Model Experiments on the Forces and Moments Acting on an End Plate Fitted to a Wing
This NASA technical report from 1938 presents wind-tunnel model experiments measuring forces and moments on an end plate fitted to an aircraft wing, written for aeronautical engineers and researchers. Its pictures are plain engineering diagrams: a dimensioned top-down sketch of model assembly with a side profile, and a line graph of a control-surface coefficient plotted against angle for several incidence settings. A designer might take from them only the stark, labelled technical drawing style and the sparse grid-and-line chart convention.
