The Military-industrial Scientific Research System of the Academic Master Chapter 47

Chapter 47 Active flutter control, success!

After passing the first phase of verification, Yi Yuanhe immediately organized manpower and began preparing to replace the No. 01 demonstration aircraft with a new wing, and made corresponding adjustments and upgrades to the flight control for the new wing.

As for the director, Zhou Yonghang, he went directly back to the office and prepared to call Du Yishan to inform him of the exciting news.

But just when he picked up the receiver of the red phone on the table, a bald white man walked in from the door.

“Director Zhou, what happened? I saw that No. 01 had just performed a test flight, and then your people dragged it into the workshop instead of the hangar. Is there any malfunction?”

“Don't worry, Mr. Hogent, Unit 01 is in very good condition.”

Zhou Yonghang put down the phone and looked at Hogent, who was panting slightly because he went upstairs too fast and was a little nervous, and said with a smile. He also took out a teacup and gave the latter a glass of water.

Hodget was obviously relieved after hearing this answer, took the tea cup and sat on the sofa next to him:

“Since there is no problem, why should the aircraft return to the final assembly workshop? After all, this is the critical stage of airworthiness certification, and it is best not to make changes to the technical status.”

As a technical consultant for the 7-200A aircraft, Hogent does not have to bear any responsibility, but as a senior engineer of British Aerospace Corporation, he still has to consider his reputation in this industry.

So he does not want to see the risk of extraneous matters or delays in this project.

It is impossible to change the wings of an aircraft, a huge change that can be seen at a glance, and there is no need to hide it, so Zhou Yonghang, who sat back behind his desk, answered directly:

“After detailed technical demonstration, we decided to upgrade the No. 01 aircraft with a newly designed wing. Considering that the new wing can bring huge performance advantages, a slight delay in the airworthiness certification work is acceptable.”

“New wings?”

Hawking, who had just breathed a sigh of relief, stood up again and even spilled a little of the water in the cup:

“But I have told you before that the new wing will easily induce flutter when installed on the aircraft, and safety cannot be guaranteed at all!”

“I understand that you want to build a passenger aircraft with advanced performance, but before you want to run, you must at least learn to walk. Such recklessness may lead to the crash of the aircraft and the death of people!”

Hodget's Chinese is very good. He only uses English when discussing technical issues because he is worried about inaccurate expressions, so these two sentences really made him speak with a bit of momentum.

"Mr. Hogent, of course we are not reckless. In fact, the test flight just conducted was to verify a new technology of flutter control, so now we have the ability to replace the aircraft with new wings while ensuring safety. ”

When he said this sentence, Zhou Yonghang simply felt more relaxed than ever before.

To be fair, among the foreign experts invited by 603, Hawkint from the UK is considered the most responsible one, and he is not shy about imparting some of his experience to Chinese engineering personnel.

But no matter what, these foreign consultants usually look at China Aviation Industry with a more or less condescending attitude.

　Who makes you lag behind others?

But this time the situation is completely different.

What others are still on paper, we have already realized.

This experience…

Comfortable!

“New technology for chatter control…”

The expression on Hogent's face changed:

"But I am the technical consultant responsible for the aerodynamic analysis of this model. Why am I completely unaware of such a major improvement? How does this new technology work? How can I ensure that the subsequent airworthiness certification work is carried out safely?" "Mr. Hogent."

This series of questions made Zhou Yonghang's expression become serious:

“It is true that you are the technical consultant responsible for aerodynamic analysis, but according to the contract, the final decision on aircraft design rests with us. Your job is only to solve the technical problems raised by us. We are not obliged to inform you of all the details of the aircraft design.”

“As for the principles and implementation methods of new technologies, these are the technical secrets of our Chinese Aviation Industry. I don't think Mr. Hawking can just hand over the core technology of your British Aerospace Corporation to us, right?”

"this…"

Hokgent was speechless by Zhou Yonghang's two words. After opening his mouth, he couldn't say anything else.

After sending Hogent away, Zhou Yonghang, who was in his sixties, almost jumped back to his desk and picked up the phone receiver again.

“Lao Du, it's successful, we've succeeded here!”

After the call was connected, Zhou Yonghang was so excited that he didn't bother to introduce himself. In addition, his voice was slightly distorted. Du Yishan was even stunned for a moment before he realized who was on the other side of the phone.

“Is it… is it Lao Zhou? Did you verify the active vibration control successfully?”

Although I had great confidence in Chang Haonan before, when he really heard the news, the latter's voice was still a little trembling.

After all, this is the first time that Chinese people have been at the forefront of the world in aerospace engineering applications.

For these older generation aviation people who have learned and imitated step by step, how can they express their feelings clearly in words?

“Yes, we have just conducted a test on Unit 01, and the results are indeed the same as the data you got that day. It can increase the flutter critical speed by at least 10%!”

Zhou Yonghang on the other side of the phone was also excitedly wandering within the length of the phone line:

“We have already started to replace the wings and flight control of the aircraft, so that the performance of the new Y7-200A will definitely surpass that of the ATR42, and we can finally make a turnaround!”

“No, this is not only a turnaround for the Y7-200A model, but also a turnaround for our 603 Research Institute and even our China Aviation Industry!”

“Lao Du, you didn't see the look on his face just now when the Englishman Hawkint came to ask me what was going on with the new wings. I said it was a technical secret and I had no comment.”

“In the past, foreign experts blocked our technology. I never expected that I, Zhou, would have the opportunity to say this to foreigners!”

Zhou Yonghang talked endlessly into the phone for several minutes, and there were some tears in his eyes at the end.

Like Du Yishan, he is an old technician who has followed the new China's aviation industry from scratch, and he is really looking forward to a day when he can feel proud.

Although many parts of this Y-7-200A are made in foreign countries, even the prototype of this aircraft is copied.

But at least, now we finally have our own core technology on it.

A thousand miles begins with a single step.

(End of this chapter)

Chapter end

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