18 June 1914

Lawrence B. Sperry demonstrated his father Elmer’s gyrostabilizer, fitted to a Curtiss C-2 biplane, before a large crowd at the international airplane safety competition in Paris, France on June 18th, 1914. This demonstration earned the Sperrys a 50,000 franc prize. Elmer A. Sperry was awarded the 1914 Collier Trophy for gyroscopic control.