Although the core engine was completed, the assembly of the entire aero engine still took the project team a week.

This is not a very fast speed, after all, the entire prototype was actually completed two years ago.

This time, some of the parts in it were replaced.

In particular, the turbine disc and tail nozzle developed by the Rocket Research Institute were replaced.

Although the WS-10 engine is not huge, the cold and complex metallic sheen of the body can still make people feel its industrial beauty.

Everyone standing in front of it was impressed by its violent aesthetics.

Before the introduction of new materials from the Rocket Research Institute, the project team designed a thrust of 120KN for the WS-10 engine.

In fact, this thrust is far from reaching the limit of the core machine, and it is only because of the problems of materials and processing technology that the thrust has to be reduced again and again.

This time, the problem of some materials has been solved, and the thrust can also be raised.

In particular, the materials developed by the Rocket Research Institute have basically improved their high temperature resistance.

Increase the temperature of the engine's high-temperature gas by at least 20 percent, so that the thrust of the engine can reach the level of 130 KN.

In addition, after the tail nozzle is made of composite materials, the weight has dropped a lot, and the aircraft can carry more fuel, and the combat radius has been greatly increased.

Although the WS-10 is not an engine specially developed for the Su-27, the J-10 was originally a third-generation aircraft in the same vein as the Soviet-style fighter, and the adaptability of the two is still quite high.

It took Zhang Zhengjiang a lot of effort to install the WS-10 on the Su-27 for testing.

After all, the Su-27 at this time is still relatively rare in the country.

The first batch of 24 Su-27s cost $30 million each, although a combination of 35% foreign exchange and 65% merchandise was adopted.

But it's still very expensive.

Just this one, Zhang Zhengjiang finally begged his grandfather to sue his grandmother.

Of course, this is also a helpless thing, at present, there is no better test platform in China except for the Su-27.

Engineers with quick hands and feet were constantly busy at the tail of the plane, disassembling the AL-31F from the original plane.

"Lao Wang, can you finish it today?"

Zhang Zhengjiang stared at the exposed pipeline at the tail of the Su-27, and asked the engineer who was still flipping through the technical manuals full of Russian on the side.

In the thick tome of technical manuals, there are dense and various technical specifications, and only Wang Xu, who has been dealing with Lao Maozi, can read it.

But he can't guarantee when he'll be done.

Because the Su-27 has not been introduced into China for a long time, everyone does not know so much about this heavy fighter, which can be regarded as a top third-generation aircraft even if it is put into the world.

At this time, the F-22 of the Eagle Sauce family has not yet flown in a test flight, let alone officially installed in the troops, so the Su-27 is definitely one of the most advanced fighters at this point in time.

When Wang Xu was young, he once went to Mao Xiong's house as an exchange student to study aircraft maintenance, and worked in the Komsomolsk Aircraft Factory for a period of time.

Therefore, Wang Xu is absolutely familiar with the context of Soviet-style fighters.

But this is limited to some second-generation aircraft, and for the world's most advanced third-generation aircraft like the Su-27, it was only a few years ago that contacts began.

The structure of the Su-27 is not known as much as the previous fighters.

"Today is definitely not finished, today is just enough to dismantle the original AL-27F on the Su-31."

Wang Xu looked at the working engineers and answered Zhang Zhengjiang's question.

"Give us another week before we can expect to be able to put the new engine on it."

In fact, a week was the result of Wang Xu thinking about it, and everyone did not rest.

If you follow the normal engine replacement and overhaul process, it is normal to come for half a month.

In particular, the WS-10 engine is still an engine that everyone has not been exposed to before.

"It seems that it will not be in time for the National Day gift."

Zhang Zhengjiang muttered helplessly.

Originally, the project team did not have such an idea, but the efficiency and speed of the Rocket Research Institute gave Zhang Zhengjiang a small hope.

But now it seems that it is basically impossible to complete the test flight of the engine before the National Day.

But from an outsider's point of view, the development speed of the WS-10 project team during this period is simply amazing.

Especially Wang Xu, who has been dealing with the WS-10 project team before, knows that the progress of the project during this period is like riding a rocket forward.

Of course, it is not wrong to say that it is on a rocket, after all, the main business of the Rocket Research Institute is to make rockets.

"By the way, how did you do it, the speed of research and development during this period of time is so fast?"

Wang Xu finally couldn't help but ask.

As the country's most advanced combat engine research and development project team, the WS-10 project team is not really in the group, and it is still not particularly clear about the specific doorway inside.

Even Wang Xu, who had been dealing with engines before, was not very clear.

However, there is no need to keep this matter particularly secret, especially since Wang Xu is about to join the WS-10 project team, and it is nothing to reveal some news in advance.

"Thanks to the help of the Rocket Research Institute, they have recently made a lot of progress in material manufacturing and processing, and have launched a lot of core materials suitable for engines, which have solved our big problems."

Speaking of the reason, Zhang Zhengjiang was in good spirits.

On the contrary, Wang Xu was a little puzzled after listening to it, and his impression of the Rocket Research Institute was still at the beginning of the year.

At that time, the Rocket Research Institute had just failed to launch a rocket, and was facing serious problems such as personnel exodus and broken funds.

"Rocket Research Institute?"

Wang Xu frowned.

"Aren't they all dying?"

"Where does the money come from for development?"

In the face of Wang Xu's questioning, Zhang Zhengjiang was not surprised, after all, the situation here, in addition to the high-level, is generally only known to people inside the aerospace system.

It is normal for Wang Xu not to know this.

"The new president of the research institute has brought out several new materials, and used the material preparation process to revitalize a military factory that was originally going to close down."

Zhang Zhengjiang lit a cigarette and told Wang Xu about the drastic changes in the Rocket Research Institute in the past six months.

"Hey!"

"That factory was also lucky, and it grabbed a lot of orders to participate in the Canton Fair."

"The Rocket Research Institute also got a lot of money, and it didn't go up to them to get a rocket launch mission, and they got up again."

Zhang Zhengjiang took a deep puff of cigarette and said lightly.

After listening, Wang Xu didn't ask anything more.

It's almost enough to know so much, and it's better to not know the content in depth.