Honeywell TPE331

Turboprop engine TPE331

The Honeywell TPE331 (also: Garrett TPE331, military name: T76 ) is a turboprop engine that was developed by the US manufacturer Garrett AiResearch . It was the manufacturer's first turbine for propulsion purposes in aviation and was based on experience with gas turbines as auxiliary engines . The approval took place in February 1965 with an initial 451 eKW. To date, over 12,700 units have been manufactured.

The engine is now being produced by Honeywell for conversion kits for the De Havilland Canada DHC-2 , De Havilland Canada DHC-3 and the Short Skyvan . An installation in the Antonov An-2 is currently being tested. It also served as the basis for the Honeywell TFE731 .

Versions

• T76-G-420: 776 kW
• TPE 331: 429 kW
• TPE 331-2: 525 kW
• TPE 331-3: 617 kW
• TPE 331-5 / 6/8: 529 kW
• TPE 331-10U: 662 kW
• TPE 331-11U: 735 kW
• TPE 331-12U: 809 kW
• TPE 331-14: 919 kW
• TPE 331-15: 1209 kW

Technical specifications

• Length: 1092-1168 mm
• Width 533 mm
• Height: 660 mm
• Weight (TPE331-3): 161 kg
• Power (TPE331-3): 529 kW
• Compressor: 2 stages, radial
• Combustion chamber: 1 ring-shaped
• Turbine: 3 stages, axial

use

• Cessna 208 B Grand Caravan (Supervan 900)
• Cessna 441 Conquest II
• Grumman S-2T and S-2AT
• Short Tucano T1
• Short Skyvan
• De Havilland Canada DHC-2
• de Havilland Canada DHC-3
• Dornier Do 228
• North American OV10 (Bronco)
• General Atomics MQ-9
• Mitsubishi MU-2
• Turbo Commander

Web links

• Honeywell: Manufacturer website (English)

Individual evidence

1. ↑ Initial tests of Honeywell TPE-331-powered An-2 completed. Flightglobal.com, August 29, 2012, accessed August 31, 2012 .