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Pioneering aeronautical engineer and aircraft designer (1898–1968) most famous as the designer of the Spirit of St. Louis, Charles Lindbergh's high-wing monoplane that made the first solo nonstop transatlantic flight. Original working drawing by aircraft designer Donald Albert Hall of the Spirit of St. Louis's fuselage, executed in pencil on oversized 43 x 17.75 drafting vellum, captioned and signed in the lower right in pencil, "Model N.Y.P., March 1927, Designed by D. A. Hall." Hall's drawing demonstrates some of the modifications made to the design of the Spirit of St. Louis, formally known as the Ryan NYP (for 'New York to Paris'), which was loosely based on the Ryan M-2 mailplane. In order to accommodate the fuel necessary for a transatlantic flight, the NYP carried five fuel tanks; at Lindbergh's request, the large main and forward fuel tanks were placed in the forward section, in front of the pilot, with the oil tank acting as a firewall. In very good to fine condition, with some scattered staining (heaviest to right side), tears, creases, and pinholes to corners.
Donald A. Hall was the chief engineer who designed the Spirit of St. Louis, the custom-built aircraft that Charles Lindbergh piloted during his historic 1927 transatlantic flight. Hall, working for Ryan Airlines in San Diego, California, created the aircraft in just 60 days. His design emphasized simplicity, efficiency, and long-range capability, with a focus on reducing weight and maximizing fuel capacity. The result was a single-engine monoplane featuring innovative elements like a heavily modified fuselage and wing design to accommodate extra fuel tanks, enabling the groundbreaking 3,600-mile journey.
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