Effect of Variation of Chord and Span of Ailerons on Rolling and Yawing Moments in Level Flight
This 1929 NACA technical report, issued by the National Advisory Committee for Aeronautics for aeronautical engineers and researchers, measures how aileron chord and span on a Clark Y wing affect rolling and yawing moment coefficients in level flight. Its pictures are plain line graphs with dashed and solid curves plotted against aileron chord or span percentages, with labelled angle families such as 8, 16, 24 and 32 degrees; a designer might borrow their clean, grid-based chart style for technical diagrams.
