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Hydrogen Fule Cell Propulsion for Long Endurance Small UVAs
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2011
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Space VehicleHydrogen Energy TechnologyElectrical EngineeringChemical PropulsionEngineeringAerospace EngineeringSolar Powered AircraftHydrogen TransportHydrogen Fuel CellsHybrid Electric VehicleFuel CellsHybrid VehiclePropulsionHydrogenAerospace PropulsionDevelopment ProcessAir Vehicle System
Hydrogen fuel cells are demonstrated as the propulsion system for long-endurance, small, electric unmanned air vehicles (UAVs). Flight times of >24 hours were demonstrated for the 35-lb Ion Tiger fuel cell UAV while carrying a 5-lb payload. This paper describes the design criteria and development process used to meet these performance goals, including setting the specifications for the vehicle, fuel cell, cooling, and fueling systems.