Performance of Maybach 300-horsepower airplane engine
A 1923 technical report on the Maybach 300-horsepower aircraft engine, issued by the NASA Technical Reports Server as an engineering record of engine performance for aeronautical engineers. The pictures are plain graph plots of horsepower, air consumption, mechanical efficiency and propeller load against engine speed and air density, drawn as black lines on white with labelled curves and grid axes. A designer might borrow the clean chart grammar of stepped curves, labelled axes and dense technical annotation as a graphic motif.
