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Progress-M1 ((ロシア語:Прогресс-М1), GRAU indices 11F615A55 and 11F615A70), also known as Progress 7K-TGM1, is a Russian spacecraft which is used to resupply space stations. It is a variant of the Progress spacecraft, derived from the Progress-M, but modified to carry more propellant for refuelling the space station instead of other cargoes such as water. A Progress M1 11F615A55 spacecraft could carry of propellant, compared to the that a Progress-M of the same generation could carry. The Progress-M1 11F615A70 is a modernised variant of the earlier 11F615A55, with digital flight control systems replacing the earlier analogue ones. The older 11F615A55 spacecraft is no longer in use. It made eleven flights, the last of which, Progress M1-11, was deorbited in June 2004. The 11F615A70 is scheduled to make its first flight, Progress M1-01M, in 2011. Of the eleven 11F615A55 spacecraft launched, three flew to Mir, with the remainder being used to resupply the International Space Station. Ten of the spacecraft were used for traditional resupply missions, whilst the eleventh, Progress M1-5, was used instead to deorbit the Mir space station. Progress-M1 spacecraft are launched by Soyuz rockets. Eight of the 11F615A55 spacecraft were launched by the Soyuz-U variant, whilst the remaining three; the sixth, seventh and ninth spacecraft, flew on the Soyuz-FG. 11F615A70 launches are expected to use the Soyuz-2. ==See also== *Automated Transfer Vehicle *Cygnus spacecraft *SpaceX Dragon 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「Progress-M1」の詳細全文を読む スポンサード リンク
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