Japanese Aero Engines Corporation
The Rolls-Royce/JAEC RJ500 was a 20,000 lbf (89 kN) civil turbofan which Rolls-Royce and the Japanese Aero Engine Corporation (JAEC) consortium hoped to develop for aircraft like the Boeing 737-300 and the McDonnell Douglas MD-80.
A single stage fan, driven by a three stage LP turbine, supercharged the 9 stage HP compressor, which was driven by 2 stage air-cooled HP turbine. The combustor was annular and the exhaust separate jets. The HP compressor was based on a scale-up of the Rolls-Royce RB401 HP compressor, with a ninth stage added at the rear. Fan diameter was restricted to 60in, because of the relatively short undercarriage of the 737. Even then, the engine nacelle required an oblate shape so as to improve ground clearance.
- Type: Turbofan
- Length: 2,571 millimetres (101 in)
- Diameter: 1,530 millimetres (60 in) (fan)
- Dry weight: 1,867 kilograms (4,116 lb)
- Compressor: Single stage fan, nine stage HP
- Combustors: Annular
- Turbine: Three stage LP, two stage HP
- Gunston, Bill (2006). World Encyclopedia of Aero Engines, 5th Edition. Phoenix Mill, Gloucestershire, England, UK: Sutton Publishing Limited. ISBN 0-7509-4479-X.
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