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USS Bonita (SS-165)
USS ''Bonita'' (SF-6/SS-165), a ''Barracuda''-class submarine and one of the "V-boats," was the third ship of the United States Navy to be named for the bonito. Her keel was laid down by the Portsmouth Navy Yard. She was launched on 9 June 1925 as ''V-3'' (SF-6), sponsored by Mrs. L.R. DeSteiguer, wife of Rear Admiral DeSteiguer, and commissioned on 22 May 1926, Lieutenant Commander Charles A. Lockwood, Jr. in command. Like her sisters, ''Bonita'' was designed to meet the fleet submarine requirement of surface speed for operating with contemporary battleships.
==Engineering==
''V-3'' was completed with two Busch-Sulzer direct-drive 6-cylinder 2-cycle main diesel engines of each,〔〔 along with two Busch-Sulzer auxiliary diesel engines of each, driving electrical generators. The latter were primarily for charging batteries, but to reach maximum surfaced speed, they could augment the mechanically coupled main-propulsion engines by driving the 1,200 hp (890 kW) electric motors in parallel via an electric transmission. Although it wasn't until about 1939 that its problems were solved, electric transmission in a pure diesel-electric arrangement became the propulsion system for the successful fleet submarines of World War II, the ''Tambor''-class through the ''Tench''-class. Prior to recommissioning in 1940, the auxiliary diesels were replaced with two BuEng Maschinenfabrik Augsburg Nürnberg AG (MAN-designed) 6-cylinder 4-cycle diesel engines of each.〔〔 In 1942-43 ''Bonita'' was converted to a cargo submarine, with the main engines removed to provide cargo space, significantly reducing her speed on the remaining auxiliary diesels.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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