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Manufacturer Name: TX-780B. Other Designations: Castor 4B. Designer: Thiokol. Used on stages: Castor 4B. Gross Mass: 11,400 kg. Empty Mass: 1,400 kg. Propellants: Solid Thrust(vac): 43,910 kgf. Thrust(vac): 430.60 kN. Isp: 281 sec. Isp (sea level): 220 sec. Burn time: 64 sec. Diameter: 1.0 m. Length: 9.2 m. Chambers: 1. Chamber Pressure: 32.50 bar. Area Ratio: 12.10. Country: USA. Status: In Production. First Flight: 1982. Last Flight: 1995. Flown: 6. Comments: The Castor 4B, which incorporated thrust vector control in the series for the first time, was developed for ESA's Maxus (first flown in 1991).
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Last update 12 March 2001.
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