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German submarine ''U-71'' was a type VII C submarine of Nazi Germany's ''Kriegsmarine'' during the Second World War. Ordered on 25 January 1939, her keel was laid down as yard number 618 on 21 December that year. She was launched on 31 October 1940 and commissioned on 14 December. She entered the 7th U-boat Flotilla as a training submarine (commissioning until 31 May 1941), then served as a front (operational) boat between 1 June 1941 and 31 May 1943. During that time she carried out ten war patrols, but had to return to port following damage after colliding with in the North Atlantic on 17 April 1943. After that, she moved to the 24th U-boat Flotilla as a training submarine (1 June 1943 – 30 June 1944), then to the 22nd flotilla also as a training boat from 1 July 1944 until 1 February 1945. She was a member of 17 wolfpacks. She sank five ships and was scuttled on 2 May 1945 at Wilhelmshaven, six days before the German surrender. ==Design== German Type VIIC submarines were preceded by the shorter Type VIIB submarines. ''U-71'' 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 AEG GU 460/8–27 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-71'' 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-71 (1940)」の詳細全文を読む スポンサード リンク
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