Tank Tests to Show the Effect Rivet Heads on the Water Performance of a Seaplane-Float
This is a 1938 NACA technical note from the NASA Technical Reports Server, reporting tank tests of how rivet heads affect the water resistance of a seaplane float, written for aeronautical engineers and naval aviation researchers. The pictures are dense engineering charts of wetted lengths, resistance, trim and trim moment plotted against speed in feet per second, drawn with fine black curves, dotted lines and small data markers on cream paper with a faint grid, giving a designer a restrained model for scientific graph layouts and technical annotation.
