Whether it is the price of the Flying Shield-359 or something else, the parties do not have much opinion, and the contract is directly prepared.

When Ibrahim searched for Shakai again, he found no one.

Xie Kai and Wang Guilin went to Dongfeng Power Factory.

In recent years, Dongfeng Power Plant has definitely been the fastest developing unit in the domestic aviation power system, and has almost all the outstanding technical personnel of the domestic power unit.

The turbofan-8 for the Yun-10 and the turbofan-6 for the J-9 continued to be developed at the Dongfeng Power Plant and began to be manufactured in small batches.

The successful commissioning of the 45,000-ton large press has made a breakthrough in the key manufacturing processes of these two projects, and now both projects have entered a period of rapid development.

Liao Dongfeng took Xie Kai and Wang Guilin to the assembly workshop, and introduced the situation of the two projects.

Based on the original Rongcheng Engine Factory, almost all of the new CNC machining equipment in the current precision machining workshop is much cleaner.

For the machining workshop, whether it is Wang Guilin or Xie Kai, there is not much attention.

In Rongcheng, there is no unit of mechanical processing equipment as strong as the current Dongfeng power plant, after 404 took over the power plant, just the equipment and plant investment, more than 200 million.

However, no matter how strong the machining capacity here is, it can't be stronger than the precision machinery workshop of the Hongqi Machinery Factory in the 404 base.

There is only one four-axis in Dongfeng Factory, and it is still the top equipment for the finale, and the five-axis linkage machining center cannot be seen here at all.

The four axes of the Hongqi factory have almost become the absolute main force of processing, and the five axes are now also beginning to play a role in the development of China's national defense.

Therefore, these two people don't look down on this bit of technology at all.

The entire turbo disc of the turbofan engine is machined by 404.

"How is the preparation of the turbofan-10 project?" Xie Kai is most concerned about the turbofan-10.

Only by developing a high-thrust engine with a thrust-to-weight ratio of 10 such as the turbofan-10 can we further improve it, and study the vector engine with a vector nozzle at the tail.

Without a vector engine, it would be a joke to engage in stealth fighters.

"It's still in the argumentation stage. From the technical basis of turbofan-6 and turbofan-8 to the engine with a thrust-to-weight ratio of 10, it is not easy to do it theoretically. There was a lot of helplessness in Liao Dongfeng's tone.

The domestic experience and technical reserves in turbofan engines are insufficient, and it is indeed difficult to launch turbofan engines with a thrust-to-weight ratio of 10.

"There's nothing we need to do, and now it's up to you. Xie Kai said.

At the beginning, Xie Kai said that the 404 would do whatever it took for the sake of the aero engine.

After the transfer from Dongfeng Power Plant to 404, there was no deduction at all in terms of infrastructure support and research funds.

In the entire 404 subordinate factory, the research funds of Dongfeng Power Plant are even more than other projects such as Yunshi.

In order to solve the problem of aviation heart disease.

"For the specific situation, let's let Mr. Jiang introduce it. Liao Dongfeng was in a cold sweat.

Xie Kai didn't say anything else, he knew that the engine was not so easy to come out, think about it, the Qinling engine took decades to come out, and now his expectations for turbofan ten are not so eager.

Even if a stealthy J-20 is made, it will be absolutely secret.

When the country's economy has not developed, there are hundreds of millions of stealth fighters at every turn, not to mention that they cannot afford to equip or use them.

American F-22, fly for one hour, not counting maintenance, cost 160,000 US dollars, equivalent to soft sister coins, millions!

Now the Air Force cannot afford such a fighter as the F-14.

The domestically equipped J-7 and J-8 are not vigorously flown by the pilots.

Jiang Chenyang had received the news that Wang Guilin and Xie Kai were coming before, and he had been waiting in the office for a long time.

Usually he is in the design office or other project teams, and he doesn't spend much time in the office.

Sun Hong, who was in charge of turbofan-6, was also waiting in the office.

Both engines have been solved because of the key processes, and now they are all entering intensive experiments before large-scale mass production, which is the cost consumption of the entire Dongfeng Power Plant.

Originally, engaging in engines has never made people feel so aggrieved.

"Director Wang, Xie Kai. Seeing a few people enter the office, Jiang Chenyang and Sun Hong both stood up.

Wang Guilin pressed his hands weakly, signaling them not to be polite.

"Two bosses, what's the situation now?" Xie Kai asked.

Sun Hong looked at Xie Kai with a smile on his face, "At present, the turbofan-6 is still undergoing continuous test runs on the high-altitude platform, and it has been engaged in more than 330 hours, and the goal is 500 hours, so the problem should not be too big." ”

The turbofan-6 was originally for the J-9 project.

The J-9 was dismounted, and there was no point in continuing the research of the turbofan-6 engine.

Now, in order to gain basic technology and experience, the 404 purchased 200 RD-33 engines from the Soviet Union, and still invested funds to continue to complete the modification of the turbofan-6.

This engine is not useless.

When it was launched in 84, the turbofan-6 encountered in the early stage of development of the starting difficulties, compressor surge, turbine inlet temperature and vibration problems were all effectively solved, and even the improved model of the turbofan-6G increased the thrust-to-weight ratio to 7.05, which is a very big progress.

It's just that I had to get off the horse because I lost the applicable object.

404 took over, and the Super-7 project was established, which has an applicable object.

Not only can the super-7A project use this engine, but its main purpose is to use it on the super-7B.

"The high-altitude test bench has been tested for 500 hours of ultra-long operation?" Xie Kai didn't have too many surprises.

The performance of the turbofan-6 is relatively advanced, but compared with the mainstream engines used by the third-generation fighters in various countries around the world, it is still worse, and it is not too easy to use for transport aircraft.

Therefore, the biggest role of the turbofan-6 is to use it as a foundation and accumulate experience.

"Yes. More than 300 hours of test running of the whole machine have been done before, and after continuing to research and investment, 4 units of a batch were produced again, mainly used for continuous high-altitude test bench testing. Once this is done, it can be used on military aircraft for further experiments. Sun Hong said excitedly.

Xie Kai was not as optimistic as him, "What do you choose for the military aircraft for testing?"

"J-7. At the moment the Super-7A is not too suitable. Sun Hong said.

The J-7 is replaced with an engine with a thrust-to-weight ratio of more than 7, whether it is range, bomb load or others, it will increase to a great extent.

Exactly how it will be won't be known until experiments on air platforms are used.

Xie Kai nodded, the progress of the turbofan-6 was fast, which was expected.

At the time of taking over, the research and development of the turbofan-6 was completely in line with the previous technical indicators, but the J-9 was dismounted.

"What about the turbofan-8?" Xie Kai was more concerned about this.

To engage in the core engine of turbofan, the turbofan-8, a turbofan engine that imitates the American JT3D engine, is the real foundation.

When the time comes, we will integrate other technologies to create China's own engine.

Whether it is the Super 7B, or the future stealth fighter, or even the No. 10 project of 132, Xie Kai hopes that there will no longer be a lack of engines.

At the beginning, the J-10 was made, and when the Taihang engine was not yet domestically produced, it was the AL-31 engine imported from Russia, and it was not until the final mass production of Taihang that it was finally replaced with a domestic heart.

What Xie Kai hopes is to have a Chinese heart first, and then design and develop his own fighter according to the performance of the Chinese heart.

"The turbofan-8 is now also in the test phase, and the new batch of engines has not yet begun to be assembled. This is the time when standardization is mainly underway. Jiang Chenyang said.

He was worried that Xie Kai would say that they were making too slow progress.

"It's a good thing to standardize first. It can't be like before, three batches of 12 engines were produced, and none of them became productive. Xie Kai nodded and said, "The turbofan-8 is for the Yun-10, and now the new model of the Yun-10 has been positioned as a 150-ton wide-body passenger aircraft, and I don't know the improvement ...... of the turbofan-8."

Xie Kai is worried that the engine will affect the future of Yun Shi.

It is imperative to engage in a wide-body passenger aircraft.

Once the engine can't keep up, everything is in vain.

"I have communicated with them before, and the improved version of the turbofan-8 is also prepared for this project. Now the assembly has just been completed, and the commissioning work has not yet begun. ”

The current progress, relatively speaking, is already very good.

Every year, 404 large funds are smashed in Dongfeng Power Plant, and if you can't keep up with the progress, it's a bit too much.

Liao Dongfeng has always been a little worried.

The purpose of Wang Guilin and Xie Kailai is mainly for turbofan-10, a high-thrust engine with a thrust-to-weight ratio of more than 10.

But now, even the basic plan has not been decided.

The more Xie Kai asked about the basic project, the more worried he became.

The more he didn't ask, the more worried he became.

Turbofan-10 up to now, are still in the demonstration stage, not even much achievement, all kinds of basis show that the current foundation, is not suitable for such a performance index of high-thrust engine, just like the beginning of the turbofan-6 situation, lack of technical reserves, the main components of the test research is not sufficient, especially the core engine compressor parts low efficiency, small surge margin, poor quality and a series of problems.

The technical difficulty of the thrust-to-weight ratio of 7 to the thrust-to-weight ratio of 10 is far from being as simple as 7+3.

"So, the turbofan-10 is not suitable for work now?" Xie Kai frowned.

"It really doesn't fit. It didn't seem to notice Xie Kai's attitude, Jiang Chenyang nodded seriously, "The technical performance indicators of the turbofan-10 require that the temperature of the turbofan inlet must be further increased, which needs to reach about 1450 degrees, and now the temperature of our turbofan inlet is only less than 1200 degrees." ”

"Material or process?" Xie Kai took a deep breath.

He knew that it was not easy to build a turbofan-10, but he didn't expect that in the end, he would be stopped by basic technology.

"Whether it's the material or the process, there are problems. We need superalloys that are more resistant to heat and have better strength. At the same time, there is a need for better manufacturing processes......"