NORTHWEST UAV

NW-44 EFI Multi-Fuel Engine

NW-44 UAV Engine

Compact Power. Mission-Ready Reliability.

Small Engine. Big Mission Impact. Meet the NW-44 aviation-grade engine delivering 3.5 hp for Group II UAVs (18-34 kg). Lightweight (‹10 lbs.*), multi-fuel capable (gasoline or heavy fuel), with 400-500+ hour TBO and minimal maintenance for reliable, long-endurance missions. Approved for export EAR99.

Design Objectives

PERFORMANCE
Delivers 3.5 hp with unmatched reliability and fuel efficiency.
LIFECYCLE
Reduced lifecycle costs through extended service intervals.
ENDURANCE
Specialized fuel injection system for dramatically enhanded system reliability.
WEIGHT
Lightweight, scalable for use in various classes of multi-fuel aircraft.

Key Technical Features

The NW-44 is one of the most configurable small UAV engines on the market today.

43.6 cc, electronically fuel injected (EFI), air cooled with Active Cylinder Head Temperature (ACHT) control.

Gasoline and heavy-fuel (JP-5, JP-8, Jet-A). Full authority digital engine controller with electronic fuel injection.

Optimized for Group II aircraft payload and endurance profiles. Maximum continuous speed 7500 RPM. 3.5 Hp.

TBO 400-500 hours (estimated). Extended mission duration with minimal specific fuel consumption.

High Time Between Overhaul (TBO) with reduced maintenance requirements.

Suitable for both long-endurance aircraft integration and auxiliary/portable power generation.

NOTE: Actual performance will vary depending on PMU configuration, application, propeller, fuel type, oil, environmental conditions, type of operation, direction of rotation, generator losses, and cowling configuration. Engine application is dependent on airframe factors including: Aerodynamics, propeller, and operational concept. Fuel is subject to regional and seasonal variations. The user is responsible for testing, validating, and defining operational limits with their local fuel source. Core weight = EMU with ACHT. Core weight + avionic weight = total PMU weight. No prop, no prop hardware, no manual engine start interface. Please contact NWUAV for guidance.

Northwest UAV | Military Proven Propulsion Solutions!