The N.A.C.A. Apparatus for Studying the Formation and Combustion of Fuel Sprays and the Results from Preliminary Tests
A 1931 NACA technical report from the NASA Technical Reports Server on an apparatus for studying how fuel sprays form and burn, with preliminary test results. The pictures are engineering figures: time-lapse photographs of fuel spray combustion across crankshaft degrees, a wiring and timing schematic, and a cross-section of an injector nozzle with spray angles. A designer might take from them the stark high-contrast sequence frames and clean technical line diagrams of early twentieth-century research.




