The LHTEC T800 is a

turboshaft A turboshaft engine is a form of gas turbine that is optimized to produce shaftpower rather than jet thrust. In concept, turboshaft engines are very similar to turbojets, with additional turbine expansion to extract heat energy from the exhaust ...

engine for rotary wing applications. It is produced by the

LHTEC 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.Gunston, p. 126 In 1995 Rolls-Royce acq ...

(Light Helicopter Turbine Engine Company), a joint venture between

Rolls-Royce Rolls-Royce (always hyphenated) may refer to: * Rolls-Royce Limited, a British manufacturer of cars and later aero engines, founded in 1906, now defunct Automobiles * Rolls-Royce Motor Cars, the current car manufacturing company incorporated in ...

and

Honeywell Honeywell International Inc. is an American publicly traded, multinational conglomerate corporation headquartered in Charlotte, North Carolina. It primarily operates in four areas of business: aerospace, building technologies, performance ma ...

. The commercial and export version is the CTS800. The engine was primarily developed for the

United States Army The United States Army (USA) is the land service branch of the United States Armed Forces. It is one of the eight U.S. uniformed services, and is designated as the Army of the United States in the U.S. Constitution.Article II, section 2, cla ...

's cancelled RAH-66 Comanche armed reconnaissance helicopter, but has found use in other applications.

Design and development

The engine was originally developed for the

's LHX armed reconnaissance helicopter competition, competing against the

Avco/Pratt & Whitney T800 The Avco/Pratt & Whitney T800 (company designation APW34) was a turboshaft engine for rotary wing applications, and was produced by Avco/Pratt & Whitney (APW), a joint venture between Avco Lycoming and Pratt & Whitney. The engine was developed f ...

. The LHTEC T800 was selected to power the LHX in 1988.Leyes, p. 213-216 The Boeing-Sikorsky team was selected to build the RAH-66 Comanche in 1991. A pair of T800-powered RAH-66 prototypes were constructed and underwent flight testing between 1996 and 2004. The LHX program was canceled in 2004, primarily due to cost overruns during its lengthy development, and the US Army's changing requirements.

Applications

TAI T-129 Atak LHTEC CTS800 installation

* AgustaWestland Super Lynx 300 (CTS800-4N) *

AgustaWestland AW159 Wildcat The AgustaWestland AW159 Wildcat (previously called the Future Lynx and Lynx Wildcat) is a British military helicopter. It is an improved version of the Westland Super Lynx designed to serve in the battlefield utility, search and rescue and a ...

(CTS800-4N) *

Ayres LM200 Loadmaster The Ayres LM200 Loadmaster was a small cargo aircraft developed in the 1990s by Ayres Corporation largely for the needs of small-package carriers. In 1996, urged on by Federal Express, development was begun, designed to carry four demi containers ...

(LHTEC CTP800-4T) (aircraft not built) * Boeing-Sikorsky RAH-66 Comanche (canceled) *

ShinMaywa US-2 The ShinMaywa US-2 is a large Japanese short takeoff and landing amphibious aircraft developed and manufactured by seaplane specialist ShinMaywa (formerly ''Shin Meiwa''). It was developed from the earlier Shin Meiwa US-1A seaplane, which was ...

(CTS800-4K) - boundary layer compressor drive *

Sikorsky X2 The Sikorsky X2 is an experimental high-speed compound helicopter with coaxial rotors, developed by Sikorsky Aircraft, that made its first flight in 2008 and was officially retired in 2011. Design and development Sikorsky developed the X2 heli ...

(T800-LHT-801) *

TAI/AgustaWestland T129 ATAK The TAI/AgustaWestland T129 ATAK is a twin-engine, tandem seat, multi-role, all-weather attack helicopter based on the Agusta A129 Mangusta platform. The T129 was developed by Turkish Aerospace Industries (TAI) in partnership with Leonardo (Ag ...

(CTS800-4A) *

TAI T625 Tai or TAI may refer to: Arts and entertainment *Tai (comics) a fictional Marvel Comics supervillain *Tai Fraiser, a fictional character in the 1995 film ''Clueless'' *Tai Kamiya, a fictional character in ''Digimon'' Businesses and organisations ...

Specifications (T800-LHT-801)

References

External links

Honeywell CTS800 page

Rolls-Royce CTS800 page
{{USAF gas turbine engines 1980s turboshaft engines

Design and development

Applications

Specifications (T800-LHT-801)

See also

References

External links