The Avro "avian III" Airplane (british)
A 1928 NACA Aircraft Circular from the NASA Technical Reports Server documenting the British Avro Avian III light biplane for aeronautical engineers and researchers. Its pictures are plain line drawings with dimensioned general arrangement views, structural detail sketches of wing trusses, fuselage and engine cowling, and a scale drawing a designer could use for mechanical and vehicle diagram references.
