.In fact, the US military's stealth fighter technology is not unbreakable. It is just a top propaganda. In addition, it is also the target of war for US stealth fighter jets. It has always been small and weak countries, and has also created a one-sided situation. If they meet Russia head-on, they will know that the stealth of this fighter jet is actually very difficult." A person in charge of the laboratory explained to Fan Wubing.

"Oh. So that's it." Fan Wubing nodded.

In fact, there is a most important anti-stealth radar that has been revealed during World War II and is still in use today. Most of these are high-frequency and high-frequency long-range air reconnaissance radars.

Most low-detection devices use technology to prevent the discovery of search radars and fire-controlled radars at the centimeter wavelength level. VHF and high-frequency radars are radars with wavelengths from decimeters to meter levels.

"Generally speaking, the radar cross-sectional area of ​​an aircraft increases with the increase of the wavelength of the illuminated radar. In addition, when the radar wavelength is on the same order of magnitude as an aircraft or a certain component of the aircraft, the radar wave resonates with the aircraft, thereby expanding the radar cross-sectional area of ​​the aircraft. The longer wavelength and resonance phenomena make it possible for the reconnaissance of the very high frequency and high frequency radar to detect stealth aircraft. However, because the resolution of the two types of radars is low, accurate aiming and fire control information cannot be provided." The laboratory experts showed the schematic diagram on the computer screen while introducing Fan Wubing.

In fact, Fan Wubing has only a little understanding of this. Although he has learned some ordinary physics before, it is obviously not enough to put it here. However, if you need to listen to experts to explain the principles, you can still listen to the building.

After the Gulf War, the Russian radar industrial forces began to take a variety of measures to digitize the VHF and high-frequency radar systems to improve the anti-stealing capabilities of such radars. Now, the resolution and signal processing capabilities of Russian old radars have been greatly improved. Some newly developed radars such as Xinjia Automotive VHF Adaptive Electronic Scanning Array Radar may have great anti-stealing capabilities, but they have not been reflected in actual combat, and no one knows what the country is doing.

Other newly developed conventional radars may also have anti-stealth capabilities, such as Lockheed Martin's high-altitude regional air defense radar, Israel's turquoise radar system, which have long detection distances and high resolutions in the high-frequency band.

"There is another anti-stealing technology, Hongxi. Optoelectronic systems, including infrared search and tracking and high-magnification optical devices, the airspace detected by these systems is limited and must be guided by other sensors. In addition, the detection effectiveness of infrared photoelectric is greatly affected by clouds and low luminance. Stealth aircraft can deal with the reconnaissance of infrared photoelectric devices through thermal signal management, stealth flight profile and low detectability technical paint." Experts explained to Fan Wubing, "In fact, the American publication that was created in Serbia was used."

There is also an anti-stealing technology with greater potential, which is a millimeter-wave imaging device, which uses radio signals naturally produced by all targets. Millimeter-wave can penetrate clouds and low-visibility areas, and the radar can transmit waveforms and then receive and process echoes. The Pachy Longbow Hellfire system is a typical example of millimeter-wave radar. It is said that the Russian defense industry forces are already developing millimeter-wave air defense missile seekers, and several other major powers are also carrying out similar research.

Overall, although some technical equipment has strong anti-stealing capabilities, some of their defects limit the effectiveness of air defense. Traditional radars are susceptible to electronic warfare and air-ground weapons reconnaissance and attacks, and the monitoring system cannot provide tracking information, while the reconnaissance effect of infrared photoelectric and micro-wave systems is relatively limited.

"In contrast, passive radar has strong concealment capabilities and can work in all-weather conditions. It can carry out medium-range and long-range reconnaissance activities, and has great potential in reconnaissance, tracking and aiming stealth aircraft. Therefore, it is the most powerful technology in anti-stealth technology." Finally, the experts summarized it.

Fan Wubing nodded repeatedly when he heard this, but he was a little murmured in his heart, saying that this thing was a question discussed by experts, and talking to him was a bit like a man. Who knows whether these technologies can work and whether they can be used in actual combat?

However, he noticed a problem with the slash, "Since anti-stealing technology has been strengthened, the future fighter jets may not have any hidden dangers, so is there still a market for studying stealth technology?"

"Many people have indeed raised this question." Experts have a bit of appreciation for the question raised by Fan Wubing. In fact, in recent years, because the mouth was shot down, many people think that since such advanced stealth fighter jets have been shot down, what is the use of studying stealth technology?

On the contrary, the shot down of Likou over Yugoslavia further demonstrated the importance of stealth technology to the United States.

The United States regards stealth technology as a technology that is the most preferred development, such as purchasing new stealth fighters or improving them. In short, stealth technology has become the core means for the United States to seize air supremacy.

"As stealth systems become more and more common, the states of non-stealth systems are becoming more and more powerful, and most of them are used to newly developed military aircraft and ground combat systems. Countries around the world have invested a lot of money in the research and development of stealth technology. Since the US Air Force will retire all the fighter jets in a few years, the number of stealth combat aircraft in the US Air Force is now in short supply." Experts explained to Fan Wubing, "The current stealth fighter jets equipped by the US Air Force include 20 2 bombers and nearly 200 blade fighters, and the Joint Strike Fighter jets is expected to be equipped with troops in ten years. According to the plan, the United States will purchase more than 2,400 joint strike fighters, with a delivery cycle of 30 years. At the same time, Russia, China, India, Japan and other countries are developing stealth fighters. In short, countries have a great demand for stealth technology and technology is constantly developing.

After hearing this, Fan Wubing nodded, "Demand is the market, and the market is the profit. It seems that the future prospects of our company are still very bright. At least we can develop some stealth fighter jets and sell them to some small countries for some money to spend."

After he said this, the experts stopped talking. Perhaps because everyone had not adapted from this system transformation, they still habitually chose to self-digest and absorb some top military technologies, and never considered commoditizing and then selling them to foreigners.

Seeing that everyone seemed to be suspicious, Fan Wubing blew up and said, "Our country does not engage in hegemony, nor do we bully small countries. This lacks practical atmosphere to test new weapons. It is obviously impossible to achieve results by relying on the military to fight on its own. In the end, it will only lead to a comprehensive decline in military technology, and the gap between the United States and Russia is getting bigger and bigger. Therefore, selling arms is an inevitable path we have to take in the future. Americans fight all day just to maintain their military advantages, and at the same time, selling some arms to make money?"

After hearing Fan Wubing's words, everyone thought this was the case. However, even if the company develops advanced stealth technology or anti-stealth technology, it will take even more time to be used in actual combat.

I just don’t know if the product can be sold abroad for actual combat after the marketization of the product. If this goal can be achieved, making money is the second. You can also see how the actual combat effect is, and it is easier to make corresponding changes.

The technological progress of war weapons is indeed inseparable from actual combat inspection, which is also a practical situation.

Fan Wubing then visited a series of laboratories to learn about the progress of invisible technology.

Simply put, stealth is achieved through a series of technologies, which can make it difficult for a platform to be exposed and attacked. Generally speaking, it requires reducing the characteristics of the aircraft's active signal and passive signal. The active signal is all visible signals scattered by the stealth platform, while the passive signal is all visible signals scattered by the stealth platform under external illumination. Reducing active signals generally uses low interception probability technology, and reducing passive signals generally uses low detectability technology.

If the aircraft can be seen through an infrared sensor at a distance of twenty kilometers, the effort to make the aircraft invisible at five miles is futile, and designers focus more on reducing the signals of aircraft radar and infrared sensors.

By improving the shape of the fuselage and using radar wave absorbing materials to reduce the cross-sectional area of ​​the radar. The fuselage can reflect radar signals and deviate from the direction of the emitter. The improved fuselage shape is mainly for traditional radars. The receiver of the traditional radar is configured with the emitter. It has poor effect on the receiving and split radar. The radar wave absorbing material enhances the stealth force of the fuselage by absorbing radar energy and reducing the intensity of radar echo.

The technology in the research room is mainly to relay radar energy or ionize the boundary air around the fuselage, so that the stealth collector can actively cancel the radar echo, but this is indeed more difficult.

Fan Wubing was quite moved after the visit, but the skin that he had gotten on the Kursk in front of him did not appear in the study of Southeast Heavy Industry. According to Minister Zhang of the General Equipment Department, this matter is of great importance, and the strategic nuclear submarine is the country's cavalry city. It is very important.

Therefore, all research work on nuclear submarines is done by the military itself. As for fighter stealth technology and anti-stealth technology, the military is just letting Southeast Heavy Industry do it, and even provides a lot of existing research for their reference. They are optimistic about these technical research.

After Fan Wubing learned the news, he was still a little regretful. After all, the British American nuclear submarines were provided by private arms dealers, and this is the gap.
Chapter completed!