General Electric CFE738
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The General Electric CFE738 is a small turbofan engine aimed at the business/commuter jet market, and is used on the Dassault Falcon 2000.
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[edit] Design
The CFE738 is comprised of a single stage fan, driven by a 3-stage low-pressure (LP) turbine, supercharging a 5-stage high-pressure (HP) axial/centrifugal compressor driven by a 2-stage HP turbine. 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 5.3 and airflow of 240lb/s. The take-off thrust is 5600lbf, flat-rated to ISA+15C.
[edit] Derivatives
In the late 1980s, GE proposed a turboprop, the "T407" or "GLC38", for the Lockheed P-7, with a maximum takeoff power of 4,475 kW (6,000 SHP). The CFE738 is based on this engine.[1]
The derivative GE38-1B (7,500 shp) is slated to power the new Sikorsky CH-53K three-engined helicopter for the USMC. [2]
[edit] Specifications
- Fan/Compressor Stages: 1/5+1C
- High-Pressure Turbine/Low-Pressure Turbine Stages:: 2/3
- Fan Diameter ~in: 35.50
- Length ~in: 68.3
- Basic Engine Weight~lb: 1,214
- Dry Weight ~lb: 1,325
- Max. Thrust (Sea Level Static)~lbf: 5,918
- Specific Fuel Consumption (Sea Level Static) ~lb/hr/lbf: 0.369
- Cruise Net Thrust (Mach 0.8,40000ft,ISA) ~lbf: 1310
- Specific Fuel Consumption (Mach 0.8,40000ft,ISA)~lb/hr/lbf: 0.645
- Overall Pressure Ratio (Top-of-Climb): ~30:1
- Bypass Ratio: 5.3
- Airflow: 240lb/s
[edit] References
[edit] External links
[edit] See also
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