Rotary wing aircraft rotor blade for helicopters, with static and dynamic balancing weights

摘要

The rotor blade balancing device (6) comprises a static balancing weight divided into masses in two housings (8,9) along the blade span. Dynamic balancing weights are divided into masses in the two housings so as to ensure the dynamic adjustment of the blade whilst conserving the previous static balance. The balance weights are introduced into the housings and extracted from them through a single opening (12) emerging symmetrically relative to the blade pitch centralizing axis (X-X) in the internal end of the housings. This single access opening is sealed by a door (27) which opens in the blade upper or lower surface.