The Transition Phase in the Take-Off of an Airplane, Special Report
This is a 1937 NACA-style technical report, issued by the National Advisory Committee for Aeronautics, on the transition phase of an airplane's take-off, aimed at aeronautical engineers and flight researchers. Its pictures are plain engineering graphs of take-off error, vertical distance against horizontal distance, and a photograph of a biplane on a flat field, so a designer could borrow their clean grid-and-curve diagram style and the vintage aviation subject.
