Interference of Tail Surfaces and Wing and Fuselage from Tests of 17 Combinations in the N.A.C.A. Variable-Density Tunnel
This is a 1939 NACA technical report on wind-tunnel tests of 17 aircraft configurations, issued by the National Advisory Committee for Aeronautics for aeronautical engineers and researchers. Its pictures are plain engineering graphs of lift and drag coefficients against angle of attack, drawn on gridded paper with dashed and solid curves, plus one photograph of a wing-fuselage model on stands; a designer might take the clean line-plot style and the model's smooth fuselage form.
