Above the exhibition at an altitude of 3,000 meters.

The Eagle J20, which was originally soaring into the sky in a sword posture, slowly turned around and dived at great speed towards the bottom of the exhibition.

Not only that, but the J20 also performed a variety of flight stunts at high altitudes.

It sometimes sways and falls erratically from high in the air like fallen leaves, and its movements are graceful and beautiful.

Sometimes it is like a cobra, directly on the parallel horizon high in the sky, rising from the ground, forming a posture with the tail in front and the nose behind, like a cobra with its head on its back.

Looking at the various difficult flight stunts of J20 in the sky, all the military fans under the outdoor exhibition suddenly shouted excitedly.

The mobile phones and cameras that shot videos at the J20 did not stop for a moment, and all of them firmly followed the flight trajectory of the J20.

"This is just the beginning."

Li Gang, who came about a thousand meters above the exhibition again, smiled slightly after feeling the lively cheers below.

As an ace pilot, he could feel the performance of this fighter loaded with the S15, which had not yet been fully brought into play.

It can be said that the current J20 has not yet begun to play at full strength, and the previous one was a jogging at best.

Thinking of this, Li Gang did not hesitate to add thrust to the end instantly.

The next second.

With a thunderous explosion sound resounding in the sky, the two S15 engines behind the tail of the J20 began to explode at full power!

"Boom !!!Boom Boom Boom T

In the huge roar, the J20 dragged the flaming flame tail and rushed vertically into the sky in an instant at a speed visible to the naked eye!

This time, the J20 is several times faster than just now!

So much so that next to the fuselage of J20, there was a white sonic boom cloud like an inverted bowl!

And with the huge sonic boom coming from the air, the atmosphere of the outdoor exhibition has reached its peak!

"! Breaking the speed of sound! It's sonic speed!! ”

"Nima! Isn't this an afterburner? It's terrifying! ”

"Fart! Do you still think it was before, but now the performance of our S15, even if we don't need to turn on afterburner, we can reach supersonic speed!! ”

"That's right! Do you think two S15s with 35 tons of thrust are dry fart? Supersonic speed is not just a matter of having hands! ”

"Grass! It's so handsome! Lao Tzu's body is trembling with excitement now!! ”

"This is the romance of men!!"

The excited cheers at the scene came and went.

You know, this is the first time that the J20 has shown in front of the public that it can break through the speed of sound without afterburner.

After all, in the past, although the J20 was a supersonic cruise fighter, at that time, only afterburner could break through the speed of sound.

It is precisely because of this that many military fans have been sneered at by netizens in Western countries.

But that's no longer the case.

As the saying goes, feng shui takes turns.

With the birth of the S15 engine, all military fans are probably going crazy on the Internet this year.

In the excitement of everyone, Li Gang controlled the J20 to climb quickly, leaving clearly visible sonic boom clouds in the air.

It wasn't until about the height of the meter that the J20, which had been climbing at a high speed, finally stopped.

"Report, I'm requesting afterburner to be turned on!"

In the cockpit of J20, Li Gang said to the communicator with a little excitement in his tone.

The afterburner state refers to the process in which the thrust of the engine exceeds the maximum working state in a short period of time.

In game terms, it's Super Nitro Boost on top of the original Nitro Boost in the Flying Car!

"Agreed, this afterburner state time is 10 minutes, you kid gave me an open flight."

Soon, a middle-aged man's hearty voice came from the communication channel.

"Roger!"

Hearing this, a smile appeared on Li Gang's face, and he immediately turned on the afterburner state directly!

"Boom Boom !!Boom Boom Boom T

A huge explosion resounded in the sky again, and the afterburner state of J20 instantly turned on.

For a while, the J20 fighter jet in the sky, as if it was making a space leap, shot away at an incredible speed towards the extreme distance!

Meanwhile.

The originally blazing flame tail behind J20 has directly turned into a purple Mach ring three or four meters long, which looks very cool and sci-fi!

And this terrifying speed also turned the air in front of the J20 fighter into a wall of white clouds.

However, this white cloud wall was directly pierced by the J20 fighter with full firepower!

Therefore, in just an instant, the J20 with the afterburner turned on disappeared in front of everyone.

Seeing this scene, everyone under the outdoor exhibition suddenly looked stunned.

"This ...... That's outrageous, isn't it? I'm gone in the blink of an eye! Lao Tzu is such a big J20!! ”

"It's afterburner! It's definitely afterburner! If you don't use afterburner! I drink water directly upside down!! ”

"Well, this afterburner is too strong, it's really an exaggeration."

"Hahaha, this is the real strength of J20! J20 is awesome! ”

After coming back to their senses, many military fans were shouting and venting their excitement.

In this afterburner state, the J20 can reach a speed of almost twice the speed of sound, which is simply insane!

After more than ten seconds, J20, which had disappeared from everyone's view, reappeared.

This time, the J20 is still the same, about a kilometer above the outdoor exhibition, and begins to climb vertically.

However, because of the afterburner state turned on, the vertical climb of the J20 is crazy and accelerated, like a sharp sword piercing the sky!

After a few seconds.

I came to the J20 at a height of meters again, and began to perform aerobatic performances in various postures in the air in an afterburner state.

Roller spiral flight, bell maneuver flight, falling leaves, eye snake maneuver, super cobra maneuver......

As the J20 flew over the exhibition repeatedly, everyone was fascinated and fascinated.

However, this situation did not last long and was broken by a sudden exclamation from the crowd.

"! This afterburner has been on for a few minutes, doesn't it mean that the afterburner can't be more than two minutes, and if it exceeds the clock, it will cause irreversible damage to the engine, why is the J20 still on! ”

As the word spread through the crowd, everyone woke up from a dream.

"yes, it's been seven or eight minutes! Isn't it all the engine that's already melting? ”

"I'll go! I'm afraid that the pilot is not flying and forgetting this? ”

"Laugh to death, who can fly the J20 is not an ace pilot, this kind of life-threatening thing will others forget?"

"Shhh...... In this case, there is only one possibility, and that is that the latest S15 engine can withstand afterburner for a longer period of time! ”

"Good guys, super steel materials are so good? Even the afterburner state can be extended! ”

Just when military fans were talking about the afterburner state of the J20.

Fu Linnan, the chief engineer at the exhibition, said with a smile: "We said before that this latest S15 applies a new design and materials, so its afterburner state will last for a long time." ”

As for how long it is, I can only say that if it is in the case of infinite oil, its afterburner state time can last up to 35 minutes. ”

35 minutes!

Hearing this unbelievable figure, everyone present, including the purchasing groups from various countries around the world, was shocked.

They had thought that the afterburner of the S15 might take a long time, but they didn't expect it to be so outrageous!

You know, all the fighters in the world now, even under certain circumstances, they will last for a short time, at most a few minutes, or less.

There are two main reasons for this.

One is that there is not enough fuel.

The second is that the material is not allowed.

Actually, to put it bluntly

It is in the afterburner chamber filled with high-temperature gas, fuel is filled, and secondary combustion is used to make the engine gain additional thrust.

However, since the oxygen content of the exhaust gas after combustion is used in this case, the oxygen content has been reduced, so the combustion efficiency is not high.

This means that afterburner is a means of obtaining an increase in thrust in a short period of time at the expense of a large amount of fuel and reducing fuel efficiency.

Therefore, it is no exaggeration to say that to open afterburner is to burn aviation fuel, that is, to make money.

Every minute it is burned, it is nearly a ton of aviation fuel, which is also a soft sister coin of tens of thousands of white flowers.

Secondly, the temperature of the combustion chamber and other parts of the engine will continue to rise to an astonishing thousands of degrees Celsius under the condition of afterburner.

In this case, even if the engine parts are highly fire-resistant, they cannot withstand the high temperature of several thousand degrees Celsius for a long time, so they will melt.

Therefore, in the eyes of everyone, the latest S15 aircraft engine carried by the J20 can have an afterburner time of 35 minutes, which is simply incredible.

"Of course, I'm only talking about the ideal condition of infinite oil."

Looking at the shocked appearance of everyone, Chief Engineer Fu Linnan continued to smile: "Under normal circumstances, the afterburner time of our J20 is conservatively estimated to be about ten minutes. ”

The voice fell.

In the sky above the exhibition, the J20 finally slowed down and began to turn off the afterburner.

Immediately after, the J20 completed its last low-altitude dive flight, and slowly disappeared in everyone's eyes.

After watching J20 leave, everyone slowly came back to their senses.

Seeing this, Fang Xu, the engineer next to him, hurriedly stood up and said: "Everyone, this is the real strength shown by the J20 that has been replaced with two S15s, so now let us thank Fu Linnan, the chief engineer of the S project, and Academician Lin Yu." ”

"It is their efforts that can make the S15 truly mass-produced, please extend the warmest applause to them!"

After the engineer Fang Xu finished speaking, the scene immediately burst into a tidal wave of applause.

Everyone knows what the S15 breakthrough represents.

And all this is because of Lin Yu and Fu Linnan.

Seeing this scene, Lin Yu, who was a tool man, naturally smiled and applauded with the same smile, and then stepped down with Chief Engineer Fu Linnan.

After the two left, the applause at the scene still lasted for a long time.

The first outdoor exhibition is over.

However, the sensation caused by the S15 has only just begun.

It's just that Lin Yu is not in the mood to pay attention to all this now.

Because after he finished the first S15 exhibition, he was taken by Zhao Yu again and came to the second outdoor exhibition.

This exhibition is a panoramic combat of the armored forces on the ground.

Among them, there are more than 30 kinds of ground equipment such as VT4 main battle tank and VT5 light main battle tank.

These simulated training scenarios are very realistic and look shocking.

However, after a long time, Lin Yu became a little bored.

But there was no way, he couldn't leave if he wanted to.

Because these ground armored units also apply super steel materials.

Moreover, what makes Lin Yu even more desperate is that all the theme exhibitions in the four aspects of "sea", "land", "air" and "sky" of the entire air show are all applied to super steel materials.

This means that in the next 5 days of the air show, Lin Yu may have to act as a ruthless tool.

Time passes slowly.

Just as Lin Yusheng was watching one theme exhibition after another without love.

Videos and information about the S15, Super Steel, and J20 flight aerobatic performances on the Internet have spread wildly.

You know, as an air show every two years, its own popularity is not low.

Not to mention that the air show is also related to Lin Yu, so this has naturally attracted the attention of countless people around the world.

All of a sudden, whether at home or abroad, major news media and short videos began to be filled with all kinds of reports.

In particular, the terrifying data of J20, as well as the video of it breaking through the speed of sound and cutting through the sky with a sonic boom cloud, deeply shocked everyone who watched the video.

"Damn, Lao Tzu is uneducated, I can only say one word about the motherland!!"

"It's so burning, I can't wait to go and listen to J20's dragon chant in person."

"From now on, who is qualified to say that our fighter engines are not good!?"

"Gentlemen, listen to this dragon's chant and shake the nine heavens!"

"In the field of aviation development, I have finally returned to the top of the world!"

"Grass! Upstairs cultural people! My whole body is on fire! ”

"Needless to say, I'm already ready to buy tickets for the professional day, isn't it only two thousand yuan, it's worth the money!"

"Count me in!"

All kinds of proud and proud comments of Chinese people filled the comment area.

And the names of Lin Yu and Chief Engineer Fu Linnan also spread all over the country through the Internet in an instant, and were known by countless people.

It's just that compared to the pride and pride of the Chinese people, netizens in other countries around the world are amazed by this information.

Not only that, as the air show incident continues to ferment, many Chinese people are also flocking to the air show.

As a result, the originally harmonious and orderly professional daily air show suddenly began to become lively.

For this scene, when Lin Yu first started, he naturally didn't care.

It was only when he got to the back that he began to have a headache.

Because almost all of these people who poured in came for him.

Moreover, what makes Lin Yu feel most helpless is that these people not only like to ask him all kinds of questions, but also like to take photos with him.

And Lin Yu originally planned to refuse, but he really couldn't stand the enthusiasm of everyone and the meaning above.

After all, Lin Yu attended the air show this time, but he used the identity of a scientific researcher.

And countless scientific researchers are very envious of Lin Yu's treatment.

You must know that no scientific researcher can refuse the opportunity to talk freely with the Chinese people and introduce what they have developed.

Because, in the eyes of scientific researchers, such treatment is not only a symbol of glory, but also the pride and pride of the motherland because of itself.

These things are priceless.