Drone to rotors counter-rotating, the thrust of the rotors is applied on a universal joint 'a' located between the planes of rotation of the rotors

摘要

The drone has egg-beater rotors placed in a drone body (1) and applying thrust forces on a gimbal joint. The gimbal joint is connected to a push bar situated between rotational planes of rotors. The gimbal joint enables back and forth movement of the rotors around two axes in a separate and simultaneous manner to position the center of thrust forces of the rotors near center of gravity of the drone.