Castor 4
Gross Mass: 10,534 kg (23,223 lb). Empty Mass: 1,269 kg (2,797 lb). Thrust (vac): 407.211 kN (91,545 lbf). Isp: 261 sec. Burn time: 54 sec. Propellants: Solid. Isp(sl): 228 sec. Diameter: 1.02 m (3.34 ft). Span: 1.02 m (3.34 ft). Length: 9.07 m (29.75 ft). Country: USA. No Engines: 1. Engine: Castor 4. Cost $ : 2.030 million. First Flight: 1975. Last Flight: 1989. No Launched: 342. No Failed: 1.


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