In later generations, the 96 tank went to participate in the competition, but Lao Maozi played slippery, and did not let the school gun participate in the competition, Lao Maozi was calibrated in advance, but the 96 tank did not, as a result, the 96 shells missed the target one by one, and Lao Maozi could just declare to the outside world, see it, the 96 tank was not accurate!

In order to sell their own tanks, they are indeed ruthless enough.

And now, the other party is also doing the school gun as a lofty step, deliberately showing it in front of everyone, letting them know that advanced equipment needs to be calibrated by advanced professionals before it can be used.

This professional school gun is divided into ten steps!

"Hardware check!" The first step begins.

Someone got inside the turret and opened his eyes to check that a gun weighed several tons, and it was held in place by pillars and trunnions. If there is some small wear and tear here, it will affect the accuracy of the artillery, after all, the slightest mistake is obvious here.

Keep your eyes open and check it out!

"Start pressurizing!"

Tens of tons of turrets, it is impossible to use manual hand cranking, everything depends on the hydraulic system of the tank, and at this time, the tanker, who has completed the inspection, sitting in the position of the gun commander, began to turn the fire control handle.

The turret of the tank, with the operation of the tanker, began to turn, and while the turret was turning, the barrel was still turning up and down, and in this way, under the gaze of everyone, it turned twice.

When the turret is turned around, you can see the proportions occupied by the huge turret.

The 85 tank is also a welded turret, but the size of the turret is not large, it is very small, compared to the Western tanks, they are all large turrets, and the internal space is therefore quite spacious, as for which is better, it depends on the preferences of the army.

Now rotating, that's because these are driven by hydraulics, in the process of rotating, even if the hydraulic system has undergone a preheating, the turret rotates, the main gun moves up and down, and the hydraulic oil inside begins to move, so that even if the hydraulic oil is pressurized, in particular, the bubbles that may exist in the hydraulic oil will disappear in the activity.

"Detect zero drift."

The passwords were shouted one by one, and Derek's face was proud, he glanced at Qin Zhenhua, and then said: "Zero drift, this is an important aspect of the morning error, but the previous fire control system can't adjust these at all." Mr. Qin, do you know what zero drift is? ”

I've already started to take the test.

At this time, almost everyone present didn't understand, which is too complicated, right?

"Drift is a concept in circuits." Qin Zhenhua said: "There is an error in the operation of the electronic signal, which is called drift, just like we use a loudspeaker, the sound out of the pitch is changed, because the signal has drifted, but if you talk about the school gun, the bubbles inside the hydraulic system can also be counted as a factor of drift." ”

Crisp and neat, the explanation is quite correct, and it is easy to understand, Mahmoud nodded: "So that's what happened!" ”

Derek also felt a little disappointed that he didn't take the test to teach Qin Zhenhua, and at this time, Qin Zhenhua asked again: "Your school cannon is so complex and professional, then, after such a school cannon, it should be quite accurate, right?" ”

"Of course." Derek said: "Only this most professional school gun can guarantee accurate shooting of artillery. ”

After speaking, he glanced at Qin Zhenhua again, as if to say, your fire control system is too simple, now let you see the professional.

He didn't notice that an imperceptible smile appeared on Qin Zhenhua's face, hmph, wait a while, you can't be sure, don't say that there is no calibration, you have such a big battle now that you calibrate, but you can't find this reason anymore.

Qin Zhenhua stood under the tree, looking at the tank that happened to be in the shade of another big tree, if you can calibrate, then hell.

After all, the US military is stationed all over the world, and they are very experienced in how to do things in the tropics, but the technicians from these factories are different, maybe they think they are the most skilled, but they lack practical experience.

Adjusting the drift is easy, and there are two correction knobs on the main sight plate, "parallel" and "vertical". Just twist these two knobs and watch the output.

It was quickly passed, these steps, all of which other tanks did not have, and now, it has been checked that there are no cracks in the artillery pillars, the hydraulics have been warmed up, the "drift" has reached zero, and the tanker held down the button on the fire control handle.

At this time, it is fully automatic, the turret will rotate back and forth, and the computer control panel will constantly display a step-by-step self-test, almost like the start of the computer.

Soon, this step was also completed. The old data inside the computer was cleared, replaced with various basic data here, and finally, the preparation of the school gun was completed.

That's right, having done so much, it's just the preparation for the calibration of the artillery, and in this era, most of the school gun operations, omitting all the previous operations, start directly from the next step.

At this point, the big guy understood, and saw a technician stuff a device into the muzzle of the gun, and then, putting his eyes on it, shouted loudly: "Ahead, on the hillside, that telephone pole next to a house!" ”

On the hillside? On the hillside over there, the distance is already more than two thousand and a half, right? Even the other party's school artillery chooses such a distant target as the standard, so how far can this kind of artillery hit?

It seems that 2,000 meters is a good one!

Even if the 105 mm gun is replaced, the combat distance is limited to about 1,000 meters due to the use of a light point injection fire control system.

The other party was pretending to be forced there, Qin Zhenhua sneered in his heart, the more awesome you are pretending to be now, the more stupid you will have to be. Two thousand five hundred meters? A target at a distance of 1,000 meters, you are afraid that you will have to miss the target.

This step is something that many people will do, from the Second World War to the present, this special "muzzle boresight correction device" is used.

Insert this device, abbreviated as MBD, into the muzzle, then place your eyes on the eyepiece and work with the gunner to correct the main gun with gestures and passwords. It can be said that it is the core of the correction of the main gun.

In fact, it is very simple to say, insert it into the muzzle, make sure that the muzzle is aimed at that target, and then, the gun commander inside the tank, locks on to the same target with the sight, so that the sight and the tank gun are coaxial.

However, the advancement of the M1 tank lies in this, the people are automated, after manual calibration, let go of the target, and then lock the target in the sight, and the reticle in the fire control system can automatically press on the target again.

It's a pity that you can't see it from the outside, so everything has to be introduced by Derek, and this automated operation is also quite high.