"These are the old and difficult problems of the domestic aviation manufacturing industry, and they have not been effectively solved. Li Mingshan sighed.

The engine thing makes everyone's head big when it comes to it.

It is not that the national defense science and technology workers do not work hard, they forget to sleep and eat, they do not seek personal honor, and they do not even care about personal gains and losses, and they have been engaged in it for decades, but they have not been resolved.

There are no shortcuts to technological development.

"You're not going to export the Super 7B, are you?" Long Yaohua was worried about this, "The Air Force is not equipped, and now it seems that the solution to the engine problem cannot be completed in a short time." ”

Now I just ask directly.

"We thought about this problem when we designed the Twin-Engine Super-7B before. Using the RD-33 engine, as an export model, the fire control radar uses ordinary radar, and the detection range and locking distance will be much less. Xie Kai said.

I can't hide it.

The single-shot Super-7A does not have much combat effectiveness at all.

Long Yaohua's face changed suddenly, "What else are you not going to sell?"

To come up with advanced things, it is not necessary to consider the use of the domestic air force first, but to sell them.

"Chief, we will not sell anything that endangers the country's national defense and security. Xie Kai said with a smile.

He knew that Long Yaohua was on fire at this moment.

"Don't give me a hippie smile here, Zheng Yucheng, Wang Guilin, is this what you mean?" Long Yaohua directly called the names of the two people who had been silent.

Zheng Yucheng and the two were extremely wronged, and the matter of the fighter is no longer the situation they said when they first took over the J-9 project.

Originally, it was said that only one light fighter that meets international needs should be built, and who knows how many times it will be done, and it will become what it is now.

The group stood outside the workshop like this, Long Yaohua's face was pale, and he was angry, and the people of 404 were really inflated now, and they couldn't do it if they didn't knock and knock.

"Chief, that's really not what we intended. The Super -7B was originally just an upgraded version of the Super -7A, and it was divided into two projects in order not to smash those engines. There are not too many modifications to the aerodynamic layout or anything, and now the aerodynamic shape of the super-7B has just completed the wind tunnel test......" Xie Kai could only explain helplessly, "If the air force is equipped with such a super-7B, unless we do not sell the super-7A, the performance and combat capability of the fighter can be evaluated." ”

Originally, it was a project that was divided into two, and if you want not to divulge technical secrets, you can't sell any of them unless you don't sell them.

Not for sale?

Can the Air Force's limited annual funding be afforded?

The answer is obvious.

Long Yaohua was angry for a while and couldn't refute it.

"Chief, the current situation is that our technical team needs projects to train and accumulate experience, and at the same time, we must also improve the supporting level in the process, otherwise in the end, we can only be limited to this place. Export, this is also a helpless thing. The country adopts a defense strategy, and every year military spending is shrinking, and we can only seek funding from outside. Wang Guilin spoke at this time.

The tone was full of helplessness.

He likes money, but he doesn't like selling good stuff even more.

Without these advanced equipment in China, 404 would not be where it is today.

The export of light weapons, no matter how large the quantity, can bring in a limited amount of funds.

Just like the high-precision sniper rifles made by the 404's gun design, the price is not cheap, so far, the army has not purchased any of them, just because this thing is too expensive.

A sniper rifle costs 100,000 yuan, and an ordinary 79 sniper and 85 sniper cost two or three thousand yuan each.

As leaders in charge of the unit's logistical work, one can imagine how they will choose in the face of an extreme shortage of funds.

Dozens of snipers with not so high accuracy sniper rifles, against a sniper with a high-precision sniper rifle, who can win?

The idea that there is strength in numbers still affects the building of the army, even if millions of people have been disarmed, or even completed.

"Okay, okay, let's understand the specific problems of aero engines, and then let's meet again to discuss how to solve these problems quickly and effectively." Li Mingshan saw that the atmosphere was depressed, and hurriedly played a round.

"Yes, chief, let's take a look at our power plant, since we took over, we have been constantly investing in updating the technical equipment of the entire factory, especially CNC machine tools, vacuum furnaces for powder metallurgy and other high-end processing equipment, which are the top in the country. Xie Kai was also cheeky and took the initiative to pull the leader to the workshop to see the new equipment.

Like a child showing off to his parents.

With the steps, Long Yaohua was no longer deadlocked, and followed Xie Kai to the workshop.

Dongfeng Power Plant, originally just an ordinary aero engine production plant, the main engine model is the turbojet engine, just like the 132 factory as the backup plant of Shenfei, this factory was originally also a backup of the 606 aero engine, mainly for the 132 factory.

The original equipment or something, Long Yaohua and others are very clear.

Once again, I entered the dilapidated factory and found that I had gone to the wrong place.

The factory building is still the original factory, but many of the equipment inside have been replaced with brand new ones.

Especially in the foundry that was originally used for melting and recasting, there is almost no such scene as in the past when you get to the door and the hot air is boiling and you don't want to go in.

A number of white stoves with a diameter of three or four meters are neatly arranged in the workshop, and each furnace is surrounded by a steel ladder to the top.

"Chief, this is the most advanced vacuum furnace in our country, for powder metallurgy blank sintering ......" Liao Dongfeng is very good at things, and when he entered the workshop, he hurriedly introduced the equipment to the chief.

"Is it the most advanced in China?" Long Yaohua, as the person in charge of the Commission of Science, Technology and Industry for National Defense, naturally knows what powder metallurgy means to the entire military industrial system.

Powder metallurgy, an emerging technology, was first developed as a special material for fighter engine needs.

Metals such as tungsten, molybdenum, and nickel have very high melting points, and it is almost impossible to melt and cast these metals with high melting points like ordinary steel smelting, and there are not many research institutes in the world that can melt those metal materials with a melting point of more than 3,000 degrees.

These materials can only be solidified together by means of high temperature and high pressure.

The overall turbine disc and blades in the turbofan engine are made of powder metallurgy, which not only has high material strength, but also saves raw materials and processing costs.

On aero engines, there are hardly a few parts that are easy to machine.

"No, the most advanced ones were brought back from the USSR. Xie Kai didn't say much.

Just mentioned one sentence, Long Yaohua knew.

Lao Fang and Zheng Quan have been engaged in all kinds of urgently needed equipment from the Soviet Union.

Of course, it is not so easy to have weapons and equipment and related things, but there is no problem in engaging in some basic supporting equipment.

In the whole workshop, most of the small stoves are domestic, and the most technical ones are from the Soviet Union.

"This thing is not complicated, but if you want to increase the temperature in the furnace and maintain it, it becomes difficult, especially the pure tungsten dry pot inside, that thing, one bite is millions!" Liao Dongfeng sighed.

It's a pity that domestic production can't be produced.

In the powder metallurgy workshop, Long Yaohua did not stay too long, from the raw material workshop of powder metallurgy to the mechanical processing workshop behind, all this made the eyes of the bigwigs brighten.

Especially in the precision machining workshop, Long Yaohua and they saw more than 20 CNC machining centers!

That's right, more than two dozen units.

All of them are machining centers, not basic CNC machines such as CNC lathes.

"Domestic?"

When Long Yaohua saw the equipment now, the first thing he asked was whether it was domestic.

He kept asking, but no one laughed at him.

Domestic production means that it can be promoted in large quantities in China and can be used by all units.

"The three-axis is one, but the accuracy is not good, and the machining efficiency is also low, so we use it for rough machining. The only ones that are really used for finishing are the two 4-axis machines in the workshop next to it. Chief, do you want to go in and have a look? You can go to the static electricity next to it, change your clothes......" Liao Dongfeng showed off his face.

This thing, nationwide, except for 404, is only available in Dongfeng Power Plant.

Imported!

The technical performance is very strong!

"What are you doing?" Long Yaohua shook his head, this thing is still not good to look at, and it is troublesome to see it.

Four-axis system, the third machine department and the fifth machine department attach great importance to it, and even the country has included CNC technology in the 863 key technology, even if the 404 Hongqi Machinery Factory has made a four-axis system, but the CNC machine tool can be solved by the CNC system from time to time.

Xie Kai nodded, not knowing what Long Yaohua wanted to say.

At this time, he was still worried that Long Yaohua would continue to settle accounts with him.

"In the future, there will be such an opportunity, and there will be more of them, and there are many units in our country that need this thing. Long Yaohua said.

Xie Kai nodded, if you can get it, you must get it, I don't know what happened in Singapore, I went to sell oil a while ago, and I didn't have time to talk to someone from Makino.

Gao Gang Zhengsan had negotiated to bring a group of technicians to China to build a factory, and I don't know if the goods were really planned to be like this.

There is no bottom to this matter, and Xie Kai can't come up with it.

For these CNC machine tools, it is very clear that all the things in the Batumi embargo list that can be obtained in China are through special channels.

Then I looked at the assembly workshop in the back, the working environment inside is no longer the original scattered feeling, each job has a special variety of tool cabinets, material cabinets, parts, and tools are placed in a neat and orderly manner.

Even the experimental prototype of the turbofan-6, which is still in the test workshop, with a blazing white flame spewing out of the tail and making a roaring sound, is not as dissatisfied as before.

"Chief, almost everything is ready now, before the east wind. When I went back this time, I went to Minister Shen and asked him to help preside over the work...... "Xie Kai put forward a request when Long Yaohua and them were in a good mood after their inspection.

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