"I agree." Jiang Yanhai nodded seriously, he is not a rigid person.

"Well, that's it. When are you going to do it, kid? I'll have the relevant materials prepared for you. Li Yunfeng said with a smile.

"There's no hurry, anyway, if you're ready, just tell me." Jiang Yanhai thought for a while and said, it's not okay if he's too anxious, this matter can't be rushed, he must have failed a few times at the beginning, and he can't succeed if he can't come up.

"Good. Are you done? Li Yunfeng nodded and looked at Jiang Yanhai and asked.

"I have one more thing." Jiang Yanhai said seriously.

"You say." Li Yunfeng nodded disappreciatively.

"I like Li Ruobai, I hope I can marry her one day, you are her father, do you have any requirements for me? I will do my best to do it. Jiang Yanhai said seriously.

Jiang Yanhai's words made Li Yunfeng stunned for a moment, and after a long time, he couldn't help but say, "Boy, are you proposing marriage?" ”

"That'...... You should be. Jiang Yanhai nodded seriously.

Li Yunfeng looked at Jiang Yanhai seriously, Jiang Yanhai didn't dodge, the eyes of the two people collided in the air like this, looking at each other, looking at this kid's eyes, Li Yunfeng knew that he was very serious.

After a long time, Li Yunfeng nodded: "Request, I really have one." ”

"Uncle, you say." Jiang Yanhai said.

"Don't let me see you come back with the flag one day, I don't want Ruoruo to be sad, I don't want her to suffer for a lifetime, if you want her to be happy for a lifetime, just remember this matter, you should know how painful she will be if there is a day." Li Yunfeng's expression was unprecedentedly serious.

Jiang Yanhai nodded heavily: "I'll do my best." ”

"If you don't talk at all, even if you can't hear it, I'll have to trouble you when I go down." Li Yunfeng glared at him fiercely.

"Yes!" Jiang Yanhai stood up directly and said loudly.

"Alright, sit down." Li Yunfeng waved his hand and sighed, these things are just everyone's good wishes, but to do such things, how can there be no sacrifice, but there are some things that can't be said like this.

"You ask this question, so you shouldn't be very busy next?" Li Yunfeng looked at Jiang Yanhai and asked.

"Well, I want to study at the National Defense University." There is no need to hide this matter from Li Yunfeng and them, so Jiang Yanhai also answered very simply.

Li Yunfeng glanced at Jiang Yanhai with a strange face, Major, going to the National Defense University for further study? What does this mean, it should be very clear, right, this is another promotion? Li Yunfeng didn't know that Jiang Yanhai was already a lieutenant colonel.

In fact, he, the lieutenant colonel, did not know much, only a limited number of people.

"Well, it's good to go to school, and if you go to school, the two of you can see each other okay, which is a good thing for you." Li Yunfeng nodded immediately, this kid is not worrying at all, but it is good to go to school, there are some things that will not be dangerous if you go to school, right?

This is much more reassuring than in a foreign country, what tasks are performed.

"Well, I can meet Ruoruo when I have time." Jiang Yanhai nodded, he has studied very well in learning, and he is not bragging, without a reasonable learning method, it is impossible for him to get a degree certificate and graduation certificate at the age of 18.

"That's good, okay, I'll prepare it for you in the laboratory, do you have any requirements?" Li Yunfeng asked.

"Is there a wind tunnel to blow in?" Jiang Yanhai thought for a while and asked.

All the data design of the entire phantom is in Jiang Yanhai's electronic warfare program, although the complete drawings stored in the electronic warfare program are indeed only engine design drawings, as well as engine materials, including special ratio of aviation fuel, and a new stealth coating.

There is no detailed information on the structure of other aircraft designs.

But Jiang Yanhai has all these materials in his mind, you must know that when the ground crew is maintaining, there is the maintenance data of the aircraft, and among the countless deaths, several times he asked for the maintenance data of the aircraft.

Therefore, the appearance and structure of the phantom are all exactly the same in Jiang Yanhai's mind.

"Wind tunnels are not difficult, my country has the largest wind tunnel group in Asia and even the world, and this only costs money." Li Yunfeng said very simply.

"Okay." Jiang Yanhai nodded, the blowing tunnel often uses the model of the aircraft, so there is no need to directly manufacture the aircraft, he does not have to be the shape and structure of the phantom.

However, the shape and structure design of any kind of aircraft must have been blown out by countless wind tunnel experiments, including the fantasy simulation battle.

In other words, the appearance of the phantom must be the result of countless wind tunnel experiments, although in reality it has to be repeated, but rash changes are not the best choice.

Now let's start from scratch and then improve.

Let's talk about the phantom first, don't look at the most important heart now, but the other data is not so easy, fortunately, the full set of engine drawings contains a full set of control programs, which means that the avionics part can be saved by itself.

As for the layout of other internal structures, you can actually refer to J20, of course, the internal design data of J20 and so on cannot be given to them casually.

In this regard, I believe that since Li Yunfeng has assembled an aircraft design and research institute here, there must be talents in this area, and they can't do nothing, right? These internal wiring arrangements and so on, will be left to them.

Anyway, let's figure it out first, fortunately, Jiang Yanhai knows a lot of things now, first of all, he is a powerful hacker and an expert in electronic warfare procedures, so the tactical cockpit layout inside the phantom and so on are all in his mind.

In addition, with regard to the division of radar, what is the specific functional design of each part of the fighter?

Including the position of the landing gear, the position of the built-in magazine, the position of the side magazine, and the different pylons used by the missile, whether it is a rotating pylon, or a front and rear pylon, he has data in his mind.

What is missing now is the arrangement of cables inside the fuselage, the arrangement of fuel tanks, etc., but these aspects are relatively simple.

Reverse reasoning will do the trick.

To put it bluntly, copy it, and it must be similar to the J20 and the unmanned stealth fighter in reality.

"Okay, let's go out if it's okay, that girl will start thinking about it outside again after a while." Li Yunfeng said with a smile.

"Yes!"

Jiang Yanhai stood up and followed Li Yunfeng outside, and sure enough, when they came out, they saw Li Ruobai dangling in the living room.