Interaction Between Air Propellers and Airplane Structures
This is a 1927 NASA technical report on how air propellers interact with airplane structures, published by the NASA Technical Reports Server for aeronautical engineers and researchers. The pictures are plotted characteristic-coefficient graphs for propellers with thrust, power and efficiency curves on gridded axes, plus a photograph of a wind-tunnel model fitted with a propeller. A designer might take from them the clean line-graph conventions and the stark wind-tunnel model photograph as a source of technical, measured imagery.
