Military Technology

Hearing Qin Xinghe's laughter on the phone, Wu Hao smiled at Zhang Jun opposite him, and then said in a gentle tone: "Of course, in addition to performing uplink and downlink cargo transportation, as well as on-orbit inspection and maintenance of space orbits, In addition to work, this multi-purpose orbiter will also be used to transport people in and out of space in the future."

Oh, after hearing what Wu Hao said, Qin Xinghe immediately became interested. He smiled and said: "Let me just say, this multi-purpose orbiter that you have spent so much effort to build cannot be used for this purpose. , this is not in line with your usual style."

Hearing Qin Xinghe's teasing, Wu Hao suddenly had black lines on his head, but he still smiled and introduced: "Currently, we mainly rely on spacecraft to travel to and from space. Cargo spaceships are needed to transport goods, and cargo ships are needed to transport people. human spaceship.

Of course, there are also some spacecraft that can transport both cargo and people. For example, the Dragon spacecraft built by Musk and our Walker spacecraft. They can be used to carry both cargo and people.

Although universalization has been achieved, there is actually a big difference between the crew cabin and the cargo compartment of the Crew Dragon spacecraft and the cargo model of our Walker spacecraft.

For example, in order to be able to carry more cargo, the freight warehouse has renovated the original manned warehouse and dismantled some of the facilities, equipment and systems that were originally used to carry people and ensure the safety of personnel, thereby maximizing the increase in capacity. space, reduce weight, and improve cargo loading and transportation capabilities.

After all, it is only used to transport goods and people. Naturally, these facilities, equipment and systems are needed to ensure the transportation and life safety of people.

Therefore, even one kind of spaceship is divided into two models, cargo and passenger respectively. Because of the cost, the actual situation will change.

After all, modifying the cabin structure, facilities and equipment also requires time, energy and capital costs, so save what you can.

Apart from this, the two spacecrafts have nothing in common with other traditional spacecrafts. Not only the crew cabins of the two spacecrafts, but also their cargo compartments and return capsules cannot be recycled and reused.

If you want to reduce the cost, from the current point of view, it is very possible that other parts have not been basically completed, so you can only start from the orbital resource warehouse of the seven-stage rocket and spacecraft. After all, they occupy the launch and use costs are relatively low. , but so far there is no way to recycle the reused parts.

At present, the Jianmu-7 special experimental launch vehicle has not yet been successfully developed and tested, and has successfully carried out several launch missions. Its performance is very good, which makes it the world's first hand-held rocket to achieve overall launch. It is a fully recycled and reused launch vehicle, and it is also the first fully recycled and reused launch vehicle that is now put into commercial launch.

But in your opinion, the cost and fee are still too low, and there is no way to popularize it on a small scale. Therefore, if you want fewer people to retreat into space, and if you want to make human space exploration and universe development a reality, you must lower the cost so that fewer people can afford it.

As for the spacecraft, the crew module and the cargo compartment cannot be recycled and reused, but the orbital resource module can.

Therefore, in this way, the corresponding cost of the spacecraft cannot be increased minimally, thereby saving the cost of a single mission.

However, that starship solution is not without its shortcomings. It is not that it is too light and consumes too much fuel. It is only the descending stage. In the ascending stage, a small amount of fuel is still needed to decelerate. In this way, the fuel required only increases slightly, the cost goes up, and the fuel takes up a small amount. of its own weight, thereby slightly reducing its carrying capacity. "

So you are thinking about how to simplify and compress the cost of recycling, and the most direct and least effective way is not to increase the number of recycling. In that case, the cost of recycling will be reduced.

But in your opinion, even if the recyclable and reusable technology of the crew capsule, including the recyclable and reusable technology of the launch vehicle, is adopted, it will not increase the cost of a single manned or cargo spacecraft launch mission very much.

Although recyclable and reusable technology is used, the rocket stages launched and the spacecraft as a whole cannot be landed again and thus reused. But the entire landing process also costs money. After all, the recovery of those spacecrafts is also a time-consuming and laborious process, and the cost is also cheap.

So you are thinking that you can take a step back to reduce the launch cost of the spacecraft and bring its cost up, so that you can meet the needs of fewer people and allow fewer people to realize their dream of flying into space.

So, your Jianmu-7 special experimental launch vehicle is gone.

However, you are still satisfied, because even if the recycling technology is adopted, the cost of UU Kanshu www.uukanshu.com has been reduced very little, but it still meets your requirements.

That's because even the core first-stage rocket of the launch vehicle, the booster, including the fairing cannot be recycled and reused, but there is no seven-stage rocket in the entire transport rocket that can be recycled and reused.

But the overall launch cost is still too expensive, including the cost of the rocket and the cost of launching the spacecraft. It still cannot meet your expectations.

In addition, your technical experts have paid attention to the seven-stage rocket and the resource return capsule of the spacecraft, so they are thinking about whether the seven can be combined into one. In that case, you cannot use only one rocket body and one rocket body. By combining the engine and the control system, it is possible to save half the cost.

The sum of the seven is a relatively low fee, which limits the cost reduction.

By relying so much on that kind of technology, you really cannot reduce the cost of the launch vehicle to the highest level. Logically speaking, the orbital resource warehouse of the spacecraft cannot do that. Anyway, the technology is inferior.

Despite using that method and technology, you have not yet reduced the cost of launching manned and cargo spacecraft to a level that was previously unimaginable.

In this way, you are looking at whether the launch cost can be reduced. At that time, you focused your attention on a link that you often ignore, which is the landing link.

That means that when you carry out a single cargo spacecraft or manned spacecraft launch mission, you will consume a core seven-stage rocket of the launch vehicle and the orbital resource bin of the spacecraft.

Inspired by Musk's starship plan, you have designed a spacecraft similar to the Civic Starship, which directly integrates the seven-stage spacecraft and the spaceship, so that it cannot retreat into space and orbit, and it cannot Achieve return to the small atmosphere for landing and achieve recyclability and reuse.