Airbreathing, monofueled, stored-energy, and solar-rechargeable propulsion systems have been studied for the HI SPOT Long Endurance Drone Airship, providing constant-level electrical power as well as variable aerodynamic thrust to maintain position in winds varying from 15 to 100 knots at high altitude. A hydrogen fueled airbreathing engine is optimum for mission lengths up to 30 days or more. (Author)
Propulsion Options for the HI SPOT Long Endurance Drone Airship
1979
60 pages
Report
No indication
English
Aircraft , Jet & Gas Turbine Engines , Reciprocation & Rotating Combustion Engines , Propulsion systems , Airships , Surveillance drones , Remotely piloted vehicles , Steam turbines , Rankine cycle , Liquid hydrogen , Reciprocating engines , Turbosuperchargers , Aviation gasoline , Propellers(Aerial) , Solar cells , Fuel cells , Electric motors , Stationkeeping , Parametric analysis , Trade off analyses , Over the horizon detection , Targeting , HI SPOT airships
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