The LHTEC T800 is a collaborative turboshaft engine between Rolls-Royce and Honeywell.

• T800 power range: 1,300 - 1,800shp
• First engine delivery (CTS800-4) September 2001
• CTS800-4N certification completed in November 2003
• CTS800-powered Super Lynx now ordered by four customers

The T800 engine and its civil derivatives (CTS800/CTP800) feature modular design with dual shafts, two-stage centrifugal compressor, annular combustor, two-stage HP and two-stage power turbine. Turboshaft models are equipped with an inlet particle separator module. Some versions (including the CTP800) are also equipped with a speed reduction gearbox. All models are controlled by advanced FADEC (full authority digital engine control) (Mil-Std 1553 or ARNIC 429 bus) systems.

Applications include:

• AgustaWestland Super Lynx 300
• ShinMaywa US-1A Kai
• Sikorsky X2 Technology prototype