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German submarine ''U-511'' was a Type IXC U-boat of Nazi Germany's ''Kriegsmarine'' during World War II. The submarine was laid down on 21 February 1941 at the Deutsche Werft yard in Hamburg as yard number 307, launched on 22 September 1941 and commissioned on 8 December 1941 under the command of ''Kapitänleutnant'' Friedrich Steinhoff.〔 After training with the 4th U-boat Flotilla, from May 1942, ''U-511'' was used for testing the possibility of launching ''Wurfkörper 42'' artillery rockets from U-boats. In cooperation with the commanding officer's brother Ernst Steinhoff of the Peenemünde Army Research Center, a rack of six rockets were mounted on deck, and were successfully launched while on the surface and while submerged up to a depth of . However, the rockets were not particularly accurate and the racks on the deck had a negative effect on the U-boat's underwater handling and performance, so the project was abandoned.〔 The U-boat was attached to the 10th U-boat Flotilla for front-line service on 1 September 1943. In that role she carried out four war patrols, two commanded by ''Kptlt.'' Steinhoff, and two by ''Kptlt.'' Fritz Schneewind, sinking five ships totalling and damaging one of .〔 The U-boat was transferred to Japan on 16 September 1943 and served in the Imperial Japanese Navy as submarine ''RO-500'' until August 1945 when she surrendered to the Allies.〔 ==Design== German Type IXC submariness were slightly larger than the original Type IXBs. ''U-511'' 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-511'' 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-511」の詳細全文を読む スポンサード リンク
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