qou zhun que fan yi

qou zhun que fan yi
The first working airplane was invented,designed,made,and flown by the Wright brothers,Wilbur Wright and Orville Wright .Their "Wright Flyer" was a fabric-covered biplane with a wooden frame.The power to the two propellers was supplied by a 12-horsepower water-cooled engine.
On December 17,1903,the "Flyer" flew for 12 seconds and for a distance of 120 feet .The flight took place at Kitty Hawk,North Carolina,USA.Orville and Wilbur Wright were raised in Dayton,Ohio.Although they did not go to college,the brothers had intuitive technical ability.Before building their airplane,they had built a printing press and operated a bicycle repair and sales shop.They constructed their own bicycles.The profits from their bicycle business funded their airplane-building venture.The brothers chose Kitty Hawk to fly their planes because it was an isolated town on North Carolina's Outer Banks that had steady winds and sand dunes on which they could glide and land gently,maximizing their safety.The brothers' first glider,tested in 1900,failed to fly.A second trial in 1901 fared better,but they went on the improve the design.Later that year,the brothers built a wind tunnel in which they tested over 200 wing and airframe designs.This resulted in a successful glider model .
不要用百度一字一句的按顺序翻译