Chapter 648: There are many tricks to play
"Hey, Chief Engineer Gao's suggestion is good. Confirming the impact point every time is a big project and extremely inefficient."
"Why didn't you think of it before?"
"I didn't know this existed before, and even if I knew, you wouldn't be able to coordinate it."
"Apply as soon as you get back. This can improve a lot of efficiency and save a lot of money."
"..."
For scientific research projects, even if the direct money is not saved, as long as the time is solved, there is no telling how much money is saved.
However, they might be very happy about this kind of thing in normal times, but compared to what Gao Zhendong was talking about, it was obviously the icing on the cake, so after being happy for a while, Fu and Shao immediately shifted their focus back.
There is no shop like this in this village. If I don’t try my best to buy some dry goods now, I won’t even know whether I can see them next time. It's not that they don't want to see him, but judging from this trend, it might not be easy for him to see him.
"General Engineer Gao, what is the other suggestion and outlook you just mentioned?"
Gao Zhendong nodded: "Ah, yes, I haven't finished yet."
As he spoke, he added something to the bottom of the date core bomb.
"I suggest you develop a new standard bullet type, a bottom-vented extended-range bullet."
The bottom row of ammunition only appeared in the mid-1960s. There is no such thing now, so this concept directly makes the artillery commanders unable to deal with it. It is really incompetent.
"Bottom exhaust extended range bomb?" They looked at each other and said in unison, really not knowing what it was.
Gao Zhendong continued to draw out the details: "Design a pit at the bottom of the cannonball and install an exhaust device inside. The gas will be continuously discharged during the flight of the cannonball, which can increase the range of the cannonball."
A comrade who worked on artillery shells laughed out loud: "Wouldn't this be a rocket launcher? If so, just make a rocket launcher."
Although Fu and Shao were puzzled, they did not speak. They did not believe that Chief Engineer Gao could not understand such a simple thing.
Gao Zhendong wasn't angry either. They really didn't understand this thing. To a certain extent, their knowledge of the aerodynamics of artillery shells was limited.
He explained with a smile: "This is different from rockets, and the principle is different. Rockets are completely driven by the continuous injection of gunpowder gas from the rocket engine, but I think you should be clear about where the power of barrel artillery comes from. ?”
"The work comes from the expansion of the propellant when it explodes."
"That's right, but have you ever thought about the resistance that cannonballs will encounter when they fly in the air?"
"Air resistance!"
"But the composition of air resistance, what exactly constitutes this air resistance, and how it is affected, have you considered it?"
"No..." The comrade who was engaged in artillery answered here, and suddenly got stuck. Hey, this thing sounds simple, but I really can't answer it.
It's like everyone knows that eating can make you full, but why can you feel full by eating but not by eating dirt? Not everyone can explain this clearly.
Seeing Gao Zhendong looking at a group of comrades with smiles and silence, Mr. Fu also knew that they couldn't answer this matter because it was too detailed.
"Chief Engineer Gao, what problem does this bottom exhaust extended range bomb solve?"
Gao Zhendong drew a few strokes on the bullet tail on the picture: "When the artillery shell travels at high speed, the bottom of the shell will not have time to replenish air, forming a low-pressure area. Intuitively, this low-pressure area will increase the pressure difference between the front and rear of the projectile. Increase resistance, so..."
Mr. Fu suddenly came back to his senses: "Ah, I understand! This exhaust is not to push the projectile forward, but is just to fill the low-pressure area at the bottom of the projectile with gas and try to balance the pressure difference between the front and rear of the projectile?"< br>
Mr. Shao also understood: "Yes, yes, this is a great idea! We still don't have enough theoretical research. This method seems very simple, but without a deep foundation in aerodynamics and fluid mechanics, it cannot be proposed. And If it is just to supplement the low-pressure area of the projectile, this exhaust device does not need to be too large, the size and weight are not large, and it will not have a big impact on the power of the projectile.”
Absolute, absolutely amazing!
The comrade who just said that he had built a rocket was flushed and he was impulsive.
The brains of these big guys are different from ordinary people. Their theories and angles of thinking are very different from common sense. It is not that they cannot refute and question, and they probably don't care, but they have to be thick-skinned, otherwise they will easily doubt their life.
Mr. Shao is now deeply grateful for his behavior of "skipping the class". What they are talking about is really not just for 122, but can be used for medium and large caliber artillery shells. Gao Zhendong smiled and said: "However, the bottom row of bombs is not without flaws. As long as it is exhausted, it will generate force. The shells rotate and precess forward in the air. This small force will also have a certain impact on the accuracy of the shells. But in summary , this method of extending the range is still very cost-effective. I have estimated that if it is designed properly, it will be no problem to increase the range by about 10%, which is comparable to the date nuclear bomb.”
10%? This is amazing. There are still about 10% of jujube nuclear bombs? Make money, make money!
Mr. Shao has already calculated in his mind. Unlike Mr. Fu, his cannon cannot be modified in a short time. Imitation is imitation, unlike Fu who always makes new cannons.
But the shells can still be modified. The jujube core bombs and bottom row bombs, not to mention too many, can reach the 20 kilometers mark without any problem!
Although 20km is not much more than 17.4km, people who often buy things know that 9 yuan, 9 yuan and 10 yuan, 10 yuan is really too expensive!
As for Chief Engineer Gao's two 10% claims, are you bragging? That's impossible. I'm not sure how I could come up with such data.
As for Mr. Shao, let alone Gao Zhendong's set of combos used on the new cannon. Hehe, Lao Shao, let me see how you still show off your caliber in front of me every day!
But it seems that Lao Shao's modification of the bomb can also have good results. Forget it, let him give it a try.
The two of them were thinking about it in their hearts, but Gao Zhendong didn't stop.
"As for the prospect I mentioned, it is aimed at the small flaws of the bottom row bomb."
Can the defects of the bottom row of bombs be solved? The two of them stopped thinking about the future and focused on the present first.
"Can the shortcomings of bottom row bombs be solved? Then why not go directly to the final plan?" A comrade was puzzled.
As for Fu and Shao, the two chief gunners couldn't ask this question. It wasn't that they couldn't think of it, but that they thought more.
Why? It must be that the price to be paid to solve this defect is relatively high. Compared with the upper and lower bomb discharge at the current stage, the cost of other technologies is not worth it.
As expected, Gao Zhendong smiled: "Well, the final plan also has a price to pay. Under the current environment, the bottom volley bomb is the optimal solution. If there is a flaw in the bottom volley bomb, it is the accuracy. It has a slight impact, but the range extension effect is not the best. Just solve these two problems.”
In fact, to put it conversely, bottom row bombs are a solution that better combines range extension, accuracy, and cost. This is the charm of the dialectical approach to looking at the problem. It depends on which angle you look at it and what angle you interpret it from.
Dongjinghuaxia is a very good self-media name.
The news in China, uh... let’s not talk about it.
"That's why it's called Zhanwang. I'll give you the path first. As for how to choose, you can choose according to your actual needs. In other words, when the resources are sufficient, you can want them all, haha." Gao Zhendong said to Zhanzhan. Summary.
"Yes, yes, yes, what Chief Engineer Gao said makes sense, so how to solve these two problems?" Yes, yes, you are right, then you should hurry up and look forward to it. You are tired of waiting.
Gao Zhendong drew another picture on the blackboard, which was much simpler than the base bomb: "One is to make a bottom concave bomb, which uses the depression at the bottom of the projectile and the aerodynamic structural design to retain or ensure rapid replenishment of air. Reduce the pressure difference. The advantage of this method is that the accuracy is better, but the disadvantage is that the design is more difficult than the bottom row bomb, and the requirements for aerodynamics or fluid mechanics are relatively high. The range extension effect is probably not as good as the bottom row bomb. .”
The reason why we don’t take out the bottom concave bullet first, which seems to be a simple and convenient design, is the trouble. The bottom concave bullet passively replenishes air. Unlike the bottom volute bullet, the gas source is in your own hands, so for the fluid Mechanics has much higher requirements, and it is a typical example of simple results but difficult processes.
"This thing looks simpler than bottom bombs!" A 152 researcher was happy. This thing is easy to work on, so we might as well just do this.
Mr. Shao glanced at him: "Haha, you think too simply. This thing is much more difficult to deal with than the bottom row!"
He and Fu always fully understood what Gao Zhendong meant. This thing is fine as a prospect, but if you want to get on the horse immediately, it is indeed not as good as the bottom row.
This made them admire Gao Zhendong greatly. Not to mention so many new technologies, he could accurately grasp what was most suitable and what technology looked easy but was actually not suitable to use right away.
This requires not only profound theory, but also rich practical experience, and a thorough understanding of the environment.
Looking at Gao Zhendong's age, haha... Forget it, some people exist just to break the rules.
"As for the extended range, haha, a comrade just said it well. We can really consider making rocket extended range ammunition. The extended range effect is good, but it has a greater impact on the power of the projectile. It may not be suitable to use it as the main ammunition. , it’s good to make specialized ammunition.” Gao Zhendong casually made up for the comrade who first questioned the bottom volley of ammunition, and the comrade’s consideration still made sense.
Fu and Shao were very happy. With these suggestions and prospects of Chief Engineer Gao, the problem of projectiles was basically solved. On the basis of comprehensively surpassing the original ordinary projectiles, various types of projectiles should be integrated There is synthesis, there is range, there is range, there is precision.
If this happens every time there is a meeting, they will be tempted to squat in the Defense Work Committee every day and never leave.
(End of chapter)