JT9D-3

Engine model
Manufacturer Pratt & Whitney
Engine type Turbofan

Technical specifications

Design
Fan stages
1
HP compressor stages
11
HP turbine stages
2
LP compressor stages
3
LP turbine stages
4
Water injection Yes
Dimensions
Fan diameter
2.43 m
7.97 ft
Length
3.93 m
12.89 ft
Performance
Bypass ratio
5.2:1
Pressure ratio
22:1
Thrust limits
Max. continuous thrust
161.9 kN
36,400 lbf
Max. takeoff thrust
193.5 kN
43,500 lbf
Max. takeoff thrust (wet)
200.2 kN
45,000 lbf