Patent ID: 6527515
Filing Date: 2003-03-04
Classification: B64C,Y10S

Abstract:
A rotor for rotary wing aircraft having a pair of blade assemblies that extend outwardly from a rotor axis of rotation, each blade assembly comprising:an inboard portion located outboard of the rotor axis of rotation, the inboard portion having an outer blade housing and a pair of separate spar caps each of the spar caps having a length and extending through the inboard portion along their entire length, the spar caps not being bonded to the blade housing along the entire length of the spar caps; an outboard portion located outboard of the inboard portion, the outboard portion having an outer blade housing and a single merged spar portion extending therethrough, the single spar portion being bonded to the blade housing along substantially all of the length of the single spar portion; and a plurality of tip weights within the outboard portion of the blade housing.