Baituwu Liu Bei sent someone to give it to Zhang Xiaopang.

Zhang Xiaopang replied to thank him. He asked Liu Bei about the Northern Expedition. Liu Bei picked up the important things and told him.

Zhang Xiaopang wished he could grow up early and went to fight with Liu Bei to kill the enemy. He also said that his father was very strict in his care and was not allowed to go out. He studied literature and martial arts all day long. Now he can draw a strong bow with two stones, and he has also made great efforts in riding. If his father allowed him, he would ride on a white-hoofed black and instantly go to Lou Sang and reunite with his elder brother and mother.

Zhang Xiaopang and Liu Bei had letters and exchanges. They went north to the frontier and went away for several months. After military affairs were urgent, Liu Bei broke off letters and exchanges with him. Now that he returned to Lou Sang, Zhang Xiaopang wrote letters very frequently, and most of them were inquiring about the Northern Expedition. He seemed to be very interested in marching and formation.

After thinking about it, Liu Bei compiled the marching and formations, military strategies and strategies taught by his mentor into a book. He also gave him the thirty-six strategies he had sorted out. It was said that Zhang Fei was not the case. Zhang Xiaopang was also very efficient when using the trick.

Lousang's specialties include bed mats, pine spring brew, blankets, fish sauce, sausage, rice flower fish, and dried carp. Now there is Du Kang japonica rice. Liu Bei first selected brocade mats, sausage, pine spring brew, and golden silk blanket, which are collectively known as the four famous products. First, it was popular in the north and then sold to the north and south, which are well-known throughout the world. Now it can gather eight famous products: brocade mats, sausage, fish sauce, dried carp, pine spring brew, golden silk blanket, orchid ham, and Du Kang japonica rice.

Orchid prosciutto ham is not complicated. When pickling animals' hind legs, it is smoked with Western Regions spices. Nanman mountain pigs and grassland fragrant pigs are prepared by salting, plastic surgery, turning legs, washing and drying, etc., and it will be completed in a few months. The fragrance is strong, easy to store and carry, and it is sold well all over the country.

The water marble of hundreds of miles is filled with fish and rice. The rice and flowers are endless. They are dried into dried carp and mashed into fish sauce. The cattle and sheep on the grassland are endless, and they are made into sausages and ham. The cut wool is spun into wool, wool, and wool sweaters. The city of Lousang is no longer able to satisfy the merchants who have arrived in Linxiang. The people of Licheng and Du Kang are also joined. The output has increased greatly. Qingxi, Litinggou, Du Kang Gou, three waterways, boats are weaving, and merchants gather.

The carriages and horses on the official road are like dragons, and there are also crowds of people.

The white grains of "Hedong Dasal". The pickled fish sauce, sausages, and ham are delicious in color and taste, and they will not rot for a long time. Therefore, Liaodong salt ships often go down the river, enter the Wenshui River, and arrive at Qingxi through Laoya Ferry.

One stone of large salt is worth 800 yuan. One stone of salt can be sold for 80,000 yuan.

When the Liaodong salt merchant saw that the Lousang wheels and boats were flexibly and swift, he wanted to convert the price of the ship at the price of salt. Unfortunately, the dock was busy and his own orders could not be completed. He was unable to supervise the construction for the salt merchant.

The salt merchant came to Lou Sang Changleyin. Leyin smiled and said, "What's the difficulty? It's hard to build a new ship, it's easy to change an old ship. Why not turn the salt ship into a wheel boat?"

The salt merchant was overjoyed and went to look for the dock chief again. The chief informed Su Bo, and Su Bo came to report to Liu Bei again. Liu Bei nodded happily, but that's right.

Su Bo asked again, how should this renovation fee be charged?

To build a 100-stone wheel boat, it costs 25,000 to 30,000 yuan for manual materials. If it is just a transformation, it can save a lot of material labor. However, the value of wheel boat lies in advanced skills. It cannot be converted at cost price.

Liu Bei thought for a while and said: Tell the salt merchant that if the salt price can be reduced, it can be transformed for free. As many salt ships as there are, it can be transformed for him.

Su Bo took the order and left.

Soon, I negotiated with the salt dealer. A stone of salt can be sold at a low price of 500 yuan.

Liu Bei was very happy. This made the dock not mention the transformation of the wheel boat for him. In fact, the reason why the salt price is expensive is related to its freight. "A car carrying twenty-five hu of hukou is one li and one qian." The cart is one li and one qian, and it travels more than two thousand miles from Hedong to Zhuo County. Therefore, the salt price is eight hundred qian per stone.

If you switch to a boat, the freight will be reduced a lot. If you sell it for 800 yuan, it is a high price. Five hundred yuan will also have a small profit. If you change it to a car-driven boat driven by animal power, the freight will be low. Therefore, the salt merchant who is very careful in calculating will take the initiative to reduce the price just to transform the ship.

Liu Bei happily agreed.

So the wheel boat followed the Tian family in Liaodong and the salt merchants in Hedong, and was gradually known throughout the country.

The salt merchants were very smart in their calculations. After the transformation, the freight rates for the salt ships were reduced. So they sold large salt, whether in Lou Sang or the north and south of the Yangtze River, and converted into salt prices, they could be lower than other salt merchants. The same ship of large salt was sold for 80,000 yuan. He sold for 70,000 yuan. The profit was even higher. He was also a big salt in Hedong, so they naturally bought his family. The share also increased and became a huge wealth.

Hedong salt merchants regarded the wheels and boats as magical objects. They sold salt buildings and mulberry trees, not seeking money, but just to transform salt ships.

Liu Bei refused everyone.

He is not afraid of technology leakage. The principle of the wheel boat is not complicated. However, it is tested by some technical regulations such as design, casting, installation, maintenance, and maintenance. No matter which link is missing, it is not effective. It is easy to imitate, but it is difficult to operate. It is even more difficult to operate for a long time. Therefore, he also has to go back and forth to go back and forth to repair and maintain. After moving the blacksmith shop to Dukang, there is quite a leisure place in the workshop area. Liu Bei ordered Su Bo to expand the dock and change it to two rows in front and back, six hundred stone boat platforms. There are two independent five hundred stone boat platforms.

Most of them are double-brid tower ships, sailing on the Yangtze River, rivers, and near the sea. They need to help with wind. If you only use manpower to mount the oars, it is difficult to drive.

However, the emergence of large paddle wheels (paddle wheels) made it possible for five hundred stone merchant ships to abandon their oars and abandon their sails.

The five hundred stone wheel boat is thirty-six zhang long, four feet per foot wide, seven feet and two feet and five minutes high, and eight large paddle wheels are equipped with animal power, which hide the impact of the corners. It is called "paddle steamer". It can accommodate 500 soldiers and load 500 stones.

Nowadays, shipbuilding is not calculated based on tonnage, but on the length of "zero". There are wealthy merchants, such as the Tian family in Liaodong, with ships of one thousand feet.

The paddle ship and the waterway upstream of Qingxi cannot pass through, but it can leave the Baihu water fort, enter the Dukang ditch, pass through the Juma Water in the South, and then enter the Liting Gow water, and travel back and forth between Licheng and Lousang. It is easier to go out to the sea. The water of the Rushui combines Lai. The water of the North and South is combined into Lai, and it can enter the Bohai Sea. You can sail along the inland sea route.

At present, the city and ponds are all surrounded by mountains and rivers. In addition to guarding the dangers, they also enjoy the convenience of shipping. Water transportation is much more time-saving and labor-saving than land transportation.

Paddle ships have advantages and disadvantages. If they are involved in water plants, the paddle wheels will be blocked and cannot be driven.

In later years, there were cases of "there were huge trees to be used as rafts, and the ports were blocked, and rotten trees and grass floated up and down, and the plants and trees were accumulated, and the boats could not be blocked, and they were captured by their hands."

It is actually very simple to solve the problem of water and grass entanglement. Just cover the outer shell of the paddle wheel and you can do it.

What's more, Su Bo was inspired by the mowing cart to install a rotary knife set between the wheel hub and the shaft frame to cut off the aquatic weeds and debris sucked by the paddle wheel. The effect is amazing. It's just that using this method is too much of a lively power. Liu Bei ordered people to drive the rotary knife with a new set of gears separately. When needed, the soldiers on the ship can shake it together. This accumulating force drives the roller wheel and man-powered the rotary knife. The effect is amazing.
Chapter completed!