In the sky, the six Mirage 2000s, which were rushing to the valley where the terrorists were located, suddenly received an order from the command center in New Delhi, requesting that two planes be arranged to follow the three stealth fighters monitoring China, and at this moment, the position of the six Mirage 2000 was exactly 130 kilometers in the direction of Xia Yu and the three of them at eight o'clock, and it was only 180 kilometers away from the valley where the terrorists were located.

The Mirage 2000 with the host radar turned on was soon discovered by the passive radar of the J-20, because of the timeliness of the order transmission, at this time, Xia Yu and the three had not yet received the notice from the rear command center, so they thought that the two Mirage 2000 were coming to intercept themselves. But at this time, there was no time to entangle with the other party, so Xia Yu directly gave an order, asking Hongqi 2 and Hongqi 3 to lure the two Phantom 2000s away, while Xia Yu himself continued to fly towards the valley at full speed.

After Hongqi 2 and Hongqi 3 did take the two Indian planes off the course, Xia Yu received the news from the ground at this time, and he did not hesitate at the moment, and kept flying towards the set target at high speed. By this time, Hongqi 2 and Hongqi 3 were already more than 70 kilometers away from Xia Yu. Xia Yu, on the other hand, is only less than ten kilometers away from the target.

Ten kilometers, for a fighter with a speed of up to Mach 2.5 per hour, how long does it take to fly? A simple conversion can clearly know: the speed of sound propagation is about 340 meters per second, and the speed of Mach 1 is double the speed of sound, and Mach 2.5 only needs to multiply 340 by 2.5 to get a speed of 850 meters per second. And 1 kilometer is 10000 meters, 10 kilometers is 10,000 meters, and the number obtained after dividing 10,000 by 850 is the time it takes for the plane to fly 10 kilometers.

11.764 seconds, this is the time it takes for Xia Yu to drive the J-20 and fly to a target ten kilometers away at a speed of Mach 2.5, but Xia Yu can't always maintain a speed of Mach 2.5 to fly to that position, because Xia Yu still needs to attack the interior of the valley. However, at Mach 2.5, it is impossible for the plane to open the magazine to drop bombs, and the violent air currents will tear the plane to shreds, which will not change in any way because the plane is made of hard alloy.

Xia Yu needed to slow down his speed to have a chance to attack, so that the plane might arrive by five or six seconds, which didn't seem to be a big problem. However, isn't it really a big deal?

Just when Xia Yu accelerated his dive to the required height, and was thinking about preparing to slow down and make a left turn maneuver, so that the plane could fly in along the entrance of the valley to attack, the frightened voice of the rear command signal soldier suddenly came from the headset: "The missile is ignited!" ”

What the? The missile ignited?!

Xia Yu was shocked in his heart, that valley was already in front of him at this moment, Xia Yu only needed to pull out a maximum instant disk after slowing down, and then add a roll to adjust the course, he could directly drill into the entrance of that valley and launch an attack on the missile launcher.

But it takes at least six to seven seconds to do this set of actions, and if the missile has been ignited, Xia Yu will not be able to catch up at all. The brain was spinning in an instant, and Xia Yu quickly made a decision that he had to attack in the shortest possible time. Then Xia Yu made a flight maneuver that could only be called death.

The altitude is 12000, the airspeed is Mach 1.7, the horizontal roll becomes the flight attitude of the cockpit facing downward, Xia Yu controls the vertical tail to deflect inward at the same time, so that the contact area between the two vertical tails and the air reaches the maximum, and the huge air resistance immediately makes the airspeed of the J-20 drop rapidly.

This is thanks to the design of the J-20 differential vertical tail, so that the two vertical tails can only move in one direction synchronously unlike ordinary vertical tails, and the differential vertical tail can be controlled into a deflection of 1.5 and a deflection of minus 1.5, so that the vertical tail itself becomes a speed brake. Although the inclined vertical tail will produce yaw moment, the pelvic fin and vector nozzle will assist the J-20 to maintain its original flight course under the automatic adjustment of the flight control system, so the stability is still excellent, which is one of the main reasons why the J-20 canceled the speed brake design.

Xia Yu used the vertical tail to slow down, which was only the first stage of his flight maneuver, because such a deceleration rate alone was not enough for Xia Yu to attack when he flew over the valley, not to mention that the current altitude was still too high, even if the aerial bomb was dropped, there was a very high chance of deflecting, this was not training, Xia Yu did not have a chance to do it again, so he completed the inverted flight in J-20, When the airspeed dropped to 1.4, Xia Yu pulled the joystick to the maximum, and the canards, ailerons, side strips, flaps and vector nozzles made the deflection angle that Xia Yu wanted at the same time, and then, the J-20 in the upside-down state completed the action of raising its head almost instantly.

In this flight attitude, the nose of the aircraft was suddenly lifted at the fastest speed, and the angle with the horizon reached 130 degrees, which was equivalent to Xia Yu doing a cobra action upside down, and the huge air resistance was directly applied to the entire belly of the J-20, in just three seconds, the airspeed dropped from Mach 1.3 to Mach 0.8, and the sudden increase in powerful overload not only made Xia Yu feel as if he was hit by a high-speed car, but also made Xia Yu dizzy and tinnitus, his eyes were full of Venus, and even the J-20 itself was crunching. This is still Xia Yu has already carried out a deceleration operation, otherwise he has done a stall flight action at such a high speed, Xia Yu and J-20 may not be able to withstand such an overload, and it is not necessary to destroy the plane directly and kill people.

Although the body was very uncomfortable, and there was even a phenomenon of black vision that had not appeared for a long time, this could not shake Xia Yu's determination, because the J-20 had already crossed the mountain peak with its nose pointing to the ground as Xia Yu thought, while falling wildly at altitude, aimed at the interior of the valley.

A minute ago, when Xiao Zhang on the mountain peak was surrounded and the wolf bèi counterattacked, Burhan took advantage of this opportunity to rush to the laptop under the missile launcher in three or two steps, and without hesitation, he pressed the three buttons needed to launch the missile at the same time, as the technician said before.

Just after Burhan finished this action, a one-minute countdown window popped up on the laptop's display, and the blood-red number in the timekeeping window began to decrease from 59 seconds to each second. Burhan was ecstatic, shouting loudly for his men to leave the area around the missile launcher, even if he was not a professional technician, Burhan knew that the huge tail flame from the thruster would be very dangerous when such a huge missile was launched.

At Burhan's shouts, more than a dozen terrorists hurried into the distance, until they hid behind some large rocks or bunkers that they thought would be enough to protect themselves, and the terrorists stopped and prayed to their Allah while watching how the ballistic missile, which was 20 meters long and weighed about 16 tons, flew into the sky.

How long is a minute? Burhan, for his part, had never noticed that the one-minute wait would be so long, as if it felt like a century had passed, and the missile still hadn't been ignited.

However, for Xia Yu, this minute was so short. Accelerating down from an altitude of 18,000 meters, the airspeed was even raised to Mach 3.2, far exceeding the maximum design Mach number of Mach 2.5 in level flight. Xia Yu not only had to directly descend from the height of the maximum ceiling to a low altitude less than 1,000 meters above the ground, but also needed to perform a violent deceleration, complete the maneuver at a high angle of attack, change course, launch an attack, and so on. This qiē needs Xia Yu to complete within a minute, and the original completion of this series of actions is already a huge challenge for Xia Yu or J-20.

But as the old saying goes, the plan never changes quickly, and the domestic command center, which has always maintained real-time monitoring, discovered the tail flame of the missile, and the frightened screams of the communication soldiers were directly transmitted to Xia Yu's ears through the guò radio, and at this time, Xia Yu had not even completed the scheduled deceleration action.

Xia Yu, who was forced to change his plan, could only use the most dangerous method to complete his mission. Do a Cobra maneuver at the stage of supersound? I am afraid that no pilot in the world can do that, because the human body simply cannot bear such an overload, and the result of reluctant operation can only be that when the angle of the nose of the plane is raised more than 20 degrees, the pilot will lose consciousness and then the plane crashes, which the Americans have learned a real lesson.

But Xia Yu had no choice, if he didn't want the missile to take off, Xia Yu could only fight with his own life, and Xia Yu was also willing to believe in the starry sky's strengthening of his body, so Xia Yu did it.