Rebirth of Military Workers

Chapter 1021

“I don’t know the details. The cooperation between Boeing and us is just an intention. It is estimated that they will make a decision after evaluating our production line and production technology. Of course, if we want to cooperate, the premise is to help us get the airworthiness license. GM-56 engines from General Motors will also be exported to us to improve the Yun-10.” Bai Yanjun said.

It’s just an intention now.

Xie Kai is a little strange, why Zheng Yucheng, who always likes to blow up hair, doesn’t say anything today.

Hansen Miller was in the first class with several other Americans, accompanied by technicians who had been waiting for transportation from time to time. They needed to introduce the performance of the aircraft and some domestic production.

Behind this, communicate in a low voice, the other party can’t hear it at all.

“What’s the matter? Isn’t the domestic saying that the market is exchanged for technology? American aircraft can enter our domestic market, and we can also grab their market. The production cost is much lower than them. Even if the technical performance is poor At one point, there will not be too many. For the same type of aircraft, our Yun-10 is more competitive in the market.” Zheng Yucheng said triumphantly.

It seems that the old guy knew about this, but he didn’t tell Xie Kai.

Xie Kai is not angry, anyway, there is only one year left in the China-US honeymoon period. After the end, it is estimated that the technical cooperation between Boeing and China will be over.

Even the cooperation negotiations between Airbus and China will have to be terminated under pressure from the United States.

In any case, it is beneficial to China.

“In fact, they are afraid that our domestic technology is developing too fast, and cooperation will delay the modification of the Yun-10. They don’t know that the wide-body passenger aircraft of the Yun-10 will soon enter the prototype trial production link.” Bai Yanjun explained With.

In international negotiations, all parties are playing tricks.

If you don’t play with your heart, you will easily know what kind of family background there is in the country.

Xie Kai suddenly remembered that Boeing of the United States had never cooperated with China. Even after the merger of McDonnell Douglas, the cooperation between McDonnell Douglas and China was terminated. Since then, China’s major aircraft factories have no production. Large aircraft, waited until later ARJ-21 and C919 large aircraft appeared.

Now Boeing is cooperating with Hongqi Machinery Factory?

Wouldn’t it be the Americans who want to use this opportunity to understand China’s specific manufacturing capabilities?

One light and one dark.

“You don’t have to worry about what they should see or not. Although the domestic CNC machine tool technology has not made leapfrog breakthroughs in recent years, at least it has made good development. There are many CNC machine tools produced every year, and most of them are used In the field of aerospace. There are other breakthroughs in materials. The core things are all in our Qilian Mountains.” Zheng Yucheng said triumphantly.

Not afraid of American spying at all.

Anyway, Qin Fei is just an aircraft factory that produces transport aircraft.

Xie Kai also knows that if there is no breakthrough in China, the Americans will definitely embargo technology from China.

If China has made breakthroughs, they will export to China technologies that are outdated or even easily diverted to the direction of scientific research.

“It’s better to get the airworthiness license first. With this thing, it really won’t work. Let’s set up an air transportation company and buy our own aircraft!” Xie Kai said.

Yun-10 must continue to be studied.

“GM’s GM-56 engine is much better than Pratt & Whitney.”

“Our own engine is based on some technologies of GM-56. It’s just that we haven’t convinced Mr. Shen to help us organize a national research…” Xie Kai shook his head and said, “Since we want to cooperate, we can introduce some from them. station.”

Knowing that the cooperation will not continue, naturally, I am not afraid to spend tens of millions of dollars on GM engines.

Although the northeast side has secretly surveyed the drawings of the GM-56 engine, Xie Kai and the others have gotten their hands on the grounds that they have a share of the audience. There is no actual prototype in front of them for people to study slowly and analyze more Easy to understand.

There is not much experience in the design of turbofan engines in China.

Up to now, the turbofan-6 engine can barely be considered to be put into practical use, but the practical life span is hard to look at.

“Buy an American engine?” Zheng Yucheng didn’t know what Xie Kai wanted to do.(Read more @ wuxiax.com)

“Our turbofan-10, isn’t it going to be based on the GM-56 core machine technology? Only by standing on the shoulders of the Americans can we catch up with them faster. Not only should we build the American core machine, but also We must engage in the AL-31 core machine technology that the Soviets installed on the Su-27.” Xie Kai said.

Zheng Yucheng stopped talking.

He has already understood how important the core engine technology of the turbofan engine is.

With this, it is easy to solve whether it is a high-power gas turbine used in a power plant or a high-power gas turbine used in a ship.

Now this thing is bad in China, and no unit has proposed to do this before. On the one hand, it is because the technology is too difficult and the supporting facilities are not perfect. On the other hand, it is because of financial problems.

404 holds tens of billions of funds in its hands, and the financial problem is no longer a problem; and the supporting equipment, 45,000 tons of large presses have been successfully put into production, and 65,000 tons of large presses have started construction, which can withstand higher temperature nickel-based high temperatures. Alloys have also made breakthroughs, except that the cost is higher, and there are others, which are not a problem.

The problem is the design ability.

No one can do anything about this.

Can’t the domestic core machine technology be provided by the Americans?

Americans are not that stupid.

“In this way, wouldn’t our future Yun-10 only build a shell?” Zheng Yucheng was a little unhappy.

The avionics system is American, and the power system is American.

The rest, the outer shell and landing gear, are made by China itself.

“Flying international routes, even if we only built an empty shell, it is not a problem. Even if we are using the same in our country, there is no need to continue doing it.” Xie Kai said.

This is for Bai Yanjun.

He is not afraid that transport -10 is just an empty shell made in China.

Just like in his time, many people questioned that the C919 domestically produced large aircraft produced only an empty shell in China, and even caused a special article published by the People’s Daily to explain that the C919 is not afraid of this question.

At that time, the C919 engine was a LEAP-X1C turbofan engine developed by CFM International, a joint venture between General Electric of the United States and France SNECMA (Safran Group), which was also a follow-up model of GM-56; and the main flight control system, The wire control system, navigation monitoring system, etc., almost all involve the participation of international companies.

Many core technologies are provided by foreign companies.

Because of this, there is a perception that C919 is just a shell in China.

Even so, it is very gratifying, at least, there are large aircraft production in China. As long as the project is continuously improved, all domestic supporting facilities will be continuously improved.

Just like the C919 large aircraft domestically produced engine, the Yangtze River-1000 engine started to be developed under the stimulation of the huge market potential…

As for the success, Xie Kai didn’t know. After all, when he left the world, he had not heard of success. As long as he continued to do it, domestic engines would replace imported engines sooner or later.

Just like the J-10, from the development of the AL-31 engine imported from the Soviet Union, to the final use of the domestic turbofan-10, although it took more than 10 years, it was finally able to produce it by itself.

“Without the development of the project, there will be no continuous improvement of the supporting facilities.” Xie Kai knows what Zheng Yucheng’s heartache is.

Yun-10 is inherently inadequate.

It is not so easy for domestic technology to catch up with international technology. The aviation industry has been developed for 70 or 80 years, but how long has it been domestically?

Everyone can see the technological progress made in China over the years.

Maintaining such a speed, at most thirty to fifty years, will be able to match or even surpass foreign countries.

“I understand this, just thinking about making trouble. Obviously our Yun-10 has an engine.” Zheng Yucheng muttered.

Xie Kai glanced at him and said nothing.

The service life of turbofan-6, who can afford the cost?

An engine needs to be overhauled once for 300 hours of flight!

The overall service life, God knows how much.

If a turbofan engine of one or two million dollars is used for only one or two thousand hours, it will be scrapped, and several major repairs will be added in between, and the cost will exceed three million or even four million dollars…

How much is the flight cost per hour for Yun-10?

If airlines can’t make money, will they still buy it?

“Okay, there is no need to entangle too much with these matters. After getting the airworthiness license, you can fly at least -10 to Europe and the United States.” Zheng Yucheng does not want to entangle on this matter anymore.

In the aviation field, the domestic and international technological level is definitely not the 30-year gap between China and Western aviation technology that foreign media advertised, and the emergence of Yun-10 has been shortened to 15 years.

Many things require comprehensive development to truly shorten the technological gap.

“As long as the U.S. agrees to export, they will buy a few general-purpose GM-56s. At that time, they can also be used for the improved test flight of the Yun-10, or they can be used to disassemble and research the aviation power plant. Just gradually replace the parts on these American engines with domestic parts and use this method to develop!” Xie Kai said.

When Boeing first entered China, the Americans provided spare engines at regular intervals to check the seals on the outside of the box, fearing that China would secretly survey and copy their engines.

“Is the money ready?” Seeing Bai Yanjun nodding, Xie Kai asked Zheng Yucheng.

“Three million dollars in cash, one million dollars more.” Zheng Yucheng nodded and said, with a painful expression on his face, “Xie Kai, this is cash, do they dare to accept it?”

Millions of dollars in cash.

“Yes, do you want to replace it with something else that is valuable?” Bai Yanjun also felt that giving cash is not a good thing.

What’s more, these Americans didn’t bring much with them when they went out. How could they bring millions of dollars in cash back to China?

“It’s necessary. Only cash can make it more shocking.” Xie Kai said.