U.S. Patent Specifications

Abstract

A laminated aerofoil section comprising spaced curved surface sheets of high density material adhesively bonded to a continuous core sheet of wood which has the ends of the grain abutting said surface sheets, said core sheet in the area of the leading edge of said aerofoil comprising a plurality of pieces adhesively bonded together having the bond lines between said pieces and the seasonal growth lines of said pieces substantially perpendicular to said leading edge, said core and surface sheets forming a continuous panel having a curvature corresponding to the contour of said aerofoil, a plurality of spaced flanges attached to each of the upper and lower internal surfaces of said aerofoil shaped panel in chordwise planes of said aerofoil, and means for rigidly connecting said flanges to internal structure adapted to be disposed in said aerofoil.

Citation

(1952), "U.S. Patent Specifications", Aircraft Engineering and Aerospace Technology, Vol. 24 No. 4, pp. 120-120. https://doi.org/10.1108/eb032153