Others are powerless to complain about Liu Yijiu's thoughts.

How long has it been?

Now, even launching a satellite system has countless difficulties. Before the astronauts can be sent to the sky, they have begun to plan to build a huge base on the moon and create a universe and land on Mars.

"Okay, let's talk about the follow-up plan later. Let's consider the reality in front of us and the future development direction. Let's first solve the technology." Mr. Qian sighed. Thinking about these things now is a bit too ambitious.

The most important thing at the moment is to consider the present moment and take the first step first.

If you can't send the manned spacecraft to the sky and then recycle it, everything will be useless, and the subsequent things cannot be said.

"Indeed, things in the future may be twenty, thirty, or even fifty years. Our current goal is to consider the current situation, develop rapidly, and strive to send our astronauts to space within ten years!"

Ten years later, this task is not very difficult.

"It's not a big problem to send astronauts to heaven for ten years. After all, many of the technologies we need in the first step have been verified. What we need now is to integrate all projects into the entire system..." Sun Jiadong was burdened with China's lunar exploration project in his original history.

The head of the first artificial satellite in China.

Liu Yijiu has not yet said who will be the chief engineer of this project, but he himself hopes to be the one.

"It is true. The personnel arrangement should be structured first so that it can be more efficient. The personnel appointments should be done before this, and then relevant personnel will be responsible for the coordination of various projects. Only in this way can we start work faster... Comrade Xiao Liu, before this, you have had in-depth considerations. Tell me your opinion on the matter of the project leader." Mr. Qian handed the decision to Liu Yijiu.

The project is not a national project. Liu Yijiu's Ninth Hospital pays money and technology, and aerospace mainly produces people. In this regard, the aerospace project group is the benefit.

Only the managers who make Liu Yijiu believe will not doubt the project and will not form constraints in future work.

When Liu Yijiu saw that everyone was devoted to himself, he also knew that the project chief was really important.

All the aerospace masters hope to be the chief engineer. Only in this way can their ideas become reality.

Mr. Qian has no time to manage these things, and he is not very familiar with the design work of satellites and the universe, so Liu Yijiu has been considering the candidates for a long time.

After thinking about it, he finally decided to let Sun Jiadong, the chief engineer of Chinese lunar exploration, complete his original work.

"I think it is more appropriate for Sun Jiadong and Sun Laolai to take charge of this matter. From the beginning of the first satellite design in China to the present, he is responsible for many projects, and even our Beidou satellite system has participated in it..." Liu Yijiu's proposal was not opposed.

Sun Jiadong really didn't expect that Liu Yijiu would propose to let him serve as chief engineer.

After all, the person in charge of the Beidou system is Chen Fangyun.

"Of course, although this project has many similarities and many technologies are shared by our Beidou project, the two projects cannot be merged together. Mr. Chen still has to continue to be responsible for the work of the Beidou satellite system..."

Liu Yijiu will naturally not cause internal conflicts.

These two projects can actually be integrated into one project, and of course they can be regarded as two projects. When the country does not have a clear goal to implement this plan, they need to seriously consider the focus of their investment.

"In addition, since we are going to develop in the direction of establishing space stations, the carrying capacity of the Long March 3B rocket is obviously not enough in terms of launch vehicles. It is best to design a GTO with a capacity of more than five tons..." Since Liu Yijiu said that he would serve as the chief engineer of this project, Sun Jiadong immediately put forward his own ideas.

The Long March 3B rocket has no problem carrying the Beidou satellite, but it is obviously not enough if it wants to carry out manned space engineering.

Only when the greater the thrust is, more materials can be transported.

If the return capsule is too small and just sending people to heaven and cannot even move, it will not make much sense.

"This is not necessary in the early stage. In the early stage, it can even meet the needs of Long March 3 for verification of technology and design feasibility." Liu Yijiu shook his head, "We cannot wait until we have such a rocket before we conduct experiments."

Time is very tight and the task is heavy.

"Considering the various supporting facilities required by the return capsule, putting aside the weight of fairings, escape towers, etc., with the transport capability of the Long March 3B rocket, the weight of our return capsule will not exceed one ton..." Although a ton is too much, putting aside the weight of astronauts and their health systems, the weight on the entire spacecraft will have to be reduced, which will affect the design of the entire spacecraft.

"According to the current situation, the weight of the insulation material will occupy a large amount of weight. Otherwise, the maintenance system inside the return capsule will not be guaranteed during launch. When the gravity acceleration is applied during return, there will also be problems when returning..."

Sun Jiadong obviously considered this issue before.

The rocket's thrust is too small, so the requirements for the return capsule are too high.

All the equipment inside must be miniaturized and the power must be enhanced.

China does not have heavy rockets with a thrust of thousands of tons like Soviet Energy and Saturn V in the United States, and it cannot send hundreds of tons of loads to orbits in low-Earth orbit or even higher.

Whether Saturn V exists is an unknown number. After all, what the Americans boasted about was that they launched Saturn V 13 times, and six of them sent Apollo to the moon...

The Republic does not have too many space engineering projects, and the number of satellites launched is also very small, and there are not many launch vehicles.

Not to mention sending larger payloads to space orbit.

"This really needs to be considered. But for the moment, we can only find ways to solve it based on Long March 3B..." As for such a thing, Mr. Qian also believes that the Rockets problem must be effectively solved.

"With the improvement of our Beidou satellite, the next generation of satellites will require greater thrust. In order to ensure communication quality and greater functions, the satellite will be designed larger. It is very likely that when launching the next generation of regional passive positioning satellites, the weight required may exceed the current Long March 3B payload..." Chen Fangyun suddenly spoke.

The greater the function of a satellite, the more systems it needs to ensure.

And the more systems, the larger the size and the greater the weight.

As long as satellites continue to develop, the design of new rockets must continue to move forward.

In terms of aerospace, satellites and rockets are inseparable.

Unless a rocket with a larger load capacity has a stronger carrying capacity, or like the United States and the Soviet Union, the rocket's designs are serialized and universalized, and combined according to different tasks.

In fact, this is modular design.

"What if a set of boosters were added to Long March 3?" Liu Yijiu was silent.

Rockets without large carrying capacity are all problems.

It is difficult to realize the design of Long March 5 at present, and there is not enough technical accumulation. Only by adding boosters based on the Long March 3 Type B.

This should be able to achieve the GTO capability of the Long March 3B modified version, and the payload can reach or even exceed 5,100 kg.

In this way, the usage requirements can be met in a short time.

"We are currently working on the preparations for research." Mr. Qian nodded, but still hoped that Liu Yijiu could provide his ideas. "As for how to add, please tell me?"

Sometimes, many designs require an idea to guide them.

Liu Yijiu looked at Mr. Qian and was speechless. Why did he have to do this by himself?

However, he was not shy. After all, the improved version of Changsha B is the basis of domestic rocket series. He immediately said, "In this regard, I personally think so. Taking the current Long March 3B as the core stage, adding the booster of the Long March 2 bundled rocket to the first stage of the Rocket. In this way, the reliability will be higher than that of the Long Second Bundle... At the same time, strengthen the design of fairings, etc., so that the booster can be increased or decreased according to the situation of the mission, that is, start a modular design... Otherwise, we might as well use the Long Second Bundle..."

The long second bundle has very strong low-Earth orbit capacity, close to ten tons.

However, the current Long Er bundle is not suitable for the mission requirements of Beidou satellite system and manned space flight projects. The only thing is that the Long Er bundle is designed and manufactured specifically for satellites!

"And, we need to have the technical ability to have more than one shot!" Liu Yijiu said gritting his teeth.

This made Mr. Qian and others frown.

One shot and one shot, which is the same as the multi-warhead technology of strategic missiles. At present, domestic research work in this area has not been greatly developed.

"Military projects are not much different from civilian projects. If our plug-in engine and refueling engine technology are made breakthroughs, we can fully verify technology with our civil rockets, so that the experimental funds can be completely reduced..." Liu Yijiu said.
Chapter completed!