Naval Research Lab Says Hydrogen-Powered UAV Flew For Over 26 Hours.
Cleantech (12/1, Sibley) reports that, according to the U.S. Naval Research Laboratory, "an unmanned air vehicle (UAV)" named Ion Tiger, "which runs on hydrogen-powered fuel cells, recently set an unofficial flight endurance record-taking to the sky for 26 hours and one minute." The vehicle has "the ability to carry a four- to five-pound payload," and "features an onboard electric fuel cell propulsion system that boasts quiet operation and high efficiency." The NRL is now "planning to work on increasing the fuel cell power to 1.5 kilowatts to allow for tactical flights and expand the vehicle's flight time to three days. NRL led the fuel cell system development team, which included collaboration from Protonex Technology, HyperComp Engineering, and Arcturus UAV. The program is sponsored by the U.S. Office of Naval Research."
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