The pressure distribution over a standard and a modified Navy elliptical wing tip on a biplane in flight
This NACA-era technical report from 1932, issued by the National Advisory Committee for Aeronautics and held in the NASA Technical Reports Server, studies pressure distribution over standard and modified Navy elliptical wing tips on a biplane in flight, written for aeronautical engineers. Its three pictures are line graphs of rib moment and rib normal-force coefficients against wing coefficients, with lettered curves for tip and rib stations; a designer could take from them the restrained, evenly spaced linework and the clear diagonal data plots typical of engineering documentation.
