Engineering:General Electric F118
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! Manufacturer | General Electric |-
The General Electric F118 is a non-afterburning turbofan engine produced by GE Aviation, and is derived from the General Electric F110 afterburning turbofan.
Design and development
The F118 is a non-afterburning derivative of the F110 specially developed for the B-2 Spirit stealth bomber. A single stage HP turbine drives the 9 stage HP compressor, while a 2-stage LP turbine drives the 3 stage fan. The combustor is annular. Thrust is in the 19,000 lbf (84.5 kN) class. In 1998, the USAF's Lockheed U-2S fleet was fitted with a modified version of the F118 with slightly lower thrust of 17,000 lbf (75.6 kN).[1]
Variants
Applications
Specifications (F118-100)
Data from General Electric,[3] Aviation Week & Space Technology[4]
General characteristics
- Type: Two Spool turbofan
- Length: 101 in (260 cm)
- Diameter: 46.5 in (118 cm)
- Dry weight: 3,200 lb (1,500 kg)
Components
- Compressor: Axial, 1 stage fan, 2 stage LP compressor, 9 stage HP compressor
- Combustors: Annular
- Turbine: 1 stage HP turbine, 2 stage LP turbine
Performance
- Maximum thrust: 19,000 lbf (85 kN)
- Overall pressure ratio: 35:1
- Thrust-to-weight ratio: 5.9:1
See also
Related development
Related lists
References
Notes
- ↑ Donald, David, ed. "U-2, The Second Generation". Black Jets. AIRtime, 2003. ISBN 1-880588-67-6.
- ↑ 2.0 2.1 Taylor 1996, p 594
- ↑ "F118 turbofan engines". GE Aviation. https://www.geaerospace.com/sites/default/files/datasheet-F118_1.pdf.
- ↑ Gas Turbine Engines. Aviation Week & Space Technology Source Book 2009. p. 118.
Bibliography
- Taylor, Michael J. H. (1996). Brassey's World Aircraft & Systems Directory. London, England: Brassey's. ISBN 1-85753-198-1. https://archive.org/details/brasseysworldair0000unse.
External links
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