U.S.S. GRENADIER (SS-210) — war patrol report SS-210_GRENADIER.pdf

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OPERATOR [HANDWRITTEN: LEO]

DATE [HANDWRITTEN: 10-3-78]

THIS MICROFILM IS
THE PROPERTY OF
THE UNITED STATES
GOVERNMENT

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[HANDWRITTEN: GRENADIER (SS-210)
WWII PATROL FILE
ALL MATERIAL ON THIS REEL IS DECLASSIFIED
FOR DECK LOG MAY 1941 - FEBRUARY 1942 AND
OCTOBER 1942 - JANUARY 1943 CONSULT NATIONAL
ARCHIVES WHICH HAS CUSTODY.

J.A. KOONTZ]

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Office of Naval Records and History
Ships' Histories Section
Navy Department

HISTORY OF USS GRENADIER (SS 210)
(Also: SS-525)

USS GRENADIER (SS 210), a 1,475-ton fleet submarine of the "G" Type
of 1939-1940, was built at the Navy Yard in Portsmouth, New Hampshire,
where her keel was laid on 2 April 1940. The sub was launched on 29
November 1940 with Mrs Walter S. Anderson, wife of Rear Admiral Walter
S. Anderson, USN, President of the Board of Inspection and Survey,
Navy Department, as the official sponsor.

GRENADIER was placed in commission on 1 May 1941 under the command
of Commander Allen Raymond Joyce, USN.

The submarine was 307 feet in overall length, 27 feet abeam and
had a surface speed of 21 knots. In addition to ten torpedo tubes --
six forward and four aft -- she carried one 3-inch anti-aircraft deck
gun and two anti-aircraft machine guns.

After usual shakedown exercises, held in Atlantic waters, GRENADIER
sailed for the Pacific and on 4 February 1942 left Pearl Harbor on
her first war patrol. This patrol was conducted in the coastal waters
of Honshu, Japan, chiefly off Tokyo Bay and in the traffic lanes to
the Bonin Islands.

In the early morning of 26 February, an overzealous trimming-down
submerged the submarine prematurely and, at the time, the lower conn-
ing tower hatch was shut but the water in the conning tower raised
waist-deep; before the upper hatch could be closed. This resulted in
flooding out the trim and drain pumps, the low pressure blows, main
hydraulic pump and one air compressor; and necessitated complete hand
operation in diving until repairs could be effected.

About dawn on 1 March, while patrolling between Miyaki Shima and
Nojima Saki, a plane was heard but never seen. GRENADIER only managed
to attain a depth of 35 feet before the bomb went off but, judging
from the effect, the plane must have had as much trouble seeing the
submarine as GRENADIER did the plane.

That afternoon, just north of Inuboe Saki Light, GRENADIER probably
went closer to the mainland of Japan than had any allied vessel since
the beginning of the war. She made a submerged attack on a 5,000 ton
freighter which was only one mile from the beach -- and GRENADIER was
on the beach side of the freighter. A spread of four torpedoes re-
sulted in one hit, but the freighter was not observed to sink.

This first patrol ended on 23 March 1942 at Pearl Harbor. Command-
er Joyce was relieved as commanding officer of the submarine by Com-
mander Willis Ashford Lent, USN, at the end of this patrol.

— page 4 —
- 2 - USS GRENADIER (SS 210)
Also (SS 525)

Her second war patrol commenced after a refit at the Submarine
Base, Pearl Harbor, when GRENADIER headed toward Nagasaki, Japan, on
12 April 1942. This patrol proved both more interesting and profitable,
and resulted in a Gold Star in lieu of a second Navy Cross being a-
warded to the commanding officer, Commander Lent.

Shortly after midnight on the morning of 25 April, the sub's radar
picked up a plane five or six miles distant. As she began a quick
dive, the plane was sighted at an estimated altitude of 1,500 feet,
heading for the ship. Two bombs exploded as the plane passed over and
later another was heard in the distance. Other than a shaking up, the
submarine was not harmed.

On the night of 1 May 1942, off Danjo Gunto in the light of a
bright moon, a large three-island freighter of the AFRICA MARU class
was sighted about four miles away. A submerged attack was made and a
spread of four torpedoes was fired. Two hits resulted in the first
sinking for GRENADIER.

During the late afternoon of 8 May 1942, GRENADIER intercepted a
south-bound convoy of six medium freighters and the TAIJO MARU, a
large merchant vessel of 14,900 tons, heavily escorted by aircraft and
destroyers. The TAIJO MARU was, of course, picked as the first tar-
get and a submerged approach was terminated with firing a spread of
four torpedoes. With two hits registering, the TAIJO MARU went to a
watery grave -- and GRENADIER underwent an uncomfortably prolonged
depth charging. Actually, in this attack, the submarine had been
spotted and bombs were dropped before her first torpedo had been fired.
The depth charges and bombs continued for 23 hours with about 70
being dropped close aboard and many more in the distance. A propeller
shaft was so damaged that it squeaked causing sufficient noise to make
the submarine easy prey for the destroyers. Lights were knocked out,
leaks developed, and the superstructure was twisted around considerably.
The Japanese acknowledged the loss of the TAIJO MARU.

On 14 May, the patrol area was shifted and GRENADIER sailed to
Bungo Suido through the narrow Van Bemen Strait, making a brilliant
run at 17 knots through poor visibility, running from one patrol ves-
sel to another. On 25 May the sub was ordered back to Midway. Unfor-
tunately, the sector assigned to GRENADIER made it impossible for her
to participate in any fighting in the Battle of Midway, and on several
occasions she was forced to deep submergence by planes.

The report of the second war patrol which ended on 10 June 1942,
contained the following endorsement: "The GRENADIER returned from a
very successful patrol in enemy-controlled waters and remained at sea
for 59 days. In spite of strong anti-submarine measures, including
three long depth charge attacks, the commanding officer returned his
ship without damage to material or personnel...... The commanding
officer covered his area very thoroughly but due to weather conditions
and not operating in shipping lanes, only three contacts with enemy
shipping were developed."

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- 3 - USS GRENADIER (SS 210)
                                                              Also (SS 525)

          GRENADIER's third war patrol commenced on 13 July 1942 from Pearl
Harbor. Commander Lent had been relieved as commanding officer by
Lieutenant Commander Bruce L. Carr on 18 June 1942.

          Forty days were spent on station around Truk and Tol Island. On
30 July, three torpedoes were fired and sank a large tanker of 15,000
tons. Two hits were made on the tanker, which immediately aroused the
escorting destroyers and they proceeded to drop 14 depth charges very
close aboard which shook up GRENADIER severely. Later these destroy-
ers pleased the sub's crew by sitting right over their nest without
laying any eggs.

          Vice Admiral C. A. Lockwood, then Commander Submarines, Southwest
Pacific, endorsed the third war patrol report as follows: "The attack
on the tanker was well executed and the GRENADIER efficiently evaded
without damage a subsequent depth charge attack by escorting destroy-
ers....The sinking of the 15,000-ton tanker was confirmed by other
sources."

          Another endorsement read as follows: "The attack on the large
tanker was vigorously and efficiently carried out. The commanding
officer successfully evaded the severe depth charging that followed.
The numerous sightings of aircraft and lack of enemy air attacks in-
dicates an alertness and high state of training." There were 41 air
attacks made on this patrol, which terminated on 18 September 1942 in
Freemantle, Australia.

          For her fourth war patrol, GRENADIER proceeded to the approaches
to Haiphong, Indo-China. The main object of this patrol was to lay a
minefield of 32 mines off Haiphong, but eight torpedoes were carried
to conduct an offensive patrol against enemy shipping in the South
China Sea between Latitude 12 and 18 degrees north.

          The mine plant was successfully executed at night as GRENADIER
dodged junks and islands in water which was, in parts, as shallow as
26 feet and laid one of the first submarine minefields of the war.
The fifth mine exploded prematurely, 45 minutes after planting.

          Shortly after midnight on the morning of 12 November, a surface
approach was made on a freighter near Cape Varella. It was believed
that the target course and speed had been well checked and the bridge
personnel saw the torpedo tracks run under the freighter. The third
and last torpedo caused a large commotion under the enemy's bridge as
though its air flask had exploded. At this time the freighter doused
a small light which had been showing and turned in toward the beach.

          At 0657 the same morning, a corvette was sighted at close range
in poor visibility. A dive was made, the approach started, and the
first look revealed the enemy ship to be at a range of less than 1,000
yards and coming in at high speed. Depth charges were dropped close
aboard forcing GRENADIER to the bottom with considerable force, carryin

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- 4 - USS GRENADIER (SS 210)
Also (SS 525)

away both sound heads. Salt water was taken in the after battery com-
partment causing chlorine gas to be formed which caused much suffering
among the crew, but with no permanent casualties.

Upon surfacing in the evening of 16 November, the handicap of hav-
ing no sound gear was illustrated. The visibility was poor and a cor-
vette was sighted close aboard immediately after surfacing. During
the subsequent depth charge attack, everyone was wishing that the sound
gear was still intact so that the tables could have been turned.

Among the incidents of this patrol GRENADIER sighted a diplomatic
ship and a hospital ship near the Gulf of Tonkin. Then, at 0728 on
30 November the submarine had the heart-breaking experience of sight-
ing an aircraft carrier of the RYUJO class at 8,000 yards and a heavy
cruiser and destroyer at 15,000 yards heading south in a heavy rain
squall in the Strait of Makassar. When sighted, the ships were at
high speed with an angle on the bow of at least 80° starboard. Since
it was impossible to close, GRENADIER surfaced to pass on the contact
report to Radio Darwin. This patrol ended in Fremantle on 10 December
1942.

During the refit period at Fremantle Lieutenant Commander Carr was
relieved by Lieutenant Commander J. A. Fitzgerald, USN, as the sub-
marine's commanding officer.

The fifth war patrol of GRENADIER began on 1 January 1943 and was
conducted in the approaches to Soerabaja, Makassar, and Balikpapan,
the vicinity of Saleier Strait, Pulassi Island, and the northern en-
trance to Bali Strait.

At 0620 on the morning of 10 January in the northern approaches
to Soerabaja, GRENADIER battle-surfaced on a 60-ton, two-masted schoon-
er flying the Jap merchant flag. The schooner was sunk by gunfire
from the 3-inch and automatic weapons.

In the afternoon of 12 January in the same area, a steamer of 750
tons was sighted towing a well loaded hulk barge of about 500 tons.
The seas and wind were sufficient to hold the speed down so that the
submarine was able, at 1705, to join the formation as third ship in
column waiting for darkness. After nightfall, she surfaced, started
mounting the machine guns, and closing distance.

It was necessary to lash 7x50 binoculars to the 3-inch gun to use
as sights since the regular sights had flooded and at 2042 fire was
opened on the steamer. Seventeen minutes later the cease fire order
was given with the ship afire and beginning to settle. A few minutes
later she opened fire on the barge, ceasing after three minutes to
watch both enemy vessels sink.

On 22 January 1943, after ascertaining with a lead line (the
fathometer was out of commission) that there was enough water in which

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- 5 - USS GRENADIER (SS 210)
                                                                Also (SS 525)

to dive, a convoy consisting of two 7,000-ton cargo vessels escorted
by a destroyer and a patrol vessel was sighted hugging the coast just
south of Balikpapan. The approach was made and three torpedoes
were fired at the leading vessel and two at the second. One hit was
made on the first ship and two on the latter. The counter-attack by
the enemy escorts with depth charges in about ten fathoms of water pre-
vented the skipper from observing the results of the hits. Several
hours later, a quick look showed only the escort vessels, oil on the
surface, and large column of heavy black smoke.

On the last day of January, off the entrance to Makassar City in
the Celebes, GRENADIER made the unfortunate exchange with a small
enemy steamer, of three torpedoes for some depth charges -- neither
having any effect.

The commander Task Force 51, endorsed the report of the fifth war
patrol as follows: "The GRENADIER operated for a considerable part of
this patrol in relatively shallow water in spite of the handicap re-
sulting from the failure of the fathometer -- the patrol throughout
was marked by a spirit of aggressiveness which, with additional ex-
perience, will produce maximum results on future patrols."

Commander, Submarine Squadron 6 said, "Assigned patrol areas were
thoroughly covered by the GRENADIER; determined attempts were made
with torpedoes and gunfire."

GRENADIER was credited with inflicting the following damage on the
enemy during this patrol: Sunk -- 1 schooner, 60 tons; 1 tug, 750
tons; and 1 barge, 500 tons. Damaged -- 2 freighters totaling 14,000
tons.

GRENADIER's sixth war patrol began on 20 March 1943 from Fremantle,
Australia. She headed for the Andaman Sea, from the Gulf of Martaban
down through the Mergui Archipelago to Malacca Strait, to investigate
and destroy enemy shipping. GRENADIER was the first American sub-
marine to be in this area. Pictures were taken of the harbor at the
Island of Sabang.

On the night of 6 June, a small freighter of about 2,000 tons was
sighted off Puhket Island. A surface torpedo attack resulted in her
damage and, to the officers and men on the bridge, what appeared to
be an attempt to beach the vessel. Later information, received from
several different Japanese sources, revealed that this ship had been
sunk. After the explosion, the wounded ship fired on the submarine
with two guns (estimated to be 5-inch) using tracer ammunition, most
of the shells going over GRENADIER or landing in the sub's wake. This
fire was returned until the freighter got too close to the beach.

The next several weeks were uneventful, showing no evidence of
shipping in this area, and a request was made by the impatient
GRENADIER to change to a more fruitful area. At the same time that

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- 6 - USS GRENADIER (SS 210)
                                                                Also (DD 525)

orders were received to shift to Sunda Straits, two freighters of about
3,000 tons were picked up. It being night, a surface attack was com-
menced in bright moonlight but unfortunately GRENADIER was sighted
when she had closed to 2,500 yards. At this time the submarine com-
menced firing with her 3-inch and automatic weapons and the two enemy
ships returned the fire with what appeared to be 5-inch guns. The
commanding officer deemed it advisable to retire and attempt to gain
a position ahead of the ships for a submerged approach in the morning.
However, a slight miscalculation put the freighters, which were using
a high speed and erratic zig-zag plan, out of range when the attack
was resumed.

        It again became necessary for the tenacious GRENADIER to surface
with the intent of sweeping wide around the two ships in order to gain
a position for a submerged attack. At about 0830 on 21 April 1943 a
heavy naval bomber was sighted heading for the submarine. A quick
dive was made and what was estimated as two 1,000-pound bombs exploded
as GRENADIER was passing the 90-foot depth. The explosion was just
above the forward part of the after torpedo room and lights immediately
went out while the boat took a down-angle of about 20 degrees. Power
to the screws was lost, so the Captain ordered to put her on the bot-
tom, which was at about 45 fathoms.

        Gauges were broken throughout the boat and the overhead of the
after torpedo room was found to be stove in to a great extent. The
soft patch and air induction in the maneuvering room were leaking on
the maneuvering cubicle, and the cubicle had been sprung against the
overhead, fusing wires and causing electrical fires in the maneuvering
room. In the after torpedo room there was a tangled mass of torpedoes,
bodies and bunks; but miraculously there were no major casualties
among the men. The thick, strong back by the torpedo loading hatch
was buckled. The hydraulic steering and stern plane gears were put
out of commission, but by the excellent work of Pianka, Machinist's
Mate first class, and Shaw, Machinist's Mate second class, a jury rig
was improvised. The propeller shafts had been warped and there was
considerable leakage around their bearings while the after torpedo
tubes were so warped that it was impossible to operate the tube doors.

        Squads were organized to fight the fire in the maneuvering room
and it finally brought under control, but intermittent fires were con-
tinually breaking out which, along with the leakage, overcame any
progress on repair of electrical equipment.

        Remaining on the bottom all day using emergency lights, without
power to run the air conditioning or air circulating units, and with
the fires using up a great deal of the precious oxygen -- it became
necessary to use carbon dioxide absorbent throughout the boat and to
bleed oxygen into the air from the oxygen flasks.

        GRENADIER surfaced that night and work was continued. As she came
up and the pressure was released against the after torpedo room hatch,

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- 7 - USS GRENADIER (SS 210)
Also (SS 525)

it sprang out to such an extent that it was possible to put a hand
around a portion of the "knife edge."

By this time it was apparent that there was no hope of being able
to repair the submarine sufficiently to get underway, or even be able
to dive again. Therefore, all classified equipment and publications
were destroyed and a fruitless attempt was made to transmit a radio
message telling of GRENADIER's plight and the crew's intention to
abandon ship to the nearby Pilgrim Island.

Shortly after dawn on the morning of 22 April 1943, several ships
were sighted on the horizon, coming in. A Zero headed in on the sub-
marine but 20-millimeter gunfire forced the plane to drop her bomb
several hundred yards short. It could be seen that the plane had been
hit, and subsequent intelligence obtained in Penang, Malay States, re-
vealed that the pilot had been killed and the plane crashed.

At about 0830 the skipper ordered GRENADIER abandoned and all
hatches were left open. The Chief-of-the-Boat, Chief Torpedoman's
Mate Withrow, opened the vents and came topsides to have the decks
submerge under him as the whole crew watched their home, of which
they had become so proud, plummet to the bottom -- and turned to face
the oncoming Japanese vessels with hearts of lead.

After a little more than an hour in the water, the entire crew of
GRENADIER was captured by a Japanese naval escort vessel, a converted
merchant ship of about 2,000 tons, and taken into Penang. There the
Japanese naval forces proved themselves to be nothing human by their
starvation, continual beatings and other torture methods to gain in-
formation from their captives. Time after time the prisoners would
be tortured until they lost consciousness rather than submit to their
captors, who claimed that the crew was still their enemy and acted
accordingly.

This state of being was to continue until the crew reached a
registered camp, at which time they would become prisoners-of-war. It
took some of the men nearly two years to reach this exalted status.

After a week in Penang, Commander Fitzgerald, Commander Whiting
(executive officer), and Lieutenant Commander Harty (communications
officer) were flown to a naval non-registered, interrogation camp in
Ofuna, Japan, run by the Yokosuka Naval Base. Chief Radioman Knutson
was flown to Soerabaja, Java, where he was questioned by German naval
officers, and from them received extremely severe treatment. He was
later flown to the camp in Ofuna.

The remaining members of the crew left Penang in a filthy hold of
a steamer on the 5th of August 1943, and arrived in Singapore two days
later to be interned in a blocked-off portion of an Indian prisoner-
of-war camp in Selitar, just outside the captured English naval base.

— page 10 —
- 8 - USS GRENADIER (SS 210)
                                                                Also (SS 525)

in Singapore. There the men were fairly unmolested but still received
very small rations, no medical care and were required to work in the
naval base. However, by this time not many were able to stand, much
less work.

        These men left Singapore on 26 September 1943 in a hold of the
ASAMA MARU. One man, Electrician's Mate second class L.L. Barker, was
too ill to travel and was left behind, but fortunately joined some
of his shipmates at a later date in Japan. The voyage on the ASAMA
MARU was highlighted by severe mass beatings when the watch would
change -- missing no one. At the end of the trip the prisoners were
put into small launches and taken to a small village near Shimonoseki
on 9 October 1943. Two days later, 29 of these men were taken to the
interrogation camp in Ofuna and later the remaining 41 were interned
in a prisoner-of-war camp in Fukuoka.

        Over the course of the next 15 months, the members of GRENDIER's
crew in Ofuna gradually spread out over the northern part of Honshu
in various prisoners-of-war camps. Few who saw the submarine's crew
after six months of captivity would have believed that many could have
lived; but God was with them and only four died -- all in a camp in
Fukuoka. These four, all fine men, were: Charles Doyle, MoMM1c, USN;
Charles F. Linder, MoMM2c, USNR; George W. Snyder, Jr., MM3c; and
Justiniano G. Guico, StM1c, USNR.

                                DAMAGE TO ENEMY BY USS GRENADIER

First Patrol                      Damaged             1 Freighter, 5,000 tons

Second Patrol                     Sunk                1 Freighter, 9,500 tons
                                                      1 Passenger ship, 14,900
                                                      tons

Third Patrol                      Sunk                1 Tanker, 1,500 tons

Fifth Patrol                      Sunk                1 Schooner, 60 tons
                                                      1 Tug, 750 tons
                                                      1 Barge, 500 tons
                                                      2 Freighters, 14,000 tons

Sixth Patrol                      Sunk                1 Freighter, 2,000 tons
                                                      1 Plane

Total Sunk                                            42,710 tons plus 1 plane
Total Damaged                                         19,000 tons

— page 11 —
- 9 - USS GRENADIER (SS 210)
Also (SS 525)

USS GRENADIER (SS 210) earned four Battle Stars on the Asiatic-
Pacific Area Service Medal for participating in the following opera-
tions:

1 Star/Midway -- 3-6 June 1942
1 Star/Submarine War Patrol, Pacific -- 4 February to 23 March 1942
1 Star/Submarine War Patrol, Pacific -- 13 July to 18 September 1942
1 Star/Submarine War Patrol, Pacific -- 1 January to 20 February 1943

*****

USS GRENADIER (SS 525)

A second Navy ship to be named GRENADIER was authorized by Act of
Congress on 19 July 1940 and her keel was laid at the Boston Navy Yard,
Boston, Massachusetts, on 8 February 1944. USS GRENADIER (SS 525) was,
like the SS-210, named for a family of soft-finned, mostly deep-sea,
fishes having a tapering body and also to perpetuate the name of the
former submarine which was lost due to enemy action in Malayan waters
on 21 April 1943.

SS-525 was christened and commissioned in dual ceremonies at the
Boston Naval Shipyard, Charlestown, Massachusetts, on 10 February
1951. Mrs. John A. Fitzgerald, wife of the commanding officer of the
first GRENADIER sponsored the new ship.

USS GRENADIER (SS 525), sister ship of USS GRAMPUS (SS 523), is
one of a group of streamlined submarines constructed for the Navy un-
der the "Greater Underwater Propulsive Power" (GUPPY) project. The
perfection of the snorkel or breathing apparatus, such as that in-
stalled on GRENADIER, allows increased submerged endurance.

This modernized submarine is 306 feet in length, 27 feet abeam,
has a speed of 20 knots, and displaces 1,570 tons.

USS GRENADIER (SS 525) is attached to the U. S. Atlantic Fleet
with her home port at New London, Connecticut, and home yard at Boston,
Massachusetts.

*****

Compiled: October 1951

— page 12 —
[HANDWRITTEN: 1ST COPY]

SS210/A12
Serial ( 052 )

U.S.S. GRENADIER

C/o Fleet Post Office,
Pearl Harbor, T.H.,
March 23, 1942.

[STAMP: DECLASSIFIED]
From: Commanding Officer.
To : Commander Submarines, Pacific Fleet.

Subject: U.S.S. GRENADIER - Report of First War Patrol.
Period from February 4, 1942 to March 23, 1942.
Area Four.

1. Narrative:

February 4 - Departed Pearl.

February 8 - A Japanese submarine shelled Midway at dusk. This
vessel was due to arrive Midway the next morning, but was not
informed as to the above.

February 9 - Fueled at Midway, and resumed course to Area Four.

February 18 - Began submerged running during daylight, about
600 miles from Honshu. From departure until this date, a trim
dive was made about every other day.

February 23, 1930 Z.T. (King). Lat 34-37.4 N Long 143-11.5 E.
On surfacing sighted glare as from searchlight, bearing 198°.
True. C/C to 000 to charge batteries before investigating;
2030 - lost glare; 2100 C/C to 180, continued on this course
until 2300 but failed to make any contact; resumed course to area.

February 24 - Arrived in area; raining all day, visibility poor,
periscope observations on the hour. Heavy seas and rain at
night, visibility very poor, no Nav. fix, dived 0330.

February 25 - Weather moderated and cleared during the day, peri-
scope observations every half hour. Sea calm, bright moonlight
on surfacing. Sighted Inubo Saki and Katsuura Wan Lights
about 2200.

February 26 - About 0230, while closing coast south of Katsuura
Wan, trimmed down too well and took considerable water down the
Conning Tower hatch, flooding out the trim and drain pumps,
low pressure blows, main hydraulic pump and one air compressor.
About 0300 sighted a light bearing 135 relative, appeared to be
a signal light, probably from a sampan. Dived, working vents
by hand, began restoring flooded machinery to operating condition.
After surfacing at night, ran south toward Miyake Shima. About

[HANDWRITTEN: 40165]
- 1 - ENCLOSURE (A)

— page 19 —
FB5-62/A16-3
Serial: 024
CONFIDENTIAL

From:
To :
Subject:

1.
period of forty-seven (47) days resulted in a total failure.
It is possible, but not probable, that a small 5000 ton freigh-
ter was damaged at the expense of six (6) torpedoes. Such an
expenditure cannot be tolerated against a freighter target that
will sink if hit with one torpedo.

2.
Navigational risks must be carefully considered
by commanding officers. It is believed that determined skill-
ful operation near enemy coasts is possible and will produce
sinkings. If a navigation light is sighted the probability of
shipping being present is good and it should be well worth
while to remain in vicinity of the light.

3.
It is considered that the GRENADIER handled re-
pair of a serious main generator casualty in an excellent manner.
Since this derangement occurred on second day of departure, the
successful use of the generator after repair during remainder
of patrol indicates sound engineering judgement.

4.
The untimely flooding of pump room auxiliaries
soon after entering area was a distracting physical and mental
problem for crew and officers.

5.
Factors of endurance remaining indicate that the
GRENADIER could have remained on patrol for a period of ten to
fourteen additional days. The commanding officer stated that he
returned because he was tired. Commanding Officers must have
confidence and place responsibility in the hands of their
juniors so that they will never be tired.

Copy to:
Comsubron SIX.
GRENADIER.

-8-
SUBMARINE DIVISION SIXTY - TWO
eb
Pearl Harbor, T.H.
24 March 1942

The Commander Submarine Division SIXTY-TWO.
The Commander Submarines, Pacific Fleet.
U.S.S. GRENADIER, War Patrol - Comments on.

The results of the GRENADIER's war effort for a

shipping being present is good and it should be well worth
in in vicinity of the light.

O'LEARY.
[SIGNATURE: F.H. O'LEARY]

ENCLOSURE (B)

— page 20 —
FC5-6/A16-3
Serial 092

CONFIDENTIAL

From: The Commander Submarine Squadron SIX.
To : The Commander Submarines, Pacific Fleet.
Subject: U.S.S. GRENADIER (SS210) - Report of First War
         Patrol.

1. This, the first war patrol of the GRENADIER,
covered a period of 48 days, of which 34 were spent enroute
and 14 were spent on station. According to the report, the
least remaining endurance of the factors affecting the length
of the patrol was fourteen days. No explanation is offered
for the GRENADIER's early return to port.

2. The material performance of this patrol was
very good. The main difficulties encountered were a result
of taking water down the conning tower hatch which cannot be
attributed to defective material. Personnel endurance appear-
ed to be very good, but the patrol was not long enough to be
a good criterion of this factor.

3. The number of contacts made on this patrol was
disappointing as it was thought that this area contained a
large volume of enemy shipping, located, as it is, across the en-
trance to important enemy ports. One attack was made with
doubtful results and the expenditure of six torpedoes. The
torpedo supply does not warrant such a prodigal use of torpedoes.
Torpedoes must be fired to hit and the results must not be
left in doubt. It is believed that this patrol would have
been more productive had the area been exploited more thoroughly.

Copy to:
Comsubdiv 62.
CO U.S.S. GRENADIER.

SUBMARINE SQUADRON SIX
                                                              (6/Mc
                                                    Care of Postmaster,
                                                    San Francisco, California,
                                                    March 24, 1942.

                                                    A. R. McCANN.

-1-                                                 ENCLOSURE (C)

— page 21 —
FF12-10/A16-3(5)
Serial 0321

SUBMARINES, PACIFIC FLEET
Care of Postmaster,
San Francisco, California.
March 27, 1942.

CONFIDENTIAL
From: The Commander Submarines, Pacific Fleet.
To : Submarines, Pacific Fleet.
Subject: U.S.S. GRENADIER (SS210) - First War Patrol -
Report of.
Enclosure: (A) Copy of CO GRENADIER Conf ltr SS210/A12
Ser. 052 of Mar. 23, 1942.
(B) Copy of CSD 62 Conf ltr FB5-62/A16-3 Ser.
024 of Mar. 24, 1942.
(C) Copy of CSS 6 Conf ltr FC5-6/A16-3 Ser.
092 of Mar. 24, 1942.

1. The following are quotations from the Command-
ing Officer's report:

(a) "0300 sighted light bearing 135 relative, appeared to
be a signal light, probably from a sampan. Dived ..
......"

(b) "About 2100 sighted light on port quarter similar to
one seen preceding night. Dived. About 2200, while
ready to surface, sighted another white (all around)
light through periscope, probably a sampan. Opened
out on this light about a mile and surfaced, nothing
in sight".

(c) "Sighted small DD bearing 010 relative, angle on the
bow - 60° port. Dived to make periscope approach,
as moon was behind DD, and speed of DD appeared small.
Some trouble with ship porpoising, and when steadied
down did not see DD, or pick up on sound."

2. These were the only night contacts reported.
Three of the lights sighted were not investigated at all; in
fact, one was deliberately avoided. The destroyer contact,
with destroyer silhouetted in the moon, was ideal for a sur-
face attack. No attempt was made to develop this, but rather,
GRENADIER dived and lost contact.

3. On the return trip, four days from the area,
tops of mast and stack of a merchant vessel were sighted, where-

-1-

— page 23 —
[HANDWRITTEN: 1ST COPY]
DECLASSIFIED
BY [HANDWRITTEN: S/K] NARA DATE [HANDWRITTEN: 11/23/64]

SS210/A12
Serial 39

U.S.S. GRENADIER
U.S.S. GRENADIER - REPORT OF SECOND WAR PATROL
PERIOD FROM APRIL 12, TO JUNE 10, 1942.
TIME ZONES -9(I) AND + 12(Y)

1. Narrative.

April 12 - Underway from Submarine Base, Pearl Harbor in accord-
ance with Commander Task Force Seven, Operation
Order 35-42, escorted by U.S.S. LITCHFIELD. At
2020 (Y) LITCHFIELD headed back for Pearl.

April 14 - At 1040 (X) sighted masts of merchant ship bearing
310°T and heading toward Pearl. Dived and closed
ship which was identified as probably the U.S.S.
THOMAS JEFFERSON.

April 16 - At 0605 (X) sighted Midway Island and established
identification with the signal tower at 0615 (X).
At 0615 (Y) passed U.S.S. C.CHALOT outside the
reef and heading for Pearl. Moored starboard side
to dock at 0642 (Y) and proceeded to fill up with
fuel and water and to effect minor repairs. Under-
way at 1740 (Y) to clear channel before dark. Air
coverage was supplied both on arrival and departure.

April 17- No occurrences of special interest. On April 21
24- began running on one engine part of each day to
conserve fuel as fuel consumption on two engines
was too high.

April 25 - At 1256 (K) in Lat. 30-09 N, Long. 143-08 E
radar picked up an airplane distance 5-6 miles.
Almost immediately thereafter a monoplane bearing
165° and headed for the ship was sighted, estimated
range 4 miles, altitude 1500 feet. Made a quick
dive to 145 feet and while passing 90 feet heard
explosions of two bombs. At 1336 heard explosion
of a third bomb some distance away. Surfaced after
dark and continued on way. Skies were clear and
the sea glassy smooth all day.

April 26 - Ran submerged during daylight hours due to close
proximity to Tori Shima in the Southern Island
Group.

- 1 - ENCLOSURE (A)

[HANDWRITTEN: 41240]

— page 24 —
DECLASSIFIED
Subject: U.S.S. GUDGEON - Second War Patrol - Report of -
April 29 -

At 0445 (I) radar indicated nearest island 11
miles. Dived to await daylight and fix position.
At 0600 made landfall and fixed position about
8 miles east of Mokano Shima. Proceeded sub-
merged into area via Mokano Shima Suido. Con-
siderable difficulty was experienced with curr-
ents in this passage. Considering today as the
first day in the area the time spent enroute was
16 days. Surfaced at 2005 and set course for
Kusakaki Shima. At 2152 made first sampan contact
in the area. Due to the excellent visibility
with a full moon dived and closed to investigate.
Believed it to have been a patrol vessel. Lost
contact at 2245 and surfaced. Rounded Kusakaki
Light and set course for Danjo Gunto.

Day 1 -
Contact 1 While patrolling submerged off Danjo Gunto made
contact with six sampans during the day all
believed fishing. Upon surfacing at 2040 sight-
ed light of two sampans on the port quarter and
a ship bearing 160°T, distance about 4 miles.
Because of the bright moon, dived and conducted
a submerged approach on the ship, a large three
island freighter, estimated 9,000 tons. Attack-
Attack 1 ed and sank this ship. Continued patrol to
the northward.

Day 2 - At 0355 sighted luminous exhaust ring of low
flying plane and dived.

Day 3 - At 0626 picked up a small trawler which passed
Contact 2 close aboard. Did not attack due to small size,
about 50 tons. At 0822 sighted masts of a small
Contact 3 single stack freighter, estimated 1,500 tons,
bearing 262°T, zigzagging on a base of about
060°, range 12,000 yards. Made an approach but
failed to reach favorable firing position.
This vessel may have been the "ship" reported
by GUDGEON. At 1150 sighted a warship tentatively
identified as a PG of the Uji Class. Was unable
to close for an attack due to large angle on
bow and range.

Contact 4 At 2330 broke off patrol of northern part of area
Day 4 - and set course to the southward in hopes of
intercepting enemy ships reported by Command Force
7 to be concentrating in Kagoshima Bay.

- 2 - ENCLOSURE (A)

— page 27 —
DECLASSIFIED
Subject: U.S.S. GRENADIER - Second War Patrol - report of.

May 25-30 Con- made repairs to #1 electric still and renewed
t'd one cylinder liner in #3 engine.

May 31 - At 0400 (Y), arrived on station and took up
          patrol, running submerged during daylight.

June 1 - Patrolling on station. At 0930 (Y) sighted
          PBY plane patrolling on north westerly course
          from Midway. Completed repairs to #3 engine
          and put it back in commission.

June 2 - At 0045 (Y) set course 225°T, shifting station
          in accordance with despatch instructions to
          patrol sector bearing 290°-310°T from Midway
          and to remain within 20 miles of center of
          sector chord. Arrived on new station and
          took up submerged patrol at 0420 (Y). Sighted
          PBY plane on patrol at 0651 and 1440 (Y).

June 3 - Patrolling on station. At 0645 (Y) sighted a
          PBY plane patrolling on northwesterly course,
          well clear.

June 4 - Patrolling station. About 0615 (Y) intercepted
          plane contact report on enemy. 2CB's and 1LB,
          bearing 320° distance 170 miles from Midway,
          course 135°T, speed 25 knots. Since this
          force was already beyond us, continued submerged
          patrol looking for other enemy units. At 0744
          sighted unidentified aircraft bearing 043T on
          southwesterly course. Then plane turned and
          headed toward GRENADIER went to deep submergence.
          At 0837 surfaced and proceeded toward Midway
          but was chased down by unidentified plane flying
          toward ship at 0855 (Y). When area was clear of
          aircraft, surfaced and continued on course toward
          Midway, hoping to intercept retiring enemy
          units. At 1420 (Y) changed course to 090T passed
          about 60 miles north of the island after inter-
          cepting a despatch from U. PORTLAND that she
          had been attacked 150 miles north of Midway.
          This was the first indication received as to
          where the action was taking place. At 1539 (Y)
          was forced down by large seaplane, probably a
          PBY, flying toward the ship. Continued surface
          running when area was clear. At 2030, in accord-
          ance with instructions from ComTaskForce 7, set
          course for new patrol station on the 100 mile
          circle from Midway, the sector bearing 290-300T.
          Arrived on station at 2355 (Y).

- 5 - INCLOSURE (A)

— page 32 —
[STAMP: DECLASSIFIED]
U.S.S. GRENADIER - Second War Patrol - Report of.

7. Particulars of Attacks.
No. Torpedoes :Firing          :Enemy:Point Est. :Offset:
Fired         :Track           :Draft:Speed:of aim :Angle
Attack #1
4             :40 sec. :10MS :130 :24 :10 :Stack         :0
              : 8 min. :11MS :130 :24 :10 :Stack         :0
              : 2 min. :11MS :Approx24 :18-20:10 :"             :0
              : 1800           :feet :0 :"             :0

Attack #2
4             :1085 :1460 :24 :18-24:10 :Fwd.          :2 L
              :1145 :1430 :28 :feet :"             :0
              :1173 :1420 :28 :10 :"             :0
              :1223 :1410 :24 :10 :"             :2 R

Torpedo Performance: Results:             Evidence of sinking:
Attack #1
:First torpedo ran :First Torpedo       :Smoke seen aft, fire is
:normally          :a definite hit.     :issuing from
:Performance of    :Second was not      :stack and ship settling
:others unknown as :heard but           :in sight upon
:all should have   :have hit two        :stopped when hit. Not
:hit               :were misses         :surfacing one hour after
                                        :attack.

Attack #2
:Torpedoes 1&4     :From strong explo-  :No evidence other than
:functioned normally:sions heard        :hits and the prolonged
:were not hits     :were definite       :depth charging
:was due to failure:should have been    :which followed the att-
:of magnetic explod-:hits               :ack. An old ship
:ers to function                       :of this type probably
                                        :could not survive
                                        :two or more torpedoes.

- 10 -
ENCLOSURE (A)

— page 40 —
FB5-62/A16-3
Serial 04A
[STAMP: DECLASSIFIED]
From: The Commander Submarine Division SIXTY-TWO.
To : The Commander Submarines, Pacific Fleet.
Subject: U.S.S. GRENADIER - Second War Patrol - Comments. on.

SUBMARINE DIVISION SIXTY-TWO
Care of Postmaster, eb
San Francisco, California,
June 11, 1942.

1. The GRENADIER has returned from a very successful
patrol in enemy controlled waters and remained at sea for fifty-
nine days. In spite of strong enemy anti-submarine measures,
including three long depth charge attacks, the commanding officer
returned his ship without damage to material or personnel.

2. It is noted that the radar gave very good results
and warned of the approach of aircraft. The commanding officer
covered his areas very thoroughly but due to weather and not
operating in the shipping lanes only three contacts with enemy
shipping were developed. Operations in the vicinity of important
lighthouses as O Shima, Me Shima, Jusakaki Shima and Marato
might produce more enemy contacts. In patrolling in the open
sea it is believed that the courses of patrol should be along
the estimated shipping routes such as Straits of Formosa-
Shimonoseki, Nagasaki-Straits of Formosa and Yokohama-Straits of
Formosa rather than normal to those tracks.

3. It is reported that two torpedoes fired at the
Taijo Maru failed to detonate when they went under the target.
Four commanding officers of this division have reported apparent
failures of the Mark 6 exploder. Disarming of the counter-mining
device either may or may not eliminate failures. In the future,
it is strongly recommended that torpedoes be set so as to run
between the keel and two feet less than the estimated draft of
the vessel attacked. This procedure should cause the torpedo
to be just as effective as directly under the target and might
eliminate the reported failures.

4. The GRENADIER is credited with the following
damage:
| Sunk | Vessel | Tonnage |
| 1 | Freighter (Africa Maru Class) | 9,500 |
| 1 | Taijo Maru | 14,900 |
| | | 24,400 |
The Japanese acknowledged the loss of the Taijo Maru.

5. The GRENADIER returned to port with the officers
and men in the highest state of morale and health. The Division
Commander congratulates the commanding officer, officers and men
of the GRENADIER for their excellent performance.

Copy to:
Comsubron 6, GRENADIER - 1 - F. M. O'LEARY.
ENCLOSURE (B)

— page 41 —
FF12-10/A16-3(5)
Serial 0688
COMSUBPAC PATROL REPORT NO. 35
U.S.S. GRENADIER - SECOND WAR PATROL
[STAMP: DECLASSIFIED I A L]

From:
To :
Subject:

Enclosure:

1.
gratifying.

2.
the statement made in paragraph 3 by Commander Submarine Division
Sixty-Two regarding failures of the Mark 6 exploder. The Com-
manding Officers referred to are as follows:

(a) GUDGEON - Commanding Officer stated one torpedo surely
passed under target without exploding. The submarine in
first case was at a range of at least 1200 yards from tar-
get. Commanding Officer stated that the wake of torpedo
was seen to pass under the ship aft of the stack. By the
Commander Submarines, Pacific Fleet - This was a miss
ahead. The submarine in second case was at a range of
2000 yards from target at periscope depth. Commanding
Officer stated that the second torpedo fired was seen to
pass under the target. By the Commander Submarines,
Pacific Fleet - It is believed to be almost impossible to
determine from periscope depth at a range of 2000 yards
from target that a torpedo passed under the target.

(b) TROUT - Commanding Officer makes no mention in patrol
report of torpedoes being seen to run under targets and
failing to explode.

(c) TRITON - Commanding Officer states that one torpedo
set to run at 30 feet passed under the target (which was
dead in the water) and did not explode. By the Commander
Submarines, Pacific Fleet - With torpedo running at such
a depth and knowing definitely that torpedo passed under
target, it is highly probable that the anti-countermining
device locked and did not unlock thus preventing the
exploder from functioning.

[HANDWRITTEN: 1]
- 1 -
SUBMARINES, PACIFIC FLEET

Care of Fleet Post Office;
San Francisco, California,
June 18, 1942.

[STAMP: RECEIVED S-C FILES
Room 2055
[HANDWRITTEN: JUL 4 1942]]
[HANDWRITTEN: File]
[HANDWRITTEN: A16-3(2)/S5210]

The Commander Submarines, Pacific Fleet.
Submarines, Pacific Fleet.
U.S.S. GRENADIER (SS210) - Report of Second War
Patrol.
(A) Copy of subject report.
(B) Copy of Comsubdiv 62 Conf. ltr. FB5-62/A16-3,
Serial 04A of June 11, 1942.

The results obtained on this patrol are highly

It is impossible to accurately prove or disprove
Sixty-Two regarding failures of the Mark 6 exploder. The Com-
manding Officers referred to are as follows:

— page 44 —
[HANDWRITTEN: 1ST COPY]

U.S.S. GRENADIER
September 18, 1942.

SS210/A16-3
001
S DECLASSIFIED

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

Subject: War Diary of Third War Patrol Report.

Enclosure: (A) War Diary, Period July 13, 1942 to September 18,
1942.

1. Enclosure (A) is forwarded herewith.

[SIGNATURE: B. L. Carr]
B. L. CARR

[STAMP: DECLASSIFIED ART. 0445, OPNAVINST 5510.1C
BY [HANDWRITTEN: OP09B9C] DATE [HANDWRITTEN: 5/26/72]]

[STAMP: DECLASSIFIED]

[HANDWRITTEN: 43544]

— page 45 —
U.S.S. GRENADIER

S E C R E T
U.S.S. GRENADIER - Report of 3rd War Patrol
Period from 13 July 1942 to 18 September 1942.
Area 15. Operation Order 61-42.

1. NARRATIVE

July 13 Underway in company with USS BREZE and SILVERSIDES. Made
Trim Dive and submerged to 310 feet to check tightness.
Accompanying ships returned to Pearl after dark.

July 15 Sighted PBY Patrol Plane
1200 (X) (Air Contact #1)

July 17 Crossed 180th Meridian.
1320(Y)

July 18 Held battle surface and fired 5 rounds from 3" gun for
training.

July 20 Submerged during daylight to avoid detection while enterin
the Marshalls.
2124 (M) Passed between Wotje and Maloelap Atolls.

July 21 Because of apparent lack of air patrol decided to remain
on surface in area between Radik and Ralik Chains.
0953(M) Made sight and radar contact with unidentified plane. Made
quick dive to 150 feet. Ten minutes later returned to
periscope depth and set continuous periscope watch. (Air
Contact #2).
1200 (L) Surfaced for latitude sight - submerged again - total time
90 seconds.
2222 Passed Lib Island 6 miles to port.

July 22 Lat. 08-03N, Long. 165-31E. Sighted Army Scout Bomber
0707(L) bearing 205°T, distance 7 miles. (Air Contact #3) - Made
quick dive.
0845(L) Surfaced.

- 1 -

— page 46 —
U.S.S. GRENADIER

S E C R E T

U.S.S. GRENADIER - Third War Patrol - Report of.

July 23- Remained on surface - nothing sighted.

July 24- Submerged due to unfavorable cloud conditions and proximity
1021 (L) to Nomoi Island.
1625 (K) Surfaced.

July 25-
1015 (K) Entered assigned sector of area.
1500 (K) Dived for training and to avoid detection. Tol Island
bearing 045°T, distance 100 miles.

July 26-
0320 (K) Sighted Tol Island bearing 052°T, distance 35 miles.
0500 (K) Commenced patrol at periscope depth.
0736 (K) Sighted seaplane, Nakajima Type 97 (Air Contact #4)
1030 (K) Sighted patrol plane Reconnaissance Type 9 K-1 Hiro which
appeared to be landing between Fefan, Moen and Dublon
Islands. (Air Contact #5)
1525 (K) Sighted large sampan (Ship contact #1)

July 27- Uneventful.

July 28-
1011 (K) Sighted catcher boat of Tama Maru Class lying off Aulap
Pass. (Ship contact #2).
1152 (K) Sighted twin engine flying boat landing inside reef
opposite Ollan Island (Air contact #6)
1200 (K) About 2.5 miles south of reef took pictures of Tol and
Ollan Islands.
1215 (K) Sighted Mitsubishi Type 96 Heavy Bomber (Air Contact #7)
1322 (K) Sighted smoke inside reef. Sighted unidentified plane
landing on either Fefan or Dublon Islands (Air Contact #8).
1400 (K) Sighted what appeared to be a submarine inside reef.
(Ship contact #3).

- 2 -

— page 69 —
SUBMARINE DIVISION SIXTY-TWO

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

FB5-62/A16-3

Serial 00-1

S-E-C-R-E-T

FIRST ENDORSEMENT to
CO U.S.S. GRENADIER War
Diary period from 7-13-42
to 9-18-42.

From: The Commander Submarine Division SIXTY-TWO.
To : The Commander in Chief, U.S. Fleet.
Via : (1) The Commander Submarines, SOUTHWEST PACIFIC.
(2) The Commander U.S. Naval Forces, WESTERN AUSTRALIA.
(3) The Commander Submarine Squadron SIX.

Subject: War Diary - U.S.S. GRENADIER - Period from 7-13-42 to
9-18-42 - Comments on.

1. This patrol covered a period of sixty-seven days of which
forty were spent in the vicinity of the Truk area. It was the first patrol
of the present commanding officer.

2. Of the twenty-eight surface contacts, seven were with sampans
and eleven with catcher type patrol craft. The commanding officer did not
attempt to sink the latter because he believed his torpedoes could not be set
to run above twenty feet. When possible enemy craft of all kinds must be
vigorously attacked with any means available. The deck gun must be kept in a
condition of readiness.

3. The one attack on the large tanker was vigorously and
efficiently carried out. The commanding officer successfully evaded the
severe depth charging that followed. The numerous sightings of aircraft and
the lack of enemy air attack indicates an alertness and high state of training.

4. The GRENADIER returned in an excellent material condition.
The morale, health and appearance of the officers and
crew, with one exception, was excellent. The patrol was terminated by the
operation order.

5. The Division Commander congratulates the commanding officer,
officers and crew of the GRENADIER on another job well done. It is recommen-
ded that the GRENADIER be credited with the following damage on the enemy:

SUNK - Either one 10,000 ton or larger tanker, by two hits
from a three (3) torpedo spread.

[SIGNATURE: F. M. O'LEARY.]

— page 70 —
FC5-6/A16-3
Serial 00-12

S-E-C-R-E-T

SECOND ENDORSEMENT to
CO USS GRENADIER War
Diary period from
7/13/42 to 9/18/42.

SUBMARINE SQUADRON SIX
Care of Fleet Post Office,
San Francisco, California,
September 30, 1942.

(6)/OL

From: The Commander Submarine Squadron SIX.
To : The Commander-in-Chief, U.S. Fleet.
Via : (1) The Commander Submarines, Southwest Pacific.
        (Commander Task Group 51.1).
      (2) The Commander U.S. Naval Forces,
        Western Australia.
        (Commander Task Force 51).

Subject: U.S.S. GRENADIER - War Diary of Third War Patrol.

1. Forwarded, concurring in the comments of the Division
Commander. This patrol was made incident to the transfer of the GRENADIER
from Submarines, Pacific Fleet, to Submarines, Southwest Pacific.

2. Material performance during this patrol is considered
to have been excellent. The few defects specifically mentioned by the Com-
manding Officer are susceptible to easy correction by the tender and relief
crews and the GRENADIER will be in all respects ready for another patrol
after a short tender refit.

3. A large number of contacts were made with aircraft
and various types of patrol vessels. At least one "catcher" type patrol
vessel was observed to carry a small plane; several sampans, presumably
patrol vessels, were painted black.

4. This is the first patrol conducted by the present
Commanding Officer who has recently fleeted up from Executive Officer of
the same ship. The Squadron Commander desires to add his congratulations
to those of the Division Commander for a well conducted patrol by the new
Commanding Officer, officers and crew of the GRENADIER.

5. After submission of the War Diary the Commanding
Officer stated that he believed that he had originally under estimated
the size of the tanker sunk and that she was of at least 15000 tons dis-
placement. It is therefore believed that the GRENADIER inflicted the
following damage on the enemy:

— page 71 —
SSWP/A16-3/
Serial S-0065
CONFIDENTIAL

THIRD ENDORSEMENT to
CO USS GRENADIER Secret
War Diary SS210/A16-3
Serial 001 of 9-18-42.

From:
To :
Via :

Subject:

1.
after a patrol lasting sixty-seven (67) days. With the exception
of one officer who has been physically disqualified for sub-
marines, the other officers and crew were in excellent physical
condition and high state of morale. The ship was in very good
material condition.

2.
vessels during the forty day patrol off SOUTH ENTRANCE to TRUK.
It is considered that some of those vessels, in particular DD,
Q-Ship, catcher type patrol and sampans, should have been
hunted and sunk. By surfacing earlier, the four ship convoy
on 16 August might not have been lost and a big bag might have
resulted. The enemy must be doggedly pursued without regard to
area restrictions until he is sunk.

3.
the GRENADIER efficiently evaded without damage a subsequent
depth charge attack by the escorting destroyer.

4.
three (3) torpedoes and inflicted the following damage on the
enemy which was confirmed by other sources:-

One 15,000 ton AO - Sunk.

DISTRIBUTION:
COMINCH (2)
VICE OPNAV (1)
CINCLANTFLT (1)
CINCPACFLT (1)
COMSOUWESPACFOR (1)
COMSOUWESPACFLT (1)
COMSUBESPAC (5)

SUBMARINES, SOUTHWEST PACIFIC
U.S.S. SARGO (SS188), FLAGSHIP
October 6, 1942.
[HANDWRITTEN: Reg. No. ComSubRon-6.#645 (A-3-G/4166)]
R.S. No
[HANDWRITTEN: 11 094]

The Commander Submarines, SOUTHWEST PACIFIC.
The Commander-in-Chief, U.S. FLEET.
(1) The Commander U.S. Naval Forces, WESTERN
AUSTRALIA.
(2) The Commander U.S. Naval Forces, SOUTHWEST
PACIFIC AREA.

U.S.S. GRENADIER - War Diary of Third War Patrol.

The GRENADIER arrived in FREMANTLE from PEARL
Numerous contacts were made with anti-submarine
The attack on the tanker was well executed and
During the patrol the GRENADIER expended only

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

COMSUBSLANT (2)
COMTASKFOR-51 (1)
COMSUBRON-2 (1)
COMSUBRON-6 (1)
COMSUBRON-5 (1)
DIVCOMS,RON-2 (1)
DIVCOMS,RON-6 (1)
EACH S/M, W.A. (1)

[STAMP: COMMANDER IN CHIEF
U.S. FLEET
RECEIVED]
[HANDWRITTEN: 16 1]

[STAMP: CLASSIFICATION THIS DOCUMENT CHANGED TO] [HANDWRITTEN: Con.Fidential]
[STAMP: AUTHORITY] [HANDWRITTEN: F.O.S.]
[STAMP: DATE] [HANDWRITTEN: 11.2.1.42]
[STAMP: FILMED]
[HANDWRITTEN: 28]

— page 72 —
[HANDWRITTEN: 1ST COPY]

SS210/A16-3
Serial #004
DECLASSIFIED

U.S.S. GRENADIER

% Fleet Post Office,
San Francisco, California,
December , 1942.

From: The Commanding Officer.
To : The Commander-in-Chief, United States Pacific
Fleet.
Via : Official Channels.
Subject: War Diary (Fourth War Patrol Report).
Enclosure: (A) War Diary, Period 13 October 1942 to
December 1942.

1. Enclosure (A) is forwarded herewith.

B.L. CARR.

DECLASSIFIED-ART. 0445, OPNAVINST 5510.1C
BY [HANDWRITTEN: OP-09B9C] DATE [HANDWRITTEN: 5/26/22]

[STAMP: DECLASSIFIED]

[HANDWRITTEN: 46149]
[STAMP: FILMED]

— page 73 —
SECRET
U.S.S. GRENADIER, War Diary, 4th War Patrol, 13 October 1942 to
December 1942.

The U.S.S. GRENADIER arrived on 20 October 1942, in Albany, West Australia,
after her third war patrol. From that date until 11 Sept. 1942, the
GRENADIER was undergoing tender overhaul alongside the U.S.S. ELIAS. On
11 October 1942, she proceeded to Fremantle, W.A., arriving 13 October 1942.
There she topped off with fuel and stores and received her patrol orders
and departed on patrol that same night.

GRENADIER'S patrol orders required her to proceed to the approaches to
Haiphong, Indo China and lay a minefield of thirty-two mines and then to
conduct an offensive patrol against enemy shipping in the South China Sea,
between latitudes 12 degrees north and 18 degrees north until 20 November
1942, when she was to return to Fremantle, W.A.

NARRATIVE

October 13, 1942:
          1755 (I) Underway in accordance with CSSWP Operation
                   Order No. 60-42.
          2155 (I) Exchanged calls with U.S.S. SALMON.

POSITION
          0800                   1200                   2000
Lat:      -                      31-50 S
Long:     -                      115-27 E
Miles steamed: 72.3             Fuel expended: 660.

October 14, 1942:
          Underway on surface.
          0837 (I) Sighted P.B.Y. Dived.
          0905 (I) Surfaced.

POSITION
          0800                   1200                   2000
Lat:      29-51-15 S             29-14-15 S             27-39-49 S
Long:     113-36-15 E            113-09-45 E            112-50-05 E
Miles steamed surface: 313.9    Submerged: 1.2
Fuel expended: 2705.

October 15, 1942:
          Underway on surface.
          1500 (I) Made trim dive.
          1620 (I) Surfaced.

POSITION
          0800                   1200                   2000
Lat:      25-13-45 S             24-27-00 S             22-57-00 S
Long:     112-16-15 E            112-26-00 E            112-41-30 E
Miles steamed surface: 310.3    Submerged: 4.3
Fuel expended: 2680.

Page 1

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October 16, 1942: Underway on surface.
0755 (I) Sighted P.B.Y.
0759 (I) Sighted P.B.Y.
1204 (I) Moored to fuel barge at Exmouth Gulf.
1352 (I) Underway.
1630 (I) Sighted P.B.Y.
1712 (I) Sighted P.B.Y.

POSITION

0800 1200 2000
Lat: 21-36-45 S 22-13-15 S 22-32-15 S
Long: 114-12-30 E 114-10-30 E 113-36-30 E

Miles steamed surface: 272.1 Fuel expended: 2400.
Received: 7530.

October 17, 1942: Underway on surface.
1107 (I) Made training dive.
1121 (I) Surfaced.
1608 (I) Made training dive.
1626 (I) Surfaced.

POSITION

0800 1200 2000
Lat: 19-26-30 S 18-39-30 S 16-52-00 S
Long: 113-30-30 E 113-40-00 E 113-47-00 E

Miles steamed surface: 338.1 Submerged: 2.4.
Fuel expended: 266.5

October 18, 1942: Underway on surface.
1323 (I) Training dive.
1345 (I) Surfaced.
1917 (I) Sighted unidentified plane - dived.
1928 (I) Surfaced.

POSITION

0800 1200 2000
Lat: 14-13-45 S 13-22-30 S 11-40-00 S
Long: 114-32-40 E 114-46-00 E 115-17-15 E

Miles steamed surface: 350.3 Submerged: 1.8
Fuel expended: 2840.

October 19, 1942: Dived on approaching Lombok Strait, at 0605 (I).
0634 (I) Sighted Nusa Besar Isle, bearing 354 T.
Distance 15 miles.
2003 (I) Surfaced. Commenced passage through strait.
2220 (I) Completed passage through strait.

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October 19, 1942 (Cont'd)

                                  POSITION

0800                                1200                                2000
Lat:    09-01-00 S                  08-53-30 S                          08-49-00 S
Long:   115-40-00 E                 115-41-00 E                         115-44-00 E

Miles steamed surface: 152.0 Submerged: 37.1
Fuel expended: 1595.

October 20, 1942: Underway on surface.

                                  POSITION

0800                                1200                                2000
Lat:    06-30-00 S                  05-38-00 S                          04-05-00 S
Long:   116-43-30 E                 117-00-45 E                         118-03-30 E

Miles steamed surface: 341.5 Submerged: ---
Fuel expended: 2720

October 21, 1942: Underway on surface.
                  0620 (I) Made quick dive to avoid detection by two
                             small sailing vessels.
                  0752 (I) Surfaced.
                  1842 (I) Dived to avoid detection by sailing sampan.
                  1943 (I) Surfaced.

                                  POSITION

0800                                1200                                2000
Lat:    01-48-00 S                  00-56-00 S                          00-33-30 N
Long:   118-28-00 E                 118-38-00 E                         119-10-30 E

Miles steamed surface: 302.3 Submerged: 7.2
Fuel expended: 2235.

October 22, 1942: Underway on surface.
                  1717 (I) Dived to await darkness for transiting Sibutu
                             Pass.
                  1940 (I) Surfaced.
                  2347 (I) Completed passage through pass.

                                  POSITION

0800                                1200                                2000
Lat:    02-41-30 N                  03-35-30 N                          04-33-15 N
Long:   119-56-00 E                 119-52-45 E                         119-47-45 E

Miles steamed surface: 290.9 Submerged: 6.8
Fuel expended: 2110.

                                  Page 3

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October 23, 1942: Underway on surface.

POSITION
| | 0800 | 1200 | 2000 |
|---|---|---|---|
| Lat; | 06-56-15 N | 07-33-30 N | 08-53-45 N |
| Long: | 119-34-00 E | 119-48-00 E | 120-19-00 E |

Miles steamed surface: 295.5 Submerged: -
Fuel expended: 2025.

October 24, 1942: Underway on surface.
1813 (I) Dived on very positive radar airplane contact.
The weather was rainy and misty.
1955 (I) Surfaced.

POSITION
| | 0800 | 1200 | 2000 |
|---|---|---|---|
| Lat: | 10-46-00 N | 11-25-00 N | 12-23-00 N |
| Long: | 121-25-00 E | 121-18-30 E | 120-24-00 E |

Miles steamed surface: 310.4 Submerged: 3.6
Fuel expended: 1890.

October 25, 1942: Underway on surface.
2320 (I) Sighted steamer bearing 007 degrees T, distant,
2000 yds. Weather bad - raining - seas very
heavy. Approached on the surface on 110 degree
track. Suddenly noticed that angle on bow was
decreasing and that we were crossing his track
and were in to almost 500 yards. We had thought
the ship was about 5000 tons and could now see
that it was less than 1000 tons. We shoered
clear. It was apparent that his draft was less
than 10' and it would have been impossible to
fire a torpedo at so shallow a setting in that
sea. It was also impossible to man the deck gun.
Heading into the sea our maximum speed on two
engines was 8 knots, and they were coming green
over the bridge.

POSITION
| | 0800 | 1200 | 2000 |
|---|---|---|---|
| Lat: | 13-26-15 N | 13-36-00 N | 13-50-45 N |
| Long: | 118-16-30 N | 117-34-45 E | 116-18-30 E |

Miles steamed surface: 205.4 Submerged: -
Fuel expended: 2015.

Page 4

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October 26, 1942: Underway on surface, weather still stormy.

                                        POSITION

Lat:    0800                    1200                    2000
        14-18-45 N              14-28-30 N              14-47-15 N
Long    114-45-45 E             114-08-30 E             112-51-15 E

Miles steamed surface: 221.0 Submerged: --
Fuel expended: 1420.

October 27, 1942: Underway on surface:

                                        POSITION

Lat:    0800                    1200                    2000
        15-33-30 N              15-40-00 N              16-25-30 N
Long:   111-12-30 E             110-32-30 E             109-35-00 E

Miles steamed surface: 224.0 Submerged: --
Fuel expended: 1450.

October 28, 1942: 0718 (I) Submerged.
                   2000 (I) Surfaced.

                                        POSITION

Lat:    0800                    1200                    2000
        17-27-00 N              17-35-00 N              17-51-30 N
Long:   108-11-30 E             108-03-00 E             107-45-30 E

Miles steamed surface: 116.5 Submerged: 37.7.
Fuel expended: 1055.

October 29, 1942: 0711 (I) Submerged.
                   2015 (I) Surfaced.
                   2142 (I) Commenced mine plant. We had a number of
                            sampans in sight during the plant but do not
                            think that they saw us. The fifth mine planted
                            took off after 45 minutes.
                   2322 (I) Completed mine plant and commenced retirement.

                                        POSITION

Lat:    0800                    1200                    2000
        20-10-00 N              20-18-45 N              20-24-00 N
Long:   107-36-30 E             107-27-15 E             107-14-00 E

Miles steamed surface: 122.0 Submerged: 38.7
Fuel expended: 995.

page 5

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October 30, 1942: 0714 (I) Submerged.
                 2008 (I) Surfaced.

                                 POSITION
                 0800            1200            2000
Lat:            19-02-15 N      18-51-00 N      18-31-00 N
Long:           107-40-30 E     107-40-30 E     107-40-00 E

Miles steamed surface: 126.9 Submerged: 34.1
Fuel expended: 1170

October 31, 1942: 0714 (I) Submerged. Patrolling off Cape Mui Duong.
                 2014 (I) Surfaced.

                                 POSITION
                 0800            1200            2000
Lat:            18-04-30 N      18-00-00 N      17-45-00 N
Long:           106-41-00 E     106-40-00 E     106-40-30 E

Miles steamed surface: 58.7 Submerged: 35.0
Fuel expended: 400.

November 1, 1942: 0722 (I) Submerged, patrolling off Hon Dio.
                 2010 (I) Surfaced.

                                 POSITION
                 0800            1200            2000
Lat:            17-47-00 N      17-38-30 N      17-18-00 N
Long:           106-47-30 E     106-43-00 E     107-01-00 E

Miles steamed surface: 39.7 Submerged: 34.6
Fuel expended: 415.

November 2, 1942: 0716 (I) Submerged, patrolling off Tiger Island.
                 2013 (I) Surfaced.

                                 POSITION
                 0800            1200            2000
Lat:            17-20-00 N      17-10-00 N      17-04-00 N
Long:           107-10-00 E     107-12-00 E     107-23-00 E

Miles steamed surface: 47.1 Submerged: 38.1
Fuel expended: 460.

November 3, 1942: 0709 (I) Submerged. Patrolling near Tiger Island.

                                 page 6

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November 3, 1942 (Cont'd) Bad visibility due to heavy rain.

POSITION
0800           | 1200           | 2000
Lat: 17-25-00 N | 17-25-00 N | 17-25-00 N
Long: 107-26-30 E | 107-15-00 E | 107-17-00 E

Miles steamed surface: 46.2 Submerged: 34.6
Fuel expended: 385.

November 4, 1942: 0709 (I) Submerged. Patrolling near Tiger island.
                  1050 (I) Sighted steamer bearing 338 degrees T.
                           Distant 7 miles. Made approach. Allowed
                           vessel to pass by at 1200 yards. She was a
                           yacht type steamer about 400 tons, flying
                           French colors. Too close to shore to surface
                           and engage with deck gun and too small to use
                           torpedoes on.
                  2020 (I) Surfaced.
                  2037 (I) Sighted lights of steamer bearing 002 degrees
                           T. Distant 8 miles. Made approach on surface,
                           examined at 1500 yards. Appeared to be same
                           small ship sighted this morning. Let her go
                           by. We believe that attacking those small
                           ships will only disclose our presence and warn
                           other worth while targets away.

POSITION
0800           | 1200           | 2000
Lat: 17-14-00 N | 17-14-00 N | 17-06-00 N
Long: 107-27-00 E | 107-20-00 E | 107-22-00 E

Miles steamed surface: 53.8 Submerged: 33.7
Fuel expended: 435.

November 5, 1942: 0705 (I) Submerged, patrolling near Tiger Island.
                  2015 (I) Surfaced. Proceed to patrol across traffic
                           lanes between Hainan, Cape Varella and
                           Touraine.
                  2242 (I) Sighted lights of steamer bearing 131 degrees
                           True. Distant 10 miles. Made surface appr-
                           oach and examined from about 1000 yards. She
                           carried the white crosses of a diplomatic shi
                           so we let her go by.

POSITION
0800           | 1200           | 2000
Lat: 17-15-00 N | 17-12-00 N | 17-09-45 N
Long: 107-12-00 E | 107-08-00 E | 107-10-30 E

Miles steamed surface: 65.5 Submerged: 35.1
Fuel expended: 525.

page 7

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November 6, 1942: 0707 (I) Submerged.
                     2010 (I) Surfaced.

                               POSITION

        0800                     1200                     2000
Lat:    16-56-00 N               16-53-00 N               16-47-15 N
Long:   109-11-30 E              109-23-00 E              109-46-00 E

Miles steamed surface: 99.0 Submerged: 36.9
Fuel expended: 740.

November 7, 1942.: 0707 (I) Submerged.
                     1025 (I) Sighted submarine bearing 319 degrees True.
                              Distant 6 miles. (Our position: Lat: 16-17-
                              00 N; Long: 110-15-00 E). Made submerged
                              approach. Identified vessel as U.S.S. TIBO
                              She passed 800 yards distant.
                     1954 (I) Surfaced, decided to patrol off Cape Batangan

                               POSITION

        0800                     1200                     2000
Lat:    16-21-30 N               16-15-30 N               15-55-00 N
Long:   110-17-00 E              110-13-00 E              109-50-00 E

Miles steamed surface: 55.7 Submerged: 35.2
Fuel expended: 340.

November 8, 1942: 0654 (I) Submerged.
                     1900 (I) Surfaced.

                               POSITION

        0800                     1200                     2000
Lat:    15-21-00 N               15-16-00 N               15-15-30 N
Long:   109-14-30 E              109-07-30 E              109-09-00 E

Miles steamed surface: 46.7 Submerged: 34.6
Fuel expended: 330

November 9, 1942: 0705 (I) Submerged, patrolling off Cape Batangan.
                     2009 (I) Surfaced.

                               POSITION

        0800                     1200                     2000
Lat:    15-12-00 N               15-02-00 N               14-37-00 N
Long:   109-14-30 E              109-08-00 E              109-12-00 E

Miles steamed surface: 49.4 Submerged: 33.9
Fuel expended: 375.

                               page 8

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November 10, 1942: 0701 (I) Submerged.
                   2000 (I) Surfaced.

                   POSITION.

0800               1200               2000
Lat: 14-08-30 N    13-57-30 N         13-21-00 N
Long: 109-29-00 E  109-26-00 E        109-26-30 E

Miles steamed surface: 45.7 Submerged: 33.5
Fuel expended: 345

November 11, 1942: 0705 (I) Submerged:
                   1301 (I) Passed Cape Varella abeam to starboard
                            4 miles.
                   1655 (I) Sighted freighter on course 190 degrees T.,
                            distant 8 miles - Could not close so paralleled to keep in
                            sight for night attack.
                   1940 (I) Surfaced - Commenced chase on 3 engines.
                   2030 (I) Sighted light bearing 211 degrees T., distant
                            12 miles. Approached it and it turned out to
                            be the freighter.

                   POSITION

0800               1200               2000
Lat: 13-18-00 N    12-57-30 N         12-14-00 N
Long: 109-32-00 E  109-32-30 E        109-28-00 E

Miles steamed surface: 83.0 Submerged: 34.0
Fuel expended: 750.

November 12, 1942: (Continuing approach on Freighter).
                   0015 (I) Fired two bow tubes - no hits - apparently
                            no action on freighter. Commenced another
                            approach.
                   0035 (I) Fired another bow shot. Believe that it was
                            a dud hit because it was set to run at 10',
                            and lights were seen being flashed over the
                            side and the freighter turned in toward the
                            beach and turned off its lights. Another ship
                            had been sighted in toward the beach and head-
                            ing in our direction during this approach. The
                            two ships exchanged signals in blinker lights,
                            and at this time a heavy rain blotted every-
                            thing out. As we were about 4000 yards off
                            the beach at this time, and having lost sight
                            of the target, decided to clear to eastward.
                            It is thought that the misses were torpedo
                            failures, as we had the speed well figured in the
                            long approach, and the ranges were checked by
                            Q-C, just prior to firing, and no counter
                            measures could be noted that were taken by the
                            target.

                            page 9

— page 82 —
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November 12, 1942 (Cont'd)

0655 (I) Sighted ship bearing 288 degrees T., distan'
                   about 6000 yards.
0657 (I) Dived to make approach and avoid detection
                   as it was getting light. After leveling of f
                   raised periscope and saw that ship was a
                   corvette distant less than 1000 yards and
                   turning toward us at high speed. Started
                   down and as we passed 70 feet, heard 5
                   charges, close and to port. In the next 4
                   minutes we heard 5 more, none as close as
                   the first. Stern tubes were not ready so
                   there was no chance to fire before going
                   deep.
0810 (I) Hit the bottom, and carried away our sound
                   heads.
1015 (I) Cleared from the bottom and commenced work-
                   ing up to periscope depth.
1130 (I) Raised periscope - All clear.
1310 (I) Sighted plane bearing 225 degrees T., distan
                   3 miles - Went to 150'.
1500 (I) Sighted plane bearing 040 degrees T., distan
                   5 miles.
2010 (I) Surfaced. Noted that all hands were suf-
                   fering from symptoms indicating Chlorine g
                   aching joints, pain in throat and lungs,
                   rasping cough and some cases of vomiting.
                   Located chlorine gas in after battery well,
                   and flushed it out. Believe that salt water
                   had leaked into battery sump from heads
                   that overflowed due to faulty sea valves.
                   We were still south of our area and not
                   having seen much traffic close to the coast
                   decided to work to the northeast and patrol
                   traffic lanes, off the coast.

POSITION

           0800                  1200                  2000
Lat:       11-43-30 N            11-32-00 N            11-16-00 N
Long:      109-22-00 E           109-24-00 E           109-43-00 E

Miles steamed surface: 72.1 Submerged: 21.6
Fuel expended: 1070.

page 10

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November 13, 1942: 0652 (I) Submerged.
                     1950 (I) Surfaced.

                     POSITION

Lat: 0800           1200           2000
     11-49-30 N    11-50-30 N    12-06-00 N
Long: 110-59-30 E   111-05-30 E   111-15-00 E

Miles steamed surface: 79.7 Submerged: 35.5
Fuel expended: 790.

November 14, 1942: 0650 (I) Submerged.
                     1856 (I) Surfaced. The effects of the chlorine are
                              beginning to wear off, however we now have
                              numerous cases of sore and swollen gums.

                     POSITION

Lat: 0800           1200           2000
     12-21-00 N    12-21-00 N    12-21-00 N
Long: 111-37-00 E   111-27-00 E   111-09-30 E

Miles steamed surface: 69.8 Submerged: 33.4
Fuel expended: 640.

November 15, 1942: Decided to patrol on surface at 6 knots. Made three
                     training dives.

                     POSITION

Lat: 0800           1200           2000
     12-44-00 N    12-44-00 N    12-28-00 N
Long: 112-14-00 E   112-28-00 E   113-11-00 E

Miles steamed surface: 130.1 Submerged: 4.1
Fuel expended: 775.

November 16, 1942: Patrolling on surface.
                     1218 (I) Sighted steamer bearing 045 degrees T., dista
                              about 12-15 miles. Course 180 degrees T.
                              He presented a 45 degree angle on the bow so
                              decided to close his track on the surface.
                              Put our stern toward him and went to 4 engin
                              There was a great amount of smoke released in
                              starting the engines, and he was coming in
                              fast so it is probable that he spotted us
                              because he reversed course. We dived until
                              she passed from sight, then surfaced and
                              gave chase. We figured that she would event-
                              ually change course to starboard and probably
                              let us get in an attack. When sighted again
                              she had almost 90 degree starboard angle

                              page 11

— page 84 —
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November 16, 1942 (Cont'd)

on the bow. She would seem to move in and
then out of sight again and bearing change was
slight. She had as much speed as we, and it
began to be questionable as to who was trailing
who.
1613 (I) Heard transmission, close, on 500 K.C., in
international code.
1645 (I) Sighted smoke bearing 225 degrees T., that ap-
peared to be drawing rapidly to port. Thought
it might be an A/S vessel summoned by the
freighter and changed course toward it. Stop-
ped and raised #2 periscope and saw convoy of
6 ships, some presenting zero and some small
port angle on the bow.
1705 (I) Dived and commenced approach on convoy, could
see smoke only now; however continued to draw
to the left until 1730 (I) when it started chan-
ing to right; went to normal approach course
and when convoy came in sight it was about 8
miles distant and presented about 90 degrees
starboard angle on the bow. Saw we couldn't
close; so decided to trail and attack at night.
From course change, believe convoy either saw
us or received our position from single vessel.
1951 (I) Surfaced.
2001 (I) Sighted ship bearing 285 degrees T., distant
5 miles (bright moonlight). The visibility was
excellent except up where the convoy should be
and there was a rain squall in that direction.
2007 (I) Sighted ship bearing 325 degrees T., distant
4000 yards, coming out of the squall, and
closing; submerged to periscope depth but could
not see anything so changed course to 190 degrees
T., and surfaced at 2048.
2049 (I) Sighted corvette or destroyer about 2000 yards
distant bearing 330 degrees T., turning towards
us at high speed. Dived. Stern tubes were not
ready so went deep.
2052 (I) Heard 2 depth charges not too close. Commenced
evading tactics. Not having sound gear put us
at a disadvantage. We would probably have det-
ected the ship before we surfaced the second time
and would have avoided being spotted.

POSITION
| | 0800 | 1200 | 2000
Lat: | 12-35-00 N | 12-49-00 N | 12-30-30 N
Long: | 114-32-45 E | 114-19-20-E | 114-16-30 E

Miles steamed surface: 121.9 Submerged: 24.6
Fuel expended: 945.

page 12

— page 85 —
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November 17, 1942: 0020 (I) Surfaced - Nothing in sight. Ran into heavy
                                rain. The convoy had a 4 hour or more start
                                on us and the likelihood of overtaking it was
                                slight; so decided to stand toward the
                                Paracel Islands in case they came up that way
             0650 (I) Submerged. Decided that trolling on the
                                surface made us too visible, and with Radar
                                mast up, and 5 feet of periscope shears above
                                heads of lookouts we were liable to be sighte
                                first. Figure we can patrol at 50 feet with
                                17 feet of periscope out and cover about same
                                area as on surface.
             1900 (I) Surfaced.

POSITION

             | 0800        | 1200        | 2000        |
||||
Lat:         | 12-50-00 N  | 13-04-00 N  | 13-28-00 N  |
Long:        | 113-07-00 E | 113-00-00 E | 112-59-00 E |

Miles steamed surface: 123.2 Submerged: 33.3
Fuel expended: 1320.

November 18, 1942: 0653 (I) Submerged.
             1845 (I) Surfaced.

POSITION

             | 0800        | 1200        | 2000        |
||||
Lat:         | 14-41-00 N  | 14-51-00 N  | 15-10-00 N  |
Long:        | 112-50-00 E | 112-49-00 E | 113-01-00 E |

Miles steamed surface: 102.1 Submerged: 34.4
Fuel expended: 750.

November 19, 1942: 0645 (I) Submerged.
             1904 (I) Surfaced.

POSITION

             | 0800        | 1200        | 2000        |
||||
Lat:         | 14-30-00 N  | 14-26-00 N  | 14-16-00 N  |
Long:        | 114-18-00 E | 114-27-30 E | 114-50-00 E |

Miles steamed surface: 82.5 Submerged: 33.2
Fuel expended: 515.

November 20, 1942: 0648 (I) Submerged.
             1845 (I) Surfaced.

POSITION

             | 0800        | 1200        | 2000        |
||||
Lat:         | 14-36-00 N  | 14-34-00 N  | 14-25-30 N  |
Long:        | 115-43-00 E | 115-34-00 E | 115-15-00 E |

Miles steamed surface: 93.1 Submerged: 33.2
Fuel expended: 580.

page 13

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November 21, 1942: 0645 (I) Submerged.
                   1854 (I) Surfaced.

                   POSITION

Lat:       0800           1200           2000
Lat:       13-32-00 N     13-28-30 N     13-30-00 N
Long:      114-20-45 E    114-29-30 E    114-50-00 E

Miles steamed surface: 118.1 Submerged: 31.4
Fuel expended: 845.

November 22, 1942: 0647 (I) Submerged.
                   1857 (I) Surfaced. Decided to clear area via Palawan
                            Passage and patrol that area enroute Balabac
                            Strait.
                   2110 (I) Received instructions to intercept two cruiser
                            divisions enroute Manila from the south.
                            Assumed that ships coming from the southeast
                            would scarcely be stopping at Manila, since
                            such ports as Davao, Palau, or Truk would be
                            more available; so figured they were coming
                            from the southwest and decided to position
                            ourselves so that we could intercept ships rou
                            ting Lubang Island or going through Calavite
                            Pass. As the ships were due to arrive at
                            Manila at nightfall, this also insured us of
                            being in a position where we should sight them
                            during daylight.

                   POSITION

Lat:       0800           1200           2000
Lat:       12-40-00 N     12-33-30 N     12-18-00 N
Long:      116-16-00 E    116-24-30 E    116-47-30 E

Miles steamed surface: 111.3 Submerged: 32.6
Fuel expended: 810.

November 23, 1942: 0625 (I) Submerged.
                   1856 (I) Surfaced.

                   POSITION

Lat:       0800           1200           2000
Lat:       12-49-30 N     12-53-30 N     13-01-00 N
Long:      117-59-30 E    118-09-30 E    118-23-00 E

Miles steamed surface: 104.1 Submerged: 33.7.
Fuel expended: 800.

page 14

— page 87 —
SECRET

November 24, 1942: 0625 (I) Submerged. Patrolling off Calavite Pass.
                   1929 (I) Surfaced. Moonlight is very bright. Were able
                            to pick up mountains during night as distant
                            as 65 miles.

                                  POSITION

Lat:      0800          1200          2000
          13-19-00 N    13-23-00 N    13-30-00 N
Long:     119-33-30 E   119-44-00 E   119-50-00 E

Miles steamed surface: 79.9   Submerged: 35.3
Fuel expended: 460.

November 25, 1942: 0605 (I) Submerged. Patrolling south of Lubang Island.
                   1929 (I) Surfaced.

                                  POSITION

Lat:      0800          1200          2000
          13-30-00 N    13-38-30 N    13-31-00 N
Long:     120-03-00 E   120-06-30 E   119-59-30 E

Miles steamed surface: 78.2   Submerged: 36.9
Fuel expended: 485.

November 26, 1942: 0611 (I) Submerged.
                   1930 (I) Surfaced. Set course 180 degrees to return
                            to Fremantle.

                                  POSITION

Lat:      0800          1200          2000
          13-27-00 N    13-29-00 N    13-12-00 N
Long:     119-50-00 E   120-00-00 E   119-59-30 E

Miles steamed surface: 108.0  Submerged: 35.1
Fuel expended: 860.

November 27, 1942: 0610 (I) Submerged.
                   1916 (I) Surfaced.

                                  POSITION

Lat:      0800          1200          2000
          11-27-00 N    11-16-00 N    10-55-00 N
Long:     121-16-30 E   121-19-30 E   121-24-00 E

Miles steamed surface: 149.7  Submerged: 36.5
Fuel expended: 1305.

Page 15

— page 88 —
SECRET

November 28, 1942: Underway on surface.

                                        POSITION

                0800                    1200                    2000
Lat:            08-32-00 N              07-44-00 N              06-08-00 N
Long:           120-21-00 E             119-56-30 E             119-05-30 E

Miles steamed surface: 333.8 Submerged: -
Fuel expended: 2740.

November 29, 1942: 0215 (I) Completed passage through Sibutu Pass.
                   0703 (I) Submerged.
                   1900 (I) Surfaced.

                                        POSITION

                0800                    1200                    2000
Lat:            03-36-00 N              03-37-30 N              03-08-00 N
Long:           120-05-00 E             120-05-00 E             120-00-30 E

Miles steamed surface: 174.2 Submerged: 36.4
Fuel expended: 1720.

November 30, 1942: 0607 (I) Submerged. Passing through Strait of
                                Makassar.
                   0728 (I) Sighted carrier, heavy cruiser, and one dest-
                            royer coming through a rain squall. The car-
                            rier bore 081 degrees T., distant 7-8000 yar-
                            ds with a sixty to eighty degree angle on the
                            starboard bow. They were zigging and while
                            the angle on the bow gradually worked aft of
                            the beam, the range did not change greatly for
                            some time. The base course was assumed to be
                            210 degrees T., speed 15 knots.
                            The carrier appeared to be of the Ryujo class
                            except that the flight deck extended all the
                            way forward and the forward supports were
                            similar to those shown in pictures of the
                            Kaga. There was no superstructure above the
                            flight deck. In addition to the four masts
                            shown in the pictures of the Ryujo, there was
                            an additional mast aft with the colors flying.
                            Only the masts, stacks, and forward control
                            station of the cruiser was visible; however
                            their construction and size were such as make
                            its identification as a heavy cruiser fairly
                            certain.
                            Only the tip of the foremast of the destroyer
                            could be seen. The screening vessels were wel
                            ahead of the carrier. The closest range we

page 16

— page 89 —
SECRET
November 30, 1942 (Cont'd)

could get on the cruiser was about 15,000
yards.
If the visibility in the direction from which
the ships came had been good, we could have
easily picked them up at 15-20,000 yards and
should have been able to get in an attack.
Sound gear also may have permitted locating
the target. However, rather than bemoaning
our not getting in an attack, it might be
well to recognize the tremendous odds that
were in our favor, permitting us to see and
report this force. There was no air coverage.
We were in sight of land all day long and
it was not considered advisable to surface
and trail.

0800 (I) Carrier group out of sight.
1928 (I) Surfaced.
2035 (I) Sent contact report. Did not send immediate
        after contact because was not certain that
        we could reach Darwin on periscope antenna
        during daytime. Also it would have informed
        the carrier group that they had been sighted.
        We sent the message routine and at the usual
        times a surfacing sub might open up for
        routine transmissions.

POSITION

        0800            1200            2000
Lat:    00-43-00 N      00-26-00 N      00-07-00 N
Long:   119-27-00 E     119-22-00 E     119-06-00 E

Miles steamed surface: 144.5 Submerged: 39.1
Fuel expended: 1300.

December 1, 1942: 0515 (I) Submerged.
                 1945 (I) Surfaced.

POSITION

        0800            1200            2000
Lat:    01-03-30 S      01-15-00 S      02-08-30 S
Long:   118-49-00 E     118-47-00 E     118-38-30 E

Miles steamed surface: 127.3 Submerged: 43.2
Fuel expended: 1215.

Page 17

— page 90 —
SECRET

December 2, 1942: 0603 (I) Submerged.
                   1945 (I) Surfaced.

                               POSITION

             0800                 1200                 2000
Lat:        04-11-00 S         04-21-00 S         04-41-00 S
Long:       117-58-30 E        117-53-00 E        117-37-00 E

Miles steamed surface: 141.8 Submerged: 40.2
Fuel expended: 1500.

December 3, 1942: 0601 (I) Submerged.
                   2013 (I) Surfaced.

                               POSITION

             0800                 1200                 2000
Lat:        06-16-00 S         06-29-00 S         06-46-00 S
Long:       116-54-00 E        116-54-00 E        116-43-00 E

Miles steamed surface: 131.3 Submerged: 40.7
Fuel expended: 1230.

December 4, 1942: 0544 (I) Submerged - Commenced passage through Lombok
                                       Strait.
                   1551 (I) Cleared Strait.
                   2020 (I) Surfaced.

                               POSITION.

             0800                 1200                 2000
Lat:        08-23-45 S         08-32-45 S         09-00-30 S
Long:       115-50-30 E        115-44-00 E        115-36-45 E.

Miles steamed surface: 123.4 Submerged: 41.5
Fuel expended: 1320.

December 5, 1942: Underway on the surface.

                               POSITION

             0800                 1200                 2000
Lat:        11-36-15 S         12-31-15-S         14-23-00 S
Long:       114-50-00 E        114-34-45 E        114-00-15 E

Miles steamed surface: 353.7 Submerged: --
Fuel expended: 4065.

                               page 18

— page 91 —
SECRET

December 6, 1942: Underway on surface. Made trim dive.
                                        POSITION
Lat:           0800                    1200                    2000
              16-58-45 S              17-52-00 S              19-27-00 S
Long:         113-40-00 E             113-26-45 E             113-00-00 E
Miles steamed surface: 330.6 Submerged: 1.3
Fuel expended: 4010.

December 7, 1942: Underway on surface.
                  0600 (I) Sighted Vlaming Head Light bearing 145 T, distan
                           16 miles. Sighted USS TRINITY, HMAS GAWLER and
                           USS WHIPPOORWILL.
                  0805 (I) Sighted P.B.Y.
                  0910 (I) Sighted P.B.Y.
                  0935 (I) Closed TRINITY in the Gulf and she advised us
                           that she was fueling barge to capacity and sug-
                           gested that we keep our fuel. Commenced cleari.
                  1105 (I) Sighted P.B.Y.
                                        POSITION
Lat:           0800                    1200                    2000
              21-37-00 S              21-40-00 S              22-14-30 S
Long:         114-21-00 E             114-11-00 E             112-39-30 E
Miles steamed surface: 323.9 Submerged: --
Fuel expended: 2855.

December 8, 1942: Underway on surface.
                  1205 (I) Sighted P.B.Y.
                                        POSITION
Lat:           0800                    1200                    2000
              23-41-30 S              25-28-00 S              27-05-30 S
Long:         112-31-45 E             112-22-45 E             112-29-00 E.
Miles steamed surface: 330.9 Submerged: -
Fuel expended: 2895.

December 9, 1942: Underway on surface:
                  1030(I) Made trim dive.
                  1050(I) Surfaced.
                                        POSITION
Lat:           0800                    1200                    2000
              29-00-30 S              29-36-00 S              30-45-30 S
Long:         112-48-00 E             113-12-45 E             114-15-00 E
Miles steamed surface: 239.8 Submerged: 1.2
Fuel expended: 1485.

December 10, 1942: Underway on surface.
                  0130 (I) Sighted the loom of Rottnest Island Light bearing
                           138 T, distant 48 miles.
                  0452 (I) Rendezvoused with U.S.S. ISABEL.
                  1153 (I) Moored in Fremantle W.A. alongside,

18 (a)

— page 92 —
SECRET

                                                                WEATHER

Northeast monsoon had set in, in China sea before GRENADIER'S
arrival.

     In initial passage from Phillipines to Tonkin Gulf encountered storm
which was apparently caused by a typhoon to the north. Only one engine
speed was possible and DR navigation was necessary.

     Along coast of Indo China weather was changeable. Two or three days
would pass with relatively calm sea and light monsoon breeze. Station
close inshore could be maintained although visibility at best was ten to
fifteen miles due to a surface haze and mountains along the coast were
never visible even from four or five miles off the coast. A day or two
of bad weather would then follow with strong northeast winds, rain squalls
and overcast sky. Position fixing was impossible, and it was necessary
to run off the coast.

     In the Phillipines fine weather prevailed. The northeast monsoon
was well established. Visibility was exceptional. Time after time islands
and peaks were sighted as soon as they came within the theoretical
visibility range.

                                                          TIDAL INFORMATION

     Off shore in the China sea west of Long: 112° a south westerly
current of about 1 knot was experienced. Along the northern Indo China
coast a current of from 1 to 2.5 knots was experienced setting parallel
to the coast line, general direction southeast. From Cape Batangan south
to Cape Padaran set was almost due south and drift up to 3 knots was
experienced.

     Between Long: 113 degrees E and 116 degrees E., and between Lats:
12 degrees N and 15 degrees N., a set of about 1.0 knots toward 020 degrees
was experienced. This bore out pilot.

     Strong eddy currents are encountered close inshore. It was frequently
necessary to speed up a screw to help the rudder maintain the course.
The chances of getting a hit with a torpedo passing through these eddies
are problematical.

     In Makassar Strait on the return trip a northeasterly set of about
.5 knots was experienced instead of the .75 knot southerly set mentioned
in the sailing directions.

                                                                page 19

— page 93 —
SECRET

                                                                NAVIGATIONAL AIDS

          On the night of 23 October, Unsang Point light on the northeast coast
          of Borneo was burning as a steady white light and not with the character-
          istics shown in light list.

          On the night of 28 November, Unsang Point light was again burning.
          Each time its position was checked against a fix obtained by other bearings
          and its location is as shown on the charts.

          Until the fathometer grounded out on 17 November, it proved to be
          of great value for navigation especially when operating close inshore along
          the Indo China coast, during the overcast weather encountered on the way
          to station
          and

                                                                page 20

— page 94 —
SECRET
SHIPS SIGHTED
DATE | TIME | POSITION | BEARING | DISTANCE | COURSE | SPEED | DESCRIPTION
-----|------|||||-------|
25 Oct | 2320 | 34-03 N | 007 T. | 1 mile | 060 | 6 | Small steam vessel of 100 tons with
     |      | 115-40 E |         |          |         |       | single high stack. Believed to have
     |      |          |         |          |         |       | been a trawler. Estimated mast
     |      |          |         |          |         |       | height 60 ft. Estimated length 200 ft.
     |      |          |         |          |         |       | Closed for attack but did not attack.
     |      |          |         |          |         |       | Doubted whether or not it was worth a
     |      |          |         |          |         |       | torpedo and in any case
     |      |          |         |          |         |       | torpedo performance doubtful. Too rough
     |      |          |         |          |         |       | to man deck gun.
4 Nov | 1050 | 37-14 N | 338 T | 7 miles | 170 | 8 | Small yacht type steam vessel of 300 to
     |      | 107-22 E |         |          |         |       | 400 tons flying French colors. Estimated
     |      |          |         |          |         |       | length 150 feet. Reached firing position
     |      |          |         |          |         |       | but decided he was too small for a torpedo.
     |      |          |         |          |         |       | Masthead height 50 feet.
4 Nov | 2037 | 37-06 N | 002 T | 8 miles | 140 | 5 | Small steam yacht of 300 to 400 tons.
     |      | 107-24 E |         |          |         |       | Lighted with normal navigational lights.
     |      |          |         |          |         |       | Closed and decided to let him go
     |      |          |         |          |         |       | by because of small size. Believed same
     |      |          |         |          |         |       | vessel seen during day.
5 Nov | 2242 | 37-10 N | 131 T | 10 miles | 345 | 12 | Diplomatic ship of about 5000 tons, 2
     |      | 107-30 E |         |          |         |       | masts, one stack, high bridge structure.
     |      |          |         |          |         |       | Estimated length 300 feet. Lighted.
     |      |          |         |          |         |       | Closed to about 1000 yards.
11 Nov | 1655 | 32-29 N | 317 T | 8 miles | 190 | 7 | Cargo vessel of about 3500 tons. Two
     |      | 109-34 E |         |          |         |       | masts, single high stack, no goal posts,
     |      |          |         |          |         |       | high bridge structure. Estimated mast
     |      |          |         |          |         |       | height 60 ft. Estimated length 300
     |      |          |         |          |         |       | ft. Made two unsuccessful attacks. At
     |      |          |         |          |         |       | night this vessel burned
     |      |          |         |          |         |       | regular navigational lights.

— page 95 —
page 22

SECRET

| DATE | TIME | POSITION | BEARING | DISTANCE | COURSE | SPEED | DESCRIPTION |
|---|---|---|---|---|---|---|---|
| 12 Nov | 0655 | 11-43 N; | 288 T | 3 miles | 100 | 16 | Jap Corvette of 600 tons, one mast, one stack |
| | | 109-20 E: | | | | | : clipper bow. Gun forward. |
| 16 Nov | 1218 | 12-52 N; | 045 T | 12 to 15: | 180 | 14 | Cargo vessel of about 7000 tons. Two sets of |
| | | 111-39 E: | | miles. | | | : goal posts, high bow. Estimated length 400 ft. |
| 16 Nov | 1700 | 12-27 N; | 225 T | 15 miles: | 330 T | 7 | Cargo vessel, 4000 tons. Estimated length |
| | | 111-16 E: | | | | | : 350 feet. |
| 16 Nov | 1700 | 12-27 N; | 225 T | 15 miles: | 330 T | 7 | Cargo vessel, 5000 tons. Estimated length |
| | | 111-16 E: | | | | | : 400 feet. |
| 16 Nov | 1700 | 12-27 N; | 225 T | 15 miles: | 330 T | 7 | Cargo vessel, 4000 tons. Estimated length |
| | | 111-16 E: | | | | | : 350 feet. |
| 16 Nov | 1700 | 12-27 N; | 225 T | 15 miles: | 330 T | 7 | Cargo vessel, 5000 tons. Estimated length |
| | | 111-16 E: | | | | | : 400 feet. |
| 16 Nov | 1700 | 12-27 N; | 225 T | 15 miles: | 330 T | 7 | Tanker 5000 tons, two masts, one high stack |
| | | 111-16 E: | | | | | : high bow and stern with bridge aft. Estimated |
| | | | | | | | : length 600 feet. |
| 16 Nov | 2007 | 12-33 N; | 325 T | 3 miles | 145 T | 15 | Jap Corvette. 600 tons. |
| | | 110-47 E: | | | | | |
| 30 Nov | 0728 | 00-47 N; | 081 T | 7000 to | 180 T | 15 | Jap aircraft carrier similar to Ryujo except that |
| | | 119-27 E: | | :8000 yds | | | : flight deck extended all the way to the bow. |
| | | | | | | | : She had five masts and no superstructure above |
| | | | | | | | : the flight deck. |
| | | | | | | | : She was in a rain squall at this time and |
| | | | | | | | : sighting the carrier was the reason for not |
| | | | | | | | : until she was almost past. Came to normal |
| | | | | | | | : approach course but was unable to close for a |
| | | | | | | | : shot. |
| 30 Nov | 0728 | 00-47 N; | 095 T | 15,000 | 180 T | 15 | Jap heavy cruiser acting as a starboard |
| | | 119-27 E: | | : yds. | | | : screen for carrier. |

— page 96 —
[HANDWRITTEN: pago 23]

SECRET
DATE | TIME | POSITION | BEARING | DISTANCE | COURSE | SPEED | DESCRIPTION
-----|------|||||-------|
30 Nov | 0728 | 00-47 N | 087 T | 18000 yds | 180 | 15 | Jap destroyer acting as
     |      | 119-27 E |         |          |        |       | port screen for
     |      |          |         |          |        |       | carrier

It was noted that both screens were well out ahead of the carrier.
No air screens were observed, probably because of the rain and general bad visibility.

— page 97 —
SECRET

AIRCRAFT SIGHTED

DATE : TIME : POSIT       : BEARING : DISTANCE  : COURSE : ALTITUDE: DESIGNATION :
14 Oct: 0837 : 29-44 S   : 125     : 8 miles   : 310    : 400 ft : P.B.Y.
             113-30 E

16 Oct: 0755 : 24-40 S   : 170     : 8 miles   : 320    : 500 ft : P.B.Y.
             114-16 E

16 Oct: 0759 : 21-40 S   : 190     : 6 miles   : 320    : 500 ft : P.B.Y.
             114-16 E

16 Oct: 1630 : 21-45 S   : 332     : 7 1/2 mil : 190    : 500 ft : P.B.Y.
             114-14 E

16 Oct: 1712 : 21-35 S   : 325     : 8 miles   : 150    : 1000 ft: P.B.Y.
             114-12 E

18 Oct: 1917 : 11-46-30 S: 135     : 7 miles   : 000    : 2000 ft: Bomber Mono-
             115-11 E                                            plane.Land plane

12 Nov: 1314 : 13-08 N   : 325     : 3 miles   : 090    : 500 ft : Type "S"
             109-37-30 E                                         Soversky.

12 Nov: 1500 : 13-10 N   : 040     : 5 miles   : 180    : 500 ft : Type 97
             109-40 E                                            Nakejima.

7 Dec : 0805 : 21-38 S   : 180     : 15 miles  : 000    : 500 ft : P.B.Y.
             114-21 E

7 Dec : 0910 : 21-52 S   : 205     : 11 miles  : 340    : 500 ft : P.B.Y.
             114-18 E

7 Dec : 1105 : 21-45 S   : 200     : 12 miles  : 000    : 500 ft : P.B.Y.
             114-20 E

3 Dec : 1205 : 25-29 S   : 300     : 15 miles  : 135    : 500 ft : P.B.Y.
             112-22 E

Page 24

— page 99 —
SECRET

                                ENEMY A/S MEASURES

        Enemy air patrols were very weak. One plane was sighted 100 miles
south of the Malay Barrier. Radar contact was made with an enemy plane 25
miles southwest of Mindoro P.I. Two enemy planes were sighted off Daveich
Head, Indo China, but our presence was known on the day we contacted the Cor-
vette and they were obviously making a special search.

        With those exceptions no enemy air activity was noted. When going on
patrol, passage from the Malay Barrier to the entrance to Tonkin Gulf was
made on the surface except for trim dives, and it is therefore believed that
more planes would have been sighted, if patrol activity had been great.

        Surface patrols were also limited. The only surface patrols encountered
were a corvette off Daveich Head, Indo China and a Corvette escorting a six
ship convoy in the South China Sea. In the first case it was obviously
searching for us after our unsuccessful attack on a merchantman in the early
morning. On sighting us he headed directly for us at high speed and dropped
pattern of 5 charges at our supposed position followed shortly after by 2
charges. Three single charges were dropped later. He used both pinging
and listening in his hunt.

        In the second case the Corvette apparently knew of our presence from th
afternoon contact with the single ship. He trailed the convoy to protect
it from astern. When he first sighted us he headed for us but after we dived
made no attack. Since our sound heads were gone it is not known whether or
not he used pinging. In any case he was waiting for us when we surfaced
40 minutes later, and this time he attacked with depth charges.

        In both cases the GRENADIER used silent running and deep submergence to
evade. The enemy was kept as near dead astern as possible.

        On 30 November at the contact with the Carrier it was noted that the
screening Cruiser and Destroyer were well ahead of the Carrier

Page 26

— page 100 —
SECRET

MAJOR DEFECTS

#4 Main Engine was out of commission for four days as a result of a
fresh water leak due to a crack at the junct on of the inboard exhaust
manifold and the
steel flange at the forward end of the manifold.
Inboard section of manifold removed after spending two days tearing up floor
plates, removing electrical leads, and attempting to pry loose the manifold
from the engine. Crack soldered and manifold replaced. No further trouble
experienced during the rest of the patrol.

Both sound heads were ruined when the ship bottomed on 12 November off
the Indo China Coast.

The Fathometer is grounded.

The advisability of carrying an ample supply of acetylene gas was
well shown. Casualties requiring brazing and welding, which, though minor
in nature, had to be remedied for efficient operation of the Engineering
plant were quickly and permanently made.

Page 27

— page 101 —
SECRET                                                              REMARKS

Radio reception: was good throughout the patrol.

Sound conditions: were poor along the Indo China coast. Water was very
noisy due to shallowness. In other areas no information could be gained
due to loss of sound heads on 12 November.

Density layers: In the South China Sea in Lat: 12-33 N, Long: 114-10
E, while going deep to avoid depth charge attack it was necessary to flood
in 10,000 lbs to remain at 240 feet and not come up, and standard speed had
to be used until the additional water had been taken aboard. This water had
to be pumped out for periscope depth trim. Near and off the Indo China coast
the observations made by other boats were confirmed. Boat was light near
the coast and heavy when diving well off shore.

Chlorine: The experience with Chlorine gas on 12 November was an un-
pleasant one. The efficiency of the whole ship's company was adversely
affected for several days. The following symptoms were noted:

SYMPTOM                                                              % AFFECTED

Pain in chest with each breath:                                      100
Dry hacking cough:                                                   100
Nausea and vomiting:                                                 70
Headaches for 12 hours:                                              60
Soreness of gums and throat:                                         70
Tiredness for several days:                                          50

Traffic routes: It is believed that only southbound traffic uses the
route close inshore along the Indo China coast at this season of the year.
The strong southerly set helps this traffic and would greatly increase the
time and fuel required for the northbound traffic. After a ten days in-
shore along the coast showed coastal traffic north of Padaran to be
negligible. It is also believed that the northbound traffic at this time of
the year uses the eastern route mentioned in HO 125 (Sailing Directions for
the Western Shores of the China Sea). The convoy sighted on 16 November
used this eastern route.

Lighted ships: These were encountered along the coast and all seem to
be of small tonnage. The system of lights used is rather deceptive. In
addition to regular side and mast head lights (dimmed), they carry a brilliant
light on each side almost directly below the sidelights and at a distance of
almost half the freeboard from the waterline. Another brilliant all around
light is carried on a high staff at the stern. Viewed from anywhere except
close to the stern or bow, these give the appearance of range lights just
appearing and the course of the target is hard to judge and you are almost
on top of the ship before the ruse can be recognized. The brilliance of the
lights makes it almost impossible to make out the outlines of the ship.

Page 28

— page 102 —
SECRET
REMARKS (Cont'd)

Personnel: In spite of the ill health resulting from the chlorine, and
the disappointment incident to our poor luck on attacks, the morale of the
officers and crew has been excellent.

The smoothness with which the mine plant progressed was due to the
excellent planning and supervision of the Gunnery Officer.

The continued operation and efficiency of all machinery is a credit
to the heads of departments and the personnel under them.

Habitability was good.

Potable water endurance remainingUnlimited.
Battery water endurance remainingUnlimited.
Balanced ration food endurance remaining10 days.
Fuel endurance remaining10 days. (21,000 gals)
Torpedoes remaining5
Personnel endurance5 days.

Total miles underway10,863.8.
Total fuel expended80,500 gals.

— page 103 —
(6)/OL

SUBMARINE SQUADRON SIX

U.S.S. TAUTOG, Flagship,
December 13, 1942.

FC5-6/A16-3
Serial #00-45

FIRST ENDORSEMENT to
C.O.Grenadier 4th War
Patrol #004 of 12/10/42
S E C R E T

From: The Commander Submarine Squadron SIX.
To : The Commander Task Force 51.

Subject: U.S.S. GRENADIER - Fourth War Patrol - Comment on.

1. Forwarded. The fourth war patrol of the GRENADIER was a
combination mining and torpedo patrol; it covered a period of fifty-nine days
of which forty-six were spent north of the Malay Barrier. The passage from
Lombok Strait to the Tonkin Gulf was made almost entirely on the surface with-
out sighting any aircraft and with only three contacts with surface craft, two
of which were small sailing vessels.

2. Material performance during the patrol was excellent with
no mechanical derangements of any magnitude having been experienced. Sound
heads will be replaced if all material becomes available during current refit
which is being undertaken by Folies. General cleanliness of machinery and
structure upon return from patrol was exemplary.

3. Chlorine gas caused by salt water which leaked into the
after battery well affected the entire personnel of the ship for several days.
No serious sickness resulted and, except for this, health and habitability were
excellent.

4. The mining mission was successfully carried out; one prema-
ture explosion resulted. Seventeen contacts were reported but only one was de-
veloped into an attack which was unsuccessful; the Commanding Officer reports
that the three torpedoes fired at the one ship attacked appeared to run under
the target without exploding. Several small vessels which might have been
attacked were permitted to go unmolested because of their size. The Commanding
Officer stated that he considered that attacking these small ships would disclose
his presence and warn off more worth while targets. Except under the most un-
usual circumstances, all enemy vessels encountered must be destroyed, and it is
considered a mistake to with hold attacking a small target in hopes of finding
a larger one. Instructions to attack enemy cruisers scheduled to arrive off
Manila were not properly carried out. The GRENADIER stopped off Lubang Island
when she should have gone to a position off the entrance to Manila Bay. It is
unfortunate that the convoy sighted on November 16 and the warrior group sighted
on November 30 could not be closed sufficiently for an attack. More determined
efforts on this patrol might have been productive of better results. No damage
was inflicted on the enemy by this patrol.

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

— page 104 —
A16-3
Serial 00158

S-E-C-R-E-T

SECOND ENDORSEMENT to
CO GRENADIER Secret
ltr. SS210/A16-3 Serial
CO4 of 12-10-42 (Fourth
War Patrol Report)

COMMANDER ALLIED NAVAL FORCES
Ly.
December 17, 1942.

From: The Commander TASK FORCE FIFTY ONE.
To : The Commander in Chief, U.S. FLEET.
Via : The Commander Southwest Pacific Force.

Subject: U.S.S. GRENADIER - Fourth War Patrol - Comment on.

1. Forwarded, concurring in remarks of Commander Sub-
marine Squadron SIX as set forth in first endorsement.

2. Routine periodic flushing of battery sumps with
fresh water and soda solution should be carried out in order to prevent
accumulation of acid which will liberate chlorine gas on contact with salt
water.

3. The submarine was engaged primarily in mining operations
and was carrying only 8 torpedoes. She returned with 5 torpedoes remaining
on board. The ship was further handicapped by the loss of both sound receivers
during the early stages of the patrol.

4. Out of a total of 17 contacts only 2 attacks were made,
both of which were on the same ship. In the second attack only one torpedo
was fired. The misses are believed to be due to inaccurate firing data. As
has been repeatedly emphasized a spread of at least two torpedoes should
invariably be used to provide for erratic torpedo performance as well as to
compensate for errors in estimated course and speed of the target. Numerous
small ships were sighted which were not attacked. The Force Commander takes
this occasion to again point out that the loss of ships, regardless of tonnage,
may be severely felt by the enemy.

5. More aggressive action in the pursuit of the convoy
sighted on November 16th might have been productive of greater results.

6. It is noted that the patrol on November 24, 25 and 26,
in an effort to intercept enemy cruisers believed to be proceeding MANILA
from the South, did not cover the exit from VERDE ISLAND PASSAGE. The line
of reasoning used by the Commanding Officer in arriving at his decision to
patrol off LUBANG ISLAND, some sixty miles from MANILA BAY, is considered
faulty as specific orders directed an attack on enemy cruisers "OFF MANILA".

7. No damage was inflicted on the enemy by the GRENADIER during
this patrol.

DISTRIBUTION /s/ C. A. LOCKWOOD, Jr.
COMINCH (2) (Via Comsouwespacfor) COMSOUWESPACFOR (1) COMTASKFOR 42 (1)
VICE OPNAV (1) (" ") COMSOUWESPACFOR (1) COMSUBRON 6 (1)
CINCLANFLT (1) COMSUBSPAC (5) DIVCOMS,RON 6 (1)
CINCPACFLT (1) COMSUBSLANT (2) EACH S/M,W.A. (1)

— page 105 —
[HANDWRITTEN: 9980]
4 0889

A16-3
Serial 1082

SOUTHWEST PACIFIC FORCE

[STAMP: CONFIDENTIAL]

March 12, 1943

From: The Commander Southwest Pacific Force.
To : The Commander Task Force FIFTY ONE.

Subject: U.S.S. GRENADIER Fourth War Patrol, report
of, request for additional copies of.

1. It is requested that the Commander Southwest
Pacific Force be furnished three (3) additional copies of
subject report to replace copies which were forwarded to
the Commander-in-Chief, United States Fleet and the Vice
Chief of Naval Operations on NATS Flight 62100 which has
been reported missing.

[SIGNATURE: J. Cary Jones]
J. CARY JONES,
Chief of Staff.

— page 106 —
[STAMP: CONFIDENTIAL]
UNITED STATES FLEET
COMMANDER SEVENTH FLEET

A16-3

Serial 00278
CONFIDENTIAL

SECOND ENDORSEMENT to
CSWPF serial 1082 of
March 12, 1943.

From: The Commander SEVENTH FLEET.
To: The Commander in Chief, United States Fleet.
Subject: U.S.S. GRENADIER - Fourth War Patrol - report of.

1. Forwarded.

Copy to:
VCNO (1 enc)
(2 herewith)

MAR 30 1943
[HANDWRITTEN: Reg. No. Q.2.1.1.5 (10674)]
[HANDWRITTEN: R.S. No. 4 0889]

[SIGNATURE: J. GARY JONES]
Chief of Staff.

[STAMP: COMMANDER IN CHIEF]
[STAMP: U.S. FLEET]
[STAMP: RECEIVED]
[STAMP: 1943 APR 13 14 46]

[STAMP: 46149]
[STAMP: FILMED]

— page 107 —
[HANDWRITTEN: 1ST COPY]

SS210/A16-3/
Serial #02
[STAMP: DECLASSIFIED]
[STAMP: CONFIDENTIAL]

U. S. S. GRENADIER

% Fleet Post Office,
San Francisco, California,
February 20, 1943.

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

Subject: War Patrol Report. (Fifth War Patrol)

Enclosure: (A) War Patrol, Period January 1, 1943 to
February 20, 1943.

1. Enclosure (A) is forwarded herewith.

[SIGNATURE: J.A. Fitzgerald]
J.A. FITZGERALD

[STAMP: DECLASSIFIED ART. 0445, OPNAVINST 5510.1C]
[HANDWRITTEN: BY OP-09B9C DATE 5/26/72]
[STAMP: DECLASSIFIED]

[HANDWRITTEN: 155879]

— page 108 —
EMPLOYMENT SINCE LAST PATROL: . . .
Dec 11, 1942: Returned to Fremantle, W.A., from fourth war patrol.
Began two week tender and relief crew refit.
Dec 12, 1942: Officers and crew sent to rest camps.
Dec 24, 1942: Officers and crew returned from rest camps. Lieutenant
Commander, B.L. CARR, U.S.N. was relieved as commanding officer by
Lieutenant Commander, J.A. FITZGERALD, U.S.N. Began readiness for sea
period.
Dec 28, 1942: Conducted sound test of equipment; ran over degaussing
calibration range; calibrated radio direction finder.
Dec 31, 1942: Conducted sound training and approach exercises with
H.M.A.S. WALLAROO. Test fired 20MM gun. Conducted deep dive; 250'.

INSTRUCTIONS FOR CURRENT PATROL

Commander Task Force 51; Operation Order No. 74-42.
When directed about January 1, 1943, depart Fremantle, W.A., proceed
via the bombing restriction lane to Exmouth Gulf and there fuel to
capacity. Thence proceed to the vicinity of Cape Varella on the Indo
China Coast via Lombok Strait, Makassar Strait, Sibutu Passage, Mindoro
Strait and north of Dangerous Ground exploiting possible trade lanes
enroute.
Conduct offensive patrol against enemy combatant, supply and transport
shipping. Upon arrival Indo China Coast conduct offensive patrol close
to the coast keeping to the northward of latitude 11 degrees - 40'
north. If unfavorable weather precludes effective patrol along Indo
China coast or area is not productive at end of sixth day on station,
report and wait further orders.
Start return to Fremantle at sunset February 6, 1943 via reverse of
outbound route.

Above operation order modified by C.T.F. 51 serial 24, directing
GRENADIER patrol approaches Surabaya, Makassar and Balikpapan, remain-
ing on northern approaches to Surabaya for one week pending further
developments. If patrol ineffective due to enemy anti-submarine
measures, proceed approaches to west and south west Makassar - reporting
when advisable.
C.T.F. 51 serial 37 modified above to patrol areas off Balikpapan,
Makassar and back to Surabaya departing latter place February 10, 1943.
C.T.F. 51 serial 76 modified above to conduct patrol off Makassar so
as to arrive vicinity Saleier Strait February 2, thence to vicinity
Pulassi Island thence to northern entrance Bali Strait, via 8-00-00 S.
latitude, departing latter place at dark February 12, 1943.

page 1

— page 109 —
NARRATIVE
Jan 1, 1943: 1st day.
0907: Underway fifth war patrol, clearing Fremantle harbor
enroute Submarine exercise area to conduct sound training, daylight sub-
merged attacks and night surface attacks with H.M.A.S. DUBBO.
2137: With Rottnest Island Light bearing 077 degrees T, distance 24
miles, took departure. Proceeding on surface to and in bombing restric-
tion lane.
1200: Latitude: 31-42-00 S. Longitude: 115-30-00 E.
Miles steamed: 92.3 Fuel used: 1050.

Jan 2, 1943: Second day.
Underway on surface in bombing restriction lane. Made five training
dives and held gunnery drills during the day.
1200: Latitude: 29-31-35 S. Longitude: 113-25-00 E.
Miles steamed: 313.2 Fuel used: 3205.

Jan 3, 1943: Third day.
Underway on surface in bombing restriction lane. Made training dive,
and conducted gunnery drills during day.
1200: Latitude: 24-42-00 S. Longitude: 112-24-30E.
Miles steamed: 353.4 Fuel used: 3620.

Jan 4, 1943: Fourth day.
Underway on surface in bombing restriction lane.
0540: Sighted Vlaming Head light bearing 160 degrees T., distance 19
miles.
0641: Sighted 2 PBY planes, bearing 165 T., distance 7 miles and 175 T
11 mi.respectively. Latitude: 21-39-30 S. Longitude: 114-07-00 E.
0719: Entered Exmouth Gulf.
0950: Moored to fuel barge.
1205: Completed fueling to capacity having received 9500 gallons diesel
oil.
1214: Underway, clearing Exmouth Gulf. Conducted emergency drills,
gunnery drills and made trim dive.
1200: Latitude: 22-14-00 S. Longitude: 114-10-00 E.
Miles steamed: 280.6 Fuel used: 2375. Fuel received: 9500.

Jan 5, 1943: Fifth day.
Underway on surface. Made eight training dives. Held battle surface
drills. Fired 3"/50 cal and 20MM for training, both day and night.
During day drills fired both 30 cal. machine guns and tommy guns.
2051: Received C.T.F. 51 serial 24, changing area of operations for
GRENADIER.
1200: Latitude: 18-19-00 S. Longitude: 113-59-00 E.
Miles Steamed: 311.3 Fuel used: 3010.

Jan 6, 1943: Sixth day.
Underway on surface. Made trim dive. Conducted various drills.
1200: Latitude: 13-21-00 S. Longitude: 114-56-00 E.
Miles steamed: 336.4 Fuel used: 3495

page 2.

— page 110 —
Jan 7, 1943: Seventh day.
Underway on surface.
0517: Sighted Nusar Besar Island, bearing 000 T, distance 20 miles.
0523: Submerged.
1255: Commenced passage through Lombok Strait, current quite favorable,
averaging about three knots to northward.
1800: Completed passage Lombok Strait.
1918: Surfaced.
1200: Latitude: 08-52-00 S Longitude: 115-43-00 E.
Miles steamed: 188.6 Fuel used: 1520.

Jan 8, 1943: Eighth day.
Underway on surface.
0245: Discovered fathomoter to be grounded, and beyond remedy away
from tender. This unfortunate incident was, needless to say, quite
disconcerting; particularly in view of the new areas assigned GRENADIER.
0541: Submerged, sky very much overcast and fix doubtful.
0612: Changed course to 270 T, along 6-06-30 latitude line enroute
Surabaya area.
1903: Surfaced. Sky overcast and strong westerly wind. No fix obtain-
able.
1907: Course 290 T, heading toward Great Masalembo from D.R. position
in hopes that if a fix is not to be obtained tomorrow morning would at
least be in sight of these islands and near a possible traffic lane.
A couple stars through a rift about 2130 gave an indication that
GRENADIER was to north east of D.R. position so at 2230, changed course
to 270 T.
1200: Latitude: 6-06-30 S. D.R. Longitude: 112-12-30 E. D.R.
Miles steamed: 167.7 Fuel used: 1340.

Jan 9, 1943: Ninth day.
Underway on surface. Wind strong from west, making about 11 knots on
two main generators.
0445: Stopped and took a sounding with the lead - bottom at thirty-
four fathoms, 270 seemed to be a good course.
0536: Submerged, having obtained a few stars for a fix.
0555: Sighted Great Masalembo Island bearing 312 T, distance 13 miles.
0632: Changed course to 241 T, paralleling possible shipping lane
and also to avoid a 13 fathom spot.
1021: Course 270 T. Making little headway, current averaging about 2
knots on 090 T. Desired to get closer to the shipping lane.
1918: Surfaced.
1945: Course 246 on probably route Balikpapan - Surabaya.
1200: Latitude: 05-47-30 S Longitude: 114-27-30 E.
Miles steamed: 160.2 Fuel used: 1290.

Jan 10, 1943: Tenth day.
Underway on surface. Patrolling northern approaches to Surabaya.
0149: Course 270 T.
0548: Submerged, no star fix but believed to be on route Surabaya
to west of Bawean by D.R.
0620: Sighted two masted schooner bearing 300 T, distance about 5

page 3

— page 111 —
miles. At first believed to be of about 150 tons, but later decided
it to be about half that size. Lat: 06-19-00 S. Long: 112-44-00 E.
0622: Commenced approach for possible battle surface.
0707: Surfaced. Range about 1000 yards and closing.
0708: Commenced firing with 3". Much activity on deck of schooner
including hoisting of Japanese flag. First shot, 3" fired with idea
of forcing schooner to heave to - it did not, so continued firing with
3", 20M and 30 cal. machine guns.
0719: Ceased firing. Schooner on fire.
0732: Submerged, having inspected schooner at about 50 yards.
0750: Schooner sank. Survivors in the boat, and on masts. Had obs-
erved twelve of crew at one time while schooner was afloat. Saw several
objects of about three feet square and six to eight inches thick enc-
losed in grass matting.
0808: Course north to sight Bawean Island and establish position,
weather still overcast.
1202: Sighted Bawean Island in haze; sun trying to break through clouds.
1238: Fixed up for noon sight.
1241: Submerged.
1922: Sighted Corvette distance about 6800 yards, course 350 T, bearing
259 T, speed about 10-12. Commenced approach, hoping Corvette would
zig toward GRENADIER and get in a shot before darkness. No luck.
1934: Broke off attack as target was lost in darkness on bearing 320 T.
2025: Surfaced, and established patrol on Surabaya - Tg. Selatan line.
2200: Latitude: 06-07-30 S Longitude: 112-42-30 E.
Miles steamed: 142.6 Fuel used: 940.

Jan 11, 1943: Eleventh day.
Underway on surface, patrolling northern approaches to Surabaya.
0528: Sighted loom of searchlight over horizon bearing 170 T.
0538: Submerged on course 160 T, had obtained stars which resulted in
a fair fix.
1010: Sighted Madura Island to south.
1020: Course 022 T.
1143: Sighted Surabaya swept channel entrance buoy bearing 088 T,
distance about 3 miles.
1512: Sighted steamer bearing 065 T, distance about 13000 yards, angle
on bow 20 Port. GRENADIER position: Lat 6-26-00 S, Long 112-55-00 E.
Commenced approach.
16-16-41: Attempted to fire #2 tube - torpedo did not leave tube because
of sticky stop bolt, packing too tight.
16-16-52: Fired #4 tube.
16-17-01: Fired #3 tube. No explosions heard, tracks not seen, definately
torpedo run normal. Maru, similar to Rokko Maru, sighted
torpedo (s) and turned away to angle on bow of 170 starboard.
1622: Maru fired one shot from stern gun looked like a 3". Target
then became inquisitive and headed east, course 085.
1630: Started new setup for another attack, range now 1500 yards.
1636: Data seemed to be checking, still had large gyro angle, 50 deg-
rees right. GRENADIER swinging with hard right rudder to reduce the
gyro angle. Raised periscope for check prior to firing as gyro angle
had started toward zero at good rate; range 900 yards angle on bow zero
with Maru steady on GRENADIER.

page 4.

— page 112 —
1637: Went deep, had not seen any depth charges but could not be posit-
ive of their absence.
1655: After nothing happened came to periscope depth, nothing in sight
but a rain squall and black back ground. Surface search believed
impracticable because of nearness to Surabaya entrance buoy, and that
in all probability, Maru entered channel for that port.
1935: Surfaced. Violent rain squall and lightening during night.
1200: Latitude: 06-31-00 S. Longitude: 112-52-00 E.
Miles steamed: 138.4 Fuel used: 1105.

Jan 12, 1943: Twelfth day
Underway on surface.
0543: Submerged, weather overcast sea running high - no star fix.
0715: Sighted Bawean Island bearing 342 T, distance about 32 miles.
Obtained fair position by plot of bearings. Set course 194 T, allowing
for easterly set of about one knot, to arrive off entrance buoy to
Surabaya.
1056: Sighted masts of two vessels bearing 155 T, distance about 16000
yards. GRENADIER position: Lat 6-27-00 S, Long 112-52-00 E. Planed
up until could see leading vessel. Estimated angle on bow about 65
starboard. Vessel appeared to be medium sized tanker, and believed
second vessel to be escort or cargo ship. Atmospheric conditions not
permitting of better observation. Commenced approach, making standard
speed except during periscope exposure at intervals of ten to fifteen
minutes. GRENADIER gaining on bearing.
1222: Had closed sufficiently to determine that objective was about a
750 ton steamer towing a hulk barge of about 500 tons well loaded.
Original speed of target tracked at 5 knots, but as sea and wind
picked up, target speed was reduced to 3.3. Did not believe expenditur-
of torpedoes advisable and had not seen any guns on either vessel
decided to trail and attack from the surface after dusk.
1705: Joined formation third ship in column.
1912: Steamer turned on mast head and stern lights as well as cabin
lights. Barge showed one light. This made situation very satisfactory.
1950: Surfaced. Distance to target about four miles. Mounted 20MM,
two 30 cal. machine guns, installed only remaining good gun sight on
3" at pointer's position and lashed a pair of 7 x 50 binoculars to train-
er's telescope bracket. (The regular gun sights having flooded out a
week ago).
2021: Began closing target.
2042: Abeam of steamer. Lat: 06-33-00 S, Long: 112-31-00 E. Range
about 250 yards, backed to kill speed and opened fire with all guns,
concentrating first on deck house to place radio out of commission.
Then raked targets from bow to stern.
2059: Steamer on fire and settling with barge up on star-
board quarter; manouvered out of possible trouble.
2108: Resumed fire on barge with 3" and 20MM. Range, 200 - 250 yds.
2111: Ceased firing. Barge down by bow and settling, retired on course
300 T, at four engine speed.
2120: Steamer sank.
2215: Propulsion on two generators.
2335: Course 000 T, one generator.

page 5.

— page 113 —
1200: Latitude: 6-28-00 S. Longitude: 112-38-00 E.
Miles steamed: 136.9 Fuel used: 1000.

Jan 13, 1943: Thirteenth day.
Underway on surface. North west Surabaya.
0115: Course 090 T. Weather very much overcast with frequent rain
squalls.
0557: Submerged. No star fix.
0835: Obtained vague fix on Bawean Island.
0837: Sighted small submarine, hull down bearing 208 T. GRENADIER
position: Lat: 06-15-00 S. Long: 112-51-30 E. Clearing lines appeared
to be rigged with cutters, small gun, forward. Submarine's course 085
T. (If his gun was forward) Looked to be similar to Dutch O 9-11 boats,
possibly salvaged by Japs. Started approach, angle on bow about 65
degrees port, range about 7000 yards.
0845: Submarine had disappeared. Continued on in hopes it would reap-
pear, but was disappointed.
0921: Came to course 090 T, and resumed patrol. Visibility during day
ranging from 200 yards to 5 miles.
1939: Surfaced. Obtained star fix. Began patrol of N.E. approaches
Surabaya.
1200: Latitude: 6-16-00 S. Longitude: 112-56-00 E.
Miles steamed: 123.3 Fuel used: 720.

Jan 14, 1943: Fourteenth day.
Underway on surface N.E. of Surabaya.
0547: Submerged, having obtained stars for position.
0552: Course 221 for entrance buoy to Surabaya.
1600: Course 080.
1928: Surfaced.
2128: Received C.T.F. 51 serial 37, directing GRENADIER proceed Balik-
papan when productiveness of present area exhausted. Decided that area
had been quite well covered during past five days and having seen nothing
of shipping for two days believed it was being routed south of Madura
Island. Another day off Surabaya was one less off Bangkalihot, also
upon our return to Surabaya area perhaps weather conditions would be
better. Had obtained but three star fixes during past five days, fixes
on Bawean Island were poor at best where same could be seen. Java and
Madura could not be seen due to distance and atmospheric conditions and
still stay out of trouble presented by the mine field.
2200: Few stars out - obtained fix.
2245: Course 068: clearing Surabaya area.
1200: Latitude: 6-21-30 S Longitude: 113-02-30 E.
Miles steamed: 133.2 Fuel used: 800.

Jan 15, 1943: Fifteenth day.
Underway on surface - Surabaya Makassar line.
0528: Course 090.
0557: Submerged.
1816: Surfaced.
2254: Cleared GRENADIER serial TWO to C.T.F. 51.
2305: Course 040.

page 6.

— page 114 —
1200: Latitude: 5-40-00 S. Longitude: 115-40-30 E.
Miles steamed: 181.2 Fuel used: 1385.

Jan 16, 1943: Sixteenth day.
Underway on surface enroute Balikpapan.
0555: Sky was about fifty percent cloudy submerged.
1835: Surfaced.
2000: Course 350.
2200: Latitude: 4-13-00 S. Longitude: 118-11-00 E.
Miles steamed: 182.3 Fuel used: 1320.

Jan 17, 1943: Seventeenth day.
Underway on surface, enroute Balikpapan.
0202: Course 315.
0538: Submerged.
1305: Course 300 T.
1847: Surfaced on north east approaches to Balikpapan.
2250: Course 237 T, to reach position on Balikpapan - Aru Bank line.
1200: Latitude: 1-21-00 S. Longitude: 117-23-00 E.
Miles steamed: 148.1 Fuel used: 900.

Jan 18, 1943: Eighteenth day.
Underway on surface patrolling approaches to Balikpapan.
0531: Submerged on Balikpapan - Aru Bank line.
1910: Surfaced.
2000: Sighted ship bearing 344 T, distance about 5-6 miles. it having
cleared Balikpapan, was on course about 070 T. GRENADIER position:
Lat: 01-17-00 S. Long: 117-08-30 E. Began paralleling ship to determine
course and speed.
2100: Target course 070 T, speed 10.2 knots, range about 5 miles.
Moonlight too bright for surface attack and visibility insufficient for
submerged attack. Decided to keep ahead of target and make a submerged
attack at dawn.
2230: Sighted two ships bearing 005 T, distance about six miles, one
of which appeared to be a destroyer apparently headed for Balikpapan.
Did not attempt to close them having decided it best to remain with first
ship; not wishing to return to Balikpapan, attacking latter two upon
their exit from that port. GRENADIER position at this time: Lat:
1-05-00 S, Long: 117-31-30 E.
1200: Latitude: 1-29-00 S. Longitude: 116-55-00 E.
Miles steamed: 138.8 Fuel used: 795.

Jan 19, 1943: Nineteenth day.
Underway on surface tracking ship out of Balikpapan.
0124: Maru changed course to northward.
0200: Rounded mouth of Koetai River ahead of Maru, checking new course.
0245: Increased speed to get ahead of Maru for daylight attack having
established course as 008 T, also had to get across a 6 1/2 fathom spot
prior to diving.
0537: Submerged, target should be in sight about 0630:
0758: Surfaced - No target in sight, having determined that the Maru
did one of two things either changed to the left going much closer to

page 7.

— page 115 —
the beach or had changed course for Mangkalibat subsequent to the time
of GRENADIER having to increase speed. Earliest time arrival of south
west point of Mangkalibat for the Maru would be well after 1400 by
direct route. Also believed Maru to have been only ship in Balikpapan,
besides two spotted the night before so the best thing to do would be
to patrol off Mangkalibat until dark then return to Balikpapan as it
would probably be two days before the above two ships would depart.
Set course 055 T. for Mangkalibat.
1300: Submerged 4 miles south of Tg. Laboen Bini, patrolling 070 -
250 line.
1533: Sighted ship bearing 081 T, distance about 11 miles angle on bow
about 65 starboard. GRENADIER position: Lat: 00-47-00 N. Long:
118-53-30 E. Came to normal approach course at full speed which
speed was maintained except for looks about every 10 minutes, until
the approach was discontinued. At beginning of approach could see
but masts and top of stack from periscope depth of 50 feet, however
had hopes target would zig right and get into a favorable position.
1620: Sighted one mast and smoke from a second ship some distance off
the port bow of the Maru then under approach, at first thought it to
be original ship we were searching for, but as mast grew smaller came
to obvious conclusion that GRENADIER had seen a two ship convoy and was
in the wrong spot for a successful attack.
1627: With angle on bow of 105 starboard, range 9200 yards broke off
attack. Had established base course of Maru as 215 T, speed 15 knots.
Ship seen was similar to the Okita Maru.
1720: Maru disappeared on bearing 194 T. Remained in vicinity for two
reasons. The Maru sighted last night, by following the coast should
be approaching Mangkalibat about 1700-1800, there still remained a
chance of an attack. Second, if the convoy of this afternoon was stop-
ping at Balikpapan, would be off there tomorrow anyway, and with speed
available plus a needed battery charge could hardly overtake the ships
and gain position for an attack.
1818: Surfaced. Nothing in sight but the coast of Borneo. Set course
for Balikpapan 215T, at 13.8 knots. There should be four ships in
Balikpapan by tomorrow.
1200: Latitude: 00-35-00 N. Longitude: 118-36-00 E.
Miles steamed: 238.4 Fuel used: 2100.

Jan 20, 1943: Twentieth day.
Underway on surface, proceeding to Balikpapan.
0445: Course 249 T.
0546: Submerged. No fix. Changed course to 180. From sounding by
lead, believed GRENADIER to be north of line taken by ships leaving
Balikpapan, that is 070 T, line from lighthouse position and that a
fix set had been in effect.
1843: Surfaced.
1950: Having obtained star fix, changed course to 000, to get back
on Balikpapan line by 2300. By plot a 12 knot ship could be there at
the same time.
2251: Course 250 T.
1200: Latitude: 1-16-00 S. Longitude: 117-25-00 E.
Miles steamed: 172.7 Fuel used: 1235.

page 8.

— page 116 —
Jan 21, 1943: Twenty first day
Underway on surface. Patrolling N.E. approaches to Balikpapan.
0244: Course 225 T.
0535: Submerged. No fix.
0615: Course 250 T. Various courses during day patrolling Aru Bank.
Balikpapan.
1537: Sighted smoke in harbor.
1927: Surfaced.
1932: Observed signal station and a ship in the harbor signaling with
light. Began patrol of N.E. approach to Balikpapan. Assumed ships
leaving to north would depart at night and to south would depart by
morning.
2310: Sighted large circular buoy, about three feet in diameter, with
flag mounted on twelve foot pole. Lat: 1-14-00 S, Long: 117-11-30 E.
1200: Latitude: 1-27-00 S. Longitude: 117-54-00 E.
Miles steamed: 124.3 Fuel used: 530.

Jan 22, 1943: Twenty second day.
Underway on surface, patrolling N.E. approaches to Balikpapan.
0531: No fix possible took sounding with lead line; there was enough
water to get under.
0543: Submerged.
0700: Sighted smoke in harbor.
0706: Sighted mast of ship bearing 335 T. Thought to be entering
harbor from north east.
0718: Heard pinging on sound, ship previously sighted was patrol
vessel and following coast to west and south of harbor.
0725: Pinging from two sources.
0748: Course 180 T. to put stern to patrol vessels, and await develop-
ment.
0755: Sighted plane bearing 350 T. headed east. Could not identify
type because of poor visibility and range, however appeared to be a
rather large monoplane, blunt nose.
0908: Course 235.
0910: Sighted ship bearing 326 T, GRENADIER in Lat: 1-26-30 S, Long:
116-56-00E, distance about 7 miles with large port angle on bow.
Attempted to close target but could not, even at full speed between
looks. This AK followed about the ten fathom curve out of Balikpapan,
the closest GRENADIER came to target was about 10,000 yards. AK was
escorted by small patrol vessel about sub chaser size.
1005: Broke off attack when a cluster of booms and masts was observed
bearing 008 T, and no chance remained to attack the AK, angle on bow
then about 135 port, his speed about 12 knots. Good setup on TDC could
not be obtained because of targets following curved coast. GRENADIER'S
position: 1-29-00 S, Long: 116-52-00 E.
1029: Having decided that the targets to the north would not follow
coast changed course to northward.
1032: Began approach, range about 14000 yards.
1044: Two AK's about 7000 tons each.
1046: Two escorts took station, one a patrol vessel on port quarter
of second AK, the other a destroyer, TOMOZURU class, took station on
port bow of leading AK, later shifted to starboard bow of leading AK,
about 800 yards ahead.

page 9.

— page 117 —
1054: Observed leading AK to be towing second AK.
11-31-20: Began firing torpedoes at leading AK. Destroyer increased
speed and began changing his course to port shortly after first torpedo
was fired.
11-32-02: Began firing torpedoes at second AK. Had flooded negative
between fourth and fifth torpedoes as depth was decreasing. A few seconds
after fifth torpedo was fired, periscope went under. While still unable
to see, heard one explosion, followed by two more explosions. Upon
regaining periscope depth took a quick look around; the patrol vessel was
coming in on the starboard bow, then about 2000 yards away. As periscope
went by second AK had smoke coming out of her number one hold. Saw no
smoke from first AK when periscope swung by. Observed destroyer was
then about 1500 yards on our port bow and coming in fast. Went to 120
feet, rigged for silent running. Believe first explosion to be a hit
with large head on leading AK, as it was a little louder than the other
two explosions, and that the second AK was hit by two small heads.
All five torpedoes were heard to run normally. While but three explosions
were heard, only one torpedo was heard to keep running subsequent to the
explosions.
1136 to 1148: Ten depth charges, no apparent damage, however the general
impression was that they had a more metallic crack to them than any heard
heretofore.
1315: Both destroyer and patrol vessel were still pinging and circling
area but seemed to have opened out during the past half hour or so,
came to periscope depth. There appeared to be oil on the surface.
Sighted both the patrol vessel and DD about 7000 yards away, the first
toward the beach, the other to north east of GRENADIER. Sighted large
column of heavy black smoke bearing 329 T, south of the harbor. Restored
normal running conditions, steering various courses as DD and patrol
vessel conducted search, DD running circles around GRENADIER, while
the patrol vessel remained in the vicinity of the smoke sighted near
the beach. In mid afternoon patrol vessel proceeded toward entrance but
later came back and continued pinging.
2045: Surfaced.
2048: Four engines for propulsion.
2110: Sighted DD and patrol vessel bearing 235 T, distance about
4 miles. Changed course to 090 T. GRENADIER position: Lat: 1-38-00 S
Long: 117-02-00 E.
2240: Reduced speed to two engines and started battery charge. Decided
that another day's patrol off Balikpapan would produce no results and that
the time could be more profitably spent off Mangkalihut. Would have left
Balikpapan night of 23rd at latest in any event. Set course for Mangkalihut.
1200: Latitude: 01-27-30 S. Longitude: 116-51-00 E.
Miles steamed: 167.1 Fuel used: 1135.

page 10.

— page 118 —
Jan 23, 1943: Twenty third day.
Underway on surface, enroute Mar.gkalibat.
1259: Submerged twenty-five miles south of Tg. Paeloe Setebah.
1847: Surfaced. Established patrol 035 - 215 about 6 miles off coast
of Borneo. Mangkalibat as northern limit.
1200: Latitude: 00-13-00 N. Longitude: 118-37-00 E.
Miles steamed: 217.6 Fuel used: 1615.

Jan 24, 1943: Twenty fourth day.
Underway on surface, patrolling trade routes in vicinity of Tg. Maukali-
hat, Borneo.
0551: Submerged.
1908: Surfaced.
1200: Latitude: 00-48-00 N. Longitude: 118-59-30 E.
Miles Steamed: 96.3 Fuel used: 445.

Jan 25, 1943: Twenty fifth day.
Underway on surface patrolling trade routes in vicinity of Tg. Mankali-
hat, Borneo.
0531: Submerged. Set course to close beach and search coast for possible
grounded steamer.
1431: Having searched coast between Mangkalibat Light and a point about
12 miles south west from about a mile and a half off the beach with
negative results went back out to trade route.
1710: Back on possible trade route. Set course 035T.
1853: Surfaced.
1200: Latitude: 00-55-00 N. Longitude: 118-58-00 E.
Miles steamed: 83.6 Fuel used: 340.

Jan 26, 1943: Twenty sixth day.
Underway on surface, Patrolling trade routes in vicinity of Tg.Mangkalibat, Borneo.
0301: Carbon arc search light opened up direct on GRENADIER bridge,
relative bearing 330. Light coming from vessel in haze along darkened
coast, distance to light about two miles. GRENADIER position:
Lat: 01-02-00 N. Long: 119-03-00 E. Submerged. Considerable pinging was
heard.
0425 : Pinging had not been heard for about a half hour, so came to
periscope depth. Sighted small patrol vessel abaft the starboard beam,
bearing 236 T, distance about 1500 yards.
0428: Patrol vessel began pinging again and headed toward beach.
Until 1645, patrol vessel continued searching, pinging constantly.
Vessel was too small to attack with torpedo fire.
1853: Surfaced and set course for Makassar.
1200: Latitude: 00-50-30 N. Longitude: 119-12-00 E.
Miles steamed: 113.6 Fuel used: 505.

page 11.

— page 119 —
Jan 27, 1943: Twenty seventh day.
Underway on surface enroute approaches to Makassar.
0536: Submerged. Patrolling along west coast Celebes.
1846: Surfaced. Intermittent rain squalls during night.
1901: Latitude: 01-15-30 S. Longitude: 119-04-00 E.
1200: Latitude: 01-15-30 S. Longitude: 119-04-00 E.
Miles steamed: 156.8 Fuel used: 1180.

Jan 28, 1943: Twenty eighth day.
Underway on surface, enroute northern approach to Makassar.
0530: Submerged. No star fix, could see the coast, but unable to
identify peaks due to cloud formations.
0618: Identified light house on Pt. Mandar, distance about seven miles.
1905: Surfaced. Had experienced rather strong westerly current during
day.
1200: Latitude: 03-40-00 S. Longitude: 118-45-30 E.
Miles steamed: 179.2 Fuel used: 1470.

Jan 29, 1943: Twenty ninth day.
Underway on surface enroute northern approaches to Makassar. Many
Praus were sighted during the night necessitating numerous course changes
to avoid disclosing GRENADIER'S presence.
0531: Submerged within sight of coast but without star fix. However
close on the northern approach to Makassar, about five miles off the
beach. Rain and clouds made exact location impossible. The numerous
peaks many of which were similar could not be identified due to incomp-
leteness of charts.
1855: Surfaced. Still overcast, frequent rain squalls.
1200: Latitude: 04-13-00 S. Longitude: 119-28-00 E.
Miles steamed: 128.7 Fuel used: 400.

Jan 30, 1943: Thirtieth day.
Underway on surface patrolling northern approach to Makassar.
0532: Submerged. Position about same as yesterday. Rain and clouds
still prevail. Established same patrol as yesterday, that is squaring
the circle in half hour legs.
1223: Weather clearing somewhat, set course 160 to close entrance
and locate beacon if still existent.
1400: Rain to south, had not sighted beacon.
1423: Course 045 T, having become completely enclosed by heavy rain,
visibility almost zero. The reef would not be too far to the south.
Current today has been south west.
1852: Surfaced. Obtained first star fix since 27th. Set course for
western approach to Makassar.
1200: Latitude: 04-12-00 S. Longitude: 119-29-00 E.
Miles steamed: 135.9 Fuel used: 590.

page 12.

— page 120 —
Jan 31, 1943: Thirty first day.
Underway on surface enroute western approach to Makassar.
0228: Kapoposang Island bearing 110 T, distance about ten miles.
0530: Sighted Pu Lanyukang Island bearing 082 T.
0536: Submerged. Established patrol off western approach to Makassar
     about five miles west of Pu Lanyukang.
1217: Sighted mast bearing 106 T, distance about 7 miles. GRENADIER'S
     position: Latitude: 04-59-00 S, Longitude: 119-01-00 E.
1225: Vessel started out northern of the two approaches. Started
     approach.
1300: Fired three torpedoes, negative results. First torpedo ahead
     about 20 yards. Could not see wakes of other two, however they ran
     normally.
1306-8: Three depth charges, target then heading back into channel
     and did not reappear.
1855: Surfaced. Set course for south west approach to Makassar. Had
     intended to spend another day here but having had GRENADIER'S presence
     disclosed decided there was no use in remaining another day in the
     vicinity.
1200: Latitude: 05-00-00 S. Longitude: 119-01-00 E.
Miles steamed: 136.3 Fuel used: 565.

Feb 1, 1943: Thirty second day.
Underway on surface proceeding to southwest approach to Makassar.
0052: Received CTF 51 serial 76, directing GRENADIER conduct patrol off
     Makassar so as to arrive vicinity Saleier strait about February 2, 1943,
     thence to vicinity Pulassi Island, thence to Bali Strait departing
     latter place dark February 12, 1943.
0535: Submerged for patrol off south west approach to Makassar about
     five miles off reef.
1852: Surfaced. Set course for Saleier Strait.
1200: Latitude: 05-35-30 S. Longitude: 118-59-00 E.
Miles steamed: 127.6 Fuel used: 750.

Feb 2, 1943: Thirty third day.
Underway on surface proceeding to station at Saleier Strait.
0522: Submerged in Saleier Strait. Rain and reduced visibility had
     prevented getting through strait prior to diving. Proceeded through
     strait submerged. Experienced rather strong current to westward.
1200: Patrolling in an area two miles east and west, by five miles north
     and south, the center of area bearing 072 distance six miles from Saleier
     light.
1922: Surfaced. Established patrol on approaches to Saleier Strait.
1200: Latitude: 05-42-30 S. Longitude: 120-35-00 E.
Miles steamed: 114.9 Fuel used: 700.

Feb 3, 1943: Thirty fourth day.
Underway on surface patrolling eastern approaches to Saleier Strait.
0529: Submerged. Established patrol in same rectangle as yesterday.
1905: Surfaced. Established patrol on eastern approaches to Saleier
     Strait. Rain squalls during day and night.
1200: Latitude: 05-41-00 S. Longitude: 120-37-00 E.
Miles steamed: 87.2 Fuel used: 360.

page 13.

— page 121 —
Feb 4, 1943: Thirty fifth day.
Underway on surface patrolling eastern approaches to Saleier Strait.
Visibility poor because of rain squalls.
0522: Submerged. Established patrol in same area as yesterday.
1900: Surfaced. Have sighted nothing in this area during the past
three days except a few sail boats. Many lights appear on the island
at night. Set course for area in vicinity of Pulassi Island.
1200: Latitude: 05-42-00 S Longitude: 120-36-00 E.
Miles steamed: 96.6 Fuel used: 470.

Feb 5, 1943: Thirty sixth day.
Underway on surface, changing station from Saleier Strait to vicinity of
Pulassi Island.
0527: Submerged. Established patrol south of Pulassi Island Lat: 06-
49-00 S., between longitude 120-25-00 E and 120-31-00 E.
1902: Surfaced. Conducted patrol in same latitude extending the long-
itude about a mile each direction.
1200: Latitude: 6-49-00 S. Longitude: 120-28-00 E.
Miles steamed: 111.2 Fuel used: 580.

Feb 6, 1943: Thirty seventh day.
Underway on surface patrolling area in vicinity to Pulassi Island.
0520: Submerged. Patrolling same line as yesterday.
1906: Surfaced. Conducted same patrol as last night.
1200: Latitude: 6-47-00 S Longitude: 120-28-00 E.
Miles steamed: 94.0 Fuel used: 450.

Feb 7, 1943: Thirty eighth day.
Underway on surface patrolling area in vicinity of Pulassi Island.
0528: Submerged. Established same patrol as past two days.
1901: Surfaced. Have sighted nothing but two sail boats and a few
lights on the beach during the past three days.
1904: Course 249 T, on two generators. Patrolling the line between
Pulassi Island and Maria Reigersbergen banks prior to turning off for
tomorrow's patrol west of Sangeaing Island, N.W. of Sape Strait.
1200: Latitude: 06-48-00 S. Longitude: 120-25-00 E.
Miles steamed: 134 Fuel used: 910.

Feb 8, 1943: Thirty ninth day.
Enroute patrol area west of Sangeaing Island N.W. Sape Strait.
0526: Submerged about seven miles west of Sangeaing, patrolling
approaches to Sape Strait.
1900: Surfaced. Set course for possible convoy route in about lat:
7-45-00 S thence toward vicinity of Maria Reigersbergen Banks.
1200: Latitude: 8-12-30 S. Longitude: 118-44-05 E.
Miles steamed: 154.3 Fuel used: 1345

Feb 9, 1943: Fortieth day.
On surface patrolling route east of Maria Reigersbergen Bank, course
265 T.
0544: Submerged. South east of Maria Reigersbergen Bank.
1840: Surfaced. Proceeded to station at northern entrance to Bali
Strait. Strong wind and frequent driving rain squalls experienced
during the night.
page 14.

— page 122 —
1200: Latitude: 07-51-00 S. Longitude: 117-25-00 E.
Miles steamed: 174.2 Fuel used: 1630.

Feb 10, 1943: Forty first day.
Enroute station at northern entrance Bali Strait. Rain and high wind
continuing.
0603: Submerged. Patrolling area averaging 3 1/2 miles from Duiven
Light, north entrance Bali Strait.
1924: Surfaced. Patrolling north south line 5 - 7 miles east of Java.
Wind and frequent rain squalls during night.
1200: Latitude: 8-03-00 S. Longitude: 114-30-30 E.
Miles steamed: 148.1 Fuel used: 1470.

Feb 11, 1943: Forty second day.
Patrolling north south line 5 - 7 miles east of Java.
0554: Submerged, patrolling in same area as yesterday.
1924: Surfaced. Patrolling north south line east of Java. More rain
and wind during night.
1200: Latitude: 8-00-00 S. Longitude: 114-31-00 E.
Miles steamed: 97.2 Fuel used: 430.

Feb 12, 1943: Forty third day.
Patrolling north south line 5 - 7 miles east of Java.
0545: Submerged. Patrolling same area as yesterday.
1901: Surfaced. Began return trip to Fremantle W.A. Visibility today
has been fair to bad due to rain squalls.
1200: Latitude: 8-02-00 S. Longitude: 114-29-00 E.
Miles steamed: 123.1 Fuel used: 1090.

Feb 13, 1943: Forty fourth day.
Underway on surface enroute Fremantle, W.A.
0245: Completed transit Lombok Strait set course 229 T for station
in accordance with C.T.F. serial 98. Heavy weather overcast and rains
made detection highly improbably if remained on surface. Could make but
about eight and a half knots and in order to gain desired station could
not submerge and still make the required distance. Able to make about
ten and a half knots by mid-afternoon.
1200: Latitude: 09-52-30 S Longitude: 114-28-00 E.
Miles steamed: 251.4 Fuel used: 3910.

Feb 14, 1943: Forty fifth day.
Underway on surface enroute to station in Lat: 11-29-30 S, Long: 112-
34-30 E.
0545: On station by D.R., have had no fix since leaving Lombok, visibil-
ity poor.
0633: Submerged. Patrolling station on 140 - 320 line one point five
miles each side of Lat: 11-29-30, SLong: 112-34-30 E. Surfaced.
Set course for Exmouth Gulf.

page 15.

— page 123 —
Feb 15, 1943: Forty sixth day.
Underway on surface enroute Exmouth Gulf, W.A.
1200: Latitude: 14-40-00 S. Longitude: 113-19-00 E.
Miles steamed: 275.5 Fuel used: 2705.

Feb 16, 1943: Forty seventh day.
Underway on surface enroute Exmouth Gulf, W.A.
0607: Submerged.
0625: Surfaced.
1700: Started six hour battery discharge.
2325: Secured battery discharge.
1200: Latitude: 19-08-30 S. Longitude: 113-46-00 E.
Miles steamed: 249.2 Fuel used: 1685.

Feb 17, 1943: Forty eighth day.
Underway on surface enroute Exmouth Gulf, W.A.
0634: Sighted one P.B.Y. bearing 145 T, distance 7 miles.
0715: Sighted HMS TRUSTY, bearing 195 T, distance 7 miles.
0942: Moored starboard side to fuel oil barge Exmouth Gulf, W.A.
1000: Began transferring fuel oil to barge.
1205: Ceased transfer of fuel having delivered 20,795 gallons, diesel
fuel oil to barge.
1215: Underway from alongside barge enroute Fremantle, W.A.
1550: Sighted one P.B.Y. bearing 280 T, distance 7 miles.
1639: Submerged for trim and test of pumps at 200 feet.
1714: Surfaced.
1200: Latitude: 22-11-00 S. Longitude: 114-07-00 E.
(Fuel oil barge, Exmouth Gulf, W.A.).
Miles steamed: 273.5 Fuel used: 3450.

Feb 18, 1943: Forty ninth day.
Underway on surface enroute Fremantle, W.A., via bombing restriction
lane.
1200: Latitude: 24-57-00 S Longitude: 112-11-30 E.
Miles steamed: 248.9 Fuel used: 3240.

February 19, 1943: Fiftieth day.
Underway on surface enroute Fremantle, W.A., via bombing restriction
lane.
1200: Latitudes 29-15-00 S Longitude: 113-00-00 E.
Miles steamed: 314.3 Fuel used: 4130.

February 20, 1943: Fifty first day.
Underway on surface enroute Fremantle, W.A. via bombing restriction
lane.
0126: Sighted Rottnest Island light bearing 136 T, distance 25 miles.
0328: Met at rendezvous by U.S.S. WHIPPOR:ILL and escorted into
Fremantle Harbor.

page 16.

— page 124 —
WEATHER
Typical weather as stated in the pilot for the area covered during
this patrol. Frequent rain squalls, wind, and poor visibility the maj-
ority of the time.

TIDAL INFORMATION
In general an eastern set prevailed, for Java sea averaging 110
T, drift about one knot. Off Balikpapan set north east about .7 knot.
Makassar Strait set contrary to pilot, averaging about 020 T, drift about
.5 knot.
From east of Seleier Strait current set averages 115, drift about .8
knot. South of Pulassi average set 085, drift, about 1.1 knot. In the
vicinity of 8 degrees south latitude between Sape Strait and Lombok
Strait, the set is easterly averaging a little over one knot.
Around northern entrance to Bali Strait current averages about 030 T,
drift about .5 knot.

NAVIGATIONAL AIDS
No navigational aids were observed to be lighted.

page 17.

— page 127 —
ATTACKS
No. 1: Battle surface on sixty ton schooner. Opening range about
         1000 yards, closed to 500. Used 3"/50 cal, 20MM and 30 cal.
         machine guns. Sank schooner, which flew the Japanese merchant
         flag. Latitude 06-18-30 S, Longitude 112-43-00 E. Target
         course 100 T.

No. 2:
         Location : 6-24-30 S. 112-54-00 E
         Type : AK (About 3000 tons)
         Number torpedoes fired : Two.
         Firing interval : 9 sec.
         Point of aim : M.O.T. (Stack).
         Off set : 2L, 2R.
         Gyro angle : 353.8, 350.5.
         Track angle : 105 P, 105 P.
         Depth setting : 4', 2'.
         Enemy course : 260.
         Enemy speed : 8.3

No. 3. Night surface attack on 750 ton steamer towing a 500 ton barge.
         Course 280 in latitude 06-33-00 S, longitude 112-31-00 E. Con-
         centrated first on bridge area to eliminate possible radio
         report. Then shelled both targets. Had but one telescope
         sight installed at pointer's position. The 7 x 50 binoculars
         lashed to trainer's sight bracket did not prove satisfactory,
         however the luminous ring and luminous dot installed on the
         open sight facilitated picking up target, trainer further being
         coached on by pointer. Sank both vessels using 3"/50, 20MM,
         and 30 cal machine guns. Average range about 250 yards.
         Sea condition: heavy swell in moderate sea; wind force 5.

No. 4:
                                 FIRST SHIP           SECOND SHIP
         Location (Both) : 01-28-00 S         116-52-00 E
         Type : AK                    AK
         Number torp. fired : 3                    2
         Firing interval : 10 sec                 10 sec
         Firing range : 1930                  1870
         Point of aim : M.O.T.                M.O.T.
         Offset : 3L, 0, 3R.          3L, 0.
         Gyro Angle : 003-45, 003, 002        010, 009.
         Track angle : 99.5P, 98P, 96P.       93P, 91P.
         Depth setting : 0 0 0                0 0
         Enemy course : 194                   194
         Enemy speed : 5.7                    5.7

page 20

— page 128 —
No. 5:
Location : Lat: 04-58-00 S Long: 119-01-00 E.
Type : Steamer of about 1000 tons.
Number torp. fired : 3
Firing interval : 11, 13 sec.
Firing range : 690, 680, 680.
Point of aim : Stack.
Off set : 4L, 0, 4R.
Gyro angle : 00-15, 354, 347-15.
Track angle : 120P, 122P, 124P.
Depth setting : 0 0 0
Enemy course : 311
Enemy speed : 11.5

ENEMY A/S MEASURES

Anti-submarine measures employed by the enemy consisted of listening
while stopped and pinging while underway. The employment of depth
charges by the small Maru on January 31, could have been for no other
purpose than that of embarrassment as the vessel was about 1000 yards
away when the charges were dropped.

The A/S measures off the northern entrance of Surabaya were nil,
only one Corvette having been sighted. Strongest A/S measures found
to be off Balikpapan.

A/S vessels were hampered in their search by poor sound conditions
in shallow water.

page 21.

— page 129 —
MAJOR DEFECTS EXPERIENCED

Fathometer grounded out on January 7, 1943. Unable effect repair
at sea.

During battle surface January 10, 1943, #1 main engine was flooded
because of opening outboard exhaust valve too soon. Nozzle drains were
closed. No damage resulted and water was removed by jacking over by
hand. However inspection of lower crank case revealed a nut and stud
bolt in the after strainer, inspection of lower pistons revealed the nut
and stud to be from #9 unit. This piston removed and replaced with spare.
Insert stud had broken off flush in crown of piston, the threads on both
stud and nut were completely stripped, piston in otherwise good condition.

January 11, 1943 during routine inspection crankcase #4 M.E. discovered
loose pieces of bearing metal under # 6 upper connecting rod bearing.
About 40% of the bearing metal for the lower half had flaked off while
but about 2% of the upper half of the bearing metal was gone. The con-
necting rod journal was in good condition. No evidence of excessive
heating of bearing was apparent. Both upper and lower bearings were
replaced from spares.

During routine inspection of #3 M.E. on January 18, 1943, discovered a
broken main bearing nut lying in upper crank case beneath #1 upper crank
A section approximately equal to one-sixth of the nut was sheared out;
this piece being later found under the timing chain. Nut had came from
the bottom end of #1 upper main bearing on the outboard side of the
engine. A broken cotter pin from this unit was found lying in the for-
ward end of the lower crank case. Apparently this casualty developed
as follows: Cotter pin carried away allowing nut to back off and fall
to the after end of recess. Crank arm of #1 upper crank struck nut shear-
ing out section described above.
Further inspection revealed that the lubricating oil supply line to #1
upper main bearing was broken in two at bearing fitting. The break
probably being due to the vibration set up in the engine when the crank
arm struck the nut. Renewed #1 main bearing bolt complete, repaired
damaged lubricating oil line. Engine out of commission twelve hours.

TORPEDO GYROS: During routine checks of torpedoes the following defects
were discovered: January 20, 1943: Torpedo #93719. The gyro was found
to stick at one point when rotated in its outer gimbal ring. The gyro
was then pulled from its pot disclosing much rust formation in the top
ball bearing and its race. No apparent clearance existed between the
outer and inner gimbals, no doubt rust taking up the space. This torpedo
had been neither subjected to a flooded tube nor in air pressure of any
description, other than atmospheric, since receipt on board. Various
conclusions may be drawn as to the actual cause of this condition, the
most likely being moisture in the air used for the deck run or moisture
in air used to blow off excess oil subsequent to deck run. Gyros
were then removed from all torpedoes and carefully inspected, results
as follows: Torpedo #17913: a 1/2" piece of three strand string was
found in the top ball bearing. Torpedo #17946: lower bearing post studs
hit the after inner gimbal bearing cap as inner gimbal turned in outer.
This had not previously been apparent while gyro was still in the pot.
The cap had the appearance of previous filing to give clearance.

page 22.

— page 130 —
Torpedo #1577: evidence of an imperfect ball in #1 outer gimbal bearing.
When rotated the inner gimbal stopped at the same place each time it
was rotated, not with a free swinging motion as would be normal, but a
definite stop at this point accompanied by a slight chattering in the
bearing. Torpedo routine had been accomplished every four days prior to
discovering the defect in #13719, at which time all gyros were pulled
for minute examination.
February 15, 1943: Number 5 unit crankpin bearing, #4 M.E., sustained
a casualty similar to that of #6 unit on January 11, 1943. Lower half
badly chipped, upper half and journal in good condition. Replaced this
bearing with a spare. Both #4 and #6 units were in good condition.

Roots Connersville L.P. air compressor: Complete disassembly at sea
revealed a severe crack in the gear and head plate around the driving
shaft bearing housing. This crack is apparently the cause underlying
the faulty and noisy operation of this blower during the past year.

REMARKS

The habitability during the patrol was very satisfactory; tempera-
ture within the ship ranging between 88F and 90F, considering the high
injection temperature, this is about as good as could be expected. With
the exception of six cases of Gonorrhea, which developed after leaving
Fremantle, one case of infected jaw and a little seasickness, the health
of officers and crew was very good. The Gonorrhea cases will be turned
over to the tender for continuation of treatment as found necessary.

Telescopic gunsights that will not flood, while submerged, cannot be too
strongly recommended. Not only is it believed that ammunition can be
conserved but it is very important to place that first shot, as well as
the remainder of shots, where it will do the most good. While the lumi-
nous ring and dot installed in the open sights facilitated getting on
the target at night, such sights cannot take the place of a good, dry,
telescopic gun sight.

The 20MM gun is a very efficient and effective weapon, would like to
have at least two mounts, one forward of the bridge in addition to
the one now installed on the after bridge. (Cigarette deck).

In general communications were very satisfactory; while on station,
9250 Kc's proved to be the best frequency. The only trouble experienced
was in clearing GRENADIER serial ONE through VIXO which station was
trying to send press and work GRENADIER at the same time. After five
attempts in an hour and a half to clear our seven PM group message,
we secured, although VIXO was still asking for repeats on certain groups
in between press releases. The following night, GRENADIER serial ONE
appeared on VIXO schedule as encoded. At first, when unable to clear
message was concerned that a Jap might be asking for this report to
better cut in our position, no doubt the delay in transmission was
a help to them in that respect.

page 23.

— page 131 —
Sound conditions were from poor to excellent probably the best
being west of Makassar. The JK projector shaft- while serviceable -
is not in alignment and considerable water leakage is experienced via
the glands. In spite of this the tender is to be commended on the
work accomplished from the material at hand, in placing the projector
in a serviceable condition. It is hoped that a new projector
shaft will be available for installation during the current refit.

The loop antenna grounded out the first week, therefore no comment
can be made regarding its use for underwater reception. For shallow
water operation it is considered that far too many confidential and
secret publications are carried by our submarines.

. . page 24.

— page 132 —
FC5-6/A16-3
Serial # 069
C-O-N-F-I-D-E-N-T-I-A-L

SUBMARINE SQUADRON SIX (6/Mc)
U.S.S. TAUTOG, Flagship,
February 27, 1943.

FIRST ENDORSEMENT to
C.O. GRENADIER ltr.
SS210/A16-3 Serial
02 of 2-20-43.

From: The Commander Submarine Squadron SIX.
To : The Commander Task Force FIFTY-ONE.
Subject: U.S.S. GRENADIER - Fifth War Patrol - Comment on.

1. The GRENADIER's fifth war patrol covered a period
of fifty-one days of which thirty-seven were spent north of the Malay
Barrier; this was the GRENADIER's first patrol under her present
Commanding Officer.

2. The performance of material with the exception of
the casualty to #3 main engine is considered excellent. Two main
engines are being completely overhauled during the current refit
period by the Relief Crews with a complete replacement of liners,
injectors and piston rings of the latest approved design. Extreme
difficulties have been encountered not only in the GRENADIER but in
other submarines as well in making and maintaining the NM sound head
water-tight. It is believed that after recent experiments, a solution
to this problem has been reached by the insertion of a 1/8" special
cut wire inserted rubber gasket. The bridge structure is being al-
tered in accordance with the SILVERSIDES plan. A 20 MM gun in
addition to the one aft is being installed in the forward position.

3. Health and habitability were, in general, very good.

4. Assigned patrol areas were thoroughly covered by
the GRENADIER; determined attempts were made to develop all contacts
and aggressive attacks were made with torpedoes and gunfire. Results
of torpedo fire were disappointing; out of ten torpedoes fired only
three hits were made and these were not positively confirmed. The
wakes of the torpedoes fired on the attack of January 11 were appar-
ently seen by the target which successfully maneuvered to avoid.
Other misses, it is believed, were due to control errors. Three depth
charge explosions were reported six minutes and eight seconds after
the firing of three torpedoes on the attack of January 31; it appears
likely that these explosions might have been war heads instead of
depth charges. Defects reported in torpedo gyros have been corrected
and steps taken to prevent their repetition. The GRENADIER is credited
with inflicting the following damage on the enemy:

SUNK
1 Schooner 60 ton
1 Tug 750 ton
1 Barge 500 ton
1310 ton

DAMAGED
2 AK's 14000 ton

[SIGNATURE: A. R. MCCANN]
A. R. MCCANN.

— page 133 —
4 0152
Ly

FE24-51/A16-3
Serial 0331
SUBMARINES, SOUTHWEST PACIFIC
U.S.S. TROUT (SS202) FLAGSHIP

C-O-N-F-I-D-E-N-T-I-A-L
March 3, 1943.

SECOND ENDORSEMENT to
CO GRENADIER Conf. ltr.
SS210/A16-3 Serial 02
of 20 February 1943.

From: The Commander Task Force FIFTY ONE.
To : The Commander in Chief, U.S. FLEET.
Via : The Commander Southwest Pacific Force.

Subject: U.S.S. GRENADIER - Fifth War Patrol - Comment on.

1. Forwarded, concurring in the remarks contained in
the first endorsement, except as noted in paragraph 4.

2. The GRENADIER operated for a considerable part of
this patrol in relatively shallow water in spite of the handicap
resulting from the failure of the fathometer.

3. Although the damage inflicted was below average,
the patrol was marked throughout by a spirit of aggressiveness,
which, with additional experience will produce maximum results
on future patrols.

4. While it is possible that hits were obtained in both
freighters of the convoy attacked 22 January, there is no definite
evidence of damage to the leading ship. The GRENADIER is credited
with inflicting the following damage on the enemy:

SUNK DAMAGED
1 schooner 60 tons 1 freighter 7,000 tons
1 tug 750 tons
1 barge 500 tons
Total 1310 tons

[SIGNATURE: arsuillann]
A.R. McCANN.

DISTRIBUTION
COMINCH (2) (Via Comsouwespacfor)
VICE OPNAV (1) ("
CINCANFLT (1) ("
CINCPACFLT (1)
COMSOUWESPAC (1)
CO SOUPACFOR (1)
COMSUBSPAC (5)
COMSUBSLANT (2)
COMTASKFOR 42- (2)
COMSUBRON-6 (1)
DIV COMS,RON-6 (1)
EACH S/M W.A. (1) (NOT TO BE TAKEN TO SEA-BURN)

— page 134 —
SOUTHWEST PACIFIC FORCE
R.S. No. [HANDWRITTEN: 2129]
[HANDWRITTEN: 4 6152]

March 17, 1943.

A16-3

Serial 0359

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

THIRD ENDORSEMENT to
C.O. GRENADIER Conf. ltr.
SS210/A16-3 Serial 02
dated 20 February 1943.

From: The Commander Southwest Pacific Force.
To : The Commander in Chief, U.S. FLEET.

Subject: U.S.S. GRENADIER - Fifth War Patrol - Report on.

1. Forwarded.

[SIGNATURE: J. Cary Jones]
J. CARY JONES,
Chief of Staff.

[STAMP: COMMANDER IN CHIEF]
[STAMP: U.S. FLEET]
[STAMP: RECEIVED]
[HANDWRITTEN: 1943 APR 3]
[HANDWRITTEN: 9 47]

Copy to:
Vice OPNAV. (1)

— page 135 —
UNITED STATES
SUBMARINE LOSSES
WORLD WAR II

Reissued with an Appendix of
Axis Submarine Losses, fully indexed,
by
Naval History Division
Office of the Chief of Naval Operations
Washington: 1963

— page 136 —
GRENADIER (SS 210)

Patrolling in Lem Voalan Strait in the northeast Indian
Ocean, on her sixth war patrol, GRENADIER under
Lt. Cdr. J. A. Fitzgerald met her end on 22 April
1943. The following account of her fate is taken from
statements made by her Commanding Officer and five
of her men after they had been recovered from Japa-
nese camps.

On the night of 20 April 1943, having had poor hunt-
ing for two or three days in Lem Voalan Strait (north-
west of Penang on the Malay Peninsula), GRENADIER
ventured out ten miles west of that place to see what
she could find. She found two ships, but before she
could attack, they turned away. Figuring that they would
come back to their original course in an hour and a
half, Fitzgerald planned an attack to meet them on their
course at that time. About 15 minutes before time to
attack, a plane came in on GRENADIER, and she dived.
As she was passing 120
feet, a violent explosion shook the ship, and all lights
and power were lost. She was brought to rest on the
bottom at about 270 feet. The hull and hatches were
leaking badly aft, and a fire in the control cubicle kept
the motors dry, and later a "jury rig pump" was called into
service to perform the task, while the electricians
worked all day to restore propulsion. Several men were
prostrated by heat and exertion, but the work went on.

At dusk, GRENADIER surfaced and continued the
work of trying to restore herself. Finally, they were
able to turn over one shaft very slowly, but everything
possible had been done, and no more speed could be
expected.

Toward morning what appeared to be a destroyer,
but was actually an 1800-ton merchantman, and an
escort vessel were seen on the horizon, and a plane
was driven away by gunfire. The skipper decided to
scuttle the ship then, rather than risk his men from
being taken prisoner by the enemy merchant ship. The
statements of the men relate the brutal treatment they
received at the hands of the Japanese and how their
spirit was kept up by their Commanding Officer. The
enemy gained no information from this gallant crew,
despite the worst they could inflict, and all but four
members of the crew were recovered from prison
camps at the close of the war.

J. A. Fitzgerald

GRENADIER's record prior to her loss was six
ships sunk, for 40,700 tons, and two ships damaged, for
12,000 tons. Her first patrol, beginning in February
1942, was conducted off the coast of Japan, and GRE-
NADIER sank a freighter. Going to the Formosa ship-
ping lanes for her second patrol, GRENADIER sank a
large transport and a freighter. On her third patrol,
she sank a large tanker. GRENADIER's fourth patrol
was a mining mission in the South China Sea, and she
damaged no enemy shipping. On her fifth patrol, this
sub patrolled the Java Sea area, and sank two small
freighters and a sampan. In addition she damaged a
freighter.

46

— page 138 —
[STAMP: SECRET]
CLASSIFICATION REDUCED TO
DECLASSIFIED
BY AUTHORITY OF
CNO LTR INST. 5510.1
DATED 16 JUN 63
By [HANDWRITTEN: ECN] Date [HANDWRITTEN: 9/24/57]

[STAMP: DECLASSIFIED]

USS GRENADIER (SS-210) - Statement of Lieutenant Commander
J. A. Fitzgerald, USN, Commanding Officer.

ENCLOSURE (C)
[HANDWRITTEN: TO SUSS PAC, SER 00349, 21 SEP 45]

— page 139 —
9 September 1945.
[HANDWRITTEN: 6th patrol]

STATEMENT OF COMMANDER FITZGERALD:

Having been in Lem Valon Strait for two or three days
without seeing any target I decided on the night of 20 April
1943 to go about ten miles to the west of Lem Valon Strait to
see if I could find anything out there. At about 2030 or 2100
the O. O. D. thought he saw smoke, so continued on my westerly
course and later on saw smoke coming from two merchant men.
The moon being full and visibility excellent I decided to go
across the stern of the two ships, get their course and then
get on the downtown side, ascertain their speed, continue on
and get into position ahead of the column. Due to visibility
conditions, or Jap radar, they found out that I was off their
port quarter. I had just that evening checked my SJ radar at
16,250 yards. At the time the merchant men turned their search-
lights in my general direction, I had not yet obtained radar
range on the ships which were probably 8 or 9 miles away.
Eventually the Japs turned to an easterly course and I got ahead
of their column and submerged to await attack. Just at early
dawn the two ships changed to a southerly course. At about 7
o'clock the ship were out of sight, yet their smoke was still
visible on the horizon. Assuming that in accordance with known
Japanese convoy doctrine at the end of an hour or an hour and
a half the convoy would resume an easterly course, I surfaced
on course 155° which would place me in an attack position in
about one hour and forty-five minutes. About 15 minutes before
arriving in position to dive and be in readiness for attack the
lookout cried out "plane, port quarter". Not wishing to be de-
ceived by having it turn out to be some bird or false alarm,
I turned around and identified the object as a plane myself.
Thereupon I ordered the ship to submerge.

At 0837 the ship was passing 120 feet when the Executive
Officer said, " we ought to be safe now, as we are between 120
and 130 feet." Almost at once "two express trains collided".
I had previously at 90 feet, ordered right 15° rudder. The
force of the explosion healed the boat over 10° or 15°. All
lights and power were lost. I continued on down toward the bottom,
at the same time the maneuvering room was attempting to re-
establish power. At about 200 feet the word was received
"fire in maneuvering room". So I set the boat down to the bottom
at 267 feet of water. Immediate success was not obtained in
extinguishing the fire so I ordered the compartment sealed.
After about a half an hour or so later the compartment was
entered using lungs as respirators, and CO2 fire extinguishers.
The fire was in the hull insulating cork, cables, stores and
cleaning rags; which fire had been caused by the power cage
and the overhead of the maneuvering room coming together cutting
the power cables above the control stand. Also due to sparks
coming from the control stand. The maneuvering room induction
valve was so badly warped that the flapper valve had been forced

- 1 -

— page 143 —
9 September 1945.

NOTE: Five members of the GRENADIER crewhave, I understand,
died in prison camps. Lt. WHITING is at 15 B or D or 22 B
or D to the northward of NAOETSU, JAPAN. The last I saw of
him was about the 5th of March. I do not know where Lt. D.K.
HARTY is or Lt. J.N. CRITCHLOW. From my talks to the men all
are accounted for except five who are believed to be dead.

— page 144 —
U.S.S. GRENADIER (SS 210) - Statement of K. D. Harty, Lieutenant,
United States Naval Reserve.

ENCLOSURE (C) 10

— page 145 —
STATEMENT OF LIEUTENANT K.D. HARTY, U.S.N.R. UPON
ARRIVAL IN GUAM, M.I. - Lieutenant Harty was attached
to the U.S.S. GRENADIER at time of her sinking.

On patrol 300 miles north of Penang near Pokit about 20 April 1943.
April 20, 1943-2000- Sighted two tankers at 12,000 yards - sought attack posit-
ion on surface. Sighted by ships who fired wild and turned on searchlight. Pulled
off and continued to track and attempted to gain position. Tankers sent distress
signals on 500 Kc most of night.
An hour before sunrise April 21, 1943. Lieutenant Harty on after TBT cutting in
smoke when lookout reported 2 engine plane bearing doubtful 90°T. Dove immediately.
Lost diving control at 85 to 90 feet but diving control regained and obtained depth
of about 100 feet when bomb exploded. Sounded as if it was over the conning tower.
Lights went out, gunge glasses broke, including sight glass on hydraulic re-
plenishing tank. Periscope leaked some. Emergency lights turned on. Main motors
out of commission due to water in maneuvering room and small electrical fires. Main
source of water in maneuvering room due to leaks around wiring packing glands in
overhead.

Bottomed at 276 feet of water.
On investigating damage discovered bomb had exploded near MR-ATR bulkhead. Door
between MR & ATR was sprung preventing complete closing. Numerous small hull leaks,
greatest leak was around loading hatch, large spray. Forward end, starboard side
ATR had hull dished in about 4-6 inches at head level. After tubes slightly out of
line.

Intermittent electrical fires broke out throughout the day in MR, resulting in ex-
tremely difficult working conditions. Several men passed out while working. The
fires and leaks were continuously undoing previous work accomplished toward main
propulsion repairs.
Radio transmitter knocked off foundation and later reported back in commission.
Later discovered antenna trunk insulator broken. Five or six antenna insulators
broken.
Philco auxiliary receiver broken from fall to deck.
SJ appeared to be all right but not tested. SD gas tube had been out of
commission for two weeks. Radio transmitter out of tune and keying relay inoperable.
Lieutenant Harty spent considerable time during the day preparing publications for
destruction. All hands joined bucket brigade to help transfer water from ATR bilges
MR bilges.

Bled some oxygen in boat during the afternoon.
Decided to surface at dark to continue attempt to obtain main propulsion without
hindrance from leaks.
Surfaced about an hour after dark. Lieutenant Sherry, diving officer, surfaced
boat on even keel.
All night work failed to obtain sustained operation of either shaft.
Sent message at five or six in morning of April 22, 1943, in British number code
giving condition of ship and intentions to abandon GRENADIER.
Sighted two ships at dawn 22nd April, 1943. One coastwise-type naval vessel and
small patrol yacht. While these vessels were approaching, sighted single engine plane
headed towards submarine. Manned 20MM's. Opened fire on plane when it came into
range, made several hits during plane's glide, causing bomb approach to be less effect-
ive, hits caused plane to swerve. Bomb was released falling about 100 yards off star-
board beam. Plane departed. Later learned at Penang we had killed pilot who crashed
on landing.

Ships continued approach and signalled us to surrender. Sank publications.
Smashed SD & SJ, XYZ, radio equipment, TDC and CT sound gear.

- 1 -

10 558 11

— page 146 —
Crew lined up on deck in life jackets when Commanding Officer gave the order to
abandon ship. All jumped over the side except Captain and Chief of boat. Withrow who
opened vents with remaining hydraulic power after which Captain and Chief of boat
jumped overboard. Ship sank stern first. Sick and non-swimmers wore in rubber life
boats.
     Japs circled in their ships and took pictures before coastal-type vessel picked up
submarine crew via "jacob's ladder". All officers and crew were picked up, and taken up
to Penang next morning. Captain, Executive Officer and Lieutenant Harty were questioned
for about a week at Penang before departure.
     Barker, M2c left at Singapore with diptheria in August 1943, hasn't been heard
of since.
     Have not heard of survivors of other submarines, except SCULPIN, S-44, and PERCH.
     Frequent beatings at Penang, mostly with clubs. Captain received worse treatment
including water forced down his nose and knives under his fingernails. Food consisted
of one very small dish of rice after the first five or six days without food at all.
     Lieutenant Harty was flown with Commanding Officer and Executive Officer to OFUNA
prison camp. Arrived on 1 May 1943.
     Guards at OFUNA were very brutal in their treatment of prisoners. Everything
possible was done to make living unpleasant. Speaking was not permitted by prisoners.
Men were frequently beaten. Food was well prepared but quantity was too small for
good health. Lack of food was due to theft of food supplies by guards, plus usual Jap
food policy toward prisoners.
     FUJIWARA, Torpedoman's Mate by rate in Japanese forces was acting camp PM and
was very sadistic in treatment of prisoners, and insanitary and ineffectual in Medical
treatment.
     Lieutenant Toulon was beaten with fists when he was sick.
     HIRABIYA, S1c was worse of guards, was sadistically brutal in beating prisoners.
KUBIYA, PO2c was also brutal and sadistic.
     Commander Shinimatsu, Imperial Navy, chief questioner, directed guards to punish
prisoners for failure to satisfactorily answer officers' questions.
     Warrant officer IDO (or IDA) in charge of camp, cognizant of treatment of prison-
ers and did nothing about complaints of prisoners.
     Left OFUNA March 15, 1944 and was taken to ASHIO copper mines.
     Left ASHIO in September 1944 for ZENTSUI. At ZENTSUI men named KOBIASHI was
interpreter and was known for brutality and mistreatment of prisoners of war. There
also was a doctor named SAITO, who deserves punishment for neglect and ill treatment.
     Red Cross material at ZENTSUI and ASHIO was withheld despite dire need in winter.
     Left ZENTSUI on 25 June 1945 and went to HOKUROSHI in FUKUI prefecture. Food
was very scarce and rations continuously cut. Men were forced to "volunteer" to work
in order to get enough rice to sustain life.
     Camp commander HABE, formerly at OSAKA headquarters was at HOKUROSHI.
     FUJIMOTO, interpreter - believed responsible for making conditions disagreeable.
He formerly had lived in the United States. This man is considered to be very intelli-
gent and extremely clever, very apt to talk himself out of trouble.

K. D. HARTY.

12

— page 148 —
12 September 1945.

I boarded the U.S.S. GRENADIER (SS-210) 11 October 1942 at
Albany, Western Australia. The GRENADIER was under the command
of Lieutenant Commander J. A. Fitzgerald. Left Freemantle, Aus-
tralia, 20 March 1943; destination, Strait of Malacca. This was
our SIXTH PATROL. Strait of Malacca was virgin territory to our
submarines and we found the water very shallow and navigation
difficult. Took pictures of North end of island.

April 19, 1943 we surfaced 0600 and chased two tankers (hull
down) for two hours. About 0800 Jap sea-plane dropped bomb on us.
We dove. It hit deck and gauge read 90 ft. Looked again and depth
gauge read 120 ft. We were going down fast at an 18 degree down-
angle. Five (5) full air banks. I manned control phone in the
control room. At 180 ft. the Skipper said to Mr. Sherry: "Blow
everything at 300". I phoned after torpedo room but no answer.
Kept calling for all stations to report "All battle stations
manned." After awhile report came in aft room, "fire in manuever-
ing room" and mud at 260 ft. Three men in control room rushed
to aid in putting out fire in maneuvering room. Soft patch over
maneuvering room was leaking. Bomb hit between aft torpedo room
and maneuvering room bulkhead, starboard side. Sheared blade
starboard screw. Fire caused by heavy cables that run the motors.
Two men succumbed to smoke. No 5 fuel tank leaked badly. All
men were dazed for hours. Maneuvering room completely wrecked;
engine room O.K. Tubes out of line and leaking but not bad.
Stern tubes in motor room leaking badly.

Did not make attempt to surface because we knew they were up
there and had summoned corvets. Sound gear O.K. No depth charges
heard. Commanding officer ordered, over P.A. system, "steady men,
we're O.K., everything is all right". About 2000 we decided to
surface. Oxygen was released and C.O.2 absorbant used. Could have
stayed down 12 hours longer. Casualties were slight. Captain
ordered all hands to secure themselves for surfacing. Surfaced with
about one half degree angle on the boat. I called depth up to 200
ft. then we surfaced very fast. It was dark when we surfaced.
Skipper ordered forward torpedo room hatch opened. Casualties
were cared for and crew fed. Morale high due to excellent skipper.

Drifted during night and worked continuously trying to get
power to main motors and generators. Corvets appeared and laid-too.
About dawn Skipper ordered Chief Electrician to secure. Then a Jap
Zero showed up and started to strafe from stern. Gun crew fired
into plane and it cracked-up on the beach.

We all took to the water. Skipper destroyed T.D.C., Radar and
confidential papers. Opened all hatches. Chief of the Boat, Wil-
liam C. WITHROW, CTM, scuttled the boat by opening all main vents,
and made his escape. Officer HARDY clung to a mattress, reading
the Reader's Digest to us. Three corvets closed in. After 1 hour

-1-
14

— page 149 —
PALMER STATEMENT

and 45 minutes one large corvet picked us up. When we had been
stripped and searched most of our things were returned. After
Japs dropped buoys over spot where boat went down, we departed
for Penang. Speed in lieu of desired information.

Arrived Penang, Malay States, about 0600, 23 April 1943, wet,
hungry, poorly clothed. Marched onto dock and taken to what once
was a British school. In about a half hour a Nip officer showed
up with a club and brandished it. We were stood in a zig-zag row
and clubbed for slightest movement of body or eyelash until late
evening. Then positions changed to hands over head, knees bent.
No food since capture. Then clubbing became more frequent. Man
taken one at a time to a room, the door of which was marked "Art
Room" and tortured by clubbing with flat of sword and round club.
Matches were stuck under fingernails. Tied across a three-quarter
bed, face down, tilted at 20° and head down, poor man full of water, then jump
on his stomach. This treatment was given to the Skipper. Treat-
ment continued five days and nights without food. Evening of fifth
night we got maggoty, wormy rice broth. No smokes. Occasionally a
guard would let us lie down for an hour, then awaken us with
the butt of his gun. Asked Skipper for location of other subs, for
call signals and frequencies. I said I was a cook. Whenever Cap-
tain went to the head he scribbled messages to the crew on the bulk-
head, such as "Guard the T.D.C.", "Keep your heads up", "Don't tell
em anything". Officers kept in separate rooms but we used same head.
We ate hedge blossoms, stems, and grass. We ate Listerine Toothpaste
mixed with tobacco for Mother's Day. After 8th day treatment changed
from purposeful questioning to individual sadistic satisfaction of
the Nip guards - like sitting on deck, hands on knees and staring
rigidly ahead. All men put into a circle with heads between legs of
man next to him. Crawl about cement deck imitating train and animals
until knees and hands wore raw. No baths; still rice broth at 0800
and 2100. This treatment continued for two months. Men became weak
and they were beaten. All P.O.W. used in this manner. Then two or
four weak men put on table and rest had to hold it over their heads.
The guards were Formosa Nips. They wanted our jewelry and made us
wish we had given it to them. In Penang and under this treatment
for four months.

On 18 July left for Singapore on the Hiya Maru; filthy condi-
tions. In Singapore three days later and we remained fifty one days.
Treatment not bad; work light. Worked at Singapore Navy Base. On
26 September boarded Asama Maru and had 17 days trip - same con-
ditions. Destination Japan. Two days out of Japan they tortured
men beyond all comprehension.

Arrived Shimoda Saki 10 October 1943 and divided. Twenty nine
men sent to Ofuna Interrogation Camp. The remaining men (41) stayed

-2-
15

— page 151 —
U.S.S. GRENADIER (SS 210) - Statement of Fred Zufelt, 381 21 09, GM1c.

17
ENCLOSURE ([HANDWRITTEN: Z with horizontal line through middle])

— page 152 —
STATEMENT OF ZUPELT, FRED (N), 381-21-09, GM1c -
UPON ARRIVAL IN GUAM, M.I. - Member of crew of GRENADIER.

I was in my bunk when the excitement started. After the explosion I got up
and discovered that the maneuvering room and control were taking water badly. After
depth at this time was about 235 feet. One great cause for water to come into the
boat was soft patch that had gave way. After torpedo room was leaking badly. Power
was gone and couldn't be restored, however much effort was put on trying to regain
main propulsion. When the word was passed to abandon ship I jumped overboard.
After I was picked up I was taken to Penang. Here I was mistreated considerably.
When I asked an officer to repeat a question I was threatened to be killed. They
slapped me around quite a bit. It made them very angry when I did not reveal the infor-
mation they desired.
From Penang I was sent to OFUNA and put to work in the mines there. Food here
was enough to subsist on but not enough to live in good health.
After leaving OFUNA I was taken to Omari and kept there until the Japs decided
to send me to ASHIO to work at hard labor and live on very short rations.
On September 4, 1945 I boarded a train and went to Yokohama and then onboard the
U.S.S. OSARK which brought me to GUAM. I arrived at GUAM 12 September 1945.

FRED ZUPELT.

18

— page 154 —
STATEMENT OF FOSS, E.L., RM1c - UPON ARRIVAL
AT GUAM, M.I. - Member of Crew of U.S.S.
GRENADIER.

The cause of the damage and sinking of the GRENADIER was due to
the bomb that hit her; this is my opinion. The maneuvering room was
damaged severely. After the bomb hit we could not get any power.
All hands worked until they were exhausted trying to restore power.
We surfaced and Japanese bomber came over. We drove him off with
the 20MM. Later we learned that the plane crashed.
It was decided that the boat could not be saved so the Captain
ordered crew to abandon ship. Vents were pulled and men went over
the side.

We were taken aboard the Japanese ship and taken to PENANG. We
were taken to St. George College, which was formerly a girl's school.
Here we were questioned. No smoking was permitted; disobedience of
this rule resulted in severe beatings. Treatment was so rough that
I passed out for a time. They asked us what submarine we were on.
I told them the GOLDFISH. I had been given instructions to tell them
a fictitious name if I was asked questions concerning our boats. The
Captain of the boat received severe torture and mistreatment. But
even after this torture he refused to let his men try to escape.
We remained at PENANG until 5 August 1943. Then we were taken
on TI MARU to SINGAPORE. Then we were taken to an Indian camp and
put to work.

On 24 September 1943 we went aboard the ship ASUMA MARU. Treat-
ment was extremely horrible. The men were forced to beat each other
with clubs. When you sat down you were beaten and when you stood you
were beaten.
On board the ASUMA MARU we were taken to Japan and sent to a
prison camp by the name of AFUNA. Here we were put to work.
From AFUNA we were sent to OMARI, near TOKYO.
From OMARI I was taken to OSHIO and put to work in the mines.
This amounted to hard work and short rations.
On 4 September 1945 I went to YOKOHOMA and then on board the
U.S.S. OSARK and arrived at GUAM on 12 September 1945.

[SIGNATURE: Edgar L. Poss]
E.L. POSS.

20

— page 156 —
STATEMENT OF: WITHROW, William Clyde, CTM, 265 82 40, USN
of the U.S.S. GRENADIER.

We lost the boat by a bombing. Early morning of the 21st we
tried to come in on a two ship convoy. We dove and surfaced at
daylight. A plane spotted us and bombed us. We went down in
shallow water, about 265 feet; the boat was damaged quite a bit.
We worked all day and surfaced at night and worked all that night
until next morning. We were called to quarters and asked what we
would like to do. Another plane came over but we evaded him. We
later found out we had shot him down. A small minelayer and a
destroyer came in on us and when they got closer we scuttled the
boat. We were swimming about and were finally picked up and taken
to Penang. That's where hell started. They tried to get information
out of us and tortured us to make us talk, but they got nothing
out of us. We stayed there until August 5th. From there we went
to Singapore, staying there until 26 Sept 1943. Then we came to
Japan. We got there the 10th of October 1943. They kept us under
slight torture until finally in December 1943 we were permitted
to talk amongst ourselves. All the Quiz Kids' were stateside
interpreters. We left for Omari and from Omari went to Ashio, to
the copper mines. Up to this time we had been under the Navy, and
they really made it hard on us. When we reached Ashio, the treat-
ment let up considerably. Lindar, Guico, Doyle and Snyder died.
Barker was left in Singapore and we never heard anything more about
him. I think as much of Fitzgerald, our skipper, as I almost do
of my father. He went through hell for us. They beat him, jumped
on his stomach and tortured him by burning splints under his nails.
He never talked. They even had him working in the mines for telling
the Jap Commander just what he thought of him.

William Clyde Withrow.

22

— page 157 —
FE24-71/A17-26
Serial 00280

[STAMP: DECLASSIFIED]
[STAMP: SECRET]

From:
To:
Subject:

Enclosure:
1. U. S. NAVAL FORCES
WESTERN AUSTRALIA

May 21, 1943.

The Commander Submarines, Seventh Fleet.
The Commander Seventh Fleet.

Record of Proceedings of an Investigation
Convened by the Commander Submarines, Seventh Fleet,
to inquire into the circumstances connected with
the possible loss of the U.S.S. GRENADIER on her
sixth war patrol - transmittal of.

(A) Original and two copies of subject investigation.

Enclosure (A) is forwarded herewith.

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

[HANDWRITTEN: CONFIDENTIAL BOX #S-3178RS]

[HANDWRITTEN: 00 -]
[HANDWRITTEN: 01 - 80]

[HANDWRITTEN: JACKET # 1]
[HANDWRITTEN: file]

— page 158 —
SECRET

RECORD OF PROCEEDINGS
of an
INVESTIGATION
conducted at
the headquarters of
THE COMMANDER U.S. NAVAL FORCES, WESTERN AUSTRALIA
by order of
The Commander Submarines, Seventh Fleet.
To inquire into the circumstances connected with the possible
loss of the U.S.S. Grenadier on her sixth war patrol.

May 17, 1943

— page 159 —
FE24-71/A17-26
00279
[STAMP: SECRET]
S-E-C-R-E-T

SUBMARINES, SEVENTH FLEET,
U.S.S. TROUT (SS202), Flagship,
May 21, 1943.

The proceedings and findings of the investigation in the
attached case are approved.

[SIGNATURE: R. W. Christie]
R. W. CHRISTIE,
Rear Admiral, U.S. Navy,
Commander Submarines, Seventh Fleet.

[HANDWRITTEN: 8]

— page 160 —
[UNCLEAR: 3]

[STAMP: SECRET]

FINDING OF FACTS

1. That the U.S.S. Grenadier (SS210) departed from Fremantle,
   West Australia, on her sixth war patrol on March 20, 1943.

2. That on departure on patrol there were no known material
   deficiencies that might contribute to the loss of the vessel.

3. That the usual training had been conducted prior to
   departure on patrol.

4. That prior to departure the commanding officer had been
   furnished with all available information of his patrol area,
   and own and enemy operations therein, and was subsequently
   given additional information by despatch.

5. That friendly forces were adequately informed of the
   operations of the U.S.S. Grenadier in the area normally
   assigned to the British.

6. That when last heard from by radio April 16, 1943, the
   U.S.S. Grenadier gave her position as Latitude 13 degrees 13
   minutes North, Longitude 96 degrees 55 minutes East.

7. That on April 20, 1943 the U.S.S. Grenadier was directed
   by radio to depart from the assigned area at dark April 23,
   1943 and to acknowledge the signal when feasible.

8. That no acknowledgement for the orders of April 20, 1943
   has been received and the U.S.S. Grenadier has not returned to
   port either in accordance with the despatch directive or the
   original operation order.

9. That, at the latest, the U.S.S. Grenadier was due in
   Exmouth Gulf, West Australia on May 12, 1943 and is considered
   overdue since that date.

RECOMMENDATIONS

The investigating officer has no recommendations as to any
steps that should be taken to improve operational procedures.

— page 161 —
FE24-71/A17-25
Serial 00267
[STAMP: SECRET]
S-E-C-R-E-T

From:
To:

Subject:

1.
detailed to
circumstances
GRENADIER on

2.
the known
GRENADIER
report to
facts which
recommendations
improve operational procedures.

3.
734, Naval Courts and Boards.

4.
You will furnish your own clerical assistance.
You are directed to make only four copies of the record of the
proceedings and forward all four copies to the convening
authority.

SUBMARINES, SEVENTH FLEET
U.S.S. TROUT (SS202), Flagship,
May 13, 1943.

The Commander Submarines, Seventh Fleet.

Commander Chester C. Smith, U.S. Navy,
Commander Submarine Division Sixty-One.

Investigation into the possible loss of the
U.S.S. GRENADIER (SS210) on her sixth war patrol.

Under authority of 5 U.S. Code 93, you are hereby
investigate, as soon as practicable, into all
connected with the possible loss of the U.S.S.
her sixth war patrol.

You will make a thorough investigation into all
circumstances connected with the operation of the
during her sixth war patrol and submit a complete
the Commander Submarines, Seventh Fleet, of the
you deem to be established, together with
as to what steps, if any, should be taken to

Your attention is particularly invited to Section

[SIGNATURE: R. W. Christie]
R. W. CHRISTIE,
Rear Admiral, U.S. Navy,
Commander Submarines, Seventh Fleet.

86/Bz

— page 162 —
[STAMP: SECRET]

FIRST DAY

U.S. Naval Headquarters,
Perth, Western Australia,
Monday, May 17, 1943.

The investigating officer, Commander Chester C. Smith, U.S.
Navy, administered the prescribed oath to Jacob Rosen, chief
yeoman, U.S. Navy, the reporter, who took seat as such.

The investigating officer read the order directing him to
make the investigation, which is hereto prefixed.

The investigating officer announced that the investigation
would be conducted with closed doors.

No witnesses not otherwise connected with the investigation
were present.

A witness called by the investigating officer entered, was
informed of the subject matter of the investigation, and
declared as follows:

Examined by the investigating officer:

1. Q. State your name, rank, and present station.
A. Captain H.H. McLean, U.S. Navy, Chief of Staff to Commander
Task Force Seventy One and Commander Submarines, Seventh Fleet. [HANDWRITTEN: cc/]

2. Q. Will you please produce the operation order given the
U.S.S. Grenadier for this patrol and describe the operations
that it directs and any other directives that you had knowledge
of regarding this operation.

The reporter informed the investigating officer that, due to
a recent accident, he was unable to keep the shorthand record.

The investigating officer administered the prescribed oath to
Charles D. Albers, chief yeoman, U.S. Navy, as an additional
reporter, who took seat as such.

The witness produced the complete operations jacket including
the operation order and memoranda, and another jacket containing
the despatches in regard to the sixth war patrol of the U.S.S.
Grenadier. The applicable documents are appended.

A. Commander Southwest Pacific despatch 161559 of March
directed the assignment of two submarines for one patrol each
between Malacca Strait and Martaban Bay. The first submarine
to depart at the earliest practicable date and details were to
be arranged with Commander in Chief, Eastern Fleet.
The Grenadier was about ready to start on a patrol of an
area normally assigned to this task force. These orders were
cancelled and new orders were issued to provide for patrol in
this new area. In a despatch 170440 of March, CINCEF was
advised of the proposed patrol of the Grenadier in the British [HANDWRITTEN: cc/]
Area.

-1-

— page 163 —
SECRET

He was requested to provide pertinent information concerning
the area and to advise what modifications of the Grenadier's
orders, if any, were required.

The Grenadier operated in accordance with Operation Order
7-43 as modified by Commander Task Force 71 despatch 220953.
The latter despatch was based on information received from
CINCEF.

In general, the Grenadier was to proceed to Exmouth Gulf,
there fuel to capacity and thence proceed to Salang Island
via direct route westward of Sumatra. She was to patrol off Salang Island
and exploit likely traffic lanes between entrance of Malacca
Strait and the Gulf of Martaban, paying particular attention to
shipping passing to and from Rangoon. At dark, 1 May, she was
to return via route to the southwest of Sumatra, reconnoitering
Christmas Island one day enroute. The assigned patrol area was
north of 7 degrees north and east of line Nicobar-Andamans-
Cape Negrais. The British authorities arranged for submerged
bombing restrictions in this area from 0001Z/31 March until
further notice. British authorities issued orders to their own
submarines not to attack any submarines between the equator and
southern boundary of the area.

CINCEF in his 0716Z/18 proposed that the Grenadier call at
Ceylon, and later operate under the control of Flag Officer,
Ceylon. The action of Commander Task Force 71, and Commander
Seventh Fleet is contained in CTF 71 despatches 190156 and
0351Z/20 March and Commander Seventh Fleet 190555 of March.

3. Q. Was all of the information furnished this submar-
ine prior to departure on her sixth war patrol?
A. She was given two memorandums dated 18 and 20 March
containing all available information in our files. On 10 April
Grenadier was furnished additional information about the
movements of Dutch Submarines in Malacca Strait. These were
despatches 101820 and 101944. These were paraphrased
versions of N.O.I.C. Colombo's 100520Z and 100544Z of April.
Above is a summation of what transpired during the period I was
Operations Officer.
[HANDWRITTEN: c.c.f]

4. Q. Were you able to furnish the Grenadier any information
as to possible minefields in the area in which it was to
operate?
A. One of the memorandums referred to previously, contained
information that at one time the Singapore Strait had been
closed to night shipping due to floating mines. Further
information had been requested from CINCEF, but no additional
information was obtained as to minefields.
[HANDWRITTEN: c.c.f]

5. Q. Aside from the operation order, memorandums,
despatches that you have referred to, do you recall any
additional verbal instructions given to the commanding officer
prior to departure on patrol?
A. As I remember, two conferences were held, one to discuss
the operation order itself, and immediately prior to departure
an additional conference was held to iron out various commun-
ication problems incident to ships operating in British areas
in British waters. No additional instructions were given other
than those contained in the operation order.
[HANDWRITTEN: c.c.f]

-2-

— page 164 —
[HANDWRITTEN: 1]

SECRET

6. Q. State the general nature of the area in which the
vessel was to operate and the depths of water to be encountered.
A. In the vicinity of Salang Island depths of from 36 to 40
fathoms are found - deeper water is found to the westward.
Shallow water is found to the southward of Rangoon.

7. Q. Was the submarine given any instructions as to how to
conduct operations, surface or submerged, during daylight?
A. That was left to the discretion of the commanding officer. [HANDWRITTEN: oof]

8. Q. In the issuance of the operation order and instructions
to the commanding officer were you assisted by any other officer?
A. Yes, Lieutenant Commander Lautrup, Assistant Operations
Officer.

9. Q. In regard to the training of the ship prior to ship's
departure, who was in charge of training of the Grenadier?
A. Lieutenant Commander Carr, under Commander Submarine
Squadron Six, handled training of submarine crews.

10. Q. Can you furnish any other information which would be
helpful in this case?
A. No. [HANDWRITTEN: oof]

The investigating officer informed the witness that he was
privileged to make any further statement covering anything
relating to the subject matter of the investigation which he
thought should be made a matter of record in connection there-
with, which had not been fully brought out by the previous
questioning.

The witness stated that he had nothing further to say.

The witness verified his declaration, was duly warned, and
withdrew.

A witness called by the investigating officer entered, was
informed of the subject matter of the investigation, and
declared as follows:

Examined by the investigating officer:

1. Q. State your name, rank, and present station.
A. John Mylin Will, Commander, U.S. Navy, Commander Submarine
Division Sixty Two with additional duty as Operations Officer
Task Force 71.

2. Q. At what time did you relieve Captain McLean as Operat-
ions Officer?
A. About March 26, 1943.

3. Q. At the time you relieved as Operations Officer the
Grenadier was out on her sixth war patrol. Were there any
instructions or communications issued by you to that vessel
after your assumption of duties as Operations Officer?

-3-

— page 165 —
SECRET

A. The first despatch which I originated to the Grenadier was
on the 11th of April in which the Grenadier was told that we
desired information prior to 16 April as to the future hunting
prospects in her assigned area. In the same despatch she was
told to submit this information when conditions permitted. This [HANDWRITTEN: c.c.f]
despatch was 111355 of April. The Grenadier on 16 April in
her despatch 151200 replied that her area was unproductive and [HANDWRITTEN: c.c.f]
she was instructed to patrol to date, and her position at the
time of the despatch as 13 degrees 13 minutes north 96 degrees
and 55 minutes east longitude. In view of the unproductiveness
of the area and the urgent need for submarines in other more
productive areas a despatch was sent to Grenadier on 20 April
modifying her operation order and directing her to depart her
area at dark on 23 April from approximate position seven
degrees north 95 degrees east and further directing her to pass
through Pulo Bras and Point "A" bearing 270 degrees distant 20
Pulo Bras and Point "B" 3 degrees 1 minute north 3 degrees and
1 minute east thence south of Sumatra to Sunda Strait to
patrol this strait for about one week and to start the return
to Fremantle at dark May 4 reconnoitering Christmas Island
enroute. This same despatch requested an acknowledgement when
feasible. This was despatch 200840 of 20 April. The with-
drawal of the Grenadier from that area was in compliance with
a directive from Commander Seventh Fleet and the routing given
to Grenadier for departing the area was received from FO
Ceylon. In same despatch from FO Ceylon a statement was made
that submerged bombing restrictions would be removed north of
seven degrees north at 0001Z April 24 unless we wished them to
be kept in force longer. On April 20 we informed CinCEF that
the Grenadier had been routed as he requested and removal of
submerged bombing restrictions north of seven degrees north on
Grenadier to depart her area was paraphrased and sent out over
circuit NU as 200845Z April 20 having no acknowledgement from
Grenadier we sent 271030 requesting she acknowledge serial 4
This was also sent out over circuit NU as 271100Z. On April
30 still having no acknowledgement of 200845, we sent 300431
to CinCEF informing him of possible radio material failure of
Grenadier which might have prevented her receiving instructions
to depart area early, and the possibility that she might depart
area at dark May 1, by reverse of the outbound route in accord-
ance with her original orders. That is the substance of all
communications from and to the Grenadier.

4. Q. To your knowledge were there any friendly vessels or
submarines in the area in which the Grenadier operated that
came to your attention as operations officer? [HANDWRITTEN: c.c.f]
A. NO.

5. Q. As Commander Submarine Division Sixty Two the Grenadier
was part of your division and you were in some measure respon-
sible for the training of that vessel and should have some
knowledge of the skill and ability of the officers aboard and
in particular the training they received just prior to depart-
ure. What information can you give?

-4-

— page 166 —
SECRET
SECRET

**SECRET**

A. Prior to departure for the patrol before this one, I
personally conducted some of the training as Officer Conducting
the Practice on the surface target and considered the Command-
ing Officer and officers well qualified in their jobs and per-
fectly capable of handling the Grenadier under all conditions.
I had nothing to do with the conduct of the training prior to
the departure of the Grenadier on her sixth war patrol, but I
talked to the commanding officer previous to his departure, and
he seemed well satisfied with the amount of training he had
had. He was also well satisfied with the officer and person-
nel situation as it existed at the time of the commencement of
the patrol and I consider the capability of those officers
assigned the Grenadier satisfactory.

6. Q. Were there any unusual changes in enlisted personnel
complement or officers of the vessel between the fifth and sixth war
patrols?
A. None that I know of.

The investigating officer informed the witness that he was
privileged to make any further statement covering anything
relating to the subject matter of the investigation which he
thought should be a matter of record in connection therewith,
which had not been fully brought out by the previous question-
ing.

The witness stated that he had nothing further to say.

The witness verified his declaration, was duly warned, and
withdrew.

A witness called by the investigating officer entered, was
informed of the subject matter of the investigation, and
declared as follows:

Examined by the investigating officer:

1. Q. State your name, rank, and present station.
A. Lieutenant Commander B.L. Carr, U.S. Navy, Flag Secretary
and Aide, Staff Commander Submarines, Seventh Fleet.

2. Q. What were your duties at the time of the last refit
of the Grenadier in this port?
A. I was Operations Officer on the staff of Commander
Submarine Squadron Six.

3. Q. As such what were your duties in regard to the training
of the Grenadier?
A. My duties were, in this regard, to arrange for practices
and rehearsals during the time she was available between the
completion of her refit and departure for patrol.

4. Q. Do you recall the nature and amount of training given
the Grenadier prior to her departure on her last patrol?
A. No, I don't recall exactly, but I think she had at least
two days devoted to daylight approaches and, I believe, two
nights of approaches.

-5-

— page 167 —
SECRET

5. Q. From your observations in conducting these exercises,
would you believe that the personnel of the Grenadier were
properly trained for war operations?
A. Yes, I thought her approaches on the whole, were well
conducted and I remember discussing several of them with the
commanding officer and making a comment to that effect. [HANDWRITTEN: c.o.s]

6. Q. To your knowledge was there any unusual change in the
personnel of the vessel between the fifth and sixth war
patrols?
A. There was a considerable shift of officer personnel in
which Lieutenant (j.g.) Howell, Lieutenant (j.g.) Kuehn, and
Ensign Benitez were transferred. The reasons for the
transfers at this time were Howell had been ordered to new
construction and Benitez and Kuehn were ill. In order to get
another experienced man on the boat, Lieutenant Cherry was
ordered to the ship. This gave them a well balanced boat.

7. Q. Was there any unusually large turnover of enlisted
personnel?
A. I don't remember.

The investigating officer informed the witness that he was
privileged to make any further statement covering anything
relating to the subject matter of the investigation which he
thought should be a matter of record in connection therewith,
which had not been fully brought out by the previous
questioning.

The witness stated that he had nothing further to say.

The witness verified his declaration, was duly warned, and
withdrew.

The investigation then, at 5 p.m. adjourned until 1 p.m.
tomorrow.

-6-

— page 168 —
SECRET

SECOND DAY

U.S. Naval Headquarters,
Perth, Western Australia,
Tuesday, May 18, 1943.

The investigation met at 1 p.m.

Present:

Commander Chester C. Smith, U.S. Navy, investigating officer.
Jacob Rosen, chief yeoman U.S. Navy, reporter.
Charles D. Albers, chief yeoman, U.S. Navy, reporter.

The record of proceedings of the first day of the investigat-
ion was read and approved.

No witnesses not otherwise connected with the investigation
were present.

A witness called by the investigating officer entered, was
informed of the subject matter of the investigation, and
declared as follows:

Examined by the investigating officer:

1. Q. State your name, rank, and present station.
A. Lieutenant Commander C. W. Lautrup, U.S. Navy, Assistant
Operations Officer, Staff of Commander Submarines, Seventh
Fleet.

2. Q. What were your duties at the time the Grenadier was
sent out on her sixth war patrol?
A. Preparation of operation orders.

3. Q. Was it your duty, then, to make available to the
commanding officer all the information available in regard to
the area to which he was assigned?
A. Yes sir.

4. Q. Captain McLean has given me the substance of the
operation order under which the Grenadier operated, as well as
memoranda of information available in regard to the area. He
also has furnished information of the despatches thereafter
sent to the Grenadier with additional information. He and
Commander Will have informed me of all the despatches sent to
and from the Grenadier after her departure. Was there any
additional information that came to your knowledge that was not
furnished the commanding officer in the above mentioned orders,
memoranda, and despatches.
A. No sir.

5. Q. In accordance with your information, what was consider-
ed the latest date on which the Grenadier should have arrived
at Exmouth Gulf?
A. 12 May.

-7-

— page 169 —
SECRET

6. Q. Do you then consider that due to non-arrival by that
   date that the vessel is overdue?
   A. Yes sir.

The investigating officer informed the witness that he was
privileged to make any further statement covering anything
relating to the subject matter of the investigation which he
thought should be a matter of record in connection therewith,
which had not been fully brought out by the previous question-
ing.

The witness stated that he had nothing further to say.

The witness verified his declaration, was duly warned, and
withdrew.

The investigating officer as legal custodian, introduced
the Ship's Departure Check-off List for the U.S.S. Grenadier
(SS210) dated March 17, 1943, copy appended.

It was noted that there were no deficiencies discovered as a
result of the required inspections during and after the refit
of the U.S.S. Grenadier.

The investigation was finished.

FINDING OF FACTS

1. That the U.S.S. Grenadier (SS210) departed from Fremantle,
   West Australia, on her sixth war patrol on March 20, 1943.

2. That on departure on patrol there were no known material
   deficiencies that might contribute to the loss of the vessel. [HANDWRITTEN: CCJ]

3. That the usual training had been conducted prior to
   departure on patrol.

4. That prior to departure the commanding officer had been
   furnished with all available information of his patrol area,
   and own and enemy operations therein, and was subsequently
   given additional information by despatch.

5. That friendly forces were adequately informed of the
   operations of the U.S.S. Grenadier in the area normally
   assigned to the British.

6. That when last heard from by radio April 16, 1943, the
   U.S.S. Grenadier gave her position as Latitude 13 degrees 13
   minutes North, Longitude 96 degrees 55 minutes East.

7. That on April 20, 1943 the U.S.S. Grenadier was directed
   by radio to depart from the assigned area at dark April 23, 1943
   and to acknowledge the signal when feasible.

-8-

— page 170 —
SECRET

8. That no acknowledgement for the orders of April 20, 1943
has been received and the U.S.S. Grenadier has not returned to
port either in accordance with the despatch directive or the
original operation order.

9. That, at the latest, the U.S.S. Grenadier was due in
Exmouth Gulf, West Australia on May 12, 1943 and is considered
overdue since that date.

RECOMMENDATIONS

The investigating officer has no recommendations as to any
steps that should be taken to improve operational procedures.

The record of proceedings of the second day of the invest-
igation was read and approved, and the investigating officer
having finished the investigation, then, at 2:30 p.m.,
adjourned to await the action of the convening authority.

[SIGNATURE: Chester C. Smith]
Chester C. Smith
Commander, U.S. Navy,
Investigating Officer.

-9-

— page 171 —
S-E-C-R-E-T

OPERATION ORDER
NO. 7-43.

TASK ORGANIZATION
(a) U.S.S. GRENADIER - Lieutenant Commander J. A. FITZGERALD.

1. (a) Japanese forces now control the PHILIPPINES, FRENCH INDO-CHINA,
    MALAYA, BURMA, the NETHERLANDS EAST INDIES, most of NEW
    GUINEA, NEW BRITAIN, GUAM and WAKE in addition to former
    Japanese Territory. Enemy bases are probably established at
    BALI, SURABAYA, TJILATJAP, BATAVIA, SINGAPORE, SABANG,
    RANGOON and PENANG.

(b) Japanese planes may be expected at strategic positions in
    Japanese occupied territory. Important bases are probably
    fortified and also mined and netted against submarines.

(c) The enemy is sending reinforcements to RANGOON via MALACCA [UNCLEAR: CO/]
    STRAIT in preparation for future operations. Some 6 or 7
    ships are despatched monthly. Dutch submarines (0-22, 0-23,
    K-11, K-14, K-15) and some British submarines (TRUSTY Class)
    have been operating under the Commander in Chief, EASTERN
    FLEET employed on offensive patrol in the northern entrance
    to MALACCA STRAIT. Additional details of friendly and enemy
    forces in this area have been requested from the Commander
    in Chief, EASTERN FLEET and will be forwarded by despatch.

(d) (1) Enemy shipping is known to take full advantage of protec-
        tion afforded by shallow water routes close inshore.
        Normal shipping routes from RANGOON to SINGAPORE use the
        eastern side of MALACCA STRAIT.

    (2) Fast important ships sometimes proceed independently, but
        frequently under escort. Convoys of two or more ships
        are usually escorted. Air coverage is usually given to
        ships and convoys entering and leaving port.

(e) Attention is called to:

    (1) Current O.N.I. and Force Intelligence Bulletins.

    (2) Japanese Shipping Position - Board of Economic Warfare -
        17 August 1942.

    (3) Submarines, Southwest Pacific, Standard Plans and Instruc-
        tions, dated 15 January 1943.

    (4) Intelligence reports contained in separate memorandum.

2. This unit will conduct offensive patrol against enemy combatant,
    supply and transport shipping between MALACCA STRAIT and the
    GULF of MARTABAN.

-1-
ALLIED NAVAL FORCES,
BASED WESTERN AUSTRALIA,
COMMANDER TASK GROUP 71.1,
U.S.S. TROUT (SS202) FLAGSHIP

PERTH, WEST AUSTRALIA,
March 17, 1943. 1615 ITEM

[HANDWRITTEN: A true copy. Attest:]
[SIGNATURE: Chester O. Smith]
[HANDWRITTEN: Commander, U.S. Navy,]
[HANDWRITTEN: Investigating Officer.]

— page 173 —
U. S. NAVAL FORCES
WESTERN AUSTRALIA

S-E-C-R-E-T

1. GRENADIER will guard Bakers continuously;
upon failure will shift to Group NU.

2. GRENADIER will guard recco frequency until
1,000 miles out of Fremantle and from 1,000 miles out of
Fremantle on return.

3. VIXO will address GRENADIER on normal Baker
sub run (textual ser nr); traffic will be paralleled on
Group NU in British code after 1 April. (textual ser nr
plus alphabetical ser ltr).

4. GRENADIER holds following publications in
addition to normal compliment:

1) SP 02169 (16) (March)
2) " " (17) (April)
3) " " (18) (May)
4) " 02365 (15) (April)
5) " " (16) (May)
6) " 02409 - code
7) " 02410 - code
8) XRAY SIGNALS (British)

These pubs are used to encrypt all GRENADIER
traffic to be put on NU circuit.

5. All traffic for GRENADIER will bear call sign
NYGA.

[HANDWRITTEN: c.c.l]

A true copy. Attest:
[SIGNATURE: Chester C. Smith]
Chester C. Smith,
Commander, U.S. Navy,
Investigating Officer.

— page 174 —
U.S. NAVAL FORCES
WESTERN AUSTRALIA

March 17, 1943.

[STAMP: SECRET]
- SHIP-SHORE FREQUENCIES (GZH) -

NYGA will call RDO COLOMBO (GZH) ON FOLLOWING FREQUENCIES:-

Frequency             Time
3835                  1800-0200 Z
6300                  Cont.
8290                  Cont.
12,685                0400-1600 Z
16,845                0200-1800 Z

GZH will answer on (GZH) NU Broadcasts:-

NU Broadcast (GZH)    Sub. ser. numbers 701-899.

Frequency             Time                  Remarks

7,435                 Cont.
13,355                Cont.
17,612                0130 *
                      0330 *
                      0530 #
                      0730 *
                      0930 *
                      1025 *
                      1130 #                *Secure watch after
                                            10 minutes if nothing
                                            heard.

4,403                 1400 *
                      1530 #
                      1730 *
                      1930 #                #Secure watch only
                      2130 *                after hearing
                      2330 #                signal X 860.
                                            [HANDWRITTEN: c.c.d]

A true copy. Attest:
[SIGNATURE: Chester C. Smith]
Chester C. Smith,
Commander, U.S. Navy,
Investigating Officer.

— page 175 —
NAVAL MESSAGE

DATE AND
TIME GROUP
161559

COMES NOW REENCIPHERMENT OF COMSOWESPACS 160844 TO CTF 71 FOR ACTION
X JOINT CHIEFS OF STAFF HAVE DIRECTED ASSIGNMENT 2 SUBMARINES FOR [HANDWRITTEN: 100]

1 PATROL EACH BETWEEN MALACCA STRAIT AND MARTABAN BAY TO SINK ENEMY
SHIPPING ENROUTE RANGOON ECT RANGOON FOR PURPOSE REDUCING ENEMY RESERVES

PREPARATORY ANAKIM OPERATION FIRST SUBMARINE TO DEPART AT EARLY DATE
X INFORMATION THAT JAPS SEND 6 or 7 SUPPLY SHIPS MONTHLY TO RANGOON U

EASTERN FLEET SUBMARINES ARE EMPLOYED ON OFFENSIVE PATROL NORTHERN END
MALACCA STRAITS X CTF 71 WILL ASSIGN SUBMARINES FOR THIS TASK AND

DIRECT DEPARTURE FIRST SUBMARINE EARLIEST PRACTICABLE DATE SECOND
SUB RELIEVE ON STATION AT END OF NORMAL PATROL COMMUNICATE DIRECT WITH

COMMANDER EASTERN FLEET TO OBTAIN ADDITIONAL INFORMATION DESIRED
REGARDING MOVEMENTS EASTERN FLEET X INFORM ME NAME VESSEL DESIGNATED

FIRST PATROL AND DATE OF DEPARTURE BY PRIORITY DESPATCHC MACARTHUR
HAS THIS BY HAND X THIS FOR INFO CINCPAC AND COMINCH X COMINCH

PASS TO JOINT CHIEFS OF STAFF

ACTION OFFICER OPER
COPY TO [HANDWRITTEN: }REC'D]

T.O.R. 1927/16 HOW TRANSMITTED VHK BP 591/7700 SYSTEM DATYH
RELEASED BY :
FROM RDO CANBERRA ACTION USRAD PERTH INFO:

PRECEDENCE PRIORITY CODING: PERRAULT TYPING: PERRAULT DATE 16MAR43

A true copy. Attest: [SIGNATURE: C. Smith]
Commander Chester C. Smith, U.S. Navy, Investigating Officer.

— page 176 —
NAVAL MESSAGE

DATE AND
TIME GROUP
170440

MOST SECRET

IMMEDIATE

IN COMPLIANCE WITH DIRECTIVE FROM JOINT CHIEFS OF STAFF WILL MAKE TWO
SUCCESSIVE PATROLS OF ONE SUBMARINE EACH BETWEEN MALACCA STRAIT AND

GULF OF MARTABAN TO DESTROY ENEMY SHIPPING ENROUTE RANGOON X UNITED
STATES SUBMARINE GRENADIER EXPECTS DEPART FREMANTLE EIGHTEEN MARCH [HANDWRITTEN: C.C.L]

VIA EXMOUTH GULF FOR REFUELING THENCE TO AREA VIA DIRECT ROUTE SOUTH
OF BARRIER X ETA LEM VOALAN ONE APRIL AND WILL REMAIN ABOUT ONE

MONTH ON STATION XX WITH RESPECT TO ROUTE AND PATROL AREA REQUEST
INFORMATION AS TO X ABLE FRIENDLY SUBMARINE AIR AND SURFACE FORCES

WHICH MAY BE ENCOUNTERED X BAKER ENEMY A/S ACTIVITIES AND MINEFIELDS X
CHARLIE IF ANY FRIENDLY MERCHANT SHIPPING WILL BE ENCOUNTERED X DOG

ENEMY SHIPPING LANES TO RANGOON X EASY MOST PRODUCTIVE AREAS FOR
PATROL X FOX LIMITS OF ADJOINING AREAS WHICH WILL BE PATROLLED BY

SUBMARINES OF EASTERN FLEET

ACTION OFFICER

T.O.R.
FROM
CTF 71

HOW TRANSMITTED:
British
ACTION:
CINCEF

COPY TO

SYSTEM:
CYPHER H
INFO:

} REC'D

RELEASED BY:

PRECEDENCE:
PRIORITY
CODING:
BARNHILL
[HANDWRITTEN: CHISMARK]
TYPING:
LANGLEY
DATE:
17 MARCH 1943

A true copy. Attest: [SIGNATURE: Chester C. Smith]
Chester C. Smith, Commander, U.S. Navy, Investigating Officer.

— page 177 —
NAVAL MESSAGE

DATE AND
TIME GROUP
220953

CHILDS DELIVER TO GRENADIER FOR ACTION X FROM COMTASKFOR 71 XX
ABLE X AREA NORTH OF SEVEN DEGREES NORTH AND EAST OF LINE NICOBAR

ANDAMANS CAPE NEGRAIS ASSIGNED GRENADIER X MOST LIKELY HUNTING
VICINITY OF LEM VOALAN AND NORTH OF MERGUI ARCHIPELAGO X AREA

OCCASIONALLY PATROLLED BY RAF BUT BOMBING RESTRICTION DURING APRIL BEING
ARRANGED XX BAKER X DUTCH OBOE DASH TWENTY FOUR NOW PATROLLING ANDAMAN ISLANDS

WILL BE WEST OF LONGITUDE NINETY BY FIVE APRIL X MID APRIL ONE DUTCH SUBMARINE
PATROLS MALACCA KEEPING SOUTH OF SIX DASH THIRTY NORTH AND ANOTHER WEST OF

SUMATRA XX CHARLIE X NO FRIENDLY SURFACE FORCES OR SHIPPING IN YOUR AREA OR [HANDWRITTEN: cc]
NEAR ROUTE THERETO WHEN WEST OF ONE HUNDRED TEN EAST XX DOG X SMALL NUMBER

ARMY PLANES BASE SABANG AND MEDAN WITH FLOAT PLANES LOCATED PANDANG MAKE
DAILY RECONNAISSANCE X PORT BLAIR ANDAMANS FORMER BASE FOR LAND AND SEA PLANES

BUT NONE THERE ON TEN MARCH X SLIGHT ANTI SUBMARINE ACTIVITY X CONVOYS SOME-
TIMES ESCORTED BY ONE TRAWLER ASTERN XX EASY X SHIPPING PASSES WITHIN THIRTY

MILES OF LEM VOALAN X FROM PENANG PROBABLY TO EASTWARD OF BUTANG ISLANDS [HANDWRITTEN: cc]
THENCE BETWEEN PULO RAJA AND LEM VOALAN X TO NORTHWARD TRAFFIC PROBABLY HUGS [HANDWRITTEN: cc]

COAST DURING NORTHEAST MONSOON X DURING SOUTHWEST MONSOON PROBABLY PASSES TO
WESTWARD OFFLYING ISLANDS X ONE SHIP SIGHTED POSIT 13 DASH 30 NORTH 97 DASH

30 EAST XX FOX X COMMUNICATION PROCEDURE CONFIRMED XX [UNCLEAR: GEORGE] X ACKNOWLEDGE [HANDWRITTEN: REC'D]
ACTION OFFICER

(PAGE ONE OF TWO)

T.O.R.
FROM

HOW TRANSMITTED:
ACTION:

SYSTEM:

INFO:

RELEASED BY:

PRECEDENCE:
A true copy. Attest:
[SIGNATURE: Chester C. Smith]
Chester C. Smith, Commander, U.S. Navy, Investigating Officer.

CODING:
TYPING:
DATE:

— page 178 —
NAVAL MESSAGE 0

DATE AND
TIME GROUP
220953

(PAGE TWO OF TWO)

RECEIPT THIS DESPATCH VIA TENDER ALSO ADVISE ROUTE TO AREA AND ETA
OFF PULO BRAS NORTHWEST SUMATRA

ACTION OFFICER

T.O.R.
FROM
VIXO
CTF 71

HOW TRANSMITTED:
ACTION:
NAOF
CHILDS

SYSTEM: GETID
INFO:

COPY TO
REC'D

RELEASED BY:

PRECEDENCE: PRIORITY
A true copy. Attest:
CODING: CLC

TYPING: LANGLEY

[SIGNATURE: Chester C. Smith]
Chester C. Smith, Commander, U.S. Navy,
Investigating Officer.

DATE: 22 MARCH 1943

— page 179 —
DATE AND
TIME GROUP
0716Z/18

NAVAL MESSAGE

CONSIDER EFFICIENCY OF PATROL WOULD BE GREATLY ENHANCED IF YOU
SUBMARINES CAN CALL CEYLON BEFORE PROCEEDING PATROL AREA. THEY
COULD THEN BE GIVEN A LARGE AMOUNT OF DETAILED INFORMATION WHICH
IT WOULD BE IMPRACTICABLE TO SIGNAL.
(2) I CONSIDER IT ALSO DESIRABLE YOU SUBMARINE SHOULD OPERATE
UNDER CONTROL OF FO CEYLON WHO OPERATES MY SUBMARINES IN MALACCA
STRAIT AND MARTABAN AREA.
(3) PLEASE SAY IF ABOVE PROPOSALS ARE ACCEPTABLE
(4) NOIC FREMANTLE PLEASE PASS TO CTF 71

[HANDWRITTEN: c.c.d]

COPY TO
} REC'D
RELEASED BY:

ACTION OFFICER

T.O.R. 1145/18
FROM | CINCEF
HOW TRANSMITTED: | HAND
ACTION: | CTF 71
SYSTEM: | H
INFO: | FO CEYLON

PRECEDENCE: | PRIORITY
CODING:
TYPING: | BARNHILL
DATE: | 18MAR43

A true copy. Attest: [SIGNATURE: C. Smith]
Chester C. Smith, Commander, U.S. Navy, Investigating Officer.

— page 180 —
NAVAL MESSAGE

DATE AND
TIME GROUP
190156

WILL REPLY TO CINCEF 0716Z/18 AFTER RECEIPT OF INFORMATION
FROM FO CEYLON DIRECTED BY CINCEF 0516Z/18 XX DUE EXTRA DISTANCE

AND TIME INVOLVED DO NOT CONSIDER STOP AT CEYLON FOR DETAILED
INFORMATION WARRANTED XX DO NOT REPEAT NOT CONCUR IN SHIFT OF

OPERATIONAL CONTROL

ACTION OFFICER

COPY TO
}REC'D

T.O.R.
HOW TRANSMITTED:
SYSTEM: GETID
RELEASED BY:

FROM
ACTION:
INFO:

CTF 71
COMSOUWESPAC

PRECEDENCE: PRIORITY
CODING: CUNNING-HAM
TYPING: BROWN
DATE: MARCH 19,1943

A true copy, Attest:
[SIGNATURE: Chester C. Smith]
Chester C. Smith, Commander, U.S. Navy, Investigating Officer.

— page 181 —
NAVAL MESSAGE

DATE AND
TIME GROUP
0351Z/20

YOUR 0716Z/18 X ADDITIONAL DISTANCES AND TIME INVOLVED BY STOP AT
CEYLON AND DIRECTIVES AS TO MAINTENANCE OF THIS PATROL RENDER IT

IMPRACTICABLE EITHER TO SHIFT OPERATIONAL CONTROL OR TO DIVERT SUBMARINE
IN ORDER OBTAIN MORE DETAILED INFORMATION X GRENADIER NOW DEPARTING

FREMANTLE TWENTY MARCH WITH ORDERS PROCEED VICINITY SALANG ISLAND THENCE
EXPLOIT LIKELY TRADE LANES TOWARD RANGOON X BASED ON INFORMATION REQUESTED

MY 0440Z/17 WHICH HAS NOT YET BEEN RECEIVED AND ON FURTHER SUGGESTIONS
FROM YOU WILL MODIFY THESE INSTRUCTIONS AS MAY BE NECESSARY TO AVOID

INTERFERENCE WITH YOUR SUBMARINES X

ACTION OFFICER

COPY TO

T.O.R. | HOW TRANSMITTED: | SYSTEM: | INFO: | RELEASED BY: | }REC'D
-------|||||
FROM   | ACTION           |          |                |              |
CTF 71 | CINCEF           |          | COM 7th FLEET  |              |
       |                  |          | FO CEYLON      |              |

PRECEDENCE: PRIORITY | CODING: | TYPING: LANGLEY | DATE 20 MARCH 1943
A true copy. Attest:
[SIGNATURE: Chester C. Smith] Commander, U.S. Navy, Investigating Officer.

— page 182 —
NAVAL MESSAGE

DATE AND
TIME GROUP
190555

THIS IS MOST SECRET X CONCUR FULLY YOUR 190156 X MAKE NECESSARY
REPRESENTATION ACCORDINGLY X COMSEVENTH FLEET SENDS TO
COMTASKFOR 71

ACTION OFFICER

T.O.R. [HANDWRITTEN: 0636/19Z]
FROM
RDO CANBERRA

HOW TRANSMITTED: BP 750/112950
ACTION:
USRAD PERTH

SYSTEM: BOSOF
INFO:

COPY TO
} [HANDWRITTEN: REC'D]
RELEASED BY:

PRECEDENCE: P
A true copy. Attest:
[SIGNATURE: Chester C. Smith]
Chester C. Smith, Commander, U.S. Navy, Investigating Officer.

CODING: CUNNINGHAM
TYPING: LAWRENCE
DATE: 19 MARCH 1943

— page 183 —
S-E-C-R-E-T

March 18, 1943.

Memorandum for Commanding Officer, U.S.S. GRENADIER.

1. The following is a summary of patrols now assigned submarines
this area:

(a) GUDGEON departed FREMANTLE March 13 for patrol SURABAYA and
eastern PHILIPPINES. Starts return FREMANTLE 24 April.

(b) TAMBOR patrolling central PHILIPPINES. Starts return FREMANTLE
2 April.

(c) TAUTOG patrolling BANDA SEA area until 9 April when she starts
return FREMANTLE.

(d) THRESHER at FREMANTLE.

(e) GRAYLING departs FREMANTLE about 18 March for patrol off MANILA
BAY. Starts return FREMANTLE about 28 April.

(f) TROUT departing FREMANTLE about 22 March for patrol vicinity
ANAMBAS ISLAND. Starts return FREMANTLE about 28 April.

(g) GAR patrolling off MIRI until about 21 March at which time she
starts return FREMANTLE.

2. Recent intelligence on INDIAN OCEAN area follows:

(a) Indications GERMAN raiders "H" and "E" and JAP KUNIKAWA MARU
operating in INDIAN OCEAN.

(b) The most recent known attack by unknown unit was made December
7, 1942 in position 27-48 south, 53-58 east.

(c) Raider "H" is probably Fruit ship "MICHEL" of Atlas Levante
Line. She may be a sister ship of "CAIRO".

(d) It is thought raider "E" is the "SANTA CRUZ" of the Olden-Burg
Line. Length 380 feet, Gross tonnage 3,862. Speed at least
18 knots.

(e) The armament of all raiders is approximately the same 6-5.5
inch to 6 inch guns firing 4 to the broadside, 2 twin torpedo
tubes, 1 or 2 aircraft, some 3 inch or 4 inch and lighter
AA guns. [HANDWRITTEN: ccl]

(f) Blockade running by AXIS merchant ships between EUROPE and the
FAR EAST is in an increasing scale. Several ships are prepar-
ing to sail from the FAR EAST in the near future.

A true copy. Attest:
[SIGNATURE: Chester C. Smith]
Chester C. Smith,
Commander, U.S. Navy,
Investigating Officer.
-1-

— page 184 —
S-E-C-R-E-T
March 18, 1943.
Memorandum for Commanding Officer, U.S.S. GRENADIER.

(g) A blockade runner was recently intercepted which had passed
through the following approximate positions:

(1) Lat. 7 south, Long. 104 east.
(2) Lat.28 south, Long. 75 east.
(3) Lat.45 south, Long. 30 east.

A similar route is thought to be used by most inward and
outward blockade runners.

(h) D/F on JAP subs:

(1) 11 February (doubtful) within area 15° to 25° south
90° to 110° east.
(2) 23 February northern part of Bay of BENGAL.
(3) 27 February northern part of Bay of BENGAL.
(4) 3 March center of Bay of BENGAL.

(i) H.M.I.S. BENGAL and Dutch tanker ONDINA were attacked by 2
JAP raiders in position lat. 20 south, long. 93 east on the
11th of February, 1943.

(j) The KISOGIWA MARU was recently routed as follows: Departed
SINGAPORE 2/17, off MALACCA 18-24, at PENANG 26-27, at
SEBANG 3/1-2, at PADANG 3-8, at SABANG 11-12, arrives
PENANG 14th.

(k) Indications JAP submarines depart from PENANG ISLAND for
patrol CEYLON area. On the 13th of February the I-29 left
PENANG for patrol this area.

(l) Recent reports indicate only light forces based in SUMATRA.

(m) At one time the SINGAPORE STRAITS were closed to night
shipping due to floating mines.

(n) Reports have been received of enemy cruisers being repaired
at PENANG.

3. Weather and Current Information:

(a) The northeast monsoon prevails in the western entrance of
MALACCA STRAIT from November to April, which is the fair
season, [HANDWRITTEN: col] the weather being then more settled, there are
seldom any hard squalls, and there is less thunder, lightning,
and much less rain than in the other season. Late in March
the northeast and northerly winds become light and variable,
with strong land breezes at night.

A true copy. Attest:
[SIGNATURE: Chester C. Smith]
Commander, U.S. Navy, Investigating Officer.

— page 185 —
S-E-C-R-E-T
Memorandum for Commanding Officer, U.S.S. GRENADIER.

(b) Around PENANG the prevailing winds from January to June are
northeast and northwest.

(c) Through MALACCA STRAIT there is a constant northwesterly set,
but near the southward of the AROA ISLANDS, where the STRAIT
is considerably narrow, it is only felt by its action on the
flood current, decreasing the velocity of the flood current
and almost overcoming it during neaps, and increasing that of
the ebb to the same extent.

(d) Additional information will be found in sailing directions
H.O. No. 160 and 162.

4. According to the latest information dated March 1942, all
lights on the coast of INDIA have been extinguished.

5. QCA messages effecting entry into CALCUTTA and COLOMBO will
be issued prior your departure. British Admiralty charts of
your assigned area have been provided you under separate
cover.

6. Enroute north you may sight U.S.S. WM. B. PRESTON enroute
EXMOUTH GULF to FREMANTLE.

7. On CHRISTMAS ISLAND 4 guns estimated at 5 inch were noted by
THRESHEH installed in a line along the beach from ROCKY POINT
to a position in front of the hospital buildings, the latter
plainly marked with red crosses on the roofs. A possible gun
emplacement on SMITH POINT was also noted.

8. BURN THIS MEMORANDUM PRIOR CROSSING LONGITUDE 100° EAST.

H.H. MCLEAN,
Captain, U.S. Navy.

A true copy. Attest:
[SIGNATURE: Chester C. Smith]
Chester C. Smith,
Commander, U.S. Navy,
Investigating Officer.
March 18, 1943.

— page 186 —
S-E-C-R-E-T

March 20, 1943.

Additional to Memorandum for Commanding Officer, U.S.S. GRENADIER.

1. An enemy submarine base is definately known to be
   established at PENANG.

2. In February an unidentified ship was routed to
   following ports: SELETAR, PENANG, BELEWAN, PORT
   BLAIR, RANGOON, SABANG, SELETAR.

3. SABANG was used as an air base during drive in INDIAN [HANDWRITTEN: OCEAN]
   when ANDSMANS was taken by enemy.

4. Burn this additional memorandum prior crossing
   longitude 100° East.

H.H. MCLEAN,
Captain, U.S. Navy.

A true copy. Attest:
[SIGNATURE: Chester C. Smith]
Chester C. Smith,
Commander, U.S. Navy,
Investigating Officer.

— page 187 —
NAVAL MESSAGE
DATE AND
TIME GROUP
101820-Part 1
101944-Part 2
SERIAL 1 TO GRENADIER ONLY XX THIS IS PART 1 OF 2 PARTS X
DUTCH SUBMARINE 021DS DEPARTS COLOMBO APRIL 11TH TO PASS
THROUGH POINTS (05 DEG 41 MIN NORTH 86 DEG 30 MIN EAST)

CMA (06 DEG 05 MIN NORTH 92 DEG 01 MIN EAST) AND 359 DEG
10 MILES FROM PULO RONDO X ABOUT 1500Z 15TH EXPECTED TO

PASS LATTER NAMED POSITION X WILL THEN PATROL SOUTH OF 06 DEG 30
MIN NORTH AND EAST OF 97 DEG 30 MIN EAST X SHE WILL RETURN TO

COLOMBO THROUGH SAME POSITIONS ABOUT APRIL 24TH X ON 12TH APRIL [HANDWRITTEN: acl]
DUTCH SUBMARINE 024DS WILL LEAVE COLOMBO PASSING THROUGH POINTS

(04 DEG 45 MIN NORTH 86 DEG 30 MIN EAST) AND (04 DEG 18 MIN NORTH 92
DEG 30 MIN EAST) EXPECTED LATTER NAMED POSITION ABOUT 0800Z

15TH X PART TWO OF CTF 71 SERIAL 1 TO GRENADIER ONLY XX AFTER PATROL [HANDWRITTEN: acl]
OFF WEST COAST SUMATRA BETWEEN LAT (01 DEG 30 MIN NORTH) AND (04 DEG

30 MIN NORTH) MAY RETURN COLOMBO AT ANY [HANDWRITTEN: TIME] BETWEEN 19TH AND 30TH [HANDWRITTEN: acl]
APRIL THROUGH SAME POSITIONS X BETWEEN 13TH AND 30TH APRIL DO NOT

ATTACK ANY SUBMARINE BETWEEN LATS 06 DEG 30 MIN NORTH AND EQUATOR X
ON LEAVING PATROL YOUR ROUTE SHOULD BE TO EAST OF (90 DEG EAST) X

THESE SUBS HAVE BEEN ORDERED NOT TO ATTACK SUBMARINES BETWEEN DU AND
LAT (06 DEG 30 MIN NORTH) BETWEEN LONGITUDES 90 DEG AND 97 DEG 30
MIN EAST
ACTION OFFICER
MIN EAST

T.O.R.
FROM
CTF 71
(VIXO)
HOW TRANSMITTED
ACTION:
GRENADIER
(NYGA)
SYSTEM:
FEMYH
INFO:
COPY TO
} [HANDWRITTEN: REC'D]
RELEASED BY: CLC

PRECEDENCE:
A true copy.
CODING:
Attest:
[SIGNATURE: Chester C. Smith]
Chester C. Smith, Commander, U.S. Navy, Investigating Officer.
TYPING: CUNNINGHAM
DATE: 10 APR 43

— page 188 —
NAVAL MESSAGE

DATE AND
TIME GROUP
100544Z

MY 100544Z PART 2 FINAL X THENCE PATROL OFF WEST COAST SUMATRA
BETWEEN LATITUDE 01 DEG 30 MIN N AND 04 DEG 30 MIN NORTH X 024DS

MAY RETURN TO COLOMBO THROUGH SAME POSITIONS AT ANY TIME BETWEEN
19TH AND 30TH APRIL (3) YOU ARE NOT TO ATTACK ANY S/M BETWEEN [HANDWRITTEN: cc/]

LATITUDES 06 DEG 30 MIN N AND EQUATOR BETWEEN 13TH AND 30TH APRIL
(4) YOUR ROUTE ON LEAVING PATROL SHOULD BE TO EAST OF 90 DEG EAST

(5) 021DS AND 024DS HAVE BEEN ORDERED NOT TO ATTACK S/M'S BETWEEN
DU AND LATITUDE 06 DEG 30 MIN NORTH BETWEEN LONGITUDES 90 DEG EAST

AND 97 DEG 30 MIN EAST

ACTION OFFICER OPER

T.O.R. 1520/10TH
HOW TRANSMITTED: RAN BY HAND
SYSTEM: PLAIN
RELEASED BY:
COPY TO
}REC'D
FROM: NOIC COLOMBO
ACTION: GRENADIER
INFO: CTF 71; CAPT (S) 4 SUB
FLOTILLA: CINC EF

PRECEDENCE: IMPORTANT
CODING: RAN
TYPING: CLC
DATE: 10 APR 43
A true copy. Attest:
[SIGNATURE: Chester C. Smith]
Chester C. Smith, Commander, U.S. Navy, Investigating Officer.

— page 189 —
DATE AND
TIME GROUP
100520Z

NAVAL MESSAGE

MY 100544Z APRIL PART 1 X 021DS WILL LEAVE COLOMBO 11TH APRIL
ROUTED THROUGH POSITION (N) 05 DEG 41 MIN NORTH 086 DEG 30 MIN

EAST (O) 06 DEG 05 MIN NORTH 92 DEG 01 MIN EAST (P) 359 DEG PULO
RONDO 10 MILES EXPECTED PASS POSITION P ABOUT 15TH 1500Z THENCE [HANDWRITTEN: C.C.S.]

TO PATROL SOUTH OF 06 DEG 30 MIN N AND EAST OF 97 DEG 30 MIN E
UNTIL ABOUT 24TH APRIL WHEN SHE WILL RETURN TO COLOMBO THROUGH

SAME POSITIONS (2) 024DS WILL LEAVE COLOMBO 12TH APRIL ROUTED
THROUGH POSITION (D) 04 DEG 45 MIN 86 DEG 30 MIN (E) 04 DEG 18 MIN

92 DEG 30 MIN IS EXPECTED PASS POSITION E ABOUT 15TH 0800Z [HANDWRITTEN: C.C.S.]

ACTION OFFICER OPER

T.O.R. 1520/10TH | HOW TRANSMITTED: RAN BY HAND | SYSTEM: PLAIN | COPY TO | REC'D
RELEASED BY:
FROM: NOIC COLOMBO | ACTION: GRENADIER | INFO: CTF 71; CAPT (S) 4 SUB
| | FLOTILLA: CINC EF

PRECEDENCE: IMPORTANT( | CODING: RAN | TYPING: CLC( | DATE: 10 APR 43
A true copy. Attest:
[SIGNATURE: Chester C. Smith] Commander, U.S. Navy, Investigating Officer.

— page 190 —
NAVAL MESSAGE

DATE AND
TIME GROUP
111355

ACTION GRENADIER XX SERIAL 3 XX PRIOR SIXTEEN
APRIL INFORMATION REQUIRED AS TO FUTURE HUNTING PROSPECTS
IN YOUR ASSIGNED AREA X ADVISE WHEN CONDITIONS PERMIT

ACTION OFFICER

T.O.R. HOW TRANSMITTED: BAKERS SYSTEM: FEMYH RELEASED BY:
FROM ACTION: INFO:
REC'D
CTF 71 TG 71.1

PRECEDENCE: ROUTINE CODING: ALBERS TYPING: BEST DATE: 11 APR 1943
A true copy. attest:
[SIGNATURE: Chester C. Smith]
Chester C. Smith, Commander, U.S. Navy, Investigating Officer.

— page 191 —
NAVAL MESSAGE.

DATE AND
TIME GROUP
151200/Z

SERIAL 2 22 HOURS H APRIL 6th DAMAGED 1 SMALL SHIP 3 MILES WEST OF
PILGRIMS COURSE 122 DEGREES. SPENT FIRST 6 DAYS LEMVOILAN. NO
OTHER CONTACT PILGRIMS TO 20 FATHOMS SOUTH EAST RANGOON AND WEST
TO 096 DEGREES. LANES AND PASSES COVERED. 65% FUEL REMAINING.
BAKER STRENGTH 4. ASSIGNED AREA LIKE RIPE HERRING. 13 DEGREES
13 MINUTES NORTH 96 DEGREES 55 PRESENT POSITION.

ACTION OFFICER OPER.

T.O.R. 160900/H HOW TRANSMITTED: BY HAND. SYSTEM: BRITISH
FROM GRENADIER ACTION: CTF-71

COPY TO
INFO:
RELEASED BY:
}REC'D

PRECEDENCE: PRIORITY CODING: RAN TYPING: CHISMARK DATE: 16 APR 43
A true copy. [HANDWRITTEN: Attest:]
[SIGNATURE: Chester C. Smith] Commander, U.S. Navy, Investigating Officer.

— page 192 —
NAVAL MESSAGE

DATE AND
TIME GROUP
200840

ACTION GRENADIER ONLY X MODIFY MY OPORD SEVEN DASH FOUR THREE
PARAGRAPH THREE ABLE FIVE AS FOLLOWS XX SERIAL 4 XX AT
DARK TWO THREE APRIL DEPART PRESENT AREA FROM APPROXIMATE
POSITION SEVEN NORTH NINE FIVE EAST PROCEED THROUGH POINTS TWO
SEVENTY DEGREES TWENTY MILES FROM PULO BRAS AND THREE DASH ZERO
ONE NORTH NINE FIVE DASH ZERO ONE EAST THENCE SOUTH OF SUMATRA TO
SUNDA STRAIT X PATROL THIS STRAIT ABOUT ONE WEEK PAYING PARTICULAR
ATTENTION TO LANES IN VICINITY THWARTWAY ISLAND X START RETURN
PINAFORE DARK MAY FOUR RECONNOITERING BIRCH AS PREVIOUSLY DIRECTED
X ACKNOWLEDGE THIS DESPATCH WHEN FEASIBLE

ACTION OFFICER

COPY TO
}REC'D

T.O.R.
HOW TRANSMITTED
SYSTEM:
INFO:
RELEASED BY:
FROM
CTF 71
ACTION:
TG 71.1
COM 7th FLEET
CINC E F

PRECEDENCE: ROUTINE
CODING:
TYPING: ROTH
DATE: 20 APR 43
A true copy. [HANDWRITTEN: Attest:]
[SIGNATURE: Chester C. Smith], Commander, U.S. Navy, Investigating Officer.

— page 193 —
[Circle] NAVAL MESSAGE [Circle] [Circle]

DATE AND
TIME GROUP
200845Z

FROM CTF 71 TO GRENADIER (R) CINCEF COMMANDER 7TH FLEET.
FOLLOWING IS MODIFICATION MY OPORD 7-43 PARA 3A5: ON APRIL 23
AT DARK DEPART PRESENT AREA FROM APPROXIMATE POSITION 7 DEG
NORTH 95 DEG EAST PASSING THROUGH POINT A 270 DEG 20 MILES FROM
PULO BRAS POINT B 3 DEG 01 MIN NORTH 95 DEG 01 MIN EAST. SERIAL
4B TO GRENADIER. THENCE SOUTH OF SUMATRA TO SUNDA STRAIT. [HANDWRITTEN: ccJ]
PAYING PARTICULAR ATTENTION TO LANES VICINITY THWARTWAY, PATROL
THIS STRAIT APPROXIMATELY ONE WEEK. COMMENCE HOMEWARD TREK AT DARK
MAY 4 RECONNOITERING BIRCH AS PREVIOUSLY DIRECTED. WHEN FEASIBLE
ACKNOWLEDGE THIS SIGNAL

ACTION OFFICER

COPY TO
}REC'D

T.O.R. | HOW TRANSMITTED | SYSTEM | "O" | RELEASED BY:
FROM | ACTION | INFO
CTF 71 | GRENADIER | CINCEF | COM7HFLT

PRECEDENCE: R
CODING: LAWRENCE
TYPING: LAWRENCE
DATE: 20 APRIL 43

A true copy, attest:
[SIGNATURE: Chester C. Smith] Commander, U.S. Navy, Investigating Officer.

— page 194 —
NAVAL MESSAGE

DATE AND
TIME GROUP
271030

ACTION GRENADIER ONLY X NO ACKNOWLEDGEMENT RECEIVED MY SERIAL
FOUR WHICH DIRECTED YOU DEPART AREA TWENTY THREE APRIL FOR CON-
TINUATION PATROL IN HARPY XX SERIAL 5 XX ACKNOWLEDGE RECEIPT
AT EARLIEST FEASIBLE TIME ADVISING POSITION
[HANDWRITTEN: ccl]

ACTION OFFICER

COPY TO
[HANDWRITTEN: }REC'D]

T.O.R.
HOW TRANSMITTED:
SYSTEM: FEMYH
RELEASED BY:
FROM
CTF 71
ACTION:
TG 71.1
INFO:
CINGEF (see 271100Z)

PRECEDENCE: ROUTINE
CODING: ALBERS
TYPING: BEST
DATE: 27 APR 1943
A true copy. Attest:
[SIGNATURE: Chester G. Smith] Commander, U.S. Navy, Investigating Officer.

— page 195 —
NAVAL MESSAGE

DATE AND
TIME GROUP
271100Z

FROM CTF 71 FOR GRENADIER-REPEATED CINCEF. NO ACKNOWLEDGEMENT
RECEIVED MY SERIAL FOUR BAKER WHICH DIRECTED YOU DEPART
AREA TWENTYTHREE APRIL FOR CONTINUATION PATROL IN HARPY.
THIS IS SERIAL FIVE CHARLIE. ACKNOWLEDGE RECEIPT AT
EARLIEST FEASIBLE TIME ADVISING POSITION

THIS PARAPHRASE OF 271030

ACTION OFFICER

COPY TO
}REC'D

T.O.R.
FROM
GZH

HOW TRANSMITTED:
ACTION:
NAW

SYSTEM:

INFO:
CINCEF

RELEASED BY:

PRECEDENCE:
R
A true copy. [HANDWRITTEN: Attest:]
[SIGNATURE: Chester G. Smith] Commander, U.S. Navy, Investigating Officer.

CODING:

TYPING:

DATE:
27 APRIL

— page 196 —
NAVAL MESSAGE

DATE AND
TIME GROUP
[HANDWRITTEN: 300431 Z]

NO ACKNOWLEDGEMENT MY 200845 Z RECEIVED FROM GRENADIER X
IN VIEW POSSIBILITY NON RECEIPT DUE RADIO MATERIAL FAILURE
GRENADIER MAY BE DEPARTING AREA AT DARK ONE MAY IN ACCORDANCE
ORIGINAL ORDERS BY REVERSE OF OUTBOUND ROUTE X

ACTION OFFICER

T.O.R.
FROM
COMTASKFOR 71

HOW TRANSMITTED:
ACTION:
CINC E.F.

COPY TO
SYSTEM:
INFO:

}REC'D
RELEASED BY:

PRECEDENCE:
ROUTINE
A true copy. Attest:
[SIGNATURE: Chester C. Smith]
Chester C. Smith, Commander, U.S. Navy, Investigating Officer.

CODING:

TYPING:
ROTH

DATE:
30 APR 1943

— page 197 —
[STAMP: SECRET]
SUBMARINE SQUADRON SIX
SHIP'S DEPARTURE CHECK OFF LIST SQUAD FORM 4.
U. S. S. GRENADIER (SS 210) Date 3 - 17 , 194

1. I have personally inspected equipment and machinery set opposite of my signature and to the best
   of my knowledge there are no defects or deficiencies except as noted:

                                                              Date
                                                              Completed                               Name

2. Inspect cooler zincs in all air, lubrication oil,
   and fresh water systems for main and auxiliary
   engines, main motors, main and auxiliary gen-
   erators, and reduction gears. Renew wasted
   zincs.                                                     [HANDWRITTEN: 3/5/43]                 [HANDWRITTEN: Erishman] [HANDWRITTEN: ok]

(a) Extremely thorough and complete lubri-
    cation of all external or exposed operating
    gear.                                                     [HANDWRITTEN: 3/13/43]                [HANDWRITTEN: J N CRITCHLOW Jr]

(b) Assure satisfactory condition of packing in
    stuffing glands for all external or exposed
    operating gear.                                           [HANDWRITTEN: 3/13/43]                [HANDWRITTEN: J.N. CRITCHLOW Jr.]

(c) Torpedo tubes and appurtenances:
    (1) Doors and shutters                                    [HANDWRITTEN: 3/6/43]                 [HANDWRITTEN: A.J. TOULON Jr.]
    (2) Firing valves                                         [HANDWRITTEN: 3/6/43]                 [HANDWRITTEN: A.J. TOULON Jr.]
    (3) Interlocks                                            [HANDWRITTEN: 3/6/43]                 [HANDWRITTEN: A.J. TOULON Jr.]
    (4) Spindles                                              [HANDWRITTEN: 3/6/43]                 [HANDWRITTEN: A.J. TOULON Jr.]

(d) Refrigerating and air-conditioning
    systems                                                   [HANDWRITTEN: 3/13/43]                [HANDWRITTEN: Pranka J.T.]

(e) H. P. Air Compressors                                     [HANDWRITTEN: 3/13/43]                [HANDWRITTEN: Pranka J.T.]

(f) L. P. Air Compressors                                     [HANDWRITTEN: 3/13/43]                [HANDWRITTEN: Pranka]

(g) Hull ventilation and engine air in-
    take valves                                               [HANDWRITTEN: 3/13/43]                [HANDWRITTEN: Pranka]

(h) Hydraulic systems                                         [HANDWRITTEN: 3/13/43]                [HANDWRITTEN: Pranka]

(i) Periscope hoisting                                        [HANDWRITTEN: 3/13/43]                [HANDWRITTEN: Pranka]

(j) Trimming and drainage systems                             [HANDWRITTEN: 3/13/43]                [HANDWRITTEN: Pranka]

(k) Bow and stern planes                                      [HANDWRITTEN: 3/13/43]                [HANDWRITTEN: Pranka]

(l) Inside and outside exhaust valves—
    Main and auxiliary engines                                [HANDWRITTEN: 3/5/43]                 [HANDWRITTEN: Erishman] [HANDWRITTEN: ok]

(m) Fuel and lub oil purifiers                                [HANDWRITTEN: 3/5/43]                 [HANDWRITTEN: Erishman] [HANDWRITTEN: ok]

(n) Main Engines                                              [HANDWRITTEN: 3/5/43]                 [HANDWRITTEN: Erishman] [HANDWRITTEN: ok]

(o) Auxiliary Engines                                         [HANDWRITTEN: 3/5/43]                 [HANDWRITTEN: Erishman] [HANDWRITTEN: ok]

(p) Main motors                                               [HANDWRITTEN: 3/1/43]                 [HANDWRITTEN: Whitlock] [HANDWRITTEN: ok]

(q) Main generators                                           [HANDWRITTEN: 3/5/43]                 [HANDWRITTEN: Whitlock] [HANDWRITTEN: ok]

(r) Auxiliary generators                                      [HANDWRITTEN: 3/5/43]                 [HANDWRITTEN: Whitlock] [HANDWRITTEN: ok]

(s) Main reduction gear units                                 [HANDWRITTEN: 3/4/43]                 [HANDWRITTEN: Whitlock] [HANDWRITTEN: ok]

(t) Main controls                                             [HANDWRITTEN: 3/5/43]                 [HANDWRITTEN: Whitlock] [HANDWRITTEN: ok]

(u) Blow and vent manifolds                                   [HANDWRITTEN: 3/13/43]                [HANDWRITTEN: Pranka]

(v) Battery ventilation system                                [HANDWRITTEN: 3/5/43]                 [HANDWRITTEN: Whitlock] [HANDWRITTEN: ok]

(w) Steering gear                                             [HANDWRITTEN: 3/13/43]                [HANDWRITTEN: Pranka]

(x) Main ballast tank flood                                   [HANDWRITTEN: 3/13/43]                [HANDWRITTEN: Pranka]

(y) External fuel piping and fittings                         [HANDWRITTEN: ok]                     [HANDWRITTEN: Erishman]

A true copy. Attest: [SIGNATURE: Chester C. Smith]
Commander, U.S. Navy, Investigating Officer

— page 198 —
[STAMP: SECRET]

3. Main Power and Auxiliary Electrical Equipment
(a) Visual inspection of:
| | Date Completed | Name |
|---|---|---|
| (1) Main motors | [HANDWRITTEN: 3/1/43] | [HANDWRITTEN: Whitlock] |
| (2) Main generators | [HANDWRITTEN: 3/5/43] | [HANDWRITTEN: Whitlock] |
| (3) Auxiliary generators | [HANDWRITTEN: 3/5/43] | [HANDWRITTEN: Whitlock] |
| (4) Main controls | [HANDWRITTEN: 3/5/43] | [HANDWRITTEN: Whitlock] |
| (5) Switchboards | [HANDWRITTEN: 3/5/43] | [HANDWRITTEN: Whitlock] |
| (6) Cable banks in engine room | [HANDWRITTEN: 3/5/43] | [HANDWRITTEN: Whitlock] |

4. On departure from PELIAS:
Fuel oil on board, gallons [HANDWRITTEN: 93,723] Lub oil on board, gallons [HANDWRITTEN: 6,368]
Symbol oil on board, gallons [HANDWRITTEN: 5190] Number of torpedoes on board [HANDWRITTEN: 20]

Original to CSS SIX.
Copy to CDS
Repair Officer, PELIAS.
Squadron Torpedo Officer.
Squadron Engineering Officer.

A true copy. Attest:
[SIGNATURE: Chester C. Smith]
Chester C. Smith,
Commander, U.S. Navy,
Investigating Officer.

Submitted:-
J.A. FITZGERALD
Lieutenant Commander, U. S. Navy,
Commanding.

— page 199 —
END OF REEL
JOB NO. [HANDWRITTEN: F 108]

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

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THE PROPERTY OF
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GOVERNMENT

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