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General Electric F118




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, whilst a 2 stage LP turbine drives the 3 stage fan. The combustor is annular. In 1998, the USAF's Lockheed U-2 fleet was fitted with a modified version of the F118.



Variant for the B-2

Variant for the U-2S



Type: Two Spool Turbofan
Length: 101 in (255 cm)[clarification needed]
Diameter: 46.5 in (118 cm)
Dry weight: 3200 lb (1452 kg)
Compressor: Axial, 1 stage fan, 2 stage low pressure compressor, 9 stage high pressure compressor
Combustors: Annular
Turbine: 1 stage high pressure turbine, 2 stage low pressure turbine
Maximum thrust: 19,000 lbf (84.5 kN)
Overall pressure ratio: 35:1
Thrust-to-weight ratio: 5.9:1



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