JT9D-7AH is a turbofan engine model used in aircraft.
Engine Family: turbofan
Bypass ratio: 5.2
Dry weight: 3992 kilogram
Fan diameter: 2.43 metre
Fan stages: 1
HP compressor stages: 11
HP turbine stages: 2
LP compressor stages: 3
LP turbine stages: 4
Length: 3.93 metre
Max. continuous thrust: 178.28 kilonewton
Max. takeoff thrust: 205.29 kilonewton
Max. takeoff thrust (wet): 212.05 kilonewton
Water injection: