Spinning Characteristics of the XN2Y-1 Airplane Obtained from the Spinning Balance and Compared with Results from the Spinning Tunnel and from Flight Tests
This is a 1937 NACA technical report by NASA's Technical Reports Server on the spinning characteristics of the XN2Y-1 airplane, measured on a spinning balance and compared with spinning-tunnel and flight results, written for aeronautical engineers. The pictures are line graphs of rolling-moment and resultant-force coefficients plotted against angle of attack for several spin configurations, plus a line diagram of the spinning-balance apparatus with its gimbals, measuring units and radius of spin. A designer might take from them the clean, dense engineering-chart look of 1930s technical plates: stacked curves with labelled points, dashed and solid line variants, and a schematic of a rotating wind-tunnel model.
