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USS ''PC-457'' was a submarine chaser of the United States Navy before World War II. ''PC-457'' was built in 1939 as the yacht ''Trouper'' by Robert Jacob and Sons shipyard of City Island, New York for C. A. Tilt of Chicago, IL, the president of the Diamond T Motor Company. She was acquired by the US Navy in 1940 due to the Navy's rapidly rising demand for patrol craft as the war in Europe expanded. She was commissioned in 1941. On 14 August 1941 she was sunk in a collision near San Juan, Puerto Rico with freighter (). (【引用サイトリンク】title=Official Chronology of the US Navy in WWII ) ==References == * * (【引用サイトリンク】title=Official Chronology of the US Navy in WWII ) 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 PC-457」の詳細全文を読む スポンサード リンク
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