Career
The Dufaux 4 was their first successful craft. On 28 August 1910, Armand flew it from Saint Gingolph to Geneva (c40 mi 64 km), taking just 56 minutes and 5 seconds, and winning the Perrot-Duval prize of 5,000 Swiss francs for the feat. Later in 1910, the brothers established an aircraft business, and in 1911, sold their "Dufaux 5" to an 18-year-old Ernest Failloubaz, whose reconnaissance flights were the beginning of Swiss military aviation.
The Dufaux 4 is today on display at the Swiss Transport Museum.
In 1997, Armand Dufaux was honored on a Swiss postage stamp, as one of four pioneers of Swiss aviation.