Wirth Research has unveiled the design of its tilt-rotor, vertical take off and landing (VTOL) drone. The company claims its all-new Unmanned Aerial System (UAS) will be the first in the world to use lightweight hydrogen fuel cells as its primary energy source, for a combination of long range and environmentally-friendly performance. Why run with hydrogen power instead of pure electric? To deliver six hours of flight time with a full payload, Singapore-based HES, will
Hydrogen power to give VTOL drone six-hour endurance
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