Missile engines are fundamentally different from aero engines.

Even if the missile engine bears higher temperatures than the aero engine during operation, in the process of use, even if it is an intercontinental strategic missile, the operating time is only half an hour and less than an hour, and at the same time, in order to reduce the weight, it is divided into several stages, and the propellant of the first stage will be separated after burning, and the engine of the next stage will be ignited.

As a result, the service life requirements for the engine are much lower.

Aero engines are different in that they need to work continuously and repeatedly, withstand ultra-high pressure and ultra-high temperature for a long time, and must have longer durability and higher reliability in such a working state.

The requirements for civil aircraft engines in this regard are even more stringent than those of military engines.

In the high-temperature and high-pressure environment, the materials are not up to standard, the production process is not up to standard, and the produced engine will not be able to reach the service life.

This is the case with the turbofan 8 of the Yun-10, which does not dare to be used for long-term flight even after various tests.

"What if we want to produce larger missiles?" asked Zheng Yucheng.

"It is not appropriate to discuss this issue at this time. Xie Kai looked at the few people around him and said to Zheng Yucheng.

Zheng Yucheng also came to his senses.

When they went to the West Airlines, the main thing was to understand the state of the imitation of the bass engine. Judging from the current situation, if they cannot make a breakthrough, it will be very difficult for them to use domestic engines for the fighters they cooperate with the Iraqis.

If you can't use a domestic engine, then you can only wait.

Or, find a way to get an engine from abroad.

Military high-thrust turbofan engines are internationally embargoed against China.

The Iraqis are still a few years away from being sanctioned by the rest of the United States and the rest of the world, and it will be even more difficult to bring them in.

"If you need it urgently, we can help you procure ...... from Rolls-Royce in the UK," Tian Rui said to a few people as he left.

They are also helpless.

Everyone wants to be able to produce it now.

"Let's think about it again, after all, it is only a cooperation intention at present, and the specific design and what engine is needed have not yet been completely determined. Zheng Yucheng said.

I haven't even skimmed the eight characters yet.

"Do you really want to engage in fighter planes?" On the way back, Du Shengfeng asked Zheng Yucheng. "What the hell is 404 for? It seems that you can meddle in any project!"

"As long as we make money, we want to do it. Zheng Yucheng said with a smile.

But they were depressed in their hearts, and in Western Airlines, they understood in their hearts how difficult it was to meddle in the fighter project.

People have said that there is no shortage of money, which means that it is impossible to rely on money to smash the technology out.

Like a large press, at least it can be produced, and there will be no problem as soon as the funds are in place.

Aero engines don't.

"Director Du, in the forging equipment production base, I estimate that you have to set up a powder metallurgy manufacturing unit. Xie Kai said to Du Shengfeng, "Otherwise, we will have no unit supply of raw materials." ”

"Aren't there all kinds of departments such as Western Airlines?" Du Shengfeng didn't understand.

Zheng Yucheng knew Xie Kai's thoughts, "Xiao Xie means that a complete industrial chain will be formed in the base. From the processing of the upper material to the subsequent machining, it is done as much as possible in that base or surrounding area. ”

Centralized supporting facilities will save a lot of money.

"This has to be communicated with the Institute of Materials and other units. As soon as Du Shengfeng said this, he couldn't make the decision, and he had to communicate with other units, which made Zheng Yucheng very dissatisfied.

"Let's not be in a hurry first, we can always think of a way. Zheng Yucheng saw that Xie Kai was worried and comforted him.

Xie Kai smiled bitterly, "What am I anxious about?"

Du Shengfeng looked at the two of them, not understanding what they meant.

When the group left the West Airlines, they went directly to Qin Fei.

The forging base will be built next to Qin Fei, which also belongs to the plain area, so it is more appropriate to build a forging base.

"Director Zheng, are you here?" Ma Fengshan personally came to greet a few people.

"Mr. Ma, aren't you on the second side?" Xie Kai was curious, wasn't Ma Fengshan in the double to make a big press?

When did you come back?

"The institute is organizing a relocation here, and the first batch of personnel will come over in the next few days, so we have to prepare everything. Ma Fengshan explained, "Xiao Cheng is over there, there will be no problem." ”

"When will the comrades from the institute come over?" asked Zheng Yucheng.

"I'm on the train over there tonight. ”

"Mr. Ma, to what extent has our Yunshi prototype been assembled?" Xie Kai was worried about what was the situation of the plane in the workshop of the 5703 factory.

The domestic cooperation with McDonnell Douglas will be signed in May.

After signing the contract, McDonnell Douglas will start working on the 5703 factory, and must assemble their prototype before this time, and must also complete the ground test work, so that the aircraft can fly from Shanghai to Qinfei's test field.

"We're working overtime to assemble. Assembly should be possible by the end of May. Ma Fengshan looked at Xie Kai, he didn't understand why he asked this now, he reported to Zheng Yucheng a few years ago.

"Can it be assembled before May? It must have the ability to take off!" Xie Kai was a little anxious. "McDonnell Douglas has now reached the final stage of negotiations with China, and if nothing else, a cooperation agreement may be reached in May, and the two sides have been talking for too long. ”

"So fast?" Zheng Yucheng looked worried.

McDonnell Douglas came in, and it was definitely not a good one.

"I haven't heard of it, but during the period before the Chinese New Year, the leaders of the 5703 factory and the leaders in charge of Shanghai City have been running to the capital for a long time. McDonnell Douglas people visited the assembly plant again a few years ago. Ma Fengshan also frowned.

"What, what is the contradiction between you and McDonnell Douglas?" Du Shengfeng listened confusedly.

What does McDonnell Douglas do?

"The contradiction is too big, it can be said that we can't share the sky!" Zheng Yucheng said hatefully, "If it weren't for them, why would we have to borrow Qin Fei's assembly workshop and factory?"

"What does McDonnell Dalwell Douglas do?" Du Shengfeng really didn't know McDonnell Douglas.

"McDonnell Douglas Aircraft Manufacturing Company, they're coming in, how about transporting ten to make room for them......" Xie Kai briefly explained to Du Shengfeng.

He didn't explain Du Shengfeng to him just because he was a leading cadre, but he had a purpose.

"Director Du, how are you in the railway system?" Xie Kai's question spanned too much, and several people were a little unclear about his purpose for a while.

"Okay, if you're going to transport something, it's no problem to get a few freight train batches. If it's a wagon, it's even better to say, all over the country, as long as the train can get there, you just ask. "Du Shengfeng, this is really not bragging.

As the director of the Commission of Science, Technology and Industry for National Defense in charge of a region, he must have a good relationship with the railway system, after all, a lot of military supplies need to be transported by rail.

"Do you want to remove all the equipment related to Yun Shi before McDonnell Douglas comes in?" Zheng Yucheng understood Xie Kai's purpose.

Ma Fengshan couldn't express his opinion on this matter.

"Moving the factory?" Du Shengfeng asked.

"Yes, the Yunshi production line in the 5703 factory, those equipment, are all invested by the state, and many of the supporting equipment of Yunshi are dedicated to large aircraft like Yunshi, and Qin Fei does not have them here. The new Yunshi will be assembled later, or the parts of the key parts of the previous prototype will be replaced, and it will be ......necessary to re-produce," Xie Kai nodded and said.

The Yunshi production line could not be used for the production of McDonnell Douglas at all.

McDonnell Douglas came in, and the fate of these lines was to be abandoned, piled aside and rusted or something.

"If you do this, will something happen then?" Ma Fengshan was a little worried.

"Mr. Ma, you should know that once the contract is signed, everything in the 5703 factory will have to belong to the new joint venture company! When the contract is not signed, it belongs to the Yunshi project, and no one can say anything if we relocate! Of course, no one knows better. Xie Kai said.

From the beginning, he was going to leave an empty shell for McDonnell Douglas, and Xie Kai didn't think there would be anything unauthentic about this matter.

McDonnell Douglas didn't have a good heart when he came in, and if they came to help China develop the civil aviation aircraft industry, it is estimated that they themselves would not believe it.

"When you are ready, when the train is needed, call me three days in advance. Du Shengfeng licked his lips and said to Xie Kai and Zheng Yucheng, "Those devices were moved here, right?"

Xie Kai looked at him with a strange face, feeling that this guy helped because of this.

"Do we have any other place to put those equipment? The first Yun-10 has already been grounded......" Xie Kai sighed.

Ma Fengshan on the side also looked embarrassed.

With sufficient funds, Yun Shi did not dare to fly casually, and now every time he flies, he must make a more comprehensive and meticulous inspection to ensure that the plane will not disintegrate at an altitude of 10,000 meters at an altitude of 10,000 meters on the next flight.

"It's really a big deal. Zheng Yucheng said.

Ma Fengshan saw that both of them were staring at him, "Speed up, the assembly can be completed by the end of March, and the ground test can be completed within twenty days, as long as there are no major problems......"

"When the assembly is completed, some equipment that is no longer needed is ready to be packed and gradually transported away, Mr. Ma, the leaders of the 5703 factory, you have to rely on you to greet them...... Xie Kai said.

"I'll find a time to go here, it's not a trivial matter after all. Zheng Yucheng saw that Ma Fengshan was embarrassed and took the initiative to take over the matter.

He is the best at doing this kind of self-interested thing.

"This has to be a bit of a low-key thing. Xie Kai reminded Zheng Yucheng.

Emptying Factory 5703 and getting rid of a group of skilled workers, once these things are discovered, they will definitely cause a lot of waves.

"In the early days, we were able to get skilled workers here. Zheng Yucheng said, "It doesn't take many people to assemble a transport ten." Gradually, workers quit their jobs and go to the sea, and no one can stop them......, right?