reborn industrial empire

Damn it, the sentimental old guys are still playing their old tricks, which is just the crowd tactics, but this time they are playing more advanced!

This is the conclusion that Jin Xiaoqiang came to about Russian aero engines after he suddenly realized it. No wonder Mr. Wang looks down on Russian aero engines.

Emotionally, they are still playing the same tricks as they did during World War II. As we all know, during World War II, the German Nazi Tiger tanks were simply a nightmare for the Allies, and even more so for the Russian army in Russia. However, in the end, they were forcibly replaced by the former Soviet Union's T34

The tank was swamped and eventually destroyed.

The reason is very simple. It is that the Tiger tank manufacturing company is very troublesome, because many workpieces require very precise processing, but the T34 tank of the former Soviet Union does not need to be like this at all. Their T34 tank is very simple to manufacture, even

It is not an exaggeration to describe it as shoddy. Compared with the German Tiger tanks, the T34 can be completely rated as junk in terms of craftsmanship and processing accuracy.

But it was such a crudely made tank that completely suppressed the Tiger tank, and even defeated the Germans in the end. What it relied on was quantity.

When the German tanks were still lying on the production line in strict accordance with the production process and had to be inspected after production, the T34 of the former Soviet Union was driven directly onto the battlefield as soon as it came off the tank factory...

As far as the current aviation fighter field is concerned, although it is somewhat wrong to use this description, the general concept is indeed similar.

In the current field of fighter jets, the Americans have already produced the fourth generation, while the Russians and Western European fighter jets are around three and a half generations old. It would be good if we can reach the third generation.

The key that affects the performance of a fighter jet is the thrust-to-weight ratio of your aeroengine, which is the contrast between the peak power that your engine can emit and the weight of your aircraft itself.

A fighter jet with a larger thrust-to-weight ratio will be more flexible in aerial combat and can carry more weapons. An aircraft with a smaller thrust-to-weight ratio will undoubtedly have no advantage in this regard.

Currently, there are many aviation engines with the largest thrust-to-weight ratio recognized in the world, and their thrust-to-weight ratios are all claimed to be up to 10. These include the ej200 mid-thrust turbofan engine of the European Rolls-Royce company, and the French M88 series mid-thrust turbofan engine.

Turbofan engine, Russian al-41f high thrust turbofan engine and American F119 and F120 series engines.

However, the only engines that can actually achieve a thrust-to-weight ratio of 10 are the American F119 and F120 series.

"The means used by European and American aero engines to increase thrust-to-weight ratio is to rely on their finishing methods and capabilities. As we all know, the core difficulty of current aero engines lies in the design of the combustion chamber, how to organize more efficient combustion of fuel

, without hurting yourself. This is the key to the problem. Americans rely on using turbine blades with holes, and this ability to use lasers to accurately drill holes

In terms of power, Americans can be said to be the best in the world. Even the Russians have such technology, but the turbine blades they can produce are far behind those of the Americans. This kind of rotor blades are especially

The blades in the combustion zone are subject to both the power of high-speed rotation and the impact of high temperatures of more than 2,000 degrees. Therefore, they must be made of heat-resistant alloy steel. And when using this material, there are processing techniques

Problem. If your machining is not accurate, the repeatability of the blade shape will be very poor. That is, each set of blades is not exactly the same, which will lead to a decrease in engine performance. Another example is the engine blade. There are many small holes in the blade root, which come out from the turbine shaft.

The cooling air flows to the outside of the blades through these small holes, taking away the heat from the blades. This cooling method requires very precise processing. If you don't have these processing techniques, you can't make these holes, then

In this way, you can only buy your blade manufacturing patent from other countries. The Russian al31f series aero engines have made great progress in machining accuracy, but after their al31f series engines are assembled,

Especially when these turbine blades are working, the gap is still quite large. Americans can achieve almost zero gap. This is the gap between technology and finishing capabilities..."

Through Mr. Wang's detailed explanation, Jin Xiaoqiang finally understood the gap between Russian aero engines and European and American aero engines in more detail.

"In this way, to be honest, the level of Russian aero engines is indeed much worse than that of American aero engines. For example, during high-speed air combat, it is necessary to keep the aero engines in the maximum power output mode.

Operation. American aircraft can last for thirty minutes or even an hour. However, Russian fighter jets can only

If they could persist for five minutes, the Russians began to think about how to ensure that their fighter jets could suppress the American fighter jets within five minutes, so they began to increase the temperature of the combustion chamber to increase the temperature.

Work hard on the direction of thrust. This is different from the Americans who rely on precision machining to make a fuss. But which one is better?

Regardless of strategy, the result is self-evident. It is true that Russian fighter jets may maintain a certain advantage for a period of time, but as soon as this period of time passes, it will be finished. And in terms of cost performance, Russia's combat,

It is indeed incomparable to American fighter jets, because their fighter combat mode requires more fuel.

This consumes more energy, and the combat radius is not as far as that of the Americans. Moreover, if the fighter jets fight in this mode for a long time, it will greatly shorten the life of the fighter engine. This is why American fighter jets are properly maintained.

If it is used, it can be used for more than ten years, but the main reason why the Russian fighter jets are finished after only a few years."

Mr. Wang's explanation was very detailed, and even Jin Xiaoqiang, who was half-empty, heard it clearly and clearly.

"And as far as the current world structure is concerned, peace is the mainstream trend in the future, so the production of aero engines should not only take into consideration future military use, but also civilian use. After all, the civilian market is much larger than the military.

As far as the Russian aero engine model is concerned, their aero engines are not suitable for civilians, but the American ones are very suitable. Take the cfm-56 engine used on the American Boeing 737, its original

The purpose of research and development is for military use

It was developed for fighter jets, but later failed when competing with the F-100, so the F-100 became the military engine for the F-16, and this CFM-56 became the special engine for the famous Boeing 737. After all, Russia

The engine consumes too much fuel, and its lifespan and later maintenance are problematic. It is very problematic to use it for civilian use, but American aero engines are completely different. This is why I say that American aero engines are the right way to go.

The main reason.”

The old man said this in one breath and very coherently. This shows that the old man still has his own opinions on the development of aero engines.

Jin Xiaoqiang also liked hearing what the old man said. After all, any high-end military product will eventually be converted to civilian use if it wants to generate benefits. If you don’t believe it, you can take a look at many of the civilian products we currently use. In fact, they were originally

It is designed and produced for military purposes.

Moreover, the Tianchao aviation market will be quite large in the future. If I can wander around in this field besides making cars, it would be a good choice. You must know that at the Haizhu Air Show in a few years, just

The transaction amount of one terminal is so small that you don’t have to make a lot of money by yourself in the automobile field for a year...

"Our Chinese aviation engine has not been around for a long time, and our own technical level is weaker than that of Russia and the United States, so I have no objection to taking the imitation route. After all, this is also the general trend now and is forced by the international situation. But if it is really just

Take the path of imitating the Russian family

Line, I strongly disagree, for the reason I said just now, it is not the kingly path after all. Even if we can make an aero engine at the same level as Russia in the future, its lifespan, its fuel consumption, and its stability

Safety and subsequent maintenance are all big problems. After all, he designed

The principle of design is there. European and American engines do not have to face such problems, so I wondered whether we should also try to follow the European and American aero-engine development route. Although there are many difficulties, I still feel that,

We should persevere, lest the time comes

If the imitation route in Russia fails, we will be completely passive again. And by doing this, we also want to leave some fire for our aerospace engine industry in China, so that everyone can stop focusing on Russian aviation.

On the engine development route.”

The old man's words made Jin Xiaoqiang stand in awe. He was indeed a high-level figure. Now maybe the equipment departments of the entire army are thinking about imitating Russian aero engines. However, in the long run, Russia

Human aviation engines are not suitable for the trend of historical development.

At this time, the old man hopes to lead a group of people to learn the design ideas and concepts of European and American aero-engines, so that we can retain such alternative talents in the aero-engine design industry of China, so as not to fall into another path later.

After reaching a dead end, we have to push everything over again. This is a waste of time and resources that we really can't afford, and we will only be pushed further and further away!

"Okay |! Mr. Wang, I support you because of what you said!" (To be continued. If you like this work, you are welcome to come to (.) to vote for recommendations and monthly votes. Your support is mine.

The biggest motivation.)

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