Military Technology

"Twenty hours? According to the topography of the lunar surface, even if a lunar emergency rescue vehicle with stronger off-road capability is used, the maximum speed is probably only 60 to 70 kilometers per hour. According to the calculation of 70 kilometers, 20 hours will not be enough. That's fourteen hundred kilometers.

And the circumference of the moon is more than 10,900 kilometers. After conversion, our rescue distance is only about one-eighth of the circumference of the moon's equator. Whether the distance is too short, beyond this distance, the rescue force will not be able to arrive in time, what about the passengers in the crew cabin, should they just give up? "Wu Hao stared at Zhou Xiangming and asked at this time.

Hearing Wu Hao's words, Zhou Xiangming shook his head with a smile and said, "Under normal circumstances, this will not happen. Whether it is landing on the moon or launching from the moon, a tilt angle is required, and Not straight up and down. In fact, not only the moon, but also the earth's launch and landing.

The reason why this tilt angle is chosen to rise and fall is that it is better to use the inertia of the rotation of the earth or the moon to reduce the fuel consumption as much as possible during the ascent phase. And the landing is to prolong the time the lander flies in the atmosphere, so as to slow down as much as possible.

For any of our space missions, any movement of it needs to be extremely precise every minute and every second. Therefore, this rising stage and falling stage are all calculated by us to ensure that they are correct.

For example, for a launch at the Northwest Launch Site, the rocket was launched from the Northwest Launch Site, and the fairing fell in Los Angeles County, which is more than 600 kilometers north of Anxi. The distance between the branch lines from where the fairing falls is about 1,000 kilometers.

In the same way, according to our traditional spacecraft's return capsule, from loading into the atmosphere to landing on the landing site, the ground distance is almost the same.

The gravitational force of the moon is only one-sixth of that of the earth, so its landing and rising heights are much lower than those of the earth, and the relative distance of the ground is also much shorter than that of the earth.

Therefore, even if the lunar lander fails during the landing or ascent, and the crew module emerges from the landing, the final landing point of the crew module is far less than this distance from the landing and take-off site of the lunar scientific research station.

In fact, at the beginning of the design, we have reserved a large capacity to ensure that we can arrive in time for rescue in most cases.

Of course, there are some uncontrollable factors. If the crew module landed in other areas on the moon, then we must not be able to catch up with the rescue, but this situation is almost impossible. "

Hearing Zhou Xiangming's introduction, Wu Hao nodded. He also understood what Zhou Xiangming meant. The 20-hour rescue window had already met most, or even 99%, of emergencies. Another 1% is unpredictable, it is an accident within an accident, so naturally it cannot be rescued.

This is a space exploration mission, no matter what mission it is, as long as it enters space, it faces huge risks. Not to mention the moon landing, the risk is even greater.

As far as the earth is currently and in the foreseeable future, human beings still cannot guarantee complete safety and travel between the earth and the moon without any risk.

In fact, even a very mature passenger flight cannot guarantee that every flight is safe and error-free. It also has risks, and this is already the safest means of transportation on earth.

"continue!"

Seeing Wu Hao's gesture, Zhou Xiangming continued with the previous introduction.

In addition to the escape rocket thrust reverser, we also designed and installed an inflatable buffer airbag at the bottom of the crew compartment. When the crew capsule detaches from the rocket and makes an emergency landing, the airbag will also inflate rapidly, reducing the impact and vibration of the crew capsule with the lunar surface. While ensuring the stability and safety of the occupant cabin structure, it also protects the damage to all members of the crew to the greatest extent.

After the crew cabin makes an emergency landing, it will use the solar panels on the outer wall of the crew cabin to continuously transmit relevant radio distress signals. Relying on our detection satellites on the moon, we can find and locate at the first time, as well as provide communication support services. In this way, the rescue team can set off at the first time, find the crew cabin in the shortest time, and rescue the passengers.

What if the rescue team has not been able to arrive after more than 20 hours, will the passengers in the crew cabin be suffocated to death like this? Zhang Jun asked aloud at this time.

He was a little embarrassed to be asked by Zhang Jun's words, Zhou Xiangming coughed twice, then shook his head at Zhang Jun and replied, "Under normal circumstances, this situation does not occur.

Of course, it is not ruled out that there are some accidents in which the crew cabin landed to a place beyond our rescue capability.

So at this time, the passengers in the crew cabin will choose to save themselves. They need to save as much energy, oxygen, water, and food as possible to last until the rescue team arrives.

We will also put some additional emergency supplies in the crew cabin. If the passengers can calmly and calmly respond and distribute them scientifically, they can theoretically support it for a longer period of time. As for how long it can last, it depends on the specific situation.

If the rescue force can't arrive at this time, then the result will only be the worst one. As for how these crew members choose ~www.readwn.com~ it depends on them. "

This is too cruel to imagine. Yang Xiaoyun sighed involuntarily.

"This situation is something we do not want to happen, and we do our best not to let it happen, but it is true that we and every crew member need to face it. All passengers who choose to go to the moon will have to bear the consequences. I want To take risks, you must learn to take risks.”

Speaking of this, seeing everyone's faces are a little dignified, Zhou Xiangming said with a smile: "But don't worry, the probability of this situation is very low, and it is basically unlikely to happen. And with the continuous advancement and development of technology, our spacecraft The security will also be greatly improved.

Besides, we have designed so many disaster recovery plans. If they are still not spared, then these members are too unlucky. "

hehehehe...

Hearing Zhou Xiangming's joke, everyone at the scene laughed lightly.

As for Zhou Xiangming, he went on to introduce: "The section below the crew cabin is the landing and lift-off platform, of course, it can also be called the propulsion service cabin.

The biggest change of our lunar lander is on this landing platform. We creatively fuse them together to perform lunar landing and lift-off docking missions.

From top to bottom, the entire landing and lift-off platform is composed of control section, resource storage section, propeller, and landing frame. "

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