The Avro 631 training airplane (British) : a two-seat light biplane
This is a 1932 NACA aircraft circular from the NASA Technical Reports Server, a technical bulletin describing the British Avro 631 Cadet, a two-seat light biplane, written for engineers and aviation researchers. The pages mix photographs of the finished biplane with line drawings of its details, including three-view arrangement drawings, undercarriage parts and engine mounts.
