Patent ID: 8002604

Claim:
A toy helicopter comprising a body; a motor in the helicopter, a battery for powering the motor, and a receiver for communicating signals between the motor and a separate remote controller, a main rotor with blades which is driven by a rotor shaft and which is hinge-mounted on this rotor shaft, such that the angle between the plane of rotation of the main rotor and the rotor shaft may vary; a control for moving the 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, and such that for first lift force developed by the main rotor, the helicopter is airborne, and including an element for permitting the helicopter to travel on a surface when the main rotor develops a second degree of lift force, and the main rotor having at least two propeller blades, wherein the propeller blades have a first longitudinal axis, and including an auxiliary rotor mounted such that rotor elements of the auxiliary rotor have a second longitudinal axis, and wherein the longitudinal axis of the rotor elements of the auxiliary rotor is located within an angle of 5 to 25 degrees, preferably approximately 10 degrees, with the longitudinal axis of one of the blades of the main rotor.