Spark

Back at school, Chen Nian quickly packed up his things and moved to Chen Guo's dormitory. He had already gone back to the Northeast with other colleagues for a business trip in the afternoon, and he just returned to his hometown with his wife and children, so the whole dormitory seemed a bit empty.

Chen Guo's bedroom door is locked, but the study room is open, and there is a note he left for Chen Nian on the table:

The study is free to use, and the notes on the desk are for your reference. If you need other materials, you can contact the substitute teacher He Wen. In addition, there are noodles, eggs and other ingredients in the kitchen refrigerator.

Chen Nian smiled slightly, thinking that the other party was really thoughtful.

Even supper was considered for myself.

After tidying up the desk surface a little, he spread out the white paper, ready to start drawing.

According to the previous promise, he will try his best to submit three drawings within a week, the most complicated one is the air intake, and the simplest is the full-motion horizontal tail.

The full-motion horizontal tail is actually very intuitive in terms of structure and principle. It is even found on many model airplanes and toy planes. The real difficulty lies in how to integrate this set of devices into the F-22.

The integration process is actually a process of data verification and functional verification.

The most important of these is size.

As it happens, this point is not difficult for Chen Nian, he just needs to take out all the information recorded in his mind.

This might take some time, but it's not a brain-draining one.

Chen Nian held the pen and ruler, took a deep breath, and began to draw on the paper.

It took him about two hours from the first stroke until the final structure was roughly formed.

The remaining work is to disassemble the more subdivided parts of this part of the structure, such as rivets, bolts, bearings, and so on.

According to his estimation, taking into account the advantage that repeated parts do not need to be drawn repeatedly, it only takes about 8 more hours for him to complete all the drawings.

Of course, tonight is definitely not going to work.

The time has come to 11 o'clock in the evening, and staying up all night is definitely not going to work.

So, after simply cooking noodles for himself and taking a comfortable bath with free hot water, Chen Nian lay down on the bed in the guest room that Chen Guo had packed for him.

He picked up the notebook from Chen Guo's study desk, intending to study the experience of this national treasure-level expert who will enter the legendary level sequence in a few years before going to bed.

However, when he opened the notebook, the contents inside really made him frown.

This is too messy!

From the first page, it seems that the owner of this notebook didn't intend to record it in a proper manner. There is a hammer here and a stick here, and sometimes there are several pages between two sentences that have a logical relationship.

And the knowledge points are scattered and jumping.

Chen Nian sighed helplessly, bit the bullet and read on.

But looking at it, he suddenly discovered a certain pattern.

Yes, this notebook is indeed messy, but it is not really messy.

It is combined by people with a leaping logic.

A very simple example, Chen Guo wrote the drag calculation model on the first page, but did not record the first Cd value, which is the lift coefficient value, until 4 pages later.

The reason is very simple, that is because he started the verification calculation of the drag coefficient formula from the fourth page.

Before that, he only used a macro perspective to understand the concept of resistance.

Chen Nian suddenly realized.

He knew why it seemed so difficult to him at first.

Because, Chen Guo's study method and his own study method are actually two completely opposite extremes!

I am down-to-earth, building the foundation step by step from the bottom up.

And he is from a high place, pushing back from top to bottom.

Such a method requires extremely high talent, and it is estimated that only true geniuses can understand it.

And I am not actually a genius, it is normal to have difficulty understanding it.

——

However, the difficulty is only for thinking.

But now, what appeared in front of him was a notebook that had already been written.

That is to say, you can check and deliberate over and over again!

Until I completely understand Chen Guo's logic!

Thinking of this, Chen Nian couldn't help getting excited.

Why did everyone like to borrow Xueba's notebook in high school?

Isn't it because that thing is more intuitive and useful than textbooks and information books?

If I can learn and understand this Chen Guo's Notebook, will I get more sources than the self-study textbook?

try it!

With this in mind, Chen Nian quickly entered an immersive learning state.

And when he came back to his senses again, the time had already come directly to 4 o'clock in the morning.

Five hours of super-intensive study and thinking even made his nerves feel tense and painful.

It turns out that Bernoulli's equation can be derived from both momentum and energy equations.

The calculation of superimposed flow is much more complicated than the calculation of single type flow.

Also, he also felt that the textbook was unreasonable like me. From the Bernoulli equation to the potential function and the flow function of the governing equation, there was no transition between these two chapters. When he was learning, he looked confused.

As Chen Nian turned back through the notes, he secretly sighed in his heart.

In fact, he had roughly come into contact with these things in his last life, but he certainly didn't understand them as deeply as he did at this time.

Therefore, through Chen Nian's notes, he has indeed obtained a lot of different knowledge.

At least the basic understanding of the subject of aerodynamics has been substantially improved.

Is this considered learning?

Chen Nian turned on the system, and when he saw the source point value data, a look of joy appeared on his face.

Actually added 0.05 points!

In 4 hours, the number of source points increased is more than twice that of self-study textbooks.

It seems that standing on the shoulders of giants is the best solution!

Now, the number of source points he has accumulated has reached 0.09 points, and he will soon break through the 0.1 mark.

It won't be long before the next analysis can be performed.

In the end is to analyze the power system, or analyze the control system?

Although it is said that in the next ten years, the level of domestic avionics and control systems has far surpassed that of the United States, but if we can now obtain the entire control system of the F-22, especially the flight control system, the gains are still great.

You know, that country is a ruthless character who can make the B-2 fly.

Even, the F-15 can land safely on half of the wing.

Getting this is enough to take a big step forward in the level of domestic flight control.

But the power system including aviation engine is obviously also critical.

Tangled.

Chen Nian shook his head, feeling drowsy already, he stopped thinking about it, turned over and covered himself with the quilt.

Forget it, leave this choice to the people above.

If they have the confidence to solve the material problem in a short time, then analyze the power, if not, then let's work on the manipulation system.