JT9D-20J is a turbofan engine model used in aircraft.
Engine Family: turbofan
Bypass ratio: 5.2
Dry weight: 3892 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: 174.55 kilonewton
Max. takeoff thrust: 213.74 kilonewton
Overall pressure ratio: 23.5
ICAO: DC10
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