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Neptune engine
Part of OPd-56-39-22D
ONERA solid rocket engine. Second stage of OPd-56-39-22D vehicle.

AKA: Neptune;OPd-56-39-22D-2. Status: Retired 1961. Thrust: 20.00 kN (4,496 lbf). Gross mass: 500 kg (1,100 lb). Unfuelled mass: 150 kg (330 lb). Burn time: 32 s. Height: 3.20 m (10.40 ft). Diameter: 0.39 m (1.27 ft).



Country: USA. Launch Vehicles: OPd-56-39-22D, Antares. Propellants: Solid. Stages: Neptune engine. Agency: ONERA.

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