Friday, October 1, 2010

General Electric F118

The General Electric F118 was a turbofan jet engine which was manufactured by GE to power the B-2 bomber. It was developed from the F110 engine. The F118 was an axial-flow engine with annular combustor. A single stage high pressure turbine drove the nine-stage highe pressure compressor, while a two-stage low pressure turbine drove the three-stage fan. The US Air Force Lockheed U-2 aircraft were equipped with a modified F118 engine.

Specifications for the General Electric F118

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

Source: Wikipedia