French World War I Aviator. He is credited for helping to develop the an an early form of interrupter gear that allowed military pilots to have their weapon fire synchronized with the front propellers of their planes, giving more accurate aerial dogfighting abilities. He served as a Lieutenant in the French Army during World War I as a reconnaissance pilot with the Escadrille MS26, and was credited for shooting down four Imperial German fighter planes. He was shot down in April 1915, and was a prisoner-of-war until February 1918, when he managed to escape and rejoin his unit. He was shot down and killed on October 5, 1918 in an air dogfight near near Vouziers in the Ardennes. The clay tennis courts stadium in Paris, France where the French Open is played annually was named in his honor.