Composite blade

Abstract

A composite blade includes: composite plies laminated in the blade thickness direction, having a predetermined orientation angles with respect to the span direction, and constituting an airfoil section of the composite blade, wherein an outer layer section located on an outer layer side of the airfoil section is divided into a first region and a second region arranged in the span direction; the composite plies include: first outer plies laminated in the first region, second outer plies laminated in the second region, and inner plies laminated on a center side of the airfoil section than the outer layer section; the orientation angles of the first outer plies include the same values as the orientation angles of the inner plies; and the orientation angles of the second outer plies include values larger than the orientation angles of the first outer plies.

Dependencies are inferred from the claim text.