General Electric TF34
The General Electric TF34 is an American military turbofan engine used on the A-10 Thunderbolt II and S-3 Viking. Developed by GE Aircraft Engines during the late 1960s, the original engine comprises a single stage fan, driven by a 4-stage low pressure (LP) turbine, supercharging a 14-stage high pressure (HP) compressor, driven by a 2-stage HP turbine. An annular combustor is featured. The TF34-GE-400A is rated at 9,275 lbf (41.26 kN) static thrust.
| TF34 | |
|---|---|
 | |
| Type | Turbofan |
| National origin | United States |
| Manufacturer | General Electric |
| First run | 1971 |
| Major applications | A-10 Thunderbolt II S-3 Viking |
| Unit cost | TF34-GE-400: $1.95 million (in 2015) |
| Variants | General Electric CF34 |
The civilian variant, the CF34, is used on a number of business and regional jets.
Applications
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A TF34 attached to an A-10 Thunderbolt II
A TF34 mounted on the starboard pylon of an S-3B Viking aboard USS Kitty Hawk (CV-63)
- A-10 Thunderbolt
- S-3 Viking
- Sikorsky S-72
- RQ-170 Sentinel
Specifications (TF34-GE-100A)
Data from
General characteristics
- Type: Twin-shaft, high-bypass turbofan engine
- Length: 100 in (250 cm)
- Diameter: 48.5 in (123 cm)
- Dry weight: 1,443 lb (655 kg)
Components
- Compressor: Single-stage fan, 14 stage HP axial compressor
- Combustors: Axial, annular
- Turbine: 4 stage LP, 2 stage HP
Performance
- Maximum thrust: 9,065 lbf (40.32 kN; 4,112 kgf)
- Turbine inlet temperature: 1,495 °F (813 °C)
- Fuel consumption: 3,363 lb/h (1,525 kg/h) at sea level, static conditions
- Specific fuel consumption: 0.371 lb/(h·lbf)
- Thrust-to-weight ratio: 6.28
See also
Related development
Comparable engines
Related lists
References
External links
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