RCV’s innovative revolving valve combustion technology provides outstanding power-to-weight ratios and operates efficiently on both gasoline and heavy fuels (such as jet-A1, JP5, and JP8). This versatility makes it an excellent choice for small fixed-wing UAVs, VTOL multi-rotor UAS, and hybrid power generation applications.
The RCV engine is currently in full-scale production and has demonstrated compatibility with heavy fuels across various global applications.
The robust combustion system of RCV ensures reliable starting, handling, and power output, remaining unaffected by environmental conditions, altitude, or fuel composition variations. RCV engines boast impressive mean time between overhauls (MTBO), achieving up to 150 hours for rotary-wing UAVs, 250 hours for VTOL platforms, and 500 hours for fixed-wing drones.
RCV engines come fully equipped with exhaust systems, fueling mechanisms, electronic control units (ECUs), and generator mounts.Additional options include:
- Available in clockwise or counterclockwise rotation
- Air or liquid cooling options
- Optional generator or starter/generator configurations.
Additionally,we provide a design service that collaborates with clients to thoroughly understand their requirements,develop specifications,and deliver a extensive package tailored to their needs. This service also includes the integration of the power plant into the platform, ensuring optimal system performance.
RCV DF70 Twin Cylinder UAV Engine
70 cc Multi-Fuel 4-Stroke Engine
The DF70 is a high-efficiency 4-stroke twin-cylinder UAV engine engineered to military standards for the aerospace sector. It is suitable for both VTOL and fixed-wing unmanned aircraft, offering exceptional fuel efficiency, quiet operation, and reliable starting.
With a displacement of 70cc and a power output of 4.2kW, the DF70 features a boxer configuration that minimizes vibration, along with rotation options for either pusher or tractor setups.A “limp home” mode allows operation on a single cylinder if necessary.
Discover more: DF70 twin Cylinder UAV Engine
DF70LC liquid-Cooled Twin Cylinder UAV Engine
70 cc Multi-Fuel 4-Stroke Engine
The DF70LC is a liquid-cooled variant of the DF70 twin-cylinder multi-fuel UAV engine. It shares the same high-performance specifications as the DF70, making it ideal for both VTOL and fixed-wing UAV platforms, with enhanced fuel efficiency, quiet operation, and reliable starting.
The DF70LC twin-cylinder engine was chosen for Sentinel Unmanned’s Longreach 70 UAV. Read the case study >
Learn more: DF70LC liquid-Cooled Twin Cylinder UAV Engine
RCV DF35 Single Cylinder UAV Engine
35 cc Multi-Fuel 4-Stroke engine
The DF35 is a single-cylinder variant of the DF70, featuring a 35cc displacement and a power output of 2.2kW. Its compact design is perfect for small unmanned aircraft applications, serving as a direct replacement for existing 2-stroke engines while enhancing reliability, quality, and multi-fuel capabilities. The DF35 is also available in a liquid-cooled version.
Learn more: DF35 Single Cylinder UAV Engine
EFI UAV Engine Control System
The EFI Engine Control System is lightweight and compact, weighing just 30 grams, making it ideal for managing various fixed-wing and VTOL UAV engines. It includes an integrated fuel system, dual injector drivers capable of supporting up to three injectors each, and dual ignition for enhanced spark operation.
An integrated data logger and RS232/CAN bus communications facilitate efficient data storage and transfer. The EFI Engine Control system features an intuitive graphical user interface and proven control software.
Learn more: EFI UAV Engine Control System
Custom UAV Engine Development
Our established process for UAV engine design, development, and manufacturing can provide tailored solutions to meet your specific engine needs, leveraging our unique revolving valve combustion technology. Our skilled engineers can collaborate with your development team or offer a complete custom solution that includes requirements assessment and prototyping, leading to production supply.
engines can be produced and supplied by RCV or manufactured by the customer under a licensing agreement. 3D CAD data can be provided for installation studies.
Please contact us to discuss your needs for custom UAV engine solutions.
