Chen Fang was with the ordnance supervisor at this time.

"Are the raw materials for gunpowder ready?"

"Everything that the horse master ordered has been prepared! They were all ground into fine powder according to the instructions of the horse master. ”

"Hmm!"

Black powder is configured in different proportions, and its power is very different, and Datang can also make black powder at this time, but its ratio is only suitable for firecrackers and fireworks, and it is obviously not enough to be used for destruction. Used as a propellant for artillery, it is also barely.

Chen Fang was preparing black powder, and the ordnance supervisor had already brought the prepared projectiles.

This is a hollow bomb, as long as it is loaded with black powder and a fuse, it will directly turn into a bomb in seconds.

Uh, no, it's a shell, the principle is the same, no matter how advanced the shell is in later generations, the basic principle is nothing more than the replacement of the lead, the shape of the shell changes, and the charge inside changes.

However, the most basic cannot be changed, the fuse, the charge, the shell, this is the most basic structure of a shell.

Because all the ingredients are prepared in advance, it doesn't take much effort to make them at this time.

Wu Meiniang didn't wait long in the stands, but she saw more than a dozen craftsmen from the Ordnance Supervisor working together to push a swarthy cannon to the small school field.

At this time, all the civil and military ministers around Wu Meiniang looked at the cannon that was pushed, and they seemed a little unclear So, the newly made things made by the ordnance supervisor had not been seen before, and they saw it for the first time at this time, and they were quite fresh, and they didn't know how effective this newly made weapon was.

The artillery was in place, and Chen Fang and the ordnance supervisor had already brought two craftsmen over, a wooden box was carried by several craftsmen, and the shells were in the box.

This gun had a recharged-type design, so the bolt door was opened from the breech.

When the bolt door is opened, the shells and powder packets are placed in turn, and the bolt door is closed, leaving only the lead of the powder pack still outside.

Chen Fang looked at the lead, when did the boosted gunpowder bag and the cannonball be integrated, and then changed the way of igniting the gunpowder from the arquebus ignition method to the firing type. Just like a flint gun, the power of this gun will be greatly increased.

Of course, if the shells could also be changed to impact detonation, the effect would be perfect. It is basically the prototype of modern artillery.

Of course, at this time, Chen Fang did not lack knowledge reserves, and Liu Naihe's notes were a treasure trove, and Chen Fang spent a lot of effort studying and writing them down.

In fact, what is lacking is time and Datang's industrial base.

This one is not in a hurry, you have to take your time.

The bolt door closes, and there is a clang.

The eyes of Zhong Wenwu and Wu Meiniang were all staring at this place at this time, and at this time, the people of the ordnance supervisor had already set up a target in the distance, and the target was a live target, specifically a few pigs arranged in the distance.

Chen Fang remembered that the live target used in the Northern Han Dynasty to test the power of artillery was a slave, and Chen Fang couldn't do this thing of using people as targets.

Everything was ready, Chen Fang took the fire fold handed over by the ordnance supervisor, and the fire fold ignited the lead of the artillery powder pack, at this time, with the spread of faint gunsmoke, Chen Fang had already withdrawn several zhang distance, and then blocked the ear hole with his finger. The surrounding ordnance supervisors also blocked their ear holes.

With a roar of earth-shattering ghosts and gods, as the heavy steel-cast cannon retreated dozens of centimeters under the action of strong recoil, with a ball of fire from the muzzle of the cannon and the rapidly diffusing gunsmoke, there was another loud bang in the distance.

A ball of fire exploded in the air, and dozens of broken irregular metal fragments were at the moment of the explosion of gunpowder, and under the strong impetus of the conversion of chemical energy into kinetic energy, they drew traces of extreme speed in the air, and then, there was no more.

A few pigs swished and jumped alive, arching over the hard ground of the schoolyard.

"Ahh Mother, ministers, it exploded in advance just now! Let's try again. ”

Chen Fang grabbed his hair and smiled embarrassedly.

However, the power of this early explosion of the cannonball has already stunned the full audience.

A few sharp-eyed generals had already seen that on the side of the school field, a wooden pillar was broken from the upper two-thirds, which was caused by the powerful kinetic energy released by the fragments of the cannonball moving at high speed and hitting the wooden pillar.

It can easily blow up an adult's thigh-thick wooden pillar in an instant, and the power of this cannonball is already amazing.

The civil and military forces couldn't sit still, especially the generals among them, who were speechless for a while.

And Chen Fang indifferently modified the length of the lead of the shell, and the lead was used as a delay, and it was normal that he did not grasp the time and distance well in the first test.

Chen Fang quickly went through the approximate relationship between the distance of the school yard and the burning speed of the lead in his mind, and lengthened the lead a little.

It seems that it is necessary to study how to make the shell detonate on impact first, and it is too troublesome to use the lead delay.

With the same roar, this time the cannonball exploded three meters above several pigs, and the powerful chemical energy released in an instant was converted into the kinetic energy of the cannonball fragments, releasing a metallic rain in the sky above several pigs.

As the rumble of the shell explosion dissipated, there was only the wailing of a pig.

Zhongwenwu couldn't sit still at this time, and even Wu Meiniang ignored the bloody and tragic scene over there and walked there.

Chen Fang hurriedly trotted over and held Wu Meiniang with his hand.

Several generals were the first to run and were stunned to see several dead pigs lying in a pool of blood, and a domestic pig whose buttocks were still bleeding and whose entire buttocks had been torn.

Chen Fang had also pulled Wu Meiniang over at this time. See the screaming pig. Chen Fang took the fishbone dagger from his waist and stabbed the pig in the neck with a dagger, ending its tragic fate.

"Master Pony, what's this thing called?"

A general looked at Chen Fang, and stars almost appeared in his eyes, and his instant gaze frightened Chen Dafang's chrysanthemum.

I'm really afraid that this eight-foot strong man will run over and give a bear hug and then a bear kiss.

"This is called artillery, what you see is still made urgently, if it is improved, the power will be even greater, the ordinary city gate can't even withstand a cannonball, even if the strong city wall, it will definitely not be able to withstand a salvo. If it is used to kill ordinary soldiers, the cannonball can also be mixed with some steel, which is more powerful. ”

A few generals looked at the horse, and they didn't know what to say at this time, at this time, the power of this artillery had been intuitively displayed in front of several generals.

And listening to the meaning of the horse, this artillery is also divided into types, and the shells used against different targets will be different.

At this time, Wu Meiniang's hand held by Chen Fang had already clenched Chen Fang's hand, and she looked at Chen Fang, with an unspeakable tension and palpitations.

"Queen Mother, this cannon is too powerful, donkey, hurry, use it to bombard the building."

Li Xian said there, and the face of the ordnance supervisor turned green instantly, Your Highness, you are here to bomb the building, aren't you demolishing my ordnance superintendent!

However, Li Xian is the prince of Yan, and he didn't dare to talk nonsense when he killed the ordnance supervisor.