Genius is just the threshold for me!

Chapter 136 "Low" Efficiency

Crack—

It was past noon when the lock on the main gate turned once, and Xu Ziming returned from get off work.

As soon as he entered and changed his shoes, Zhou Xiaoyan quietly came out and gestured to him to be quiet.

"What's wrong?"

Xu Ziming took a few steps inside.

Sunlight streamed in through the gaps in the curtains, illuminating a pile of scattered draft papers on the living room table.

Xu Qingling and Lin Dong each sat on a stool. One was working hard on several junior high school preparatory test papers with a pen, while the other was rapidly typing on a keyboard with a notebook.

"Busy all morning?"

Xu Ziming was taken aback by Lin Dong's focused expression and turned to Zhou Xiaoyan to ask.

"They're probably waiting for emails upstairs. Qingling got up, and as soon as the email notification sounded, she started working..."

Zhou Xiaoyan answered softly.

As she spoke, she seemed to have thought of something, turned her head and smiled at Xu Ziming, "Now I understand why you've always disliked Xiao Dong. His way of doing things is completely different from yours."

"What do you mean you don't like him because of this... I never slack off at work, I'm never late or leave early, okay?"

Xu Ziming shifted his gaze from Lin Dong, scanned the living room, and frowned slightly at the already drawn curtains.

"This afternoon, move the HD projector that Qingling uses for playing games to the living room. Turn on the projector when you need to draw the curtains."

If it's Chengdu Aircraft Industry Group's conference room and core office.

The windows are fitted with privacy film or electrically adjustable glass, and the curtains are specially made electromagnetic shielding curtains that can prevent laser eavesdropping, infrared imaging, and the risk of electromagnetic leakage.

The Chengdu Aircraft Industry Group (CAC) family residential area is not as secure, but potential leaks were taken into account during the design process.

The balcony and bedroom window face an open space with no tall buildings or high points for two kilometers to observe. Some core engineers are also allocated housing in mid- to high-rise buildings.

However, since he wasn't home and the living room wasn't decorated, suddenly drawing the curtains would inevitably attract the attention of those with ulterior motives.

"Also, next time he needs to do something, tell him to go to the study. The windows, walls, and floors there have all been specially modified by the security department, so there's no risk of leaks..."

"You always had such a sour face before, how could Xiao Dong dare to enter your study?" Zhou Xiaoyan replied irritably.

"Is there anywhere Chengdu Aircraft Industry Group (Chengfei) wouldn't dare to go?"

As Xu Ziming spoke, he walked towards Lin Dong, wanting to see how this kid managed to take over as chief engineer.

Ding-dong-

Xu Ziming had just walked over when a new email arrived.

[Chengfei Cai]: Engineer Wang, the thermal resistance coefficient of this fuselage component of this shape and size is too high. It will cause severe thermal flutter when entering the thermal barrier. Under extreme conditions, it may cause the fuselage gap to tear. Please double-check and confirm the parameters...

Is there a problem with the parameters used in the experiment?

Upon seeing this, Xu Ziming's gaze sharpened.

As a company specializing in aircraft technology research and development, Chengdu Aircraft Industry Group (CAC) focuses on technology in its work, and there are not many taboos or hierarchical distinctions.

If subordinate departments and laboratories find errors in the work assigned by headquarters, they will usually raise them for verification, rather than simply doing whatever headquarters tells them to do.

Every time a subordinate department raises a question, whether it's a genuine error or a confidential special request, it puts the headquarters' management response to the test.

After all, everyone has a temper and personality; reality is not an ideal model.

If you, as a technical person, keep making mistakes with the parameters, you will definitely lack authority in the eyes of your subordinate labs, and they will gradually treat your arrangements as a joke.

However, if all questions and doubts are suppressed by the confidentiality clause, subordinates will definitely have negative feelings, which will lead to disobedience and resistance, thereby reducing work efficiency and affecting project efficiency.

However, before Xu Ziming could say anything...

Lin Dong found Wang Xingguo's previous replies to this situation in his email, pondered the tone of the replies, and then switched back to the email to start typing a reply.

[Wang Xingguo]: Thermal flutter is essentially a fluctuation in device size caused by thermal expansion, but the high temperature of thermal expansion is mainly generated by the supersonic shock wave surface.

In the overall design, this device does not come into contact with the shock wave surface, and its thermal expansion and high temperature are relatively weak.

Let's take a closer look at the J-20's nose design and also refer to the paper published on the internal network in June of this year, number G201203B78, which describes a data model for waverider design.

You spend all your time in the lab waiting for instructions, and you don't even keep up with the latest technological advancements, do you...? The information on waverider schemes ends with you; please be mindful of confidentiality regulations.

Ding-dong-

[Chengfei Zhou Gong]: Engineer Wang, the parameter test for this flight control system has an error in the calculation of the force change curve of the vertical tail. How come the change has increased so much all of a sudden? The curve has become much steeper.

[Wang Xingguo]: Engineer Zhou, the curve is correct. For details, please refer to the article published at the end of last month by the Institute of Mechanics, Chinese Academy of Sciences, which is the affiliated unit of the JF12 hypersonic shock wave wind tunnel, regarding the changes in test parameters of the hypersonic vertical tail rudder control effect.

Experiments show that when an aircraft enters a hypersonic state, the aerodynamic control efficiency of the vertical tail decreases linearly until it completely fails, while the forces acting on the vertical tail itself increase linearly...

I need to measure the vertical tail of this size, from control to complete failure, and the data on the flight control precision control. Engineer Zhou, you are a senior member of Chengdu Aircraft Industry Group. This test requires a lot of meticulous work, and I can only feel at ease if I entrust it to you.

Lin Dong pressed the send shortcut key, looked at the dozen or so question emails he had been processing, frowned and thought for a moment, then edited a new email.

Send a copy to all the laboratory heads and department heads to be mobilized for this WZ-8 project, including Xu Ziming.

[Wang Xingguo]: We will have a meeting in the main conference room at 9:30 tomorrow morning to discuss the efficiency of project progress.

Ding Dong!

Xu Ziming's secure intranet phone beeped with an email notification.

He didn't take it out to check; he just stared wide-eyed at Lin Dong, then at the emails on the screen, his lips moving slightly but no sound coming out.

...No, is this how you always reply?

Xu Ziming was somewhat bewildered.

But the next moment, he thought about it carefully and realized that there seemed to be nothing wrong with it.

The tone of voice is the same as Wang Xingguo's usual tone.

When dealing with younger managers, Wang Xingguo would offer guidance, criticism, and encouragement; when dealing with senior employees over fifty, he would point things out, treat them with equality, and provide some emotional support. This was a common tactic Wang Xingguo used when communicating and assigning tasks.

The only difference is that in the past, when faced with questions from his subordinates, Wang Xingguo would only give a brief explanation, and if he found it troublesome to explain, he would change to a gentler tone and indicate that it was a special confidential requirement.

With things arranged this way, there won't be any work-related issues for those below.

If they still make excuses at this point, that guy will just call and curse them out, send another formal letter, and if they still resist, he'll just replace them...

But when it came to Lin Dong, without saying a word, he simply threw over a paper number...

If this were done by an administrative department, it might be seen as provocative, with people thinking, "What do you mean by this? Are you implying that I don't understand technology?"

But in the technical department of Chengdu Aircraft Industry Group, in the eyes of researchers and engineers who have spent their lives working on technology, this is an unparalleled trump card, and everyone who sees it must admit defeat.

"Xiao Dong, has the plan for this project been finalized?"

Xu Ziming seemed to notice something at this moment, and his expression showed a hint of disbelief.

The email I just read indicates that we've moved beyond the initial stage of preparing and finalizing the project plan; we're now entering the stage of substantially refining the details of the plan.

But the problem is, this project was just approved last night... and you've already finalized the plan today?

"It's been preliminarily determined that the technical route for hypersonic technology has already been successfully explored by my previous Hot Spicy project, so it's not too difficult."

Lin Dong nodded without paying attention, his tone as calm as if he were asking what he wanted to eat for lunch.

Xu Ziming's expression stiffened for a moment, then he couldn't help but ask, "The 'Hot Spicy' is just a small aircraft, while this project is already a medium-sized aircraft. Aren't there any technical difficulties involved?"

"That's difficult."

Lin Dong pointed to the email with the arrangements: "This isn't an arrangement for them to assist in collecting data for the experiment; I can't handle all this data by myself..."

As for the technical difficulties, this has already been done once, and it doesn't involve any uncharted technical areas, so it's not very difficult.

Although the aircraft has changed from small to medium-sized, the fundamental technology remains the same; the basic principles remain the same despite the changes.

It doesn't involve uninhabited areas, so it's not particularly difficult; the basic principles remain the same despite variations...

Xu Ziming took a deep breath, wanting to grab Lin Dong and ask him how he could say such things so calmly.

It's only when you're in uninhabited areas that it becomes truly difficult.

What have they been doing all these years?

After all, strictly speaking, the J-20 does not venture into uncharted technological territory.

"So this project also uses a waverider design?"

Xu Ziming suppressed his inner complaints, but looking at Lin Dong's reply email, he couldn't resist his curiosity about the technology.

"Yes, in hypersonic conditions, the lift of a conventional wing will decrease linearly, and the control effects of the vertical wing and tail wing will also decrease linearly or even disappear."

At this point, only a waverider design, combined with a vector engine to change the thrust direction, can be used to control the aircraft's flight.

Lin Dong nodded and briefly explained the design of the waverider to Xu Ziming.

The greatest knowledge that people have about waveriders is Qian Xuesen's ballistic trajectory, the famous skipping of stones in space.

However, the Qian Xuesen trajectory is actually a high-speed glide trajectory in space, which belongs to a flight trajectory control theory and does not belong to the shape design of aircraft.

However, using a waverider design makes it easier to achieve this ballistic flight, so missiles such as the DF-17 are all waverider shaped.

A true waverider, as the name suggests, refers to an aircraft that "rides" on a shock wave, much like a sky knight riding a shock wave.

By using the shock waves generated by supersonic speeds to "lift" the aircraft, the problem of lift loss or even disappearance of hypersonic wings can be solved.

At the same time, by using shock waves to tear through the air, drag is reduced, enabling higher flight speeds and longer range.

Sometimes, for special purposes, low-supersonic aircraft also use waverider designs. For example, the J-20, which was designed by Chengdu Aircraft Industry Group, has a waverider design in part of its nose.

This design moves the shock wave surface, which was originally concentrated on the sides of the nose and fuselage, to the lower surface of the nose.

This reduces the contact area between the fuselage and the shock wave, reduces the thermal flutter caused by the thermal expansion effect of the high temperature of the shock wave, and can further reduce flight drag and increase range.

"Xiao Dong, you've come to eat with your Uncle Xu. We can talk about it after we finish eating."

At this moment, Zhou Xiaoyan saw that Lin Dong was no longer busy, so she came over and called for dinner, while also beckoning Xu Ziming to come and bring the food.

The food had just been prepared, but Lin Dong was busy and she didn't bring it out to disturb him.

"Yay, dinner's ready!"

Upon hearing the sound, Xu Qingling immediately threw her pen onto the exam paper and jumped up from her seat.

"Didn't you just have lunch not long ago?"

As Lin Dong spoke, he gathered up the draft paper on the table, went into Xu Ziming's study, and stuffed it into the shredder.

"That's breakfast, breakfast."

"And I only ate a small bowl of noodles and a bottle of milk, not much."

Xu Qingling corrected her, helping to pick up the papers that had fallen on the ground, regardless of whether they were written on or not, and stuffing them all into the shredder.

Although some of these draft papers have no writing on them, they may have left marks due to the pressure they were placed underneath. When illuminated by special light or covered with a thin film, the marks and writing on them will be revealed, and they must all be packed up and shredded.

After finishing his draft paper, Lin Dong washed his hands and went to the restaurant. By then, Xu Ziming and Zhou Xiaoyan had already brought out the food.

"Uncle Xu, I just sent an email. The project meeting is tomorrow morning at 9:30."

Lin Dong sat in his usual spot, took the bowl of soup that Zhou Xiaoyan had served him, and looked at Xu Ziming, giving him instructions.

"I'll compile a summary of what needs to be done in tomorrow's meeting and send it to you and your godfather. You'll be attending the meeting tomorrow, so if there are any problems, please help smooth things over."

Don't worry.

Xu Ziming served Xu Qingling a bowl of rice, neither agreeing nor refusing: "Engineer Wang has decades of experience. He could conduct an internal project meeting at Chengdu Aircraft Industry Group with his eyes closed. He won't give himself away."