ZERO-FASTENER FLUSHMOUNT BALANCE WEIGHT SYSTEM PRESERVING ROTOR-BLADE TIP WITH INTEGRAL TUNING WEIGHT RETENTION FEATURE

摘要

The present invention includes a balancing system (300) that includes a weight box (302), mounted substantially within the rotor-blade spar (324), flush with a rotor-blade spar outer surface (326), operably accessible from a rotor-blade tip (332), and retained within the rotor-blade spar by a weight-box retention pin (304), one or more weight-box contact surfaces (328) bonded to a rotor-blade-spar inner surface, or a weight-box lip (320) providing a bearing contact with an edge of a spar rotor-blade spar cutout (325); and a weight package (306) attached to the weight box, the weight package including a weight-box cover, two or more weight guide-rods (314) attached to the weight-box cover, wherein one of the two or more weight guide-rods is positioned forward of a pitch change axis or center of twist and wherein one of the two weight guide-rods is positioned aft of the pitch change axis or center of twist, and one or more balance weights (316) mounted on the weight guide-rods.