Heavy Fuel and Gasoline 4-Stroke UAV Engines

United Kingdom
RCV Engines

Heavy Fuel and Gasoline 4-Stroke UAV Engines

RCV Engines is a specialised manufacturer of small multi-fuel engines for unmanned systems.

RCV’s patented revolving valve combustion system delivers excellent power-to-weight and operates equally well on both gasoline and HF (Heavy Fuel:- Jet-A1, JP5, JP8). This makes it ideal for small fixed-wing UAVs, VTOL multi-rotor UAS and hybrid/power generation applications.

Heavy Fuel UAV Engines
Multi-Fuel UAV Engines

The RCV is in full production and is proven HF compatible. The engine is operating successfully on HF  in many applications around the world.

Sentinel Unmanned UAVThe robust RCV combustion system ensures that starting, handling and power are excellent, and are unaffected by ambient conditions, altitude and variations in fuel composition.  RCV’s engines provide long MTBOs of up to 150 hours for rotary-wing UAVs, 250 hours for VTOL platforms and 500 hours for fixed-wing drones.

RCV engines are supplied complete with exhaust, fuelling system,  ECU and generator mounts, and can also be supplied with the following options:

  • Available in Clockwise or anticlockwise rotation
  • Air or Liquid Cooled
  • Optional Generator or starter/generator.
Rotary UAV Engines

In addition we offer a design facility which allows us to work with you to understand the requirements fully, develop the specification and provide a complete package that meets your needs. This service also extends into the integration of the power-plant into the platform ensuring optimisation of the system.

RCV DF70 Twin Cylinder UAV Engine

70 cc Multi-Fuel 4-Stroke Engine

DF70 Twin Cylinder UAV Engine

The DF70 is a high-performance 4-stroke twin-cylinder UAV engine designed to military specifications for the aerospace market. Suitable for both VTOL and fixed-wing unmanned aircraft, the engine offers superior fuel economy, quiet running and excellent starting reliability.

With a capacity of 70cc and a power output of 4.2kW, the DF70 also features a boxer configuration for minimal vibration, as well as rotation options for either pusher or tractor configurations. A “limp home” mode offers the ability to run the engine on just one cylinder.

DF70LC Liquid-Cooled Twin Cylinder UAV Engine

70 cc Multi-Fuel 4-Stroke Engine

DF70LC Liquid-Cooled UAV Engine

The DF70LC is a liquid-cooled version of the DF70 twin-cylinder multi-fuel UAV engine. Featuring the same high-performance specifications as the DF70, the DF70LC is ideally suited for both VTOL and fixed-wing UAV platforms, with superior fuel economy, quiet running and excellent starting reliability.

The DF70LC twin-cylinder engine was selected for Sentinel Unmanned’s Longreach 70 UAV. Read the case study >

RCV DF35 Single Cylinder UAV Engine

35 cc Multi-Fuel 4-Stroke Engine

DF35 Single Cylinder UAV Engine

The DF35 is a single-cylinder version of the DF70 with a capacity of 35cc and a power output of 2.2kW. Featuring a reduced footprint for small unmanned aircraft applications, the DF35 can be used as a direct replacement for existing 2-stroke engines, providing upgrades in reliability, quality and multi-fuel operation. The DF35 is also available as liquid-cooled variant.

EFI UAV Engine Control System

EFI UAV Engine Control SystemThe EFI Engine Control System is lightweight and compact, weighing in at only 30 grams, and is ideal for controlling a variety of fixed-wing and VTOL UAV engines. It features an integrated fuel system, twin injector drivers with up to three injectors per driver, and twin ignition for dual-spark operation.

An inbuilt data logger and RS232/CAN bus communications provide efficient, easy storage and transfer of data. The EFI Engine Control System comes with an intuitive graphical user interface and field-proven control software.

Learn more: EFI UAV Engine Control System

Custom UAV Engine Development

Custom UAV Engine Development

Our proven process for UAV engine design, development and manufacture can provide you with solutions to meet your engine requirements, based on our unique revolving valve combustion system technology. Our experienced engineers can work with your development team or provide a complete custom solution that encompasses requirements review and prototyping, through to production supply.

Engines can either be manufactured/supplied by RCV, or by the customer under a licensing agreement. 3D CAD data can be made available for installation studies.

Please get in touch to discuss your requirements for custom UAV engine solutions.

Products

EFI UAV Engine Control System

Lightweight System for Controlling UAV Engines with Inbuilt Data Logger

RCV DF70 Twin Cylinder UAV Engine

70 cc Multi-Fuel 4-Stroke Engine

RCV DF35 Single Cylinder UAV Engine

35 cc Multi-Fuel 4-Stroke Engine

Articles

Latest
A Deep-Dive into RCV Engines

RCV Engines have taken a look at their history, delving into why their combustion system and other advantages set their engines apart from other technologies on the market

Sep 19, 2024
ISO Accreditation Achieved for RCV Engines

RCV Engines Ltd has achieved its ISO 9001 (2015), providing its customers with the assurance that it will continue to produce consistent, high-quality services and technology

Sep 13, 2024
RCV Engines Presents its Unique Approach to Engine Design

Dr Brian Mason, a small engine technology specialist from RCV Engines, presented the company’s white paper entitled ‘Rotary Valve 4-Stroke...

Nov 30, 2022
Case Study: Multi-Fuel Engine for Long-Range Unmanned Helicopter

This case study is based on an article authored by RCV Engines, highlighting how their DF70LC multi-fuel engine was incorporated...

Sep 30, 2022
RCV Engines Now Free from Export License Controls

RCV has announced that RCV heavy fuel and gasoline 4-stroke UAV engines have been removed from the export control list

May 13, 2022
25 Years of Rotary Valve Engine Design & Manufacture

RCV Engines, specialized manufacturer of small multi-fuel engines for unmanned systems, is celebrating its 25 year anniversary

Mar 22, 2022
High-Altitude Heavy Fuel Engines for UAVs

RCV Engines’ Technical Director has authored the following article that highlights how the company’s heavy fuel engines for UAVs (unmanned...

Feb 01, 2022
Switchable Multi-Fuel Operation for UAV Engines

RCV Engines has released a technical article outlining the development of switchable multi-fuel technology for their engines for small unmanned...

Oct 27, 2020
Liquid-Cooled UAV Engine Powers New Unmanned Helicopter

RCV Engines, a specialised manufacturer of small multi-fuel propulsion systems for unmanned aerial vehicles (UAVs), has confirmed that their DF70LC...

Apr 03, 2020
RCV Engines Develops High-Efficiency Multi-Fuel Engines for UAVs

RCV Engines, a leading manufacturer of small multi-fuel engines for unmanned aerial vehicles (UAVs), has partnered with Unmanned Systems Technology...

May 09, 2018

Videos

Regional Offices & Locations
RCV Engines Ltd United Kingdom 4 Telford Road, Ferndown Ind. Estate, Wimborne, Dorset BH21 7QL +44 (0) 1202 877044 Contact Website