Analysis of spinning in a monoplane wing by the induction method as compared with the strip method
This is a 1934 NACA technical memorandum (No. 747) on aircraft spinning, produced by NASA's Technical Reports Server and drawn from NASA technical report archives for engineers and aerodynamics researchers. Its pictures are plain engineering line graphs of aerodynamic coefficients against rotation parameters, plus a schematic of a wing with force vectors and a spin-path diagram, all in black ink on white paper, offering a designer little beyond the clean axis-and-curve conventions of mid-century technical drawing.
