Naval Research Lab Ion Tiger powered by fuel cells breaks endurance record for small, electric UAVs

WASHINGTON, 15 May 2013. Researchers at the U.S. Naval Research Laboratory flew their fuel-cell-powered Ion Tiger unmanned aerial vehicle (UAV) for 48 hours and 1 minute, 16-18 April, by using liquid hydrogen (LH2) fuel in a new, NRL-developed, cryogenic fuel storage tank and delivery system.

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