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The Honeywell TPE331 (military designation: T76) is a turboprop engine. It was designed in the 1950s by Garrett AiResearch , and produced since 1999 by successor Honeywell Aerospace . The engine's power output ranges from 575 to 1,650 shaft horsepower (429 to 1,230 kW).
The company's first major product was an oil cooler for military aircraft. Garrett designed and produced oil coolers for the Douglas DB-7. [9] Boeing's B-17 bombers, credited with substantially tipping the air war in America's and Great Britain's favor over Europe and the Pacific, were outfitted with Garrett intercoolers, as was the B-25. [12]
The development of a turboprop derivative from the Honeywell TPE331 also reduced development time and production costs. [ 6 ] [ 7 ] Its applications include Airbus A220 -100 and -300 series, A300, A330, A340, Boeing 767 and 777, Bombardier CRJ700/900/100, Comac C919 and Irkut MC-21.
The T800 turboshaft engine is a product of Light Helicopter Turbine Engine Co., a joint venture between Honeywell and Rolls-Royce. The T800 is a new generation turboshaft engine developed for military helicopters, and is known as the CTS800 for commercial applications.
Cheyenne 400 with TPE331 rear exhaust. In the late 1970s, Piper avoided developing a clean-sheet light business jet to compete with the Cessna Citation I and upgraded its PT6As from 720 to 1,000 hp (540 to 750 kW) Honeywell TPE331-14s. [3] The PA-42-1000 Cheyenne IV was certified in 1984, 43 were built until 1991 and 37 remain in service in ...
The engine ran about 60 °F (33 °C) hotter than the TPE331-14 in the core. [3] It was Garrett's first free-turbine turboshaft, avoiding the high reduction gear of a single spool turboprop and allowing an easier starting since the gas generator is disengaged from the power turbine. The HP spool turns at 31,500 rpm while the LP spool turns at ...
Honeywell T55; Honeywell TPE331; Garrett TPF351 This page was last edited on 30 June 2022, at 06:54 (UTC). Text is available under the Creative Commons Attribution ...
As with the earlier 3M version for the USAF, the new version was re-engined with newer Garrett turboprops (now Honeywell TPE331) which offered more power (flat rated to 1,020 shp/760 kW with a thermodynamic limit of 1,100 shp/820 kW) and longer overhaul intervals over the original Turbomeca Astazou engines. This allowed the aircraft to be ...
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