Report on Rotor Promotor
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Wilbur (1867-1912) and Orville (1871-1948) invented and built the first
successful airplane. On December 17, 1903, They made the world's first flight
in a power-driven, heavier-than- air machine near Kitty Hawkk, North
Carolina. The longest flight, by Wilbur, was 260 meters in 59 seconds. In early
1905, the Wright Brothers offered to sell planes to the United States government,
but the government didn't take them seriously at first. In 1909, the first airplane
was bought from the Wright Brothers by the Army.
After reading about the death of pioneer glider Otto Lilienthal in 1896,
the brothers became interested in flying. They began serious reading on the
subject in 1899, and soon obtained all the scientific knowledge of aeronautics
then available. The Wright brothers concluded that all published tables of air
pressures on curved surfaces must be wrong. They set up a 6-foot wind
tunnel in their shop and began experiments with model wings. They tested
more than 200 wing models in the tunnel...