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__NOTOC__ The ''SC-497'' class submarine chasers were a class of 438 submarine chasers built primarily for the United States Navy from 1941-1944. The ''SC-497''s were based on the experimental submarine chaser, USS ''SC-453''. Production began in 1941 and continued until they were succeeded by the ''SC-1466'' class submarine chaser in 1944. As part of the Lend-Lease program, 142 were transferred for use by allies of the United States.〔 The ''SC-497''s were off-shore patrol and anti-submarine warfare vessels. Ninety-six ''SC-497''s were converted into other types of patrol vessels to meet demands in specific locations. Despite the large number of ''SC-497''s, none are credited with destroying an enemy ship. USS ''SC-669'' is incorrectly credited with sinking the Japanese submarine RO-107 on 29 May 1943. However, RO-107 was still active during the summer of 1943. Sixteen ''SC-497''s were lost and another one was lost after her conversion into a ''PGM-1'' class motor gunboat.〔 During World War II, 142 ''SC-497'' class submarine chasers were lent to allies of the United States as part of the Lend-Lease program enacted by President Franklin D. Roosevelt. Seventy-eight were sent to the Soviet Union, 50 to France, 8 to Brazil, 3 to Norway, and 3 to Mexico.〔 Seventy of the ''SC-497''s were converted into patrol control crafts (SCC), 18 were converted into coastal mine sweepers (AMC), and 8 were converted into patrol gunboats, motor (PGM).〔 ==Survivors== The HNoMS Hitra (ex-USS ''SC-718'') is preserved at the Royal Norwegian Navy Museum. Some remains of HNoMS Hessa (ex-USS ''SC-683'') and HNoMS Vigra (ex-USS ''SC-1061'') can be seen near the coast of Sweden. 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「SC-497-class submarine chaser」の詳細全文を読む スポンサード リンク
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