Company typeAerospace Engine Manufacturer
IndustryAerospace & Defense
HeadquartersIndianapolis, Indiana
Area served
Key people
Daryl Mastin, President
ProductsGas turbine engines
ParentRolls-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]



  1. ^ a b c Gunston, p. 126
  2. ^ Leyes, p. 213-216
  3. ^ "LHTEC wins T800 fight" (PDF). Flight International. 5 November 1988. p. 2. Retrieved 21 February 2019.