Liquid Hydrogen Flight Tank for Unmanned Aerial Vehicles

·         Advanced cryogenic liquid hydrogen reactant storage system enables long endurance fuel cell powered unmanned vehicles

·         System features:

·         Liquid hydrogen reactant storage enables 72-hour continuous flight operations

·         Contains 27 percent of the system’s weight in hydrogen

·         Scalable to larger vehicles

·         Specific energy is an impressive 2,500 W-hr/kg for Ion Tiger UAV with PEM fuel cell

·         Turn-key liquid hydrogen generation, storage, and delivery system supports base refueling operations and testing

·         UAV applications:

·         Intelligence, surveillance, reconnaissance

·         Navy surface ship decoys

·         Targets

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Ion Tiger fuel cell UAV –
photo courtesy of
Naval Research Laboratory

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Provides significant increase in energy storage (3x) over compressed gaseous hydrogen