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:''For the pre-1914 submarines also known as the Som class in Russia, see Som-class submarine.'' The Tango class was the NATO reporting name of a class of diesel-electric submarines that were built in the Soviet Union to replace the s assigned to the Black Sea and Northern Fleets. The Soviet designation of this class was Project 641B and it was also known as the Som (Catfish) class. The first of the class was completed in 1972 at Gorky. A total of 18 were built in two slightly different versions. The later type was several metres longer than the first, possibly because of the installation of ASW missile equipment. The bow sonar installations appear to be similar to those fitted to Soviet nuclear attack submarines. The propulsion plant was the same as the last subgroup of the Foxtrot class. The Tango class had far more battery capacity, far higher than any previous conventional submarine class in the Soviet Navy; as a result, pressure hull volume increased. This allowed an underwater endurance in excess of a week before snorkeling was required. Coupled with new armament and sensor fit, the Tango class were ideal for ambush operations against Western nuclear submarines at natural chokepoints. Because of its all-hull rubber coating, the sub class was nicknamed "rezinka" () Construction of this class has now stopped. One unit remains in the Black Sea Fleet but it may have been decommissioned since 2010. ==Museum ships== File:Tango class SS.svg|Schematic of the Tango class File:B-307, Togliatti. Russia-1.JPG|''B-307'', Togliatti File:Tango b-396 1.JPG|''B-396'', Moscow File:Hamburg.U434.gesamt.wmt.jpg|''B-515'', Hamburg File:Tango B-396 Torpedo Room 1.JPG|Tango ''B-396'' torpedo room Three 641B-class submarines operate as museum ships: * ''B-307'', fully raised on ground - Togliatti Museum of Technology, Samara, Russia * ''B-396'', afloat in Tushino reservoir - Moscow Navy Museum * , afloat in Baakenhafen in Hamburg - museum in Hamburg The conning towers of stricken ''B-319 and ''B-474'' are on display in Polyarny and Ryazan. 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「Tango-class submarine」の詳細全文を読む スポンサード リンク
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