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It is no wonder that the Aviation Industry Group has such an idea. Although the upper management has not allocated an extra penny to China Ascendas, and there is no extra financial support, this kind of full, full or even excess US dollar conversion renminbi return is not. It is more effective than the effect of fund allocation.

What's more, China Ascendas' annual profit is between 20 and 30 billion U.S. dollars, and the profit turned in only accounts for about 60% of China Ascendas's foreign exchange profits. It also retains about 10 billion U.S. dollars in foreign exchange profits. This money is free from China. For those who dominate, as long as the fund flow is submitted to the higher-level foreign exchange management department at the end of the year.

In other words, China Ascendas can purchase all kinds of advanced equipment in developed countries in Europe and the United States without restriction. Compared with the Aviation Industry Corporation, it is much sadder. Due to its limited foreign exchange profit, it needs to apply for foreign exchange quota separately if it wants to purchase foreign equipment. , If the time for approval and decision-making is counted, the whole process is cumbersome and can make people directly split.

It can be seen that the upper management still values ​​China's take-off. Based on this, even if the Aviation Industry Group really wants to make China's take-off, its direct competitor, completely attack the street, the maintenance of the upper-level can only converge its edge and let China take off. The aero-engine high-altitude test bed was successfully launched.

However, although the Aviation Industry Group is biased towards the upper level of China's various lemon essences, it also feels that China's Ascendas will inevitably become the life and death enemy of their entire aviation industry group as they continue to develop, but they are fortunate that in the high-thrust heavy-duty aviation engine In the game, the Aviation Industry Group achieved a decisive victory.

Based on this, it can directly establish the basic pattern of the domestic military combat aircraft field in the next 20 to 30 years. China Ascendas can still only provide supporting facilities, and the Aviation Industry Group will continue to dominate as it is now.

The reason why the leadership of the Aviation Industry Group made such a judgment was based on the basic judgment that China Ascendas stepped into the big pit of the aero-engine high-altitude test bench and the long development cycle of high-thrust aeroengines.

It should be understood that the aero-engine high-altitude test rig under the Aviation Industry Group was planned in the late 1950s, and began to be built in the 1960s. The super-large project completed in the 1990s took 30 years to complete the construction cycle. The two generations of people worked hard. Completed the first domestic aero-engine high-altitude test bed.

Especially the complexity and difficulty of this thing can be seen.

Even if China takes off with sufficient funds, it is almost impossible to complete it in a short time. Even if it is overtime, the entire construction cycle will take 8 to 10 years to be effective.

The problem is that by that time, the AL-31 heavy-duty aero-engine imitation project of the Aviation Industry Group has already blossomed. Even if China takes off, it takes 5 years to win the aero-engine high-altitude test bed, but 20 years of development of high-thrust aero-engines. Where is the cycle? Even if China's take-off has a certain foundation on the WD-70, it will take 5 to 8 years to perfect it.

So before and after, there is no generation of time for China to take off without even thinking about any achievements in high-thrust aero engines.

Because of this, the Aviation Industry Group is very irritating for China to take off and launch the aero-engine high-altitude test bed and carry the "Lancang River" model without dismounting, but it doesn't take much to heart, because the basic laws of aeroengines are justified. There, unless it is possessed by aliens, even Americans cannot escape the influence of this powerful law.

However, at this moment, the "Lancangjiang" high-thrust aero engine displayed by Tang Lili on the screen is definitely not a conceptual design, but a mature product that should be tested for a long time, because what is displayed on the screen is not a conceptual design. Conceptual design drawing, but a perspective detail drawing created with real pictures.

You know, it has only been two years since China Ascendas’ aero-engine high-altitude test bed was completed. China Ascendas launched the "Lancang River" project?

how can that be!

However, the surprise, astonishment, confusion, doubt, and disbelief in the venue did not affect Tang Lili’s calm and calm tone on stage. Instead, the remote control was adjusted, and the aero engine on the screen revolved and quickly disintegrated. Finally, a core machine consisting of a combustion chamber, a first-stage turbine and a second-stage turbine is left, and then the laser pointer is placed on it: "Some people may ask, why is our'Lancang River' project progressing so fast? It won’t be high. Here I’ll give you a guarantee. Our WD-72E “Lancangjiang” high-thrust aero engine has a very high level of maturity, because the technologies used in it are all mature technologies that China has soared for many years..."

Having said that, Tang Lili drew a circle on the core machine and said loudly: "For example, our HX-30-27 core machine is a typical third-generation core machine, compared to previous generations of single-rotor core machines. For the third-generation core machine, we adopted a dual-rotor structure and added a two-stage turbine at the rear to increase the overall power of the core machine.

At the same time, through the application of advanced heat-resistant materials and other related technologies, we have increased the temperature in front of the turbine of the third-generation core engine. Currently, it is equipped with the HX-30-27-C of the WD-72E'Lancangjiang' high-thrust aero engine. The front turbine temperature of the core model is 1873.15 Kelvin, which is 1600 degrees Celsius, so that our third-generation core model has a cycle power of 27 MW..."

Before she finished speaking, Tang Lili pressed the remote control in her hand again, and the core machine on the screen was disassembled again. Then Tang Lili lit several parts with a laser pointer and continued to introduce: "The excellent performance of the HX-30-27 core machine is not What new technology we used to build it, on the contrary, many of the materials and technologies are mature products that we have polished and polished for more than ten years in China.

For example, the H-ZB-618 high-performance ceramic matrix composite material used in the combustion chamber is based on the ZBF-600 experimental ceramic material developed ten years ago. The experimental material at that time can withstand a high temperature of 1450 degrees Celsius, and We tested it on our 2.5-generation core machine, and then as our technology in ceramic base preparation and metal support was further improved, the material was officially put into production. UU read www.uukahnshu.com and gave China Tengfei the material name H- The ZB-600 series has been widely used.

The upper tail nozzles, combustion chambers and even turbine discs of the WD-66 series aero-engines used in FBC-7A and F-8E all use H-ZB-600 series ceramic matrix composite materials to varying degrees. On this basis, we summarize the previous H-ZB-600 series ceramic matrix composites. -ZB-600 series use experience and data, developed H-ZB-618 high-performance ceramic matrix composite material with more excellent performance, as the main material of the HX-30-27 core machine combustion chamber, so as to make its combustion chamber It has a continuous high temperature resistance of 1800 degrees Celsius, and the extreme high temperature resistance can reach 2200 degrees Celsius..."

"Comrade Tang Lili, the continuous high temperature resistance of the combustion chamber of the HX-30-27 core engine is 1800 degrees Celsius. The current temperature in front of the turbine is only 1600 degrees Celsius. That is to say, there is still room for improvement of the HX-30-27 core engine?"

Before Tang Lili could finish her words, a navy leader couldn't help but ask. Tang Lili smiled and nodded: "Of course, otherwise the next generation of combat aircraft will have a heart attack again?"

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