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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 Messerschmitt Me 263 ： ウィキペディア英語版 Messerschmitt Me 263 The Messerschmitt Me 263 ''Scholle'' (plaice)〔Christopher, John. ''The Race for Hitler's X-Planes'' (The Mill, Gloucestershire: History Press, 2013), p.142.〕 was a rocket-powered fighter aircraft developed from the Me 163 ''Komet'' towards the end of World War II. Three prototypes were built but never flown under their own power as the rapidly deteriorating military situation in Germany prevented the completion of the test program. ==History== Although the Me 163 had very short endurance, it had originally been even shorter. In the original design, the engine had only one throttle setting, "full on", and burned through its fuel in a few minutes. Not only did this further limit endurance, in flight testing, pilots found the aircraft quickly exhibited compressibility effects as soon as they levelled off from the climb and speeds picked up. This led the ''RLM'' to demand the addition of a throttle, leading to lengthy delays and a dramatic decrease in fuel economy when throttled. This problem was addressed in the slightly updated Me 163C. This featured the same HWK 509B or -C dual chamber rocket engine already trialled on the Me 163B V6 and V18 prototypes; the main upper chamber was tuned for high thrust while the lower ''Marschofen'' combustion chamber was designed for a much lower thrust output (about 400 kgf maximum) for economic cruise. In operation, throttling was accomplished by starting or stopping the main engine, which was about four times as powerful as the smaller one. This change greatly simplified the engine, while also retaining much higher efficiency during cruise. Along with slightly increased fuel tankage, the powered endurance rose to about 12 minutes, a 50% improvement. As the aircraft spent only a short time climbing, this meant the time at combat altitude would be more than doubled. 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「Messerschmitt Me 263」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.