(Today's birthday, I have to play with my daughter for a day, so I guess there are only two updates.)

Even though many satellite launches have passed, and the prototype of Long March 3A, the Long March 3A, was only launched for the first time. Because the gas generator of the third-stage engine was oxygen-rich combustion, the thrust suddenly dropped about 5 seconds after the second start. The satellite did not enter the geosynchronous transfer orbit, and the launch failed once. The subsequent several launches were successful, and Mr. Qian still dared not relax his vigilance.

During the launch of a space satellite, any time must be taken seriously and cautiously.

The Republic does not have as huge financial support as the United States, nor does it have as crazy as the Soviet Union that almost invests the entire country's income.

Failure is the mother of success, but the aerospace science and technology workers in the Republic never dare to think about letting the mother of success appear first and then giving birth to success.

"Every time of launch, everyone must treat it as if it was the first time. Even if mature technology has been successfully launched before, it does not mean that it can be successful every time. In any detail, even if a small screw is not screwed to the position, it may cause the launch failure!"

This is the words engraved in the hearts of every launch site staff.

Liu Yijiu understood these subtle work, especially many inspections.

Space is nothing else, and no one can guarantee that every launch will be successful.

Only when the launch mission is over, the satellite enters the predetermined orbit and starts working can all personnel breathe a sigh of relief.

Long March 3A is only a civilian model, but it launches the first experimental satellite of the Republic's global satellite communication positioning and navigation system. Once it fails, the consequences are serious. This is what everyone knows. Even the rocket itself is verified by some missile technologies.

The fuel filling time was very long, and Mr. Qian and others almost stayed in the control room without leaving. They kept paying attention to the progress of the filling, and monitored all the rocket's systems and satellites to ensure that they could troubleshoot the fault as soon as possible when danger occurred.

Until four o'clock in the morning, the red alarm in the control center flashed, reminding everyone that the fuel filling work had been completed.

"Cleaning the site right now! Carry out the last inspection!"

All unrelated equipment must be evacuated from the site, and all personnel must also be evacuated. Another inspection will be conducted before launch.

However, this inspection work is much simpler than before.

After adding fuel, it is impossible to enter the rocket for inspection, and it can only be carried out through various systems.

Work continued and everyone became nervous.

Every launch, the more you go to the back, the more nervous you are, because there are no problems ahead, and if you are not sure, problems may arise during launch.

Fortunately, as before, there was no problem at all.

As time goes by, all the launchers have been cleared.

The entire launch site has completely entered the launch state.

There are more than ten minutes left before the launch will take place.

Liu Yijiu's heart was also nervous.

After the satellite ascended to heaven, many of their projects could be verified and continued.

At that time, he felt that it was getting longer and longer.

It was not until Mr. Qian heard the sound of the sound of the loudspeaker, "The countdown for ten minutes of launch, the inspection of each system, and the radar of each monitoring station turned on..." that he realized that sweat had already emerged from his back.

You know, this is the desert at night!

With the report of the monitoring personnel of each system, all the system status was normal, and Liu Yijiu breathed a sigh of relief...

The entire launch control center was sleepless all night.

The entire launch site area is displayed on the large screen of the control center.

Since the rocket is strictly confidential before launch, the launcher wraps the rocket and satellite inside.

"The launch tower unfolds..."

The command was issued, and the box in front of the launcher was clearly seen in the large screen, unfolding to both sides, and then the white painted rocket inside was exposed. The rocket standing upright was fixed by the swing pole.

"Thirty seconds!"

Until thirty seconds before launch, the swing rod of the fixed rocket began to rotate to both sides.

"Twenty seconds!"

“10!”

“9!”

...

"ignition!"

In the control room, the technicians who controlled the remote ignition system pressed the remote ignition system.

The screen is not moving.

Everyone's hearts were raised.

After a second, the engine at the bottom of the rocket suddenly squirted out orange flames, and smoke quickly ejected from the channels on both sides of the bottom of the launch pad.

"boom!"

At a distance of not far, the control center could still hear the roar of the rocket engine when it squirted out flames violently.

The rocket began to rise slowly under the flames that were becoming more and more blazing at the tail flames, and its speed became faster and faster.

"Execute the program turns!"

Before everyone could breathe a sigh of relief, they began to operate the rocket's flight posture.

"Dongfeng Optical Radar tracking is normal! Telemetry signal is normal!"

...

Almost every ten seconds, the technicians at the Dongfeng Monitoring Station report their status.

Liu Yijiu, who was sitting next to Mr. Qian, even felt that Mr. Qian was trembling slightly. His hands were crossed together because of nervousness, and the veins on the back of his hands were bulging.

"Escape Tower Separation..." After flying for more than a hundred seconds, the Escape Tower began to separate.

Every move on the Rocket is one step closer to success.

However, the closer we are to success, the more nervous everyone is.

"First level separation..."

"The first level of Dongfeng is separated, the second level of ignition..."

"Shake the fairing!"

"Weinan radar discovered the target!"

The target was discovered by a testing station built in Weinan. At this time, the satellite's flight altitude was close to hundreds of kilometers.

"Dongfeng Optical Radar is normal, telemetry signal is normal, and flight is normal!"

With the situation reported at each monitoring station, the entire control center can be heard and the breathing sound is extremely obvious.

"The Taiyuan Monitoring Station found the target. The infrared radar is normal, the telemetry signal is normal, and the flight is normal!"

"The second stage engine is turned off..."

"Three-stage engine ignition..."

"The third stage engine is turned off, and the scooter section begins!"

"Second ignition of the third-stage engine!"

"The third-stage engine is closed twice, and the end correction begins!"

"The end correction is over, adjust the flight posture!"

"Spin the engine ignition!"

"Spin the engine shuts down!"

"Enter the scheduled tracks and execute the separation procedure!"

"Satellite unfolds!"

On each predetermined orbit, the last stage of the rocket body separates from the satellite, and then the satellite's solar panels begin to unfold.

"Signal found!"

"Wow!" In the control room, warm applause suddenly sounded.

"Old Qian, we succeeded!" Liu Yijiu was so excited that he gave Mr Qian a hug, and found that Mr Qian's body was still trembling slightly.

He found that at this time, Mr. Qian was relieved.

At this time, Chen Fangyun became nervous.

Lao Qian's rockets sent their satellites to the predetermined orbit, and whether the satellite's functions can be fully realized as designed depends on the situation later.

"Received the first telemetry satellite image..."

When the control center received the first picture sent back from the satellite, the applause from the entire control center became even more intense.

The usually rigorous aerospace science and technology workers hugged their colleagues around them with tears and laughed.

After testing, the communication function is normal and the telemetry function is normal...

"Old Chen, Mr. Qian, congratulations!" Liu Yijiu gave the two old men a hug. "Our project can continue to be developed. However, when will the second satellite be launched?"

When the launch is successful, everyone will be relaxed.
To be continued...