The D.H."Dragon Moth" commercial airplane (British) : a twin-engine 6-passenger biplane
A 1933 NACA Aircraft Circular, issued by the US National Advisory Committee for Aeronautics and preserved by NASA's technical report server, documenting the British D.H. Dragon Moth twin-engine six-passenger biplane for engineers and aviation researchers. The pictures are measured technical drawings: orthographic side, front, top and plan views with dimension lines, plus a sheet of structural detail sketches of wing and fuselage frames, showing clean line work and numbered callouts a designer could borrow for diagrammatic layouts.
