Chapter 43: New Modifications

The 611 side moved quite quickly, and two days later, Chang Haonan saw Lu Yuying, who hurried to the capital by plane.

After the group meeting yesterday, he specially opened the system to take a look and found that the scientific research points had become 36 points.

Obviously, despite what he said that he had done before, the audience below was no longer 4 professors but most of the faculties, many of whom were quite influential, so he still received 10 research points.

And Lu Yuying, who is sitting in front of him now, although there is only one person, his influence will not be smaller than the hundreds of people added up yesterday.

In fact, when Chang Haonan just received a call from this person yesterday morning, he even felt for a moment that he was afraid that he was not a liar.

After all, his paper hasn't been published yet.

Even if I figured out the ins and outs of the matter later, I felt a little confused.

The name Lu Yuying may not be well-known to the outside, but it is thunderous in the aviation system, especially in this era.

Because the J-7C/D model is not a success, and Song Wencong has served as the chief designer of the No. 10 project, he is currently the person with the most voice in the J-7 series of aircraft models.

Although the purpose of publishing the paper is to let people within the aviation industry see it, Chang Haonan really didn't think that the first person to contact him would have such weight.

"Hello, Chief Master Lu."

"Comrade Xiaochang, it's a pleasure to meet you."

After meeting, the two shook hands, and then sat down in a small conference room specially arranged by the college.

Although Lu Yuying's status in the aviation system is high, his identity is sensitive after all, and his itinerary is not easy to publicize, so the only people in Beijing Airlines who know about this matter are Du Yishan and Tang Lintian.

The latter really didn't expect that only ten hours later, he would see this student again on such an occasion.

In fact, even Tang Lintian didn't need to know, but Du Yishan suddenly said last night that he was going to Shengjing for a meeting, so he handed over the reception to him.

Since he had already communicated on the phone once yesterday, Chang Haonan was also prepared. After sitting down, he took out a few floppy disks containing engineering documents from his school bag, as well as the full version of the calculation instructions that were handed in at the earliest.

Seeing this, an assistant next to him opened his laptop and inserted the first floppy disk into it, while Lu Yuying put on his glasses and began to flip through the paper document.

"Comrade Xiao Chang, I'm a little curious, since you deliberately omitted part of the content in the article published in the journal, why did you take it out so happily now?"

Lu Yuying raised her head slightly, looked at Chang Haonan who was sitting opposite and asked.

"I don't boast that the design methods I have embodied in these engineering documents should be relatively advanced in the world, so at least in a short period of time, I can't just let foreigners learn from them."

This is not the first time Chang Haonan has been asked a similar question, so he replied almost without thinking:

"And now that you are Chief Master Lu who has come to ask in person, then I should have no reservations, after all, these studies are originally intended to enable us to build better planes in Huaxia."

After hearing this, Lu Yuying's originally slightly narrowed eyes widened slightly.

And it's no wonder he was shocked.

Chang Haonan's idea was normal 20 years ago or 20 years later, but in the mid-90s, it was indeed quite rare.

After being silent for a long time, Lu Yuying nodded: "To have this kind of consciousness is worthy of Comrade Xiaochang!" ”

This sentence made Chang Haonan a little confused, why did the other party suddenly show that he knew himself before?

In fact, because Chang Haonan already knew Lu Yuying's name, when the two talked on the phone yesterday, they introduced themselves quite briefly.

In addition, Du Yishan, who is a mentor, did not show up today, so just like Tang Lintian yesterday, Lu Yuying still does not know that Chang Haonan's true identity is a student, and he has always thought that the other party is a young teacher poached by Beijing Airlines from abroad.

And in this kind of year, when everyone else is rushing their heads to go abroad, it is natural to choose to take the initiative to return to China, and it is natural to show such a high consciousness.

That's what I just said about the slightly strange exclamation.

……

After all, Lu Yuying is very familiar with the J-7 aircraft, and has done some research on the design of the mandibular air intake before this, so it only took about 40 minutes to read these technical documents provided by Chang Haonan.

"Comrade Xiao Chang, the completion of your design...... It's really far more than I could have imagined. ”

"Chief Engineer Lu praised, although I am very confident in my own inlet duct/cone precursor integration design, but when it comes to the overall design of the aircraft, it can only be regarded as a beginning, and many details need to be perfected and optimized by wind tunnel data, so ......"

Before Chang Haonan's words were finished, Lu Yuying waved his hand:

"I can see these without you saying this, but you can give such a preliminary design plan alone in the absence of relevant hardware, which is already very amazing, if I didn't see it with my own eyes, I wouldn't believe it myself."

"As for the work in the future, the people in our aviation industry system are not eating dry food, do we still have to wait for people to feed everything to their mouths?"

Hearing this, Chang Haonan also laughed.

Indeed, in the last life, without the help of his plug-in, the comrades in the aviation industry didn't build the J-20 15 years later, in 2011?

I did underestimate their ability to act a little just now.

"So, I don't know what you think of this design ......"

Chang Haonan asked tentatively again.

Although the purpose of being a stepping stone has been exceeded in the first place, he will never mind eating two fish and two fish in order to gain more research points and experience points.

In the previous life, due to the lack of relevant experience, the J-7FS project actually had a strong experimental meaning from the beginning.

The S in the model name FS stands for "test".

But now, with a more complete design method provided by itself, I wonder if there is an opportunity to turn the J-7FS into the J-7F?

"To tell you the truth, I do have a few more about the design of the radome, that is, the conical precursor, I would like to consult Comrade Xiao Chang for your opinion......

In fact, when I saw that paper for the first time before, Lu Yuying already had a relatively clear plan in his heart.

After seeing the engineering documents provided by Chang Haonan, he was even more ecstatic to find that the actual performance potential of this design was even greater than that written in the paper!

So he had the bolder idea of further increasing the diameter of the radome to 600mm to install a new type of pulse-Doppler (PD) radar under development.

The resulting weight gain can be compensated for by changing the radome wall structure from a solid half-wave wall to a lighter C-shaped interlayer.

But consider that in this design, the radome itself is also part of the air intake structure and is responsible for the primary compression of the incoming stream.

So this seemingly small change may affect the whole body.

That's why I want to consult Chang Haonan's opinion.

Obviously, for this model, Lu Yuying is serious.