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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 Saenger (spacecraft) ： ウィキペディア英語版 Saenger (spacecraft) Saenger or Sänger was a concept design of a spaceplane. Its first design, Saenger I, was developed between 1961 and 1974 from plans originating from Eugen Sänger at the West German company Junkers.〔Handbuch der Raumfahrt Technik by Hallmann willi, ISBN 3-446-15130-3 Dritte im Weltraum by Herbert Erdmann. schwann verlag, 1969〕 ==Saenger I== The Saenger vehicle utilised a two stage concept similar to that of the space shuttle. The first stage with the second stage attached on top would takeoff horizontally using a runway and climb to an altitude of 30 km using airbreathing ramjet engines. The second stage would then detach and accelerate to orbital speeds and altitudes using its LOX/LH2 rocket engine. The advantage of this approach is that the first stage utilises the advantages of air breathing engines (such as higher specific impulse) until they are no longer viable due to low air pressure and high velocities. The second stage had dimensions of 31 m × 12 m and would have been capable of carrying two astronauts.〔 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「Saenger (spacecraft)」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.