Results of Tests on Radiators for Aircraft Engines
A 1920 technical report from NASA's Technical Reports Server collecting test results for radiators used on aircraft engines, written for engineers and aviation researchers. Its pictures are plain engineering graphs of pressure drop against flow rate for water tube core designs, with fine grid lines, labelled curves and hand-drawn-looking axes, offering a designer little beyond the look of early technical charts and their clean line-and-grid vocabulary.
