A Complete Tank Test of a Model of a Flying-boat Hull - N.A.C.A. Model No.11-A
This is a 1933 NACA technical note reporting a complete tank test of a model flying-boat hull, published by the National Advisory Committee for Aeronautics for aeronautical engineers and researchers. The pictures are engineering graphs plotting resistance and trimming moment against speed in feet per second for several trim angles, with curves labelled by load in pounds, plus one chart of resistance coefficient against load coefficient. A designer could take from them the restrained grid-and-curve vocabulary of scientific plotting: thin black lines, dense gridded paper, and small numeric labels set against plain cream stock.





