Courtyard light

Chapter 381 Something is wrong (second update)
"In other words, they can't succeed?" Sun Aiguo finally understood the meaning of Liu Hai's words.

"You can't say that, I'm not optimistic about it anyway." Liu Hai replied with a smile.

Sun Aiguo also understood, shook his head and said: "I felt something was wrong when I heard the news. If it is really that easy, it is impossible to say that they can't build a helicopter."

"And I think they should first understand the engine technology thoroughly, rather than blindly launch a new aircraft first."

"Let's start with the power system first. In addition, you have given us so much material technology, as well as the design of the whole machine. You should have a thorough understanding of the technology, and then take your time."

"But the current trend is like this, and there are not many leaders who understand the truth."

Liu Hai nodded at Sun Aiguo's view. Sun Aiguo has not been the factory director for so many years. He knows that upgrading industrial products is definitely not that simple. The things involved are too complicated.

Because the motorcycle factory once led the upgrade of various construction machinery, a simple excavator upgrade factory's technical department people would be blinded. If it weren't for the bangs, they wouldn't be able to do it at all.

Not to mention more complex helicopters. If another factory has enough strength, it will not produce helicopters made by motorcycle factories.

It is precisely because of insufficient strength that we produce helicopters developed by motorcycle factories. Now we want to use the technology provided by motorcycle factories to make new helicopters. Just think about it and you will know how difficult it is. It is not something developed by yourself. If you want to How difficult it is to understand the technology inside.

"Actually, it doesn't matter. Failure also comes with experience, and it can also make people understand the difficulty. Otherwise, other factories will think that it is so easy for us to copy something." Sun Aiguo laughed again after finishing speaking.

Liu Hai did hear something else in Sun Aiguo's words. He knew that Sun Aiguo actually didn't want to hand over the helicopter manufacturing project, but there must be something mentioned above.

"They do their thing. When I build the transport plane here, we will develop helicopters and armed helicopters." The old and American armed helicopters have already come out, and Liu Hai is also planning to start developing armed helicopters in the 70s.

"That's good, that's good!" Sun Aiguo was of course very happy when he heard this.

When Sun Aiguo walked, his steps were much brisker.

Liu Hai waited for Sun Aiguo to leave and continued to do his own thing.

It's not that Liu Hai doesn't want to fly on a large turboprop aircraft, but that there is simply no way to manufacture the components for a large aircraft.

A 4.5-ton molding press is needed, but our country has not yet succeeded in producing a [-]-ton press, and a [-]-ton press can barely make a fighter jet.

What many people don’t know is that the largest pressure-bearing parts of modern Airbus aircraft are made using molding machines in Russia.

There are many parts of an airplane that bear force, and the landing gear is one of them, followed by the wing spars and the part where the engine is mounted.

These require a minimum 4.5-ton molding press to manufacture.

When Liu Hai passed through, the overall height of our 42-ton molding press exceeded 27 meters, 15 meters above ground, [-] meters underground, and the overall weight exceeded [-] tons.

Why is Russia's aircraft manufacturing industry relatively developed?It's because they are much more advanced than us in this regard.

Xiong Guo had two 61-ton molding presses before 7.5, but we only produced an 2012-ton molding press in [-].

At the time Liu Hai crossed over, there were seven molding machines in the world with a capacity of over 4.5 tons.

Two in the United States are 4.5 tons, two in Russia are 7.5 tons, one in France is 6.5 tons, one in Germany (made in the United States) is 6 tons, and one of ours is 8 tons.

Of course, it also depends on the maximum molding size of the single body. When the bangs pass through, it seems that we are the largest.

This is why Liu Hai installed the engine in the middle of the aircraft wing, because the piston engine is not suitable for hoisting.

Even the landing gear bangs are prepared to be piled with materials. Fortunately, the piston engine is not fast and its endurance during landing is not as strong as that of a jet transport aircraft.

Liu Hai also hopes to be able to build a large passenger aircraft with a turbojet engine, but there is no way. Even if it is designed now, the entire sample is full of loopholes, and it will be a disaster to fly into the sky.

The aroma of barbecue began to fill the air again, and the barbecue workshop of Kyoto Motorcycle Factory started production again.

Under the guidance of Liu Hai, everyone in the maintenance department finally completed the design of the mixer truck and officially started manufacturing it.

The first design was of course a 12-ton mixer truck.

Nowadays, it is unrealistic to install a 30-ton mixer truck, not only due to the road conditions, but also unrealistic to use.

Everyone in the maintenance department is also very excited. The supporting power systems are all ready-made. They mainly integrate various systems.

Liu Hai asked them to build a prototype truck first, as well as a matching mixing station and pump truck. These would be done later.

There are also bulk cement transport trucks, these are explained step by step.

"Wait another two years and let the factory director build a 4.5-ton molding press."

"It's really not possible, we can only pile up materials."

"The most critical thing about a molding machine is the hydraulic system."

"There is also the forging of various parts."

Liu Hai plans to let the motorcycle factory build a 4.5-ton molding press in a few years.

Like the [-]-ton molding press, we succeeded immediately, but we didn’t know the specific dimensions.

The molding machine also depends on the size of the parts that can be produced from a single piece. For example, the largest stress-bearing beam of the Airbus aircraft must be manufactured in Russia because their own molding machine cannot process such a large size.

But there is no rush for the time being. We have to wait until the country has some technical strength before making efforts.

This large-scale molding machine will also be best used to produce drones in the future.

Sun Aiguo knew that the Maintenance Department had begun trial production of cement mixer trucks and came here to take a look.

"The people on your side have been brought out." Sun Aiguo said with emotion as he looked at the busy people in the maintenance department.

"Let's try it out, and try it again if it fails. If they don't do it a few times, they won't dare to do it themselves." Liu Hai is very open-minded. If there are problems in the creation, just solve them.

"You have a very good attitude. You are not like others who only think about success." Sun Aiguo admired Liu Hai's attitude. If the people below failed, they would just accumulate experience.

Liu Hai shook his head and said: "It is normal to fail in research, but it is abnormal not to fail."

When Sun Aiguo heard this, he glanced at Liu Hai: "You are talking to others, right? You have never failed here?"

"That's because my position is relatively low. I know how capable I am. If I try to do something high-end, I will fail." Liu Hai explained with a smile when he heard Sun Aiguo's words. "Actually, sometimes the fit is the best, but some people can't see clearly, and they just keep saying that today is better than this, and tomorrow is better than that." When Sun Aiguo heard this, he thought Liu Hai was right, and Xiao Liu saw it very well. Know clearly what you can do to succeed, so you won't waste time.

"Instead of setting an unrealistic goal and wasting several years, it is better to achieve a lower goal early. The things we make are relatively backward internationally, but they can be used." Liu Hai nodded, this is Times determine it, not only now, but also in later generations Liu Hai has heard of such things.

But there is one thing to say. Most of those who shout slogans now are not very successful, but when the bangs pass through, once the slogan is successful, hehe!That is a mountain of gold and silver.

Sun Aiguo nodded, and the motorcycle factory also started up step by step.

"Don't be too anxious. You are still young and have plenty of time to do research. Don't let yourself get too tired." Sun Aiguo warned Liu Hai again, for fear that Liu Hai would fall down if something went wrong.

Then Liu Hai waved his hand, and Sun Aiguo shook his head after looking at it, and then left.

Liu Hai's work schedule is very tight every day. He basically stops going to the maintenance department, sports car workshop, yacht workshop, and aircraft workshop, and goes to the regular work.

Liu Hai has been looking everywhere while driving to and from get off work recently to see if there are any injured cats or dogs.

The test subjects of drugs cannot be too big or too ferocious. It is best to use cats and dogs. It is best to use two or three animals for comparative experiments.

"It really doesn't work, so I have to be ruthless." Liu Hai decided to take another look, but since he couldn't find a test subject, he had no choice but to use a white rat.

In terms of medicine, Liu Hai has already prepared the ginseng sent by the factory director. About 25 years ago, Liu Hai also found a similar one in the space.

At that time, a comparative test will be conducted with two identical ginsengs.

The courtyard will have radiators installed this winter, which will make it more comfortable. They are cast iron radiators.

In winter, everyone basically stays in their houses after get off work. After all, it’s cold, and it’s not comfortable to snow heavily, so they have to clear the snow.

"The matter of ginseng is still troublesome." Liu Hai read many professional books on the aircraft carrier and found that the test steps required for drug testing are very troublesome. Various comparative tests and toxicological tests must be conducted, even if the properties of the drug itself are not clear. , but the efficacy must go through multiple tests.

Sometimes bangs really want to give up, but I am a little unwilling to do so. Later on, if ginseng is useful, what about heredity?

If there is no way to inherit this effect, then it will not have much effect, but it is troublesome to inherit it. It takes at least several years from planting to harvesting ginseng.

That is to say, Liu Hai has not been very busy recently, so Liu Hai has free time to think about these things.

Liu Hai was reading a book at home and thinking about ginseng. The second uncle opened the door and came in. Liu Hai quickly greeted him: "Second uncle, sit down quickly."

"The only thing missing in your house is someone." The second uncle looked at the interior of Liu Hai's house. It was decorated when he was getting married. This layout is not the best in the whole yard, but it is not the worst either.

Liu Hai chuckled: "Forget it, wait until the wind passes recently, otherwise I won't be able to sleep well."

"This is also the case. Xu Damao and his wife are divorcing." The second uncle said.

When Liu Hai heard this, he poured water for the second uncle and asked, "What's going on?"

After Xu Damao got married, he didn't have many meals with his second uncle and Liu Hai. Liu Hai didn't know exactly what happened, even though Xu Damao still used Liu Hai's car when he went to work.

But Liu Hai didn't care. There were some close friends in my previous life, but after getting married, the relationship gradually faded away, and there were all kinds of problems.

"No one in his family can tolerate other people's words. They haven't been married for several years and there has been no movement. They spend a lot of money on medicines and medical examinations." The second uncle shook his head and said.

The second uncle whispered again: "I wonder if there is a problem in our yard, Lao Yi, Xu Damao, Erzhu..."

The second uncle said this in a low voice because he was afraid that others would hear him. After all, he didn't want to talk about it now.

Liu Hai shook his head when he heard this: "What do you mean by going to the hospital?"

"It's hard to ask directly. Anyway, their medicine jars have never been broken, and you can often see them boiling medicine." The second uncle shook his head and said.

Liu Hai shook his head and said, "That's true, you can't ask others about this."

"And I'm still young. I wasn't criticized in the first few years." Liu Hai added, it's hard to tell about this child. Some people have been married for several years before they have children, and some have been married for more than ten years. Only then.

"Yes, but I do think that Xu Damao and Er Zhuzhu were beaten. You also knew that a few years ago..." The second uncle said again.

Liu Hai nodded: "It's possible."

"By the way, last time you said you would look for injured animals for experiments. Do you want me to help you find them?" The second uncle asked again.

"No, second uncle." Liu Hai quickly refused. You must know that animals carry germs and other diseases, especially those who are sick. Liu Hai has decided to use rats for comparison tests. He gave the rats two cuts and then sutured them for comparison tests.

"Come to my house for dinner tonight." When the second uncle heard Liu Hai's refusal, he didn't ask why. The last time he asked, Liu Hai also refused.

"Yeah." Liu Hai agreed.

I had dinner at the second uncle's house in the evening, then returned home and went to the basement. After a while, the little widow next door came.

"Xu Damao is not a thing." The little woman came to Liu Hai and said.

"What?"

"Xu Damao suspected that having no children was not his problem, but someone else's problem in his family. In front of me, he was willing to pay 200 yuan to find someone to try." What the little widow said left Liu Hai speechless.

"I don't know what kind of person he Xu Damao is. In the past, when the devil in my family was still here, he always glanced at me."

"There are also those stupid things like going to the countryside to show movies." The little widow added.

When Liu Hai heard this, he said, "Stay away from him in the future. This guy has evil intentions and may be deceived."

Once Xu Damao gets this idea, he will never let it go. There is no telling what will happen next. In addition, Xu Damao himself is also a bit disorderly.

"It's very strange in this yard. Several houses are like this."

"Don't go out and talk nonsense, what time is it now." Liu Hai felt something was wrong when he heard this. The second uncle said in the afternoon, and now this one also said, you want to know what time it is now?Is it possible that someone is doing something in the dark?
　The second update is over and we will continue tomorrow. Recently, my waist is really weak and I can’t stand it after sitting for a while. Let’s take it slow first.

　　Mainly the cervical spine and lumbar spine caused by prolonged sitting.

　　
　
(End of this chapter)