Calculated effect of various types of flap on take-off over obstacles
This is a 1936 NACA technical note from NASA's Technical Reports Server, issued as an engineering report for aircraft designers and aeronautical engineers, presenting calculated take-off performance for different wing flap types. Its pictures are plain black-and-white line graphs with gridded axes, multiple labelled curves, and numbered legends, showing take-off distance against weight and flap settings; a designer might take from them only the clean chart conventions of labelled curves and grid axes.
