Societe Provisoire des Aeroplanes Deperdussin established in 1910, and built during 1912-1913 a series of very advanced monoplane racers with tulip-wood monocoque fuselages. In 1912 a "Dep" was the first aircraft to exceed 160km/h, and Prevost flew one to win the 1913 Schneider Trophy race at Monaco. In 1913 Deperdussin was arrested for embezzlement and the company was taken over by Louis Bleriot. The same initials were retained, but now stood for Societe Pour Aviation et ses Derivees (SPAD).

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