Antares 2 Gross Mass: 1,400 kg (3,000 lb). Empty Mass: 300 kg (660 lb). Thrust (vac): 93.094 kN (20,928 lbf). Isp: 293 sec. Burn time: 36 sec. Propellants: Solid. Isp(sl): 233 sec. Diameter: 0.78 m (2.55 ft). Span: 0.78 m (2.55 ft). Length: 2.90 m (9.50 ft). Country: USA. No Engines: 1. Engine: X-259. Cost $ : 4.000 million. First Flight: 1962. Last Flight: 1983. No Launched: 92. No Failed: 3. Used on Launch Vehicles: Scout A. Scout B. Scout D. Scout F. Scout X-2. Scout X-3. Scout X-4.                   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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