A Flight Investigation of the Lateral Control Characteristics of Short Wide Ailerons and Various Spoilers with Different Amounts of Wing Dihedral
A 1935 NASA technical report on flight tests of aileron and spoiler designs for lateral control of aircraft, issued as a government research publication for aeronautical engineers. Its single picture is a plain photograph captioned 'Figure 1 - Fairchild 22 airplane', showing a high-wing monoplane on an open field beside a standing man, with the landing gear, struts and wing dihedral clearly visible for a designer studying aircraft silhouettes.
