The research and development of rocket launchers quickly got on track.
The rocket launcher itself is not difficult, it is just a guide rail and does not need to consider the chamber pressure...
This is somewhat different from the rocket launcher. When the rocket pops out of the chamber, the rocket launcher relies on the principle of a recoilless rifle to eject it. During this process, the rocket launcher needs to withstand a certain chamber pressure and the barrel wall must be made thicker.
The rocket launcher flies entirely on its own power, so there is no need for chamber pressure.
Mao Xiong even used "I"-shaped steel at the beginning... Two rockets were hung on each "I"-shaped steel, one on top and one on the bottom.
Although the use of "I"-shaped steel saves costs, the shortcomings are also obvious. It is not conducive to the maneuverability of the rocket launcher. A dozen rockets weighing tens of kilograms are hung. If there is a slight bump, the rocket will fall off the guide rail and cause an accident.
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Therefore, "I"-shaped steel was quickly replaced by cylindrical launch tubes.
Wang Xuexin is basically designed after the Type 63 107mm rocket launcher:
The 12 launch tubes are arranged in three layers, four on each layer.
It is fixed with a gun mount and equipped with high and low wheels and direction wheels that can be used to adjust height and direction.
Just add two wheels for maneuvering underneath and you're done.
The entire structure is unimaginably simple and looks like a farm tool.
The difficulty is still the shells.
The main problem is that the round-nosed bullets handmade by the Eighth Route Army cannot guarantee uniformity and center of gravity, so the rocket is likely to move irregularly or even fly upside down after being launched.
This is a big problem. If one or two rockets fly back, it will be enough to blow the entire rocket launcher into the sky.
On the other hand, if every artillery shell moves irregularly, the dispersion range is too large and it will not be able to form effective fire coverage on the target... It is true that fire coverage does not require high accuracy for rockets, but it does not mean that it can vary by a hundred thousand.
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For this reason, Zhang Wanhe transferred Su Xin and Hardware, who were busy at the bullet production line, back to have a meeting.
The meeting location is still Zhang Wanhe's office.
Now Zhang Wanhe finally used the kang, which Wang Xuexin asked Chen Fujun to build.
Chen Fujun was surprised when he heard about this: "What? There is no kang in the factory director's house?"
Wang Xuexin explained: "No, it was because fires were not allowed near the arsenal before. Now that the arsenal has been moved, we haven't had time to do it, so it has been delayed!"
Chen Fujun replied with some embarrassment: "You blame me for everything! As a company commander, he only cares about safety issues all day long. The factory director doesn't even know when he's not on the kang!"
As he spoke, Chen Fujun patted his chest and agreed: "No problem, I'll take care of this! I promise to let the factory director sleep on the hot bed tonight!"
After that, Chen Fujun called for a plasterer from the village to build the kang and light a fire while Zhang Wanhe was still busy in the factory.
Zhang Wanhe couldn't help but be stunned when he came back, and then smiled happily.
He first tested the kang head with his hands, and then sat on it carefully, feeling a sense of warmth arise spontaneously.
Zhang Wanhe was stunned for a while, and there were some tears in his eyes before he knew it. After a long time, he let out a long sigh.
Zhang Wanhe felt a little emotional and thought of his son who died on the battlefield.
If he were still here, he would do the same thing!
Just as he was thinking about it, there were several knocks on the door. Zhang Wanhe quickly wiped his tears and sniffed before getting up and opening the door.
It was several directors who came, and Wang Xuexin was among them.
As soon as Hardware entered the door, he said "Yo": "Director, it's time to get on the kang!"
Zhang Wanhe responded: "Isn't it? Thanks to Xiao Dongbei, it was so fast and it was done in the blink of an eye. When I came back, I thought I had gone to the wrong house!"
Everyone laughed.
Su Xin glanced at Wang Xuexin secretly and thought to herself, isn't this someone who cares about people? Why...
Thinking about it, I couldn't help but sigh.
After chatting and joking for a while, Zhang Wanhe asked Su Xin and Wujin: "Have you heard about the need for new equipment?"
"I heard about it!" Wu Jin nodded excitedly: "Good guy, a cannon that can fire more than a dozen rockets in one breath, is this really possible?"
"Isn't it done yet?" Zhang Wanhe replied, and as he spoke, he explained the difficulties of the cannonball.
Hardware listened and replied: "Director, isn't this simple? Just put a tail fin on the rocket like a rocket launcher!"
Zhang Wanhe raised his eyebrows and said: "You can think of it and we can't think of it? It's because this method doesn't work that I called you back to discuss it!"
"It doesn't work?" Hardware was a little surprised: "Why doesn't it work?"
Su Xin continued: "Because the rocket launcher's rocket is small in size, light in weight, and has a low initial velocity, it only needs a smaller tail to stabilize the rocket. And the rocket launcher's rocket..."
The hardware made it clear with an "oh" sound.
The rocket of the rocket launcher weighs thirty-seven kilograms. If it relies on tail fins for stability, it would take about four tail fins larger than a palm to achieve it.
But such a large tail fin simply cannot fit into the launch tube.
This may be the reason why Mao Xiong used "I"-beam steel as the guide rail in the first place... Using "I"-beam steel, there is no problem of stuffing the tail fin into the launch tube.
"In addition..." Zhang Wanhe added: "Using a tail fin will inevitably have shortcomings such as large wind deflection and difficulty in production. It is not only high cost but also affects accuracy. Isn't that thankless? So we should think about it.
Is the rear wing possible?”
Su Xin said: "It would be great if rifling could be engraved in the launch tube to make the rocket rotate!"
To solve the problem of stable flight of artillery shells, except for the tail fin, it is rotated.
But Su Xin is just talking. Of course, you cannot carve rifling into the launch tube to make it rotate. The more likely result of doing so is that the rocket gets stuck in the launch tube and then makes a "boom" sound...
However, the speaker was unintentional and the listener was interested. Wang Xuexin was so impressed by Su Xin that he excitedly said: "Yes, spin! Why don't we make the rocket rotate?"
Su Xin asked angrily: "Comrade Wang Xuexin, the problem is how to make it spin! This can neither be equipped with tail fins nor rifled..."
"We don't necessarily have to use these two methods to make it spin!" Wang Xuexin replied: "We can use gunpowder!"
"Gunpowder?" Su Xin looked puzzled.
"Yes, gunpowder!" Wang Xuexin explained: "We can change the tail nozzle and add a few symmetrical holes around it. They are at a certain angle to the horizontal line, so that it can rotate on its own during advancement?"
Wu Jin couldn't help being stunned when he heard it, and asked: "Is this possible?"
"I guess it can work!" Su Xin looked at Wang Xuexin with a shocked face, nodded and said: "The key point is that the angles of the nozzles must be consistent, otherwise the accuracy will also be affected, which will increase the difficulty of processing!"
"It's certainly more difficult to hit accurately!" Zhang Wanhe said, "Try it and see if you can do it!"