General Electric J85 Engine
GE J85 Engine
The J85 engine is a powerplant for high-performance trainers and tactical aircraft. With more than 75 million flight hours experience on military and commercial models, the J85 offers the highest thrust-to-weight ratio of any production engine in its class in the free world. J85 engines first entered service in 1960. It is used on the […]
The J85 engine is a powerplant for high-performance trainers and tactical aircraft. With more than 75 million flight hours experience on military and commercial models, the J85 offers the highest thrust-to-weight ratio of any production engine in its class in the free world.
J85 engines first entered service in 1960. It is used on the F5 military fighter jet and the T38 military trainer aircraft. With thousands of engines still flying in a number of applications, J85 remains in active service in 35 countries.
Specs
- Compressor: 8 stages (9 in J85-21) axial
- Diameter: 17.7 in (45 cm)
- Dry Weight: 396–421 lb (180–191 kg)
- Length: 45.4–51.1 in (115–130 cm) without afterburner
- Combusters: annular
- Turbine: 2 stages
- Maximum thrust: 2,850–3,100 lbf (12.7–13.8 kN) (dry)
- Overall Pres Ratio: 8.3
- Air Mass Flow: 44-53 lbs/sec
- Turbine Inlet Temperature: 1,470 °F (800 °C)
Key Details
Manufacturer: General Electric
Category: Turbojet Engine
Introduction: 1950s
