Chapter 1111: Introduce the stealth machine plan to each other

Hearing what the other party said, Qin Guan smiled on his face: "Mr. Gerhard, we have talked about this topic before. If you need it, we can export it to you when we complete the research and development, but if you want If you want to develop it with us, please show your sincerity."
How do we know that you are not here to cheat our experience in the development of stealth machines?
In international cooperation, everyone takes what they need, and oneself wishfully takes out all the technology. What if you are deceived?
"Mr Qin, of course we have the technology, but we want to hear about the general changes you have made on this stealth machine, so that we can also announce our plan to you." Gerhard said .
There was a smile on Qin Guan's face: "Well, let's first say, Tu, you can introduce them to them."
Hearing Qin Guan's words, Gerhard's face was full of joy, and at this moment, Tu Lao took out a drawing from the briefcase beside him. "This is the rough drawing of our J-14 stealth improvement."
Everyone was overjoyed. This kind of design drawing is the first stage of fighter design. When you get the design drawing, you can also get a lot of inspiration.
"To make fighters stealth, the main thing is to reduce the radar reflection area." Tu Lao said: "We start from the nose and use a diamond-shaped nose. This is a combination of the dual requirements of aerodynamics and stealth. in."
In this era, the stealth machines that can be developed are all polyhedrons. It can be said that all stealth is the purpose, and the ability of aerial combat is zero, and Han has begun to take into account the maneuverability of air combat.
"All the interfaces are treated with sawtooth shapes, the cockpit cover is gold-plated, and the air intake has an S-shaped design, which can prevent the engine fan at the rear from being exposed, which is one of the biggest sources of radiation."
"On the rear fuselage, we adopted a double vertical tail that tilts. The control of this vertical tail is particularly complicated. Therefore, we must also use telex operation in this direction to control it. After these upgrades, the cost of the fighter is definitely It will soar, but the combat effectiveness will definitely rise to a higher level."
Mr. Tu almost wrote the book according to the original plan. This drawing was obtained from Qin Guan only recently. For Mr. Tu, when he got this aircraft, he was indeed very excited. Now, the far-sighted aircraft design The divisions have already begun to notice the significant impact of stealth on future air operations.
"Wait, you didn't use a built-in bomb bay?" Gerhard asked.
If you want to be invisible, an important plan is to have a built-in bomb bay, so as to reduce the radar echo. After all, missiles and pylons are also a large source of radar reflections.
"No, if it is improved to a built-in bomb bay, our fighter aircraft will need to be greatly changed." Tu Lao said: "We are a light aircraft, and there is no room for built-in ammunition. If we want to change it, the body will have to be enlarged a lot. After the redesign, the power of the engine will not be enough. You have to find a new engine. In short, such a change is not worth the gain."
"Then stealth performance won't be good."

We use a semi-buried belly design. On the wing hanger, we also use a modified hanger to reduce the reflected radar waves as much as possible.
Tu Lao continued:
This is a kind of twisting. After all, if it is launched from a bomb bay, the complexity of the system will greatly increase."
It is not easy to use a bomb bay to launch the missile. It requires a complex ejection mechanism to eject the missile. When Eagle Country was engaged in the F22 fighter jet, it was successfully developed after many failures.
It can be said that it is easy to modify the shape of the aircraft, but to modify the structure, it will greatly increase the difficulty.
"In this case, the invisibility can't reach a perfect level." Gerhard said. Obviously, Han Guo's design is somewhat perfunctory.
"That depends on the design goals of our fighters." Qin Guan said: "If the stealth ability is completely valued, the others can be ignored. In this case, we can put all the focus on stealth. , To reach a good level, but we are fighters. It must take care of air combat capabilities, even if it is designed with complicated bomb bays, missile launches in bomb bays, and missile launches in pylons, at least a few seconds later Right? In air combat, these few seconds may matter."
Qin Guan was right on this point. The pylon launched the missile and the ignition flew out. If the ventral bomb bay is used, open the bomb bay door and eject the missile. The missile can only be ignited after it has flown out. The steps are a lot more cumbersome and more. Uncertainty.
In a few seconds, it may be launched first by the opponent.
"Furthermore, we have adopted this design, which has greatly reduced the probability of being discovered. If the previous F-14 fighter could be discovered 60 kilometers away, it may only be discovered 10 kilometers now. Kilometers are already visible distances. Our fighters don’t always move in the dark. In the daytime, these ten kilometers are not a big deal, right?
Qin Guan said so, the other nodded, indeed, Qin The analysis makes sense.
"Okay, we are done, please also tell us about the progress made on the stealth fighter."
"Okay, I hope everyone keeps it confidential. We are here to seek cooperation with you with complete sincerity." Gerhard said: "In our country, we are launching a project called Firefly."
Qin Guan suddenly felt happy. These Hans people are really sincere, and they actually told their secret project?
If you think about it again, it’s okay. After all, we have introduced our own stealth aircraft project. Although the other party has established the project, their aviation industry has been incomplete over the years. It is too difficult for them to independently develop a fighter aircraft. , It would be much better if it was jointly developed with Han.
"Our design is a stealth fighter with a polyhedral shape, but it is very different from your design thinking. This kind of aircraft will be an air superiority fighter that focuses on medium-range interception capabilities, using its excellent frontal stealth capability. Strike enemy's non-stealth fighters outside the line of sight."
The other party did not lie, and introduced the other party's project as it was, and also provided everyone with a design sketch. From this picture, this aircraft adopts a tailless delta wing, single vertical tail and belly air intake layout. Its cockpit and front fuselage are perfectly integrated. Although it is not exactly the same as F-117, its design indicators are, It is actually higher than F-117.
According to the information disclosed in later generations, the RCS (radar reflection cross-sectional area) of the "Firefly" is twice as low as that of the F-117.
Listening to Gerhard's words, Qin Guan said: "In other words, this fighter jet designed by you is like an ancient archer, it is used to release arrows from a distance?"
Harold nodded.