PS: There is something to do, write a chapter first, and I will write more at twelve o'clock in the second chapter.

"But I've improved the engine a bit!" Bangs said modestly.

When Sun Aiguo heard this, he asked curiously, "How to change it?" More horsepower? ”

"The original radial engine was changed to an air-cooled longitudinal engine." Bangs said lightly, but in fact, this matter is very complicated.

After changing the engine, the overall aircraft structure and the overall resonance coefficient and structural force change, if ordinary people change blindly, it can only cause disaster in the end.

The Constellation airliner uses an 18-cylinder air-cooled longitudinal engine with a thrust of 2,200 horsepower.

The bangs are also of a similar model, and you plan to configure a 12-cylinder or 16-cylinder one, and you can go back and calculate it.

Wait until the next upgrade to a 4-engine transport aircraft and then get on the 18-cylinder one.

It is completely enough to have such transport aircraft and passenger planes in the country, and they are more adapted to the country, and now this environment will not be wary of the other two bosses.

The mainland is now in the process of starting from scratch, and it is not advisable to eat a fat man in one go, and history has proved this.

The key is that the bangs are to take out the turboprop engine, and the overall manufacturing of the follow-up aircraft, the control system, etc., will take at least many years to complete.

Fast speed means that the force structure of the overall aircraft has also changed greatly.

Without the integrated molding technology of aircraft girders, the turbo engine is a disaster.

The frame of the plane here points to that circular cross-section, which was historically carried out ten times, in large part because there was no such technology at the time.

The average aircraft has 5 to 6 of these girders, among which the front and rear arrangements of the wings are more dense, and the rest of the area is less.

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 is not very reliable, and the large equipment on the ground can be combined.

But the aircraft adopts a combined type, once there is a problem, it is a disaster, imagine that the plane is flying in the air, the wings of the aircraft keep shaking, and the changes of various forces generated, all of which have to be borne by the aircraft girder, and the combined type is easy to have problems in this long-term operation.

Bangs can only fool a layman like Sun Aiguo, but anyone who has a little knowledge of aircraft design will fall off when he hears Liu Hai's words.

Changing an airplane design is sometimes harder than redesigning an airplane, because you don't know what was optimized and what wasn't designed by the original designer.

Of course, Sun Aiguo doesn't sound like anything, as simple as changing the engine of a car.

"Are you sure?" Sun Aiguo still asked casually.

"Let's try it first, and if it doesn't work, change it back!" If Bangs is heard by other aircraft design experts, I am afraid that I will hit my head against the wall, what do you think this is for? It's a screw, and if you say you change it, you change it back.

Sun Aiguo felt that Liu Hai was not bragging, anyway, C46 has been an aircraft for twenty or thirty years, and it is all old-fashioned things.

There is no way to copy this kind of plane, after all, there is a process of growth, and the two big brothers will not be vigilant when this kind of plane is spoken.

Of course, if the two big brothers knew that Bangs could have a Gatling or even a cannon on it, they might not think so.

The load of this plane is indeed a bit too small, and it is not easy to get on the gun, but the cannon and Gatling are enough.

It can fly up to 8,100 meters, have a Gatling in the cabin, and then equip it with thousands of rounds of ammunition.

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

"Don't worry about doing it boldly, and if you fail, you will learn a lesson." Sun Aiguo wants to say that there is a wind tunnel in the Northeast, but there are too many tasks over there, the wind tunnel in the Northeast was established in 58 years, of the order of three meters, but now the research task over there is heavy, running 24 hours a day, and it is said that the test tasks are scheduled to be a few months later.

The meaning of the feedback is very clear, if your motorcycle factory wants to use a wind tunnel, you have to wait for us to use it.

Sun Aiguo didn't ask his superiors, and Sun Aiguo was still a little arrogant in his bones.

Sun Aiguo was also afraid that he would forcibly go to the wind tunnel over there, delaying other people's time, and in the end, he would not be able to speak clearly when other people's projects were yellow.

Isn't it a wind tunnel? The motorcycle factory built itself, so the motorcycle factory, Kyoto Institute of Technology, and the technical university in the northwest cooperated to build a larger wind tunnel in Chang'an, and our factory could use it if it wanted in the future.

There is still a little problem behind this, that is, the motorcycle factory, which is a halfway monk, actually exported all the planes, and some professional ones are a little yin and yang when they speak, which makes Sun Aiguo very uncomfortable.

If Liu Hai knew, it would not be surprising that those who designed and built airplanes in these years were all superior, and as a company that manufactured fighter jets, they had such arrogance.

In fact, there are also mountains in the research circle, which is one of the reasons why Liu Hai doesn't want to be too close to other people, of course, there are reasons for the current social environment.

There is no need for bangs to give up their skills to others, and there is no one worthy of bangs to stammer, especially in research circles, of course, this situation is not suitable for bangs to cultivate their own circles.

Wait a few more years, after this gust of wind, Liu Hai has enough strength and time to cultivate his circle.

It's like a factory, who has more apprentices? Whoever is in it has a loud voice, the reason why the second uncle can be the workshop director in the rolling mill is that of course there is a relationship with bangs, but more because he has many apprentices.

Now there are more people in the factory, and the voice is loud, and there are three gangs of heroes, which is not a joke.

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

"What weapons should I wear on this?"

"Gatling or cannon?" When designing the bangs, you must figure it out, what weapons are in the cabin?

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When Liu Hai was pondering the plane, the Southeast Asian bully was carrying the handle with North America, and the two were in full swing.

The reason why North America wants to beat the small overlord of Southeast Asia is mainly because of geopolitical reasons.

Moreover, the little overlord of Southeast Asia was fooled by the big brother of the bastard in the north of the village, so he decided to set up an alliance in Southeast Asia and become the leader of the alliance himself.

In fact, in the north of the village, the big brother fooled the Southeast Asian overlord on the one hand to contain the influence of the North American big brother in Europe, and the second was to target the original hardcore brother, which can be described as killing two birds with one stone.

After all, the original hardcore little brother has now set up his own door, ready to give the hardcore little brother a north-south attack.

So the home of the little overlord in Southeast Asia has become a big competition between the two big brothers, and the fight is a tragic one.

The little overlord in Southeast Asia was defeated and retreated, fortunately, with the support of his eldest brother, but the next-door neighbor in the same camp was a little unusual, and he didn't pick up the bricks and rush out like the previous one.

The Southeast Asian Xiaobawang also personally sent his family to the next-door neighbor to ask for an explanation, but the next-door neighbor promised to support it.

When the things supported arrived, I found out that it was part of the new equipment that my eldest brother sold him back then, and twenty percent of the gaga new equipment that he imitated next door.

Southeast Asia's little bully is not good, the neighbor next door is equipped with good things, why don't you give yourself these goods?

The equipment of the next-door neighbor in the past few years is in my eyes, but the next-door neighbor also said that I will help you speak at the class committee, which is a big face.

Don't take the class committee as an improper cadre, you should be grateful and content if you have a class committee cadre to help you.

Xiaobawang also scolded the street angrily, but the things given by the neighbor next door still had to be used, and finally he cheekily asked for a batch of cars, which were still loaded with food.

The next-door neighbor can't help it, he can't watch Big Brother North America enclose land at his door.

Fortunately, the big brother of the little overlord in Southeast Asia is powerful, and the big brother of the little overlord in Southeast Asia also pointed to the original hardcore little brother and muttered, send things to the little brother from your territory, but I didn't expect you to be unwilling, and you don't want to occupy your territory.

The original hardcore brother definitely didn't dare to let go of the turf, you must know that all the weapons and ammunition are used, what if the time comes, and then carry some people to stay on the turf and not leave?

I finally evacuated everyone, how could I possibly let you come to my territory again now?

Although the little overlord in Southeast Asia has the support of his big brother, it is still very difficult to deal with it in the face of North America.

Every time the class committee is very noisy, but the quarrel does not affect the private quarrel at all.

What makes Southeast Asia's little bully the most unhappy is that the neighbor next door also used a small plane to patrol the border eight times, for fear that people from his side would run over.

In fact, the next-door neighbor is clearing the stock, after all, there are too many old-fashioned weapons made.

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

For example, the food that was supported was also imported through foreign exchange, and it was all money.

The reason why so many things are given in history is because there is no market at all, and the things that can't be exchanged for money anyway don't know the specific value.

And now if you give a gun, you have to calculate how much it costs?

If it weren't for the overall situation, I wouldn't give a gun, and when I gave it, I calculated to give it, and it was estimated that the loss was almost over, so I would give it again, and I wouldn't give too much at once.

It's the same with grain, when you spend money on food, you know how much it costs to buy food.

The little overlord of Southeast Asia has a grudge against the next-door neighbor in his heart, you have so many quack new trucks, quack excavators, quack and easy to use short assault rifles, why don't you know to me?

The words about how many billions of things were given, the result was some second-hand goods bought with a loan from my eldest brother more than ten years ago.

However, what makes the little bully of Southeast Asia happy is that he is really a big brother, and he will give everything to the aircraft cannon.

Southeast Asia's little overlord to the mid-80s, a total of nearly 60 billion aid from the big brother, especially since the mid-70s, the annual aid of more than 3 billion, at its peak, 1.5 million troops, as for why the aid is so much, the pertinence is obvious.

Liu Hai knows some of these things through Sun Aiguo, and he knows some about listening to the radio.

But knowing is knowing, it has little to do with bangs.

In the third lunar month of 66, the weather was already warm, most people took off their thick cotton jackets, and the colors of the clothes of the people on the street were still the same, but there were other colors in these tones.

The white ones have vans, tricycles.

The red ones have vans and two-wheeled motorcycles.

The blue ones have trucks.

Adding a colorful landscape to the street, the bangs have been gotten fiberglass here, as well as natural resins.

The test is being carried out in the maintenance department, Sun Aiguo is also wearing a mask, and glasses, looking at the operation of the bangs, he is also very curious, this new way of making materials looks so simple.

I also wondered in my heart that this new material could be made in this way, and it would be possible to build ships?

Glass fiber, carbon fiber these are new materials, in the back of the wider range of applications, carbon fiber technology bangs and so on to come out.

Wait until the next sports car, bangs will come up with carbon fiber technology, of course, glass fiber and carbon fiber technology are also divided into many types, the application environment is different, and the types are not the same.

Bangs made part of the wing of a small airplane directly out of fiberglass, also using wooden molds.

At the time of the experiment, Bang Hai had strictly calculated the parameters of the test, after all, the glass fiber to be manufactured could withstand the pressure of the wing when the small plane took off.

This is also a very complex calculation process.

There are many problems involved in the process of processing, and if it is simple, who wants to study it, it is still more complicated.

After the mold was demolded, Sun Aiguo soon discovered that the FRP material was so hard and relatively light in his hand.

"It's a good material." Sun Aiguo is not an uninformed person, now as a factory director, he has seen a lot and learned more.

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

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

If you can grasp the same, and if you have time to do bangs, I hope that someone can continue to walk along this starting point.

This is the right way to engage in industry, Sun Aiguo heard this, and shook his head with a wry smile: "I'm afraid it's not very easy!" ”

"Then listen to the factory director." Only then did Liu Hai remember what time it was, and he was doing things with all his heart just now.

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

"We're going to have to try again." The bangs are not reckless, and it is good to try a few more times.

(End of chapter)