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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 Stealth aircraft ： ウィキペディア英語版 Stealth aircraft Stealth aircraft are designed to avoid detection using a variety of stealth technologies that reduce reflection/emission of radar, infrared,〔 visible light, radio-frequency (RF) spectrum, and audio, collectively known as stealth technology.〔 Development of stealth technology likely began in Germany during World War II, the prototyped Horten Ho 229 powered by twin BMW 003 jet engines being described as the first stealth aircraft.〔 Well-known modern examples of stealth of U.S. aircraft include the United States' F-117 Nighthawk (1981–2008), the B-2 Spirit, the F-22 Raptor,〔 and the F-35 Lightning II.〔 While no aircraft is totally invisible to radar, stealth aircraft make it more difficult for conventional radar to detect or track the aircraft effectively, increasing the odds of an aircraft successfully avoiding detection by enemy radar and/or avoiding being successfully targeted by radar guided weapons. Stealth is the combination of passive low observable (LO) features and active emitters such as Low Probability of Intercept Radars, radios and laser designators. These are usually combined with active measures such as carefully planning all mission maneuvers in order to minimize the aircraft's radar cross section, since common actions such as hard turns or opening bomb bay doors can more than double an otherwise stealthy aircraft's radar return.〔 It is accomplished by using a complex design philosophy to reduce the ability of an opponent's sensors to detect, track, or attack the stealth aircraft.〔 This philosophy also takes into account the heat, sound, and other emissions of the aircraft as these can also be used to locate it. Full-size stealth combat aircraft demonstrators have been flown by the United States (in 1977), Russia (in 2010) and China (in 2011).〔 The U.S. military has adopted three stealth designs, and is preparing to adopt the Lockheed Martin F-35 Lightning II. Most recent fighter designs will claim to have some sort of stealth, low observable, reduced RCS or radar-jamming capability, but there has been no air-to-air combat experience against stealth aircraft.〔 ==Background== 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「Stealth aircraft」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.