The rejuvenation of a great nation: from educated youth to national treasure scientist

The biggest difficulty Shen Fei encountered was that they did not have a deep enough understanding of the "stealth" design process.

In Wang Haoran’s design concept, the so-called stealth is the integration of multiple technologies.

Through radar absorbing materials, aerodynamic design, thermal stealth technology and electronic warfare stealth, the goal of not being detected by the enemy can be achieved.

In the final analysis, stealth and anti-stealth are a process of continuous evolution of spear and shield.

Even if a fighter jet can achieve the purpose of not being detected by radar through stealth and wave-absorbing materials, the opponent can still detect the existence of the stealth fighter jet through infrared detection, thermal detection, visual and acoustic detection.

Infrared stealth, this is also very important.

How to achieve invisibility under the opponent's infrared detection means?
Then the aircraft's thermal radiation characteristics must be reduced.

For example, heat radiation can be reduced through the special tail pipe design of the engine, or by using materials that reduce infrared radiation.

In addition to infrared stealth, we must also pay attention to the improvement of acoustic stealth.

This requires optimizing the engine exhaust system design and reducing exhaust noise.

This includes improving the shape and material of the exhaust ducts to reduce the potential for airflow disturbance and noise generation.

In addition, the vibration and friction of mechanical parts should be reduced as much as possible, and low-noise materials and designs should be used.

Additionally, sound absorbing materials are used in the surfaces and interior structures of the aircraft.

These materials can effectively absorb sound waves, reducing reflection and transmission.

The streamlined design of the aircraft's appearance can also reduce air resistance, thereby reducing the noise caused by airflow disturbances.

Noise invisibility requires very sophisticated manufacturing technology and materials.

Shen Fei had never been exposed to similar manufacturing processes in the past, so it would definitely be a waste of time to let them figure it out on their own.

The technical means of anti-stealth actually also include electronic warfare.

The main means of electronic warfare to detect stealth fighters is through the use of electromagnetic waves of specific frequencies for interference.

For example, electronic warfare aircraft can emit electromagnetic waves with the same frequency as the opponent's radar, which is an interference signal, making it impossible for the enemy's radar to accurately distinguish the target, thereby achieving the purpose of detecting stealth fighters.

The Doppler effect can also be used to find stealth aircraft.

The Doppler effect refers to the change in the frequency of the received reflected signal when there is relative motion between the target and the observer.

By analyzing this frequency change, the presence of stealth fighter jets can be indirectly detected.

Of course, stealth fighters cannot absorb all radar frequencies.

Technologies such as meter-wave radar, multi-directional detection, dual-base radar and passive radar can potentially defeat stealth fighters.

For example, meter-wave radar can generate a strong echo signal through the resonance zone of the stealth fighter's external dimensions, thereby detecting stealth targets.

Dual-base radar and passive radar technology can also effectively detect stealth targets.

In order to build an advanced stealth fighter, all of the above factors must be taken into consideration and solutions must be found.

Zhang Huaigong returned to the factory with a complete set of design plans. He originally thought that he could quickly understand the entire plan by organizing technical personnel, and then he could start to show his skills and quickly build a prototype.

As long as a better prototype can be built, then a new advanced stealth fighter can basically take shape.

However, they thought they had fully understood Wang Haoran's design, but when they actually started to implement it, they found that things were not going smoothly.

They simply cannot achieve many manufacturing process technologies.

The development of some materials has not been so smooth.

Zhang Huaigong felt a little anxious about this.

Therefore, he had to invite Wang Haoran to Shenfei to guide his work many times.

Of course Wang Haoran would respond to every request.

He flew to Shengyang on the third day of the New Year.

He found that it was still the New Year period, but Shen Fei was already very busy.

Obviously, they didn't really celebrate the New Year at all. They were working overtime to catch up with the work.

Everyone at Shen Fei should be holding their breath, as they hope to develop the prototype as soon as possible.

After Wang Haoran arrived, he immediately got down to work.

His main task is to solve some difficult problems that Shenfei's engineers are unable to solve.

Moreover, he taught all the techniques to Shen Fei's technical team without reservation.

This made Zhang Huaigong very grateful.

The first time Wang Haoran went to Shenfei, he stayed for 8 days.

He basically solved all the problems that Shenfei's technical team could not solve.

He hadn't returned to Beijing from Shengyang yet, but Cheng Fei had already called him.

Chengfei's work is obviously lagging behind Shenfei's.

They haven't come up with a complete design yet.

Wu Guoming originally wanted to ask Wang Haoran for help earlier.

However, because it was the Spring Festival, he was too embarrassed to speak up.

After all, during a holiday, if you call someone and ask them to do something for you for free, it won't do them any good.

That's not very polite after all.

However, Wu Guoming soon found out that Wang Haoran was actually invited by Shen Fei on the third day of the Lunar New Year.

After he heard this, he was so upset!
He thought to himself, it seems that my previous idea was wrong.

Regardless of whether it is a holiday or not, at least it's okay to give it a try when you call to wish someone a happy new year, right?

Things are good now. Shen Fei didn't care about his face and invited people over on the third day of the first lunar month.

Shenfei originally obtained a complete set of mature technical solutions.

Now, Cheng Fei was pulled further away by the opponent.

It seems that Shenfei will definitely come up with a prototype earlier than Chengfei this time.

When Wu Guoming thought of this, his heart felt as if it was stabbed by a knife.

After Wu Guoming found out, he immediately called Wang Haoran to complain, hoping that Wang Haoran could lead the design of Chengfei's stealth fighter program.

Wang Haoran could only rush to Chengdu as if he was in a hurry. After leaving Shengyang, he went straight to Chengdu.

He stayed in Chengfei for a month and helped Chengfei develop a complete design plan for the improved version of the F22.

In this process, almost all of Chengfei’s technical backbones participated.

These backbones have received almost all-round training and have a deep understanding of the entire design plan.

The time came to May of 87.

Chengfei also began to organize its forces to manufacture prototypes.

Chengfei Factory Director Wu Guoming was very nervous.

He still hopes to be able to catch up and develop the prototype before Shenfei.

Wang Haoran naturally noticed his impatient mentality.

Wang Haoran decided to have a talk with Wu Guoming.

After all, the fifth-generation stealth fighter is a high-precision device.

You can't rush or rush, you must do your best and strive for excellence.

Only in this way can we create a truly stunning fifth-generation stealth fighter.

"Director Wu, my personal opinion on developing the fifth-generation aircraft is that we should not be too hasty!"

"We still need to calm down and strive for quality."

Wu Guoming smiled and said, "Comrade Haoran, don't worry. We will definitely not relax on quality."

"I also have very high requirements for quality, haha!"

Wang Haoran said: "But I see that when you assign tasks, the time limit for completing the tasks is a bit tight."

"If time is too tight, it's easy to rush to the point of not cleaning the mud."

"So, give yourself some extra time to build the prototype." "Don't worry about the time, worry about the quality."

"Because, if the prototype is not good enough, then I'm afraid it won't be good for you either."

"Many times, the pursuit of efficiency is too much, but it is counterproductive."

"So, do you understand what I mean?"

Wu Guoming naturally knew what Wang Haoran meant.

"Comrade Haoran, my main concern is that if Shenfei develops the first stealth fighter first, the military will have a preconceived idea," said Wu Guoming.

Wang Haoran smiled and said, "You see, your mentality is wrong."

"Didn't I already say that?"

"Two stealth fighters, one for the Air Force and one for the Navy, isn't that just right?"

"The troops have seen so many good things now."

"They will definitely not immediately decide to use a product based on the prototype of another company."

"After all, both of your aircraft are registered in the army."

"You all have a chance."

"No matter what, you can't mess up your mentality, understand?"

Wu Guoming nodded and said, "Thank you, Comrade Haoran. I know what to do now."

Wang Haoran smiled and nodded and said, "I wish you can make a truly exquisite product."

"Our country needs to build a strong aviation combat force. As long as you can build the first prototype according to the technical requirements of our design, it will surely be a great success."

“Remember one thing: Make sure you produce quality products! Try to reduce defects as much as possible.”

“Don’t let others find problems, but find them yourself, and then try to solve all the problems you find.”

“Only in this way can we achieve twice the result with half the effort.”

Wu Guoming is already in his fifties.

He is also considered a highly respected expert in the aviation industry.

As a much younger person than him, Wang Haoran really didn't want to preach.

Because, such preaching seems like a humiliation to many experienced people.

Wang Haoran doesn't have this attitude towards everyone.

He only does this to those who are humble, willing to accept advice and listen to it.

After listening to Wang Haoran's speech, Wu Guoming sighed and said, "Comrade Haoran, I feel ashamed after hearing what you said!"

"I'm old, but I'm still like a young kid, a little irritable."

Wang Haoran smiled and said, "Director Wu, you are just too concerned."

"Although Chengfei and Shenfei are brother companies, they are competitors after all. If you eat more, he may eat less."

"But what I want to say is that the route I designed for you is different."

"One of you is a fifth-generation aircraft of the Air Force, and the other is a fifth-generation aircraft of the Navy and Air Force."

“There’s no conflict at all.”

Wu Guoming quickly asked: "Are ours stealth aircraft from the navy and air force?"

Wang Haoran smiled and said, “Yes.”

Wu Guoming was a little disappointed: "Is that so..."

Wang Haoran said: "I told you before that our navy will have at least 10 aircraft carriers in the future!"

"An aircraft carrier is equipped with at least 30 fighter jets, which means at least 300."

"In fact, the Air Force can probably only be equipped with so many advanced fighter jets."

Wu Guoming thought, ten aircraft carriers...

So when will it be done?
Moreover, it seems that an aircraft carrier does not need so many stealth fighters, right?
The aircraft carrier now seems to be equipped with the J-15 third-generation aircraft.

However, now that things have come to this, we can only accept this result with a pinch of our nose.

What else could he do?

Time passes so quickly in the busyness.

In the blink of an eye, it was already July 1987.

In early July, Shenfei took the lead in building a prototype.

This prototype is tall and mighty. In fact, it is the latest improved version of the previous J-20.

In the previous life, a fighter pilot revealed the news to the media: Although the appearance of the J-20 in different periods does not seem to have changed much, in fact, its internal improvements are quite significant.

Moreover, the aircraft produced in each period are different from the previous ones, mainly due to improvements made based on actual usage results.

Only a dragon can have such patience and dedication to excellence regardless of cost.

Once a Giant Eagle aircraft is finalized, it is quite difficult to continue to improve it.

This is mainly because all the military-industrial enterprises on Giant Eagle's side are private enterprises, and they are pursuing excess profits.

If you keep asking for changes, then the changes will incur huge expenses.

The most important thing is that frequent changes are troublesome and require huge manpower and material resources. In many cases, the cost outweighs the gain.

Capitalists are most afraid of trouble.

They still hope to make quick money, and it would be best if they could make money while lying down. That would be the best.

In the previous life, after the giant bear fell, the arrogant eagle thought that it had no rivals at all. It thought it could rule the world without any effort.

So, Giant Eagle began to financialize completely.

After all, if you can make a lot of money through financialization, why bother with industry?
The deindustrialization of Giant Eagle began to accelerate in the 90s.

At the same time, the entire Lizard nation is clamoring for deindustrialization.

It was at this time that Julong seized the opportunity and took the lead in reaping the benefits of a wave of industrial transfer.

Subsequently, Julong methodically completed industrial upgrading in 20 years and formed an industrial system with a full industrial chain.

The rise of the dragon is thus on track.

However, it is now the late 80s, and the current situation is very different from that of the previous life.

The biggest difference is that the bear did not decline as quickly as in the previous life, but the dragon achieved industrial upgrading with its own strength.

The Eagle is rapidly losing its lead in technology.

In the previous life, the Lizard Faction led by the Giant Eagle crushed the Giant Bear Group in almost all technological fields.

It is precisely because of the technological leadership that the giant bear will be dragged down bit by bit.

But even so, the giant bear shouldn't explode and destroy itself.

The main reason for the bear’s fall was due to major internal problems.

We have strayed off topic, let’s get back to the topic.

After Shenfei built the first J-20 prototype, they began to conduct a series of tests.

From taxiing tests to flight tests, various tests are being carried out in full swing.

Almost all the test results were quite good.

Zhang Huaigong was very excited and he immediately called his superiors to report the good news.

In particular, his first call was to Wang Haoran.

"Comrade Haoran, our fifth-generation prototype has undergone a series of tests, and the test results are excellent!"

Wang Haoran smiled and said, "Congratulations."

"Be prepared, we may be on the news." (End of this chapter)