General Electric TF34

The TF34 was launched in 1967 for the U.S. Navy S-3 Viking. First flown in 1971, it has since been used by the U.S. Air Force A-10 and has a growing civil market. The civil version of the TF34 is designated the CF34.


  • TF34-GE-100: 9,065 lb (40.3 kN) thrust
  • CF34-3A1: 9,220 lb (41.0 kN) thrust


  • Turbofan
  • single-stage fan
  • 14-stage compressor
  • Mass flow: 338 lbs/sec

used by

  • Fairchild Republic A-10
  • Thunderbolt II
  • Canadair CRJ Regional Jet
  • Lockheed S-3 Viking