Rebirth of Military Workers

Chapter 184

“As a brother unit that also studies large airplanes, your words are too hurtful.” Sun Daoqian was extremely dissatisfied with Zheng Yucheng’s words.

Even if you know, don’t say it.

“We can rent the factory building from you.” Xie Kai proposed a solution. “The factory and other facilities used are, after all, your investment and construction.”

Qin Fei wanted funding, and a small amount of funding would make cooperation between the two parties more enjoyable, and there was no need to be too stingy.

Specially build a production workshop, no land cost is needed in 404, and the transportation cost of various materials is higher.

There are no supporting facilities around.

A Qinfei factory can provide all the parts of the aircraft.

Yunshi is different, and does not have its own dedicated production plant. The entire aircraft project consists of more than 30 research institutes in the national aviation system, more than 20 units in aero engine related fields, and more than 200 aviation systems integration.

Yunshi is far more complicated than Yunba and has higher technical content.

“We need to discuss this matter and report it to the superior for approval.” Sun Daoqian said in an official tone.

Zheng Yucheng is extremely dissatisfied with his official speech, “This matter does not require the approval of the superior, and you can decide things. If you want to cooperate, you can cooperate. Give me a good word.”

This matter does not require superior approval.

The military’s funding is in short supply, and the limited funding is focused on the most core technological projects, delegating a lot of autonomy to the following units.

Many units are exploring ways to make money.

For a while, Sun Daoqian was a little embarrassed and didn’t know how to answer.

“Director Zheng, this kind of cooperation is a major event. After all, we are a military-industrial unit…” Su Xingguo hurriedly released the siege.

“It sounds like we are not a military-industrial unit. We are all subordinate units of the military. I don’t believe that higher-level leaders will prevent the cooperation of brother units!” Zheng Yucheng is aggressive.

Yunshi must find a place to stay.

McDonnell Douglas is about to enter the market, and Yunshi’s production line must find a place to make room for McDonnell Douglas.

What’s more, there are many key experiments in Yunshi that have not been done.

Qin Fei has complete supporting facilities and is able to provide the conditions for the ten key experiments of transportation.

This is the result of these time investigations by Ma Fengshan and Cheng from time to time.

“Old Zheng, let’s discuss this matter again.” Sun Daogan was as worried as Zheng Yucheng. Yunshi borrowed their factory buildings, R&D team, etc., and don’t occupy the magpie’s nest at that time, which will affect the development of Yunba.

“…” Zheng Yucheng was about to say something, but was stopped by Xie Kai.

“Wait for them to think about it first.” Xie Kai said.

Zheng Yucheng, Ma Fengshan and others didn’t understand his thoughts.

After returning to Qin Fei’s guest house, the group sat in the conference room of the guest house to discuss cooperation with Qin Fei.

“Mr. Ma, does Qin Fei know the specific work of our Yun-10 team after entering their side?” Xie Kai knew that everyone was puzzled, and did not directly explain it.

They are worried that cooperation will affect Yun Ten, and Qin Fei’s people are worried that cooperation will affect Yun Ba.

The output of Yunba has always been an unsolvable problem.

“We only said that it was design modification work. We did not say that our further work is to completely replace materials, redesign the entire aircraft, and add a large number of unfinished experiments…” In this regard, Ma Fengshan has something to say. awkward.

Only the project team knows the issue of Yun Ten with a few people.

The frequent takeoffs and landings of Yunshi in the past few days have caused them to worry more and more.

The main structural parts of foreign civil aviation aircraft are made of special aluminum alloy 7075 as the main integral forging and forming. There is no aluminum alloy with comparable performance in China, so it can only be topped with the LC4 of military aircraft.

This kind of aluminum alloy is easy to crack, and the crack grows quickly, the corrosion resistance is poor, and it is not fatigue resistant.

In the process of production trial production and flight test, this kind of problem is frequently exposed.

Not to mention the problems such as splicing the whole large skin with small skins, and welding the whole forgings with small forgings.(Read more @ wuxiax.com)

For the Yun-10 flying in the sky, the most critical overall structural fatigue strength test was not done.

Although flying around the country at present, the whole team’s heart is getting more and more nervous as the flight time accumulates rapidly.

Yun 10, this large aircraft project that should have been discontinued, since no fatigue life test was done, it is conservatively estimated that the flight life is only 200 hours under the condition of ensuring safety!

Yes, only two hundred hours.

Before 404 took over, it had already flown for 177 hours. After taking over several large-range flights, the flight time reached 201.5 hours after the flight last night.

Continue to fly, no one will dare to fly again without perfect preparations.

This is what the Yunshi design team knows, and the core management of 404 also knows it.

Qin Fei didn’t know. They thought that after the Yunshi team came in, they would start small batch production.

“They tried many times and asked about our production quantity.” Cheng said with a wry smile from time to time.

“How much can we produce an airplane with a service life of two hundred hours?” Zheng Yucheng’s mouth twitched.

Today, Yunshi’s flight time is more than two hundred hours, and his heart hangs.

It wasn’t until the plane landed that I let go of my hanging heart.

If there is a choice, he is really unwilling to take a special plane like Ten.

He even hated Ma Fengshan a bit, why he was so cruel, and told him that the service life of Yun Xing was conservatively estimated to only fly for two hundred hours.

Both Ma Fengshan and Cheng looked embarrassed from time to time, and wanted to say that 200 hours was just a conservative estimate, and they didn’t say anything in the end.

“In the past few days, a comprehensive inspection has been conducted on Yunshi, and the replacement parts will be replaced. The crew members and the technical support team must ensure safety.” Xie Kai did not say whether it is to ensure the safety of the aircraft or the safety of the personnel.

“As long as there is any hidden danger, we won’t let it take off.” Cheng nodded and said from time to time.

They know the catastrophic consequences of a plane crash in the sky.

How can the clanking poor military afford to use an airplane with a lifespan of two hundred hours?

The military will not want an early warning aircraft.

“We know this. Foreign countries do not restrict domestic procurement of civil 7075 aviation aluminum. The next batch of manufacturing will all use imported 7075 aviation aluminum.” Xie Kai said to Ma Fengshan and others. “The money that should be paid must not be less!”

“What about the overall structure?” Cheng asked from time to time.

Many key equipments are not available in China.

For example, a large press of more than 50,000 tons.

“The largest domestic die forging machine is the 30,000-ton die forging machine put into production in Southwest Aluminum Plant in 1973. Our main structural parts need at least 50,000 tons of die forging machines. If we want to continue to develop, we must have a larger tonnage. The die forging machine is at least 65,000 tons…” Ma Fengshan looked at Zheng Yucheng and said, “If the funds are sufficient, maybe we can purchase a large die forging machine of 65,000 tons from the Soviet Union.”

“Since this thing is so critical, let’s buy a set.” Zheng Yucheng said casually.

Xie Kai jumped up immediately, “Don’t even think about it!”

The old guy really dare to say.

The price of a 65,000-ton die forging machine is hundreds of millions of dollars!

The entire 404 base has sold all the properties, and I can’t buy one.

“Isn’t it just a machine? What are you doing with such a big reaction?” Zheng Yucheng couldn’t understand why Xie Kai’s reaction was so intense.

Ma Fengshan didn’t report any hope, but he has been paying attention to Xie Kai’s reaction.

“In order to provide Airbus with qualified key structural parts, the French aircraft parts manufacturer AD ordered a 65,000-ton multi-directional die forging hydraulic press from the Soviet New Klamator Heavy Machinery Plant in 1976. I don’t know what the additional conditions are. , But the price is more than 200 million US dollars…” Xie Kai knew that Zheng Yucheng did not know the price of this item.

“Huh? A machine is worth 200 million U.S. dollars? Or 76 years?” Zheng Yucheng stood up in fright.

In his cognition, a machine is worth millions of dollars.

Xie Kai doesn’t despise Zheng Yucheng.

The 404 base had no aerospace-related projects before, and even if there were, Zheng Yucheng did not need to solve it. I don’t know that the most critical equipment in the aerospace industry is the large press, which is justified.

“What do you think?” Xie Kai looked at Zheng Yucheng, “Even if we sell our 404, we can’t afford it. In the whole world, it is estimated that there will be no more than 40 units in total…”

Zheng Yucheng was a little embarrassed.

Even if the Soviet Union was willing to sell, they really couldn’t afford it.

“In fact, our Yun-10 aircraft can meet the requirements with a 45,000-ton press,” Cheng said from time to time.

They hope that 404 can come back with a set of such a large press.

“Don’t think about it, we don’t have the funds for the time being to build these equipment. Even 45,000 tons, it costs hundreds of millions of dollars, and it depends on whether people are willing to sell it.” Xie Kai shook his head to dispel their thoughts.

In the case of sufficient funds, you can consider introducing a large press.

Don’t think about it now.

Xie Kai missed his time very much. China has three die forging machines with a capacity of over 80,000 tons and two hydraulic presses with 40,000 tons of free forging in the world, one of which belongs to a private company…

Huaqing University even has a full set of drawings for the 160,000-ton die forging machine, which can be started as long as necessary.

“Isn’t our relationship with Europe and the United States very good now? The relationship with the Soviet Union has also been greatly improved. For these things, find relevant departments to contact the countries that have these forging presses to see if they are willing to help us make them!” There is only a 200-hour safe service life. Large-scale structural parts must be solved.

It can’t be provided domestically, so it can only use the relationship with foreign countries to find ways to get foreign countries to help in manufacturing.

“When we are rich, we will also find a way to build a station.” Zheng Yucheng comforted Ma Fengshan and the others.

Now he can’t afford it and is short of money.

If you have money in the future, if you don’t sell it abroad, you will find someone to design it yourself.

Zheng Yucheng remembered for the first time that there is such a thing in this world.

“First carry out the modification design. This work cannot be stopped. If Qin Fei does not cooperate, we will find Chengfei. Although they are not producing large aircraft, they are better than us rebuilding.” Xie Kai gritted his teeth.

He didn’t believe it anymore. Without Zhang Butcher, they would have to eat piggy.