LHTEC T800

Last updated
T800 / CTS800
AgustaWestland AW159 LHTEC CTS800 installation.jpg
AgustaWestland AW159 Wildcat installation
Type Turboshaft
National originUnited States
Manufacturer LHTEC
Major applications AgustaWestland AW159
Boeing-Sikorsky RAH-66 Comanche
TAI/AgustaWestland T129 ATAK

The LHTEC T800 is a turboshaft engine for rotary wing applications. It is produced by the LHTEC (Light Helicopter Turbine Engine Company), a joint venture between Rolls-Royce and Honeywell. The commercial and export version is the CTS800. The engine was primarily developed for the United States Army's cancelled RAH-66 Comanche armed reconnaissance helicopter, but has found use in other applications.

Contents

Design and development

The first RAH-66 prototype Rah-66 c. 2000.jpg
The first RAH-66 prototype

The engine was originally developed for the United States Army's LHX armed reconnaissance helicopter competition, competing against the Avco/Pratt & Whitney T800. The LHTEC T800 was selected to power the LHX in 1988. [1] The Boeing-Sikorsky team was selected to build the RAH-66 Comanche in 1991. [2] 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. [3] [4]

Applications

TAI/AgustaWestland T129 installation TAI T-129 Atak LHTEC CTS800 installation.jpg
TAI/AgustaWestland T129 installation

Specifications (T800-LHT-801)

Data from[ citation needed ]

General characteristics

Components

Performance

See also

Comparable engines

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<span class="mw-page-title-main">LHTEC</span>

LHTEC is a joint venture between Rolls-Royce and Honeywell. The company was originally a partnership between the Allison Engine Company and AlliedSignal Aerospace. In 1995 Rolls-Royce acquired Allison, and AlliedSignal merged with Honeywell in 1999, and adopted its name.

<span class="mw-page-title-main">Honeywell T55</span> Family of turboprop aircraft engines

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The Garrett F109 was a small turbofan engine developed for the Fairchild T-46 by Garrett AiResearch. With the United States Air Force's cancellation of the T-46 program in 1986, further development of the engine ceased, and with it the civil TFE109 version.

The Avco/Pratt & Whitney T800 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 for the United States Army's LHX armed reconnaissance helicopter competition to develop the Boeing-Sikorsky RAH-66 Comanche, but lost to the competing LHTEC T800 in 1988.

<span class="mw-page-title-main">Free-turbine turboshaft</span>

A free-turbine turboshaft is a form of turboshaft or turboprop gas turbine engine where the power is extracted from the exhaust stream of a gas turbine by an independent turbine, downstream of the gas turbine. The power turbine is not mechanically connected to the turbines that drive the compressors, hence the term "free", referring to the independence of the power output shaft. This is opposed to the power being extracted from the turbine/compressor shaft via a gearbox.

The TEI TS1400 is a 1,400 shp turboshaft engine for rotary wing applications. It is developed by the Tusaş Engine Industries (TEI) in Turkey.

<span class="mw-page-title-main">ATEC T900</span>

The ATEC T901 (HPW3000) was a turboshaft engine in the 3,000 shp (2,200 kW) class under development for the United States Army's Improved Turbine Engine Program (ITEP). The ITEP plans to re-engine over 1,300 Sikorsky UH-60 Black Hawk and more than 600 Boeing AH-64 Apache, and to power the Future Attack Reconnaissance Aircraft, beginning after 2025. The T900 was developed by the Advanced Turbine Engine Company (ATEC), a joint venture between Honeywell Aerospace and Pratt & Whitney. In February 2019, the US Army selected the GE T901 as the winner of the program.

References

  1. Leyes, p. 213-216
  2. Stevenson, Richard W. (6 April 1991). "Boeing-Sikorsky Gets Copter Pact". The New York Times. Retrieved 20 August 2018.
  3. Fulghum, David A.; Wall, Robert (29 February 2004). "Comanche Helicopter Program Killed". Aviation Week.
  4. "Army cancels Comanche helicopter". CNN. 23 February 2004. Archived from the original on 25 October 2012. Retrieved 8 July 2011.