United Engine Corporation (UEC), part of Rostec, showcased its latest propulsion system developments for light helicopters, hybrid aircraft and various categories of drones at Dubai Air Show 2025.
One of the key products on display is the VK-650V engine, a power system developed entirely in Russia to meet the growing demands of the 2-4 tonne helicopter market.
The VK-650V received type certification in Russia in December 2024 and is already available in versions replacing imported parts.Ansat helicopterFlight testing began with the device mounted on . In September, we successfully supported the flight of Russian Helicopters’ utility helicopter, marking an important step forward in the technological independence of the Russian aviation industry.
UEC President Aleksandr Grachev emphasized that this new engine will be one of the most important projects in the field of light aviation:
“The VK-650V engine is in high demand in the largest segments of the market. It was developed in a short period of time, is ready for mass production and has already proven its reliable operation in Ansat. We are confident that it will completely replace foreign engines in all target helicopters and will also be applied in future helicopters and promising UAVs (including foreign models).”
The engine features low fuel consumption, high durability of key components and an advanced digital automatic control system. It delivers 650 hp in takeoff mode and reaches 750 hp in emergency situations.
Hybrid systems and new drone engines
Using the VK-650V technology base, UEC experts have also developed a 500 kW hybrid power unit (HPU) combining a gas turbine and an electric motor. The system is designed for transport drones, air taxis, VTOLs or ultra-short takeoff and landing aircraft.
Additionally, a 400 kW turbine generator to be mounted on next-generation hybrid aircraft was also unveiled.
UEC also introduced a 40-150 kgf small turbojet engine and the RH50 turbogenerator for the first time at this Dubai event. These engines feature high fuel efficiency, simple lubrication systems, and low weight, making them suitable for a variety of UAV platforms.
The RH50 uses kerosene as fuel and converts turbine combustion energy into electricity through a connected generator. It is currently already being used on Russian drones of various sizes and designs.
Source and image: Rostec. This content was created with the help of AI and reviewed by our editorial team.
