The FG-15 (AKA DFH-2 AKM and SpaB-170) was a Chinese spin stabilized apogee kick motor burning HTPB-based composite propellant. It was developed by China Hexi Chemical and Machinery Corporation (also known as the 6th Academy of CASIC) for use in the Dong Fang Hong 2 satellite bus for insertion into GSO orbit.
It has a total nominal mass of , of which is propellant load and its burn out mass is . It has an average thrust of with a specific impulse of 289 seconds burning for 35 seconds, with a total impulse of . This motor introduced a series of innovations for the Chinese solid motor industry: first use of glass fibre wound cases, carbon/carbon nozzle throat insert material, contoured divergent nozzle, and non-destructive test of the motor grain.
The initial version had the manufacturing code FG-15 was associated to the DFH-2 bus and flew twice. The FG-15B was used by the DFH-2A bus and flew five times.
DateCarrier RocketMotorLaunch siteMissionResult1984-01-29 Long March 3 FG-15 Xichang Satellite Launch Center STTW-T1 Failure to ignite1984-04-09 Long March 3 FG-15 Xichang Satellite Launch Center STTW-T2 Success1986-02-02 Long March 3 FG-15B Xichang Satellite Launch Center DFH-2A-T1 Success1988-03-09 Long March 3 FG-15B Xichang Satellite Launch Center ChinaSat-1 (DFH-2A-T2) Success1998-12-24 Long March 3 FG-15B Xichang Satellite Launch Center DFH-2A-T3 Success1990-02-05 Long March 3 FG-15B Xichang Satellite Launch Center DFH-2A-T4 Success1991-12-28 Long March 3 FG-15B Xichang Satellite Launch Center ChinaSat-4 (DFH-2A-T5) Failure to ignite
See also China Hexi Chemical and Machinery Corporation Dong Fang Hong 2 Long March 3
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