A big country of aerospace with black technology

"Report to the command center that I have completed all the thruster cable connections."

"Application to proceed to next step, Hall thruster functional testing procedure."

Xu Ying said calmly through the communicator.

The double-ring nested Hall thruster used on the star port.

Radon gas is used as propellant.

Radon gas is an inert radioactive gas derived from the decay of radium and is highly radioactive.

Therefore, throughout the entire test process, Xu Ying had to be extremely energetic and maintain a high level of concentration.

"The command center has received the functional test application and is preparing to start the propulsion system control host."

The latest news from the ground came through the intercom.

What Xu Ying can do at this time is to watch the test program run.

When there is a problem with its operation, interrupt it in time.

Then let the control panel perform a self-test.

If you have any questions, just send them to the ground and they will follow the instructions.

"The start-up of the control host is completed and the Hall thrusters are being started one by one."

The control host, which is the size of a small cargo box, flashes a blue light that indicates normal operation.

Surging electricity and radon gas emitting radioactive fluorescence were transported into the No. 1 Hall Thruster.

Light blue light began to slowly light up between the two rings of the Hall thruster.

The light of ions slowly rose.

However, from a distance of several hundred meters, Xu Ying could not see clearly with the naked eye.

The height of the ion light is not even ten centimeters.

The Hall thruster has much smaller thrust than the Tiangong spacecraft's thruster.

But it can still slowly promote the trajectory of the star port in space.

"The No. 1 Hall thruster has reached the maximum power of 50KW, and the current relative acceleration of the star port has reached the maximum value."

"The test results were good and allowed to pass the performance test."

The test results came out from Xu Ying's mouth.

No one was better suited to review the Hall thruster test results.

Others can only see basic data.

Xu Ying can not only see the data, but also the actual operating status with the naked eye.

The testing work of the Hall thruster is compared to the installation work.

It's even more troublesome.

Because in addition to testing the operating effect of a single Hall thruster.

It is also necessary to test the coordination effect between multiple Hall thrusters.

After each test is completed, the Tiangong-1 spacecraft will be used to reset the orbit of the star port.

The entire test lasted for four days in total.

Only then did he get a thorough understanding of the entire propulsion system.

In this process, Xu Ying's judgment also played a big role.

For example, when multiple Hall thrusters are working in a star port.

Because of the angle problem, a spin problem occurs.

If Xu Ying hadn't started the Tiangong spacecraft's thruster in time, it would have stopped spinning.

And promptly cut off the operation of the Hall thruster.

The star port is likely to spin at high speed and quickly fall towards the earth's orbit.

"Comrade Xu Ying, all your tasks have been completed!"

"You can return to the Tiangong Space Station for a short rest and wait for the next manned spacecraft to return to Earth."

The slightly excited voice of the ground personnel came from the communicator.

Xu Ying was quite calm, "Xu Ying understands that the separation process is about to begin."

In the past few days, Tiangong-1 and Tiangong-2 have been existing as a combination.

Start the separation process.

Inside the Tiangong-1 cabin, a molecular permeable membrane began to be used to transmit oxygen to the interior of Tiangong-2.

The inert gas is then released to protect the equipment inside the chamber.

It will remain attached to the starport.

It's like an ant lying on the star port.

Xu Ying looked at the star port that was getting farther and farther away from her and could gradually be seen normally.

There were still waves of waves in my heart.

In the first half of his life, he participated in many special engineering projects.

But there has never been a project that made him feel so excited like Star Port.

"Farewell, I don't know when the next time we will meet is."

Xu Ying murmured as she looked at the star port getting smaller and smaller outside the porthole.

But then I looked at the earth that was getting bigger and bigger with even more joy.

I feel as excited as when I go home during the New Year.

A distance of more than 30,000 kilometers, even in high-speed flight in space.

Xu Ying still flew for nearly twenty hours.

"The automatic docking program has been started and the automatic docking work will be started soon."

A mechanical female voice sounded in the cabin.

Xu Ying looked at the Tiangong Space Station, which was very close at hand.

It feels like Robinson Crusoe, who has been wandering on an isolated island for several years, has returned to human society.

Staying alone in geosynchronous orbit for nearly ten days is not something a normal person can endure.

In space, there is no sound transmission medium.

Xu Ying could only hear the sounds inside the cabin.

He could hear the slight creak of the spacecraft's metal stress being released.

If it weren't for the various voices from the ground command center that could often be heard in my ears.

And use heavy work to numb your will.

Seo Young might just go crazy.

"Welcome back to Tiangong Space Station!"

"Comrade Xu Ying!"

As soon as Xu Ying floated into the Tiangong Space Station, he was greeted by the members of the space station who warmly welcomed him.

If it weren't for the space station, there would be no conditions for firing.

They might just put out a few salute tubes.

Wu Yuan, the commander of the fifth batch of crew members, gave Xu Ying a warm hug.

"Welcome back!"

"You must be exhausted from being in synchronized orbit alone. We have prepared good things."

Nie Haisheng on the side was holding a glass bowl.

There were waves of heat rising inside.

"Get the dumplings on the bus and get the noodles off. We have limited conditions here, so we made you a simple scallion oil noodles."

Eating pasta on the space station is not an easy task.

Noodle soup has been largely left off the menu.

If soup and water are spilled in the cabin, it will be difficult to clean.

There are only a few types of pasta that can be eaten in the space station.

"thank you all."

Xu Ying looked into the cabin with a smile on her face, looking forward to her people.

I felt a warmth flow through my heart.

He took a large bowl of noodles from Nie Haisheng.

The others were looking at themselves, as if they were saying something with their eyes.

"Eat quickly."

Xu Ying stirred up a small ball of noodles.

The light brown noodles exude the rich aroma of scallion oil.

The noodles are chewy, smooth and delicious.

Xu Ying had been eating various rations at the star port station for nearly ten days.

It was a great meal and I was very happy.

In less than three minutes, Xu Ying swallowed a large bowl of noodles.

"Sorry, I'm really hungry."

After eating, Xu Ying looked at everyone present and said with some embarrassment.

"Have you eaten?"

"It's past our meal time, we've already eaten."

After Xu Ying finished eating, Wu Yuan began to introduce his next trip to him.

"You will go back on the same return ship as us."

"You can make full arrangements for yourself during the few days waiting for the spaceship."

"Whether it's for rest or whatever you want to do."

The crew members of the space station also know that Xu Ying has been there in the past few days.

Every day is intense work.

So they all nodded in agreement.

"Take a good rest when you return to the space station. Your mission has been completed."

Nie Haisheng also patted his shoulder and said.

The next few days.

In addition to daily rest, Xu Ying exercises.

Although his time in space was short, it only took half a month in total.

Muscles and bones will not be so weak that you need to sit on a stretcher.

But a certain level of fitness can still be achieved after returning to the ground.

Restore physical health faster.

Xu Ying used an elastic band to perform strength training on her arms and legs.

"We're lucky. The weather has been very good for the recent return. We hardly have to wait too long to get back to the ground."

Wu Yuan brought good news to Xu Ying.

Slowly stopping the stretching of her arms, Xu Ying exhaled.

"when?"

"Tomorrow evening."

Wu Yuan smiled and said:

"It's a pity that we are going to different places when we return to the ground, otherwise we can still have fun together."

Wu Yuan and the others stayed in the space station for more than half a year.

After returning to the ground, it was difficult to even stand up.

Either use mechanical assistance to walk, or walk with the help of others.

It will take them several months to restore their physical fitness to peak condition.

Xu Ying didn't stay in space for very long.

After returning to the ground, I can quickly return to scientific research and teaching work.

As the world's first practical space engineer.

These experiences of Xu Ying will be passed on to other engineers on the ground.

"I can visit you then."

Xu Ying smiled and said.

Wu Yuan and the others need to stay at the Institute of Aerospace Medicine for a while.

Xu Ying only needs a simple inspection and can go directly back to the astronaut training base.

The next night, a return spacecraft pierced the night.

Landed on the Agumulang grassland.

"How about it? Can you still hold on?"

Returning to the cabin, Wu Yuan looked at Xu Ying and said.

"It's okay, I can still walk."

After returning to the ground.

Among the current people, Xu Ying actually has the best physical fitness.

The heavy return cabin door was opened.

Outside the door, there was a crowd of people warmly welcoming them back to Earth.

The military responsible for maintaining order, and the medical team responsible for the astronauts' bodies.

People who gave them flowers, and media who wanted to take photos of their return.

The large flow of people brought a rare excitement to the vast and cool grassland.

"How about it, do you want me to help you out?"

Xu Ying said with a smile.

"That's not necessary. I still have the strength to go out."

Wu Yuan said without any lag.

Then he was the first to step out of the cabin.

Then he was put on a stretcher by the medical team.

After Xu Ying walked out of the hatch, he felt in good condition and refused the stretcher offered by the medical team.

"Old Xu, welcome you back to Earth."

It was Xue Feng who presented flowers to Xu Ying.

His old friend.

"Haha, Lao Xue, you lost to me this time."

Xu Ying said with a smile.

As the first space engineer.

As long as humans continue to develop and develop in the future.

Then your name will be firmly recorded in the history books.

"You are famous this time."

Xue Feng gave a thumbs up and said.

"In our old workplace, people call you every day and want to have a relationship with you."

Now is not the time to speak.

The two of them chatted for a little while.

The main time is left to Xu Ying and the others.

This group of astronauts who returned to the ground are the protagonists today.

News of the fifth batch of astronauts and Xu Ying returning to Earth.

While they were still traveling through the atmosphere, it had already spread throughout the Internet.

Related entries are at the top of major search rankings.

“This year’s netizens can really take pictures of any kind.”

Geng Bo scrolled through Weibo and said with emotion.

"Someone actually squatted to see the image of the return capsule passing through the atmosphere."

For Geng Bo, such images are nothing special.

Because monitoring stations in various places have a very large number of optical radars.

It can always track and capture images of the return capsule.

Even when a black barrier appears in the return capsule.

Thermal-sensitive satellites can also capture the flight trajectory of the return capsule.

But ordinary people don't have such conditions.

I was able to squat down to the trajectory of the return capsule and take clear photos.

It really takes a lot of luck.

"The photo was quite clear, it doesn't look like an ordinary person."

Zhang Xingyang glanced at Geng Bo's mobile phone after hearing this.

The resolution of the photo is very high, but the distance is relatively far and the details of the return capsule cannot be captured.

"Maybe he's an aerospace enthusiast."

Geng Bo guessed.

The development of the domestic aerospace industry has also led to the emergence of many aerospace enthusiasts.

They are keen on filming various scenes of rocket launches and returners returning to the ground.

"It doesn't look like it. This place is not right."

Zhang Xingyang carefully looked at the photo Geng Bo saw.

Found something unusual.

That's where the photo was taken.

In fact, for the safety of the people around the return capsule.

A large piece of land, when the return capsule returns to the ground.

will be designated as restricted areas.

To prevent the return capsule from causing unnecessary casualties during the landing process.

"This photo was taken very close to the landing site."

"Look at that puddle, it's less than forty kilometers away from the landing site."

Zhang Xingyang pointed to an inconspicuous black spot in the corner of the photo and said.

Geng Bo's memory was not good enough to write down all the terrain on the return field.

But what Zhang Xingyang said should not be a problem.

So I entered the database and searched for the satellite map of the return field.

It was discovered that there was indeed a puddle more than 30 kilometers away from the landing point of the return capsule.

I carefully compared the terrain back and forth.

Geng Bo could confirm that this person had indeed broken into the restricted area.

"Call the National Security Bureau and ask them to find out who took this photo."

"By the way, let the person in charge of peripheral security search this place to see if they can still catch the other party."

After determining that there is something wrong with the person who took this photo.

Zhang Xingyang said to the staff around him.

No matter that this was an aerospace enthusiast who accidentally broke into a restricted area.

Or a spy who wants to take some confidential photos.

This matter will not end so simply.

The person in charge of returning to the field security work was scolded immediately after receiving a call from his superiors.