Spinning Characteristics of Wings I : Rectangular Clark Y Monoplane Wing
A 1936 technical report from the National Advisory Committee for Aeronautics, published by NASA's Technical Reports Server, documenting spin tests on a rectangular Clark Y monoplane wing for aircraft designers and engineers. The single plate shows a model wing mounted on a vertical post inside a circular spin-test chamber, photographed from the side with the tunnel wall visible behind it. A designer might take from it the stark, technical look of early aeronautical test photography: a plain studio backdrop, a suspended model, and clean grey tones.
