Performance of Several Combustion Chambers Designed for Aircraft Oil Engines
This is a 1928 NACA report from the National Advisory Committee for Aeronautics, issued by the US government for aircraft engine engineers, on comparing combustion chamber designs for aviation oil engines. Its pictures are mostly engineering line drawings of cast cylinder head and chamber castings, paired with performance charts plotting mean effective pressure, fuel consumption and explosion pressure against fuel quantity, plus one photograph of an engine on a test stand. A designer could take from them the clean monochrome plate layout with tabular grid captions and the restrained two-tone use of solid and dashed curves.
