Vol 5 Chapter 2521: question and answer

"After the space express vehicle is launched, it will travel between the Earth and the moon and orbit it.

First, it will fly around the Earth in a low-Earth orbit of 400 to 600 kilometers. So as to wait for the module thrusters launched from the earth, the cargo spacecraft, or the manned spacecraft to dock. After the docking is completed, there will be a module thruster to accelerate the orbit change, and the space express will be pushed from the original low-earth orbit of the earth to the moon transfer orbit.

It then entered lunar orbit four days later and circled the moon. During this process, it will continuously lower the altitude of the orbit around the moon and release the lunar lander according to the procedure.

After the lunar lander is separated, it will start the lunar landing procedure and land at our lunar scientific research station in Zhihai.

During this process, the space express vehicle will continue to fly along the lunar orbit, waiting for the lunar lander to lift off. Of course, this can be one ship, or two ships can be used alternately, which will greatly reduce the flight time of Space Express around the moon.

After the lunar lander arrives in orbit and docks with the Space Express, the Space Express will immediately change orbit and enter the Earth transfer orbit.

After a three-day lunar transfer orbit, Space Express will enter Earth orbit and begin orbiting. And follow the procedure to release the manned spacecraft.

After the manned spacecraft leaves the space express, it will start to fly along the predetermined orbit, conduct analysis, return to the atmosphere of the capsule, and then land on the earth. "

Speaking of this, Guo Yulong said with a smile to Wu Hao and everyone: "This solution saves the cost to the greatest extent, making most of the system unit modules in the entire moon landing process can be reused many times, and the transportation of a single person The cost could be one-twentieth of the cost of other conventional lunar round-trip programs, or more."

I have a few questions. At this time, Yang Fan who was sitting next to Zou Xiaodong asked. As the company's CTO and also a shareholder of the company, he naturally attended the meeting and supervised the entire technical part of the project, so he naturally had to ask questions.

This is both a warning and a help. A lot of things are obscured by one leaf, so people can't see clearly. On the other hand, bystanders can see these problems clearly and rationally from the outside, so as to guide them.

Seeing Yang Fan speak, Guo Yulong, Yu Chengwu, Zhou Xiangming and others all looked at him, waiting for his question seriously.

First of all, have you tried this solution in the field, and is it really technically feasible? Yang Fan looked at Guo Yulong and Yu Chengwu and asked seriously: "So far, I haven't seen any relevant technical verification tests of yours. So far, all we have heard are some of your self-justified claims without sufficient experimental data. support.

The Space Express program was proposed by us, and we have also given you a lot of program and technical support, but this does not mean that you can sit back and enjoy the benefits.

Not to mention other things, let’s just say that this space express frequently travels between the earth and the moon, and frequently changes orbits on the moon and the earth’s orbit. How much fuel do these need to consume, and whether the various systems on the Space Express can support such frequent movements.

In addition, whether the entire Space Express has a backup system and an emergency response system. Also, the most important part of the whole plan, how to design the lunar lander, what do you think?

You know, this lunar lander will frequently land on the moon and dock with it. In the conventional scheme, the lunar lander is divided into two modules, one is the lunar lander and the other is the ascending crew module. When the passengers on the moon need to return, they only need to go up and return the crew module, and the huge lunar lander will be discarded on the moon.

This seems to be a waste, but it is actually for great weight reduction, but the white ascender can smoothly ascend from the moon and enter orbit for docking.

As for your lunar lander plan, I haven't seen it yet. "

Hearing Yang Fan pointed out so many problems in a series, everyone in Haoyu Aerospace looked a little ugly. But no matter how ugly it is, you have to bear it, because Yang Fan is not only their leader but also a shareholder of Haoyu Technology, who determines the life and death of this project.

Mr. Yang, I'm very sorry, this is indeed a negligence in our work. It was Yu Chengwu who spoke, and he showed shame at Yang Fan and said, "We will answer the questions you raised in detail below."

After finishing speaking, Yu Chengwu looked at Zhou Xiangming. Seeing this, Zhou Xiangming knew that it was time for him to play. Although Zhou Xiangming is the person in charge of the entire Space Express project, Zhou Xiangming is the overall person in charge of the entire lunar scientific research station and its subsidiary projects.

So at this moment, he must stand up and admit his mistakes, and answer these questions head-on.

"Yes, but this is because our work has not been done properly. We will conduct an in-depth review after we go back."

Zhou Xiangming first admitted his mistake, then opened his transparent folding device, and then slid the transparent folding screen to introduce it to everyone.

"First of all, we are not doing nothing. It is not like this to launch the Space Express directly at that time. In fact, we have already planned an experimental spacecraft, which will be launched this autumn and winter. Its main function is to verify the entire Space Express project. The feasibility of the technology, and carry out related space experiments. In the future, the relevant experimental results and related technologies of this experimental spacecraft will also be applied to our space express.

We have adopted a modular design for the entire Space Express, UU Reading www.uukanshu.com This also means that all parts of it can be replaced and updated, which not only facilitates timely handling of various emergencies during future operations , It can also facilitate the maintenance and updating of these parts.

In addition, considering that the entire space express needs to reciprocate frequently in the earth-moon orbit and run for a long time, we designed two sets of the same system for the spacecraft. These two systems are not related to each other, but they are backups of each other. When one of the systems fails, it will automatically switch to another system.

These two systems are not only at the software system level, but will also be extended to the hardware system. For example, the main engine of the spacecraft, the attitude engine, the life support system of the spacecraft, and so on.

In this way, the safety of the entire space express vehicle during the voyage can be greatly guaranteed.

In addition, we have not designed an emergency avoidance procedure for the Space Express. When the Space Express fails at any stage of the earth-moon orbit, and the system and humans cannot handle and eliminate it in time, only the astronauts need to confirm it. Or if it is confirmed on the ground, the Space Express will automatically switch to emergency mode, and on the premise of ensuring the safety of the crew members in the cabin, it will start to return along the scheduled procedure to send the crew members back to Earth. "