Definition of Ader avion ii

The Avion II (rarely referred to as the Zephyr (west wind) or the Éole II) was the second primitive aircraft designed by Clément Ader in the 1890s. Most sources agree that work on it was never completed, Ader abandoning it in favour of the Avion III that had a financial backer, but Ader claimed in later life that he flew the Avion II in August 1892 for a distance of 200 yards (200 m) at a field in Satory.