Dufour

   Jean Dufour built at least one small biplane glider in 1908. It was very flimsy and loose, with a swallowtail tailplane and some sort of forward elevator. The airfoil section was flat.
   His first powered design was based on the Bleriot XI and built by Labaudie et Puthet. Sometimes described as an "ordinary monoplane," it had a classic fuselage of square section, and a long-legged undercarriage with skids ahead of the castered wheels. The long wings had rounded up-curved tips, and seemed in the photographs never to be quite squarely rigged. A fixed tailplane was mounted on top of the fuselage ahead of the curved rudder, and an elevator was hinged at the stern. Dufour No 1 flew first on 27 March 1910, having been begun late in 1909.

   (Span: 10.8 m; length: 10 m; wing area: 25 sqm; gross weight: 310 kg; a 45/50 hp Labor-Picker engine replaced the original 35 hp 4-cylinder Guerin)
  
   Dufour No 2, completed by September 1910, was a biplane with a front elevator, monoplane tailplane and single rudder, and a 35 hp Gnome. The top wing was of greater span than the lower, with ailerons set into it. The undercarriage was fitted with 2 pairs of wheels. This was probably the Dufour mentioned as being at the Garbero school in Antibes. It was reported that both Dufour aircraft had ribs made of freno-liege (ash and oak).
   A 2-seater is also mentioned in November 1911; it was either a new design or the old one modified. One journalist reported its rollout in November 1911.