Just when the radio broadcast that everyone went to the big playground to receive wages, Lei Yuanhang, as the deputy chief engineer of Yun Shi, just read the information in his hand and couldn't help but feel sad, Yun 11 stopped on the tarmac for almost six years, although the body was not found to be damaged after this inspection, but many electronic equipment on the aircraft have been aged, the most important thing is that the four engines have not been started for many years, and the four engines need to be removed and returned to the factory for overhaul, if the repair is not good, it needs to be replaced with a new engine!

Lei Yuanhang, who took this test report, thought about the plane that could fly normally a few years ago, because of the sentence above 'can't get 30 million fuel costs' and stopped here, although they tried their best to protect the plane, but after so many years, a good plane was about to be put into scrap metal, Lei Yuanhang's heart was very clear that it would cost a lot of money to repair this Yun Shi!

The next day, Lei Yuanhang came to Mr. Xu's office with this test report, and Lei Yuanhang, who entered the office, said when he entered the door: "Mr. Xu, the test report of the Yunshi verification machine has come out!" ”

Xu Hongwen saw Lei Yuanhang coming, stood up with a smile and said, "Uncle Lei, why are you so polite, if you have something to send over, you can get it!" ”

"Today's report is very important, I have to report back to you!"

"What do you mean by the test report?"

"Mr. Xu, you also know that the Yun-10 we tested before has not been moved for nearly six years, and we dare not fly a plane that has been parked for six years, so our research institute has done a major physical examination of the plane according to the platoon of technicians!"

"Is this major physical examination completed, and how is the situation?"

"The situation is worse, although the fuselage is not damaged, but the avionics equipment on the plane is seriously aged, and the engine of the aircraft is damaged because of long-term non-operation, these damaged parts we have to repair or replace according to the situation, now the most headache for me is the aircraft engine, because we do not have a JT-3D engine overhaul plant in China, although the JT-3D engine has been imitated in China to develop into a turbofan 8, but from a few years ago after the transport of ten horses after the supporting turbofan 8 team is almost scattered!"

Xu Hongwen, who heard some of them, also knew that the situation was serious, the engine is the heart of an airplane, even if you get the other complete sets on the plane in order, there is no suitable engine to make the plane fly, if the existing JT-3D engine is sent abroad for overhaul, it is not good to buy a few new engines back!

"Uncle Lei, how did our own turbofan 8 engine develop before!"

"Alas, as far as I know, our own turbofan 8 engine has been basically finalized, and has the conditions for small batch production, but after ten off the horse, some people feel that there is no need to engage in turbofan 8, and I don't know what the situation is over there now!"

"Then can we build an engine research institute by ourselves, and take over the data and main technical personnel of the turbofan 8 over there, they don't do it, let's build the engine ourselves!"

Lei Yuanhang didn't expect the young man sitting in front of him to be so ambitious, but he also felt sorry that the turbofan 8 was given up, and the turbofan 8 was a key supporting project with Yun 11 back then, think about how it is a pity that the engine that has reached the requirements of small batch production has been given up like this, you must know how many people's efforts have been spent on that engine!

Although Lei Yuanhang also knows that the turbofan 8 engine has a big gap with the world's advanced level, he also envies the technology of Europe and the United States, but as a technology, Lei Yuanhang is more pragmatic, no matter how advanced others are, it is someone else's, if they don't do it because they feel backward, China will always lag behind, in Lei Yuanhang's view, it doesn't matter if there is a gap, as long as you have the talent to keep catching up or surpassing!

After hearing Mr. Xu's words, Lei Yuanhang couldn't help but be a little excited, to engage in such a big project as they need this kind of strong support, for the research and development of the engine, he also knew that it would be a lot of investment, fortunately, there was a foundation before, if the previous technical personnel and original materials were brought over, it would not be difficult to engage in turbofan 8!

"Mr. Xu, to be honest, I am in favor of our company taking over the turbofan 8, but it will be a big expense to build an engine!"

"Hehe, Uncle Lei, don't worry, I wanted to build a turbofan 8 engine before, but I have been busy with this side of the matter before I have time to unfold, even if Uncle Lei mentioned the problem of the engine today, we will completely solve Yun Shi's heart disease!"

"That's right, Mr. Xu's use of heart disease to describe the engine of the aircraft is the most appropriate, even if Mr. Xu has the heart to build a turbofan 8, then I will go over there to contact engineers and technicians, but the government needs Mr. Xu to run in person!"

Thinking that the supporting engine of Yun Ten has not yet landed, Xu Hongwen's heart is also anxious, he knows that this kind of thing will not come in a hurry for a while, even if he wants to continue to engage in turbofan 8, he must coordinate and coordinate in many aspects, after this matter is settled, Xu Hongwen is still worried about Yun Shi and other big problems, he asked:

"Uncle Lei, in addition to the problems detected this time, Yun Shi has encountered those problems in the initial trial production!"

This question made Lei Yuanhang ponder, thinking that when the horse was first launched on the 10th project, the domestic industrial base was very lacking, whether it was material technology or assembly technology, these processes could not be introduced at all, and they all had to be explored slowly by themselves; Moreover, Yun 10 is designed according to European and American specifications, and there are many overall components that need to be applied in the design, and there are many applications of large calcines, aircraft enlarged skins and large profiles!

However, there is a lack of corresponding industrial base and technical support in China, for example, the large keel on the aircraft needs to be made as a whole by a 50,000-ton giant hydraulic press, but there is no such giant hydraulic press in China.

Because of the lack of industrial strength, the Shanghai Flying Factory and the Research Institute had to try their best to deal with these problems, although they had no way to solve one problem after another, but this solution process also invisibly increased the weight of the aircraft, so the design of the Yun Ten had to shorten the overall length of the aircraft, because of the gap in industrial technology, the idea of these technicians had to make a compromise!

And the reduction in the length of the plane not only greatly increased their workload, but also reduced the volume of Yun 10 correspondingly, but this was also a forced solution! (To be continued.) )