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Of course, due to the many functions of this satellite, there are many scientific research and verification projects to be carried out, so the weight of this satellite is naturally quite a lot. The weight of this satellite has reached as much as 12 tons. Except for the similar No. 5 rocket that has already been manufactured, there is no rocket that can send this satellite into the Earth-Moon transfer orbit. Even the current Tiangong-4 rocket cannot send such a heavy satellite into the orbit. Earth-Moon transfer orbit.

Although the total weight of the Tiangong-4 rocket has reached 800 tons, which is almost the same as the official largest rocket, but because the Tiangong-4 rocket of Tiangong Technology is a recyclable Type rocket, so its carrying capacity is much lower than that of the same type of rocket, so it cannot undertake this launch mission at all.

Fortunately, now their Tiangong-5 rocket has been manufactured, and it can also send this satellite into the Earth-Moon transfer orbit.

Of course, like the Tiangong-4 rocket, the Tiangong-5 rocket is also a recoverable rocket, but unlike the previous recoverable rockets, the last stage of the Tiangong-5 rocket uses It is not a traditional liquid hydrogen and liquid oxygen rocket engine, but a 100-kilonewton atomic engine newly developed by Tiangong Technology.

After all, the atomic engine does not need liquid oxygen for combustion, as long as there is liquid fuel, this makes Tiangong Technology very optimistic about this engine, and at the same time, it is also very optimistic about the future of this engine .

In fact, this atomic engine technology is also the technology that Wang Bin purchased from the technology mall, and its technology prototype is Kanxing's "sub-neural" atomic rocket engine.

And the prototype of this engine, that is, the thrust of the "sub-neural" atomic rocket engine, is only 60 kN. After the improvement and development of Tiangong technology research and development personnel, this 100 kN atomic rocket engine was developed.

Like the previous prototype "sub-neural" atomic rocket engine, the weight of this atomic engine is much heavier than that of ordinary liquid hydrogen and liquid oxygen engines. Not to mention other things, let's just say that it is developed by Tiangong Technology. The thrust of this atomic rocket engine is only about 100 kN, which is 10 tons, but its dead weight has reached nearly five tons, which is definitely several times that of other rocket engines with the same thrust.

However, its specific impulse is much larger than that of a liquid hydrogen and liquid oxygen engine, and it is far from being comparable to a liquid hydrogen and liquid oxygen engine. Therefore, this will enable this stage of the rocket to store more fuel and enable the rocket to Heavier objects are sent to higher orbits, and this stage can also be recovered.

This level of rocket must have enough fuel to return after sending the satellite into the earth-moon transfer orbit, but if ordinary rocket engines are used, that is, liquid hydrogen and liquid oxygen rocket engines, etc., it must carry More fuel is required. After all, the spacecraft needs to be put into the Earth-Moon transfer orbit.

Then the speed must reach at least 11 kilometers per second.

But when the satellite is put into the rocket and needs to return, at this time the rocket must reduce the speed again, and at this time, the rocket engine is needed to complete it. If a liquid hydrogen and liquid oxygen engine is used, it must carry a large amount of Fuel, in this way, the carrying capacity of the rocket will be greatly reduced, and it can only reach a carrying capacity of less than 10 tons. This is definitely not the structure that Tiangong Technology wants to see.

If this is the case, then Wang Bin and the others might as well not recycle the last stage rocket!

Fortunately, with the atomic rocket engine, since liquid oxygen is not needed as an oxidant, although the engine is heavy, the overall weight of the last stage can be reduced to a level that Tiangong Technology can bear.

It can be said that the Tiangong-5 rocket uses many new technologies of Tiangong Technology. At the same time, the satellite launched this time is a collection of many key advanced technologies of Tiangong Technology.

So this satellite took Wang Bin and his team more than a whole month to design and manufacture. At that time, the No. 5 rocket was not launched.

However, with the completion of the satellite manufacturing, the launch of the rocket has also been put on the agenda.

Of course, regarding Tiangong Technology's upcoming launch of a lunar exploration communication satellite, Wang Bin's Tiangong Technology has also reported to their superiors, and they have also obtained their approval.

And when the higher-level department receives the application report submitted by Tiangong Technology, it also attaches great importance to it. At the same time, it also attaches great importance to the latest technologies such as Tiangong Technology. After all, the technology used in this rocket and satellite , both of which are the world's top technology.

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Therefore, in order to improve national self-confidence, the government has also carried out large-scale publicity. After all, the lunar exploration satellite launched this time was not launched by the official space agency, but by a domestic private space company.

The most important thing is that the rockets and satellites launched this time are completely developed by Tiangong Technology itself, and are not officially provided with technology and support.

And in the propaganda, the official also clearly explained that this satellite uses the latest communication means developed by Tiangong Technology, and verifies its technical feasibility in ultra-long distance.

Therefore, when this news was officially announced, it aroused huge repercussions throughout the country and even the world.

After all, it was a domestic private aerospace company that launched the lunar satellite this time! Not an official space company.

You must know that even the most advanced private aerospace company in the world before, X Space Company, although it has many plans, including the moon program and so on.

But in fact, at this time, apart from launching their company's Starlink project and launching some earth satellites, their plans for lunar exploration and landing have not yet started. At this time, they are vigorously stepping up their company's interstellar spacecraft. Test flight and test improvement project.

But now, even before their company has manufactured the spacecraft, someone wants to start the moon program before them, how can this make them suffer.

So just as soon as the news that Tiangong Technology was about to launch a lunar satellite was officially disclosed, it attracted great attention from X Company, and its person in charge immediately announced that their company would also launch a lunar exploration satellite in the near future, and conduct research on the moon. The landforms are collected to lay the foundation for their company's upcoming lunar program.

At the same time, because of this official publicity, it caused heated discussions on the Internet.

After all, this matter is sensational. You must know that before this, although Tiangong Technology launched one or two rockets every month, and the rockets it launched were very successful, there was no An accident, the most important thing is that the company's rockets have been recovered very successfully every time. Therefore, in the eyes of many Chinese, Tiangong Technology's rocket technology has reached or exceeded the level of X company.