Experiments on airfoils with aileron and slot
A 1927 aeronautical technical report, issued through NASA's Technical Reports Server, presenting wind-tunnel experiments on wing sections fitted with ailerons and slots for engineers working on aircraft control. The first picture is a graph of a coefficient against angle for three aileron settings, and the second is a set of dimensioned airfoil profile drawings with aileron and slot cross-sections, useful to a designer for seeing how a hinged control surface changes a wing's outline.
