The Dewoitine D.30 commercial airplane (French) : a high-wing cantilever monoplane
This NACA Aircraft Circular from 1931, issued by the National Advisory Committee for Aeronautics, documents the Dewoitine D.30, a French high-wing cantilever monoplane airliner, for engineers and aviation readers. The pages show structural details of its wing, fuselage frame and engine support, along with photographs of the airplane at the Paris Aviation Salon and a side drawing. For designers, the sheets offer plain engineering diagrams of riveted lattice frames and a clear sense of early aircraft construction.
