Trial Production of Vertical-axis Wind Turbine Attached Quadcopter for Power-saving Flight

Abstract

The trial production of a new concept quadcopter with a vertical-axis wind turbine (VAWT) is presented for power-saving during forward flight. Continuous transition from hovering to power-saving level flight can be done only by tilting forward of the quadcopter. The VAWT rotates with the downwash of its rotors and against the wind by forward flight, and the lift is generated. The lift of the VAWT during level flight partially supports the weight of the aircraft, and it causes the reduction of power consumption and extend the flight area.