This plane, the first Swiss two-seater, was a 1911 development of the earlier Dufaux-4 and had a similar landing gear and triangular-section fuselage. It was equipped with either 70 hp Gnôme or with Oerlikon 4-cylinder horizontally-opposed engines. Several were built, it was used in the flying school of Ernest Failloubaz, was flown by many of the most famous early Swiss pilots and also made the first Swiss military flights.

 

Span: 27'3"

Length: 30'6"

Weight: 1224 lbs

Speed: 52 mph