"I don't know. Boeing's cooperation with us is only an intention at this time, and it is estimated that they will evaluate our production line and production technology before making a decision. Of course, if we want to cooperate, the premise is to help us get airworthiness certification, and GM's GM-56 engines will also be exported to us for the improvement of the Y-10. Bai Yanjun said.

Now just an intention.

Xie Kai was a little strange, why Zheng Yucheng, who has always liked fried hair, didn't say anything today.

Hansen Miller was in first class with several other Americans, accompanied by technicians who were waiting for the aircraft from time to time, and they needed to introduce the performance of the aircraft, as well as some domestic production.

Behind this, whisper communication, and the other party can't hear it at all.

"What's this, isn't it said that the market is exchanged for technology? The Americans' planes can enter our domestic market, and we can also grab their market, and the production cost is much lower than theirs. Even if the technical performance is a little worse, it will not be too much, and the market competitiveness of our Y-10 is greater for the same type of aircraft. Zheng Yucheng said proudly.

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 honeymoon period between China and the United States, and after the end, it is estimated that the technical cooperation between Boeing and China will come to an end.

Even Airbus' cooperation negotiations with 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 development is too fast, and if we cooperate, we will delay the modification of the Y-10, and they do not know that the Y-10 wide-body passenger aircraft will soon enter the prototype trial production link. Bai Yanjun explained.

In international negotiations, all parties are playing with their hearts.

If you don't play with your heart, what kind of family background you have in China will be easily known.

Xie Kai suddenly remembered that Boeing had never cooperated with China, and even terminated McDonnell Douglas and China's cooperation after the merger of McDonnell Douglas aircraft, so that China's large aircraft factories had no large aircraft to produce from then on, until the later ARJ-21 and C919 large aircraft appeared.

Now Boeing is working with Hongqi Machinery Factory?

Could it be that the Americans want to take this opportunity to understand China's specific manufacturing capabilities?

One light and one dark.

"You don't have to worry about them seeing things they shouldn't. Although there has been no leapfrog breakthrough in domestic CNC machine tool technology in recent years, at least there has been a good development, and there are many CNC machine tools produced every year, most of which are used in the aerospace field. There are other breakthroughs in materials, and the core things are all in our Qilian Mountain. Zheng Yucheng said proudly.

There is no fear of espionage by the Americans at all.

Anyway, Qin Fei is just an aircraft factory for the production of transport aircraft.

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

If China has already made a breakthrough, they will export to China technologies that are outdated or even easily deviate from the direction of scientific research.

"Let's get an airworthiness license first. With this thing, it's really not possible, let's build our own air transport company and buy our own plane!" Xie Kai said.

The Y-10 will definitely have to continue its research.

"GM's GM-56 engine is much better than Pratt & Whitney. ”

"Our own engine is based on some of the technology of the GM-56. It's just that we haven't been persuaded by Shen Lao to help us organize a national research ......," Xie Kai shook his head and said, "Since we want to cooperate, we can introduce a few units from them first." ”

Knowing that the cooperation will definitely not last, naturally, he is not afraid to spend millions or tens of millions of dollars more to buy GM's engines.

Although the Northeast has secretly surveyed and mapped the drawings of the GM-56 engine, Xie Kai and the others have also got their hands on the grounds that they have a share in the sight, and there is far from the actual prototype in front of them for people to study slowly, and it is easier to understand it by analyzing it slowly.

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

Up to now, the turbofan-6 engine can barely be put into the practical stage, but the practical life is really impossible to look at.

"Buy an American engine?" Zheng Yucheng didn't know what Xie Kai wanted to do.

"Isn't our turbofan-10 ready to use the core engine technology of the GM-56 as the foundation? Only by standing on the shoulders of the Americans can we catch up with them faster. It is necessary not only to engage in the core aircraft of the Americans, but even to engage in the technology of the AL-27 core aircraft installed by the Soviets on the Su-31. Xie Kai said.

Zheng Yucheng stopped talking.

He had learned how important the technology of the turbofan engine was.

As long as this is in place, it is easy to solve both the high-power gas turbines used in power plants and the high-power gas turbines used in ships.

Now there is a shortage of this thing in China, and no unit has proposed to do this before, on the one hand, because the technical difficulty is too great, the supporting facilities are not perfect, and on the other hand, because of financial problems.

404 has tens of billions of funds in hand, and the problem of capital is no longer a problem, and the supporting 45,000 tons of large presses have been successfully put into production, 65,000 tons of large presses have been started to build, and nickel-based superalloys that can withstand higher temperatures have also made breakthroughs, but the cost is higher, and there are others, which are not a problem.

If there is a problem, it is the ability to design.

No one can do anything about this.

You can't let the Americans provide the core machine technology in China, right?

Americans are not so stupid.

"In this way, wouldn't we only build a shell for the Y-10 in the future?" Zheng Yucheng was a little unhappy.

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

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

"Even if we only build an empty shell ourselves, it's not a problem to fly international routes. I'm afraid that this is also the case for our domestic use, so there is no need to continue to do it. Xie Kai said.

These words were said to Bai Yanjun.

He is not afraid that the Y-10 is just an empty shell made by the country.

Just like in his time, many people questioned that the C919 domestic large aircraft was only made of an empty shell in China, and even caused the People's Daily to publish a special article to explain that the C919 was not afraid of this question.

At that time, the engine of the C919 was the LEAP-X1C turbofan engine developed by CFM International, a joint venture between General Electric of the United States and SNECMA (Safran) of France, which was also the successor model of the GM-56.

Many of the core technologies are provided by foreign companies.

Because of this, there is a perception that C919 is just a shell made in the country.

Even so, it is very comforting, at least, there is a large domestic production of aircraft. The project is in, as long as it continues to improve, all domestic supporting facilities will continue to improve.

Just like the C919 large aircraft domestic engine, the Yangtze River-1000 engine began to be developed under the stimulation of huge market potential......

As for whether it was successful or not, Xie Kai didn't know, after all, when he left that world, he hadn't heard of success, as long as he continued to do it, sooner or later domestic engines would replace imported engines.

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 supporting facilities. Xie Kai knew what Zheng Yucheng's heart hurt.

The Y-10 is inherently deficient.

It is not so easy for domestic technology to catch up with the international one, and the aviation industry has developed for seventy or eighty years, and how long has the domestic industry developed?

The technological progress made in China in recent years can be seen by all.

If we maintain this rate, we will be able to catch up with or even surpass foreign countries in a maximum of thirty or fifty years.

"I understand this, I just want to make trouble. Obviously, our Y-10 has an engine. Zheng Yucheng muttered.

Xie Kai glanced at him and didn't speak.

Who can afford the service life of the turbofan-6?

One engine needs to be overhauled once after 300 hours of flight!

Overall service life, God knows how many.

If a turbofan engine of one or two million dollars is scrapped after only one or two thousand hours of use, and several major repairs have to be added in the middle, the cost will exceed three million or even four million dollars......

How much does the Y-10 cost per hour of flight?

If airlines can't make money, will they buy them?

"Alright, there's no need to dwell too much on these things. After obtaining the airworthiness license, at least the Y-10 can fly to European and American routes. Zheng Yucheng didn't want to dwell on this matter anymore.

In the field of aviation, the technical level of domestic and international is definitely not the 30-year gap between China and Western aviation technology as advertised by foreign media, and the appearance of the Y-10 has been shortened to 15 years.

A lot of things need to be developed across the board in order to really close the technology gap.

"As long as the U.S. side agrees to export, it will buy a few GM-56s from General Motors. At that time, it can also be used for the improved test flight of the Y-10, and it can also be used for dismantling and research for the aviation engine power plant. If the time comes, we will 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 spare engines provided by the Americans came to check the seals on the outside of the packaging boxes every once in a while, for fear that China would secretly map and copy their engines.

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

"Three million dollars in cash, an extra million dollars prepared. Zheng Yucheng nodded and said, the expression on his face was painful, "Xie Kai, this is cash, do they dare to accept it?"

Millions of dollars in cash.

"Yes, do you want to exchange it for something else valuable?" Bai Yanjun also felt that it was not a good thing to send cash.

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 home?

"It's just this thing, only cash, can be more shocking. Xie Kai said.