CFE CFE738
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CFE CFE738

The CFE738 is a small turbofan engine aimed at the business/commuter jet market manufactured by the CFE Company, and is used on the Dassault Falcon 2000.

Design and development

The success of the GE27/GLC38 gas generator development of the 1980s led to the formation of the CFE Company by GE and the Garrett Engine Division of Allied Signal (now Honeywell) in 1987.

The CFE738 is a two-shaft design, consisting of a single stage bypass fan connected via one shaft to a 3-stage low-pressure (LP) turbine at the rear of the engine; with a six-stage combination low-pressure/high-pressure (LP/HP) axial/centrifugal compressor (five axial stages and one centrifugal stage) driven by a two-stage HP turbine, between the fan and the LP turbine, on the other shaft. There is an axial combustion chamber between the compressor stages and the HP turbine. A mixer is built in to the jetpipe to mix cold bypass air with the hot exhaust gases. The engine has an overall pressure ratio of 35:1, which is extremely high for an engine with a centrifugal compressor. Other cycle parameters are a bypass ratio of 5.3 and airflow of 240 lb/s (108.9 kg/s). The take-off thrust is 5,600 lbf (24.9 kN), flat-rated to ISA +15°C (30°C, 86°F).

The engine was first run in 1990 and first flown on a Boeing 727 testbed on 31 August 1992.[1] It was certified by the American Federal Aviation Authority on 17 December 1993.

Applications

Specifications

General characteristics

  • Type: Turbofan engine
  • Length: 68.3 in (1,730 mm)
  • Diameter: 35.50 in (902 mm) (Fan)
  • Dry weight: 1,214 lb (551 kg) (Basic) Dry Weight: 1,325 lb (601 kg)

Components

  • Compressor: Fan/Compressor Stages: 1/5+1C (Bypass ratio: 5.3)
  • Turbine: HP Turbine/LP Turbine Stages: 2/3

Performance

See also

Related development

Related lists

References

  1. ^ "Turbojet Engines - The High Bypass Turbofans Part 2". Aviation World. Air-Britain. 2004. p. 132. ISSN 1742-996X.
  • Gunston, Bill (2006). World Encyclopedia of Aero Engines, 5th Edition. Phoenix Mill, Gloucestershire, England, UK: Sutton Publishing Limited. ISBN 0-7509-4479-X.
  • Leyes II, Richard A.; William A. Fleming (1999). The History of North American Small Gas Turbine Aircraft Engines. Washington, DC: Smithsonian Institution. ISBN 1-56347-332-1.

External links


  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.

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