Innovative Heavy Fuel Engines for UAVs
50cc Heavy Fuel Engine 3.7 hp two-stroke single-cylinder engine for tactical UAVs
50cc Heavy Fuel Engine

3.7 hp two-stroke single-cylinder engine for tactical UAVs

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50cc Heavy Fuel Engine

The Orbital 50cc Heavy Fuel Engine utilizes an air-cooled two-stroke single-cylinder design with a low vibration signature, and features Orbital UAV's unique proprietary FlexDI technology that utilizes a spray-guided direct fuel injection system, atomizing the fuel with injected air. Weighing just 3 kg, the innovative propulsion system runs on a range of heavy fuels (JP-5, JP-8, Jet-A and Jet-A1) as well as gasoline, and provides both inflight and post-flight diagnostics.

The 50cc Heavy Fuel Engine is battlefield-proven, with over 150,000 service hours in the field with Insitu. This engine is the propulsion system of choice for the Insitu ScanEagle 3, a long-endurance tactical ISR drone in service with the U.S. and Australian armed forces.

Specifications:

Power 3.7 hp (2.8 kW) at 6500 RPM
Electrical Power ~250W
Weight ~3kg (dry)
Fuel Consumption 340 g/kWh typical
Max Operating Altitude 20,000 ft
Operating Temperature -30 to 55oC
Launch Acceleration ~20g for 30 ms
Current TBO 300-500 hrs