Individual blade control device for a helicopter main rotor permits use of a smaller hydraulic pump

摘要

The shaft of the main drive can be driven at a different rpm to the rotor pole. The shaft extends through a hollow space in the rotor pole. A hydraulic pump is arranged coaxially with the rotor pole. The shaft is driven in the opposite rotational direction to the rotor pole. The actuator and lever controlling the angle of incidence of the rotor blade are arranged between connections on the rotating part of the swash plate.