I ask you to build tractors, but you build rockets?.

Chapter 118 Long March NO.15

In addition to Lucia's Yuri, Antoine and Badis, two outstanding space agency directors from China and Italy, also came to China in a low-key manner.

Their purpose is the same as Yuri, and they also come to the moon and the space station.

Among the four major space agencies in the world, ESA, NACA, Lucia Space Agency, and China Space Administration; theoretically, China Space Administration is the weakest, but ESA’s combined technical strength is actually very strong.

The Lucia Space Agency has the technical foundation but no money, NACA is too complex and everything it does costs money, and the European Space Agency has the money and technology, but it is indeed the most chaotic.

In so many countries across Europe, you are basically good at combustion chambers and I am good at turbine pumps. They design rocket bodies very well, and they all have very good strength in a certain field, but they lack all-round integration and cannot be closely united.

For example, Aramco's current Artemis program is very different from the Apollo program half a century ago. It is open to cooperation with 11 countries, including European countries.

But the problem is that the Artemis project has to be queued up, and everyone knows that NACA is a long-shot project, and there is no hope for them.

Although the Chinese Space Administration does not even have heavy rockets now, as the world's largest industrial country, its steel production exceeds the second to No. 20 combined, and it is the second largest economy. If they are really serious, they will definitely land on the moon. No one will Suspicion was unsuccessful.

What's even more outrageous is that China has actually raised a private aerospace company that works side by side with major aerospace agencies. It also has the potential to carry out manned moon landings, which is really enviable.

The two stayed in the capital with Yuri for a few days, and the Aviation Development Committee was also discussing whether to accept them.

Of course the space agency accepts it. Not to mention that China and Italy still have many unique technologies. The international significance of this matter alone must be fought for. However, the Tiangong Space Station is operated by the Aerospace Development Commission, and the opinions of Xinyuan Aerospace Power are equally important. , so I threw the question over.

After obtaining Lin Ju's authorization, Xinyuan's contact person agreed. Except for some necessary but understandable restrictions, he almost had a laissez-faire attitude toward the Tiangong Space Station.

The space agency was a little pleased but also secretly wondered, why didn't Lin Ju pay attention to such an important space station?

It was not until November 11, when the space agency launched the Shenzhou No. 13 spacecraft to the already docked Yun Gong-Tiangong 11 combination, that it learned a piece of news.

Xinyuan has sent a new round of orders to downstream companies, one of which belongs to the Eighth Aerospace Academy. It is inferred from this batch of parts that they will be used in giant rockets with a diameter of at least 10 meters.

The boss immediately searched on the official website of Xinyuan Company and quickly found the corresponding rocket.

It is the Xinyuan-11 giant rocket. The parameters previously set for this rocket have changed slightly. The layout of the 19-meter diameter and 380 K7300s at the bottom has not changed. The thrust has increased from 7500 tons to 5900 tons, and the take-off mass is 247 tons. The earth orbit carrying capacity is 101 tons, and the lunar transfer orbit carrying capacity is [-] tons.

The capacity parameters are lower than those previously announced, but it also means that this is no longer a PPT, but has entered the actual demonstration, R&D and manufacturing stage, and it is really planned to be built!

"What a ghost!"

The boss was in the Manned Spaceflight Office when he was looking through the data. Academician She, who happened to be here to revise the lunar scientific research station plan, was also there.

Academician She came over and learned that Xinyuan Aerospace was probably building the Xinyuan-[-] giant rocket. The surprise on his face made the old face deformed.

"The CBC configuration of Xinyuan [-] is enough to land on the moon, and their rocket reliability is also good. Why are they still researching giant rockets? This is even more exaggerated than the Long March [-]!"

The Long March 130 we are talking about now is still the original old configuration, with two YF130s in each of the four boosters and four YF5700s in the core stage. The total thrust is 150 tons and the designed low-Earth orbit transport capacity is 7500 tons. It is already much more powerful than the Saturn V. , as a result, Xinyuan-[-] has been exaggerated to a take-off thrust of [-] tons.

Academician She is not doubting Xinyuan's technical strength. After all, this company is really outrageous as if it is cheating. You can't steal those from abroad, but why do they build such a powerful giant rocket?Landing on Mars?
Wait, it's really possible!

The boss saw Academician She lowered his head and thought for a while, and suddenly his face turned pale as if he was constipated. He quickly asked what happened, and then heard Lin Ju's statement that he might be preparing to land on Mars.

"Are you sure? Landing on Mars? I'm afraid it's not just about having enough rockets, right?" "The biggest problem in landing on Mars is the rocket. Since the last century, various countries have demonstrated that a spacecraft weighing at least 300 tons is needed, but the launch of Xinyuan [-] Two times is enough. The ten-meter-diameter cabin can only be prepared for long voyages. Only such a large spaceship requires a giant rocket;
And isn’t Xinyuan currently developing a nuclear propulsion plan?If A100 is added, the success rate will be close to 99%. It has only been a few days since we went to the moon, so it will not be used at all. "

"hiss."

The boss sucked in half of the cold air in the room, and Academician She had already sucked in the other half, causing everyone else to feel a lot warmer.

He felt the seriousness of the situation again, and waited for a long time before saying:

"Don't report this in advance. Damn it, we can't be in an endless space race with a private company, right? This is just a guess. Don't draw conclusions first."

Academician She: "Look at their careless attitude towards the space station. What could be more charming than this?"

"No, even if these subsystems are completed, it will take more than three or four years. Besides, there is a window limit for landing on Mars. At least it will not be started when the moon landing plan is over."

Academician She slapped his forehead: "I forgot about this. The window period for the next Mars exploration is from May to June of 2018. If we really go, we must send an unmanned probe there first, and then the window period after that will be It’s September 5 and 6. No matter how radical we are, we will be gone after seven years. I am unfounded.

As long as it’s not landing on Mars, what could be more awesome than landing on the moon? "

……

In the Fifth Institute, Li Xi, as the chief engineer of Long March No. [-], announced one good news and two bad news to the team.

Bad news: The Long March [-] plan was terminated and the project was cancelled;
Good news: The team will not be disbanded and will receive an additional 30 billion yuan in funding;
Bad news: They have to build a new rocket, which is more troublesome than the Long March [-].

However, what is unexpected is that the rocket that replaced the Long March [-] was not the rocket of the private company Xinyuan Aerospace, but the Long March [-].

The Long March 110 low-Earth orbit transport capacity is 30 tons, which seems to have nothing to do with the Chang [-], which has a LEO transport capacity of [-] tons, but don't forget that the Long March [-] is bundled with four boosters.

After a study, the First Academy dismantled two rockets, the Long March [-]A and the Long March [-]B:

Long March 1956A: Reduce the four boosters to two, with a take-off thrust of 1500 tons, a take-off mass of 70 tons, a LEO transport capacity of 27 tons, and a lunar transfer orbit transport capacity of [-] tons;
Long March 130B: Polished rod type, with no boosters and only two core-stage YF978s, with a take-off thrust of 777 tons, a take-off mass of 24 tons, and a LEO capacity of [-] tons.

The transport capacity of the Long March [-]B is close to that of the Long March [-], so there is no need for the Long March [-] to exist. It cannot be reused anyway, so it is better to reduce one project.

However, the team still had to continue working, and Li Xi was given the important task of developing the new Long March [-].

航天局要求新长征五号使用6米直径箭体，塞下7台YF135制造起飞推力2600吨，起飞质量2000吨，近地轨道运力60吨的可重复使用重型运载火箭；
The second-stage rocket engine will use the newly designed YF90, a 220-ton staged combustion cycle hydrogen and oxygen engine, and the lunar orbit transport capacity can reach 24 tons.

At the same time, the CBC configuration of the new Long March 15 was developed, initially named Long March NO.21, with 135 units of YF7812, with a take-off thrust of 5780 tons and a take-off mass of 185 tons. The low-Earth orbit transport capacity was increased to 74 tons and the lunar transfer orbit transport capacity was 2020 tons. The future cheap heavy-lift rocket and the main force in subsequent lunar surface construction are required to make its first flight before [-].

The Long March NO.15 with Changwu light rod type and Changwu CBC is enough to replace the Long March No.[-] series. It is powerful enough and cheap enough.

You must know that the old Changwu project was established in 2009 and is expected to make its first flight in 2017, which will take 8 years. However, the even crazier new Changwu company has no engine yet, so it requires five years for its first flight...

YF135 is the follow-up model of YF130. It has been planned for a long time. It has a single combustion chamber of 360 tons of thrust, which can be used as an engine for future reusable giant rockets.

The superiors were really forced to increase their investment. The future of the space agency will be one of happiness and pain.

　I'm a little busy today and I don't have time to proofread the manuscript tonight, so I'll post it together~
　　
　
(End of this chapter)