After the first stage of verification passed, Yi Yuanhe immediately organized manpower and began to prepare for the replacement of the new wing of the No. 01 verification aircraft, and adjusted and upgraded the flight controller accordingly 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 this exciting good news.

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

"Director Zhou, what's going on? I saw that the No. 01 had just made a test flight, and then your guys dragged it into the workshop instead of the hangar, what was wrong? ”

"Don't worry, Mr. Hawkint, the situation of Unit 01 is very good."

Zhou Yonghang put down the phone, looked at Hawkint, who was probably panting slightly because he had just gone upstairs too fast and was a little nervous, and said with a smile, and took out a teacup and took a glass of water for the latter.

Hawkett, who heard this answer, was obviously relieved, took the teacup and sat on the sofa next to him:

"If there are no problems, why should the plane go back to the final assembly shop? After all, it is now a critical stage of airworthiness determination, and it is better not to make changes to the technical state. ”

As a technical consultant for the Y-7-200A, Hawkint does not have much responsibility, but as a senior engineer at British Space, he still has to consider his reputation in this industry.

So he didn't want to see any unforeseen risks and delays in the project.

It is impossible to change the wing of the plane, and there is no need to hide it, so Zhou Yonghang, who sat back behind his desk, replied directly:

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

"New wings?"

Hawkint, who had just breathed a sigh of relief, stood up again, and even spilled a little water from his cup:

"But I've already told you before that the new wing on the plane will easily induce flutter, and safety will not be guaranteed at all!"

"I understand that you want to build a passenger plane with advanced performance, but before you want to run, you must at least learn how to walk, so it may lead to the destruction of the plane and the death of people!"

Hawkett's Chinese is very good, and he only uses English when discussing technical issues because he is worried about inaccurate expressions, so these two sentences really make him speak with some momentum.

"Mr. Hawkett, of course we are not brutal, in fact, the test flight we just conducted was to test a new technology for flutter control, so now we have the ability to replace the aircraft with new wings while ensuring safety."

When he said this, Zhou Yonghang simply felt unprecedentedly happy.

In all fairness, among the foreign experts invited by 603, this Hawkint from Britain is the most responsible one, and he does not hesitate to pass on some of his own experience to the Chinese engineers on weekdays.

But in any case, these foreign advisers usually look at Huaxia Aviation Industry with a more or less overlooking attitude.

Who made you fall behind others!

But this time the situation was completely different.

What others are still on paper, we have achieved.

This experience......

Comfortable!

"New Technology ...... for Flutter Control"

The expression on Hawkett's face changed:

"But I'm the technical consultant in charge of pneumatic analysis for this model, so why don't I know anything about such a major improvement? And how does this new technology work? How do I ensure that the subsequent airworthiness determination is carried out safely? ”

"Mr. Hawkint."

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

"It is true that you are the technical consultant in charge of aerodynamic analysis, but according to the contract, the final decision on the design of the aircraft rests with us, and your job is only to solve the technical problems raised by us on our own initiative, and we are not obliged to tell the full details of the aircraft design."

"As for the principle and implementation method of the new technology, this is the technical secret of our Huaxia Aviation Industry, I don't think you can hand over the core technology of your British Space Company to us, Mr. Hawkint, right?"

"This ......"

Hawkett was dumbfounded by Zhou Yonghang's two sentences, and after opening his mouth, he couldn't say anything after all.

……

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

"Lao Du, it's a success, our side has succeeded!"

After the phone was connected, Zhou Yonghang, who was excited, could not care about reporting to his home, and his voice was slightly deformed, Du Yishan was even stunned for a moment before realizing who was on the other side of the phone.

"Yes...... Is it Lao Zhou? Have you been successful in your validation of active flutter control? ”

Although he had been very confident 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 the Chinese people are at the forefront of the world in the application of aeronautical engineering.

For the older generation of aviation people who have come from learning and imitating step by step, how can the feelings in their hearts be clearly expressed in words?

"Yes, we just tested it on the 01st machine, and the results are indeed the same as the data you got that day, which can increase the flutter critical velocity by at least 10%!"

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

"We have already started to replace the wings and flight controllers of the aircraft, so that the performance of the new Y-7-200A will definitely surpass the ATR42, and we can finally make a comeback!"

"No, this is not only a turnaround battle for the Yun-7-200A model, but also a turnaround battle for our 603 Institute and even our Huaxia Aviation Industry!"

"Lao Du, didn't you see it, just now the Englishman Hawkint came to ask me what was going on with the new wing, and I said that this is a technical secret, and when I have nothing to say, his face."

"In the past, it was foreign experts who carried out a technical blockade on us, I really can't imagine that my Lao Zhou could have the opportunity to say this to foreigners!"

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

As an old technician who, like Du Yishan, has followed the new China's aviation industry from scratch all the way, he is really looking forward to the day when he can raise his eyebrows.

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

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

Great oaks from little acorns grow..