Previously, I told you about the structure and components of the time train. Today I will continue to talk to you about the specific details of the time train. Liu Yiyi's majestic and sharp eyes swept across the faces of Xian Liyan and Qin Liusi: Now please answer me a question: When the time train is flying in space, what are the most important basic necessities for the safety of astronauts?
Lang Bute stood up in a hurry and answered: Sister Yiyi, who doesn’t know, it’s food.
Na Feifei immediately corrected: No, it should be water!
Lan Junguo quickly responded: No, it's oxygen!
Liu Yiyi smiled, waved her hand, and motioned for them to sit down: "Whether your answer is correct or not is very important to my explanation below." After you listen carefully to the answer, you will naturally understand it. I have already talked about the structure of the track cabin and cockpit of the time train, and now I want to talk about the service cabin.
The service cabin of the time train is also called the propulsion cabin, also known as the equipment cabin or instrument cabin. It is immediately behind the cockpit and, as its name suggests, is specially prepared for astronauts. But there is a service cabin in each car of the time train, which is usually equipped with a propulsion system, a power supply system, gas bottles and water tanks, and liquid food. It is specially prepared for passengers and astronauts and mainly provides oxygen and water. Water and oxygen are the most important basic necessities for the safety of astronauts and interstellar passengers.
Having said that we cannot do without oxygen, next I will explain to you how to utilize and use an essential item to ensure life safety: oxygen.
The time train is also equipped with an airlock cabin, which is a life support for astronauts or passengers when they escape from orbit. It is a device that ensures that all the gas in the time train does not leak into space. To put it bluntly, it is an absolutely sealed device. This equipment is an airtight device used by astronauts and passengers to enter or return from space and land.
Here I would like to add that in the earliest 2-cabin spacecraft, it was part of the cockpit; in the later improved 3-cabin spacecraft, it was part of the orbital module. But in the most advanced time train, it is a separate part.
Now let me talk about the last part of the time train - the docking cabin, which is the docking mechanism of the time train and is connected to the cockpit or track cabin. It should be noted that the earlier two-cabin spacecraft were connected to the orbital module; later, in the three-cabin or multi-cabin spacecraft, they were connected to the cockpit. Its main function is to dock and lock with other spacecraft or space stations.
At the same time, it is also a mechanism for escaping or abandoning danger. To use an analogy, if any one of the carriages in the time train is in danger, it can cut off its tail to protect itself like a gecko, because each carriage is a complete independent system of the spacecraft. This is very similar to the car hook-up of an ordinary train.
Report to the instructor, I still don’t understand, if we really encounter danger or some kind of malfunction, how can we save ourselves? Xi Liyan immediately raised her hand: Can we move from one carriage to another? What if the car in the middle, at the end, or at the front has a fault that cannot be rectified, or is in danger?
Good question! Liu Yiyi was in high spirits and her face was full of glory. She gestured for Xi Liyan to sit down and continued to explain: OK! Next, I will talk about how to save ourselves if we encounter a malfunction or unexpected danger. First of all, let me make it clear to everyone that the seat of every passenger and astronaut is a special life-saving device. It is not an ordinary seat, it is called an ejection seat. If we are in danger, as long as we remain clear-headed and calm enough and press a red button on the right side, the ejection seat will eject each of us passengers or astronauts from their original seats to escape.
At the same time, you must quickly press a green button on the left. This is a landing device, which is an escape parachute. Then, quickly climb up to the lifeguard tower, which is an open-cabin skydiving device specially used for escape. The function of the lifeguard tower is to be a manned maneuverable device that can quickly separate the cockpit.
In addition, I must also emphasize that if we encounter a malfunction or unexpected danger, our first priority is to keep a clear head and a calm wit. In order to ensure the personal safety of astronauts or passengers, the time train has also installed some subsystems, which are designed to allow astronauts or passengers to safely enter space and return to the ground safely, or land on other interstellar planets.
First, let’s talk about the structural sub-system of the time train, that is, the time train is both integral and independent; that is, each carriage is an independent spaceship. It can ignite itself and use nuclear fuel to ensure normal flight.
Each carriage of the Time Train is equipped with a life support subsystem, each with its own independent power supply subsystem, instrumentation and lighting subsystem, thermal control subsystem, attitude control and track control subsystem, and return landing subsystem. Among them, I would like to remind everyone that the life support subsystem, emergency lifesaving subsystem, instrumentation and lighting subsystem are necessary and indispensable components for both previous spaceships and our most advanced time trains. And a perfect system.
Report to the instructor, there is something I still don’t understand, please explain: Can the time train still return? How to return? Qin Liusi suddenly raised his hand and stood up and asked loudly: Since each carriage of the time train is an independent and perfect sub-system, what details should we pay attention to for each specific carriage?
Your question is very straightforward, critical, and more practical. I can tell you with confidence that the time train built by us Chinese will never have any of the tedious details you just raised. However, the question you raised is worth thinking about. As the saying goes, sail with caution before sailing forever. Next, I will take a carriage of the Time Train as an example to explain it to you in detail.
Each carriage of our time train is an independent life support system. It consists of a crew cabin, equipment cabin, final stage rocket cabin, etc. The crew cabin is equipped with a main cockpit and a co-cockpit, but the co-pilot astronaut usually rests in the cockpit and is on standby. In fact, although the crew cabin has two cabins, there is only one person driving it.
The cockpit is equipped with 8 ejection seats and can carry 8 passengers. The Time Train has a total of 9 cars, and the full load, including the crew, is 81 people. In other words, in each carriage, there is a co-pilot who is also the driver of the carriage. However, all co-pilots are on standby. You should understand by now that the Time Train is equipped with 9 astronauts and 72 people are passengers or other personnel, such as space tourists, scientific research workers, etc.
Our time train has a total length of 108 meters, and each carriage is almost 12 meters long. The cabin is the longest, with 8 people at 6.4 meters. The passenger cabin is oblate spherical, with a diameter of 2.3 meters and a weight of 2.4 tons. The outside is covered with high temperature and high pressure resistant materials. special material. It can withstand high temperatures caused by friction when re-entering the atmosphere, with a maximum temperature resistance of 5000°C-8000°C.
(End of chapter)
