Chapter 1425: Stealth coating

As a cross-era fighter, it is of course impossible to have only a stealth. After all, the fourth-generation fighter requires 4S capabilities.
Stealth is just one kind, supersonic cruise and super maneuverability, both need to be achieved through powerful engines.
Under the current situation, supersonic cruising must be given up. Without a powerful engine, it is impossible to obtain the supersonic capability without turning on the afterburner. Although this capability is very powerful, it must wait until a more powerful engine appears. , Don't think about it now.
After all, the ability to master the technology of the third-generation engine is already unprecedented, and it may take ten years to further improve. This is still Song's conservative estimate.
Using the current F110 engine to test flight is the safest way. With this engine, it is impossible for one's own side to have supersonic capability, nor is it possible to have one's own supermaneuverability.
Because the super maneuverability depends on the vector nozzle to advance.
Fighter nozzle, the scientific name is exhaust system, commonly known as chrysanthemum, this thing looks very small, but it can bring great effect.
Nowadays, the convergent-expanding nozzle is commonly used. As the flight status changes, the motor drives the pull rod to change the critical cross-sectional area and exit cross-sectional area of ​​the nozzle, so that the airflow can be fully expanded at the exit as much as possible.
A good nozzle can increase the jet efficiency by about 8%, which is definitely a lot.
This is also a commonly used technology for the third-generation aircraft, which is much better than the ejector nozzle of the second-generation aircraft. However, in the fourth-generation aircraft, a vector nozzle is needed.
The vector is the ability to change direction. This nozzle not only allows the aircraft's engine to jet backwards, but also deflects, so that the thrust component generated by the deflection of the nozzle or tail jet can replace or enhance the original aircraft control surface. The control function of the aircraft controls the flight of the aircraft in real time, which can greatly improve the maneuverability of the aircraft.
The nozzle of the Sea Harrier fighter can deflect downwards. This is a thrust vectoring technique. Of course, it is not to improve maneuverability.
The vector nozzle of a fighter jet does not require a 90-degree deflection, even a 30-degree deflection can provide a stronger deflection torque, making the fighter more maneuverable.
Now, the vector nozzle has been pre-researched by various engine manufacturers, and the engine used in the later F-22 fighter jets is equipped with a binary vector nozzle, which can deflect up and down.
Xiong's Su-35 has an omnidirectional vector nozzle, and even used this technology on the Su-30, and exported it to Baixiang, which seems to be high-tech.
But Qin Guan knew that this thing was not difficult to study out, and it was difficult to be reliable. The vector nozzle exported to the White Elephant Country has a lifespan of only 30 hours. This thing is useless no matter how advanced it is, because its reliability is too poor.
In later generations, Han's J-20 fighter jets were also pre-developed with vector nozzles, but they were never installed on the aircraft. This was a problem of reliability.
What if you don't have a vector nozzle and want to achieve first-class maneuverability? Of course, continue to work the aerodynamics, making the aerodynamics of this aircraft so complicated, that is, even without the vector nozzle, it can be relatively resistant to foreign fourth-generation aircraft!
Our engine technology is not enough, and we use pneumatics to make up for it! This is what Song Lao thought.
Qin nodded his opinion: "Yes, this idea is very good. I look forward to your good news. If the funds are insufficient, our North Industries Corporation can also provide funds."
The research and development of fighter planes requires a large amount of funds, and now it is just a wooden model. If a prototype is built in the future, it will require a huge amount of funds.
It is too difficult for companies to conduct self-study, but now Qin Guan, it is not bad for money, and it is perfectly fine to provide some.
Old Song shook his head: "In terms of funding, it's not an urgent issue for the time being. We have an even more urgent difficulty now."
It is not easy for Qin Guan to come once. Since he is here, of course he is looking for something good for Qin Guan.
What are the difficulties?
"In terms of the aerodynamic layout, we have tried our best to use the radar reflection model calculation to get a good result, but even if we do this, we can't achieve the optimal effect. We still need a stealth coating."
The stealth machine is not only the design of the appearance, but the stealth coating is also a key. This thing is also a project that many countries have invested heavily in.
There are even some legends. For example, the people of the chicken country want to do it, but they can’t figure it out. So, I thought of a way and asked to see the F117 of the Eagle country, and said some flattering words. As a result, the Eagle The Chinese let him go. After they went, the Eagles said they could only see but not touch. However, the Ji Guoren touched it with his hands. Just like that, a little bit of invisible paint came out of his nails. Layer, brought this thing back to Chicken Country, and as a result, they got their stealth coating out.
Of course, this is too magical, and Qin Guan sees this with the mentality of reading third-rate magazines.
At the same time, there is another example. Eagle F-117 was knocked down by an old Sam missile. After that, it is said that the fragments were sent to Han, and Han carried out on this basis. Research and development, Han Guo's stealth coating, began to shine.
Of course, these are the opinions of some third-rate editors. Stealth coatings are not so easy to handle. Even if there are samples, the craftsmanship is not known. It is still useless. Just like Chobam armor, samples are useless. Without knowing the craft, it is impossible to make it.
At present, our research on stealth coating is still zero, what should we do?
Of course there is a way. In Qin Guan’s head, there is already a good thing in mind. In the past, he planned to exchange the F-117, but he never paid attention to it. This time, taking advantage of this opportunity, he just Let’s exchange F-117, so I can give Song Lao a better sample to study.
F-117, a big lie that the eagle countryman told in later generations, destroyed it all by saying anything in front of the public, the result? They were sealed up in secret, and could be used at any time. This kind of aircraft is delicate and requires an air-conditioned hangar. It must not be in the cemetery that I am familiar with.
The stealth aircraft of the Eagles are very delicate. The B-2 bomber, every time it is dispatched, even needs to re-spray the stealth coating of the aircraft. Only the wealthy Eagles are willing to do this, even the F-35. I have seen the phenomenon of stealth coating exploding.
Thinking of this, Qin Guan couldn't help it, and went in to look for it!