Yu Guangli had said before that mechas would go to sea.
But before officially going into the sea, the mecha's airtightness, pressure resistance, and other data must be tested in water. Only after ensuring the safety of the internal pilots can the next step be taken.
It is said that we need to test it, but it is impossible to jump into the sea right away.
So it started out in a special deep-water swimming pool.
Lin Fan was taught to swim by Song Ren. Although it was an ugly dog paddle, he could still float. His technique was just average.
Compared to her, Xingchen is much more comfortable in the water.
After knowing that Xingchen could breathe freely in the water, Lin Fan felt relaxed. As a result, Xingchen, who had been sinking to the bottom of the water before, now floated up and down in the water like a live fish, feeling very comfortable.
Compared to Xingchen, the other mechas are much more difficult.
The first is the issue of the mecha's own weight.
Because the mecha itself weighs 300 kilograms and its internal structure is mostly made of high-density metal, it sank to the bottom as soon as it entered the water.
Fortunately, there was no problem with the internal closed structure of the mecha, and there was no water leakage.
In water, it is basically impossible to move freely relying on the mecha's own buoyancy.
However, a new propulsion system has been installed. Once turned on, the direction can be controlled by twisting the body angle.
After several days of practice, the four of them quickly mastered the skills of controlling direction and were able to move freely in the water.
The airtight water pressure test has also been completed. Thanks to the support of 818, the theoretical water pressure resistance of the bionic armor can reach 70 atmospheres.
But this is only theoretical data, and the actual diving situation must be considered. In addition to water pressure, airtightness and oxygen content are also important data.
Everything is ready.
Choosing a sunny day, the people from 623 borrowed a transport plane from the neighboring flight base and took Fu Guang and four other mechas along with Lin Fan and others to a naval base.
Then they borrowed the route of a warship and reached the deep sea area of the inland sea.
Such a test would inevitably involve the ship's soldiers. Cui Yan had already addressed these issues when coordinating the itinerary.
The four mechas were on a tightly covered ship, so outsiders could not see what was going on inside.
When they arrived at the designated location, all the crew members on deck evacuated, leaving only the captain and four first mates in the command tower, watching the deck below.
They are insiders and must keep an eye on the whole process to prevent any accidents.
The moment the canvas was lifted, the knowledgeable captain and his companions couldn't help but study it.
"When they said it was a mecha, I thought it was Iron Man-esque. I didn't expect the real thing...to be so much better looking." The first mate used a telescope to carefully examine the details.
"Has our technological development reached this point?" The captain was also surprised.
"Who knows? Anyway, it's hard for me to imagine without seeing this." Another first mate was also watching.
Fu Guang and the others were transported here lying on a flatbed truck, lying down.
After removing the canvas, Song Ren directly turned on the Xinglan system, entered from the back, and climbed up by himself.
"Hey, look. It's much more flexible than I thought." First Mate C also looked through the telescope.
"Yeah, it seems to be no different from a real person. It's amazing." First Mate Ding nodded in agreement.
The staff of 623 were busy setting up equipment on the deck and tying safety ropes to the four mechas.
The other end of the safety rope is connected to an electric winch. If anything happens below, the winch can be turned on to pull the person in the sea up as quickly as possible.
"Oh, didn't they say there were five mechas to test? Why are there only four?" First Mate B looked more and more concerned. "Is it five? Or did I remember it wrong?"
"Yes, I remember five too. Look, there are five capstans," the first mate replied. "There's one that hasn't come out yet."
Only after everyone in 623 was ready did Lin Fan come out of the cabin and let the staff tie a safety rope around her.
"Look, isn't it coming out?" First Mate C noticed the star and reminded the others, "It seems to be a little smaller."
"It is a little smaller, and the ropes and winches she uses are much larger than those on the other four mechas." First Mate Ding observed equally carefully.
As they were talking, five mechas entered the water together, splashing water and quickly disappeared from the sea.
The experience in the ocean is different from that in a swimming pool. Not only is the light intensity different, but the buoyancy is also different.
Because of its high salinity, the buoyancy of seawater is greater than that of fresh water in a swimming pool, so it sinks faster in a swimming pool.
This did not cause any hindrance to Xingchen, but it obviously affected Fuguang and the others.
After Lin Fan discovered this, he quickly sank at the same speed as the others.
The further down you go, the dimmer the light becomes.
The sea water turned from clear to murky. The sky seemed far away. Lin Fan felt that as the surrounding environment changed, the atmosphere became somewhat quieter.
"Are you okay? How does the water pressure feel?" Yu Guangli asked through the headset.
"Xingchen feels good." Lin Fan felt it and didn't feel anything special.
"The floating light feels good. There is no obvious sense of oppression." Song Ren's voice also sounded from the headset.
At this time they are on the same channel and can hear each other's voices.
"Jin Gang feels good. There is no obvious sense of oppression." Li Chunhua's voice also came, sounding very excited.
"Yufeng feels good, with a slight feeling of pressure, but no obvious discomfort." Gao Fei's voice sounded immediately afterwards.
"The ice wheel feels good, there is no obvious sense of pressure." Ji Yu's voice also sounded.
Because Gao Fei felt oppressed, Yu Guangli paid close attention to his condition. After confirming that there was no problem, the group continued to dive.
"How deep is it now?" Lin Fan asked directly as there was no screen in front of her.
"It's more than 160 meters." Song Ren replied.
The light in front of me was getting dimmer and dimmer, and the number of fish swimming around was decreasing.
Every once in a while, Yu Guangli would ask everyone how they felt. Their responses were generally the same: they felt fine, with no noticeable sense of oppression.
Only Gao Fei Yu Feng, not knowing what went wrong, felt a stronger sense of oppression than anyone else.
When they were over 300 meters away, everyone except Lin Fan felt a certain sense of oppression, but no one felt any obvious discomfort.
At this time, if there is no protection from the mecha, this pressure can severely compress the human internal organs and even crush them.
"Xingchen doesn't feel anything at all?" Li Chunhua was curious.
"I don't feel anything." Lin Fan felt it carefully and replied.
"No feeling?" Yu Guangli's voice came, "No sense of oppression at all?"
Xingchen's condition is different from the other four and also requires special attention.
"No..." Lin Fan felt it carefully again before saying, "I feel very comfortable. It's like I'm a sea fish."
“…”
Although this description is an understatement, it vividly gives people an understanding of Xingchen's current feelings.
Although biological mecha is a living mecha with tactile sense, its performance is obviously much better than bionic armor.
"Continue to dive." Yu Guangli continued to give orders.
Only a dozen minutes had passed, so they still had room for testing.