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"Mr. Wang! The cause of the damage to the fan blades of the engine has been found, and we have also preliminarily determined why the stones appeared in the engine." Professor Zha said.

"What's the reason?" Wang Bin was also a little puzzled at this time. After all, stones will not appear in the engine for no reason. The most important thing is that the plane is still very high from the ground when it is hit by a bird.

At the same time, according to the data of the previous test run, when the diameter of small stones is less than 3 mm and the hardness is less than a certain level, it is impossible for the tg-s002 engine to cause damage, so it can be judged from this that it was inhaled this time. The diameter of the engine stone is definitely more than three millimeters, and it is also very high in hardness.

But here comes the question, how did these stones run up at such a high altitude?

After hearing Wang Bin's words, Professor Zha said: "Mr. Wang! The cause of these engine damages is just as we expected before. It is caused by stones with a diameter of more than three millimeters and very high hardness.

As for how these stones got into the runway engine, they were not actually rolled in from the ground during take-off and landing. After all, with the height of the improved No. 9 aircraft tg-s002 engine and the ground, it is impossible for the ground to roll in went in.

So there is only one final possibility, that is, the stones that entered the engine were drawn in together with the birds. Presumably, Mr. Wang, you were also removed from the countryside, so I think you must know something about the habits of poultry.

Some poultry will often eat some stones, and among poultry and even birds, not only poultry will do this, in fact, many birds will do this, so this can explain why stones will enter the engine, and Damaged the engine. "

After listening to Professor Zha's analysis, Wang Bin, Qiu Tuan and others finally knew why the engine was damaged, and the next thing they had to do was to replace the blades of the engine.

Immediately, the two technicians of Tiangong Technology began to replace these damaged blades. At the same time, Professor Chi also began to think about how to avoid such incidents from happening again.

As for what Professor Zha was thinking, Qiu Tuan and others naturally didn't know at this time. If they knew, they would definitely be shocked again. After all, the performance of this engine is so good. It is absolutely appalling to make its performance more advanced.

At this time, the air crew and maintenance personnel at the nearby base also heard the conversation between Professor Chi and Wang Bin, and they naturally knew that this accident was all about this one, which made them very concerned about Tiangong Technology. The engine performance is more thoroughly understood.

At the same time, many people are also secretly surprised that the engine through technology can reach such a level,

Unexpectedly, after the fan blade hit a small stone, the blade was still in good condition. Except for the place where the fan blade was hit directly, the blade was slightly damaged, and there were no problems in other places.

If it is another engine, in such a situation, the fan blades will definitely be blown away immediately, causing the entire engine to be scrapped or even explode on the spot.

Of course, this is no longer the first time these people were surprised by this engine. In fact, when the plane just landed and they inspected the plane, they expressed my surprise last time. After all This is the first time they have seen fan blades made of glass!

Professor Chi and others, for the replacement of these damaged blades, it is not just to replace the damaged blades, but to replace all the fan blades on the two engines with new ones. After the bird, and these birds also carry so many stones, if they don't replace all of them, neither Wang Bin nor Professor Po will feel at ease about this engine.

Although Wang Bin and the others are very confident in the blades made of glass produced by their company, they don't think that such an impact will break or fall off the internal glass blades.

However, the material of glass is obviously different from steel and titanium alloys. After being hit by a hard object, it will not be deformed like metal, but will directly crack or fall off, so if you do not Replace all the blades, if there is a safety hazard, the consequences will be serious.

Although it seems very troublesome to replace all the fan blades, if it is other engines, it is impossible to complete every few days or even ten days and a half months, but Wang Bin and his engine replace the blades It didn't take so long, it just took an afternoon.

Professor Chi completed the replacement of the fan blades on the engine of the improved No. 9 transport plane, and on the second day, the improved No. 9 transport plane returned to the blue sky and started a series of test flights on the plateau.

...................................

And Wang Bin, Professor Zha and others, after replacing the blades of the engine, immediately returned to Tiangong Technology. After all, the current situation of Tiangong Technology does not allow them to stay outside for a long time.

At the same time, just a few days after Wang Bin's return, Wang Bin's second rocket of Tiangong Technology, the Tiangong-2 five-ton launch vehicle, finally completed the assembly.

The total weight of this rocket after fueling is as high as 500 tons, and its vertical height has reached a height of nearly 35 meters.

However, it can also be seen from here that Tiangong Technology's rocket technology still has a lot of room for improvement at this time. After all, under the same total weight of the rocket, if the total weight of the official rocket reaches the level of this rocket, other The low-earth orbit carrying capacity can reach at least eight to ten tons, but the low-earth orbit carrying capacity of this rocket is only more than five tons and less than six tons.

Of course, after the final assembly is completed, Wang Bin and the others are naturally preparing to launch the rocket for the first time.

Moreover, since this rocket is the first rocket of this type of rocket produced by Tiangong Technology, Wang Bin and the others submitted the application for launching this rocket as soon as it was produced.

At the same time, after the application was submitted, Wang Bin also immediately called Mr. Qin, the person in charge of the aerospace department, to ask for his opinion.

However, when Mr. Qin heard the news, he was also extremely happy. Although, before that, he had already seen the manufacture of the rocket of Tiangong Technology in the rocket factory of Tiangong Technology, and he also saw it. I've been there, this rocket is a design drawing, but I still have some doubts about Tiangong Technology's ability to complete it within the time they planned.

Now that Tiangong Technology has finally completed the manufacture of this rocket, he is naturally very happy, but he is not happy.

He still suggested to Wang Bin that, for the sake of safety, he hoped that the five-ton rocket of Tiangong Technology could also be launched from the sea launch platform in the South China Sea.

After all, compared with launching from a land launch pad, the safety factor of sea launch is undoubtedly much higher for personnel and so on. Even if the launch fails, apart from the damage caused by the rocket itself, the spacecraft and the launch platform, it will not cause major personnel damage. casualties.