100 - 200kg turboprop TPE331

for airlinersfor general aviation

Product Overview
The TPE331 turboprop engine series, first certified in 1965, comprises multiple models designed for military, regional airline, agricultural and general aviation applications. With over 13,000 units delivered and more than 122 million flight hours, the series offers proven operational performance including quick throttle response, favorable power-to-weight characteristics and extended maintenance intervals.

Key Benefits

• High power-to-weight ratio for improved aircraft performance
• Rapid horsepower response for efficient climb and takeoff
• Improved cruise speed and climb rates
• Lower specific fuel burn and extended operating range
• Long maintenance intervals reducing downtime
• Lower overall operating costs over lifecycle
• Quick throttle response enabling shorter takeoff runs

Specifications (organized)
Performance

• Oil: Mil-L-23699B, Mil-L-7808, Type I / Type II
• Operational limits (demonstrated): Sea level to 45,000 ft (≈13,716 m); operating temperature to +55ºC
• Start capability (demonstrated): Sea level to 30,000 ft (≈9,144 m); to +55ºC
• Overall pressure ratio: 10.55

Power and Electrical

• Electrical configuration: 24 V DC, up to 16.2 A (max)

Maintenance

• Typically supplied with: Aluminum gearbox
• Optional: Water methanol augmentation manifold

Connectivity and Systems

• Compressor bleed: high pressure 10% (max)
• Major components and systems (examples): airspeed and ambient pressure ratio transducer; beta-pressure sensing switch; control system; dual continuous ignition; fire-shield adapter; fuel anti-ice heating; fuel pump; fuel purge system; fuel shutoff valve; lubrication system; negative-torque-sensing (NTS) system; oil temperature sensor; propeller flange; propeller governor; propeller-pitch control; torque and temperature limiting systems

Physical

• Airflow: 7.7 lb/sec (≈3.49 kg/s)
• Dry weight: 385 lb (≈175 kg)

Environmental / Fuel

• Compatible fuels: Jet A, Jet B, Jet A-1, JP-8, JP-1, JP-4, JP-5, JP8+100

Technical characteristics

• Model / Series: TPE331
• Oil specifications: Mil-L-23699B, Mil-L-7808, Type I / Type II
• Operational altitude (demonstrated): SL to 45,000 ft (≈13,716 m); ambient up to +55ºC
• Start capability (demonstrated): SL to 30,000 ft (≈9,144 m); up to +55ºC
• Overall pressure ratio: 10.55
• Electrical: 24 V DC, up to 16.2 A (max)
• Typical airflow: 7.7 lb/sec (≈3.49 kg/s)
• Dry weight: 385 lb (≈175 kg)
• Compressor bleed: high pressure 10% (max)
• Compatible fuels: Jet A / Jet B / Jet A-1 / JP-8 / JP-1 / JP-4 / JP-5 / JP8+100
• Commonly paired items: aluminum gearbox; water methanol augmentation manifold
• Major systems: dual continuous ignition, lubrication and fuel systems, NTS, propeller flange/governor/pitch control, torque and temperature limiting, fuel anti-ice heating, airspeed and ambient pressure transducers