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Chapter 299 Commercial Rocket Recovery Company
Guo Yuan was a little surprised when he heard Lin Yumo's words.

He and Lin Yumo went to Bolivia for a little over a month, right?
Why does he feel like he has been away for a year or two?
There are a lot of things on the Future Technology side that he has to deal with, and Lin Yumo's Dragon City Biotech has made a major breakthrough in the things he cares most about.

Thinking of this, Guo Yuan quickly asked, "Yumo, can the head-mounted brain-computer interface already receive all the brainwave signals at a deep level?"

"I dare not say anything, more than 90% are still fine."

"90%? Then the next experiment can indeed be carried out."

Previously, Longcheng Biology's progress on the head-mounted brain-computer interface was stuck in the efficiency of receiving deep-level brainwave signals.

For a long time, Longcheng Biology could only receive about 30% of the deep-level brain wave signals, which is specifically reflected in the laboratory that can only control a certain part of the body.

What Cheng Shuqing experienced in Longcheng Biology was a brain-computer interface with only 30% deep-level brain wave reception efficiency. Only the right hand could be accurately controlled, and other body parts felt nothing.

Now it has reached a signal acceptance rate of more than 90%, and can already control all limbs, but occasionally there will be movement freezes.

This is very good news for Guo Yuan. The next step is to send technicians from Future Technology to connect with Longcheng Biology and conduct related experiments on consciousness uploading.

But before that, Guo Yuan had to contact Director Liu. He had promised Director Liu that when conducting large-scale experiments on head-mounted brain-computer interfaces, priority would be given to disabled soldiers, policemen, and firefighters.

After Guo Yuan hung up on Lin Yumo's phone, he immediately contacted Director Liu.

"What? There is a technological breakthrough so soon?" Director Liu asked in surprise.

"To be honest, I didn't expect Director Liu, but there is indeed a breakthrough in related technology. When will you send someone over there?"

After thinking for a while, Director Liu replied, "The first batch will arrive in about three days."

"Okay, I will communicate with Dragon City Creatures."

After arranging the experimenters, Guo Yuan called Wang Hui, Zhao Liyi, and Xun Haoran over.

"Just now I received a call from Mr. Lin. She said that our head-mounted brain-computer interface technology has made a breakthrough. I plan to"

Guo Yuan told the three of his thoughts.

Zhao Liyi and Wang Hui were quite calm, but Xun Haoran couldn't sit still: "Boss, boss! Let me lead the team! I want to match."

"Haoran, why are you so excited?" Zhao Liyi asked.

"Brother Zhao, this is a head-mounted brain-computer interface! This is too cool! I always thought." Xun Haoran crackled a lot of reasons.

"Stop, stop, stop! It's almost done! Since you want to go, then go! You are in charge of making arrangements for Mr. Zhao's accompanying technicians." Guo Yuan interrupted Xun Haoran and made a decision directly.

"Thank you boss, I'll go back and get ready." Xun Haoran ran out excitedly after speaking.

"Boss, I'll go and see him." After speaking, Zhao Liyi followed him out.

"Hao Ran is still not steady enough!" Wang Hui said.

"A man will be a teenager until he dies! Not to mention that he has always been more interested in this kind of stuff."

"That's right, by the way, boss, I have something else to tell you." Wang Hui changed the subject.

"what's up?"

"Do you know zk aerospace?"

"I've heard that it's the one that claims to be Huaxia's own commercial aerospace company, right?"

"Yes, at the beginning of April this year, just before Musk tested the starship, they also carried out a demonstration test of vertical recovery at sea, and their evaluation was quite high."

Guo Yuan curled his lips when he heard the words. In his opinion, this test is too childish. Aerospace companies use turbojet engines for testing, which can only be regarded as model airplanes or even toys. It is obviously false propaganda and abuse of patriotism.

Turbojet engine, also known as jet engine, is mainly used in aircraft and cruise missiles.From a visual point of view, the turbojet engine, like the rocket engine, is powered by jetting backwards.

But there is an essential difference between the two, that is, the rocket has its own fuel and high-efficiency oxidizer, with high thrust, and it also works normally under the vacuum conditions of space.

The turbojet engine needs to inhale air to ignite the propellant jet, and it cannot work at all without the dense atmosphere. It is a purely in-atmospheric engine.

The turbojet engine consumes fuel quickly and is not efficient at low speeds, but the aircraft model doesn't need to care much about the range.

Therefore, many aviation enthusiasts buy small turbojet engines to make models, and also make vertical take-off and landing models.

As an aerospace company, Zk Aerospace buys turbojet engines for testing. Isn’t this playing model airplanes?
Wang Hui saw what Guo Yuan was thinking, and he said with a smile: "Boss, I know you think their experiment is too childish."

"Isn't it child's play? No matter what experiment ZK Aerospace wants to do, it must not be called a rocket."

"Boss, ZK Aerospace's promotional articles on its official account can be seen as a word game. The company emphasizes that it has made a "principle prototype" of "rocket vertical recovery at sea", with the purpose of simulating rocket recovery, but avoided it. Whether the device itself is considered a "rocket" is a question.

This seemingly ingenious cutting, legally avoids the responsibility for commercial fraud, and has an explanation to shareholders and even representatives of state-owned assets. I think they are quite powerful. "

Guo Yuan rolled his eyes when he heard the words. In his opinion, this kind of article is like self-promotion. Every word and every word is declaring that he has developed a vertical take-off and landing rocket, which is obviously openly discriminating against the IQ of ordinary people.

"Why did Mr. Wang suddenly mention this parallel import company?" Guo Yuan asked impatiently.

"Boss, there is a company that is doing similar things recently, but they are obviously more professional than zk aerospace, and the purpose at this stage is not rocket recovery, but private satellite launch, I think we can mix it up .”

Guo Yuan became interested when he heard the words: "What company?"

"I asked 02 to send the information to your tablet."

Upon hearing this, Cheng Shuqing opened the tablet, found the information Wang Hui said and handed it to Guo Yuan.

After a quick review of the information, Guo Yuan said: "It is true that Feikong Aerospace Technology Co., Ltd. is different from ZK Aerospace, and it seems to be a company that does practical things.

Unlike zk aerospace's experimental model, which is directly made into the shape of a rocket, it is meaningless in principle, but the intention is obvious in publicity.

It may be worried that ordinary people will not be able to see that this is a vertical take-off and landing rocket. ZK Aerospace also deliberately imitated Musk's Dragon spacecraft and made a high-quality imitation model on the top of the rocket model. "

"Boss, the people in this company actually decided to set up their own company after seeing the showy operation of ZK Aerospace.

Their boss said that in March 21, after ZK Aerospace tested a prototype similar to that in April this year, they were interviewed by local media.

At that time, ZK Aerospace's own technicians said that this thing was like a model airplane, but now they publicly say that it is a recyclable rocket, which is quite funny.

Compared with the 2021 model, the model they produced this year has added a load on the head to simulate a rocket storage box, which has made some progress.

But if you just stay at this level, the difficulty of development is not obviously more than that of college students' competitions.Now there are similar toy products even on Taobao, which can also take off and land vertically, and the price is less than [-]. Of course, the size of the model of ZK Aerospace is much larger. "

"How much investment does this company need?" Guo Yuan asked.

"At this stage, 2 million is needed. They have already carried out some rocket launch experiments. At the same time, they have also carried out high-precision navigation and positioning, online trajectory generation guidance, complex environment adaptive flight control, initial alignment of offshore shaking platforms and long-term The relevant technology tests that have been tracked, and the potential stocks are well established." Wang Hui made another wave of this company.

Guo Yuan also heard that the company's current test focus is not the rocket itself, but the rocket's guidance, navigation and control system, referred to as GNC.

Just Guo Yuan has a good impression of this company. The predecessor of this industry, Musk, has already mentioned the importance of the GNC system when his Falcon 9 was successfully recovered.

According to the data verified by Musk, if the first-stage rocket wants to complete the vertical recovery, the accuracy of the landing point must be within 10 meters, the inclination angle of the landing attitude should be within 5 degrees, the lateral speed of landing should not exceed one meter per second, and the vertical speed should not exceed Two meters per second, this is the problem that the GNC system is responsible for.

But after all, the rocket is first and foremost the thruster that sends the load into orbit. In addition to the GNC high-precision control system, the vertical recovery rocket also needs to be fully modified inside the rocket.

For example, when a rocket is launched, the propellant is held in a storage tank by gravity.But during the descent, the propellant will float in weightlessness, which is completely different from when there is gravity, and the propellant management mode must be redesigned.

Vertical recovery cannot be smashed on the ground. The rocket engine must continue to provide power, so the thrust must be changed in a wide range, and the thrust must be dynamically adjusted to match the propellant consumption.

Finally, when the rocket lands, although the speed is already very slow, it will still produce a great impact. The landing buffer device is also very critical. It must be able to prevent dumping, protect the rocket structure, and not be afraid of the high-temperature gas emitted by the rocket engine.

These technologies are all closely related to the GNC system.

"How many shares can we get if we invest 2 million?" Guo Yuan asked.

"35%."

"Is the valuation of this company so high?" Guo Yuan asked with a frown.

"Boss, you don't know. You can count the domestic companies that can launch rockets with one hand. They are the only ones that have made some achievements except ZK Aerospace."

"Don't mention zk Aerospace. It has been five years since it was established in 2018. Apart from model airplanes, have they ever built real rockets?" Guo Yuan couldn't help but complain.

"Boss, let me tell you something. ZK Aerospace really built a rocket, which is the solid rocket "Li Arrow No. [-]".

But there is an upper limit to the indicators of solid rockets. Testing a complete recovery technology with a solid motor is like testing the ability of a car to transport goods. If you want to compare it with a truck, even if you barely catch up, no one will really pay for the technology. "Wang Hui said.

Guo Yuan nodded. Recyclable rockets built by any country are not for the purpose of recycling. The primary purpose must be to save launch costs.

In terms of development potential and cost reduction space, liquid rockets completely overwhelm solid rockets.

Let’s look at the development potential first. The solid rocket fuel is pre-installed in the rocket, and the manufactured rocket has to be transported to the launch site according to the full launch weight, and then erected. This determines that the solid rocket cannot be too large, and the take-off weight is generally only a few. Ten tons, some can reach more than 100 tons.

The liquid rocket can first erect the rocket itself, and then refuel at the launch station, so the take-off weight can reach several thousand tons or even tens of thousands of tons.

Looking at the cost again, the specific impulse ratio of liquid fuel is significantly higher than that of solid fuel, and the overall cost of fuel is only 1/30 of that of solid fuel.

If recovery is really achieved, the liquid rocket has been overhauled and maintained, and it only needs to be refueled to achieve complete reuse.

After the solid rocket is recovered, it is much more troublesome to deal with, and the rocket charge must be reprocessed.

In the 90s and [-]s, the U.S. space shuttle made dozens of parachute recovery and reuse of solid boosters, but the economic benefits were not good, which proved that there was no need to develop recovery technology for solid rockets.

And after the verification of Musk, a senior in the industry, it can be said that liquid reusable rockets are the only correct answer to the long-term development strategy of commercial aerospace.

No matter how good or not the previous solid rockets of zk aerospace company were built, they could not be used to develop recyclable technology. Even they themselves have always pinned their hopes on the liquid rockets that have not yet been built. Since it is meaningless to recycle solid rockets.

As for why ZK Aerospace insists on developing a solid rocket that may not be used in the future?
Nine times out of ten it is to prove their own strength to investors.

"Is Feikong Aerospace doing research on liquid rockets?" Guo Yuan asked.

"We are doing it, and we have already burned a lot of money, so there is a funding gap, and we urgently need financing."

Guo Yuan was a little surprised when he heard the words. Although liquid rockets are easy to use, the technical threshold is much higher than that of solid rockets.

Many commercial aerospace companies dare not take the risk of liquid projects as soon as they come up, so as to avoid the project cycle being too long, which will affect financing and cash flow.

Specifically, the number of parts of a solid rocket is only tens of thousands to 10,000+, while that of a liquid rocket is tens to millions. The difference in the number of parts is four or five times, and the complexity in three-dimensional space is dozens of times worse.

When this is implemented in R&D and production, it means that the division of labor is more detailed and the process management is more complicated. Once a general problem occurs, it is more difficult to troubleshoot errors.

Considering the domestic supply chain situation, it is difficult to coordinate the number of component suppliers. At present, the domestic aerospace supply chain is highly dependent on enterprises within the system to provide support, and the awareness of production enterprises to cooperate with the market is very poor. Aerospace enterprises cannot enjoy the benefits of Party A at all. Treated by service.

Considering these difficulties, when domestic commercial aerospace companies develop rockets, they usually make a usable solid model first, prove their own strength, prove that they are eligible to enjoy the coordination ability of the government's additional support, and then finance the development of liquid rocket models.

It's rare to see a stunned young man like Feikong Hangtian!

But because of this, Guo Yuan became more and more interested in aerospace, and he directly made a decision: "Mr. Wang, we voted for this project!"

(End of this chapter)