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German submarine ''U-559'' was a Type VIIC U-boat built for Nazi Germany's ''Kriegsmarine'' for service during World War II. Laid down on 1 February 1940 at the Blohm & Voss shipyards in Hamburg as "Baunummer 535" ("Yard number 535"), she was launched on 8 January 1941 and commissioned on 27 February under ''Kapitänleutnant'' Hans Heidtmann. She began her service career with the 1st U-boat Flotilla, undergoing training before being declared operational on 1 June 1941. She moved to the 29th U-boat Flotilla on 15 April 1942. She sank five ships but is perhaps best remembered for an incident during her sinking in the Mediterranean Sea in 1942, in which British sailors seized cryptographic material from ''U-559''. This material was extremely valuable in breaking the U-boat Enigma cipher. ==Design== German Type VIIC submarines were preceded by the shorter Type VIIB submarines. ''U-559'' had a displacement of when at the surface and while submerged. She had a total length of , a pressure hull length of , a beam of , a height of , and a draught of . The submarine was powered by two Germaniawerft F46 four-stroke, six-cylinder supercharged diesel engines producing a total of for use while surfaced, two Brown, Boveri & Cie GG UB 720/8 double-acting electric motors producing a total of for use while submerged. She had two shafts and two propellers. The boat was capable of operating at depths of up to . The submarine had a maximum surface speed of and a maximum submerged speed of . When submerged, the boat could operate for at ; when surfaced, she could travel at . ''U-559'' was fitted with five torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes, one , 220 rounds, and an anti-aircraft gun. The boat had a complement of between forty-four and sixty. 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「German submarine U-559」の詳細全文を読む スポンサード リンク
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