The invention of the submarine is based on the ancient Archimedes principle. Therefore, compared with surface ships, a necessary device for submarines is a water tank. By pouring water into the water tank, increasing the gravity of the submarine, it sinks.

If you want to float to the sea, you need to use the compressed air carried by the submarine to discharge the sea water, just like a fish bladder. During the North American War of Independence, submarines were first invented, and what made the submarine shine was still World War I and World War II.

Of course, the protagonist is not an island submarine.

Now, the Yi-74 submarine was injured by the anti-submarine deep bomb. It must float to the sea quickly, otherwise it will never float.

The ghost head slut was very nervous. After he found that the tail had leaked, he immediately ordered the ballast tank at the head of the boat to evacuate.

Not all water tanks are empty, of course there are some considerations.

When the submarine completely enters the sea water, it can rely on the elevator to operate the various actions of the submarine, which is very similar to an aircraft. If you want to make the submarine float, you need to make the head of the boat go upwards.

How can the submarines quickly form this state? Of course, it is the sea water of the first evacuation boat!

The compressed air poured into the ballast tank of the bow, discharged the seawater from the bow, and the weight of the bow was immediately reduced, while the tail was poured in by sea water. In this way, the submarine was naturally raised like a seesaw!

The bow of the boat rises rapidly, and every submarine soldier tightly holds the handrail next to it. This is the craziest and exciting type of submarine operation, and it floats up urgently!

(In later generations, the United States often did this, but as a result, they often collided with sea-surface ships, causing several major accidents.)

Yi-74 must do this because it has already gotten into water. If it cannot go up quickly, it may never go up!

The hull continued to rise, and soon the angle exceeded 30 degrees. At this time, the ghost head slut felt that something was wrong.

He actually forgot that there was still sea water pouring in at the tail!

In normal emergency floating, it is enough to evacuate the sea water at the head of the boat, but now, there is still sea water pouring in at the tail, and the posture of the boat has changed too quickly!

When the angle exceeds thirty degrees, there will be danger!

"Quick, empty the ballast tank at the tail!" He was giving the order quickly, but unfortunately, it was too difficult to perform this action in the tilted hull!

Several sailors wanted to let go of their hands, so they unscrewed the valve. As soon as they let go of their hands, their bodies fell down involuntarily!

The rising angle of the hull has exceeded forty-five degrees!

The sound of the slut's high decibels sounded on the entire submarine: "Hurry, empty the sea water at the tail, otherwise we will all be done!"

"Squeak, squeak!" Finally, a submarine soldier reached the valve and used all his strength to unscrew an angle.

The compressed air started to flow into the ballast tank, but unfortunately it was too late!

The hull's rise continues, and the speed is getting faster and faster!

The things inside the entire submarine fell to the rear of the submarine because the submarine was low at the back, high at the front, and reached seventy degrees, and were still rising!

Just like the fishing float, the top is light and the bottom is heavy, so of course it stands up!

A long submarine, originally swimming around the sea like a fish, suddenly, the fish stood up and looked a little funny, but for the sailors on the submarine, it meant the arrival of death!

The submarine sailed underwater and relied on the power of the battery. This ancient lead-acid battery was used until later generations and was still serving electric vehicles and Red Three-wheelers.

When this battery is charged and discharged, gas will be generated. In order to prevent the battery from overpressing due to excessive gas, there are ventilation holes on it. At the same time, unscrewing the nuts for ventilation holes will also facilitate replenishing the electrolyte.

At the same time, this kind of battery is very heavy, so it is arranged at the bottom on the submarine, so that the submarine is more stable.

When the submarine was erected, the battery pack was erected, and then, the terrible sulfuric acid flowed out of the vent hole.

Not bad, it is sulfuric acid! Lead acid battery, the electrode is lead plate, and the electrolyte is sulfuric acid!

(Don’t worry about electric cars in later generations, because most of them are already sealed, which solves the problem of air bubbles caused by charging.)

The surging sulfuric acid formed a sea of ​​oceans, which corroded the partitions in the cabin in almost a short time, and the other end of the partitions was the terrible sea water!

In the small hole, sea water poured into the battery compartment and met sulfuric acid. A violent chemical reaction occurred. The continuous bubbles were circulating and rolling upwards. It was a lot of hydrogen!

Then, the battery was short-circuited, and a small electric spark detonated the hydrogen!

"Boom!" A huge explosion came from the direction of the battery compartment. This explosion was even more violent than the explosion of a deep bomb!

In the violent explosion, the Yi-74 submarine was torn from the middle and into two halves!

The surging sea water poured into the submarine along the broken opening. For every submarine soldier, their time was calculated in seconds.

Baga!

Before the battery compartment was destroyed, the power supply of the entire submarine was interrupted, and the inside of the submarine was pitch black and turned into a cold steel coffin.

Listening to the sound of the sea water, the ghost head looked at the slut, and only cursed.

Then, the huge sea water enveloped him.

The submarine Yi-74 stopped floating, broke into two halves, and continued to sink downwards.

At this time, the surface ship Taylor was also coming quickly. The sonar on the warship heard a loud noise underwater. This movement could only be caused by the submarine explosion!

Deep water bombs will not cause such a big noise. When the submarine is damaged, the torpedo carried by the submarine may explode, which will cause such a sound.

Suddenly, everyone was in a state of excitement and finally killed the German submarine!

With the huge explosion, a dead fish slowly floated up from the sea water, accompanied by huge diesel oil pollution, and it was certain that the target had been destroyed!

"Reported, the command sent an order to confirm the nationality of the target." Captain Heim, the captain of the Tyler, received the order.

Confirm the target nationality? Isn't it Germany? Heim looked at the things floating on the sea in the distance with his telescope. It was very strange. Then, he found something on the sea.
Chapter completed!