X-250

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Model: Polaris AX-2. Gross Mass: 4,300 kg (9,400 lb). Empty Mass: 951 kg (2,096 lb). Propellants: Solid. Diameter: 1.37 m (4.49 ft). Length: 2.00 m (6.50 ft). Country: USA. No Engines: 1. Motor: A1P-2. Status: Retired 1965. First Flight: 1956. Last Flight: 1965. No Launched: 117. Used as: Polaris.St2. Other designations: Polaris A1P St2. Release conditions: Lockheed/Aerojet. Model: Polaris A2-2. Gross Mass: 4,200 kg (9,200 lb). Empty Mass: 860 kg (1,890 lb). Propellants: Solid. Diameter: 1.37 m (4.49 ft). Length: 2.10 m (6.80 ft). Country: USA. No Engines: 1. Motor: X-250. Status: Retired 1971. First Flight: 1960. Last Flight: 1971. No Launched: 205. Used as: Polaris.St2. Other designations: Polaris A2P St2. Release conditions: Lockheed/ABL. Model: Polaris A2E-2. Gross Mass: 4,200 kg (9,200 lb). Empty Mass: 860 kg (1,890 lb). Propellants: Solid. Diameter: 1.37 m (4.49 ft). Length: 2.10 m (6.80 ft). Country: USA. No Engines: 1. Motor: X-250. Status: Retired 1969. First Flight: 1965. Last Flight: 1969. No Launched: 22. Used as: Polaris.St2. Other designations: Polaris A2E St2. Release conditions: Lockheed/Hercules. Used on Launch Vehicles: Polaris. 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 - 2008 except where otherwise noted.