"Jointly, we're in trouble."

In the "full moon", which is not too big, four astronauts are busy pinching their noses with simple masks:

They are trying to figure out how to brush off the moon dust in the cabin.

Friends who often go to the moon know that landing on the moon is easy and dusty.

Moon dust is rich in static electricity because of its high metal content, which is easy to adsorb on objects and is an important factor that damages the life of the detector.

It is also harmful to astronauts, these particles can easily enter the human body, inhaling too much can also cause lung disease and functional impairment, and it is not less corrosive to spacesuits.

The spacesuits used on the International Space Station can be used for many years if they are well maintained, but the spacesuits recovered during the Apollo 11 mission were directly judged to have lost their use value, and their surfaces were seriously damaged.

Of course, NACA at that time had considered this problem before landing, and thought of a way to use a small brush to brush off the moon dust as much as possible before entering the cabin.

The treatment measures of the Dawning mission are similar, except that the magnetic adsorption and electrostatic adsorption functions are added.

However, during several missions, there was more moon dust attached than expected, and it was not cleaned up carefully in order to rescue Artemis.

And Victor and Koch are even more disastrous, their spacesuits are almost covered with moon dust, and none of the brushes can be cleaned, so they have to enter the cabin first.

The astronauts, who had slept for a while, woke up and found that the cabin was already full of moon dust, so they all pouted and began to clean up a little:

If you don't clean it up, you can't do it, and if these little things enter the circuit and affect something, it will be a big problem, and the first wave of astronauts who returned to the moon will be wiped out directly.

The small space is not spacious for four people, but there is nothing good to do on the ground for the time being.

In fact, the best measure is to add a transition cabin at the exit, in which the astronauts are sprayed with cleaning liquid, and then use an electrostatic generator to slowly suck up the moon dust, and then take off the spacesuit and enter the living module.

But apparently the "full moon" really does not have so much space to arrange, only the future permanent base has this function, and now ...... Make do with it.

In fact, the environment in the lander is not just because there are two more people squeezed, and there are many troubles:

First of all, the consumption of food and water has directly doubled, and the original abundant storage is now just enough;

The oxygen supply is okay, and the remaining fuel supply from the lander can be used, which is not a big problem;

The biggest trouble is going to the toilet, and while all four astronauts can tolerate the smell with a commode, it's not the same with an extra woman.

When Koch awkwardly said that he couldn't help himself and that they couldn't get out of the cabin to hide, the three big men could only whisper to the wall, even though Koch said he didn't care.

The journey to the moon, which was full of novelty and adventure, has lost its appeal, and the four astronauts are all thinking about going to space early.

In particular, Koch and Victor are particularly interested in the "Black Rabbit", whose living cabin has a mass of up to 50 tons, and you know that it is more comfortable than the "Portal".

Although it is not possible to solve some of the problems they encounter for the time being, these have been faithfully recorded by the ground and will definitely be taken into account when improving in the future.

……

"The reusable lander we designed must have this transition module, otherwise it will be too harmful for the astronauts.

Just like the workers in the mining plant and the fiberglass production line in the past, the harm of moon dust is more serious than this. ”

After Lin Ju learned about the problems encountered by Shuguang-3, he first went to check whether this was taken into account in his lunar development plan.

After all, the reusable lander determined in the joint research with the Fifth Academy is actually similar to the "Blue Moon" configuration, weighing about 40 tons, although it is larger, but it is still a little troublesome to set up a transition cabin.

Guo Shen, who is responsible for docking with that side and the design of the lander, is now mostly leading subsystem design projects, and is in Qiongzhou with Lin Ju.

He took out the sketch plan of the lander designed by Xinyuan, pointed to its unique round hatch and said:

"At the moment, I intend to use the space agency's proposal to use the folding airlock module, which is the technology used by the alliance in the Ascent 2 exit walk.

The airlock cabin is a flexible inflatable inflatable design, which is inflated and expanded after landing, playing a transitional role. ”

The advantage of the flexible airlock cabin is that the launch is small in size and light weight, and it does not need to occupy much space in the first place, which is very easy to achieve for small landers.

But when Lin Ju saw this thing, he immediately thought of the scene in "The Martian" starring Matt Damon, where the airlock cabin of the camp where he lived was blown into the sky, and it is still a flexible design...... It doesn't seem to be very reliable.

Guo Shen explained: "The flexible module technology has been applied for a long time, and now all countries are developing this new technology, although it seems unreliable, but with the development of the technology will soon mature." ”

"But the place we require to work is the moon surface, and we also need it to be frequently expanded, such working conditions are very harsh, and the moon dust particles will constantly wear down the inflatable outer wall."

"This ......" Guo Shen is also a little embarrassed, the current reusable lander design is actually a copy of the MTV cargo spacecraft used to transport fuel, and the transformation potential itself is relatively limited, if the airlock cabin is designed into the spacecraft, the available space will be greatly compressed, which is a bit more than worth the loss.

"Then we may be able to make the airlock module into a ground part, put wheels on it and turn it into a lunar rover, and the lander will dock and use it after landing, although it is a little troublesome but the risk is much smaller."

This suggestion is a bit tricky, but Lin Ju also has to admit that it is indeed very effective and is a way.

Of course, it is possible to redevelop large ones, but the reproducible lander is required to be put into use this year, and it is cost-saving and easy to maintain with the same configuration as the cargo MTV, which is not so easy to change.

If only there was an atmosphere on the moon, the shuttle would be able to land directly, and most of the ...... Something flashed through Lin Ju's mind, he thought hard for a long time, and finally thought of a lander being developed by the base: XN-90.

Of course, the body of the XN90 is no problem, it can reach a take-off mass of 300 tons when used on the moon, and the huge volume of 72 x 44 meters is also a small matter to stuff an airlock cabin.

Of course, the XN90 cannot be counted on now, but ...... If you don't need to take off from the ground, you don't need to wait for NPAE.

Anyway, when the lunar surface completes fuel self-sufficiency, it will be enough to replace it with a hydrogen-oxygen or methane engine with small thrust, and the biggest technical obstacle will be overcome.

Body...... The prototype of the XN90 seems to have entered the construction process? It shouldn't be a big problem to change this progress to a regular power lander, right?

Look at the teeth and pull it a little

(End of chapter)