Jing Wen looked at the hundreds of catties of steel ingots that had been made, and began to prepare to make cannons. First of all, Jingwen wants to make zuò, which is a relatively mature and much simpler cannon. As long as there is steel, isn't it casual to make these artillery?

"My lord, what are you asking us to do this? Can something so thin withstand the power you say? The official of the Ordnance Superintendent asked.

But Jingwen replied: "Whatever I want you to do, you can do it for me, don't talk so much nonsense." If it is done, then our Datang army will be extremely powerful, and no city wall will be able to stop the attack of our Datang army. When the time comes, no city can stop it. As soon as this thing explodes, the walls will fall. ”

"What's so powerful?" The official of the Ordnance Superintendent asked in disbelief.

The first thing Jingwen had to do was the Flying Thunder Cannon, which was a powerful and lightweight artillery. In later generations, some film and television dramas have mentioned a kind of army-made cannon, that is, using gasoline barrels to launch explosive packets, which can be said to be very powerful. This kind of artillery was made by the revolutionary army from local materials and gave full play to its various advantages. However, the disadvantage of this flying thunder cannon is that it has a short range and a slow rate of fire. However, this also depends on the era, for later generations, the short range and slow rate of fire are a big problem, but for the people of this era, it is not the same thing at all. And this kind of flying thunder cannon, blowing up the city wall is not a problem at all.

When an iron drum with a caliber of about 300 mm was built, the production of zuò shells began. The cannonball first uses some gunpowder, and then makes it into a disc state, and after pressing it, it can be formed, and the most important part of this flying thunder cannon is the part of the propellant. Black powder cannot also be used for propellant, because if black powder is used, it will detonate the packet. And this propellant should be made of millet gunpowder, which in the current era can only be used as a propellant.

This propellant is different from an explosion, which explodes in an instant. Then shoot the cannonballs. These shells are generally used as artillery shells with solid iron shells, but are not suitable for firing as ordinary gunpowder packs. If ordinary gunpowder is used as the launch, I am afraid that it will cause the powder bag to explode in the barrel of the cannon, and then injure one's own people. The propellant burns relatively slowly, and the combustion process is not so violent, so his firing principle is actually to push out the "cannonball" through guò gas, rather than through a momentary explosion and shoot out. This can avoid the explosion of gunpowder under high pressure, after all, ordinary gunpowder is unstable. It is easy to explode under pressure.

The medicine bag was also made, and Jingwen tried to put it into the launch canister. And behind it is the lead, which is launched when the time comes, and then the guò lead is passed and then the explosion is caused, so that the enemy wall is blown up. Inside the barrel was other gunpowder, that is, millet gunpowder, which was used to produce a thrust to push the bag out and ignite the gunpowder fuse.

"Everyone, get out of the way, don't go near this canister. If it blows up, it will be miserable. So, don't get close, I'm afraid everyone will be unlucky if it blows up! Jingwen said.

Jingwen deliberately asked the craftsman to make this lead very long. And after igniting it, it can be enough to make the person who lit the fire leave quickly, so as to avoid hurting his own people after exploding. According to this flying thunder cannon with a caliber of more than 300 millimeters, I am afraid that it will have to dodge at least a few hundred meters to avoid being harmed, so it is necessary to make the lead longer.

"Your Excellency. I'm going to light the fire! The official from the Arms Superintendent said.

"Well, come on! Wait a minute, once the fire is lit, give me a quick run. The farther you run, the better. We're looking through a crystal telescope here, so we can see the power of the explosion. Jingwen said.

"Next wipe!"

As soon as the gunpowder fuse was ignited, the officer of the armory superintendent left the spot. And this lead was enough for him to run a distance of hundreds of meters, all to avoid the danger of exploding. Actually, Jingwen already knew that I was afraid that this cannon might not be so smooth this time.

"Boom!"

A small mushroom cloud rose, and the thunderbolt exploded in place, apparently not being fired, or as the saying goes, exploding. And Jingwen's guess is not wrong, this time it should be a bomb, I'm afraid Jingwen also knows that it is not so smooth.

"Huhuhu......"

"Why is there such a big wind, is there any wind to win today?" The official of the Ordnance Supervisor asked.

"Stupid, which explosion is this, just like the missile wave!" Jingwen said.

"This wave of qi is really big!" The ordnance supervisor immediately exclaimed.

The caliber of ordinary missiles is not that large, but the caliber of this flying thunder cannon is more than 300 millimeters, which is twice as large as ordinary large missiles. Therefore, the air wave is not comparable to those missiles, so this air wave is extremely powerful, even if it is three or four hundred meters, it can be felt.

Jingwen led the officials of the Ordnance Supervision to the place where the cannon barrel exploded, and then the craftsman checked the cannon barrel.

"My lord, this time it should be that the propellant was not mastered well, so there was too much propellant, which caused this explosion. Next time, we're going to cut back on some of the projectiles, and then we should be able to do it. The craftsman said.

"Okay, let's reduce some of the propellants, and we must try to figure out the amount of propellants, how much propellant can be fired without causing an explosion. In this way we can get the longest range, and you should not be afraid of danger, as long as we control it well, there will be no danger. Of course, you still have to ensure your own safety, you are all rare gunpowder technicians in my Datang, but you are the treasure of my Datang. If anything happens to you, I'm afraid it will be worse than the loss of 100,000 troops! Jingwen said.

And those gunpowder technicians trained by Jingwen were also moved, because Jingwen was able to regard them so important, of course they were moved. Jingwen not only gave them good treatment, but their wages were much higher than those of ordinary craftsmen, and they could even reach the salary level of middle and low-level officials. And in this kind of situation where the standard of living is sufficient and can gain enough respect, of course, they have to repay Jingwen hard and develop more gunpowder weapons. (To be continued......)