"Altitude 700, speed 535!"

"Altitude 1100, speed 710!"

“……”

After Lei Qing piloted the plane to take off, he turned 90 degrees in the direction of Yinchuan and began to maneuver the plane to climb slowly.

He was not in a hurry to turn on the afterburner, and kept the military thrust accelerating, waiting until he climbed to 5,000 meters and exceeded the speed of sound before testing the top speed.

In the mystery of supersonic flight, in fact, the engine does not occupy a large factor as the design of the fuselage, and a good shape that matches the optimal engine working range is the focus of the design, but this often requires a compromise on avionics and bomb bays, and it is necessary to accurately control the balance point.

The 62-ton fuselage is actually incredibly light to handle, and the speed of the climb is very fast, rising to an altitude of 5,000 meters after only 3 minutes of takeoff, and just breaking the speed of sound.

After crossing the sound barrier, the noise in the cabin instantly dropped by a notch, and Lei Qing prepared to remind the escorted J-20B:

"Swift, I'm a peregrine falcon, I'm going to accelerate, please keep a safe distance, please keep a safe distance!"

"Swift understands, Peregrine Falcon, I wish you a good wind!"

The J-20 call sign accompanying the flight is "Swift", which refers to the white-throated pintail swift that flies extremely fast in nature, and the "Peregrine Falcon" can reach a speed of more than 400 kilometers per hour when diving, making it the fastest bird.

After responding to the "Swift", Lei Qing checked the pressure and temperature of the cockpit and flight suit, and finally turned on the afterburner.

The "Swift", who was accompanying the flight to observe, saw from a distance the blue tail flame of the "Peregrine Falcon" suddenly lengthening close to half of the fuselage, and the two planes turned on the afterburner at the same time, but the acceleration of the J-20B was obviously not as fast as that of the Snow Bird.

Lei Qing only felt a slight shock in his body, and then the numbers on the altimeter and speedometer began to beat wildly.

The snowbirds can only fly at a thin altitude of more than 47,000 meters, but from now on, the speed of the aircraft begins to increase rapidly, and it is unbelievably fast.

The radar that locks on the ground to the two planes is not an ordinary radar, although the Xuehu in the test flight stage is not coated with a stealth coating, but the general radar when flying at Mach 10 cannot keep up with its speed at all, and it must be detected by using a special radar for ballistic missiles and rockets, and the J-20B solves this problem through the Lombard lens (an external device that destroys stealth to allow the radar to detect).

In the tower of the desert base, Anderov and Dou Ping watched the snow hoofs climb to 29,000 meters in just 5 minutes, and the speed has exceeded Mach 3.6 to break through the thermal barrier, and the J-20B has been thrown away from it!

Lei Qing in the cockpit could clearly feel the downward and backward acceleration at the same time, if he didn't know what kind of plane he was flying, he would even think that it was a speedometer convulsion!

35,000 meters, 40,000 meters, 45,000 meters, in the 8th minute after the afterburner, the speed has rushed to Mach 7!

In the frenzied climb that made the sky and the ground tremble, in the 16th minute after takeoff, the climb rate finally began to decrease due to the marginal effect, and the acceleration was reduced from 50,000 meters, and the speed had exceeded Mach 9.2 at this time!

"Cave! Report the situation! ”

"All good, all good! I can see the clouds receding now! The edges of the portholes are glowing, glowing orange-red! ”

It's not just the clouds, because the speed is so fast, the surrounding sky can see a noticeable retreat with the change of light, and in a few minutes, the sky has changed from a blue to a deep blue that is almost black, and the curvature of the earth is already very obvious, no different from space flight!

The acceleration has been lowered but not stopped, and the designed altitude limit of 52,000 meters has been broken, and when the altitude exceeds 54,000 meters, the numbers on the speedometer are already incredible:

[ASL：54570m] [SUF：3304 m/s]

The ground tower was also dumbfounded when it saw the speed transmitted by the satellite, 3304 meters per second, 11.4 times the speed of sound!

In the time that everyone was stunned, the altitude rose to 56,300 meters, and the speed increased to 3,347 m/s, 11.54 times the speed of sound.

After 22 minutes of takeoff and 19 minutes of afterburner, the speed of the snowbird finally stabilized at 11.5 times the speed of sound, and it flew wildly at an altitude of 56,000 meters.

Now it flies a distance of 3.35 kilometers every second, and flies a distance of 12,000 kilometers per hour, and it only takes 7.5 minutes to reach the Xinyuan-Beijing route that Lin Ju often flies, and it only takes 40 minutes to reach the 8,000-kilometer transoceanic route.

Lei Qing, who was already getting goosebumps all over his body, glanced at the parameters of the extravehicular sensor: the nose temperature was 1140 degrees Celsius, the average surface temperature of the body was 811 degrees Celsius, and 89% of the fuel was left.

It is no exaggeration to say that the current Lei Qing is not much different from driving a space shuttle back to the atmosphere, and the body insulation material of the Snow Bird is the fourth-generation improved thermal insulation protection technology from Xinyuan and the same source as the Tengyun Project!

Dou Ping and the researchers on the ground were so shocked that they couldn't speak, the design of the Snow Bird was better than expected, at this altitude and speed, it was impossible for any fighter to shoot it down, and even the radar was very difficult to lock.

The radar stations of many military regions along the way can only find it by relay detection, and if you add stealth paint, you can completely hide it in the radar's display screen with a little maneuver.

Attendant A of the Alxa Radar Station saw that he was getting closer and closer in the point of light and walked out of the control room directly, and then saw a silent white meteor in the evening sky.

“……”

It's over, 12 times the hypersonic speed is too fast, even if it collides with the thin atmosphere of more than 50,000 meters, the surface of the body begins to glow, and the oblique shock cloud generated by the nose impact on the air spreads at least two or three kilometers, so that a triangular outline can be directly seen on the ground spreading, and the snowbird itself is extremely conspicuous.

"Squad leader, the target is lost!"

Duty Officer B in the control room let out an exclamation, but heard the squad leader outside full of complicated complaints:

"It is said that the new Project 10 is a stealth aircraft...... This, are they going to engage in optical stealth? ”

Duty Officer B, who didn't know the truth, also leaned over to the window, and then opened his mouth wide in the same shock.

Stealth? Hide a fart!

But...... Even if it is discovered, it is unlikely to be shot down, and the plane that flies at Mach 12 must be at least a missile at Mach 20, and only a ballistic missile can reach this extent, so let it go against the aircraft?

Duty Officer A: "Instead of letting our radar find it, why don't we set up a few cameras, it's too provocative for this thing to appear in the sky over the enemy in the future, right?" ”

Duty Officer B: "Squad leader, in the future, we will be even more arrogant than when Ami drove the Blackbird." ”

Duty Officer A: "Hey, it's better to be so arrogant, it's better to fly over Ami's land!" ”

The complaining Lei Qing on the ground didn't know anything, and he now found a serious problem:

He only walked down slightly, and now he has flown 1,900 kilometers and has passed over Yinchuan!

Asking for a monthly pass......

(End of chapter)