Hydrogen-powered Hycopter quadcopter could fly for 4 hours at a time

When people suggest possible uses for electric multicopter drones, it frequently seems like they’re forgetting something – presently, most such aircraft can only fly for a maximum of around 25 minutes per battery charge. Horizon Energy Systems, however, is developing a quadcopter that should do a lot better. Known as the Hycopter, the fuel cell-powered drone is hoped to be capable of 4-hour flight times once completed.

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