The next day, even if the first flight of the entire JF-17 is completed, the project has officially entered the test flight stage, if there are no problems in the entire test flight process, then the JF-17 finalized production stage will come faster, maybe there will be a small batch of production models in 90 years.

This is also the attraction of the whole JF-17 project, first of all, it seems that there are almost no technical problems now, after all, they are all familiar with the technology of Southwest Science and Industry, if this project has a big problem, it is really strange.

At this time, Yang Hui accompanied the current vice chairman of the army, and arrived at the scientific research team of the J-18 project, which can be regarded as a look at the current development progress by the way. No matter how good the JF-17 is, I am afraid it is not the most suitable dish for the Republic, and now the army is most concerned about the J-18, which Yang Hui knows and Southwest Science and Industry also knows.

This time, it was just two people together, and they came directly to the highest design and research center in the entire southwest science and industry secret, and walked into the scientific research building only to feel a quiet, without a trace of hustle, but the air was also mixed with the smell of nervousness.

"This is our scientific research center, the preliminary scientific research work of the 18th is carried out here, and the whole project is now entering the late stage of system proofing, and the preliminary design of pipelines and cables is being carried out, and it is expected that it will enter the next stage of scientific research in March or so after the New Year."

Walking inside with Vice Chairman Liu, Yang Hui also made various explanations along the way, and it was inevitable to introduce the development stage of the project first.

After Yang Hui explained the first paragraph, Vice Chairman Liu remembered something, and asked with some curiosity about the problems in the development of Southwest Science and Industry in the development of No. 18, mainly focusing on various technical issues after Northrop withdrew from the project, such as:

"I remember that you also reported that there were difficulties in the design of the middle fuselage structure of No. 18 before, so is it time to solve the problem?"

mentioned the structural problem of the fuselage again, for this, Yang Hui must still know something, and he can say two sentences without professional and technical personnel: "This has been solved now, after we withdrew from the project at Northrop." Hongdu was invited to participate in the project, and the structural design of the fuselage was given their credit, and the structural design problems were all solved in September, and the structural proofing design of the project was successfully completed. ”

And when it comes to structural proofing design. In fact, according to the number of pneumatic design, the pneumatic action point of the entire fuselage is analyzed, the structural design analysis of the main stressed parts is carried out according to the basis, and a reasonable structural form, material scheme, and weight estimation of the whole machine are selected.

This stage is a very important point. It almost determines the performance of the entire aircraft in the mechanical part of the excellent and reasonable design, if there is a problem in this regard, it is found in the later stage and then wants to improve it is almost equivalent to a redesign, and it is not up to the Southwest Science and Industry to act cautiously during this period.

"Is the problem really solved? You are responsible for what you say, and if there is a problem later, I will take you to the law. ”

Do you have to take responsibility for yourself? Yang Hui can't avoid this kind of thing no matter what, instead of pushing back, it's better to be just like this.

In the 18 structural proofing designs, Yang Hui also personally audited, these are the design plans that are used for mechanical analysis using special structural mechanics analysis software, and finally come up with design schemes. I dare not say that it is foolproof, but it is definitely more reliable than traditional analysis and calculation methods.

"It's natural, isn't this what I, the general manager, do! I believe in the ability of these technicians, and I also believe that these modern design methods, which cost a lot of money to build, can not only achieve a great increase in efficiency, but also greatly improve reliability with the help of computers. ”

From time to time, there are relevant personnel from this department to that department to conduct technical communication, and at the same time, you can see several people in the project team discussing technical solutions together.

This did not rush into the department to disturb, at the request of Vice Chairman Liu. Walking directly to the chief designer's office, it should be said that the person who knows the most about the technical progress here is definitely not Yang Hui, nor the technical personnel of various departments, but the chief designer system at this time.

"The chief designer of 18 and the chief designer of 17 are classmates of the same class. In the same year, they were assigned to work with us, both of them are very talented chief engineer-type talents, and the chief teacher recommended the two of them to preside over the current two projects respectively, and now both of them are doing very well. ”

At this time, Yang Hui also appropriately said two good words to the two chief divisions, that is, to seize the opportunity to say good things to the vice chairman of the army, and it would be quite rare to have such an opportunity in the future. In a few years, the highest honorary engineering academy of the republic will be established, and the southwest science and industry will still seize the opportunity to compete, and if it is not good, there will be a place for academicians, and when it meets the northeast head-on in the future, it will not be a dwarf.

However, the current vice chairman Liu still does not know that the country is going to establish the Chinese Academy of Engineering outside the Chinese Academy of Sciences, and he does not know that Yang Hui is playing this idea, after listening to Yang Hui's introduction, he is also very satisfied, especially the fact that this alumni of the same class is serving as the chief engineer of the two most important projects in the same unit at the same time.

"That's pretty good, so you have to make the most of it and give them room to play. I think the 17th is very good, but I think there should be some pressure on this one now, and the 18th is quite behind in terms of progress. ”

When he said this, Yang Hui was also a little embarrassed, how could he compare with No. 17 and No. 18, the time of the two aircraft projects was different, and the proportion of new technologies used was also different, if No. 18 could catch up with the progress of No. 17.

But there was a sudden rebuttal from behind, and Yang Hui knew who it was as soon as he heard it: "That's not what I said, No. 17 and No. 18 are completely incomparable, they took two years from the project to the current first flight, and this is because of the result of a large amount of previous technology accumulation." However, our progress on the 18th is not bad, it is still less than a year, and it has completed the progress that took a year to complete, and there are three months to enter the stage of coordination of the whole machine, and then you can see the rapid prototyping of the whole machine. ”

It is no one else who can say this, it must be the chief designer of the No. 18 project, and the only one who can be so young and vigorous is probably the deputy chief designer who is a few years younger than Yang Hui: Li Yun.

"Oh, who is this little comrade?"

Some people can't understand the freaks of this Southwest Science and Industry, how can they all be younger than the other, and one is more incomprehensible.

"My name is Li Yun, the deputy chief designer of No. 18, responsible for the digital fly-by-wire flight control and glass avionics cockpit design of the whole aircraft."

Looking at this young man up and down, left and right, I have to admire that it is really the back waves of the Yangtze River that push the front waves, and one wave is stronger than the other.

"Oh, it's good to be the deputy chief engineer at such a young age. This time, I came to see your No. 18 project team from the imperial capital, mainly to see what you have and what you need. ”

Vice Chairman Liu, who was smiling with a smile, came from the early days of the founding of the People's Republic of China, and at that time he was in charge of the research and development of the national defense industry with Nie Shuai, and inevitably learned the style of Lao Shuai's generation, doing logistics for front-line scientific research personnel. (To be continued.) )