JT9D-7R4D1 is a turbofan engine model used in aircraft.
Engine Family: turbofan
Bypass ratio: 4.9
Dry weight: 4044 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: 203.73 kilonewton
Max. takeoff thrust: 213.51 kilonewton
Overall pressure ratio: 23.4
ICAO: A310
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