The artillery on the land can only be cooled by nature. If other methods are adopted, it will be too cumbersome. After all, on the ground, the self weight of the towed artillery is too large, which is inconvenient for mobility. When the artillery position is deployed and a few guns are fired, the position must be transferred quickly, otherwise the artillery of the other party will be covered by fire at the next moment. Although the artillery is powerful, it is the king of land warfare, In fact, the artillery is very dangerous. The noise of artillery fire will damage their hearing. Once they are covered by each other, it is the most tragic way to die.

The weight of towed artillery must be reduced, and so must self-propelled artillery. Generally, when the body is more than 60 tons, the mobility is greatly limited, and many bridges can't bear it. All these limit the weight of ground artillery, so that they can't actively dissipate heat.

But naval guns are different.

Naval guns are installed on warships. Warships often have a displacement of thousands of tons. Do you still care about adding some heat dissipation? Besides, what warships lack most in the sea is water.

Therefore, it is a common technology for artillery on warships to use water to dissipate heat in order to increase firing speed.

If subdivided, there are two gun barrel cooling and heat dissipation technologies: internal cooling and external cooling. The internal cooling is to add a cooling channel when casting the gun barrel, which is not easy to achieve, so it is mainly used for external cooling, that is, cooling outside the gun barrel.

This is very simple. The cooling water pipes can be wound around the outside of the naval gun, and the fresh water for cooling is circulated inside. When the gun fires, the water is heated, and then circularly flows away to take away the heat, which can reduce the temperature of the gun barrel and meet the needs of continuous shooting.

This way, just like the previous heavy machine gun, bread a cooling water tank outside. It's all right in winter. Add ice directly and boil it in the end.

In addition to this technology, there is also a simpler technology, which is the external cooling open circulation technology. After a few shots, when it is hot, it will directly spray water into the gun barrel, spray it from the muzzle, some evaporate, some flow down the gun barrel and drain it at the bottom. This simple and rough way is not used by old maozi, but by European people, It does not need an external circulating water channel and can reduce the weight of the gun barrel. However, this water is directly wasted and cannot be reused.

Although it is sprayed inside the barrel, it is also called external cooling technology. Internal cooling refers to the cooling method inside the barrel steel of the barrel.

In the Han Dynasty, the gun barrel adopts the first method. It surrounds the circulating waterway outside. In this way, it can fire continuously when the inside is shooting and the outside is cooling. In addition, in terms of ammunition supply, it still adopts single chain ammunition supply, regardless of the size of the shell. In this case, its firing speed is as high as 40 rounds per minute. It can be said that such a 203 mm naval gun, When the fire continued, the fire density could catch up with an artillery battalion of the army.

Of course, this gun tube water-cooling technology is used all over the world, but the eagle people don't use it. For example, the eagle people's main naval gun mk45 127 mm naval gun now has a first-class automatic control system, but the firing speed is only 20 rounds / min. It is because this kind of naval gun does not use the common gun tube water cooling device on board, but adopts the air cooling method with poor cooling effect as on land.

Of course, the eagle people have their own considerations. Their warships have a mature Aegis system, and the naval guns don't have to undertake air defense tasks. If they don't engage in air defense, the firing speed of the naval guns doesn't seem to be so important.

As for anti-ship, the eagle navy has enough aviation. If the enemy's warships are close to such a distance, their fleet will almost perish.

The Han state is not. For the Han state, the demand for naval guns is still great. If we want to say the reasons, economic considerations are one of them. After all, the economy of the Han state is not very strong. Look at the air force, even with advanced missiles, but the air force rarely carries out live fire in daily training, and when shooting with live fire, It's mainly shooting rockets. After all, it's cheap.

This is especially true for the Navy. Air defense, anti-ship and these missiles are very valuable. Therefore, it is cheaper to fire a few shells during live ammunition training. Of course, it is also relatively cheap. Such a shell can cost thousands of yuan. Now it has fired dozens of guns, and it has cost more than 100000 yuan?

Of course, the money is finally counted on the monkey. The monkey's disobedience leads to a waste of a lot of ammunition, and they have to lose money.

Of course, whether they can lose money depends on whether these monkey warships can be controlled by their own side.

Our own naval gun has many functions, such as air defense, ground attack and sea shooting. Now sea shooting is still a main task.

The whole fleet was shrouded in black smoke. When the smoke dissipated, Captain Wei was in high spirits on the bridge of ship 167.

"The monkey's warships have stopped!"

"Let all their personnel come out and stand on the deck!" Captain Wei said: "they are not allowed to carry weapons and wait for our inspection!"

This is the power of the cannon. At this moment, Captain Wei thought of a word. The truth is within the range of the cannon!

Why not a missile? Because there are no missiles in the era of those who say this. However, even with missiles, they can't compare with the shock brought to them by the current naval guns. It's really fun to see that scene just now. This is the pressure brought by the naval guns to the other party, which can't be compared with others. If there are anti-ship missiles, dare you play like this? Even if there are hundreds of thousands of pieces, we can't spoil them like this.

This kind of naval gun made by President Qin is really good!

"Special forces, prepare to dispatch and control their warships!" Captain Wei continued to give orders.

Use naval guns to force them and prevent them from moving. Then, your side can send someone to go up and control their warships. Although there are certainly not many people on your side, your side has artillery threatening them. Captain Wei looks at his front. At this time, the 203 mm naval gun is still holding its gun barrel high and waiting as long as there is a situation, Will act at any time to protect the territorial waters of the motherland from monkeys!

The monkeys have lost their last confidence. They dare not run. Many people are wet and waiting for their fate on the deck.

No matter what the monkey does, in the face of the absolute force of the state of Han, any small action is useless. This is the territorial sea of the state of Han, which is a fact that everyone agrees!

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