I ask you to build tractors, but you build rockets?

This time, it was the damaging effect within the atmosphere.

The test object was a specially modified GJ-21 "Meteor" jet.

This Meteor high-education aircraft has undergone an in-depth transformation and is completely unmanned flight. Everything that can be discarded has been removed. The fuel level is only half filled, and the weight has been reduced by about 20%.

An ablation material of about 3X3 meters in size is attached to the back of its body, which appears gray-black. This is the target Qianjunbang No. 1 is preparing to irradiate.

After extreme weight reduction, the GJ-21 will dive slightly after rising to an altitude of 21,500 meters to reach a speed of Mach 2.1, which will be maintained for about 20 seconds.

In the eyes of the nearby air traffic control, an unmanned Meteor trainer aircraft that had been registered in advance for the purpose of testing a new improved engine took off from the base. It climbed quickly as soon as it took off. It seemed that it was going to high altitude for high-speed testing.

The Air Force radar operator checked the number, confirmed it was correct, and left it alone. This kind of unmanned test flight flew at a high altitude and would not interfere with other aircraft.

The internal code name of this unmanned Meteor jet is 2231, which means the 31st production model of the second batch. At this time, it is starting to hover under the control of the ground.

Lin Ju nervously looked at the staggered route displayed on the screen in the secret center. It showed that it would take another 2 minutes for Qianjunbang No. 1 to reach the area where it could launch an attack.

Three low-orbit communication satellites and a geosynchronous orbit "Gaoshan" platform send signals to the base at frequencies beyond normal communications, and at the same time provide auxiliary calibration for Qianjunbang-1.

In order to simulate the real situation, Jet 2231 turned off the satellite navigation. To locate the Qianjunbang-1, it must first rely on low-orbit satellite detection, and then activate its own comprehensive precise positioning methods including optical, infrared, and electromagnetic waves to lock.

The area where 2231 hovers above the base is just a very small grid for the Qianjunbang No. 1 at an altitude of 270 kilometers. The attack window is only 2 minutes in total. Each full-power attack requires a 150-second cooldown, so there is only one chance. .

Lin Ju looked at the sky from the window of the bunker. It was a rare cloudless time, and the attack effect should be ideal.

When Qianjunbang No. 1 was about to enter the attack window, the operator of Jet 2231 received an order to put the engine into an overload afterburner state, providing more than 16 tons of thrust at the cost of life, and overloading the engine rotor speed by a full 35%.

The speed of the jet immediately increased rapidly, and the altitude also rose all the way to 21,000 meters, and then the final acceleration was carried out in an irregular arc-shaped route with a small depression angle according to the setting.

The nearby radar station immediately noticed the conspicuous high-altitude highway of 2231, but didn't think much about it because it couldn't be seen anyway.

But in the secret control center of Qianjunbang No. 1, more than a dozen engineers were nervous and paying close attention to the status of Qianjunbang No.1.

The construction cost of nearly 3 billion yuan and more research and development costs were not in vain. In the 17th second after entering the attack window, the Qianjunbang-1 satellite computer automatically searched and locked 2231.

"Target locked, fine-tuning aiming in progress!"

At an altitude of 270,000 meters above the continuously accelerating Meteor high-education aircraft, the RCS of Qianjunbang-1 carefully worked for a few seconds under the control of SC09, and the cylindrical satellite moved slightly imperceptibly.

Another four small lasers used for calibration try to illuminate the ablative insulation coating in the middle of the 2231 body. It is prepared for objects that re-enter the atmosphere and is very resistant to high temperatures and friction.

The reflected laser light will be different due to the shape and material of the irradiated part. This slight difference is the basis for the deflection of the gyroscope and the prisms inside the 11 laser lenses under electromagnetic action.

At 55 seconds after entering the attack window, the onboard computer felt that the light returned by the calibration laser was stable and consistent with the characteristics of ablative paint.

"Calibration completed, launch attack!"

The staff on the ground only announced the status. In fact, except for issuing the target selection, everything else was controlled by the computer, otherwise it would be too late.

Lin Ju and Zhao Xiaowen both felt nervous. With an investment of more than 5 billion yuan, the effect would depend on this time.

Under the bright sunshine in the afternoon, a laser beam spanning 270 kilometers passed through the thick atmosphere. After being blocked by numerous obstacles, the energy attenuated by nearly 30%, and diverged as the distance increased. Finally, when observed on the ground, it had a diameter of approximately 3 meter light beam.

The moment Qianjunbang-1's seven 140-kilowatt gas lasers were activated, the irregular paint surface on the back of the Meteor jet, which had reached Mach 2.13, was covered by the prototype's light spots.

Under the energy transfer of high-frequency photons, the temperature of the paint rises rapidly, and the material originally used to resist atmospheric friction at Mach 20 speed begins to melt and disappear layer by layer with the opposing high-speed airflow.

In the control center, the temperature sensor on the surface of 2231's body still showed no abnormalities. At this time, the irradiation time returned by Qianjun Rod No. 1 had reached the 19th second, and half of the maximum 40-second follow-up irradiation time had passed.

20 seconds, 21 seconds, 22 seconds... 33 seconds!

The value of the temperature sensor placed under the ablative paint on the back of the machine and on the surface of the machine suddenly jumped from more than 100 degrees to four digits almost instantly. It turned into "E——" before it could be seen clearly.

Zhao Xiaowen immediately looked at the radar that had been tracking 2231, and the radar reflection projection on it began to change.

When all the ablative paint covering the back of the aircraft is lost, the aircraft body will face a laser of more than 680 kilowatts. The skin will immediately twist and deform under the high temperature. The airflow exceeding twice the speed of sound will roll up the softened skin and fly away, leaving the fragile interior The structure is also exposed to air and light.

The location of the ablative paint is the center of the aircraft body. When it begins to deform, the pressure on the front of the aircraft begins to compress and bend the aircraft body. The automatic flight control tries to adjust the rudder surface to save the aircraft, but the aircraft has begun to break uncontrollably backward.

It actually only took 7 seconds from the 29th second when the ablation material burned through until the radar area of ​​2231 turned into an irregular shape. At the 40th second, Qianjunbang No. 1 lost its attack target and automatically shut down. laser.

The high-education aircraft flying at 2 times the speed of sound has been broken, collided, and torn apart, turning into a pile of debris of different sizes that began to rotate and fall. The calibration laser can no longer search for the original signal.

Qianjunbang-1 and several low-orbit satellites that helped it roughly searched the surrounding area of ​​50x50 kilometers and found no similar signals to the target. They determined that the target had been destroyed and sent a "message that the attack was completed and the target was destroyed" to the ground. .

From the time Qianjunbang No. 1 entered the attack window, it took a total of 95 seconds to complete the entire process from searching, locking, attacking, and destroying the target. It only took 40 seconds to ablate to complete destruction, and 33 seconds to burn it out were enough to deal with it. The ablative material is loaded with atmospheric friction and high temperature.

There is no doubt that even if it is just a verification machine, Qianjunbang No. 1 has the ability to be put into practical use.