Sotinel, Guerin, Corneloup, et Karganiantz

   A monoplane built by Sotinel, Guerin and Corneloup-Karganianz appeared in 1909. It may not have been finished - or perhaps it was in fact the subsequent monoplane built with Janoir. Sotinel also worked with Bastier and de Brageas, but he seems soon to have left these associations. The Guerin-Corneloup machine was under construction in a hangar guarded by a goat said to be fond of castor oil. One account described the machine as a "differential balance... to be automatically stable in bank and climb." The fuselage worked as a pendulum and was connected to the wingtips. When one wing was raised by a gust, the tips automatically moved with the fuselage to level the aircraft. Change in speed or altitude could be made by varying the angle of attack of the wings. The description ended by saying that "the bird has not yet finally borne out all that is claimed for it, although the design is certainly very ingenious."

   (Span: 11m; length: 9 m; wing area: 21 sqm; gross weight: 400 kg)