General Electric F101
|A General Electric F101 engine|
|National origin||United States|
|Major applications||Rockwell B-1 Lancer|
|Developed into||General Electric F110 |
CFM International CFM56
The General Electric F101 is an afterburning turbofan jet engine. It powers the Rockwell B-1 Lancer strategic bomber fleet of the USAF. In full afterburner it produces a thrust of more than 30,000 pounds-force (130 kN). The F101 was GE's first turbofan with an afterburner.
The F101 was developed specifically for the Advanced Manned Strategic Aircraft, which became the B-1A. The F101 powered the four development aircraft from 1970 to 1981. The B-1A was officially cancelled in 1977. However the flight test program continued. General Electric was awarded a contract to further develop the F101-102 engine variant. This turbofan eventually powered the B-1B from 1984, entering service in 1986. The B-1's four F101 engines helped the aircraft win 61 world records for speed, payload and range.
The GE F110 fighter engine is a derivative of the F101, designed using data from the F101-powered variant of the F-16 Fighting Falcon tested in the early 1980s. The F101 also became the basis for the highly successful CFM56 series of civil turbofans.
Data from 
- Type: Turbofan
- Length: 181 in (460 cm)
- Diameter: 55 in (140 cm)
- Dry weight: 4,400 lb (1995 kg)
- Compressor: Axial, 2 stage fan, 9 stage high pressure compressor
- Combustors: Annular
- Turbine: 1 stage high pressure turbine, 2 stage low pressure turbine
- Maximum power output: 17,390 lbf (77.4 kN) (dry thrust), 30,780 lb (136.9 kN) (with afterburner)
- Overall pressure ratio: 26.8:1
- Specific fuel consumption: 0.562 lb/(lbf h) (dry thrust), 2.46 lb/(lbf h) (max thrust)
- Thrust-to-weight ratio: 7.04:1 (afterburner)
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