JT3C-12

Engine model
Manufacturer Pratt & Whitney
Engine type Turbojet

Technical specifications

Design
HP compressor stages
7
HP turbine stages
1
LP compressor stages
9
LP turbine stages
2
Dimensions
Fan diameter
0.97 m
3.18 ft
Length
3.49 m
11.45 ft
Rotation speeds
N1 RPM
6,195
N2 RPM
9,980
Thrust limits
Max. continuous thrust
51.2 kN
11,500 lbf
Max. takeoff thrust
57.8 kN
13,000 lbf
Weights
Dry weight
1,610 kg
3,549 lb

Aircraft models

Manufacturer Name Aircraft family
Boeing 720-025 Airplane