FW-4S TEM640 Other Designations: Altair 3. Designer: Thiokol. Gross Mass: 301 kg (663 lb). Empty Mass: 25 kg (55 lb). Propellants: Solid. Thrust(vac): 27.400 kN (6,160 lbf). Thrust(sl): 25.000 kN (5,620 lbf). Isp: 280 sec. Isp (sea level): 255 sec. Burn time: 27 sec. Diameter: 0.64 m (2.09 ft). Length: 2.53 m (8.30 ft). Chambers: 1. Country: USA. First Flight: 1965. Last Flight: 1994. Flown: 66.                   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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