The military-industrial scientific research system of the academic master.

Chapter 594 "Refreshed" NH90 (4K)

Zhang Jiujiang's words actually contain two meanings.

First, I will definitely have high standards and strict requirements in training and learning, and I will be merciless;
Secondly, I will definitely take care of things other than these two items.

"That's fine, that's fine."

Chang Haonan nodded and replied with satisfaction:
"Master Yan produces great disciples, so my sister-in-law will ask Instructor Zhang..."

He could naturally hear the implication of what Zhang Jiujiang just said, but he didn't say any nonsense about not needing to be taken care of——

It would have been fine if he had just met Chang Jiayao like a normal student parent, but now after what happened just now, it is no longer possible to keep a low profile.

Regardless of whether he said this or not, it was impossible for the school to be completely indifferent to Chang Jiayao.

In this case, saying more words would seem pretentious.

For a while, neither of them spoke again.

And it was impossible for Chang Haonan to rush to explain on his own.

Compared with the boring and boring teaching building or office building we just saw, this building looks more modern.

"This is our college's new activity center. It is currently the only indoor activity venue that is open to students for a long time after the afternoon classes. There is also a good restaurant inside."

As he just said, Chang Haonan only waited in the hall for about five minutes when he saw two female trainees with short hair and wearing air force spring and autumn uniforms walking up the steps quickly and pushing the door in from the outside. .

No matter how funny it is, they will never laugh.

"Are you feeling overwhelmed by the burden of work?"

Chang Haonan said and walked into the activity center.

Unless you can't help it.

After all, Chang Jiayao is still a girl at heart, and she has only been in school for less than a year. After seeing Chang Haonan, whom she had not seen for more than a year, she ran straight over without caring about too much image or regulations.

Chang Haonan rolled his eyes helplessly.

Chang Jiayao came to Chang Haonan. Fortunately, she still had the last bit of reason left and did not jump directly into the latter's arms.

"Brother, I thought you had forgotten me..."

At least part of the facade in the middle of the building has a glass curtain wall, which already looks a bit 21st century.

"I won't disturb your brother and sister's communication. When you need the car again later, just go to the service desk and call my office."

But years of discipline told him he shouldn't ask such things.

"That's because you've grown taller during this period. You used to have to look up at me, but now you just have to look at me flat..."

So, in such silence all the way, the jeep slowly stopped in front of a building.

"Well, I'll just trouble you, Director Zhang."

"elder brother!"

Zhang Jiujiang got out of the car behind Chang Haonan and introduced at the same time:

This thing was a bit gratuitous, but Chang Haonan just thought that the other party cared about him, so he answered without much thought:

Logically speaking, even if the faces of brothers and sisters who have lived together for more than ten years cannot be clearly seen, they can be easily identified from details such as body shape and posture.

"I feel like you have become shorter, brother..."

Due to the heavy amount of exercise after entering the flight academy, and the fact that Chang Jiayao is only 18 years old now, she has grown to be almost as tall as Chang Haonan.

Zhang Jiujiang was naturally curious about Chang Haonan's current identity and status.

It was still dinner time, and there were not many people in the hall, so his voice almost immediately attracted the attention of Chang Jiayao and the other two.

With this stance, which was similar to charging, if he hadn't known in advance that the other party was the biological sister of his leader, Zhu Yadan would have even pulled out his gun.

While they were talking, Chang Haonan and Zhu Yadan had already followed Zhang Jiujiang up the steps to the gate of the activity center.

But the training in the military academy can make a person undergo earth-shaking changes in this aspect.

Zhang Jiujiang has arranged things very appropriately.

Zhu Yadan in the back covered her forehead with one hand, obviously having a hard time holding back her laughter.

Therefore, Chang Haonan didn't finally confirm that the one walking in front was his sister until he recognized the other person's appearance.

The latter quickly took two steps forward and helped Chang Haonan open the glass door:
"While waiting in the office just now, I called their life counselor. Mr. Chang, please wait in the lobby for a while."

As guards, they have received strict training.

The military academy, while belonging to the army, is also a university, so neither the schedule nor the management is as strict as a combat unit.

It seemed that he had received the message from the instructor after class and rushed directly from the teaching area.

Chang Jiayao did not continue to stick to it, but looked up and down, and then asked in a hesitant tone:
"Brother...have you been under a lot of pressure lately?"

"Jia Yao!"

For a long time, Chang Haonan had nothing to do with his sister, so he could only quietly take a half step back and put some distance between her.

"How could I forget you..."

"It's okay. I have a lot of projects on hand. Why do you ask this suddenly?"

For a moment, he had some doubts about whether instructor Zhang Jiujiang could train his stupid sister into a qualified pilot.

After a short period of playing tricks, Chang Jiayao finally remembered that they were not the only two brothers and sisters present, and quickly gathered the girl who had just been behind her:

"Brother, this is my roommate, named Liu Yang. Her academic performance is very good. I owe my review of several courses to her..."

Obviously, at this time, she had not realized that her brother had just asked the instructor to be "tough and strict" with her, so she talked about study-related topics without any psychological burden.

"Hello."

Liu Yang greeted Chang Haonan timidly.

Henan accent.

No wonder he is the king of roll kings.

"Hello, and thank you for helping our Chang Jiayao with her studies."

Chang Haonan said and took out a few paper bags from the bag he carried:

"I came here from Shengjing this time and didn't have time to buy any gifts. You can take these snacks back to the dormitory and share them..."

In fact, Chang Haonan feels that this Liu Yang will most likely be China's first female astronaut in the future.

Although this name is really common, if you calculate the age, it should be about the same.

Moreover, the place of origin and education status also match.

While Liu Yang was still hesitating, Chang Jiayao had already received it in his hand with a smile on his face:
"Thank you, bro~"

The latter is a sweet talker who won't suffer any loss anyway.

After collecting the gifts, Chang Jiayao turned her eyes to Zhu Yadan, who had been following Chang Haonan just now:

"Um, brother, is this...sister or...brother?"

In fact, when she first saw Zhu Yadan just now, her first reaction was - what a handsome little brother!

But soon she realized that this might not be her little brother...

I was very confused about this for a moment.

So far, Chang Jiayao still doesn't know what kind of job Chang Haonan is engaged in.

And the latter seemed to have no intention of letting her know.

Therefore, after assessing the situation, Zhu Yadan took the initiative to introduce himself:

"My name is Zhu Yadan, Mr. Chang's assistant."

Speaking like this still reveals some feminine characteristics, so there is no need to answer directly about one's gender.

"Ah, I'm sorry, Sister Yadan... you are so heroic..."

Chang Jiayao continues to travel the world with her sweet words.

"Okay, don't be poor. Let's go. I see there is a small stove in this activity center. I will take you two to eat..."

……

Just when Chang Haonan finally saw his sister.

Beijing, Institute of Computing Technology, Chinese Academy of Sciences.

Liu Hongbo is in front of a supercomputing console, waiting for the last few results of this round of calculations to be generated.

It was similar to the situation when Chang Haonan came here on a business trip two years ago. The reason why he was here was because the 602 Institute in Bingcheng did not have good computing conditions, so he had to ask for help from foreign aid.

It's just that he didn't happen to meet a big guy in the algorithm field like Xu Yang to help solve the problem like Chang Haonan, so basically everything had to be done by himself.

Behind him stood another young man who looked to be about the same age as Chang Haonan.

Wang Zhilin, the young technician who was the first to discover problems with the traditional system of the Dolphin helicopter during the calculation process.

Of course, this person is relatively "normal", and no one can solve all the problems easily.

But Liu Hongbo found out that he had a good foundation, so he was specially brought here as an assistant this time.

Of course, on another level.

Only by dealing with people like Wang Zhilin a lot can the former be convinced that it is not that he is too good, but that his junior brother is too inappropriate...

"Teacher Liu, I still can't figure it out. When you were calculating the design of the entire transmission system, why did you add an additional precise limitation on the performance of the bearing set?"

Looking at the calculation section in front of him and wondering when the results would be available, Wang Zhilin mustered up the courage and asked Liu Hongbo next to him:
"In principle, if this restriction is removed, our calculation amount can be reduced by about 40%."

"Or, if you are worried that the performance of this bearing group exceeds the standard, you can just add an upper limit. There is no need to limit this area to death..."

"Is this..."

Liu Hongbo rolled his eyes slightly.

He wanted to say that I don’t know either. This was something that Mr. Chang specifically emphasized when assigning tasks before.

The latter said at the time that this gear set must use the performance indicators he gave, without any changes.

Other parts can be given a higher degree of freedom.

But in order to protect his image, Liu Hongbo gave an explanation after a period of brainstorming:
"It's because after connecting with the European side, we specifically considered their convenience in the parts procurement process. This bearing set is the core component of the transmission system, which determines the upper limit of what the entire equipment can withstand, so we decided to make a comparison first. safe."

In fact, this explanation was speculated by Liu Hongbo himself and seems to be the most reasonable possibility.

Therefore, it is not difficult to persuade others.

Wang Zhilin's eyes lit up after hearing this:
"This is what you said before. When we design, we can't just care about whether we feel comfortable on paper, but we must also try our best to take care of the production and processing process?"

"That's awesome, Teacher Liu!"

A round of rainbow farts made Liu Hongbo feel a little embarrassed.

He touched his nose and nodded:

"Yes, that's what happened."

"But this is not what I said, it was said by Mr. Chang. He often emphasizes this point when working on projects. A good designer should not only calculate what is on paper, but also consider how his design should be done. Land."

Wang Zhilin looked like he suddenly understood, and then asked:

"By the way, Teacher Liu, I saw Mr. Chang from a distance before, and he seemed to be about the same age as me."

"How come he is so powerful at such a young age?"

Liu Hongbo’s people are all numb——

why?
yeah why?
He really wants to know too?

Fortunately, this awkward atmosphere did not last long.

The last few numbers quickly appeared at the bottom of the calculation log.

"call--"

Liu Hongbo breathed a sigh of relief when he saw this:

"Write down the numbers, and immediately calibrate the overall performance and process parameters of the entire transmission system, and then send this improvement plan to the Europeans..."

According to the agreement at the time, China should be responsible for the technical solutions for the main rotor, front fuselage and transmission system.

However, considering that the NH90 was a semi-finished project that even had prototypes participating in test flights, Chang Haonan directly followed his own general habit of doing projects and asked Liu Hongbo to prepare the most critical transmission system plan first.

In this way, the two prototypes that can be considered scrapped can be used to test the transmission system in advance.

Firstly, it is to maximize the residual value, and secondly, it can also save project time.

Otherwise, if we wait for these three parts to be completed and then test them separately in Europe, it will take at least a few extra months of work.

This operation of squeezing efficiency to the extreme almost burned out the CPU of Eurocopter at the beginning. After hesitating for several days, I finally realized the huge advantages compared to the traditional solution and agreed.

Of course, Chang Haonan actually had a third-level purpose, but he didn't tell anyone explicitly.

The design of this transmission system is of course no problem.

However, considering the special performance calibration of the core bearing group, Europeans will inevitably suffer a loss during the test.

If they were careful enough and caught the problem in time, it should have just been a cracked bearing or something of that magnitude.

And if it is not done in time, it will most likely eventually lead to overheating of the transmission system, or even direct irreversible damage.

If you are particularly aggressive, you may even crash.

In short, the aircraft testing this transmission system will definitely fail.

In this case, using the two aircraft in the scrapped case can at least reduce some losses.

Otherwise, if the newly built new prototype crashes directly due to transmission system problems, Eurocopter will be severely hit and suspend the project, but it will be completely lost.

"Teacher Liu, everything is calibrated. Come and take a look!"

A few hours later, Wang Zhilin raised his head again, pointed at the electronic drawings on the computer screen and said to Liu Hongbo.

(End of this chapter)