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General Electric TF34

From Wikipedia, the free encyclopedia

TF 34 601010-F-0000H-039.jpg
Type Turbofan
National origin United States
Manufacturer General Electric
First run 1971
Major applications A-10 Thunderbolt II
S-3 Viking
Variants General Electric CF34

The General Electric TF34 is an American military turbofan engine used on the A-10 Thunderbolt II and S-3 Viking.

Design and development

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.

The civilian variant, the CF34, is used on a number of business and regional jets.



Initial variant for Lockheed S-3, entered production in August 1972.


Variant for Fairchild A-10A, first flown in A-10 during May 1972. Production began in October 1974.


Improved version of GE-2 for Lockheed S-3.


A TF34 attached to an A-10 Thunderbolt II
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 TF34 mounted on the starboard pylon of an S-3B Viking aboard USS Kitty Hawk (CV-63)

Specifications (TF34-GE-400A)

Data from Jane's.[1]

General characteristics

  • Type: Twin-shaft, high-bypass turbofan engine
  • Length: 100 in (250 cm)
  • Diameter: 52.2 in (133 cm)
  • Dry weight: 1,478 lb (670 kg)



See also

Related development

Comparable engines

Related lists


  1. ^ Taylor 1982, p. 781.
  • Taylor, John W.R. Jane's All the World's Aircraft 1982-83., London, Jane's Publishing Company Ltd, 1982. ISBN 0 7106-0748-2.

External links

This page was last edited on 17 May 2021, at 19:51
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