Altair 1A Gross Mass: 390 kg (850 lb). Empty Mass: 181 kg (399 lb). Thrust (vac): 13.788 kN (3,100 lbf). Isp: 255 sec. Burn time: 40 sec. Propellants: Solid. Isp(sl): 232 sec. Diameter: 0.46 m (1.50 ft). Span: 0.46 m (1.50 ft). Length: 2.50 m (8.20 ft). Country: USA. No Engines: 1. Engine: X-248A. Cost $ : 1.000 million. First Flight: 1960. Last Flight: 1964. No Launched: 24. No Failed: 1. Used on Launch Vehicles: Scout X-1. Scout X-2. Scout X-3.                   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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