On December 2, local time, the new generation of American stealth bomber B21 was unveiled as scheduled. The overall design is highly similar to the previous generation of American stealth bomber B2.
B21 publicly debuted on the scene
Americans began to brag about how powerful it is, and even called it the sixth generation machine.
So is B21 really that powerful?
First of all, we must admit that B2 and B21 are both very advanced stealth bombers, but it would be an exaggeration to say that we are helpless in the face of them.
Although it has only made all-round improvements compared to B21, it would be too exaggerated to say that it has a qualitative leap.
Overall, B21 can be regarded as an improvement type of B2, and there are 4 improvement directions:
, the first is to reduce the production cost and usage cost of stand-alone machines.
specific practice is to apply mature technologies in large quantities without pursuing extreme cutting-edge technologies. At the same time, it also appropriately reduces the single-machine body shape, thereby reducing the cost of single-machine material and usage costs.
B21 real body
Second is a verification platform for some concept technology of the sixth generation machine.
The specific method is to integrate the "loyal wingman" command and control platform on B21, integrate electronic suppression systems, etc.
is to further reduce its stealth performance.
, for example, further reduce the number of tail sawtooths; improve the surface processing process; intake is flattered, further reduce the radar reflection section ; the exhaust nozzle is further flattened to improve the exhaust cooling effect and further reduce infrared characteristics.
Fourth, make a lot of modernization improvements based on B2.
For example, radar avionics system and engine are further improved based on B2.
Generally speaking, B21 is smaller and cheaper than B2, but the most important radar stealth performance and infrared stealth performance have been further improved, and the discovery is more difficult.
So, is there any way to deal with it in our country?
In fact, after the stealth aircraft such as F117 and B2 were exposed, our country attached great importance to it, and at that time it began to study and discover its methods. At present, my country has a variety of response methods.
Foreign media reports Venezuela successfully discovered the F22 stealth fighter with JY27 radar
The first is of course anti-stealth radar . JY26 and JY27 anti-stealth radars have long been exported to the outside world, and their own models will only be more advanced. Among them, Venezuela used the JY27 radar to successfully discover and move away from the US F22 stealth fighter jet that attempted to sneak in its airspace.
The second is an advanced infrared detection system. Although the infrared characteristics of have been further reduced, they cannot be completely eliminated. As long as the sensitivity of the infrared detection system is further improved, they are still able to discover it. In May 2021, according to domestic official media reports, Chinese local company Ruichuang Micronano released the world's first 8μm infrared thermal imaging detector chip. This marks that my country's infrared detection technology is at the world's leading level.
The third is the quantum imaging detection system. Using quantum technology, even in the dark, it can still identify stealth targets. In 2011, a scientific research team led by Han Shensheng, a famous quantum optical physicist in my country, first verified the engineering feasibility of ghost imaging technology through ground testing around the world, and the research and development progress was ahead of its main competitor, the US Army Research Laboratory for a full three years.
Test results of my country's ghost imaging technology
This is just a part of the anti-stealing technology exposed. How many are there not exposed?
Therefore, we do not need to exaggerate the threat of the new generation of stealth bomber B21 in the United States. If it dares to invade Chinese airspace, there is still a high probability that it will be discovered. Once discovered, the B21, which has a weak flight speed, cannot escape the pursuit of various supersonic fighters and advanced missiles in my country.
Of course, we still cannot take it lightly based on the principle of lenient information on the enemy. , on the one hand, must speed up mass production of H20, after all, offense is the best defense; on the other hand, we must continue to develop anti-stealing technology and enhance anti-stealing capabilities.
#The new generation of stealth bomber B-21 in the United States made its debut#
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