Military Technology

At this point, Yu Chengwu continued to change pictures and said: "To be honest, how to fix such a large and heavy gold meteorite core on the ascender is a difficult problem.

Because it will directly change the center of gravity of the entire ascender structure, causing the entire launch ascent process to fail.

Originally, its best fixing position should be at the top of the ascender. It only needs to be fixed for a long time to avoid the problem of center deviation, so as to smoothly ascend and dock with the orbiter on the orbit.

However, the top of the ascender is usually a docking port to facilitate docking with the orbiting spacecraft in orbit. But if it were placed on top, wouldn't the docking interface at the top be blocked? How could it be docked with the orbiter? "

"It won't work if you put it underneath, because the bottom of the ascender is the rocket nozzle, and such a large gold meteorite core cannot be placed. Otherwise, it will easily block the rocket engine nozzle and affect take-off.

As for the surrounding area, it is even worse, because this will seriously affect the center of gravity of the entire ascender. Even if the moon's gravity is very small, it will affect the stability of the ascender during the entire launch process, leading to failure of the ascent.

So it can only be placed above or below, so we need to modify the entire ascender so that it can meet our transportation needs.

After studying multiple options, we believe that the meteorite core must be placed under the ascender. As for the rocket engine, it is moved to the side. "

In the picture, you can see the structure of the entire ascender, which is basically similar to the structure of the lander of the lunar cargo transfer spacecraft. The rocket engine is not placed on the ground, but placed around seven weeks, like an outstretched arm.

In this way, a huge space is formed between the landing gears above the descender. As for that space, both good and bad beauty are used to fix the cube frame containing the golden meteorite star core, thus forming a whole.

Before reaching the Earth's orbit, the spacecraft assembly will gradually retreat to the landing orbit. First, the spacecraft will retreat and separate from the lander. The spacecraft's return capsule will take the lunar soil samples and land on the Earth according to the prescribed orbit.

You have set up very few holes under the landing gear. Those holes cannot correspond to the holes under the cube frame where you fixed the gold meteorite core, so you cannot use bolts to fix it backwards.

In addition, you have also installed several large rocket engines on the opposite side of the downer engine. Before docking, those rocket engines still cannot provide additional miles of thrust for the entire spacecraft assembly, and cannot compensate for the downer at all. weight. "

Seeing Yang Fan's approval, Warrior Yu Cheng became less angry and lowered his voice: "Before reversing and docking with the spacecraft, the robotic arm in the spacecraft's return cabin will automatically grab the lunar soil samples in the ascender cabin, and then Store them in the spacecraft's return capsule.

Yang Fan nodded and said: "From a technical point of view, there is no problem. But there are still many risks and certain factors in the whole process. Your requirement is that they must take those risks and certain factors into account, and Come up with corresponding response plans.

When the inner cube frame of the golden meteorite star core and the bottom of the descender were advanced and fixed, they were also advanced and fixed with the parachute bag at the same time. In that case, the golden meteorite star core would not be able to land with the parachute bag.

Therefore, usually, all lunar exploration and return missions basically abandon the descender.

Hearing Yu Chengwu's answer, Wei Yan nodded slightly, then raised his hand and said: "Continue."

It only needs to slow down the golden meteorite star core during its descent in the small atmosphere, so that it falls too slowly. In that case, you will not be able to obtain the golden meteorite star core under the earth. "

In this way, the entire golden meteorite star core is firmly fixed under the descender, so it will be displaced and even fall off. In that case, you will use the descender to transport the golden meteorite star core down to the lunar orbit, and then retract and dock with the orbiter in the lunar orbit, and return to the earth together.

Although the descender does not have a certain mass, the moon's gravity is relatively strong and the earth's gravity is relatively weak. Therefore, the entire return process actually does not require too little thrust, but also consumes too little fuel.

You must know that the entire descender is weightless. The heavier the weight, the smaller the thrust required, so it will carry less fuel and the launch cost will naturally be lower.

Haha, I am fully and dare to mention that matter to you. What do you think, is it possible? Yu Chengwu asked with a smile.

Seeing Zhang Jun, Wu Hao and others nodding, Yang Fan smiled and said, "It seems they are well prepared."

Facing Wu Hao's doubts, Wei Yanxiong nodded and responded: "Yes, you plan to transport the descender back to Earth together with it.

After hearing Yu Chengwu's introduction, everyone present nodded in agreement. It sounds like that plan is indeed the most realistic and feasible plan, which can make minimal use of existing resources and control the cost within a very reasonable range.

Because it is a gold meteorite star core, so as long as it is smashed, there is no problem with the slower speed. Therefore, you cannot control the size and type of the umbrella bag to a larger size.

First, he said that if he let it fall freely, it would explode directly when it hits the ground, forming a crater. Just say that such a small meteorite decelerates and hits directly, I am afraid everyone will be frightened.

Wu Hao's doubts are not justified. You must know that in order to reduce weight, the Meidu descender is used to transfer external materials to the outside of the spacecraft before docking. In this way, the descender loses its value and cannot be separated immediately. Then let it crash under the moon. The orbiting spacecraft only needs to transport the materials outside the transfer pot back to the earth.

The power of a one-ton meteorite hitting directly is probably less than that of a missile.

Then let it hit you directly? Zhang Jun opened his mouth and asked Yu Chengwu. I had never imagined that the transportation process would be so complicated, straightforward, and even rough.

Yu Chengwu, on the other hand, shook his head and said with a smile: "Yes, what was separated from the golden meteorite core was actually a special parachute bag. It was actually hidden at the bottom of the descender.

Does he mean returning to Earth along with the descender? Wei Yan interrupted Yu Chengwu and questioned.

The descender used its remaining fuel to transport the golden meteorite core to the predetermined landing orbit, and then retreated and separated from the golden meteorite core. "

Everything must be planned and moved forward, and if it is moved, success will be achieved, do you understand? "