Engine performance with a hydrogenated safety fuel
This is a 1933 NACA technical note from the National Advisory Committee for Aeronautics, issued through NASA's Technical Reports Server, reporting aircraft engine tests with a hydrogenated fuel for engineers and researchers. The three pictures are plain engineering graphs of power and fuel consumption plotted against a variable, and a cutaway drawing of a combustion chamber with its fuel-injection valve and an enlarged nozzle detail. A designer could take from them the clean line-graph conventions and the precise sectioned-part drawing style, with hatched cross-sections and fine leader lines.
