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SM ''UB-9'' was a German Type UB I submarine or U-boat in the German Imperial Navy ((ドイツ語:Kaiserliche Marine)) during World War I. ''UB-9'' was ordered in October 1914 and was laid down at the AG Weser shipyard in Bremen in November. ''UB-9'' was a little under in length and displaced between , depending on whether surfaced or submerged. She carried two torpedoes for her two bow torpedo tubes and was also armed with a deck-mounted machine gun. She was launched and commissioned as SM ''UB-9'' in February 1915.〔"SM" stands for "Seiner Majestät" ((英語:His Majesty's)) and combined with the ''U'' for ''Unterseeboot'' would be translated as ''His Majesty's Submarine''.〕 ''UB-9''s commanding officer at commissioning only remained in charge of the ship for a week. Sources do not report any more commanding officers assigned through the end of the war, so it's not clear if the submarine remained in commission. ''UB-9'' was reported in use as a training vessel at Kiel in September 1915. The U-boat made no war patrols and sank no ships during the war, which may indicate that the vessel remained in a training role. At the end of the war, ''UB-9'' was deemed unseaworthy and unable to surrender at Harwich with the rest of Germany's U-boat fleet. She remained in Germany where she was broken up by Dräger at Lübeck in 1919. == Design and construction == After the German Army's rapid advance along the North Sea coast in the earliest stages of World War I, the German Imperial Navy found itself without suitable submarines that could be operated in the narrow and shallow seas off Flanders.〔Miller, pp. 46–47.〕〔Karau, p. 48.〕 Project 34, a design effort begun in mid-August 1914,〔 produced the Type UB I design: a small submarine that could be shipped by rail to a port of operations and quickly assembled. Constrained by railroad size limitations, the UB I design called for a boat about long and displacing about with two torpedo tubes.〔〔A further refinement of the design—replacing the torpedo tubes with mine chutes but changing little else—evolved into the Type UC I coastal minelaying submarine. See: Miller, p. 458.〕 ''UB-9'' was the first of the initial allotment of seven submarines—numbered up to —ordered on 15 October from AG Weser of Bremen, just shy of two months after planning for the class began.〔〔Williamson, p. 12.〕 ''UB-9'' was laid down by Weser in Bremen on 6 November.〔 As built, ''UB-9'' was long, abeam, and had a draft of . She had a single Körting 4-cylinder diesel engine for surface travel, and a single Siemens-Schuckert electric motor for underwater travel, both attached to a single propeller shaft. Her top speeds were , surfaced, and , submerged.〔 At more moderate speeds, she could sail up to on the surface before refueling, and up to submerged before recharging her batteries. Like all boats of the class, ''UB-9'' was rated to a diving depth of , and could completely submerge in 33 seconds. ''UB-9'' was armed with two torpedoes in two bow torpedo tubes. She was also outfitted for a single machine gun on deck. ''UB-9''s standard complement consisted of one officer and thirteen enlisted men.〔Karau, p. 49.〕 After work on ''UB-9'' was complete at the Weser yard, she was launched on 6 February 1915.〔 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 UB-9」の詳細全文を読む スポンサード リンク
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