Military Technology

Chapter 2371 Strive to realize "interstellar" travel

However, these rockets can only complete the recovery of the core first stage rocket, and at most the recovery of the fairing. However, the core and second-stage rockets are often not recycled. Why? Because the technical difficulty and cost of recovering the core-stage rocket are too high, and it is not worth it for many companies, including many institutions.

In fact, when we started this project, we also had this question: Is this project really worth it? Will the final recovery cost be worse than manufacturing a new one?

But after some discussion and debate, we finally decided to do it. In our view, this is both a technical issue and a cost control issue. The two must be combined for the project to be cost effective.

In other words, we need to develop a core-level two-stage rocket with excellent technology, safety and reliability, and low manufacturing and use costs. We have already mastered the return and landing technology, but it is very difficult to add economy.

So in order to overcome this problem, I know everyone has worked hard for a long time. Fortunately, Huangtian paid off and we succeeded. Today's success is enough to prove that our original choice was right.

In addition to reducing costs, this technology can also greatly save space junk in the earth's middle and low-Earth orbits and keep the orbit clean. In fact, a lot of garbage in near-space orbits is caused by the debris of rockets from these launch missions. These secondary rocket remnants were abandoned in orbit after completing their launch missions. Some of them would fall into the atmosphere and burn up after a few months, while others could float in orbit for a long time and continue to interact with other objects. Floating objects and space junk collide and break down into smaller space junk particles.

These space junk and tiny particles flying at high speed around low-Earth orbit will cause great harm to human beings' medium and low-orbit spacecraft, including some round-trip spacecraft.

If you are not careful, a particle may penetrate the spacecraft. This kind of space junk is too small for the ground to predict. No one knows when it will encounter it. This has become a matter of luck.

Currently, there are many examples of spacecraft being damaged by these sky debris, including some satellites operating in space orbits that were completely damaged or even completely destroyed due to being hit by space debris.

Including the famous International Space Station, there have been several leaks due to attacks by space debris, which has greatly reduced the operating life of the National Space Station and accelerated its aging.

So through this technology, we can reuse the second-stage rocket. Starting from ourselves, we should reduce the generation of space debris and consciously keep the space environment clean.

I hope that under our leadership, all countries and major aerospace companies can truly take responsibility and consciously maintain a clean space environment. This is not only for everyone, so that we can all have a clean space environment, but also for ourselves, and even more for our future generations.

I don’t want to see our descendants having the earth’s orbit filled with garbage, just like the oceans are today. It is very easy to pollute, but very difficult to clean up. It may take many years, hundreds, thousands or even tens of thousands of years to decompose and digest all these pollutants.

Speaking of this, Wu Hao paused briefly, then looked at the audience again and said: "In addition, the successful development of the reusable two-stage rocket will lay a solid foundation for us to carry out subsequent space exploration projects.

In the future, we will invest heavily in space exploration, especially some major projects, which require us to have our own safe, reliable, and cheap launch vehicles to undertake the transportation tasks of these major projects. The reusable two-stage rocket technology will be a crucial project for us to reduce launch costs in the future.

To give a very simple example, the lunar scientific research station construction project we are already implementing includes a large number of transportation tasks. We need to transport various equipment and supplies from the earth to the moon. If it is transported by ordinary launch vehicles, this will be a very large cost.

But if we use this fully retractable launch vehicle, we can reduce the entire launch and transportation cost to one-tenth or even less.

So for everyone, this Jianmu-2 reusable core two-stage rocket is just the beginning. We need a core-two stage rocket with stronger carrying capacity. Our next focus is to develop it as soon as possible and apply it to Jianmu A reusable core two-stage rocket of configuration 7. "

As he spoke, Wu Hao glanced at everyone in the audience, and then continued: "In addition, we will also develop our manned aerospace vehicle, or aerospace plane, on this basis.

It will be a new generation of space shuttle. The technical principles of this manned aerospace vehicle are very similar to the reusable core two-stage launch vehicle we are currently experimenting with. It is also carried on a first-stage rocket, which pushes it to a suitable height, and then ignites it and continues to rise to the relevant orbit.

Then after completing a series of space missions in space, it returns to Earth and glides and lands on the runway like a space shuttle.

And it can also increase the number of launch vehicles at the bottom according to the height of the orbit. It can be a separate core-stage rocket, or a core-stage plus two or four booster rockets. It can even be a three-stage rocket, with a two-stage launch vehicle below, which can provide enough thrust for a manned aerospace vehicle, allowing it to rise to a higher orbit, or even enter the moon. The orbit or the earth-fire transfer orbit can realize interstellar travel.

Let me explain slightly, the interstellar travel here refers to the travel between stars, not the interstellar travel between galaxies as everyone understands literally. "

Hehehehe...

A knowing weakening erupted from the audience.

Wu Hao, on the other hand, said with a smile: "At the same time, through this manned aerospace vehicle that can be fully reused, we can greatly reduce the cost of shipping tickets between the sky and the earth, thus making it possible to travel to the sky. The price will be lowered. Let it no longer be a patent for the rich. In the future, as long as everyone is willing, you only need to spend a small fee to complete a real sky trip.

Rather than the so-called space travel promoted by some commercial aerospace companies, it is just a so-called space travel to experience the pleasure of weightlessness for two to three minutes near the Kármán line at an altitude of 100 kilometers.

Our space travel will take passengers around the Earth in space for several days, to the space station or even on our interstellar flights to the moon or even Mars for vacation. "