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The Ikar was a rocket upper stage designed in Russia in 1999 to be used with the Soyuz 11A511U rocket as Soyuz-Ikar. It was derived from the propulsion module of the Yantar spy satellites. == References == 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「Ikar (rocket stage)」の詳細全文を読む スポンサード リンク
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