About the invention of the airplane.

1903 17 February 17, Orville Wright of the United States successfully piloted a plane named "Bird" made by two brothers, which opened a new era of human aviation. The first test flight left the ground 120 feet (36.58 meters) and lasted 12 seconds, realizing the first sustained, dynamic and maneuverable manned flight. Therefore, the Wright brothers have become recognized aircraft inventors all over the world. But the Wright brothers were not the first to fly safely off the ground by manipulating devices heavier than air. As early as 1857- 1858, a French naval officer named Felix Detempur Decroi built an exquisite monoplane model plane, which could take off by its own power. Propelled first by clockwork and then by steam, it can fly a short distance and land successfully. More than a decade later, Detongpur built a similar full-scale aircraft, equipped with dihedral wings, horizontal tail and rudder, and a thermal engine. About 1874, a young French sailor took off after taxiing downhill and flew over a short distance in the air. This is the first time that a powered manned aircraft has made such a flight. 2 1 year before the success of the Wright brothers, Mocaj, a Russian naval officer, built a British-made twin-engine plane after 20 years of painstaking research on birds and kites. 1In the summer of 882, the mechanic Goreux Bev successfully made a test flight. Russians claim that this is the first flying plane in the world. But all countries in the world don't admit it, saying that Russian planes didn't fly on their own. It is also said that the Russian plane completed the short-distance jumping flight with the help of downhill sliding. Frenchman Clemens Adail is the most controversial figure in the whole flight history. It is generally believed that Adail was the first person to fly a powered plane on the flat ground. But so far, the focus of controversy about Adail is the difference between real continuous flight and "continuous jumping flight". 1890101On 9 October, Adail flew a plane called Kamikaze and made a secret test flight in Amin, a small mountain village near Graz. Due to military secrecy, the results of the test flight were not made public at that time. According to historical records, the plane made in Adail is shaped like a bat, with a foldable wing, a wingspan of 14m, a wing area of 28m and a length of 6.5m It is equipped with a steam engine of 14.7 kw, which drives a four-blade propeller, with a total engine weight of 296kg. The most striking feature of this plane is its engine. The later calculation shows that the engine's weight/power ratio is only 1: 13, far exceeding the contemporary level. In the 1960s and 1970s, the French government also claimed that Adail was the first person to successfully develop and test an airplane. But this plane is steam-powered, so it can't be a real plane. The Wright brothers are still considered as the inventors of the first airplane in the world. 1909, Feng Ru made China's first airplane in the United States. 19 12, Liu Zuocheng, who studied in Japan, made the first plane in China after returning to China. The first airport in China was built by using Nanyuan Police Playground.