The Economic Value of Increase of Modulus of Elasticity in Aluminium Alloys: A Communication from the National Physical Laboratory Recommended for External Publication by the Structures Sub‐Committee of the Aeronautical Research Council Available to Purchase

IN the present note a comparison is made between normal aluminium alloys and alloys with increased values of the modulus of elasticity for covering the upper surfaces of wings of moderately thick sections, particularly of the smooth wing type. This comparison is intended to form the basis for the design of test panels for experimental verification of the theoretical conclusions.