Provided is a quiet redundant urban rotorcraft, commonly known as urban air mobility eVTOL. The quiet redundant urban rotorcraft is designed to perform vertical takeoff and landings powered by two independent electric lifting motors. The lifting force is distributed among counter-rotating, co-axial main multi-bladed rotors and several smaller rotors distributed around the vehicle which provide attitude control during hover and low speed flight. The quiet redundant urban rotorcraft is capable to fly at relatively high horizontal speed by using a dedicated horizontal thrust propeller driven by an electric motor, turbine or internal combustion engine. In high speed flight, the main rotors turn freely, the control electric motors turn off and the attitude control is provided by aerodynamic fixed and moving surfaces. The quiet redundant urban rotorcraft has a low noise footprint and multiple redundancy for safety, while at the same time having a compact configuration for operating area restrictions.
Quiet Redundant Rotorcraft
2020-04-09
Patent
Electronic Resource
English