Onlookers surround the Curtiss C-2 in which 21-year-old Lawrence Sperry demonstrated his Sperry gyroscopic stabilizer to win the Concours de la Securité en Aéroplane on June 18, 1914. (Glenn H. Curtiss Museum)
Glenn H. Curtiss Museum
Onlookers surround the Curtiss C-2 in which 21-year-old Lawrence Sperry demonstrated his Sperry gyroscopic stabilizer to win the Concours de la Securité en Aéroplane on June 18, 1914. (Glenn H. Curtiss Museum)
Glenn H. Curtiss Museum