The next-generation CTS800 turboshaft family of engines was developed by the Light Helicopter Turbine Engine Company (LHTEC), a 50:50 partnership between Rolls-Royce and Honeywell.
The highly reliable and maintainable CTS800 principal engine design was originally developed to power the U.S. Army's Boeing Sikorsky RAH-66 Comanche helicopter.
The CTS800 engine features a modular design with dual shafts, two-stage centrifugal compressor, annular combustor, two-stage HP and two-stage power turbine. All models are equipped with an inlet particle separator module. Many applications require the incorporation of an output speed reduction gearbox (RGB). All models are controlled by an advanced, highly-redundant, dual channel full authority digital engine control (FADEC) system.