Resume of Present Data on Load Distribution on Slots and Flaps, Special Report
This is a 1934 NASA technical report, compiled from the NACA aeronautical research series, summarising measured data on how lift loads are distributed across slots and flaps on aircraft wings for engineers and aerodynamicists. The pictures are dense engineering plots and cross-section drawings: airfoil profiles with slot details, pressure-distribution curves, and force-coefficient graphs on gridded paper with labelled axes and dashed and solid curve sets. A designer could take from them the clean line-drawn airfoil sections and the restrained grid-and-curve graphic vocabulary of early technical diagrams.
