Ukrainian uncrewed air vehicle (UAV) developer Skyeton recently conducted an in-country test flight of its Raybird platform equipped with a hydrogen fuel cell. The company aims to enhance operational efficiency and environmental performance by developing a new fuselage architecture specifically designed for hydrogen integration. This updated design is intended to optimize space and weight distribution for the hydrogen fuel cell system, targeting future serial production. The Raybird UAV is a tactical-class platform primarily used for surveillance, reconnaissance, and light strike missions. It is capable of carrying the company's Remora glide weapon and is designed to achieve flight endurance of over 15 hours in extreme conditions while carrying a payload. Skyeton's CEO, Roman Knyazhenko, emphasizes the importance of creating an aircraft with an electric engine that meets these endurance requirements. The platform is envisioned to serve both defense and civilian applications, showcasing the company's commitment to innovation in the field of UAV technology.