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Skyeton launched a hydrogen-powered variant of its Raybird UAV for the Ukrainian military after two years of R&D. The hybrid model, using hydrogen fuel cells, has a flight endurance of 12 hours and a higher operational ceiling than the internal combustion version, which has a maximum of 28 hours.

The Raybird is designed for intelligence, surveillance, target acquisition, and reconnaissance missions lasting over 10 hours. Hydrogen fuel cells offer better energy density than lithium-ion batteries but have challenges like containment and flammability. New airframe architecture was developed to accommodate the fuel.