LF40 Thunderbolt Turbojet Engine


The LF40 Thunderbolt turbojet engine is mainly used in power systems for target drones, cruise missiles, and loitering munitions. It can also be used in civilian light aircraft, gliders, and model aircraft. It features light weight, high thrust-to-weight ratio, high cost-effectiveness, stable and reliable operation, high integration, and convenient maintenance. It is the best micro-engine of its class in China.
LF40 Thunderbolt Turbojet Engine

Technical Parameters


Maximum Thrust 400N
Thrust-to-weight Ratio ≥10
Flight Speed 0~0.8Ma
Flight Altitude 0~10000m (above sea level)
Fuel Consumption Rate 0.147Kg/(N·h)
Generator Power 12V,200W
Speed 97000r/min
Dimensions Maximum outer diameter φ147mm,length 305mm
Dry Weight 3.3Kg
Fuel Used RP-3
Lubrication Method Fuel + 3% lubricating oil
Starting Envelope Starting Altitude: 0~4500m
Starting Speed: 0~0.35Ma
First overhaul life 50h

Other Content


LF90 Thunderbolt Turbojet Engine

The LF90 engine, designed with a thrust of 900N, features stable and reliable performance, high integration, good high-altitude performance, convenient maintenance, and high cost-effectiveness. It is mainly used in small and medium-sized UAVs, cruise weapons, and air-launched decoys.

LF125 Thunderbolt Turbojet Engine

The LF125 engine, designed to deliver 1250N of thrust, is characterized by its stable and reliable performance, high integration, excellent high-altitude performance, convenient maintenance, high cost-effectiveness, and a highly precise control system with fast response times, enabling effective control of the engine in various complex operating environments. It is primarily used in small and medium-sized unmanned aerial vehicles, cruise weapons, and air-launched decoys, and can also be used in civilian light aircraft and gliders.

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