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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク British G-class submarine ： ウィキペディア英語版 British G-class submarine The Royal Navy's ''G''-class of diesel/electric submarines were launched between 1914 and 1917, and intended for operations in the North Sea and German Bight in World War I against German U-boats. ==Description== The G-class submarines were designed by the Admiralty in response to a rumour that the Germans were building double-hulled submarines for overseas duties. The submarines had a length of overall, a beam of and a mean draft of . They displaced on the surface and submerged. The G-class submarines had a crew of 30 officers and other ranks. They had a partial double hull.〔Gardiner & Gray, p. 90〕 The design showed little improvement in practice, the ships being notoriously slow to dive.〔Arthur, M. (1997). ''Lost voices of the Royal Navy'', pp. 84. Hodder & Stoughton Ltd, London. ISBN 0-340-83814-0〕〔(Yorkshire-divers.com )〕 The ''G''-class had their bows raised during the war to increase buoyancy and improve seakeeping. For surface running, the boats were nearly all powered by two Vickers two-stroke eight-cylinder diesel engines, each driving one propeller shaft; ''G14'' was initially powered by FIAT diesels, but these proved unsuccessful, and were replaced by the standard Vickers engines. It was originally intended to fit more efficient four-stroke MAN and Sulzer diesels to some of the class, but the outbreak of hostilities rendered such plans impossible.〔Friedman, N. (2014). ''Fighting the Great War at sea'', p.258. Seaforth Publishing. ISBN 978-1-84832-189-2〕〔http://www.rnsubs.co.uk/Boats/BoatDB2/index.php?id=2&BoatID=155&flag=class〕 When submerged each propeller was driven by a electric motor. They could reach on the surface and underwater. On the surface, the G class had a range of at .〔 The boats were intended to be armed with one 21-inch (53.3 cm) torpedo tube in the bow and two 18-inch (45 cm) torpedo tubes on the beam. This was revised, however, while they were under construction, the 21-inch tube was moved to the stern and two additional 18-inch tubes were added in the bow. They carried two 21-inch and eight 18-inch torpedoes. The G-class submarines were also armed with a single deck gun.〔 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「British G-class submarine」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.