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Star 27
The Star 27 is a solid rocket motor for the upper stages of rockets.〔(David Darling, et al. - The Complete Book of Spaceflight: From Apollo 1 to Zero Gravity (2003) - Page 317-318 )〕 It burns HTPB fuel with an average erosion rate of 0.0011 inches per second.〔(Sutton, et al. - Rocket Propulsion Elements (2011)- Page 592 )〕〔 When used on the Pegasus air-launch rocket payloads are capable of leaving Earth orbit.〔 A Star 27 was used in the launch of the IBEX spacecraft.〔(IBEX )〕 The spacecraft had a mass of 105 kg by itself and together with its Star 27 motor, 462 kg.〔 The Star 27 helped it get to a higher orbit, beyond Earth's magnetosphere.〔
==See also==
*Star 37
*Star 48
*Inertial Upper Stage
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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