Penetration and Duration of Fuel Sprays from a Pump Injection System
This is a 1934 NACA technical report on fuel spray behaviour in pump injection systems, prepared for engine researchers and combustion engineers. Its pictures are plain line graphs of spray penetration against time at different pump speeds, plus stroboscopic spray photographs and oscillograph traces, offering a designer little beyond the scientific diagram style of the period: grid paper, labelled axes, and dashed and solid curves.
