Considerations of the take-off problem
This is an aeronautical engineering report, NACA Technical Report No. 597 era, issued by the National Advisory Committee for Aeronautics in 1936 on aircraft take-off performance, written for airplane designers and test engineers. Its pictures are plain line graphs with hand-drawn curves, grid axes and labelled families of lines, showing lift coefficient against aspect ratio, take-off time and distance against speed, thrust and resistance curves, and ground-friction resistance curves. A designer could take from them the typical shape of performance trade-off charts and the way several parameters are plotted together on one set of axes.
