A study of airplane ranges and useful loads
A 1920 technical report from the NASA Technical Reports Server, a study of airplane range and useful load, offering a compact set of engineering diagrams for aviation performance analysis. The four pictured figures are line-drawn graphs and geometric plots: a curved path with tangent lines and labelled points, a straight-line decline between load and distance, a velocity-versus-thrust curve with dashed construction lines, and a descending weight-against-range curve with marked horizontal reference levels. A designer could borrow their clean technical linework, labelled axes and dashed-construction styling for diagrammatic or infographic work.
