Effect of the Angular Position of the Section of a Ring Cowling on the High Speed of an XF7C-1 Airplane
A 1930 NACA technical note, issued by the National Advisory Committee for Aeronautics and preserved through the NASA Technical Reports Server, that reports wind-tunnel and flight tests on engine cowling placement for a Navy single-seat biplane fighter. Its pictures are plain black-and-white photographs of the aircraft nose from front and side angles, showing how a designer might read a streamlined ring cowling around a radial engine.
