I yearn for the sky, but the sky is never as quiet and beautiful as it seems! Insects and birds fight in the sky, and humans flying into the sky can't avoid it!

Call...... The wings flutter, but relying only on the power of the wings flapping, it is difficult to exceed the speed of 500 kilometers per hour in the limit state; But human beings have solved this bottleneck with wisdom and technology, and this is jet power.

To this day, high-speed flight on flying mechs still comes from jet power, which today is mainly jet powered by plasma engines.

Rumble! A powerful burst of power, the pale blue plasma tail flame that looks like a powerful force. The pale blue color may seem inconspicuous, but it is an expression of extreme heat, combustion, and complete ionization. Under the stimulation of an electric field of up to hundreds of thousands, or even hundreds of thousands of volts, the products of alcohol and oxygen combustion will be ionized again, and the volume will continue to expand more than 3,000 times, bringing unimaginable recoil force!

With the proper help of a part of gravity, the mecha only gained an acceleration of 18 meters per second in an instant, which is nearly twice the gravity. At this kind of acceleration, it takes about 19 seconds for the mech to break through the speed of sound - which is relatively slow in this high-speed era.

There's no way, the performance of this mecha is really not high, after all, this is the lowest level of flying mecha, and it is almost used as a basic training mecha or even a high-level game, and it can't be too demanding. This is not a battle mech sequence in the first place!

Also, Qin Fei and Xu Weisong are just students, and they can't fly if they are given two high-level flying mechas. The B-class mecha still exceeded their control ability, and needed the help of virtual compensation technology to complete the control.

When Qin Fei broke through the speed of sound, Xu Weisong also discovered Qin Fei and tried to lock on to Qin Fei dozens of kilometers away!

But Qin Fei had already expected it, and he didn't rush to explore every bit of potential of the mecha; Before the flight, he had already scanned and calculated the cover conditions of the peaks and jungles along the way, so although Xu Weisong found Qin Fei, he found that he couldn't lock on.

Qin Fei was like a nimble swallow, hovering and shuttling between the ground, the jungle, and the lone peak, while maintaining a state of extreme acceleration.

This is the mech, and the mech is flexible and alive, not dead like an airplane! In the process of flying and accelerating, the mecha can still flexibly adjust the speed and direction. The whole sky is a stage for mechs, and there are no dead ends - if there is, it can only show one thing, the technology is not up to par.

Qin Fei flexibly bypassed the mountain peaks and clinged to the jungle, repeatedly crossing the "S" curve in multiple directions along the way, using the terrain to avoid Xu Weisong's lock-on and attacks, and taking the opportunity to break through the speed of sound as soon as possible.

But this state is not easy to maintain, especially when the speed is close to the speed of sound, as long as it is a blink of an eye, a negligence is easy to hit an obstacle; To adjust your flight condition at such speeds, it takes not only experience, but also courage! Few people dare to dance on the highway, and in fact the pilots are in a more dangerous combat situation!

In addition to courage, there is also speed and experience, which are the most basic elements of flying and fighting in the sky! Maybe a little bit of luck too.

"Roar......" Qin Fei roared frantically, and the roar was full of excitement and madness!

When you get to the sky, you have to control the aircraft honestly and carefully? Wrong, this is what ordinary people think! In fact, the more this is the case, the more likely it is to go wrong; Only the most daring can truly control the skies! Flying is a challenge in itself, and only the truly daring are qualified to take on the skies!

Seeing the mountain peaks quickly appear in front of him, retreat rapidly, and even appear virtual because the speed is too fast, Qin Fei was not afraid, but was so excited that he couldn't help himself; Qin Fei was surprisingly bold, circling in this forest of mountain peaks, it would be good if he didn't slow down, Qin Fei was still accelerating! If this is the real world, I really don't know how to write dead words!

The speed of "Boom ......" breaks through the speed of sound! The sound of the air cracking seemed to be the most beautiful praise for Qin Fei - although Qin Fei could no longer hear the "slow" sound behind him.

"Boom !!" A branch of a tree was knocked off, and the mecha narrowly flew past the side of the mountain; A trace of cold sweat oozed from Qin Fei's back.

The speed was too fast, and Qin Fei miscalculated the resistance of the air - when the speed broke through the speed of sound, the kinetic energy carried by the mecha was too strong, making the atmosphere not enough to provide enough resistance as before; Not to mention, the air here is a little thinner than sea level.

But fortunately, the mecha is a high-tech product after all, and it has a certain ability to correct itself for errors, and even the wings of the countless shrunken Gray Sparrow Mecha are made of super-strength materials - in fact, ordinary materials are simply not enough to support the strength of the mecha joints.

"It's now!" During the time when Qin Fei was accelerating, Xu Weisong had locked on Qin Fei many times, and when he saw Qin Fei's speed reaching the speed of sound, and seeing that Qin Fei's reaction speed was obviously slow, he immediately sneered. People who have no experience in supersonic flight, or who have little experience, will not understand the pressure of supersonic speeds.

The whole world seemed to speed up suddenly, and the brain couldn't handle the swarming information; Things far away suddenly appear in front of their eyes, and the next moment they are left behind, and everything has no time to think; New things are constantly appearing and disappearing, and many people will even strike because of inexperience, and the brain will strike because of too much information in a short period of time.

This is the high-speed world, where inexperienced people panic in an instant, and everything in the past world has changed; It seems that the flow of time has increased dozens of times all of a sudden, and of course you will feel that your reaction speed seems to be dozens of times slower!

Although Qin Fei is an elite after all, he also has some experience before; However, Xu Weisong is not a clay sculpture, and he has more experience!

In the more than 20 seconds that Qin Fei accelerated (because of the delay in turning), Xu Weisong had already flown more than 20 kilometers at supersonic speed, pulling a long sonic boom cloud and the wake of the plasma engine behind him, and pounced fiercely towards Qin Fei. At this time, Qin Fei's speed had just broken through the speed of sound, and Xu Weisong's speed had begun to increase to three times the speed of sound! The closed design and compact structure of the plasma engine, coupled with the excellent shape design of the mecha, allow the mecha to accelerate continuously; It is not like a normal (open) combustion engine, which becomes unsustainable when the speed reaches a certain level.

The X-ray radar/telescope accurately locked on Qin Fei at the first time, and the electronic stealth technology and optical reflection methods were useless for the X-ray hybrid telescope technology. In the past, when searching for planets of life in space, X-ray telescopes could even detect non-luminous planets dozens of light-years away, but now to explore the small flying machine at close range, it is really a three-fingered snail - there is no running!

At this moment, Qin Fei seemed to be a flustered sparrow, but Xu Weisong was a majestic falcon!

At the same time as the locked alarm sounded, Qin Fei had already begun to circle, and the mecha suddenly made a nearly ninety-degree bend in the sky, and suddenly shot out, and then made several consecutive turns, flexibly dodging behind the mountain peak. This series of movements was performed in a supersonic state, and it was extremely fast, and the mecha seemed to turn into a zigzag lightning bolt, quickly disappearing behind the mountain peak.

"Hell!" Xu Weisong scolded secretly, Qin Fei dodged too fast, so fast that Xu Weisong had no way to lock on, no way to attack accurately! X-rays can "see", just because the weapon can work!

This is the supersonic state, even if the computer wants to judge the opponent's flight status, it takes a little time, plus the time of reconnaissance, the overall time needs at least 0.11 seconds, but as the active flight party, Qin Fei hid behind the mountain in less than 0.1 seconds.

But Qin Fei dodged it, and it didn't annoy Xu Weisong; What was really annoying was for Qin Fei to discover himself! At this moment, Xu Weisong is piercing rapidly in mid-air, with three times the speed of sound, and at such a speed, it is not easy to turn.

Although the mech of the Asuka structure is not an old and bulky aircraft, it is also too fast. At such a speed, if you want to make a 90-degree turn, you must first ask whether your body can withstand the huge acceleration; There is also the fact that the Gray Sparrow mecha itself is a low-end mecha after all, and if you want to complete such a turn at three times the speed of sound, it is no different from suicide, and it is absolutely not negotiable to disintegrate in mid-air.

Sou...... Unsurprisingly, Qin Fei appeared in another direction; The first thing that appeared was to send a flower - a passionate missile! In fact, Qin Fei appeared on Xu Weisong's mecha reconnaissance radar at the same time as the missile, because Qin Fei launched the missile on the back of the mountain and followed the missile, and by the time the missile rushed out of the back of the mountain, the missile and the mecha had already completed the turn together and reached the speed of sound twice as fast as the DAD.

Sou...... The missile, which is not a mech, soon increased its speed to twice the speed of sound, and continued to accelerate rapidly. The "smart" smart missile does not need to be guided, and it has already locked on Xu Weisong.

Call...... The missile is moving irregularly in the sky, circling, interspersed, and various movements are continuous, although the whole is rushing towards Xu Weisong, but now the distance between the two sides is more than 60 kilometers, even if it is three times the speed of sound, it will have to run for a while; This time is enough for the laser to shoot down the missile. However, in order to prevent laser equipment and even weapons such as electromagnetic pulses, the missiles are maneuvering irregularly in the sky, making it almost impossible to lock on.

High-tech isn't just for fun. Even missiles with a certain amount of artificial intelligence will use mountains, jungles and other places to temporarily evade Xu Weisong's detection.

"Let's dance together!" Xu Weisong roared angrily. With a bang, a missile exploded, and the missile flew out at supersonic speed at the beginning - because Xu Weisong's initial speed was three times the speed of sound.

The two bird-shaped mecha were flying rapidly, dodging and hovering in the sky, and they would definitely not fly in one direction for more than 5 seconds, Qin Fei was climbing towards twice the speed of sound; And the two missiles are also frantically chasing the mechs on both sides. The missile launched by Qin Fei continued to accelerate, and soon reached five times the speed of sound, rapidly approaching the target. However, because Xu Weisong's initial speed was large, the missile had three times the speed of sound when it was launched, and it was the first to approach the target.

"Four kilometers apart, 5.7 times the speed of sound! Two seconds left! Qin Fei looked at the missiles in front of him. Because it's close enough, the missile doesn't fly around anymore -- it's time to take aim. It doesn't fly randomly, but it doesn't fly straight, but it moves forward in a relatively regular arc.

But only two seconds, the time is too short, the laser does not have time to lock, and there is not enough time to destroy the missile; Electromagnetic pulses are a good option, but it would be naïve to assume that missiles are all electronics. At this distance, the missiles have generally switched to mechanical control! At this distance, you don't need to aim "too much" at all, just fly straight ahead!

This is also a mecha, which can capture the state of missiles with the help of technology; Otherwise, it will be difficult for human eyes to catch the movement of objects at close range and at speeds of more than 100 meters per second. In fact, fast and fast enough is also a good way to "stealth".

Speed is captured through technology, and relevant information is projected into the mind through virtual technology and mind sensing technology. This allows the driver to clearly see the target and even the "trajectory" pre-calculated by the computer.

At this time, the most effective, and always the most primitive and reliable way, is to strafe intensively! A defense formed by a frenzied attack!

Sudden ...... The Gatling gun, or cannon, fires a barrage of 3,000 bullets per minute and 50 bullets per second, ranging from armor-piercing rounds, normal rounds, and grenades/explosive shells. In one second, about fifty bullets accurately covered a space of about three meters in front of you. The computer can do this perfectly, even without the driver's special attention.

Rumble! A bullet hit the missile, and countless fragments exploded in sparks; But countless fragments still flew forward fiercely, and with the power of the explosion, these even more hideous fragments could even reach seven times the speed of sound!

This is the gunpowder weapon, and this is one of the functions that no other weapon technology can replace! Even after the explosion, it still has strong lethality; Even many gunpowder weapons use this method to kill the enemy! Of course, under today's technological means, gunpowder, or explosives, is already very rich.

But fortunately, Qin Fei is no stranger to such explosions; Long before the explosion, the mecha had already flown dozens of meters; By the time the explosion occurred, it had escaped the attack of the debris more than 300 meters away. To be honest, the lethality of these fragments with a speed of more than seven or eight times the speed of sound in an instant is very terrifying, and there is no way to resist such an attack with the protective ability of the Gray Sparrow Mecha.

Dodging the bomb, Qin Fei immediately approached in the direction of Xu Weisong, the speed - three times the speed of sound! During the period of grappling, Qin Fei's mecha speed had reached three times the speed of sound.