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German submarine ''U-402'' was a Type VIIC U-boat built for Nazi Germany's ''Kriegsmarine'' for service during World War II. She was laid down at the Danziger Werft in the city of the same name on 22 April 1940 as yard number 103, launched on 28 December 1940 and was commissioned on 21 May 1941, with ''Kapitänleutnant'' Siegfried Freiherr von Forstner in command. The boat commenced her career with the 3rd U-boat Flotilla on 21 May 1941 carrying-out training before moving on to operations on 1 October 1941. ''U-402'' carried out eight combat patrols, sinking 14 merchantmen and one warship for a total of over during the Second World War. She also damaged three other ships. The submarine was a member of twelve wolfpacks. For his numerous successes, von Forstner received the Knight's Cross. ==Design== German Type VIIC submarines were preceded by the shorter Type VIIB submarines. ''U-402'' 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 Siemens-Schuckert GU 343/38–8 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-402'' 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-402」の詳細全文を読む スポンサード リンク
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