readx;??? Remember in a second

The bickering between the two passed by, and Guan Fei heard it clearly on the rostrum. Pen? Interesting? Pavilion wWw. ｂiquge。 ｉｎfo

Nor is he bent on correcting a technician's opinion, as the saying goes, facts speak louder than words. To win the respect of the other party, you must show the ability to convince the other party, and the ability is not by blowing, but by doing.

He picked up the microphone, briefly thanked several units for their enthusiastic assistance, and then said: "All of you here are experts in the military industry, and we do not have a talent reserve in this area, so this time we have dispatched a group of capable technical personnel to assist, they were all engaged in the research of civilian technology in the past, so please also ask the experts to bother more." In addition, we have recruited a group of newly recruited mechanical design, flight power engineering, thermal energy and power, materials engineering, as well as materials physics, applied chemistry, measurement and control major recent graduates, although they have received rigorous training, but also have a certain laboratory work experience, but in the military research is still a novice, I hope that all the teachers here should also take more care to help them grow quickly, here, on behalf of the base thank you in advance! ”

After speaking, he stood up and stood upright, and saluted a standard military salute!

Some people hurriedly stood up to salute, some said they should be, and some habitually began to applaud, and the venue suddenly became chaotic.

The leaders of several units on the rostrum responded quickly, turned on the microphone and said politely, saying that this was their obligation and that they would do their best to help the collaborative research personnel sent by the base area improve, but if they had any doubts, they would know everything and say everything.

When the venue returned to quiet, Guan Fei continued: "Then let me first briefly introduce the situation of this research mission: this research is based on a set of reverse mapping drawings of advanced training aircraft, and there are accurate measurement data on the drawings, including the external dimensions and performance parameters of the aircraft. According to this set of reverse surveying and mapping, under the premise of thorough digestion, we should redraw a design drawing that meets the requirements, and on this basis, take out a complete set of construction drawings, equipment drawings, and tooling drawings, manufacture a prototype, and finally finalize it after ground and air testing, modification and improvement. At the same time, it is necessary to use it as a platform and convert it into a light fighter/attack aircraft. The entire task is required to be completed in three to four years"

As soon as he said this, there was an uproar below.

Three to four years?

Just kidding, relying on the copycat of surveying and mapping, to be honest, it is more difficult than researching it yourself. After all, all the ideas are coherent and clear, and most of the derivation process has additional materials and formulas for reference.

But the surveying and mapping map is someone else's stuff through and through, and just understanding why the other party is designing and designing ideas is enough for everyone to drink a pot, and the progress can be fast.

This is the case with the MiG-21, the Soviets provided a full set of drawings, production lines, and sent experts to teach them by hand. As a result, at first, everyone only learned how to use this production line to manufacture step by step, and the principle was completely unknown. After thoroughly understanding this set of technology, China's aviation people have spent twenty or thirty years, and now although they have developed a number of improved models on the standard version, can it be said that they have completely mastered all aspects and can be independently researched without the original version?

Not necessarily!

Just like the domestic J-8 and J-9, they are two enlarged versions on the basis of J-7.

The result?

Because the J-8 was powered by a worm jet motive, it was the first to successfully test in the late sixties, but it has not yet reached a complete state and is still improving little by little. The J-9, which was dragged down by motives, was even more miserable, and only one ground verification aircraft had been completed so far, and it was canceled before even completing the test flight.

This is still based on the fact that everyone is most familiar with the J-7, which has done so badly, and now the base has come up with a survey and mapping map that I don't know what to call it, and it will take three to four years to complete its design drawings, construction drawings, prototypes, and even finalize it, how can this be done!

Not only the researchers, technicians, and workers sitting below, but also the heads of several units on the stage were also surprised.

They also thought that this research was time-limited and would take as long as it would take, and who knew if it would take three to four years to come up with a finalized product.

It's too hard

Guan Fei turned a blind eye to the expressions of everyone on and off the stage, and continued: "I know that everyone thinks it is a little difficult, but I think it is not very difficult."

It's not a surprise!

If you have the ability, you can use it for three or four years to get a J-8 or J-9 to try it, and you won't have back pain when you sit and talk!

The faces of the technicians at the meeting were a little stupid, although they did not object, but no one agreed with this, and they all kept silent with black faces.

Guan Fei smiled: "The reason why I dare to say this is because this is a mature design, not a semi-finished product that needs to be started from scratch. What we need to do is first according to this surveying and mapping, using the existing aerodynamic formula, combustion formula, inlet calculation formula, trim formula and other formulas to be used in aviation design, reverse the design parameters of each component, indicate the strength requirements of each part, and then find the material manual, deduce the materials they use, and draw a complete design drawing. Although this is a tedious and huge amount of work, it is not complicated, and even college students who have not graduated can do it, so I don't think everyone here will feel intimidated, right? ”

In the end, he stimulated everyone in a radical way.

I wanted to embarrass him, but he was the first army, and when he asked the head, a researcher rolled his eyes, stood up and said: "Commander Guan, according to the surveying and mapping, the performance indicators of the parts are deduced in reverse, and then the material manual is checked to select the appropriate materials, although it is very troublesome, but it can indeed be achieved." However, you have forgotten that in order to achieve the design performance of the aircraft, the weight of each component also needs to meet the requirements, and you only have one map, how do we measure it? ”

"Calculate! Although there are no construction drawings, we can calculate the weight of each part! Guan Fei didn't think about it, so he replied, "From the indicators of the aircraft, the empty weight of the aircraft can be known in reverse, and then the weight distribution of the empty weight and trim, as well as the performance requirements of each component, you can check the manual to determine what materials it uses to meet the requirements." As soon as the material is determined, the weight is also determined. I know it's a lot of work and a lot of calculations, but it's not difficult to do with a lot of people. ”

Listening to what he said, the technicians present looked at each other, and it was obvious that this commander was knowledgeable, not a layman.

"But there are some materials that others have, but we don't have, so this derivation may not be correct, or the derivation may not be realized, so what is the point of such a derivation?" Someone was not convinced, stood up and continued to retort.

"Of course I do. I didn't say that it must be 100% restored according to the sample! Guan Fei's tongue was full of Confucianism, without stage fright, standing on the rostrum and talking, "Our purpose is just to make the same aircraft according to this design, as for what materials are used in each component inside, as long as the performance is up to standard, we do not force it." You can use titanium alloys, you can also use special alloys, or composite materials, as long as its performance can meet the requirements, we do not make restrictions, there is no need to be absolutely consistent with the sample. ”

"In that case, performance is not guaranteed!"

Feeling that he had grasped the loophole in his words, several more technicians rushed to speak.

"You use directional solidification technology, of course, it is not as good as single crystal technology, this is why turbofan six can not be practical for a long time, the technology cannot be reached, and the material is not as good as others. It takes 1,000 hours to overhaul the burner, and we can't even guarantee 100 hours. Guan Fei did not avoid this question, but replied head-on, "However, the technology that is not available in China does not mean that we do not have it!" We also have this monocrystalline technology, some high-performance materials, we can also provide"

Rumble!

He couldn't talk anymore, because the audience was already in chaos, not only the audience, but also the audience, including Minister Luo and others, all of whom opened their mouths wide and looked dumbfounded.

Vice Minister Luo didn't care about the discipline of the venue, grabbed the microphone in front of him, turned on the switch, and asked, "Comrade Guan Fei, do you have monocrystalline manufacturing technology?" I didn't hear you talk about it last time. ”

The life of the turbofan is short, and the quality of the impeller is not up to standard.

General Motors, Hewlett-Packard, and Rolls-Royce, which have the strongest foreign technical force, use single crystal blade technology, and their life span has soared to thousands of hours. And there is no in China, it can only be replaced by poor directional solidification technology, and the result is that the short life has become the Achilles' heel, although the motive has been created, but it is dead and heavy, and the motive will be replaced after twenty or thirty hours of operation, and it has completely lost its practical value.

Guan Fei turned sideways and spread his hands towards him: "Although we have single crystal preparation technology, we don't have a 10,000-ton hydraulic press, and we can't make single crystal paddle castings, so I didn't say it last time." However, when this joint research is successfully completed, all kinds of technologies that should be mastered in China should also be able to be learned. And after practical use, you will be more impressed, right? ”

Minister Luo was speechless.

He can see that the technology in Guan Fei's hand is not just a single crystal, there must be a lot more. If the prediction is not bad, he will probably be prepared for the phased array radar components he took out for fishing, and other technologies that must be used in the manufacture of various weapons and equipment.

Judging from the fact that he has mastered these technologies and is looking for domestic research to jointly research, it should be a lack of manufacturing capacity and has to rely on China. On the other hand, it should be said that Guan Fei is still very patriotic, so he will take the initiative to invite China to study with them.

Thinking of this, he couldn't help but feel a burst of ecstasy in his heart.

Whether it was an airplane or a missile, to be honest, after the initial excitement, he did not have much hope for the results of the joint research.

Because of the weak domestic technical foundation and lack of experience, the shortcomings in the material discipline are even more fatal.

In his view, the greatest gain of this joint research is to understand the other side's research ideas, track the other side's technological progress, accumulate valuable experience for the future domestic military research institutes, and at the same time use this to understand the detailed performance of various most advanced US weapons and find out the weak points, so that we can carry out targeted training in the future.

However, judging from what Guan Fei said just now, the base area was completely prepared and extremely well prepared. Although I dare not assert that all technologies are sufficient reserves, I am afraid that some key technologies will not be less, otherwise how dare to say that they will be finalized and mass-produced in three to four years?

Good!

Great!

The more you dare to speak out, the more technology you have at hand, the greater the domestic gain!

If we can really learn and thoroughly understand all these technologies through this joint research, the role of promoting the domestic military industry will not only be upgraded to a higher level.

And as the original advocate of this plan, can he do it himself?

Minister Luo looked at Guan Fei, who was still calmly answering the technicians' questions one by one, his lips turned up slightly, and his eyes narrowed into a slit with a smile.

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