Datang: I am so happy to marry a disfigured princess!

Chapter 228 Artillery Propulsion Plan
After returning home, Lin Heng took the drawing and looked at it carefully from the perspective of three views.

The design of the barrel is very particular. There is not only one barrel. There is a chute on the inner wall of the barrel, which can help the cannonball leave the barrel itself more smoothly.

In order to maintain the vacuum as much as possible, the fuse opening for igniting the gunpowder is also made relatively fine. In this case, even if the pressure is released, the shell will not be ejected so close under the huge pressure impact.

What went wrong...

Lin Heng suddenly remembered a game he played when he was a child in later generations.

Use the holder of a carbon pen to remove the tip and cap, and stuff both ends with toilet paper soaked in water.

In this way, the internal pressure has actually been limited.

Then use a pen refill to stuff one end into it, and then squeeze it continuously to increase the internal pressure. When it reaches a certain level, the other end is suddenly ejected.

A very simple pressure test.

Lin Heng didn't know much about artillery, and it wasn't something that ordinary people could make. But after watching too many videos on popular science on the Internet, the principles were generally clear.

It is still necessary to create an environment with poor pressure.

Ignition of propellant gunpowder actually imitates the dynamic process of pressure change. A sharp increase in pressure in a small space will naturally push the shell out.

Lin Heng suddenly thought of something.

I thought of the inner wall of the cannon barrel. Although it was as smooth as possible, it still seemed a bit rough.

He couldn't help but put his hand on the table and began to rub it quickly.

Perhaps at a slow speed, a slightly rougher desktop will not have any impact, but once the speed is fast, it will become hot and painful, and the feeling of obstruction will be even greater.

But if you use a glass surface, it won't.

Lin Heng's eyes lit up. He had basically mastered the principle. It should be the friction between the cannonball and the cannonball wall itself.

Because a huge explosion will be incredibly powerful, the originally seemingly flat surface will experience great resistance.

Especially when the amount of gunpowder is large, the greater the force, the greater the resistance. The cannonball that is subjected to a violent impact will form a reverse force and explode the chamber.

The reason is found!
As for the solution, it shouldn’t be difficult to find.
With the idea in mind, Lin Heng began to try to think of solutions.

To ensure the vacuum degree and reduce friction, we can only start from the outer wall of the material.

A little lubrication is also a solution.

Seeing Lin Heng busy, Li Ningxi accompanied him. Just like when Lin Heng was thinking about disaster relief strategies before, every time he was so serious, he seemed to have a different face, making people unable to take their eyes away.

For a day, Lin Heng tried to start from the pipe wall. Considering the vacuum, he readjusted the lead opening and used a detachable small and slender pipe. Of course, it is difficult to use iron with today's technology, so he used Disposable wooden tubes or other forms are always intended to facilitate the installation of leads and reduce pressure leakage.

The second is the accumulation pressure space. The explosion of propellant gunpowder occurs in a small space. Lin Heng enlarged this space as much as possible. If an explosion occurs in a suitable closed space, the pressure will rise suddenly, and then it will explode inside the fire chamber. External squeeze, in this case the cannonball will be pushed.

Today's cannonballs are all designed to be round, because circles can be thrown farther in the air and their position is relatively stable.

Therefore, Lin Heng was considering whether to use the diameter of the cannonball as the diameter of the barrel, and then give a one centimeter tolerance. As long as the cannonball is placed well and can be sealed when it lands on the muzzle, the pressure can be increased.

It is actually impossible to completely seal the cannonball with current technology, so Lin Heng came up with the idea of ​​using oil to fill the small gaps in it and make it as airtight as possible.

This idea should be feasible.

Lin Heng then came up with another artillery shell style, which was the later arrow artillery shell. It was streamlined and weighted at the rear to make the shell fly more smoothly. He also drew it and provided ideas for the people below to study.

In short, the idea is there, but whether it can be implemented depends on the results.

The gunpowder workshop is almost Lin Heng's most expensive business, with a monthly expenditure of at least 20 yuan!
But the cutting edge of military technology of the times is right here!

Lin Heng distributed the new drawings and concepts, and they quickly went to study and transform them. They probably saw the feasibility, and they were all enthusiastic.These people are all my treasures and must be kept!

It is estimated that it will take a few days to research this thing, so let them be busy.

It would be great if we could catch up with the army and march out. When this thing is pulled onto the battlefield, it will be in the form of crushing.

"Ning Xi, if it weren't for you, I wouldn't have been able to figure it out so quickly!"

Just find any reason to kiss your daughter-in-law, it’s a pleasure!
Li Ningxi looked confused, she was just watching from the side, what does it have to do with herself?
A few days later at noon, Uncle Wang came to find Lin Heng.

"Xiao Langjun, now that the artillery you designed has been built, everyone wants you to take a look."

Lin Heng nodded, the efficiency of his own workshop was considered acceptable.

Immediately arriving at the testing site, a group of masters responsible for research and design gathered around the artillery to observe.

There are two types of cannonballs, as designed by Lin Heng, one is round and the other is barrel-shaped.

The surface of the round cannonball has been broken and smooth as much as possible, and there is almost no roughness to the touch.

Everyone immediately prepared to load the gun and test it, fill it with gunpowder, and add some items.

After inserting the cannonball, some oil for lubrication was also added according to Lin Heng's requirements.

The lead wire is already three feet long.

Obviously, although everyone is excited, they don't trust whether this thing will explode.
The lead wire is three feet long, but everyone is standing ten feet away.

My wife is here too, so I must pay attention to safety!

Lin Heng ran behind Li Ningxi and covered her ears, resting his chin on her head.

Li Ningxi blushed slightly. There were so many people here, but everyone just glanced at them and immediately pretended not to see them and continued to stare at the test site.

Sure enough, as the outside world said, the relationship between Lin's consort and the princess is not that good!
Such a relationship is invisible even to the common people, let alone the royal family.

And Consort Lin didn't mind showing off his affection in front of them at all.

Everything was ready, and everyone covered their ears.

Lin Heng's eyes also fell on the cannon.

The fuse was lit, and everyone held their breath and concentrated.

The explosion was more than a hundred times louder than that of the matchlock gun.

You must cover your ears for this thing!

An almost perfect parabola was drawn, and after landing, there was a loud bang, eighty feet!

This is the first time that the artillery they studied has shot such a long distance!
Moreover, the crater is huge, and the killing range can be as wide as three feet.

This can be said to be a successful reproduction, not relying on the system, but truly relying on Lin Heng's ideas and the efforts of these craftsmen.

This sense of accomplishment is indescribably great!

"Consort Lin, it's successful!"

"The research is out!"

"."

(End of this chapter)