Take Off My Aviation Era

However, Success Aviation is in a hurry. Ascendas Group can’t help it. The development cycle of aero engines lies there. It’s not that Ascendas Group wants to get up quickly.

What's more, the difficulty of the medium-thrust aeroengine has risen linearly compared with the previous model. Not to mention, the hx-4-1 core engine has developed to the third generation, and the temperature before the turbine is only 1280 degrees Celsius.

But this temperature has not even reached the minimum index of 6 MW core machine.

It is necessary to know that the performance indicators of the 6 MW core machine developed by Ascendas Group, that is, the engineering model of hx-6-11 medium-sized core machine:

Air flow 11 kg\sec

The compressor pressure ratio is 8.4

The total temperature of the outlet gas of the combustion chamber is 1600~1650 Kelvin

Number of turbine stages 1

Design cycle power 6 MW

Kelvin is the internationally accepted unit for calculating the temperature in front of the turbine. When converted to degrees Celsius, 1600 Kelvin is approximately 1326 degrees Celsius.

In other words, the entry-level standard of the hx-6-11 mid-sized core machine is higher than that of the top version of the hx-4-1 core machine.

And each increase of one degree Celsius of an aero engine requires a lot of investment and experience in materials, technology, engineering, design, and manufacturing. It can't be done by drawing a blueprint.

Because of this, the research and development of the hx-6-11 medium-sized core machine Tengfei Group has started, and it has also been included in the national 863 key development projects and the "Eighth Five-Year Plan" project to give key support.

But this is the case. It will take at least five years to come up with the engineering prototype. If there are twists and turns during the period, seven or eight years are common, and it is not surprising that even more than ten years.

There is no way, just improving the heat resistance of turbine blades is not a good way to surpass it. It requires a comprehensive application of multiple methods to achieve it. It involves several categories and dozens of disciplines, which greatly tests the comprehensive strength of the research unit.

It is precisely that Ascendas Group has serious inexperience in this area and can only work with other scientific research institutes, key universities and other supporting factories. The problem is that many technologies are blank in China. If you want to complete it, you can only start slowly from scratch.

For example, in order to increase the heat-resistant temperature of nickel-based alloy turbine blades, it is necessary to apply a ceramic coating on the surface because ceramics have high heat resistance and can effectively protect the turbine blades from being burned by high temperatures.

However, this kind of ceramic coating is not a ceramic tile at home. It can be formed by burning it in a fire. It needs to withstand high temperatures and must have a certain degree of toughness and strength, because the coating not only withstands high temperatures, but also withstands turbines. Strong centrifugal force during high-speed rotation.

However, ceramic materials are well-known to be fragile. Therefore, how to overcome its fragility, so that it does not fall off when the blades rotate at high speed, does not break, and is easy to process, which can drive experts and engineers in the field crazy.

And this is just a small microcosm of the convenience of various types of technical research on the hx-6-11 medium-sized core machine. The application of integral roulette, compressor integrated bearing, integral blisk, metal matrix composite materials...

Almost everything is an existence that can make people crazy.

So I just want to make Ascendas Group fast, but it can't get up.

Successful aviation naturally knows the actual situation of the Ascendas Group. Although it is impatient, it can only wait. Fortunately, the so-called light fighter project is only a stage of theoretical demonstration. Even if the Pakistani side is determined, the engineering design will take several years to complete. For aviation, time is still too late.

However, the Pakistani military delegation is not aware of these matters. Of course, even if it is known, the Pakistani military will not post it on the Ascendas Group.

Because what they want are mid-level trainers and light fighters with excellent performance, rather than individual aero engines.

What's more, when it comes to the power of light fighter jets, successful aviation hasn't said anything, and the Pakistani military delegation doesn't even have to take a pole.

As for the power of the mid-level trainer, China may not be able to obtain American-made engines for some reason, but Pakistan has a very good relationship with the United States because of the Soviet invasion of Afghanistan. It is only a small thrust engine, and it is not for nothing. As for not giving face, there is no power vacuum problem.

Therefore, during the intensive itinerary of the Pakistani military delegation, there was no visit to the Ascendas Group.

Originally, this matter was finished according to the scheduled itinerary. As a result, Major General Zarif who witnessed the shocking scene of the 15th, as the military attache of the Pakistani embassy in China, was precisely the middleman for the docking between the Pakistani military delegation and the country. Major General Zarif and Lieutenant General Rahman, who led the regiment, were also classmates of the military academy. They were later sent to the United States for further studies. After returning to China, they fought side by side and fought in New Delhi.

The pure iron buddies who went through the window together properly, carried the gun together, and faintly went to prostitute together.

So when Zarif saw Rahman, he began to praise Yun 15 and then talked about the shocking scenes with the photos, and finally fell into the theme, I hope Rahman can go to the Yun 15 production plant to see Look, it's better to order some back.

Rahman can hold it once or twice. After all, the itinerary is set in China. What's more, there are more than 40 people in the entire Pakistani military delegation. They belong to different departments and factions. Although Rahman is a representative The head of the regiment, but the real dominance is not strong, and because of this, Zarif's first few persuasion was blocked by Rahman.

I thought it would be over, and then I went back to my country directly after the itinerary.

As a result, Rahman far underestimated Zarif's perseverance. One or two times would not work, then three or four times. If he did not agree, he would simply treat it as a chanting, and tortured him until Rahman nodded.

That's all, Zarif also took advantage of his familiarity on the ground in China to win over the delegation with Chinese native products that are in short supply in Pakistan.

As the saying goes, the mouth is short and the hand is short. Although it is some local products, it can be said to be a face. What's more, Zarif's request is not excessive. After visiting the successful airline, stop by and take a look at the Ascendas Group.

And the reason is also very formal, to examine the production situation of the replacement power of the lower intermediate trainer.

As for the Ascendas Aviation Power Plant, which does not go to cotton, but the Xiping Plant for aircraft manufacturing, no one cares about these details. Anyway, it is the Ascendas Group. Isn’t it the same everywhere? It's like getting the local produce in your hand, it's not for anyone to use it!

In this way, Zarif relied on his old relationships, old classmates, old native products, and detached status as a military attaché in China, he would just insert an unplanned part of the planned itinerary of the military delegation.

So this was the scene of a Pakistani military delegation visiting Ascendas Group.

However, because the Pakistani military delegation is not monolithic, some people give Zarif face, so naturally they will not buy it. For example, Professor Ali Khan from the Department of Aeronautics and Astronautics of Karachi University of Technology and his two assistants have been against Zarif. The practice sneered.

I feel that this is an internal military transaction. Not only does he oppose the change of the schedule, but he also publicly accused Zarif of using power for personal gain. However, his arms can’t be screwed on his thighs. Professor Ali Khan’s integrity is still not enough for the military, so even Opposition is the same as farting, no one cares about it.

This made Professor Ali Khan helpless and annoyed. Under his anger, Professor Ali Khan, who had not come with him, also came to the Tengfei Group. For nothing else, he just wanted to see Zarif boasted. How did the bubble burst?