A big country of aerospace with black technology

Now that he has boasted to Chen Zhongyan, he said that he will complete the test of the recoverable rocket next year.

Then after returning to the Rocket Research Institute, Zhang Xingyang did not dare to delay for a moment, and seized the time to start the design of the new rocket.

In fact, part of the technical content of the new recyclable rocket has been discussed in the research institute before.

For example, compared with the three-stage structure popular among various countries, the rocket adopts a more special secondary structure.

In other words, it is equivalent to canceling the original second stage, and the first stage rocket is the top stage with the fairing on it.

The first-stage rocket uses 11 YF-110 liquid oxygen kerosene engines newly developed by the Rocket Research Institute, which can provide a thrust close to 1,250 tons, which can be called monster-level power.

In contrast, the first long triple-B rocket launched at the beginning of this year had a take-off thrust of only 604 tons.

The thrust of the newly developed rocket is almost twice that of it, and in terms of price, if the factor of reuse is considered, the newly developed rocket is even cheaper.

"The control system after eleven YF-110 engines are connected in series will be several orders of magnitude more complex than the rocket configuration scheme we used before."

Zhang Xingyang looked at Qin Ming, the person in charge of the control system in the conference room, and said very seriously:

"This puts higher demands on your control system and attitude perception system."

"Qin Ming, are you confident to do well?"

As the current head of the control system of the Rocket Research Institute, it is impossible to say that there is no pressure on this matter.

But Qin Ming, as a vigorous young man, didn't take difficulties so seriously.

"Dean, I and my colleagues in the entire department have confidence!"

Faced with Qin Ming's statement, Zhang Xingyang remained unmoved.

Now he has not started to get in touch with many technical difficulties in the new rocket, and he can still maintain a relatively optimistic attitude.

If he encountered many technical difficulties during the rocket's research and development process, he might not be so optimistic. If he doesn't hit the wall by then, he will be in a good state of mind.

Recyclable rockets are actually very technically difficult in this era. After all, the electronics industry at this time is not as developed as it will be in later generations.

Especially in terms of supercomputers, they are being crushed crazily, and without supercomputers, it is difficult to carry out various simulation experiments before actual measurements.

But Zhang Xingyang is not very worried, after all, all kinds of mature rocket design schemes in his mind are almost ready-made.

Although Zhang Xingyang will not directly give all the technical and engineering solutions to everyone in the research institute, he will still control the progress of the entire project and ensure that the preliminary test of the entire rocket will be completed within next year.

After all, Zhang Xingyang is not a superman, and he doesn't have so much time and energy to solve all the problems. This requires everyone in the Rocket Research Institute to grow up as soon as possible, so that he can become his right-hand man who can truly assist him.

"Qin Ming, it's good to have confidence. You may face many difficulties in the future. Your entire department must be mentally prepared."

Although he didn't really want to discourage Qin Ming's enthusiasm, Zhang Xingyang still reminded him that the follow-up research and development work might be more difficult than he imagined.

Of course, the early new rockets do not consider the recovery function, and there is no such complicated attitude control system for the time being.

After all, to recover the rocket, after the first-level rocket is separated from the second-level rocket, the engine needs to be restarted to allow the first-level rocket to fly back to the recovery site or the position of the recovery ship at sea.

In this process, the requirements for the control of the rocket are still very high, which is still a bit ahead of the scientific research capabilities at this time.

"Geng Bo, is there any problem with the design of the rocket structure?"

After asking Qin Ming who was in charge of the control system, Zhang Xingyang turned around and asked Geng Bo who was in charge of the entire rocket structure.

This time, the two-stage rocket structure is adopted, which is less used in rockets now. The research institute has no technical accumulation in this area, and can only rely on a little technical hint given by Zhang Xingyang to explore.

Even so, the progress of the structural design team led by Geng Bo is still very difficult.

"Although the structure of the two-stage rocket is simpler than the three-stage rocket we often use now, we have not had much contact with this aspect before."

Geng Bo frowned and said with the latest achievement of the structural design team:

"The second-stage rocket only uses the load fairing, the interstage, the second-stage rocket, and the first-stage rocket. However, due to different structural problems, there are some difficulties in the separation of the first and second stages and the separation of the fairing."

The most difficult part here is actually the two aspects of the load fairing and the inter-stage connection.

The two aspects of the first-stage rocket and the second-stage rocket are actually relatively simple.

"The load fairing must be done well. After all, the thrust of the rocket we developed this time is twice that of the previous one, and its load weight is almost twice that of the previous one, which means that the loading method of the load must be more complex reliable."

Regarding Geng Bo's proposal, Zhang Xingyang simply replied:

"As for the separation between the two stages, we can use the explosive naked pair to connect, and use the pneumatic separation method to achieve the separation between the first stage and the second stage with the help of atmospheric resistance and airflow."

This technology is actually not a complicated technology. The key is that Geng Bo and the others have not independently designed a new rocket configuration before.

After all, the previous Changsanyi was also improved by bundling the Changsan rocket with four huge booster rockets.

Geng Bo wanted to continue asking technical questions about rocket design, but was stopped by Zhang Xingyang:

"If there is any technical problem, we will talk about it at the next rocket structure design seminar."

"Now I just ask you, are you sure you can complete the structural design of the rocket before next February?!"

It is already the end of the month, and if the structural design work is to be completed within February next year, it means that Geng Bo only has about four months and 120 days.

This is a very tight schedule for the design work of a new type of rocket.

However, Geng Bo was also very clear about Zhang Xingyang's character and would not send out any impossible missions, so he nodded:

"As long as the courtyard needs it, no matter how tight the time is, we will complete it!"

After getting Geng Bo's affirmative answer, Zhang Xingyang glanced at the dozens of persons in charge of various rocket R\u0026D subsystems sitting in the meeting room, and said passionately:

"Everyone, this job is related to the future of each of us, and I hope you can take it as your most important job at present!"

This is not an exaggeration at all. This rocket is related to the establishment of the entire low-orbit satellite communication network. It involves the construction of the entire domestic Internet. At least trillions of investment are involved, and it is related to everyone around us. everyone.

If it succeeds, it means that Longguo has obtained an extremely important opportunity in the future competition!