After understanding the situation, Xie Kai really began to sympathize with Liao Dongfeng.

Zheng Yucheng and others did this, and they must have made sense, and Xie Kai didn't have much to say.

"But Lao Zheng and the AVIC are also highly confidential units. They contracted the canteen and recruited people from outside to save costs, which is not good for the confidentiality department." Xie Kai reminded Zheng Yucheng.

The old man shook his head, "The contractor is not from outside, but from their own unit. If you can't even do this job well, Liao Dongfeng should stop doing it as soon as possible."

The old man’s mountain doctrine is very serious.

The two did not discuss this matter again.

Without a long rest after the meal, dozens of people sat in the conference room in the office building of the power plant headquarters.

"About the large press, the main beam has been cast and rough processing has begun, and the quality problem of the main beam has been effectively solved. Other projects of the large press are being promoted in an orderly manner. Qin Fei's production plant has been completed and the driving and other installation has begun. Within one and a half years, the large press can be completed and put into production." Zheng Yucheng first introduced the progress of the large press, "The bottleneck that originally restricted our engine technology can be said to have been solved..."

"Wow..."

Warm applause rang out.

Whether it is the turbofan-8 or the turbofan-6, it can be considered a successful research and development.

After all, small-scale production has begun and the previous technical indicators have been met. The reason for dismissal is that the supporting projects are dismissed, and the engine is useless, and the other hand is a technical defect.

Other people's engines can fly for at least thousands of hours before they need to be overhauled.

This thing developed in China has reached its limit lifespan after running for hundreds of hours and cannot fly anymore.

"Before we took over, the Turbo Fan-8 had been produced in three batches of 12 units in a total of 3 batches. Until now, the engine is still installed on the Boeing 707 for test flights. The previous production was basically scrapped..." Sun Hong spoke with a heavy tone.

Zheng Yucheng looked at him, "After we took over, didn't we put down the production test of 4 units again, and would we continue to do the service life test?"

"It is already under production. I originally planned to wait until the large press is completed and use new processes such as the overall casting turbine disc, the overall receiver, and the forging of titanium alloy blades to improve the service life..." Sun Hong said.

Without making any explanation, Xie Kai knew that the slow progress of the large press had dragged down the engine's research and development progress.

He mentioned at the beginning that Zheng Yucheng, Wang Guilin and others began to plan to set up an engine factory, but they did not expect that they had such great courage and directly issued the test and production tasks of four engines again.

This is another tens of millions of dollars spent, plus subsequent experiments, which can cost hundreds of millions.

"Where is the Wrought Fan-6?" Zheng Yucheng asked.

"Let Mr. Jiang say this." Sun Hong looked at another thin old man.

Jiang Chenyang, a less-known but solid engine designer who was poached from 606, has a background in studying in the Soviet Union.

Zheng Yucheng had introduced several main responsible persons to Xie Kai before.

"The problems faced by the Turbo Fan-6 are the same as those of the Turbo Fan-8. They are now in the improvement design stage and the test of parts..." Jiang Chenyang introduced the situation of the Turbo Fan-6.

Xie Kai knew that the thrust-weight ratio of the turbofan-6g engine can reach 7.05.

That service life...

Through the introduction of the chief engineer of the two project teams, everyone has an understanding of their respective situations. Many people believe that as long as the large press is solved, this can improve a lot of performance.

Xie Kai knew that it was definitely not just that.

Otherwise, the problem of aviation heart disease would not limit the entire country for decades.

"Is there any breakthrough in terms of materials, especially in alloy materials that are resistant to high temperature and high pressure?" Xie Kai's question was very ordinary, but it made everyone silent.

Basic materials are the key.

Otherwise, no matter how good the design is, the materials cannot meet the basic requirements and cannot be achieved.

Jiang Chenyang had never seen Xie Kai before. He was originally very despised and only thought that he was the child of a 404 executive. He followed Zheng Yucheng here to get a seniority.

At this moment, I couldn't help but look at Xie Kai a few more times.

"It is not only necessary to solve the design problem but also the material problem, which is a hurdle that we cannot bypass. The turbofan engine and the inlet temperature of the turbine are directly related to the performance of the engine." Xie Kai said, "In such a situation, I want to ask everyone, how to solve the material problem?"

Xie Kai’s questions are becoming more and more acute and more direct.

The design capability of the engine is important, and basic materials are also important.

"Xie Kai, aren't we studying materials? In addition, we are also planning to cooperate with the Chinese Academy of Materials and other units... for the development of new engines, and also to jointly develop them with the Institute of 606,624,614 and other units..." Zheng Yu saw that Xie Kai's problem embarrassing the two chief engineers and hurriedly stood up to act as good people.

All scientific research teams in the country face basic issues such as materials, and Zheng Yucheng does not want to invest more in this.

That's a bottomless pit.

When everyone heard Zheng Yucheng talking about the new engine project, they looked at Zheng Yucheng with confusion.

Xie Kai was angry and didn't want to pay attention to Zheng Yucheng.

He actually knows everyone's mentality very well, let's talk about it first.

It is this mentality that the superiors do not pay enough attention and invest enough money, which will eventually lead to a breakthrough in domestic engines in decades.

"When designing, you must consider the material issues. If there is no one, you can ask the Materials Research Institute for helping them do it. Let's set a small goal for the turbofan-6 engine. If the thrust-weight ratio reaches 7, it will be qualified." Xie Kai looked at Jiang Chenyang and said casually.

As soon as these words came out, the entire conference room exploded.

"How is this possible! Even the thrust-to-weight ratio of 6 has not been reached."

"That's right, after so many years of work, it's been difficult to complete the research, but it has not been completely finalized, and the technical standards have been improved..."

"Insufficient funding, insufficient experience, and poor technical foundation. This kind of thing cannot be done in a short time."

Jiang Chenyang didn't say anything, and his face looked bad.

Why is Xie Kai pointing fingers here?

"The technical requirement I mentioned is not to make the original thing, the engine I have developed before, have a thrust-weight ratio of less than 5.8, right? What's the use of it? Is our fighter project lowering the standards and supporting engines?" Xie Kai's tone was a little heavier. "Either, according to the requirements, the thrust-weight ratio reaches 7, and the four engines in this batch have reached this level, or give up this project."

Xie Kai's words shocked everyone.

Zheng Yucheng didn't know where his fire came from.

How could they know that Xie Kai was so immense when he thought of these things. Turbofan Six is ​​still continuing its previous technical standards. Such things are not available for use by fighter jets. The funds invested can be said to be in vain.

As for the use of more than seven projects?

The Super 7 is used for trainers, and the cost of turbofan 6 is somewhat high, but the performance of turbofan 6 is insufficient for fighters.

"Comrade Xie Kai, now that the production of several new engines has to be completely adjusted, and many tests have not been completed." Sun Hong frowned and said.

He thought Xie Kai was looking for trouble because of the canteen.

"The improved engine is now just doing component tests, and the entire machine loading test has not been carried out. It requires a lot of work to be used in the aircraft..." Jiang Chenyang explained to Xie Kai.

He didn't question Xie Kai if he didn't understand the engine.

Their new design, improved model of the turbofan-6 engine, has a thrust-to-weight ratio that is close to what Xie Kai proposed.

The material problem is solved and the strength problem is solved. As long as the temperature airflow entering the turbine disk is increased, this problem can be solved.

It is very simple in theory. A few words of questions require breakthroughs in many fields such as design, materials, and manufacturing processes.

"Then use these four engines to test the whole machine!" Xie Kai said without hesitation. "I said at the beginning that our entire 404 is at all costs in the aircraft engine! No matter how much money or how much time it takes, it will be smashed. I don't want us to design a new fighter. As a result, because the lack of engines in China will go abroad to accompany us and buy it in a low voice..."

This is one aspect.

Aero engines must be devoted to it.

Xie Kai’s fire is completely a conservative behavior of Zheng Yucheng and others.

"We used to purchase their aircraft engines in the Soviet Union. We originally wanted to get a better Al-31 engine. This was not the most advanced of the Soviets, but they kept silent. Even their rd-33 engine had only 50 kilo-nons without thrust and only 81.4 kilo-nons. The fuel consumption rate of starting after-force is 2.09, the theoretical thrust-to-weight ratio is 7.87, and the delivery state thrust-to-weight ratio is 6.62. It is such an engine, with a price of 2.3 million US dollars!" Xie Kai's tone became more and more sad.

If you only look at the pulsor-to-weight ratio of these data, there is no problem.

You can see the fuel consumption rate.

Therefore, the MiG-29 was rated as the short-legged king. One engine cannot support the MiG-29 in the sky, and two units, the fuel consumption is too terrifying.

Everyone didn't know that the final purchase price of the rd-33 engine was only half of the 2.3 million US dollars, but they knew how difficult the negotiation process was.

Because there is no.

It's even more because it can't be produced in China.

If you can't figure it out, it's normal to be blackmailed.

"The 200 rd-33 engines cost hundreds of millions of dollars. They have been bought and the money has been given! Do we still have to continue doing this?" Xie Kai's words silenced everyone.

No one dares to stand up with his chest now and say we can make a better engine ourselves.

If you are not as strong as others, you have to build your backbone and strengthen your strength.

"So, we must continue to do it, no matter how difficult it is, no matter whether others understand it or not. I don't want our new model of fighter to be designed, waiting for the engine, and I don't want to negotiate with foreign countries to purchase engines again!" Xie Kai was a little sad.

Many times, he is frustrated.
Chapter completed!