FG-46

FG-46

Country of origin	China
First flight	1995-11-28
Designer	China Hexi Chemical and Machinery Corporation
Application	Kick engine
Associated L/V	Long March 2E
Status	Out of Production
Solid-fuel motor
Propellant	HTPB
Casing	Fiberglass
Performance
Thrust (vac.)	190 kN (43,000 lbf)
Isp (vac.)	293 s (2.87 km/s)
Total impulse	1.589 MN (357,000 lbf)
Burn time	87s
Dimensions
Length	2,936 mm (115.6 in)
Diameter	1,700 mm (67 in)
Dry weight	529 kg (1,166 lb)
Used in
Long March 2E EPKM
References
References	[1][2][3]

The FG-46 (AKA EPKM and SpaB-170) is a Chinese spin stabilized solid rocket motor burning HTPB.^[4] It was developed by China Hexi Chemical and Machinery Corporation (also known as the 6th Academy of CASIC) for use in the Long March 2E on GTO missions. It first flew as a prototype PKM on July 16, 1990 on the Badr A mission. It had its first commercial mission orbiting the AsiaSat 2 on November 28, 1995 and exactly one month later, on December 28 its second and last mission for EchoStar 1.^[1][4][5]

It has a total nominal mass of 6,001 kg (13,230 lb), of which 5,444 kg (12,002 lb) is propellant load and its burn out mass is 529 kg (1,166 lb). It has an average thrust of 190 kN (43,000 lbf) with a specific impulse of 292 seconds burning for 87 seconds, with a total impulse of 1.589 MN (357,000 lb_f). It is spin stabilized at 40 rpm and the propellant mass can be reduced by up to 350 kg (770 lb) eight months before launch or up to 15 kg (33 lb) on the launch site.^[1]

References

1. "Chapter 2 — General Description to LM-2E". LM-2E User's Manual. Issue 1999 (pdf). CASC. 1999. pp. 2–18. Retrieved 2015-07-08.
2. "EPKM". Encyclopedia Astronautica. Retrieved 2015-07-25.
3. McDowell, Jonathan. "5.6.8: FG-46". Jonathan Space Report. Retrieved 2015-07-25.
4. Norbert Bgügge. "Some Chinese solid fuel aerospace motors". B14643.DE. Retrieved 2015-07-25.
5. Norbert Bgügge. "Propulsion CZ-2E, CZ-2F". B14643.DE. Retrieved 2015-07-25.