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SM ''U-6'' or ''U-VI'' was a ''U-5''-class submarine or U-boat built for and operated by the Austro-Hungarian Navy ((ドイツ語:Kaiserliche und Königliche Kriegsmarine ''or'' K.u.K. Kriegsmarine)) before and during the First World War. The submarine was built as part of a plan to evaluate foreign submarine designs, and was the second of three boats of the class built by Whitehead & Co. of Fiume after a design by Irishman John Philip Holland. ''U-6'' was laid down in February 1908 and launched in June 1909. The double-hulled submarine was just over long and displaced between , depending on whether surfaced or submerged. ''U-6''s design had inadequate ventilation and exhaust from her twin gasoline engines often intoxicated the crew. The boat was commissioned into the Austro-Hungarian Navy in July 1910, and served as a training boat—sometimes making as many as ten cruises a month—through the beginning of the First World War in 1914. The submarine had only one wartime success, which was sinking a French destroyer in March 1916. Later that year, in May, ''U-6'' became entangled in anti-submarine netting deployed as part of the Otranto Barrage. Coming under fire from Royal Navy's drifters running the nets, ''U-6'' was abandoned and sunk. All of her crewmen were rescued and were held in captivity through the end of the war. == Design and construction == ''U-6'' was built as part of a plan by the Austro-Hungarian Navy to competitively evaluate foreign submarine designs from Simon Lake, Germaniawerft, and John Philip Holland.〔Gardiner, p. 340.〕 The Austro-Hungarian Navy authorized the construction of ''U-6'' (and sister ship, ''U-5'') in 1906 by Whitehead & Co. of Fiume.〔 The boat was designed by American John Philip Holland and licensed by Holland and his company, Electric Boat.〔 ''U-6'' was laid down on 21 February 1908 in the United States, partially assembled, and shipped to Whitehead's for final assembly, a process which, author Edwin Sieche notes, "caused a lot of trouble".〔Sieche, p. 21.〕 She was launched at Fiume on 12 June 1909.〔 ''U-6''s design featured a single-hull with a tear-drop shaped body that bore a strong resemblance to modern nuclear submarines.〔 She was long by abeam and had a draft of . She displaced surfaced, and submerged.〔 Her two bow torpedo tubes featured unique, cloverleaf-shaped design hatches that rotated on a central axis,〔 and the boat was designed to carry up to four torpedoes.〔 For surface running, ''U-6'' was outfitted with 2 gasoline engines, but suffered from inadequate ventilation, which resulted in frequent intoxication of the crew;〔 her underwater propulsion was by two electric motors.〔〔''U-6''s gasoline engines were slated to be replaced by diesel engines, but this was not accomplished before the boat sank in May 1916. The two engines ordered for ''U-6'', were instead installed in which had to be lengthened to accommodate them. See: Baumgartner and Sieche, as excerpted (here ) (reprinted and translated into English by Sieche). Retrieved 26 November 2008.〕 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「SM U-6 (Austria-Hungary)」の詳細全文を読む スポンサード リンク
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