Test of an adjustable pitch model propeller at four blade settings
This NACA technical note from 1930 reports wind-tunnel tests of an adjustable-pitch model propeller, issued by the National Advisory Committee for Aeronautics for aeronautical engineers and researchers. Its pictures are plain engineering line graphs of thrust and power coefficients plotted against advance ratio, plus a drawing of blade outlines and airfoil cross-sections, offering a designer little beyond clean, minimal technical charting and tidy grid-based data presentation.
