The outside world was shocked by the huge achievements of the Heavenly Dragon.
The netizens were even more enthusiastic. Recently, the picture of the Heavenly Dragon had become the avatar of countless people.
On the other side of the ocean, Slate Aerospace could only silently accept the fact that its stock price had plummeted in the face of the overwhelming technological advantage of the Heavenly Dragon.
For such a huge aerospace achievement, all countries threw olive branches to the Dragon Country, hoping to have more cooperation in the aerospace field.
The situation was great, but Su Yu had no time to enjoy it.
..........
On the night that Old Huang gave the mission, Su Yu had already boarded a private plane to the eastern part of the Dragon Country.
What surprised Su Yu was that there was another person who was traveling with him.
The transport plane soared in the sky, but there were only Su Yu and Liu Muyan in the cabin.
Because the project this time was highly confidential, there was no one else on the transport plane that Su Yu and the others took.
It seemed that the mission of this transport plane was to send the two of them to their destination.
"Looks like it's just the two of us.”
The cabin was very quiet. Su Yu took the initiative to break the silence.
Based on Liu Muyan's personality, if Su Yu didn't speak, the two of them might not talk for hours.
"Yes, but I'm only in charge of the submarine's electronic system. You have a lot of responsibility.”
Su Yu took the initiative to speak, so Liu Muyan could chat with him.
Su Yu didn't know if it was his imagination, but he felt that Liu Muyan seemed to be smiling.
Su Yu had known Liu Muyan for quite some time, and he even brought her home for the New Year.
However, in Su Yu's impression, he rarely saw Liu Muyan smile.
However, Liu Muyan rarely smiled, and Su Yu was amazed every time.
.........
The two of them chatted casually to pass the boring flight time.
A few hours later, the transport plane landed at an unknown airport.
When Su Yu and Su Yu got off the plane, they saw an old acquaintance.
The person who came to welcome Su Yu and Su Yu was Li Changkong.
"Haha, Chief Engineer Su, you're finally here. This time, I have to be your assistant.”
Li Changkong walked up to Su Yu and greeted him with a smile. There was a hint of teasing in his tone.
However, Su Yu was no longer the young boy he used to be. Since Li Changkong called him chief engineer, he could only accept it with a clear conscience.
"So it's Deputy Chief Engineer Li. It seems that we can cooperate again.”
Su Yu pretended to speak in an old-fashioned tone as he opened his mouth to reply.
Li Changkong was stunned.
"Hey! You brat! No matter what, I'm your former superior. You're not giving me any face at all.”
Su Yu laughed loudly when he saw this.
"Hahaha, I'm just joking. Brother Li, your tricks don't work on me anymore.”
"Not bad, kid. It's only been a while since we last saw each other. You're working on chips and rockets. Your life is much more exciting than mine, who only knows how to work on things in the water.”
........
While they were exchanging pleasantries, Li Changkong brought Su Yu and Su Yu into the jeep.
After leaving the airport, the car drove straight to the seaside.
Two hours later, the jeep entered a tunnel.
After that, the jeep never came out again.
Su Yu, who was sitting in the jeep, had his horizons broadened this time.
This tunnel was obviously not a passage that normal vehicles could pass through.
Half an hour after their car entered the tunnel, they encountered the first checkpoint.
The outpost was guarded by ten fully armed soldiers.
However, they weren't fully armed.
These ten warriors were all wearing Black Tortoise armor, looking majestic.
There were also 10 Black Tortoise combat robots standing on both sides of the tunnel.
If Su Yu wasn't the designer of the Black Tortoise Armor, he might have included the Black Tortoise combat robots standing on both sides of the tunnel.
This was also the first time Su Yu saw the Black Tortoise Armor appear in the frontline troops.
From this, it could be seen that this tunnel was not simple.
After the car stopped in front of the checkpoint, Su Yu and the others were subjected to an unusually strict search.
During this process, the soldiers at the outpost used all kinds of detection methods, even searching the jeep from top to bottom.
After confirming that the car was not installed with a monitoring device, Su Yu and the others were allowed to pass.
This was not the end. Su Yu and the others saw a total of four outposts of the same size on the way.
In other words, there were a total of 50 warriors in Xuanwu armor and 50 Xuanwu combat robots guarding the first half of the tunnel.
This level of martial law reminded Su Yu of Black Mountain Base.
When he first entered Black Mountain Base, he had also gone through many obstacles.
However, the soldiers who were responsible for guarding the card did not conduct such a strict search.
After a total of five rounds of search, the jeep that Su Yu and the others were in finally drove smoothly into the depths of the tunnel.
However, the length of this tunnel completely exceeded Su Yu's expectations.
They had been driving for more than two hours after entering the tunnel. They had definitely traveled more than a hundred kilometers, but they still had not seen the end of the tunnel.
Furthermore, the slope of the tunnel began to change as it went further down.
Not long after, their path seemed to have become a winding road down the mountain.
Facing such a change, Su Yu was extremely shocked in his heart.
"We've been walking for another half an hour. We're probably already a hundred meters underground.”
Su Yu sighed.
Li Changkong, who was sitting in the front seat of the jeep, also turned around to look at Su Yu and Su Yu.
However, he only smiled and did not explain anything to Su Yu.
Obviously, Li Changkong was deliberately keeping them in suspense.
In order not to be controlled by him, Su Yu simply did not ask any more questions.
Fortunately, they arrived at their destination half an hour later.
At the end of the tunnel, Su Yu saw a steel gate that was very similar to Black Mountain Base.
The jeep stopped in front of the steel gate and Li Changkong got out of the car.
He took out a card from his pocket and gently swiped it somewhere on the steel door.
"Rumble!"
The black steel door slowly opened.
Su Yu was very familiar with this scene. When he first arrived at Black Mountain Base, he also saw Yang Cunxiao open the door like this.
Li Changkong did not keep them in suspense anymore. He turned around and said to Su Yu and Su Yu.
" Welcome to the Black Sea Base."
........
Behind the steel door was a space the size of Black Mountain Base.
However, this wasn't a naturally formed hole in the mountain.
Instead, it was a space supported by a huge steel dome.
It was also at this moment that Su Yu finally understood what the tunnel they had walked through meant.
It was the undersea tunnel!
This mysterious Black Sea base was a secret base built on the seabed.
Even the usually cold Liu Muyan couldn't remain calm in the face of such a spectacle.
"Underwater base! How was this built?"
Liu Muyan's question was also Su Yu's question.
As an excellent mechanical engineer, he could imagine how difficult it was to prop up such a large space at the bottom of the sea.
"This can be said to be the highest achievement of our Dragon Country's construction project. It was only built a year ago and took a total of ten years.”
Li Changkong explained as he led the two of them deeper into the forest.
Su Yu was also filled with curiosity towards this place at this time, constantly looking around.
"Actually, this underwater base is not as exaggerated as you think. It's called an underwater base, but we're only about 30 meters from the sea level now.”
"The main part of the base is built on a huge reef. The overall material is synthetic steel that is forged in one go.”
"If it's too deep, the water pressure will be too strong. It's impossible to build such a large base.”
"Speaking of which, Su Yu, if you could produce those black technology materials earlier, the cost of this Black Sea base might be much lower.”
Although Li Changkong said so, Su Yu and Liu Muyan still found it unbelievable.
A project of this scale was simply unheard of before.
Other than the Dragon Country, no other country could quietly build such a base dozens of meters deep underwater.
As they spoke, the few of them had already arrived at the hinterland of the Black Sea Base.
In the middle of the Black Sea Base, there was a very complicated square dragon gate.
From Su Yu's current position, he could only see a small part of the Dragon Gate. He did not know how big it was.
Almost half of the Black Sea Base seemed to have been occupied by this huge dragon gate.
Even Su Yu had never seen such equipment before.
However, before Su Yu could ask anything, Li Changkong, the dutiful tour guide, had already begun to introduce the two of them.
"This is probably the design I'm most proud of in my life. It's the only large-scale submarine construction equipment in the world.”
"What do you think? My work is not bad, right?”
Li Changkong said to the two of them with a slightly boastful tone.
At this moment, Su Yu had a better understanding of how terrifying the people who could enter Black Mountain Base were.
Other than the crane tower, there were also many giant mechanical arms on this huge portal frame. At first, Su Yu really didn't understand its function.
However, as soon as Li Changkong mentioned it, Su Yu immediately had an image of how this giant dragon gate frame would look like when it was truly working.
The difference between the construction of submarines and some surface ships such as aircraft carriers was not small.
After all, the submarine was an underwater equipment. Simply put, it was a huge hollow iron can.
Currently, there were many mainstream submarine construction methods, such as circular section welding, or the upper and lower ends were assembled separately, or the front, middle, and rear sections were manufactured separately.
However, all of these construction methods required a long time.
From what Su Yu could see, the huge portal frame in front of him was almost completely built for the submarine.
With this large mother machine, every part of the submarine could be built at the same time, and the huge mechanical arms could be welding at various angles.
The theory behind it wasn't complicated, but such a large mother ship and such an exaggerated underwater base still made Su Yu and Liu Muyan unable to come back to their senses for a long time.
This book comes from：m.funovel.com。