Tank Tests of Model 36 Flying Boat Hull
This is a 1938 NACA technical note reporting wind-tunnel or tank test results for a flying boat hull, published by the National Advisory Committee for Aeronautics for aeronautical engineers and researchers. The pages are engineering charts plotting hull coefficients against speed coefficient, with curves for multiple trim or angle settings. A designer might take from them the clean grid layouts, stacked small graphs, and labelled curve families typical of technical reports.
