I'll it, the emotional old Maozi is still playing their old routine, that is, the crowd tactics, but this time it's more advanced!

This is the conclusion that Jin Xiaoqiang came to about the Russian aero engine after he suddenly realized it, no wonder Mr. Wang looked down on the Russian aero engine.

As we all know, in World War II, the German Nazi Tiger tank was simply a nightmare for the allies, and in Russia it was a nightmare for the Russian army, but in the end it was drowned by the T34 tank of the former Soviet Union, and finally disappeared.

The reason is very simple, that is, the Tiger tank manufacturing enterprises are very troublesome, because many workpieces need to be very precise machining, but the T34 tank of the former Soviet Union does not need to be so at all, their T34 tank is very simple to manufacture, and it can even be described as shoddy, compared with the German Tiger tank, whether in terms of technology or processing accuracy, T34 can be rated as garbage.

But it was such a shoddy tank that completely suppressed the Tiger tank, and even finally defeated the Germans for thousands of miles, relying on what it was, relying on quantity.

When the Germans' tanks were still lying on the production line in strict accordance with the production process, and the production had to be tested, the T34 of the former Soviet Union had just been driven directly into the battlefield from the tank factory......

As far as the current field of aviation fighters is concerned, although it is somewhat wrong to use such a description, the general concept is indeed similar.

At present, in the field of fighter aircraft, the Americans have developed the fourth generation, and the level of fighters of the Russians and Western Europe is also about three and a half generations, and it is good that we can reach the third generation.

The key to a fighter's performance is the thrust-to-weight ratio of your aero engine, which is the peak power that your engine can produce and the weight of your aircraft itself.

The higher the thrust-to-weight ratio, the more agile the fighter will be able to perform in aerial combat, and the more weapons it can carry. Aircraft with a small thrust-to-weight ratio have no advantage in this regard.

At present, there are many aero engines with the largest thrust-to-weight ratio in the world, and their thrust-to-weight ratio is claimed to be able to reach 10. These include the EJ200 medium-thrust turbofan engine of Rolls-Royce in Europe, the M88 series medium-thrust turbofan engine in France, the AL-41F high-thrust turbofan engine in Russia, and the F119 and F120 series engines in the United States.

However, the engines that can actually reach 10 thrust-to-weight ratio are actually only the F119 and F120 series in the United States.

"The means used by aero engines in Europe and the United States to increase the thrust-to-weight ratio are based on their finishing methods and capabilities. As we all know, the core difficulty of the current aero engine lies in the design of the combustion chamber, how to organize the combustion of fuel more efficiently, without hurting itself. That's the crux of the matter. The Americans rely on the use of turbine blades with perforations, and this ability to use lasers to accurately punch holes, the Americans can be said to be the best in the world, even the Russians have such technology, but the turbine blades they can produce compared with the Americans, but the gap is huge. This kind of rotor blade, especially the blade in the combustion zone, is not only subject to the power of high-speed rotation, but also subject to the impact of high temperature of more than 2,000 degrees. So it must be heat-resistant alloy steel. And with the same material, there is a processing process. If you don't process it accurately, the repetition rate of the blade shape and surface will be poor. That is, if each set of blades is not exactly the same, it will lead to a decrease in engine performance. For example, there are many small holes in the root of the engine blades, and the heat dissipation air from the turbine shaft flows through these small holes to the outside of the blades and takes away the heat from the blades. This cooling method requires quite precise processing, and if you don't have these processing techniques, you can't make these holes, so you can only buy your manufacturing patent for this blade from other countries. The Russian AL31F series of 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 not small. And the Americans can achieve almost zero clearance, this is the gap in 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 tell the truth, the level of Russian aero engines is indeed much worse than that of American aero engines. For example, in high-speed aerial dogfights, it is necessary to keep the aero engine running at maximum power output. The planes of the Americans could hold out for thirty minutes, or even an hour. The Russian fighters, on the other hand, could only hold out for five minutes, so the Russians began to think about how to ensure that their fighters could ensure that their fighters could suppress the American fighters within five minutes, so they began to work hard to increase the temperature of the combustion chamber to increase the thrust. This is different from the Americans' reliance on precision machining. But in the end, the results are self-explanatory. It is true that for a period of time Russian fighters may maintain a certain advantage, but as soon as this period passes, then it is finished. And in terms of cost performance, Russia's combat is indeed not as good as the American fighter plane, because their fighter combat mode needs to use more fuel, so that it consumes more energy, and the combat radius is not as far as the Americans, and the long-term fighter is fighting in this mode, which will greatly shorten the life of the fighter engine, which is why the American fighter can be used for more than ten years if it is properly maintained, and the Russian fighter is the main reason why it will be finished after a few years. ”

Wang Lao's explanation was very detailed, and even Jin Xiaoqiang's half bucket of water was heard clearly and clearly.

"And in terms of the current world situation, peace is the mainstream trend in the future, so the production of aero engines should not only take into account the future military, but also take into account the civilian use. After all, the civilian market is much larger than the military, and as far as the Russian aero engine model is concerned, their aero engine is not suitable for civilian, but the American is very applicable, take the CFM-56 engine used on the American Boeing 737, his original research and development purpose was to develop for military fighters, but later failed in competition with F-100, so F-100 became the military engine of F-16, And this CFM-56 became the special engine of the famous Boeing 737. After all, Russian engines are too fuel-intensive, and their life and later maintenance are problematic, and they are very problematic for civilian use, while American aero engines are completely different, which is why I say that the main reason why American aero engines are king. ”

The old man said this, but it was all in one breath, very coherent, which shows that the old man still has his own opinions on the development of aero engines.

And the old man's words, Jin Xiaoqiang also likes to listen to it very much, after all, any high-end military products, if you want to produce benefits in the end, will be converted to civilian use, I don't believe you can look at the many livelihood products we use at present, in fact, they were designed and produced for military purposes at the earliest.

And the future of the Celestial Empire aviation market is quite large, if you can do cars, but also in this field of swaying, it is also a good choice, you must know that in a few years later at the Haizhu Air Show, just a terminal transaction amount, but you don't have to make less money in the field of automobiles for a year......

"The aero engine of our Celestial Empire has not started 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 the international situation is compelling. But if it's really just a line of imitating a Russian family, I don't agree very much, because as I said just now, he is not on the royal road after all. Even if we can make the same level of aero engine as Russia in the future, his lifespan, his fuel consumption, his stability, and later maintenance will become a big problem, after all, the principle of his 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 route of European and American aero engine development, although there are many difficulties, but I still think we should stick to it. In case the imitation route on the Russian side does not work, we will fall into passivity again, and I do this to leave some fire for our Celestial Empire's aero engine industry, so that everyone can not focus on the development route of Russian aero engines. ”

The old man's words made Jin Xiaoqiang awe-inspired, and he was really a person with a high enough realm, and now the equipment departments of the whole army may be thinking about copying the Russian aero engine, but it is true that in the long run, the Russian aero engine is not very 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 aero engines in Europe and the United States, so as to retain such alternative talents for the aero engine design community of our Celestial Empire, so as not to have to push everything over again after the other road has entered a dead end, so that we really can't afford to waste time and resources, and will only be pulled further and further away by others!

"Good|! Elder Wang, just for your words, I support you! (To be continued) RQ