Honeywell/ITEC F124

The F124 is a low-bypass turbofan engine derived from the civilian Honeywell TFE731, and the F125 is its afterburning version. Development began in the late 1970s for the Republic of China (Taiwan) Air Force AIDC F-CK Indigenous Defence Fighter, growing out of the TFE1042 afterburning derivative that Garrett announced in 1978 with the Swedish company Volvo Flygmotor, and the engine first ran in 1979. It has an unusual design for a two-spool gas turbine, using both axial and centrifugal compressors in its high-pressure compressor. It powers the Aero L-159 Alca and the Alenia Aermacchi M-346, there are only three production variants, and in 2009 the Indian Air Force considered the F125 as a replacement for the Rolls-Royce Turbomeca Adour engines of the SEPECAT Jaguar.