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USS ''Sennet'' (SS-408), a ''Balao''-class submarine, was a ship of the United States Navy named for the sennet, a barracuda. ''Sennet'' was laid down on 8 March 1944 by the Portsmouth Navy Yard in Kittery, Maine; launched on 6 June 1944, sponsored by Mrs. Roscoe W. Downs; and commissioned on 22 August 1944, Commander George E. Porter in command. ''Sennet'' was fitted out by 18 September. She held training exercises and torpedo-tube testing off the coast of Connecticut and Rhode Island until 22 October. The submarine then tested mines and torpedoes for the Mine Warfare Test Station, Solomons Island, Md. On 11 November, ''Sennet'' proceeded to the operations area off Balboa, C. Z., and conducted further training exercises. The submarine departed Balboa on 29 November for Pearl Harbor and arrived there on 16 December 1944. ''Sennets topside armament was increased to two guns, two 40 millimeter guns, and three .50 caliber machine guns before departing Pearl Harbor for her first war patrol on 5 January 1945. == First and second patrols, January–March 1945 == ''Sennet'' patrolled north of the Bonin Islands until 28 January. She made two attacks on a large tanker with three escorts on 21 January but scored no hits. The following week, the submarine sank one 500-ton picket boat and damaged another. ''Sennet'' refitted at Saipan from 31 January to 7 February when she began her second war patrol off southern Honshū, Japan. On 13 February, two 300-ton picket boats were sunk by the combined gunfire of ''Sennet'', , and . Three days later, the submarine attacked an enemy minelayer, the ''Nariu'', with an offset spread of torpedoes from her stern tubes and went deep, to . Two torpedoes were heard to explode. While going deep, ''Sennet'' was rocked hard by two aircraft bombs which exploded beneath her. The submarine surfaced an hour later and saw a large oil slick and approximately 40 Japanese clinging to debris but no trace of the ''Nariu'' which had sunk. 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「USS Sennet (SS-408)」の詳細全文を読む スポンサード リンク
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