The "Comte A.C. 3" military airplane (Swiss) : a high-wing semicantilever monoplane
A 1930 NACA aircraft circular issued through the NASA Technical Reports Server, describing the Swiss Comte A.C.3 military airplane for aeronautical engineers and researchers. The pictures are plain technical plates: a three-view line drawing with dimensions, and grey photographs of the high-wing monoplane on the ground and close-ups of its engine and propeller, offering a designer clean reference views of early aircraft silhouettes and mechanical detail.

