Longitudinal balancing of airplanes
Longitudinal balancing of airplanes is a 1923 technical report from the NASA Technical Reports Server, a government aeronautics series, written for aircraft engineers and wing designers. Its four pictures are plain line graphs of wing lift centre position and elevator angle plotted against angle of attack, with families of curves labelled by degree marks, which a designer might take as a model for clean technical charting in a restrained black-and-white scheme.
