Chapter 313 (2/2)

”30.29.28... 3.2.1 ignition!” with the order of the launch director, the rocket engine was successfully ignited again. Only the rocket flight rules in the control room changed. Finally, when the return trajectory of the rocket overlapped with the launch pad on the side of Tiangong technology, the person in charge directly ordered the rocket engine to shut down again.

At the same time, the camera installed on the rocket also faithfully records the changes of the rocket's flight attitude and flight rules at this time.

Unlike ordinary recoverable rockets, when they return to the atmosphere, the Rockets return to the atmosphere in an upright state, but this time the rocket returns directly to the atmosphere with the head of the rocket.

After all, the rocket not only did not abandon the fairing, but even there was an aerodynamic rudder on the rocket, which could glide in the atmosphere and adjust its attitude.

At the same time, the rocket control center is also doing its best to collect all the data when the rocket returns to the atmosphere.

These data will also be retained after collection, which can provide real and effective data support for the larger recoverable rockets and aerospace vehicles designed by Wang Bin and Tiangong technology in the future.

Of course, these data are not only used by Tiangong technology itself, but also can be used as data support when officials and even other enterprises want to use them. After all, China is different from foreign countries, especially in aerospace. Of course, even so, these data will not be used unconditionally by any domestic official or enterprise, but will be provided for compensation.

As the rocket finally entered the atmosphere, the rocket fairing began to have a huge friction with the high-altitude atmosphere, and the whole fairing began to become red. According to the sensor inside the rocket fairing, the maximum surface temperature of the fairing had reached more than 2000 degrees, and began to rise rapidly with the temperature inside the fairing.

However, although the temperature of the simplified body and other parts of the rocket began to rise in the friction with the atmosphere at this time, it did not rise to 2000 degrees like the fairing, but only a few Baidu.

And at this time, the speed of the rocket, also under the friction with the atmosphere, began to decline sharply. From the speed of about 2000 meters, it soon dropped to less than 1500 meters per second, and this speed is still declining rapidly.

When the rocket reaches the middle layer of the atmosphere, the speed of the rocket is only about Mach 3, and the aerodynamic rudder of the rocket can work. That is to say, the ground can finally control the rocket through the aerodynamic rudder again.

This greatly relieved everyone. After all, before the rocket entered the escape layer, because the rocket engine did not work, it was in a non powered situation, and because the atmosphere of the escape layer was very thin, the aerodynamic rudder could not produce any effect at all. Therefore, at this time, the rocket was most likely to lose, even if it could be controlled, When the speed of the rocket is too fast and must be controlled, if the flight attitude of the rocket is wrong, it is easy to cause the disintegration of the rocket.

Now, the rocket has returned to the controllable range. For the ground personnel, the most difficult time has passed, and they naturally have more confidence in the successful recovery of the rocket.

With the control of the controller, the rocket soon reached the sky over the Tiangong science and technology launch site. At this time, the person in charge gave a big order again, and the fairing of the rocket was slowly opened again. All of a sudden, the head resistance of the rocket increased, and the rocket changed its flying attitude into a tail down attitude, and with the opening of the fairing, The air resistance of the rocket also becomes greater, and the descent speed of the rocket naturally becomes slower.

And when the rocket is only about one kilometer from the ground, the parachute inside the rocket fairing is also opened, and the descent speed of the rocket is quickly reduced to only a few tens of seconds per second.

Finally, when the rocket is less than 100 meters from the ground, the rocket engine is ignited again. Just when the descent speed of the rocket becomes zero, the rocket has just stopped at the predetermined parking point, and the rocket fuel has been exhausted at this time.

In other words, the smooth landing of the rocket represents the successful completion of the launch.