Military Technology

“Even ordinary fairings cost over one million, with the lowest ones costing hundreds of thousands.

If the fairing can be recycled, this means that such a cost can be saved. Based on the average use of each half fairing ten times, the cost amortized to each launch is very low, only one-tenth, and the money saved ten times is also a very considerable number. "

Director Zhang nodded and said: "Currently, there are only a handful of companies that can master fairing recycling and reuse technology. Compared with other companies and countries, Haoyu Aerospace's fairing recycling technology is more reliable and cheaper. It can be said that it is Representative of fairing recycling technology.”

After talking about this, Director Zhang pointed to the second part of the rocket model and said: "This is the core second-stage part of the rocket, commonly known as the second-stage rocket. This is also the only part of the Jianmu-9 heavy rocket that cannot be recycled.

We can see that the second-stage rocket is very short, about half as long as the first-stage rocket, but it is very important. It will relay the first-stage rocket to transport the spacecraft payload to the Earth-Moon transfer orbit.

Because it has to leave the atmosphere, its recovery is very difficult, which is equivalent to the difficulty of our manned spacecraft returning to the atmosphere and landing. Moreover, the cost of recycling is also very high, so recycling is generally not done.

Moreover, the second-stage rocket accounts for a relatively small proportion of the overall cost of the rocket, only about 20%, which is a relatively low proportion, so the recycling value is relatively low.

Of course, in recent years, aerospace agencies and aerospace companies have begun to develop recycling and reuse technology for the seventh-stage part of the rocket. As far as you know, Haoyu Aerospace is also a leader in that field.

So far, we have not yet and successfully recovered the seven-stage rocket part, and the experiment was a complete success. "

After talking about that part slowly, Director Zhang pointed to the top part of the model: "That's not the core first stage of the rocket and the two boosters. You can't see the core first stage of the rocket and the two boosters. The thickness and length are actually the same.

Hahaha……

The disadvantage of that design is not a small cost savings. Like that time, the core first-stage rocket and two boosters under the Jianmu-4 heavy-lift launch vehicle were actually used n-hand goods. From that aspect , which does not increase the launch cost of the rocket very much.

That's the rocket part. Director Zhang put the rocket model aside, then picked up the lunar cargo spacecraft system model he was visiting next to him, and introduced it to everyone.

And it’s also very important. The lander was designed that way so that it could be easily disassembled. "

So you will see that it is very messy and smooth, but in reality it reduces the necessary weight underneath the spacecraft very little, thereby minimizing the need to load cargo. In the view of the technical engineers of Haoyu Aerospace, appearance is not important, but performance and reliability are important. "

The one above is not the orbital service module of the spacecraft. It provides power for the entire lunar cargo spacecraft, including orbit correction during the earth-moon transfer phase, braking and orbit changes when retreating to the lunar orbit, etc.

For example, I can't see where the lander's engine nozzle is. Why it should be placed in that position is irrelevant. It's not to prevent the tail flame or low temperature from the engine from affecting the lander itself.

That’s because regardless of whether it is the core first-stage rocket or the two boosters, they are actually the core first-stage rocket of the Jianmu-1 rocket. In other words, the Jianmu-4 heavy-lift launch vehicle is not actually a variant of the Jianmu-1 rocket or Talk about the weakened model.

Through modular design, Haoyu Aerospace cannot allow those modules to be combined together to form a new rocket.

Professor Huang nodded: "Yes, those landers are useless before they land on the moon, and they can be wasted. So the engineers of Haoyu Aerospace designed it this way, mainly to facilitate the early dismantling of the landers. , so as to make full use of the materials and parts under the lander for the construction of the subsequent lunar scientific research station, as well as for the maintenance and replacement of some equipment parts." You must also see that in order to be able to carry the minimum amount of cargo , the entire lander is designed to be very small, with the cargo bin placed in the middle, and around the cargo bin is the entire landing system, including attitude engines, landing engines, etc., which will provide sufficient power for the lander during the landing process. This slows down the lander in its retrograde motion, preventing it from safely landing on the moon.

Let’s talk about the lander at the back first. It is the most important part of the entire lunar cargo spacecraft system. It is not only the lander for the spacecraft to land on the moon, but also the core of the entire cargo spacecraft, and it is not the cargo warehouse.

Dismantle? The host explained.

But in reality, it is a very bad practical design. It is very similar to the style of Haoyu Technology, which is not the parent company of Haoyu Aerospace. In other words, it is a lineage inheritance. At the same time, we must insist on practicality as the dominant factor.

Professor Huang on the side laughed and said, "Actually, you all want to see it. Its inner shape looks smooth, messy, and ugly, but in reality, the design is very surprising and elegant. Every design has been fully considered. .

The difference from conventional rockets is that you also need to see the position above the core first stage rocket and the two boosters. That is not the rocket landing frame, but it is in a downward folding state. When it lands, When the time comes, it will open up and then retreat forward and land.

That also made the launch not a highlight. It’s not that you can’t see the spectacular sight of the core first-stage rocket and the two boosters rising and falling at the same time. "

After listening to Director Zhang's introduction, the host immediately asked a question that I was curious about before nodding: "Director Zhang, why is the lander of the spacecraft designed so...smooth, as if it is not finished yet. "

Director Zhang said with a smile: "The question he asked was very bad. In fact, few of you felt that way when you saw the lunar cargo spacecraft. It just felt like it was not finished. Why was it everywhere? It's the cables, the engine nozzle, everything is messy, and it feels ugly.

At the same time, you can see that there are two solar system battery sails on both sides of the orbital service module, which will also provide power supply for the entire lunar cargo spacecraft system during flight. "

Director Zhang and Professor Huang laughed after hearing the host's words.

"You can't see the lunar cargo spacecraft system model of Haoyu Aerospace. It is actually very similar to a special detector. It is mainly divided into two parts, the lower part and the rear part of the spacecraft. The lander, and the orbital module above, which is not the front end of the spacecraft.