FG-02

The FG-02 was a Chinese solid rocket motor burning Polysulfide.[2] It was developed by China Hexi Chemical and Machinery Corporation (also known as the 6th Academy of CASIC) for use in the Long March 1 third stage. It has a total nominal mass of 2,052 kg (4,524 lb), of which 1,806 kg (3,982 lb) is propellant load. It has an average thrust of 118 kN (27,000 lbf) with a specific impulse of 254 seconds burning for 38 seconds, with a total impulse of 4,500 kN (1,000,000 lbf). It used spin stabilization and a timing device to ignite in flight.[1][3][4]

FG-02
Country of originChina
Date1966-1970
First flight1970-04-24
Last flight1971-03-03
DesignerChina Hexi Chemical and Machinery Corporation
ApplicationUpper stage
Associated L/VLong March 1
StatusRetired
Solid-fuel motor
PropellantPolysulfide
Configuration
Chamber1
Performance
Thrust (vac.)118 kN (27,000 lbf)
Isp (vac.)254 s (2.49 km/s)
Total impulse4,500 kN (1,000,000 lbf)
Burn time38s
Propellant capacity1,806 kg (3,982 lb)
Dimensions
Length3.95 m (156 in)
Diameter0.77 m (30 in)
Dry weight246 kg (542 lb)
Used in
Long March 1 third stage.
References
References[1][2]

The Long March 1 is basically a DF-4 with a solid third stage and a fairing. So the FG-02 was developed as the third stage to add to the stack. It was initially tested on two launches aboard T-7A sounding rockets to validate high altitude ignitions. Both successful flights were performed on August 1968. Before going into the launch vehicle, the propellant load was increased from 900 kg (2,000 lb) to 1,806 kg (3,982 lb). It performed just two orbital flights, both from Jiuquan and both successful. The first was on April 24, 1970, to orbit the indigenous satellite, the Dong Fang Hong I. And the second was on March 3, 1971, on the Shijian 1 mission.[3]

See also

References
  1. Norbert Bgügge. "Some Chinese solid fuel aerospace motors". B14643.DE. Archived from the original on 2015-09-26. Retrieved 2015-07-25.
  2. "GF-02". Encyclopedia Astronautica. Retrieved 2015-07-25.
  3. Norbert Bgügge. "Chang Zheng CZ-1 & CZ-1D". B14643.DE. Retrieved 2015-07-25.
  4. Norbert Bgügge. "Propulsion CZ-1 & CZ-1D". B14643.DE. Retrieved 2015-07-25.


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