Patent ID: 8357023

Claim:
A helicopter comprising a body; a main rotor with blades which is driven by a rotor shaft and which is hinge mounted on the rotor shaft, the main rotor being in a plane of rotation at an angle relative to the rotor shaft, a control for moving an angle of incidence of at least one blade of the rotor relative to the angle of incidence of another blade of the rotor cyclically along at least part of a 360 degree rotation path around the rotor shaft, causing a variation in lift force of the blade along at least part of the rotation path and thereby cause the body to be urged in a relatively horizontal direction from a relative position of rest, the control having a control element being movable in a first direction such that the control acts to move the angle of incidence in a first direction, and the control element being movable in a second direction opposite to the first direction such that the control acts to move the angle of incidence in a second direction opposite to the first direction, and including a slider between an actuator and an assembly, and wherein the slider includes a pin, the pin being fixedly mounted on the slider and extending in a direction transverse to a direction of a sliding movement of the slider, the pin being for engaging a ring associated with the assembly, and the sliding movement being transverse to the rotor shaft.