NW-44 EFI Left Side

NWUAV NW-44 EFI Multi-Fuel (Heavy-Fuel/Gas) Engine

NWUAV purpose-built NW-44 EFI Multi-Fuel engine is designed and built for unmanned aircraft systems, high altitude/long endurance aircraft, large scale RC Hobby aircraft and portable power generation.

The NW-44 EFI is one of the most easily configurable small UAV engines on the market today. Purpose built to handle aircraft from approximately 50 to 80 pounds depending on mission requirements. The NW-44 EFI core and subsystem components alleviate ITAR and end of life concerns and are primed to meet pending FAA Certification requirements.

Made in the USA

NW-44 Multi-Fuel Engine Features and Benefits:

NW-44 Multi-Fuel Engine
  • The NW-44 EFI is intended to gain STANAG 4671 and FAA Certification. Typical civilian uses include monitoring climate changes, forest fires and mapping glaciers as well as supporting police, fire and law enforcement bureaus
  • This NW-44 EFI is scalable for use in various classes of aircraft with multiple fuel types and
    incorporates materials not available with COTS engine designs. These advanced materials
    incorporate characteristics needed for lighter weight and better performing engines when utilizing
    heavy-fuels (JP5, JP8)
  • The NW-44 EFI can be scaled with multiple cylinder configurations giving them flexibility beyond designs currently available
  • Incorporating NWUAV’s Fuel Injection System and Variable Pitch Propeller (VPP), the NW-44 EFI will dramatically enhance engine system performance

NW-44 EFI Front View

With all the extra features built into the NW-44 EFI Multi-Fuel engine you will be flying faster and quieter at any altitude.


  • Custom 250 watt direct drive generator with a 6/12/28 volt GCU
  • Waterproof ECU controls engine speed via a direct drive servo mounted to the throttle body
  • Includes: Micro atomizing fuel injector, MAP, barometric pressure, CHT, intake air temperature sensors and heavy-fuel cold start provisions
  • ECU Data Acquisition System (DAQ) contains 1 GB of storage for logging standard engine parameters
  • CAN or Serial Bus communication for external devices such as autopilots and avionics
  • Cylinder head with twin spark plugs fired by dual 25kv ignition coils and features a secured cap provision with appropriate shielding
  • NWUAV’s lightweight muffler integrates proprietary designs, for very low detectability
  • Interfaces with Piccolo Autopilot
  • Multiple cylinder and custom generator output configurations available to fit customer hp, electrical output and overall weight requirements
  • Conformal design mitigates unwanted parasitic drag, which increases fuel efficiency
  • The NW-44 EFI is manufactured entirely in the USA to ensure future engine/system availability

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