See A. R. Macewen, Antoinette Bourignon, Quietist (1910).
In October 1906, an Antoinette engine powered Europe's first heavier-than-air flying machine to fly, the Santos-Dumont 14-bis. However, the 14-bis was by definition not a true airplane because it lacked controllability in two out of three axes and could only fly straight ahead in ground effect. More significantly, in January 1908, a Voisin pusher biplane modified and piloted by Henri Farman successfully completed Europe's first 1 kilometer circular flight, landing where it had taken off. This Farman-Voisin biplane was powered by a water-cooled Antoinette V8 engine which developed at 1,400 rpm. It used an early form of direct gasoline injection and weighed only 190 pounds in working order, including the water-filled cooling system. Its power-to-weight ratio was not surpassed for another 25 years.
Appearing in 1906, Antoinette's 25- and engines gave European aviation its start. Excellent as they were, these lightweight aero engines were subject to quitting if the tiniest bit of dirt or debris found its way into the fuel to clog their early fuel injection systems. A routine practice at the time was to pour in the gasoline through a funnel lined with chamois leather, which also served as a microfilter. That the Antoinette engine could quit in flight is illustrated by Hubert Latham's aborted English Channel crossing on July 19th 1909, when the renowned aviator had to ditch his monoplane on the water halfway to the English coast. Bleriot's monoplane succeeded a few days later, on July 25th 1909, largely thanks to a much simpler and more reliable air-cooled Anzani 3W radial. It is only in 1909, with the advent of the Gnome Omega rotary, early aviators like Farman gained a superb and distinctly more reliable French aero engine to choose from. In 1907, an Antoinette engine powered the first true helicopter, designed by Paul Cornu.