Courtyard light

Chapter 347 Fiberglass Materials (First Update)
PS: I have something to do, so I’ll write a chapter first, and I’ll write more in Chapter 2 at [-] o’clock.

"But I have made some improvements on the engine!" Liu Hai said very modestly.

When Sun Aiguo heard this, he asked curiously: "How to change it? Increase the horsepower?"

"Change the original radial engine to an air-cooled longitudinal engine." Liu Hai said lightly, but in fact this matter is extremely complicated.

After changing the engine, the overall aircraft structure, the overall resonance coefficient, and the structural force changes. If ordinary people make blind changes, it will only cause disaster in the end.

The Constellation passenger aircraft uses an 18-cylinder air-cooled longitudinal engine, with a single thrust of 2200 horsepower.

Liu Hai also uses a similar model. If you plan to configure a 12-cylinder or 16-cylinder model, you can go back and do the math.

Wait until the next upgrade to a 4-engine transport aircraft before installing an 18-cylinder one.

There are such transport aircraft and passenger aircraft in the country, which are completely sufficient for use, and they are more suitable for the country. In this environment, they will not be wary of the other two bosses.

The mainland is now in the process of starting from scratch. It is not advisable to eat a fat man in one go. History has also proved this.

The key is that Liu Hai just takes out the turboprop engine, and the overall manufacturing of the subsequent aircraft, control system, etc. will take at least several years to complete.

Fast speed means that the stress structure of the entire aircraft has also changed greatly.

Without the integrated forming technology of aircraft beams, the turboprop engine would be a disaster.

The aircraft girder here refers to the circular cross-section. In history, it was possible to transport ten dismounts, largely because this technology did not exist at the time.

An average aircraft has 5 to 6 such beams. Among them, the front and rear of the wings should be more densely arranged, while the rest of the beams should be less dense.

The propeller engine is not needed because its speed does not reach the speed of the turboprop engine.

If the girders on the aircraft are combined, it will not be very reliable. Large equipment on the ground can be combined. If something goes wrong, it will only need to be repaired.

However, if the aircraft adopts a combined type, once something goes wrong, it will be a disaster. Imagine that the aircraft is flying in the air, and the wings of the aircraft are constantly shaking, and the various force changes generated have to be borne by the aircraft girder. The combined type It's easy to go wrong in such long runs.

Liu Hai's words can only fool a layman like Sun Aiguo. Anyone with a little knowledge of aircraft design will have their jaw dropped when they hear Liu Hai's words.

Changing the design of an aircraft is sometimes more difficult than redesigning an aircraft because you don't know what can and cannot be optimized when the original designer designed it.

Of course, it sounds like nothing to Sun Aiguo. It seems as simple as replacing the engine of a car.

"Are you sure?" Sun Aiguo asked casually.

"Try it first. If it doesn't work, change it back!" If Liu Hai's words were heard by other aircraft design experts, they would probably bang their heads against the wall. What do you think you are doing?I just changed a screw and changed it back.

Sun Aiguo felt that Liu Hai was not bragging. After all, aircraft like the C46 have been around for 30 or [-] years, and they are all outdated gadgets.

There is nothing Liu Hai can do to copy this kind of aircraft. After all, there is a growth process, and if this kind of aircraft is revealed, the two big brothers will not be wary.

Of course, if the two big brothers knew that Liu Hai's aircraft could be equipped with Gatling or even cannons, they might not think so.

The load capacity of this aircraft is indeed a bit too small. It is not easy to mount the cannon. It is enough to mount the cannon and Gatling.

This thing can fly to an altitude of 8100 meters, has a Gatling installed in the cabin, and is equipped with thousands of rounds of ammunition.

Anyway, the cost of this thing will not be too high in the end. The bangs are going to use part of the fiberglass technology, which is lighter than the original all-metal structure.

"Do it with confidence and boldness, and take it as a lesson if you fail." Sun Aiguo really wanted to say that there is a wind tunnel in the Northeast, but there are too many tasks there. The wind tunnel in the Northeast was built in 58, and it has a three-meter scale. Yes, but now the research tasks there are heavy and they are running 24 hours a day. It is said that the test tasks have been scheduled for several months.

The meaning of the feedback is very clear. If your motorcycle factory wants to use a wind tunnel, you have to wait until we don’t use it.

Sun Aiguo did not make any demands to his superiors. Sun Aiguo still had a bit of arrogance in his heart.

Sun Aiguo is also afraid that he will force himself to go to the wind tunnel there, which will waste other people's time. In the end, if other people's projects fail, he will not be able to explain clearly.

Isn't it just a wind tunnel?The motorcycle factory can build it by itself, so the motorcycle factory, Kyoto Institute of Technology, and the Institute of Technology in the northwest are cooperating to build a larger wind tunnel in Chang'an. From now on, our factory can use it if it wants.

There is another problem behind this, that is, a man who became a monk halfway through the motorcycle factory actually exported all his aircraft. Some professionals spoke in a slightly eccentric manner, which made Sun Aiguo very uncomfortable.

If Liu Hai knew about it, it would not be surprising at all. Those who design and build aircraft these days are superior to others. As a company that manufactures fighter jets, they have such arrogance.

In fact, there are many people in the research circle, which is one of the reasons why Liu Hai doesn't want to get too close to other people. Of course, it is due to the current social environment.

There is no need for Liu Hai to give up his skills to others, and there is no one worthy of Liu Hai's fawning over, especially the research circle. Of course, this situation is not suitable for Liu Hai to cultivate his own circle.

After a few more years, Liu Hai will have enough strength and time to cultivate his own circle after this gust of wind passes.

Just like a factory, who has more apprentices?Whoever is inside has the loudest voice. The reason why the second uncle was able to become the workshop director in the steel rolling mill was not only because of Liu Hai's relationship, but also because he had many apprentices.

Now in the factory, whoever has more people will make a louder voice. There are three gangs for each hero. This is no joke.

After Liu Hai reported to the factory director, he began to prepare to design the aircraft. Of course, most of the work must be completed in the aircraft carrier space.

"What weapon should be paired with this?"

"Gatling or machine gun?" When designing, Liu Hai must figure out what kind of weapons should be installed in the cabin?
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While Liu Hai was thinking about the plane, the Southeast Asian bully was fighting against North America, and the two were fighting fiercely.

The main reason why North America wants to beat the Southeast Asian overlord is because of geopolitical reasons.

Moreover, the little overlord of Southeast Asia was fooled by the gangster brother in the north of the village, so he decided to form an alliance in Southeast Asia and become the leader of the alliance.

In fact, the big brother in the north of the village deceived the little bully in Southeast Asia. On the one hand, he was trying to contain the influence of the North American big brother in Europe. The second was to target the original die-hard brother. It can be said that he killed two birds with one stone.

After all, the original hardcore brother has now established his own business and is preparing to attack the hardcore brother from the north and the south.

So the home of the Little Overlord of Southeast Asia became an arena for the two eldest brothers to compete, and the fight was fierce.The little overlord in Southeast Asia was beaten back and forth. Fortunately, he had the support of his big brother, but his next door neighbor in the same camp was a bit shameful. He didn't pick up the bricks and rush out like the previous one.

The Southeast Asian bully personally sent his family members to ask for an explanation from his next-door neighbor, but the neighbor agreed to support him.

When the supporting items arrived, he discovered that they were part of the [-]% new equipment sold to him by his elder brother back then, and [-]% of the Gagaxin that he had copied next door.

The little bully in Southeast Asia is so angry that the neighbor next door is equipped with good things, why don't you give yourself these things?
I have seen the equipment of my neighbor next door in recent years, but my neighbor also said that I helped you speak at the class committee meeting, which is a huge honor.

Don't think that the class committee is not a cadre. If the class committee cadres help you, you should be grateful and content.

The little bully was also angry and cursed, but he still wanted to use the things given by the neighbor next door. Finally, he shamelessly asked for a batch of trucks, which were also loaded with grain.

The neighbors next door have no choice but to watch Big Brother North America encroaching on their front door.

Fortunately, the big brother of the little overlord in Southeast Asia is very helpful and will give you whatever you want with airplanes and cannons. The big brother of the little overlord in Southeast Asia also pointed at the former die-hard brother and muttered, "Send things to the little brother from your territory. I didn't expect you to be unwilling. And It’s not about occupying your territory.

The original die-hard brother will definitely not dare to let go of the territory. You must know that all weapons and ammunition are used. What if some people are still on the territory and will not leave?
After finally getting everyone away, how could I let you step on my territory again now?

Although the little overlord of Southeast Asia has the support of his big brother, it is still very difficult to cope with the North American challenge.

The quarrels were fierce every time at the class committee meeting, but the quarrels did not affect the private fights at all.

What makes the little bully in Southeast Asia most unhappy is that the neighbor next door uses a small plane to patrol the border eight times, for fear that people on his side will run over.

In fact, the neighbor next door is clearing out his inventory. After all, he has produced too many old-fashioned weapons.

These old-fashioned weapons are also very popular in third world countries. These weapons can also be exchanged for gold, silver, copper, iron and rubber there. How many industrial products can gold, silver, copper, iron and rubber be produced?

Take the food support as an example. It was imported with foreign exchange, and it was all money.

The reason why so many things were given in history is because there was no market at all. Anyway, the specific value of things that cannot be exchanged for money is not known.

But now if you give a gun, how much does it cost?

If you don't take the overall situation into account, you won't give away a gun, and when you give it, you will give it calculatedly. It is estimated that the loss is almost the same, and then you will give it again, and you will not give too much at one time.

The same goes for food. When you spend money to buy food, you only know how much the food will cost.

The little bully in Southeast Asia hates his next door neighbor in his heart. You have so many squeaky-new trucks, squeaky-looking excavators, and squeaky-good short assault rifles. Why don’t you know how to give them to me?
He talked about giving hundreds of millions of things, but it turned out that they were some second-hand goods bought with a loan from his eldest brother more than ten years ago.

But what makes the little bully in Southeast Asia happy is that he is his big brother, he is really his big brother, and he will give him everything from airplanes and cannons.

By the mid-80s, the Little Overlord of Southeast Asia had received a total of nearly 600 billion in aid from the big brother. Especially since the mid-70s, the annual aid exceeded 30 billion. At its peak, it had 150 million troops. As for why there was so much aid, it was very targeted. It's obvious.

Liu Hai knew some of these things through Sun Aiguo and listened to the radio.

But I know, I know, it has nothing to do with bangs.

In the third month of the lunar calendar in 66, the weather has become warm, and most people have taken off their thick cotton-padded jackets. The colors of people's clothes on the street are still the same, but there are other colors in these colors.

There are white vans and tricycles.

There are red vans and two-wheeled motorcycles.

The blue one has trucks.

Adding colorful scenery to the street, Liu Hai has obtained fiberglass and natural resin.

Experiments are being conducted in the maintenance department. Sun Aiguo is also wearing a mask and glasses. He is very curious when watching the operation of bangs. This new material production method seems so simple.

I also wonder if this new material can be used to build ships?

Glass fiber and carbon fiber are all new materials, and they will be used more and more widely in the future. Carbon fiber technology will be introduced later.

When it comes to the next sports car, Liu Hai will come up with carbon fiber technology. Of course, there are many types of glass fiber and carbon fiber technology. The application environments are different and the types are also different.

Liu Hai directly used fiberglass to make part of the wing of a small aircraft, also using wooden molds.

During the experiment, Liu Hai had already strictly calculated the test parameters. After all, the glass fiber needed to be produced could withstand the pressure on the wings of the small plane when it took off.

This is also a very complex calculation process.

There are many problems involved in the processing process. If it is simple, it is still relatively complicated if anyone wants to study it.

After demoulding the processed mold, Sun Aiguo quickly discovered that the fiberglass material was so hard and relatively light in his hand.

"This material is good." Sun Aiguo is not an ignorant person. Now as a factory director, he has seen more and of course he has learned more.

Liu Hai walked while looking at the usage of his machine and nodded: "This technology has developed well abroad. We need to catch up in China. I suggest that the factory cooperate with other schools to develop this technology."

This is also one of Liu Hai's purposes, to develop and expand his own materials science, but there are too many in materials science.

If you can catch one thing and have time to get bangs, I hope someone can continue along this starting point.

This is the correct way to engage in industry. When Sun Aiguo heard this, he shook his head with a wry smile: "I'm afraid it won't be easy!"

"Then just listen to the factory director." Only then did Liu Hai remember what time it was and that he had been concentrating on doing things just now.

"Can we build a ship now?" Sun Aiguo continued to ask.

"We need to try again." Liu Hai was not reckless. It would be good to try a few more times.

(End of this chapter)