The reaction on a float bottom when making contact with water at high speeds
A 1928 NACA technical note from the NASA Technical Reports Server, presenting experimental results on the hydrodynamic reaction of a seaplane float bottom striking water at high speed, compiled for aeronautical engineers. The pictures are engineering diagrams: side-profile float sections with trim-angle lines, speed-axis line graphs of moments, and resistance and vertical pull curves plotted against speed in knots. A designer might take from them the clean line-and-graph vocabulary of mid-century technical reporting, with its labelled axes, dashed trim families and sparse grid.
