The strongest pilot ever

Chapter 243 Full Spectrum Stealth
243 full spectrum stealth
The task of Chen Fei and Li Donghai is actually not complicated, but it is to go to a certain airspace to check two planes that are about to enter our airspace.

For this kind of mission, before the invasion of alien aircraft, it has always been the best choice for our army to fight against foreign troops.

Because it is a peaceful era, it is impossible for foreign fighter planes to really invade, so they generally use the method of playing side-by-side. The pilots fly the fighter planes on the edge of our airspace, sometimes just fly up, but more At other times, reconnaissance planes or electronic reconnaissance planes come over to carry out reconnaissance. At that time, the only measure we can take is to expel them.

However, in those peaceful times, this was already a mission that many pilots dreamed of. This is one of the few opportunities for everyone to show off their skills. It is no exaggeration. As long as one mission is completed, a third-class meritorious service will not be able to escape. Lost.

But now, since the invasion of alien warplanes, there have been fewer such missions, and such missions are already relatively low-level, and are generally carried out by the air force or naval forces responsible for the security of the third line of defense. Frontline troops like Fade Chen and the others were dispatched.

However, because Fade Chen and Li Donghai were flying the J-[-] for the first time, although they performed well in the previous modification training, no one knew what was going on in actual combat. Therefore, the superiors deliberately Give them a few more opportunities to practice, so this mission will be assigned to Fade Chen and Li Donghai!

Fade Chen drove the J-[-] towards the target airspace at high speed.

He easily increased the speed of the J-[-] to Mach [-], so he reached the target airspace in a short while.

Although the J-3C also belongs to the J-[-] series, it has to be said that the quality seems to have gone up to a new level. Even if it soars to Mach [-], the body of the fighter is still solid and solid, and there is no feeling of falling apart. The reason for this is that It is because the J-[-]C has adopted a large number of [-]D printing manufacturing technologies.

The two J-[-]Cs had already flown into the line of sight of the two planes, but the two planes still knew nothing about it.

This is the scary thing about stealth fighters.

The stealth technology of the J-[-]C has made another major breakthrough. Not only is the shape of the body more stealthy, but the paint on the body is also more advanced. It is not only resistant to corrosion and sea wind, but also has an excellent stealth effect.

The most important point is that the infrared stealth effect of the J-[-]C has also reached an unprecedented level.

Previous stealth fighters, such as f35c, f22, and the latest generation of J-[-], their stealth was only for radar, so, at that time, it was not impossible to crack this kind of stealth fighter, just use photoelectric detection Tracking system on it, that is, infrared detection technology!
This is why the J-35D is not a stealth fighter, but it is not completely helpless in the f[-] duel.

However, starting from the J-[-]C, all this has changed, and infrared stealth technology has developed by leaps and bounds.

The fifth-generation aircraft attaches great importance to photoelectric detection technology. Therefore, both sides of the enemy will try their best to conceal their own infrared characteristics.

In order to ensure the high maneuverability of the fifth-generation aircraft, all parties have adopted high-power jet engines, but this will cause the infrared radiation characteristics of fighter jets to become more and more obvious. Therefore, how can high-speed fighter jets be more stealthy in the infrared spectrum? more and more important.

Electromagnetic waves in different bands have different characteristics, and the mechanisms for detecting targets are different, so the stealth technology used for each band is also different.

The radar detection target mainly receives radar waves reflected by the target and secondary radiation.When the size and wavelength of some surfaces and lines of the target are equivalent and form a corner reflector, the target strongly reflects the radar wave, showing a large scattering cross section; the induced current formed by the radar wave irradiating on the target metal part will generate secondary radiation, It also makes the target have a larger scattering cross section.Therefore, corner reflectors should be eliminated as much as possible, strong reflection and radiation sources should be shielded, surface discrete radar scattering sections should be replaced by several facets, special coatings should be used to convert the induced current generated by radar waves into heat energy, and composite materials transparent to radar waves should be used. Manufacturing components can reduce the radar cross section and achieve the purpose of radar stealth.

The infrared detection system works by receiving the temperature difference and different infrared radiation characteristics between the target and the background.

Because of the short wavelength of passive detection and infrared light, the role of corner reflectors is not very useful in infrared stealth technology.

According to the characteristics of thermal radiation and infrared detection, infrared stealth is the comprehensive use of various technical means to eliminate the temperature difference between the target and the background, so that the radiation characteristics of the target are as similar as possible to the background;
When the temperature difference between the target and the background cannot be eliminated, it will try to reduce the brightness and contrast of the thermal radiation source, so that the infrared detection system cannot see or see the target clearly;
For strong radiation sources that cannot be eliminated, the direction of thermal radiation is limited to increase the difficulty of infrared detection.

Proceeding from this principle, the J-[-]C adopted brand-new infrared stealth measures, and carried out a large number of researches on the three thermal radiation sources of its tail nozzle, gas jet and surface aerodynamic heating, and finally achieved considerable results.[-]. Use a rectangular or binary tail nozzle to increase the contact surface between the tail nozzle and the outside air. This not only uses the external cold air to dissipate heat from the tail nozzle, but also uses this part of the cold air and the jet of the tail nozzle. The high temperature gas jet is mixed, the temperature of the gas jet is reduced, and the infrared radiation of the tail nozzle and the gas jet is weakened.Second, use the fuselage or tail to block the tail nozzle, making it difficult for infrared detectors to detect from below and from the side.Three, adopt high-power turbofan engine, reduce or eliminate the use of afterburner, and reduce the infrared radiation produced by afterburner.Fourth, composite materials are used in the aircraft structure to shield the heat radiation inside the fuselage.Fifth, spray infrared stealth paint on the surface of the aircraft to change its emissivity and reduce the infrared radiation on the surface.Sixth, put additives in the fuel to move the infrared spectrum radiated by the high-temperature gas jet to a wave band that is easily absorbed by the atmosphere.

The biggest breakthrough of the J-[-]C is the fifth and sixth items. First of all, it uses a brand new paint. This paint is said to be the latest research success of scientists from China, Japan and South Korea. It can not only greatly reduce the air resistance of the fighter, but also It also significantly reduces the full spectrum of radiation, including radar and infrared;

Secondly, in terms of additives, the scientists of our army have also made a major breakthrough. Their newly invented aviation fuel additive can not only greatly improve the combustion effect of aviation gasoline, but also greatly reduce infrared radiation.

Therefore, the stealth of the J-[-]C at this time is no longer just radar stealth, but full-spectrum stealth, and all detection methods are difficult to detect.

This!
It is the real stealth fighter in the legend!

When Fade Chen and Li Donghai flew within the line of sight of the two fighter planes, the two fighter planes still didn't know it, and they were still flying leisurely. They were eager to try a few times, and seemed to want to go to our airspace to make a test !
Poor foreign army!

(End of this chapter)