Siheyuan: Heavy Industry Revitalizes the Country

"What do you think determines the effectiveness of an aircraft's stealth?"

After returning to the office, Fang Xiang picked up the kettle and started making tea.

Although my hands are busy, I can still chat with you.

“I have actually studied this, and the most important thing is the paint.

I never thought that this paint could actually block radar signals.

I also conducted many experiments on this paint, and found that a considerable part of the radar frequency band is not reflected at all from the places where this paint is applied.

Without the reflected signal, it would be invisible."

After Wang Jinyang sat down, he watched Fang Xiang make tea, and he also gave a clear and convincing answer to the question raised by Fang Xiang.

"As expected of you, Senior Brother, you saw the essence at a glance!

Brother, have you ever studied why the J-10’s stealth effect is not good?

Or, is it not as good as the J-11? "

Fang Xiang first agreed with Wang Jinyang's speech, but soon asked the core of the question.

"I...

That's why I came to you."

Wang Jinyang was stunned with his mouth open.

My brain, which just crashed, came back online three seconds later.

"Have you noticed any difference between the two aircraft?"

After Fang Xiang made a wait gesture, he placed the poured tea in front of Wang Jinyang.

Then he stood up and walked to the cabinet, took out two photos of airplanes, and placed them on the table.

“Their design concepts are different, their functions are different, and their appearances are naturally different.

Any questions? "

Wang Jinyang frowned as he looked at the J-10 and J11, which were so familiar to him.

He didn't seem to understand what Fang wanted to express.

“If you put aside the design concept and function.

Just from the appearance?

Hmm? Tell me about it?"

Fang wanted to return to his seat and began tapping the table with one finger.

His face was very calm, with a hint of smile on it, as he looked at Wang Jinyang.

"Give me a hint..."

Wang Jinyang held a photo in one hand and raised two photos in front of his eyes at the same time, looking left and right for a long time.

Although he was so familiar with it that he could draw it without looking at the picture, he didn't know what to say.

"Let me put it this way, the MiG-31 was designed for high altitude, high speed and endurance, and it was designed relatively early, so there is not much use of aerodynamics.

The fuselage is mostly straight and angular.

The J-11 is different because it takes into account the maneuverability at medium and low altitudes, and uses more aerodynamics.

So the fuselage looks smoother, without as many right angles as the J-10.”

Fang Xiang used his hand to pick the pimple next to his nose. He thought it was probably because the weather was too cold recently and he ate too much hotpot, so he had a sore throat.

"You mean, if there are too many right-angle lines, it will be harder to hide than with smooth curves?"

Wang Jinyang suddenly put down the photo that he was holding in front of his eyes, and then looked at Fang Xiang with an incredible look.

"You said it, I didn't."

Fang Xiang picked up the teacup and took a sip of hot tea.

He smiled and pointed at the teacup in front of Wang Jinyang, motioning him to drink tea.

"Could the fuselage design have an impact on the stealth effect?"

Wang Jinyang had no time to drink tea at this moment. He threw the photo in his hand away and directly grabbed Fang Xiang's hand.

“That’s what you said.

Yes or no, you will know if you try it, right? "

Fang Xiang patted the back of Wang Jinyang's hand, which was so painful from scratching him.

"Don't play dumb with me, you bastard.

Have similar tests been done before?

What are the results? "

Wang Jinyang then let go of his hand, but the expression on his face was extremely serious.

"I wanted to do it, but the Air Force said no.

I think they may think that such advanced technology is not necessary now.

If you are interested, you may want to give it a try.”

After Fang Xiang finished speaking, he pulled out the F-35 sketch he had drawn earlier from under the pile of drawings on the table.

Pushed it in front of Wang Jinyang. "Wow, this thing is really beautiful...

Why is your brain different from others? "

Wang Jinyang grabbed the drawing and looked at it carefully.

He didn't even notice the cigarette Fang Xiang handed him.

“It seems that the streamlined shape of this model is more rounded than that of the J-11.

So you already knew that, right?"

Wang Jinyang looked at the drawing greedily.

He didn't stop talking.

"Then... why don't you do it yourself?"

Finally, Wang Jinyang raised his head, which was almost buried in the drawing.

“I don’t have enough time and energy.

Besides, haven’t you always wanted to design a model yourself?

How about it, are you interested in taking the lead?"

Fang Xiang smoked a cigarette and looked at the shocked Wang Jinyang with a smile.

“It’s not that easy...

I don't have the ability to take the lead in this matter.

I think it would be better if you take the lead and I will do the work for you.

How about this, you send me a letter and I'll second you to help you, how about that?"

Wang Jinyang looked at the blueprint in his hand. Although he was reluctant to give up, he knew very well that in terms of technology, he was not as good as Fang Xiang. In terms of connections, that was even worse. In terms of resources, that was even worse. Two Wang Jinyangs tied together were no match for one Fang Xiang.

If we really want to develop the model on the drawing, Fang Xiang has to take the lead.

With such a good design in his hands, it would take Wang Jinyang five years, let alone three years, to be able to produce a prototype. That would be amazing!

"Come on, I've even sent you a letter of secondment to come here.

If you come to Factory 132 today, I think Factory 112 will flip the table and curse tomorrow."

Fang Xiang was immediately delighted. Wang Jinyang was the chief engineer of Factory 112 a few years ago and the special designer and person in charge of J-10.

If he came to Factory 132, not to mention Factory 112, the entire Northeast system would curse him.

“If you want me to say it.

Anyway, the Air Force and the General Assembly are not in a hurry.

Just take it back and study it slowly, and try it out slowly.

It doesn’t matter when the prototype will be produced. What matters is how to integrate the technology purchased from Xiaomi this year.

You know, this model has much higher technology content than the one parked in the hangar."

Fang Xiang took the last puff of his cigarette before pointing at the drawing.

"What do you mean? How high is it?"

Wang Jinyang followed Fang Xiang's finger again, lowered his head and looked at the drawing.

“Fuselage material.

I have done some preliminary research and theoretically, it is not difficult to build such a fuselage.

But if you want to meet the standards of the next generation of fighter jets, ordinary alloy materials cannot be used as components of the fuselage.

We need to use higher technology and more advanced materials.

You see, the performance of America's F110 engine is better than our Taihang engine which is now in a bottleneck period.

If the F110 engine is installed on this model, what do you think the performance will be like?

Can ordinary materials withstand the pressure and tearing?"

When Fang wanted to throw the cigarette butt into the ashtray, it was immediately submerged by the water inside, making a sizzling sound.

"So what kind of materials do you think are needed?"

Wang Jinyang's thoughts at this time had been led by Fang Xiang.

Speaking of the F110, he had also looked at the drawings and conducted reviews. He had already calculated what effect the F110 engine, which has a thrust-to-weight ratio of nearly 10, would have when installed on the J-10.

However, due to the size of the J-10, it is impossible to install two F110s at the same time. Otherwise, the J-10 will directly become a performance beast.

But there is no problem with the J-11, as it can be directly equipped with the F110. It is a bit exaggerated to say that its performance is twice that of the WP-9 engine currently in use.

But 1.5 times is still no problem.

As the performance of the engine increases, the strength requirements for the fuselage materials will naturally be higher.

Wang Jinyang realized this immediately.