Tank Tests to Determine the Effects of the Chine Flare of a Flying-boat Hull N.A.C.A. Model Series 62 and 69
This NACA technical report from 1939, issued by the National Advisory Committee for Aeronautics, presents tank test results on how chine flare affects the resistance of flying-boat hull models in the Series 62 and 69. Its pictures are plain engineering line graphs with dense gridlines, labelled curves and small schematic hull sections, which a designer might take from as a restrained, technical chart style built on black lines, grey grids and minimal annotation.
