Chapter 145 Director Gao who is an expert (3k)
4DL has to consider the floating performance in the water. The original 4DL solved this problem a few years later. In fact, the overall performance is still good, some In terms of performance, it is better than the aluminum alloy box M113 from Citi. This is not said by people in China, but by people from Kangaroo Country who have obtained 4DL after testing.
However, at this time, many 4DL problems have not yet been solved.
Hearing this, the leader of the Defense Working Committee became even more angry and slapped the table: "Playing the piano randomly, I think you are the weird suona players who can't play the gongs and drums."
"Ah, comrades on the metallurgical front I tried my best to provide you with better armor steel, but you blame others? I think you just rely on luck in design. If the design conditions change slightly, you will not be able to keep up with the situation. .”
"It's not the center of gravity that's unstable! It's your foundation!! You call it a weak foundation and the earth is shaking!"
Maybe you know that the reason you are looking for is a bit outrageous, and you are responsible for 4DL armor transportation Comrade Che was so angry at the leader that he was speechless.
The correspondent led by the Defense Working Committee heard what was going on outside and stood up. It was time for him to come forward.
He walked in with a thermos and added a little water to the cup that the leader had never drank from.
He also added some water to the cup of the person in charge of 4DL and said softly: "Comrade, please drink water."
Someone interrupted and the atmosphere relaxed.
Pressing his temples, the leader of the Defense Working Committee frowned and asked: "Tell me, how do you want to advance the 4DL issue."
The person in charge of 4DL hesitated for a moment, then He expressed his thoughts: "Leader, let's see if we can hold a meeting and invite relevant experts together. One is to review the design of our existing prototypes, and the other is to see if we can come up with ideas? Let's brainstorm. "
The leader of the National Defense Working Committee thought for a while and nodded in agreement: "This is also a way. You don't want to go back for the time being. Just wait in the capital and prepare the relevant materials. We will arrange an organizational meeting here. "
After the person in charge of 4DL left the office, the leader called the correspondent in and told him to arrange the meeting.
When the correspondent was about to go out, he suddenly remembered something: "Wait a minute, you can see if Comrade Gao Zhendong from the Third Steel Rolling Plant is here. If it is not convenient, if it is convenient, invite him to the meeting. He has such a If you think about it, there may not be any armored transport vehicles. If you send him a shadow paper shell, it will be effective, haha."
The correspondent wrote down the leader's request, turned around and went out to contact the person.
Someone from the factory office found Gao Zhendong and asked him to contact the National Defense Work Committee.
Gao Zhendong doesn’t know what the National Defense Work Committee is looking for him to do. Recently, the tank department seems to have nothing to do with him.
When he got through the phone number of the leading correspondent of the National Defense Working Committee, the other party just told him that the next morning, he would go to the meeting room of the National Defense Working Committee for a meeting. The specific matter was not explained on the phone.
That seemed to be something related to weapons. This was originally the job of the National Defense Work Committee, and he didn't explain it on the phone. Apart from this aspect, Gao Zhendong couldn't think of anything else.
The next morning, Gao Zhendong finally arrived at the agreed meeting room after many rounds of inquiries.
Signing in the meeting roster, the correspondent led by the National Defense Work Committee had never seen Gao Zhendong. He only knew that this person existed, but did not know his appearance and age. Although he heard the other party's voice on the phone was very young, But I just thought it was because the voice quality on the phone was not good or it was natural.
When I saw Gao Zhendong walking into the conference room, I thought he was a staff member of some research unit.
Unexpectedly, this person who looked more like a student went straight to the seat marked with the nameplate "Gao Zhendong" and sat down. He was still complaining about this Comrade Gao Zhendong. If he didn't come to the meeting, he would be fine. That's all, but he sent a young man over.
A very young man sitting in the front row with a name tag still attracted a lot of attention, especially at this time, this kind of situation is rare.
The correspondent led by the Defense Working Committee stepped forward and asked quietly: "Who are you?"
Gao Zhendong knew that his appearance could easily be misunderstood, so he didn't care and pointed with a smile. Pointing to the name tag in front of him: "I am Gao Zhendong."
The correspondent murmured secretly. Unexpectedly, people cannot be judged by appearance, and sea water cannot be measured. This person who looks young is really It's Gao Zhendong himself.
Smile and nod with the people sitting on both sides, and then everyone waits for the meeting to start.
Not long after, everyone arrived, and the leader of the National Defense Working Committee also arrived. He looked around the venue, and when he saw Gao Zhendong, although he knew Gao Zhendong's age and was mentally prepared, when he saw him with his own eyes, he was still taken aback. Gao Zhendong was surprised by his youth.
As the meeting began, the 4DL designers began to report on the entire design situation.
The design of this armored vehicle began in 1958, and the first prototype was manufactured in 1959. Then many problems were discovered, so it was overturned and started again.
It has been improving since the second half of 1959, and new prototypes are also manufactured according to the new plan.
As the 4DL designers reported, the problems of 4DL began to appear one by one. Not to mention, there were quite a few. After all, this was the first time to independently design an armored personnel carrier. When the report was over, the leader of the National Defense Working Committee looked at everyone and said with a smile: "We invite you here today to find and solve problems. Everyone can speak freely and we will solve each problem one by one."
The most difficult problems have been laid out one by one. The new prototype has solved the old prototype's major problems such as insufficient reserve buoyancy and the forward center of gravity, which makes it basically ready for use.
It’s funny to talk about the old prototype car. Due to the insufficient reserve buoyancy, additional floating equipment has to be temporarily installed when floating. This makes the floating function basically meaningless in actual combat.
But in order to solve the problem of the center of gravity of the vehicle, the new model of the car placed the front engine in the middle and turned it into a mid-engine. It is like all the members are warming up around an engine. In addition, the huge noise of the engine makes it difficult to Speaking of humanization, even normal combat is very difficult.
At the same time, because the pre-selected gearbox and transmission mechanism were really bad and had low reliability, the design team had to change the original gearbox to a clutch-type gearbox. However, the steel plate clutch brought even greater consequences. The noise made the situation worse.
Other problems include the relatively small space, limited crew shooting holes, and lack of observation windows. Each one seems small, but if you put them together, it won't work.
As for the change of focus raised with the leaders of the National Defense Work Committee, it does exist. With the emergence of better rolled armor steel, if you want to achieve the originally expected bulletproof capability, you can use thinner steel plates, but the transmission, The weight of components such as the engine will not change, which does bring about a change in the vehicle's center of gravity.
With everyone's active speech and active discussion, many problems were solved at the meeting. For example, engine noise was reduced by changing the exhaust gas exhaust device, and the heat dissipation problem was solved by installing more ventilation. Oral solution.
Although the methods do not seem to be advanced, it is a good method if it can solve the problem. Solve the usability problem first.
When it comes to the noise problem of the steel plate of the steel plate clutch, others are stuck for a while. The steel plate clutch is originally a downgraded product. When I replace it, I don’t know what to replace. As for reducing the noise of the steel sheets, everyone suddenly couldn't think of a way.
At this time, the leader of the National Defense Work Committee said: "Director Gao Zhendong, you are in the steel industry, please tell me your opinion."
Gao Zhendong is trying to recall the 4DL-related information he saw on the Internet in his previous life. When he heard the leader's words, he subconsciously replied: "Oh, this is easy to do. Just replace the friction surface of the all-steel clutch plate with asbestos and copper wire."
This was the original solution. This statement As soon as it came out, everyone's eyes lit up.
"Well, this comrade suggested that this method seems to work. Asbestos increases friction, and copper wire increases strength and heat dissipation."
"Asbestos is soft, and there should be no friction with steel. The film is noisy.”
"Yes, yes, and this method is not only used here, but can be used on other equipment using steel plate clutches."
"As expected of someone sitting in the expert seat, he can solve problems casually."
“.”
The comrades responsible for the 4DL design quickly wrote down Gao Zhendong’s opinion. The leader of the National Defense Working Committee was very satisfied with the situation and called him over. It was indeed true.
The meeting continues, the car body space is a bit small? It's easy to handle, just lengthen the body of the car, and you don't have to pull it too much.
Soon, everyone's discussion came to the issue of the change of the center of gravity of the car. For this, there are actually some thorny issues. The structure of the new prototype car has been determined, as well as the engine, speed change, transmission, and running gear.
Now, because of the new armor steel, the weight of the car body has changed. It is really difficult to adjust this change.
Looking at Gao Zhendong, who seemed to be out of his mind, the leader of the Defense Working Committee once again ordered: "Director Zhendong, please tell me your thoughts on this issue. After all, you are the one who made this steel, and you are the most qualified." I’m qualified to speak, but you were also responsible for this disaster, haha.”
As soon as these words came out, the 4DL staff felt ashamed and felt guilty about killing people.
The people present realized that the young man sitting here turned out to be a giant Buddha. Most of the people present knew something about the properties of 592 rolled armor steel.
These days, anyone who can come up with new materials with such performance will be worshiped wherever they go.
Hearing this, Gao Zhendong thought for a while and then asked a seemingly silly question: "Why does the focus have to change?"
The people in 4DL were a little funny when they heard this question. , the thickness of the steel plate has changed.
But no one dares to laugh. I don’t know what they are thinking in their heads. What if their problem is really deep.
The person who designed the car body of 4DL stood up and replied: "Director Gao, the new armor steel you made has very good performance and meets the original design specifications. It does not need to be as thick as the original designed steel. After the steel plate is thinned, The weight distribution changes.”
Gao Zhendong asked the second question: "Why should it be thinned?"
(End of this chapter)