Abstract: The electric propulsion system of Unmanned Aerial Vehicles (UAV) is shifting from open propeller to the shrouded or ducted propeller due to its several advantages over open propellers. Numerous efforts and works have been made to improve the efficiency of the ducted propeller since its introduction in the 1930s. There was a significant increase in flight time due to increase in propulsive efficiency. One factor taken in consideration for overall efficiency of a UAV is its flight time. There has been much research and work on optimization of UAV to increase the flight time, either through minimizing the weight/introducing composite materials or by improving the efficiency of the electronic system or both. This work is an attempt to develop an onboard electricity generation system through an efficient duct equipped with a generator-turbine assembly. This is to increase the flight time without reducing the overall efficiency of the Unmanned Aerial Vehicle (UAV).
Keywords: Re-charging while flying, dynamo, ducted propeller, increased flight time, long range, high endurance, onboard power generation, increased overall efficiency and FM.
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