🖥🏅💥比航母還貴的"女武神"原冷戰時北美研製的超高速戰略轟炸機，2小時內可達全球大部分目標地😄👨‍👩‍👧‍👦🤝👍👉 #軍事 #新瑞大視野

This extremely violent and beautiful plane, which has six super-large engines, is the fastest bomber ever produced by man. Its speed has reached a shocking 3.1 mph. Even the most powerful Tu-160 in Russia can only be a younger brother in front of it. It can fly to most of the world's targets in two hours. Its nuclear bombs are capable of destroying 14 medium-sized cities. It is a high-altitude high-speed female warrior strategy bomber developed by the North American Air Force during the Cold War. The plane uses a dual-wing, three-axis wing design, which is very scientific. This unique aerodynamic layout allows the female warrior to maintain excellent maneuverability and stability while having high-altitude and high-speed flight capabilities. It is worth mentioning that the three-axis wing of the XB-70 can be bent downward. When low-altitude flight requires lift, the wing is bent down by 25 degrees to increase the effective area of the wing. When it needs more maneuverability, it can be adjusted to 65 degrees. At this time, the three-axis wing area is reduced, and the plane can have better maneuverability. In addition to the unique design, the fuselage material is also specially processed. Due to the temperature generated by the fuselage cover and air friction when flying at supersonic speed, up to 400 degrees will directly cause the surface of the plane to fall off. To solve this problem, the plane creatively used the method of fuel cooling to extract some fuel from the engine to the surface of the fuselage. The purpose of fuel cooling is to absorb external heat and reduce the temperature of the fuselage. After that, the fuel is returned to the engine and continues to cycle back and forth to achieve the effect of cooling. In addition, the fuselage and front part of the wing, which are mainly heat-resistant, are also made of titanium alloy with a melting point of more than 1,000 degrees. At that time, the price of titanium alloy was very expensive, and the processing technology was not mature. The engineers had a hard time making it into the shape of a chicken's nose. In this way, the cost of manufacturing the female warrior increased significantly, and the final cost was $750 million. As you know, the first nuclear-powered aircraft carrier is only $450 million. To make such a high-performance bomber, the U.S. military has put a lot of blood and sweat into it. The female warrior not only has a luxurious fuselage, but also a very strong performance. The YJ-93 turbo-jet engine with six common motors is enough to make people's eyes shine. The maximum thrust can reach 84 tons, which is 20 tons higher than the thrust of our country's current ace transport aircraft, Yun-20. You should know that the two are nearly half a century apart. The XB-70 can carry 22 tons of explosives or 14 atomic bombs and has a combat radius of 7,900 kilometers. Since the U.S. military has deployed bases in most areas of the world, it means that the female warrior can attack any country in the world. In addition to its high-altitude, high-speed characteristics, the air defense can't hit it, and the fighter can't catch up. It was absolutely invincible at the time. So why didn't such a powerful female warrior become one of the three current strategic bombers in the United States? There's even no chance of mass production. When the female warrior first took off, the mainstream way of combat was high-altitude combat. As long as you fly high enough and fast enough, you have control of the main island. However, what surprised the U.S. military was that the maturity of the first batch of land-based anti-aircraft missiles completely changed the combat pattern. For example, the Soviet SAM-2 missile successfully hit the U-2 high-altitude reconnaissance aircraft in the Vietnam War. This shows that the SAM-2 is also capable of striking a strategic bomber like the female warrior. Not to mention that the Soviet Union later launched the more advanced S-300 and S-400. In addition, the U.S. military's strategic needs changed later in the project. The development of new technologies such as ballistic missiles began to focus on the need for high-altitude, high-speed bombers. So the development of XB-70 is not over yet.