LHTEC

Company type	Aerospace Engine Manufacturer
Industry	Aerospace & Defense
Founded	1985
Headquarters	Indianapolis, Indiana
Area served	Worldwide
Key people	Daryl Mastin, President
Products	Gas turbine engines
Parent	Rolls-Royce Corporation and Honeywell Aerospace

LHTEC (Light Helicopter Turbine Engine Company) is a joint venture between Rolls-Royce and Honeywell. The company was originally a partnership between the Allison Engine Company and AlliedSignal Aerospace.^[1] In 1995 Rolls-Royce acquired Allison, and AlliedSignal merged with Honeywell in 1999, and adopted its name.

The partnership was formed to develop the T800 turboshaft engine for the United States Army's RAH-66 Comanche armed reconnaissance helicopter.^[1][2][3] Despite the cancellation of this 650+ aircraft project, the company has been able to sell the T800, and its civil CTS800 model, for other applications, namely the AgustaWestland Super Lynx and AW159 Wildcat.^[1]

• LHTEC T800/CTS800 turboshaft and CTP800 turboprop

• Gunston, Bill (2006). World Encyclopedia of Aero Engines, 5th Edition. Phoenix Mill, Gloucestershire, England, UK: Sutton Publishing Limited. ISBN 0-7509-4479-X.
• Leyes II, Richard A.; William A. Fleming (1999). "5". The History of North American Small Gas Turbine Aircraft Engines. Washington, DC: Smithsonian Institution. ISBN 1-56347-332-1.

• Honeywell CTS800 page
• Rolls-Royce CTS800 page

v t e Allison Engine Company aircraft engines
V engines	VG-1410 V-1710 V-3420
Turbojets	J33 J35 J71 J102
Turbofans	AE 3007 AR.168R† TF32 TF41
Turboprops/Turboshafts	250/T63 AE 2100 T38 T40 T54 T56 (variants) T61 T78 T406 T701 T800†
Propfan	578-DX†
† Joint development aeroengines