[Bubblehead1980]

TMO 2.5 Update BH V 2.0
Donation Narwhal
100 difficult, cams, contacts on for testing new mission added to campaign.



War Patrol Report
USS Nautilus SS-168
FOURTH War Patrol
8 August-27 August 1942


PROLOGUE

Returned from FOURTH War Patrol on 14 July, 1942, docked at Submarine Base Pearl Harbor. Voyage and damage repairs began immediately
as NAUTILUS was prepared for a special assignment on upcoming patrol. Provisions and eight MK 14 torpedoes loaded 5-6 August. On 7 August,
ninety men of "B" Company, Second Marine Raider Battalion, along with their equipment were brought aboard. Ready for sea 8 August.



NARRATIVE

NAUTILUS, along with ARGONAUT formed Task Group 7.15 (TG 7.15) to conduct a special mission for this patrol. NAUTILUS and ARGONAUT together,
was assigned to transport, land, support, and extract the 121 men of the Marine Second Raider
Battalion on Butaritari Island, Makin Atoll, Gilbert Islands. NAUTILUS transported "B" Company of the Second Raiders, a total of 90 men,
along with their weapons and equipment.

In addition to successful completion of the special mission, four torpedo, and one gun attack-shore bombardment were conducted.
Three enemy vessels were sunk, two by torpedo, one by gunfire. Four valuable, large, and full fuel-oil storage tanks were destroyed by
gunfire.




8 August

0700 Departed Submarine Base Pearl Harbor, T.H. for Special Mission.

1001 Trim Dive

1020 Surface


9-14 August

En route Makin Atoll, Gilbert Islands on course 235 11.5 knots. Daily routine of dives, maintenance,
and drills conducted, with exception of 14 August, when the Marines were permitted on deck to conduct
exercises in the morning and after dark.

15 August

1930 Marines on deck, conducted launch exercise.

16 August

0600 15 NM SE of Butaritari Island, Maki Atoll, Gilbert Islands.

0643 Submerged just before dawn to conduct reconnoiter of Butaritari Island.

1500 Observed enemy facilities ashore, including large fuel storage tanks. Two small PC
type vessels in lagoon. Numerous installations. No heavy shore defenses observed.

2000 Preparations for landing operations began.

2036 Surface


17 August

0320 Flooded to decks awash for boat deployment.

0326 B Company departed in boats. 3-1N 172-55E 6 NM South of Butaritari Islands

0400 Received orders to conduct bombardment of Ukiangong Point
at 0700 hours in support of Raiders.


0623 Submerged 5 NM off Ukiangong Point for approach before dawn.

0645 GENERAL QUARTERS-BATTLE SURFACE-GUN ACTION for shore bombardment.

0657 Surface

0700 Commenced firing

0705 Destroyed Large Fuel tank on Butaritari Island

0709 Destroyed Large Fuel tank on Butaritari Island

0715 Destroyed Large Fuel tank on Butaritari Island

0725 Damaged Bunker/Observation post Ukiangong Point, Butaritari Island

0730 Destroyed Large Fuel tank on Butaritari Island

0740 Sunk Tug Boat (1000 tons) in Lagoon by gunfire 3-04N 172-47E.

0743 Fired on small boat underway in lagoon, out of range.

0745 Ceased fire. Multiple fires of fuel tanks and sunken tug burning strong,
visible for miles.

0746 Submerged

0750 Secured General Quarters

1137 Aircraft spotted bearing 264 9000 yards (Aircraft Contact No.1) MAVIS.
Ordered 150 ft.

1227 Periscope depth. Spotted MAVIS (Aircraft Contact No.2) Dropped bombs
depth charges in water, about 500 yards off bow. Ordered 150 ft.

1303 Periscope depth. All clear.

1330 Aircraft (Aircraft Contact No.3) arrived on scene. MAVIS/EMILY

1334 Bombed by MAVIS flying boat, close astern. Minor damage (See Damage Section)

1335 More explosions, above, not close.

1430 Periscope depth. Heavy enemy air activity in area.
Large four engine flying boat landed in lagoon. (Aircraft Contact No.4).
Ordered 100 ft.

1548 Periscope depth. Aircraft bearing 158 (Aircraft Contact No.5)
Ordered 90 ft

2040 Surface.

2330 Unable to locate boats at rendezvous.


18 August


0030 Received message from ARGONAUT, stating recovered seven boats.

0045 Received message from LT COL Carlson stating seventy two men ashore unable to break through
rough tides, will make further attempts in the morning.

0635 Submerged six miles South of Ukiangong Point.


0851 (Aircraft Contact No.6) Spotted EMILY flying boat 185 8000 yards.

0930 Spotted boats.

0937 Surfaced

0945 Submerged, emergency. Multiple aircraft closing on SD radar
(Aircraft Contact No. 7) at 8 and 6 miles.

1000 Unable to conduct extraction due to heavy enemy air presence.

1044 Received radio message, will go for
extraction after sundown.

1257 ( Aircraft Contact No. 8) bearing 110. (3 Zeros)


1522 Sound reported faint props to sea, bearing 273.

1543 Course 278 to investigate sound contact. Props noises indicated ship closing.

1559 Smoke sighted bearing 358.

1606 Masts and smoke spotted, inbound ship. GENERAL QUARTERS-TORPEDO.

1618 Large AK with MS type escort. Course 095 10 knots.

1636 Target Course 060 Speed 9 knots. Position forcing stern shot.

1638 Target Identified as AK DAITOKU MARU 7590 tons.

1640 Tubes No. 5 and No.6 made ready.

1641 Target zigged towards NAUTILUS.

1642 Pinging

1643 (Torpedo Attack No.1) Fired tubes 5,6, at freighter "Down the throat"

1643:15 Premature detonation

1644 Escort closing. Ordered 200 ft, rigged for depth charge, rigged for silent running.

1646 Splashes. Escort above.

1646:31 DC explosions

1647 Several Close DC explosions. Damage reported (See Defects and Damage Section)

1652 Three close DC explosions, above.

1657 DC explosions. Damage reported. See Defects and Damage Section.

1701 Close DC explosion astern.

1705 Escort above. Splashes.

1830 Enemy appears to have lost contact with NAUTILUS at 375 ft depth.

1831 Tracking AK

1900 Lost contact with AK

1935 Lost contact with Escort, possibly "sleeping"


1940 Batteries reported at fifty percent power.

2048 Secured General Quarters

2321 Periscope Depth.

2330 Surface.

2335 Message from LTCOL Carlson via ARGONAUT. Extraction at entrance to lagoon
2345.


19 August

0000 Searched designated extraction area off lagoon entrance.

0037 Spotted enemy MS type escort bearing 337 6000 yards estimated.

0122 GENERAL QUARTERS-TORPEDO.

0130 Torpedo Attack No.2 Fired Tubes 1-4

0131 Two premature detonations

0135 Torpedoes missed

0136 Evading escort on surface, searching for NAUTILUS

0230 Sighted boat, escort 2000 yards off, does not appear spotted boat
or NAUTILUS. Escort appears to be laying to, listening.

0245 Torpedo Attack No.3 Fired tubes 1-3.

0247 Torpedo impact! Large explosion.

0316 Shimushu Class Minesweeper-Escort Vessel 860 tons sunk.
3-04N 172-41E

0325 Recovered boat 1

0605 Recovered boat 2

0610 Recovered Boat 3.

0615 All boats recovered for seventy two men total.

0620 Received message from ARGONAUT, all men recovered, mission accomplished.
Departing area.

0621 Set course 315 flank speed to depart area en route Pearl Harbor.

0700 Overcast, light fog, wind, choppy seas.

0820 DD AK spotted bearing 355 9000 yards

0821 GENERAL QUARTERS-TORPEDO

0852 Tubes 1-4 readied.

0854 (Torpedo Attack No.4) Fired tubes 1-4.

0855:20 Torpedo wake observed running below target. Detonated about 15 yards on opposite side of target

0855:25 Torpedo impact!

0855:30 Torpedo impact!

0855:36 Torpedo impact, failed to detonate-DUD.

0856 Rear DD spotted closing at high speed 3000 yards.
Order 300 ft, rigged for depth charge and silent running.

0901 Multiple large explosions, sounds of ship breaking up.

0902 Pinging. DD above. Splashes

0903 DD explosions astern.

0904 Pinging, second (lead) DD believed on scene.

0905 More breaking up noises.
JOKUJA MARU 7390 tons sunk
3-34N 172-34E

0908 DD above. Many splashes.

0909 Many DC explosions, none close. Above, astern.

0915 DD above. Splashes.

0949 Series of close DC explosions.

0950 Damage reported (See damage section Flooding in engine rooms.

0951 Damage Control party assigned.

0956 DC party reports leaks stopped in engine room. Bilges filled
with four inches of water in compartment. Flooding under
control, pumping water to restore proper control.

1000 DC part reports No.3 electric motor disabled. Stern batteries
damaged.

1018 Sound reports one DD leaving area at high speed, other is about 3000
yards, hunting.
Distant pings audible through out. NAUTILUS at 322 ft depth,
pumping water.

1100 Lost contact with DD.


1130 Secured General Quarters.


2000 Periscope depth


2018 Surface


20 August

0753 Dive! (Aircraft Contact No. 8) SD contact 6 NM closing, fast.

1900 Surface


21-26 August

En route Pearl Harbor


27 August

1105 Docked Submarine Base Pearl Harbor. Terminated War Patrol


CONTACTS


Aircraft Contacts

No.

1.1942/08/17 1137 (local)
H6K MAVIS 3-2N 172-52E
Crs. 270 Alt 1000

2.1942/08/17 1237 (local)
H6K MAVIS/H8K EMILY
3-2N 172-52E


3.1942/08/17 1337 (local)
H6K MAVIS 3-2N 172-52E
Landed in Makin lagoon.

4.1942/08/17 1548 (local)
H6K MAVIS 3-2N 172-46E


5.1942/08/18 0851 (local)
H6K MAVIS 3-1N 172-54E
Crs. 200 Alt 500

6.1942/08/18 0851 (local)
SD only 3-2N 172-54E
Rng. 7 NM Closing


7.1942/08/18 0851 (local)
Two SD contacts 8 and 6 NM
3-1N 172-54E



8.1942/08/18 1257 (local)
3 Zeros 3-6N 172-38E
Crs 100 Alt 4000 Spd 200 knots


9.1942/08/20 0753 (local)
SD Contact 6 NM closing.
7-0N 178-0E


Ship Contacts


No.

1. 1942/08/18 1606(local)
2-59N 172-34E
AK, MS
Crs. 060 Spd. 9 knots
Torpedo Attack No.1


2.1942/08/18 0037 (local)
3-04N 172-41E
MS/Escort
Torpedo Attack No. 2 and No.3


3. 1942/08/19 0820 (local)
3-24N 172-33E
DD(2), AK (4)
Crs. 172
Spd 13 knots
Torpedo Attack No.4


ATTACK DATA

ACTION NARRATIVE

Four torpedo attacks resulting in a 7390 ton AK and 860 ton MS-Escort sunk.
Repeated torpedo failures again cost NAUTILUS a large, important merchantman and led to depth charge attack.


TORPEDO ATTACK NO.1

DATE 1942/08/19
TIME 1643
LAT 3-0N
LONG 172-34E

TYPE OF ATTACK



Ships Sunk
None

Ships Probably Sunk
None

Ships Damaged
None

Ships Probably Damaged
None


TARGET DATA (at firing)

NAME DAITOKU MARU
CLASS KOBYASHI MARU
TYPE AK
COURSE 055
SPEED 6 KTS
BEARING 180
TRUE BEARING 220
RANGE 1100
AOB 0
REMARK
"Down the Throat ****" to try and hit
target after zig just before firing point.


TORPEDO ATTACK NO. 1 TORPEDO FIRE CONTROL DATA (at firing)

TUBE NO. 5
TYPE MK 14
SERIAL NO. 24150
EXPLODER MK 6
SERIAL NO. 1809
GYRO 0
COURSE 258
TRACK 0
METHOD Single bearing
POA MOT
SPREAD 0 degrees
FIRING INTERVAL 5 SECS
DEPTH 3.5 feet
POWER Low [ ] High [X]
HIT Yes [ ] No [X]
ACTUATION Magnetic
ACTUAL ACTUATION Magnetic
MALFUNCTION Yes [X] No [ ]
REMARK
Prematurely Detonated


TUBE NO. 6
TYPE MK 14
SERIAL NO. 24153
EXPLODER MK 6
SERIAL NO. 1812
GYRO 0
COURSE 258
TRACK 0
METHOD Single bearing
POA MOT
SPREAD 0 degrees
FIRING INTERVAL 5 SECS
DEPTH 3.5feet
POWER Low [ ] High [X]
HIT Yes [ ] No [X]
ACTUATION Magnetic
ACTUAL ACTUATION Magnetic
MALFUNCTION Yes [] No [X]
REMARK
Torpedo fired on perfect track for "down the throat"
shot after target zigged towards NAUTILUS at firing point. Sound
heard torpedo merged with target. Believe torpedo ran deeper than set, but
did not observed as was descending to avoid on rushing escort vessel.



OWN SHIP DATA (AT FIRING)

DEPTH 64 ft
COURSE 020
SPEED 3 knots
ANGLE 1.5 degrees down
SEA STATE Calm, light chop.
--------------------------------------------------------------------------------

TORPEDO ATTACK NO.2

DATE 1942/08/19
TIME 0130
LAT 3-04N
LONG 172-41E

TYPE OF ATTACK
Surface-Night


Ships Sunk
None

Ships Probably Sunk
None

Ships Damaged
None

Ships Probably Damaged
None


TARGET DATA (AT FIRING)

NAME NA
CLASS Shimushu
TYPE Minsweeeper-Escort Vessel
COURSE 180
SPEED 6 knots
BEARING 0
TRUE BEARING 091
RANGE 3500 yards
AOB 90 P
REMARK




TORPEDO ATTACK NO. 2 TORPEDO FIRE CONTROL DATA (at firing)

TUBE NO. 1
TYPE MK 14
SERIAL NO. 24151
EXPLODER MK 6
SERIAL NO. 1809
GYRO 0
COURSE 258
TRACK 107
METHOD Single bearing
POA MOT
SPREAD 0
FIRING INTERVAL 5 SECS
DEPTH 5 feet
POWER Low [ ] High [X]
HIT Yes [ ] No [X]
ACTUATION Magnetic
ACTUAL ACTUATION Magnetic
MALFUNCTION Yes [X] No [ ]
REMARK
Prematurely Detonated



TUBE NO. 2
TYPE MK 14
SERIAL NO. 24170
EXPLODER MK 6
SERIAL NO. 1815
GYRO 0
COURSE 050
TRACK 100 P
METHOD Single bearing
POA MOT
SPREAD 0
FIRING INTERVAL 5 SECS
DEPTH 5 feet
POWER Low [ ] High [X]
HIT Yes [ ] No [X]
ACTUATION Magnetic
ACTUAL ACTUATION Magnetic
MALFUNCTION Yes [ ] No [X]
REMARK
Miss, unknown reason.


TUBE NO. 3
TYPE MK 14
SERIAL NO. 24151
EXPLODER MK 6
SERIAL NO. 1809
GYRO 0
COURSE 258
TRACK 107
METHOD Single bearing
POA MOT
SPREAD 0
FIRING INTERVAL 5 SECS
DEPTH 5 feet
POWER Low [ ] High [X]
HIT Yes [ ] No [X]
ACTUATION Magnetic
ACTUAL ACTUATION Magnetic
MALFUNCTION Yes [X] No [ ]
REMARK
Prematurely Detonated



TUBE NO. 4
TYPE MK 14
SERIAL NO. 24179
EXPLODER MK 6
SERIAL NO. 1821
GYRO 0
COURSE 050
TRACK 100 P
METHOD Single bearing
POA MOT
SPREAD 0
FIRING INTERVAL 5 SECS
DEPTH 5 feet
POWER Low [ ] High [X]
HIT Yes [ ] No [X]
ACTUATION Magnetic
ACTUAL ACTUATION Magnetic
MALFUNCTION Yes [ ] No [X]
REMARK
Miss, unknown reason.




OWN SHIP DATA (AT FIRING)

DEPTH Surfaced
COURSE 065
SPEED 2 knots
ANGLE 0 down
SEA STATE Choppy



-----------------------------------------------------------------------------------------------------


TORPEDO ATTACK NO.3

DATE 1942/08/19
TIME 0245
LAT 3-04N
LONG 172-41E

TYPE OF ATTACK
Surface-Night


Ships Sunk
Shimushu Class Minesweeper-Escort Vessel
860 tons 3-04N 172-41E
0316 (local)

Verification:

Observed torpedo hit, followed by massive explosion and numerous
secondary explosions. Visually observed vessel sink at 0316 hours.

Ships Probably Sunk
None

Ships Damaged
None

Ships Probably Damaged
None


TARGET DATA (AT FIRING)

NAME N/A
CLASS Shimushu
TYPE Minesweeper-Escort Vessel
COURSE 125
SPEED 0
BEARING 0
TRUE BEARING 359
RANGE 3200 yards
AOB 88 S
REMARK
Vessel was stationary, likely listening, believing NAUTILUS had submerged.


TORPEDO ATTACK NO. 3 TORPEDO FIRE CONTROL DATA (at firing)

TUBE NO. 1
TYPE MK 14
SERIAL NO. 24167
EXPLODER MK 6
SERIAL NO. 1411
GYRO 0
COURSE 000
TRACK 89 S
METHOD Single bearing
POA MOT
SPREAD 0
FIRING INTERVAL 5 SECS
DEPTH 3.5 feet
POWER Low [ ] High [X]
HIT Yes [ ] No [X]
ACTUATION Magnetic
ACTUAL ACTUATION Magnetic
MALFUNCTION Yes [] No [X]
REMARK
Missed, cause unknown.


TUBE NO. 2
TYPE MK 14
SERIAL NO. 2419
EXPLODER MK 6
SERIAL NO. 1416
GYRO 0
COURSE 000
TRACK 89 S
METHOD Single bearing
POA MOT
SPREAD 0
FIRING INTERVAL 5 SECS
DEPTH 3.5 feet
POWER Low [ ] High [X]
HIT Yes [X] No [ ]
ACTUATION Magnetic
ACTUAL ACTUATION Magnetic-Contact
MALFUNCTION Yes [ ] No [X]
REMARK
Hit, target sunk.


TUBE NO. 3
TYPE MK 14
SERIAL NO. 24196
EXPLODER MK 6
SERIAL NO. 1417
GYRO 0
COURSE 000
TRACK 89 S
METHOD Single bearing
POA MOT
SPREAD 0
FIRING INTERVAL 5 SECS
DEPTH 3.5 feet
POWER Low [ ] High [X]
HIT Yes [ ] No []
ACTUATION Magnetic
ACTUAL ACTUATION Magnetic
MALFUNCTION Yes [] No [X]
REMARK
Missed, cause unknown.



OWN SHIP DATA (AT FIRING)

DEPTH Surfaced
COURSE 030
SPEED 2 knots
ANGLE 0 down
SEA STATE choppy


----------------------------------------------------------------

TORPEDO ATTACK NO.4

DATE 1942/08/19
TIME 0854
LAT 3-25N
LONG 172-34E

TYPE OF ATTACK
Submerged-Periscope-Day


Ships Sunk

AK JOKUJA MARU 7390 tons
3-24N 172-34E
0905 (local)

Verification:

Observed two torpedoes hit target, explosions and fire. Explosions and
sounds of ship breaking up, sinking audible through hull and on sound gear.


Ships Probably Sunk
None

Ships Damaged
None

Ships Probably Damaged
None


TARGET DATA (AT FIRING)

NAME JOKUJA MARU
CLASS AK
TYPE N/A
COURSE 205
SPEED 9 KTS
BEARING 348
TRUE BEARING 111
RANGE 1414 yards
AOB 86 S
REMARK
Trucks lashed to deck. Large shipping crates visible. 3 or 4 inch guns fore and aft.


TORPEDO ATTACK NO. 4 TORPEDO FIRE CONTROL DATA (AT FIRING)

TUBE NO. 1
TYPE MK 14
SERIAL NO. 24180
EXPLODER MK 6
SERIAL NO. 1500
GYRO 0
COURSE 122
TRACK 97 S
METHOD Single bearing
POA MOT
SPREAD 0
FIRING INTERVAL 5 secs.
DEPTH 5 feet
POWER Low [ ] High [X]
HIT Yes [ ] No [X]
ACTUATION Magnetic
ACTUAL ACTUATION Magnetic
MALFUNCTION Yes [X] No [ ]
REMARK
Ran deeper than set. Detonated on other side of target, about fifty yards


TUBE NO. 2
TYPE MK 14
SERIAL NO. 24181
EXPLODER MK 6
SERIAL NO. 1501
GYRO 0
COURSE 122
TRACK 97 S
METHOD Single bearing
POA MOT
SPREAD 0
FIRING INTERVAL 5 secs.
DEPTH 5 feet
POWER Low [ ] High [X]
HIT Yes [X] No [ ]
ACTUATION Magnetic
ACTUAL ACTUATION Magnetic-Contact
MALFUNCTION Yes [ ] No [X]
REMARK
Hit under stack, large explosion.


TUBE NO. 3
TYPE MK 14
SERIAL NO. 24182
EXPLODER MK 6
SERIAL NO. 1502
GYRO 0
COURSE 122
TRACK 97 S
METHOD Single bearing
POA MOT
SPREAD 1.5 degrees-starboard
FIRING INTERVAL 5 secs.
DEPTH 5 feet
POWER Low [ ] High [X]
HIT Yes [X] No [ ]
ACTUATION Magnetic
ACTUAL ACTUATION Magnetic-Contact
MALFUNCTION Yes [ ] No [X]
REMARK
Hit just forward of amidships, behind forward mast.


TUBE NO. 4
TYPE MK 14
SERIAL NO. 24183
EXPLODER MK 6
SERIAL NO. 1503
GYRO 0
COURSE 122
TRACK 97 S
METHOD Single bearing
POA MOT
SPREAD 1.5 degrees-port
FIRING INTERVAL 5 secs.
DEPTH 5 feet
POWER Low [ ] High [X]
HIT Yes [X] No [ ]
ACTUATION Magnetic
ACTUAL ACTUATION Magnetic-Contact
MALFUNCTION Yes [X] No []
REMARK
Dud. Observed impact under aft mast, torpedo failed to detonate.



OWN SHIP DATA (AT FIRING)

DEPTH 64 ft
COURSE 122
SPEED 3 knots
ANGLE 2 down
SEA STATE
Choppy





--------------------------------------------------------------------------------------------------------
USS Nautilus SS-168
FOURTH War Patrol
GUN ACTION NO.1

DATE 1942/08/17
TIME 0700-0745
LAT 3-02N
LONG 172-48E
5000-8000 yards South of Butaritari Island, Makin Atoll


ACTION NARRATIVE

In support of the Marine Second Raider Battallion, which landed on Butaritari Island around 0500,
NATUILUS was ordered to conduct a bombardment of the Ukiangong Point area as a distraction at 0700.
Having reconnoitered the island and reasonably sure that not heavy anti ship type batteries were present,
NAUTILUS surfaced 8000 yards off Ukiangong Point and commencing firing at 0700. Most visible facilities were
large fuel storage tanks. A total of four were targeted and all destroyed by six inch gun fire. Tanks were full
as large explosions result with fires that burned, some for forty eight hours. A 1000 ton PC type tug boat moored in the lagoon
was sunk by six inch gunfire as well. After a forty five minute bombardment, cease fire was ordered.
The area in which bombardment was conducted from was repeatedly patrolled by aircraft throughout the day.



ROUNDS EXPENDED

6" 53 Caliber- 101

.50 Caliber MG- 0

HITS-

6' 53 Caliber- 61

.50 Caliber MG - 0


TARGET DATA (at firing)

Target No.1

Large Fuel-Oil Storage Tank
Destroyed by gunfire


TARGET No. 2

Large Fuel-Oil Storage Tank
Destroyed by gunfire


TARGET No. 3

Large Fuel-Oil Storage Tank
Destroyed by gunfire

TARGET No. 4

Large Fuel-Oil Storage Tank
Destroyed by gunfire


TARGET No. 5

NAME NA
CLASS Tugboat
TYPE Tug/PC
TONS 1000
COURSE NA
SPEED 0
BEARING 045
RANGE 5500 yards
REMARK
Moored in lagoon. 3 inch guns observed fore and aft. Did not fire on NAUTILUS.


Ships Probably Sunk
None


Ships Damaged
None


Ships Probably Damaged
None


Own Ship Data (in relation to target at firing)

COURSE 055
SPEED 5-15 knots
AOB 120-60 P



SPECIAL MISSION

In according with operational orders, NAUTILUS transported the 90 men of "B" Company, Second Raider Battalion
to the Makin Island area and successfully deployed the men of "B" Company via their LCRL boats at 0326 hours 17 August.

The surf kicked up with strong tides just after the boats were deployed and around 0500 received reports
of difficulties from the CO, LTCOL Carlson via radio.

Per orders received, conducted a bombardment of Ukiangong Point, beginning precisely at 0700 17 August and ended at 0745. Four large fuel tanks were
destroyed in addition to other facilities, as well as 1000 ton tugboat/CP type sunk in the lagoon.

Enemy response came in form of heavy air cover. NAUTILUS suffered minor damage from bombs dropped by one of this planes.

Difficulties with boats and heavy surface prevented pick up of 72 of the Marines as scheduled on evening of 17 August. Heavy air cover
prevented full extraction during daylight hours of 18 August. A prolonged depth charge attack followed by unexpected engagement with escort vessel
preventing the pick up of nearby LCRL boats, led to final man not being extracted from his boat until 0600 on 19 August.


Special Mission completed as ordered.



NAVIGATIONAL AIDES

Butartari Island and Ukiangong Point served as excellent navigational aides when in the Makin Atoll
area. Otherwise, no aides were encountered.


TIDAL INFORMATION

Tidal activity was normal for the area, but proved a obstacle at times when deploying and recovering
the LCRL boats utilized by the Raiders.



ANTI-SUBMARINE COUNTERMEAURES AND EVASION

ASW tactics encountered by enemy escorts and destroyers were about the norm for the Japanese.
Depth charges, while causing damage, often seem to be set too shallow.

Aircraft dispatched to hunt for submarines after the morning bombard on 17 August proved a difficult
foe to counter.

Evasion tactics were standard. Consistent course, speed, and depth, changes, combined with utilization of thermal
layers and silent running. Motors were kept below 100 RPM.


MAJOR DAMAGE AND DEFECTS

Defects

None


Damage

Moderate damage was caused in the depth charge attacks. All damage was repaired at sea, unless otherwise
noted

1. No.3 Electric Motor-Disabled, knocked off mounting. Unable to repair at sea.

2. Busted sea valves and piping in engine rooms, led to flooding of bilges and nine inches of water
in compartment.

3. Stern Batteries

4. Hydraulic Pumps

5. Trim Pump

6. Stern Dive Planes Transmission

7. Bow Dive Planes Transmission

8. Piping leaks-All compartments

9. High Pressure Air line leaks-All compartments

10. Electrical grounds in Engine room, conning tower, control room.

11. Light bulbs and glass fixtures in all compartments.

12. No.5 and No.6 torpedo tubes


SOUND CONDITIONS AND SOUND GEAR

Sound Conditions were decent in most of the area.

Sound gear performance was optimal.



THERMAL LAYERS

1942/08/18
2-59 N 172-34E
220 feet



MINES

No mines were encountered on this patrol.



RADAR

SD Radar function was excellent on this patrol. Typical detection range was 8-9 NM.


RADIO

Radio function, key to success on this mission, did not disappoint, as performance was
excellent.


PERSONNEL

Crew performance was excellent on this special mission. Accommodations to make room for
90 Marine Raiders caused for conditions more cramped than usual, but the crew made do
and were excellent hosts/

Three men advanced in rating on this patrol and three others achieved qualification.


HEALTH AND HABITABILITY

Health of the crew is excellent. The boat was more crowded than usual, but a level of comfort was maintained
with morale remaining satisfactory. The success of sinking ships, bombarding enemy territory, as well as
successful completion of special assignment certainly helped in the morale department.



MILES STEAMED-FUEL USED

Pearl to Makin
2227 miles
40550 gallons

In Area
1000 miles
15455 gallons


Makin to Pearl
2250 miles
51255 gallons



DURATION

Pearl to Makin
8

In Area
3

Makin to Pearl
8


FACTORS IN ENDURANCE

TORPEDOES 2
FUEL 51255 gallons
Provisions 25 days
Crew Indefinite

Reason for termination of patrol: Per operation orders, return to Pearl Harbor upon completion
of special assignment, unless otherwise ordered.


REMARKS

A busy, challenging, special patrol. Submarines, especially those of the design of NAUTILUS prove excellent
vessels for operations such as the one conducted on this patrol. Performance of the crew as well as the
men of the Second Raider Battallion was excellent.

With great pride, the first sinking by NAUTILUS under my command occurred on this patrol, albeit it after repeated
torpedo failures. Naturally, a full load of torpedoes was not carried on this patrol due to the space requirements
for passengers and equipment, which means each torpedo had to counter, more than normal. The number one problem
with torpedoes appears to be depth control issues, followed by the prematurely detonations. While a large
merchantman and minesweeper escort were sunk by torpedo, a large, important merchantman escaped due to
faulty torpedoes.

W.H. Brockman Jr.,
LCDR, USN.