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''I-180'' was a (KD7 Type) of the Imperial Japanese Navy during World War II. Ordered in 1939 under the 4th Naval Armaments Supplement Programme, she was laid down at the Yokosuka Naval Arsenal on 17 April 1941 as ''I-80''. Launched on 7 February 1942, she was renumbered ''I-180'' on 20 May 1942, and completed on 15 January 1943. ==Service history== At the end of March 1943, with her sister ships ''I-177'' and ''I-178'', ''I-180'' departed from Truk to patrol off the east coast of Australia. There she torpedoed and sank the Australian merchant ship on 29 April 1943, the Norwegian merchant ship on 5 May 1943, and damaged the Australian merchant vessels ''Ormiston'' and ''Caradale'' on 12 May 1943.〔 In mid-July 1943 ''I-180'' was diverted from her patrol to Kolombangara in the Solomon Islands, arriving in the aftermath of the battle and rescuing 21 survivors from the light cruiser .〔 On 12 October 1943, the Allies launched an air offensive against Rabaul, with 349 aircraft attacking the port and airfields. During the attack ''I-180'' sustained a direct hit which wrecked her superstructure and prevented her from diving. She sailed on the surface back to Sasebo for repairs and was operational again early the next year.〔 In late March 1944 she sailed from Ominato to patrol off the Aleutian Islands. On 19 April she sank the liberty ship ,〔 and almost certainly also sank the Soviet cargo ship ''Pavlin Vinogradov'' on 22 April.〔 (Translated by Alexey Barmin & Dmitriy Tegin)〕 Late on 25 April, she was detected while surfaced by the destroyer escort south-west of Chirikof Island. The submarine promptly crash dived, and over the next three hours ''Gilmore'' laid down three barrages of Mark 10 "Hedgehog" anti-submarine mortar shells without result, and then two patterns of depth charges, before finally seeing a heavy underwater explosion at 01:12 on 26 April〔 at . On 20 May 1944 ''I-180'' was presumed lost, along with all people on board dead, and on 10 July 1944 was removed from the Navy List.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Japanese submarine I-180」の詳細全文を読む スポンサード リンク
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