On the movies and TV series of later Koreans, their shipbuilding skills and navy were amazing. In fact, except for the bird guns and the nine-headed bird guns, the Koreans' artillery skills were very behind. The Xuanzi Gun hit the centipede ship two hundred steps away, just like a tickling, and the shells with almost exhausted energy were of no effect.

Even if the centipede ship stopped two hundred steps away, it was used as a target to make the small cannons on the three turtle ships hit all day, and it was probably impossible to sink.

The Xuanzi Gun, not to mention the six-pound cannons of the Zheng family army, is not as good as the three-pound cannon. The six-pound cannon can have a range of two miles and has an effective range of at least 500 steps; the three-pound cannon has a maximum range of 600 steps and an effective range of 300 steps. The Xuanzi Gun cannon can only shoot more than one pound of shells with two hundred steps. From the data, you can see how behind the firearms of the Goryeo Navy are. The more advanced firearms of the Goryeo Navy are bird guns, nine-headed birds, etc., but those firearms are extremely poor in dealing with warships.

Twelve centipede ships, much smaller than turtle boats, were like wolves biting turtle boats, constantly sending shells to the turtle boats, killing three turtle boats with scars, and the corpses inside the boat were covered with blood, and the turtle boats had lost their combat effectiveness.

More than 120 Korean sailors were crowded on each turtle boat that was more than ten feet long. Each shell drilled into the tail and penetrated the entire boat, and could take away a large number of Korean lives. After several rounds of gunfires of the centipede boat, the turtle boat was killed and injured, and he was unable to fight back.

Then the Zheng family's army's Dafu ship approached and pointed the red cannon at the waterline of the turtle ship with the red cannon, and several rounds of artillery shells roared over, and several holes appeared in the waterline of the three turtle ships. The shells kept hitting, and more holes appeared. The first turtle ship began to sink. Then the second and third turtle ships also began to sink. A quarter of an hour later, the three turtle ships were left with masts exposed to the sea, and the hull was no longer in the water.

The officers and soldiers of the Goryeo Navy who fell into the water were floating and sinking in the cold and bone-blooded sea water and struggled hard. However, the Zheng family navy, who did not receive the order of Zheng Zhilong, did not send a small boat to catch people. Anyway, the Goryeo people are not worth much, and North Korea is too poor, and they cannot get a little money for the ransom after being rescued. Li Guodong didn't need these Goryeo people, so he simply ignored it and let them struggle in the cold and bone-blooded sea water until they finally freeze to death.

Except for the turtle ships they regarded as treasures, the other warships were imitated by the Ming Northern Navy's sand ships. The ships were equipped with imitation of the Bolang machine cannons, mainly relying on close distances to fight with bird guns and bows and arrows, and then jumped to gangs to seize the ship, far behind the Zheng family's navy.

After the three turtle ships were sunk, the rest of the Goryeo warships were no match for the enemy and were beaten to suffer heavy losses. The remaining Goryeo navy had no intention of fighting and fled back from the mouth of the Han River.

"I didn't expect that the navy of Goryeo Bangzi was so indifferent. Liang Lu's naval battle, how could they beat the Japanese so badly?" Li Guodong felt it was incredible.

Zheng Zhilong laughed: "Can the Goryeo beat the Japanese? Don't listen to them brag! The Japanese's Anzhai ship is no worse than our No. 1 Dafu ship. Even the Guan ship and the Panya ship are not able to deal with. The Japanese are just artillery is not as good as our Ming Dynasty. If there were stronger artillery, the Ming Navy would not have taken advantage of the Japanese Navy. If it weren't for my Ming Dynasty, they would have been destroyed by the Japanese long ago."

Li Guodong recalled some of the information he had read in his previous life and thought that Zheng Zhilong's words were very reasonable. The Goryeo Navy was blown out. In fact, the Ming Dynasty was the Ming Dynasty who destroyed the Japanese Navy, and the Goryeo Navy was rubbed on the ground by the Japanese Navy. As for why the historical materials of the Lianglu navy later became the main force of the Korean Navy? Because of the demise of the Ming Dynasty, the Ming Dynasty revised by the Qing Dynasty naturally wanted to belittle the Ming Dynasty; and Goryeo Bangzi took this opportunity to change all the historical materials that were beneficial to the Ming Dynasty and take all the credits on himself.

In short, this world's largest country is extremely shameless. Anyway, Li Guodong has no good impression of Goryeo.

"Brother Zheng, I have to do me a favor." Li Guodong suddenly thought of something.

"As long as you have money, I can help you with whatever you want." Zheng Zhilong spoke directly.

"Of course, you are now mercenaries, so you will certainly give money to do things. In fact, this is very simple, it is to destroy the Koryo people's boat yard."

"Okay! No problem, destroy a boat yard and give five thousand silver!"

"Is it too expensive?"

"It's not expensive anymore, this price is very fair." Zheng Zhilong smiled while twisting his beard.

Li Guodong said in his heart: No wonder during the Chongzhen period, after Jiannu obtained the Korean Navy, Emperor Chongzhen did not transfer the powerful Zheng family navy to the north to destroy the Korean navy and shipyard. People like Zheng Zhilong would not do anything that would have no benefit to him, and Emperor Chongzhen could not afford to ask the Zheng family navy to go north. If he forced his orders to go north, Zheng Zhilong would definitely delay the situation on the pretext of not having military pay, and the saliva of the censors in the court would drown Emperor Chongzhen.

"Yes, I can give money. Brother Zheng, you go and destroy the Goryeo Kanzi shipyard. When it gets dark, I will take people ashore to burn the Goryeo naval master. After I burn the Goryeo Kanzi naval master, we will set out early tomorrow morning to destroy the Goryeo shipyard from the Han River to the Yalu River." Li Guodong said.

"Okay, set the time. You go ashore to burn the Koryo Navy's ships. We will pick you up by the sea. While it is not dark yet, there is a boat 30 miles northwest. Let's go and destroy the boat yard first." Zheng Zhilong laughed.

The shipyard Zheng Zhilong mentioned was thirty miles northwest of the Han River estuary, and very close to Jianghua Island. Zheng Zhilong left all the large ships of the navy, led by Shi Fu, and patrolled the area near Jianghua Island to prevent the Qing army from smuggling through Jianghua Island and capturing the Korean princess and ministers. All the small boats headed towards the shipyard.

The Zheng family navy's boat sailed to the Goryeo's yard. Even if there was only one small sampan near the shore, no boat would come to stop it.

A fleet of small ships such as centipede ship, No. 3 blessed ship, small sampan, and other small boats approached the yard. Li Guodong found that the yard was obviously looted by the Qing army, and there were no one on the shore. There were more than ten half-built ships parked on the shore. There were also mountainous piles of wood, hard sails, cables, iron anchors and other shipbuilding materials, as well as some winches, carts, saw machines, planers and other shipbuilding tools and equipment.

The Zheng family army naval boat was on the shore, and a large number of naval officers and soldiers boarded the shore and moved all the wood used by the Koreans to build ships. The wood moved was loaded on a cart and pushed into the water. Then, all the wood was tied into wooden rafts and trapped behind the boat, preparing to tow away by the boat. As for the semi-finished ship, those who could be put into the water would be pushed into the water and taken away. Those who could not be put into the water were ignited by the Zheng family army and all burned down. Other shipbuilding materials and equipment were taken away by Zheng Zhilong, and all the things that could not be taken away were burned.

"Jiannu is here!" When the landing Zheng family sailors were busy, someone suddenly reported that they found a Qing army coming.

"I didn't have time to move everything away, pour oil on it, and burn it all for me with a fire." Zheng Zhilong gave the order.

A team of about 300 Qing cavalry rushed towards the yard and found the movement in the yard. The Qing general, the leader, shouted: "Go and stop Minggou! Don't let them move things away!"

Before the Qing cavalry entered the yard, they saw the Zheng family evacuate the yard and boarded a small boat to retreat. The last few people who retreated were holding torches in their hands and lit the goods that they had no time to take away.
Chapter completed!