Relative loading on biplane wings of unequal chords
This is a 1935 NASA technical report on relative loading of biplane wings with unequal chords, published by the NASA Technical Reports Server and aimed at aeronautical engineers. Its pictures are plain engineering graphs drawn as smooth curves over fine grid paper, with labelled axes and families of parameter curves, showing how lift and correction factors change with gap-to-chord ratio and overhang. A designer might take from them only the restrained graph styling: thin black curves, dense square grids, and small italic axis labels.
