The Tatar bandit group now needs all kinds of sea vessels, so they have to build them. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 ｉｎｆｏ

When it came from Goryeo that their Hoppo Shipyard and Hoppo Fortress were looted by pirates, and the Tatar overseers were killed, and most importantly, their craftsmen were kidnapped, and the Hoppo Shipyard was burned down!

Their army also suffered numerous casualties......

When the big leader Kublai Khan learned about it, he was about to scold Goryeo for being incompetent, but when he thought of the destruction of his Huangdao naval base, he couldn't scold it...... When have pirates been so rampant!

These two shameless robberies were clearly committed by a group of people!

They are on Jeju Island!

Of course, he ordered the pirates to be suppressed...... However, the ministers all thought that the ships should be built first, and those pirates were just a disease of scabies, and the Great Song Dynasty was a piece of fat.

This reason is right, the big boss Kublai Khan immediately ordered the rebuilding of the naval army, he knew that the territory of the Great Song Dynasty was a land of water towns, and it was difficult to move an inch without large and small ships.

Therefore, the land of Mizhou is the natural first choice for shipbuilding...... They intensified their efforts to defend the coast, and at the same time stationed a large number of men.

Kublai Khan, the great leader, issued a death order, and if it was destroyed by pirates again, the person in charge would meet him to death.

Captain Huang Zu faced a relatively severe test.

The first challenge was how to break down the wooden fence at the Michigan shipyard.

The information they gathered showed that the Tatar army had built a thigh-thick fence on the sea surface of the Mizhou shipyard, enveloping the entire dock area, and it would be even more difficult to destroy it by ships.

How did you break this sea fence?!

In addition, on land, they also built wooden fences, turning the former open shipyard into a closed one...... This helps them prevent outsiders from breaking in. It is also good for the caretakers of the craftsmen.

After all, the craftsmen who don't pay for food need to be well watched, otherwise, they will run away with their families when they have the chance.

The whole family of the craftsmen is also encircled in it.

The second difficulty was that the Tatar robbers had laid down 2,000 men here...... Among them were five hundred cavalry, which was not to be underestimated. Although they are not authentic Tatar cavalry, they are also invincible in the Shandong Lumizhou area, because the terrain is flat and you can run horses at will!

Captain Huang Zu discussed with his subordinates for a long time, and even he brought in the domestic boys of Zhang Island Master to discuss, and finally came to the conclusion that it could not be done without sacrificing the team members, it was just a matter of how much to sacrifice.

Captain Huang Zu finally designed a set of battle plans. He was divided into two points of attack.

On the sea, he can first use a rope to lasso the fence and pull it away with the help of a sailboat!

On land, he could defend against cavalry assaults by forming pikes, using cap-style mini guns and artillery......

This solution has many loopholes...... For example, when they pull the fence, they have to risk the attack of the opponent's large bed crossbow, or there are countless bows and arrows.

On land, they had to send at least 500 men. And whether the enemy's cavalry will attack in the direction they arranged is a question...... In addition, the archers of the opposing side have to be on guard.

Zhang Guoan, the island master, was satisfied with this relatively complete combat plan, but he still asked Captain Huang Zu. Say, "Are you sure you have all the ways to do it?" ”

Captain Huang Zu said cautiously: "This is a brainstorming plan...... I think it's basically all thought of. ”

Zhang Guoan shook his head and said, "You didn't think of the most important point......

“……”

Zhang Guoan, the owner of the island, said seriously: "Encounter trouble and difficulties...... You're going to think of me to solve the problem......"

Captain Huang Zu was completely speechless, obviously he wanted to design it himself!

"Why do you attack their stockades? Why wait for their men to come out? They thought we wouldn't be able to fight in the stockade? ”

Captain Huang Zu said: "You can use stone cannons or artillery, but they can't hit 400 meters away, and the stone cannons are too heavy to be transported." ”

Zhang Guoan, the island owner, smiled. "It's nice that you can think of borrowing tools, but you don't know that there's a weapon called a rocket that can fly thousands of miles away......," he said. They will also be able to penetrate into enemy camps with great accuracy, as the barracks are too large a target. ”

“？？？”

Yes. After receiving the information, Zhang Guoan thought of special operations, so that he would not let his team members fight against the Tatar army...... If you want someone with blood, ask that person to take the lead.

Of course, he still has to let the players use their brains, and the more processes like this, the better.

Zhang Guoan is ready to go directly to the Macongreve rocket, instead of using the Hale rotary rocket.

According to the information they obtained, the Tatar barracks were only 400 meters away from the fence, and the Congreve rocket could reach a distance of 2,000 meters, and the structure was simpler than that of the Hale rocket.

In fact, both types of rockets use solid black powder powder as the propellant and are launched by direct reaction force.

The first step in the manufacture of a rocket is to configure powdered gunpowder, solid, high nitrate, low sulfur, suitable for use as a propellant.

The second step is the design and manufacture of the quiver, which is the core part.

This required leaving a flamevent at the tail of the barrel and a combustion chamber in the powder column, which was then rolled in iron or copper.

As mentioned above, the earliest rockets appeared in 1161 on the Song and Jin quarrying battlefields, made of paper tubes, with ****** and explosives inside, and mixed with lime, the sound of the explosion and the lime flying everywhere are considered lethal weapons.

This rocket of the Great Song Dynasty later fell into the hands of the Jin army, and in 1232 the Jin army innovated it and named it the "flying musket" to deal with the Tatar army.

After the Tatar army captured Bianjing, it obtained the rockets and craftsmen of the Jin people, and then incorporated them into the army and used them on the battlefields of Europe and Asia, which made rocket technology spread to Central Asia, Persia and other places.

However, they can't really use this time and space, and due to the lack of medicinal power, they still focus on entertainment.

The Congreve rocket designed by Zhang Guoan weighs 14.5 kilograms, has an arrow length of 1.06 meters, an iron quiver with a diameter of 0.1 meters, and is equipped with a 4.6-meter-long balance bar.

On the engine of the rocket, he started with just an ordinary gunpowder column.

He extruded a black fire/medicine evenly mixed with glycerin through a wooden mortar into a deep-hole column.

This kind of extrusion is very safe, and I have never heard of black fire/medicine being able to be compressed by human power.

Then, he began to test.

The end result is that it has a range of up to 1800 meters...... And because it is processed by almost the same weight, the same strength, and the same size, the driving force of each medicine column is not much different, a difference of at most thirty meters, which is not bad for a military camp.

Zhang Guoan, the owner of the island, put two kilograms of explosive gunpowder on the combat part of the rocket, and during the test launch, he found that the power was huge, and it could kill and injure organisms within a radius of ten meters, especially since it had a very loud sound, not to mention horses, in the case of defenselessness, people would be scared to death!

He also specially designed single-barrel and planar five-barrel rocket launch platforms, and the height of the launch canister can be mobilized.

Captain Huang Zu looked at the rockets that exploded in the distance in ------ (to be continued.) )