Chapter 121 A contradictory story (3k)
On one side is the defender headed by Mr. Guan, and on the other side is the attacker headed by Mr. He. The person observing and judging the pros and cons is the model chief engineer of 5DL. , Mr. Luo, but he does not always follow the experiment. After all, this experiment will take many days, so he has no time.
Seriously conducting experiments is not as simple as firing two shots to see if they penetrate.
For example, if you want to cut the bullet hole profile and observe the penetration, it cannot be done in a short time.
The test array was very large, with more than one type of cannon, shells, and armor.
There are original cannons from the north, but these can only fire original bullets. Use domestic imitation old bullets, which are meaningless. Use new bullets, which can't be fired.
There are two types of self-produced cannons. One is an old imitation rifled 100-mm cannon that fires old-fashioned sabot-piercing projectiles.
The other one is the new 105 smoothbore cannon. Because the self-tightening of the barrel can achieve better chamber pressure performance under the same weight, it is better to do it without stopping. The caliber has increased by 5mm, and there are correspondingly more propellants.
However, this thing is a trial production. There are only two doors, one for use and one for backup. The parameters have not yet been adjusted to the optimal level.
This gun fires the new large aspect ratio fin-stabilized discarding sabot armor-piercing projectile.
A total of two types of tail-stabilized discarding sabot armor-piercing projectiles have been trial-produced, one with a tungsten carbide head and the other with a pure steel head.
As for the armor, Mr. Guan took out the composite armor, explosive reactive armor, and traditional homogeneous steel armor that were being applied for finalization. Anyway, he was just playing with Lao He.
The experiment has been going on for several days, and people are getting excited step by step as the experiment progresses.
There is a door to this path!
Mr. He has been feeling aggrieved for so long and finally got a little angry, but he’s not done yet.
At the testing site, all the tests have finally been completed, and Mr. Luo, Mr. Guan, and Mr. He are discussing with the full set of test data.
There was a lot of data, and the three of them spent a lot of time comparing and communicating.
In fact, we can wait for the experimenters to complete the comparative analysis of the data before doing this, but they can't wait any longer.
The data is boring, but they find it extremely wonderful when they look at it.
The first thing they looked at was the data of homogeneous steel armor. This thing is the most intuitive and the penetration depth is clear at a glance. It is the most standard power data for armor penetration ability testing.
While looking at the data, Mr. Luo communicated with He and Guan: "This old-fashioned bullet is really not good. The weakness of the positive effect is too obvious. Whether it is Beibianer's original version or our imitation, it is OK to hit vertical armor, but it is OK to hit inclined armor." The effect is greatly reduced."
Guan and He nodded while looking at it. This is also a common problem with armor-piercing shells. Due to the large diameter, the weakness of the positive effect is obvious, and it is used when hitting high-angle armor. When the time comes, the power drops so much that the vertical penetration and oblique penetration cannot be simply converted using trigonometric functions.
When he saw the wing stabilizer take off, Mr. Luo was happy: "This type of bullet is okay. With the same tungsten carbide armor-piercing body, the penetration depth of 1,000 meters is almost 1.7 times that of the original armor-piercing bullet from the north, and it is correct. The effect is much better. "
The name of the fin-stabilized armor-piercing discarding sabot is too long. The Prairie Tractor Factory simply calls it "wing-stabilized discarding sabot", and the English abbreviation of APFSDS does not exist now.
Mr. Guan smiled and said: "Well, this is a good type of ammunition, and the gun itself also provides a lot of help."
Mr. He had something to say: "I think there is more potential. Firstly, the new steelmaking process is still being developed in Beijing, using old gun steel. Secondly, this is a start-up, and many parameters are still under study, so it is not the optimal solution. "
Mr. Guan laughed at him: "Let's see what you can do."
Mr. He didn't take the credit: "It's not me, it's Comrade Gao Zhendong. I'm the blacksmith."
At this time, Mr. Luo turned over the data on the steel-core wing stabilization and laughed happily.
Guan and He didn't understand why he was so happy suddenly. When they stretched their heads and took a look, they couldn't understand even more. The penetration depth of this bullet was better than that of the old bullet, but it was limited.
Mr. He also teased Mr. Luo: "Mr. Luo, what are you laughing at? Although the penetration depth of this steel core wing stable detachment bullet is better than that of the original old bullet, it is only a little more than 10% higher than the penetration depth of tungsten carbide. "Compared, it doesn't make much sense."
Mr. Luo is the chief model engineer. The things he has to consider are a little different from those of Mr. He and Mr. Guan, the two subsystem leaders who pursue perfection.
He shook his head: "Old He, you are wrong about this. This is of great significance. Do you know what this means?"
Old He also shook his head: "I don't know. , you know what you said.”
“This means that we can get more firepower at a cheaper price than existing tanks using expensive tungsten carbide armor-piercing body. What’s wrong with 10%? %, I think it's pretty good. Besides, you said it still has potential. Only then did He and Guan realize that the chief engineer is the chief engineer and they have many more things to consider than themselves.
Mr. Luo patted the data record of the steel core wing's stable detachment and sighed: "You must know that tungsten carbide is much more expensive than steel core bullets. We can develop two types of bullets at one time, one is more expensive, and the other is more expensive. But the effect is very good, the other effect is also good, but very cheap.”
How about the story of Mr. Luo, the advanced version and the monkey version? He already figured it out.
But there is no other way. He is poor, and he is very satisfied with being able to get more firepower than what he currently has at a low price.
Mr. Luo, who got the good news in the first test, looked through the subsequent records with great interest.
"Lao Guan, these two new armors of yours are fine. The old 100 line, whether it's the original version from the north or our imitation, whether it's a standard charge or a strong charge, they can all be well defended."
Guan The general smiled and nodded: "It's not mine, it belongs to Comrade Gao Zhendong over there in the capital. I dare not take the first credit for this. However, the protection of these two armors against the firepower of existing mainstream tanks is really nothing to say."
Seeing his cheerful look, Mr. He couldn't help but pour cold water on him: "Let's see if you can get it. Will your blast be penetrated by my new cannon + new bullet?"
Mr. Guan was not angry either. The two had been fighting for several years, and he said with a smile: "You have to rely on luck, and your all-steel wings can be easily removed and worn, but you have no temper against my composite armor."
This is true. When it comes to explosive reactive armor, its weakness is that the wing stabilization and penetration effect is average, so whether it is tungsten carbide or all-steel wing stabilization and penetration, it will cause damage to the main armor behind the explosive reactive armor.
It's just that the all-steel ones have to take a chance, some are effective and some are ineffective.
However, if the tungsten carbide wings are stable and detached, they will basically have the effect, but the effect will be slightly affected.
But the protective effect of the composite armor on the all-steel wings is very good, and it has not penetrated.
As for the tungsten carbide wing's stable detachment and penetration, it only goes back and forth with the composite armor. There is a certain probability of penetration, but this probability is not high.
Mr. Guan’s words made Mr. He very uncomfortable, but when I thought about it, from the last time when I couldn’t do anything to now, I have come and gone. This can be considered a big progress. I still have my cannon and shells. Potential, don’t be afraid.
Thinking of this, Mr. He felt that he could do it again, and said frantically to Mr. Guan: "Old man, don't be complacent. My cannons and shells are not all ready yet. When they are all done, let's see how I deal with you."
Mr. Guan didn't care, and still smiled: "Then wait until you've finished it. Anyway, now, I'd better be a little ahead, hahaha."
Looking at this The two middle-aged children had been fighting since they participated in the tank imitation and improvement work. Mr. Luo smiled and shook his head, ignoring them. He had seen this kind of scene many times, but it was Mr. He who took advantage in the past.
Other research and test personnel around were also suppressing smiles on their faces. This can be regarded as a repertoire of previous armor-plated missile confrontation tests.
Mr. Luo waited for the two of them to have a good fight, and then he greeted: "Okay, okay, you two stop for a while, and we will discuss how to use these new things."
The two men stopped bickering and came closer.
"Let's talk about the armor first. Life-saving matters take priority. Lao Guan, please talk about it first." Mr. Luo said to Mr. Guan.
Mr. Guan thought for a while and made a suggestion: "This is what I think. With the 5DL improvements, if composite armor is to be used as the main armor, the turret process and even the entire design will have to be drastically changed. The cost is a bit high. If external composite armor is installed, the volume and weight of the composite armor will be significantly higher than that of the anti-explosive weapon."
Mr. Luo nodded: "You are right to think about it. The improvement of 5DL should not be carried out in a big way, and the engine power of 5DL is not high. If the weight of the composite armor is increased, the power-to-weight ratio will be ugly and the mobility will be problematic."
Mr. Guan continued: "So my idea is to improve the 5DL and add plug-ins. Explosive reactive armor is mainly used, with simple technology, light weight and low improvement cost. Although it will have a certain impact on the accompanying infantry, it can still be overcome considering that it is mainly arranged in front of the vehicle body. ”
As he spoke, he glanced at Mr. He: "This is fast and cheap, and it doesn't affect the mobility of the tank. As for the protection ability, the main ammunition in the north is completely out of temper. Mr. He's new guns and new ammunition will also be affected. Its impact, combined with the improved performance of the 593 cast armor steel turret provided by the Jingcheng Steel Rolling Plant, should be completely sufficient."
Mr. He was a little depressed by Mr. Guan's glance, but there was nothing to say. Yes, at this stage, he is still weak.
"As for composite armor, it can be used as the main armor of the next generation of tanks. I will think of ways to optimize it by the way. Comrade Gao Zhendong has done enough, and I have to do something myself. ." Mr. Guan concluded.
"Well, you have a good idea. Where are you?" Mr. Luo turned to Mr. Guan.
“I still need to improve this, but I am sure it will be done in a short time. However, the size of the breech of this gun is much larger than that of the old 100 line, and the structural shape is also different. The existing turret does not It's so easy to install. My suggestion is that if the next generation of tanks is launched quickly, then the 5DL modifications simply won't be equipped with this gun. The already produced 5DL cannot be replaced for the time being. Of course, if the next generation of tanks is launched slowly, then the 5DL will be replaced. You can consider this gun for modification.”
First update
(End of this chapter)