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
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)

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

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
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See also

Related development

Comparable engines

Related lists

References
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