The falcon, which made a sharp turn to the right, let out a trembling high-pitched scream, showing excellent instantaneous hovering performance, pulled out a small radius turn, and then rolled 360° to the right at high speed, and then 360° to the left sideways.

"How does it feel?" Yang Xiaolong's voice came out and resounded over the radio: "Raise your hand." ”

Zhou Hai turned a blind eye to the high overload applied to his body, and his face was flat: "Very good." Not only did he raise his right hand easily, but he also waved it a few times at Yang Xiaolong in the back cabin.

Uncomfortable feeling due to overload?

Inexistent.

That invisible sense of oppression?

Still non-existent.

Even if the Falcon under him makes a maximum limit overload of 9.5G, he can move freely.

Zhou Hai didn't know where his physical limit was.

Yang Xiaolong, who was shrouded in overload, was already a little short of breathing, seeing Zhou Hai's waving right hand, there was a hint of surprise in his eyes, he took a deep breath, adjusted his state, and then pulled the lever to continue the operation.

Under the real overload environment, Zhou Hai's performance is somewhat beyond his imagination.

The high-speed flying eagle changed to roll, raised its head and climbed at high speed, and entered the front stage of the somersault maneuver at the extreme angle within the flight envelope.

Limit, which means higher overloads!

When the L-15C Falcon flew to the top of the somersault, it suddenly made another 360° lateral roll, and the nose of the plane was aimed at the vast expanse of land below.

The tail flame is dazzling, and the high-speed air flow envelops the whole body!

Diving to an altitude of nearly two hundred meters, the falcon lifted its slender and conical-shaped smooth nose to change its smooth flight at an extreme angle.

During the whole maneuvering process, the cabin almost swirled, reaching the peak of 5G positive overload and 4G negative overload, always shrouded in the fuselage.

"How does it feel?"

Yang Xiaolong, who was wearing a high-performance anti-load suit, was already out of breath as if he had gone through a 100-meter sprint, breathing the oxygen transmitted by the onboard oxygen supply system.

After a round of high overload maneuvering, Yang Xiaolong's physical strength was violently consumed, and his body had corresponding physiological reactions.

Flying the state-of-the-art L-15C Falcon at high speed, the whole process is subject to flight overload at all times, which continuously consumes the pilot's physical strength.

It is for this reason that there will be 3,000 meters and basic physical training.

Zhou Hai's voice seemed relaxed, his breathing was steady, and he was leisurely: "Very good, do you need to raise your hand?" ”

"Wave your hand and I'll see."

Hearing this, Yang Xiaolong looked a little surprised, stabilized the joystick to maintain a horizontal posture of the fuselage, and asked.

In front of the cockpit, one arm waved easily, back and forth several times, and even rotated left and right several times.

Looking at the raised and waving arms high, Yang Xiaolong was slightly stunned, and took a deep breath of relief: "The flight overload just now has a maximum of 5G, have you blacked out?" ”

"Nope." Zhou Hai responded.

"What is 3+2-5?" Yang Xiaolong's eyes narrowed, thoughtful, and continued to ask.

Zhou Hai's voice was calm: "0." ”

"What is 35811-38402?"

“109。”

A flash of surprise flashed in Yang Xiaolong's eyes, and he exhaled: "What does the overloaded G mean?" ”

"Gravitational acceleration." Zhou Hai replied.

"What is the form and application of the remaining term of Peano and the application of the formula of the Taylor formula of the higher number Taylor's formula?" Yang Xiaolong was a little excited in his heart, thought about it a little in his mind, and asked questions.

Hearing this question, Zhou Hai said without thinking: "British mathematician Taylor, the remaining term is Rn(x.)=o[(x.-x.o)n], in practical application, the Taylor formula needs to be truncated, only a finite term is taken, the Taylor series of the finite term of a function is called the Taylor expansion, and the remainder of the Taylor formula can be used to estimate this approximation error......"

His speech was smooth and powerful, his thoughts were clear, and he was fluent and free, without the slightest pause, answering the questions raised by Yang Xiaolong one by one.

The cockpit, which should be full of flying atmosphere, resounds with the rhythm of knowledge.

After Zhou Hai answered the whole question, Yang Xiaolong fell silent, a little moved, and was sure in his heart that Zhou Hai was not lying.

After a complete limit overload assessment, Zhou Hai raised his hand and waved at will, his brain did not lose consciousness due to high-intensity rotation, his logic was tight, and he could easily answer various questions.

What does this mean?

Incredible physical fitness!

After a short silence and thought, Yang Xiaolong made a decision in his heart: "Your performance is very good, now the control is handed over to you, after climbing to an altitude of 12,000 meters, I will take you to experience a supersonic flight, and you yourself are controlling it once to enter the supersonic flight state." ”

"Yes!" Hearing Yang Xiaolong's arrangement, Zhou Hai felt a sense of surprise in his heart, and after he regained control of the body, his deep and vast eyes seemed to be like sharp swords, pointing directly at the blue sky above his head.

12,000 meters altitude!

Supersonic flight!

This is something that Zhou Hai has been pursuing, and it belongs to the romance and feelings of the pilot.

There's nothing quite like soaring 10,000 meters in the air and pushing the limits of the speed of sound.

The L-15C Falcon, with its nose raised and bathed in golden sunlight, did not fall asleep, but awakened its inner will, exuding a momentum of arrogance and acceptance of its true owner.

Flight!

Climb!

"Boom!"

The flight altitude is getting higher and higher, the working environment of the two S-17 aviation turbofan engines is getting better and better, the high temperature air flow in the tail disturbs the surrounding air, and the monoplane plays its role in the sweep.

5,000 meters!

Seven thousand meters!

Soon, the L-15C Falcon climbed through a thin layer of Cumulus clouds to a height of 10,000 meters, and from this height downward, things on the ground were as small as ants, and the continuous Cumulus clouds seemed to be as magnificent as mountains, with different shapes, wide and dense honeycomb-like complex urban buildings.

Looking up, there is an empty and slightly dim sky, and beyond is the ultimate pursuit of the entire human civilization - the universe.

The scenery is stunning, dazzling and charming.

"It's beautiful."

Zhou Hai, who came to the 10,000-meter-high altitude for the first time, looked through the teardrop-shaped cockpit glass, looked at the surrounding scenery, looked up at the horizon that seemed to be close at hand but out of reach, and murmured softly, and a touch of confusion appeared in his eyes.

The L-15C Falcon did not flatten, but climbed at a relatively slow speed at an altitude of 10,000 meters to an altitude of 12,000 meters.

A few seconds later, the L-15C Falcon, which contains a sci-fi atmosphere, reached a predetermined altitude and flew out in a slow attitude, maintaining a horizontal attitude.

In the high-altitude environment, the density of the atmosphere drops sharply, which in turn leads to a decrease in the lift and aerodynamic efficiency generated by the wing system, and a significant decrease in maneuverability.

The altitude is 12,000 meters and the speed is 890 kilometers per hour.

"Now put down the rod and have a good experience, supersonic flight generally requires the engine to turn on afterburner, and you must maintain a horizontal attitude." Yang Xiaolong, who was staying in the rear of the cockpit, had recovered a lot of physical strength after this period of rest, and his voice was slightly tired.