : TIME : POSITION :COURSE : SPEED : DESCRIPTION
:
:
:
:
:
:
:
1 : 2/15/42: 0633:12 Miles N.E.: South- :6 kts. : Sampan with foremast with crow's
: Love: of Wake :erly :nest. No lookout was stationed
: : : :in crow's nest.
: : : : Apparently a small patrol boat
: : : : only blinking light could be
: : : :seen.
2 : 2/25/42 : 0930: Lat. 29-00 N :? : Tanker estimated about 7000 tons.
: : Inter: Long 141-55 E: : Compares with KIYO MARU silhou-
: : : :ette in book "Recognition of Jap-
: : : :anese Merchantmen" except had
: : : :higher bow...
3 : 2/27/42: 2340 : Lat 28-55 N :010 T :8 kts. : Tanker estimated 1500 tons. High
: : Inter:Long 138-15 E: : : Small coal burning coastal steam-
: : : :er.
4 : 3/4/42 : 0950 :Lat 29-05 N :200 T :9.5 kts.: Small coal burning coastal steam-
: : Inter: Long 129-34 E: : masts close together with high
: : : : stack amidships. High forecas-
: : : :tle and high poop which gave im-
: : : :pression of having been pushed
: : : :together. Painted gray.
5 : 3/4/42 : 2316 : Lat 28-37 N :020 T :12 kts. : Freighter estimated 5000 tons.
: : Inter: Long 129-10 E: :Bridge and stack amidships, Fore-
: : : : castle and poop decks style that
: : : : of Rokko Maru, photograph No. 02
: : : : in book "recognition of Jajanese
: : : :"Merchantmen" but believed to have
: : : :been longer
6 :3/5/42 : 2348 : Lat 27-58 N : 090 T : 6 kts. : Two DD apparently patrolling. Type
: : Inter: Long 128-25 E: 270 T : : not distinguished.
7 :3/9/42 : 0251 : Lat 28-43 N : 170 T :17 kts. : One enemy CV resembling SORYU class.
: : Inter: Long 133-00 E: : : 2 enemy DD either AMAGIRI or SHI-
: : : : NONOME Class.

-15-

ENCLOSURE (A)
CONFIDENTIAL

— page 36 —
CONFIDENTIAL
U.S.S. NARMAL (53167) - REPORT OF 2nd WAR PATROL.

CONFIDENTIAL
7. PARTICULARS OF ATTACKS:
Attack:Torps.: Firing : Point of
No. : Fired : Interval: Aim
: Track: Depth : Est. : Est..
:Angle:Setting: Target: Target
:Draft : Speed
:Torp. :Results
: Perform-:
of
:ance
:
:
:
:
:
:
:
:
1
: 2
Not
Bridge
90015 ft. : 18 ft.:8 kts.
: 100%
Tanker :
:
: Recorded:
2
Frei-
ghter
4
:14 secs.: Spread
: target
900 :15 ft. : 18 ft.: 12 kts. : 100%
3
Air-
Graft
carrier:
:
: 2
:length-a-
:head to:
target
: length
:astern
:1'-00" :Midship
:
1200 :15 ft. 22 ft.: 15 kts.
100%
: Island
:130°
:
:
: Attack
Two hits.
:Ship left in 4
: apparently
: sinking con-
:dition.
Two hits.
:Ship sank in
: 14 minutes,
:bow first.
:
:Missed.
-17-
ENCLOSURE (A)

— page 37 —
CONFIDENTIAL
U.S.S. NARWHAL (SS167) - REPORT OF SECOND WAR PATROL
-
8. ENEMY A/S MEASURES:
25 February at 1930 Inter in Lat 29-00N, Long. 141-55E
made contact with what is believed to have been small A/S pa-
trol. Contact described in narrative.

5 March at 2348 Inter sighted two patrolling destroy-
ers in lat 27-58 N, long 128-25E. This was about 24 hours af-
ter the enemy freighter was sunk in a position about 55 miles
to the northward. It is thought probable that these destroyers
were patrolling this area as a result of the sinking the pre-
vious night in an attempt to locate the responsible submarine.

No other A/S measures were encountered in the Amami
Area. Not a single plane was sighted and no fishing nor pat-
trolling sampans were seen.

9. MAJOR DEFECTS EXPERIENCED:
a. Enroute to Midway heavy seas carried away after
torpedo loading skid and washed it overboard. Lumber was ob-
tained at Midway to construct a makeshift support which it
is hoped will suffice in transferring torpedoes from deck tubes
to after-room.

b. After three days submerged running cells No. 28 in
the Forward Battery and No. 78 in the after battery were well
below battery average in specific gravity and were jumped out.
Both these cells have a history of low capacity and their re-
newal at next yard overhaul has been requested.
-
c. 22 February - While on surface hydraulic line con-
necting A-end of steering speed gear to pressure regulator car-
ried away. Oil sprayed out all over the after end of the af-
ter torpedo room and flooded the stern plane motor. Since all
three systems of steering require pressure in this line, the
ship was without steering power and had to be steered by using
changes of speeds on the engines. The line was renewed in 1
hour 27 minutes and steering restored. The stern plane motor
was placed back in commission by thoroughly washing out the
oil and drying.
-
d. 23 February - 4th stage port MEAC cooler sprang
a leak and had to be renewed. Work was still in progress when
ship surfaced and only one engine was in commission until 2105
King when repairs were completed by replacing defective tube
nest with spare.

-18-
ENCLOSURE (A)

— page 38 —
CONFIDENTIAL
U.S.S. NARWHAL (SS167) - REPORT OF SECOND WAR PATROL
e. Trouble has been experienced with leaky main engine
exhaust valves. This trouble has been controlled by stopping
each morning before diving and working the valves several times
to knock off the carbon.

f. Air leaks in main ballast tanks have been trouble-
some. It is necessary to vent the tanks once each watch. This
is a dangerous procedure in close waters. The situation was
improved by closing the individual group blow valves as well
as the master. The air is apparently leaking through the blow
valves in spite of the fact that they were all carefully ground
in during pre-patrol overhaul. It indicates that these valves
should be renewed next yard overhaul.

g. 3 March - The QC sound equipment failed. Cause fin-
ally found to be open primary of audio output transformer. No
spare was on board, but this transformer was replaced with one
of same type from red-light amplifier circuit and set was thus
placed in commission except for red-light echo ranging.

h. 3 March - The fathometer, NM10, would not function
when started up to check position after long period without sights.
Failure believed due to accumulation of moisture over long pe-
riod of idleness. Will be baked cut each day with lamp bank.

i. 5 March - Oil leaks into 3A and 3B showed up. These
tanks had run dry and been washed out and placed in use as nor-
mal ballast tanks on 25 February. Samples were taken off tops
of tanks each day thereafter during dive. On this date pure
oil was obtained. Leaks into these tanks had developed over-
night. They are believed to be from either the normal forward
group or more likely through the low pressure blow line checks
from No. 4A and B fuel ballast. It is thought the jar of tor-
pedo explosions during last night's attack may have started
the leaks. Tanks No. 3A and 3B have been cut back in as fuel
ballast tanks in order to prevent loss of oil through them.

j. 6 March - During this night the superstructure side
plating just forward of the expansion joint was torn loose from
the hull by the heavy seas at its after end and bangs and buck-
les with considerable noise. On the first calm night attempt
will be made to secure this plate to reduce noise

k. 17 March - Superstructure plating and framing car-
ried away at bottom for an area of about six frames on port
side of forward gun sponson. This area was battered and wea-
kened initially by surging of ship against the dock at Midway.
The loose plating and framing rattles and bangs and threatens
damage to the pipe lines behind it. We have no facilities for
cutting it away or securing it.
-19-
ENCLOSURE (A)

— page 39 —
CONFIDENTIAL
U.S.S. NARWHAL (SS167) - REPORT OF SECOND WAR PATROL.
1. 18 March - Starboard main engine developed circula-
ting water leak around #9 cylinder head. Due to rolling of
ship, it was necessary to dive to lift cylinder head. Upon
lifting head found rubber grommet around circulating water nip-
ple to head had failed. Renewed all grommets (8) and replaced
head. Repairs required 9 hours 6 minutes. A similar failure
occurred on previous patrol. These failures indicate the ne-
cessity for renewal of all these grommets.

m. Trouble with steering gear jamming on hard left or
right has been experienced. The steering system is not prop-
erly centered and has a tendency to creep on in the direction
of movement after steering wheel has been stopped. The wheel
then locks and cannot be moved necessitating a shift to emer-
gency steering to break it loose. It is believed this condi-
tion can be remedied upca return to Base with yard assistance
by proper adjustment of the operating mechanism.

n. 25 March - Low pressure blow line, port side, to
forward group carried away. Check valves apparently leaked
also as ship settled by bow and took port list making it
necessary to close forward group floods on power.

10. RADIO RECEPTION
Last consecutive serial sent was NARWHAL's number
Last consecutive serial received was Comtaskfor 7 Num-
five.
ber seven.

Reception on task force frequency was excellent until
22 February when frequency was shifted from 4155 to 4235 kcs.
The Task Force Commander was then no longer heard although
primary shore stations on this frequency were heard contin-
uously.

Reception of NPM low frequency Fox schedule was ex-
cellent on way out east of long 146-20 E when it began fading
out. On way home reception again became good and remained
good east of long 137-40 E. West of these longitudes it was
always possible to copy NPM on a high frequency so that sched-
ules were not missed.

NARWHAL was unable to raise the Task Force Commander
on 4235 kcs. or its second harmonic on three occasions when
calling from within 1000 miles of Pearl. On the first occa-
sion the call was made during daylight and when no answer was
received, transmission was deferred until night. That night
the Task Force Commander was again called without success.
After hearing us calling, the Commander Base Force came up
and offered to take our message for relay which was done.
On the next occasion when only about five hundred miles
from Pearl we again could not raise the Task Force Commander

-20-
ENCLOSURE (A)

— page 40 —
CONFIDENTIAL
U.S.S. NARWHAL (SS167) REPORT OF SECOND WAR PATROL.
-
and finally called and relayed the message through NPW.
Because of the tactical importance which will attach
to direct communication between the Task Force Commander and
the task units in conduct of operations with the fleet, it is
recommended that effort be made to improve and employ direct
communication at all times when within range.

11. SOUND CONDITIONS AND DENSITY LAYERS:

Sound conditions were in general good. There were
several reports of hearing propellers which proved to be false.
The source of the noises heard could not be determined. They
were usually mushy crackling noises.
The temperature gradients were not marked and usually
did not change more than one degree between periscope depth
and 130 feet. In general the water was slightly warmer at deep
depth.
No density layers were encountered.

12. HEALTH AND HABITABILITY:

Health of the crew during period of patrol has been
excellent. One enlisted man was admitted to the sick list
with tonsillitis, acute; four sick days. There were eight
men treated for this condition during the first week of pa-
trol, none after that time. These men, for the most part,
apparently had contracted their condition prior to departure.
Attendance at sick call classified as to complaint
during the period 2 February to 26 March was as follows:

| Complaint               | No. of Cases | Treatments. |
||||
| Tonsillitis, acute      | 8            | 42          |
| Catarrhal Fever, acute  | 4            | 9           |
| Constipation            | 14           | 16          |
| Headache                | 15           | 19          |
| Furuncle                | 5            | 29          |
| Burn; chemical, eye     | 1            | 2           |
| Burn, hand              | 1            | 1           |
| Trichophytosis          | 1            | 4           |
| Abcess, tooth           | 1            | 2           |
| Earache                 | 1            | 1           |
| Gastritis, acute        | 1            | 2           |
| Conjunctivitis, acute   | 1            | 1           |
| Dermatitis, body        | 1            | 4           |
| Injuries, minor         | 20           | 26          |
| Miscellaneous           | 18           | 18          |
| Total                   | 92           | 156         |

-21-
ENCLOSURE (A)
0

— page 42 —
FB42/A16-3(1)
Serial (013)
FIRST ENDORSELENT
SUBMARINE DIVISION FORTY TWO
C-O-N-F-I-D-D-N-T-I--L
From:
To
:
Subject:
1.
2.
Care of Postmaster,
San Francisco, California,
March 29, 1942.
The Com ander Submarine Division FORTY-TWO.
The Comlander Submarines, Pacific Fleet.
U.5.3. NARIAL (SS167) Report of Second War
Fatrol.
Forwarded.
The patrol is considered to have been carried
out most efficiently. The manner in which all contacts were de-
velored and attacks pushed home to a visibly successful con-
clusion, is considered particularly praiseworthy.
3.
an unnecessarily
The prevalent tendency of submarine commanding
officers to spend an unnecessarily large proportion of daylight
hours submerged enroute to, while on, and while returning from
patrol station is again noted in this instance. No aerial
activity of any consequence by the enemy was evident, and the
nere fact that it might be expected and that the submarine night
be discovered is not considered sufficient cause for daylight
submergence, particularely if periscope and sound, observation
reveals the lack of presence of the enemy.
4.
The exmenditure of 4 tor edoes on a freighter of
5,000 tons is considered excessive.
5.
The patrol report while well written and con-
forming in general to the prescribed forn is considered
unnecessarily verbose. Comments and recommendations as well.
as logistic tabulations are contained in the narrative instead
of in space provided elsewhere.
6.
The Division Commander was most favorably in-
pressed with the visibly high state of morale existing on board
upon the completion of the petrol, and with the exceptionally
high standard of cleanliness of the ship and ship's company.
7.
It is reco ended that the commanding officer be
awarded the Navy Cross for his conduct of this patrol and that
commendation by the Type Commander be made for other officers
and members of the crew.
Copy to:
CO NARALAL
1
J. K. HAINES.
HOLOSURE (5)

— page 43 —
FC5-4/A16-3
Serial 095
SUBMARINE SQUADRON FOUR
c/o Fleet Post Office,
Pearl Harbor, T.H.,
March 29, 1942
8
CONFIDENTIAL
From:
To
:
Subject:
1.
The Commander Submarine Squadron FOUR.
The Commander Submarines, Pacific Fleet.
Comments on U.S.S. NARWEAL War Patrol.
The patrol report of the NARWHAL is too much in
detail. It shows the reasoning used by the Commanding Officer
in arriving at his decisions rather than merely stating his
decisions. The essentials are hidden in a long report.
2.
The squadron commander hesitates to criticise
the Commanding Officer for too much running submerged during
daylight. It is felt however that the run from Midway to Wake
could have been made on the surface. Under certain circum-
stances it might even be advantageous to have the enemy know
that a submarine is in an area especially if the submarine is
clearing the area.
3.
It is unfortunate that bad weather prever
a successful attack on the Japanese carrier on March 9.
4.
In spite of rough weather the material condition
of the NARWHAL was good throughout the patrol. For an old
ship this speaks well for personnel concerned. Morale was
also high.
5.
No further action is recommended in connection
with the grounding alongside the dock at Midway. It was
caused by an operating error on the part of the throttleman
and the damage was slight if any.

Copy to:
Comsubdiv 42
CO NARWHAL
R. H. ENGLISH.

ENCLOSURE (C)

— page 44 —
U.S.S. NARWHAL (SS-167)

The so-called THIRD WAR PATROL for the period
28 May - 13 June 1942 is not held by the Opera-
tional archives, Naval Historical Center. This
was actually the second patrol conducted by this
submarine during World War II.

1 February 1976

— page 45 —
FF12-10/A16-3(5)
Serial 0991
DECLASSIFIED
Reg. No.. 1926
R.S. No. 9-01380
SUBMARINES, PACIFIC FLEET
Ist copy
Ee
COMMANDER IN CHIEF
des. S. FLEET
RECEIVED
Care of Fleet Post Office
San Francisco, California, CEL
September 1, 1942
COL SUBPAC PATROL REPORT NO. 58
U.S.S. NARWHAL FOURTH WAR PATROL.
From:
To
:
Subject:
Enclosure:
1.
1942 SEP 20 12 29
The Commander Submarines, Pacific Fleet.
Submarines, Pacific Fleet.
U.S.S. NARWHAL (SS167) - Report of
Fourth War Patrol.
[HANDWRITTEN: Third]
(A) Copy of subject war patrol.
(B) Copy of Comsubdiv 42 Conf ltr FB5-42/
A4-3 Serial 040 of August 31, 1942.
(C) Copy of Comsubron 4 Conf ltr FC5-4/
Al6-3 Serial 260 of August 31, 1942.
Area One proved to be a very good area as far
as contacts are concerned especially close in to the northeast
shore line of HONSHU. NARWHAL made twenty-nine separate con-
tacts exclusive of sampans. Of these, two freighters were
sunk and one tanker damaged by torpedo fire. Three sampans
and two small steamers were destroyed by gunfire. Failure to
get tubes ready in time, foggy weather and possibly exploder
failures prevented other successful attacks.
2.
The premature explosion, reported by the NAR-
WHAL, to have occurred twelve seconds after firing indicates
(if time estimate of twelve seconds is correct) that this par-
ticular cxploder was most probably installed in the warhcad
with the detonator holder advanced slightly and the delay gear
advanced several teeth in the armed direction; with the
exploder installed in this condition, it exploded premature-
ly due to faulty generator brush action. Examination of
all exploders on board a submarine, which recently arrived
in this area from the East Coast, revealed various mechanical
defects which should have been detected by exploder shop or
submarine personnel prior to installation; one exploder had
been installed in a warhead in which no booster had been first
installed. The above points are described in order that ex-
ploder shop and submarine personnel may be impressed with the
necessity for meticulous inspection of exploders in the ex-
ploder shop during repair and test work and on board submarines
during installation and test of cxploders in warheads. The
premature explosion reported by the NARWHAL is the fourth pre-
mature explosion reported by submarines under this command and
over 400 torpedoes have been fired since the beginning of the
war, Exploder shop personnel are making every effort to locate
DECLASSIFIED-ART. 0445, OPNAVINST 5510.1C
BY [SIGNATURE: CF-0989C] DATE [HANDWRITTEN: 5/31/72]
- 1-
DECLASSIFIED

— page 46 —
FF12-10/A16-3(5) ARIDE, PACIFIC FLEET
Scrial: 0991.
1
Care of Fleet Post. Office;
San Francisco, California,
September 1, 1242:
COTTOETIAL
COJUDTAC FATROL REPORT NO.58
U.J.. - FOURTH AR PATROL.
Jubject:
... (0167) - Report of
Fourth War Fatrol.
-
and correct dcfcets in order that submarinesly be furnished
cxploders which are in perfcct opcrating condition.
3.
Test firings of tornadoca by a submarine arc
now being conducted at the Javal Tornado Station, Heport.
The Jurcau of Ordnance is furnishing pertinent information
resulting from thosc tests as it boerics available. Thỏ
latest available information states that Lark 14 Hodo and
Nark 15 Hods tornedocs, with Fark 15 and Lark 16 grhcaco
installed, run ton foet deeper than the depth actually sột
on the torpedo and that a torocco oct for zero depth 111
run at ten fcct.
4.
The assigned arcas cre cll coverca and Cood
hunting grounds located. xccllent recommaissance of 70200
Island was conducted in smite o noor cather conditions:
Navigational lights were burnin' with normal characteristics
and many ships wore not zigzagsins.
5.
১
The submerged loop antenna can ot be raised
above its present position. The Javal Researc'. Samphatory
is developing a small concentrated loop which can be put in
the radar nast. The antchna trunk for the flat ton antenna
should be. examined as that antenna should give potpor results
than the 1000.
6..
The ORAL/is-credited with the following
damage to the anony:
:
SUNK
2 Small Steáners
3 Sampans
2 Frcighters
TOTAL
-
-
2,500 tons
500 tons
-11; 500 tons
-14,500 tons.
-
2
-

— page 47 —
FF12-10/A16-3(5)
Scrial 0991
CONFIDENTIAL
SUBARINES, PACIFIC FLET
Jk
Carc of Flect Post Office;
San Francisco, California,
Se ptember 1, 1942
COINBUBPAC PATROL REPORT NO.58
U.S.S. NARHAL - FOURTH WAR PATROL.

Subject:
U.S.S. NARTHAL (55167) - Report of
Fourth War Patrol.

— page 48 —
Serial 011
U,S,S, NARWHAL
REPORT OF FOURTH WAR PATROL
PERIOD FROM July 8, 1942 TO: August 26, 1942
OPERATION ORDER: Comsubpac No. 60-42 of July 7, 1942.
CONFIDENTIAL
1. NARRATIVE:
July 6-13 - Enroute Midway. Conducted training dives and
drills including night and day gun firing with 6" guns and mach-
ine guns. Planes sighted were all friendly and are listed in
peragraph 6.
July 13 - At 0555 Yoke entered Midway lagoon and noored
alongside U.S.S. FULTON at the south side of Havy Pier. Received
29,015 gallons of diesel oil fron Lidway storage. Hade minor
repairs. FULTON gave every assistance requested and personnel
of Squadron EIGHT and FULTON were most cooperative and eager to
render every service we required.

At 1641 departed Midway. Air coverage was furnished.
July 13-22 - Enroute to Yetorofu Island. Steamed on sur -
face at 2/3 speed (10 knots) on both nain engines. At 1940 Love
July 16 fog set in. Ran continuously thereafter in fog. Average
visibility 500-2000 yards. At 2100 King July 21 destroyed all
secret and confidential publications and natter that would be
of aid to the enemy in case of disaster to this ship, except one
code in crypto channel 100 with accompanying call signs and
.authenticators. The nature of the forthcoming operations is
such that this ship will be operated in shallow waters where
the enemy controls salvage operations.

At 1205 King July 22 made landfall by fathometer on 100
fathon curve, visibility 500 yards. Fortunately the navigator
succeeded in getting a Lil sight at 1207 King with bubble
octant through the overhead mist. This line showed us to be
off the coast of Uruppo To between Goran Zaki and Hiro Jaki.
Passage into the Okhotsk Sea through Yetorofu Kaikyo was success-
Tully nade by following the 100 fathon curve around the southwest
and of Uruppu To. At 2007 King July 22, the fog cleared and
Kamõi Dake and surrounding peaks on the northern tip of
Yetorofu Jima were sighted.

At 2034 King sighted one white light and smoke of a vessel
running westward along the coast (Contact No. 1).

During the night steamed in area north of Homoi Dake. The
water was remarkable for its phosphoresence. The phospherescent
wakes of two fish swimming directly at the ship gave the watch
a real scare. The 0.0.D. thought the ship, was about to be
torpedoed sure.
- 1 -
ENCLOSURE (A)

— page 49 —
CONFIDENTIAL
Subject:
-
U.S.S. MARTIAL - Report of Fourth War Patrol
-
July 23 at 0337 King dived to conduct submerged reconnaiss-
ance of Bira Sentai. Headed directly for Shibetoro Byochi.
Reconnoitered this inlet with Cood visibility. Nothing present.
Proceeded southwestward along coast at periscope depth with 15
minute periscope observations, about two niles off and just in-
side the 100 fathom curve. After passing Shibetoro Byochi the
shore line was shrouded in mist and navigation had to be accom-
plished by fathometer but average visibility was estimmted st
4000 yards and it was believed that any ships anchored off the
coast could have been seen. At about 1000 King the fog closed
in and visibility was estimated at 1000 yards. Decision was
made to continue the reconnaissance in the hope that visibility
Would imprově, At 1330 visibility commenced to improve. Sy
1415 (Position Latitude 45 - 18 N., Longitude 148-12 E) it was
clear all around except for high fog around the mountain peaks.
An excellent view of the entire inner bay and shore line was
obtained. Not a ship nor sampan was in sight. There were no
signs of any new constriction or any beacons, markers or lights
along the beach which would indicate the use of this bay for a
fleet anchorage.

At 2035 King surfaced about 2.5 miles to eastward of the
outer end of Chirippu Hanto. What appeared to be native cooking
fires were seen on the beach at two places. At 2100 King fog
set in thick. Procceded on soundings to position off Shana Jan.

July 24 - At 0357 King dived in the fog in estimated posit-
ion 2.6 miles off Shana Wan. Patrolled in this area awaiting
clearing weather. At 1035 King fos lifted and a good look at
the Shana Tan area was obtained. To ships nor sampans were
present in the area.
-
At 1055 King fog settled down again with visibility varying
from 1 to 2 miles to seaward and the shore linc locked in denše
fog. Ship proceeded submerged toward entrance of Rubetsu Wan.

At 1430 King ran out of the fog. The shore line of Rubetsu
Wan and the village of Rubetsu were sighted. The bay was re-
connoitered. No ships were present. Two small sampans were
sighted noored close inshore.

At 1540 King while in Rubetsu an sighted small inter-
island steamer entering bay from seaward (Contact No. 2).
Connenced approach. At 1626 King fired one torpedo (Attack No. 1).
Lissed ashaking Speed estimated 10 knots and target was probably
actually/13-14 knots. Estimated position of torpedo at end of
run is Latitude 45-09.2 N., 147-39.4 E. Hade battic surfacc
emergence and sank steamer with gunfire without opposition.
Steamer sank at 1703 King. Some shells from wild shots and
ricochets may have fallen in the town of Rubetsu which was in the
background in the linc of fire at timc's. As no military ob-
jectives were observed, the town was not shellcd.
-2-
ENCLOSURE (A)

— page 51 —
CONFIDMITIAL
Subject: U.S.S, ILRULAL - Report of Fourth War Patrol.

not see on account of fog but nothing was heard in the arca. It
did not seem worthwhile to spend more time here waiting for the
fog to clear so upon surfacing at 1810 King pročecded northeast-
ward along the 100 fathoms curve to a position off Hitokappu Man.
-
July 26 - While circling on surface in estimaged positón
three miles off Hitokappu Wan waiting for the fog to clear, the
fog lifted to scåvard and a good sized sampan mas sighted at 0845
King (Contact No. 7), Gave chase and destroyed with gunfire
(Attack No. 5) at 0945 King. Again were unable to set the sampan
on fire with machine gun fire. 6ª firc also failed to set her on
fire, After eight rounds of 6" she was completly splintered and
awash.

During above attack sighted a small stcam trawler (Contact-
No. 8). At 1015 King after sampan was wrecked, took up pursuit
of trawler. Had just settled on pursuit course when a destroyer
was sighted to northward (Contact No. 9) coming in at high speed
distant about cight milcs. It is assumed that she was summoned
to the area by distress signals heard while pursuing and attack-
ing sampan.

Dived at 1018 King. Watched destroyer approach until she
was about 7000 yards distant. Tent to doop submergence rigged
for depth charge and silent running. Destroyer did not ping and
her screws were not heard. Estimated that she liad stopped to
listen. Remained silent clearing the arca at slow speed until
at 1315 King came to periscope depth. Nothing was in sight.
Escape tactics rather than attack on destroyer wore employed duc
to the glassy sea, the fact that she had seen us submerge, the
element of surprise was lacking, and we were leaving an oil slick,

Resumed patrol at periscope depth procceding to rcconnoiter
Hitokappu Man in case the fog along the coast lifted..

At 1612 King sound reported high speed screws 40° cus 40° on the
bow. Japanese ship ( Contact No. 10) which resmbled the minc-
layer SHIUSU passed about 5000 yards distant at high speed. The
range was too great for an attack. Visibility at the time was
about 6000-7000 yards and the ship was not sighted approaching
by the officer of the deck on his periodic periscope sweep. This
was a disappointing incident but hunting in the fog leaves much
to chance,

Fog did not clear along the const all day and it was in-
possible to reconnoiter Hitokappu an visually,

-4-
ENCLOSURE (A)

— page 52 —
COIF IDENTIAL
Subject:
U.S.S. ITAR THAL - Report of Fourth Mar Patrol
Decision was made to proceed to Hoyorro Wan arca during
the night as there appeared to be nothing worthy of reconnaiss-
ancc along the southeast coast of Yetorofu betricon Hitokappu
Wan and Noyorro Wan.

July 27 - Dived at dawn in thick fog in Yotorofu Kaikyo
in position estimated by fathomcter to be four miles off the
entrance to Moyorro Wan. Patrolled submerged north-south
line off Loyorro Wen all day,, hoping for fog to clear sufficiently
to make a land fall and reconnoiter Hoyorro Von. Fog continued
dense all day. Visibility never more than 1000 yards.

Upon surfacing in the evening decision was made not to
spend more time in reconnaissance of Yotorofu. The entirc
island had been circled. All bays on the northwest coast had
been observed visually and although the southcast coast was
continuously fog bound a day cách hnd böồn spent off the only
three bays from which there was probability of enemy naval forces
operating. The lack of any patrolling activity off the on-
trances of these boys was considered evidence that no major
onomy naval units were present.

July 28 - Proccoding to Arca. Reduced to one engine
speed due to necessity of conserving fuck. Fog cleared at 0900
King in Latitude 43 55 E., Longitude 148-32 II. Remained on
surface running southwestward all day about forty-five miles
off the coast. No plancs were sighted. Apparently the Jap-
anese are not maintaining a systematic air patrol of this arca.
-
July 29 As we were now only forty miles from the cir
fields at Nemuro decided to proceed submerged during daylight
in order to reach arca undctccted. At 0536 King sighted sampan
(Contact No. 11). Naneuvered to avoid disclosure of our pres-
ence. At 1718 King sighted sampan (Contract Ib. 12). At 1914
King sighted sampan (Contact No. 13). At 2052 King sighted
white light (Contact No. 14). At 2105 King sighted white light
(Contact No. 15).

July 30-At 0050 King sighted two white lights (Contacts
No. 16 and 17). At 0100 King entered Area ---, believed un-
detected onroute, and proceeded southwestwerd along Crino Jaki
Attu Island line. At 0335 King fog set in. Continued on
surface after daylight. until 0554 King at which time fog appcar-
cd to be clearing, fog actually cicerca at 1005 King and ship's
position was fixed by bearings on tangent of high land at Hino
Saki and mountain peaks along the const. We were directly on the
4
Erimo Saki - Kushiro line. This appeared an ideal position and
patrol was continued southwestward along this line.

-5-
ENCLOSURE (A)

— page 53 —
CONFIDENTIAL
Subject:
U.S.S. HARMMAL - Report of Tourth War Patrol.
No contacts during day. Surfaced south of Erimo Jaki Light..
and proceeded along line from Erimo Saki to Tsugaru Kaikyo.
During the night sighted five lighted sampans (Contact No. 18)
and maneuvered to avoid. Navigational lights and lights along
the beach were burning.
-
July 31
At 1346 King sighted nasts of two ships (Contact
No. 19). Closed to 3000 yards. Broke off attack due to
decision not to disclose our presence for so small a tarĝet.
Surfaced at nightfall and proceeded to Shiraya Saki arca.
August 1 At 0412 King sighted darkened ship and sübmerged
about five miles east of Shiraya Gaki Light (Contact No. 20)."
Ship was proceeding southward close inshorc. Could not close.
At 0420 King sighted steaner (Contact No: 21) proceeding
northward close inshore. Could not close. At 0503 King sighted
ship (Contact No. 22.) Hade approach. Broke off attack when
ship was made out to be a small wooden hull notor vessel. At
0550 King sighted steamer (Contact No. 23). Hade approach.
At 0626 King fired two torpedoes (Attack No. 6). First torpedo
exploded prematurely 12 seconds after firing. Target swung and
avoided second torpedo and zig-zagged radically thereafter.
Considered firing more torpedoes usclès, The pronature ex-
plosion gave this ship a severe shock. This torpedo müst have
been partially armed before firing to explode so close.
Estimated positon of second torpedo is Latitude 41-24 II., Long-
itude 141-28 E. There is a possibility that this torpedo nay
have run up on the beach.
Continued patrol at periscope depth to southward in
stcamer lane.
At 0740 King sighted small ship (Contact No. 24) running
southward close to coast, same type as (Contact No. 22).
At 0819 King sighted ship (Contact No. 25). Made approach.
At 0839 fired two torpedoes (Attack No. 7), Both hit. Ship
stopped and commenced listing to port slowly, As it appcared
there was possibility that she might not sink, fired a third
torpedoe at 0855 King.. Hit amidships. Ship sank at 0859 King.
Two life boats cleared. Estimated tonnage 6500, Onc minute
after target sank an underwater cxplosion was heard, Lorale
of all hands was boosted remarkably by this success after the
hcart breaking experience of having the torpedo's prèmăture
explosion rob us of a rich prize on the carlier attack.
Continued patrol at periscope depth to southward in steaner
lane,
- 6-
ENCLOSURE (A)

— page 54 —
CONFIDENTIAL
U.S.S. MARWHAL - Report of Fourth War Patrol
Subject:

At 0930 King sighted steamer (Contact No. 26). Hade
approach. At 1003 King fired two torpedocs (Attack No. 8). Onc
hit. Immediately following the explosion, a second explosion
was heard. This may have been an ċcho or there is a possibility
that the second torpedo countermined. The firing interval vas
exactly 10 seconds. At 1010 King while observing the target
for damage three bombs or depth charges struck close aboard.
Believe they were bombs from aircraft as nothing close aboard
was sighted with a quick sweep of the periscope before going
decp.. Then last observed the target vessel was enveloped in
the smoke of the torpedo explosion and had commenced to settle
by the stern. However, sound continued to hear hor propeller
and the best we can claim is a 4000 ton tanker damaged, probably
sank.

Depth charging continued throughout the day the last salvo
of three charges were dropped at 2007 King. A total count of
124 charges was made by the officer of the deck. Some were
close and some far away. The ship escaped damage except for two
minor leaks, some paint chips knocked off, and somč supcrstruct-
ure rattles developed. It was a lõng, "trying day. Personnel
withstood the strain very well. At 2141 King surfaced. All was
clear to our great relief. Battery gravity was 1128. It was
vital that we get on the surface to charge. NARWHAL had had her
indoctrination depth charging.
-
Augúst 2 - At 0112 King sighted two white lights (Contact
No. 27). Maneuvered to avoid.

At daylight submerged about fifty milcs off the coast. Rc-
mained at deep submergence resting. All hands were completely
tired after our thrce attacks on stcancrs and the long depth
charging ordeal of the day before..
-
August 3 - Dived at daylight in fog on seaward cage of
steamer lanc off Kuji "an. Proceeded at deep submergence to
close the coast. Then weather cleared patrolled at periscope
depth. At 1020 King sighted steamer (Contact No. 28) Too small
to warrant attack. At 1150 King sighted Steaner (Contact No. 29).
Commenced approach. Eleven minutes after approach began hičavy
mist obscured the target. This was followed by heavy rain.
Sound picked up false screws and approach was made on sound
bearings. Then the rain squall cleared the true target was
sighted close aboard bearing down on us. Went to 30 feet. Scrows
passed overhead. Returned to periscope depth but target was
too distant to waste a torpedo on a large track.

-7-
ENCLOSURE (A)
0

— page 55 —
CONFIDENTIAL
Subject: U.S.S. NARWHAL - Report of Fourth War Patrol.

At 1350 King sighted one large and two small steamers, and
onc patrolling sampan (Contact No. 30) proceeding in a group.
Decided to attack the large freighter. On approach had to duck
the sampån and one small frcighter. Good attack position was
attained. Had rigged ship for depth charge attack duc to
patrolling sampan. Delayed getting tubes ready for firing be-
cause of likelihood of depth charging. Duc to an incorrect
range estimate delayed too long and target got past before tubcs
could be gotten ready. Immediately thercafter patrolling sampan
chas cả us to deep submergence and cvasive mancuvers. No charges
were'dropped. Sca was glassy calm. After surfacing at 2105
King, lights were plaingly visible along the beach in the towns.
At 2221 King sighted white light of sampan (Contact No. 31),
mancuvered to avoid.

August 4 - At 0214 King sighted white light of sampan.
Laneuverca to avoid (Contact No. 32). At 1020 King sighted masts
and stack of steamer hugging the coast (Contact No. 33). Could
not close. At 1044 King sighted sampan (Contact No. 34). At
1235 King sighted sampan. (Contact No. 35). At 1538 King sighted
smoke over the horizon (Contact No. 36). Nadc approach. At 1632
King fired two torpedocs (Attack No. 9). Results negative. With-
out any intention of making an alibi, the commanding officer
sincerely believes that the negative results of this attack wore
duc to failure of the torpedo warheads to cxplode. The torpedo
run was about 800 yards. The target was stcaning on a straight
course conforming to the coast linc. Speed data checked perfcct-
ly both by plot, Ford rangekeeper, and overall tinc of target
run from 9600 yard range to firing point. A longitudinal spread
was used modified in that the second torpedo was angled 3 with
the target travel in order to insure more than a 10 second in-
terval between torpedoes. "The first torpedo was aimed at the
forcmast, the second at the mainmast. There is no accountable
reason why both torpedoes should not have been hits. Both tor-
pedoes were heard by sound to run hot and normal. Both the C.c.
and J.K. opcrators reported hearing what they believed to bo
the first torpedo hit the hull of the target without, detonating,
causing thumping, scraping noises and "a big commotion in the
water." It is believed that this cond torpedo ran under the
target without detonating. The first torpedo had one of the
ncw 600 pound warheads on it. The location of the end of the
run of these torpedoes is probably on the beach on the cast
coast of Honshu four miles south of the town of Yagi. The
NAR HAL was only 4000 yards off the beach at firing and the
torpedo courses were 2459T and 2420T respectively.

Upon surfacing that night decision was made to shift the
scene of operations to the Frino Saki - Kushiro Arca.

- 8 - ENCLOSURE (A)

— page 56 —
CONFIDENTIAL
Subject: U.S.S. MAR HAL - Report of Fourth War Patrol.

August 5 - At 0245 King sighted darkened ship on port bow
close aboard (Contact No. 37). We were silhouetted against the
moonlight and detection on surface attack seemed certain.
Dived for periscope attack. Ship was trimmed 30,000 pounds
heavy, the customary practice due to lack of a negative tank.
By the time ship could be caught and brought back to periscope
depth the target had gotten by.

On this night fuel ballast tank 4-D ran dry with a fuel
loss of 6185 gallons. This loss had been feared after the air
leaks in No. 8 air bank situated in this tank had been dis-
covered after the gun engagements.

At 2304 King sighted Erimo Saki Light. The lights of five
sampans were sighted (Contact No. 30) and avoided while approach-
ing Erimo Saki. Patrolled all day at periscope depth. No con-
tacts, This is the second day this area has been patrolled
with nothing sighted. Apparently there is but little traffic
around this point.

Had intended to continue northward to the Kushiro area but
due to the large oil loss, which restricts our movements, dec-
ision was made to return to the area off the east coast of Honshu.

At 2313 King sighted group of four white lights (Contact
No. 39). The area south of Erimo Saki apparently is a popular
fishing ground.

August 7 - At 2107 King (Contact No. 40) sighted white
light. At 2230 King sighted Shiriya Saki Light.

August 8.- At 0030 King, after charge on main engine was
secured, commenced search of steamer lanes southeast of Shiriya
Saki to conduct night attacks. At 0045 King sighted steamer
(Contact No. 41). Gave chase but could not close. At 0104 King
discontinued chase and continued cruising in steamer lanes
without any further contacts except with two lighted sampans
(Contact No. 42).

At daylight submerged southeast of Shiriya Saki: "Conducted
periscope patrol. At 0512 King sighted (Contact No. 43) masts
and stack of steamer to northward going north. "Could not close.
At 0650 Sighted sailing sampan (Contact No. 44). At 0735 King
sighted small steamer (Contact No. 45). Could not close. At 1035
King sighted masts of ship and commenced approach (Contact No.
46). At 1123 fired two torpedoes (Attack No. 10). One hit.
Again the original explosion was almost instantly followed by
the sound of a second explosion as on attack No. 8. It is

- 9 -
ENCLOSURE (A)

— page 57 —
CONFIDENTIAL
Subject: U.J.S. HAR HAL - Report of Tourth War Patrol.

believed this was definitely an echo rather than countermining
of the other torpedo. The target türned for the beach but sottled
rapidly by the stern and sank stern first at 1129 King. A large
cloud of stean and smoke arose amïdships as she was sinking. The
position of the other torpedo at the end of its run is Latitude
41-19 H., Longitude 1/1-50 3.
:
At 1116 King while making above approach sighted a second
steamer approaching from southard (Contact No. 47). Innödiately
after firststearer sank, began approach on second stéaner. When
range was 7200 yards, steaner turnch about and fled. She had
been warned of our presence probably bywitnessing the sinking
of the first ship. Clcared area at deep submergence. At 1000
King resuned periscope patrol.

At 2252 King sighted white light Contact No. 48).
1
August 9
-
At 0215 King sighted white light (Contact No. 49).
▼
At 0405 King the fog along the coast lifted and the lights
of the city of Hachinohe were sighted. The large navigational
light at Jame aku could not be picked up. A large flame as fron
a smelter was torching at Hachinoke.

At 0540 King sighted šnall open sampan (Contact No. 50).
There were five men in it. Nothing about its appearance indicated
it was engaged in patrolling. At 0933 King sighted patrol vessel.
(Contact No. 51). She was steaming northward parallel to coast
about five miles to scaward. At 1044 King (Contact No. 52)
sighted cither the same patrol vessel returning or one of sane
type steaming southward along the coast about one milc inshore
of us. Went deep to permit hand operation of planes and ran
silent. It is estinted patrol vessel crossed astern about 3000
yards distant at 15 knots. She was not pinging. After her
passage resumed patrol at periscope depth.

At 1249 King sighted smoke of steaner proceeding southward
close to coast. Commenced approach. "hile still only masts and
stack were in sight, fog closed in. Continued approach on normal
approach course in hope of clearing weather or possibility of
firing sound shot. Steamer was not heard nor seen again.

Upon surfacing decision was mde to proceed to patrol the
Kushiro-Todo Saki steamer route during the night and submerged
next day.

At 2138 King sighted white light (Contact No. 54).

-10
ENCLOSURE (A)
e

— page 58 —
CONFIDENTIAL
Subjcct:
U.S.S. MARTIAL - Report of Fourth War Patrol.
-
-
August 10 - Patrolled Kushiro-Todo Saki and Küshiro-Tokyo
routes. Ho contacts. Upon surfacing set course to close the
coast in the Shiriya Saki crca. However; star sights showed
that ship had been set 45 miles southeast of D.R. position.
With available speed we could not reach intended patrol arca
next day. Decision was then made to conduct a surface patrol
of the Kushiro routes during the night and next day. At 2300
King sighted white light (Contact No. 55).

August 11 - At 0500 King sighted sampan on horizon (Contact
No. 56) Dived to escape detection. After sampan had passed out
of sight surfaced to continue patrol. At 0930 King sighted air-
craft (Contact 3, paragraph 6) coming out of cloud background"
distant/584iles. Dived inmediately. As ship was pas ing 45
fect, the first bomb hit close aboard with loud sharp crack. To
damage was done and shin was only slightly shaken. Font doop.
At 0947 King felt shock of onc depth charge. No damage. Com-
tinued at deep submergence. Ho further depth charges heard.
All clear upon surfacing that night. Proceeded northeastward
along Kushiro routes. Had no other alternative as fuel was now?
too low to permit choice of other areas.

August 12 - At daylight divcd for periscope patrol on
Kushiro routes. At 0600 King just after periscope had biên
lowered three depth charges strück fairly close aboard along
starboard side one minute apart. No damage. Ment deep. These
charges were obviously dropped from an aircraft which had not
been sighted during the periscope sweep. Continued at deep sử -
mergence. At 1911 King three more depth charges were dropped.
These were so distant that the usual Moosh-woosh" was not
heard following the explosions. Surfaced at 2131 King and all
was clcar. Procceded to the costward hcading homeward.

August 13- At 0100 King departed from area---; two days
ahead of the date specified in our operation order. Tuel los ses
totaling 10,555 gallons had upset fuel calculations and made
this carly departure necessary.

August 14 - Decision was made to run submerged this day
during period when air search was most probable. Divcd at 0625
King and proceeded at periscope depth. At 0807 King it became
necessary to stop the starboard motor in order to adjust the star-
board clutch shifting collar which was running hot. Went to SO
feet as depth control on onc motor was uncertain at periscope
depth. At 0925 King repairs were completed and ship returned to
periscope depth. On first periscope exposure three destroyers in
column were sighted crossing our stern about 3000 yards distant
and two destroyers in columnucre crossing the bow about 4000 yards

- 11 - ENCLOSURE (A)

— page 59 —
CONF DENTIAL
Subject: U.S.S, IARTIAL - Report of Fourth War Patrol.

distant (Contact No. 57). Sound watch was being stood by our
most experienced operator but these ships had not been heard
approaching. Went to battlc stations submerged and got all
tubes ready for firing. Rigged ship for depth charge attack
and silent running. On next periscope observation a heavy
cruiser of the TOITE class was sighted about 6000 yards to north-
ward. Commenced approach on cruiser.

On the next observation the destroyers were rúnning all
over the occan and the cruiser had turned to put us on the
quarter. One destroyer was headed toward us. Our first
thought was that they were engaged in maneuvers as it did not
seen possible that we had been detected. On next observation
the destroyer heading toward us wasstill coning. Mont deop.
As we were passing 110 feet the first depth charges went off
close and aft. A series of five attacks were nade during the
period 0936 King until 0958 King. Accurato count of charges
dropped and their location could not be made. It is estinated
that about thirty-three charges were dropped averaging a little
more than six on cach attack. The only damage was the breaking
of the lens on the port upper side light. The unique feature
of all the attacks was that screws of the attacking vessel
could not be heard coming in. Between attacks the destroyers
screws could be heard. Than would follow a short period of
silence terminated by the exploding depth charges of the on-
suing attack. These methods upset our evasion doctrine of
turning radically and running fast when the attacking destroyer
is heard to speed up. It would seem that the attacking des-
troyer must come in so slowly that his screws are not heard
and project the depth charges by throwers well clcar of the
attacking ship on bearings obtained by listening.

After not hearing screws for a period of one hour returned
to pariscope depth. Nothing was in sight.

Wo ccho ranging was heard at any time.

During the attacks torpedoes were prepared for circular
runs both forward and aft but at no time did we have sufficient
sound information to warrant firing them.

At 2220 King sent contact report to Comsubpac.

August 15 to August 21 - Enroute Midway. Trip uneventful.

-12-
ENCLOSURE (A)

— page 60 —
CONTIDETIAL
-
August 21 - At 0453 Yoke at prescribed rendezvous con -
tacted onc Navy PBY, three scout bombers and Motor Torpedo Boat
No. 29 from Midway. The motor torpedo boat and three scout
bombers escorted NAR HAL to Midway entrance channel,. At 0754
Yoke entered Midway Lagoon and moored to U... FULTON. The
Commander Submarine Squadron EICHIT and officers of his staff,.
the Commanding Officer of the FULTON, and FULTON officers gave
us a most cordial welcome and enthusiastically volunteered every
servicc we required. From FULTON received 21,000 gallons of fuch,
fresh provision, and confidential and secret matter necessary
for remainder of patrol: At 1140 Yoke got underway and dc-
parted Midway for Pearl. Upon leaving entrance NARIIAL was
escorted by PYC 19 and three scout bombers. At 1445 Yoko
cscorts returned to Midway.

August 22 to 26 - Enroute Pearl. Unevenfful. All plancs
sighted were friendly.

At 0555 Victor-illian August 26 joined cscort and pro-
ceeded into Pearl.

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— page 61 —
CONFIDENTIAL
Subject:
U.S.S. NARWHAL - Report of Fourth War Patrol.
2. WEATHER:
Pearl Harbor to Midway - Excellent.
Midway to Yctorofu - Calm seas all the way; from Latitude
38-15 N., Longitude 167-05 E. there was continuous fog and some
light rain the rest of the trip.
After passing through the Japan Current the air temper-
ature and sea temperature dropped.from an average of 79° to
75° to an average of 50° and 46° respectively. Fog was contin-
uous.
At Yctorofu - Average air temperature 55°; average water
47°. Fog about 50% of the time on the northwest coast and the
land was locked in fog on the southeast coast 100% of the time
spent in the area. In the ONI publication "Strategic Harbors
of the Pacific", the observer reported for Yotorofu 26 days
continuous fog and 6 days rain for the month of July. Our ex-
perience does not disagree materially with his observations.
Weather was very unfavorable for avation. No Japanese
planes were sighted.
Sea was calm the entire period.
In area --- - Fog about 15% of the time at sea. Land fogs
and mists along the coast about 50% of the time. All except one
day of the time spent close to the coast of Honshu the sea was a
glassy calm with low ground swells. Periscope had to be handled
with greatest care on approaches. Off Erino Saki the sea was
choppy and excellent for periscope approaches.
Area -- to Midway - Fog for one day. Clear weather and
calm sea rest of way.
Midway to Pearl Harbor - Clear weather all the way.
Calm seas first two days and then the usual rough trade wind seas.
3. TIDAL INFORMATION
At Yotorofu, very little tidal information could be ob-
tained due to impossibility of obtaining fixes in the fog.
The only case of difference from the data on the chart
and in the Coast Pilot was observed off the point of Chirripu
Hanto where the arrow on the chart shows a continuous set to the
northwestward. The actual set encountered was about 125° True
velocity 2 knots.
Off the northeast coast of Honshu, the water gets consider-
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ENCLOSURE (A)

— page 62 —
CONFIDENTIAL
Subject:
U.S.S. NARWHAL - Report of Fourth War Patrol.
ably colder at deeper depths. As a result it was necessary to
flood in when going deep and pump out when returning to periscope
depth.
Off Erimo Saki, varying density conditions were encountered.
at periscope depth, the ship getting unexpectedly lighter or
heavier making depth control difficult.
Tidal currents off Honshu in general followed the charted
information. Velocities seemed to vary considerably, probably
due to tidal effect along coast.
Returning from Area --- to Midway the Japan current gave
s a favorable set of 1 to 2 knots practically all the way.

4. NAVIGATIONAL AIDS
The bubble octant proved of real value for taking sights
through the light overhead haze while running in low thick surface
fog enroute to Yetorofu.
Atoiya Misaka Light on the west side of Kunashiri Suido
was passed 5.5 miles abeam and was not sighted. This light was
either blacked out or more probably shrouded in land mist.
During the reconnaissance of Yetorofu the fathometer was
indispensable for navigating in the fog. The risk of enemy patrols
hearing its signal had to be accepted. A radar would have been
of assistance in obtaining bearings on the many prominent mountain
peaks.
Erimo Saki, Horoizumi Ko, and Samani Ko Lights were burning
with their charted characteristics during night of 30-31 July.
Shiriya Saki light was burning on night of July 31-August 1
with charted characteristics except that it flashed every 7 seconds
instead of every five seconds.
Erimo Saki light was burning with charted characteristics
on nights of 5-6-7 August.
Shiriya Saki light was burning on night of 7-8 August with
arted characteristics.

-15-
ENCLOSURE (A)

— page 63 —
CONFIDENTIAL
Subject:
U.S.S. INMARTIAL - Report of Fourth War Patrol

In carly morning of August 9 Hachinohc Ko, Same Kahu
Light could not be picked up while passing a bout seven niles
to scaward. If it was burning, it had been dinned to such an
extent as not to be discernible against the background glow
and lights of the city of Hachinohe.

- 16 -
ENCLOSURE (A)

— page 64 —
CONFIDENTIAL
5. ENEMY VESSELS SIGHTED:
Contact:
No.
Time
Position
Course
Speed
Description
Lat. 45-34N.
:
:
:
1
2034 K 7/22 : Long 148-48 Ε.
: 270°T
:
2
1540 K 7/24: Lat. 45 -09 N.
095°T
:
13
Long. 147-31 E.
:
:
:
3
: 1640 K 7/24 : Lat. 45-14 N.
Long. 147-31E.
: 180°T
9
:
4
:Saw only light and smoke.
:Small inter island steamer, Three
:island type; high stack; coal
:burner; length about 200 ft; esti-
:mated tonnage 1000; painted gray;
:flying Japanese Maru flag with
: Japanese maru flag painted on side
:amidships. Sunk by gunfire.
:Small inter island steamer, flush
:deck type with bridge structure
:amidships and high thin stack aft
:just forward of after mast; length
:about 220 ft. estimated tonnage
: 1500; painted gray with Japanese
:Haru flag painted on side amid-
:ships, Sunk by gunfire.
:1
:Fishing sampan returning to
:Rubotsu Wan.
Large heavily ladened sampan, wood-
:en hull, bridge and living quarters
:aft, mast and boom forward, painted
:white with Japanese Haru flag
:painted on side of bridge structure
:estimated length 90 ft. tonnage 200
:Burning running lights. Set on
:fire by gunfire.
:Identical sister ship of above sam-
:pan. Set on fire by gunfire. Burn-
:ing running lights which she con-
:tinued to burn even after witness-
:ing attack on first sampan.
ENCLOSURE (A)
1.
7
1.
1:
4
31725 K 7/24: Lat. 45-07 N.
: 095 T
8
Ling. 147-20 Е.
5
1950 K 7/24: Lat. 44-53 N: : 0450T
:
7
:Lông. 147-09 E.:
:
:
:
:
:2015 K 7/24: Lat. 44-55 N.
: Various :
7
:Long. 147-13 Ε.:
:
:
:
6
:
- 17 -

— page 65 —
CONFIDENTIAL
5. ENEMY VESSELS SIGHTID (Continued)
Contact
No
Time
Positior
Course
Speed
Description
7
0845 K 7/26 Lat. 44-50 N.
260°T
9
About 100 ton sampan. Painted gray
with Japanese Maru flag painted on
bow. Destroyed by gunfire.
Long. 147-55E
:
8
0914 K 7/26 Lat. 44-15 N.
000°T
Long. 148-06 Ε.
9
1018 K 7/26
Lat. 144-54 N.
240°T
20
Long. 148-06 Ε.
10
1612 K 7/26
Lat. 44-56 N.
175°T
22
Long. 145-57 E.
Steam trawlee. Stack aft, box like
foremast too distant to make out
details.
DD of KAMIKAZE class.
Ship believed to be CM of SHIMUSHU
class.
11
0538 K 7/29
Lat. 42-57 N.
2400T
2
Same type as Contact 7. Apparent-
12
1718 K 7/29
Long. 146-18 E.
Lat. 42-18 N.
ly fishing.
140°T
8
Long 145-47 Ε.
Fishing sampan about 50 tons.
Apparently proceeding to fishing
grounds.
13
1914 K 7/29
Lat. 42-17 N/
020°T
5
Same as Contact No. 12.
14
2052: 7/29
Long. 145-40 E.
Lat. 42-43 N
Long: 145-44 E.
15
2105 K 7/29
Lat. 42-49 N.
ong. 145-42 E.
White light, believed to be lighted
sampan.
White light, believed to be lighted
sampan.
16
00507/30 4343608
100. N
White light, believed to be lighted
Long. 145-08 E.
sampan
17
18
0050 K 7/30 Lat. 42-35 N.
Night of
Long. 145-05 Ε.
Lat. 41-42 N.
Long. 143-16 Ε.
White light, believed to be lighted
sampan.
Five lighted sampans were sighted
during night run on surface.
19
30-31 July
to
Lat. 41-48 N.
Long. 142-17 E.
1348 K 7/31 Lat 41-41 N.
075°T
11
Long. 141-43 Ε.
Small freighter estimated 2000 tons
Typical three island construction,
coal burner. Small patrol vessel
of
nverted yacht type.
18
1
ENCLOSURE (A)
0

— page 66 —
CONFIDENTIAL
5. ENEMY VESSELS SIGHTED (Continued)
Contact:
No.: Time : Position
20.:0412 K 8/1: Lat. 41-26 N.
:
:Long. 141-31 E
21 :0420 K 8/1:Lat. 41-26 N
:
:Long. 141-30 E:
: Course: Speed!:
: 170°T
: 000°T
22 :0530 K 8/1: Lat. 41-27 N : 170°T
: Long. 141-33 E.
23 :0550 K 8/1: Lat. 41-16 N : 345°T
: Long. 141-33 E.
24 :0740 K 8/1 Lat. 41-19 N : 180°T
: Long. 141-28 E
25 :0819 K 8/1 Lat. 41-12 N : 345°T
: Long. 141-36 E
:

— page 67 —
CONFIDENTIAL
5. ENEMY VESSELS SIGHTED (Continued):

Contact
No.
26
Time
0930 K 8/1
Position
Lat. 41-03 N.
Long. 141-38E.
Course
342°T
Speed
14
Description
Small tanker. Bridge and stack
aft. Two masts. Estimated 4000
tons. Painted dark gray. Name on
side aft in Japanese characters
in white & Japanese Maru flag
'painted on side of superstructure
aft. One hit. Steamer commenced
to settle by the stern.
27 | 0112 K 8/2 | Lat. 40-58 N. | --- | -- | Two white lights, presumed to
| | Long. 142-20 E. | | | be sampans.
28 | 1020 K 8/3 | Lat. 40-11 N. | 340°T | 10 | Small coastal steamer. Estimated
| | Long. 141-53E | | | 2000 tons.
29 | 1150 K 8/3 | Lat. 40-10 N. | 345°T | 12 | Flush deck freighter. Estimated
| | Long. 141-58 E. | | | 4000 tons.
30 | 1350 K 8/3 | Lat. 40-13 N. | 330°T | 14 | Three steamers. 2 small coastal
| | Long. 141-57E. | | | freighters and 1 large flush deck
| | | | | similar to Contact 25. 1 patrol-
| | | | | ling sampan painted white. These
| | | | | ships appeared in a group but not
| | | | | in formation. One small steamer was
| | | | | close to the coast and the other 2
| | | | | about 4-miles off. The sampan
| | | | | was running about half way between.
31 | 2221 K 8/3 | Lat. 40-06 N. | -- | -- | White light of sampan.
| | Long. 142-16 E. | | |
32 | 0214 K 8/4 | Lat. 40-24 N. | -- | -- | White light of sampan.
| | Long. 142-04 E. | | |
33 | 1020 K 8/4 | Lat. 40-28 Ν. | 3509T | -- | Masts and stack.
| | Long. 141-42 E. | | |
34 | 1044 K 8/4 | Lat. 40-28 N. | 340°T | 8 | Sampan painted gray. May have
| | Long. 141-49 Ε. | | | been a patrol. Was not fishing
| | | | | when observed. Had smoke stack
| | | | | amidships. Two masts with an
| | | | | antenna strung between them.
| | | | | Box like structure on stern.

ENCLOSURE (A)

20

— page 68 —
CONFIDENTIAL 5. ENEMY VESSELS SIGHTED (Continued):
Contact
No.
Time
Position
Course
Speed
Description
35
1235 K 8/4
Lat. 40-26 N.
Long. 141-50 E.
Lying to
--
Small open sampan. Obviously
fishing. Three men in it.
36
1538 K 8/4
Lat. 40-25 N.
Long. 141-47 E.
155°T.
12
Typical three island freighter.
Painted dark gray. Estimated 5000
tons. Attacked with negative results.
37
0245 K 8/5
Lat. 40-54 N.
Long. 142-33 E.
180°T.
12
Three island freighter. Estimated
3000 tons.
38
2218 K to
0345.K 8/5
and 8/6
Area south of
Erimo Saki
Light.
Five lighted sampans.
39
2313 K 8/6
Lat. 41-40 N.
Long. 142-55 E.
--
Four lighted sampans.
40
2107 K 8/7
Lat. 41-09. N.
Long. 141-44 E.
--
One lighted sampan.
41
0045 K 8/8
Lat. 41-15 N.
Long. 141-39 Ε.
3500т.
15
Three island freighter estimated
5000 tons.
42
0200 K 8/8
Lat. 41-14 N.
--
Two lighted sampans.
Long. 141-36 E.
43
0512 K 8/8
Lat. 41-22 N.
Long. 141-34 Ε.
340°T.
--
Masts and stack of steamer.
44
0650 K 8/8
Lat.41-18 N.
Long. 141-36 Ε.
350°т.
6
Sampan under sail. Painted white.
Nothing to indicate it as a patrol
except that it was sailing along
the steamer lane.
45
0735 K 8/8
Lat. 41-16 N.
Long. 141-29 Ε.
005°T.
10
Small freighter. Estimated 2000
tons.
46.
1038 K /8
Lat. 41-14 N..
Long. 141-32 E
11
Flush deck freighter. Painted gray.
Heavily_loaded. Estimated 5000 tons.
Flying Japanese Maru flag. One
torpedo hit. Sank in 6 minutes go-
ing down stern first. Underwater
body painted red and was clean.
47
1118 K 8/8
Lat. 41-12 N
Long. 141-32 E
350°T
--
Three island freighter. Painted
gray. Estimated 5000 tons.
-21
ENCLOSURE (A)

— page 69 —
CONFIDENTIAL
5. ENEMY VESSELS SIGHTED (Continued)
Contact
No
Time
Position
Course
Speed
Description
48
2252 K 8/8
Lat. 41-12 N.
130°T
9
Lighted sampan showing tricolored
Long. 143-48 E.
light.
49
0215 K 8/9
Lat. 40-15 N.
135°T
10
Lighted sampan showing tricolored
Long. 143-17 E.
lantern.
50
0504 K 8/9
Lat. 40-32 N.
1400T
6
Small open sampan.
Long. 141-45 E.
51
0933 K 8/9
Lat. 40-16 N.
340°T
15
Patrol vessel built liko small DD.
Long, 142-02 E.
Estimated length 160 ft. beam 20
ft. One stack. Short tripod fore-
mast. Stick stub mainmast. Masts
and stack raked. High short fore-
castle with one 3" gun. Could not
see any other guns.
52
1044 K 8/9 Lat. 40-16 N.
150°T
15
Long. 141-54 E..
53
1249 K 8/9
Lat. 40-18 N.
1600T
--
Masts and stack of steamer.
Long. 141-52 Ε.
E
54 2138 K 8/9
55
2300 K 8/10
56
0500 K 8/11
Lat. 40-05 N.
Long. 147-08 E.
Lat. 40-27 N.
Long. 143-17 E
Lat. 41-35 N.
Jomo. 143-04 E.
330°T
7
Lighted Sampan.
--
E.
2050T
8
Lighted sampan.
Sampan painted gray. Pilot house
amidships. Two masts with radio
antenna between. Did not have depth
charges on stern.
57
0925 K 8/14 Lat. 41-11 N.
Long. 145-50 E.
190°T
Five DD AMAGIRI class. One CA TONE
class. Three of the DD had two.
horizonal white bands painted
around both stacks near the top.

1
22
ENCLOSURE (A)

— page 70 —
CONFIDENTIAL

6. AIRCRAFT SIGHTED
Contact
No.
1
Time
0531 X
7/9
Type
Army B17E
Position
Lat. 23-04 N.
Long. 160-35 W.
Course
2980
Altitude
1500
Description
Plane passed on parallel
course about six miles to
southward and gave no in-
dication of shighting us.
2
1300 X
7/10
Two Irmy
B17E's
Lat. 23-42 N.
Long. 161-45 W.
1050
1500
Planes passed on opposite
course about five miles to
northward and gave no in-
dieation of sighting us.
ENCLOSURE (A)
-
1
3.
0930 K
8/11
KAWANISHI
Type 97N4E
Lat. 41-10 N.
Long. 143-12 E.
0000
2000
This plane was painted a
23
Patrol FLBT
silver green which blended
very well with the sky back-'
ground.
4
0453 Y
8/21
One BBY
three Scout
Bombers
Lat. 28-10 N.
Long. 177-57 W.
At
Rendez-
vous
1500
These planes from Midway
were contacted at prescribed
rendezvous.
5
1010 X
8/23
Cne Navy
PBY
Lat. 24-30 Ν.
Long. 170-22 W.
2900
2000
Exchanged recognition
signals.
6
0735 W
8/25
One Navy
FBY
Lat. 21-55 N.
Long. 162-38 W.
2800
2000
Plane passed about 7 miles
to southward without giving
any indication of sighting
us.

— page 71 —
CONFIDENTIAL

7. SUMMARY OF ATTACKS:
Form report submitted to Comsubpac with original of report.

8. ENEMY A/S MEASURES:

On July 26 after attacking a sampan and while commencing
pursuit of a small steam trawler, a Japanese destroyer (Contact
No. 9) entered the area at high speed and forced us to dive.
Apparently she had been summoned by distress signals from the
trawler. She approached at high speed and was last seen at about
7000 yards with a zero angle on the bow. At that time we went
deep and resorted to evasive tactics and silent running. Her
screws could not be heard and it was assumed that she had stopped
to listen. However, nothing further was heard of her and she was
not in sight when we returned to periscope depth about three hours
later.

It is believed that this destroyer had been sent to the
Yeterofu area after our attacks on the 24th, as on that day we had
things all our own way and no help arrived in response to the
distress calls of the second steamer we pursued and sank.

Sighting of the ship believed to be a minelayer of the
SHIRETOKO class (Contact No. 10) on the afternoon of the 26th leads
to the belief that she may have been despatched to mine some of
the bays along the coast after our presence in the Yeterofu area
was disclosed.

August 1 - While at periscope depth after torpedoing a
tanker (Contact No. 26), depth charges or bombs were dropped on
us unexpectedly by an unseen agent. The first five charges came
very close. After that some were close and others quite distant.
Whether the Japs were conducting an area depth charging or were
tracking us by sound or some external indication could not be
told. Screws could not be heard and we were in doubt as to
whether planes or surface craft were carrying out the depth charg-
ing. We believed the original attack was made by aircraft which
spotted us by our impulse bubbles, torpedo tracks, and periscope.
Depth charging continued until 2007 King - following is a table of
the number dropped each hour:

1011-1100 | 5 | 1500-1600 | 11
1100-1200 | 6 | 1600-1700 | 39
1200-1300 | 5 | 1700-1800 | 16
1300-1400 | 19 | 1800-1900 | 7
1400-1500 | 9 | 1900-2007 | 8
| | Total---- | 125.

-24-

ENCLOSURE (A)

— page 72 —
CO TIDENTIAL
8. DIGY A/S PASURES (Continued):
On August 3 (Contact No. 30) contacted patrolling sampan.
This sampon was painted light grey and was patrolling along the
steamer lanes off the coast in company with a group of three
steamers.
On August 11 Kawanishi flying boat surprised us patrolling
on the surface at 0930 King. Previously at 0500 King we had been
forced to submargo to escape detection by a sampan which was cleai
ly seen as it passed, to have a redio antenna rigged. The plane
may have been summoned to the arce by this sampan which may have
sighted us or it may have been flying a regular patrol.

On August 12 an unseen plane Sooth charged us at 0600
King while we were patrolling at periscope depth on the Kushiro-
Tokyo route. It was a misty morning, visibility estimated at 4000
yards. We were then about 45 miles northeast of the position
where we had been bombed the previous morning. The fact that this
plane discovered us under adverse visibility conditions leads to
the belief that our position had been reported by sonc unseen
sompen in the area where we submerged. At 1911 King three more
denth charges were dropped in the arca very distant. This indicato
that the air search had continued all day.

On neither of these two days were the scrous of surface
ships heard. It is believed that none were summoned to participate
in the search.
---
During our catire stay in Arca
patrol vessels (Contacts Ho 51 and 52) wcro soon. It is believed
only one or two regular
that the primary anti-submarine patrols in this arce arc sampans
and aircraft. It seems most probable that the aircraft do not
conduct reguler patrols but are sent out upon contact reports fro
sempans or ships attacked.

Steamers proceeding along the coast of Honshu hug the shor
line both night and day and in low visibility.

August 14 depth charge attacks by five destroyers. Details
covered in narrative. How our presence was detected by the chomy
formation is a mystery. The sea was choppy and covered with white
caps and periscope cxposures were very limited.
9. AJOR DETECTS:
(.) In the cold weather around Yctorofu the periscope
foged up before one complete sween could be made after reising it.
Furthermore, the sleeve around the periscope sweated continuously
and cach time the periscope was raised this condensate was rubbed
-25-
ENCLOSURE (A)

— page 73 —
CONFIDENTIAL
9. MAJOR DEFECTS (Continued):
off, as the sleeve passed through the gland, and came down as
a shower around the officer making the observation. Officers
wore a rain hat to protect themselves from the deluge. Every
effort should be made to improve our periscopes along the line
of the German model installed in the captured U-boat and des-
cribed by Lieut-Comdr. Headden in his very complete report of
his observations of that submarine.

(B) After the gun engagements on the 24th - a serious air
leak developed in No. 8 H.P. air bank in fuel ballast tank No.
4-D. Presumably the shock of gun firing started the leak. The
bank pressure dropped from 1500 pounds to 400 pounds over a 48
hour period. It was necessary to vent No. 4-D tank inboard
continuously to prevent large air bubbles from forming. Unfor-
tunately, a large bubble had been formed before the trouble was
discovered and it is feared some fuel oil may have been blown
overboard through the compensating system.

Since there was no way of repairing the leak it was
necessary to bleed down No. 8 bank and cut it out completely thus
losing the air capacity of this bank.

(C) While circling on the surface in the fog off
Hitokappu Wan on July 26 it was discovered that we were making
a very noticeable oil slick.

The source of the leaks could not be determined. On the
night of July 27 No. 5 fuel ballast group which had been emptied
of fuel was flushed out. On the morning of July 28 a check for
slick was made again by circling on the surface. Small spots of
oil were seen but no appreciable slick was being left. It is
conjectured that the oil leaks were from the No. 5 group vent
lines. Small spots of oil appeared to still be bubbling up from
the after normal group and it is believed that gunfiring shock
has again started oil leaks around rivets. The slick did not
now appear serious enough to curtail our operations. The sad
history of fuel oil leaks in this ship is well known. During
modernization effective radical measures should be taken to
correct this defect rather than performing another patch work job
of welding and caulking, which jobs have proved by past experience
to be of only temporary effectiveness.

(D) On August 26, while conducting gun attack on a sampan,
the firing lock wedge on No. 1 gun would not move closed freely
after the first salvo. The firing lock was hammered closed for
second and third salvos but could not be closed at all after the
third salvo. At first opportunity in the fog on the surface.
repairs

-26-
ENCLOSURE (A)

— page 74 —
COFIDHITIAL
9. MAJOR DEFECTS (Continued):
were attempted. A now firing lock as installed but could not
be screwed in freely. It was necessary to use a rawhide mollet.
The firing lock operating goer was overhauled but the firing
lock wedge would still not operate. A complete break down and
overhaul of the plug is necessary.
It was further found that the counter recoil differential
piston protruded from the end of the cylinder beyond the allowed
tolerance. To recharge the syston it is accessary to back out
the cun.

There is indication that the liner has crept forward at
the breach and and not crept forvard correspondingly at the muzzle
end and is building up a constriction in the bore. The boro
gage would just pass through noving forvard but required three
mon to pull it through noving aft.

The gun was definitely out of commission for the rencinder
of the patrol.
The guns have fired equivalent service rounds as follow:
Gun No. 1 - 125.13; Gun No. 2 - 130-01. It is recommended that t
ship be regunned during modernization.

(E) Premature explosion of torpedo on attack No. 6

(F) While being depth charged on August 1, the trim pump
operation left much to be desired. It was a choice between lettin
the pump pound and be detected by surface craft listening or
cushioning it with air through the snifter valves which process
pumped air bubbles overboard for detection by aircraft. It is
recommended that this pump be replaced by a suitable quiet running
type during modernization.

(G) While being depth charged on August 1, the after
secondary drain pump could not pump the bilges into the settling
tonk against the sce pressure at 140 feet. In order to save the
mein motors and the mein engine main circulator from flooding it
was necessary to bail the motor room and engine room bilges with
a bucket brigade. The water was dumped into the No. 3 sanitary
tank and the after torpedo room bilges. The secondary dreingege
syston needs a complete overhaul during modernization. All the
secondary drain piping should be renewed.

(II) Bow and stern plane shafting is too noisy. Meer in
the universal joints makes it impossible to quict this shofting
by lubrication. It is recommended that clutches be installed in
this

-27-
ENCLOSURE (A)
σ

— page 75 —
CONFIDENTIAL
9. MAJOR DEFECTS (Continued):
shafting at the forward and after ends to disconnect it while
the planes are operating on power. This alteration was provióüs-
ly recommended by the commanding officer of the KUTILUS and dis-
approved by the bureau. The con anding officer believes that
the subject is so important from the war operations vich point
that it should be reopened and pressed to an affirmative con-
clusion by forces afloat.

(I) When operating bow and stern planes in power, the
agnetic brake solenoid plungers function with à loud bang. This
mechanism should be altered to cushion the impact of these
plungers. The ship's force has attempted to accomplish this by
makeshift rubber and leather cushions without success.

(J) Bow büoyancy and forward group vents leak so cx-
tensively that the bow settles when riding the vents and it is
necessary to blow frequently or close the forward group floods
on power to keep the bów up.

(K) Trouble has been experienced throughout this petrol
with sticking flood and vent valves. Flood and yent velve
operating mechanism needs a complete overhaul.

(L) Main motor bearing glands leak oil into the motors.
This leakage has progressed to the point where it is necessary to
wipe out the notor casings once cach four hour watch. The ship's
force has been unable to check the leakage by adjusting the
glands. Complete repacking is necessary.

(1) The starboard main engine clutch shifting collar
requires constant attention to keep it from running hot. This
mechanisn needs base overhaul and readjustment.

10. RADIO RECEPTION:
While conductiing pursuit of stcamer, Contact No. 3, para-
graph 5, radio watch heard message sent on 500 kilocycles by some
vessel close at hand, presumably a distress message from the
pursued steaner.
く
While conducting pursuit and attack on sampan, Contact No.
7, paragraph 5, radio watch heard message on 500 kilocycles from
vessel close at hand, presumably distress message from stcan
trawler which had come into sight. Huch additional traffic was
then heard on 465 kilocycles.

No difficulty was cxperienced copying JPN "Fox" schedules.

-28-
ENCLOSURE (A)

— page 76 —
CONFIDENTIAL
10. RADIO RECEPTION: (Continued)
Surface and submerged reception of low frequency "Fox" was better
on the loop antenna than the flat top.
Since the installation of the "doughnut" type loop
antenna and coupling unit on this vessel prior to the Battle of
Midway a record of its effectiveness has been maintained and is
tabulated herewith:
Distance
to NPLI
| Signal Strength | Noise Level | Depth of center of loop antenna |
|---|---|---|
| 1000 miles | 5 | 0 | 25' |
| 2000 miles | 4 | 3 | 18' |
| 2400 miles | 3 | 3 | 18' |
| 2700 miles | 3 | 3 | 12' |
| 3000 miles | 2 | 4 | 12' |
| 3350 miles | 1 | 5 | 15' |

Within 1000 miles of NPL a strength five signal, noise
level zero was maintained to a depth of 25 feet. Below this depth
the signal faded and the noise level increased until the signal
disappeared at 40 feet.
In the above table it should be noted that the depth
stated is the depth of the center of the loop, not the keel depth
of the submarine. Even within 1000 miles marked fading occurred
when the loop dropped below 25 feet. It is recommended, therefore,
that these antenna be installed on all type submarines at the
highest point of the periscope shear in addition to the deck
mounted DQ loop. The deck mounting of the DQ loop is at a dis-
advantage of some 20 feet. When this is accomplished it is
reasonable to expect that submarines will be able to receive
tactical signals submerged at a range approximating 2,500 miles,

Last serial received; Consubpac's ADER.

Last serial sent; ERMAL'S RACKET.

Missed Consubpac's despatch IMRVE.

11. SOUND CONDITIONS AND DENSITY LAYERS:
,
Sound conditions varied from poor to very poor, thus con-
forming to the estimate found on H.O. Chart No. 1401-R. Marked
layering was encountered throughout the Yetorofu area and Area **
and temperature gradients were usually positive. Between the
surface and 200 feet the gradient ranged anywhere from -4 to -25
degrees with no apparent continuity from day to day.

-29-
ENCLOSURE (A)

— page 77 —
CONTIDENTIAL
11. SOUID CONDITION ED DESITY LAYERS (Continuca)
Although the background noise level was onerally low,
listening conditions were unpredictable. On August 1 the
freighter (Contact No. 23) was first picked up by sound at a
range of 1,700 yards. Two and a half hours later another
freighter (Contact No. 25) in the same vicinity was not heard
at all, although the range at firing was only 900 yards. Onc
hour later, still in the sanc spot, the tanker (Contact Ho 26)
was heard clearly at 7,000 yards. Again on August 14 thrco
destroyers crossed astern and two crossed ahead at a good
cruising speed without being heard by our best sound opcrator.
Later, during the depth charge attacks no serarbeats were
hcard until AFTER cach pattern had been dropped, at which tinc
all five destroyers could be located on definite bearings.
In several other instances screws came in with good
volunc imediately rather then working up to a crescendo as the
range was closed. In these cases the screws also faded out
abruptly rather than gradually.
Experiences such as these gave us little confidence that
sound would pick up targets in this area at a suitable range to
attack,
12. HEALTH AID HABITABILITY:
At Midway outbound, transferred an electrician's note
third class with gonococcus infection urethre to Sübron DICHT.
Comsubron JIGIT ordered a replacement to this ship.
In general the health of the crew was excellent. There
were no admissions to the sick list. The following complaints
were made and number of treatments Civen as indicated:

Complaint | Cases | No. of Treatnents
:|:-------:|::
Tŭngus infection | 7 | 23
• Colds | 6 | 6
Headaches | 25 | 25
Constipation | 17 | 17
Indigestion | 9 | 17
Sore throat | 4 | 6
Cellulitis (mild) | 2 | 4
Laccrations | 3 | 7
Occlusion of large rt. toe nail | 1 | 1
Forcign body in cycs | 3 | 3
Appendicitis suspect | 1 | 1
Nervousness | 1 | 8
Voniting | 3 | 5
Contusions | 2 | 4
| 84 | 129

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ENCLOSURE (A)

— page 78 —
CONFIDENTIAL
12. HEALTH AND HABITABILITY (Continued):
There was a general nervousness of the crow following
depth charge attack but morale was excellent. There was one
case of acute nervousness but no case of neurosis.
During the cold foggy weather in the Yotorofu Area the
ship was cold and damp. Only two old type heaters were on board.
Supplying the ship with new type heaters is one of the many items
that has been deferred until modernization: They would have been
most welcome on this portion of the patrol.

The choice had to be made between running the air condit-
ioning units to keep down the dampness and not running then to
keep down the cold. They were run most of the time in order to
protect electrical equipment from grounds.
Personnel dressed in submarine clothes and withstood the
unfavorable conditions cheerfully and without any sickness.
When the air conditioning units were secured during long
periods of silent running, the ship became very damp with excessive
sweating.
Except as noted above habitability was excellent.
13. MILES STEAMED ENROUTE TO AND FROM STATION:
Pearl Harbor to Yetorofu (Biro Sentai) - 3096 miles
Reconnaissance of Yetorofu - 410 miles
From Yetorofu to edge of Area--- - 276 miles
Patrolling in Area--- - 1036 miles
Area --- to Pearl Harbor - 3260 miles
8078 Total.

14. FUEL OIL EXPENDED:
184,534 gallons (includes losses from all causes).
15. FACTORS OF ENDURANCE REMAINING:
Torpedocs | Fuel | PROVISIONS | FRESH WATER | PERSONNEL
24 | 10,000 | 40 days | 8,500 | 7 days
(12 in deck | gallons | | |
stovage) | (At Midway) | | (At Midway) |

16. FACTOR CAUSING END OF THIS PATROL:
Fuel.

- 31-

ENCLOSURE (A)

— page 79 —
CONFIDENTIAL
17. REMARKS:
Our submarines are not suitably armed for combatting
motor torpedo boats that may surprise then on the surface in
fog or at night, nor for the destruction of sampans. It is
recommended that at least one and, if practicable, two 20
millimeter guns be installed on each submarine.

An unexpected development, was the penalty paid in
damage to the ship due to the shock of own gunfire. One air
bank was put out of commission with resultant large fuel
losses from the fuel ballast tanks in which it was located,
fuel oil leaks were restarted, and rattles begun in the super-
structure.

When we reported our prospective arrival at Midway
returning in accordance with current instructions, Comsubpac
directed us to designate a rendezvous. This required us to
transmit a second despatch, thereby giving the enemy an
opportunity to obtain a good tracking set up from successive
DF fixes. It is urged that this procedure be discontinued and
that Consubpac designate the rendezvous on the prescribed circle
at any point in the quadrant from which it is known the submarine
is approaching when following the return route prescribed in her
operation order; the submarine to transmit only in case it is
impracticable for her to make the ordered rendezvous.

Throughout the period in Area---, night operations were
restricted almost entirely to charging the batteries due to the
long days down and short nights. It was necessary each night to
use the main engine on charge in order to complete the charge in
the six hour period available. The accomplishment of the battery
charge was vital for had we been forced to remain submerged the
major portion of any night it is improbable that we could have
lasted submerged through the next long daylight period.

Hunting along the East coast of Honshu is good. It is
recommended that another submarine be sent there for operations
in Areas --- and --- combined as soon as one is available.

In closing this report, the Commanding Officer desires to
commend the performance of duty of the entire complement of
officers and men. It was uniformly excellent. The work of
Lieutenant Commander J. A. Flenniken, U.S. Navy, as diving officer
was so outstanding as to deserve special commendation. Worthy of
special commendation also is the alertness of COOK, William
Edgar, Jr., 342 21 82, Scale., U.S. Navy, who while on lookout
watch spotted the plane which attacked us on August 11 immed-
iately it emerged from the clouds thus enabling HILL to
completely submerge before the first bomb struck the water
close aboard.

- 32 - ENCLOSURE (A)

— page 80 —
FB5-42/A4-3
Serial (040)
CONFIDENTIAL
From:
To
:
Subject:
1.
SUL. ARINE DIVISION FORTY TWO
Care of Fleet Post Office;
San Francisco, California,
August 31, 1942.
The Commander Submarine Division FORTY-TWO.
The Commander Submarines, Pacific Fleet.
U.S.S. NARWHAL - Report of Third War Patrol.
This patrol was carried out in a particularly
thorough and aggressive manner in the face of several dis-
couraging casualties to material. The failure of the exploders
to function properly in the instances cited is especially
disturbing because of the adverse effect of such performance on
morale. Every effort is being made to discover the cause and to
take corrective measures.
2.
The sound conditions encountered were evidently
very unfavorable and this may have had a bearing on the
apparent changes made in enemy depth charge practice.
3.
The successful use of the bubble octant is noted
with pleasure and it is considered that particularly fine
navigation was evidenced during this patrol.
4.
The remarks and recommendations concerning
material are in general concurred in and it is expected that
most of the work requested will be accomplished during the forth
coming modernization of this vessel.
5.
The report is most thorough particularly with
regard to the description of the conditions existing in the
areas patrolled.
ENCLOSURE (B)

— page 81 —
FC5-4/A16-3
Serial (0260)
CONFIDENTIAL
From:
To
:
Subject:
1.
SUBMARINE SQUADRON FOUR
August 31, 1942.
The Commander: Submarine Squadron FOUR.
The Commander Submarines, Pacific Fleet.
U.S.S. NARWHAL (SS167) War Patrol Comments on.
-
The fourth war patrol of the NARWHAL was very
successful and conducted aggressively. It is noted that re-
peated use was made of the 6" guns. When bombardment ammuni-
tion is obtained these guns could well be used in surprise
attacks against enemy island bases.
2.
The NARWHAL is scheduled for modernization at
the Mare Island Navy Yard. She will proceed there as soon as
necessary work items are accomplished.

ENCLOSURE (C)

— page 82 —
In reply refer to Initials
and No.
Op-23-F-44
SECRET
SECRET

NAVY DEPARTMENT
OFFICE OF THE CHIEF OF NAVAL OPERATIONS
WASHINGTON 25, D. C.

April 25, 1946

MEMORANDUM FOR CAPT. HENSEL
[HANDWRITTEN: THIRD]
Subj: USS NARWHAL, [HANDWRITTEN: fourth] patrol.

1. The following is a summary statement of the enemy
tonnage sunk or damaged by USS NARWHAL on her [HANDWRITTEN: fourth] patrol,
[HANDWRITTEN: THIRD]
as evaluated in the light of all intelligence received to
date:

Claim | Evaluated Sunk | Evaluated Damaged
Jul 23 '42 | 1,000 tons S | (1) HITERU/M 1,000e |
Jul 23 '42 | 1,500 tons S | (1) - - - 1,500e |
Aug 1 '42 | 6,500 tons S | (1) MEIWA/M 2,921 |
(Aug 1 '42 | 4,000 tons D) | | KOAN/M 885 tons
Aug 8 '42 | 5,000 tons S | (1) BIFUKU/M 2,559 |
TOTAL | 18,000 tons | 7,980 tons | 885 tons

Respectfully,

F. C. Jameson,
Lt.Cdr., USNR.

[STAMP: FOR VICTORY!
BUY
UNITED
STATES
WAR
BONDS
AND
STAMPS]

SECRET

— page 83 —
ISI COPY
[STAMP: RECEIVED]
FF12-10/A16-3(5)/(16) SUBMARINE FORCE, PACIFIC FLEET
ld
Serial, 0721
CONF DECLASSIFIED
COMSUBPAC PATROL REPORT NO. 188
U.S.S. NARWHAL - FIFTH WAR PATROL
[STAMP: COMMANDER
SUBMARINE SQUADRON FIFTY]
From:
To :
The Commander Submarine Force, Pacific Fleet.
Submarine Force, Pacific Fleet.
[STAMP: JUN 29 1943]
FOURTH
Subject:
U.S.S. NARWHAL (SS167) - Report of-Fifth War Patrol.
Enclosure:
(A) Copy of Subject War Patrol Report.
(B) Copy of Comsubdiv 42 Conf. 1st. end. FB5-42/A4-3(5),
serial 10 of May 27, 1943.
(C) Copy of Comsubron 4 Conf. 2nd. end. FC5-4/A16,
serial 0134 of May 28, 1943.
Care of Fleet Post Office
San Francisco, California
June 3, 1943.

1. The NARWHAL's fifth war patrol was carried out following an
extensive navy yard overhaul on the West Coast, during which time the NARWHAL
was re-engined.

2. This patrol was made under the operational control of the Com-
mander Task Group Sixteen point Five. After taking aboard one hundred and five
officers and men of the United States Army at San Diego, the NARWHAL transported
them to Dutch Harbor and subsequently carried out a very important mission which
aided greatly in the successful landing and attack on Attu.

3. No attacks were made. No targets sighted.

4. The Commander Submarine Force, Pacific Fleet, congratulates the
Commanding Officer, officers, and crew, for the efficient manner in which the
NARWHAL organization functioned in handling this large number of extra passengers
for such a long time at sea.

DISTRIBUTION:
(1M-43)
List III, SS.
Special:
C. A. LOCKWOOD, Jr.

P1(5), EN3(5), Z1(5) [HANDWRITTEN: DECLASSIFIED-ART. 0445, OPNAVINST 5510.1C
BY OP-09B9C DATE 5/31/72]
Comsublant (2), X3(1),
Comsubsowespac (2),
Subschool, NL (2),
Comtaskfor 72 (2),
Comsubron 50 (2),
Comsopac (2),
Cinclant (2),
Comtaskfor 16 (1).

[SIGNATURE: E. R. Swinburne]
E. R. SWINBURIE,
Flag Secretary.
50532
87569
DECLASSIFIED

— page 84 —
CONFIDENTIAL
Rs
U.S.S. MARVEL. Report of Fifth War Patrol. Period from August
26, 1942 to May 25, 1943. Area:
Order CTC 16.5 Op Order 17-43 of April 29, 1943.
PROLOGUE
Operation

Arrived Pearl Harbor August 26, 1942, from Fourth Wer
Patrol. Departed September 8, 1942. Arrived Navy Yard, Mare
Island September 15, 1942. Comenced modernization on September
16, 1942, controlling job installation of new main engines. On
October 16, 1942, Lieut-Comdr. F. D. Latta relieved Co dr. C. W.
Wilkins as commanding officer. Completed modernization April 4,
1943, eleven days ahead of original availability. Major items
accomplished: installation of four 278A Wintons, two 300 KW
auxiliary engines, overhaul main motors, installation new battery,
welded all rivets and seams in all fuel tanks, installation SJ and
SD radar, Hark 3 mod. 8 TDC, rebuilt entire superstructure,
installed four deck firing torpedo tubes, regunned 6" battery,
installed four 20 mm, reduced bridge silhouette; outstanding
alterations completed, depermed, Loaded 38 mark 14-3A torpedoes.
Readiness for sea and departed Here Island April 4, 1943. No
training period. Arrived San Diego, California for special mission
on April 6, 1943 and reported to C.T F. 51. Urloaded 32 Mark
14-3A torpedoes, all torpedo skids and handling gear. Destroyer
Base installed 120 additional wood and canvas bunks. Aril 10-17,
1943, embarked 101 enlisted rien and 5. officers of the 7th Scout
Company, Infantry, U.S. Army, for training. Conducted land ing
exercises with rubber boats off San Diego and San Clemente.

1. NARRATIVE:
April 18
1123 (T)
Departed Destroyer B se, San Diego, for Dutch Harbor
with 89 men, 8 officers (ship) 99 men, 6 officers
(U.S. Aray); total on board 202. Sighted various
friendly planes and shipping. Conducted training
dives and drills daily.

April 19. Passed to operational control of C.T.G. 16.5.
0330 (T)
April 25 Sont estimated time of arrivel to C.T.G. 16.5.
2214 ()
April 26
Lat. 51-51N, Long. 157-06W.
0145 (W)
Sighted overtaking vessel astern. Assumed we had been
DF'd. Battle stations, changed course right 90° for 2
Minutes, then 90° right again to develop contact by SJ.
Ran back along track for 30 minutes, nothing sighted,
nothing picked up on SJ or sound. Resumed course,
secured from battle stations.

- 1 - ENCLOSURE (A)

— page 85 —
CONFIDENTIAL
Subject:
U.S.S. NARUHAL. Report of Fifth War Patrol.
April 26 Lat. 52-23N, Long. 158-37W.
0717 (W)
Just after completing right zig, OODaand two lookouts
sighted periscope on starboard beam, distance 500 yards.
Dived. ent deep.Sound reported air noise as of
impulse blast. No screws were ever picked up.
0755 (W) Periscope depth, nothing in sight. Surfaced, sighted
spouts of school of whales or blackfish. Decided not
to send contact report, assumed bridge watch had seen
water breaking over dorsal fin of blackfish.
1037 (W)
1115 (W)
Lat. 52-36N, Long. 159-23.
Sighted smoke, changed course to intercept.
Closed to 1000 yards of Russian freighter, close
enough to see that her guns were manned by occidentals
and not orientals. We have no means of communicating
with Russian shipping She sent "3SGY" and flew those
letters on one hoist plus "Victor 7 pennant Fox" on
another. Ship similar toKUZNETSKSTROJ shown as sample
18, page 3 of "Merchant Ships of USSR". Mounted 3 suns
of about 4".
April 27
0538 (W) tot.
0545 (W)
1205 (V)
1250 (1)
April 28
&&
Y506 Reported for escort.duty.
Entered UINAK pass in snow flurry.
Entered Dutch Harbor, Alaska.
Moored port side to U.S.S. CUYALIA and reported to
C.T.G. 16.5 for duty.
At Dutch Harbor, conducting training exercises with
April 29 troops in conjunction with U.S.S. NAUTILUS. Transferred
2 scanen as chronic seasick cases, one MoM 2c and one
EM3c to C.T.G. 16.5. Received replacements.
April 30 Underway Dutch Harbor enroute ATTU Island.
rising slowly from a low of 28.80.
May 1
Barometer
Making good 7.5 knots with turns on 4 main engines
for 13 knots. Taking seas over bridge.
2340 (1.) Took very heavy sea over bridge. Flooded out 2
May 2
0520 (1)
2230 (1)
May 3
0852 (W)
periscope motor.
Scas quicted enough to increase standard speed to
15 knots.
Crossed 180th Meridian. Did not change zone description
in accordance with provisions of operation order.
Lat. 53-56N, Long. 176-30E, sighted large plane astern
on crossing course, distance 8 miles. Not sighted by
plane.
-
2
-
ENCLOSURE (A)
0

— page 87 —
CONFIDENTIAL
Subject:
-
U.S.S. NARAIAL - Report of Fifth War Patrol.
Jk
1.
HARRATIVE (Continued):
i
Lay 9
Lat. 52-4211, Long. 172-42, sighted Army B-24 planc
1517 (1)
on cásterly course, distance 4 miles, altitude 500
feet. Not sighted by plane.
1529 (7)
Same or similar B-24 approaching from dčad astern, banked
sharply and passed along port side, distance 500 yards,
altitude 200 feet, Cid not answer challenge.
Gave us a
thrill.
Nay 10
0215 (W)
0654 (7)
submerged.
0656 (17)
Received C.T.G. 16.5's YANKEE COVE ordering landing.
Entered Arca
Surfaced, patrolling in heavy fog, remaining west of
Long. 173-00E. In afternoon closed north coast of
ATTU to verify position.
2300 (1)
At rendezvous. Lat. 53-1511 Long. 173-10E.
و
May 11
Contacted NAUTILUS by SJ radar, range 3600 yards.
0002 (7)
Proceeding to SCARLET BRACII.
0200 (7)
0309 (1)
Off SCARLET BEACH, Lat. 52-59.8IT, Long. 173-06E.
Opened hatches, making preparations to disembark troops.
Disembarked detachment of 7th Scout Company, U.S. Army,
Captain William H. Willoughby, 7th Infantry Division,
U.S. Army, C.T.G. 16.5.21.
0311 (7)
Hancuvering to clear beach, began retirement to
Dutch Harbor.
0515 (7)
Entered Arca
Remaining submerged during daylight,
2310 (W)
on course 180 T.
Day 12 &
Lay 13
May 14
1458 (1)
1
0710 (1)
Passed through southern boundary of Arca
Submerged during daylight, retiring through submarinc
route points cnroute DUTCH HARBOR in compliance with
operation order.
Lat. 50-30M, crossed 180th Meridian.
Lat. 50-59H, Long. 177-371, radar contact 8 miles
closed to 3 milcs, range opened to 20 miles. Did not
sight planc in in heavy overcast.
retiring
1545 (7)
Lat. 51-001, Long. 176-581, sighted well dock freight or
hull down, changed to collision course.
1550 (1)
Radar contact 15 milcs, closed to l½ niles, did not sce
plane, range opened out, plane not sighted.
1600 (7)
Sighted PC escort ahead of freighter. Freighter saw us
and turned away, cscort turned towards us and began
closing range.
-
4
-
ENCLOSURE (A)
1
0

— page 88 —
CONFIDENTIAL
ld
Subject: U.S.S. NARWHAL - Report of Fifth War Patrol.

1. NARRATIVE (Cont'd).

May 14
1615 (W) Exchanged recognition signals with PC-603, resumed course.
1845 (W) Lat. 57-05 N, Long. 176-00 W. Radar contact 13 miles, did not
close; did not sight plane.
2248 (W) Sent estimated time of arrival two hundred mile circle to
C.T.G. 16.5.

May 16
0300 (W) Received C.T.G. 16.5's JACKSON PASSAGE giving rendezvous
instructions.
0700 (W) Rendezvous at AKUTAN PASS with AM 84.
1115 (W) Moored at DUTCH HARBOR.

(End of extract delivered to C.T.G. 16.5).

May 17 At DUTCH HARBOR.

May 18
0900 (W) Underway from DUTCH HARBOR enroute PEARL HARBOR, escorted by
AM 84.
1020 (W) While submerged at periscope depth, AM 84 dropped one indoctrina-
tion depth charge set at 150' about 500 yards abeam, for the
benefit of our new men and as a reminder to the rest of us.
1140 (W) Through AKUTAN PASS, released escort.

May 19
Conducted 6 hour battery discharge on surface. Per cent actual
capacity 102.1; per cent performance capacity 98.3. Conducting
daily dives and drills.

May 21
2116 (W) Sent E.T.A. to C.T.G. 17.

May 23
1259 (W) Lat. 30-16 N, Long. 160-06 W, sighted PBY plane on southerly
course, distance 10 miles, not sighted.
2045 (W) Received C.T.G. 17's 240548 designating rendezvous.
2100 (W) Increased speed to full power to make rendezvous on time.

May 24
0758 (W) Lat. 26-12 N, Long. 158-40 W, sighted PBY on northerly course,
distance 10 miles, not sighted.

May 25
0558 (WW) Lat. 21-40 N, Long. 156-55 W. Rendezvous with SEARAVEN.
0610 (WW) Rendezvous with PC583.
Sighted various friendly planes during morning.
1129 (WW) Moored at Submarine Base, PEARL HARBOR.

- 5 - ENCLOSURE (A)

— page 89 —
CONFIDENTIAL
Subject:
ld
U.S.S. NARWHAL - Report of Fifth War Patrol.

2. WEATHER
Weather from San Francisco to San Diego and from San Diego to Dutch
Harbor was generally good. Moderate seas first three days out of San Diego
had members of crew and troops seasick. On the night of May 1, took one sea
over the bridge which had the forward lookout (under bridge canopy) completely
submerged, OOD and two other lookouts in water up to their chests. Depth gauge
read 38 feet. Flood of water down bridge and conning tower hatch lasted about
two minutes. Conning Tower deck was flooded to about one foot. The flow
looked like a close up of AKAKA Falls. Only damage to machinery was flooding
of #2 periscope motor.

Weather on station varied from glassy seas to heavy chop. Skies
were almost continually overcast. All navigation was by piloting and dead
reckoning. No star sights were ever obtainable during period on station.

3. TIDAL INFORMATION
None.

4. NAVIGATIONAL AIDS
Charted headlands on south coast of ATTU Island (H.O. Misc. No.
10,253-1) do not cut in properly. No star fix was ever obtainable to verify,
but it is believed that these promontories are from two to three miles north
of charted positions. Contours of eastern side of ABRAHAM Bay are believed
to considerably move convex in shape than shown on chart.

5. ENEMY SHIPS SIGHTED
None.

-6-
ENCLOSURE (A)

— page 90 —
CONFIDENTIAL
Subject: U.S.S. NARWHAL - Report of Fifth War Patrol.

6. AIRCRAFT SIGHTED:
No.: Date/time: Position: Type :Course: Altitude: Remarks
1 :April 18-:Enroute : Various : -- : -- : Friendly.
:27 Var- :Dutch : : : :
:ious : Harbor : : : :
2 : May 3, : 53-56N :"large" : NE : 2000' :8-10 miles distant seen
:0852 (W):176-30E : : : : briefly
3 : May 3, : 53-57N : "large" : E : 2500': 8 miles distant
:1340 (W) :175-25E : : : :
4 : May 3, : 53-57N :"large : E : 2000' : 8 miles distant
:1806 (W):174-13E : patrol : : : :
: :bomber": : : : :
5: May 5 : 53-10.2N: : E : 1500' : 8 miles distant
:1358): 171-38E : "large" : : : :
6: May 6, : 52-12N: B-24 : E : 1500' : Exchanged signals
: 1650 (W) : 172-14E : : : : :
7 : May 9, : 52-42N: B-24 : E : 500' : 4 miles distant
:1517 (W) : 172-42E: : : : :
8 : May 9,. : 52-42N: B-24 : W : 200' : Passed close aboard
:1529 (W):172-41E : : : : : ignored signals
9 : May 14 : 50-59N: : -- : -- : --- : Radar contact, not sighted
:1458 (W):177-37W : : : : : closed to 3½ miles.
10 : May 14, : 51-00N: : -- : -- : --- : Radar contact, not sighted
:1530 (W):176-58W : : : : : closed to l½ miles.
:
11 : May 14, : 51-05N: : -- : -- : : Radar contact, 13 miles, not
:1845(7):176-00W: : : : : sighted,

12 :May 23, : 30-16N : PBY : S : 1000' : 10miles distant
:1259 (W) :160-06W: : : : :
13 :May 24, : 26-12N: PBY : N : 1000' : 10 miles distant
:0758 () :158-40W: : : : :
14 : May 25, : ΚΑΙΙ : Various : Various : ---- : Friendly
: Various : Channel: : : : :

-7-
ENCLOSURE (A)

— page 92 —
CONFIDENTIAL
Hn
Subject: U.S.S. NARWHAL - Report of Fifth War Patrol.

10. MAJOR DEFECTS (Continued):

During heavy weather the night of May 1, 1943, seas
taken into conning tower grounded out No. 2 periscope motor. Long
and arduous labor on the part of the electrical gang placed No. 2
back in commission by May 3, 1943. This motor had just been over-
hauled and made "water proof" by Mare Island.

Two sections of the new steel deck grating over the
starboard whaleboat were carried adrift by seas and lost.

The micro switches installed on our flood and vent
valves are not satisfactory. The valves and vents cannot be adjusted
to the fine limits required to operate the micro-switch. The basis
for this fault lies in the fact that the old type valves have more
play in their linkage than is allowed for by the operation of the
new type switch.

Prior to departure from Mare Island the ship was found
to be improperly ballasted, being 35 tons too heavy. Mare Island
stated that this apparent discrepancy was due to dive having been made
in bay waters. Enroute San Diego these figures were verified by dives
at sea and information received from Mare Island as to proper tanks
from which to remove lead ballast. Due to short length of time available
this reballasting was not done. Further, it was not required for this
mission inasmuch as 38 Mark 14 torpedoes were removed from the ship.
However, this removal of ballast will have to be accomplished before
a normal war patrol is undertaken.

- 9 -

— page 93 —
CONFIDENTIAL
Subject:
U.S.S. NARWHAL - Report of Fifth War Patrol.
11.
RADIO RECEPTION:
Hn.

All message serials were received on NPG "fox" schedules.
The usual unpredictability of radio signals in the Aleutian area was
experienced on April 27th when radio Dutch Harbor 100 miles away could
not receive us on the 4235 series while radio San Francisco and radio
Honolulu received us strength five.

No trouble was experienced using the DQ loop as a
direction finder. When used as an underwater loop to-gether with the
Mare Island coupling unit, it is completely unsatisfactory as a replace-
ment for the original "home made" loop and coupler manufactured by
the Submarine Base, Pearl Harbor, During trials off San Francisco no
trouble was experienced in receiving NPM's ground wave: at 65 feet,
however, 2200 miles from Pearl NPM is unreadable at 50 feet because
of excessive noise. During fourth war patrol the SubBase loop operated with
S3, W2 signal in the OKHOTSK Sea 2900 miles from Pearl. An improved
design incorporating a tuned transmission line between loop and coupler
plus complete shielding of this circuit seems to be necessary before the
Mare Island coupler will operate on a par with our former SubBase unit.
In addition, plate voltage on the potentiometer is continuous whether
the coupler is in use or not, consequently shortening its life excessively,
leaving the coupler without plate and screen voltage control.

The SD and SJ radars were emminently successful, but
required the full time and experience of our 1st class radar technician.
Parts renewed and minor changes include:

(a) Retuning SD receiver unit complete.
(b) Retuning SD duplexer and diplexer units.
(c) Repacking and tightening pressure hull fittings of SD mast.
(d) Continuous inspection and frequent cleaning of silver plated
disconnect shoes on SD mast to eliminate arcing of transmitter.
(e) A new drip pan under the SJ mast was designed, built and
installed aboard which now eliminates the short circuits in
the slipring caused by seepage.
(f) After 300 hours of operation the following SJ tubes were renewed
in the receiver indicator unit: one 2x2, one 6SN7, One 6AG7,
seven 6AC7, plus the transmitter thyratron #722A, and oscillator
converter #713A. With the renewal of these tubes the receiver
gain increased appreciably. The loss of effectiveness was not
apparent until the SJ failed to pick up a freighter at 7000 yds.

- 10 -

— page 94 —
CONFIDENTIAL
Subject: - U.S.S. NARWHAL - Report of Fifth War Patrol

11. RADIO RECEPTION (Continued):
(g) In order to keep the SJ slip-ring contactors free from condensation
and seepage a small portable electric hair dryer was purchased and
has proven useful. It is recommended that instead of the present
slip-ring assembly flat rings imbedded in a baskelite cylinder be
used to eliminate condensation between the rings and the concurrent
arcing. A cylinder so designed would facilitate cleaning and dry-
ing and might eliminate a major source of submarine radar difficulty.

Last serial sent: ANNA LAKE
Last serial received: KING ISLAND
a

— page 95 —
8
CONFIDENTIAL
Subject: U.S.S. NARWHAL - Report of Fifth War Patrol.

13. HEALTH AND HABITABILITY:

Health of the crew during period of patrol was excellent. Two
enlisted men were placed on the sick list with diagnosis of Catarrhal Fever,
Acute; Total of five sick days.
Attendance at sick call classified as to complaint during the
period April 18 to May 25, 1943 was as follows:

COMPLAINT | CREW | ARMY | TREATMENTS
Catarrhal Fever, Acute | 2 | | 10
Sore throats | 5 | 4 | 9
Tonsilitis, chronic | | 1 | 1
Injuries, minor | 11 | 9 | 26
Bursitis | 1 | 1 | 6
Constipation | 6 | 18 | 24
Colds | 6 | 8 | 18
Cellulitis | 1 | 1 | 4
Headache | 7 | 9 | 16
Indigestion | 4 | 3 | 7
Dental cavities | 1 | 2 | 6
D. U. (Stomach trouble) | 1 | | 5
D.U. (Urethritis, chronic) | 1 | | 6

Habitability has been good although cold damp weather was
prevalent. All men had been provided with warm and foul-weather clothing.

Sanitary needs could not be met at all times due to doubling of
ship's members. During battery charges at meal times, hot water was not
available for washing dishes at the fourth, fifth and sixth messes. Crew's
lavatories could not be kept in a completely sanitary condition due to
continuous use of them. An average of 170 men used four stools. There were
no admissions to the sick list as a result of this condition.

- 12 - ENCLOSURE (A)

— page 96 —
CONFIDENTIAL
Subject:
U.S.S.. NARWHAL - Report of Fifth War Patrol
14. MILES STEAMED:
Pearl to Mare Island
Mare Island and enroute
San Diego
(Including troop training)
San Diego to Dutch Harbor
Dutch Harbor to Area
On station
Area to Dutch Harbor
Dutch Harbor to Pearl
2130
2050
2560
750
1390
1090
2055
15. FUEL EXPENDED:
Pearl to Mare Island
35,580 gals.
Mare Island and enroute
San Diego
(Including troop training)
25,100 gals.
San Diego to Dutch Harbor
56,500 gals.
Dutch Harbor to Area
12,790 gals.
On station
22,800 gals.
Area to Dutch Harbor
15,360 gals.
Dutch Harbor to Pearl
42,100 gals.
16. FACTORS OF ENDURANCE REMAINING:
TORPEDOES FUEL | PROVISIONS (DAYS) | FRESH WATER | PERSONNEL
6 | 55,134 gals. | 40 days | Unlimited | 30 days
17. ENDURANCE FACTOR ENDING PATROL:
Provisions of operation order.

- 13 - ENCLOSURE (A)

— page 97 —
CONFIDENTIAL
Subject:
18. REMARKS
U.S.S. NARWHAL - Report of Fifth War Patrol

Canvas screens were rigged in front of the control panels of the engine
room to prevent water coming through main induction and grounding out instruments.
The screens were only partially successful. Throttlemen had to wear full sets of
foul weather clothing while standing watches and were generally colder and less
comfortable than the bridge watch.

Carrying 105 passengers for a period of 29 days proved to be less un-
comfortable than anticipated. [HANDWRITTEN: COR] on long dives reached 4%. No smoking was
permitted. The Commanding Officer moved to the conning tower, one extra bunk in
the cabin provided accommodations for the troop commander and the army medico.
The second in command used the spare bunk in the Executive Officer's stateroom.
The other three officers used variations of the hot bunk system. The troops
were much cramped for space other than sleeping space. It is believed that for
future such operations, the system as used on NAUTILUS should be adopted. That is
no extra "Chicken coop" bunks be installed, using mattresses on decks of forward
and after torpedo room, plus a modified hot bunk system with the regular crew.
This system gives a much needed deck space for "bull sessions", cleaning weapons,
card games, etc. Army cooks worked with our own commissary department and the
troops expressed themselves as well satisfied with submarine food. Meals were
served almost continually throughout the 24 hours. The army personnel ate after
the ship's company so as to interfere less with the normal change of watches. As
a matter of interest and by statistical proof, army personnel consumed food in a
ratio of 3 to 1 over regular crew. One breakfast of beans required 15 cans to
serve the crew and 43 to feed the troops. At a meal of fried eggs, score: Army 42
dozen. One mess cook resigned after carrying 72 hot cakes to a table of six
soldiers.

Some lack of planning was evidenced by the stock of equipment left
aboard ship by Army personnel. It will be turned over to Army quartermaster depot
at DUTCH HARBOR.

The photographs of SCARLET BEACH taken on May 4 were developed and
enlarged on board. The commander of the scout company expressed himself as well
pleased with the photographs as they enabled him to familiarize his entire de-
tachment with the beach layout.

The loss of our main drain and main drain pump was keenly felt. Prior
to modernization the ship was trimmed for dive 30 to 40 thousand pounds heavy to
"get her under". This water was quickly removed via the main drain before per-
iscope depth was reached. The installation of the negative tank does not fully
perform the same task, since its capacity is only 26,000 pounds.

The destruction of a beautiful and costly piece of machinery like the
ECM is a very painful process.

-14-
ENCLOSURE (A)

— page 98 —
FB5-42/A4-3(5)
Serial (10)
FIRST ENDORSEMENT
CONFIDENTIAL
SUBMARINE DIVISION FORTY TWO
F
Care of Fleet Post Office,..
San Francisco, California,
May 27, 1943.
From:
To
Via:
:
Subject:
1.
The Commander Submarine Division FORTY-TWO.
The Commander Submarine Force, Pacific Fleet,
The Commander Submarine Squadron FOUR.
[HANDWRITTEN: FOURTH]
U.S.S. NARWHAL - Report of Fifth War Patrol.
This was Lieutenant Commander Latta's first war patrol as
Commanding Officer and the NARWHAL's first since modernization. There were
no contacts with enemy forces and no attacks were delivered or sustained.
The mission was accomplished to the complete satisfaction of the Task
Group Commander and to the credit of the vessel under comparatively un-
favorable navigational circumstances.
2.
MATERIAL: The numerous defects experienced are consider-
ed reasonable after such an extensive overhaul. Chief concern is felt
over the periscope vibration but preliminary investigation indicates
the cause to be bearing misalignment and excessive clearances, correction
of which are within the capacity of the base repair facilities. Action
on the ballast adjustment will be taken after a study is completed by
the Design Section of the navy yard.
3.
NARWHAL is scheduled for a ten day training period prior
to next patrol.

ENCLOSURE (B)

— page 99 —
FC5-4/A16-3
Serial 0134
SUBMARINE SQUADRON FOUR
F
Care of Fleet Post Office,
San Francisco, California,
May 28, 1943.
CONFIDENTIAL
SECOND ENDORSEMENT to
NARWHALS Fifth War Patrol.
From:
To :
Subject:
1.
The Commander Submarine Squadron FOUR.
The Commander Submarine Force, Pacific Fleet.
U.S.S. NARWHAL - Report of Fifth War Patrol.
Forwarded.

ENCLOSURE (C)

— page 101 —
C-O-N-F-I-D-E-N-T-I-A-L
U.S.S. NARWHAL

(A) FROLOGUE.
Completed FOURIHwar patrol on 25 May, 1943.
Refit conducted by Submarine Division FORTY-TWO Relief Crew
and Submarine Base, Pearl Harbor. Removed both six inch
guns to Navy Yard, Pearl for overhaul; repaired fuel oil
leaks in after normal and reserve fuel tanks; Submarine
Base manufactured and installed additional support for
after (40ft.) periscope to reduce vibration. Ten day
training period, depermed.

(B) KARRATIVE.
26 June.
1300 VW
Underway from Pearl Harbor, T.H., escorted by
FC 597, Commander Submarine Squadron FOUR on
board. Released escort at dark, Conducted
daily dives and drills enroute MIDWAY, Fired
ten rounds 6" target ammunition during battle
surface drills. Sighted various friendly planes
day of departure.

30 Junc.
0752 Y
1336 Y
Hoored at fuel pier; MIDWAY ISLAND. Received
20,000 gallons fuel, 4890 gallons fresh water.
Underway from LIDAY ISLAND, onroute patrol area.
Sighted various friendly planos during the day.

30 Junc - 3 July.
Uneventful, conducted daily drills and dives.

4 July.
1100 L
Engincor Officer and 3 men removed blanks from
2E and 2F ballast tanks, converting them from
reserve fucl to ballast tanks. Ship scemed
unstable with those tanks filled on surface.

5 July.
Entered fog arca lasting balance of trip to
MATSUWA

6-8 July. Uneventful, conducted daily drills and dives.

9 July.
0128 K
0304 K
Radar contact with ATSUK TO, 23,000 yards.
Dived, approaching TSUNE. Fog continued, running
at periscope depth, occasionally 45' for radar
fixes. Endeavoring to compute current set and
drift, taking frequent soundings over ton hour
pcriod.

-1-

— page 102 —
U.S.S. PARAL

C-O-X-F-I-D-E-N-T-I-A-L
(B) NARRATIVE (Continued)
1337 K Surfaced in fog.
1708 K Fog lifted briefly, had glimpse of peak of IATSUWA.
1714 K Dived, approaching MATSUWA. Fog settled again.
2023 K Surfaced in fog, clearing island to eastward,

10,11,12 July.
Fog conditions continued, running on surface most of
the daylight periods, withdrawing to eastward at
night. SJ in constant use for fixes and search.

12 July.
1930 K Ran south to clear area for radio transmission.
2345 K Completed sending NARL "ABLE", returned to
vicinity of MATSUWA.

14 July.
On surface in fog.
0945 K
Heard radio signals from MATSUWA bearing 201 T
by own direction finder on 450 kcs. Operator
sending series of 'A's and N's ending with ANK.
Visibility 200 yards, no indication of planes
on SD.
1130 K Fog began to lift, sighted MATSUWA bearing 282 T.
1138 K Dived.
1410 K Lat. 48 04.2 N; Long. 153 19.8 E, sighted small
1500 ton coal burning vessel close inshore.
Decided vessel was not large enough to interfere
with bombardment. Stations for battle surface.
Range to air field 7000 yards. Visibility varying,
decided to conduct bombardment of air station now
visible under fog layer.
1445 K Made battle surface. Between last observation and
surfacing, visibility had closed to 2000 yards,
MATSUWA not visible, ordered guns trained in and
secured. FOOTE, Cecil Geincs, 272 79 28, Cox, USN,
fourth powderman, #1 gun, sustained fractured left
ankle during rapid influx of gun crews into forward
gun access trunk.
1450 K Dived, secured from battle stations.
1520 K Visibility improved, reversed course to fire on
northerly leg, stations for battle surface.
1530 K Lat. 48 02 N; Long. 153 20.2 E. On last look prior
to surfacing, sighted two MITSUBISHI 96 bombers in
close formation heading for us at about 1000 feet.
Took ship to 150 feet awaiting bombs.

- 2 -

— page 103 —
C-O--F-I-D-E-N-T-I-A-L
U..S. NARWHAL
(B) NARRATIVE (Continued).

1536 K Secured from battle stations. No bombs, NARWHAL
a parently not sighted. Considering presence of
active air coverage, the first we had seen, decided
time was not ripe for bombardment.
1602 K Feriscope depth, fog had settled.
2014 K Surfaced, heading cast.

15 July.
0352 K Dived, approaching [UNCLEAR: MATSUWA].
0937 K stations for battle surface. Weather cleared,
no planes in air, no activity on air station.
0940 K Lat. 48 00.5 N; Long. 155 22.0 E. sighted same
small coal burning vessel seen yesterday, patrolling
close inshore, heading south. Also one large 5000
ton freighter anchored, or wrecked, close inshore
between BANJO TO and MATSUWA TO.
0945 K Small vessel reversed course, standing to northward.
Sighted NAKATAKE type destroyer, standing in toward
island through RASHUMA KAIKYO.
1000 K Sighted small sampan to northeast. Decided to
attack destroyer, shifted personnel to battle
stations submerged.
1010 K Destroyer headed for us, commenced approach.
1012 K Following initial set up observation, on low power
swoop over island observed one MITSUBISHI 96
bomber with buff colored upper wing, banking in
steep turn heading for NARWHAL. Broke off approach
on destroyer and went deep. Destroyer passed down
port side, No bombs or depth charges. All hands
pleasantly surprised.
1031 K Secured from battle stations submerged.
1300 K Visibility improving until islands 60 miles north
in KURIL chain could be seen from periscope depth.
Decided to wait until sunset and to begin bomb-
ardment from a position 10,000 yards off beach as
best fitted to capabilities of guns. Beach has a
high cliff along eastern edge which will prevent
accurate spotting if in close, also this altitude
of target gives unfavorable angle of fall from
ranges below 10,000 yards.
1954 K Stations for battle surface. Patrol vessel standing
north, close inshore, destroyer and freighter not
visible.

- 3
-

— page 104 —
U.S.S. HARL
C-O-N-F-I-D-E-N-T-I-A-L
(B) NARRATIVE(Continued)
2020K
Made battle surface on course 220 T, 6 miles from
beach, opening range 14,000 yards and began bomb-
ardment of air field on MATSUWA TO. Red rays of
setting sun still visible in north-west. Eastern
edge of MATSUWA in shadow. NARL against dark
background of eastern sky. Had unfavor ble set in
last hour before surfacing. Forward magazine
hoist failed to operate. Serviced both guns
from after magazine hoist, carrying powder and shell
forward on unengaged side. Our fire was slow but
seemed accurate, using hangers as point of aim.
SJ radar out of commission after several salvos.
SD continued in operation throughout bombardment.
No planes were indicated. Fire was concentrated on
hangers and landing strip, hoping to keep planes
grounded. Had all four 20mm manned to cover six
inch gun crews if necessary. One large fire started
on shore. Enemy returned fire after about four
minutes from one gun and in ten minutes, fire was
being returned from a battery of about seven five
inch guns. These were located along bluff at
eastern edge of island. Previous periscope
reconnaissance had not disclosed their presence.
Early return fire was haphazard, 11 local control.
2030 K
Enemy return fire getting closer in range, shells
whistling overhead.
2031 K
Enemy on in range, splashes dead ahead, slight
deflection error.
2032 K
2110 K
Secured guns, changed course away and dived.
Surfaced, headed southeast to clear island. Flames
on beach no longer visible.
2330 K
Transmitted HARL "BAKER" to Comsubpac.
16 July.
Decided to proceed to southern portion of area 1
Able via route inside KURIL chain.
0525 K
Fog set in again, visibility 1000 yards.
1000 K
Set course for KITA URUPPU SUIDO and OKHOTSK SEA.
2000 K
Proceeding through strait in heavy fog.
17 July.
0444 K
Lt. 46 54 N; Long. 150 22 E., radar contact
3100 yards on starboard bow.
0446 K
Dived. Sound picked up light screws as of sampan
apparently close aboard. Nothing observed through
periscope while following sound bearings along
starboard side. Surface visibility 200 yards.
Did not desire to disclose location by engagement
with sampan.

- 4 -

— page 105 —
U.S.S. FLASHER

C-O-N-F-I-D-E-N-T-I-A-L
(B) NARRATIVE (Continued)
0515 K
Surfaced. Proceeding down west coast of URUPPU TO
maintaining position 8 to 10 miles off coast by
radar. Heavy fog continued.
2300 K
When west of YATOROFU KAIKYO fog cleared, visibility
excellent, bright moon. Similar weather conditions
as FLASHER experienced in same area in July of 1942.

18 July.
0353 K
Dived off IKABANOTSU IDANI. Patrolling submerged
during day, 4 to 12 miles off, on north and south
courses, covering likely shipping routes east and
west long YETOROFU via KUNISHIRI SUIDO and NEURO
KAIKYO.
2043 K
Surfaced, proceeding toward YETOROFU KAIKYO.

19 July.
0100 K.
0145 K
Fog closed in.
Lat. 45 38 N; Long. 149 05 E., while proceeding
through YETOROFU KAIKYO, radar contact on port
bow, very small pip. Avoided on surface. Visibility
200 yards. Contact closed to 700 yards and passed
down port side. Not sighted. Proceeded through
YETOROFU KAIKYO and southwest along southern coast
of YETOROFU toward SHIKOTAN JIMA. Plan to patrol
off MATSUGAHAMA for one day if clear of fog, then
to proceed to southern edge of area 1 Able and
patrol off KUSHIRO.

20 July.
0200 K
0315 K
Radar contact on high rock of SHIKOTAN JIMA.
Been running patrol line off SHIKOTAN JIMA
on southeast-northwest line, keeping position
by soundings in heavy fog.
0855 K
Changed course to southwest along island chain,
hoping for better weather. Running blind in fog
five to fifteen miles off naval base seems
unprofitable.
1800 K
Reached southern limit of area 1 Able, changed
course to return to northeast in direction of
SHIKOTAN JIMA.
1930 K
Received Comsubpac's 200849.
2015 K
Changed course to 090 to open out from coast for
radio transmission.

-5-

— page 106 —
U.S.S. FRAL
C-O-N-F-I-D-E-N-T-I-A-L
(B) NARRATIVE (Continued)
21 July.
0013 K
1330 K
Completed transmission of KARL "CAST".
Departed from Area 1 Able, heading southeast
through special area of patrol boat cont.cts.
Steering sixty percent zigzag to cover wide arcc.

23 July.
0133 K
Running in and cut search along possible anany tracks

24 July.
0900 K
1600 K
No. 4 main engine out of commission with two broken
cylinder head bolts.
No. 4 main engine in commission.

25 July.
0800 K
Having czhausted 1l possible enemy tracks with no
contacts, again set c urse through are of patrol
boat cont.cts.
2130 K
2217 K
Received Comsubp.c's Scril 76.
Altered curso to sorch patrol boat cert.cts.

26 July.
0800 K
Lat. 36 35 N; Long. 152 34 E., baromotor falling,
hovy swells, wind building up to forcc 6.
1122 K
Lat. 36-15; Long. 152 45, plane contact on SD radar,
9 miles, closing. Divcd. Unable to amintain
perisc pe copth at 70 feet in heavy swells. Plane
not sighted, At this point we worc 540 miles from
HONSHU nd 600 miles from MARCUS. Styed down for
lunch.
1323 K
Surfaced.
Continued on surf.cc, cruising over a 92% zigzag
plan supcrimposed on four hour logs 20° to right
and left of basc course botwoon possible e ntact
points to cover maximum aroa.

27-29 July.
Uneventful, conducted daily dives and drills.

-6-

— page 107 —
U.S.S. KREAL
C-O-N-F-I-D-E-N-T-I--L
(B) NARRATIVE (Continued)
31 July.
1130 L Lat. 30 12 N; Long. 157 46 E. Plane contact on
SD radar, 18 miles, contact faded out, did not give.
1405 L Completed search of possible contact points in
prescribed area, set course for PEARL via prescribed
routing.
31 July. Uneventful.
1 Aug.
2100 L Sent KREAL "DOG" to Comsubpac.
2 Aug. Uneventful.
3 Aug.
1332 M Lat. 25 30 N; Long 179 15 E., sighted plane on
starboard quarter, approaching ship. Dived. No
indication on SD.
1340 M Fired two smoke bombs after identifying plane as
U.S. Navy PBY by periscope observation. Believe
KREAL not sighted.
1350 M Surfaced, Plane not in sight.
4 - 6 Aug. Uneventful.
7 Aug.
1230 VW Moored at Sub Base, Pearl.

-7-

— page 108 —
C-O-N-F-I-D-E-N-T-I--L
(C) WEATHER.
U.S.S. FARALL

Entered fog area at 0200 GCT, 4 July, in Lat.
40 10 N; Long. 168 05 E. Fog continued with brief periods
of horizon visibility until 2200 GCT, 14 July, off MATSU TO
in KURIL ISLANDS. Seas during this period were calm with
light winds. After one day of excellent visibility and calm
seas, 15 July, fog again settled during southerly run to
KITA URUPU SUIDO and in OKHOTSK SE off western shore of
URUPPU TO, lasting until 1300 GCT on 17 July, off northwest
coast of YETOROFU. Weather remained clear on 18 July off
IKANOTSU MISAKI. Returning to Pacific through YETOROFU
IAIKYO on 18 July, fog again settled at 1500 GCT. This fog
condition continued remainder of time in area, extending as
far south as Latitude 43 N, and to the eastward as far as
148 40 E. Winds during this latter period were from SW.
from south. East of 148 40 E, weather cleared and temperature
rose. Weather remained pleasant during southeasterly run,
until a position in Lat. 36 35 N; Long. 152 34 E. where
barometer began falling, heavy swells from S.E. building
up to force 6 winds from SSE, low barometer of 29.62. Ran
out one day later.

(D) TIDAL INFORMATION.

Tidal currents varying from zero to four knots
were encountered off MATSU TO. Both set and drift were
variable and unpredictable, but southerly sets predominated
both in intensity and duration. Current effects were most
noticeable within five miles of island. Tidal information
on charts seemed generally accurate.

(E) NAVIGATION AIDS.

None.

-8-

— page 109 —
C-O-N-F-I-D-E-N-T-I-A-L
(F) SHIP CONTACTS.
U.S.S. PARCHEL
Timo
No. Date
:
Lat.
Long.
:
Type(s)
Initial
Range.
:
Est.
Course
Specd.
:
How
Cont-
acted Remarks
:
:
:
:
:
1: 1410 K:48 04.2 N : Patrol : 8000
: 14 Jul:153 19.8 E: (1000T): Yds.
: South:
:
5
:
P:Small freighter
:typo,cnginc aft,
:coal burning, high
:bow,ncw wooden
:scction built up
:anidships.
:

— page 110 —
C-O-N-F-I-D-E-N-T-I-A-L
U.S.S. KAMELL
(G) AIRCRAFT CONTACTS.
Time Lat.
Initial Course
How
No. Date Long. Type(s) Range Altitude Contacted Remarks.
1:1530 K:48 02 N : (2) : 2 : 06.0 : :Two planes in
:14 Jul:153 20 E: NELL: Miles : 1000 ft.: P :close format-
:ion.
2:1012 K:48 00 N : 2 : Banking : :Upper surface
:15 Jul:153 22 E: NELL: Miles : 500 ft. : P :of wing paint
:ed buff color
3:1122 K:36 15 N : Unkno-: 9 : Unkno- : :Contact on
:26 Jul:152 45 E: wn. : Miles : wn. : R :SD, not sight
:cd.
4:1130 L:30 12 N : Unkno-: 18 : Unkno- : :Contact on
:30 Jul:157 46 E: wn. : Miles : wn. : R :SD, not sight
:cd.
5:1332 M:25 30 N : 11 : 040 : :No indication
: 3 Aug:179 15 E: PBY : Miles : 1500 ft.: SD :on SD radar.

P--- Periscope,
R--- Radar.
SD--- Surface, Day.

(H) ATTACK DATA
U.S.S. KAMELL GUN ATTACK NO. I PATROL NO. 6.
Time 2020 K - Date 15 July - Lat. 48 02 N; Long. 153 25 E.

Target Data - Damage Inflicted

Target - Air Station at MATSUMOTO in KURIL ISLAND Chain.
Point of Aim - Hangers at northern end of landing strip.
Large fire started.

Details of action

Fire opened at 14,000 yards range with two 6 inch
53 caliber guns, using H.C. ammunition and flashless powder.
Forward magazine hoist would not hoist. Serviced both guns
from after hoist. Fault later determined to be missing pin
in linkage between upper door and interlock switch. This
derangement caused an open circuit on hoist mechanism. Total
rounds fired, thirty-one.

-10-

— page 111 —
U.S.S. NARWHAL

C-O-N-F-I-D-E-N-T-I--L
(I) [HANDWRITTEN: None.]

Nonc.
(J) ANTI-SUBMARINE MEASURES AND EVASION TACTICS.

Nono.
(K) MAJOR DEFECTS AND DAMAGE.

(L) RADIO.
Nonc!!

Radio reception was only fair, however all serials
received were completo. Rocoption was especially poor on all
high frequencies except 8235 kcs. It is recommended that
NFM net secure both that frequency and it's low frequency
transmissions at the same time.
Observations were made on the tests run by Radio
Onhu with the following results:

| D.tc     | G.C.T. | Freq.   | Signal strength | Read-ibility | Interference | Atmospherics | July 11 :| 1000   | : 12540 | : 2             | : 3          | : None        | : Bad fading.|
| July 11 :| 1200   | : 12540 | : 5             | : 5          | : None        | : Good.      |
| July 11 :| 1200   | : 9090  | : 5             | : 2          | :3 Stations  | : Good.      |
| July 13 :| 1200   | : 113   | : 0             | : 0          | : W-5        | : Bad.       |
| July 17 :| 1000   | : 12540 | : 0             | : 0          | : None        | : Good.      |
| July 17 :| 1200   | : 9090  | : 0             | : 0          | : None        | : Good.      |
| July 20 :| 1200   | : 12540 | : 0             | : 0          | :Several Stations: | : Good.      |
| July 20 :| 1200   | : 9090  | : 0             | : 0          | : None        | : Good.      |
| July 22 :| 1000   | : 9090  | : 0             | : 0          | : None        | : Good.      |
| July 22 :| 1000   | : 113   | : 0             | : 0          | : W-5        | : Bad.       |
| July 25 :| 1200   | : 113   | : 0             | : 0          | : -5         | : Very Bad.  |

Last Serial Received 33
Last Serial Sent DOG

-- 11 --

— page 112 —
U.S.S. [UNCLEAR: R.E.A.L.]

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

(1) R.L.R.
Both radars operated satisfactorily throughout the
patrol, due to the constant supervision of our Radar Tech-
nician.

(N) SOUND CONDITIONS.
Sound conditions ranged from fair to good, being
generally better than encountered on the previous patrol
in these waters.

(0) DENSITY LAYERS.
Several density layers were encountered off
[UNCLEAR: I.T.S.U.]... As much as 7000 pounds needed to be pumped out
periodically to hold boat at periscope depth. This weight
then had to be flooded in rapidly again after passing through
the layer. These layers were indicated on bathy thermograph
by erratic temperature rises.

(P) HEALTH, FOOD AND HABITABILITY.
General health condition of the crew has been
excellent. Three enlisted men were placed on the sick list
for the following:
:
:
:
*Fracture, simple, left tarsus.
:
*Appendicitis, acute. (Discharged to duty feeling very well
after treatment).
*Kidney stone colic with complication of left testicle (orchiti.
The fracture case and kidney stone colic have done except-
ionally well under conditions.
One case of two ribs possibly fractured was treated and left
on light duty.
:
:
The following complaints were treated at sick call:

Sore throats - 2
Headaches. - 6
Injuries (minor) -15
Constipation. - 8
Colds -10
Cellulitis. - 3
*Dental cavities. - 3
Intestinal disturbances. - 1
*D.U. (Urethritis, chr.) - 3
Conjunctivitis (acute) - 9
Scabies. - 2

- 12 -

— page 113 —
C-O-N-F-I-D-E-N-T-I-L
U.S.S. [UNCLEAR: HAWK]L.

(P) HEALTH, FOOD AND HABIT.BILITY (Continued)
A physical examination was hold for all members
of the crow. All were found in very good condition.

Galloy and moss wore sanitary at all times, food
"was excellent, nd water was available at all times.

* will be taken to Dispensary for further diagnosis and
treatment.

(2) PERSONNEL.
All personnel withstood long monotonous days waiting
for fog to lift without evidence of strain. Gun crows, working
for the first time under cnomy return fire operated smoothly,
though many woro now mon. Ammunition handling party showed
grotest 1ck of experience as the casualty to number onc
hoist was not remedied until just before guns were ordered
to sccurc.

(R) MILES STEAMED - FULL USED.
(FARL to aron
3298 milcs
52;110 gals.)
In aron
2013 milcs
24,367 gals.
:}
(rca to FARL
4675 miles
75,971 gols.)

(5) DURATION.
(Days enroute to pro
11)
(Days in aron
13
Days enroute to PiRL
18
(Days submerged.
3)

(T) FACTORS OF ENDURANCE REMAINING.
| Torpedoes | Fucl | Provisions | Personnel Factor |
|---|---|---|---|
| 30 | 1500 gal. | 48 days | 18 days. |

Limiting factor this patrol provision of portion order.

- 13 -

— page 115 —
C-O-N-F-I-D-E-N-T-I-A-L
(U) REMARKS (Continued)
U.S.S. NARWHAL

It is a pleasure to report that the additional
su port built for NARWHAL number three periscope by the
Submarine Base, Pearl Harbor has proved very satisfactory.
Further, the work done on the fuel tanks in stopping fuel
leaks was successful. The work involved was a continuation
of the Mare Island job of welding rivets and seams in fuel
tanks.

- 15 -

— page 116 —
FC5-4/A16-3
Serial (0207)
SUBMARINE SQUADRON FOUR
Care of Fleet Post Office,
San Francisco, California,
12 August, 1943.
C-O-N-F-I-D-E-N-T-I-A-L
FIRST ENDORSEMENT to
Consubdiv 42 Conf. Ltr.
FB5-42/A16-3 Serial 020
of 8 August 1943.
Fran:
To :
Via:
Subject:
1.
The Conmander Submarine Squadron FOUR.
The Commander-in-Chief, Pacific Fleet.
The Commander Submarine Force, Pacific Flect.
U.S.S. NARWHAL - Fifth War Patrol - Comments on.
Forwarded. The fifth war patrol of the NARWHAL
was well conducted and the primary mission, bombarding the air
field on MATSUNA TO, was successfully accomplished. The patrol
was handicapped by fog and failure of the forward annunition
hoist.
2.
The Squadron Commander concurs with the recon-
medation of the conmanding officer that a simplified director
control be installed in NARUHAL and NAUTILUS to increase effi-
ciency of bonbardment.
Copy to:
CSD 42
CO NARWHAL

— page 117 —
FB5-42/A16-3
Serial ( 020 )
CONFIDENTIAL
From:
To :
Via:
Subject:
1.
SUBMARINE DIVISION FORTY TWO
1
Care of Fleet Post Office,
San Francisco, California,
8 August 1943.
The Commander Submarine Division FORTY-TWO.
The Commander-in-Chief, Pacific Fleet.
(1) The Commander Submarine Force, Pacific Fleet.
(2) The Commander Submarine Squadron FOUR.
-
U.S.S. NARWHAL
Fifth Wer Patrol
Comments on.
The fifth war patrol of the NARWHAL covered a
period of forty-two days, thirteen of which were spent in the
assigned area and ten days investigating reported patrol boat
contacts. A reconnaissance and bombardment of KATSUWA was
carried out. The reconnaissance was well conducted in spite
of adverse visibility conditions. No periscope photographs
were obtained. The additional information obtained of the
air station should be especially valuable for any future
operations in that locality. The bombardment was handicapped
by the reduction in ammunition supply (forward hoist out of
commission) and the unexpected intensity and accuracy of gun
fire from shore installations.
2.
HATERIAL
:
The NARWHAL returned from patrol in a very good
material condition. The design and installation of a simpli-
fied director system as requested by the NARWHAL should be
given every consideration. A normal refit period is indicated
during which every effort to determine cause of SJ going out
during gunfire will be nade. Details of the extension for the
periscope support will be reported in separate correspondence.
The work involved in stomping fuel oil leaks has been reported
to the Navy Yard, liare Island.

— page 118 —
FF12-10/A16-3(5)/(16)
SUBMARINE FORCE, PACIFIC FLEET
1d
Serial 01095
Care of Fleet Post Office,
CONFIDENTIAL
San Francisco, California,
13 August 1943.
SECOND ENDORSEMENT to
NARWHAL Report of
Fifth War Patrol.
COMSUBSPAC PATROL REPORT NO. 233
U.S.S. NARWHAL - FIFTH WAR PATROL.
From:
To :
Via :
Subject:
Enclosure:
1.
The Commander Submarine Force, Pacific Fleet.
The Commander-in-Chief, U. S. Fleet.
The Commander-in-Chief, U. S. Pacific Fleet.
U.S.S. NARWHAL (SS167) - Report of Fifth War Patrol,
(June 26 to August 7, 1943).
(A) Copy of subject war patrol report.
(B) Copy of Comsubdiv 42 Conf. ltr. FB5-42/A16-3,
Serial (020) dated 8 August 1943.
(C) Copy of Comsubron 4 Conf. 1st. end. FC5-4/A16-3,
Serial 0207 dated 12 August 1943.
This is the fifth war patrol of the U.S.S. NARWHAL. Attention
is invited to the renumbering of this patrol report. This has been done because
the first war patrol was a peace-time patrol terminating prior to December 7,
1941. All previous patrol reports of the NARWHAL should be renumbered accordingly

2.
Most of the time spent by the NARWHAL in the area was handicapped
by dense fog. In spite of this, the main mission of the NARWHAL was successfully
carried out. This main mission was bombarding MATSUWA Air Base, which operation
was well planned and executed. Part of the bombardment was made under intense
enemy fire from ashore.
3.
islands was carried cut.
In addition to the above mission reconnaissance of several Kurile
This patrol is considered successful for Combat Insignia award.
4.
5.
The Commander Submarine Force, Pacific Fleet, congratulates the
Commanding Officer, officers, and crew for the successful completion of their
mission and damage to an important enemy air base.

Distribution and authentication
on following page.
-1
-
C. A. LOCKWOOD, Jr.

— page 119 —
FF12-10/A16-3(5)/(16)
SUBMARINE FORCE, PACIFIC FLEET
1d
Serial 01095
Care of Fleet Post Office,
San Francisco, California,
13 August 1943.
CONFIDENTIAL
SECOND ENDORSEMENT to
NARWHAL Report of
Fifth War Patrol.
COMSUBSPAC PATROL REPORT NO. 233
U.S.S. NARWHAL - FIFTH WAR PATROL.
Subject:
DISTRIBUTION:
-
U.S.S. NARWHAL (SS167) - Report of Fifth War Patrol,
(June 26 to August 7, 1943).
Intel. Cen, Pac. Ocean Areas (1);
Cominch, VCNO (5 ea), Cincpac (6);
Cinclant, S/M School NL, Comsopac,
Comsubsowespac, CTF 72, SUBAD MI,
ComsubspacSubordcom, All Squad. &
Div. Comdr. (2ea); Serforpac (Adv.
Base Plan. Unit), Comsowespac, CTF 16,
NARWHAL (1ea); Comsubslant (8);
Comsubspac (12);
All SS Subspac (less enclosures) (1).
[SIGNATURE]
R. C. LAWVER,
Flag Secretary.

— page 121 —
CONFIDENTIAL

U.S.S. NARWHAL
REPORT OF
SIXTH WAR PATROL

From: 31 August 1943 - To: 2 October 1943

(Not to be taken to sea by submarines - BURN)

[STAMP: Office of the Chief of Naval Operations
FLEET MAINTENANCE
OCT 27 943
(RECEIVED)
NAVY DEPARTMENT]

RECEIVED S-C FILES
Room 2055
27 OCT 1943
ROUTE TO:- 23,056Y/16E2
Op File No. A/6-3/(23)/55167
97849
Doc. No
Copy No. 1 of 2..
FINISHED-NEWCOMペード16枚

— page 122 —
FF12-15(72)/A16-3/Pk
Serial 0310
CONFIDENTIAL
TASK FORCE SEVENTY-TWO,
Care of Fleet Post Office,
San Francisco, California,
10 October 1943.

From:
To
:
The Commander Task Force SEVENTY-TWO.
The Commander in Chief, UNITED STATES FLEET.
Via: (1) The Commander, THIRD FLEET.
Subject:
1.
U.S.S. NARWHAL (SS167)
on.
-
Sixth War Patrol; comments

The NARWHAL's Sixth War Patrol began on her depart-
ure from Pearl Harbor, 31 August 1943. On her first day while
still under escort, a submarine periscope was sighted close a-
board. NARWHAL turned away, no further contact. On 8 Septem-
ber she entered her area, MILLI ISLAND, and made a two day sub-
merged reconnaissance of the Islands of that atoll. She made a
full speed run to NAURU to intercept a convoy and on the dawn
of her arrival, 11 September, contacted an unidentified 6,000
ton ship standing in toward NAURU. Unable to reach an attack
position by dawn, NARWHAL was deterred from immediate submerged
attack on the enemy ship at dock by off-shore surface and air
patrols. A long-range shot was being contemplated after study
of currents, when she sighted a second escorted 4,500 ton
freighter-transport standing in which she attacked, firing two
torpedoes for one hit. When last seen enemy was listed 25° and
burning fore and aft. Firing two torpedoes from deck tubes at
approaching escort, without results, NARWHAL went deep and was
severely depth charged. She spent the remainder of day at deep
depth, correcting minor damage and holding depth control with
difficulty against leakage. She departed for KWAJALEIN Atoll
that night. After reconnoitering LIB Island on 13 September
with no contacts, stood up to GEA Pass and on 15 September was
patrolling off North Pass. Extensive plane activity was noted
during morning. At noon she sighted a convoy of one light
cruiser of YUBARI class, apparently damaged, escorted by a
SENDAI class cruiser and four or more destroyers. While making
approach, NARWHAL was possibly detected and she went deep to
avoid torpedoes, heard running by sound astern. Again depth
control was difficult and the attack was abandoned. KWAJALEIN
Atoll was searched 17
20 September with no contacts except
-
a small patrol vessel which was avoided. A further survey of
GEA Pass was made on 22 September and on 23 September, after
fourteen days in area, NARWHAL departed area for BRISBANE via
TULAGI. She arrived 2 October 1943, completing an uneventful
trip and a patrol of thirty-one days.
2.
Only two torpedoes were fired in NARWHAL's attack
against the freighter approaching NAURU, giving one hit which

- 1 -

— page 123 —
FF12-15(72)/A16-3/Pk
Serial 0310
CONFIDENTIAL
TASK FORCE SEVENTY-TWO,
Care of Fleet Fost Office,
San Francisco, California,
10 October 1943.
Subject: U.S.S. NARWHAL (SS167) - Sixth War Patrol; comments
on.

— page 124 —
SS167/16-3
Serial 023
C-O-N-F-I-D-E-N-T-I-A-L

From:
To :
Via :
U.S.S. NARWHAL
Care of Fleet lost Office;
San Francisco, California,
2 October 1943.
The Commanding Officer,
The Commander in Chief, United States Fleet.
(1) The Commander Subm rines, seventh Fleet.
(2) The Commander Submarine Division FORTY-TWO.
(3) The Commander Submarine Squadron FOUR.
(4) The Commander Submarine Force, Pacific Fleet.
Subject:
U.S.S. NARWHAL, Report of War Patrol Number SIX.
Enclosures:
(A) Subject Report.
(B) Track Chart.

1.
Enclosure (A), covering the sixth war patrol of
this vessel conducted in MARSHALL Islands and off NAURU Island
during the period 31 August, 1943 to 2 October, 1943, is for-
warded herewith.

[SIGNATURE: F. D. Latta]
F. D. LATTA.

— page 125 —
C-O-N-F-I-D-E-N-T-I-A-L
U.S.S. NARWHAL
(A) PROLOGUE
Completed fifth war patrol on 7 August 1943. Refit con-
ducted by Submarine Division FORTY-TWO relief crew and Submarine
Base, Pearl Harbor. Drydocked 23, 24 August for painting, depormed,
sound tested, three day training period.

(B) NARRATIVE
31 August
1300 VW. Underway from Pearl Harbor, T.H. escorted by PC588. Made
deep dive for tightness and oil leaks. No leaks visible.
1800 W Lat. 20-46 N., Long. 158-31 W. stern lookout reported
periscope on starboard quarter. Not sighted by OOD. Look-
out experienced and stated four feet of scope exposed
briefly, showing wake and then lowered. Turned away, bo-
gan calling escort.
1901 W sent NARWHAL ABLE to COMSUBPAC reporting contact.
1910 W FC588 released to search area of contact.
2137 X Number 3 main engine out of commission, due to faulty
cylinder head gasket.

1 September
1220 X Number 3 main engine back in commission.

2 September
1536 X Held battle surface drill. Number 2 main engine out of
commission with bent rod. See major defects.

3-5 September
Uneventful, holding daily dives and drills.

6 September
Omitted.

7 September
1002 M Sighted overturned lifeboat, passed close aboard. Typical
double ended, carvel planked lifeboat carried by commercial
vessels. Badly weathered, had been printed white, looked
as though it had been in the water for several weeks.
2155 M Number 2 main engine back in commission.

8 September
0510 M Entered area FORTY-TWO.
0542 M Dived to conduct submerged approach on northern atolls
of LILI Island.
1908 H Surfaced.
2004 H Sighted beam of large searchlight below horizon bearing
255 T. Light swept over us and back, stayed lighted
about one minute. Beam reappeared several times during
night and mid watches.

- 1 - ENCLOSURE (A)

— page 126 —
C-O-N-F-I-D-E-N-T-I-L
(B) NARRATIVE (Cont)
U.S.S. NARWEAL
2323 M
Received CTF 17's serial TWENTY-THREE.
9 september
0545 M
Dived to conduct submerged patrol off northern atolls of
HILI Island.
1825 L
Surfaced off TOKARn Channel, radar range to largest
island 14,000 yards.
Six atolls in sight, radar only
able to pick up onc, others probably too low in water
and of too little land mass,
2208 L
Received CTF 17's despatch 081815.
2352 L
Changed course to 2090T and increased speed to 17 knots,
heading for NAURU Island, Bright moonlight, using SD
radar at frequent but irregular intervals searching for
plancs.
10 september
0500 L
Departed area TWENTY-TWO,
1750 L
Number 4 min engine out of commission. Air starting
valve stuck open, became red hot and fused.
Replaced and
at
1858 L
Il four ongines back on linc.
11 September
0315 L
Crossed aquator.
0400 L
_ssumed that we had re choo track of any vessels procccd-
ing from C. ROLINE Islands to NAURU. Changed course to
150°T, heading for MURU.
0443 L
Lt. 0-32 S., Long. 166-54. radar contact on starboard.
bow, 23,000 yards, believed to be ship, and contact on
port bow 26,000 yards, believed to be NAURU. Attempted
to close ship contact before it became necessary to divo...
0452 L
Changed course to 180°, still trying to get in ahead of
ship contact.
0502 L
Unable to close contact, getting very light, dived and
continued approach, hoping ship would lic off for pilot
or tugs.
0545 L
Sighted 6000 ton AF or AK, renge 12,000 yards, boing
manouvered off NAURU. Experienced strong westerly sot
stocring 1550T to make good 180°T,
0602 L
Lt. 0-31 5., Long. 166-53 L. sighted four small convertcå
yacht type patrol vessels near frcighter.,
0650 L
Lat. 0-31 5., Long. 166-53 E. sighted three low wing
bombers, type "TE", in close formation flying inland.
ever freighter. The potential torget had by now boon
warped crocund until she presented about a 1400 port
truck. Considered the possibility of low spoed shots

- 2-
NCLOSURE (2)

— page 127 —
.U.S.S. NARWAL
C-C-N-F-I-D-E-I-T-I--L-
(5) NAROTIV (Cont)
:
from long range, but felt the currents too variablo
and uncertain to insure hits. If we continued on
present course south to a point abreast of jotty, thc
target would present a 170° track. To move in toward
the bench in order to gain a more favor blo track at
close rened would necessitato running in to about 800
y rcs from the bench. Two patrolling vessels were bc-
ticon nend target. Decided to delay attack for the
menent since target would probably stay at least six
hours and in that time we could got a nere accurato
picture of the currents. Turned away from NURU to
northward.
0718 L
sound picked up high spoed scrows astern. Poriscopo
cbservation showed provicus offshore ptrol vosscl
honding in cur direction. He passed along starboard
side without making contact.
0753 L
Lt. 0-28 S., Long. 166-52 4. seund picked up heavy
scrows on port bow. We had boon making bricf periscopo
cxposures while patrol vessel opened range and had not
previously sighted present target, 6000 ton Por K
stding in toward NURU, angle on the bow 5 starboard,
rango 3800 yards, che escort on his storbord quarter.
Battle stations submerged, changed course 30° to obtain
90 port track for stern tube shot and spooded up to
cross track. In very calm soc followed torget with
sound and when within 10 degrees of firing bearing raised
periscope and ot
0810 L
Firca 5 rango 800 yards followed at 12 seconds by 6,
lowered periscope, Thirty seconds after 5 heard and
folt hovy cxplosion in direction of target.
0811-30L Observed target listed. 20° to port and on fire in both
wells, his escort coming up cur til with 20 port anglo
on bow, fired 79 (cock tube ft, set on 10 and 0° gyro)
cat
0811-46L Fired 210 and lowerca porisenpo.
0812-50L First Copth charge very close, probably from offshore
0820 L
petrel who passed us at 0718. started doop and swinging
loft, roccived 10 or 12 charges in first five minutes.
Sound reported phon Final noises in direction of target,
at 320 foct, ship rigged for depth charge and silent
running. Depth chrgos continuing at irregular intervals.
Water in ferwerd gun access trunk, ante trunk flocdod,
forward maunition heist jarred :pon and then slommod
shut by the next one, starbeard stern tube gland looking
bĉly inte meter roon. Having great difficulty with trim.
pp.rently 3 vessels scrching for us, Itern tuly spoca-
ing up and stepping to liston, ne ceho renging. Had a
period of quict for chout an hour thon as
-3-
ENCLOSURE ()

— page 128 —
C-C-N-F-I-D-E-N-T-I--L
U.S.S. NARWEAL
(B) NARRATIVE (Cont)
0944 L
Six more depth charges, closing out our account with #38,
not close. Our troubles were not over, however. Formed
bucket brigade to shift water from motor room to engine
room bilges. Fought for trim all morning.
1030 L
Sound reported "all clear".
1129 L
Settled to nadir of 365 feet with a 12° up angle. HILL,
Windell Leslie, MoM1c., USN., volunteered to go in
behind rotting starboard shaft and tighten up on gland.
With this successfully accomplished we were able to
make headway against the tide.
1220 L
At 200 feet and sweating profusely, but over the hump.
Spent the afternoon mopping up oil, hunting down grounds
and cleaning up the ship. Announced to all hands that this
morning's depth charging constituted "crossing the line"
ceremony.
1605 L
At periscope depth. Nothing in sight.
1857 L
Surf cod, headed for KWAJALEIN Atoll.

12 September
0045 L
0555 L
Completed transmission M.A.L BAKER.
Stern lookout reported plane. Not sighted by Commanding
Officer nor OOD. Dived.
0631 L
Surfaced.
1900 L
Entered area TWENTY-ONE.
:
13 September
0730 L
0740 L
0746 L
Entered area NINETEEN.
Sighted LIB Island bearing 345°T, dist nce 15 miles.
Lat. 6-18 N., Long, 167-23 E, Executive Officer sighted
plane taking off in our direction from western tip of
LIB. Dived, approaching LIB Island. No planes were
sighted at periscope depth, decided to close LIB to
investigate possibility of radar installation.
1143 L
Photographed LIB Island at 3¼ miles, bearing 036°T. No
evidence of any radar installation.
1340 L
Master gyro cut of commission.
1835 L
Surfaced.
2140 L
Master gyro repaired. Had intended to take a brief look
at LIB, and if no activity or radar noted, surface and
proceed to Gross. With gyro out decided to remain
submerged all day for benefit of repair work in progress
on gyro. Sea is glassy.

14 September
0501 L
0715 L
0720 L
Dived, approaching GIL. Pass.
After having had periscope down for ten minutes, one
depth charge, not close. Changed course and started
deep in case it was meant for us.
One depth charge, not close.

-4-
ENCLOSURE ( )

— page 130 —
U.S.S. MRALL

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

(B) NARRATIVE (Cont).
1325 L Lat. 9-28.2 N., Long. 167-22.8 E. sighted 2 more ships
dond chood. Sound reported noise as of underwater
communication.
1328 L Sound reported ships ahead now echo ranging. Number 3
periscope failed to lower immediately on 1st three
observ tions. Throw out circuit breakers and moved very
slowly when it did operate. It now appeared that the
form tion speed was only 4 to 5 knots, probably a con-
contration of enemy vessels screening a crippled ship.
The situation was critical in that we were getting closer
to the bench, the range was opening just slowly enough
to be tentelizing. Target ship was determined to be a
YUBARI class light cruiser, screened by one SENDAI class
light cruiser and four or more destroyers. The SENDAI
was on target's port quarter, 11 other DDs on targets
starboard side and only visible as masts.
1337 L Range had opened to 8000 on YUBARI, SENDAI broke out
full flag hoist and turned away, sound reported high
speed screws astern and asked if we had fired stern tubes.
1338 L Increased to full speed, changed course to the right,
went deep and gave up the chase as sound reported two
torpedoes crossing astern. Lost depth control and went
to new depth for the MRALL of 390 feet, checked only
by putting bubble in safety.
1426 L Regained depth control, bucket brig de stemmed the motor
room tide. Staying at 300 feet to keep from losing
safety bubble and thus disclosing our location. We were
definitely caught off base on this one. Too close
inshore to have good freedom of movement, and unable to
gain position ahead of formation. During the approach
I made only one sweep completely around the horizon,
concentrating rather on the many ships up ahead. On that
one sweep, no ships were sighted astern. Since no depth
charges were dropped the theory that we were fired on
by an enemy submarine is offered.

16 September
0007 L Completed transmission MRALL CERTLIE, Moving out of
area to northeast, hoping to make one days run on surface
to make battery water, and to check #3 periscope. Un-
usual depth had moved chart desk against downhaul cables
of #2 and we were afraid of distortion in bottom bearing
of #3. See major defects.
0330 L Departed from NINTEN.
0821 L Lat. 11-35 N., Long. 168-44 E., sighted unidentified plane
astern, dived.

-6-
ENCLOSURE ()

— page 131 —
C-O-1-1-I-D---T-I-L
U.S.S. NARWHAL

(3) RATIVE (Cont)
0848 L Nothing in sight, surf.ccd.
1200 L Reversed course to return to area. Planning to proceed
to JLUIT, althouh we will not be able to reach it
during night's run. Number of airplanes over ROI ORTH
Pass, coupled with classy seas gives little likelihood
of remaining undetected to wait for possible sortic.
Re-entered for MILTON,

1600 L

17 September
0450 L Dived, patrolling KWAJALEIN - WOTJE line.
1550 L Lt. 09-10 N., Long, 168-52 E. sighted unidentified plane
on easterly course, altitude 1000 feet, dist nce 7 miles.
1015 L Surfaced, proceeding toward J.LUIT.

18 September
0450 L Dived, patrolling KWAJALEIN - J.LUIT line.
1025 L Surfaced, proceeding toward J.LUIT Island.

19 September
0455 L Dived, approaching southeast pass, J.LUIT.
0615 L Lat. 5-50 N., Lon. 169-50 E. sighted unidentified plane
on easterly course distant 5 miles.
0820 L Lat. 5-52 N., Long, 169-46 E. sighted masts of freighter
anchored inside lagoon.
1217 L Sighted what appeared to be masts, closed and found
radio towers on J.LUIT not indicated on chart. See
Navigational Aids.
1532 L Lat. 5-50 N., Long. 169-45 E. sighted [UNCLEAR: ...tered]
Aichi 97 flying boat range ½ mile, course east,
altitude 300 feet.
1720 L Lat. 5-50.5 N., Long. 169-45 E. sighted 500 ton patrol
boat holding for ship on course 045, range 6000 y rds,
speed 10 knots, changed course to avoid.
1740 L Observed patrol boat passing 1200 yards to star-
board.
1829 L Surfaced. During next two hours had reported radar
contacts on patrol boat above, avoided radar surf.ce while
proceeding towards Ga. Pass, KWAJALEIN. Radar unable
to range. See major defects.
2211 L Received CTF 17's Serial 54.

20 September
0335 L Lat. 6-52 N., Long. 169-03 E. sighted small vessel on
port beam on parallel course. Unable to pick up on
radar. Since we were endeavoring to reach specific

- 7 -
CLOSURE. (..)

— page 132 —
U.S.S. NAR HAL
C-O-N-F-I-D-E-N-T-I-A-L

(B) NARRATIVE (Cont)
track, did not close this contact, although he would
have been an excellent but dim gun target. Hope to run
on surface all day tomorrow to reach possible track,
No. 3 main engine out of commission with broken head bolt.
0935 L
1245 L
No. 3 back on line.
1330 L
Entered Area NINETEEN.
1337 L
Lat. 8-02 N., Long. 166-50 E. stern lookout reported
large plane. Not sighted by OOD.
1341 L
SD contact on plane 6 miles, closing.
1342 L
Dived.
1414 L
surfaced,
2130 L
On convoy track, changed course to reverse of convoy to
cover slower speeds.
2230 L
Reversed course to cover faster spoeds.

21 september
0515 L
Dived on convoy track.
1750 L
surfaccd.

22 Septomber
0502 L
Divcd, approaching Ch. rass.
1752 L
Surfaced,
1943 L
Radar contact, 18,000 yards, bogan approach.
1958 L
Broke off approach on LI3 Island.

23 September
0002 L
Completed transmission NRL DOG to ComSubPac.
1400 L Dopartea Arca TNTY-ONE.

24 September
1600 L
Crossed Equator.
2310 L
Transmitted NRL 241210 to CTF 72. Froccoding south
on surface over prescribed route, conducting daily dives
and drills.

27 September
0445 L
At rendezvous with U... SC..
0536 L
Joined HINZO KIWI, escort. Sichted various friendly
planes curing day while passing through straits.
1730 L
Escort dopertca, SC stood out to westward..
28-30 September Uneventful, conducting daily-dives and drills.
1 October
2129 K
While investigating radar cont ct 60 miles northeast of
rendezvous, unidentified plane passed overhond at low
altitudo. Flashod incorcot challenge
2255 K
TransmittedL 011300 to СТЕ 72.
2 October
0347 K
Joince escort, LL 818, proceeding to Brisbanc.
0706 K
Anchored in Loreton Bay, awiting pilot,
1149 K
Underway, following U.D.. COD to DitISBAG.
1549 K
Moored starboard side to U... FULTON, in و
AUSTRALIA.

- 8 -
ENCLOSURE ()

— page 133 —
C-C-N-F-I-D-IN-T-I-L
U.S.S. NREL

(C)TR

Throughout the entire period in the RSHLL Island aron,
calm seas, conditions one and two, and moderate winds, force no
to throw, worc citrichocd. line and sons varied from NE to SE,
cxcept for short period commencing 22 September, when they woro
from the west. The scs were flat with no whitecaps, very day
was cloudy in verring mounts. The clouds usually broke up for
c. fow hours at sunset and stotines for few hours tabout noon,
but the sky was never completely cloer. The temperature was
stondy at t about 82CF., as was the barometer which vornged about
29.70.

(D) TID LINE ORTION

The general sct of the current in the ERSHLL Isl nd orca
was to the castward, varying from zore to one khat. westerly
sct of about 2 knots was i und eff NURU. The effect of tides
close to the tells sntoticcable. The tidal currents
capparently or not flow here than 4 or 5'niles fron the tells.

() AVIG TION LIDS

On chart No. 5429, plan of JLUIT toll, two soprate
scts of tecrs ro loc toc t: It. 5-49.6 N.,. Lang. 169-37.4
and Lot. 6-48.2., Long. 169-37.1

(F) SIF CONT.CTS
:
:
:
:
Tiro | Lat. | Long |Initial|:Coursc |st. |now |
No.: D.to | | |: Type |Rango |topoCC |:tacted|: Ronrks
: | : | : | | | |:Can- |
: | : | : | | | |: |
1 |:1808 W |:20-46 N |: 55 |:500 yds:| |: SD |: Unverifiod.
|:31 ug.|:158-31 W:| | | |: |: |
2 |:04.3 L |:0-32. S |:cr|:23,000 |: 1500 |: R |: Soon noored at
|:11 Scpt|:166-54 E:|: K |: ycs. |:10 knots:|: & P |:jotty on NURU
| | | | | | |: |:later in day.
3 |:0602 L |:0-31 S |:FG(2)|:8,000 |: 2900 |: P |: .ttck 1.
|:11 Scpt|:166-53 E:|: yds. |:8 knots |: |: |
4 |:0753 L |:0-28.5 |:cr|:3,800 |: 1500 |:S und|:
|:11 bcpt|:166-52 E:|: K |: ycs. |:10 knots|: & P |:
5 |:0753 L |:0-28.5 |: PG |:4,300 |: 1500 |: P |: Escorting Contact
|:11 Scpt|:166-52 E:|: yds. |:10 knots:|: |: 74, ttck 2.
6 |:1320 L |:8-44 N |:Un- |: 18,000 |:nchered|: P |: Inside KJ LIN
|:14 Scpt|:167-43 E:|:known|: yds. |: |: |: telr-
7 |:0845 1 |:9-25 N |: 2G |:6,000 |: 3000 |: P |:
|:15 scpt|:167-20 E:|: yes. |:8 knots |: |: |

-9-
ENCLOSURE (2)

— page 134 —
C-C-M-F-I-D--N-T-I-L
U.S.S. NARWHAL

(F) SHIL CONTACTS (Cont)
:
:
:
:
:Timo
:Lat.
:
:Est.
: How :
:Initial:Course :Gon- :
No.: Datc :Long. :Type :Range : Speed :tacted: Remarks
:
:
:
:
:
:
:
:
8 :1212 L:9-25 N : FG :6,000 : 1200 : P :
:15 Scpt:167-20 E : : yds. :8 knots : : :
9 :1244 L:9-28.8 N : (2) :14,000 : 1100 : F :(1) YUBARI
:15 Scpt:167-22.6 E: CL : yds. :5 knots : :(2) SLIDI
10.:1325 L:9-28.2 N : (4) :16,000 : 1100 : P :Screening
:15 Scpt:167-22.8 E: DD : yds. :5 knots : :Contacts #9.
11 :0820 L : 5-52 N : AK :18,000 : --- : P :t anchor in
:19 Scpt:169-46 E : : yds. : : :Lagoon.
12 :1720 L : 5-50.5 N : FG :8,000 : 0450 : P :
:19 Scpt:169-45 E : : yds. :10 knots: : :

P - Periscope R - Radar SD - Surface, day SN - Surface, night

(G) AIRCRAFT CONTACTS
:
:
:
:
:Timo :Lat. : :Est. : How :
No.: Dato :Long. :Type :Range :Initial: Course :Con- :
: : : : : :Alt :tacted: Remarks
:
:
:
:
:
:
:
:
1 :0650 L :0-31 S : (3) :5 mi. : 090 : P :Flying in tight
:11 Sept:166-53 E: KITE : :800 ft. : :V formation.
2 :0746 L :8-18 N :Unident:15 mi. : 180 : SD :Float plane.
:13 sept:167-23 E: : :Taking : :
: : : : : off : :
3 :0939 L : 9-30.1 N :SALLY :3 mi. : 090 : P :
:15 Scpt:167-20 E : : :1500 ft:1500 ft.: : :
4 :1040 L : 9-29.2 N :SALLY :8 mi. : 090 : P :
:15 Scpt:167-20.8E: : :1500 ft.: : :
5 :1102 L : 9-29.5 N :S. LLY :8 mi. : 270 : P :
:15 Sept:167-21.8E: : :2000 ft.: : :
6 :1102 L : 9-29.5 N :Unident:10 mi. : 270 : P :
:15 Scpt:167-21.8E: : :1500 ft.: : :
7 :1139 L : 9-29.3 N :CHERRY :7 mi. : 000 : P :
:15 Scpt:167-22.4E: : :2000 ft.: : :
8 :1147 L : 9-29.1 N :SALLY :6 mi. : 180 : P :
:15 Sept:167-23.8E: : :1500 ft.: : :
9 :1225 L : 9-29.0 N :OSC R :6 mi. : 050 : P :
:15 sept:167-24 E : : :1000 ft.: : :
10 :1244 L : 9-28.8 N : (2) :5 mi. : 140. : P :
:15 Sept:167-22.6E:S. LLY : :700 ft.: : :
11 :0821 L : 11-35 N :Unident:5 mi. : 045 : SD :Not verified.
:16 Scpt:168-44 E : : : 1000 ft.: : :
12 :0615 L : 5-50 N :Unident: 5 mi. : 090 : P :
:19 Scpt:169-50 E : : :1000 ft.: : :

- 10 - ENCLOSURE (..)

— page 135 —
C-O-N-F-I-D-E-N-T-I--L
U.S.S. NARWHAL

(G) AIRCRAFT CONTACTS (Cont)
:
:Time
No.: Date
:
Lat.
Long.
:
:
Type
:
:Initial:Course
:Range :Alt.
:
:
:Est.
:
:How
:Con-
:tacted: Remarks
:
:
:
13 :1532 L :5-50 N :L.VIS :½ mile : 090 : P
:19 Sept:169-45 E : : :300 ft. :
14 :1337 L:8-02 N :Unknown:6-7 mi.: 090 : SD :
:20 Sept:166-50 E : : :1000 ft.: :
15 :1341 L:8-02 N :Unknown:6 mi. :Unknown : R :Probably con-
:20 Sept:166-50 E : : : :tact #14.

P - Periscope R - Radar SD - Surface, day SI - Surface, night.

(H) ATTACK DATA

U.S.S. NARWHAL TORPEDO ATTACK NO. 1 PATROL NO. 6
Time 0810 L Date 11 september 1943 Lat. 0-28 S., Long. 166-52 E.

TARGET DATA - DAMAGE INFLICTED
Description Three island freighter or transport of about
6000 tons escorted by one 600 ton gunboat.
Ship(s) sunk Unknown.
Ship(s) damaged One, F or K, 6000, name unknown.
or probably sunk
Damage Determined by Heard and felt torpedo hit at proper interval,
then observed target listed about twenty
degrees with heavy fires blazing in both
wells.
Target Draft 16', Course 150, speed 10 knots, range 800 yards (at
firing.

OWN SHIP DATA
Speed 2.5, course 060, depth 68', angle 0 (at firing).

- 11 - ENCLOSURE (1)

— page 136 —
U.S.S. NARWHAL

C-O-N-F-I-D-E-N-T-I-A-L
(H) ATTACK DATA (Cont)

Type attack FIRE CONTROL AND TORPEDO DATA.
Initial contact made by sound, on first
observation target at 3800 yards, 50 starboard
angle on bow, escort on his starboard
quarter, crossed ahead, fired both submerged
tubes aft on 100 port, 170 gyro, using 20°
divergent spread set into TDC, keeping
periscope on target matching po rings be-
fore firing. Interval 10 seconds.

U.S.S. NARWHAL TORPEDO ATTACK NO. 2 PATROL NO. 6

Time 0811 L Date 11 September 1943 Lat. 0-28 S., Long. 166-52 E.

Description TARGET DATA - DAMAGE INFLICTED
Escorting FG of 800 tons on starboard quarter
of ship attacked in attack #1. Typical NIP
with high bow and stern.

Ship(s) sunk None.

Ship(s) damaged or
probably sunk None.

Damage determined by No damage.

Target draft 8-10 feet, Course 235, Speed 15 knots, Range 1000 (at
firing)

OWN SHIP DATA.

Speed 2.5, course 060, depth 68', angle 0 (at firing).

Type attack FIRE CONTROL AND TORPEDO DATA.
After attack #1 we had only deck tubes re-
maining aft. Those reset on 10° and 0°
gyro and cannot be altered. While observing
effect of hit on attack #1, escort presented
5° port angle, coming in at increased speed,
on relative bearing of 180-185. Fired both
deck tubes aft ten seconds apart hoping to
make him veer off if torpedoes ran under him.
I realized the small chance of a hit, but I'
had also brought a full load of torpedoes home
from my last two patrols.

- 12 ENCLOSURE (..)

— page 137 —
C-O-N-F-I-D-E-N-T-I-A-L
U.S.S. NARWHAL
(H) ATTACK DATA (Cont)

| | ATTACK #1 | | ATTACK #2 |
|:|:|:|:|:|
| Tube fired | #5 | #6 | #9 | #10 |
| Track Angle | 100 port | 105 port | 2 port | 5 port |
| Gyro angle | 170 | 165 | 180 | 180 |
| Depth set | 10' | 10' | 10' | 10' |
| Power | High | High | High | High |
| Hit or Miss | Hit | Miss | Miss | Miss |
| Erratic | No | Unknown | Unknown | Unknown |
| Mark Torpedo | 14-3 | 14-3- | 14-3 | 14-1 |
| Serial No. | 24334 | 39389 | 22970 | 19491 |
| Mark Exploder | Mk. 6-1. | Mk. 6-1. | Mk. 6-1A | Mk. 6-1A |
| Serial No. | 6950 | 6032 | 5710 | 11862 |
| Actuation Set | Contact | Contact | Contact | Contact |
| Actuation Actual | -- | -- | -- | -- |
| Mark Warhead | 16 | 16 | 16 | 16 |
| Serial No. | 3759 | 1868 | 6432 | 6371 |
| Explosive | TEX | TPX | TNT | TNT |
| Firing Interval | -- | 12 sec. | -- | 10 sec. |
| Type Spread | 2° divergent | -- | Longitudinal | -- |
| Sea Condition | Calm | Calm | Calm | Calm |
| Overhaul Activity | SubBase, F.H., T.H. | -- | SubBase, F.H., T.H. | -- |
Remarks. Tubes #9 and #10 are deck tubes aft with fixed
settings of 0° gyro and 10 feet.

(I) LINES

None.

(J) ANTI SUBMARINE MEASURES AND EVASION TACTICS

Following attacks on 11 September we were depth charged
by three vessels. Two of those were probably offshore patrol
vessels converted yacht types of 300-500 tons previously sighted
and the third vessel the target's escort - a gunboat type of
about 800 tons. No echo ranging was used, 4/5 vessels alternately
speeding up and stopping to listen. High speed was used on e-
vasive tactics throughout initial barrage to open distance to
4/5 vessels and permit faster course changes. We endeavored to
swing away from A/S vessels constantly, to prevent their getting
set lead angle. However, on one occasion we turned toward one
vessel while second was on the same quarter. This was intended
not so much to confuse searching craft as to continue to open
range to NARU. We were sufficiently close to the beach to limit
our choice of direction to the north and westward.

- 13 -
ENCLOSURE (--)

— page 138 —
U.S.S. ILRHL
C-C--F-I-D--K-T-I--L

(J) ITI SUS IN
OURS DEVSION TACTICS (Cont)

During appro ch on 15 September twe torpedoes woro
fired at KRAL, possibly by an onomy submarine. No surf.co
vossel had been soon in that scctor en low power swoop shortly
before. The fact that no depth charges woro dropped lends
support to this theory. lncs, largely bomber types, woro
sighted on almost every periscopo exposure during this morning.
ist of them were caly picked up in high power sweeps.

(A)JOR DEFECTS

(1) On 2 september, prior to making : Battle Surf cc, 11
hydraulic clutches worc filice. On starting the engines, 4 min
oncino fired almost immediately and began driving #2 ند 2 ده
Cić not fire but when 4.. fired both crhaust velves worc
opened. 21. then flooded nd fired a fow tincs causing 16 pisto
to scizc. when 21. fired, the relief velve in 13 cylinder
lifted. The clutch was dumped and the cngino sclocter set to
..only". 21. didn't stop immočitoly and the governer
had to be hard-worecd. The cause evidently lay in the governor
sticking causing the engine not to start when first kicked over.
The scricusnoss could have been lossened slightly by norc
cxpcrioncod personnel.

(2) The gyro casualty of 13 September was corrected by
tomperry rop irs. Completo diagnosis of trouble cannot be made
until services of tender are availablc.

(3) The casualty to number 3 periscopo of 15 september
was ronocice by proper greasing. Gein inoxporioncod. personnel
ro at fault

(4)
method of pumping motor room bilges into the
settling tank is under consideration. The plan will be submitted
t: tondor personnel en rrive1.

(L) RDIC

Radić reception was gred and all scrials rcccived worc
complctc.
|: ConSubfa.c |: CTF 72 |:
|:|:|:
|Last scrial reccivcd |:72-D of ecpt. |: Ø20217 of Oct. |:
|:|:|:|:
| |ARL'S DOG | |
|Last scril sont |of September. |: Ø1130% of Oct. |:
|:|:|:|:

- 14 -
LINCLOSURE (4)

— page 139 —
C-O-M-F-I-D-E-I-T-I--L
U.S.S. MARSHAL
(M) R.A.D.A.R.
Both radars operated satisfactorily, with the exception
that the range unit of the SJ was out of commission during the
latter part of the patrol. .. broken connection at one crystal in
the range tank was found to be the cause of this breakdown. An
attempt to solder the loose wire to the crystal proved unsuccess-
ful as it resulted in a multiple number of steps which could not
be controlled by the AVC circuit.

(N) SOUND GEAR AND SOUND CONDITIONS
Both sound conditions and operator's performance were
excellent.

(O) DENSITY LAYERS
None.

(P) HEALTH, FOOD, AND HABITABILITY
Health of crew has been excellent. No men were admitted
to the sick list this patrol.

Below is a resume of complaints registered at sick calls
for this period:

Tonsilitis | 3
Constipation | 8
Headaches | 30
Abrasions | 3
Contusions | 3
Cellulitis | 2
Observation (stomach) | 1
Hives | 1
Ingrown Toenails | 2
Intestinal Neuritis | 1
Fracture of Finger
(simple) | 1 Fractured while
working on an engine during overhaul work.
Finger splinted and man remained on watch.

Vitamin's and Sodium Chloride tablets were made avail-
able five days after the patrol had begun. There were no
complaints of the heat or loss of energy.

No noticeable effects on the crew were noted physically
or mentally after depth charge. The usual complaints of in-
testinal neuritis were not present this patrol.

- 15 -
ENCLOSURE(..)

— page 140 —
U.S.S. NARWHAL

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

(P) HEALTH, FOOD AND HABITABILITY (Cont)
During all day dives, cold meals were served at noon and
evening meal served after surfacing. All food was well prepared.

(Q) PERSONNEL
While realizing the need of the submarine service in
general for trained qualified men to fill requirements of new
construction, the Commanding Officer feels that the training of
the replacement personnel could be greatly improved. Twenty-five
qualified men were transferred to relief crew on completion of
the fifth patrol and NARWHAL began this patrol with 52 unqualified
men. Most of the new men were of necessity assigned to wheel and
lookout watches. No more than two had the vaguest notion of how
to read a compass card nor how to report a sighted object. Both
of these rudimentary techniques could be covered by proper train-
ing ashore before the men are sent to sea on war patrols. An
intensive training program was begun at once, but the strain of
constantly watching ever so many new men made itself felt both
on officers and experienced hands.

The Commanding Officer was highly gratified by the re-
actions of all hands to depth charging received on 11 September.
This was the first experience for more than half the crew. The
action of HILL, Windell Leslie, MM2c., USNR., mentioned in the
narrative is worthy of special commendation.

(R) MILES STEAMED - FULL USED

Base to Area | 1993 miles | 26430 gallons
In Area | 3101 miles | 49498 gallons
Area to Base | 2317 miles | 34110 gallons.

(S) DURATION
Days enroute to Area | 7
Days in Area | 14
Days enroute to Base | 9
Days submerged | 11

Note: Run to MURU and return is included in days in Area. One
day's run north for making battery water is not included.

(T) FACTORS OF ENDURANCE REMAINING
Torpedos | Fuel | Provisions | Personnel Factor
26 | 19130 gallons | 59 days | 26 days
Limiting factor this patrol was fuel.

(U) REMARKS
None.

- 16 - ENCLOSURE (1)

— page 141 —
FF12-15(72)/A16-3/Pk
Serial 0342
CONFIDENTIAL

From:
To
Via:
:
Subject:
Reference:

1.
TASK FORCE SEVENTY-TWO,
Care of Fleet Post Office,
San Francisco, California,
:
19 November 1943.
The Commander Task Force SEVENTY-TWO.
The Commander in Chief, UNITED STATES FIEET.
The Commander, THIRD FLEET.
U.S.S. NARWHAL (SS167) - Revision of damage inflict-
ed.
(a) CTF 72 Confidential Ltr. FF12-15(72)/A16-3/Pk
Serial 0310 of 10 October 1943.
The NARWHAL was credited in reference letter with
having inflicted the following damage on the enemy:

DAMAGED
One loaded freighter
2.

4,500 tons.
Based on new information the above assessment is
revised and it is now considered that the ship attacked subse-
quently sunk. NARWHAL is credited with having inflicted the
following damage on the enemy on her Sixth War Patrol:

SUNK
One loaded freighter
3.

4,500 tons.
The Commander Task Force SEVENTY-TWO considers this
a successful patrol for purposes of award of Submarine Combat
Insignia.

4.
By copy of this letter Commander Submarines Pacific
is requested to revise his damage records accordingly as NARWHAL
was under his operational control during this patrol.

DISTRIBUTION: [HANDWRITTEN: RECEIVED S-C FILES]
JAMES FIFE.
Cominch (Advance - [HANDWRITTEN: R2)m] 2055 CSS 3, 4, 6, 8, 16, 18
VCNO [HANDWRITTEN: 29 NOV 1943] Oinc, S/M Sch., N.L. Conn. (2)
VOPNAV (Op-23c) [HANDWRITTEN: NOTE TO:- 01-02-02] CTF 72 War Patrol Summary
Com 1st Flt [HANDWRITTEN: A16-3(23)/11167] Flt Radio Unit, MELBOURNE
Com 2nd Flt [HANDWRITTEN: Op File No. (SG)] All SS TF-72 (May be taken to sea,
Com 7th Flt [HANDWRITTEN: buto BURN prior passing 5° South.]
Comsubs 1st Flt [HANDWRITTEN: File No..... 101-16]
Comsubs 2nd Flt [HANDWRITTEN: File No..... 1 of 1]
Comsubs 7th Flt [HANDWRITTEN: Copy No...... 02523
[HANDWRITTEN: See Doc 97849]

— page 144 —
DECLASSIFIED
U.S.S. NARWHAL
(B) NARRATIVE [UNCLEAR: Cont'd]: U.S.S. NARWHAL
1842 L
2000 L
29 October
0543 L
1500 L
30 October
0547 L
1448 L
1831 L
31 October
1 November
0602 L
0633 L
1246 L
1836 L
2 November
0859 L
0921 L
1346 L
1354 L
1420 L
3 November
4 November
0821 L
Surfaced, discharge completed, performance capacity
100%, actual capacity 99.8%.
Reversed course, heading for rendezvous.
Sighted escort, HMNZS TUI.
Escort departed. Sighted various friendly planes during
day.
Dived.
Lat. 6-10 S; Long. 158-08 E; sighted flying fortress
distance 6 miles, altitude 4000 feet, on westerly course.
Surfaced.
Uneventful, all day dive.
Dived.
Lat. 1-59 S; Long. 154-50 E; sighted large unidentified
plane, distance 6 miles, altitude 2000 feet, on south-
easterly course.
Lat. 1-44 S; Long. 154-42 E; sighted KAWANISHI 97 flying
boat "MAVIS" on southeasterly course, altitude 500 feet,
distance 8 miles.
Surfaced.
Lat. 1-00 N; Long. 152-27 E; sighted unidentified medium
bomber on westerly course, distance 8 miles, altitude
1000 feet, dived.
Surfaced.
Radar contact on SD, 18 miles, when range closed to 12
miles, dived.
Lat. 1-00 N; Long. 151-31 E; sighted medium bomber type
"JULIA" on westerly course, distance 2 miles, altitude
1000 feet.
Surfaced.
Uneventful, daily dives, drills, passing many oil drums
and other flotsam.
Sighted lashed box floating nearly awash, covered with
Japanese characters. Picked it up and opened on deck.
Contained sealed tin packed with a disgusting looking
green vegetable resembling spinach; returned it to a pair
of interested sharks.
- 2 -

— page 152 —
DECLASSIFIED
U.S.S. NARWHAL
(J) ANTI-SUBMARINE MEASURES AND EVASION TACTICS (Cont.):
minutes after firing, target opened fire in our general direction
with a forward mounted gun. No splashes were visible. Closest
depth charge pattern of five were dropped seven minutes after
firing, probably not closer than 800 yards. The last charges were
apparently rolled from stern racks as no Y-gun flash was visible
while charges were felt.

We surfaced one hour after the last charge was felt and
eight minutes after sound had lost all screw noises. Escorts made
contact at over 10,000 yards, were closing at 15 knots, and very
steady at 17. Star shell illumination was short, DE's probably
using maximum range on 3" gun. The SJ radar picked up one falling
star. Star shells close aboard retain much of their initial for-
ward velocity instead of falling directly down. They appear like
a plane with a brilliant landing light coming in at a steep glide.

(K) MAJOR DEFECTS:

Liquidometers - All liquidometers need to be replaced
with the new Navy Yard type similar to the one installed in the
negative tank. The present DeGeirs Liquidometers have been used
since the vessel went into commission and are continually out of
commission making compensation very difficult. In operations
like this patrol, reliable liquidometers are an absolute essential
for safety since compensation after loading and unloading cargo
presents large problems. Separate correspondence will be initiated.

The squeal in the starboard shaft reported on sound tests
at Pearl on 23 August and Brisbane on 23 October is growing steadily
worse. It should be corrected at the earliest practicable
opportunity.

(L) RADIO:
Radio reception was good except during the early after-
noon. All serials received were complete.

Last message sent: 191330 of November.
Last message received: CTF 71's serial No. 10.

- 10 -

— page 156 —
DECLASSIFIED N (for U.S.S. NARWHAL.8.0
(T) FACTORS OF ENDURANCE REMAINING:
| Torpedoes | Fuel | Provisions | Personnel Factor |
|---|---|---|---|
| 6 | 20,000 gal. | 50 days | 30 days |

Limiting factor of this patrol: Provision of operation order.
(U) REMARKS:
The very real need for any kind of stores in guerrilla
occupied areas led us to transfer considerably more stores than
were actually consigned as cargo. Additional arms and ammunition
as well as foodstuffs were transferred to Col. FERTIG.

On 13 November, Lieut-Comdr. PARSONS brought aboard
copies of the Manila Tribune, just 3 days old. From information
received ashore, apparently reliable, the submarine force will be
interested to know that the old SEALION is in Dewey Drydock. Her
stern is blown off and the interior is being dismantled, apparently
for study.

1
50
-14-

— page 157 —
7324-71/A16-3
UNITED STATES NAVY
12/gms
Serial: 00439
14 December, 1943.
FIRST INDORSEMENT to:
U.S.S. MARSHAL Report of 7th
War Patrol of 22 Nov., 1943.
DECLASSIFIED

From:
To:
Via:
Subject:

Commander Task Force SEVENTY-ONE.
Commander in Chief, UNITED STATES FLEET.
Commander SEVENTH FLEET.

U.S.S. MARSHAL Report of Seventh War Patrol -
Comment on.

1.
In view of the highly secret nature of the inform-
ation contained in this report the classification is hereby changed
to "SECRET" and the distribution strictly limited.

2.
The Seventh War Patrol of the MARSHAL, covering a
period of thirty days, was conducted primarily performing special
missions in the PHILIPPINE ISLANDS area.

3.
Contacts were made on two convoys. One of these
was developed into a night periscope attack in which four torpedoes
were fired from range 3100 yards at a large tanker escorted by
three Destroyer Escort type vessels. The attack was made in a flat
calm sea in brilliant moonlight. No hits were obtained.

4.
The expeditious manner in which hazardous missions
are carried out under the very nose of enemy patrols displayed
courage, good judgment and aggressiveness. The excellent handling
of, and care afforded, the mixed group of evacuees by the MARSHAL
was an assignment well performed.

5.
This patrol is considered "successful" for purpose
of award of the Submarine Combat Insignia.

6.
The Force Commander congratulates the Commanding
Officer, Officers, and crew on the successful completion of special
assignments in hazardous waters.

No direct damage was inflicted on the enemy.

[SIGNATURE: B. L. Carr]
B. L. CARR,
Commander, U.S.N.,
Flag Secretary
DISTRIBUTION:
Vice CNO (1)
Com7th Flt (1)
Consubspac (1)
File (1)
R. W. CHRISTIE.

1 53
[HANDWRITTEN: 4J]

— page 158 —
UNITED STATES FLEET
COMMANDER SEVENTH FLEET
Reg. No.M.0.10.7.8.9.
R.S. Ne...
153
A16-3/(F3/wgj)
Serial 001604
[HANDWRITTEN: copy]
DECLASSIFIED

SECOND ENDORSEMENT
on USS NARWHAL Report
of 7th War Patrol of
22 November 1943.
DEC 26 1943
From:
To :
Subject:
The Commander Seventh Fleet.
The Commander in Chief, United States Fleet.
U.S.S. NARWHAL Report of Seventh War
Patrol - Comment on.
1.
2.
Forwarded.
The NARWHAL is to be especially commended
for successfully carrying out secret missions in the
Philippine Islands area. The way in which these hazardous
undertakings were performed reflects the sound judgement
of the Commanding Officer and the high morale of all
officers and men.

C. E. VAN HOOK
Deputy
[STAMP: COMMANDER IN-CHIEF
U.S. PACIFIC FLEET
OFFICE]
1944 JAN 15 17
15
0

— page 159 —
REFER TO NO.
SS167/
U. S. S. NARWHAL (SS 167)
1ST COPY

1 1291
DECLASSIFIED ART. 0445, COMAWANOT 5510 10
BY [HANDWRITTEN: 11c 17-09-15]
DECLASSIFIED
Care of Fleet Post Office,
San Francisco, California,
18 December 1943.

From: The Commanding Officer.
To : The Commander in Chief, United States Fleet.
Via: (1) The Commander Task Group SEVENTY-ONE POINT ONE.

Subject: U.S.S. NARWHAL, Report of War Patrol Number EIGHT.

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

1. Enclosure (A), covering the EIGHTH war patrol of
this vessel conducted in PHILLIPINE ISLANDS during the period
25 November, 1943 to 18 December, 1943, is forwarded herewith.

[SIGNATURE: F. D. LATTA.]

— page 161 —
REFER TO NO.
SS167/
U.S. S. NARWHAL (SS 167)
DECLASSIFIED
(B) NARRATIVE (Cont.):
0956 H Surfaced.
30 November
Uneventful, daily dives and drills.
1 December
0542 Η Dived off entrance to SURIGAO STRAIT。
1737 H Surfaced, entered strait.
2207 H Entered MINDANAO SEA.
2 December
0444 Η Dived, entering BUTUAN BAY.
1706 H Surfaced, 1000 yards off CABADARAN, MINDANAO.
1723 H Alongside 150 ton barge, lying to. Col. W.W. FERTIG,
A.U.S., and Lieut-Comdr. C. PARSONS, D-V(S), USNR.,
came aboard.
1730 H Began unloading cargo.
2140 Η Completed unloading cargo. Delivered 300 gallons lube
oil and small amount of hand tools.
2150 Η Received information concerning next phase of mission,
filed three messages with portable radio station on
barge. Two messages outlining steps for picking up
evacuees, one to CTF71.
2205 Η With Lieut-Comdr. PARSONS and 7 evacuees, underway,
proceeding out of BUTUAN BAY. Evacuees consisted of
2 soldiers, 3 civilian men, one woman and an 8 year
old girl.
2255 Η Dived for trim. Very light, due to high fuel capacity,
low lube oil and absence of cargo. All variable tanks
nearly full.
2320 Η Surfaced.
3 December
0514 Η Dived, southeast of SIQUIJOR ISLAND.
1802 Η Surfaced, proceeding into SULU SEA.
2005 Η Received information from CTF71 that evacuation was
impossible. Decided to continue with plans for
reconnaisance of MALOCANAN anyway, since to proceed to
site for second pick-up would put us one day ahead of
schedule. In the event contact could be made at MALOCANAN,
time would have been lost.
- 2 -

— page 162 —
REFER TO NO.
SS167/
DECLASSIFIED
U. S. S. NARWHAL (SS 167)
4 December
0457 H Dived, reconnoitering MALOCANAN, NEGROS. The barrio
of MALACONAN appeared quite peaceful. During after-
noon closed to one mile off beach, watched natives
along shore, children and dogs playing on beach. No
security signal sighted.
1705 H Surfaced, circled in toward beach, closing to 1000
yards. Entire population, excepting the dogs, dis-
appeared. Hoisted colors and cruised entire length of
barrio. Inhabitants returned to beach and watched ship
with interest,
1713 H No signal, headed to seaward. After dark, headed back
in to MINDANAO SEA. Wind and sea picking up, encountered
heavy rain and easterly winds after 2300. Avoided
numerous small radar contacts.

5 December
0148 Η Sighted bonfires (security signal) at ALUBIJID, MAJACALAR
BAY, due to excellent work of the navigator.
0200 Η Shifted to motors, closing ALUBIJID, rain had stopped,
heavy overcast, flashed own security signal in direction
of bonfires. Numerous small radar contacts off shore.
0255 H Radar contact 800 yards in direction of beach. Tracked
in to 450 yards.
0305 H Second Lieutenant NOBLE, P.A., came alongside in dugout
canoe, to verify the fact that we were there to pick up
evacuees, He had made no provisions to signal the beach
and his canoe had to be returned to beach to notify
evacuees that ship was friendly.
0400 H Radar contact, 900 yards, in direction of beach.
0410 Η One boatload of evacuees came aboard consisting of
DEVRIES family. Boat was returned with all the
vituperation I could muster to urge further haste.
0444 Η Second and last load of evacuees came aboard. They were
escorted by four or five barrotas filled with Filipino
sightseers, more than enough boats to have brought the
entire party in the first place. Received total of 2
men, 3 women, 4 children.
0446 Η Underway, standing out of MAJACALAR BAY at 17 knots.
At sunrise, skies were overcast, shore line still fairly
distinct so decided not to dive until further away.
0620 Η Lat. 9-02 N; Long. 124-29 E, sighted smoke on horizon
to north, closed to investigate.

- 3 -

— page 163 —
REFER TO ΝΟ.
SS167/
U. S. S. NARWHAL (SS 167)
DECLASSIFIED
7
(D) NARRATIVE (Cont.):
0651 Η Lat. 9-09 N; Long. 124-29 E, attacked unescorted AP,
"OMI MARU" class, 3390 tons, with gunfire.
0703 H Dived, AP heavily afire from stem to stern and settling.
Closed target submerged to observe sinking. Target
burned furiously with heavy underwater noises.
0758 H Target sank, no survivors or wreckage visible.
1757 H Surfaced, proceeding to SURIGAO STRAIT.

6 December
0025 H Completed transit of SURIGAO STRAIT, enroute PORT
DARWIN, AUSTRALIA.

7-8 December
Uneventful, daily dives, drills.

9 December
1003 Η Lat. 6-23 S; Long. 127-25.5 E, SD radar contact, 13
miles, dived.
1021 Η Surfaced.
1654 Η Lat. 7-27 S; Long. 128-29 E, SD radar contact, dived.
1713 H4 Surfaced.
2105 H Sent NARWHAL ONE to CTF71.

10 December
0550 H No. 2 main engine out of commission with blown head
gasket. Running into very heavy seas and head winds.
1335 H No. 2 main engine back on line. Proceeding on soundings,
no sights. BATHURST ISLAND too low to be picked up
on SJ.
2030 H Joined escort, ML429 at rendezvous.
2315 H Passed through net gate, PORT DARWIN.

11 December
0036 H Discharged 16 evacuees and Lieut-Comdr. PARSONS to
Army launch.
0100 Η Anchored FORT DARWIN.
0243 Η Underway.
0337 Η Passed through net gate, proceeding to FREMANTLE.
Sighted various friendly planes during day.

- 4 -

— page 164 —
REFER TO ΝΟ.
SS167/
DECLASSIFIED
U. S. S. NARWHAL (SS 167)
(B) NARRATIVE (Cont.):
12 December
Uneventful, encountering heavy seas and head winds.
Making good 11.5 knots with turns for 15.

13 December
1028 Η No. 3 main engine out of commission with broken head
bolt.
1645 Η No. 3 main engine in commission.

14, 15 December
Uneventful.

16 December
1034 Η Lat. 25-33 S; Long. 112-10 E, radar contact 8 miles,
dived.
1050 Η Surfaced.

17 December
0716 H Sighted vessel on horizon, closed to investigate.
0722 H Exchanged calls with U.S.S. KINGFISH.

18 December
0546 Η Joined escort, U.S.S. CHANTICLEER at rendezvous.
0832 H Moored to U.S.S. PELIAS in FREMANTLE, AUSTRALIA.

- 5
-

— page 165 —
REFER TO ΝΟ.
00127/
DECLASSIFIED
(C) WEATHER:
U. S. S. NARWHAL (SS 167)
During the period from 25 November to 5 December, the
weather was characterized by flat, glassy seas, and winds of
force 0 to 3 from variable directions, but predominantly easter-
ly. Visibility was excellent, and skies were usually partially
cloudy. On 5 December, in MINDANAO SEA, the seas increased to
condition 6 and the wind to force 5, both from the west.
vicinity of SURIGAO STRAIT, wind and seas were from the east.
During the remainder of the patrol, seas of condition 4 to 6
and winds of force 4 to 6 were typical, both from southwest.
Cloudy skies were frequent, but navigational sights were usually
obtainable.
(D) TIDAL INFORMATION:
In

None.
(E) NAVIGATIONAL AIDS:
None.
:Time
(F) SHIP CONTACTS:
: Lat.
:
: Initial
: Est.Course: How con-:
No.: Date
Long.
:Type(s): Range
:
Spe ed
:tacted
: Remarks
:
:
:
:
:
:
1 :0620 Η:
9-02 N:
AP
:12,000 yds.:
090
: S(D)
:See Gun
:5 Dec. :124-29 E:
:
:
12
:
:Attack
:
:
:
:
#1
:
NOTE: None of the thirty or more radar contacts on small boats, nor
actua sighting of ten to fifteen sailboats are reported.
(G) AIRCRAFT CONTACTS:
;Time
: Lat.
:
: Initial: Course
How con-:
No.: Date
: Long.
:Type(s): Range
Altitude:tacted
: Remarks
:
:
:
:
:
:
:
1 :1333 I : 11-32 S:
--
: 34 mi.:
R :
:
--
:25 Nov. 129-50 E:
:
:
:
2:1353 I: 11-30 S:3 Liberm
8 mi.: Various :
P(D)
: Friendly
:25 Nov.:129-50 E:ators
:
: 1000'
:
:
3:1240 I:
7-43 S:Unident:
4 mi.:
SE
:
S(D)
:26 Nov.:128-40 E:
:
:
150'
:
4:1435 Η:
0-02 S:
--
:28 Nov.:126-40 E:
:
:
6 mi.:
:
R
: Probably "DAVE"
:or "PETE",
:Small pip on
:
:
:SD.
-
6
-

— page 167 —
REFER TO NO.
SS167/
DECLASSIFIED
U. S. S. NARWHAL (SS 167)
(H) ATTACK DATA (Cont.):
keep both guns firing nearly on the beam. Forty-three rounds
were expended, using high capacity ammunition, fuse settings
on "super-quick". Average range 3500 yards. Pointing and
training were excellent. As a conservative estimate, 65 per-
cent hits were obtained. HC ammunition detonating within the
ship started heavy fires and scattered sprays of shrapnel two
to three hundred yards ahead and astern of the ship. Target was
hit on third round, stopping almost immediately. His super-
structure burned very heavily and his mainmast was gone after
seven or eight salvos. Considering how long the target took to
sink, at this point it would have been smart gunnery to have
shifted to common shell. In the excitement of seeing shell after
shell burst on impact, no one thought of it. One lookout stated
that he saw flashes of returning fire. This was unverified by
any other personnel on bridge.

Ammunition supply continues to be a problem. The for-
ward magazine was unable to supply #1 gun as rapidly as desired.
Fuses were set in the magazine. There is no provision for proper
training of the ammunition handling party. Dummy charges could
be carried by tender, but in a loaded magazine, a portion of the
service ammunition would have to be unloaded before dummy runs
could be undertaken. With new personnel constantly being received,
their training consists almost solely of verbal instruction. In
protected waters we have held drills of running up live ammunition
and placing it on deck. However, this is done without setting
fuses and doesn't fill the need of really intensive training.
Similar difficulties were experienced during bombardment mission
of fifth war patrol.

The gunnery officer, Lieutenant J. T. HINE, USN., is to
be commended for excellent spotting and gun control.

(I) MINES:
None.

(J) ANTI-SUBMARINE MEASURES AND EVASION TACTICS:
None.

(K) MAJOR DEFECTS AND DAMAGE:
None.

- 8 -

— page 168 —
REFER TO NO.
SS167/
U.S. S. NARWHAL (SS 167)
DECLASSIFIED
(L) RADIO:
Radio reception was good in general and all serials
received were complete.
Last message received CTF 71 serial 61 of December.
Last message sent
NARWHAL serial ONE of December.
(M) RADAR:
The performance of both radars was excellent through-
out the patrol. Land echos were picked up at a range greater
than 60,000 yards on the SJ, while a small one-man outrigger
canoe was tracked to 1,300 yards. Also during the surface gun
attacks of 5 December, shells could be followed out on the SJ
and the distance from water splash to target determined.
(N) SOUND:
Sound conditions were good.
(0) DENSITY LAYERS:
None.
(P) HEALTH, FOOD, AND HABITABILITY:
The following is a list of complaints treated at sick
calls on this patrol:
Abrasions (minor)
Anemia, secondary
Edema
Headaches
Lacerations
Heat rash
Fungus
Constipation
Ingrown toenail
Gastro-enteritis
Toothache
3
1
1
12
3
1
5
6
1
10
1
The general health of the crew has been very good.
There were two outbreaks of what appeared to be food
poisonings. Men who had such symptoms complained of headache,
upset stomach, diarrhea, and general malaise. Their stools were
of a watery nature. Some felt as though they wanted to vomit.
- 9 -
0

— page 169 —
REFER TO NO.
SS167/
U.S.S. NARWHAL (SS 167)
DECLASSIFIED
(P) HEALTH, FOOD, AND HABITABILITY (Cont.):
One case had what appeared to be blood in his stool. This
was the only man who had to be placed on the sick list. Treat-
ment consisted of Milk of Magnesia and Bismuth Subnitrate.
Some of these symptoms persisted for five or six days. Invest-
igation has failed to disclose the cause of this outbreak.
close watch has been kept on the sanitary conditions of the
galley and the food handlers for possible cause and carriers.
A

The first few days of this patrol found the temperature
of the ship somewhat higher than usual. Complaints were registered
from the CPO sleeping quarters where the temperature had been up
to 120 degrees. This is the only sleeping compartment not equipped
with an air-conditioning unit. After four or five days at sea,
the temperature had decreased to a comfortable degree.
tablets were made available during whole patrol and were used
freely.
Salt
Fresh water for drinking and bathing was available at
all times.

It was found necessary to survey several sacks of
potatoes because of rot.

The following is a list of complaints treated for
civilian passengers:

Lacerated wound | 1
Malaria | 2
Seasickness | 2
Tropical ulcer | 3
Gunshot wound | 1
Asthma | 1
Constipation | 2

Total number of complaints treated during this patrol:
56
(Q) PERSONNEL:

The tonic of the gun action of 5 December was a sorely
needed medicine. Missions of this sort are very trying to both
officers and crew. Their privacy is invaded by female passengers
and their stevedore labor is not enjoyed. Proper planning on
the part of the Army prior to loading at PORT DARWIN would have
enabled the crew to take a two day "blow" instead of all hands

- 10 -
0

— page 170 —
REFER TO NO.
SS167/
DECLASSIFIED
U.S. S. NARWHAL (SS 167)
(Q) PERSONNEL (Cont.):
working day and night to get the cargo aboard.

The assistance of Lieut-Comdr. C. FARSONS, D-V(S),
USNR., was very valuable on both this patrol and the previous
one. FARSON's knowledge of PHILLIPINE waters and enemy
installations makes his presence on missions of this sort an
asset greatly appreciated by the Commanding Officer.
(R) MILES STEAMED - FUEL USED:
PORT DARWIN to Area
In Area
1692 miles
20260 gallons
740 miles
8980 gallons
Area to PORT DARWIN
1684 miles
35212 gallons
PORT DARWIN to FREMANTLE
1962 miles
44580 gallons
(S) DURATION:
Days enroute to Area
7
Days in Area
4
Days enroute to base
12
Days submerged
5
(T) FACTORS OF ENDURANCE REMAINING:
Torpedoes
Fuel
Provisions
Personnel Factor
6
12,000 gallons
20 days
14 days
(U) REMARKS:
1 1291
The enforced wait for evacuees on the morning of
5 December was inexcusable. This delay necessitated lying to
off an unfriendly patrolled shore, making flashing light signals
every five minutes for a period of over two hours. The delay
was the result of complete lack of preparedness on the part of
the evacuees and inability of the military forces ashore to carry
out instructions received. The safety of the ship was unnecessari-
ly hazarded. The entire party could have been aboard within thirty
minutes of the time our first signal was flashed to the beach.

The lack of loading facilities at PORT DARWIN and complete
unpreparedness of the Army authorities bespeaks inattention to
details. Part of the cargo had to be re-boxed to permit loading
through our 25" hatches. No thought had been given to the problem
of getting the stores down to the ship from the considerable
height of the jetty.
0

— page 171 —
16910
FE24-71/A16-3
Serial: 00494
DECLASSIFIED
UNITED STATES NAVY
12/gms
24 DEC 1943
1 1291
FIRST ENDORSEMENT to:
USS NARWHAL Secret ltr.
SS167 of 18 Dec., 1943.
Report of 8th War Patrol.
From:
To:
Via:
Subject:
1.
Commander Task Force SEVENTY-ONE.
Commander in Chief, UNITED STATES FLEET.
Commander SEVENTH FLEET.
U.S.S.NARWHAL Report of Eighth War Patrol -
Comment on.

In view of the highly secret nature of the infor-
mation contained in this report the classification is hereby
changed to "SECRET" and the distribution strictly limited.
2.
The Eighth War Patrol of the NARWHAL, covering a
period of twenty-three days, was conducted performing special
missions in the PHILIPPINE ISLANDS Area. The NARWHAL performed
all assignments in a most expeditious and commendatory manner.
3.
The NARWHAL made one submarine target contact which
she destroyed by a well executed gun action on 5 December, 1943.
The sinking of this valuable medium AP-AK without expenditure of
torpedoes or unduly endangering the submarine is an excellent ex-
ample of proper use of weapons provided.
4.
This patrol is considered "successful" for purpose
of award of the Submarine Combat Insignia.
5.
The Force Commander congratulates the Commanding
Officer, Officers, and Crew on the successful completion of special
hazardous assignments in addition to inflicting the following
[HANDWRITTEN: damage] by gunfire
[HANDWRITTEN: CORRESPONDENCE] on the enemy:
[HANDWRITTEN: UNDER]
[HANDWRITTEN: SINK]
[HANDWRITTEN: 1 - AP-AK (HIMENO MARU) - - - 4,000 tons.]
[SIGNATURE: R. W. CHRISTIE.]
DISTRIBUTION:
Vice Opnav (1)
Com 7th Flt (1)
ComSubsPacFlt (1)
File
[SIGNATURE: B. L. CARR,]
Commander, U. S. Navy-
Flag Secretary.
σ

— page 173 —
REFER TO NO.

U. S. S. NARWHAL
DECLASSIFIED
1ST COPY
3 1339
[STAMP: NAVAL INTELLIGENCE 5510 10]
BY 916
DATE 2-29-68

Care of Fleet Post Office,
San Francisco, California,
15 February 1944.

From:
To :
Via :
The Commanding Officer.
The Commander in Chief, United States Fleet.
(1) The Commander Task Group SEVENTY ONE POINT ONE.
(2) The Commander Task Force SEVENTY ONE.

Subject:
U.S.S. NARWHAL, Report of War Patrol Number NINE.

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

1. Enclosure (A), covering the Ninth War Patrol of
this vessel conducted in the PHILIPPINE ISLANDS during the
period 18 January 1944 to 15 February 1944, is forwarded
herewith.

[SIGNATURE: T. D. LATTA]

— page 174 —
REFER TO ΝΟ.

U. S. S. NARWHAL

(A) FROLOGUE:
Completed Lighth War Patrol at FREMANTLE, WERN
AUSTRALIA on 18 December 1943. Refit conducted by U.S.S.
PELIAS. "Partially" docked in marine railway (to loading
capacity of railway) for repacking of stern tube and rudder
post. Sound tested, four day training period, fired two
exercise torpedoes, thirty rounds of 6", all 20mm's.

(B) NARRATIVE (All times HOW, unless otherwise specified):
18 January
1324
2127
Underway from FREMANTLE, WESTERN AUSTRALIA, in company
with U.S.S. LARK. Conducted submerged training runs
and night radar runs in exercise area.
Released escort, set course to DARWIN, NORTHERN
TERRITORY.
18-24 January
Uneventful, conducted daily dives, drills, battle
surface, exercised control party, made one deep dive.

25 January
1355
1754 KL Moored starboard side to boom jetty, DARWIN, began
Joined escort, ML-814。
loading cargo, fuel and water.

26 January
0740 KL Underway for FHILIPPINE area, with 90 tons ammunition
and cargo. Commander F. K. LOOMIS, USN., on board as
passenger.
Dived for trim.
Surfaced.
0823
0846

27 January
0629
0630
0645
1235
Radar contact 10 miles. Range closed to 5 miles, and at
Dived.
Flane not visible through periscope. Plane
contact No. 1.
Surfaced.
Sighted one heavy bomber, type unknown, distance 12
miles, altitude 500 feet on westerly course, disappeared
in direction of ROMANG Island. No contact on SD. Flane
contact No. 2.

28 January
0522
0612
Sighted sail boat, closed to investigate.
Alongside sail boat, manned by Malayan natives. Ship
contact No. 1.

- 1 -

— page 175 —
REFER TO NO.
3 1339
U. S. S. NARWHAL
(B) NARRATIVE (Cont.):
0806 SD contact 13 miles, faded at 11 miles. Plane contact
No. 3.
0815 SD contact reappeared at 5 miles, dived. Flane contact
No. 4.
0816 One bomb, not close.
0853 Sighted single float plane type "DAVE", altitude 1000
feet,, range 4 miles, westerly course. Plane contact
No. 5.
0939 Surfaced.
1030 Dived. Stern lookout reported plane 500 feet, 4 miles,
closing. Not sighted by OOD. Plane contact No. 6.

29 January
1853 Closed light believed to be burning ship, turned out to
be beach fire on LATALATA Island.

30 January
1413 Radar contact 18 miles, closed to 16, opened again and
faded out at 18. Plane contact No. 7.

1 February
1340 Sighted masts briefly on port bow, closed for one hour,
nothing further sighted. OOD thinks may have been SS.
Ship contact No. 2.
1900 Entered SURIGAO STRAIT.

2 February
0123 Completed transit of strait, conducted submerged patrol
during daylight off CAMIGUIN Island.
2230 Entered SULU Sea.

3 February
0530 Dived, conducted submerged patrol off southern tip of
NEGROS.
0622 Master gyro out of commission, steering by Mark IX.
1854 Surfaced, proceeding north to PANAY.

4 February
0530 Dived, conducted submerged patrol off NASO Point, PANAY.
1404 Sighted small sampan on northerly course, distance 4 miles.
Ship contact No. 3.
1432 Sighted second small sampan on northerly course, distance
4 miles. Ship contact No. 4.
1843 Surfaced, proceeding to PANDAN Bay for first mission.

5 February
0245 Sighted numerous lights along beach, eventually counted
23, later told that the natives were making salt.
- 2 -

— page 176 —
REFER TO NO.
3 1339
U. S. S. NARWHAL
(B) NARRATIVE (Cont.):
0535
Dived off LIBERTAD, PANAY.
0835
Sighted proper security signal on beach.
1759
Surfaced, 1200 yards from LIBERTAD. Began rigging ship
to unload cargo.
1825
Col. GARCIA, representative of Col. PERALTA, on board.
Began unloading to sailing craft. Began dismantling
master gyro.
2140
Completed unloading, received five male passengers
(servicemen) and one British subject. On advice of
Col. GARCIA refused passage to one Filipino who stated
he had been navy machinist's mate with Insular forces
prior to war.
2155
Underway, clearing PANDAN Bay, steering by Mark IX
compass.
2253
Dived for trim.
2317
Surfaced.
6 February
0200
Master gyro in commission.
0532
Dived, conducting submerged patrol off NASO POINT.
1838
Surfaced.
7 February
0007
Sighted vessel on starboard bow. Coached radar on,
contact at 6000 yards. Ship contact No. 5.
0010
Radar interference, took avoiding action, believe SS,
probably ROBALO. Radar interference continued at
irregular intervals until 0100.
0529
Dived, approaching BALATONG POINT.
0724
Master gyro again out of commission.
1110
Sighted proper security signals on beach.
1730
Six or more sail boats in sight, between NARWHAL and
beach.
1759
Surfaced, 1000 yards from BALATONG POINT.
1810
First boat alongside with Col. ABCEDE, began unloading
cargo.
1925
Completed unloading 45 tons of cargo, received 8 women,
9 children, 5 men, 6 service men as evacuees.
1949
Underway, standing off coast of NEGROS, Master gyro back
in commission.
2101
Dived for trim.
2117
Surfaced.
2340
Entered MINDANAO Sea.
8 February
0256
Sighted vessel dead ahead. Ship contact No. 6.
0300
Radar contact 6750 yards, began radar plot. At 4800
yards, vessel identified as small barge-like craft,
speed about 6 knots, on northerly course, heading
- 3 -

— page 177 —
REFER TO NO.
U. S. S. NARWHAL
(B) NARRATIVE (Cont.):
3 1339
toward SIQUIJOR Island. Decided not to attack with
guns as target too small to warrant disclosure of
position. Avoided.
0527
Dived, east of SIQUIJOR Island, conducted submerged
patrol during day.
1244
Sighted sail boat, avoided. Ship contact No. 7.
1836
Surfaced, heading for SURIGAO STRAIT.
2017
Lat. 9-32 N; Long. 124-44 E. sighted small boat on
starboard beam, distance 4000 yards. Not picked up on
radar. Avoided. Ship contact No. 8.
2357
Entered SURIGAO STRAIT.
9 February
0412 Completed transit of strait, entered PACIFIC and heavy
seas. Passengers uniformly seasick.
0557
Dived for trim.
0625
Surfaced.
0629
Radar contact 4 miles, closing, dived. Nothing in sight
through periscope. Plane contact No. 8.
0637
Surfaced.
10 February
2015
Transmitted NARWHAL ONE.
11 February
1000 Sighted "JANICE" bomber, 800 feet, distance 4 miles,
on easterly course. Dived. Plane contact No. 9.
1026
Surfaced.
12 February
0548
0625
1630
2230
Sighted small sailboat, did not close. Ship contact No. 9.
Sighted small sailboat, did not close, Ship contact No. 10.
Reached possible convoy track between TIORO STRAITS and
AMBON. Changed course to scout along track.
No contacts, altered course to proceed to DARWIN.
13 February
1000
Reverend McKinley conduced Divine Services in forward
torpedo room.
14 February
0902
0919
Radar contact, 2 miles and sighted medium bomber 2000
feet, on northeasterly course, dived. Plane contact
No. 10.
Surfaced.

- 4 -

— page 179 —
REFER TO NO.
U. S. S. NARWHAL
3 1339
(C) WEATHER:
Normal for Northeast Monsoon.
(D) TIDAL INFORMATION:
Estimates obtained from the Coast Pilot and Sailing
Directions are good for most areas. Little information could be
found on SURIGAO STRAIT as no constants for comparison with
SAN BERNARDINO were available. It is believed that the flood
current (westerly) runs most of the time during the Northeast
Monsoon.
(E) NAVIGATIONAL AIDS:
None.
(F) SHIP CONTACTS:
:Time :Lat.
: Long.
No.: Date
1:0522 Η:
:
:
:
Est.
:Initial:Course : How con:
:Type(s): Range : Speed : tacted : Remarks
:
4-53 S:Sail- :8 miles: East : S(D)
28 Jan. 126-41 E:boat :
:4 knots:
2 :1340 Η : 9-41 N:Unknown:8 miles: Unknown: S(D)
:1 Feb. 126-30 E:
:
:
::
3 :1404 Η: 10-23 N: Sampan : 4 miles: 350
:
Manned by Malayan
natives.
: May have been SS.
:Brief contact by
:OOD.
:
:
:
P
:
4 Feb. 121-53 E:
:
:5 knots:
:
4 :1432 H : 10-22 N: Sampan : 4 miles: 030 :
14 Feb. 121-53 E:
P
:
:
:5 knots:
:
5 :0007 H: 9-18 N:Unknown: 6000 :
: S(N)
:Had interference
:7 Feb. 122-08 E:
: yards :on SJ for an hour,
:believe friendly
55.
8-58 N:Motor
:8 Feb.
123-38 E:barge
:
:
6:0256 H:
7 :1244 Η : 9-17 N:Sail-
8 Feb. 124-12 E:boat
:
8 :2017 Η : 9-32 N:Launch : 4000 : E
8 Feb. 124-44 E:
9:0548 Η : 2-35 S:Sail-
12 Feb.126-38 E:boat
10 :0625 H: 2-37 S:Sail-
12 Feb.126-26 E:boat
Note: Sailboats at sites for delivering of cargo not listed.
6-
: 6750
: N
: S(N)
:
: yards :6-8 Kts:
:4 miles:
SE
:4 knots:
:
P
:
:
: S(N)
:
: yards :5 knots:
:4 miles:
:
: S(D)
:
:
:
:5 miles:
: S(D)
:
:
:
:

— page 180 —
REFER TO NO.
U. S. S. NARWHAL
(G) AIRCRAFT CONTACTS:
Est.
8
3 1339
No.: Date
:Time
: Lat.
:
: Long..
:Type(s):Range
:
:
:
:
7-45 3:
1 :0629 H :
27 Jan. 128-51 E:
2 :1235 Η : 7-26 S:Heavy
27 Jan. 128-05 E:bomber :
:Initial: Course : How con-:
:Alt.
:tacted
: Remarks
:
:
:10 mi. :
:
R
:Plane not sighted.
:
:
:
:
:12 mi.:
W
:
S(D)
: Did not dive.
: 500'
:
:
3:0806 H:
4-33 3:
:13 mi. :
:
R.
28 Jan.: 126-22 E:
:
:
:
4 :0814 H:
4-32 3:
: 7 mi. :
:
R
28 Jan. 126-22 E:
5:0853 Η : 4-31 3: DAVE : 4 mi.: W
:
P
28 Jan,126-21 E:
:
: 1000':
6:1030 Η :
4-21 S:
: 4 mi.:
N
:
S(D)
28 Jan. 126-16 E:
: 500'
:
7 :1413 Η : 2-52 N:
:18 mi. :
:
R
: 30 Jan.: 126-55
:
:
:
8:0629 H: 10-36 N:
: 4 mi. :
:
R
19 Feb. 126-10 :
:
:
9 :1000 Η :
1-29 N:JANICE : 4 mi.:
E
:
:
:
S(D) : Dived.
11 Feb. 126-46 E:
:
: 800'
:
:
Not sighted.
:Probably same as
:contact 3, closed
:to 5 miles, dived,
:one bomb 3 min.
:after dive.
:Probably same as
:contact 3, 40
: Not sighted by
:OOD.
:Contact faded,
:did not dive.
:Plane not sighted.
10 :0902 H: 10-07 3: Medium : 2 mi. : North- : R and : Dived.
P
14 Feb.: 129-01 E:Bomber :
:easter-:
S(D)
:
:
:
:
::
:
- Periscope
(H) ATTACK DATA:
:
:
:
:ly
: 2000':
:
:
:
R
--
Radar
S(D) Surface, day S(N) Surface, night.
None.
(I) MINES:
None.
(J) ANTI-SUBMARINE MEASURES AND EVASION TACTICS:
None.
(K) MAJOR DEFECTS AND DAMAGE:
1. Variable ballast tank liquidometers still remain a
major defect as reported on the Seventh and Eighth Patrols.
When
-
7
-

— page 181 —
REFER TO NO.
3 1339
U. S. S. NARWHAL

(K) MAJOR DEFECTS AND DAMAGE (Cont.):
compensating the ship after unloading 180,000 pounds of cargo,
only two (#3 auxiliary and forward trim) out of six liquidometers
could be used. New liquidometers are to be installed following
next patrol.

2. The GM-248 mufflers installed on the four main engines
in place of GM-278A mufflers proved unsatisfactory. The engines
smoke more than usual, continually throw sparks, cannot carry as
great a load as previously. The higher back pressure, especially
at high speeds, has caused several leaks in the air box header.

3. The ice machine circulating water line cracked. During
repairs, a 5-ton air conditioning plant was cross-connected to the
ice-box for refrigeration. When the ice machine was cut back in,
the gas system was found to be out of balance causing the plant to
cycle. Approximately twelve hours were needed to balance the system.
This latter casualty was caused by untrained personnel. It is
recommended that the complement of these vessels with the large
air-conditioning and refrigeration installation (25 tons and 1.8
tons respectively) be increased to include at least one refrigeration
machinist's mate.

4. The master gyro compass needs a complete overhaul.
On 3 February the repeaters began to jump twenty degrees without
cause, All readings on control and amplifier panel were normal.
The transmission and follow-up systems both appeared normal. On
disassembly, the mercury contact pin (Arma pc. 50069-4) and inner
contact pin (Arma pc. 52222-5) were found coated with what appeared
to be an oxide of mercury. The pins were cleaned and new mercury
put in the cup. The follow-up motor appeared slightly sluggish and
the spare was installed. The gyro was started and after thirty-six
hours a defective 6A6 amplifier tube caused a follow-up failure.
The tube was replaced and gyro put back in commission. The gyro
still shows a variable error from 10 West to 20 East.

5. The pit log continues to be erratic.

(L) RADIO:

Reception was generally good and all message serial were
received on "Baker" schedules.

No difficulty was encountered in transmitting the one
message sent.

Last serial received Number Thirty.

Last serial transmitted Number One.
- 8 -

— page 182 —
REFER TO NO.
U. S. S. NARWHAL
3 1339
(M) RADAR:
The operation of both radars was excellent throughout
the patrol.
During evening of 5 February while unloading, a small pip
appeared at a range of 1700-1900 yards on a seaward bearing.
Light conditions were still good and nothing was visible on bearing
indicated. The pip persisted for two hours. Again on 7 February
while unloading, a similar pip appeared. On both occasions we were
lying to in close proximity to the beach. This phenomena is apparent-
ly a phantom introduced by land masses on reciprocal bearings.
Similar indications on previous patrols have been reported as
contacts.
(N) SOUND GEAR AND SOUND CONDITIONS:
Sound gear operated satisfactorily and sound conditions
in the area were good.
(0) DENSITY LAYERS:
None.
(P) HEALTH, FOOD, AND HABITABILITY:
Health and habitability was in general good though
crowding was experienced due to cargo on board and later due to
the embarkation of 34 passengers. Passengers were accommodated
in the forward and after torpedo rooms. The following complaints
are reported:

| | Ship's Company | Passengers |
|---|---|---|
| Furuncles | 3 | 1 |
| Conjunctivitis | 4 | - |
| Urethritis | 5 | - |
| Colds | 4 | - |
| Arthritis | 1 | - |
| Otitis Media | 1 | 1 |
| Skin ulcers | - | 1 |
| Malaria | - | 1 |

Total sick days - 0.

Food in general seemed of poorer quality than that en-
joyed on previous patrols. Beef especially was tough and stringy
regardless of how cooked and served.

- 9-

— page 183 —
SAF
FIL
KODAK
REFER TO NO.
3 1339
U. S. S. NARWHAL
(P) HEALTH, FOOD, AND HABITABILITY (Cont.):
The fresh frozen foods customarily enjoyed by submarines
operating out of Pearl Harbor would be a most welcome addition to
our diet.

(Q) PERSONNEL:
No remarks.

(R) MILES STEAMED - FUEL USED:
FREMANTLE to DARWIN
2065 mi.
38,650 gallons.
*DARWIN to rea
1732 mi.
31,570 gallons.
In Area
1005 mi.
18,510 gallons.
Area to DARWIN
1732 mi.
35,080 gallons.

*Received 33,923 gallons in DARWIN,
Delivered 4500
gallons lub oil (Navy symbol 9370)
to Section Base,
DARWIN, to compensate for cargo.

(S) DURATION:
Days enroute to area
15
Days in Area
8
Days enroute to Base
6
Days submerged
7

(T) FACTORS OF ENDURANCE REMAINING:
Torpedoes | Fuel | Provisions | Personnel Factor
10 | 30,840 gallons | 45 days | 45 days

(U) REMARKS:
On the evening of 7 February, we received splendid
cooperation from Col. [UNCLEAR: ABCDE]. His boats were adequate to
handle the cargo and had already been assigned loading stations.
Excellent prior preparation and supervision of ship's company
on the part of the First Lieutenant, Lieutenant (jg) G. H.
RHORDACK, USNR., enabled us to unload 45 tons of cargo, take on
passengers and stand out of the bay one hour and fifty minutes
after surfacing.

- 10 -

— page 185 —
Reg. No. Om 02003
R.S. No. 3 1339

UNITED STATES FLEET
COMMANDER SEVENTH FLEET
A16-3(2)/(F-2/rd)
Serial: 00548
MAR 14 1944

DECLASSIFIED

SECOND ENDORSEMENT to
CO, USS NARWHAL, Secret
Ltr. of 15 Feb. 1944.

From: The Commander Seventh Fleet.
To : The Commander in Chief, United States Fleet.
Subject: U.S.S. NARWHAL Report of Ninth War Patrol.

1. Forwarded.

[SIGNATURE: R. C. BURNS]
R. C. BURNS,
By direction.

/<

— page 186 —
REFER TO NO.
SS167/
DECLASSIFIED
U. S. S. NARWHAL (SS 167)
1st Copy

[HANDWRITTEN: DEL S. PERT 5510.10]
By [SIGNATURE: Gee]
[HANDWRITTEN: A2-22-6]

Care of Fleet Post Office,
San Francisco, California,
20 March 1944.

From:
To :
Via :
The Commanding Officer.
The Commander in Chief, United States Fleet,
(1) The Commander Task Force SEVENTY-ONE.

Subject:
U.S.S. NARWHAL, Report of War Patrol Number TEN.

Inclosure:
(A) Subject Report.
(B) Track Charts (5) (ComTaskFor 71 only).

1.
Enclosure (A), covering the TENTH War Patrol
of this vessel conducted in PHILIPPINE ISLANDS during the
period 16 February 1944 to 20 March 1944, is forwarded herewith.

[SIGNATURE: F. D. Latta]
F. D. LATTA.

5 1158

[HANDWRITTEN: M]
[HANDWRITTEN: D]

— page 187 —
REFER TO NO.
SS167/

U. S. S. NARWHAL (SS 167)

PROLOGUE:
Completed NINTH War Patrol at DARWIN, AUSTRALIA, on
15 February 1944. Loaded 80 tons ammunition and stores,
embarked Lieutenant W. H. KIMBROUGH, I-V(S), USNR., Lieutenant
M. M. WHEELER, D-V(B), USNR., Second Lieutenant R. SILVA,
A.U.D., and four Filipino enlisted ratings of A.U.S.

(B) NARRATIVE (All times How unless otherwise indicated):

16 February
0708 KL Underway from DARWIN.
0913 IK Dived for trim. Required eleven minutes to get both
ends under!
0938 IK Surfaced.

17 February
0300 Passed through BARRIER, between BABAR and SERMATA ISLANDS,
1222 Sighted sailboat. While scanning him, light bomber
appeared out of a cloud on a northerly course, altitude
500 feet. Plane contact No. 1.
1224 Dived. From periscope depth observed plane now on
southerly course, turn in shallow bank to northward and
disappear over horizon. Believe friendly Douglas bomber.
Markings very indistinct, but wing top surface light
colored with white strips or chevrons at wing tips.
1252 Surfaced. Sailboat no longer visible.

18 February
0330 Decoded CREVALLE 171800 to NARWHAL and changed course to
intercept reported contact.
0500 Getting light astern of us while BURU ISLAND in deep
shadow could successfully shield any contact. On
estimated contact course, and at
0512 Dived.
0540 Sighted tops of AK. Contact No. 1. Range estimated
at 14,000 yards, course 1000T, angle on bow 800 star-
board. Commenced approach.
0549 Bearing showed a change to left and TDC operator
thought angle was port instead of starboard. Began
a swing to left, took another look and located escort,
contact No. 2. Believe now I had picked up escort on
previous look, hence apparent change of bearing to
left. Swung back to normal approach course. Escort
trailing target.

- 1 -

5 1158
se
σ

— page 188 —
REFER TO NO.
SS167/

U. S. S. NARWHAL (SS 167)
(B) NARRATIVE (Cont.):
0609
Sound reported echo ranging.
0614
Sound reported faint screws. Range then about 10,000
yards. Set torpedoes on low power.
0638
Range increasing. Closest range reached was 8000 yards.
Broke off approach. Target identified as similar to
KASAGISAN MARU, p. 244 of ONI 208-J. Lightly loaded.
Escorted by CHIDORI type DD. Target was running at 12
knots within 2 miles of coast, not zigzagging. CHIDORI
trailed during early stages of approach and later moved
up ahead as vessel neared TLINJONG WATINA of BURU.
0921
Surfaced. Did not send contact, since we could add
nothing to CREVALLE report other than names of vessels.
1305
Sighted sailboat, avoided.
1422
Sighted sailboat, avoided.
1810
Sighted sailboat, avoided.
19 Febuary
Uneventful.
20 February
0300
Entered CELEBES SEA via BANGKA IASSAGE.
0710
Stern lookout sighted plane. Plane contact No.2.
0711
Radar contact at 22 miles, assumed same as plane contact
No. 2. We were 55 miles from MANADO and just west of
a line between MENADO and DAVAO. Plane disappeared
without sighting us.
2000
Began running limiting ellipse search curve covering
possible convoy track.
21 February
0241
Sighted and radar contact small vessel 2400 yards,
probably fishing sampan, tracked at 4 knots, avoided.
Contact 10. 3.
0640
sighted smoke of ship on horizon, contact No. 4. Assumed
it was desired contact on east bound ship and changed
course to overtake. Range closed rapidly and when tops
in sight, determined ship to be zigzagging on southwesterly
buse course. Maneuvered to place NARWHAL ahead of
him, and at
0807
Dived, commenced approach. Target did not close.
Assumption that he was headed for MACASSAR incorrect.
Broke off approach.
0934
Surfaced, smoke still in sight, began "end around" run.
During the day target gradually increased speed from

- 2 -
90
0

— page 189 —
REFER TO NO.
SS167/

U. S. S. NARWHAL (SS 167)
(B) NARRATIVE (Cont.):
original estimate of 7 knots to 12.5 knots. By 1200 his
base course was estimubed at 280°, heading him for
Tanaken. He was unescorted and no planes were sighted
all day. Attempted to increase own speed to 16 knots, but
we smoked so heavily I was afraid we would be sighted.
Target smoked intermittently all day, occasionally zigging
in our direction so that by 1300 we had his mast and
funnel sequence and determined him to be similar to
HAVANA MARU. By 1700 we had gained 50 degrees in bearing
and were in a favorable position for night radar attack
by closing him as soon as darkness permitted.
Target obscured by a rain squall which persisted until
after sunset. As soon as visibility permitted, closed
targets track rapidly, but no further contact was made.
Covered all possible courses from last known position
to TARAKAN, then headed for SIBUTU, thinking he might
head for there, having first led us to believe he had
other plans. No further contacts.

22 February
0545
1911
2352
Dived, approaching MANTADUAN ISLAND. No security
signals were sighted, nor was there any evidence of
provision for unloading cargo. Several small out-
rigger canoes sighted during the day. Cruised along
full length of island within 1000 yards, could see
villages and people but nothing construable as a signal.
Surfaced, headed south for radio transmission.
Completed transmission of NARWHAL ONE.

23 February
0537
Dived, off MANTABUAN. Same conditions as yesterday,
no signals.
Bludge tank sea valve fouled, all forward heads out of
commission, due to inability to blow tank.
1855
Surfaced, five miles south of MANTABUAN, lying to. Put
diver over to plug tank discharge so valve could be
disassembled.
2045
2050
Valve cleaned and assembled, diver removed plug, and at
Underway, heading toward SIBUTU PASSAGE.
2200
Received CTF 71's serial SEVEN THREE.

24 February
0000
Entered SIBUTU PASORGE.
0132
Contact on SJ at 6700 yards. Had noted interference on
DJ for about 30 minutes. Assumed contact was RODALO,
not sighted. Contact No. 5.
- 3 -
100

— page 191 —
REFER TO NO.
377
U.S. S. NARWHAL (SS 167)
(B) NARRATIVE (Cont.):
29 February
Uneventful, cruising on surface.
1 March
0508
Dived east of SIQUIJOR ISLAND. Numerous sailboats in
sight during day.
1843
Surfaced, heading for BUTUAN BAY, Avoided 3 small radar
contacts during night.
2 March
0510
Dived, off CABADBARAN, several sailboats in sight during
day, seas choppy.
1000
Sighted proper security signal on beach.
1750
Surfaced, one mile off CABADBARAN beach. About 150
people on beach, watching us, dozen or more beached
sailboats, none underway. One batil visible in direction
of NASIPIT, distant about 5 miles. No one came out to
meet us nor did any additional signal appear on beach.
I was suspicious of lack of reception, and headed for
distant boat, thinking it might be Jap patrol.
1850
Closed two masted outrigger, attempted to exchange signals.
Boat came alongside with Lieut-Comdr. WILSON, Lt. Col.
MacLEISH and Major CHILDERS aboard. They stated Col.
FERTIG at AGUSAN RIVER mouth, too rough to tow barge into
bay. Headed into river channel. Murky night, too many
unidentifiable peaks for good radar navigation. Got as
near river mouth shoal as I dared and lay to. Began
rigging topside to put own boats in water for delivery
to Col. FERTIG.
2030
Col. FERTIG on board. Refused his request to proceed up
channel to barge, also his request to delay unloading
until tomorrow. Sent launch in to have barge towed to
Narewit-1.
2230
Both boats waterborne, only one will run.
2350
Launch with barge alongside, began unloading. This
process exceedingly difficult, due to cargo for this
spot having been loaded first. Delivered two 26 foot
diesel whaleboats to Col. FERTIG.
3 March
0210
Received 28 passengers, 20 service men, 8 civilians
including 2 women. No children this time!
0225
Completed unloading 70 tons.
0229
Underway, standing out of BUTUAN BAY.

- 5 -
[HANDWRITTEN: 120
0]

— page 192 —
REFER TO NO.
88167/

U. S. S. NARWHAL (SS 167)

(B) NARRATIVE (Cont.):
0323
0353
0808
Dived for trim.
Surfaced.
Passed small sailboat abeam 25 yards. They doused sails
at our approach. Five Filipinos stood lined up for
inspection and with expressionless faces began solemn
bowing at our approach. When I waved and they could
see white men on the bridge, all of them broke into
smiles and cheers. We passed in an aura of good fellow-
ship. Sighted several other bouts during morning.
Fassed one close aboard and had above experience repeated.
Tossed them some cigarettes and became boon companions.
Contact on SD, 9 miles. Closed to 3 miles, dived.
Contact No. 4. Nothing sighted through periscope.
Surfaced.
0935
1019
1104
Contact on SD, 3 miles, dived. Contact No. 5. Nothing
sighted through periscope. Stayed down to have lunch
in peace.
1253
Surfaced.
1552
Contact on SD, 5½ miles, dived. Contact No. 6. Nothing
sighted through periscope.
1611
Surfaced.
1723
Sighted masts and stacks of vessel on starboard bow,
distant 8 miles. Contact No. 12.
1725
Dived, began approach. Target unescorted, zigzagging,
not smoking, making very slow speed. Decided later
he was probably waiting for an escort to join him,
1826-20 Began firing submerged bow tubes.
1827-40
Saw and felt one hit in bow of AP. Large explosion,
heavy black smoke cloud obscured entire ship. When
smoke cleared away target was stopped on even keel, bow
gone back to his bridge, sound heard breaking up noises,
probably sinking bow section. stacks and masts still
standing. Similar to KEIHUKU MARU, p. 23 of ONI 203-J.
1836
Maneuvering into position for another shot, target opened
fire from fantail with about 5" gun. His deflection was
good. On sweep around, discovered another vessel astern.
Contact No. 13. Thought as first we were undetected by
escort and continued to try to obtain position for
another shot at AP. Decided gunboat draft so shallow
that likelihood of successful torpedo hit was very small.
Escort suddenly turned to present a zero angle on the
bow and headed up our track. Rigged for depth charge,
swung away and started deep.
1846
1848
First depth charge,
1849
Depth charges Nos. 2, 3, 4. Number two was the closest
and most violent of the 200 odd NARWHAL has chalked up
on the scoreboard. Hatch wheels spun, lights went out,
TDC jammed and blew fuses, port annunciator splintered

- 6-

13 a
0

— page 193 —
REFER TO NO.
SS167/
U.S. S. NARWHAL (SS 167)
(B) NARRATIVE (Cont.):
in a symetrical sunburst design. Escort crossed
directly overhead between #2 and #3 charges.
1852
Two more.
1855
At 220 feet, with a warm gradient blanket pulled over
our heads.
1910
Two more, further away.
1912
Peculiar noise as of a handfull of gravel dropping on
deck. Had a bad minute, waiting for something to detonate.
1929
Number 9 and the final, number 10. The passengers say
they prefer foxholes.
2106
At periscope depth in brilliant moonlight, nothing in
sight.
2135
Surfaced, gravity 1.117, headed out of MINDANAO SEA
at 14 knots.

4 March
On surface, in SULU SEA, uneventful.

5 March
0528
0630
1813
Dived off BOHI GANSA, TAVITAVI ISLAND.
Sighted proper security signal on beach.
Surfaced, had to keep both shafts in commission to
permit maneuvering as currents set us in to beach and
south reefs, charging on generators only.
1830
Small banka alongside with Capt. HAMNER. We were very
disappointed to learn that only two small boats were
available to unload cargo. Inflated 4 rubber boats to
assist. Received 8 passengers.
1945
All boats left ship to unload and return. Estimated
two more trips necessary. Broke open carbine cases so
that individual guns could be handled more easily.
2300
Sighted unidentified vessel nearly dead ahead, coming
south along coast. Radar range 3500 yards. Contact No.
14. Cleared people off topside, closed loading hatches,
ready on engines, started to swing to open out from
TAWITAWI, 1900 yards away.
2308
Sighted another vessel in company with contact above.
Contact No. 15. They look like DD's. Range 5000 yards.
Sighted a third vessel to northward, radar range 12,000
yards, Also on southwest course, parallel to beach.
Contact No. 16. Going ahead full on engines, still
charging on generators and smoking like the Inchcliffe
Castle. Returned part of deck load to engine room until
water coming through engine room hatch prevented further
salvage.
2320
Nearest vessel now 3100 yards in brilliant moonlight,

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— page 194 —
REFER TO NO.
$8167/
DECLASSIFIED
U. S. S. NARWHAL (SS 167)
(B) NARRATIVE (Cont.):
2320
turned broadside to us and opened fire. His full
silhouette identified him as a single stack DD.
Dived, going deep. Rigged for depth charge and silent
running. Found we have two unauthorized passengers
aboard who were waiting for return of boats. Two of
the boats were in sight, standing toward us when we
moved out. Moonset at 0335.

6 March
0020
Started up to periscope depth.
0104
Echo ranging, astern, 4 distant depth charges. Started
deep again.
0115
Fast screws astern, pinging right on us. Also echo
ranging on 2900 relative, closer. Began swinging to
keep closer contact astern.
0230
Seemed to have shaken them off. Started back to
periscope depth.
0408
Four distant charges, started back down. Executive
Officer suggested noise may have been slamming of door
between bridge and forward machine gun platform. Started
back up.
0425
Three charges, or door?
0427
Five charges, or door? Decided it was the door, and at
0429
Surfaced. Heading north away from TAWITAWI pouring in
the amps. Chose this direction as most likely to be
free of contacts. Jettisoned balance of cargo remaining
on deck. We have about 6 tons of undelivered cargo
below decks. Did not return to TAWITAWI to return two
men because of low gravity. SUAREZ control very sketchy.
This spot now completely compromised with floating bits
of cargo all along the coast and extreme likelihood of
Jap patrols locating the landing point.
1000
Completed charge in SULU SEA.
2300
Entered SIBUTU PASSAGE.

7 March
0030
Completed transit. Uneventful day in CELEBES SEA.

8 March
1204
SD contact 8 miles, closed to 5, dived. Contact No. 7.
1216
At radar depth, two contacts 11 miles, went back to
68 feet. Contact No. 8.
1228
Surfaced.
2008
Completed transmission NARWHAL THREE.

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— page 195 —
K
DA
REFER TO NO.
SS167/
DECLASSIFIED
U.S. S. NARWHAL (SS 167)
(B) NARRATIVE (Cont.):

9 March
1249 SD contact ll miles, closing. Contact No. 9.
1250 Dived. Contact closed to 6 miles on way down.
1254 At periscope depth sighted one [UNCLEAR: ZELL] on southerly course.
On second sweep, he had joined three others and all
were in formation, disappeared on westerly course.
Contact No. 10.
1309 Surfaced.
1359 SD contact 9½ miles. Contact No. 11.
1400 Dived, closed to 6 miles on way down.
1404 At periscope depth, sighted one ZEKE on easterly course.
Disappeared in direction of AMBON. Contact No. 12.
1423 Surfaced.

10 March
1413 Passed through MALAY BARRIER, into ARAFURA SEA.

11 March
0920 Joined escort ML-815.
1110 Disembarked 38 passengers to Royal Australian tug
"CHINAMPA".
1313 Moored to boom jetty, FORT DARWIN, AUSTRALIA. Began
unloading balance of cargo, fueling and shifting deck
loaded torpedoes to forward room. This latter job very
tedious due to lack of all handling gear. Obtained 4
guide studs from MTB #10.

12 March
0651 Underway from boom jetty.
0908 Dived for trim.
0932 Surfaced.

13-15 March
Uneventful, proceeding to EXMOUTH GULF.

16 March
1241 Moored to fuel barge at EXMOUTH GULF.

17 March
0110 Completed delivery 67,648 gallons to barge.
0510 Underway.
0913 Dived for trim.

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16a
σ

— page 196 —
REFER TO NO.
SS167/
U. S. S. NARWHAL (SS 167)
(B) NARRATIVE (Cont.):
0931 H Surfaced.
18 March
Uneventful, enroute FREMANTLE.
19 March
0840
Sighted SS on opposite course. Believe J.3.3.
HAKE. Too distant to exchange recognition signals,
20 March
1025
Moored at FREMANTLE, WESTERN AUSTRALIA.

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— page 197 —
REFER TO NO.
SS167/
(C) WEATHER:
U. S. S. NARWHAL (SS 167)
#10
Normal for this time of year. Weather was cloudy from
CELEBES SEA south. Perhaps caused by the tropical disturbance
off WESTERN AUSTRALIA.
(D) TIDAL INFORMATION:
Currents:
West coast of BURU ISLANDS: Normally sets south
parallel to the coast. Experienced a 2 knot set to the west-
ward on northerly course. Some of this apparent current is
believed to be caused by the poor charting of the high peaks
of the island.
MOLUKKA PASSAGE: Set northerly instead of south as
prescribed during northeast monsoon. This was only experienced
during northbound passage.
TAWITAWI: Close along the reef the current roughly
parallels the reef. On south side the current flows to the
east with the ebb, to the west with the flood, ebb currents
predominating. On the north side the ebb current sets westerly.
No flood was encountered north of TAWITAWI.
SIBUTU PASSAGE: Near the center of the channel on the
north passage little current was encountered, but close to
SIBUTU ISLAND on the south passage 4 knots southerly current
was found (0000, 7 March 1944).
MINDORO ISLAND: West of MINDORO ISLAND, the prevailing
current sets north along the coast at about half a knot.
MINDANAO SEA: The prevailing current sets westerly
during the northeast monsoon at times as much as 2 knots being
encountered.
A strong current (4 knots) setting
northeast was encountered off CAPE FOUROROY on 16 February 1944.
BAUT ISLAND:
(E) NAVIGATIONAL AIDS:
No lights burning though several light houses were
sighted during daylight.
(F) SHIP CONTACTS:
:Time :Lat. : : Initial:Est. Course How :
No.: Date : Long. :Type(s): Range : Speed :Contact: Remarks
: : : : : : :
1 :0540 H: 3-54 S: AK :14,000 : 100 : P :Similar KASAGISA
:18 Feb.: 126-20 E: : yds.: 12 : :MARU, 2427 tons.
2 :0608 H: 3-53 S: DD :12,000 : 100 : P :CHIDORI
:18 Feb.:126-21 E: : yds.: 13 : :
3 :0241 H: 2-51 N: -- : 2400 - : R :Small pip.
:21 Feb.:121-25 E: : yds. : : :Apparently sam-
: : : : : : :pan, avoided.

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— page 198 —
REFER TO NO.
SS167/

U.S. S. NARWHAL (SS 167)

(F) SHIP CONTACTS (Cont.):
:Time
No.: Date
:Lat.
:Long.
:Type(s):Range
Est.
:Initial: Course : How con-
: Speed :tacted : Remarks
:
:
:
:
:
:
:
4 :0640 H: 3-18 N: AK :12 mi.: 135 : S(D) :Similar HAVANA
:21 Feb.: 121-33 E: : :7-12.5: : MARU
5 :0132 H : 4-51 N: SS :6700 : 175 : R :Believe ROBALO.
:24 Feb.: 119-39 E: : yds. :18 kts.: :
6 :0800 H: 13-23 N: Launch :4 mi. : - : P : Anchored or
:26 Feb.:120-24 E: (3) : : : :beached.
7 :0932 H: 13-21 N: AK :5000 : East : P : Small cargo sampan,
:26 Feb.: 120-22 E: : yds. :8 kts.: :60 tons.
8 :0650 H: 13-19 N: AK :6000 : West : P :"Sea Truck"
:27 Feb.: 120-25 E: : yds. :8 kts. : :800 tons.
9 :0650 H: 13-19 N:Sampan :6000 : West : P : Escorting
:27 Feb.:120-25 E: : yds. :8 kts. : :contact 8.
10 :1045 H: 13-18 N: Launch :6 mi. : East : P :
:27 Feb.:120-24 E: : : :7 kts. : :
11 :0755 H: 13-23 N: Sampan :3000 : East : P : He made colors at
:28 Feb.:120-24 E: : yds. :6 kts. : :0800. Photographed
: : : : : : :him from 1000
: : : : : : :yards.
12 :1723 H: 8-53 N: AP :8 mi. : S.E. : S(D) : See attack No. 1.
:3 Mar. :123-26 E: : : :8 kts. : : KEIHUKU MARU
: : : : : : :3600 tons.
13 :1836 H: 8-52 N: PG :2000 : 200 : P : Escorting gunboat,
:3 Mar. :123-23 E: : yds. :10 kts.: :probably making
: : : : : : :rendezvous with
: : : : : : :contact No. 12.
14 :2300 H: 5-18 N: DD :8500 : S.E. : S(N) : Single stack,
:5 Mar. :120-05 E: : yds. :8 kts. : :opened fire at
: : : : : : :3100 yards.
15 :2308 H: 5-18 N: DD :8200 : S.E. : S(N) : Had echo ranging
:5 Mar. :120-05 E: : yds. :8 kts. : :equipment.
16 :2308 H: 5-18 N: Unknown:12,000 : S.E. : S(N) :
:5 Mar. :120-05 E: : yds. :8 kts. : :

(G) AIRCRAFT CONTACTS:
Est.
:Time
Nos: Date
:Lat.
: Long.
:Type(s): Range
:Initial: Course : How con-
: Alt. :tacted : Remarks
:
:
:
:
:
:
:
1 :1222 H: 6-54 S:Light :3 mi. : North : S(D) : Observed while
:17 Feb.:127-40 E:bomber : : 500' : :submerged. Be-
: : : : : : :lieve Navy
: : : : : : :Douglas BD.

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-1901

— page 200 —
REFER TO NO.
SS167/

U.S.S. NARWHAL (SS 167)

(H) ATTACK DATA (Cont.):

Ship(s) sunk None.
Ship(s) damaged or One AP, 3620 tons.
Probably sunk
Damage Determined Saw one hit on port bow, when smoke cleared
by away, bow was gone back to the bridge. Sound
heard breaking up noises associated with sink-
ing ship, probably the bow section sinking.
Target Draft - 12 ft. Course - 188° Speed - 8.5 Range - 1275 (at
firing).

OWN SHIP DATA
Speed - Course - 240° Depth - 68 ft. Angle - 0° (at firing).

FIRE CONTROL AND TORPEDO DATA
Type Attack Normal submerged approach. Obtained single
ping echo range during last stage of approach.
Zig away caused large track.
Tubes Fired #1 | #2 | #3 | #4
Track Angle 141R | 143R | 145R | 148R
Gyro Angle 349.5 | 343.5 | 347.5 | 339.5
Depth Set 6' | 6' | 6' | 6'
Power H.P. | H.P. | H.P. | H.P.
Hit or Miss Miss | Hit | Miss | Miss
Erratic No | No | No | No
Mark Torpedo 14-3A | 14-3A | 14-3A | 14-3A
Serial No. 25935 | 26001 | 23932 | 24403
Mark Exploder 6-5 | 6-5 | 6-5 | 6-5
Serial No. 6176 | 6500 | 12504 | 12521
Actuation Set Contact | Contact | Contact | Contact
only | only | only | only
Actuation Actual None | Contact | None | None
Mark Warhead 16-1 | 16-1 | 16 | 16
Serial No. 11859 | 11287 | 11585 | 3903
Explosive TTX | TTX | TTX | TTX
Firing Interval 0s | 12s | 12s | 16s
Type Spread Divergent - (2R, 2L, 4R, 4L).
Sea Conditions Calm
Overhaul Activity U.S.S. PELLIAS.
Remarks Spread used was too large for track angle
at firing, accounts for miss of #4.

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26/

— page 201 —
REFER TO NO.
SS167/

(I) MINES:
U. S. S. NARWHAL (SS 167)

None.

(J) ANTI-SUBMARINE MEASURES AND EVASION TACTICS:

Following attack of 3 March, a patrol craft made one
excellent run on NARWHAL. He had not been with the vessel
attacked during the approach, but arrived after our attack.
Perhaps his late arrival accounted for the slow speed of the
vessel attacked.

The crippled AP opened fire from a stern mounted gun,
about 5", in our general direction. On a sweep around I dis-
covered another vessel, showing a dim light, and signalling in
the direction of the AP. He was headed directly toward the AP
and I assumed he was going to his assistance, believing we were
undetected. However, as he neared our track he turned directly
toward the periscope and presented a zero angle on the bow. I
considered his draft too shallow to warrant a shot, turned away
and headed deep. He must have detected the change in course as
he passed overhead between his 2nd and 3rd charges. His No. 2
was a well placed shot, lacking only sufficient depth. He used
no echo ranging device. Evasive tactics consisted in keeping
the stern as much as possible pointed in his direction and still
head westward out of the LINDANAO BAR.

The two destroyers who searched for us on 5 March seemed
unable to maintain their sound contacts. Several times their
pinging was directly on us, their screws would speed up and we
would all get set for a close one which never materialized. All
keying was automatic.

(K) MAJOR DAFLOTS AND DINGE:

1. The liquidometers continue to be one of our biggest
headaches! Kew liquidometers are to be installed during current
refit.

2. While returning to DARWIN, lube oil failure to #1
turbo blow caused the forward bearing to be wiped. As no spares
were on board, this turbo was out of commission for the remainder
of the trip. Both the bearing shell and journal were unharmed and
it will orly be necessary to re-babbit the wiped bearing.

3. The main engine mufflers are unsatisfactory as
reported on last patrol. It is apparent that mufflers for
Winton 248 engines cannot be used for 278- engines. The higher
operating temperatures and higher back pressures has resulted

- 15 -

220
7

— page 202 —
REFER TO ΝΟ.
SS167/

U. S. S. NARWHAL (SS 167)

(K) MAJOR DEFECTS AND DAMAGE (Cont.):
in a reduction in overall power, flaky exhaust valves,
destruction of outboard exhaust piping, and the burning off
of paint on superstructure covering the outboard exhaust
system, coupled with continuous smoky exhaust.

4. The starboard shaft has developed a loud noise
and vibration that is very discomforting, especially during
evasion tactics.

5. The Mark VII Arma Gyro Compass follow-up system
is very erratic. This system needs a complete overhaul. During
the last two patrols, compass failures have averaged one every
forty-eight hours.

6. The starboard transmitter gearing for the shaft
revolution indicator system is excessively noisy. This defect
is not noticeable until ship is rigged for silent running.

7. The low specific gravity of the battery, with its
resultant overcharging of the battery, high temperature and
abnormal use of water is still a constant source of worry. This
defect is to be corrected during the coming refit of this vessel.

(L) RADIO:

All message serials were received on the Baker schedules.
Daylight reception in the area was impossible while night reception
was difficult and some messages had to be copied 2 or 3 times and
pieced together. Starting approximately 25 Iebruary, strong
interference was encountered on 9250 KCs. It is believed to have
come from an enemy network in the vicinity with the control station
transmitting to the group call GB1. The 4000 and 12000 bands were
also useless due to C.W. interference. It appeared that this was
not deliberate jamming but coming from a low powered network,
possibly located on LUZON. Interference grew weaker further south
and after clearing the area only slight interfererec tas noted.

After VIXY changed transmitters and antennaes, no change
in signal strength was noted.

No success was had in two attempts to work VIX on the
12000 and 8000 bands, but on each occasion communication was
immediately established with an AUSTRALIAN station after shifting
to 4235 KOS.
On the third transmission, communication was
immediately established with VHC. Due to a large number of
repeats requested, forty-five minutes were used for sending a
message that should have taken twenty minutes at the most. More
mistakes were again found when the message was retransmitted to
VIX.

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— page 203 —
REFER TO NO.
SS167/

U. S. S. NARWHAL (SS 167)

(M) RADAR:
Due to the diligent effort of the radar technician
the performance of both radars was excellent. The SJ in several
instances registered land at ranges of 70,000 yards. The SD was
consistantly reliable. On one occasion it.picked up 4 single
engine fighters at 11 miles and later one such aircraft at 9½ miles.

(N) SOUND:
The CH-JK-4 keel mounted sound head training motor
generator has an open coil and needs rewinding. The head was
trained by hand power since very early in this patrol.

There is too much play between the keel projector shaft
and its steady bearing, causing noise in training while the boat
is moving at high speed submerged and when the boat is trimmed
to an angle. This fault should be corrected during our next dry
docking.

Listening conditions in the area were good. To sound's
one echo range is due considerable credit for successfully damaging
the target on 3 March. Sound aided considerably in evading the
escort on 3 March and again in evading on 5 March.

(0) DENSITY LAYERS:
On both occasions of deep submergence, 4 degree negative
gradients were experienced at 200 feet which proved most helpful
in our evasive tactics.

In two instances difficulty was encountered in diving
below periscope depth during trim dives. Here in each case a
2-3 degree negative gradient vas found at 65 feet.

(P) HEALTH, FOOD, AND HABITABILITY:
There were no sick days. The following complaints, among
many lesser ones, are noted:

Complaint | Crew | Passengers
Colds | 20 | 10
Sinus trouble | 4 1* | -
Conjunctivitis | 4 | -
Frostatitis | 1 | -
Urethritis | 2 | -
Catarral Fever | 1 | -
Vincent's Angina | 1 | -

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240
J

— page 204 —
REFER TO NO.
SS167/

U. S. S. NARWHAL (SS 167)

(P) HEALTH, FOOD, AND HABITABILITY (Cont.):

| Complaint | Crew | Passengers |
|---|---|---|
| Cellulitis | 3 | - |
| Arthritis | 1 | 1* |
| Otitis Media | 1 | 1* |
| Malaria | - | 1 |
| Dysentary | - | 6 |
| Sores and skin ulcers | - | 2 |
|  |  | 8 |

* Number still under treatment.

The entire crew needs dental work.

Habitability suffered somewhat due to crowded conditions
arising from cargo and number of passengers carried.

The food was in general poor, being characterized by
extremely tough meat and an excessive amount of rice. The
lack of fresh frozen fruits and vegetables was keenly felt.

(Q) PERSONNEL:

As in past patrols, all hands worked at shifting and
unloading the cargo in a very creditable manner. The First
Lieutenant, Lieutenant (jg) RHORBACK, is deserving of special
credit for the efficiency of unloading which was unduly complicated
by having cargo buried beneath items intended for earlier stors.
RHORBACK also salvaged considerable cargo which was on deck at
the time of our contact with two destroyers off TAWITAWI.

During depth charging all hands conducted themselves
in the best traditions of the naval service.

(R) MILES STEAMED - FUEL USED:

DARWIN TO BARRIER
292 mi.
5,770 gals.
In area
5041 mi.
81,400 gals.
BARRIER to FREMANTLE
2313 mi.
56,500 gals.

(S) DURATION:

Days enroute Area
1
Days in Area
23
Days enroute to FREMANTLE
8
Days submerged
7

- 18 -

250

— page 205 —
REFER TO NO.
167/
U.S. S. NARWHAL (SS 167)
(T) FACTORS OF ENDURANCE REINING:
| Torpedoes | Fuel | Provisions | Fersonnel Factor |
|---|---|---|---|
| 6 | 10,000 gallons | 2. days | 10 days |

Limiting factor this patrol: Provisions of Operation Order.
(U) RMARKS:

The security of the selected landing at LANTABUAN ISLAND
is very questionable. After discussion with service personnel
evacuated from TAWITAMI, it appears that our proposed rendezvous
off an "uninhabited" island was well known to the pro-Jap villages
therein. This lack of security needlessly endangers the ship. It
may account for the surprise encounter with the destroyers at the
*later elected spot.

Cargo should be loaded aboard destined for not more than
two spots。 This type of loading can be more easily accomplished,
provided the cargo is similar in nature and to be equally divided.
Cur most successful unloading to date has been that off NEGROS,
to Col. ABCEDE. His organization had an adequate supply of small
boats, so that unloading could be accomplished from both ends of
the ship and on both sides at the sare tine.

ince the installation of inton engines, the lube oil
capacity of the ship has been greater than the fuel radius
required. It is suggested that a portion of the lube oil tanks
be blanked off and connected to the trim line to be used as
"cargo compensating tanks". The blank fittings should be so
designed that lube oil could be carried, as cargo, if desired.

By the time NARWHAL's refit is completed, she will have
completed one year of service since modernization. During this
period, WARWAL has cruised from the Eastern Facific to the
CKMOTECK SEA; from the BERING SEA to the INDIAN COLN, covering
over 85,000 miles. Credit for this excellent engineering perfo
ance is due the Engineer Officer, Lieutenant J. E. PLUMMER, USN.

- 19 -

260
σ

— page 206 —
FE24-71/A16-3
Serial 00/29
3698.
UNITED STATES NAVY
11/bt
17 APR 1944
FIRST ENDORSEMENT to:
USS NARWHAL Secret Ltr.
SS167 of 20 March, 1944.
Report of Tenth War
Patrol.
From:
To
Via:
:
Commander Task Force SEVENTY-ONE.
Commander in Chief, UNITED STATES FLEET.
Commander SEVENTH FLEET.
Subject:
U.S.S. NARWHAL Report of Tenth War Patrol
Comment on.
-
1.
The Tenth War Patrol of the NARWHAL covering a
period of thirty-two days was conducted performing special missions
in the PHILIPPINE ISLANDS Area. The NARWHAL successfully completed
one phase of assigned missions and was prevented from completing
another phase due to not receiving the pre-arranged Security signal.
The last phase was thwarted due to the enemy being forewarned and
failure of the Beach party to furnish an adequate number of boats
to expeditiously take away the cargo.
2.
The Commanding Officer's courage, judgment, and
resourcefulness, and the complete preparedness on the part of all
hands, unquestionably made possible the accomplishment of so much
of the missions assigned as were actually accomplished and the ex-
tricating of the NARWHAL from an extremely vulnerable position
when detected by the enemy.
3.
The difficulties experienced by the NARWHAL on
this patrol indicate that the enemy is intensifying his efforts to
defeat missions of this nature. In the light of this the following
is recommended for future missions of a similar nature:
(a) If Security signal or contact with friendly forces
ashore is not made during the first period of reconnais-
sance, no later attempt should be made during that patrol
to establish contact and effect the mission.

- 1 -
5 1158
[HANDWRITTEN: ba]
[HANDWRITTEN: 0]

— page 207 —
FE24-71/A16-3
Serial 00129
UNITED STATES NAVY
11/bt
17 APR 1944
FIRST ENDORSEMENT to:
USS NARWHAL Secret Ltr.
SS167 of 20 March, 1944.
Report of Tenth War Patrol.
Subject:
U.S.S. NARWHAL Report of Tenth War Patrol -
Comment on.
(b) Only two spots for effecting Special Missions be assigned
on each patrol and these not be revisited at less than
six months intervals.
(c) Sufficient boats be made available at each spot to take
off all assigned cargo in one trip and thus greatly
reduce the time the submarine is most vulnerable to enemy
action.
(d) All available intelligence on the spots assigned be made
available to the Commanding Officer prior to departure
and thus enable him to more intelligently estimate the
situation and be forewarned of possible hazards.
4.
The suggestion that a portion of the present excess
lubricating oil tank be converted to "cargo compensating tanks"
is noted. This alteration would greatly facilitate compensation
and is recommended for accomplishment.
5.
This patrol is designated as successful for
purposes of award of the Submarine Combat Insignia.
6.
The Force Commander congratulates the Commanding
Officer, Officers, and Crew on the successful completion of a
special mission under extremely hazardous conditions and for in-
flicting the following damage on the enemy:

- 2 -

5a

— page 208 —
FE24-71/A16-3
Serial: 00129
UNITED STATES NAVY
11/bt
17 APR 1944

FIRST ENDORSEMENT to:
USS NARWHAL Secret Ltr.
SS167 of 20 March, 1944.
Report of Tenth War Patrol.
Subject:
U.S.S. NARWHAL Report of Tenth War Patrol -
Comment on.
DAMAGED
1 - AP (KEIHURU MARU TYPE) - - - 3,620 Tons.

[SIGNATURE: H. H. MCLEAN.]
H. H. MCLEAN.

Copy to:
Vice CNO (1)
Com7thFlt (1)
ComSubsPacFlt(1)
File

[STAMP: CLASSIFICATION THIS CORRESPONDENCE]
[HANDWRITTEN: CHANGED TO Confidential]
[HANDWRITTEN: AUTHORITY. O.P. 63D2]
[HANDWRITTEN: DATE. 4/19/73]

5 1158

4a.

— page 209 —
A16-3(F-2/rd).
00941.
Serial:
UNITED STATES FLEET
COMMANDER SEVENTH FLEET

SECOND ENDORSEMENT to
CO USS NARWHAL Secret
Letter of 20 Mar. 1944.
MAY 11 1944
From:
To :
Subject:
1.
2.
The Commander Seventh Fleet.
The Commander in Chief, United States Fleet.
U.S.S. NARWHAL Report of Tenth War Patrol -
Comment on.
Forwarded.
The Commander Seventh Fleet does not agree
in all respects with the recommendations contained in sub-
paragraphs 3 (a), 3 (b) and 3 (c) of the first endorsement.
Specifically:
(a) Abandonment of efforts to contact friendly
forces ashore due to the absence of recognition
signals during first reconnaissance does not
appear to be justified, and this course, if
adopted, will greatly hamper the carrying out
of these support missions. A variety of reasons
not necessarily connected with enemy occupation
of or imminent threat to the pre-arranged contact
point may account for a lack of recognition
signals on the pre-arranged date. It must be
appreciated that irregular troops operating in
country wherein the enemy exercises a measure of
control cannot always arrive on time and make the
necessary arrangements at a pre-determined rendezvous.
Furthermore, enemy operations may at any time
temporarily render a rendezvous untenable which at
other times will be perfectly safe. Such enemy
operations cannot always be predicted nor, when
known, can it always be assured that the informa-
tion can be transmitted to and definitely
received by a submarine at sea. It is a realization
of these conditions that dictates the necessity
for recognition signals from the shore. If a
submarine could be sailed for a given port in the
Philippines with definite assurance that the port
of destination would be perfectly secure on the
date of her arrival, no shore recognition signals
would be required.

5 1158
[HANDWRITTEN: 3e]

— page 210 —
A16-3(F-2/rd)
Serial: 00941
UNITED STATES FLEET
COMMANDER SEVENTH FLEET
SECOND ENDORSEMENT to
CO USS NARWHAL Secret
Letter of 20 Mar. 1944.
Subject:
MAY 11 1944
U.S.S. NARWHAL Report of Tenth War Patrol -
Comment on.

— page 211 —
A16-3(F-2/rd)
Serial: 00041
UNITED STATES FLEET
COMMANDER SEVENTH FLEET

SECOND ENDORSEMENT to
CO USS NARWHAL Secret
Letter of 20 Mar. 1944.
Subject:
A.S.
Reg. No. Om 3828
File No. 5 1158
MAY 11 1944
U.S.S. NARWHAL Report of Tenth War Patrol -
Comment on.

4. In keeping with the uniformly excellent past
performance of the U.S.S. NARWHAL, her tenth war patrol was
conducted with courage, admirable judgment, coupled with quick
correct action, and a high state of preparedness for any
eventuality indicative of excellent crew spirit and
organization. The Captain, officers and crew of the U.S.S.
NARWHAL are to be congratulated on an outstanding performance
of duty.

[SIGNATURE: T.C. Kinkaid]
T. C. KINKAID

Copy to:
CTF-71

COMMANDER-IN-CHIEF
FLAG OFFICE
RECEIVED
1944 MAY 21 9 35

— page 212 —
I reply refer to Init
and No.

NAVY DEPARTMENT
OFFICE OF THE CHIEF OF NAVAL OPERATIONS
WASHINGTON 25, D. C.

18 March 1946

REASSESSMENT OF DAMAGE BY SUBMARINES

Reference: (a) ComSubPac ltr. FF12-10/Lll(1) of
21 February 1946.
[HANDWRITTEN: 10th]
USS NARWHAL (SS167) 10th War Patrol
Date of Attack: 3 March 1944

Target was believed to be an AP and was
attacked with four torpedoes for one hit which blew
off her bow. Narwhal was credited with damage only
for this attack. DNI list JI shows that the river
gunboat KARATSU (PR12-560 tons) was sunk by NARWHAL
at this time. Similarity in silhouette caused mis-
take in identification. Commanding Officer, Comdr.
F. D. Latta, U.S. Navy.

Copy to:
ComSubsLant
SubSchool New London
CO SS-167
Op-23E
Op-41403

[STAMP: FOR VICTORY
BUY
UNITED
STATES
WAR
BONDS
AND
STAMPS]

— page 213 —
U.S.S. NARWHAL
1St Capy

DECLASSIFIED

From:
To :
Via :

Subject:
Enclosures:

1.
DEN
- NAN NOT 5510 10
BY 910 DATE 2-29-60
Care of Fleet Post Office,
San Francisco, California,
9 June 1944.
The Commanding Officer.
The Commander in Chief, United States Fleet.
(1) The Commander Task Force SEVENTY-ONE,
(2) The Commander SEVENTH FLEET.
U.S.S. NARWHAL, Report of War Patrol Number ELEVEN.
(A) Subject Report.
(B) Track Chart (ComTaskFor 71 only).
(C) Intelligence Report.
Enclosure (A), covering the ELEVENTH War Patrol
of this vessel conducted in the PHILIPPINE ISLANDS during the
period 7 May 1944, to 9 June 1944, is forwarded herewith.

[SIGNATURE: J. C. Titus]
J. C. TITUS.

8 1769

— page 214 —
U.S.S. NARWHAL

(A) PROLOGUE:
Completed TENTH War Patrol at FREMANTLE, WESTERN
AUSTRALIA, on 20 March 1944. Refit undertaken by U.S.S. ORION
and Submarine Division 121 Relief Crew, while regular crew went
to rest camps. 26 March 1944, Commander F. D. LATTA, U.S. Navy,
relieved as Commanding Officer by Lieutenant Commander J. C.
TITUS, U.S. Navy.
Work accomplished:
(a) Installation of new liquidometers (Controlling job).
(b) Overhaul of 4 main and 2 auxiliary engines.
(c) Completely overhauled master gyro follow-up system.
Changed master gyro sensitive element.
(d) Moved auxiliary gyro to enable helmsman to see it.
(e) Moved tank compass to prevent locking in magnetic
field of motor and engine order telegraphs.
(f) Docked to work on starboard shaft and clean bottom.
(g) Renewed non-return valve in hydraulic system, over-
hauled system and eliminated as many leaks as possible.
Unsatisfactory.
(h) Ground in valves and eliminated air leaks. A new
high pressure air manifold will be required next refit
and has been ordered.
(i) Installed proper size main engine mufflers.
(j) Removed excessive clearance in 20 shaft and overhauled
training gears. Has proven unsatisfactory.
(k) Removed bearings for turbo-blower. This was a
difficult job well done by the tender. [HANDWRITTEN: 8 1769]
(1) Converted No. 1 and 2 lubricating oil tanks to carry
either oil or ballast.
(m) Overhauled steering system removing lost motion and
quieting system as much as possible.
(n) Installed Conning Tower bilge suction.
(o) Quieted bow and stern plane operating gear as much
as possible.
(p) Renewed head on SD radar mast.
(q) Removed and repacked No. 3 periscope.
(r) Plus the normal refit items.
(s) Gravity of the main storage batteries was not rai sed
due to lack of suitable acid.
On 2 April 1944, the regular crew returned from the rest
camps and completed the refit. The refit is considered good because
proper engine parts were available.
Three officers in addition to Commander F. D. LATTA, U.S.
Navy, were detached and four reported on board for duty. 32 enlisted
men were detached and replacements reported on board. Full advantage

- 1 -

— page 215 —
U.S.S. NARWHAL

(A) PROLOGUE (Continued,
of the schools maintained by Commander Task Group 71.3 was taken.
12 days training were granted due to large turn over in personnel.
Of this time two days were spent in independent operations during
which time a sound test was conducted, a leak test at test depth
was made, and the crew trained in diving and handling emergencies.
During the remainder of the training period a target was available
daily for submerged and surface approaches as well as evasive
tactics. All guns were fired and one exercise torpedo was fired.
Two other exercise torpedoes were not fired due to tube casualties
which were rectified. 2 days training were lost due to emergency
repairs.

5 days were spent alongside tender loading and making
emergency repairs to H.P. air compressor, hydraulic plant, steering
system, gyro compass system, liquidometers, and SD radar.

(B) NARRATIVE: (All times How)
7 May
1425
Underway for exercise areas. Conducted submerged day and
night approaches with U.S.S. BLUEFISH and escort, U.S.S.
ISABEL.
1945
2150
U.S.S. BLUEFISH departed.
Released escort and stood up bombing restriction lane.

8-14 May
Enroute PORT DARWIN, NORTHERN TERRITORY, AUSTRALIA.
Making daily training dives, holding drills, surface and
submerged. Standard zig-zag plan during daylight for
training helmsmen and A/S measures.

8 May
0200-
0600
Radar interference, assumed to be U.S.S. JACK. Avoided
to eastward - did not contact. Lat. 30-42 S., Long.
114-20 E.
1350
2337
Sighted PBY on easterly course, crossed ahead well clear
and continued on course toward coast. Aircraft contact No. 1.
Radar interference bearing 340°T. Lat. 27-00 S., Long.
112-35 E. After numerous bearings ahead finally lost all
interference. Believed to be U.S.S. BLUEFISH.

9 May
1055
Sighted friendly submarine and exchanged calls with HNMS
K-15 on southerly course. Ship contact No. 1.

- 2 -

8 1769
0

— page 216 —
DECLASSIFIED
U.S.S. NARWHAL
(B) NARRATIVE (Continued):
1737
Sighted friendly submarine and exchanged calls with
U.S.S. PADDLE on southerly course. Ship contact No. 2.
10 May
0033
Sighted vessel bearing 300°T. after much radar inter-
ference all night. Recognized as friendly submarine.
Ship contact No. 3.
0055
0835
Exchanged calls with U.S.S. BLUEFISH on easterly course.
Sighted friendly PBY bearing 0800T., distance 10 miles and
exchanged recognition signals. Aircraft contact No. 2.
1000
Fired 20mm guns at balloon on surface.
1950
Fired 5 rounds of 6" from each gun for training in night
firing.
11 May
1705
Lookout reported periscope but later questioning brought
out estimated diameter of 8 inches. Made wide detour just
in case. Lat. 16-41 S., Long. 117-45 E.
14 May
0854
Radar contact on plane, distance 3 miles, closing. Re-
leased flare and submerged. Did not sight but believed
friendly. Aircraft contact No. 3.
0920
Surfaced. All clear.
1057
1350
Sighted CAPE FOURCROY bearing 0550T., distance 25 miles.
Sighted escort, ML-815, and exchanged calls. Lat. 12-155 S.,
Long. 130-34 E. Proceeding to PORT DARWIN. Sighted
numerous friendly planes.
1517
1533
1725
King's Harbor Master HARBURY came aboard as pilot.
Passed between degaussing buoys.
Moored to Boom Jetty, PORT DARWIN. One mooring line
fouled propeller in darkness. Cleared by diver, no damage.
Put two additional turns of packing in No. 3 periscope
which has been leaking badly. Tender repacked with too
small packing. Checked all torpedo tubes and overhauled
poppets on Nos. 5 and 7. Routined torpedoes in deck tubes.
Greased ship. Replaced flooded telescope on No. 2 gun and
boresighted both guns. Unloaded 200 rounds of powder, and
some excess provisions to be held for next trip. No
storage facilities for excess lubricating oil. Took on
fuel, 36,360 gallons, and fresh water. Loaded 62 tons of
cargo and received 38 passengers, 7 officers and 31 enlisted
men of the A.U.S. U.S. Section Base repaired leaking hot
water heater and were most helpful in loading.

- 3 -

— page 217 —
U.S.S. NARWHAL
(B) NARRATIVE (Continued):
15 May
0515 Lieut. MacARTHUR, RAN., came on board as pilot.
0545 Underway from Boom Jetty, PORT DARWIN.
0620 Pilot left ship.
0910 Made trim dive.
0957 Surfaced. Set course 291°T., speed 14 knots to pass 30
miles west of CAPE FOURCROY and commenced constant helm
zig-zag 40° either side of base course.
1200 Position Lat. 11-57 S., Long. 129-51 E.

16 May
0930 Sighted tower on northeast corner of SERMATA ISLAND
having appearance of radar tower. Estimated position of
tower Lat. 8-13 S., Long. 129-01 E.
1030 Passed SERMATA ISLAND bearing to port, distance 10 miles,
and passed through MALAY BARRIER.
1200 Position Lat. 6-55 S., Long. 127-50 E. Ship is leaving oil
slick believed to be caused by smoking engine exhaust.

17 May
0445 Brief radar interference bearing 315°T. Perhaps U.S.S.
CREVALLE. Lat. 5-44 S., Long. 126-49 E.
0514 During morning trim dive went deep for density layers.
Found sharp 2° negative gradient between 280 and 300 feet.
Heard loud crack at 290 feet, believed to be conning tower
shifting in relation to rest of hull. Lat. 5-35 S.,
Long. 126-44 E.
0641 Surfaced.
1200 Position Lat. 4-26 S., Long. 126-01 E.
1310 Stern lookout sighted plane on starboard quarter, distance
estimated at 5 miles, believe plane was small bomber. Made
quick dive. Aircraft contact No. 4.
1346 All clear, surfaced.
1545 Radar contact 13 miles. Closed to 9 miles, and at
1548 Submerged. Closed to 7 miles before securing SD and a
second contact reported at 20 miles. Aircraft contact No. 5.
1615 All clear, surfaced.
2047 Sighted small schooner or large sailboat with sails down,
bearing 010°T., distance 2000 yards. Avoided. Ship
contact No. 4.

18 May
0630 Radar contact 14 miles, closed to 10 miles, and at
0631 Submerged. Plane not sighted. Aircraft contact No. 6.

- 4 -

— page 218 —
DECLASSIFIER
UNITED STATES NAVY
U.S.S. NARWHAL
(B) NARRATIVE (Continued):
0718 All clear, surfaced.
1140 Crossed equator.
[CONFIDENTIAL]
1200 Position Lat. 0-04 N., Long. 126-38 E.
1252 Radar contact 10 miles, closing to 9, submerged. Aircraft
contact No. 7.
1335 Surfaced.
1338 Radar contact 10 miles, closing. Looks like homing on
our SD. Aircraft contact No. 8.
1452 Rain coming - decided to wait for it.
1550 Surfaced in heavy rain squall without using SD. No gripes
about weather.
Decided to spend one day submerged patrol in the vicinity
of the focal point east of TALUAD ISLANDS and one in the
vicinity of the point northeast of TALUAD ISLANDS.

19 May
0506
Overcast, no stars.
Sighted KABOEROEANG ISLAND, distance about 20 miles to
the west and submerged.
1200 Position Lat. 3-45 N., Long. 127-35 E.
1804 Surfaced. QC sound head inoperative due to binding of
shaft in train.

20 May
0511
Overcast, no stars.
Submerged.
1200 Position Lat. 6-25 N., Long. 127-55 E.
1812 Surfaced. Decoded CTF 71 serial 45.

21 May
0130 Starboard main motor flashed over at forward commentator
but burned clear. Probably caused by rust or scale fall-
ing from cooler duct. Luckily Commanding Officer didn't
find out about this until after attack.
0149 Radar contact bearing 345°T., distance 12000 yards.
Crossed ahead of convoy and took station for tracking on
convoy's starboard bow against a dark land and cloud back-
ground. Ship contact No. 5.
0152 Battle stations. Nearest ship has long, low and flat
silhouette similar to tanker. At 11000 yards can not see
bridge, stack or details. Several other dim shapes seen.
Soon lost sight contact in gathering storm.
0230 Raining hard.
0240 Have target speed 8 knots, 6 to 10 minute legs and base
course appears to be 165°T., the same as the course shown

- 5 -

— page 219 —
DECLASSIFIE
U.S.S. NARWHAT.
(B) NARRATIVE (Continued):
0303
0306
0309
0310-55
to
0311-17
0311-30
CONFIDENTIAL
on the chart. Have not been able to spot positions of
ships in formation, but there are several on the same
bearings. To take advantage of the rain and very poor
visibility started to go in for an immediate attack.
Made all tubes ready, depth set 6 feet except deck tubes
which were preset on 10 feet.
Came left and passed astern of what radar called an escort.
Came back to firing course.
Steady on firing course. Slowed to 10 knots.
Fired four bow submerged tubes.
Swung left to bring stern tubes to bear. Increased speed
to 15 knots.
0312-30 Heard two blasts of whistle. Believe near ship saw torpedo
wake on port side. Radar had reported several ships in
line prior to firing.
0312-40 Saw flash of light from direction of target.
0313-06 Two heavy explosions very close together. Engines slowed
0314
0322
0329
0350
0439
0500
1200
1825
22 May
0443
0536
1200
down due to jarring of governor on No. 2 main engine.
Radar reports escorts closing rapidly. Increased speed to
17 knots and commenced evasive action. Draft in conning
tower picking up. Looked bad for a moment. Escorts seemed
to increase speed and search their areas though we could
not see them at 1000 yards.
Radar erratic though still working. No. 708A tube burned
out.
Clearing formation on reverse of convoy course.
Lost radar contact. In view of plane search from DAVAO
and convoy being alerted, decided to disengage. Did not
send message concerning attack because I could add nothing
to information already disseminated. Secured from battle
stations, slowed to 15 knots and set course to clear coast
and convoy. Repairing radar. Rain slackening.
Submerged 22 miles from scene of attack, 30 miles from
coast and 10 miles north of regular DAVAO search area.
Sunrise 0508.
Started to overhaul starboard main motor which took most
of the day. Repairing air leaks.
Position Lat. 8-24 N., Long. 127-20 E.
Surfaced.
Made trim dive.
Surfaced.
Position Lat. 11-02 N., Long. 128-28 E.
- 6 -

— page 221 —
DEBLASSIFIED
U.S.S, NARWHAL
(B) NARRATIVE (Continued):
CONFIDENTIAL
23 May
0444
Made trim dive.
0540
Surfaced.
1200
Position Lat. 12-03 N., Long. 128-05 E.
1800
Installed next to last spare gun sight telescope. This
is the third one to flood so far.
2330
Sighted light in small boat. Avoided. Lat. 12-18 Ν.,
Long. 126-05 E.

24 May
0148
Made landfall on coast of SAMAR.
0425
Submerged for reconnaisance of unloading point.
0820
Sighted security signals.
1200
Position Lat. 12-13 N., Long. 125-33 E. A few small
boats and the normal number of fires were seen along the
coast during the day.
1725
Sighted launch towing sailboats out of cove.
1759
Surfaced and made preparations for unloading.
1825
Launch alongside with sailboats. Major C. M. SMITH, AUS.,
came on board.
1905
Cargo unloaded and 22 passengers disembarked. Still de-
livering diesel fuel and lubricating oil to launch. Al so
furnished charts, tidal and current data on SAN BERNARDI NO
STRAITS, flour for priests, electric lamps, radio parts,
20 mm ammunition, etc., from ship's stores. Unloading
progressed very rapidly due to Major SMITH's preparations
and suitable boats.
1947
Motor launch with Major SMITH left side.
1949
Standing out from coast.
2019
Made trim dive.
2035
Surfaced.

25 May
0447
Made trim dive.
0525
Surfaced.
1200
Position Lat. 11-32 N., Long. 127-46 E. Oil slick is still
with us. No 1 normal fuel oil tank nearly dry. Have lost
2500 gallons from this tank by the fuel account. Can not
use this tank first due to loading of ship.

26 May
0449
Made trim dive.
0531
Surfaced.

- 7 -

— page 222 —
U.S.S. NARWHAL
CONFIDENTIAL
(B) NARRATIVE (Continued):
1003
Sighted wreckage consisting of boxes, timbers, bottles,
etc. Picked up three Japanese landing force life jackets
and one home made life ring. Unable to decipher Japanese
characters. Had been in water at least a month because
small shell fish about 1/8 inch long were attached. A
large shark was much interested in the proceedings.
Position Lat. 10-15 N., Long. 127-30 E.
1200
Position Lat. 10-11 N., Long. 127-28 E.
2345
Made landfall at SANCO POINT.
27 May
0438
Submerged in rainstorm.
0900
In entrance to BISLIG BAY. Reversed course. Fixes showed
westerly current instead of southerly as expected.
1200
Position Lat. 8-18 N., Long. 126-27 E.
1842
Surfaced.
1850
Obtained poor star fix showing position 40 miles south of
previous positions on shore line. Much to the Navigator's
disappointment, the Commanding Officer considered the fixes
on shore better, feeling sure that the numerous bearings
taken wouldn't have checked so well if not correct. Later
experience indicates that the 0900 landfall was probably
made off CATARMAN POINT, 15 miles south of SANCO POINT.
2300
Very heavy rain.
28 May
0000
Approaching rendezvous.
0042
Off point believed to be rendezvous moving north and south
at low speed. Nothing seen in rain.
0322
No signals, moved out from coast before daylight and to
attempt to get out of rain belt for star fix.
0445
No stars, still raining. Submerged.
0900
Clear. Determined position to be 75 miles south of
SANCO POINT.
1200
Position Lat. 6-58 N., Long. 126-33 E.
1833
Surfaced - overcast.
2055
Obtained star fix by moonlight which checked closely with
daylight positions. Current determined as 2 knots southerly.
Proceeding toward rendezvous.
29 May
0300
Raining but occasional camp fires were seen on the hills.
Approaching SANCO POINT. Considered close enough to see
signal fires. Light rain.
0415
No signals sighted. Still raining.

- 8 -

— page 223 —
DOOLASSIFIED
U.S.S. NARWHAL.
CONFIDENTIAL
(B) NARRATIVE (Continued):
0420
Moving out from coast. Dawn.
0511
Completed transmitting NARWHAL 3. Can now see coastline
clearly. We were there this time.
0531
Submerged (Sunrise 0517).
1200
Position Lat. 8-01 N., Long. 126-51 E.
1832
Surfaced.

30 May
0055
Sighted reddish glow bearing 190°T., below horizon.
Lat. 5-42 N., Long. 126-37 E.
0504
Submerged.
1200
Position Lat. 5-20 N., Long. 124-50 E.
1830
Surfaced.

31 May
0514
Submerged.
1200
Position Lat. 6-36 N., Long. 123-29 E.
1835
Surfaced.
2258
Established position off Spot 3.

1 June
0443
Submerged for daylight reconnaisance.
0625
Sighted black smoke on horizon bearing 146°T., moving west.
No ship seen. Lat. 7-44 N., Long. 123-37 E.
0853
Sighted security signal near TUKURAN.
1200
Position Lat. 7-47 N., Long. 123-38 E. Sighted several
sailboats during afternoon. Some apparently going to
TUKURAN.
1400
Sound reports propeller noise (280 rpm) and echo ranging
bearing 145°T. Nothing in sight. Faded out after half an
hour. Believe this was school of fish. Lat. 7-42 N.,
Long. 123-37 E.
1800
Surfaced.
1815
Col. Robert V. BOWLER, AUS., came on board.
1830
Commenced unloading.
2200
Finished unloading which progressed rapidly after shore
party found out how to load boats.
2215
All shore personnel and Col. BOWLER left the ship.
2220
Started to leave cove.
2230
Aground. Blew variable ballast tanks and put the turbo-
blowers on the main ballast tanks.
2254
Off shoal. No apparent damage.

- 9 -

— page 224 —
U.S.S. NARWHAL
(B) NARRATIVE (Continued): CONFIDENTIAL
2 June
0010
Made trim dive.
0038
Surfaced.
0430
Radar picked up small patrol vessel similar to a trawler.
Sighted vessel shortly after radar report. Bearing 120°T.,
distance 4000 yards. Ship contact No. 6. Determined
course 300°T., speed 8. Avoided so as not to compromise
landing spot for NAUTILUS.
0624
Sighted what appeared to be tops of a ship bearing 266°T.,
distance 16000 yards. Ship contact No. 7.
0626
Submerged, went to battle stations and commenced approach.
Angles on bow very hard to estimate, decided on course
100°T., speed 4 knots, though he might have been slower.
0819
Can now make out target to be a small power launch similar
to the type Filipinos used before the war, heavily camouflaged
with palm fronds. Range about 2200 yards, no propeller
sounds. Believed boat friendly and decided not to attack
with guns. He seemed to be heading away about this time,
though could not tell his angle on bow. Headed away to open
range. All hands are very tired after unloading and lack
of sleep.
0830
Sighted a second similar boat approaching from northwest.
This is probably why the first boat headed away. Still
think they are probably friendly but don't know why they
should be in this location.
0956
Surfaced.
Oil slick still there though No. 1 normal fuel tank is all
water. Have lost a great deal of hydraulic oil, 60 gallons
so far, without being able to find an internal leak. Perhaps
this accounts for the oil slick. In addition, hydraulic
1200
2055
plant operates poorly.
Position Lat. 6-22 N., Long. 123-25 E.
Radar interference similar to another SJ. Lat. 4-09 N.,
Long. 123-31 E. Bearing changed from ahead to the starboard
beam in an hour and was lost shortly thereafter; indicating
source of interference was on a northwesterly course.
Nothing sighted, no radar ranges.
3 June
0530
Submerged.
0627
Surfaced.
0640
Radar contact 9 miles, submerged. Plane closed to 6 miles
while diving. Lat. 2-09 N., Long. 123-37 E. Aircraft
contact No. 9.
0646
One bomb fairly close, knocked off some cork and grounded
the bridge diving alarm. We were sighted in a glassy calm sea.

- 10 -

— page 225 —
DECLASSIFIED
U.S.S. NARWHAL
(B) NARRATIVE (Continued): [CONFIDENTIAL]
0850 Just getting ready to surface when sighted a PETE
through periscope. Went to 120 feet.
1013 PETE still there but further away. Back to 120 feet.
1200 Position Lat. 2-22 N., Long. 123-29 E.
1205 Preparing to surface. Radar contact 3 miles. Back to
120 feet.
1412 Sound reported fast screws at 2400 relative which slowed
down and stopped. Rigged for silent running and depth
charge attack. Put contact astern. Stayed at 120 feet
under a density layer to prevent plane observation and
because trim was good.
1447 Sound reports possible screw noise with high background
noise bearing 2850 relative. Headed away from both
contacts, Sound heard various noises during afternoon
but no screw noises and no pinging.
1800 Nothing in sight. Sea still glassy.
1848 Surfaced and set course for BANGKA PASSAGE.

4 June
0056 In BANGKA PASSAGE.
0209 Lookouts and OOD sighted CHIDORI type torpedo boat stand-
ing into BANGKA PASSAGE from southeast. Ship contact No.
8. Could not get radar contact. Estimated range 10-12000
yards. The Commanding Officer could not see this contact,
whether this was due to fatigue or poor night vision is
unknown. In any event he was too late to block the passage.
0530 Submerged. In view of yesterday's events and this morning's
CHIDORI, decided to run submerged for next two days to avoid
detection and let all hands rest. So far we haven't re-
covered from unloading at Spot 3.
1200 Position Lat. 1-14 N., Long. 126-12 E.
1800 Hydraulic plant erratic.
1824 Hydraulic plant in operation, surfaced.

5 June
0345 Radar interference ahead. Nothing sighted and no ranges
obtained. Probably friendly submarine. Ship contact No.
9. Very broad bearings passing to port.
0507 Submerged.
1200 Position Lat. 1-39 S., Long. 126-50 E.
1812 Surfaced. Very bright moon tonight. Visibility 30 to
40000 yards.

- 11 -

— page 226 —
DEOLASSIFIED
U.S.S. NARWHAL
(B) NARRATIVE (Continued):
6 June
0523
Submerged.
0600
Surfaced.
1200
Position Lat. 5-22 S., Long. 125-40 E.
2010
Finished transmitting NARWHAL 5.
2118
Sighted ship bearing 100°T., distance 5000 yards. Ship
contact No. 10. Called radar tracking party.
2200
No radar contact. Can now make out as big sailboat.
Secured radar tracking party. No indications of being
sighted but he should have with the dense smoke made by
the engines on change of speed and the bright moonlight.
7 June
0522
Submerged.
0547
Surfaced. Cleared ground in bridge diving alarm.
1200
Position Lat. 7-39 S., Long. 128-41 E.
1546
Passed through MALAY BARRIER.
1700
Lookout sighted two light bombers. Submerged. Not seen
by anyone else. Aircraft contact No. 10.
1740
Surfaced.
8 June
0518
Submerged.
0558
Surfaced.
1200
Position Lat. 10-07 S., Long. 129-27 E.
1408
Radar contact 12 miles.
1409
Closed to 10 miles. Submerged. Aircraft contact No.
11. Plane not seen.
1445
Surfaced.
9 June
0335
Exchanged recognition signals with escort, ML-809, and
proceeded in swept channel.
0525
Passed through net gate.
0546
Boarding party and pilot came on board.
0616
Ran degaussing range.
0630
Moored to Boom Jetty, PORT DARWIN, AUSTRALIA.

- 12 -

— page 227 —
DECLASSIFIED
(C) WEATHER:
U.S.S. NARWHAL
#11
The Southwest Monsoon was blowing in the PHILIPPINE
ISLANDS and the rainy season had just started in MINDANAO. The
sea was generally calm. East of SAMAR the sea was calm and flat
and in the Southeastern part of the CELEBES sea was glassy smooth.
Frequent rain squalls occurred along the MINDANAO coast.

(D) TIDAL INFORMATION:
The current on the East coast of MINDANAO ran south at
2-2¼ knots continually. From PUSAN POINT to CAPE SAN AUGUSTIN the
current ran at 2 knots in a southwesterly direction changing to
westerly to run between SARANGANI ISLAND and KAWIO ISLAND. The
MOLUKKA PASSAGE current ran south southwest about 1 knot.

(E) NAVIGATIONAL AIDS:
No remarks.

(F) SHIP CONTACTS: (All times How)
: : : :Est. : How :
: Time :Lat. : :Course:Con- :
No.: Date :Long. : Type : Speed;tacted : Remarks
: : : : : :
1 :1055 : 24-35 S: SS : : SD :HNMS K-15
:9 May : 112-31 E: : : : :
2:1737 : 23-15 S: SS : : SD :U.S.S. PADDLE
:9 May : 112-42 E: : : : :
3:0033 : 21-28 S: SS : 090 : SN :U.S.S. BLUEFISH
:10 May:112-50 E: : 12 : : :
4:2047 : 2-56 S:Schooner: : SN :Had sail down (2000
: :125-53 E: or : : :yards).
: : :Sailboat: : : :
5:0149 : 7-52 N:Convoy : 165 : R :Attack No. 1.
:21 May :127-00 E: : 8 : : :
6:0430 : 6-50 N: Small : 300 : R :Avoided.
:2 June :123-38 E:Trawler : 8 : : :
7:0624 : 6-37 N:2 Small : 100 : SD :Closed, decided
:2 June :123-26 E:Launches: 4 : : :friendly.
8:0209 : 1-53 N:Chidori : 300 : SN :No radar contact.
:4 June :125-26 E: : 15 : : :
9:0345 : 1-12 S: SS? : 000 :Radar : Did not sight nor get
:5 June :126-47 E: : 15 :inter- :radar range.
: : : : :ference: :
10:2118 : 6-25 S:Sailboat: 000 : SN : No radar contact.
:6 June :126-30 E: : 4 : : :

- 13 -

— page 228 —
DECLASSIFIED
(G) AIRCRAFT CONTACTS: (All times How)

:Time :Lat. : Est. How
No.: Date : Long. :Type(s): Range :Initial:Course :Con- :
: : : Altitude:tacted: Remarks
: : : :
1 :1350 : 30-42 S: PBY :10 mi. : 090 : SD :Passed well clear
:8 May :114-20 E: : : 500 : :ahead.
2 :0835 : 20-40 S: PBY :10 mi. : 280 : SD :Exchanged recog-
:10 May :112-59 E: : : 500 : :nition signals.
3 :0854 : 12-12 S: : 3 mi.: : : R :Did not sight.
:14 May :129-57 E: : : : :
4 :1310 : 4-15 S:Small : 5 mi. : : SD :Lookout only.
:17 May :126-01 E:Bomber: : 500 : :
5 :1545 : 3-40 S: :13 mi. : : R :Did not sight.
:17 May :126-00 E: : : : :
6 :0630 : 1-05 S: :14 mi. : : R :Did not sight.
:18 May :126-44 E: : : : :
7 :1252 : 0-12 N: :10 mi : : R :Did not sight.
:18 May :126-41 E: : : : :
8 :1338 : 0-14 N: :10 mi. : : R :Believe same as
:18 May :126-42 E: : : : : No. 7.
9 :0640 : 2-09 N: PETE : 9 mi. : Var. : R :One bomb.
:3 June :123-37 E: : : 500 : :Later sighted plane.
10 :1700 : 8-21 S: 2 Light: 4 mi.: 075 : SD : Lookout only.
:7 June :129-17 E:Bombers: : 500 : :
11 :1400 : 10-26 S: :12 mi. : : R :Not sighted.
:8 June :129-29 E: : : : :

(H) ATTACK DATA:

U.S.S. NARWHAL TORPEDO ATTACK NO. 1 PATROL NO. 11
Time - 0310 H Date - 21 May 1944 Lat. 7-52 N. Long. 127-00 E.

TARGET DATA - DAMAGE INFLICTED

Description A large convoy, number and location of all ships
not being determined, with several escorts. Con-
tact was made by radar, from ahead and on star-
board bow, range 12000 yards. Moved in to dark
land and cloud background on convoy's starboard
bow and tracked from ahead. At 11000 yards saw
nearest ship with long low flat silhouette similar
to a tanker, but no details. Dark night, no moon,

- 14 -

— page 229 —
DEOLASSIFIED
U.S.S. NARWHAL

(H). ATTACK DATA (Continu
Ships sunk:
Ships damaged:
Damage determined
by:
Target Draft
-
It is
and rain soon started hiding targets.
believed that there were four columns of ships.
None.
Two, unidentified.
Saw flash, heard and felt two explosions timed
to indicate hits on different ships (2 min. 6
sec. after firing first torpedo)。
Unknown Course - 145 Speed
Speed 13 Course 050
Type Attack:
Tubes Fired
OWN SHIP DATA
Depth Surface
-
-
8 Range 2500 yards.
Angle
0
FIRE CONTROL AND TORPEDO DATA
Radar surface attack. When rain storm reduced
visibility to zero, decided to attack through zig
plan and disposition of ships in convoy was not
entirely known. Seven minutes before firing came
left and passed astern of escort, without being
sighted, then came back to firing course. During
firing there were indications of a target zig away
of about 20 degrees. After firing bow tubes, swung
to bring stern tubes on but before getting around
had to evade escorts who had speeded up and were
searching their sectors.
No. 4
85 Stbd.
No. 3
No. 2
No. 1
Track Angle
Gyro Angle
85 Stbd.
85 Stbd.
85 Stbd.
6-2/3 L.
6½ L.
7-2/3 L.
5 Lo
Depth Set
6 ft.
6 ft.
6 ft.
6 ft.
Power
High
High
High
High
Hit or Miss
Hit
Miss
Miss
Hit
Erratic
No
No
No
No
Mark Torpedo
14-3A
23
23
23
Serial No.
26582
52848
52919
52858
Mark Exploder
6-4
6-4
6-4
6-4
Firing Interval
Serial No.
Actuation Set
Actuation Actual
Mark Warhead
Serial No.
Explosive
Type Spread
8278
8690
1420
8634
Contact
Contact
Contact
Contact
Contact
Miss
Miss
Contact
16-1
16-1
16-1
16-1
11811
12375
12194
11691
TPX
TPX
TPX
TPX
0
10 sec.
9 sec.
9 sec.
Divergent
Divergent
Divergent
Divergent
-
15 -

— page 230 —
DECLASSIFIED
U.S.S. NARWHAT.
(H) ATTACK DATA (Continued
Sea Conditions | 1 | 1 | U.S.S. ORION | 1 | 1 |
Overhaul Activity | | | | | |
Remarks | HSN | HSN | HSN | HSN |
Spread used was only ¼" due to error. With
several ships on approximately the same bearing
more hits would probably have been obtained by
a larger spread. Believe that the first
torpedo went ahead of the near target, which saw
the wake on her port hand and sounded two blasts
of the whistle, then this torpedo hit a far target
at approximately the same time the last torpedo
hit the near target. The second and third
torpedoes were misses.

(I) MINES:
No mining was observed. Filipinos have recovered one or
more anchored mines off DAPITAN, MINDANAO. A complete report was
submitted to General Headquarters, Southwest Pacific Area, by Col.
BOWLER, AUS.

(J) ANTI-SUBMARINE MEASURES AND EVASION TACTICS:
Air search has been much intensified in the MOLUKKA Area
and also in the Southeastern part of the CELEBES SEA. It was re-
ported from MINDANAO sources that air search of the MINDANAO SEA
is almost continuous. Perhaps this latter report indicates a change
of convoy routing.

There are indications that enemy aircraft can home on the
SD. Also the persistence of search planes, once contact has been
established, is much greater than experienced on previous patrols.

After the attack of 21 May evasion consisted of avoiding
the closest escort, in each case, using radar information. On
3 June, air attack was evaded by remaining at 120 feet submergence
and surface attack (listening only) by running silently away from
the contact.

(K) MAJOR DEFECTS AND DAMAGE:
From the stand point of the main engines, the only apparent
defect which may later cause serious trouble is the none too stable
operation of the regulating governors on #1, 2, and 4 engines.
Difficulty is met with in starting and stopping the engines. Care
has been taken in keeping the engines correctly timed and the control
linkage operating freely. This condition has existed for quite some

- 16 -

— page 231 —
DECLASSIFIED
U.S.S. NARWHAL

(K) MAJOR DEFECTS (Continued):
time, with #2 engine in particular; it is requested that during
the next refit period every effort be made to determine and remedy
this defect.

The starboard main motor had two flashovers at the commutator.
This was caused by dirt or water falling down on the commutator from
the motor ventilation system. At the time the flashovers occurred
the motor had a light load on it. No material damage resulted to
the motor.

The operation of the master gyro compass continues to be
erratic due to sticking of the transmission system. The cause of
the trouble has not yet been eliminated though performance is
better than on previous patrols. The ship's force has fought this
defect for 8 months and 3 tenders have attempted to rectify it.
A complete rewiring of the gyro compass system is considered the
only remedy.

The main storage battery, at present, is using an average
of 220 gallons of battery water per day which is felt to be excessive.
The battery blowers are now being used only during the charge, but
up to date very little change has been noted on battery water
consumption. Also battery specific gravity and capacity are low.
It is considered that the low gravity is due to an original low
gravity electrolyte and that the lack of sufficient capacity is
primarily a lack of sufficient designed battery power for the size
of the ship.

Four gunsight telescopes flooded and one fogged (all Mark
39 Mod. 2) are too many. These are difficult to make tight. They
should be designed for a greater test depth. Poppet valves on the
after torpedo tubes have leaked due to hardness and age of the
leather washers. Will be remedied in port.

The main hydraulic system was a continual source of
trouble. Hydraulic oil is being lost at the rate of more than two
gallons a day. As there were no serious leaks found inside the
boat, it is thought that external leakage through one of the flood
valve operating mechanisms may be one of the causes of our constant
oil slick. Also there is air leakage from both accumulators at a
rate of about 800 pounds a day. This necessitates recharging the
accumulator in use three times in a 24 hour period. The leakage in
each accumulator was found to be around the air packing on the
movable piston and both glands must be repacked.

There are still sizable leaks in the main ballast tanks.
The ship settles slowly developing a starboard list and requires

- 17 -

— page 232 —
8
DECLASSIFIED
U.S.S. NARWHAL
(K) MAJOR DEFECTS AND DAMAGE (Continued):
frequent blowing with high pressure air and occasional use of the
low pressure blowers. It has not been determined whether the leaks
are in the master vents, tank tops, vent risers, residual drains,
or the turbo-blow lines; but thorough testing is needed at the
next refit and deficiencies repaired.

The liquidometer gauges to #5 and 76 auxiliary tanks do
not record ballast changes above 17,000 pounds. Apparently only
the upper float and associated piping in both tanks require repair.

There is a serious oil leak in fl normal fuel oil tank
from which 2500 to 4000 gallons of fuel oil were lost during the
first 15 days of patrol. Also, there is a leak in #32 normal lube
oil tank where 800 gallons of lube oil were contaminated by salt
water.

The repairing of the bearing surfaces in the sea chest of
the keel mounted sound head projector is unsatisfactory. During
the last refit these surfaces were built up by welding and then
ground down to fit. They are now wearing again and wearing un-
evenly, so that the shaft binds and vibrates when rotated. The
efficiency of the sound head is reduced considerably because sound
can not hear over the noise of the vibration. During all day dives
the topside JK head was used in order to save the keel head for use
when the QCH head would be needed, except for brief daily periods
when the keel mounted head was used to prevent freezing in the
bearings.

One of the bridge talkback units was knocked out when
bombed on 3 June.

(L) RADIO:

All serials were received. As experienced on previous
patrols, while in the PHILIPPINE Area, reception was very difficult
and sometimes impossible during daytime due to VIXO's weak signal
strength. Even at night, San Francisco (NPG) and Honolulu (NPM)
came in much stronger than VIXO. Jamming was not as troublesome
as when closer to the MANILA Area on other patrols.

The first transmission was easily cleared through VHM on
4235 Kcs. The second transmission was sent on 8470 Kcs. and
difficulty was had in hearing the receiving station due to other
traffic on and near this frequency.

(M) RADAR:
The performance of both radars was excellent throughout

- 18 -
0

— page 233 —
DECLASSIFIED
U.S.S. NARWHAL

(M) RADAR (Continued):
the patrol, though many 708A tubes for the SJ radar were burned
out during the first week of patrol.

(N) SOUND:
Sound conditions were very good in all areas.

(0) DENSITY LAYERS:
: Time : Lat. : Depth :
No.: Date : Long. : Water : Layer : Weather: Remarks
: : : : : :
1 :0550 : 5-37 S:1700 fathoms: 280 feet : BC : Sharp Layer.
:17 May :126-54 E :
2 :0545 : 3-10 N :1800 fathoms: 165 feet : C : Very gradual.
:19 May : 127-30 E :
3 :0540 : 6-15 N :3300 fathoms: 200 feet : OR : Sharp.
: 20 May : 127-52 E :
4 :0530 : 5-17 N :1400 fathoms: 260 feet : BC : Excellent.
:30 May :125-50 E :
5 :0530 : 2-10 N : 2000 fathoms: 110 feet : C : Poor.
:3 June :123-38 E:
6 :1000 : 1-15 N :1070 fathoms: 180 feet : CL : Gradual.
:4 June :126-10 E :
7 :0530 : 1-22 S :1750 fathoms: 200 feet : C : Sharp.
:5 June :126-51 E:
Definite signs of layers were found throughout CELEBES SEA
Area and southern coast of MINDANAO. Usually the layers were well
defined.

(P) HEALTH, FOOD, AND HABITABILITY:

SHIP'S COMPANY
Complaint | No. Cases | Treatments | Still Under Treatment
Sinus | 3 | 12 | 0
Conjunctivitis | 3 | 18 | 1
Burns | 1 | 1 | 0
Bacterial Infection | 1 | 12 | 0
Ear Infection | 1 | 8 | 1
Lacerations | 1 | 6 | 0

Number of actual sick days - 3.

During this patrol no sign of venereal infection has
been discovered. General health of crew is good.

- 19 -

— page 234 —
DECLASSIFIED
U.S.S. NARWHAL
(P) HEALTH, FOOD, AND HABITABILITY (Continued):
One officer developed a swelling of the face, hands, and
legs and spots similar to insect bites appeared on his body. He
was treated for conjunctivitis at first but later decided that his
kidneys were at fault.

Health and habitability considered good.

Food was better this patrol due to the efforts of the
Commissary Officer.
(Q) PERSONNEL:
Our personnel are in general of very high caliber and
performed admirably under trying conditions. The night surface
attack of 21 May 1944, was the first surface torpedo attack this
ship has ever made and all hands performed their duties excellent-
ly. Lieutenant (jg) J. W. CURTIS, USNR., is deserving of special
credit for his masterly operation of the Torpedo Data Computer.

Ship's cooks continue to be a source of dissatisfaction in
that they are poorly qualified for their ratings and are particular-
ly lacking in the qualifications of a petty officer. The improve-
ment in the commissary department is due entirely to the efforts of
Lieutenant G. O. ATKINSON, Jr., USN.
(R) MILES STEAMED - FUEL USED:
Base to Barrier | 2438 miles* | 42,330 gallons
In Area | 4873 miles* | 70,400 gallons
Barrier to DARWIN | 361 miles* | 5,730 gallons
* By pit log.
(S) DURATION:
Days to Barrier | 9
Days in Area | 22
Days to Base | 1
Days submerged | 12
(T) FACTORS OF ENDURANCE REMAINING:
Torpedoes | Fuel | Provisions | Personnel Factor
6 | 34,000 gallons | 50 days | 40 days
Limiting factor this patrol - Provisions of Operation Order.

- 20 -

— page 235 —
DECLASSIFIED
(U) REMARKS:
U.S.S. NARWHAL
Commander Task Force 71 serial 23 of 1 June, advising of
security of SPOT THREE, was not received until after unloading had
been completed.

While making the landfall at SPOT THREE the evening of
31 May, the Filipinos in the beach party who were located at least
ten miles away became alarmed at the noise of the engine exhaust
and awakened Col. BOWLER with a report that the Japanese were
coming in a fleet of motor launches. They also suggested taking
to the hills. Col. BOWLER listened and then assured the Filipinos
that the Japanese didn't have anything that made that much noise!
We knew that our engines were noisy but we didn't know that they
were that noisy. It is believed that the major part of the noise
is due to poor muffler design, particularly the mufflers for the
auxiliary engines.

In addition the ship has a high noise level submerged.
The auxiliary machinery is primarily responsible for this noise
though the starboard shaft remains more noisy than the port shaft.
In particular the noise is caused by vital auxiliary machinery -
the bow and stern planes, steering, and the hydraulic plant account-
ing for most of it.

The operation of the gyro compass system leaves much to be
desired. While it can be tolerated from a navigational point of
view, the gyro compass is the heart of the fire control system and
erratic performance of the gyro compass makes the fire control
system nearly useless.

It is believed that fuel can be eliminated as a source
of the continuous oil slick because the slick persisted after No.
1 normal fuel oil tank had been emptied. This leaves the three
possibilities of hydraulic oil, lube oil, and engine exhaust. Any
one or all of these sources may be at fault. Excessive engine
exhaust smoke occurs upon every increase in speed. No oil slick
while submerged has been noticed.

It is recommended that storage facilities and a stock of [HANDWRITTEN: A]
lube oil be provided at DARWIN, NORTHERN TERRITORY, AUSTRALIA.

- 21 -

— page 236 —
BEOLASSIFIED
U.S.S. NARWHAL

INTELLIGENCE REPORT ON THE
PHILIPPINE ISLANDS

SAMAR
The enemy has effectively occupied, by use of small, well-
armed garrisons, most of the North and East coast of SAMAR. He
increased his troops from SAN BERNARDINO STRAITS all along the
Northern coast but lately he has left the area from CATARMAN to
the STRAITS. On BATAG ISLAND (N.E. corner of SAMAR) many Filipino
laborers are working on some project around an old lighthouse.
This could possibly be an embryo radar station since it is under
Navy control. LAONG ISLAND is well garrisoned. Most SAMAR
garrisons are from 2-3000 men and seem to be there mainly for
foraging food. There is practically no shipping using SAN
BERNARDINO STRAITS lately but three 155mm guns captured from us
are on CAPUL ISLAND. At TACLOBAN (LEYTE), a Navy airfield is
under construction. As a note of interest, one thousand Japanese
evacuees, old men and women, recently were transported from DAVAO
to GUIUAN (S.E. corner of SAMAR).

LUZON
LEGASPI is mined and has a good airfield. Another airfield is
under construction at BULAN.

CEBU
CEBU is practically entirely under Japanese control - the most
so of any VISAYAN ISLAND. At OPAN (MACAPAN ISLAND just off CEBU
CITY) there is a reported Japanese submarine base.

MINDANAO
There is an exceptionally large number of airfields on
MINDANAO ISLAND. The largest is perhaps at BOAYAN at the end of
SARANGANI BAY. There are at least four good fields around DAVAO
and one definitely at MALALAY BAY on the West coast of DAVAO GULF.
The two reported ones around ILLANA BAY are a large one at
COTABATO and one at MALABANG. The next one to the west is at
ZAMBOANGA Two seaplanes are kept continually at MALANIPA ISLAND
off ZAMBOANGA. In the center of MINDANAO there are airfields at
CAGAYAN, CAMP KIETHLEY (small), MALAYBALAY, DEL MONTE, VALENCIA,
MARA, and CARMEN. The western half of the island has very little
Japanese activity. There are no more than 3000 men at ZAMBOANGA
and none on the western side of the ZAMBOANGA PENINSULA. There is
a garrison at DAPITAN, POLO POINT, MISAMIS, ILIGAN, 'and CAGAYAN.
A few ships have anchored overnight along the MORO GULF coast but
not often.

8 1769
The area bounded by 9 N - 12 N and 127 E - 128 E is apparently
empty and had no air patrol while this vessel was in it.

— page 237 —
FE24-71/A16-3
Serial: 00019
DECLASSIFIED
UNITED STATES NAVY
FIRST ENDORSEMENT to:
USS NARWHAL Top-Secret
Ltr. no serial, dated
9 June, 1944. Report
of Eleventh War Patrol.
From:
To
Via:
:
Subject:
12a/ms
20 JUL 1944
The Commander Submarines, SEVENTH FLEET.
The Commander-in-Chief, UNITED STATES FLETT.
The Commander, SEVENTH FLEET.
U.S.S. NARWHAL (SS167)
Patrol Comment on.
Report of Eleventh War

1.
NARWHAL'S Eleventh Patrol, covering a period of
thirty-two days, was conducted in the PHILIPPINE ISLANDS Area.
Under a new Commanding Officer, NARWHAL completed a Special
Mission and successfully attacked an enemy convoy.

2.
NARWHAL executed two phases of the Special Mission
with competence and dispatch. Hampered by poor visibility and
navigational difficulties, NARWHAL exhausted all possibilities
of sighting the security signal before abandoning the third
phase of this mission. While enroute to the rendezvous site,
NARWHAL successfully conducted its first night surface attack,
damaging two unidentified ships of a large convoy.

3.
In so far as possible, material defects men-
tioned in this report will be corrected during refit in FREMANTLE.

4.
This patrol is designated "successful" for the
purposes of award of Submarine Combat Insignia.

5.
The Force Commander congratulates the Commanding
Officer, Officers and Crew upon the successful completion of
a Special Mission and for the following damage inflicted upon
the enemy:

- 1 -

8 1789

— page 238 —
FE24-71/A16-3
Serial: 00019
DECLASSIFIED

FIRST ENDORSEMENT to:
USS NARWHAL Top-Secret
Ltr. no serial, dated
9 June, 1944. Report
of Eleventh War Patrol.

Subject:
UNITED STATES NAVY

12a/ms
20 JUL 1944

U.S.S. NARWHAL (SS167) - Report of Eleventh War
Patrol - Comment on.
DAMAGED
1 - UN - - - - - - - 4000 Tons (Attack No. 1)
1 - UN - - - - - - - 4000 Tons (Attack NO. 1)
Total - - - - - - - 8000 Tons.

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

DISTRIBUTION:
Vice CNO (1)
Com7thFlt (1)
ComsubspacFlt(1)
File (1)

[SIGNATURE: P. F. Straub]
P. F. STRAUB, Jr.,
Flag Secretary.

- 2 -

8 1763

— page 239 —
UNITED STATES FLEET
COMMANDER SEVENTH FLEET
R.&. fo.
R.S. No.
Don 075.18
81769
A16-3(2)
(F-2/rd)
Serial: 00077

DECLASSIFIED

SECOND ENDORSEMENT to
USS NARWHAL Top Secret
Ltr. dated 9 June 1944,
Report of Eleventh War
Patrol.
From:
To :
Subject:
1.
Commander Seventh Fleet.
AUG 20 1944
Commander in Chief, United States Fleet.
U.S.S. NARWHAL (SS167) - Report of Eleventh
War Patrol.
Forwarded.

[SIGNATURE: H. W. GRAF]
H. W. GRAF,
Chief of Staff.

[STAMP: COMMANDER-IN-CHIEF
FLAG OFFICE
RECEIVED]

1944 AUG 30 8 47

— page 240 —
KODAK
U.S.S. NARWHAL
DECLASSIFIED
1ST COPY
DECLASSIFIED ART 0445, OPNAMINST 5510.10
BY [HANDWRITTEN: 9/C] DATE [HANDWRITTEN: 2-29-68]

Care of Fleet Post Office,
San Francisco, California,
7 July 1944.

From:
To :
Via :
The Commanding Officer.
The Commander in Chief, United States Fleet.
(1) The Commander Task Force SEVENTY-ONE.
(2) The Commander SEVENTH FLEET.

Subject:
U.S.S. NARWHAL - Report of TWELFTH War Patrol.

Enclosures:
(A) Subject Report.
(B) Intelligence gathered on MINDORO, PANAY, PALAWAN.
(C) Film and List of Pictures Taken (CTF 71 only).
(D) Track Chart (CTF 71 only).
(E) Intelligence Furnished on BULA, CERAM (CTF 71 only).
(F) Detection of Submarine by A/S Surface Craft.
(G) Random Depth Charge Attack by Surface Craft.

1. Enclosure (A), covering the TWELFTH War Patrol of
this vessel conducted in the PHILIPPINE ISLANDS during the period
10 June, to 7 July 1944, is forwarded together with enclosures
(B), (C), (D), (E), (F), and (G).

[SIGNATURE: J. C. Titus]
J. C. TITUS.

8 1768

— page 241 —
DECLASSIFIED
U.S.S. NARWHAL
(A) PROLOGUE:
On 9 June 1944, returned to PORT DARWIN, NORTHERN
TERRITORY, AUSTRALIA, and moored to BOOM JETTY. Loaded cargo,
fresh water, and fuel. Pumped 800 gallons of lube oil to drums
on Jetty as this oil had been contaminated by a salt water leak
into the tank. Received four torpedoes from U.S. Naval Section Base.

Accomplished the following repairs:
(1) Repacked air and oil sides of port accumulator but there
was not enough packing on hand to pack starboard accumulator.
(2) Welded patches on main engine exhaust elbows.
(3) Repainted rust spots on deck.
(4) Checked all torpedoes.
(5) Checked all guns and boresighted.
(6) Checked all poppet vavles and repaired No. 6.
(7) Greased entire ship.
(8) Checked and inspected main and auxiliary engines.
(9) Checked starboard main motor, cleaning motor and
ventilation duct.
(10) Repaired field rheostat for starboard main motor.
(11) Cleaned gyro compass and changed transmission motor and
gear train.
(12) Removed ground from bridge diving alarm.
(13) Cleaned and checked auxiliary motors.
(14) Exercised and greased emergency vents.
(15) Checked topside for oil leaks, none found.

A cracked weld on the door to the gasoline delivery meters
was not repaired.

(B) NARRATIVE: (All times HOW)

10 June

1030 Anchored off.
1515 Underway. Took 45 minutes to get anchor housed due to
usual cocking of anchor.
1625 Passed through net gate.
1858 Made trim dive.
2207 Radar interference ahead passing to west and south. Probably
U.S.S. NAUTILUS. Not sighted and no radar range obtained.
Lat. 11-37 S., Long. 129-30 E.

11 June

0522 Made trim dive.
1200 Position Lat. 9-21 S., Long. 129-24 E.
1507 Radar contact 15 miles. Lost contact at 16. Not seen and
did not dive. Aircraft contact No. 1.
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(B) NARRATIVE (Continued):
12 June
0508
Made trim dive.
1200
Position Lat. 5-14 S., Long. 130-46 E.
1313
Lookout reported periscope ahead. Soon identified as a
stump after first thinking it was a boat.
1339
Radar reported plane 8 miles. Aircraft contact No. 2.
Submerged.
1416
Surfaced.
13 June
0438
Submerged for reconnaisance of BULA, CERAM ISLAND.
0645
Sighted large, 2 masted schooner with new sails standing
east from BULA BAY. Ship contact No. 1. Two other schooners
were at anchor in the Bay all day. This may be the manner of
shipping oil products to the Southwest. We are leaving an
oil slick, though sea is choppy. During the day studied the
town of BULA. The hospital was hard to identify and was not
definitely identified until late afternoon. The tanks on the
hill are easily seen at anytime of the day. The power house,
boiler house, and pumping station were easily seen in the
morning from the eastward. They have prominent red roofs with
a varied camouflage design of white lines. The refinery was
not recognized. Little current was found in the Bay.
1200
Position Lat. 3-04 S., Long. 130-31 E. Took pictures of town.
See list, enclosure (B).
1714
Battle surface (Sunset 1717).
1716
Fired first shot. Dropped a few at water front to discourage
boating then shifted to tanks on hill. Shore anti-aircraft
batteries replied promptly with many bursts on in deflection,
a little short in range and bursting about 1000 feet in the
air. One gun was consistently well over, also having bursts
about 1000 feet high. Hit gasoline tank first, which started
a small fire, then a large billowing flame shot into the air.
Then hit a fuel tank in the northern group which produced a
small fire but lots of smoke. Got one hit in gun area while
trainer was wiping off his telescope!
1722
Dropped down to power house area due to smoke around tanks.
1724
Shore batteries getting down to water about 500 yards short
with one gun still over about 600 yards. Secured gun crews
and increased speed to emergency (17 knots).
1725½
Have expended 59 rounds. Guns secured, all hatches closed.
Engines have obliged with their usual heavy smoke screen, all
colors, gray, black, and brown, which drifts between us and
the guns ashore. Shells are falling into the smoke which
worries stern lookout. Took some pictures of the fire from
the bridge.
1730
Looks like smoke will clear up so submerged.

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(B) NARRATIVE (Continued):
1802
1815
2015
Surfaced.
Transmitted NARWHAL serial 2 reporting results.
Glow of fire from burning tanks just visible 27 miles away.
Sure of two tanks.

14 June
0455
Submerged in OBI STRAIT.
1200
Position Lat. 1-17 S., Long. 128-11 E. Leaving an oil slick
submerged. Closing header box valve is some help though we
have a water seal in all tanks. This does not eliminate the
slick. Now I know why the plane was so persistent on the
last patrol.
1816
Surfaced.
2000
SJ radar range unit out. An oil slick, a noisy ship, and
radar out fixes us fine.

15 June
0530
Submerged.
0800
Oil slick still with us.
1200
Position Lat. 0-51 N., Long. 126-23 E. Can't fix SJ radar
range unit as crystal lead is broken. Have paper range scale
as jury rig. Luckily the radar technicians had an argument
in DARWIN and measured the range per inch on the scope.
1810
Surfaced. SJ radar ranges seem fairly close for navigational
ranges. Considerably radar interference astern and once from
ahead passing to port. Believed to be U.S.S. NAUTILUS astern
and U.S.S. RASHER on opposite course. Not sighted, no radar
ranges.
2345
Through BANGKA PASSAGE.

16 June
0535
Made trim dive.
0843
Radar contact 6 miles, closing. Aircraft contact No. 3.
Submerged. Radar reported plane overhead by time hatch was
closed. Doubt this as there were no bombs and speed would
be too high.
0945
Surfaced.
0957
Radar contact 15 miles. Aircraft contact No. 4. Probably
same plane homing. He seems to fly below the radar beam
only occasionally getting high enough to give us a pip.
Submerged. We still have a generous slick both surface and
submerged. Light chop and clouds help hide it.
1030
Decided to stay down for lunch.
1200
Position Lat. 3-21 N., Long. 123-43 E.
1318
Surfaced.
1424
Passed floating oil drum which had been in the water some
time. Lat. 3-26 N., Long. 123-29 E. Also considerable
driftwood during the afternoon.
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(B) NARRATIVE (Continued):

17 June
0338 Lighted TAWITAWI ISLAND bearing 353°T., distance 30 miles.
0513 Submerged.
1200 Position Lat. 4-32 N., Long. 120-05 E.
1400 JK sound head gets our screws all around.
1903 Surfaced.
1930 JK sound head has broken shaft. Lashed head in place.
2225 Battle stations - started through SIBUTU PASSAGE.

18 June
0030 Through SIBUTU PASSAGE. No enemy activity. Secured from
Battle stations.
0517 Submerged.
0912 Sighted native sailboat. Avoided. Lat. 6-10 N., Long.
119-52 E. Oil slick still with us.
1200 Position Lat. 6-13 N., Long. 119-54 E. Sea becoming rougher
and oil slick diminishing.
1442 Surfaced. Repaired bridge talk back system.

19 June
0542 Made trim dive.. Oil slick much diminished indicating that
we are using the right tank though it isn't empty yet.
1200 Position Lat. 9-54 N., Long. 120-35 E.
1241 Radar contact 28 miles, closing to 24 miles, then steady.
Submerged to insure against detection. Aircraft contact No. 5.
1428 Surfaced. No. 3 main engine out of commission due to cracked
liner. Found rings sticking in ring grooves and broken.

20 June
0230 In position off LIPATA POINT, PANAY.
0430 Submerged.
0630 Sighted security signals.
1200 Position Lat. 11-34 N., Long. 121-56 E. Further investi-
gation discloses that other units of No. 3 main engine and
also units of No. 4 main engine have broken rings. Sighted
some native sailboats during the day.
1813 Surfaced (Sunset 1816).
1830 Started to break out cargo. A representative of Col. PERALTA
came on board. The Japanese are located at CULASI, 3.5 miles
south of our position, and at PANDAN, 13 miles north. Also,
the Japanese probably saw us surface. Unloading conditions
look practically ideal with very calm water, little wind, and
a short run for the boats. There were sufficient boats to
take most of the cargo in the first trip but the boatmen re-
fused to load them to capacity. When about 15 per cent loaded
they started to complain about enough and shortly after would
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U.S.S. NARWHAL
"(BY NARRATIVE (Continued):
2200
shove off. Argument did no good. We tried holding their
lines but they would abandon the lines to get away. The
officers sent out to direct unloading had no control over
the boatmen and little inclination to try to control them.
We finally put our men in each boat and loaded them to
capacity ourselves. Some of the supplies were unboxed and
dumped in the boats loose to save space. Some of the equip-
ment we loaded in the boats was jettisoned by the Filipino
boat crews. No one seems very anxious to get this cargo.
Col. GARCIA came on board. At his request moved closer to
the beach. Estimate 30 per cent of cargo off. Long periods
of time occurred without any boats alongside. Some of the
larger boats made but one trip.

21 June
0100
入
0335
0400
0430
0437
0450
No boats for some time. Considering the shore party on deck,
who have done as little work as possible tonight, decided
they could swim the gasoline drums ashore. It was just about
even, 2 men per drum. When the Filipino officers heard of
this they grabbed the first banka ashore, refusing to even
take one case of ammunition, but saying that they would send
more boats. Should be through unloading by now. Estimate 30
per cent of cargo remains on deck plus gasoline drums. Four-
teen evacuees are on board and military passengers have been
sent ashore.
Last boat loaded to capacity, about 15 tons, over the
strenuous objection of the "Patron". Got most of shore party
into boat but about 20 men would not go willingly. After
pushing a dozen or so overboard the rest got the news and
jumped, leaving their guns and equipment behind. The crew
liked this part of the unloading. The Filipinos jettisoned
some of the cargo in the boat. To save time commenced
jettisoning balance of cargo. Gasoline drums and carbine
boxes floated. Estimate 15 tons of cargo were thrown over-
board as well as all of the gasoline drums. Started moving
out of bay.
All cargo off and deck secured for sea.
Radar contact bearing 354°T., distance 5000 yards. Ship
contact No. 3. Can just make her out in down against land
background of PUCIO POINT. Has the appearance of a small
ship, perhaps a PC boat, angle on bow small. We have
BATBATAN ISLAND as a background and are moving to westward.
Set "Battle stations torpedo" with the intention of trying
to work around the western end of BATBATAN ISLAND. Too dark
to shoot deck guns. Tracking at 8 knots, course 150°T. Looks
like the Japanese saw us surface last night.
Making emergency speed of 17 knots and smoking heavily.
Unless he is in our heavy smoke we have lost him.

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0

— page 246 —
High
Bow
SEA TRUCK
Mast
Sail
(Down)
8 1768
Smoke Pipe
Faded Insignia
Very Prominant Deck House
[HANDWRITTEN: Hanging over stern
Fendor or fish net?]
σ

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U.S.S. NARWHAL
(B) NARRATIVE (Continued):
0500
Sighted a small vessel bearing 160°T., distance 10,000
yards. Ship contact No. 3.
0506
Battle stations, surface. Would like to have our trim dive
out of the way.
0510
Can now make out a small sea truck towing a motor launch.
Had a Japanese flag painted on deck house.
0520
Commenced on ill-considered approach but perhaps it helped
the guerillas ashore. We have not made a trim dive, are
close to our unloading point, close to enemy airfields, sun-
rise at 0527. All hands have been up all night and done a
tremendous amount of work. Also, the enemy probably knew of
our presence and sent these two boats to investigate. The
previous contact was probably a similar type. When the range
had closed to about 5000 yards we were sighted because the
target speeded up and cast off the motor launch which ran away
at high speed. This motor launch was long and low with what
appeared to be an armoured trunk forward for a machine gun
and another aft for the coxswain.
0532
Opened fire. Fire was poor with erratic pointing and errors
in spotting. Checked fire twice to let smoke clear from
target. Some high capacity shells did not explode on hitting,
perhaps all fuzes weren't set properly. Known hits were
obtained but little damage resulted. At this range (4000 yards)
almost every shot should have hit and target should have been
a burning wreck.
0542
Ceased fire. Expended 53 rounds of 6" high capacity ammunition.
Due to poor shooting and poor situation broke off action and
commenced opening range.
0602
Secured from Battle stations, surface.
0623
Target below horizon. Submerged. Took 2 minutes and 46
seconds to get periscope shears under. Decided to stay
submerged all day so that all hands could rest after a
strenuous night. After ammunition hoist out of commission.
1200
Position Lat. 11-12 N., Long. 121-31 E.
1848
Surfaced. Repaired stern plane motor contactor panel.
22 June
0357
Radar contact, bearing 288°T., distance 11,000 yards. Ship
contact No. 4, Torpedo Attack No. 1. Tracked on base course
070, speed 14. Can occasionally see target at 10,000 yards.
Decided it was a loaded tanker, similar to KIYO MARU, p. 275
of ONI 208-J (7250 tons). Identification difficult, masts
not seen. The stack was on the threshold of visibility and
a dim blue light was seen aft near the top of the stack.
0434
Not speed advantage enough to work ahead for daylight approach
to started in for an attack at radar depth.
0446
Submerged to radar depth, range about 5000 yards. Cannot
see target through periscope.
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U.S.S. NARWHAL

(B) NARRATIVE (Continued):
0450
Radar has reported 2 small escorts astern of target. They
have seen or heard us and started to drop depth charges.
Rigged ship for depth charge attack.
0456
Fired four torpedoes, range 2900 yards, angle on bow 80
starboard, gyro angles between 4° and 12° right. Can just
see target through periscope. Large impulse bubbles re-
sulted though poppets worked.
0457
Swinging left. Nearest of 2 escorts 1000 yards. Went deep
and commenced silent running. Though no explosions were
heard in the conning tower which sounded like torpedo ex-
plosions, the torpedo room heard two explosions at 2 minutes
and 45 seconds. The Executive Officer at the periscope re-
ported the target obscured for a short period of time by
smoke but saw no flash. It is believed that two hits were
made near the bow. Times are most probably in error because
exact range was not known as a result of the broken range
unit in the SJ radar. This might also have made our speed
check too high as the paper strip on the radar scope is be-
lieved to be somewhat long at high ranges and short at low
ranges.
0502
Last of 10 depth charges, none close. Screws gradually
faded out including the heavy screws of the tanker.
0630
Started back up. It took well over an hour to get to periscope
depth and considerable pumping to get through the density
layer at 200 feet.
0825
Surfaced. Believe tanker was headed for ILOILO and must be
slmost to the coast by now. Set course for SIBUTU PASSAGE
which we can just about make tonight if not delayed.
1000
Sighted considerable driftwood, some garbage and tin cans,
and ran through a large oil slick. Had been in the water
some time. Lat. 8-23 N., Long. 120-51 E.
1159
OOD sighted float plane (PETE) on starboard bow, distance
6 miles, elevation about 3°, while Navigator was taking
LAN sight. Aircraft contact No. 6. Submerged. Don't know
why he didn't see us in glassy sea but perhaps sun glare and
surface haze helped. No bombs.
1200
Position Lat. 8-02 N., Long. 120-41 E.
1316
Surfaced. No. 4 main engine beginning to show signs of
cracked liner.

23 June
0226
Called crew to Battle stations and entered SIBUTU PASSAGE.
Wondering if engines will hold our speed of 15 knots.
0415
Cleared SIBUTU PASSAGE and secured from Battle Stations.
Nothing sighted.
0515
Submerged. Started to change liner in No. 4 main engine.
Found broken piston rings also,

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(B) NARRATIVE (Continued):
1200
1848
2020
2040
Position Lat. 4-26 N., Long. 120-11 E.
Surfaced. Unable to repair after ammunition hoist.
Transmitted NARWHAL serial 4.
Repaired trim pump motor controller.

24 June

0130
0540
No. 2 main engine has a cracked liner. Commenced repairs.
While preparing to make morning trim dive sighted medium
sailboat on horizon. Ship contact No. 5. Avoided.
0541
Submerged. Stayed down to complete repair to No. 2 main
engine.
0827
Surfaced.
1024
Sighted smoke. Can just make out deck house with high
periscope. Angle on bow very small, can't see any masts.
Ship contact No. 6.
1026
Submerged and commenced approach. Was surprised to find
gravity averaged 1.185.
1115
Can now see that the target is of the trawler type, making
little if any way. An occasional puff of heavy greyish
white smoke is emitted suggesting a wood burner. This is
a small ship and looks like a trap. Heavy rain, visibility
low. Considering that we transmitted last night, that this
trawler is almost exactly on course between SIBUTU and BANGKA
PASSAGES in 2500 fathoms of water, and not too far from the
reported submarine base of DAVAO and air bases at MENADO it
looks more like a trap. He hasn't sighted or heard us so
decided to open range.
1200
1346
Position Lat. 3-18 N., Long. 122-45 E.
Surfaced. Still raining. Decided to use SIAOE PASSAGE
because a decoy in the CELEBES SEA could easily mean BANGKA
PASSAGE would be blocked.

25 June

0200
Through SIAOE PASSAGE.
0345
Stern lookout (from engine room force) had a dizzy spell
which the pharmacist's mate diagnosed as lack of body salt.
Relieved him.
0530
Made trim dive.
0954
Radar contact 8 miles, closing to 6½ as the ship was diving.
Aircraft contact No. 7.
1040
While preparing to surface had radar contact 3 miles. Air-
craft contact No. 8. Probably the same plane, not sighted.
1200
Position Lat. 0-59 N., Long. 126-43 E.
1257
Surfaced.

26 June

0535
Made trim dive.

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(B) NARRATIVE (Continued):
0846
Radar contact 18 miles. Aircraft contact No. 9. While
watching this contact to see if it would close, at
0847
Lookout sighted a biplane about 8 miles away in a climbing
turn. Submerged. Aircraft contact No. 10. A two plane
team isn't a bad idea.
1035
All ready to surface. Radar contact 20 miles, closed to 18.
Went to 90 feet. Probably same plane as before.
1200
Position Lat. 3-01 S., Long. 125-28 E.
1319
Surfaced.
1338
OOD sighted BETTY bomber dead ahead about 10 miles away,
flying above first layer of clouds. Aircraft contact No. 11.
Submerged. Plane did not turn toward us. A happen so or
some gambit tactics?
1448
Surfaced.
27 June
0053
Sighted light in small boat. Avoided. Lat. 6-21 S., Long.
126-02 E.
0527
Made trim dive.
0930
Radar contact, 9 miles, closing. Submerged. Aircraft
contact No. 12.
1034
Surfaced.
1200
Position Lat. 6-44 S., Long. 127-20 E.
1705
Radar jamming started on SD radar. Lat. 7-25 S., Long.
127-20 E. ROMANG ISLAND was 38 miles to the west, DAMAR
ISLAND 38 miles east, MOA ISLAND 47 miles south, Eastern
TIMOR 80 miles southwest and SERMATA ISLAND 70 miles south-
east. ROMANG can probably be ruled out as a source because
it was passed abeam (29 miles) at 1530. No other submarines
were in the vicinity so far as known. With sunset at 1720
and jamming ending at 1740, no reason for this action can
be seen unless it was an aircraft warning radar on the same
frequency and only used during the sunset period. No inter-
ference was obtained with the SJ when it was started at 1800.
Information obtained in PORT DARWIN indicates possibility of
an Allied radar jamming plane in this area. However, our
radar technician states that this jamming fits the character-
istics of the enemy land based jamming equipment described
in Commander Submarines, SEVENTH FLEET, secret serial 00179
of 9 June 1944.

28 June
0521
1200
1449
Made trim dive.
Position Lat. 10-06 S., Long. 129-15 E.
Started battery discharge at 6 hour rate.

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