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Whiskey-class submarines (known in the Soviet Union as Projects 613, 644, and 665) are a class of naval submarines that the Soviet Union built in the early Cold War period. ==Design== The initial design was developed in the early 1940s as a sea-going follow on to the S-class submarine. As a result of war experience and the capture of German technology at the end of the war, the Soviets issued a new design requirement in 1946. The revised design was developed by the Lazurit Design Bureau based in Gorkiy. Like most conventional submarines designed 1946-1960, the design was heavily influenced by the Type XXI U-boat.〔Gardiner, pp. 396-397〕 ===Patrol variants=== Between 1949 and 1958 a total of 236 of an envisaged 340 〔Kuzin, V.P.; Nikolskiy V.I. ''Voyenno-morskoy Flot SSSR'' 1945-1991''. ''Istoricheskoye Morskoye Obshchestvo'', Sankt Peterburg, 1996〕 submarines of this type were commissioned into the Soviet Navy. The vessels were initially designed as coastal patrol submarines. These patrol variants are known in the west as ''Whiskey I, II, III, IV, and V'' and were called ''Project 613'' in the Soviet Union. *Whiskey I − twin 25 mm guns in conning tower *Whiskey II − twin 57mm guns and twin 25mm guns *Whiskey III − guns removed *Whiskey IV − 25 mm guns - fitted with snorkel *Whiskey V − no guns - streamlined conning tower and snorkel 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「Whiskey-class submarine」の詳細全文を読む スポンサード リンク
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