Castor 1 Gross Mass: 3,852 kg (8,492 lb). Empty Mass: 535 kg (1,179 lb). Thrust (vac): 286.001 kN (64,296 lbf). Isp: 247 sec. Burn time: 27 sec. Propellants: Solid. Isp(sl): 232 sec. Diameter: 0.79 m (2.59 ft). Span: 0.79 m (2.59 ft). Length: 5.92 m (19.42 ft). Country: USA. No Engines: 1. Engine: M33-20-4. Cost $ : 1.010 million. First Flight: 1960. Last Flight: 1971. No Launched: 141. No Failed: 2. Used as: Scout X; Delta D. Used on Launch Vehicles: Delta D. Delta G. Scout X-1. Scout X-2. Scout X-3. Scout X-4. Thor Agena B SLV-2A (B). Thor Agena D SLV-2A. Thorad Agena D SLV-2G.                   Contact us with any corrections, additions, or comments. Conditions for use of drawings, pictures, or other materials from this site.. To contact astronauts or cosmonauts. © Mark Wade, 1997 - 2007 except where otherwise noted.

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