The military industry is investigating you and you are investigating me? I sell fishing rods!

After pondering for a moment, Qin Shan spoke again: "Xiao Su, why is there no enclosure on the back of your submarine?"

The enclosure is the island-like thing above the submarine's head.

At present, almost all submarines in the world have such enclosures.

However, Qinshan did not find this thing on the Qianjiao. The entire body of the Qianjiao was like a huge elongated water droplet. The surroundings were extremely smooth and there were no protruding equipment at all. In Qinshan's opinion, , somewhat incredible.

You know, the protrusions on the world's mainstream submarines are not deliberately installed after eating too much.

These things all have their own key roles.

Take the enclosure for example. Although the existence of the enclosure makes the submarine look ugly.

However, there are various observation equipment on the submarine, such as periscopes, attack periscopes, search radars, radio direction finders, and various communication equipment, such as transmitting and receiving antennas, satellite communication antennas, and various ESM antennas used for electronic warfare, etc. , these things are almost all in the enclosure!

There are also things like the casing and rudder, which are also on the casing!

In layman's terms, the rudder is what maintains the balance of the submarine. Without this thing, the submarine cannot maintain stability when sailing underwater, and accidents such as rollover may even occur!

The Third Reich had built submarines without enclosures.

Then the submarine lost its balance and rolled directly into the deep sea...

To this day, hundreds of years have passed, and the submarine's enclosure is still retained. It's not that it doesn't want to be cancelled, but that it simply cannot be cancelled!

Facing Qin Shan's inquiry, Su Heng slowly said: "The submersible dragon is equipped with multiple stabilizers to maintain stability and direction, and it also has an intelligent monitoring system that can monitor the submarine's navigation attitude in real time and perform intelligent control at the same time. The hull is needed to maintain the balance of the ship."

Hearing this, Qin Shan's eyes moved slightly, and his heart became more and more amazed.

After thinking for a while, Qin Shan stepped on the hidden dragon under his feet and said again:

"Xiao Su, what kind of material is your submarine made of? Why does the shell feel so soft, not like a metal material?"

Just when he touched the latent dragon, Qin Shan felt something strange about the latent dragon. The touch was not like steel at all. Steel felt hard and had no tactility at all.

But the shell of the latent dragon seemed to be covered with a layer of cowhide. It was soft and beyond Qin Shan's knowledge.

He even wondered for a while whether Su Heng had covered the shell of the hidden dragon with a special layer of anechoic tile-like material...

Amidst Qin Shan's doubts, Su Heng said slowly:

"It is a metal material, but it is a special alloy. I call it Xuanwu alloy. Most of the entire submarine body is made of Xuanwu alloy. This alloy feels similar to cowhide, but in fact Its rigidity and toughness far exceed that of titanium alloy, and it has the characteristics of becoming stronger when strong! ”

"Well... the professional explanation is too complicated. Simply put, it's like a non-Newtonian fluid. The stronger the pressure, the stronger the rigidity of the basalt alloy!"

"But just like non-Newtonian fluids can also be broken, basalt alloys also have endurance limits. Currently, the maximum depth that the submersible dragon can withstand is recorded by the data I showed you before, which is 1455.8 meters. Beyond this depth, the submersible dragon can dive at any time. They may be crushed by water pressure.”

Listening to Su Heng's response, Qin Shan's eyes kept flickering.

Wisps of wonder kept passing by.

He is not a scientist, and he does not understand professional things.

But what Su Heng explained was easy to understand, and even an ordinary person could understand it.

"I really don't know how your brain is able to create so many incredible things..."

While thinking, Qin Shan couldn't help but sigh.

Hearing this, Su Heng shook his head slightly: "Mr. Qin, you are exaggerating, and if you insist on saying it, I don't call it creation, I can only call it discovery."

"The essence of science is to constantly discover, discover the characteristics of various substances in the universe, and the laws between them, and use these characteristics and laws to create things that meet our needs. In fact, as long as these are discovered, many things It’s easy to figure it out.”

Simple?

Hearing what Su Heng said, Qin Shan couldn't help but smile bitterly.

The essence of science is discovery. This is indeed true. The whole world cannot deny this.

Just like friction generates heat, primitive people discovered that friction generates heat, thus allowing mankind to enter the "civilized" era.

So is frictional heat created by humans?

Obviously not. Before there were humans, the universe itself had this law!

Human beings have just discovered this law and exploited it.

I just say that, but how can it be so easy to find out?

It took primitive people countless thousands of years to discover that friction generates heat!

Although modern society is highly technologically advanced, it is only achieved by the hard work of countless scientists and countless sweat!

If discovery were that easy, it wouldn’t have taken humanity so long to enter modern civilization...

After a long time, Qin Shan shook his head and suppressed the thoughts in his heart.

Then he followed Su Heng's footsteps and walked towards the entrance of the hidden dragon.

It didn't take long for the two of them to arrive at the entrance. But at this moment, as if he thought of something, Qin Shan spoke again:

"Xiao Su, how many decibels is the underwater noise of this submarine?"

Underwater noise is a basic parameter for evaluating the quality of a submarine, especially military submarines.

Military submarines all pursue the smallest possible underwater noise, so that the probability of being discovered can be minimized, and correspondingly, the survivability can be maximized!

And what is the most important thing for a strategic submarine?

It is not how many missiles it carries, but survival!

If it does not even have the ability to survive, no matter how many missiles it carries, it is just a large live target!

With the slow sneak speed of the submarine, once it is discovered, it is basically difficult to escape death!

Even the most advanced nuclear submarine of the Black and White Eagle is the same. The submarine basically has no ability to fight back against anti-submarine weapons!

In this regard, the submarine of Longguo is scornfully called an underwater tractor by the Black and White Eagle because of its excessive noise!

"Underwater noise?" Facing Qin Shan's inquiry, Su Heng pondered for a moment, and then shook his head slightly: "This has not been tested. The design of the submarine is just a sightseeing submarine, and there is no technical demand in this regard."

Hearing this, Qin Shan sighed slightly.

A little disappointed, if the noise of the submarine is too loud, everything else will have to be reconsidered.

As I said before, a submarine that cannot hide is a living target!

If it is discovered, the probability of a submarine escaping is only one in a hundred!

But on second thought, with the other parameters of the submarine, even if the noise is too loud, it can be completely transformed.

With a displacement of 18,000 tons, there is too much redundant space for transformation!

Even if 8,000 tons are used as silencer transformation space, the submarine still has a huge displacement advantage of 10,000 tons!

It is still one of the largest submarines in the world!

While Qin Shan was thinking, the two followed the entrance of the submarine and entered the interior of the submarine.

"Hiss!!"

As soon as he entered the interior of the submarine, Qin Shan couldn't help but let out a sound of sucking in cold air.

Looking at the bright and spacious space in front of him, Qin Shan couldn't help but open his eyes wide.

"How can the internal space of your submarine be so large?"

At this moment, Qin Shan was shocked again.

As a submarine soldier, what submarines has he not seen?

From conventional power submarines to strategic nuclear submarines, he has seen almost everything, and he knows the scene inside the submarine very well.

But the scene in front of him is completely beyond his cognition.

In the past, the submarines he had seen, whether conventional or nuclear-powered, had cramped interiors.

Especially conventional-powered submarines, where it was impossible for people to stand and walk.

When resting, they had to squeeze into a bed that could barely accommodate one person's body, and it was difficult to turn over!

Whether at home or abroad, many submarine soldiers even suffered from mental illnesses due to such an environment!

Because of this situation, almost all submarine soldiers in the world have to undergo a physical and mental health examination every once in a while. Once a problem occurs, they have to go for health diagnosis and treatment as soon as possible. If it is serious, they will even be directly retired!

The interior space of the submarine in front of him can only be described as exaggerated!

The spacious and bright space once made Qin Shan think that he was not in a submarine, but a luxurious villa!

"Is it big?" Hearing Qin Shan's exclamation, Su Heng looked around and then shook his head slightly.

Is this considered big?

The submarine he originally designed had a maximum displacement of 30,000 tons!

However, considering the cost and port commuting conditions, in order to avoid embarrassing situations like the empty 380 passenger plane, Su Heng modified the submarine and reduced the displacement to 18,000 tons.

Compared with the original design, this 18,000-ton submarine can only be regarded as a baby, what's so big...

Noticing Su Heng's nonchalant and even slightly disgusted look, Qin Shan's mouth twitched slightly.

With his IQ, it was easy for him to judge Su Heng's thoughts.

"Xiao Su, I'll take you to see our nuclear submarine some other day"

Qin Shan said faintly with a sigh.

Hearing this, Su Heng was startled.

Then his eyes lit up.

To be honest, he was not very interested in nuclear submarines.

He did not understand the military, but he also knew the basic knowledge of modern ships. Whether it was military or civilian, it was nothing more than boiling water!

The so-called nuclear power was just a change of fuel to boil water.

It sounds high-end, but it was actually just that.

The reason why Su Heng dislikes nuclear power, in addition to the pollution of nuclear power, is the most fundamental reason.

In Su Heng's view, things that boil water are really not attractive.

However, although Su Heng is not interested in boiling water, he is very interested in the weapons on nuclear-powered submarines.

He has been tinkering with the submarine for some time, isn't it just tinkering with weapons?

Originally, he wanted to install electromagnetic weapons on it, but electromagnetic weapons obviously don't work underwater, so this plan was directly abandoned after Su Heng studied it.

The same is true for high-energy weapons. The underwater environment is not suitable for the use of high-energy weapons.

He was thinking about whether to add a ram to the submarine and drive the submarine directly to ram it. Now Qin Shan took the initiative to ask him to visit the nuclear submarine. This is completely like sending a pillow when you are sleepy.