Honeywell TPE331
| 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] |
The Garrett AiResearch TPE331 is a turboprop engine originally designed and manufactured by Garrett AiResearch, and produced by Honeywell Aerospace since 1999 after AlliedSignal/Garrett acquired Honeywell, keeping the Honeywell name. The TPE331 family includes 18 models and 106 configurations; the engines range from 575 to 1650 shaft horsepower.[2][3][4] The military version is designated the T76.
Design and development
The TPE331 originated in 1961 as a gas turbine (the "331") to power helicopters.[5] It first went into production in 1963.[6] More than 700 had been shipped by the end of 1973.[7] 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.[8] As of July 2016, more than 13,500 TPE331 engines have been delivered, logging more than 122 million hours of flight time.[1]
Applications
Fitted with TPE-331s as a replacement for their original engines
Specifications
General characteristics
- Type: Single-shaft turboprop with integral gearbox
- Length: 46 in (1168 mm) (TPE331-43A),[9] 42.82 in (1,088 mm) (TPE331-10)[10]
- Diameter: 21 in (533 mm) (TPE331-43A)[9]
- Dry weight: 336 lb (153 kg) (TPE331-43A),[9] 385 lb (175 kg) (TPE331-10)[10]
Components
- Compressor: Two-stage centrifugal
- Combustors: Reverse annular
- Turbine: Three-stage axial
Performance
- Maximum power output: 575 hp (429 kW)(TPE331-43A),[9] 940 hp (700 kW) (TPE331-10)[10]
- Overall pressure ratio: 10.55 (TPE331-10)[10]
- Specific fuel consumption: 0.534 lb/hp (325 g/kW) per hour (TPE331-10)[10]
- Power-to-weight ratio: 1.71 hp/lb (2.8 kW/kg) (TPE331-43A),[9] 2.44 hp/lb (4.01 kW/kg) (TPE331-10)[10]
See also
Comparable engines Pratt & Whitney Canada PT6 Related lists
Note
^ These aircraft were fitted with TPE-331s as a modification to replace their original engines
References
- ^ a b "Honeywell Continues to Hone Turboprop Engine for 50th Anniversary" (Press release). Honeywell. July 2016.
- ^ "Honeywell Aerospace TPE331 Spec Chart" Honeywell. Accessed: 29 August 2014.
- ^ [1] Archived September 8, 2010, at the Wayback Machine
- ^ "TPE331-14 Turboprop Engine" Honeywell. Accessed: 29 August 2014.
- ^ William A. Schoneberger and Robert R. H. Scholl, Out of Thin Air: Garrett's First 50 Years, Phoenix: Garrett Corporation, 1985 (ISBN 0-9617029-0-7), pp. 174-5.
- ^ Canadian Museum of Flight, "Garrett TPE331"
- ^ Schoneberger and Scholl, p. 203.
- ^ Leyes, p. 725
- ^ a b c d e Canadian Museum of Flight "Garrett TPE331-43A"
- ^ a b c d e f "TPE331-10 Turboprop Engine" (PDF). Honeywell. April 2006.
External links
- TPE 331 Cost Protection Programs
- TPE 331 Engine Conversions
- Power and fuel flow versus altitude and speed, for version 10. (Archive[dead link])
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