What does it mean to get a perfect score on the college entrance exam but then go missing?

Air enters the adjustable throat through the intake duct, generating a low-frequency turbulent roar, much like a giant blower.

Immediately afterwards, the injection holes of the isolation section and the annular combustion chamber emitted a whistling sound, and a sharp "hiss" sound continued to ring out.

But soon!

*Pfft—Boom!*

The hot jet ignites, producing a subsonic combustion sound.

After a while.

The deflagration quickly transforms into a supersonic detonation wave, with pressure pulses exceeding 20 atm repeatedly impacting the annular combustion chamber wall, and the frequency frantically impacting the fundamental frequency at a high frequency.

A series of rapid, dense metallic cracking sounds, thousands of short "clang! clang! clang!" per second, like a barrage of heavy hammer blows relentlessly pounding a thick steel plate, accompanied by an instantaneous, ear-piercing explosion.

The shock wave in the isolation section oscillated back and forth, superimposed with low-frequency periodic rumbling, creating a muffled tremor of expansion and contraction.

At the moment of detonation, the overpressure gas leaked out from the nozzle and gaps, as if it were about to tear the air apart, making a "siu" sound.

The continuous pounding of the heavy metal hammer and the constant small explosions caused a strong tremor in the ground.

And it was amidst these aftershocks.

As the plane began to taxi, its tail flames grew increasingly intense, trailing blue and white flames several meters long. Spiral flames swirled rapidly with the shockwave, scorching dark marks on the runway surface. White smoke surged backward along the sides of the fuselage, obscuring the rear half of the runway.

The nose of the plane suddenly lifted, and it began to climb at an angle into the sky, its tail flame leaving a trail of alternating light and shadow in the sunlight.

The deep, low-frequency roar still echoes in people's minds, like thousands of steel hammers relentlessly striking the sky.

At that moment, everyone was deeply moved.

Sun Xiang stared at the scene, which resembled something out of a movie, and froze on the spot, as if he had been covered in cement.

I'm chovey!

This is footage you can watch without paying?

For a moment, Sun Xiang thought he was on the set of a Hollywood blockbuster!

Don't tell!

You know what!

That's a damn dragon's roar!

Sun Xiang has been to many airports and has personally witnessed the test flights of many fifth-generation fighter jets.

The sound of those planes taking off was a smooth, gradual roar.

The aircraft, amidst its vibrations, emitted a low-frequency sound that resonated deeply, like a war behemoth stomping on the ground.

That commotion alone is enough to scare people.

Not to mention the end.

The nose of the plane pulled up diagonally upwards, and it took off towards the rising sun on the short runway of less than 100 meters!

This scene is absolutely artistic!

That's good, the strategic deception scenario can be saved.

If the paparazzi can film what they just saw and upload it online, wouldn't the US be terrified?

"Good! Good! Good!"

Sun Xiang raised his hands and clapped continuously.

"Absolutely wonderful!"

"Congratulations, Qin!"

"To be honest, the test flight was much more successful than I had imagined!"

In Sun Xiang's imagination, there are three scenarios.

The worst-case scenario.

The students lacked the necessary skills, and the plane simply wouldn't take off.

An mediocre situation.

The plane was unlikely to take off, its posture was rather awkward, and the photos taken were full of flaws.

Best-case scenario.

The plane took off from the airport with perfect posture, making for a very photogenic moment.

But Sun Xiang's current situation is ten thousand times better than the best-case scenario.

The visuals are not only stunning, but also inherently intimidating.

To be honest, the photos don't even need to be edited; they can be published directly.

Sun Xiang felt that this strategic deception plan was perfect, and that the mission had been exceeded.

He looked at Zhao Changheng with great interest.

"Chief Designer, I believe this test flight will fully achieve its strategic objectives. Don't you agree?"

"Chief Engineer Zhao?"

"Why aren't you saying anything?"

……

……

In stark contrast to Sun Xiang's excitement was the silence of the technical team.

Whether it's Yang Hewei or Gong Jianping.

Whether it's Ning Shuguo or Zhao Changhong.

They all fell into endless silence.

Laymen watch the spectacle, experts watch the details.

Anyone with even a basic understanding of physics would know that something was wrong with the sound.

This is definitely not the sound of any conventional engine.

No engine can make that sound!

The most puzzling thing is...

The plane took off after taxiing less than 100 meters on the runway.

What does this tell us?

This shows that the aircraft's thrust-to-weight ratio is simply incredible!

This huge model airplane must weigh at least tens of tons.

To make this behemoth take off from a runway that's only a few dozen meters long, its power source is definitely not something that can be achieved by simply installing any engine!

at this point.

Zhao Changhong had no choice but to abandon his nonchalant expression.

He turned to look at Qin Ze, his eyes filled with a hint of questioning.

"Young man! What kind of engine are you using?"

Qin Ze pouted after hearing this.

Look at you, you're not listening attentively when I'm talking.

Now they've come back to ask again.

The problem is, you can ask questions, but your attitude is so bad.

You may be the leader, but you should at least have some manners.

So Qin Ze said with a bit of a temper, "Three-mode rotating detonation combined cycle engine, I've said it several times already."

Don't give me that!

Zhao Changhong didn't believe a single word of it.

Three-mode rotating detonation combined cycle engine.

These dozen or so words together represent the highest level of technology in the engine field.

Let's not even talk about you guys.

Even if I gathered all the experts in China together and called in the top talents from the US, I still wouldn't be able to figure this thing out.

"I didn't ask you what was written in the PowerPoint presentation!"

"What I'm asking you is—what kind of engine did the plane that just took off use!"

Qin Ze: "????"

No, did you stuff donkey hair in your ears?

"A three-mode rotating detonation combined cycle engine!"

Qin Ze emphasized it again.

Is this chief designer out of his mind?!

Zhou Jiahao explained the menu very clearly when he was reciting the dishes.

Moreover.

Such a big plane, other engines won't be enough.

"Chief Designer Zhao, you're a veteran in the aviation industry, you should be able to tell."

"The plane just took off in less than ninety meters."

"At this distance, the thrust-to-weight ratio of the engine is required to be extremely high."

"If we don't use a rotary detonation engine, we can't even lift the plane."

Qin Ze's explanation entered Zhao Changhong's mind word by word.

He can understand each word when it's broken down into its own words.

But when put together, it doesn't sound like human language.

Zhao Changhong simply couldn't handle it.

"You mean—you've really cracked the technology of rotating detonation engines?"

Qin Ze was puzzled: "Is my communication skill really that bad?"

Zhao Changhong's pupils seemed somewhat fixed.

It wasn't that Qin Ze's communication skills were poor, but rather that others dared not even think of it.

Rotary detonation engines are widely recognized as the power source for next-generation main fighter jets.

There are currently no reliable results in China.

Zhao Changhong's Xi'an Aircraft Power team has been working tirelessly on this project for five years, putting in countless hours of effort.

but!

There was no harvest.

You're telling me that a group of undergraduates conquered this pinnacle of human technology?

I just can't believe it!

Just when Zhao Changhong was in the abyss of doubt.

Qin Ze's walkie-talkie rang, and a little girl's voice came through.

"Team leader, first batch of data sent back!"

"The turbo knock mode is performing well, with a peak speed of Mach 1.8!"

"The sub-fuel rotary detonation stamping mode is operating well! Peak speed is Mach 3.5!"

"Currently in hyperbaric rotating detonation mode, current speed Mach 4.8, expected to reach extreme speed Mach 6 within two minutes!"