The Calculated Effect of Various Hydrodynamic and Aerodynamic Factors on the Take-Off of a Large Flying Boat
A 1939 NACA technical report by NASA's Technical Reports Server, a calculated study of hydrodynamic and aerodynamic factors affecting take-off of a large flying boat, written for aeronautical engineers. Its pictures are engineering charts of thrust, resistance and speed curves plotted on fine grid paper, with lift and drag coefficient graphs for wing flap settings; a designer could draw on their plain black-line, grid-based graphic language.
