Tang Rui walked around the J-18 and asked a lot of questions.

For example, the lifting body side strip canard layout.

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

As we all know.

This aerodynamic layout is basically aimed at unifying the maximum lift coefficient at low speed, subsonic lift-to-drag ratio, and supersonic drag coefficient.

The ideas are all good.

But there are many problems inside.

Tang Rui doesn't think Shen Hoy has solved the problem here.

However, these issues are not something he should consider. He just needs to help Shen Hoy fix the vertical takeoff and landing system.

"What is the vertical takeoff and landing lift coefficient you calculated before?"

Tang Rui asked.

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

simulation?

That means there is actually a problem.

"What about reality?"

Tang Rui asked curiously.

Director Liu smiled bitterly and replied: "Only 37%."

Okay.

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

What about a vertical take-off and landing thing?

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

Not to mention the problem of modifying the engine at the moment, there is a problem with the vertical take-off and landing system itself.

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

"Yes, the stealth performance must meet the standard. Otherwise, even if the J-18 has vertical take-off and landing capabilities, the Air Force will not accept it."

Director Liu naturally knew what Tang Rui meant.

So he didn't lie.

Directly state the situation you are facing.

If I hadn't been forced, I wouldn't have been able to do anything.

Shen Hoy would not be so anxious.

"Okay, I understand. Have you brought all the information?"

"Brought it."

"Give me the information and I'll go back and do some research first."

"OK."

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

Still willing to help in this situation.

Don't ask for information.

Even if you want him to provide one-stop service, there will be no problem.

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

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

"No rush, let's leave it alone for now."

Tang Rui shook his head. He had no intention of looking at the verification machine now.

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

"OK."

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

The reason why he was willing to help.

It's not that he has a ** spirit, nor is it because of the information on the forward-swept wing demonstrator.

But he suddenly thought of something.

That is this vertical take-off and landing system, which is very suitable for forward-swept wing aircraft.

Even more suitable than swept wings.

As far as aerodynamic layout is concerned.

If the J-18's swept wings are changed to forward swept wings, the lift coefficient can be increased by at least ten percent.

If he studies this system and understands it, it can be used in the forward-swept wing fighter he will build next.

Think about it.

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

The effect is simply terrifying.

Even in his mind, this system has great potential. It can not only be used in vertical takeoff and landing, but can even be used in future aerospace fighters.

After all, outside the atmosphere, the aerodynamic layout is useless.

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

This is why Tang Rui is so positive.

Return home.

Tang Rui imported the data into the learning machine.

Then I put on the learning machine and started studying while lying on the bed.

Until about three o'clock in the afternoon.

He just woke up from his sleep.

"Brother Yang, is there anything to eat?"

"Yes, I bought it at noon, just heat it up and it'll be ready."

After dinner.

Tang Rui came to the company and started manufacturing the J-18 model aircraft.

“I’m back to my old job again.”

He also felt a little emotional about starting to make a model airplane again.

What was his condition at the beginning?

What are the conditions now?

The equipment in the laboratory is the best and all accessories are complete.

Plus Xiaoyi’s help.

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

Body strengthening-1

Flight control enhancement-1

Energy Enhancement-1

Engine Strengthening -1

Only 4 source points were used to strengthen the entire model aircraft.

It looked like it had turned into a model airplane more than two meters long.

Tang Rui didn't feel excited at all.

Flight control system enhancement-5

Body structure strengthening-5

Vertical takeoff and landing system enhancement-5

Then a faint light flashed.

Strengthening completed.

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.
To be continued...