JT9D-3A

Designer: Pratt and Whitney. Propellants: Air/Kerosene. Thrust(vac): 208.800 kN (46,940 lbf). Thrust(sl): 189.800 kN (42,669 lbf). Isp: 10,939 sec. Burn time: 3,825 sec. Mass Engine: 4,013 kg (8,847 lb). Chambers: 1. Thrust to Weight Ratio: 5.30. Country: USA. Status: Out of Production.

Thrust is maximum sea level thrust; specific impulse is sea level value at that thrust.

JT9D-3A used on Rocket Stages

Used on stage: NASA 747.

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