Caliber is truth!

For a cannon, the larger the caliber, the longer the range, this is already nothing to say, at the same time, the larger the caliber, the larger the warhead, the greater the power of the shell, if the 155-mm gun can take out a basketball court, the 203-mm gun, you can take out a football field.

But at the same time, the larger the caliber of the artillery, it means that the greater its weight, the more inconvenient it is to operate, therefore, the large-caliber cannon can only be installed on the warship, after all, only the warship has enough tonnage and space to accommodate the large-caliber cannon, in World War II, the largest caliber naval gun, has exceeded 400 mm, Iowa's 406 mm and Yamato's 460 mm naval guns, are the top existence at that time.

However, on land, for a long time, 155-mm guns have been the main force, after all, at this caliber, they are already very bulky, and 203-mm howitzers are even more bulky, so only the United States and the USSR have such howitzers, and the Eastern powers have never studied them.

This is the first time!

Under the leadership of Xie Huimin, Qin Zhenhua came to the workshop on the side, and the super cannon appeared in front of him.

"Thanks to Dr. Bull." Xie Huimin said: "Dr. Bull not only brought us the technology of the 155mm howitzer, but also brought us the 203mm howitzer program, and we carried out several years of research and development according to the plan he provided, and finally made the first 203mm howitzer." ”

45 times the caliber, it is said that the caliber is not very large, but the caliber is large, multiplied by 203, and the data of the terrible barrel more than nine meters long is obtained.

Such a cannon is definitely a super cannon.

Because the gun body is too heavy, the tires under it also have two rows! The tires are relatively flat, so when towing, they can also have better road performance.

At this time, the barrel of the cannon is flat, eyeing the front, and the gun carriage behind is also more than three meters long, which is to balance the impact force of the cannon when shooting, and make a compromise as a last resort, this kind of cannon must be quite cumbersome to operate.

"This kind of large-caliber cannon uses split shells." Xie Huimin said on the side: "In order to increase the rate of fire, we used a special bomb delivery device next to it. ”

Xie Huimin said while instructing Qin Zhenhua that this ammunition delivery device can ensure that the gun can be loaded from any angle and achieve a maximum rate of fire of 3 rounds per minute, as well as a continuous rate of fire of 1.5 rounds per minute. For such a supercannon, this rate of fire is already quite good.

At the same time, on the other hand, it is also because its shells are too heavy, not to mention the propellant, just the warhead, the bottom concave projectile weighs 95.6 kg and has a maximum range of 40 kilometers, and the bottom row bullet weighs 100.1 kg and has a maximum range of 50 kilometers.

If in terms of range, there is not much difference from its own 155-mm gun, but its warhead weight is several times that of the 155-mm gun.

To put it more simply, after encountering the enemy's artillery fire, your own side will immediately suppress the artillery fire, if it is a 155 mm gun, that is, one cannon will kill one of the opponent's gun positions, but this kind of 203 mm gun will definitely kill the opponent's entire artillery position with one shot!

The one in the near area will be lifted away directly, and the one in the distance will also be shot to death, and there will not be a living mouth, this kind of large-caliber cannon is so terrifying!

Qin Zhenhua nodded: "That's right, it's a good thing to have this bomb delivery device, but I don't think it's enough, this kind of cannon is best made self-propelled." ”

155 mm, can be towed artillery, under Qin Zhenhua's suggestion, a special auxiliary power unit was also added, you can temporarily move your nest, and this kind of 203 mm gun, too huge, want an artillery squad to operate, it is really quite complicated.

Therefore, it is necessary to design it as self-propelled so that it will be convenient for the operation of the army.

Hearing Qin Zhenhua's words, Xie Huimin frowned: "This thing, if you want to make it self-propelled, I'm afraid it's not easy, we don't have this technical reserve, or let's work together?" ”

Just like the 83 self-propelled howitzer in the past, it was the big guys who worked together, and later, the second machine factory was also used to cooperating with the first machine factory, and even attached to the first machine factory.

"We don't have the technical reserves either." Qin Zhenhua said: "However, the Americans have it, if we find a way to get an American M110 over, it would be good." ”

It is different from its own existing self-propelled howitzer, because the cannon is too large, so, this self-propelled howitzer is destined to be naked without a turret, and, it is estimated that when firing, in order to resist recoil, it is not enough to rely on the crawler chassis, but also to have a hydraulic stationing hoe, this thing, their own research and development is too slow, or find a mature product to learn from the best.

If you want to learn from it, of course, it is the American M110.

This is the same 203 mm self-propelled howitzer, using a tracked chassis, five pairs of load-bearing wheels, this self-propelled howitzer because of the older age, so, the performance is not good, the maximum range is less than 30 kilometers, completely inferior to the performance of their own 203 mm howitzer.

Get an American one?

Xie Huimin looked at Qin Zhenhua with excitement, knowing that as long as he thought of something, he could do something, and if he could get it and change it to a self-propelled chassis, it would naturally be better.

"Of course, after we get it, it's just a reference, after all, their chassis, we don't produce it, we borrow technology, we can improve it on our 80-type chassis, or even the 59-type chassis, so as to meet our actual situation." Qin Zhenhua's mind opened up, and he talked more.

It is impossible to produce a chassis specifically because of this howitzer, the chassis of that medium armored vehicle has now been popularized and widely used, but it is not cost-effective to produce one for it alone.

"In addition to the tracked chassis, we can also find the navy, their ships, whether there is a need to carry large-caliber artillery like ours, which can be converted into naval guns."

The navy's naval guns must have better moisture-proof treatment, etc., but the main body is still common, and Qin Zhenhua is racking his brains to find more use occasions for this artillery.

"This year's international defense exhibition can also bring this gun to the international market."