Tang Rui circled around the J-18 and sent a lot of questions.

For example, the lifting body side strip canard layout.

For example, the main wing with a small aspect ratio and a medium sweep angle.

As everyone knows.

This aerodynamic layout is basically based on the unification of the maximum lift coefficient at low speed, the sub-transonic lift to drag ratio, and the supersonic drag coefficient.

The ideas are all good.

But there are also a lot of problems inside.

Tang Rui didn't think that Shen Huoyi had solved the problem.

However, these problems are not for him to consider, he just needs to help Shen Huo Yi get the vertical take-off and landing system right.

"What was the VTOL lift factor you calculated earlier?"

Tang Rui asked.

"The result of the simulation on the supercomputer is 65%."

Mock?

That means there's actually a problem.

"What about actually?"

Tang Rui asked curiously.

Director Liu replied with a wry smile: "Only 37%. ”

Okay.

There is a 30% difference between the calculation results and the actual test.

That's a vertical take-off and landing yarn.

Only when the lift force is more than 51% can vertical take-off and landing be achieved.

Not to mention the problem of modifying the engine at the moment, it is this vertical take-off and landing system that has problems in itself.

Tang Rui looked up at the body of the J-18, thought for a while, and said: "You sacrificed the lift coefficient of the vertical take-off and landing system to ensure the stealth performance of the fighter?" ”

"That's right, the stealth performance must be up to standard, otherwise even if the J-18 has a vertical take-off and landing function, the Air Force will not accept it."

Director Liu naturally knew what Tang Rui meant.

So he didn't flicker either.

Directly told the situation he was facing.

If you don't force it, you can't help it.

Shen Huoyi would not be in such a hurry.

"Okay, I see, have you brought all the information?"

"Brought."

"Give me the information, and I'll go back and study it first."

"Okay."

Director Liu was very excited when he saw that Tang Rui did not leave directly.

Willing to help in this situation.

Don't say it's asking for information.

Even if you want him to serve all the time, there is no problem.

"Mr. Tang, we have sent the forward-swept wing verification plane, do you want to take a look?"

Director Liu saw that Tang Rui was about to leave with the information, and immediately spoke.

"Don't worry, let it go first."

Tang Rui shook his head, he didn't have the heart to look at the verification machine now.

"Brother Yang, go home directly, don't go to the company."

"Okay."

Tang Rui wants to go back and thoroughly understand the J-18 information, and then build a model machine.

He was willing to help.

It's not that he has the best spirit, and it's not because of the information on the forward-swept wing verification plane.

Instead, something suddenly occurred to him.

That's the VTOL system, which is perfect for forward-swept wing models.

Even more suitable than a swept wing.

As far as the aerodynamic layout is concerned.

If the swept wing of the J-18 is changed to a forward-swept wing, the lift coefficient can be increased by at least ten percentage points.

If he had studied this system, it would have been able to be used in the forward-swept wing fighter he was going to build next.

Think about it.

When a forward-swept wing fighter was passing through the field at low altitude and low speed on the runway, it suddenly made a 180-degree U-turn on the spot.

The effect is terrifying.

Even in his mind, the potential of this system is huge, not only for vertical take-off and landing, but even for future aerospace fighters.

After all, out of the atmosphere, the aerodynamic layout is useless.

But this system allows fighter jets to maneuver outside the atmosphere.

This is also the reason why Tang Rui is so positive.

Back home.

Tang Rui imported the materials into the learning machine.

Then I put on the learning machine, lay down on the bed and start studying.

Until more than three o'clock in the afternoon.

He just woke up from his sleep.

"Brother Yang, do you have anything to eat?"

"Yes, I bought it at noon, just warm it up."

After eating.

Tang Rui came to the company and began to manufacture a model aircraft for the J-18.

"It's back to the old ways."

When he started to be a model airplane again, he was also a little emotional.

What was his condition at the beginning.

What are the conditions now.

The equipment in the laboratory is the best and all kinds of accessories are available.

Plus Xiaoyi's help.

Tang Rui only took more than 1 hour to complete the model aircraft of the J-18.

Airframe Enhancement -1

Flight Control Enhancement -1

Energy Enhancement -1

Engine Enhancement -1

It only took 4 source points to strengthen the entire model airplane.

Look at the model airplane that has become more than two meters long.

Tang Rui didn't feel excited at all.

Flight control system enhancement -5

Structural reinforcement -5

VTOL system strengthened by -5

With a glimmer of light.

Enhancement complete.

Tang Rui picked up the model aircraft and looked at it for a long time, then moved it to the workbench and began to disassemble it.

"Xiaoyi, scanning modeling."

"Okay."

He only needs to disassemble it, and Xiaoyi will control the robotic arm, use the laser scanning equipment, scan the structure of the body, and model it on the computer.

Half an hour later.

The structural model of the airframe structure and the vertical take-off and landing system appeared on the computer.

Tang Rui took out his mobile phone and made a call to Director Liu.

"Hey, Mr. Tang."

"Director Liu, I have redesigned the VTOL system, do you have a supercomputer over there? I'm going to use supercomputing for simulation. ”

"Supercomputing simulation, okay, no problem, you wait a minute."

Less than ten minutes.

Director Liu called and told him that it had been arranged.

It's not Shen Hoy's supercomputer.

Rather, it is the computing power of the Oriental Imperial Wind that I bought.

Boy.

Coming full circle and back.

"Xiaoyi, pass the model to Dongfang Yufeng and start simulating."

"Okay."

This time, Xiaoyi is logging in openly, not secretly opening a super administrator account.

"Xiaoyi, how long does it take?"

"Expected 2 hours."

Tang Rui nodded, got up and left the laboratory.

Take your time.

He's not in a hurry anyway.

When he finished eating in the evening, the results of the supercomputer simulation came out.

Simulated lift 91%.

Tang Rui took a look at the simulation report.

The VTOL system, which has been strengthened by the system, has fully met the requirements.

And this system does not sacrifice stealth performance.

The only sacrifice is the load of the body.

However, compared to vertical take-off and landing, the sacrifice of the load is nothing at all.

"Don't look at it, it's time to work out."

Li Shuyao closed the laptop and pulled Tang Rui to the gym.

"Wait for me to change my clothes."

Tang Rui got up and went to the cloakroom to change clothes.

After a hearty workout, Tang Rui transmitted the data to the learning machine and put it on to sleep.

The scourge that disturbed his studies was already asleep at this time.

The next day.

Tang Rui came to Saddle Airport.

"Director Liu, have your people arrived?"

"Some of them will arrive, and some of them will arrive today and tomorrow."

"Okay, gather the people who have already arrived, and I'll assign them a task."

"Okay, I'm going to gather the people.

That one...... Do you already have a plan for improvement? ”

"It's a billion ideas."

(Thanks to Boss Murong Xuanfeng for the reward, add a more chapter)

There are two more chapters, continue to code words.

(End of chapter)