1 Electrical and mechanical inventions
Electrical and mechanical inventions
Ader was an innovator in both electrical and mechanical engineering.
He originally studied electrical engineering, and in 1878 improved on
the telephone invented by Alexander Graham Bell. After this he
established the telephone network in Paris in 1880. In 1881, he
invented the théâtrophone, a system of telephonic transmission where
listeners received a separate channel for each ear, enabling
stereophonic perception of the actors on a set; it was this invention
which gave the first stereo transmission of opera performances, over a
distance of 2 miles (3 km) in 1881. In 1903, he devised a V8
engine for the Paris–Madrid race, but although three or four were
produced, none were sold.
Patent drawings of Clement Ader's Éole.
Following this, he turned to the problem of mechanical flight and
until the end of his life gave much time and money to this. Using the
Louis Pierre Mouillard
Clement Ader's Eole French patent 205155, 19 April 1890.
Ader's progress attracted the interest of the minister of war, Charles
de Freycinet. With the backing of the French War Office, Ader
developed and constructed the Avion III. It resembled an enormous bat
made of linen and wood, with a 15 m (48 ft) wingspan,
equipped with two four bladed tractor propellers, each powered by a
steam engine of 30 hp (22 kW). Using a circular track at
Satory, Ader carried out taxiing trials on 12 October 1897 and two
days later attempted a flight. After a short run the machine was
caught by a gust of wind, slewed off the track, and came to a stop.
After this the French army withdrew its funding, but kept the results
secret. The commission released in November 1910 the official reports
on Ader's attempted flights, stating that they were unsuccessful.
Book on aviation
An airplane-carrying vessel is indispensable. These vessels will be
constructed on a plan very different from what is currently used.
First of all the deck will be cleared of all obstacles. It will be
flat, as wide as possible without jeopardizing the nautical lines of
the hull, and it will look like a landing field.
— Clément Ader, L'
Ader is still admired for his early powered flight efforts, and his
aircraft gave the French language the word avion for a
heavier-than-air aircraft. In 1938, France issued a postage stamp
Early flying machines
^ Zahm, Albert Francis (1950). Aeronautical Papers, 1885-1945. University of Notre Dame. p. 994. Retrieved 2 April 2018. ^ "Les Obsèquies de Clément Ader". l'Aérophile: 301. 1 May 1925. ^ Crook, Tim (2 November 1999). Radio drama: Theory and practice. pp. 15–16. ISBN 978-0-415-21603-6. ^ G. N. Georgano Cars: Early and Vintage, 1886–1930. (London: Grange-Universal, 1985). ^ Gibbs-Smith, Charles H. (3 April 1959). "Hops and Flights: A roll call of early powered take-offs". Flight. 75 (2619): 468. Retrieved 24 August 2013. ^ a b Encyclopædia Britannica: Clément Ader ^ Carroll Gray, "Clement Ader 1841–1925" ^ "European Aeronautic Defence and Space Company EADS N.V.: Eole/Clément Ader"". Archived from the original on 20 October 2007. Retrieved 20 October 2007. CS1 maint: BOT: original-url status unknown (link) ^ La première étape de l'aviation militaire en France Bibliothèque numérique en histoire des sciences et des techniques. Retrieved 29 March 2016. ^ Gibbs-Smith2003 p.75 ^ Gibbs-Smith 2003, p. 75. ^ "Sandcastle V.I. - Carriers: Airpower at Sea - The Early Years / Part 2". www.sandcastlevi.com. Retrieved 17 September 2008. ^ "Clement Ader and the Aeroplane". Science. American Association for the Advancement of Science. 61 (1586): 533. 22 May 1925. doi:10.1126/science.61.1586.533. JSTOR 1648968. ^ Zahm, Albert F. (1944/1945). "Conspectus of Early Powerplane Development". Records of the Columbia Historical Society. 46/47: 325–358. JSTOR 40067638. Check date values in: date= (help)
Lissarague, Pierre, Ader, Inventor of Aeroplanes. Tolouse, France: Editions Privat, 1990 Lissarague, Pierre, Pegasus,the magazine of Musee de l'Air, Nos. 52, 56, 58, . (Articles on restoration of Ader's Aeroplane 3 and on the testing of engines and propellers.) Pierre Lissarague and J. Forestier, Icarus an article on restoration of Ader's Avion 3, No. 134 (October 1990). Gibbs-Smith, Charles Harvard (1968). Clément Ader: His Flight-Claims and His Place in History. Aeronautical engineers. London: Her Majesty's Stationery Office. p. 214. Gibbs-Smith C.H., Aviation: An Historical Survey. London, NMSI, 2008. ISBN 1-900747-52-9
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WorldCat Identities VIAF: 61575214 LCCN: n91009761 ISNI: 0000 0000 3405 1544 GND: 119011689 SUDOC: 029361443 BNF: cb121004310 (data) Léonore: LH/8