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German submarine ''U-531'' was a Type IXC/40 U-boat of Nazi Germany's ''Kriegsmarine'' built for service during World War II. She was laid down at Deutsche Werft in Hamburg as yard number 346 on 22 December 1941, launched on 12 August 1942 and commissioned on 28 October with ''Oberleutnant zur See'' Herbert Neckel in command. Her service began with training as part of the 4th U-boat Flotilla; she then joined the 2nd flotilla for operations on 1 April 1943. ==Design== German Type IXC/40 submariness were slightly larger than the original Type IXCs. ''U-531'' had a displacement of when at the surface and while submerged. The U-boat 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 MAN M 9 V 40/46 supercharged four-stroke, nine-cylinder diesel engines producing a total of for use while surfaced, two Siemens-Schuckert 2 GU 345/34 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, it could operate for at ; when surfaced, she could travel at . ''U-531'' was fitted with six torpedo tubes (four fitted at the bow and two at the stern), 22 torpedoes, one , 180 rounds, and a as well as a anti-aircraft gun. The boat had a complement of forty-eight. 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-531」の詳細全文を読む スポンサード リンク
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