The SP-180 SRE Hybrid from Sky Power is a hybrid propulsion unit based on Wankel engine technology that can be used with both as a combustion engine and an electric power source. This innovative solution uses a Wankel engine with a displacement of 180 cm³ and is supplemented by a starter-generator that enables seamless integration of the two energy systems. The engine offers four operating modes: purely electric, purely combustion, boost mode (combustion and electric at the same time) and charging mode, in which the engine works as a generator to charge the battery.

With a maximum power output of 29.9 hp (22 kW) at 6000 rpm and a torque of 36.8 Nm at 5500 rpm, the SP-180 SRE Hybrid offers a wide speed range from 1500 to 10,000 rpm. This flexibility makes it particularly suitable for various UAV applications, since it can be adapted to different requirements in terms of energy consumption and performance.

Sky Power’s SP-180 SRE Hybrid features an efficient cooling system. The engine housing is cooled by means of water cooling. Another oil cooling system supplies the rotor. This is particularly important to ensure consistent performance.

A standout feature of the SP-180 SRE Hybrid is its power-to-weight ratio, making it an ideal choice for unmanned aerial vehicles (UAVs) that require high performance but are lightweight. The hybrid propulsion system enables longer operating times and a greater range compared to conventional all-electric systems, while also offering the flexibility to switch between the different operating modes as required.

Thanks to its robust design and high-quality components, the SP-180 SRE Hybrid is reliable even in demanding environments and during long flights. The engine is ideal for applications where both high performance and flexibility in energy management are required. Particularly in areas such as surveillance, mapping and infrastructure inspection, as well as in military and research applications, this engine really shows its strengths through its quiet running. The ability to select between the different operating modes offers unrivaled adaptability, which is crucial for the wide range of UAV applications.

This engine requires no special infrastructure to operate, making it suitable for use in remote areas or challenging environments. Maintenance of the SP-180 SRE Hybrid is also straightforward thanks to its modular design and easy component access.