(Type KD6 submarine - colorized photo by Irootoko Jr)
IJN Submarine I-175: Tabular Record of
© 2001-2010 Bob Hackett & Sander Kingsepp
17 December 1941:
18 December 1938:
I-75 is completed at Mitsubishi's Kobe Yard,
commissioned in the IJN and based in the Kure Naval District.
November 1941: Operation "Z":
I-75 is in Vice Admiral Shimizu
Mitsumi's (former CO of ISE) Advance Expeditionary Force (Sixth Fleet) with Rear
Admiral (later Vice Admiral) Miwa Shigeyoshi's )former CO of KINU) SubRon 3 in
Capt Minaguchi Hyoei's SubDiv 11 with I-74. LtCdr (later Cdr) Inoue Noriki
(later KIA as CO of I-31) is the Commanding Officer.
Admiral Shimizu convenes a meeting of all his commanders aboard his
flagship, light cruiser KATORI. LtCdr Inoue and the other commanders are
briefed on the planned attack on Pearl Harbor.
11 November 1941:
I-75 is assigned to the Sixth Fleet in SubRon
3's SubDiv 11. Departs Saeki with I-74.
20 November 1941:
Arrives at Kwajalein.
23 November 1941:
Departs Kwajalein for the Hawaiian Islands.
2 December 1941:
The coded signal "Niitakayama nobore (Climb Mt.
Niitaka) 1208" is received from the Combined Fleet. It signifies that
hostilities will commence on 8 December (Japan time).
7 December 1941: The Attack on Pearl Harbor:
SubRon 3 is deployed
south of Oahu, Hawaii. Its mission is to reconnoiter and attack any ships that
try to sortie from Pearl Harbor. I-75 is assigned to patrol from 25 to 50
miles south of Oahu with I-8, I-68, I-69, I-70, I-71, I-72, I-73 and I-74.
15 December 1941:
I-75 bombards Kahului, Maui. I-75 fires 16 shells from her 120mm/45 deck gun at the town.
180 miles south of Hawaii. I-75 torpedoes and
sinks 3,252-ton Amercian merchant MANINI at 17-46N, 157-03W.
24 December 1941:
31 December 1941:
Returns to Kwajalein.
12 January 1942:
Departs Kwajalein with I-74 for the Aleutians,
passes near Midway.
19 February 1942:
Arrives at Yokosuka. LtCdr Uno Kameo (later KIA as
CO of I-52) assumes command. LtCdr Inoue is reassigned as the Equipping Officer
and later as CO of I-31 that is under construction at the Yokosuka Dock Yard.
16 March 1942:
Vice Admiral, the Marquis, Komatsu Teruhisa (former CO
of CA NACHI) assumes command of the Sixth Fleet's Advance Expeditionary Force
15 April 1942:
Departs Kure on her second war patrol to form a patrol
line with I-74.
10 May 1942:
Arrives at Kwajalein. I-75 is in Rear Admiral Miwa's
SubRon 3: I-68, I-69, I-71, I-74 and I-75.
20 May 1942: Operation "K-2" - The Second Raid on Pearl Harbor:
I-75 is renumbered I-175. She departs Kwajalein on her third war patrol to
patrol SW of Oahu and to provide the weather reports prior to the air raid.
20 June 1942:
Returns to Kwajalein.
8 July 1942:
Departs Kwajalein on her fourth war to operate off the
eastern coast of Australia between Sydney and 35 degrees S
23 July 1942:
20 miles off Newcastle. I-175 torpedoes and damages
the stern of 3,279-ton Australian merchant ALLARA bound with a cargo of
sugar from Cairns, Queensland to Sydney. The ship receives one hit and settles
at the stern; she is abandoned, but does not sink. Later, ALLARA is
reboarded and towed to Newcastle.
24 July 1942:
Near Sydney. I-175 torpedoes and damages
3,345-ton Australian merchant MURADA.
26 July 1942:
I-175 is depth-charged by HMAS CAIRNS and retires
28 July 1942:
NE of Sydney. I-175 torpedoes and sinks
2,795-ton French merchant CAGOU, carrying nickel ore.
3 August 1942:
Off Moruya, New South Wales. I-175 shells and
damages 233-ton Australian trawler DUREENBEE. The crew abandons the sinking
7 August 1942: American Operation "Watchtower" - The Invasion of
Guadalcanal, British Solomon Islands:
Rear Admiral (later Admiral) Richmond
K. Turner's Amphibious Task Force 62, covered by Vice Admiral (later Admiral)
Frank J. Fletcher's Task Force 61 and Rear Admiral (later Admiral) John S.
McCain's Task Force 63's land-based aircraft, lands Maj Gen (later
Gen/Commandant) Alexander A. Vandegrift's 1st Marine Division on Guadalcanal
opening a seven-month campaign to take the island.
12 August 1942:
I-175 is attacked and damaged by Douglas SBD-3
"Dauntless" dive-bombers from USS ENTERPRISE (CV-6). She has to make for
Rabaul for emergency repairs.
17 August 1942:
Arrives at Rabaul.
22 August 1942:
Departs Rabaul for the Solomons on her fifth war
18 September 1942:
Truk. I-175 is in Subron 3 with I-8, I-168,
I-169, I-171, I-172 and I-174.
21 September 1942:
Arrives at Truk.
16 October 1942:
Departs Truk for the Solomons on her sixth war
patrol with I-174 to form a patrol line. Later, they are diverted to an area
NE of San Cristobal to intercept an American convoy with I-172 and
I-175 patrols off Guadalcanal.
15 November 1942:
Cdr Tabata Naoshi (former CO of I-7) assumes command. LtCdr Uno is later reassigned as the Equipping
Officer, and then CO of I-52 under construction at the Kure Navy Yard.
19 November 1942:
Returns to Truk. She is assigned to Group "B" with
I-9, I-15, I-21, I-24 and I-174.
20 November 1942:
At Truk. I-175 is damaged in a collision with
16,764-ton oiler NISSHIN MARU and is run aground.
27 November 1942:
Departs Truk for Kure.
27 November 1942:
Arrives at Kure.
5 December 1942:
Transferred to Yokosuka for repairs.
1 January 1943:
1-175 is in SubRon 3's SubDiv 11 with 1-174
15 March 1943:
1-175 is reassigned to SubDiv 12.
11 May 1943: American Operation "Landcrab" - The Invasion of Attu,
Rear Admiral (later Admiral) Thomas C. Kinkaid's Task Force 16,
covered by Rear Admiral Francis W. Rockwell's Task Force 51, lands elements of
the Army's 4th and 7th Infantry Divisions under the command of Maj Gen Eugene M.
Landrum at Holtz Bay and Massacre Bay that later capture the island.
17 May 1943:
21 May 1943: Operation "KE" - The Evacuation of Kiska:
General Headquarters decides to evacuate the garrison at Kiska Island,
24 May 1943:
I-175, I-169 and I-171 are directed to the area
200 n. miles S of Kiska to support a planned counter-landing at Kiska.
6 June 1943:
Participates in a supply mission to Kiska.
10 June 1943:
Arrives at Paramushiro, Kuriles.
11 June 1943:
Oiler TEIYO MARU refuels I-175.
13 June 1943:
Departs Paramushiro for Kiska.
17 June 1943:
Arrives at Kiska.
20 June 1943:
Returns to Paramushiro.
21 June 1943:
Vice Admiral (Admiral, posthumously) Takagi Takeo
(former CO of MUTSU) assumes command of the Sixth Fleet (Submarines). Vice
Admiral Komatsu is later appointed President of the Etajima Naval Academy.
24 June 1943:
I-175 departs Paramushiro on her eighth war patrol
to raid enemy communications S of Amchitka together with I-171. No contacts
28 July 1943: Operation KE:
The Japanese complete the evacuation of
10 August 1943:
Arrives at Kure.
19 September 1943:
Departs Kure for Truk.
25 September 1943:
Arrives at Truk.
16 October 1943:
I-175 departs Truk for Wake Island on her ninth
20 October 1943:
A report is received from I-36 that a large
convoy sighted S of the Hawaiian Islands is headed west. I-175, I-19, I-35 and
I-169 are ordered to intercept it.
20 November 1943: American Operation "Galvanic" - The Invasion of the
Forces under Vice Admiral (later Admiral) Raymond A. Spruance,
Commander, Central Pacific, invade Tarawa and Makin Islands. The invasion fleet
of 200 ships includes 13 battleships and 11 carriers.
At 0500, the invasion bombardment begins. Rear Admiral H. M. Mullinnix's
CarDiv 24's three escort carriers, USS LISCOME BAY (CVE-56), CORAL SEA
(CVE-57) and CORREGIDOR (CVE-58) are attached to Task Force 52, Northern
On her way back to Truk, I-175 is ordered to "proceed to Makin at
23 November 1943:
Tarawa and Makin are captured.
24 November 1943:
20 miles SW of Butaritari Island. I-175 arrives
off Makin. At dawn, she is spotted byUSS NEW MEXICO (BB-40) with her SG
radar, but dives in time.
With the islands secured, the American forces begin their retirement.
CarDiv 24 and USS NEW MEXICO (BB-40) are steaming at 15 knots. At 0505,
LISCOME BAY's flight crews begin to prepare their planes for dawn launchings.
At 0510, Cdr Tabata fires four torpedoes at the carrier. A lookout spots
a torpedo and shouts a warning, but it is too late. One torpedo hits the carrier
on the starboard side abaft the after engine room. It detonates the bomb storage
magazine and the stern of the carrier disintegrates. NEW MEXICO a mile away,
is showered with metal fragments and body parts.
At 0533, LISCOME BAY lists to starboard and sinks, carrying down
Admiral Mullinix, her Commanding Officer Captain I. D. Wiltsie, 53 officers and
591 men. 272 of her crew are rescued by USS FRANKS (DD-554) and other
Twenty-three of LISCOME BAY's planes are also lost but five Grumman
F4F "Wildcats" manage to land on the new USS LEXINGTON (CV-16) and the new
Cdr Tabata fires two more torpedoes at CORAL SEA (CVE-57)(future
USS ANZIO), but misses.
26 November 1943:
At 1601, USN codebreakers intercept a message from the CO of I-175 that reads: “Action Summary. At 0135 on 25th in position 3-00 N., 172-20 E. sighted 1 carrier, 1 cruiser (may have been DD) and 1 destroyer headed north. At 0210 attacked carrier and hit her with 3 type 95 torpedoes. Pretty certain she was sunk. For next 6 hours underwent depth charge attack by 2 destroyers. 34 depth charges were dropped of which 6 were close ones.”
At 1701, USN codebreakers intercept another message from the CO of I-175 that reads: “Addition to action summary. Today’s depth charging resulted in increased ---- and considerable ----- while submerged. Cannot go deep.”
27 November 1943:
I-175 arrives at Kwajalein to refuel.
28 November 1943:
1 December 1943:
Arrives at Truk.
23 December 1943:
Truk. HEIAN MARU transfers torpedoes to I-175
30 December 1943:
Truk. Transfers torpedoes to I-175.
31 December 1943:
Truk. Transfers distilled water to I-175 and stores to RO-37.
8 January 1944:
Cdr Tabata receives a personal citation from Vice Admiral Takagi.
27 January 1944:
I-175 departs Truk for an area NE of the Marshall
10 January 1944:
Truk. HEIAN MARU transfers stores to I-175
31 January 1944: American Operation "Flintlock" - The Invasion of the
Vice Admiral (later Admiral) Marc A. Mitscher's Task Force
58 lands the 4th Marine Division and the Army's 7 th Infantry Division that
capture the Kwajalein, Roi-Namur and Majuro atolls.
That day, I-175 and RO-39 are ordered to proceed to Wotje in the
Marshall Islands at flank speed.
3 February 1944:
E of Wotje. I-175 reconnoiters Wotje Atoll. At
2203, she is picked up on USS NEW JERSEY's (BB-61) radar at a range of 21
miles. Cdr E. S. Karpe's CHARRETTE (DD-581) is ordered to detach from the
screen and investigate the contact. At 10, 300 yards the contact disappears from
4 February 1944:
CHARRETTE acquires a target on her sonar. At
0003, Cdr Karpe drops a salvo of eight depth charges, but then loses contact.
LtCdr D. S. Crocker's FAIR (DE-35) is ordered to assist CHARRETTE. At 0040,
FAIR attacks with 7.2-inch ahead-thrown Mark 10 "hedgehog" projector
charges. Four explosions are heard and felt that sink the submarine - probably
I-175 - at 06-48N, 168-08E. 
26 March 1944:
Presumed lost with all 100 hands in the Kwajalein
10 July 1944:
Removed from the Navy List.
Mt. Niitaka, located in Formosa (now Taiwan), is then the
highest point in the Japanese Empire.
 Author Kimata Jiro suggests I-175 was sunk by USS NICHOLAS (DD-449)
on 17 Feb '44 NW of the Marshalls, at 10-34N, 173-31E; however, other sources
claim the sub NICHOLAS sank then was I-11.
Special thanks for help in preparing this TROM go to Steve Eckhardt of
Australia and Dr. Higuchi Tatsuhiro of Japan. – Bob Hackett and Sander Kingsepp.
Back to Submarine