"Huaguo's largest 120-ton liquid rocket engine was tested for 300 seconds!"

The tractor factory caught the slander and threw out a big news backhand.

At this time, although the YF100, which is also a 120-ton class, has been delivered for two years, it has not improved the thrust from 120 tons to 125 tons as it has been in later generations.

The maximum thrust data of the latest K120 test run is 123.5 tons, which is indeed a little bit smaller than the YF100.

Relying on this point, it is not wrong to say that it is the strongest in China now.

The maximum thrust of several other engines in service in the Huaguo Space Agency is only 70 tons, and it was not until the YF130 6 years later, that the prototype of the 500-ton thrust was built, which is the real high-thrust engine that reaches the space power.

It is also said that because the structural design of the DX-1 is very simple, it simply stuffs a high-thrust engine into the first stage, instead of the usual two to four low-thrust engines.

And there is a certain trick, the 120-ton engine itself is not very large, Lucia and Ami both have hundreds of tons of monsters, compared to them this can only be considered medium-low.

But as soon as the biggest news of Huaguo was released, it instantly attracted everyone's attention.

Due to the release of the complete image of the engine test, the voice that originally questioned the Xinyuan No. 1 suddenly disappeared.

More than a dozen people wearing Xinyuan Tractor Factory overalls stood in front of the camera and watched the rocket engine test run together - the video slapped those well-known big Vs in the face.

In particular, I am still staring at the name of "maximum thrust", although it sounds unrealistic, but if you look closely, it seems that it is really like that.

Private enterprises have created the strongest rocket engine in China!

Even the foreign media were surprised and reprinted the latest test video, which brought a lot of heat.

However, the most concerned thing is the small life around the neighborhood and the friends who eat kimchi all day long, and even their official news has reported this.

On the same day, Lin Ju refreshed the panel, and found that the gain changed from negative 1.5% to positive 2.2%, and the effect was immediate.

Also receiving greater attention is the country's space agency.

A few days later, in the final assembly building of the tractor plant, the shell of the rocket was already lying quietly here.

The Xinyuan-1 rocket is relatively small, with a height of only 31 meters and a diameter of 2.5 meters, which is the level of the Long March-2 booster, but the thrust of the latter is only 75 tons.

At this time, all the engines and the main rocket body have been manufactured, and a few parts can also be installed after the main structure is completed.

Due to the investment and personnel support of the Southern Institute of Machinery, the progress of the rocket was about a week ahead of schedule, and there was more time for commissioning and inspection.

When Lin Ju looked at the rocket that was beginning to take shape, his heart was surging, and suddenly Deputy Director Chen ran over and told him the news.

The factory office suddenly received a request for a visit from the Sixth Academy of the self-proclaimed Space Agency, hoping to inspect the K120 rocket engine and possibly carry out commercial cooperation.

The computer officer on duty checked and found that the email address was correct, so he hurried to report it.

Lin Ju was confused, and then went to Du Niang to search for the Sixth Academy, and then found out that the design unit of YF100 was the Sixth Academy!

Is it eyeing the K120? Lin Ju had some conjectures in his heart, but he was not sure.

However, of course, I can agree to the request for a visit, after all, it is a space agency, and people are of a very high grade.

He personally sent a letter of agreement to the Sixth Hospital, but he didn't expect the other party to reply immediately, saying that someone would come to the factory the day after tomorrow.

Lin Ju was a little shocked by this speed, and at the same time thought about how to arrange the visit request, so he asked Guo Shen's opinion.

"There is nothing to say about the Xinyuan-1 rocket, the only thing of value is the K120, which is definitely their purpose. Maybe we can schedule a test run on that day, just in time for a long test run of 550 seconds. ”

Lin agreed to this arrangement, and then waited for the investigation team of the Sixth Academy.

As a result, on the day of the inspection, he found out that the leader of the team was Tang Weitian, an old acquaintance!

"Professor Tang!" Lin Ju looked at the seven or eight young middle-aged teams behind him, and immediately understood Tang Weitian's unit.

"I didn't expect you to be from the Sixth Academy, it turns out that our factory has actually been guided by the Sixth Academy of the Space Administration!"

"Hehe, I also want to say that I don't blame Lin Ju for hiding my identity before, in fact, the cooperation of the Sixth Academy this time was also proposed by me."

Tang Weitian said that he was embarrassed, but there was no embarrassment on his face, it was completely a sign of self-familiarity.

However, the other people in the back had different expressions, and their eyes kept looking around, but Lin Ju saw it in his eyes but didn't say anything.

According to the process, he first took the inspection team of the Sixth Academy to see the first prototype of the trial engine, and Guo Shen introduced the parameters and design ideas.

The two of them in the team of the Sixth Academy were quietly communicating.

"What is the work, this is full flow? Obviously, it looks more concise than our multiple pumps, and the nozzle is also smaller. ”

"I don't know, but the craftsmanship seems to be similar to ours, but the design is really, really very simple, and there are far fewer parts visible to the naked eye, no wonder it can be 700 kilograms lighter than ours, 700 kilograms!"

The man called He Gong looks ordinary, but he is a research institute that is deeply involved in the overall design of the YF100.

In fact, when he heard that a private enterprise had built a 120-ton liquid oxygen kerosene engine, he was very shocked.

In the 90s, Huaguo Aerospace looked at the "poisonous hair" of dimethylhydrazine, which was only 70 or 80 tons of thrust compared to the low pollution, and made up its mind to study high-thrust rocket engines.

The argument of YF100 began from this, and for it, Huaguo Aerospace also bought several RD120 rocket engines from the former alliance, wanting to find a reference.

RD120 is also a liquid oxygen kerosene engine, perhaps after a few years of research, I don't think it's a big problem, at the beginning of the millennium, the YF100 project was established.

Then for 12 years, the project was full of disasters and problems, and it was not until 12 years of delivery that it stabilized.

Needless to say, although the data indicators of the YF100 can only be said to be mediocre, it is a high-thrust engine that can be used.

However, suddenly someone said that there is a private enterprise, and a more advanced and reliable engine of the same level than the YF100 has been built!

If it weren't for Professor Tang who sent the email, He Gong would have wanted to use a hammer to knock on the messenger's sandcan.

On the way here, he had already seen the first test video of the K120, and his heart was even more complicated.

Now listening to Guo Shen's explanation of the design ideas of the K120, I only feel that they have made a lot of stupid mistakes before, and there are "obviously better here!" everywhere. ”

He couldn't help but interrupt the other party and asked, "Mr. Guo, is your engine completely self-produced?" ”

"Of course, just now there's a simplified version of the K30 upper stage engine being built."

Hearing this, He Gong was even more depressed, unable to figure out why other people's success was so easy.

In fact, he also wanted to ask if the K120 was obtained from Aramco Aerospace, but unfortunately this kind of thing can only be thought about, and must not be said.

Later, they were taken to see the 550-second test drive, and when the flames similar to the YF100 erupted, the eyebrows of the personnel of the Sixth Academy were almost twisted.

At the end of the day, everyone from the Sixth Courtyard returned to the hotel in the town with the technical instructions of the K120.

Nine people chartered the hotel restaurant for a meeting, and when the door closed, Tang Weitian's smile that lasted all day finally disappeared.

"Tell me all about it, what's your idea?"

The other seven or eight people looked at the technical instructions in their hands, and when they heard this, they all sighed with sad faces.

"If it's not scientific, it's not scientific! This is certainly Aramco's technique. ”

The people who shouted unscientific expressed the confusion in everyone's hearts, and they nodded desperately.

"That's right, we've been doing it for 15 years, and now we're all changing, and suddenly tell us that someone else just blows it?"

"Full flow, small size, simple structure, and large thrust, these K120s alone are already world-class. I feel that the YF100 will not reach this level no matter how much it is changed. ”

"What did the person who designed this engine think, originally so many parts were all done with one structure, this is not a genius, this is because the designer must have quite a lot of experience in engine design, either Aramco, or the former alliance, no one can do it except them!"

His more than ten years of hard work were easily surpassed, everyone was dissatisfied and complained, only He Gong didn't speak, Tang Weitian turned his head to look at him:

"What is your opinion?"