During this period of time, I was giving advice and fighting the Japanese. In the end, I almost lost my life. I finally managed to collect more than two million military coins. Now it's two million?
If this comes easily, then it will be spent. But this is earned by licking blood on the edge of a knife and paying for it with one's life. Can you be willing to give it up?
After hesitating for a moment, Wang Xuexin decided to ask Su Xin first. If he had a way to solve the problem of the 92 Infantry Cannon, wouldn't he save these two million military coins?
Thinking about it, Wang Xuexin asked Su Xin: "Classmate Xiao Su, you said...what are the difficulties in building this 'ghost cannon'?"
"One is rifling!" Su Xin replied without thinking: "Our arsenal is not ready to engrave rifling, so we have to..."
After saying this, Su Xin stopped talking.
Wang Xuexin understood why she kept her mouth shut. The Eighth Route Army also had a more advanced arsenal, the one that could manufacture Type 55 rifles.
This is not a military secret that everyone can know.
But Wang Xuexin really knows about the Huangyadong Arsenal!
Wang Xuexin didn't ask any more questions, just nodded and said: "This is indeed a big problem, and the rifling is very time-consuming!"
Su Xin couldn't help but said "Hey": "You also know that rifling takes time?"
Then Su Xin remembered that Xiao Dongbei had stayed in the Japanese Arsenal before, so of course he knew about rifling.
Wang Xuexin said casually: "I don't know much, but I know a little!"
Su Xin continued: "There is also the problem of the short lifespan of iron cannonballs mentioned by the factory director. I don't think this problem is big. There is a bigger problem that the factory director did not expect!"
Wang Xuexin asked curiously: "What's the problem?"
"The quality of our steel is not good!" Su Xin shook her head and said with a helpless smile: "Even if we have toughening technology, we can only solve the problem of steel for cannonballs. This kind of steel can barely make the barrel of the 50 small gun, but
For a 70mm caliber gun like the 'Ghost Cannon', if the barrel is made of toughened steel, it will easily explode. Therefore, even if the gun is built, its lifespan will be much lower than expected. There is no point in making it!"
Su Xin is right. The 50-gun cannon only requires a small shell to be fired five hundred meters away, so the pressure on the barrel must be small.
However, the 92 Infantry Artillery requires a 3.8 kilogram shell to be fired more than 2,000 meters, which is beyond what the toughened steel can withstand.
After that, Su Xin added: "So I don't even think about these issues, it's simply impossible!"
Wang Xuexin summarized that there are three difficulties: rifling, lifespan, and barrel.
How to solve it?
Reduced performance?
Reducing performance may solve the problem of rifling, but you can eliminate rifling!
But the gun body is made of steel... Wang Xuexin felt helpless, there was no way he could solve this problem.
Why can the system solve it?
Is there another toughening technology?
Or a steelmaking technology that improves steel quality?
After thinking for a while, he still had no answer. In desperation, Wang Xuexin could only spend the two million military coins.
But the answer he got almost made Wang Xuexin faint.
There is no technology or drawings at all, just a few simple words: "Train axle!"
You fucking tricked me!
Are these few words worth two million?
This is not just a thousand words!
Even if this method works, it doesn't require two million military coins, right?
Wang Xuexin coughed a few times, and he was almost injured internally by the system.
Su Xin thought she had choked Wang Xuexin because she fed him too quickly, so she hurriedly patted Wang Xuexin on the back.
"It's okay, it's okay." Wang Xuexin regained his breath and said, "Classmate Xiao Su, I have some ideas about this 'ghost cannon'. Please listen to it and see if it can work."
Su Xin laughed: "If you can really make this artillery piece, it will be a great achievement!"
Su Xin didn't believe that Wang Xuexin could do anything.
This cannot be solved by hearing or seeing the Japanese, especially the steel problem.
But it’s okay now anyway, so it doesn’t matter if I listen to it.
Wang Xuexin sorted out his thoughts and said: "As for rifling, the idea is still the same as that of the 50-year-old cannon. If the Japanese have rifled guns, we will fix the cannons without rifling! Anyway, it is to hit the Japanese turrets, and the range only needs to exceed the Japanese machine gun."
One thousand meters, if we can’t reach it, we’ll lengthen the length!”
Su Xin nodded and said: "That makes sense, I've thought of this too!"
Su Xin did think about this.
Just kidding! I have experience in imitating 50 cannons before. If I can’t think of this now, how can I be called a talented student?
Wang Xuexin continued: "If this cannon had no rifling, there would be no problem of shortening the service life of iron shells by grinding rifling. It's just that the accuracy is a little worse, but we only require it to hit within one thousand meters, so a little accuracy is acceptable.
of!"
Su Xin agreed: "Abolition of rifling can also greatly reduce production difficulty and shorten production cycle. It can be said that it kills several birds with one stone."
Su Xin fed Wang Xuexin another mouthful and said, "But what about the steel problem? Classmate Xiao Wang, this is the key point!"
"What kind of problem is this?" Wang Xuexin replied nonchalantly: "Isn't it already available?"
"Is it ready?" Su Xin looked at Wang Xuexin doubtfully, then touched Wang Xuexin's head and said, "You don't have a fever, why are you talking nonsense?"
Wang Xuexin replied while chewing the meat: "We don't necessarily have to ask for 70MM caliber. Look at how thick the train axle is. That thing has to carry a load of things and run on the railway, and
It also requires that it not deform over many years, so the quality of this steel must pass the standard!”
Su Xin's expression gradually changed, and then she looked at Wang Xuexin with wide eyes and said, "You mean... to steal train axles from the Japanese... and use them to make gun barrels?"
"Yes, yes, that's what it means!" Wang Xuexin asked: "Do you think it can be done?"
"I'm not sure!" Su Xin was surprised and happy: "But we can try. If it works...then, that would be great! No, I have to report it to the factory director!"
As he said that, he put the bowl on the table and turned around to leave.
"Hey..." Wang Xuexin looked at Su Xin's back and muttered: "Why are you so anxious? Can't you just leave after feeding me?"
After saying "Alas", he sighed, calmly took his right hand out of the bandage hanging around his neck, took the lean meat porridge and ate it with relish.
If Su Xin saw this scene, she would definitely yell: "Wang Xuexin, you didn't tell me when your hand was healed, and you still wanted me to feed it for so many days!"
"You can't blame me!" Wang Xuexin murmured to himself: "You didn't ask, right? Why should we do it ourselves when we can just lie down and be waited on by others?"