Patent ID: 9745056
Date: 2017-08-29
CPC Classifications: B64C,Y10T

Claim:
1. A main rotor blade assembly comprising: a spar having a main section; a main core positioned adjacent a trailing side of the main section of the spar; a tip assembly including a main tip core and a tip end pocket core, the tip assembly being positioned adjacent an outboard end of the main core and the spar such that the main tip core is substantially aligned with a longitudinal axis of the main core and the tip end pocket core is substantially aligned with a longitudinal axis of the spar, wherein at least a portion of both the main tip core and the tip end pocket core comprises a high density core; and an upper composite skin and a lower composite skin, wherein both the upper composite skin and the lower composite skin extend over the spar, the main core, the main tip core, and the tip end pocket core, and at least a portion of the upper composite skin and the lower composite skin has a thickness sufficient to be load bearing.