Chapter 1184

All electric propulsion is naturally very advanced, and in this regard, it is in the leading state in China. However, general large ships are driven by conventional drive, mainly because the electric propulsion system required by large warships is too terrible, and there is no good in various countries at present.

In particular, aircraft carriers are super large warships with tens of thousands or even more than 100000 tons.

In terms of submarines, it goes without saying that all electric propulsion has extremely powerful mute effect, and has advantages in acceleration performance and other aspects.

Hearing Jiang Yanhai's words, the soldier at the helm over there immediately said, "whether to shut down the nuclear reactor and adopt the all electric propulsion mode."

"Yes!" Jiang Yanhai agreed, but was surprised, because the soldier said so directly, which means that the submarine's nuclear reactor can be shut down at any time... And not only at any time, but also its battery can be used for a very long time.

Nuclear reactors are not like diesel engines. Gasoline engines can be turned off at any time and ignited at any time.

At the dock, if the submarine nuclear reactor is shut down and then restarted, it will take about 12 hours, because it wants to gradually raise the nuclear reactor from normal temperature to a high temperature of hundreds of degrees Celsius, and this process can not be too fast at once, but must be raised slowly.

This is mainly to prevent thermal shock, just like pouring hot water directly into a cold glass.

In addition, power is needed to start the reactor in this way. If there is power on the shore at the wharf, there is no problem, but batteries are needed in the sea.

In fact, if the reactor is shut down in the sea, it must be a hot shutdown, that is, although the reactor is stopped, it is still maintained at a high temperature. In this way, if you want to start it, it can be completed within two or three hours.

However, this thing basically won't shut down at sea, but it can shut down at will here, because the cooling system of the nuclear reactor is one of the main sources of noise of the nuclear submarine.

Many reactors are useless when they are shut down, because the cooling system still has to operate, so in reality, this thing will not stop, but it will stop here.

This means that the nuclear reactor here is definitely not any kind of nuclear reactor that Jiang Yanhai knows or knows.

Its technology is undoubtedly very advanced. If the reactor can be stopped at any time like gasoline engine and diesel engine, it will have high availability.

"Report the current submarine status." Jiang Yanhai issued another order.

"At present, the speed is 10 knots, and the noise DB is expected to be 80 dB, which is lower than the ocean background noise, and the depth is 625 meters."

"Did the sonar respond?"

"Report, no, no voiceprint features of the enemy have been detected. At present, all voiceprint features locked by the computer are natural creatures."

At this time, submarines naturally use passive sonar. It is impossible to use active sonar. Active sonar is equivalent to exposing themselves. They don't even know where the enemy is. Naturally, it is impossible to use active sonar at this time.

"I see." Jiang Yanhai nodded. He found another good thing. There is a huge natural biological voiceprint Library in the submarine. Although the voiceprint library may not be the same as the real underwater creatures, these data are good things.

To tell the truth, Jiang Yanhai has no research on submarine combat tactics. Now he is just catching up with the duck and putting it on the shelf. However, combat is sometimes the same. Without considering other weapons and equipment, he only needs to consider why the other party should do so.

In such a state, if the enemy searches for them, it must come to catch them.

Submarine warfare is sometimes compared to patience, and the enemy may not find them.

"Slowly dive to the limit depth." Jiang Yanhai thought and gave another order.

"Yes!" the helmsman here immediately began to operate.

"The submarine is diving. The current depth is 630 meters... 631 meters..."

The depth of the whole submarine was increasing. Jiang Yanhai didn't speak. He just watched silently, watching its depth slowly decline from 625 meters to 800 meters, and then began to stop.

"Has fallen to the limit depth."

"Continue to move forward slowly and pay close attention to sonar." Jiang Yanhai whispered.

"Yes!"

What is the concept of 800 meters deep sea? There is endless darkness around here. You can't see anything outside. There is no light and almost no life.

Of course, it's almost. In fact, there are still creatures in the deep sea, but you don't know what kind of state these creatures in the deep sea are.

The submarine kept moving forward, and the surrounding air seemed to begin to become dignified.

As time passed, about half an hour later, suddenly a huge impact came, as if some huge object had hit the submarine, or the submarine had directly hit some object.

Suddenly, the sound seemed to release a huge signal in the deep sea, and with the sound came a huge vibration. Jiang Yan Haiyan quickly grabbed the objects around him.

However, other officers and soldiers in the command room were directly thrown out by the impact and directly hit other instruments.

What's more terrible is that with this huge sound, "creak" and "creak" the toothy sound of metal extrusion.

You know, such a sound has never appeared before, which means that the submarine is very safe in the 800 meter deep sea, and its submarine strength is enough to maintain such deep-sea activities.

But now there is such a sound, which means that its shell is broken!

"Are you all right?" Jiang Yanhai asked loudly.

"Nothing!"

"Nothing!" all the soldiers agreed to respond, but at the same time, Jiang Yanhai saw a look of fear on their young faces.

If the death rate of plane crash is almost 100% in the world, then the submarine crash in the deep sea... That is absolutely 100%, not almost those two words.

Besides, the kind you can't even find a body.

Every submarine soldier knows what he has experienced, but every submarine soldier has no hesitation when he steps into this post.

What else did Jiang Yanhai want to say? Another "boom" and a more dull impact came directly. This time, the whole submarine seemed to be directly hit by huge force.

With this impact, the two people's fear of "creaking" began, and a harsh warning sounded inside the submarine.