Drag of Exposed Fittings and Surface Irregularities on Airplane Fuselages
This is a 1928 NACA technical report, issued by the National Advisory Committee for Aeronautics and later held in the NASA Technical Reports Server, on how exposed fittings and surface bumps add drag to airplane fuselages. Its pictures are plain black-and-white diagrams and test-rig photographs of wind tunnel apparatus, useful to a designer for the stark utilitarian look of early engineering documentation with its precise labels and measurements.
