Reborn Action Star: Starting in Hollywood

Chapter 625 Deep Sea Extravehicular Training
Lieutenant Colonel Louis's surprise was understandable.

Lin Yuan’s source of information is truly amazing; he can always come up with some unimaginable intelligence.

Last time, Lin Yuan brought the potential risk of El Niño to the N-13 route.

Not to mention saving the Ohio-class strategic missile nuclear submarine, but it definitely saved the Virginia.

Suppose you encounter a "liquid seabed" and are forced to surface urgently due to abnormal buoyancy.

The Virginia may have hit a thick ice sheet, causing the submarine's hull to rupture and leak, eventually sinking.

But a behemoth like the Ohio class doesn't have to worry about the threat of the ice sheet.

On the one hand, the Ohio-class shell is mostly made of titanium alloy, which has extremely high hardness.

On the other hand, the extra-large volume makes the segmented and enclosed cabin sufficient to resist water ingress caused by a small amount of damage to the hull.

Because the Ohio-class strategic nuclear submarine has an underwater displacement of nearly 2 tons, which is equivalent to two and a half Virginias.

With a displacement of 2 tons, it is an absolute giant among surface ships.

The displacement of some light aircraft carriers during World War II was only at the 2-ton level.

If the submarine environment is cramped, then strategic missile nuclear submarines are definitely not included.

The Ohio-class strategic missile nuclear submarine actually has a swimming pool and a gym inside, which is so luxurious that other submarines can't even imagine it.

Lin Yuan was a little curious. When he entered the Ohio-class ship, would he have the opportunity to take a close look at this most powerful weapon in human history?

But at this moment, Lieutenant Colonel Louis was more curious about what information Lin Yuan brought this time.

"Are there any risks with the N-17 route?" asked Lieutenant Colonel Louis.

Lin Yuan recounted the story of his meeting with Old Tommy.

After listening, Lieutenant Colonel Louis sighed: "This old senior is really a talent, everything he said is right.

There are really only two routes to choose from: N-15 and N-17, and according to him, the N-15 route also has the same risks.

"Do you know what the risk is?" Lin Yuan asked.

Lieutenant Colonel Louis shook his head: "I'm not sure, but I guess it might be a cliff in the sea."

"A cliff in the sea?" Lin Yuan asked.

"Well, sea cliffs are one of the most deadly accidents for submarines. Almost half of submarines sink accidentally due to sea cliffs." Lieutenant Commander Louis continued to explain:
"You already know what a 'liquid seabed' is. It's when a submarine suddenly enters a high-density water body from a low-density water body while sailing, forcing the submarine to quickly surface."

"The 'sea cliff' is exactly the opposite of the 'liquid seabed'. It is when a submarine suddenly moves from a high-density water body to a low-density water body while sailing.

At this moment, the submarine's buoyancy dropped suddenly, and the submarine fell rapidly to the bottom of the sea, just like falling off a cliff with one foot in the air."

"The rapid increase in depth caused the submarine to experience a sudden increase in pressure. Under the pressure of the seawater, the pressure exceeded the submarine's limit, causing the entire submarine to twist and break."

"The process was so swift that the submarine crew members didn't even have time to react and save themselves before they were already buried on the seabed."

After hearing Lieutenant Colonel Louis' explanation, Lin Yuan also felt a chill.

Imagine that you are sailing in a submarine two or three hundred meters underwater.

There was nothing unusual the moment before, everything was fine.

The next moment you suddenly feel like you are falling from a tall building, falling deep into the sea.

Accompanied by the creaking sounds of the submarine hull coming from all around, you feel as if the submarine you are riding in is being twisted forcefully by the big hands of an invisible giant.

In less than a minute, the submarine plunged from two or three hundred meters underwater to the deep sea below one thousand meters.

"Oh!"

There was a sound of the hull breaking, and the huge water pressure directly crushed the outer shell of the submarine.

The seawater rushed into the submarine frantically with huge water pressure.

Even the metal hull of a submarine cannot withstand the water pressure directly acting on people.

At that moment, there was no chance of survival.

Everyone's bodies were crushed by the water pressure in a short period of time, and they didn't even have time to be drowned by the sea water.

This desperate way of death is really chilling.

So Lin Yuan asked, "Will we really encounter a 'Cliff in the Sea'?"

Lieutenant Colonel Louis shook his head. "I don't know. The reason for the sea cliff is the inversion of water density. That is, the density of the seawater in a certain area is higher at the top and lower at the bottom.

And the gap is huge. I don’t know how this situation came about.

In fact, the sea cliffs are really hard to predict, which is why there are so many accidents.”

This is even more worrying. Lin Yuan asked, "Will you follow Old Tommy's advice and sail off course?"

Lin Yuan gave the decision-making power to Lieutenant Colonel Louis.

Because he was the captain of the Virginia, he was also the first person responsible for any accidents or incidents.

He was not responsible even if he encountered a "cliff in the sea" by following the route. It was just an accident.

The pension provided by the state will not be reduced by a single cent. Although he cannot get it, at least his family will have some security.

But if you deviate from the route on your own initiative and then encounter a "cliff in the sea", that would be a dereliction of duty by not complying with navigation rules.

Lieutenant Colonel Lewis hesitated for a moment and said, "If I'm not mistaken, the legendary figure that Old Tommy mentioned should be Mr. Billy, who is known as the 'Living Map of the Arctic Ocean.'

Almost all strategic missile nuclear submarines cruising underwater in the Arctic Ocean have experienced him and are familiar with the underwater routes.

Even though he has passed away for several years, his deeds are still well known in the submarine force.”

"I believe Mr. Billy. There is no better underwater navigator than him. I believe he must have a reason for doing this, so I will deviate 60 meters from due west throughout the journey," said Lieutenant Colonel Louis.

"Since you have made the decision, I will follow your decision. Should we set off?" Lin Yuan asked.

"Well, yes. Let's go now," said Lieutenant Colonel Louis.

Led by Lieutenant Commander Louis, everyone climbed into the interior of the Virginia.

The submarine's hatch was then closed, and it left the Bangor submarine base and headed towards Greenland.

……

……

The distance from Bangor Submarine Base to Greenland is about 1600 kilometers.

After sailing for two and a half days, the Virginia finally arrived at the outer edge of the Greenland ice sheet.

In the submarine restaurant, Depp stretched his waist and said: "We are finally about to reach our destination. When I think about finishing the filming and no longer having to sleep in a cramped shared bunk, I can't help but want to sing a song."

"Stop, stop, stop! No singing! I shudder when I think of your singing echoing in the narrow space of the Virginia." Meng Tao immediately told him to shut up.

"If you dare to sing, I won't let you on the filming boat after the shooting and will leave you alone on the Virginia," Director Cohen also threatened.

It's clear that Depp's singing is truly infuriating.

During the two-day voyage, singing seemed to become a way for Depp to relieve his inner depression.

Indeed, according to many scientific studies, when people feel depressed, singing loudly can make them feel better.

The only consequence of Depp's actions is that the already depressed emotions of others have been made even worse.

"Director, why are you like this?" Depp said aggrievedly.

"Because I really can't bear it anymore." Director Cohen was also helpless.

"I'm just in a really bad mood. When I think about the scenery above our heads at this moment, it should be a magnificent scene of ice and snow, but I can't see anything. It's such a pity." Depp said.

"We asked you to go to the sea with us, but you didn't go by yourself," said Meng Tao.

"Don't say anymore. I can't overcome my fear of the icy sea," Depp said.

"Do you think you are Lin Yuan? He is the one who really comes into contact with the icy sea. You go into the water wearing a warm dry diving suit. What are you afraid of?" Meng Tao said.

"We are so deep underwater now. What if the pressure-resistant layer is broken by the water pressure? I won't go there anyway," said Depp.

"Useless man..." Meng Tao was interrupted by the sound of the door opening when he was halfway through his words.

"Bang!"

With the sound of the restaurant's iron door being pushed open, Lin Yuan walked in wearing a wet diving suit.

"I'm ready, shall we go?"

"Okay, let's go." Meng Tao, who was wearing a rather bulky dry deep-sea diving suit, got up from his chair.

Director Cohen and Depp followed behind the two men and walked towards the escape pod.

Today is their sixth diving adaptation training.

During these few days, Lin Yuan continued to try out extravehicular training at various depths and water temperatures.

The purpose is to get closer to the real environment during shooting step by step.

Today, we have reached the final step, which is almost completely simulating the shooting environment.

Lin Yuan will go out of the cabin at a position 200 meters underwater to receive adaptation training to water pressure and water temperature.

As long as we complete today's adaptive training, we can start officially filming this long-prepared underwater scene tomorrow.

But today's adaptive training was really not easy and quite dangerous.

Below this depth, the water pressure will be an extremely terrifying 20 atmospheres (the water pressure increases by 10 atmosphere for every 1 meters of descent).

The underwater temperature in the Greenland area will also reach minus six degrees Celsius.

Don’t ask why it’s minus 6 degrees Celsius and why it hasn’t frozen yet.

Because that is the freezing point of pure fresh water, the salinity of seawater in the Greenland area reaches 35%, and it also contains other impurities, which greatly lowers the freezing point of seawater.

This also means that Lin Yuan has to face even more severe challenges.

Thinking of what Lin Yuan had to go through, Meng Tao couldn't help but clench his fists.

Today, Lin Yuan will attempt free diving in extremely cold conditions and under extremely high water pressure. Free diving is the practice of diving as deep as possible without a tank, using only self-regulated abdominal breathing and breath-holding.

This is an extremely dangerous sport, with a mortality rate even comparable to that of ultra-low altitude skydiving.

When a deep diver dives, the sea water will exert great pressure on his chest cavity, making the whole body feel as if it is pressed by heavy stones, and all movements will become extremely stiff.

When a person is in deep water and his movements become stiff, his ability to cope with any accidents will be greatly reduced, or he may even have no resistance at all.

What’s even more terrifying is that deep divers are already exhausted underwater, and when they surface they have to overcome the extremely terrible “shallow water fainting”.

"Shallow water fainting" occurs because when a diver is in deep water, the capillaries in the human body tighten, blocking the flow of blood from the heart to the extremities of the body, leaving more oxygen and blood in the heart and brain.

When he resurfaces and the water pressure begins to decrease, the capillaries begin to dilate again and blood begins to flow from the brain to the limbs. In this process, the lack of oxygen to the brain can easily cause fainting.

Although Lin Yuan did not have any floating scenes during the filming.

However, when he entered the submarine from the Ohio-class torpedo tube, he faced the same sudden decompression, which was even more severe than when a deep diver surfaced.

Because he did not slowly reduce the pressure as he ascended, but instantly returned from an environment of 20 atmospheres of pressure to an environment of 1 atmosphere of pressure.

When Meng Tao thought about this situation, he wondered if the blood vessels would suddenly expand and rupture.
Thinking of the underwater environment 200 meters below the surface, Meng Tao felt horrified again.

Although the free diving world record at that time was 243 meters set by free diving athlete Goran Clark.

Later in 2023, Goran Clark set a record of 292 meters at the CMAS World Indoor Freediving Championships in Kuwait.

This seems to prove that humans can withstand water pressure of nearly 30 atmospheres under extreme conditions.

But Goran Clark's challenging environment is completely incomparable to Lin Yuan's.

The first difference is that Golan Clarke was diving in an indoor environment, while Lin Yuan was diving in the deep sea, a world of difference in terms of danger and psychological impact.

The second difference is that the water temperature during Golan Clark's dive was a comfortable 18-22 degrees Celsius, while Linyuan was in the icy sea at -6 degrees Celsius.

The final difference is that shallow-water swimmers only need to quietly hover underwater, without any strenuous exercise, nor can they do so. However, Lin Yuan must complete the maneuver of holding onto the torpedo and swimming towards the Ohio-class.

These three differences combined will make Lin Yuan's adaptive training today extremely difficult.

Meng Tao knew that the only thing he could do for Lin Yuan was to leave the cabin with him.

If Lin Yuan had an accident, he could participate in the rescue immediately.

Seeing Meng Tao's solemn expression, Lin Yuan smiled and said, "It's me who's suffering today, not you. Why are you so serious?"

"We were afraid you'd be caught and eaten by a giant squid," Depp said with a sly smile.

"That's a deep-sea monster that's over ten meters long and weighs over a ton. I believe Lin Yuan is 1 meters underwater and would have no choice but to flee if he encountered such a creature."

Depp obviously wanted to liven up the atmosphere, but Meng Tao didn't give him any face: "There are no giant squids in the Arctic waters."

"No?" This hit the weak spot of Depp, who was uneducated.

"Really not!" Meng Tao said with certainty.

"Isn't it said that the prototype of the Kraken, the North Sea monster, is the giant squid? How could it not exist?" Depp didn't quite believe it.

"Giant squids live in warm waters with a temperature of over 10 degrees Celsius. They can't survive in the cold waters near the Arctic Ocean. I told you to read more and not have an empty head." Meng Tao mocked mercilessly.

In fact, Meng Tao didn't really despise Depp for refusing to go into the water.

After all, most people don't have the courage in such an extremely harsh environment.

But Meng Tao couldn't help but want to mock him.

The two of them argued all the way and came to the door of the escape hatch with Lin Yuan.

Lieutenant Colonel Louis was already waiting here, and behind him stood three submarine soldiers in diving suits.

"After you get out of the cabin, they will follow Meng Tao to protect you. If you feel unbearable, remember to send a signal." Lieutenant Colonel Louis said.

"I understand, thank you for your support." Lin Yuan said.

After saying that, the soldier next to Lieutenant Colonel Louis walked to the circular hatch of the escape pod.

He reached out and twisted the handle on the hatch.

"Bang!"

The safety latch on the hatch turned and the hatch opened.

Lin Yuan and others passed through the hatch and came to an escape capsule of about 6 square meters.

The design concept of the submarine's escape capsule is exactly the same as that of the space capsule.

When in use, the hatch inside the submarine is opened first, and after entering the escape capsule, the internal hatch in the direction of the submarine is closed, and then the outer hatch is opened to connect to the external sea area, and then exit the capsule.

When returning, the external hatch is opened first, the seawater is drained after entering the escape capsule, and then the internal hatch is opened to enter the submarine.

At this time, Meng Tao and three submarine soldiers put on diving helmets and prepared to leave the cabin.

Then they turned their heads to look at Lin Yuan and made a questioning gesture.

Lin Yuan smiled and said, "Add water!"

It is said to open the external hatch, but it certainly does not mean to open the external hatch directly in a rough manner.

Otherwise, under the huge water pressure, the sea water will turn into a strong water column, rushing in violently and pushing them against the wall of the escape cabin.

Therefore, before opening the external hatch, water must be filled into the escape hatch.

After the submarine is filled with water and the water pressure inside and outside is balanced, the hatch will be opened to allow them to leave the submarine.

Following Lin Yuan's instructions, water began to fill the escape capsule.

"Crash"

The sound of water could be heard, cold sea water was pouring into the cabin, and the water level began to rise slowly.

As soon as the sea water touched Lin Yuan's feet, he immediately felt a biting chill sweeping through his whole body.

cold!
It’s really cold!

It was as if a cold hand was tightly gripping his ankle, turning his blood cold in an instant.

The bone-chilling coldness made his toes numb, and he felt as if he had lost consciousness in an instant and could no longer feel his existence.

Lin Yuan originally thought that with his physical fitness, it should not be a problem for him to resist the sea water at minus 6 degrees Celsius.

But now he realized that the cold air at minus six degrees Celsius and the ice water at minus 6 degrees Celsius were completely different things.

For most people, being in 2-degree Celsius sea water would be too cold to bear and they would die within 30 minutes.

The sea water at minus six degrees Celsius would probably freeze most people instantly, and they would go into shock and lose consciousness in just a few minutes.

It is said that the cold in the north is a physical attack that can be resisted by wearing more clothes, while the cold in the south is a magical attack that makes people feel difficult to deal with.

Then the coldness of the icy sea water at this moment is definitely real damage!
Unreasonable absolute damage value was dealt.

The sea water was still rising at this time, and in a short time it reached Lin Yuan's waist, and his entire lower body was soaked in water.

The icy sea water seemed to penetrate into his skin, turning into a biting chill that directly hit Lin Yuan's nerve endings, causing him to tremble uncontrollably.

Trembling, trembling, trembling, the whole body began to shake uncontrollably.

The water level continued to rise and soon reached Lin Yuan's chest.

He felt as if his blood had frozen and lost the ability to flow, and his whole body began to tremble violently and involuntarily.

"Kakakaka!"

This was the sound of his teeth chattering.

Seeing Lin Yuan's expression, Meng Tao asked, "Lin Yuan, are you okay?"

Lin Yuan did not answer immediately. He closed his eyes and carefully felt the condition of his body.

The pain was still piercing, as if countless knives were cutting him all over his body. This was the severe alarm sent out by the nerve endings when they were stimulated by low temperatures.

My whole body was still shaking, which was an instinctive reaction to extreme cold.

At this time, Lin Yuan still felt extremely uncomfortable, but he also knew that the peak of the pain had passed.

It's like jumping into a lake carved out of ice for a winter swim in the cold winter. As soon as you get in the water, you feel like your whole body is frozen into a block of ice.

But after a while, your body will slowly begin to adapt.

Although it was still very cold, it was no longer unbearable.

If you start swimming, you may even feel your body starting to warm up, which helps to fight against the biting cold.

The same was true for Lin Yuan at this time. His physical fitness was as high as 30 points. After experiencing initial discomfort, he began to show strong physical adaptability.

The recovery ability brought by the legendary talent [Super Physique] allows him to recover quickly even from minor frostbite.

So Lin Yuan said to Meng Tao: "I'm fine. Once the water is full, we can connect it to the outside."

After saying this, the water level had already submerged Lin Yuan's mouth and nose, and soon filled the entire escape cabin.

Without an oxygen tank, Lin Yuan entered a state of holding his breath.

From this point on, time became a matter of seconds.

The submarine officers and soldiers nearby immediately opened the external connecting valve.

The connecting valve is not an external hatch, but the last step before opening the hatch.

When seawater was previously poured in, all the seawater entering the escape capsule passed through a one-way pressure control valve.

Therefore, although the escape cabin is filled with seawater at this time, the water pressure is still normal.

The next step is to connect to the outside so that the water pressure inside the escape capsule reaches the same level as outside.

The exterior hatch can then be opened.

As the connecting valve opened, Lin Yuan felt like he was thrown into vacuum-packed food.

In an instant, huge pressure came from all directions and squeezed him hard.

(End of this chapter)