The American XB-70 bomber has a speed of 3 times the speed of sound, and the bombers cannot catch up with the missiles
Author:Space Time:2022.08.06
The speed of this aircraft made by the United States exceeded the speed of three times. Generally, the missiles could not catch up with it. The cost was even more expensive. It was worth the three aircraft carriers, but it was unfortunate because it was accidentally destroyed!
Since the birth of the aircraft, the transformation of propellers to jet has been experienced, and the speed of increasing the aircraft has been the goal pursued by the aircraft designer. Especially since the 1950s, humans have opened the exploration of breakthrough barrier. What is sound barrier? Woolen cloth?
What is a sound barrier?
Simply put, it is the obstacle of sound formation. In fact, the sound is not completely invisible, but in the form of waves, so it is also called sound waves in physics. The speed of sound waves in the atmosphere is 340m/s. Or when this speed is exceeded, the plane can catch up with the sound of their own flight.
The sound waves are constantly accumulated in the first half of the aircraft and the fuselage, and the influence of the pressure forms a wave surface. Similar to the water waves stimulated in front of the speedboat, it has hindered the forward of the aircraft.
To overcome this obstacle, the speed of the plane is far more than the sound, and the sound waves are left behind.
The XB-70 bombers developed by the United States in 1958 can reach 3 Mach. Mach is a speed unit for the aircraft. 1 Mach is the same as the speed of sound speed, and Mach 3 is three times the speed of sound.
As a bomber, it was able to reach such a high speed at that time, which can surpass the speed of the Soviet missile and fighter. The ability of the initiative is very strong, which can not only carry out effective attacks but also protect its own safety.
This type of aircraft made a total of two. The first air was flying in 1964, and the single -machine price was as high as US $ 750 million.
It may not be high for a small goal now, but the cost of the first nuclear -powered aircraft carrier enterprise built in 1958 is only $ 450 million. At that time, the cost of conventional power aircraft carriers was cheaper, and the money to build this bomber can build three conventional aircraft carriers.
Unlike many hypersonic concept planes proposed by contemporaries, this aircraft has really performed many flight experiments, but it is also because of experimental flight that caused the tragic fate of this aircraft.
The American XB-70 bomber is called the incarnation of the god of death, but it cannot change the tragic fate of being destroyed. How powerful is this bomber? How did it crash?
The XB-70 bomber was at the beginning of the development of the development. From its codenamed Valakili, it can be seen that Valkili is the goddess of death on the battlefield in Nordic mythology. And the shape of the XB-70 is indeed like a swan.
Domestic translation of it into a female martial arts god also reflects this bomber -like slender shape like a female. Don't look at the name to get feminine, but its strength is very powerful.
The first flight achieved a speed of 3 times the speed of 20,000 meters high. The world is stunning. The maximum range can reach 8,000 kilometers, the maximum take -off weight is 250 tons, and the load can reach more than 10,000 kilograms.
And these are due to the power of the aircraft. It is equipped with a force -type turbust engine with 6 major thrust, and can also carry nuclear bombs. The design of this aircraft is to achieve the military suppression of the Soviet Union, so the United States attaches great importance to this and has conducted a dozen flight experiments in a dozen times, but after the Americans are full of confidence to create the second aircraft, The second plane had an accident in the air.
In 1966, the XB-70 bomber No. 2 machine, which was named outside, collided with the fighter jets in the air formation in order to cooperate with the shooting promotional videos. Due to the huge body, the fighter exploded on the spot, and the XB-70 dangled due to the damage of the tail wing. Yoyo crashed in the desert.
Despite the successful skydiving, the United States has never continued to build the XB-70 fighter, and even the No. 1 aircraft was sent to the museum in 1969.
After that, the United States has never restarted this project, and the third machine in the design has always become drawings and cannot become a reality. The XB-70 did not cause destruction on the battlefield but let it go to the tragedy of destruction. Some people say that this is that the United States attaches too much attention to this plane, and the technology that has surpassed the times has caused the plane to be overwhelmed.
After being in service, he encountered opponents and poured a large number of ZB-70 bombers in the United States.
The XB-70 bomber developed by the United States was super strong and it was crashing without investing in actual combat. It was still because of shooting a promotional video. It was really regrettable. Essence
When flying in 1964, it was on fire when it landed. In 1965, the tip of Mach Macht speed flight experiment at a high altitude was dropped off. As a result, the No. 2 machine crashed because of an air accident, which may be the trick of fate.
Because XB-70 is to achieve the high speed of Mach 3, the body needs to bear the high temperature of 400 degrees Celsius. To this end, the United States has changed body materials from ordinary aluminum alloy to titanium alloy. However, there is no large number of titanium alloys in the United States. It needs to be imported from the Soviet Union. The price can be imagined, so the cost of this aircraft is also very high. Even the lack of titanium alloys in the manufacturing period. A behemoth is very weak because of the huge mobility in the air. The reason why the United States abandoned and continued to develop this aircraft was because cost -effectiveness was really not high.
In 1969, the Soviets were equipped with a MiG 25 high -speed high -speed interceptor, which could also achieve 3 Mach of Mach at 20,000 meters high.
The American spear encountered the shield, so the No. 1 machine of the XB-70 without crashed was also sent to the museum in 1969.
However, the real opponent of the XB-70 may not be MiG 25. Due to the emergence of high-speed air defense missiles, no weapon system is unable to adapt to the battlefield without any weapon system.
Russia MiG-25
In modern times, both fighters and bomber no longer pursue the hypersonic speed, but set up another new path, focusing on the development of maneuverability and stealth performance, and the XB-70 bomber also witnessed human exploration and practice of speed.
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