Pacific ships

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I-20

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TypeSubmarine (SS)
HullI-20
FateSunk. Type C submarine. Launched a midget submarine off Pearl Harbor and did not enter the harbor. Missing after 31 August 1943. The cause is not settled, and she is not credited to one ship.

Laid down, displacement, length, beam, draft, speed, and complement are not stored for each hull, so this table leaves them out.

A boat of this type, not a photograph of this hull
No photograph of I-20 was found. This is I-16, a Type C submarine of the same class, on trials in 1940. It is not this boat. Public domain, via Wikimedia Commons.

I-20 was a Type C submarine of the Imperial Japanese Navy, known by the designation I-20. On 7 December 1941 she took part in the attack on Pearl Harbor. From a position off Oahu she launched a midget submarine. The launch was made offshore, and I-20 did not enter the harbor.

That launch was her part in the attack. The midget left the parent boat in the waters off Oahu, and I-20 remained outside Pearl Harbor.

She continued in the Imperial Japanese Navy after that December day. After 31 August 1943 she was missing. I-20 is recorded as sunk. The cause of the loss is unsettled, and she is not credited to one ship.

The pictures on this page are the originals.