Tank tests of a family of flying-boat hulls
This NACA technical report from 1934, issued by the National Advisory Committee for Aeronautics as a tank-test study of flying-boat hull forms, is a dense engineering publication for aeronautical researchers. Its pictures are plain black-and-white line graphs of resistance, trimming moment, trim angle and resistance coefficient plotted against speed, with labelled curves and parameter lines, offering a designer little beyond the grid-and-curve vocabulary of technical charts.
