X-248A Manufacturer Name: X-248A. Other Designations: Altair 1A. Designer: Thiokol. Gross Mass: 390 kg (850 lb). Empty Mass: 181 kg (399 lb). Propellants: Solid. Thrust(vac): 13.800 kN (3,102 lbf). Thrust(sl): 12.500 kN (2,810 lbf). Isp: 255 sec. Isp (sea level): 232 sec. Burn time: 40 sec. Diameter: 0.46 m (1.50 ft). Length: 2.50 m (8.20 ft). Chambers: 1. Country: USA. First Flight: 1960. Last Flight: 1964. Flown: 24. X-248A used on Rocket Stages Used on stage: Altair 1A. on launch vehicle: Scout X-1. Used on stage: Altair 1A. on launch vehicle: Scout X-2. Used on stage: Altair 1A. on launch vehicle: 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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