Seeing the doorway of this cargo spaceship clearly, Jiang Chen almost didn't laugh out loud. Pen ~ fun ~ pavilion www.biquge.info

Dare these old men directly changed the rocket, quadruple the main engine in the middle, canceled the design of the three-stage rocket, and designed the fuel tank at the bottom of the middle section of the spacecraft, and the upper part is the cargo hold. Although the overall layout has been advanced to the times, the powertrain is still the original chemical fuel engine.

The advantage of this rectangular aircraft is that it accelerates vertically and straight, which can effectively alleviate the load on the aircraft shell during the acceleration phase. But at the same time, the problem arises, this kind of spacecraft wants to make a turn in space, it is troublesome. It's like a toothpick, it's hard to break it when you pinch it and poke it straight at the wall, but when you pinch the two ends, it doesn't take much effort to break it in the middle.

It's okay to make a small turn through the speed difference between the four engines, but if you change the steering above 90 degrees, I'm afraid you have to use the gravitational pull of the planet to complete it. Unless they add a small engine in the middle, but then the whole hull will be too bloated.

Speaking of this engine, Jiang Chen still blushed a little, after all, it was his side that cheated others, and after the space elevator was built, the future of the RM-320 chemical-fueled rocket would basically come to an end. A high-energy storage battery, coupled with a palm-sized block of cesium, has a cruising radius that can top a traditional chemical-fueled rocket carrying two fuel tanks the size of a small house. The limitations of technology are here, and they cannot be solved by simply improving technology.

It's like a bronze knife, no matter how much you hone your forging skills, you can't compare it to a knife made of steel.

"It's not impossible to use chemical fuel engines as engines, but we can only use them for a while, and at most they will have to be eliminated in another 20 years. Non-working fluid propulsion rockets are the general direction of future aerospace development, and it is difficult to eat a fat man in one bite, but we can start with electric propulsion first...... Don't take notes, I'm just saying that. Jiang Chen looked at the big-nosed hairy man who took out the notebook directly from his pocket and began to write, his face suddenly felt a little unbearable, and he hurriedly said.

He really doesn't understand the space industry, and the only role he plays in the Star Ring Trade Space Department is to store the documents from the end of the world to the database of the present world, and each department is only responsible for the affairs of each department, and no one knows who researched these documents.

But he still understands a little bit about the general direction, so he just said it casually. As for the fact that he couldn't help but be scrutinized, Jiang Chen himself was not sure.

Yuri touched the back of his head embarrassedly, "I think what you said makes sense, but we have been studying the principle of work-free propulsion since the Soviet era, but we have not been able to produce any results until now." We have a prototype of an electric propulsion rocket, but the propulsion power is too low, and it is not as good as the carrying capacity of this chemical rocket. ”

"If this is all studied for you, it is time for us to come to your side to learn from it. Jiang Chen saw that this Russian had a good temper, so he also joked with him.

"What is the scriptures?"

However, although Yuri's Chinese is fluent, this spoken language obviously did not learn home, and he touched his head and did not understand that Jiang Chen was joking with him, but asked seriously.

"Uh, nothing, you can understand it as learning. ”

Yuri made a look of sudden realization, but then shook his head, took out a document from his pocket and handed it to Jiang Chen's hand.

"I don't need to learn from the experience, I just want to ask, what do you think of this flying machine? Can it park in the port of Star Ring City? If not, please tell us what are the exceedances of the specifications. ”

Jiang Chen took this dense document written in English and looked at it for a long time and didn't see anything famous, and finally returned it to Yuri.

"I can't give you an answer to this right now, you don't actually have to give me this document, the technicians I brought are dedicated to this task. When the time comes, the parameters of the aircraft will be imported into the computer, and we will use the simulation program to test whether it can meet the safety standards. ”

This time, he came to the Russian Space Corporation, mainly to help them check whether the Grand Duke Oleg could stop at the port of Star Ring Trade. Don't underestimate this program, it's not just a random aircraft that can be transported between the Earth and the Moon, the speed of outer space is measured in kilometers per second, and the losses from accidents are also counted in billions. Even if it is for the safety of Star Ring City, there is no room for sloppiness in this matter.

But this has nothing to do with Jiang Chenzhi, he is mainly here to show his face, after all, this is an extraordinary period, and the real purpose of his coming to Russia has to be concealed. It's like a leader inspecting, the technicians who come with him who really do the work are actually the same whether he is the leader or not.

However, Yuri didn't think so, Jiang Chen's argument that "chemical rockets have no future" simply poked him in the heart. Someone may want to ask, such a simple question Jiang Chen can see even an outsider, can it be that Yuri, an aerospace technology expert who specializes in eating this bowl of rice, still can't understand it?

This brings us to the question of a school of science.

One working fluid propulsion, one non-working fluid propulsion. If you want to say which is wrong, is there a right or wrong thing about scientific research? Scientific research is not a college entrance examination, there is no wrong one, and there is no standard answer. There are two research directions, one focusing on the present and the other looking at the future. Persisting in the development of more efficient chemical-fueled rockets, the RM-300 has doubled its thrust value ratio compared with the Falcon 9 rocket.

Here Yuri actually played a trick, he copied down what Jiang Chen said not to make any notes, but to use his aura to persuade those colleagues who support the continuation of the RM-320, to persuade those bosses who are more optimistic about the cost performance of the working fluid propulsion rocket.

Although Jiang Chen claimed that he did not know anything about aerospace technology and only understood the general direction, who would doubt that what he said was wrong? Many people regarded him as the founder of mankind's second "Age of Discovery," and he had to be compared with Columbus and McZelenna.

Not to mention the Russian Space Corporation, which eats the old books of the Soviet Union, even the director of NASA is here, and he is also copying notes. This is not some kind of academic authority, this is the truth that comes out of practice, what? Have an opinion? It's easy to say, wait until you come out with a space elevator someday!

After copying several pages of notes, the corners of Yuri's smiling mouth were almost to the root of his ears, and he enthusiastically sent Jiang Chen to the door of the car, watching him disappear at the end of the horizon, and then returned to the group building by himself. Even Natasha couldn't help but look at Jiang Chen twice, she really couldn't associate the man in front of her with the word scientist. However, she was really a little unsure of how to take out her notebook as a technical director like Yuri.

"You...... Is everything you just said true?"

"Fooling around, do you understand bragging? Anyway, being idle is idle. Jiang Chen smiled and said, "But don't say it, I may not know much about this basic theory, but everyone in this world can see this general direction more accurately than me." ”

As for why, it goes without saying.

Natasha nodded stunned, not knowing which one to believe him.

After a long silence, she suddenly spoke.

"I'll talk to you about something. ”

"What's the matter, tell me. Jiang Chen looked at Natasha with some surprise, he thought that this chick would not talk to him today, but he didn't expect it to disappear so quickly. And this tone of discussion is really not like what can be said by her big grinning temperament.

After a moment's hesitation, Natasha spoke.

"Cocktail party in the evening...... Can you go on your own?" )