Patent ID: 8727265
Filing Date: 2014-05-20
Classification: B64C

Abstract:
1. A helicopter comprising: at least one main rotor, and a tail boom extending along a longitudinal axis, said tail boom being provided with at least one anti-torque device, wherein at least one cycloidal rotor with individual airfoil blades is provided, said at least one cycloidal rotor extending along said longitudinal axis of the tail boom and being driven to rotate for anti-torque around said longitudinal axis with a controllable rotational speed, and the radius of the main rotor is greater than a length of the cycloidal rotor blades, and wherein at least one rotating cylinder is provided, said rotating cylinder extending at least partly along said same tail boom and rotating inside the cycloidal rotor with an axis of rotation that is eccentrically arranged with respect to an axis of rotation of the cycloidal rotor.