Chapter 1572

Brothers and sisters, if you have a vote, vote for one. The cartridge case is here. Thank you****

On the hunter fleet, the captains discussed on the radio public channel:

"Snow, these bastards are crazy! Yes, there are too many of them. Guys shout, "Damn it, we must kill these bastards!"

"Yes, or shall we call the police? They must be illegally armed water cannons. Besides, they shot so many people, call the police... "

"Don't call the police, fool. Brother Robin's ship also has water cannons. Most importantly, although they shot, didn't you shoot? And we have large caliber rifles on board! "

"Stop talking and be careful. There are many hidden reefs in the sea area we are entering now. Be careful not to run aground!"

"It doesn't matter. I walked here. The reef is not dangerous. Do those sons of bitches still think this is the Bermuda Triangle? Ha, how could our ship hit the reef with such a low draft... "

"Boom!" A dull noise!

"Fark! Fark! Falk! " Robin's frightened roar immediately spread through the public's ears through the radio.

A line of hunters were stunned. Someone shouted, "brother Robin, what's going on?"

Where is Robin in the mood to answer? He was just planning where to summon his brothers for revenge. This time he really lost his hair. Now he still feels his skin burning and his image is even more embarrassed.

Suddenly, I was the pirate. It seemed that I had suddenly hit something or been hit by something. In short, the ship shook violently, and then several red lights in the cockpit lit up, and the buzzer kept ringing.

"Woo woo!"

The beep was piercing, and the ship continued to vibrate.

Qin Shiou controlled the giant demon. When he waited until I was the pirate and passed over a ferocious reef, the giant demon dormant here first chiseled a gap at the bottom of the ship with a mace, then used the war of beacon mace, bombarded the gap one after another, and quickly expanded it into a hole the size of a basin.

More than that, he also controlled the giant demon to wander forward and opened a big hole in front of the ship, which was bigger than the previous one, creating the scene of the bottom hitting the reef and then hitting the reef in front.

The surging sea water rolled and roared into the ship. Seeing this, Qin Shiou smiled and ordered the giant demon to leave. That's it. He has deep power and fame!

The two gaps flooded at the same time, and I was the pirate, and began to sink slowly.

Modern ships use watertight compartment technology - of course, I am proud to say that this technology was invented by the Chinese people and is known as one of the four ancient inventions of navigation. It appeared in the Tang Dynasty and improved in the Song Dynasty. This technology was very advanced when Zheng He went to the West.

The so-called watertight compartment, as the name suggests, is to use the compartment board to divide the cabin into compartments that are not connected to each other. In this way, because the cabins are closely separated, even if one or two cabins are damaged and flooded during navigation, the water will not flow to other cabins.

As a whole, the ship will not sink as long as it maintains considerable buoyancy. With the cushion of watertight tank, even if it is greatly damaged, even if the ship can not support too much water, there is time to reduce the load by discarding the goods and support the ship to continue its normal navigation.

Modern ships adopt higher technology. After a watertight tank is flooded, as long as the ship does not sink, because these tanks have strong pressure machinery, which can create pressure to discharge the sea water, so that it can be repaired and will not affect the ship's continued navigation.

Therefore, it is reasonable to say that with watertight compartments, the general ship will not sink.

That's why Qin Shiou opened two big holes for me, the pirate, and the two watertight compartments flooded together. That's enough for the ship to drink a pot.

Civil ships generally have eight watertight compartments. As long as four watertight compartments can be used normally, the ship will not sink. At most, it is seriously flooded.

So at first, although Robin and the sailors on the ship were frightened, they were not desperate. They scolded and ran towards the cabin. After determining the situation, Robin angrily kicked the cabin door and shouted, "Spencer, damn it, where are you fool? Come on, pull the pump pipe over to me and pump out the water! "

The chief mate hurried over, summoned the sailors to carry the pump pipe into the cabin and began to pump water out.

Robin summoned the second mate and the chief engineer to prepare for remediation. The three began to negotiate with the drawings.

But something was wrong. When they negotiated, the ship did not stop sinking, but sank slowly and unswervingly.

It is reasonable to say that after one or two watertight compartments are flooded, they will not sink as long as the waterproof door is closed in time. Because at this time, one or two tanks on the ship are flooded, and the ship will enter the equilibrium stage after lowering a certain distance. After the water level in the tank is flush with the sea level, the water will not continue to be flooded according to the principle of air pressure.

So why is the ship still sinking?

Robin was shocked and angry. At this time, the chief officer rushed out with the sailors. He grabbed the chief officer and shouted, "what's the matter? Damn it, why is the ship still sinking? "

The chief mate cried in horror, "hurry up, captain. The ship is sinking. We have to abandon the ship!"

Upon hearing this, Robin raised his foot and kicked the first mate who didn't stand firm. He roared angrily, "nonsense, how can the damage of two watertight compartments lead to the sinking of the ship?"

The chief mate said with a sad face, "I don't know. Maybe the waves are too big. The water rolls in with the waves. It has exceeded the waterproof partition and entered other compartments!"

These cabins of the ship are not completely closed because of the problems of air pressure and material strength. In short, the problem of material strength is thermal expansion and cold contraction. If the cabins are completely closed, high-strength materials are required, otherwise the steel plates of the cabins will be deformed due to cold and heat changes over time.

Except for warships, some luxury cruise ships and important ships, most ships will not use closed watertight compartments, including 10000 ton giant ships. There is a waterproof partition between the compartments, and there is a gap above the partition, which can balance the air pressure and give the space for the deformation of the compartment materials.

In this way, there is a hidden danger, that is, it is possible that even if only one watertight compartment is flooded, the seawater will roll up and enter other watertight compartments through the space above the watertight partition.

According to common sense, this extreme situation will not occur. This is only in theory. In fact, the probability of this kind of thing is too low. This kind of thing will happen only when it hits the reef in a storm.

However, if a ship hits a reef in a storm, it must die, because the ship will continue to hit the reef when attacked by the wave storm. Even if the watertight cabin is fully closed, it will all be damaged and flooded, resulting in the sinking of the ship.

Therefore, in reality, the watertight compartments of civil ships will not be completely sealed. After all, civil ships are different from warships. Warships have to perform tasks. Some tasks are carried out in the storm. Civilian ships will take refuge in the port in the storm.

In this way, I am the pirate tragedy