The difficulty of moving against static is very great.

The tank gun on this side, a slight bump, brought a slight vibration of the muzzle, when the gun was ejected, it only slightly changed a small direction angle, and after going out, it was completely crooked.

And in the march of the tank, the bump is always there, and if this bump cannot be eliminated, then it can only be fired in a stationary state.

If you want to maintain the stability of the muzzle in the bumps of the hull, you need a two-way stabilization platform.

That is to say, the tank gun is independent of the hull, no matter how the hull changes, the tank gun can remain stable, for the tank that can only maneuver on the ground, as long as it is enough to ensure stability in the direction and pitch, this is called a bi-stability system.

It is common to see videos of some advanced Western tanks, the hull is rushing, constantly jolting, but the muzzle is as steady as Mount Tai and does not move at all, or, the tank hull turns in place, but the muzzle is always aimed at the target. Even put a goblet on the muzzle of the gun, and it can stay steadily.

It looks mysterious, in fact, the principle is not difficult, it is equipped with a series of electronic equipment, when the tank is bumpy, the gyroscope can quickly perceive the attitude change of the tank, and then through the sensor to turn this change into a signal to the computer, calculate the amount of compensation, compensation direction and compensation angle, and then through the servo system of the turret for motion compensation, in this way, the body of the car moves, the internal system is constantly compensated, and the muzzle can be kept always aimed at the target.

Only then will it be possible to fire in motion, because then it will be no different from firing at rest.

The West has long been proficient in this set, not only the Chivoltan tank, but even its previous model, the Centurion tank, already has a perfect dual-stable platform.

It's just that there is no such technology in China, until now, all domestic tanks can only stop and shoot, 59 tanks, there is no bistable platform, only a stable elevation, 69 tanks say that there is a bistable platform, but, hehe...

Of course, the dual-stable platform is only a premise, with the dual-stable platform, it only means that the muzzle will not change with the bump of the tank, and if you want to hit the target, you need a complete set of advanced fire control equipment.

When the primitive optical sighting system was still used in China, Chivoltan already had an advanced fire control system of this era, which included four subsystems: data control subsystem, including Marconi 12-12P digital computer, commander control and monitoring device and shooting handle; sighting subsystems, including tank laser sights and sighting electronics; The sensor subsystem includes sensors installed on the tank such as wind speed, wind direction, air temperature, air pressure, gun trunnion tilt, scope angle, charge temperature, gun chamber wear, target movement angular velocity, etc.; Electronic processing equipment subsystems.

How advanced is its fire control system? After each fire, there will be a wear and tear in the chamber, and even this error can be taken into account, so the accuracy of this fire control system is quite high.

According to the British assumption, they planned to kill the enemy at a long distance, with this 55 times the caliber of the 120 mm tank gun, even at a distance of 4,000 meters, on the contrary, the Soviet tanks, it is estimated that they have to rush to within a thousand meters in order to have a chance to destroy the British tanks.

However, only long-distance tank guns are not enough, and they must have a supporting fire control system, so their Chivoltan, fire control system is also quite good, in the actual target, the stationary target within 3,000 meters, and the moving target within 2,000 meters have high accuracy.

And just now, in Chivoltan, several people were seriously preparing, Wang Erzhu took out the trainer bullet and stuffed it into the barrel, while Qin Zhenhua used the commander's sight to indicate a fixed target three thousand meters away, and Li Changjiang took aim seriously, binding all kinds of data, until finally stepping on the trigger.

"Boom!" With the roar of the tank guns, several people held their breath for a moment.

Driving a tank, it looks majestic, but in fact it is very hard, especially, once the gun is fired, black smoke rises from the outside of the muzzle, in fact, inside the tank turret, and the outside is almost the same, a puff of black smoke will permeate the entire turret, and it will take a while before it will be sucked away by the fan in the turret.

They are all experienced.

But now, when they held their breath, they found that the black smoke that had filled the turret was almost the same as nothing! At the moment of firing, the smoke extractor in the middle of the barrel has been smoked clean!

"That's what a tank is called." Finding that there was no smoke of gunpowder, Li Changjiang couldn't help but sigh and say, although the roar of the engine behind it was still coming, but, compared with the domestic 59 tank, the noise was much smaller, and it was still possible to communicate.

If you have driven a Western tank, you will definitely hate the backward ergonomics of your own tank, which is very comfortable and convenient, and it is of great benefit to improve the combat effectiveness of tankers!

"Zhenhua, shall we go back now?" Zhang Xiangyang, who was in front, sent a question through the intercom in the car.

Now, the car is flying and the cannon is fired, so it's time to go back, right?

"If there's still a lot of oil, let's take a round again, and it won't cost you money anyway." Qin Zhenhua said very happily.

For this time, everyone practiced for a long time, in the maintenance workshop, found some cardboard, marked out the internal equipment of the various types of tanks that they were about to touch, practiced hard, and just after getting on the car, they began to get used to it, so now, it is reasonable to have such an effect.

"I don't know if I hit it." Wang Erzhu muttered: "That's a target at a distance of three thousand meters." ”

The maneuverability has already been tested, and the accuracy of this artillery fire is not yet known, after all, the own side has never fired at a target at a distance of three thousand meters.

In other words, the laser rangefinder is really easy to use! Directly displayed to the meter, it should be 3,150 meters, so far, if you can hit, then the luck is too good, right?

"It should be no problem, their tank was originally meant to be shown to us." Qin Zhenhua said: "It must have been calibrated in advance, and I dare not say that the accuracy of the second shot will not be low." ”

"What if we make a mistake?"

"Why are you so unconfident? If you can't hit, it must be because their equipment is not good, our operation, it is absolutely first-class! Qin Zhenhua said categorically, at this time, as the body of the tank was still bumping, Qin Zhenhua opened the hatch above his head, revealing half of his body, which is called a pulling wind, eating ash pulling wind.