EFI, Mil-Spec & Rotary UAV Engines / UAV Servos Actuators / Fuel System Parts

HFE International LLC Visit Website

HFE International is a leading manufacturer and developer of high-reliability fuel injection engines, rotary engines and ground support equipment for drones and UAVs (unmanned aerial vehicles).

Our gasoline and multi/heavy fuel unmanned propulsion solutions are ideal for a wide variety of small UAVs, and are used throughout the world by the U.S. Armed Forces and other high-profile customers. As proof of our ongoing commitment to quality, we are ISO 9001:2015 certified and continually strive to improve customer satisfaction through our superior-quality products and engineering services.

DA70 GenPod – UAV Engine

Easily field-swappable EFI engine for UAVs

HFE DA70 GenPod - UAV EngineThe DA70 GenPod is an easily field-swappable engine that dramatically reduces operational downtime. The entire system, including electronics, fuel pumping system, EFI, ignition, and motor mount isolation, can be removed by simply flipping two clips, saving significant time and costs during scheduled maintenance.

The DA70 GenPod can be integrated into new UAV designs with a minimum of effort, requiring only a power supply, fuel tank connection and throttle position signal. The built-in starter requires only a 5V signal, providing up to 500 W of electrical power for the avionics system and featuring integrated power management.

All GenPod engines include a silent muffler set that reduces acoustic signature and acoustic non-detectability altitude. The unit is available in pusher or tractor configuration, and different cowling options are available upon request.

Inquire about the DA70 GenPod > 

EFI Engines for UAVs

Highly efficient, UAV electronic fuel injected engines

HFE DA35 UAV engineThe DA series of UAV engines features state-of-the-art electronic fuel injection technology for high-efficiency operation, and a special magnet configuration in the propeller hub for easy starting. The built-in engine control module (ECM) can be powered by a single 3-cell Lipo battery of capacity 1500mah or greater, with a total power draw of only 12 watts (1 amp) at full throttle.

All DA engines for UAVs have been tested from sea level to 10,000 ft altitude, and at temperatures ranging from 10°F to 120°F

HFE DA50 EFI UAV engine

DA50 EFI Engine

HFE DA70 EFI UAV engine

DA70 EFI Engine

HFE DA100 EFI UAV engine

DA100 EFI Engine

HFE DA120 EFI UAV engine

DA120 EFI Engine

HFE DA150 EFI UAV engine

DA150 EFI Engine

HFE DA170 EFI UAV engine

DA170 EFI Engine

Comparison & Specifications:

Power RPM Range
DA35 2.2 kW (3 HP) 2000 – 8000 RPM
DA50 3.5 kW (4.5 HP) 2000 – 8000 RPM
DA70 4.2 kW (5.6 HP) 2000 – 7000 RPM
DA100 5.5 kW (7.3 HP) 1500 – 7000 RPM
DA120 6.8 kW (9.2 HP) 1500 – 6800 RPM
DA150 7.8 kW (10.5 HP) 1500 – 7000 RPM
DA170 9.5 kW (13 HP) 1800 – 6500 RPM

View our range of EFI Engines for UAVs > 

HFE DA35 Mil-Spec UAV engineMil-Spec UAV Engines

MIL-STD-810 tested EFI engines for UAVs

HFE International offers mil-spec versions of its DA engine series for UAVs, featuring a state-of-the-art fuel injection system that has been in real-world service on over 700 aircraft and has flown more than 67,000 hours in a wide range of environments around the world.

All mil-spec DA UAV engines have been tested to MIL-STD-810, at altitudes up to 20,000 ft and at temperatures ranging from -10°F to 120°F.

HFE DA50 EFI Mil-Spec UAV engine

DA50 Mil-Spec Engine

HFE DA70 Mil-Spec UAV engine

DA70 Mil-Spec Engine

HFE DA100 Mil-Spec UAV engine

DA100 Mil-Spec Engine

HFE DA120 Mil-Spec UAV engine

DA120 Mil-Spec Engine

HFE DA150 Mil-Spec UAV engine

DA150 Mil-Spec Engine

HFE DA170 Mil-Spec UAV engine

DA170 Mil-Spec Engine

View our range of Mil-Spec Engines > 

AIE Multi-Fuel Rotary Engines

AIE Engines for Drones & UAVs

AIE Multi-Fuel Rotary UAV Engines

HFE International is an official supplier and service provider of the Advanced Innovative Engineering (AIE) range of Wankel rotary engines for UAVs and drones. AIE’s rotary propulsion systems deliver superior power and efficiency in a smaller, lighter, low-vibration package, making them ideal for SWaP-constrained unmanned aircraft.

The engines feature AIE’s revolutionary SPARCS cooling system, resulting in greater reliability, efficiency and engine lifespan. Full electronic engine management removes the need for mechanical control of the engine, making integration quicker and easier.

40S 5 BHP

  • Engine Core Weight: 4.4 lb (2 kg)
  • Engine Power Output: 5 bhp (3.7 kW)
  • Fuel Type: AVGAS/Gasoline, Heavy
  • Fuel Consumption: 0.51 – 0.57 lb/bhp/hr (310 – 350 g/kWh)
AIE 80S Rotary UAV Engine

80S 15 BHP

  • Engine Core Weight: 11 lb (5 kg)
  • Engine Power Output: 15 bhp (11.2 kW)
  • Fuel Type: AVGAS/Gasoline, Heavy
  • Fuel Consumption: 0.51 – 0.57 lb/bhp/hr (310 – 350 g/kWh)
AIE 80S Rotary UAV Engine

225CS 40 BHP

  • Engine Core Weight: 22 lb (10 kg)
  • Engine Power Output: 40 bhp (30 kW)
  • Fuel Type: AVGAS/Gasoline, Heavy
  • Fuel Consumption: 0.51 – 0.57 lb/bhp/hr (310 – 350 g/kWh)
AIE 225CS Rotary UAV Engine

650S 120 BHP

  • Engine Core Weight: 62 lb (28 kg)
  • Engine Power Output: 120 bhp (3.7 kW)
  • Fuel Type: AVGAS/Gasoline, Heavy
  • Fuel Consumption: 0.51 – 0.57 lb/bhp/hr (310 – 350 g/kWh)
AIE 650S Rotary UAV Engine

View the AIE range of Rotary UAV Engines > 

Battlefield Endurolink Fuel System Parts

HFE International provides a range of Battlefield Endurolink aerospace-grade couplings, fittings and valves for UAV fuel systems. These compact and lightweight parts are designed to withstand the harsh conditions of demanding UAV applications, and are compatible with all major fuels including gasoline, diesel, kerosene, JP5 and JP8.

Constructed from lightweight anodized aluminium and nickel-plated brass, with GFLT seals, Battlefield Endurolink UAV fittings have been proven with over a million successful flight hours.

Battlefield Endurolink Fuel System Parts

Battlefield Endurolink Fuel System Components

Battlefield aerospace-grade valves for UAV engines

Battlefield aerospace-grade fittings for UAV engines

View the Battlefield range of Fuel System Parts >

Volz UAV Servos Actuators

Volz UAV servo actuators are high-precision units designed to withstand the high vibration and extreme temperatures of unmanned aircraft environments, and are ideal for critical actuation systems such as UAV engine throttles. The DA actuator series features all-steel gear trains and are fully programmable.

The DA 13 and DA 14 series of 13mm actuators have the same dimensions and are fully interchangeable.

DA 13-05-32

  • Stall torque 20 Ncm/28 oz.in.
  • Speed 620 °/sec
  • Intermittent fast response for low continuous load requirements

Volz servo DA 13-05-32 precision actuator

DA 13-05-60

  • Stall torque 30 Ncm/28 oz.in.
  • Speed 330 °/sec
  • Power-optimized for higher force requirements

Volz servo DA 13-05-60 precision actuator

DA 14-05-32

  • Stall torque 20 Ncm/28 oz.in.
  • Speed 620 °/sec
  • EMI/RFI shielding and watertight IP-67 construction

Precision UAV actuator

DA 14-05-60

  • Stall torque 30 Ncm/28 oz.in.
  • Speed 330 °/sec
  • EMI/RFI shielding and watertight IP-67 construction

UAV engine throttle actuator

DA 15-05-60 X.ST

  • Stall torque 30 Ncm/28 oz.in.
  • Speed 310 °/sec
  • Rugged watertight and saltwater-resistant aluminium alloy casing

Volz high torque all steel gear servo

View the Volz range of UAV Servo Actuators >

EFI, Mil-Spec & Rotary UAV Engines / UAV Servos Actuators / Fuel System Parts
HFE International LLC Contact Directly Follow Company
HFE International LLC HFE International
8060 E. Research Ct., Tucson, AZ 85710, USA
+1 520.587.0818 [email protected] Visit Website