Sky Power International

Our blog

Our blog brings together all current and past Sky Power articles, covering new technical papers, product developments and insights into UAV engines, hybrid propulsion systems and the future of unmanned aviation.

Browse through our articles and discover technical insights from the world of UAV engines and propulsion technology.

Published: August 10, 2026

New technical paper: Hybrid UAV Propulsion Systems for Longer Missions

Battery-powered UAVs are efficient, but their endurance is limited by battery energy density. Sky Power’s new technical paper explains how hybrid UAV propulsion systems can extend range, increase payload capacity and open new possibilities for VTOL, ISR, BVLOS and heavy-lift applications.

Published: July 3, 2026

New Paper: Why Long-Range UAVs Still Need Combustion Engines

As UAV missions demand longer flight times, greater range, and higher payload capacities, combustion engines continue to offer significant advantages over battery-powered systems. Learn why internal combustion and hybrid propulsion technologies remain critical for long-endurance UAV applications.

Published: June 23, 2026

New Paper: Push or Pull Configuration in UAVs – Which Approach Delivers the Best Performance?

The positioning of a UAV propeller has a significant impact on flight performance, engine cooling, sensor integration and overall system reliability. Discover the key differences between push and pull configurations in Sky Power International’s latest white paper.

Published: June 16, 2026

Two-Stroke vs. Wankel Engines for UAVs: Which Propulsion Technology Fits the Mission?

We have published a new technical paper comparing two-stroke and Wankel UAV engines. The paper analyzes propulsion technologies for ISR, tactical and long-range unmanned aerial systems.

Published: March 6, 2026

Why UAV propulsion units should not be a secondary consideration

The propulsion system is the beating heart of every UAV. Learn why choosing a rigorously tested, real-world proven UAV engine from Sky Power International is critical for mission reliability, endurance, and long-term program success.