Adjustment of track and balance of a multi-blade rotor

A multi-blade rotor of a rotary wing aircraft, the multi-blade rotor comprising:

• a rotor blade that defines a pitch axis, the rotor blade having a pitch-control lever, the pitch-control lever with a pitch horn, the pitch horn forming and defining a bushing accommodation aperture that extends through the pitch horn;
• an exchangeable bushing received within the bushing accommodation aperture such that an outer wall of the exchangeable bushing mates with an inner wall of the bushing accommodation aperture, the exchangeable bushing defining a bearing accommodation aperture therethrough;
• a pitch link rod defining a longitudinal axis, the pitch link rod extending through the bearing accommodation aperture such that the pitch link rod is rotatably coupled to the pitch-control lever via the bearing accommodation aperture;
• wherein the bearing accommodation aperture is located along the longitudinal axis of the pitch link rod such that the longitudinal axis intersects both the inner wall of the bushing accommodation aperture and an inner wall of the bearing accommodation aperture, and wherein the bearing accommodation aperture is located at a predetermined distance from the pitch axis of the rotor blade;
• and
• wherein a pitching angle of the rotor blade is adjusted via setting the predetermined distance of the bearing accommodation aperture to thereby adjust a track and balance of the rotor blade independent from an adjustment of a length of the pitch link rod.