Inside Out Library · ExploreLimitations of the Pilot in Applying Forces to Airplane Controls (1936)NASA Technical Reports Server (NTRS) · leaf 15rig. 3 N.A.C.A. Technical note Ho. 550NASA Technical Reports Server (NTRS)Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.More pictures from Limitations of the Pilot in Applying Forces to Airplane ControlsMore like this