Basic requirements of fuel-injection nozzles for quiescent combustion chambers
This is a 1931 NACA technical report by the National Advisory Committee for Aeronautics on basic requirements for fuel-injection nozzles in quiescent combustion chambers, written for engine engineers and researchers. The pictures are engineering charts and sectioned drawings: line graphs of horsepower, fuel consumption and nozzle number against load, plus cutaway views of a cylinder head with valve and pressure-indicator locations. A designer might take the clean technical line-graph style, the labelled cross-sections, and the plain grid-based chart layouts as references for diagrammatic precision.
