Rolls-Royce T406: Difference between revisions
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Revision as of 08:25, 9 August 2010
| T406 / AE 1107C-Liberty | |
|---|---|
| |
| A T406 engine pod on a V-22 | |
| Type | Turboshaft |
| National origin | United States |
| Manufacturer | Allison Engine Company Rolls-Royce plc |
| Major applications | V-22 Osprey |
The Rolls-Royce T406 (company designation AE 1107C-Liberty) is a turboshaft engine which powers the Bell-Boeing V-22 Osprey tiltrotor. The Osprey is in service with the United States Marine Corps and United States Air Force. The engine delivers 6,000 shp (4,470 kW).
Design
The T406/AE1107C Liberty shares a common core with the AE 3007 and AE 2100 series of engines.
The V-22's T406 powerplants are housed in wing-tip tilting nacelles, allowing the distinctive flight characteristics of the V-22. For take off and landing the nacelles are directed vertically (90° to fuselage), while for forward flight they are rotated parallel to fuselage. The engine has been considered as a cost-effective upgrade for existing heavylift helicopters such as the CH-47 Chinook and the CH-53.[1]
Applications
Specifications (T406)
General characteristics
- Type: Turboshaft
- Length: 78.1 in (1,980 mm)
- Diameter: 34.2 in (890 mm)
- Dry weight: 971 lb (440 kg)
Components
- Compressor: 14-stage high pressure axial compressor
- Turbine: 2-stage high pressure and 2-stage power turbine
Performance
- Maximum power output: 6,150 shp (4,586 kW)
- Overall pressure ratio: 16.7:1
- Power-to-weight ratio: 6.33 shp/lb (10.4 kW/kg)
See also
Related development
Related lists
References
- Leyes II, Richard A. (1999). The History of North American Small Gas Turbine Aircraft Engines. Washington, DC: Smithsonian Institution. ISBN 1-56347-332-1.
{{cite book}}: Unknown parameter|coauthors=ignored (|author=suggested) (help)
External links
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