"These are the long-standing problems in the domestic aviation manufacturing industry and have never been effectively solved." Li Mingshan sighed.

The engine matter will make everyone suffer.

It’s not that the national defense science and technology workers do not work hard, and they forget to eat and sleep, do not seek personal honor, or even ignore personal gains and losses. After decades of work, they have not been resolved.

There is no shortcut to technological development.

"Aren't you going to export the Super-7b?" Long Yaohua was worried about this, "The Air Force is not equipped, and now it seems that solving the engine problem cannot be completed in a short time."

Now just ask directly.

"We considered this issue when we designed the dual-engine Super-7b. Using the rd-33 engine, as the export model, the fire control radar uses ordinary radar, and the detection distance and locking distance will be much smaller." Xie Kai said.

This matter cannot be hidden.

Single-shot Super-7a does not have much combat effectiveness at all.

Long Yaohua's face suddenly changed, "What else do you have to sell?"

When creating advanced things, we don’t think about the use of the domestic air force first, and we have to take out.

"Chief, we will not sell things that endanger the national defense and security." Xie Kai said with a smile.

He knew that Long Yaohua was getting angry now.

"Stop giving me a smile here, Zheng Yucheng, Wang Guilin, what do you mean?" Long Yaohua directly pointed out the names of the two people who had been silent.

Zheng Yucheng and the others were extremely wronged. The fighter jet was no longer what they said when they first took over the J-9 project.

It was originally agreed that we would only build a light fighter that meets international needs. Who knows how many things to do, and that's what we do now.

The group stood outside the workshop like this, with Long Yaohua's face turned pale and he was so angry that he was not angry. The 404 people are indeed very inflated now, and they can't do it without knocking.

"Chief, this is really not our original intention. Super-7b was originally just an upgraded version of Super-7a, but in order for the engines to not be ruined, it was divided into two projects. The aerodynamic layout and other things have not been modified. Now the aerodynamic appearance of Super-7b has just completed the wind tunnel test..." Xie Kai could only explain helplessly, "If the Air Force is equipped with Super-7b, unless we do not sell Super-7a, the performance and combat capabilities of the fighter can be evaluated."

It was originally a project that was divided into two parts. If you want to not disclose technical secrets, you would not sell any one.

Not selling?

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

The answer is obvious.

Long Yaohua was in a hurry and could not refute it.

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

The tone was full of helplessness.

He likes money, but he doesn't like selling good things.

Without these advanced equipment in China, the 404 would not have been today.

The export of light weapons, no matter how large these things are, the amount of funds they can bring is limited.

Just like the high-precision sniper rifles created by the 404 firearm design, the price is not cheap. So far, the troops have not purchased any of them, just because this thing is too expensive.

A sniper rifle costs 100,000 yuan, while an ordinary 79 sniper and 85 sniper only costs two or three thousand yuan per.

As leaders in charge of the logistics work of the troops, it is conceivable how they will choose when funds are short.

Who can win if dozens of snipers holding sniper rifles with less precision against a sniper who holds a high-precision sniper rifle?

The idea of ​​a large number of people and a large force still affects military construction, even if it has been dismissed by one million, it has even been completed.

"Okay, okay, I'll understand the specific issues of aircraft engines. Then we will hold a meeting to discuss how to solve these problems quickly and effectively." Seeing the depressed atmosphere, Li Mingshan quickly smoothed out the situation.

"Yes, the leader, let's take a look at our power plant. Since we took over, we have been investing and updating the technical equipment of the entire factory, especially CNC machine tools, vacuum furnaces and other high-end processing equipment for powder metallurgy, are the top-notch in the country." Xie Kai was also shameless 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 no longer had a stalemate and followed Xie Kai into the workshop.

Dongfeng Power Plant was originally just an ordinary aircraft engine manufacturer, and its main engine model was turbojet engine. Just like Factory 132 as Shenyang Fei’s backup factory, this factory was originally a backup of the 606 aircraft engine, mainly supporting Factory 132.

Long Yaohua and others were very clear about the original equipment.

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

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

Especially in the casting workshop that was originally used for melting and recasting, there is almost no previous scene where the heat boils when you first arrive at the door and makes people not want to enter.

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

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

"The most advanced in China? Do we produce it ourselves in China?" As the head of the National Defense Science and Technology Commission, Long Yaohua naturally knew what powder metallurgy meant to the entire military system.

Powder metallurgy, an emerging technology, was developed in the beginning for the special materials needed for fighter engines.

Metals such as tungsten, molybdenum and nickel have very high melting points. It is almost impossible to melt and cast these metal materials with high melting points like ordinary steel smelting. There are not many research units in the world that can melt metal materials with melting points as high as more than 3,000 degrees.

You can only use high temperature and high pressure to solidify these materials together.

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

There are almost no parts to be found on the aircraft engine for processing.

"No, the most advanced one is what we brought back from the Soviet Union." Xie Kai didn't say much.

Just one word, Long Yaohua knew it.

Lao Fang and Zheng Quan have been working on various urgently needed equipment from the Soviet Union.

Of course, weapons and equipment are not that easy to do, but there is no problem in developing some basic supporting equipment.

In the entire workshop, most of the small furnaces are domestically produced, and the ones with the highest technical content are all derived from the Soviet Union.

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

Unfortunately, it cannot be produced domestically.

In the powder metallurgy workshop, Long Yaohua and the others did not stay for much time. From the powder metallurgy raw material workshop to the machining workshop behind, all this made the big guys' eyes lit up.

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

That's right, more than twenty units.

All are machining centers, not basic CNC machine tools like CNC cars.

"Domestic?"

When Long Yaohua sees the equipment now, the first thing he wants is to ask if it is domestically produced.

He kept asking, but no one laughed at him.

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

"The three-axis one is, but the accuracy is not good and the processing efficiency is low. We use it for rough processing. The only thing that is really used for fine processing is the two 4-axis in the workshop next to it. The leader, should you go in and take a look? You can go static electricity and change clothes next to it..." Liao Dongfeng showed off his face.

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

Imported!

Very strong technical performance!

"That batch do you guys do?" Long Yaohua shook his head. It's better not to watch this thing, and it's annoying to see it.

The four-axis system, the third and fifth machines both attach great importance to it. The country even included CNC technology in the 863 key technology. Even though the Hongqi Machinery Factory of 404 has already developed a four-axis system, CNC machine tools can solve it from time to time with CNC systems.

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

At this moment, he was still worried that Long wanted Hua to continue to settle the score with him.

"If you have such an opportunity in the future, you will do more. There are many units in our country who need this thing." Long Yaohua said.

Xie Kai nodded. If you can get it, you must get it. I don’t know how it is going on in Singapore. I went to sell oil a while ago and didn’t have time to talk to Makino’s people.

Gao Gang Zhengsan had agreed to bring a group of technicians to China to build a factory, but I don’t know if the guy really planned that way.

There is no secret of this matter, and Xie Kai cannot tell me about it.

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

Later, I looked at the assembly workshop. The working environment inside was no longer the same as the original scattered feeling. Every job has a special tool cabinet, material cabinet, parts and tools, which were arranged neatly and orderly. Long Yaohua and the others were comforted, nodding, and their smiles appeared on their faces.

Even the best way to see the turbofan-6 experimental prototype that was still in the test workshop, with blazing white flames spewing out from the rear and making a roar, was no longer as dissatisfied as before.

"Chief, now everything is ready. The east wind has been there before. This time I went back, I went to find Minister Chen and asked him to help lead the research work..." Xie Kai made a request when Long Yaohua and his friends inspected and were in a good mood.

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Chapter completed!