Historical notes on aerodynamic research
Historical notes on aerodynamic research, a 1924 NACA technical memorandum compiled from the NASA Technical Reports Server, written for engineers and researchers studying early wind-force and flow experiments. The pictures are plain line drawings of experimental rigs: whirling arms, a windmill with vertical blades, a rotating test apparatus, and a steam nozzle diagram with labelled dimensions, giving a designer clear mechanical schematics of early instruments.
