History Hour: One kilometer Farman flight
Henry Farman successfully flew a circular one kilometer course at Issy-les-Moulineaux, France, in 1 minute, 28 seconds to win the Grand Prix de l’aviation, a prize of 50,000 francs, which had been offered by Henri Deutsch de la Meurthe in 1904. The flight was taken place on the 13th of January 1908.
Henri Deutsch de le Muerthe (1846–1919) was a wealthy French businessman with a strong interest in aviation. He was one of the founders of the Aéro-Club de France. Along with Ernest Archdeacon, he sponsored a series of prizes to promote advances in flight.
The single-place single-engine biplane was built by brothers Charles and Gabriel Voisin, and was very similar to the Voisin-Delagrange I which they had built several months earlier. Henry Farman had requested some slight modifications. He first flew the airplane 30th of September 1907.
Farman had previously won the Coupe d’Aviation Ernest Archdeacon (Ernest Archdeacon Cup) when he flew his Voisin-Farman I a distance of approximately 771 meters (2,530 feet) in 52 seconds, 26th of October 1907.
Charles Voisin and Henry Farman, 1907. (Unattributed)
The Voisin-Farman I was 44 feet, 2 inches (13.462 meters) long, with a wingspan of 35 feet, 5 inches (10.795 meters) and weighed 705 pounds (319.8 kilograms). The airplane was powered by a steam-cooled, direct-injected, 487.14 cubic-inch-displacement (7.983 liter) Société Antoinette 8V 90° V-8 direct-drive engine producing 53 horsepower at 1,100 r.p.m.
The engine turned a two-bladed pusher propeller. It was designed by Léon Levavasseur. The engine was 1.120 meters (3 feet, 8 inches) long, 0.630 meters (2 feet, 1 inch) wide and (0.540 meters (1 foot, 9 inches) high. It weighed 95 kilograms (209 pounds).
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