During World War II, some British and American air force pilots claimed to have found round luminous bodies many times over the Pacific Ocean and the Atlantic Ocean, calling them "fighter planes". According to their account, these "fighters" have superb flying skills. Sometimes they can fly around the pilot's plane and pass by. Sometimes you can chase the plane and leave quickly. At first, they also mistakenly thought that these "nonsense fighters" were the new weapons of German fascism. It turned out that they didn't mean anything. On June 24th, 1974, the United States Federal Police Commissioner kenyon. Arnold flew a plane to carry out a rescue mission, that is, to find the wrecked C-46 transport plane. At about 15, he flew near Mount Lenny in Washington. Just as the plane climbed to the height of 3500 meters to search for the trace of the wrecked plane, suddenly Arnold found a flash next to the rope! He immediately made a 180 degree turn in the air to find out where the flash came from. Arnold is an experienced pilot. His eyes followed the light source; It was found that nine shiny and dazzling objects were arranged in a trapezoidal shape, flying from north to south in front of his plane and winding through the mountains. "Every flying object jumps forward, just like a plate floating on the water", "It is estimated that their radius is about15m". He dictated afterwards, which caused a sensation in the United States and was widely reported by the news media.
Arnold also measured the ground background (mountain peak) and calculated that the flying speed of the luminous body was not less than 2700 kilometers per hour. This was incredibly super-high speed at that time, because supersonic aircraft had not been invented in the world at that time. When the newspaper published the above news, the reporter used the word "FlyingSaucers".
The Air Force Department (AAF) of the US Department of Defense paid close attention to this matter and conducted a long-term investigation. They suspect that it is the secret weapon of the Soviet Union, which is the situation of the Cold War between the United States and the former Soviet Union. However, the aviation industry thought that Soviet technology would not be so advanced, and then suspected that it might be imported from the United States. Because the US Navy started an XF5- 1 project more than ten years ago, and developed the most secret weapon at that time. The navy calls it "flying cake", which looks like a flying saucer. It has a pair of 1600 horsepower engines. When it "floats" in the air; Its maximum speed is 680 kilometers per hour, which can be reduced to 67 kilometers per hour when landing. Later, somehow, the navy canceled the project. Of course, ordinary people can't know the truth about such military secrets involving national security. Just as UFO became a mystery of social concern, American aviation engineering circles became more and more interested in the shape, structure and aerodynamic performance of UFO.
1953, Lockheed Aircraft Company of the United States put forward a design patent for a biconvex saucer-shaped aircraft, which looks like a flying saucer. According to its patent report, his advantages are high flying speed and strong vertical take-off and landing ability. This shape makes the structure more firm, and the whole machine remains stable when taking off and landing vertically; Because the contour curve is smooth, it has an aerodynamic advantage. Did Lockheed Aircraft Company build flying saucers? The researchers found no direct evidence. Almost at the same time, the British also engaged in this kind of action; The famous Ai Wu Road Company is also developing flying saucers. Later, they cooperated with the Canadian government to build a factory in the suburbs of Toronto, and proposed a circular airfoil design. As a result, the design was not accepted by the Canadian side, and the cooperation finally fell through. Later, the US Air Force took a fancy to this design, and formally signed a contract with the company at 1954, and put forward the top secret weapon system plan code-named "606A". According to informed sources, this flying saucer-shaped aircraft has a diameter of 30 feet (9. 1 m) and a top speed of 1690 miles (2,574 kilometers). The military abandoned the plan in 196 1 because the plane was unstable, which is always the biggest shortcoming.
Although "UFO" and "UFO" are not the same concept, the scope of UFO is wider. However, since then, the word UFO has often been used as a synonym for UFO, and it immediately became popular all over the world. Reports of various findings have been handed over to the police, air force departments, news agencies and scientists' offices. As high as 1968, the number of UFO reports collected in the United States alone reached 126 18.