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The ''Active''-class patrol boat was one of the most useful and long-lasting in United States Coast Guard service, with 16 cutters still in use in the 1960s. The last to be decommissioned from active service was the in 1970; the last in actual service was the , which sank after an accidental collision in 1978. They were designed for trailing the "mother ships" along the outer line of patrol during Prohibition. They were constructed at a cost of $63,173 each. They gained a reputation for durability that was only enhanced by their re-engining in the late 1930s; their original 6-cylinder diesels were replaced by significantly more powerful 8-cylinder units that used the original engine beds and gave the vessels an additional 3 knots. All served in World War II, but two, the and , were lost in a storm in 1944. Ten were refitted as buoy tenders during the war and reverted to patrol work afterward. Originally designated WPC, for patrol craft, they were re-designated WSC, for sub chaser, in February 1942, during World War II. Those remaining in service in May 1966 were re-designated as medium endurance cutters, WMEC.〔(【引用サイトリンク】title= WPC125 Active Cutters (1927) )〕 == References == * (USCGC ''Cahoone'' (1927) ) at US Coast Guard Historian, which cites: * * Cutter History File. USCG Historian's Office, USCG HQ, Washington, D.C. * * Dictionary of American Naval Fighting Ships. Washington, DC: USGPO. * * Robert Scheina. U.S. Coast Guard Cutters & Craft of World War II. Annapolis, MD: Naval Institute Press, 1982. * * Robert Scheina. U.S. Coast Guard Cutters & Craft, 1946–1990. Annapolis, MD: Naval Institute Press, 1990. 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「Active-class patrol boat」の詳細全文を読む スポンサード リンク
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