The post of "Zhang Daxia" is still topped, and it is on the homepage of the forum. Even the color of the post is flashing, which is very conspicuous. In addition, "Zhang Daxia" is very famous in this forum. As soon as the post is released, many people click in. When they see the content inside, many people cannot calm down.

Anyone who came to this forum has some professionalism. After seeing the content in the post, his eyes lit up. Seeing the photo of the engine being tested on the test drive table, combined with the text content in the post, many people were inevitably excited.

This engine of Tianfeng Technology has a certain reputation in this forum because of "Zhang Daxia". At this time, no one questioned the authenticity. Even when seeing this post, the four words "Tianfeng Technology" will appear in the minds of many people.

It is indeed the engine of Tianfeng Technology Company, the first fourth-generation turboshaft engine in China. Many people were excited and quickly typed and commented.

"Tianfeng Technology Company is awesome, and the engine has actually been tested."

"Yes, and the first verification test run was successfully completed, it's really amazing!"

"Tianfeng Technology, a role model in the domestic aviation industry, and my idol."

"No, I'm a little excited, and my hands trembled a little when I type."

"Brother, I am the same, I finished this line of words in excitement and trembling."

“…”

As soon as the post of "Zhang Daxia" was released, there were a lot of comments, with basically the same content, almost all of which were praiseworthy, and many people expressed their excitement in the posts.

The forum managers have been paying attention to this post. Seeing that this post is so popular, the clicks quickly exceeded 10,000, and then immediately it was 20,000, 30,000. At this speed, the comments went from dozens to hundreds, and then exceeded 10,000.

The forum administrator sighed in his heart that he deserved to be "Zhang Daxia", which is indeed extraordinary. At the same time, the forum administrator also guessed in his heart that this "Zhang Daxia" is, and he can get first-hand information every time, and every time he leaked the latest news about this turboshaft engine.

This forum administrator is also a military enthusiast. He especially likes aviation equipment and is very knowledgeable about engines. He read this post himself and was excited after reading this post. He murmured that if this engine can be successfully developed, my country's helicopter equipment level will reach several levels, and it is not impossible to directly achieve a triple jump.

The post is really very popular, and some of the great masters in the forum have also shown their faces and expressed their opinions.

"Zhang Da, I really admire him. Every time I get first-hand information, this turboshaft engine gives me hope."

"Yes. I hope this engine will be successful as soon as possible and quickly enter mass production."

"This engine is simply tailor-made for our Martial Ten. Our Martial Ten is equipped with such powerful power and performance leaps forward. I am really looking forward to it!"

"This kind of engine can not only be equipped with our Martial Ten. We can also develop corresponding transportation helicopters. With such output power and the transportation capacity of this transportation helicopter, I am really looking forward to it."

"Yes, yes. Such a powerful and advanced turbine shaft engine has great prospects, and can be used for armed helicopters, transport helicopters, and even large civilian helicopters."

"I believe that after this turbine shaft engine, Tianfeng Technology will definitely develop multiple models of turbine shaft engines, which can be used on military transport helicopters and civilian helicopters."

"Yes, at this moment, I also believe that their technical strength can fully develop multiple corresponding models based on this engine."

“…”

This engine from Tianfeng Technology has just completed its first verification test run, and everyone has begun to predict the many models of the turboshaft engine developed by Tianfeng Technology in the future. Everyone has considered it very far.

If this engine is successfully tested and entered production, the core engine part can be unchanged based on this engine, and multiple models can be developed based on the core engine of this engine as a platform.

Because the core machine can remain unchanged and the core machine does not need to be redesigned. Redevelopment on this basis will save much trouble. The technical difficulty is not as large as a new model, and the R&D cycle can be greatly shortened.

In this forum, the post of "Zhang Daxia" has been popular for a long time, and this post has also refreshed the records of this forum, click records, and reply records.

...

Tianfeng Technology Company.

After several days of continuous inspections of each part, the inspection of each part was carried out in a tight and orderly manner, and some problems were also discovered, including several relatively large problems in front of Li Tianfeng.

In the past few days, Li Tianfeng has often been at the assembly workshop, focusing on the inspection of this engine. The first major problem was discovered by Li Tianfeng himself.

Li Tianfeng was still wearing white gloves and holding a magnifying glass, and was carefully inspecting the parts himself. The flame barrel of the aircraft engine is a key and important part. This part has been dimensionally inspected, and no abnormalities were found in the dimension inspection.

All parts of this engine, especially some important and key parts, have been measured and recorded before the first assembly. Now we measure again. After comparing the two measurement data, we can see whether the dimensions have changed at a glance.

The flame barrel is a key part of the combustion chamber, and of course it is the key object to inspect. All dimensions were carefully measured, and the two measurements were carefully compared, and no abnormalities were found.

No abnormalities were found in each size before the test run, and no abnormalities were found in both sizes. Generally speaking, this means that there was no abnormalities in this flame barrel, but Li Tianfeng was very experienced. Even if some important and key parts were carefully inspected, Li Tianfeng would usually look at them carefully and personally again.

Li Tianfeng picked up this flame tube and held a magnifying glass. He looked serious. The flame tube was very thin and light, with many small holes on it.

The surface of the flame cylinder is coated with a thermal barrier coating, which can withstand higher temperatures and have a longer service life. This is a new design and is the first in China.

Of course, there are many such first-in-class technologies in this engine, and they have applied for patents. In this flame barrel, there is definitely more than this domestic first-in-class technology. For example, multi-layer board cooling technology is the first in China.

Li Tianfeng held this flame tube and sat in front of the inspection table, watching carefully and sometimes even picked up a small flashlight, took a closer look, and looked at it carefully. This was no different from an ordinary inspector.

After watching for a long time, Li Tianfeng frowned slightly, looked at a certain part for a long time, and then looked at a small flashlight for a long time. The light from the flashlight was shining, so he could see it more clearly.

"There is a problem here." Li Tianfeng thought to himself, and then looked at other relevant parts and found several similar situations.

"Mr. Qiu, come here and take a look here." Li Tianfeng shouted.

As the chief designer of this engine, Qiu Wenan has been spending a lot of time in the assembly workshop these days, even at night, and usually goes back at least after ten o'clock in the evening.

Hearing Li Tianfeng's voice, Qiu Wen'an immediately put down the parts in his hand and walked over quickly, "Boss, what's the matter?"

Li Tianfeng pointed to the inner wall of the flame tube and found the problem. He said, "Mr. Qiu, look here and find any abnormalities?"

After looking carefully, Qiu Wen'an said with a serious expression: "Boss, there is something wrong with the color of this part, obviously a little darker."

Li Tianfeng nodded, and Li Tianfeng also discovered that there was something wrong with the color here, and he knew why the color was wrong.

When the flame drum is working, the inside is filled with mist fuel and air, and the combustion speed is very fast and the temperature is very high. Under high temperature, the surface color changes will occur after the flame drum is working for a long time. Of course, this color change is normal.

However, if abnormal color changes occur, there is a big problem, which may cause changes in the metallic structure of the flame barrel, thereby changing the performance of the flame barrel, affecting the service life, and in severe cases, the flame may be ablated.

Li Tianfeng pointed to the abnormal colored part and said, "Mr. Qiu, this part must have poor cooling, and the local temperature is a little high."

Qiu Wen'an agreed very much: "It should be like this. It seems that our flame tube needs to be designed to improve certain designs to further improve its cooling performance."

The flame cylinder of an aircraft engine is not allowed to be directly in contact with the flame cylinder, and should be isolated. The flame cylinder of the "tz001" type turboshaft engine mainly involves thermal barrier coating and air film cooling in terms of flame isolation.

Thermal barrier coating means applying a special high-temperature resistant material on the surface of the flame cylinder, and this layer of material does not conduct heat and can insulate well, which should be easy to understand.

The air film is a high-speed blowing air protective film on the surface of the flame cylinder. It not only can isolate the flame, but also blow away heat, which has a good cooling and protection effect.

The flame cylinder cooling of the "tz001" type turboshaft engine can be said to be double-insurance, but there are often big differences between theory and practice. The design theory is very perfect, but some problems arise in the actual process, which is not impossible.

Just like this flame barrel, it is designed very advanced, very reasonable and perfect, and Li Tianfeng also personally checked it. According to the principle, there will be no problems, but the reality and design theory are sometimes not completely consistent, and such a problem is now.

Poor local cooling and high local temperature.

………

Two updates today, the second update will be given. (To be continued...)
Chapter completed!