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JT9D-3A
Pratt and Whitney turbofan engine. Out of Production. Thrust is maximum sea level thrust; specific impulse is sea level value at that thrust.

AKA: JT9D. Status: Out of Production. Thrust: 208.80 kN (46,940 lbf). Unfuelled mass: 4,013 kg (8,847 lb). Specific impulse: 10,939 s. Burn time: 3,825 s.

Thrust (sl): 189.800 kN (42,669 lbf). Thrust (sl): 19,355 kgf. Engine: 4,013 kg (8,847 lb). Thrust to Weight Ratio: 5.3.

Family: Turbofan. Country: USA. Propellants: Air/Kerosene. Stages: NASA 747. Agency: Pratt and Whitney.
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