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.
LF90 Thunderbolt Turbojet Engine

Technical Parameters


Maximum Thrust 900N
Thrust-to-weight Ratio ≥7
Flight Speed 0~0.85Ma
Flight Altitude 0~12000m (above sea level)
Fuel Consumption Rate 0.126Kg/(N·h)
Generator Power 28V,200W
Speed 60000r/min
Dimensions Maximum outer diameter φ235mm,length 514mm
Dry Weight 12.1 Kg
Fuel Used RP-3、JAT A
Lubrication Method Fuel + 3% Lubricant
Starting Envelope Starting Altitude: 0~6000m
Starting Speed: 0~0.6Ma
First Overhaul Life 50h or 200 starts

LF90 engine. Designed with a thrust of 900N, it 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.

Air intake device: annular inner support type, integral casting casing, with four support plates and a flow straightening cone.
Compressor: 1-stage centrifugal compressor
Combustion chamber: short annular combustion chamber
Turbine: 1-stage axial turbine
Tail nozzle: non-adjustable convergent type
Control system: electronic control system
Starting method: started by a starter generator installed in front of the compressor and an ignition plug
Lubrication system: open lubrication system, lubricating medium is fuel + 3% lubricating oil

Other Content


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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.

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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