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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 Malta-class aircraft carrier ： ウィキペディア英語版 Malta-class aircraft carrier The ''Malta''-class aircraft carrier was a British large aircraft carrier design of World War II. Four ships were ordered in 1943 for the Royal Navy, but changing tactical concepts, based on American experience in the Pacific War, caused repeated changes to the design, which was not completed before the end of the war. All four ships were cancelled in 1945 before they were laid down. ==Background == In July 1942 the Royal Navy formed the Future Building Committee, chaired by the Deputy First Sea Lord, to examine the fleet's requirements for the rest of the war. Tasked with anticipating the Navy's readiness and requirements for January 1944, the committee realised that a major expansion of naval aviation was required, which meant that more aircraft carriers would be needed. Many factors combined to drive up the size of these new carriers, notably the increasing size and speed of aircraft and the desire to increase the numbers of aircraft aboard fleet carriers. Another important consideration was the change in carrier tactics from the earlier doctrine of more attacks with smaller numbers of aircraft to the use of large, single airstrikes.〔Friedman, pp. 268, 270–72〕 Sir Stanley V. Goodall, Director of Naval Construction (DNC), proposed a variety of designs, both open and closed hangar. On 8 October 1943, the Board of Admiralty selected a closed-hangar design with an armoured flight deck and five propeller shafts. Reports of American operations in the Pacific convinced the Board to reconsider hangar design; American experience had shown that the ability to fly off all of a carrier's aircraft in a single airstrike was vital. That required a well-ventilated, open-hangar design, which would reduce the time required to launch the aircraft by allowing them to begin the typical 15-minute engine warm-up while still in the hangar. On 15 May 1944, the Board reversed itself and ordered the DNC to produce an open-hangar design with deck-edge lifts. An unarmoured flight deck was agreed upon in June by the Controller of the Navy and the Fifth Sea Lord. The new design, long at the waterline and known as Design X, was submitted to the Board on 10 August, although it was not approved. In October, concerns arose over the size of Design X in that it might have problems manoeuvering in constricted harbours, and the DNC was asked for two smaller designs: X1, shorter, and Y, shorter. Design Y was too short for efficient operations with the larger aircraft the committee anticipated, and the First Sea Lord selected X1. It was submitted to the Board on 12 April 1945 and fully worked out in anticipation of approval that never came. The Board minutes for 31 August noted that further consideration of the design had been postponed.〔Friedman, pp. 272, 291–92, 294–95〕 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「Malta-class aircraft carrier」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.