Ader Avion II
Encyclopedia
The Avion 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. 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.
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.
The engine developed for Avion II, called Zéphyr was a light steam engine
, in which steam was cooled through a condenser. It was 30 horsepower, yielding 480 revolutions per minute at a pressure of 15 kg, weighing 33 kg dry, and 134 kg with boiler and accessories.
Aircraft
An aircraft is a vehicle that is able to fly by gaining support from the air, or, in general, the atmosphere of a planet. An aircraft counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines.Although...
designed by Clément Ader
Clément Ader
Clément Ader was a French inventor and engineer born in Muret, Haute Garonne, and is remembered primarily for his pioneering work in aviation.- The inventor :...
in the 1890s. Most sources agree that work on it was never completed, Ader abandoning it in favour of the Avion III
Ader Avion III
-See also:...
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.
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.
The engine developed for Avion II, called Zéphyr was a light steam engine
Steam engine
A steam engine is a heat engine that performs mechanical work using steam as its working fluid.Steam engines are external combustion engines, where the working fluid is separate from the combustion products. Non-combustion heat sources such as solar power, nuclear power or geothermal energy may be...
, in which steam was cooled through a condenser. It was 30 horsepower, yielding 480 revolutions per minute at a pressure of 15 kg, weighing 33 kg dry, and 134 kg with boiler and accessories.