DA 70 EFI MIL SPEC UAV Engine by HFE International features state of the art electronic fuel injection.

This mil spec version provides a fuel injection system which is currently in service on over 700 aircraft and more than 67,000 flight hours in various environments around the world.

The system is tested to 20,000 ft altitude and temperatures ranging from -10°F to 120°F. 

It follows the test methods under MIL-STD-810, testing out the majority of the laboratory methods available.

Alternator System Options

200W Power Management Unit

This 3 phase brushless alternator direct drives on the engine crankshaft. The stator mounts to the crankshaft casing. The rotor spins on the crankshaft.

The PMU provides three lines with a chosen voltage in the range: 12 – 15 VDC at 15A or 200W max and 4.8 – 7 VDC at 7A or 42W max.

Configurable with LiIon, LiPo, LifePO4, SLA, NiCad, NiMH, and Lead Acid Battery.

24 V option available, contact HFE Int. for info and pricing.

500W Starter Alternator

This 3 phase brushless alternator direct drives on the engine crankshaft. The stator mounts to the crankshaft casing. The rotor spins on the crankshaft.

The system can be paired with a 500 W Power Management Unit with an integrated starter controller, allowing the engine to start remotely. The PMU provides three lines with a chosen voltage in the range:

24 – 28 VDC at 12.5A or 350W max, 12 – 15 VDC at 9A or 108W, and 4.8 – 8 VDC at 8A or 42W.

Configurable with LiIon, LiPo, LifePO4, SLA, NiCad, NiMH, and Lead Acid Battery.

DA 70 EFI Mil Spec UAV Engine Downloads

DA 70 EFI Data Sheet

DA 70 EFI Mil Spec Owner’s Manual

DA 70 EFI MIL SPEC UAV Engine WOT Graph

About HFE International

HFE International develops and manufactures high end propulsion systems for UAV’s, drones, unmanned systems, and ground support equipment. These propulsion systems include fuel-injection and rotary systems with gasoline and multi/heavy fuel operation.

Founded in 2010, the company’s aim was to address the growing demand for reliable, small engines at an affordable price point. With over 1,000 units sold – at 25% the cost of the closest competitor – HFE engines are in use throughout the world including use by the US Armed Forces.