Yang Guozhu exclaimed: "The wheelless chariot can actually run faster than the cavalry! I took off my armor and treated it as a light cavalry. My war horse is a good horse, but I can't catch up with your wheelless chariot!"

Li Laoer jumped off the sled and pointed to the horse's hoof prints on the ground and said, "Yang Junmen, although your war horse is a good horse, the war horse is directly carrying a heavy load. The horse's hoof prints left in the snow are very deep. If the horse's hoof prints are deep, the resistance of the war horse will be greater when running. Look at the war horse pulling the cart. The war horse does not need to carry a heavy load. The horse's hoof prints are very shallow, so the resistance of the running is smaller, so in the snow, the horse pulling the cart runs much faster than the camel's horse."

"May I ask Li Shou Ge, this car has no wheels, so how can it run?" The censor Fang Daren came up and asked curiously.

Li Laoer pointed to the iron-packed wooden board at the bottom of the car and explained: "These two boards are placed on the snow, and the horse pulls the car. The friction between the board and the snow will heat up. The snow at the contact point melts a little, which makes the friction extremely small, so this wheelless chariot can run on the snow."

"It's so magical!" Sun Chengzong rushed over. He saw all the scenes of Li Lao Er racing against Yang Guozhu just now. When he saw the sled surpassing Yang Guozhu's fast horse, Sun Chengzong was shocked.

Yang Guozhu said: "It's just that this thing can only be used in winter, and it will be useless when the weather is hot."

"It's okay, it's hot, change to the wheels." Sun Chengzong smiled.

It is thanks to the Little Ice Age that the North China Plain is almost cold and ice-cold with ice and snowy land. If it were the North China Plain in the 21st century, it is likely that there would be no snowflakes in a winter, only smog.

The Bolang sled improved by Li Laoer can carry three people, a gunner, a loader and a gunner, and a coachman. The car carries a 100-pound Bolang cannon, a Lumi gun, a three-eyed gun, a strong bow and a spear. The coachman is equipped with a strong bow and a loader is equipped with a Lumi gun. In close combat, the loader can also fight with a spear, and the gunner uses a three-eyed gun.

The muzzle of the Folang machine cannon is aimed at the rear of the car. If the enemy comes from the front, there is a Lumi gun, a three-eyed gun and a strong bow of the driver can deal with it. Even if the enemy is approached, the spear and three-eyed gun can also deal with it. The most amazing thing is that the sled car full of three people runs faster than the light cavalry. On the flat ground, a war horse pulling a sled is much easier than running with a heavy load. It can pull a cart for a long time without changing a horse. When retreating, it is much faster than the Mongolian cavalry, so there is no need to worry about being caught up. But Li Laoer also knew that the sled cart was used in the past few years. In a few years of the Wuqiao mutiny, Kong Youde and others brought advanced cannons to the Later Jin Dynasty. At that time, the sled cart would not be easy to use.

However, Li Laoer discovered another problem: Sun Chengzong's chariot cannot be used directly to change it into a sled, because most of Sun Chengzong's chariots are side vans. The so-called side vans means that only one side has a shield board and no shield on the other side. This is because the chariots are formed to fight in formations, forming a chariot array, forming a circle, so there is no need to waste weight and set up a shield on the other side. However, the sled car is different. The sled car is not a unit that forms a formation to fight, but is basically a fast motor unit, so there must be shield protection on all sides, that is, the main van.

The weight of the main van should be increased a lot. The original side van, plus a Folang machine cannon, weighs only between 400 and 600 kilograms. If a main van, plus a Folang machine cannon, weighs more than 700 kilograms, and the three soldiers on the car, the total weight is more than 1,000 kilograms.

Therefore, Li Laoer decided to abandon the Flang machine cannon and planned to switch to the lightweight turtledove-legged gun. Moreover, although the Flang machine cannon fires fast, due to the limited technical level of that era, the disadvantage of the Flang machine cannon is that the gap between the sub cannon and the abdomen is large, causing gunpowder gas leakage, so the range and penetration of the Flang machine cannon are very poor. The Flang machine cannon used in the chariot camp could not penetrate the Qing army's shield chariot at all.

This kind of musket has high accuracy, long range, and can fire shotguns at a short distance. And after reducing the gun position, the sled can pull more rescued people back.

The weight of a sled car such as this can be reduced to 600 kilograms, carrying three soldiers, less than 1,000 kilograms. A sled car pulled by two horses can be taken with at least five or six people with them. If four horses are pulled, ten people can be taken away.

Li Laoer began to build sled trucks, and the materials needed were ready in the warehouse. Under Li Laoer's command, the yamen runners opened the warehouse door, and the craftsmen moved out the wood and pig iron from the warehouse. Afterwards, Li Laoer directed the craftsmen to work, and with the cooperation of the people who came to Tongzhou to take refuge, they created one sled truck after another.

After a day and night of construction, the craftsmen and civilians had built fifty-eight heavy-duty sled cars. Each of these van-type sled cars weighed 600 kilograms and could be towed with four war horses. The car was equipped with a heavy-duty squeezing gun weighing 20 kilograms, a Lumi gun, a three-eyed gun, a strong bow and a spear, and all three soldiers were equipped with short knives.

After the snowmobile was built, Sun Chengzong asked the best-quality firearms from the arsenal to distribute them to the snowmobile camp. The firearm soldiers in the snowmobile camp were all composed of the original firearm soldiers of the chariot camp, but the driver in charge of chasing the car was drawn from the cavalry.

The chariots are protected by thick wooden boards on all sides, so the soldiers in the chariot do not need too heavy armor. Each soldier only needs to wear a piece of cotton armor on his body, and a wide-eave eight-petal iron helmet can be used to protect the feather arrows shot by the Later Jin soldiers. Using the wide-eave eight-petal bright iron helmet, when encountering the feather arrows shot by the Later Jin soldiers, just lower the head, and use the iron helmet to block the falling arrows.

Li Laoer's snowmobile camp plan was built in the model of Sun Chengzong's car camp. One battalion had 128 heavy sleds and 256 light sled cars. The light sled car weighed only 300 kilograms. The car could carry a coachman and two bird gunners, equipped with two bird guns, a strong bow and a spear. The light sled car was pulled by two war horses. When a car was to rescue the people, a car could also take five or six people to evacuate.

On this day, when Li Laoer was leading the craftsmen to build a sled car, more than a dozen elite Ming army soldiers wearing mountain armor and eight-petal wide-eaves and pointed helmets were coming in outside the Tongzhou craftsman's workshop. A group of people surrounded a middle-aged general wearing a phoenix-winged helmet and a big red official robe.

Before Li Lao Er could come back to his senses, he saw a small school officer wearing a light green seventh-rank official robe and a red tassel-topped Ming iron helmet walking straight towards Li Lao Er.

The man approached and Li Laoer realized that the young school was only nineteen years old, twenty years old, with a strong figure, sword-eyed eyebrows and tiger-eyed eyes, and a handsome appearance.

At this time, Li Laoer had to do rough work, not wearing official robes, nor was hesitant armor, but only wore a brand new cotton coat. Looking at Li Laoer's fair skin and handsome appearance, the officer seemed to have regarded Li Laoer as a craftsman's leader.

"The child is so stinky that he is not dry. No wonder the Ming weapons are of poor quality and are unbearable to use!" the little officer said.
Chapter completed!