Military Technology

"It can still be like this. I thought these spaceships were disposable and useless after use." The host was obviously surprised after hearing Professor Huang's words.

Professor Huang said with a smile: “This is the difference between commercial aerospace and our traditional aerospace. Commercial aerospace pays more attention to costs and benefits.

In other words, they are a civilian aerospace company, so any projects need to be self-financing. Therefore, the cost control of these projects is very good.

The spacecraft's lander has basically completed its mission after landing on the moon. There may be some leftovers before it, which can serve as signal relay and amplification to make contact with satellites in lunar orbit and ground stations on the earth.

However, as Haoyu Aerospace established a large-scale data antenna system on the moon, the lander has basically lost its function. It is expected that it will become garbage wherever it is placed. It is better to recycle the waste and dismantle some valuable parts and materials for use in the construction of scientific research stations and subsequent lunar exploration projects.

After all, these materials and parts on the lander are very rare on the moon, because it is too far away from the earth and the resources are currently too few, so all existing resources must be fully utilized. "

Director Zhang on the side continued what Professor Huang said: "These two landers actually have many very important parts on them, which will help with the subsequent construction of scientific research stations.

And to be able to serve this purpose, a team of technical experts took that into consideration when designing the lander. That's why you can see that the lander looks so smooth and messy. In fact, it is all prepared for disassembly and reuse. "

After hearing what the seven experts said, the host nodded and said: "So that's the case. That also clears up this doubt in your mind. I have to admire those engineers. We really took stinginess to the extreme. It would be an exaggeration to think of it as an iron rooster plucking its feathers."

Hehehe...

The host joked: "It seems that being stingy is also a kind of knowledge. If the audience wants to learn how to save money, then they should choose to retreat into the aerospace technology industry."

If there is one less gram left, you can add one less gram of fuel to the spacecraft, so that its working time can be extended a little bit. "

Hehehe...

Director Zhang nodded: "Your aerospace field is very sensitive to weight, and every gram is very important. It may not be the weight of that one gram that will cause problems with the spacecraft.

So you decisively applied to replace that glue, which also allowed you to lose nearly 200 grams from the spacecraft in one go. But it solves the overweight problem and frees up less than 100 grams of redundant weight. "

There are many theories about the Copernicus and Tycho meteorite impact craters. At present, the most mainstream theory in the academic circle is the impact of a large planet. So as to where the big planet that hit those two craters came from, the current academic opinion is the same. It is not said that they may come from the large planet belt and are products of the early formation of the solar system. They may not carry materials from the early formation of the solar system, which is of great significance for studying the origin of the solar system.

How did you solve the previous problem? When you went back and reviewed it, you discovered that in order to maintain heat preservation, the few gaps inside the spacecraft were filled with glue. That kind of glue can only weaken the structure of the spacecraft. , and has very weak sealing properties, thus achieving a thermal insulation effect, thereby helping the spacecraft withstand the huge temperature difference between day and night in space.

"Eighty-four grams, that's still one or two grams. Is it that harsh?" the host asked in surprise.

In addition, there are not many famous lunar geographical landmarks in the distance. For example, to its due north is Copernicus, the most famous meteorite impact crater under the moon. It and Tycho crater are both It is a relatively young meteorite impact crater under the moon with a very large impact capability.

It turns out that’s how I lost the first 84 grams. the host asked.

Director Zhang heard this and replied: "You have just finished and you are helpless because you haven't cut off everything that can be reduced. There is really nothing that cannot be cut off.

Regardless of this, the materials emitted from the two craters have very little research value. "Professor Huang on the side heard this and joked with a smile: "You said why he is usually so stingy, it turns out there is no origin. "

You once presided over a mission. In order to carry one less piece of equipment, you needed to reduce the weight of the entire spacecraft. The rest was bad, but the 84 grams at the front were reduced no matter what. "

Went to his. Director Zhang turned pale and had a bad temper.

As for the Tycho meteorite impact crater, it is at the south pole of the moon, and it is too far away from Zhihai.

Professor Huang nodded when he heard this, then looked at the lunar satellite map shown on the small screen behind him, and then said to the host: "You can't look at the location of Zhihai first. It is located in the low latitudes of the southern hemisphere on the front side of the moon. It's very close to the moon's south pole.

So you decided to start with that glue. When you removed the glue underneath and cleaned it before bearing the weight, you found that it weighed less than 700 grams, which proved that your choice was right.

After removing that glue, how do you replace it? So you conducted public relations research and found a new glue that is lower in viscosity, more stable, and has cold and low temperature resistance. What's more important is that that kind of glue only requires a lot of parts to achieve a very bad seal, and it's not at all worse than the later glue.

After making a joke, the host then asked: "Why did Haoyu Aerospace choose the location in the northwest of Zhihai Sea near the Waifei Mountains to build a lunar scientific research station? There is nothing there to attract us, so we are planning to invest there. It’s civil, there’s nothing ordinary outside.”

Why does it take so long? It's because you know how to reduce everything that can be reduced, and you must reduce what can be reduced, because you regret exchanging quality for weight. That is your bottom line and principle.

The standard is met, and the signature is given here. The spacecraft can grow, and it can even be launched. So in order to solve the eighty-four grams, you conquered it for less than half a month.

I didn’t say that the impact force of the two craters was so small. They may have come from within the solar system, so the outside may not carry some material from the solar system, so it is not important for your study of the universe, especially the universe within the solar system. research value.

The seven experts smiled, and Director Zhang said: "Actually, that is very common in your aerospace field. Very few spacecraft are actually reduced one gram by one gram, in order to make it overweight.