Neptune

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Model: OPd-56-39-22D-2. Gross Mass: 500 kg (1,100 lb). Empty Mass: 150 kg (330 lb). Thrust (vac): 20.000 kN (4,496 lbf). Burn time: 32 sec. Propellants: Solid. Diameter: 0.39 m (1.27 ft). Length: 3.20 m (10.40 ft). Country: USA. No Engines: 1. Motor: Neptune. Status: Retired 1961. First Flight: 1959. Last Flight: 1960. No Launched: 7. Used as: Neptune. Release conditions: ONERA. Used on Launch Vehicles: Antares. 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.