- J1 type submarine
J1 type submarines were large cruiser submarines of the
Imperial Japanese Navy .Four boats were built between 1926 and 1929. These boats, based on the KD2 and U-139 designs, were of a junsen, or cruiser, type with an impressive range of 24,000 nm. Elderly by 1941 they were among the first Japanese submarines converted to supply duty.
* "I-1" was present during the attack on
Pearl Harbor and witnessed theDoolittle raid on Tokyo, before patrolling the Aleutians. Her aft 14cm gun was then removed to make room for a 46-footdaihatsu cargo barge and she started shifting supplies in theSolomon Islands . On29 Jan 1943 , theNew Zealand naval trawler s, "Kiwi" and "Moa" rammed and wrecked her in shallow water at Kamimbo Bay,Guadalcanal . Critical codes remained on board and the Japanese command tried unsuccessfully to destroy the boat with submarine and airplane attacks. The US Navy salvaged 200,000 pages of intelligence: code books, charts, manuals, and the ship's log. [ [http://www.combinedfleet.com/type_j1.htm Submarine Type J-1] ]* "I-2" was sunk by the destroyer USS Saufley off New Ireland on 7 April 1944
* "I-3" was ambushed off Guadalcanal by a pair of PT boats on 10 December 1942.
* "I-4" was torpedoed off that same island by USS Seadragon on 20 December 1942.
Notes
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