Drag of cylinders of simple shapes
This is a 1938 NACA technical report on the drag of cylinders of simple shapes, issued by the National Advisory Committee for Aeronautics for aeronautical engineers and researchers. Its pictures are plain line graphs of profile-drag coefficient against airspeed ratio or Reynolds number, with marked data points for each shape and angle of attack, offering a designer a clear sense of how streamlined and blunt forms compare.
