Maneuverability Investigation of an O3U-1 Observation Airplane
This 1934 NASA technical report, issued through the NASA Technical Reports Server, records flight tests of an O3U-1 observation airplane's maneuverability for aeronautical engineers. Its pictures are stacked time-history charts plotting control movements, angular velocities, airspeed and linear acceleration against seconds and longitudinal displacement in feet, in plain black lines on white with labeled curves and axis legends. A designer could take from them the clean, dense graph layout, with its stepped stacked panels, dashed and solid line coding and handwritten-style annotations.
