Thursday, February 21, 2013

Англи хэлний "Пирамид" тэмцээний текст - Бүх анги



The Wright Brothers

            The Wright brothers were Orville Wright (born August 191871 and died January 301948) and Wilbur Wright (born April 161867 and died May 301912). They designed, built, and flew the first controlled, powered, heavier-than-air airplane on December 171903. They had been experimenting for many years with gliders and other vehicles before their first powered flight. They are also known for making the first way to steer an airplane. They designed the aircraft in Dayton, Ohio, and their first test flight was in Kitty Hawk, North Carolina.
            The Wrights both grew up in Dayton, Ohio. They were two of seven children. Their father was Milton Wright and their mother was Susan Catherine Koerner. Their father was a minister in the Church of the United Brethren of Christ. They went to high school, but didn’t receive a diploma; Orville dropped out of high school during his junior year and started a printing business in 1889. Their weekly newspaper was called the West Side News, where Orville was the publisher and Wilbur was the editor. After that, they started a shop to build and repair bicycles. In 1892 they opened a repair and sales shop for bicycles called the Wright Cycle Exchange. Four years later they manufactured their own brand of bicycle.
By this time, the Wrights were interested in flight, especially the gliders of Otto Lilienthal from Germany. They used the money they made from the bicycle shop to fund their interest in flight. They thought controlling a plane was one of the big problems of flight. Lilienthal and others had been killed when they could not control their glider aircraft. The Wright brothers fixed the problem by building wings that could be twisted a little and moved up and down slightly.
            From 1900 to 1902, they built gliders in Dayton and tested them in Kitty Hawk, North Carolina, where there were strong and steady winds. During these years, they also made small versions of the wings, and built a wind tunnel to test how well different wing shapes would lift an airplane.
In 1903, they built a powered airplane called the Wright Flyer I, that had wooden propellers and a light but powerful engine. The Wright Flyer airplane first flew successfully on December 171903, in Kitty Hawk, North Carolina. The first flight went 120 feet (37 meters) for 12 seconds, at a speed of 6.8 miles per hours (10.9 km/hour). This was the first time people ever flew a powered airplane they could control. (Before that, people flew in balloons or gliders, or for a very short time in planes they couldn't control.) The two brothers continued to make changes to their design, and had a very good plane by 1905.
            After that, they started a company to build airplanes and had a “patent war” with Glenn Curtiss over who could make money from the invention of the airplane. Curtiss and some others had created “ailerons” which helped control the plane in a way very similar to the way that Wright brothers had created. The Wright brothers didn’t want Curtiss making money from the ailerons. Curtiss greatly disagreed with the Wright brothers about the patent, and in 1909 he sold an aircraft that had ailerons on it to the Aeronautic Society of New York. The Wrights filed a lawsuit against Curtiss, and against other foreign aviators. The Wright brothers won their case against Curtiss in February 1913 because the judge said that ailerons were covered under the Wright’s patent.
However, in April 1912, Wilbur took a business trip to Boston regarding the patent war and fell ill. When he returned to Ohio, he was diagnosed with typhoid fever, and after several weeks he died, at the age of 45, on May 30. So, Orville continued working to keep his reputation as the first man to fly.
In 1915, Orville sold his airplane company and it then became the Wright-Martin company. In 1917, World War I was happening, so the U.S. government asked the airplane industry to form an organization that made it okay to build planes for the war effort without going against the patents. They called this organization the Manufacturers Aircraft Association. Two millions dollars were paid to both the Wright-Martin company and the Curtiss company.
            Neither brother ever married. After Orville sold his company, he retired and became an important adviser for aviation, where he served on official boards and committees, including the National Advisory Committee for Aeronautics and NASA (National Aeronautics and Space Administration). Orville died of a second heart attack on January 30, 1948. Both brothers are buried at the family plot in Woodland Cemetery, in Dayton, Ohio.

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