Léon Delagrange
Léon Delagrange, Ferdinand Marie Léon Delagrange, born 13 March 1872 in Orléans (Loiret) and deceased 4 January 1910 at Croix d'Hins (Gironde), was an aero inventor, aviator, and sculptor, also factoring into the history of Appareils d'Aviation Les Frères Voisin, and setting airplane flight distance records in 1907.
In 1908 he entered a friendly competition with Henry Farman as both undertook regular flights at Issy-les-Moulineaux, grounds provided by the French Minister of War to the Aéro-Club de France. On 17 March 1908 he won a 200-franc prize from the Aéro-Club for flying more than 200 meters as a beginner. On 21 March he raced Farman, who flew 2004.8 meters; Delagrange then flew 1,500 meters; the two then flew 50 meters together—the first airplane flihgt with two men aboard.[1]
On 11 April 1908 he flew 2,500 meters but touched the ground midway, disqualifying him from setting a new record. On 12 April he officially break Farman's record with a flight of 5,575 meters, 3,925 of them continuous without touching the ground. He then made some demonstrations in Italy, including a 12.75 km flight on 30 May 1908. Finally, he flew 14.8 miles on 6 September 1908, at Issy-les-Moulineaux.[1]
Publications by or about Léon Delagrange
- Delagrange, 1907, Mes impressions durant mes premiers essais d'aviation (Simple title: My impressions during my first aviation tests, Journal: La Rev. Aviat.)
- Publication 3391, 1908, Delagrange's aeroplane flight in Italy (Simple title: Delagrange's aeroplane flight in Italy, Journal: Scient. Amer.)
- Publication 3392, 1908, Delagrange's neuer Rekord, 17 Kilometer in 16 Min. 30 Sek (Simple title: Delagrange's new record, 17 kilometers in 16 min. 30 sec, Journal: Wien. Luftsch. Zeit.)
- Delagrange, 1908, Le triomphe de Delagrange (Simple title: The triumph of Delagrange, Journal: La Rev. Aviat.)
- Publication 10044, 1908, Que penser de l'appareil Wright. M. Ernest Archdeacon, M. le Capitaine Ferber, M. Gabriel Voisin, M. Henry Farman, M. Léon Delagrange, M. Armengaud jeune, le commandant Bouttieaux, M. Henry Kapférer, M. Calderara, M. Surcouf (Simple title: What to think of the Wright apparatus. Mr. Ernest Archdeacon, Mr. Captain Ferber, Mr. Gabriel Voisin, Mr. Henry Farman, Mr. Léon Delagrange, Mr. Young Armengaud, Commander Bouttieaux, Mr. Henry Kapferer, Mr. Calderara, Mr. Surcouf, Journal: La Rev. Aviat.)
- Ferber, 1908, Betrifft die Erfahrungen Delagranges in Rom (Simple title: Concerning the experience of Delagrange in Rome, Journal: Ill. Aër. Mitt.)
Links
References
- ↑ 1.0 1.1 Zahm, 1911, Aerial Navigation, pp. 261–263.
