Chapter 417

Zhuang Jianye felt a pause in his heart, saying that the static test of the aircraft would not fail, and that the overall design was completely negated, which would be troublesome.

It's very sad to say that apart from the composite materials, Tengfei aviation manufacturing corporation is weak in other aspects. If I knew that, I would have left some aviation materials imported from Europe. Now it's OK. All of them are advanced to the Logistics Department of the army.

That's not a good idea.

Zhuang Jianye immediately worried, frowning, just ready to ask the specific situation, on the other side of the phone an old voice anxiously said: "how to speak not to the point, give me the phone."

After a loud noise, Ding laixiang's serious and loud voice rang from the receiver in Zhuang Jianye's hand: "Xiaozhuang, the phone doesn't make it clear. I suggest you come to the grain market as soon as possible. En ~ ~ in this way, we will have a technical discussion soon. Hang up first."

As soon as Zhuang Jianye was ready to speak, Ding laixiang hung up the phone. Zhuang Jianye almost didn't have a mouthful of old blood. Lin Guanghua didn't talk about the point, but you Professor Ding talked about the point?

However, no matter whether it is important or not, the most important thing is to improve yun5, so we have to go to the grain market this time.

In fact, Zhuang Jianye should have been there long ago. Unexpectedly, before departure, Hong Xiaosong, the leader of the health department, and the head of the Logistics Department of the army suddenly announced that they would come to investigate the new products of Tengfei medical equipment company.

So Zhuang Jianye left the static test of the plane to Lin Guanghua, and he stayed in the headquarters to receive the two leaders.

Now that the leaders are satisfied, the newly developed medical equipment is recognized by the Logistics Department of the army, and an order is about to fall into the bag. Zhuang Jianye doesn't have much urgent business on hand, so he entrusts the company to Shen Jianwei and Huang Feng. After going home to pack up his things for two days, he sets foot on the grain train in Ning Xiaohui's reluctant eyes.

After that, he turned to the car and finally arrived at the aircraft test center. As soon as he got off the bus, Ding laixiang and other senior professors from the evaluation expert group gathered around.

"Xiaozhuang, your factory makes me look at you with new eyes again!" Ding laixiang is a rare compliment.

"Well, I didn't expect your new structure to have such performance." Professor Sun nodded in agreement.

"I have to say that my previous thought is guaranteed. Mr. Zhuang, your plane is really excellent." Researcher Qian stroked his glasses and said it sincerely.

Zhuang Jianye was a little dizzy. He said how could these people be so kind? You know, when the expert review group was just set up, the old people were so picky about themselves. Now how can they turn so fast.

However, the doubts in his heart are all doubts, but there is one thing that makes Zhuang Jianye completely put down his mind, because it at least shows that the improved Yun 5 has passed the static test, otherwise the old ones would never be like this.

"You are Mr. Zhuang of Tengfei head office." Zhuang Jianye was thinking quickly in his head. A tall middle-aged officer in an air force uniform held out his hand to him with a smile. Zhuang Jianye quickly reached out to hold the hand and politely said, "just call me Zhuang Jianye, eh The chief is... "

"Oh, I'm Wu Changcheng, deputy director of the flight test center. I'm also a new member of the new aircraft expert review team designated by the higher authorities." Wu Changcheng introduced himself politely.

Zhuang Jianye had some confused thoughts, which made him even more confused. If I remember correctly, there should be nothing wrong with the military in the improved Yun 5. What happened to a member of the evaluation expert group with military background? It's assigned by the superior. What's the situation?

Looking at Zhuang Jianye's stupefied appearance, Lin Guanghua, who finally found a chance to speak, rushed over and whispered a few words to Zhuang Jianye. Zhuang Jianye's dull face immediately became very wonderful. Then he looked at Wu Changcheng and asked in disbelief: "the air force is optimistic about our improved operation 5?"

"Yes." Wu Changcheng nodded with a smile: "our research shows that your model is the equipment urgently needed by our army." Then he led Zhuang Jianye to the reception room, and then he told me about the situation during this period.

It turned out that a few days ago, the improved yun-5 was hoisted to the static test bench, and it was not long before the 30% service load test started, which lasted 120 hours.

Wu Changcheng and Ding laixiang thought that if the ring bearing structure of the improved yun5 was removed, the overall index would be very difficult to see. As a result, after the data came out, Wu Changcheng and Ding laixiang were surprised. The maximum deformation limit was less than 3% of the total deflection, and the residual permanent deformation reached an amazing 0.024%.

It should be known that 30% of the service load test of general aircraft, the maximum deformation limit is less than 5% of the total deflection, and the residual permanent deformation is not more than 0.2% even if it is qualified.

However, the improved yun5 has achieved 3% and 0.024% of these two indicators, indicating that its overall structure is not only stable but also safe,

this is not qualified, it is simply excellent.

After 45% and 60% of the use of load test is the same, the data is as good as ever.

In this way, several old professors are not calm. There is no ring-shaped load-bearing beam, so the use of riveting technology is reduced. The improved yun-5 with integrated molding is even better than the aircraft with traditional materials and technology.That is to say, the overall structure of the improved yun5 is not only reasonable, but also lighter.

When the aircraft is light, it will bring more benefits. The ultimate index is that the loading capacity will be greatly improved, the practicability of the aircraft will be greatly expanded, and the designer's play space will be greater under the condition of constant rated power.

As a result, several old professors who originally held conservative opinions on the improved Yun 5 directly put the previous suggestions behind them and began to discuss the performance advantages of the improved Yun 5 with Lin Guanghua.

If other people, with Lin Guanghua's jumping personality, at least they have to play a classic trick of pretending to be 13. The problem is that apart from Wu Changcheng, the rest of the old experts are either their tutors or the teachers who once taught you. If they want to pretend to be 13, it is estimated that a few old professors can slap him in the face.

As a result, I had no impulse to record data on the static test bench during the day. At night, I shared with several old experts some experience on the development of the improved yun-5.

Until one day, the head of the air force suddenly came to the test center for investigation. After listening to the introduction and opinions of Wu Changcheng and Ding laixiang on the improved yun-5, he said that this model could be included in the air force's equipment research and development sequence, and put forward preliminary suggestions for improvement.

At that time, Lin Guanghua was in a daze. He did not expect that the improved yun-5 could be included in the air force equipment development sequence.

Not to mention Lin Guanghua, even now Zhuang Jianye is confused. What's the situation? Is this going to build a plane for the air force?