ADX 390

Take your UAV capabilities to the next level with the ADX 390—a boxer four-cylinder, 390cc engine designed to deliver extraordinary power in an ultra-lightweight package. Built on the proven foundation of the ADX 195 twin engine, the ADX 390 unleashes enhanced performance while keeping your aircraft nimble and efficient.

Effortless Power, Remarkable Lightness

Incredibly Low Weight: Achieve maximum power without burdening your UAV—enjoy longer flight times and greater payload flexibility.
High-Output Design: Whether for heavy-lift tasks or high-speed missions, the ADX 390 packs more than enough power to rise to any challenge.

Engineered for Optimal Reliability

CNC-Machined Crankcase: Experience a more rigid build and even lower vibration levels compared to previous models.
Boxer Four-Cylinder Layout: Benefit from smoother operation and balanced power delivery, ensuring consistent performance.

Customized to Meet Your Needs

Dual Spark Head Option: Elevate safety and reliability with redundant ignition capabilities.
Customizable Crankcase & Cylinder Head: Adapt the engine architecture for specialized cooling, performance enhancements, or unique mission requirements.
Optional Sensor Positions: Seamlessly integrate additional sensors to capture critical data and optimize your UAV’s performance.

Power That Won’t Weigh You Down

Stop compromising between power and weight. With the ADX 390, you get both—guaranteeing the ultimate edge for your UAV. Ready to unlock the next level of flight performance? Contact us today and discover how the game-changing ADX 390 can transform your UAV operations.

Displacement	390 ccm
Weight	ADX 390 8200grams/ with starter 9740grams/ with starter and generator 101/6/8 -10000grams including ignition) with starter and generator 101/14/20 10600grams including ignitions) Weight of the exhaust system shown in the gallery is 850grams
Bore	52mm
Stroke	38mm
RPM range	1000-8500 ot/min
Max launching acceleration load	20G
Ignition	processor controlled two separate units
Spark plugs	NGK CM-6 optionally Denso U20M-U
Spark plug electrodes gap	0,5-0,7mm
Intake system	Reed valves
Recommended oil	Full synthetic oil for two stroke air cooled engines
Recommended fuel	Automotive gas BA 95 or higher
Fuel mixture oil:gas	1:30(break-in) 1:40 (normal run)
Carburettor	Walbro WB-27
Normal/Max CHT	160/200 degrees of Celsius
Fuel consumption	3,8l/hr @ 3500 RPM 40x16 twinblade propeller
Propeller configuration	Tractor or Pusher
MTBF	280hrs

ADX 390 engine without starter 3D shell in STEP

ADX 390 engine with starter 3D shell in STEP

ADX 390 3-view drawing in PDF

ADX 390 witrh starter 3-view drawing in PDF

DATASHEET ADX 390

Rotation Options: Our engines can be customized to operate in either a clockwise (CW) or counterclockwise (CCW) rotation. This provides flexibility to choose the rotation that best suits your specific system requirements.
Exhaust system: You can choose betwen standard SSA compact and direct mount systém or specific solution.
Double Spark Plug Heads: Engines can be equipped with double spark plug heads to increase safety and reliability. This feature ensures that your engine continues to operate in the event of a spark plug failure, offering uninterrupted performance and peace of mind.
Additional Sensor Mounting Position: Engines could be equipped with an additional sensor mounting position on either the cylinder heads or crankcase. This provides the flexibility to tailor the engine to your exact needs, allowing you to achieve optimal performance and functionality.
Cylinder Head Redesign: Our engines can be completely redesigned to provide easier cooling or fit into your cowl space. This feature ensures that your engine not only performs at its best, but also fits seamlessly into your system.
Electric Starter: Engines could be equipped with an electric starter for easy and efficient start-up. This feature saves time and effort, allowing you to focus on your work and get the job done quickly and efficiently.
Automatic Deco Valves: Engines could be equipped with automatic deco valves, making restarts in the air easy and stress-free. This feature allows you to focus on your flight and enjoy a smoother and more comfortable experience.
Power Generator: Engines can be designed with brushless generators that provide superior power to meet your specific needs. This feature ensures that you have the power you need to operate all of your equipment, no matter what the situation.
Custom-Made Backplate: Engines could be designed with a custom-made backplate that offers a mounting point and design tailored to your specific needs. This feature ensures that your engine fits seamlessly into your system, providing optimal performance and functionality.
Electronic Fuel Injection: Engines could be equipped with electronic fuel injection for improved efficiency and performance. This feature ensures that you get the most out of your engine, with increased fuel economy and power.