Super Weapon Swap System

Under the leadership of Qin Guan, they came to a tank just off the assembly line. You can see that the gun barrel of this tank is obviously longer.

When it comes to the length of the barrel, the professional term is double diameter. How many times the barrel length is the caliber is an important indicator. The longer the barrel, the longer the action time of the propellant. When the high-temperature and high-pressure gas is sprayed from the muzzle, the energy is lost.

Therefore, increasing the length of the gun barrel can increase the speed of the shell. For armor piercing shells, speed is the king. The higher the speed, the higher the penetration depth.

The newly developed tank gun in the Han Dynasty has a caliber of 55 times. If we continue to increase the length of the gun barrel, we will face many problems, such as the small deformation of the gun barrel under the action of gravity, the greater power of the turret rotation, and the inconvenience of long gun barrel in areas such as forests, etc.

Another important fact that date palm countries can accept this scheme is the service life of gun barrel.

The service life of tank guns is not long. If you use the accumulation of time, it is a few seconds, and the number of shells is hundreds.

Tank guns are of high bore pressure. Each firing is a ravage of shells and barrels, as well as the baking of propellant. Therefore, the barrel is prone to mechanical fatigue under this harsh environment. Even in Hans, the most developed metallurgical technology, it is difficult for their tank gun to have a barrel life of more than 500 rounds. As for Xiong Guo, due to backward technology, the barrel life of their tank guns is about half lower. When launching grenades and armor piercing shells, the life is 300 rounds, while the life of armor piercing shells is only 200 rounds.

When the armor piercing projectile is fired, the chamber pressure is the highest and the service life is the lowest. Compared with the service life of thousands of ordinary howitzers, it is absolutely very short.

The time is very short, which can be calculated. For example, the initial velocity is 1800 m / s. according to the uniform acceleration movement, the average speed of the shell in the barrel is about 900 m / s, the length of the barrel is 6 m, and the time of the shell in the barrel is 6 divided by 900 m / s. Multiplied by 500 rounds, the service life of a barrel is only about less than 4 seconds.

Therefore, the tank gun looks majestic. In fact, it completely belongs to the crushing life. Beyond the life, it can be used, but it has to bear the risk of shell blasting. This is still a smooth bore run, and the linear bore gun is even worse. After hundreds of rounds, the rifling in the gun barrel will be ground flat. If you fire again, the accuracy can not be guaranteed.

In these years of high-intensity wars, the 79 tanks equipped in the tank forces of yezao country belong to the elite. Therefore, the frequency of use is very high. In a few years, most of the tank guns have reached their service life. This time, simply take the opportunity of upgrading and upgrade the tank guns at the same time. Naturally, it is a good choice.

It is entirely possible to destroy the target by increasing the barrel length and improving the armor piercing projectile, although the depleted uranium armor piercing projectile is not used.

If you can't destroy it, get closer. After all, the strength of Eagle depleted uranium armor is well known all over the world.

Now, everyone is studying this tank carefully. The 79 tank in yezao country is the strongest ground weapon in yezao country and is equipped by the president's Pro defense forces. Therefore, it is not hesitate to spend money to upgrade.

"What's the mushroom head on this?" compared with their own tanks, we can immediately find some differences in details. In addition to the longer barrel, there are some additional things on the turret, such as the East and West painted black mushroom head.

I knew you would mention it! Qin Guan looked at the device and seriously introduced it: "this equipment is a secret weapon of our tank. Its full name is called laser jamming system. Listen to this name, can you guess what it does?"

Qin Guan knew that ye Zao's ace in air combat was the famous Reyer. However, he was not very clear about some elites of the ground tank forces. He was asking a tank General of Ye Zao. Although he knew his name and position, he didn't know more about him, and he didn't know if he was a famous person.

However, this device, of course, is also a new invention of our own side. If the other party wants, it can provide them with a simplified version.

"Laser jamming system?" the other party listened to the name and began to seriously consider it: "in other words, does it act on the other party's laser rangefinder?"

Laser rangefinder is one of the most important components in modern fire control system.

If you want to hit the target accurately, you must have various data, among which the distance is a key data. Only when you know the distance accurately and within the error of meters, can you hit the target, especially the long-distance accurate shooting, which is even more essential.

In the past, the method of visual inspection was used to see the width of the target on the sight, identify the model, and then calculate to obtain the data, not only the tanks on the ground, but also the aircraft in the sky. The pilot had to carry the wingspan data of various aircraft and be able to calculate mentally. It was really not easy to hit the target.

However, the technology is developing. Soon, a laser rangefinder appeared. It emits a laser beam and then returns. Calculate the time and multiply it by the speed of light to get the distance. This is quite accurate.

On the fighter, this method was used to launch missiles in the early stage. Later, the fighter entered the radar era, and the radar calculated all kinds of data. However, for the tank, this method was retained, and the laser rangefinder was still used to measure the distance. After all, the tank does not need radar.

Then, if you move your hands and feet on this laser ranging and give the other party wrong results, it can interfere with the other party's aiming and make the other party unable to hit the target. This is the function mode of the laser suppression system?

"Yes, technology is constantly developing, and tank troops also need to constantly learn modern scientific and cultural knowledge in order to keep pace with the times." Qin Guan admired the commander: "Your analysis is basically correct. It took us about five years from putting forward the principle to successful development. Now it can be put into use. It can interfere with the other party's laser ranging, so that the other party can't get effective and reliable distance data, so that the other party's fire control system fails. In this way, unless it is within 500 meters, the other party can't accurately measure the distance We attack. "

Within 500 meters? 1000 meters away, you can kill each other. With this weapon, the tank soldiers will have more confidence.