Engine Performance and Knock Rating of Fuels for High-output Aircraft Engines
A 1938 NASA technical report on engine performance and knock rating of fuels for high-output aircraft engines, issued for engineers and fuel researchers. Its first picture is a set of curves plotting power or output against a test variable for several fuel or engine conditions, and its second is a cross-section line drawing of an engine cylinder head with valve guides, a bushing and a fuel passage, useful for designers wanting clean technical diagram conventions such as hatched cut surfaces, dashed hidden lines and leader-labelled callouts.
