Courtyard light

Chapter 780 The feeling is coming
In terms of entertainment, "Bang Hai" did not suffer the same embarrassment as other movies in the later stages, where the production became slower and slower as time went on.

However, Transformers and Kung Fu Panda have now become one film every three years, mainly due to the audience's aesthetic fatigue, and also because Liu Hai has to open up a new pit.

There are animated movies like Gundam and Toy Story, which are released every two years, and Liu Hai has also released Ice Age.

Of course, Liu Hai now earns a lot of income from the entertainment industry, mainly from the derivative copyrights of several major IPs.

Game consoles now occupy an absolute majority of the market. The prices of game consoles have dropped due to the development of semiconductors, but only in part. As the game graphics become more and more sophisticated, the prices of some game consoles have increased instead.

Then there is the videotape market, and videotapes are now the mainstream of the market.

When CDs come out, they will become mainstream again.

Liu Hai is also working on the CD project, which is mainly a decoder.

Historically, the reason why domestic VCDs were snatched away by foreign countries was because the decoder patents were foreign.

Foreign Blu-ray high-definition DVDs still have a large market in 2020.

To be honest, the playback effect of this kind of DVD disc is much better than that of most Internet playback.

After all, the clarity of network playback depends on your network speed and the resolution of your display.

Now the movie box office ranks third, and toy peripherals rank fourth.

The main reason is that the game console market is too hot. As for why Liu Hai didn't let other people come up with the creative ideas for these cartoons, on the one hand it was a matter of profit, and on the other hand most of the content and plots were copied anyway, so it didn't matter.

In addition, if you let other people come up with creative ideas, you will have to find time to give them suggestions, which wastes time.

Besides, people are attracted by the benefits of such a huge IP. Some people may do something else when they see the benefits.

Anyway, the creative ideas are now done by ourselves, and the remaining production departments also have separate box offices, and everyone counts their own.

The Flying Motorcycle Research Laboratory. Of course, although it is called the Flying Motorcycle Research Laboratory, in fact, many things inside are far from the Flying Motorcycle.

For example, a flying motorcycle that can fly at subsonic speeds and has a range of more than 2000 kilometers.

This thing is definitely a cruise missile.

Another example is the supersonic anti-sea version of the Flying Motorcycle, which is a supersonic anti-ship missile.

There is also Liu Hai’s latest flying motorcycle with a liquid-fuel rocket engine, but it doesn’t look like a flying motorcycle to the researchers.

The liquid-fuel rocket engine itself has actually already been developed, the key is its brain.

"What are the test results now?" Liu Hai wanted to do the experiment himself, but there was no way.

This test is not a true ignition test, but a test of the sensitivity of the system.

"The sensitivity is still relatively low." said the person in charge.

"Mr. Liu, on the one hand it's a chip calculation problem, and on the other hand it's a sensor accuracy problem. This is still a static test, so it's hard to say whether there's a problem with the engine ignition sensor." The person in charge handed the latest test data to Liu Hai while reporting.

Liu Hai nodded. To be honest, it’s a bit advanced to do this now.

"How about doing an experiment?" After looking at the data, Liu Hai thought that they could do an experiment. If it failed, it would fail.

"There is no problem in doing the experiment. Taking off and hovering in the air are not a big problem. The key is landing." The person in charge of this project in the laboratory can roughly see what this project is used for?
The project manager was unable to comment on Mr. Liu's idea because it was too advanced.

However, I found that it is not impossible to do this project myself, but the technical difficulty is relatively high.

"Then let's do a test. Don't make the altitude too high. Three to five hundred meters will be enough." Liu Hai knew that the most critical thing was to recover that last breath.

Max gave a final shudder and fell to the ground.

This involves the sensors, stabilizers, etc. of the entire system.

Because there is a time difference between the sensor controlling the liquid rocket fuel pump and the thrust change generated by the liquid fuel ejected from the fuel pump.

Moreover, there were big problems with the accuracy of the sensors. The rocket itself was still one and a half meters away from the ground, but its sensors told it that it was still one and a half meters away. The consequence was a huge crash.

Don't underestimate these few dozen centimeters. If something as big as a rocket is squatting on it, the various fuel pipelines inside will be damaged, which is very dangerous.

"Where is the anti-buffer system for this landing rack?"

"This also requires actual testing to test the force data that this system can withstand. If the data is too large, it may cause the center of gravity of the entire rocket to shift..." the person in charge spoke again.

"Then let's find a place to test the current design. I'll report to the factory manager right away."

"But you must be prepared for failure. Now this is just child's play. Later, this rocket will return to the ground from an altitude of tens of kilometers, which is more difficult." Liu Hai said now, the ultimate goal in the future.

"Mr. Liu, don't worry." When the person in charge heard Liu Hai confirm the function of this system, he patted his chest and made a reassurance.

"Okay, get ready here. Remember safety first. If there is any danger, activate the self-destruct sequence immediately."

"Yes." The project leader nodded.

Even though we know that some things will fail, we still need to test them because the data obtained from actual testing is much more reliable than what is currently available in the laboratory.

Of course, this can only be said to be a small gadget now, with a rocket nozzle, and it flies three to five hundred meters high. The overall weight, length and landing height are very different from the final target.

Generally speaking, rocket recovery is basically at an altitude of about 80 kilometers, and the speed must also be controlled when returning to the ground from 80 kilometers.

"Factory Director." Liu Hai came to Sun Aiguo's office.

"Please sit down. What is it that brings you to see me personally?" Sun Aiguo asked directly.

"The liquid rocket engine project team needs to conduct an actual test. They need to find a safe place and someone to operate it." Liu Hai took a bottle of black tea and sat down in the factory director's office, then began to speak.

“What kind of testing ground is needed?”

"It's best to go for the kind found in the mountains, because this thing is quite dangerous. It's mainly a small motorcycle with a liquid-fuel rocket engine. I changed the plan halfway." Liu Hai took the responsibility on himself.

"Liquid fuel rocket engines have many shortcomings. In addition, the fuel is very dangerous, which runs counter to the general development direction of flying motorcycles. In addition, the preparation time of the liquid fuel version is relatively long. The filling of liquid fuel is not something that ordinary staff can do. In addition, there are also problems with storage."

"What do you plan to change it to?" "I have a somewhat whimsical idea, which is to recover the launch vehicle."

"Cough, cough, cough!" Sun Aiguo knew that the carrier rocket, that thing dozens of meters high and several meters thick, needed to be recovered, and he was so scared that he choked while drinking water.

"Look how frightened you are." Liu Hai stood up and patted Sun Aiguo on the back.

"How do you say we recycle them? Collect the scrap?" Sun Aiguo still couldn't understand this, although he knew that the rocket debris would fall to the ground, because the motorcycle factory had previously produced these helicopters specifically to search for and recover rocket debris, because generally these things fell in sparsely populated areas, and after being found, they would be brought back by helicopter.

Plus, although the thing looks big, it is very light, so it is quite dangerous to lift it by helicopter.

"A launch vehicle is generally a three-stage structure. The first stage is mainly responsible for sending the second stage and the third stage of the cargo compartment to an altitude of more than 80 kilometers, and for allowing the second and third stages to reach a speed that escapes the Earth's gravity."

"The main cost of the rocket is the first stage. I mean, the first stage sends the upper part to 80 kilometers, then comes back and lands at our recovery site. The recovered part is then inspected and maintained before being used a second time."

Hearing Liu Hai say this, Sun Aiguo suddenly got the feeling, the kind that seemed to understand after listening, but not completely understood. Every time Liu Hai said this, it was definitely a big deal.

"Oh, so it means that it is equivalent to recycling the most valuable part, and then using it a second or third time later?" Sun Aiguo looked as if he understood.

"That's the ultimate goal, but right now it's just a preliminary test. It will fly at most 100 to meters high and then fall down, and it will still fail %. The main purpose is to collect some data."

"So your current experiment is to send this thing to a height of three to five hundred meters, and then retrieve it?"

"It's probably like this, but because of the data problems with the controller and the control system, as well as the accuracy issues, when it is recovered, it may fall to the ground and explode."

"So we need a safe test environment and professionals to operate it, since liquid fuel is involved."

Sun Aiguo nodded immediately after hearing this: "It seems that we can only ask the higher authorities for help?"

"Just find a professional department, and let them see if our design has a future?" Liu Hai said modestly.

"If you fail, then you fail. What you said has a future. Don't trust others. No one is as capable as you."

"The leader praised me."

"Oh my, I'm going to retire in a year or two, and I didn't expect you to come up with another big project."

"Tell me about this project being successful. What's the point?"

"That's the cost of launching one satellite in the future. We can use it to launch five or even more satellites. After the satellites are launched, they will be sold for very little money."

"This is good, this is good. Satellites are good things."

"This is our experimental plan." Liu Hai brought the plan with him of course, because he knew that the factory director didn't understand it.

Of course, the leaders of the superior department didn't quite understand it, so Sun Aiguo took Liu Hai's plan to the leader of the rocket launch department.

"Mr. Liu, this is really something." The leader of the competent department looked at the plan carefully.

"In fact, our department had this idea before, but we didn't start for various reasons. I didn't expect that you are actually working on it and are about to start testing it." Although the leaders of the competent department did not understand the meaning of the technology, they could still understand it from an economic perspective.

"Xiao Liu's experiment this time is somewhat dangerous. In addition, the current experiment is only a preliminary test. The flight altitude and flight weight cannot be compared with the final goal." Sun Aiguo didn't say anything else, but he still had the ability to understand.

"Of course. I'll ask the people below to cooperate right away." The leader in charge of the rocket launch department certainly knew this.

"Okay, after you are ready, we will discuss it together." Sun Aiguo nodded.

Of course, this plan only mentioned the test plan, and the leaders in charge of the rocket launch department had not seen the actual object, but Liu Hai’s reputation was not mentioned.

The rocket launch department quickly organized a team of capable personnel to form a special group, and the test was arranged in the mountains of Zhangjiakou.

Because this kind of thing is not suitable for testing at a rocket base. It is easy for this thing to fly up, but it may also be easy to fall down.

Bang...Boom!

The rocket launch department prepared a test site directly inside the mountain because it was foreseeable that more than one test would be conducted.

Of course, Liu Hai had no chance of participating in this kind of business, so he let the project leader take charge. Anyway, a lot of the work was done by others.

The rocket engine and the overall hardware and software are all manufactured in the motorcycle factory.

The department in charge of rocket launches responded quickly and completed the test site in just half a month. The project team had also communicated with the rocket engine project team of the motorcycle factory long ago.

The risks involved are still very high. The first is the fuel injection. The fuel tank project team adopted Liu Hai's suggestion and used inert gas mode instead of vacuum mode.

Historically, when we conducted the Dongfeng test for the first time, the projectile body had a dent. This is because the fuel tank is a vacuum, so it will deform under external pressure.

Because we want to recycle it, the deformation of the tank will cause metal fatigue, which is absolutely unacceptable, so inert gas is injected.

The inert gas is injected, and then it is discharged along with the fuel delivery.

This is a completely new technical problem, especially for the rocket launch sector.

There is another problem. If the fuel in the fuel tank is successfully recovered, inert gas must also be injected during the recovery.

Of course, if you come back too quickly and turn to ashes directly on the ground, you don’t need to consider this.

In addition, the overall stability after recycling must be considered. Although the motorcycle factory’s laboratory has a theoretical solution, no one has done a specific implementation.

So even though the test site was built in half a month, we still need to further understand the technology if we want to conduct experiments.

Liu Hai also knows that there are many new technologies, including the coating inside the tank, that is, corrosion-resistant coating. Because liquid fuels are corrosive to a certain extent, if you want to reuse these fuel tanks, you have to prepare for corrosion prevention.

Of course, this project is top secret. The most eye-catching thing now is the J-10 fighter jet, because it takes off more and more frequently. In April, people in the suburbs east of Kyoto can occasionally hear a deafening sound, like thunder.

A lot of chickens and ducks of the farmers there were scared to death. At first, the farmers didn't know what it was and thought it was a dry mine. Later, when the government counted the compensation, they found out that it was caused by a plane flying too fast in the sky.

This time it was confirmed that it was a supersonic twin-engine, two-seat heavy fighter. However, Liu Hai did not understand the attitude of the Western media, because they were praising our military technology, which seemed a bit exaggerated to Liu Hai, but he did not expect that it was almost the same.

"Isn't it to disgust you, Fatty?" Liu Hai looked at the data written in the Western media, which was just short of saying that this plane can beat all of your fighter jets.

(End of this chapter)