"How? Defection in front of the Goryeo annex army in the west of the city? ”

When the news reached the north of the city, the building cart pushed by the Jin army was still a hundred steps away from the city wall, and Qin Hui, who was chatting with Jin Dazhu, was shocked after learning the news, and hurriedly asked Jin Dazhu if he knew about the situation of the Goryeo annexed army.

Although Jin Dazhu was only a single driver, the troops he led were also the Kaijing Forbidden Army, so he naturally knew the situation, so he was also busy with Qin Hui introducing the situation of the Dragon, Tiger and Leopard Army, but when Qin Hui heard that the general of the Dragon and Tiger Army was Cui Zhi, the son of Cui Zhuo who had been cleaning up with Huang Jie before, he immediately recalled that it was this kid who was the obstruction in front of Pyongyang City, which made Huang Jie find an excuse to use the Thor artillery to demolish the Pyongyang City Gate, and he couldn't help but be secretly happy.

Wasn't this Cui Zhi very awesome at the beginning? Why did he surrender the Jin army?

Obviously, Qin Hui couldn't guess that a villain with a name and surname like Cui Zhi had already received a boxed lunch by mistake at this moment, and thought that the Goryeo annex army under the city was still under the leadership of Cui Zhi at the moment, and couldn't help but express pertinent appreciation for his daring to defect.

However, just as he was talking, he suddenly saw that the Goryeo generals who were in a small circle on the side suddenly made a noise, and followed Qin Hui to follow Jin Dazhu's point, and I saw that the Jin army actually used a dead force to generalize the general, but the ironclad building cart pushed over the filled moat and was leaning towards the city wall.

The siege equipment of the building car, in the present (that is, in later generations), is a general name, basically unifying many ancient war tools with the same function. In fact, there are many kinds of building cars, such as ladder cars, nest cars, watchtower cars, overturned cars, Linchong, and moat bridges.

The ladder cart is best understood as a long ladder on a base with wheels, which can be placed on the wall as long as it is pushed under the city wall. And the nest car has a kind of "watchtower car" that fixes the watchtower on the high pole. This kind of car is made of solid wood, eight feet high, the top is placed in a plate layer, five feet wide, the content is included in the white flag to watch the enemy's movements, and the soldiers below are informed of the enemy's situation with simple flag language. Roll up the flag to indicate that there is no enemy, and open the flag to indicate that the enemy is coming; If the flagpole is stretched horizontally, the enemy is close, and if the flagpole is vertical, the enemy will reach; The enemy retreats and slowly raises the flagpole, and the enemy has retreated and rolls up the flag.

Watchtower car, there are wheels at the bottom of the car that can be pushed back and forth; There are pedglings on the poles for the sentries to climb up and down; The side of the vertical rod is fixed with a thick rope diagonally; The watchtower itself is equipped with a rotating shaft, which can be rotated on all sides for observation. This watchtower car is taller than the nest car and has a wide field of view. Later, with the continuous improvement of observation equipment, a fixed watchtower was installed to observe the enemy's situation.

If you can push it to the bottom of the city, of course, you can also put soldiers in the watchtower to attack the city.

There are also overturned vehicles and moat bridges, both of which are probably used for the same purpose, and the moat bridge, also known as the "flying river" or "flying bridge", was a convenient bridge for the ancients to pass through obstacles such as moats or moats outside the city, as a temporary bridge for the mobility of the siege army.

According to the "General Essentials of the Martial Arts", the moat bridges in the Song Dynasty were generally equipped with wheels and made into models for easy migration. There are a total of five kinds of moats and bridges in the Song Dynasty contained in the "General Essentials of the Wujing", and the width of the moats depends on the width of the moat or moat, and most of these moats and bridges were made from local materials after the attackers observed during the siege. The trench bridge not only applied mechanical devices such as pins and rollers, but the width of the bridge was as high as one zhang and five feet, and if eight were used at a time, it could provide a front of up to 12 zhang (37.56 meters) wide for the troops to pass through.

As for the last one to talk about Linchong, it is also considered to be the most interpretable weapon by the word "building car" in later generations.

The so-called Linchong, also known as Linchong Lv bus or Lv bus, according to legend, this car was invented by Jiang Taigong, because it was sealed in Lv land, so it is called Lv Gong. In fact, the earliest formation of Linchong Lu bus should be traced back to the early Song Dynasty, and there were more applications in the Ming Dynasty.

The Linchong Lu bus is a giant siege chariot in ancient times, and it is also the largest chariot in the world for thousands of years. The car is several zhang high, dozens of zhang long, the car is divided into five layers, each layer has a ladder to go up and down, the car can carry hundreds of samurai, equipped with machine crossbows, poisonous arrows, guns, halberds, knives and spears and other weapons and equipment to destroy the city wall facilities.

During the attack, the people pushed the cart to the foot of the city, the roof of the car could be level with the city wall, and the soldiers rushed to the city through the overpass to fight the enemy, and the car underneath the city wall was destroyed by hitting the wood and other tools. This kind of behemoth-like military vehicle is not common in battle, it is bulky and limited by the terrain, it is difficult to exert its power, but its sudden appearance often has a huge deterrent effect on the defenders of the city, thus confusing its position.

And now, the building car that the Jin army has come out to attack the city is exactly this kind of Linchong, but because the technology they got was snatched from the hands of the Liao people, and the Liao people are the Great Song Dynasty of the cottage, so the building car pushed up by the Jin army at the moment does not have the shape that the genuine version should have.

Genuine Linchong, the height of the car will be determined according to the height of the city wall to be attacked, generally one zhang higher than the city wall, so that it is convenient to build the overpass on the city wall. Then the length must be at least five or six zhang length and width, at least dozens of wooden wheels must be installed on both sides of the car, even if the car can not get five layers, at least there must be a height of two or three layers.

And now the building car made by the Jin army is obviously small, although the height has reached nearly three zhang six, it may be able to ride the head of the capital steadily, but the length and width are less than two zhang, and there are only three floors inside, and it can only fit hundreds of soldiers.

However, it is obvious that the building cart pushed by the Jin army in the north of the city is now materialized, not only is the interior much stronger, but the surface of the building cart is covered with a layer of fresh leather (it should be horse skin), which greatly strengthens its ability to defend against arrows at a distance.

In fact, when the Jin army pushed the building car, the defenders also hurriedly mobilized several cyclone cannons (manpower-towed trebuchets) to snipe, and the Goryeo whirlwind cannon still used the technology of the Sui and Tang dynasties, that is, dozens of people worked together to pull the traction rope and shake the swing arm to throw the stone out. Compared with today's thunderbolt cannon of the Great Song Dynasty, in addition to human traction, animal tendons have been added as accumulators to increase power, which is of course a very outdated weapon.

Therefore, I don't know if it's because Goryeo used outdated technology, or because the copycat version of Linchong of the Jin Kingdom is really awesome, and it almost didn't use the effort of tea, and I saw that in the tsunami-like shouts of the mountains, the Jin army building car also stopped steadily on the edge of the city wall, and put down the overpass with a squeak, and then I saw countless Jin army daredevils wearing heavy armor swarming down from the building car!

Qin Hui looked at the tower of the city gate, and was dumbfounded, and he didn't care about other things and shouted to the young attendant who had been following behind him: "Quick! Signal Hua Dalang! Defend the city! ”

When the young man heard this, he did not delay, and hurriedly took off the short-handled iron-tired bow in the bow bag on his back, opened the bow and shot a Ming Di out!