JT9D-7R4E1 is a turbofan engine model used in aircraft.
Engine Family: turbofan
Bypass ratio: 4.9
Dry weight: 4053 kilogram
Fan diameter: 2.37 metre
Fan stages: 1
HP compressor stages: 11
HP turbine stages: 2
LP compressor stages: 4
LP turbine stages: 4
Length: 3.92 metre
Max. continuous thrust: 211.29 kilonewton
Max. takeoff thrust: 222.41 kilonewton
Overall pressure ratio: 24.2
ICAO: A310
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