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The Falcon 1 was an expendable launch system privately developed and manufactured by SpaceX during 2006–2009.〔 〕 On 28 September 2008, Falcon 1 became the first privately-developed launch vehicle to go into orbit around the Earth.〔 The two-stage-to-orbit rocket used LOX/RP-1 for both stages, the first powered by a single Merlin engine and the second powered by a single Kestrel engine. It was designed by SpaceX from the ground up. The vehicle was launched a total of five times. Falcon 1 achieved orbit on its fourth attempt, in September 2008 with a mass simulator as a payload. On 14 July 2009, Falcon 1 made its final flight and successfully delivered the Malaysian RazakSAT satellite to orbit on SpaceX's first commercial launch (fifth launch overall). Following its fifth launch, the Falcon 1 was retired and succeeded by Falcon 9. SpaceX had announced an enhanced variant, the Falcon 1e,〔 but development was stopped in favor of Falcon 9. == History == 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「Falcon 1」の詳細全文を読む スポンサード リンク
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