Honeywell TPE331

Design and development

Garrett AiResearch designed the TPE331 from scratch in 1959 for the military. "Designed as a 575-horsepower engine it was not a scaled-down version of a larger engine, as competitors were offering." The TPE331 originated in 1961 as a gas turbine (the "331") to power helicopters. It first went into production in 1963. More than 700 had been shipped by the end of 1973. It was designed to be both a turboshaft (TSE331) and a turboprop (TPE331), but the turboshaft version never went into production. The first engine was produced in 1963, installed on the Aero Commander in 1964 and put into production on the Aero Commander Turbo Commander in June 1965.

Performance

The 715 shp TPE331-6 used in the Beechcraft King Air B100 have a 400 hr fuel nozzle cleaning interval, 1,800 hr hot section inspection interval and a 5,400 hr. time between overhaul; approval is possible for 3,000 hr HSIs and 6,000 hr overhauls and engine reserves are cheaper than for the PT6A.

Variants

Military variants (T76)

;T76-G-2: ;T76-G-4: ;T76-G-6: ;T76-G-8: ;T76-G-10: ;T76-G-12: ;T76-G-12A: ;T76-G-14: ;T76-G-16: ;T76-G-410: ;T76-G-411: ;T76-G-416: ;T76-G-417: ;T76-G-418: ;T76-G-419: ;T76-G-420: ;T76-G-421:

Commercial variants (TPE331)

Applications

• Aero/Rockwell Turbo Commander 680/690/840/980/1000
• Antonov An-38
• Ayres Thrush
• BAe Jetstream 31/32
• British Aerospace Jetstream 41
• Beech B100 King Air
• CASA C-212 Aviocar
• Cessna 441 Conquest II
• Comp Air 9
• Conroy Stolifter
• Dornier 228
• Fairchild Swearingen Metroliner
• General Atomics MQ-9 Reaper
• Grob G 520
• HAL HTT-40
• Kestrel K-350
• Mitsubishi MU-2
• North American Rockwell OV-10 Bronco
• Pilatus/Fairchild PC-6C Turbo-Porter
• Piper Cheyenne 400
• Short SC.7 Skyvan
• Short Tucano (EMB-312S Tucano)
• Swearingen Merlin

Fitted with TPE-331s as a replacement for their original engines

• Beechcraft Model 18
• Cessna 208 Caravan
• Cessna 337 Skymaster
• de Havilland Canada DHC-2 Beaver
• de Havilland Canada DHC-3 Otter
• de Havilland DH.104 Dove
• FMA IA 58 Pucará
• Grumman Ag Cat
• Grumman S-2 Tracker
• Marsh S-2F3AT Turbo Tracker
• Handley Page Jetstream
• PAC Fletcher
• SibNIA TVS-2MS (Antonov An-2 conversion)
• Sikorsky H-19 Chickasaw

Specifications

and start a new, fully formatted line with -- |power/weight= {{#expr:575/336round2}} hp/lb (TPE331-43A), {{#expr:940/385round2}} hp/lb (TPE331-10) |thrust/weight=

References

Bibliography

References

1. Brecken, Steve. (July 2016). "Honeywell Continues to Hone Turboprop Engine for 50th Anniversary". [[Honeywell Aerospace]].
2. "TPE331 Spec Chart". [[Honeywell Aerospace]].
3. "TPE". [[Honeywell Aerospace]].
4. (2006-07-10). "TPE331-14 Turboprop Engine". [[Honeywell Aerospace]].
5. (2017-04-11). "TPE331 Engines Offers Super Performance on Dornier 228 Aircraft". [[Honeywell Aerospace]].
6. (1985). "Out of Thin Air: Garrett's First 50 Years". [[Garrett AiResearch.
7. "Garrett TPE331". [[Canadian Museum of Flight]].
8. Wilkinson, Paul H.. (1964). "Aircraft engines of the World 1964/65". Sir Isaac Pitman & Sons Ltd..
9. George, Fred. (2017-01-30). "Used Aircraft Report: Beech King Air B100". Aviation Week Network.
10. "Garrett engine is redesignated".
11. (April 2006). "TPE331-10 Turboprop Engine". [[Honeywell Aerospace]].
12. (February 2024). "TPE331-10 Turboprop Engine". [[Honeywell Aerospace]].
13. Honeywell (AlliedSignal, Garrett, AiResearch). (February 1, 2000). "E3WE". [[Federal Aviation Administration]] (FAA).
14. Honeywell (AlliedSignal, Garrett, AiResearch). (May 22, 2014). "E4WE". [[Federal Aviation Administration]] (FAA).
15. Honeywell (AlliedSignal, Garrett). (February 1, 2000). "E18NE". [[Federal Aviation Administration]] (FAA).
16. Honeywell (AlliedSignal, Garrett, AiResearch). (February 1, 2000). "E2WE". [[Federal Aviation Administration]] (FAA).