Shenkeng system

Chapter 222
Since you are here to fight, let's think more about the war!Now the thief is hiding in the valley of the evil wind. If he can have some cannons, give him a full-coverage unlimited base bombardment, keep it until his mother doesn't know it...

Too bad there are no cannons!Now if you want to cast cannons, according to Zhao Si's level, at most it is possible to create something like "Shenwei Invincible and Invincible General", which is filled with solid bullets, or you can also create the most primitive flowering bullets, and then slow down. Swallow to hit him with a cannon...

Anyway, being idle is idle, why don't you build two cannons and come out to play?Surrounded without fighting, from Zhao Si's point of view, these people would rather starve to death than surrender, and they may even put themselves to death and survive, bursting out with strong fighting power, choosing several times to break through the encirclement, causing casualties to their own army... …If the cannons are really built, transport a few to the mountain and build a few shooting points. According to the range of the cannons, Evil Wind Valley should be able to achieve full coverage strikes...

When the time comes, just hit it a few shots, and let these thieves finally surrender in hunger and fear...

Of course, the casting of cannons is also a plan for the future. Now the surrounding areas of the Song Dynasty are in danger, and the war between the Song Dynasty and Liao and Jin should break out soon. When there are cannons, whoever comes can be beaten, or You can also drive out to beat people...

Thinking of this, Zhao Si felt that it was necessary, and started casting a batch now to try the effect...

So he tried hard to think about the appearance of "Shenwei Invincible General". He had seen this thing in the military exhibition hall, and he drew a sketch on paper according to his own understanding...

But Fan Zhu didn't know how to make such a large-scale thing. He remembered that during the Opium War, the British method of casting cannons might be borrowed! ... the iron has been smelted through hundreds of smelting.First make a shot with wax, no difference at all, and then seal it with mud and dry it in the shade.When casting, the mold is opened with fire, the wax oil is released, and then the iron is poured into it. After four or five days, the mold is opened and taken out and placed in a wilderness where no one visits.Fill the cannon with gunpowder, light the match with a long heart, and keep everyone away from hiding spots. Once the cannon is fired, it will fly through the air, and it will not break if it falls, so as not to explode, there will be no future troubles.The suitability of the casting method is mostly represented by the rectangle on the leading door, or it is placed on the head or behind the tail, or both the head and the tail are placed, and the degree is also suitable.

This method is called the lost wax method!According to this method, Zhao Si ordered the caravan to get a lot of white wax first, and asked Cao Fu to find a few skilled craftsmen. Under his command, according to the blueprint, he made cannons with wax, paste them with mud and dry them in the shade, and then burn cast iron... …

The first cannon in the world of the Song Dynasty was made by Zhao Si!So, first loaded the gunpowder, stuffed a few solid iron balls into it, and experimented a little...

Fortunately, the quality of the steel they smelted at this time is already quite good, and for the sake of safety, the barrel of the gun is cast very thick, so the bombing did not happen, but it is a bit cumbersome, one may reach four or five Jack...

The specific shape of this gun is that the barrel is very long, the wall of the tube is thick, the caliber is large, the overall shape gradually becomes thicker from the muzzle to the tail of the gun, and there are cylindrical ears on both sides of the center of gravity of the gun body...

Of course, shooting accuracy and range are also very important. As a student of science and engineering, Zhao Si must take these into account!For the time being, Zhao Si named the cannon he cast as "Shenwei Invincible General". In fact, it is hard to say whether his cannon looks like the Shenwei Invincible General in the Kangxi Dynasty.This kind of artillery can adjust the shooting angle and change the range according to the amount of gunpowder.Equipped with front sight and rear sight, the trajectory is calculated according to the parabola, with high accuracy.

The shooting range of the medicine ball really surprised everyone in the Tianwu Army!The shooting range has reached four and a half miles!

Zhao Si is also very pleased about this, which shows that his experiment was a one-time success!So this kind of work was handed over to the craftsmen. Zhao Si told them that when casting, they must use refined steel, and the materials must not be sloppy...

Everyone nodded together and took orders to go!Zhao Si began to study shells again!According to memory, the first cannonballs were solid balls, and only after that came the blooming shells. In fact, it was the kind of thunder that he made in front of him, but he just lengthened the fuse... Finally, Zhao Si made When the slow-burning medicine comes out, use the wood or paper primer of the slow-burning medicine to adjust the burning time according to the firing distance, so that the shell will explode after falling into the enemy's line.In addition, Zhao Si also modified the cannon. Instead of using a matchlock to ignite the cannon, it was ignited with spontaneous firepower, which overcomes the disadvantage of the matchstick being susceptible to moisture.The propellants used are granulated or cake-pressed black powder and maroon powder, which have a slower burning rate and lower chamber pressure than earth-made black powder, which is more beneficial to artillery...

After a series of experiments, he finally produced a cannon with good reliability and high practicability, and handed it over to craftsmen for mass casting.Of course, the wisdom of these skilled craftsmen should not be underestimated. Many detailed problems were discovered and solved by these people!

However, the speed of this kind of casting artillery is limited by the wax, so there is no way to make many of them quickly. They spent a month from research and development to large-scale production, and now they have produced fifty pieces!The hollow cannonball is of course very simple, isn't it a thunderbolt, but the one fired with a cannon is much larger than the one thrown by hand!They produced more than 5000 shells of this kind!Of course, this is done very quickly, but because the amount of gunpowder supplied by the logistics is not very large, so limited by this factor, so little is produced... But it is enough to pull out a dozen!
"Finally, I can pull it out to have fun!" Zhao Si was very excited, and ordered people to find a lot of cattle nearby, put the cannon on the cart, and pull it to the outside of Xiefeng Valley. Of course, there are several places. But it is the terrain of cliffs and cliffs. This kind of terrain can completely use cattle and manpower to pull the cannon to the top of the mountain and hit the bottom of the valley...

"Our reconnaissance team called and said that now they have been digging wild vegetables, hunting, peeling bark, and digging grass roots. It may be that they fled in a hurry, and the food they brought has run out... If they really beat it a few more times, they Maybe he really came out and surrendered!" He Wenyu gave Zhao Si feedback on the investigation situation.

"Because of these thieves, there is no need to labor for me to make such a big thing out. This is all for the future, and now it is just pulled out to try my hand! I think, after a few drops, they will It should have collapsed! Once it collapsed, they will come out and surrender... Oh, yes! Over there, do you have any news from Captain Gao?"

(End of this chapter)