Engine Operation in Flight for Minimum Fuel Consumption
This is a 1939 NASA technical report, issued through the NASA Technical Reports Server, on aircraft engine settings that burn the least fuel in flight. Its authors wrote it for aeronautical engineers and pilots. The four pictures are engineering charts plotting manifold pressure, engine speed, fuel flow, cylinder-head temperature and air speed as grids of labelled curves, offering a designer a clear model for restrained technical data graphics.
