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  I-402 Japanese Submarine
Sentoku Type
I-400 Class Submarine

3,530 Tons (surfaced)
5,223 Tons (submerged)
8 x torpedo tubes
5.5" deck gun
bridge 25mm AA gun
3 x 3x25mm AA gun
3 x Seiran Float Planes

Ship History
Construction began on October 2, 1943 under heavy security at Sasebo. Completed on July 24, 1945. Attached to the Sixth Fleet, SubDiv 1 along with I-13, I-14, I-400 and I-401. Assigned to Commanding Officer (CO). Commander Nakamura.

Wartime History
On August 11, 1945 around 10:40am at Kure, attacked by P-51D Mustangs that drop bombs nearby scoring several near misses. The submarine's fuel tanks are punctured in two places. Two aboard are wounded. After the official surrender of Japan, I-402 surrenders at Kure.

During October 1945 a crew of U. S. Navy (USN) sailors took the submarine from Kure for Sasebo.

Sinking History
On April 1, 1946 during "Operation Road's End" I-402 and HA-201 are towed to the Goto Islands and used for target practice by USS Everett F. Larson DD-830 and other warships. Afterwards, scuttled 16 nautical miles off Kinai Island in 100 fathoms at roughly Lat 32°  37N, 129°  17E.

During August 2015, the wreckage of I-402 was located underwater by the Japanese Maritime Safety Agency.

Combined Fleet IJN Submarine I-402: Tabular Record of Movement
沈んだ潜水艦空母「伊402」長崎で発見か August 8, 2015
Thanks to Koji Takaki for additional information

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Last Updated
November 16, 2018


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