The Avion III was a steam-powered aircraft built by Clément Ader between 1892 and 1897, financed by the French War Office.
Avion III (photo edited to show in flight)
Steam engine of Eole III (seen from the front). Musée des Arts et Métiers.
Avion III at Musée des Arts et Métiers.
Steam engine of Eole III (seen from the back), with pressure valve. Musée des Arts et Métiers.
The Avion II was the second primitive aircraft designed by Clément Ader in 1893. Most sources agree that work on it was never completed, Ader abandoning it in favour of the Avion III that had a financ
Ader Avion III
…Type Experimental monoplane National origin France Designer Clément Ader Number built 1 History First flight 14 October 1897 (hops) Developed from Avion II The Avion III (sometimes referred to as the Aquilon or the Éole III) was a steam-powered aircraft built by Clément Ader between 1892 and 1897, financed…
Ader's 1892 steam engine, called Zéphyr, developed for Avion II, on display at the Musée de l'Air et de l'Espace.