01/06/2025
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1929 Duesenberg Model J St. Cloud Sedan by Weymann.
Charles Terres Weymann (1889–1976) was a French-American aviation pioneer and automotive innovator who brought aircraft engineering principles to car body design. Born to an American father and French mother aboard a ship near Haiti, Weymann was raised in France. He earned his pilot’s license in 1909 and soon gained fame in European aviation, winning the Gordon Bennett Cup in 1911. During World War I, he worked as a test pilot for the French aircraft company Nieuport, and was honored with the Croix de Guerre and named a Chevalier of the Legion of Honour.
After the war, Weymann applied his aviation knowledge to automobiles, inventing the Weymann Flexible Body System. Introduced in 1921, it used an ash wood frame joined by metal brackets and separated by paper and spacers to reduce squeaks. The framework was covered in fabric layers—muslin, cotton, and synthetic leather like Dupont Zapon—resulting in a lightweight, quiet, and flexible body. His designs featured innovations like adjustable seatbacks and rounded corners reinforced by metal panels. These patents were licensed to top European coachbuilders, and by the mid-1920s, Weymann had established factories and offices in Paris, London, New York, and Cologne. Over 120 coachbuilders worldwide used his system, including those building bodies for Voisin, Delage, and Hotchkiss. By the 1930s, all-metal car bodies became the norm, and the Weymann system fell out of favor.
Long existing in the two-tone colors of green and yellow, this Duesenberg has been beautifully restored by and .