Rebirth: Fight For Life

   Chapter 460 The first rocket recovery test

   The morning glow at dawn was gorgeous, Guo Yue, Gu Song and Jian Yushu were standing in the control room together.

   This is a small control room beside the test launch site, three people are standing by the window watching the rocket standing alone in the distance. Before the sun shines here, the distant mountains and the morning glow against the nearby rockets are a fascinating painting.

   "Can it be successful?" It was Jian Yushu who asked.

   "Is there any reason for such a small experiment to fail?" Gu Song didn't care.

   He also knew that there was no way to do it in one step, Guo Yue wouldn't play with him if his steps were too big. But it was originally planned that even if the load-entry test was not carried out, at least the rocket had to fly to a certain orbital altitude and then be recovered.

  As a result, at Guo Yue's strong request, he changed to flying up and falling down.

   If it wasn't for Gu Song's repeated emphasis, and the banknotes were tossed loudly, it is estimated that this experiment would have only been able to fly up a few hundred meters and then fall.

   Wasn't that a small gun battle?

   Now, prepare to fly 5 kilometers high, then hover for 1 minute, and then recycle at a fixed point.

   Just such a small experiment was enough to make the people in the control room nervous.

  Because of the groundbreaking!

   Because there is no need to enter orbit, it does not matter whether it is a suitable launch window or not. The reason why I chose it in the early morning is nothing more than to see the weather conditions. The observation conditions and wind speed and direction at this time today will be more suitable.

   "Launch countdown, 5 minutes to prepare!"

   The quiet voice of the launch commander made the three of them start to get a little nervous.

   Even Gu Song, although full of confidence, was a little afraid that when it came time to see Zhenzhang, he was afraid that he would not be a good teacher.

   After all, who knows, will there be an accident?

   Maybe a small part problem will cause the launch to fail.

  Time passed by minute by minute, and on the launch platform, this small rocket did not have any complicated pre-launch preparations.

   Unlike large rockets, from production and assembly, to delivery to the launch pad, to refueling and final monitoring, and then gradually deploying the fixtures before launch. This small rocket, after standing there, just waits for the ignition to launch.

   is mainly to test the engine that has been fired many times, as well as the rocket attitude control system, whether it can achieve launch, hover, and smooth landing recovery.

   "2 minutes to prepare!"

   The control room was quiet.

  The staff responsible for data monitoring and recording have entered the state.

   "1 minute ready!"

   Everyone was focused.

The    test will only last a few minutes, but now every minute and every second is very frustrating.

   “Countdown to 30 seconds. 30, 29, 28…”

   Every second countdown, there will be specific operation procedures waiting for the staff to execute.

  Before the launch of the rocket, a strict countdown process ensures every step of preparation and inspection. Once a problem is discovered, or the real-time data feedback deviates from the previous digital or physical exercise, the launch can be aborted in time.

   After all, there is no turning back when the bow is drawn. As long as the fire has not been ignited and a problem is found, everything can be restored.

  If it has been ignited, it is a success or a failure, and it is no longer so controllable.

   The current technology can only do this, which is impossible.

  The countdown to the expensive rocket launch is equally important.

   "10!"

"9!"

"8!"

  …

   The most tense moment finally arrived.

   With the commander's order: "3, 2, 1, fire!"

   Not far away, the tail of the rocket spurted out high-speed flames instantaneously. Even if he was so far away, Gu Song felt a faint sense of warmth, and his palms began to sweat.

  The rocket took off slowly at first, and then accelerated rapidly.

  The tail flame seemed to be longer, and in the control room behind him, there was a dense exchange of sounds.

   "The track is normal!"

   "Inertial navigation system is normal!"

   "Program turn begins!"

  …

  Gu Song, Guo Yue and Jian Yushu could only look up at the gradually rising rocket there.

   No cheers, no excitement, more anticipation.

  The orbit is calculated before each rocket is launched.

  The change of the rocket position is determined by the thrust and the rocket attitude. On the premise that the launch track has been set, the central control computer will output signals to control servo mechanisms such as air rudder, gas rudder, and vector nozzle according to the navigation data and the real-time attitude data transmitted by the inertial navigation and other instruments on the rocket. The rocket tries to maintain orbital data as much as possible.

   Now that the rocket has lifted off, the control system is trying its best to maintain the attitude of the rocket so that it can follow a predetermined trajectory, fly to a predetermined altitude, and then…

   "Real-time altitude 4683 meters!"

   "Reduce thrust!"

   "Real-time altitude 4986 meters!"

   "Vector Control Starts!"

  Gu Song stared intently at the little bright spot in the sky.

   The hovering link of this test is of little significance in the real rocket recovery process. More, or to test the ability to control the engine.

  To achieve rocket recovery, it is like the original skill mode rudely, but also with delicate positioning and delicate micro-manipulation.

   All of this is achieved through the precise control of the rocket attitude by the rocket central control computer program.

   "Real-time altitude 5008m, 5009m, 5008m..."

   Listening to the data continuously reported behind him, what Gu Song and the others saw in their eyes was a small bright spot, like a small star in the sky in the early morning, standing there motionless.

   Time seemed to have passed for a long time, and at the moment when the predetermined time target was reached, the commander shouted: "Start the vertical descent!"

   The muscles on Guo Yue's face trembled involuntarily. The first two steps should have been completed, and the most crucial part is here.

   "Height 4963 meters!"

   "4608 meters!"

   "Slow down at high altitude! The engine fires for the first time!"

   "Propellant sinking is normal!"

   "The Buffer Bracket Expands!"

   "Second ignition!"

   "Enter subsonic speed, 322 meters per second!"

   In the eyes of the three, the rocket has returned quickly.

   Different from the time of launch, you can vaguely see that the tail of the rocket has four feet, which are the buffer brackets.

   "The track is off by 89 cm!"

   "Height 983 meters, speed 76 meters per second!"

   "The engine fires for the third time!"

   "The track is off by 16 cm!"

   "Height 267 meters, speed 23 meters per second!"

   Although thin, the rocket is clearly visible. From a little distance, the speed of the rocket's descent does not seem to be fast.

   But now the most critical time has come. At the moment when it is about to land, the engine has to ignite for the last time to offset the final speed of rushing to the ground, while maintaining the attitude of the rocket.

  Only if this step is successful, the buffer bracket can support the rocket, and the center of gravity will not be shifted too much, and the explosion will not occur if the speed is too fast!

   "Height 20 meters!"

   "Fourth ignition!"

   At this point, everyone is staring at the rocket in the distance.

   I saw a dazzling fire spurt from the tail of the rocket, and the speed of the rocket's descent was obvious.

   They couldn't see the tiny airflow that the other vents used to control attitude, but the rocket slowed down and landed on the launch pad. It swayed a little, then stood up firmly!

  The rocket engine was turned off, and there was only smoke and dust in the distance.

  The control room was silent.

  One second, two seconds, three seconds…

  Suddenly, there was a burst of cheers in the control room!

   Guo Yue put his arms around Gu Song's shoulders, laughing loudly: "Success! Success!"

   Gu Song had a smile on his face.

   Although it only exists as two kicks, the first test was successful.

   Jian Yushu excitedly looked into Gu Song's eyes. In his opinion, this was the first step that Flint Aerospace took to the sea of ​​stars.

  Gu Song looked at the little rocket that had just made history in the distance, but he seemed to see a future with greatly improved carrying capacity!

   Speed ​​up the rhythm of the experiment, and it is serious to upgrade the rocket quickly!

   (end of this chapter)