Quiescence.

Even, the whole air froze.

This is the most serious problem facing the big aircraft project!

The four JT-3D engines imported from the United States were originally only used as backups, and the large aircraft was initially prepared to use the domestically produced turbofan eight.

As a result, the turbofan 8 was successful, but it was not suitable for the use of large aircraft, and the leaders of the large aircraft factory discussed and decided, and finally installed four spare engines on the second prototype for test flights, so that the Yun 10 could fly.

This is a problem that everyone is unwilling to face, whether it is the personnel of the 708 Institute responsible for the design of large aircraft, or the relevant personnel of the 5703 factory responsible for the production of large aircraft, they are not engaged in engines!

Domestic support is not good, and they have no choice.

"Director Liu, if China can provide practical engines, our planes can still fly!" Ma Fengshan has never had contact with Liu Yijiu, but Liu Yijiu has sent people to contact him a lot, this is the first unit in China that is willing to continue to inject funds into large aircraft, and it is also a very rich kind of unit, no one wants to offend.

What's more, Liu Yijiu was not dissatisfied with this project, but raised the most difficult questions.

If the problem of engines is not solved, even if the entire large aircraft continues, once the supply channels are cut off abroad, these planes will still not be able to fly. At that time, if foreign countries want to threaten it, it will be difficult to solve the problem at all.

"Director Liu, I don't think there's anything to worry about at this point. Even without the Americans, we can introduce British bass engines. Especially now that the production technology of bass engines has been introduced in China...... "Yan Ruyun is not clear about the progress of Liu Yijiu's victory over the turbofan eight team."

Bass engine technology. In Qin Fei, how to be specific, Qin Fei's people are also fragmented.

"Bass engines? According to what I know, localization is not possible at all, and until now, no successful samples have been seen......" Liu Yijiu sneered.

"Isn't there still our turbofan ten?" Wang Shunyi felt more and more that Liu Yijiu was abnormal.

The whole person is like eating gunpowder, if he continues like this. There is no need to talk about it at all. How good it is for the Ninth Academy to honestly hide in the mountains and study their own techniques. Why come out and do such thankless things that waste a lot of money?

Looking at Li Rui beside Liu Yijiu, Li Rui lowered his head, which made Wang Shunyi even more puzzled.

Liu Yijiu is not a person who can affect things at work because of personal matters.

"Yes. Director Liu. I heard Director Zheng Hao say that the development of the turbofan ten team of the 611 Institute has made a breakthrough, the first engine sample has been trial-produced, and the test run is underway, if the test work of the turbofan ten is over, there is no problem, I think, the engine will not become an obstacle for our big aircraft to go to the sky! Even. At that time, we will not worry about the safety of the big plane because of heart problems......" Hearing Wang Shunyi's words, Yan Ruyun hurriedly echoed and said.

The Ninth Academy took over the research work of the Turbofan 8 a few years ago. And further study of turbofan ten on the basis of turbofan eight, and even samples came out, or, Liu Yijiu was angry because they used a spare engine instead of turbofan eight?

"Director Liu, in our research and development process, there are indeed many problems, but these problems are not impossible to solve, and we have also solved all the problems, this point, please rest assured. We are all engaged in technology, and there will never be any negligence in the safety performance of the aircraft...... "Ma Fengshan also knows that because of the domestic industrial base, many things have adopted local methods.

It's normal not to be sure about safety performance.

However, we have only just started the test flight! The plane is nothing else, it must be tested for a long time, and it has to be tested for a long time and in large quantities before it can enter the market.

"As for the 58 imported finished parts you are referring to, if these can keep up with the domestic materials and production processes, everything will not be a problem. When I was in contact with the personnel of the Ninth Academy in the past, I also knew that if the Ninth Academy could provide avionics systems, radars, and even large presses, blasting and welding technology, etc., these 58 imported finished parts could no longer be imported from abroad, and absolutely 100% domestic ......" Ma Fengshan skillfully pushed the matter onto the Ninth Academy.

The Ninth Academy wants to intervene in the large aircraft plan, not only because the Ninth Academy can provide a large amount of funds, but also because the Ninth Academy can provide strong technical support.

Technical support, which is what large aircraft teams need most.

They designed the aircraft, not to solve the problems that arose in the production process of various components.

After all, they are not experts in mechanical engineering, production processes, and even materials.

When Liu Yijiu heard the words of Ma Fengshan, the chief designer whom he respected, he couldn't help but smile bitterly in his heart, and immediately thought about it, as if none of these were their fault.

The country's poor industrial base and the fact that he feels that everything he does are constrained, all this does not justify his irritability.

Only by working hard to solve these problems, solving them step by step, so that the country can gradually develop and become strong in the process of solving these problems, is what he should do. He was irritable, purely because he was a little anxious.

Engaging in technology is definitely not as simple as inviting guests to dinner.

Rice, you have to eat bite by bite, Ruth has to go step by step.

Even the United States and the Soviet Union did not develop and become powerful in just one or two decades. If it weren't for the fact that the U.S. financial crisis had almost emptied the entire U.S. industrial base, and Hitler's attack on the entire Soviet Union with absolute force, which caused their industry to grow rapidly during the war, the Soviet Union would not have had the strength to compete with U.S. imperialism.

And the US imperialism has been developing for even longer. Although it is not as deep as the history of an old industrial power like the United Kingdom, the industry of the Americans has been developed for more than 200 years to achieve today's achievements!

The republic has been able to spend less than half of its time on industrial development in just thirty years, and with the current foundation, it is not bad, and there is no need to complain or be irritable.

"Ma Lao, for this point, I believe it can be done, what if these problems can't be solved in a short time?" Although Liu Yijiu's attitude has improved a lot, the problem is still acute.

"If there is no way to solve these problems, we can still only take the current approach and continue to import key components in the process of continuous development. And get more data and experience from more test flight work, and find more problems...... "The current situation has become a separate confrontation between Liu Yijiu and Ma Fengshan, the chief designer of Yunten.

Yan Ruyun was speechless, they just wanted to get the funds to assemble the remaining three prototypes, as for this?

Just 30 million is enough.

Immediately, he was very dissatisfied and said to Liu Yijiu, a young man who was here to find fault at first glance: "Director Liu, most of the parts of the remaining three prototypes have already been produced, and you only need to assemble these parts into a finished aircraft." ”

"Director Yan, things aren't that simple, are they?" Wang Shunyi understood the meaning of Liu Yijiu's words.

At the beginning, in order to win their consent, Liu Yijiu did not say many defects of the large aircraft. If the current development of the Shanghai Municipal Government and the large aircraft continues, it is very likely that the entire large aircraft will not even be able to promote the entire domestic industrial system as they expected.

Now, Liu Yijiu is forcing the other party to hand over the management power to the Ninth Academy, so that the large aircraft can develop according to the ideas of the Ninth Academy and promote the country's industrial system.

After all, they didn't plan to be able to guarantee that they wouldn't lose money from the beginning, and they planned to invest at least two billion dollars in large planes in the next ten years!

No one wants the investment of two billion to go down the drain!

Wang Shunyi's demeanor was very serious, and when everyone looked at him, he continued: "According to the technical information we obtained, your first prototype for static pressure testing, since October 1976, a total of more than 1,650 faults have been investigated, and there are riveting quality problems, such as small rivets instead of large rivets, unriveted nails, leaking rivets, etc.; Forced assembly of important stressed parts; incongruity between parts, etc...... In particular, there were 127 faults on the No. 10 rib, which was an important stress part of the wings on both sides......"

And this is only the first plane that has not taken to the skies.

Wang Shunyi said this, did not end, but continued: "In the first quarter of 1978, the large aircraft factory conducted a quality inspection for the second prototype used for test flights, and there were 5,312 riveted parts quality problems alone, including 127 large quality problems, and a total of 825 scrapped and updated parts. There's nothing wrong with this data, right? Moreover, you did not report the data to the Ministry of Aviation Industry in its entirety......"

These data are so detailed that all of you are the main management units of the entire large aircraft project.

Moreover, the Shanghai municipal government believes that this is a project they are in charge of, and even if it is not reported to the Ministry of Aviation Industry, as long as the problem is solved and the plane finally flies, there will be no problem.

But I didn't expect that the people of the Ninth Academy didn't know where to get these data!

Moreover, now that they take out the data, they simply have no way to object to it.

There was a problem with the first test, the second did not improve, but more appeared, if it were not for a full range of repeated investigations, it would have been impossible to find out, and maybe even something would have happened as soon as the plane flew! (To be continued.) )