With the support of the head of armaments, Bai Yi has no worries at all, but it is also difficult to completely let go, after all, the relevant report drafted by the chief of armaments himself still needs to be reviewed by the central government.

So the head of armaments could only detain a few T-34\85 tanks that needed maintenance in the name of logistics maintenance, and let Bai Yi try to modify them without damaging the tanks.

Although Bai Yi was helpless, he also knew that this was the best condition that the current chief of armaments could give, so he devoted himself to the modification project of the T-34\85 tank.

Its first task is to develop a tank gun smoker, for which Bai Yi has no problem in theory, but the key difficulty is that he has people and equipment at hand.

However, fortunately, at this time, Song Jixue, secretary of the party committee of the Baiyun Factory, led Chen Yaoyang and a large number of technical backbones of the Baiyun Factory to the DPRK to inspect the operation of the train's air defense artillery system on the spot, so that the problems exposed in the use of troops and actual combat could be solved and improved after returning home.

So Bai Yi directly found Song Jixue and told him what the head of armaments meant, Song Jixue naturally understood what this meant for the future Chinese tank and armored vehicles, and immediately left a group of technical backbones with Bai Yi, and at the same time immediately sent an urgent telegram to Baiyun Factory, asking to be sure to cooperate with Bai Yi.

With the backing of Baiyun Factory, Bai Yi's confidence is even stronger.

However, just when Bai Yi was thinking about how to coordinate the equipment located in North Korea with the Baiyun Factory in China, the head of armaments gave him another booster!

It turned out that the Soviet Union had built a tank repair plant at the beginning of independence, but after the outbreak of the Korean War, the plant was destroyed by the US air raids.

However, after nearly a year of bloody fighting, the northern part of Korea was stabilized, and North Korea, eager to recover its economy, once again applied to the Soviet Union, hoping that Big Brother could help them rebuild the destroyed tank maintenance chief.

The Soviet Union was extremely generous in this regard, not only acceding to the request of the DPRK, but also, in order to save time, directly relocated a tank repair plant in the Far East of the Soviet Union to Chenan-ri, north of Pyongyang.

Just a few days ago, this tank repair plant was officially inaugurated, and after learning of the situation, the chief of armaments immediately contacted the DPRK side, and after several negotiations, the DPRK side finally agreed that the logistics department of the Chinese People's Volunteers could use the machinery and equipment of the repair shop to repair and maintain its own tanks.

Bai Yi was ecstatic about this, because in this way, the equipment he urgently needed was solved, and since he had talents and equipment, the development of tank gun smokers was officially put on the agenda.

In fact, it is not difficult to talk about the basic principle of the smoke extraction device of the tank gun, which is nothing more than putting a closed hollow hoop on the tank gun as a gas tank.

The part of the body tube that is covered will be turned into several oblique holes in the direction of the muzzle, and when the shell passes through these oblique holes, the high-pressure gunpowder gas will be poured into the outside gas tank to "store".

When the shell flies out of the muzzle, the pressure in the chamber is instantly reduced, which is the high-pressure gas in the gas tank will be sprayed in the direction of the muzzle, according to the principle of fluid mechanics, at this time there will be negative pressure behind the air flow, thus forming a forward pumping effect.

I have to say that this kind of device is both simple and exquisite, and the effect is even more first-class, otherwise this device would not have been regarded as a standard equipment from the second generation of tanks and became a necessity for every tank.

It's just that the tank smoking device is simple and simple, but it is not easy to make all the mustaches and tails, especially in the several oblique process holes on the barrel, which will affect the airtightness of the gun if it is bigger, and it is especially ineffective if it is small, so the best theoretical value can only be calculated according to the caliber of the specific tank gun, the amount of charge, the initial velocity of the projectile and the corresponding exhaust gas concentration, so as to determine the range, size and number of oblique process holes on the barrel.

However, it is not enough to determine some values, and the difficulty of processing is definitely better than that of complex theoretical calculations.

You must know that the steel used to make tank guns has high indicators in terms of hardness and toughness, so if you want to drill a few holes in this hard and tough gun steel, it itself puts forward high requirements for machining; What's more, if this kind of slash process hole is not played well, it will not only affect the strength of the barrel of the gun, but also make the airtightness poor, resulting in the scrapping of the entire tank gun.

Because of this, accurate and efficient drilling has become the key to the success or failure of tank gun smokers!

If it is someone else, in the face of such a seemingly simple but complex technical problem, there is no way out for a year and a half, not to mention anything else, the theoretical calculation of the light slash process hole is enough for the average person to count three or five months.

After all, in his previous life, tank maintenance was a key discipline of his military equipment college, and as the most important weapon of the tank, the tank gun was one of the key points in the tank maintenance project.

Therefore, the various disciplines involved in it have been with Bai Yi from the moment he stepped into the gate of that academy, and not only that, but in order to increase students' understanding of all aspects of tanks, the school often prevents students from going to the tank production workshop for internships.

Bai Yi was sent to the tank factory because of this, and was fortunate to become a member of the tank gun production workshop, and worked for more than two months in the production of tank guns.

Among them, there are two top skills: the rapid solution of the slash process hole of the tank smoker, the mathematical model formula, and the fine processing of the slash of the ordinary drilling machine.

Because of this, what seems to others to be very difficult is a mathematical model formula in Bai Yi's hands, and then he can set a position and make a hole in his mind.

If it weren't for the fact that Bai Yi deliberately slowed down the progress in order to take care of the technical backbones of the Baiyun Factory who followed him, so that those technical backbones could have time to practice and digest and absorb, Bai Yi would have completed the modification of the smoker of the T-34\85 tank at an even more astonishing speed!

However, even if Bai Yi has dragged the progress to the point that even he is a little impatient, in the eyes of others, Bai Yi's efficiency is also amazing.

Not to mention others, Major Zakharov standing in front of him at this time was one of them, when he determined that Bai Yi was the inventor of the tank gun smoker from Zhang Huangxin's mouth, Major Zakharov looked solemn, and then gave Bai Yi a thumbs up with admiration: "This comrade, your tank gun smoker is really an eye-opener for me, and I really sincerely admire you for being able to create such an exquisite device in such a short time!" ”

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