Chapter 1421： Deck gun of nuclear submarine

In the previous era, the submarine did not stay underwater all year round. Most of the time was sailing on the water, and only after the target was discovered, it would dive into the attack.

Therefore, the submarine is not a structure that adapts to the elongated water droplets under water. Most of the submarines have the same structure as surface ships and are suitable for sailing on the water.

They are also naturally equipped with powerful deck guns.

After all, torpedoes are too precious, and many captains do not want to waste them, and keep precious torpedoes for use at critical times.

In the early days of the Atlantic battlefield, German submarines would warn the ship, and after the crew disembarked, they would float and attack with deck guns. If the opponent is armed, the submarine will use torpedoes to injure it, and then use artillery to clean up the mess.

During this period, their deck guns were of large caliber, mostly 88 mm and 105 mm.

The German Navy has made many achievements with deck guns. In addition to sinking several million tons of various merchant ships, it also has other combat achievements.

For example, the "U-242" boat even shot down a Soviet aircraft with 88 mm deck guns, and the "U-134" also shot down a US Coast Guard airship with 88 mm deck guns.

"U-130" used 105mm deck artillery to destroy the oil refinery and warehouse in Crossell in the Caribbean. The "U-711" destroyed the Soviet "Pravoč" radar station and the "Prague Bonzga" radar station with 88 mm deck artillery.

However, with the continuous increase in the amount of allied anti-potential forces, the German submarine forces often face threats. For them, as long as they are found, it means being destroyed. Therefore, in the later stage, the German submarine forces almost lost their operation deck guns. Accordingly, they also cancelled the deck gun, which is no longer needed.

Now, Germany has not faced such a threat. From the perspective of later generations, it would be quite funny and exaggerated to install deck guns on submarines, but when you think about it, it is the inevitable choice of the German Navy.

You must know that only nuclear submarines can attack the Arctic route. With only one nuclear submarine, it is impossible to cross the Arctic repeatedly and return to its own port for replenishment. The precious torpedoes can be consumed with one. One.

Then, using torpedoes to attack key targets and deck guns to attack secondary targets are good choices.

On the other hand, the mission of the deck gun has changed. It is mainly used for air defense.

Letting the submarine and the aircraft fight is definitely a dead end. The advantage of the submarine is concealment. However, in the event of an accident, such as a nuclear submarine’s reactor failure or oxygen generation system failure, it must be air defense when it has to surface. Means?

Therefore, its deck gun is not a large 88mm or 105mm deck gun. It is not easy for such a large gun to hide under the sound-absorbing tiles of a submarine.

It is equipped with a rapid-fire 20mm Bofors gun. This gun can be aimed at both air and sea. In German military equipment, it belongs to the role of panacea. For example, in addition to its own anti-aircraft artillery, it is also used Widely improved for tank cannon, aerial cannon, etc.

Now, on the submarine, it is also cleverly hidden in front of the command tower.

Another reason for this is that almost all submarines in this era have a double hull layout.

Inside is a pressure shell, which is used to withstand the huge pressure of seawater. The inside of the pressure shell is the working environment of the personnel. If it is a single shell structure, the pressure shell is also an outer shell.

The structure of the double shell is different. On the outside of the pressure shell, there is a non-pressure shell with a distance of more than one meter in the middle. It is filled with seawater. At the same time, various external equipment can also be deployed inside. The advantage is that it greatly increases the anti-strike capability of the submarine.

For example, in a later typhoon, there is more than two meters of seawater between the two shells. When the other torpedo comes and explodes outside, it can only damage the outer non-pressure-resistant shell, and it is almost ineffective to the inner pressure-resistant shell. .

At the same time, this is also convenient for activities in areas such as the Arctic. In case of encountering ice floes or something, it can be carried down hard, and when it is critical, it can even break the ice directly on the Arctic Ocean.

Following Otto's order, the three sailors led by the second officer of the submarine stepped on the wet deck and came to the front of the deck gun.

Two people quickly turned up the deck gun. The other two were responsible for dismantling the watertight shell box on the other side and completing the task of loading the bomb. Otto looked at them from above and shouted: "Take down the protective cover! "

In World War II, when the German submarine soldiers used deck guns, some serious accidents occurred, which was the bombing of the chamber. This was completely caused by negligence.

Deck guns must sail under the water with the submarine. Even if they are resealed, water will enter. The seawater is corrosive. Therefore, the muzzle of deck guns is usually covered with a protective cover, which plays a role of sealing. Turn it on when you use it, but when the sailors do it, they always forget it!

Under Otto's reminder, the second-ranking officer realized that he had made a serious mistake, and quickly stepped forward to take off the cover on the muzzle, and then everything was ready.

Fire it!

"Tom Tom Tom!" The 20mm deck gun is definitely not powerful enough. Dealing with a cargo ship of tens of thousands of tons is like a pistol against a tank.

If it is a warship, it may take a lot of artillery to sink it, but now it is only a cargo ship.

"Boom!" The armor-piercing incendiary bomb penetrated into the belly of the cargo ship, and immediately exploded a big hole. The hull of the cargo ship couldn't withstand such an impact. It immediately broke a hole and the sea water poured in.

Okay, move on to the next one!

Almost every cargo ship only suffered three shells, and the cargo ship was opened with a big hole and slowly sank.

"Two cars, go back at full speed!" Suddenly, Otto shouted loudly.

The two propellers at the tail immediately revolved at a high speed, dragging the 6,000-ton hull back. Just as they retreated hundreds of meters, the cargo ship that had just been hit in front exploded violently.

"Boom!" The weapon carried inside was violently smashed. On the sea, with it as the center, within a radius of several hundred meters, all were terrible flames!

If the submarine hadn't retreated just now, I'm afraid it would be damaged by the falling pieces of the explosion. Everyone was relieved.

Captain Otto's response was really too quick.

"Look, what is that?" a watcher called.

In the explosion, the cargo ship was all torn apart. The cargo it transported was scattered on the sea. There was a big cylindrical thing floating in the distance. It looked very much like equipment in an oil refinery?