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Aerojet General X-8
The Aerojet General X-8 was an unguided, spin-stabilized sounding rocket designed to launch a payload to . The X-8 was later spun off into the prolific Aerobee rocket.
==Operational history==
At launch, an thrust Aerojet 2.5KS18,000G solid rocket booster fired for 2.5 seconds.〔Miller, Jay, The X-Planes, 1988, Arlington, Texas: Aerofax,Inc., ISBN 0-517-56749-0, page 80〕 After booster jettison, a thrust XASR-2 liquid fuel rocket burned for up to 40 seconds (depending on desired apogee).〔〔(【引用サイトリンク】title=Aerojet General RM-84/PWN-2 Aerobee-Hi(and earlier Aerobee variants) )〕 The spent rocket then fell back in a ballistic arc, the payload returning to Earth via parachute. The baseline X-8 measured in length and measured across the fins. A X-8A reached a maximum altitude of Another reached a speed of Mach six.〔 The payloads of the X8s varied, averaging about 150 lbs.〔 There were 30 X-8s, 30 X-8As, 1 X-8B, 2 X8-Cs and 3 X-8Ds delivered to the Air Force.〔 The X-8As used a thrust AJ 10-25 engine.〔 The X-8B used a thrust XASR-2 engine.〔 The X-8Cs had thrust AJ 10-25s.〔 The three X-8D with thrust AJ 10-25, apparently were never flown.〔
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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