In order to prevent the enemy's blows, it has thick armor, and the enemy is constantly developing new armor-piercing technology in order to penetrate it.

In the beginning, the thickness of the tank's armor was only a few millimeters, a dozen millimeters, and by the end of World War II, the thickest part of the tank's armor had begun to develop towards 200 millimeters.

However, simply increasing the thickness to increase the protection does not completely solve the problem, the thicker the armor, the heavier the weight, not only the diesel engine that needs more horsepower, but the bridge and even the road surface that the tank needs to pass along the way, will not be able to withstand it.

In World War II, Germany came up with the rat tank, which sounds very strong, but it needs constant sappers along the way, and in fact, it no longer has the mobility that a tank should have.

At the same time, the continuous improvement and improvement of various other anti-armor technologies have made simply increasing the thickness of the armor useless.

Therefore, it is necessary to find new ways of armor protection.

The first technology to be used was naturally composite armor, which was built with a sandwich structure and armor of different materials added and stacked layer by layer, which played the effect that one plus one is greater than two.

And this explosive reactive armor, in fact, has been there for a long time.

Soviet experts who first proposed the concept of "reactive armor" began to try it in 1949, but they gave up research because they failed several times.

Among them, the biggest problem is the blunt explosive.

At this time, the blunt explosive in the explosive reactive armor, that is, the inert explosive, is detonated, and the shock wave generated by the explosion and the fragments produced by the reactive armor deck will interfere with and destroy these anti-tank ammunition, thereby reducing its ability to penetrate the armor, so as to protect the occupants in the vehicle.

For example, if an RPG comes over, it relies on a metal jet, and the metal jet wants to drill into it, and at this time, the explosive jet generated by the explosive armor will cancel out the effect of the metal jet.

As for the armor-piercing projectile, after coming, this armor block, although not enough to blow it up, can at least make it change the direction of flight, and even fly out of the surface of the tank like a water.

If you look at the tanks of later generations, many tanks will be covered with bricks on the surface, which is explosive reactive armor, which exists as an additional layer of protection for tank armor and improves the protection effect of the tank.

However, it also has other challenges, for example, on the battlefield, bullets do not have long eyes, and bullets flying everywhere can also hit this reactive armor block.

At this time, if this reactive armor block is detonated by bullets or shrapnel, it will lose its effect, after all, this thing is disposable, after being on the battlefield once, where it is broken, it can be replaced, but on the battlefield, just a charge up, the machine gun of the human family has exploded its own reactive armor block, then it will lose its effect.

Therefore, it needs to be detonated when armor-piercing shells, armor-piercing shells and other shells come, and at the same time, when other ammunition, bullets, and shell fragments come, they cannot be detonated, and they have to be selectively exploded.

The Soviets gave up because they could not find a suitable formula.

However, others persevered, for example, Israel, a country that has been at war since its founding, and one of their central assumptions is to put people first, because they can't fight the crowd tactics, and every soldier's life is precious.

Therefore, all kinds of Israeli weapons exist to protect people, and, to the extreme, take Israel's main battle tank, for example, to put the engine in front.

This is simply the only one in the world, why put the engine in front? At critical times, the engine is also used as armor, so that the tanker can better protect the tanker, and the reactive armor, a means that can increase armor protection, they have naturally carried out continuous research, improved the design, and even applied it to their own tanks.

They put these reactive armor blocks on their old tanks, adding protection.

"Explosive reactive armor, which can have a sandwich biscuit-like structure." Qin Zhenhua began to introduce it, this structure, in fact, was first proposed by the Germans, the structure is not a problem, and there is no need to keep it secret, just like the British said that their Chobham armor is ceramic armor, so what, who can imitate it? Anything that is placed in front of you cannot be imitated.

"The outermost part is a steel panel, from which is the inert explosive layer, the inert material layer, and the part closest to the main armor is another steel back plate, which together form a large loaf of bread." At this time, Qin Zhenhua didn't have a slideshow ready, so as he spoke, he picked up the book next to him and demonstrated: "In this way, when it is hit by anti-armor ammunition, the inert explosives inside will be detonated." The shock wave generated by the explosion and the fragments generated by the reactive armor deck can interfere with and destroy these anti-tank munitions, thereby reducing their ability to penetrate the armor and thus protect the occupants of the vehicle. ”

It is precisely because of the different anti-armor capabilities that when it comes to the protection of the tank, it is absolutely not simply about how thick its steel plate is, but how thick its equivalent protection capacity is, and in terms of equivalent protection capabilities, it is also divided into different equivalent protection capabilities for armor-piercing and armor-piercing shells.

The mechanism is different, and the final effect is different.

"This explosive reactive armor has many advantages, and of course there are disadvantages, so we need to consider the application comprehensively, and now, I will introduce to you the advantages and disadvantages of this armor."

The crowd listened earnestly.

Although all of you here are experts, but everyone is studying in different fields, it can be said that so far, no one has studied explosive reactive armor, even if there are experts in armor present, the main research is composite armor, after all, we have not seen what kind of actual combat effect explosive reactive armor has, it has not attracted much attention.