watched the first shot get off to a good start, and directly hit a bloody alley. Li Yu remembered that when Li Jing talked about the types and uses of artillery shells, he said that the advantage of round shells is that they have secondary or even tertiary trajectory. After that there is also a rolling ballistic. When he listened to the lecture, Li Yu felt that he understood, but now he understands it when he sees it with his own eyes, and he doesn't know the real understanding until now.

On hard ground, such as sand and gravel, hard soil, under the appropriate pitch angle, it is easy to form ricochet. The twenty-four solar terms of Liaodong sing to "the beginning of winter frost all over the ground, the small snow is tightly sealed". "The big cold and the small ice are like iron, ushering in another year". In winter, the land of Liaodong is frozen as hard as steel, and a pickaxe is a white spot. The construction of Li Yu's construction camp was first drilled with steel drills and then blown up with gunpowder.

Before the war, Li Jing took his staff officers and artillery technicians to experiment with a three-pounder gun, a three-pounder gun nicknamed "Huang Ganon" with a 1-degree elevation angle and a range of 358 meters, but the shell actually bounced 15 times in a row, and finally rolled to 1843 yards away. There were also 24-pounder guns, at an elevation angle of 1 degree, the first with a 6-pounder charge had a range of 560 meters, but the continuous rolling of the shells ended up hitting 2027 yards, an increase of almost 300%. However, at 5 degrees, the rolling range increases by only about 40%.

This time it was condescending, with a depression angle of 8 degrees, causing the shell to bounce at a large angle, and only jumped 5 times, all of which smashed a large piece and then jumped over the top of the head, and finally rolled on the ground without jumping, and waded out of a bloody alley of more than 30 meters. The most terrifying thing is that there is a Jiannu who watched the cannonball roll slower and slower, and was about to stop, and couldn't help but block it with his feet, probably wanting to see what the cannonball looked like, and then his leg turned into a burst of flesh and blood. The cannon killed at least 30 people, wounded more than 20 people, and two horses.

Zhang Chengdong quickly recorded the ricocheting situation, charge, angle, wind speed and other data. Soon the twenty-four-pounder guns also fired, this time adjusted to a depression angle of 3 degrees, and directly hit the dense personnel in the middle of the large formation, this time ricocheting seven times. Dozens more casualties. This distance was all within the range of a six-pounder gun. The six-pounder gun had a range of more than 1300 meters, and the twelve-pounder gun had a range of more than 1900 meters. Fire the cannon in turn. The four guns took turns firing, the six-pounder gun was finished, and the thirty-two-pounder gun was reloaded and fired.

A shot every ten seconds brought a lot of pressure to Jiannu. The horrors of the shelling were truly appalling. The shield car is the same as the paper paste, as long as it hits, it will inevitably make a big hole, or even directly shatter and scatter, and the secondary damage caused by the sharp wooden thorns is very serious. Sometimes a large piece of wood flies out and shoots a dead one.

Fortunately, there were triple armored heavy infantry walking in front, and the sawdust was fine as long as it was not pierced in the exposed position such as the face and hands and feet, but the slaves on the cart were miserable, they had no armor, and the wooden thorns pierced directly into the limbs, and the clothes could not stop the sharp wooden thorns at all. Crying and cowering, hiding in all directions. The Red Tooth Horn used whips, clubs, and even direct knives to barely maintain their formation, bypassing the broken shield cart and continuing forward.

Li Jing said at that time that in the face of artillery solid shells, the traditional infantry thick formation is to kill itself, and we will engage in horizontal formations in the future. At that time, Li Jing saw that everyone didn't understand deeply, and made a joke. It is said that knowing that boiling water is hot is called knowledge, and only when your hands are hot is it called experience, and you can only truly comprehend it when you are on the battlefield.

Sakhalian looked resolute, the shield car was too heavy, and it was difficult to walk under the thick snow half a meter deep, but he couldn't give up, and he rushed to within one hundred and fifty meters, and the other party was about to release the arrows. Fortunately, the opponent did not have many artillery pieces, only four, all of which were shot down from the side hills. Casualties were tolerable.

Fortunately, the snow was not too deep in some places on the river, and after a quarter of an hour, the front shield car finally approached the riverbank. But the slopes of the riverbank were poured with a lot of water, and they turned into ice. The shield cart was very heavy, and it slid down when pushed up, and under the coercion of the white swing teeth, the slaves shouted the trumpet, desperately pushed the cart up, and one finally pushed it up the embankment, and it turned out that there were many soldiers in ambush behind the embankment, and collectively threw down the rolling wood, which not only smashed the shield cart down, but also broke the legs of many people.

A large number of shield carts were piled up under the river bank, and more and more people gathered behind, and the rear did not know the situation in front. Each cannon on the mountain took more than thirty lives.

Li Yu looked at the enemy army on the river, at least more than 1,000 soldiers and more than 1,000 slaves. He ordered the heralds to raise banners on the watchtower and sound a "mine" of fifty pounds of gunpowder buried in the center of the river.

Seeing the signal from Mao Bing to the battalions in Youyang, the personnel who had been determined in advance quickly pulled the fire rope, and the fire rope directly pulled the fire pipe, and the copper wire, glass powder, and sulfur friction inside quickly caught fire and ignited the medicine bag.

"Boom, boom, boom" a series of explosions in the center of the river remembered. Fifty catties of charge, equivalent to 3.5 kg of T/NT, is hugely powerful. In the middle of the river, the men and horses and shield carts directly turned into pieces and flew into pieces, and huge blocks of ice were blown up all over the sky. The bones of the people under the smashed were broken and the tendons were broken. With the continuous explosion, the ice surface of the real river quickly cracked, and the cracks like glass quickly stretched, dense as a spider's web, and then the shield cart could not bear the heavy load, and collapsed one after another. A large number of soldiers fell into the river.

Most of the slaves could not swim, some wore three layers of armor, even the archers were also two pieces of armor, fell into the cold and biting river and quickly sank to the bottom, and could not float at all, but the slaves in cotton clothes quickly fluttered in the water, and some climbed ashore. Some climbed onto large chunks of ice floe.

Sakhalian was completely stupid, half of the 3,000 soldiers had passed, and now the river had been blown up, and the rest was blocked on the west bank, and the two ends of the river that had been blown up could not be opened, and it would take a lot of time to get around.

The opportunity must not be missed, the generals of Youyang and Mao Bing reacted immediately, but they didn't expect the bombing effect to be so good. Except for the three Yalu River troops who had not yet arrived and left more than 1,000 people on guard, they all charged out. Throwing logs on the embankment, shooting arrows, rushing down the embankment with a big knife to slash, using rows of spears to stab, and stabbing the Jiannu who were not killed by the explosion into the river.

On the banks of the river, on the river ice that did not collapse, there were people fighting each other. Seeing that they were all in a scuffle, Li Yu ordered to stop the shelling, just in time to cool down the cannon.

Sakhalian was so anxious that he ordered the remaining five Niu Lu and more than a thousand slaves to hurry around to rescue him. But it was too late, in the severe cold of Sanjiu, Jiannu, who was wet with clothes and armor, quickly froze into ice. The frozen limbs stiffened, like a pack of zombies dancing. Soon they were either beheaded off or speared into the river, either drowned or frozen. A few were taken prisoner.

When Sakhalian abandoned the shield cart and bypassed the area where the river was opened, he met the three men and horses of the Yalu River who had just arrived, and Sakhalian joined forces in one place, with 4,200 soldiers and 2,000 slaves, and issued spears and knives to the slaves, and turned around and rushed to the tiger skin post and the high ground of Li Yu and Li Yu on the east side.

Sakhalian sent an order to Kamutu, all the 2,500 regular soldiers of the Sheep Bone Division, and the men and horses came back immediately, concentrating their forces to defeat the Ming army. With this addition to his pro-army of more than 400 men, Sakhalian gathered another 9,000 troops. Fierce from the western land.