Patent ID: 6533549
Filing Date: 2003-03-18
Classification: B64C

Abstract:
A helicopter having a rotor head with pivotal rotor blades connected thereto, the rotor head is connected for rotation with a rotor mast (1) mounted to a transmission housing and driven by a transmission via at least one driving mechanism, and a pitch of the rotor blades, relative to a plane of rotation of the rotor blades, is controlled by a swash plate, a plurality of first control rods (12) and a plurality of actuators (9) associated with the rotor blades;wherein the plurality of first control rods (12) and the actuators (9) are each supported by and rotate with the rotor mast (1), each rotor blade is coupled to a pivoted lever (7), and a mixing lever (11) and a second control rod (8) couple each one of the pivoted levers (7) to one of the plurality of actuator (9) to facilitate adjustment of the pitch of the rotor blades.