Avion II | |
---|---|
Ader's 1892 steam engine, called Zéphyr, developed for Avion II, on display at the Musée de l'Air et de l'Espace. | |
Role | Pioneer aircraft |
National origin | France |
Designer | Clément Ader [1] |
Number built | 1 partially completed [1] |
Developed from | Ader Eole [1] |
The Avion II (originally referred to as the Zephyr (west wind) or the Éole II) was the second primitive aircraft designed by Clément Ader in the 1893. [1] Most sources agree that work on it was never completed, Ader abandoning it in favour of the Avion III that had a financial backer. Ader's later claim that he flew the Avion II in August 1892 for a distance of 100 m at a field in Satory is not widely accepted.[ citation needed]
The name "Avion" was devised by Ader from Latin avis ("bird") and became the origin of the word avion, the most common in French to designate an airplane (heavier-than-air aircraft). The first official text noting it is French patent no. 205 555 granted to Ader on April 19, 1890.[ citation needed]
The engine developed for Avion II, called Zéphyr was a light steam engine driving a 3 m (10 ft) diameter 4-bladed propeller, in which steam was cooled through a condenser. It yielded 22 kW (30 hp) at 480 rpm at a pressure of 15 Pa (0.00 psi), weighing 33 kg (73 lb) dry, and 134 kg (295 lb) with full boiler and accessories. [1]
Related development Ader Eole Aircraft of comparable role, configuration, and era Ader Avion III
Avion II | |
---|---|
Ader's 1892 steam engine, called Zéphyr, developed for Avion II, on display at the Musée de l'Air et de l'Espace. | |
Role | Pioneer aircraft |
National origin | France |
Designer | Clément Ader [1] |
Number built | 1 partially completed [1] |
Developed from | Ader Eole [1] |
The Avion II (originally referred to as the Zephyr (west wind) or the Éole II) was the second primitive aircraft designed by Clément Ader in the 1893. [1] Most sources agree that work on it was never completed, Ader abandoning it in favour of the Avion III that had a financial backer. Ader's later claim that he flew the Avion II in August 1892 for a distance of 100 m at a field in Satory is not widely accepted.[ citation needed]
The name "Avion" was devised by Ader from Latin avis ("bird") and became the origin of the word avion, the most common in French to designate an airplane (heavier-than-air aircraft). The first official text noting it is French patent no. 205 555 granted to Ader on April 19, 1890.[ citation needed]
The engine developed for Avion II, called Zéphyr was a light steam engine driving a 3 m (10 ft) diameter 4-bladed propeller, in which steam was cooled through a condenser. It yielded 22 kW (30 hp) at 480 rpm at a pressure of 15 Pa (0.00 psi), weighing 33 kg (73 lb) dry, and 134 kg (295 lb) with full boiler and accessories. [1]
Related development Ader Eole Aircraft of comparable role, configuration, and era Ader Avion III