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).[2][3][4]
| TPE331 / T76 | |
|---|---|
_TPE331-14.jpg) | |
| TPE331-14 | |
| Type | Turboprop |
| National origin | United States |
| Manufacturer | Garrett AiResearch Honeywell Aerospace |
| First run | 1960 |
| Major applications | Fairchild Swearingen Metroliner Mitsubishi MU-2 Rockwell Turbo Commander |
| Number built | 13,500+[1] |
| Developed into | Garrett TPF351 |
Design and development
Garrett AiResearch designed the TPE331 from scratch in 1959 for the military.[5] “Designed as a 575-horsepower engine it was not a scaled-down version of a larger engine, as competitors were offering.”[6]The TPE331 originated in 1961 as a gas turbine (the "331") to power helicopters.[6] It first went into production in 1963.[7] More than 700 had been shipped by the end of 1973.[6] It was designed to be both a turboshaft (TSE331)[8] 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.[citation needed]
Performance
The 715 shp TPE331-6 used in the Beech 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.[9]
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)
| Model | Certified[a] |
|---|---|
| TPE331-1 | 1967-12[14] |
| TPE331-1U | |
| TPE331-1UA | |
| TPE331-2 | 1967-12[14] |
| TPE331-2U | |
| TPE331-2UA | |
| TPE331-3 | 1969-03-28 |
| TPE331-3U | 1969-03-28 |
| TPE331-3UW | 1969-03-28 |
| TPE331-3W | 1969-03-28 |
| TPE331-5[b] | 1970-05-15 |
| TPE331-5A | 1988-05-04 |
| TPE331-5AB | 1992-07-21 |
| TPE331-5B | 1992-07-21 |
| TPE331-5U | 1970-05-15 |
| TPE331-6[c] | 1970-05-15 |
| TPE331-6A | 1978-01-20 |
| TPE331-6U | 1970-05-15 |
| TPE331-8[d] | 1976-11-19 |
| TPE331-8A | 1981-12-24 |
| TPE331-9 | 1976-11-19 |
| TPE331-9U | 1976-11-19 |
| TPE331-10 | 1978-01-20 |
| TPE331-10A | 1980-12-12 |
| TPE331-10AV | 1996-07-19 |
| TPE331-10B | 1980-12-12 |
| TPE331-10G | 1984-08-14 |
| TPE331-10GP | 1994-12-14 |
| TPE331-10GR | 1984-08-14 |
| TPE331-10GT | 1994-12-14 |
| TPE331-10J | 1988-05-04 |
| TPE331-10N | 1992-02-06 |
| TPE331-10P | 1994-12-14 |
| TPE331-10R | 1982-06-25 |
| TPE331-10T | 1994-04-14 |
| TPE331-10U | 1978-01-20 |
| TPE331-10UA | 1982-07-29 |
| TPE331-10UF | 1982-06-25 |
| TPE331-10UG | 1984-08-14 |
| TPE331-10UGR | 1984-08-14 |
| TPE331-10UJ | 1988-05-04 |
| TPE331-10UK | 1988-11-04 |
| TPE331-10UR | 1983-11-14 |
| TPE331-11U | 1979-09-28 |
| TPE331-11UA | 1982-06-25 |
| TPE331-12 | 1984-12-19 |
| TPE331-12B[e] | 1986-12-10 |
| TPE331-12JR | 1997-10-31 |
| TPE331-12UA | 1988-05-04 |
| TPE331-12UAN | 2014-05-09 |
| TPE331-12UAR | 1987-12-18 |
| TPE331-12UER | 1991-07-22 |
| TPE331-12UHR | 1993-01-07 |
| TSE331-3U[f] | 1970-04-30 |
| TPE331-14A | 1984-04-26 |
| TPE331-14B | 1984-04-26 |
| TPE331-14F | 1989-05-24 |
| TPE331-14GR | 1992-07-13 |
| TPE331-14HR | 1992-07-13 |
| TPE331-15AW | 1988-12-05 |
| TPE331-16[g] | N/A |
| TPE331-25A | |
| TPE331-25AA | |
| TPE331-25AB | |
| TPE331-25B | |
| TPE331-25C | |
| TPE331-25D | |
| TPE331-25DA | |
| TPE331-25DB | |
| TPE331-25E | |
| TPE331-25F | |
| TPE331-25FA | |
| TPE331-29A | |
| TPE331-43 | |
| TPE331-43-A | |
| TPE331-43-B | |
| TPE331-45 | |
| TPE331-47 [h] | |
| TPE331-47-A | |
| TPE331-47-B | |
| TPE331-51 | |
| TPE331-55 | |
| TPE331-55-A | |
| TPE331-55-B | |
| TPE331-57 | |
| TPE331-57-B | |
| TPE331-61 | |
| TPE331-61-A |
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
General characteristics
- Type: Single-shaft turboprop with integral gearbox
- Length: 46 inches (1,200 mm) (TPE331-43A),[7] 42.82 in (1,088 mm) (TPE331-10)[22]
- Diameter: 21 inches (530 mm) (TPE331-43A)[7]
- Dry weight: 336 lb (152 kg) (TPE331-43A),[7] 385 lb (175 kg) (TPE331-10)[22]
Components
- Compressor: Two-stage centrifugal
- Combustors: Reverse annular
- Turbine: Three-stage axial
- Fuel type: Jet A, Jet B, Jet A-1, JP-8, JP-1, JP-4, JP-5, JP8+100[23]
Performance
- Maximum power output: 575 hp (429 kW) (TPE331-43A),[7] 940 hp (700 kW) (TPE331-10)[22]
- Overall pressure ratio: 10.55:1 (TPE331-10)[22]
- Specific fuel consumption: 0.534 lb/(hp⋅h) (325 g/kWh) (TPE331-10)[22]
- Power-to-weight ratio: 1.71 hp/lb (2.81 kW/kg) (TPE331-43A),[7] 2.44 hp/lb (4.01 kW/kg) (TPE331-10)[22]
See also
Comparable engines
Related lists
References
Bibliography
- Leyes, Richard A., II; Fleming, William A. (1999). The history of North American small gas turbine aircraft engines. Reston, VA: National Air and Space Museum and American Institute of Aeronautics and Astronautics (AIAA). pp. 632–661. ISBN 1-56347-332-1. OCLC 247550535.
{{cite book}}: CS1 maint: multiple names: authors list (link) - McClellan, J. Mac (July 1983). "Turboprop progress: Garrett stakes its fortune on engines that offer reliability with minimum maintenance". Flying. Vol. 110, no. 7. pp. 31–32. ISSN 0015-4806.
- Frignac, J-P.; Privoznik, E. J. (March 12–15, 1979). The growth and evolution of the TPE331. Gas Turbine Conference & Exhibit & Solar Energy Conference. doi:10.1115/79-GT-164. ISBN 978-0-7918-7968-9. OCLC 8518974705.
External links
Wikimedia Commons has media related to Garrett TPE331.
- TPE 331 Cost Protection Programs
- TPE 331 Engine Conversions
- Power and fuel flow versus altitude and speed, for version 10. (Archive)
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