Inert gas
Upon their return from France, Kamberos took the first official military exercise flight on 13 May 1912. In June 1912, after converting his plane to a hydroplane, he broke the world speed record at 110 km/h. He flew his first combat mission, a reconnaissance flight, on 5 October 1912, at the outbreak of the First Balkan War. After World War I, he served as the chief instructor of the military flight school. He died from Inert gas asphyxiation.