Chapter 891: The Spaceship Is Too Slow

"Let's release the boat~~"

On the first day of March, accompanied by shouts, pedal boats were put into the water one after another.

Two days earlier, the boats were newly painted with tung oil.

After strict inspection, the life-saving equipment was sent to the boats and began to sail to various places.

A string of boats was tied behind the boats going downstream, and two or three were tied upstream.

The people who wanted to go back to Chang'an took the initiative to help for free, took the goods on the boats, and helped to string a few boats back to the village.

The people who were rowing boats on the water waited for a while and found that no one asked them to leave, so they were relieved and continued to take jobs.

The people carrying bags on the road found that there was a boat coming to the canal next to them and stood there waiting.

When the boat arrived, they asked where they were going and hurried to the boat behind to help pedal.

Since the existence of water networks and boats, people who carry things have obviously become lazy.

Carrying fifty kilograms of things and carrying a hundred kilograms of burdens, walking with legs is definitely not as good as putting things on the boat and pedaling.

It is also easier to go upstream than to walk by yourself. Three or four people pedal together and take turns to rest.

The children of wealthy families who did not have to work hard all ran to the river to watch the boats.

At noon, after lunch, the officials ran out for a walk and watched together.

Some of them came purely to write poems, to see the scene of a large number of ships setting off, to think of a good poem. It was hot, so they had to hold a poetry meeting.

The envoys from various countries in Honglu Temple wanted to see the prosperity of the Tang Dynasty and think about the development path of their own countries or tribes.

The pedal boats on the river were lined up, and they had not been released yet.

The ordinary people saw the bustle, but those with a little political sense saw the economic prosperity.

The boats were not big, but they could solve the problem of people's travel.

Every day, the boats ran back and forth, and all the goods were flowing.

The envoys from other places saw it and felt that the Tang Dynasty was indeed powerful.

The envoys of Tubo and Turkic wished that all the boats would sink, and it would be best if a large group of people were drowned.

But they knew it was impossible. How could a wooden boat sink? People were still wearing "life jackets" on their bodies.

Expecting a small boat to fall apart is impossible, unless you use a big ship to hit it.

The Tang Dynasty has mortise and tenon technology, and what's more powerful is the iron nails on the ship, which are used in conjunction with mortise and tenon, making it very strong.

In the previous naval battle with Japan, the Japanese ships could not hit the Tang Dynasty ships, and they fell apart after a collision. The Tang Dynasty navy won the war in that way.

"There are few rivers in Tubo, otherwise... what is that?" Isimba was sad that the rivers in his place were not suitable for boats, and suddenly pointed at a boat and shouted in surprise.

It was a boat with a pointed front and a wide back, and there were also places for eight people on it.

The place for four people can be stepped on. Now there are four people on the boat, Yulin flying cavalry warriors.

There are handles next to them, and they grab the handles and step hard.

The front of the boat was lifted up on the water surface. The ships in the same direction as this boat seemed to be parked there without moving, and this boat jumped past it.

There were splashes behind the boat, and the boat felt like it was flying close to the water surface. Of course, this was the fastest boat they had ever seen.

‘Wow~~’ The people watching on the shore were shocked. What kind of boat is this? It’s too fast.

“I know, this is a propeller, with a calculated blade angle, and new bearings, crankshafts and half shafts.

This is the most advanced technology of our Tang Dynasty industry. This speed is beautiful. Xiao Yi is capable.”

Bi Gou told the people next to him that the technology of Lijiazhuangzi is the technology of the Tang Dynasty.

Song Jing expressed his admiration. At least he didn’t know how it was made. The speed of this boat is many times that of other ships.

He stared at the boat: “In a naval battle, the enemy’s ships have no time to turn around. When transporting materials on the water, other ships are far behind.”

On the other side of the shore, Li Yi raised a telescope and shook his head: “Too slow, four people Yulin Feiqi work together, less than ten knots.”

Li Yi disliked it, it was too slow. The sailboats on the sea, with full sails when the wind direction is good, are faster than what we see now.

Li Yi found that the speed of the small boat was about eight knots, that is, thirteen or fourteen kilometers per hour.

If someone else came to pedal, it would be good to maintain ten kilometers per hour.

The main reason is that the entire set of driving equipment is already very heavy. It is not a diesel or gasoline engine, and the hull is made of bamboo.

On the Yangtze River, under favorable wind and water conditions, the speed advantage of the propeller boat cannot be reflected.

"I will add a gear set later. I don't know if this steel can withstand it." Li Yi knows how to increase the speed of the propeller.

The speed is absolutely different when the foot pedals once and the propeller rotates ten times, and when the foot pedals once and the propeller rotates thirty times.

Just like the speed gears of a bicycle, put the largest one in the front and the smallest one in the back. As long as there is strength to pedal and the chain can withstand it, the speed will be fast.

After a few more glances, Li Yi went back to redesign the drawings and sent them to the workshop.

What Li Yi was not very satisfied with was no different from a miracle in the eyes of others.

They did not think about the speed of the sailboat going down the water, they saw the speed of the new boat in the upstream.

Can't you float with a piece of wood downstream? The key is to fly against the water.

In a water battle, which is also a long-range attack, the new boat can always take the upper hand.

"How can I rob a boat?" Bo E was thinking about it and wanted to figure out the principle.

I already knew about the steamship and had stepped on it myself. The structure is simple, but the difficult part is how I thought of it.

The small boat I just saw had no oars, sails, or wheels. It was splashing water underwater. How could the water below be splashed when I stepped on it like that? Why did the boat move forward?

A series of questions lingered in Bo E's mind and could not be shaken off.

Isimba rubbed his face with his hands: "As long as they let it out for others to use, we will rent one and move it ashore to see."

"This thing cannot be learned by others." Song Jing saw foreign envoys, especially the envoys from the Turks and Tubo, and he wanted to keep it secret.

"I believe that even if we take it back to them, they can't make it. The metal strength is not enough.

The same shape can be cast by the reverse mold method. If you put it together, it can't be used.

Pedal twice and the gear will be worn out. You will know it when you see the bicycle chain in two days."

Bi Gou believes that this thing is not easy to imitate.

"Go ask Li Yi, don't let others learn it." Song Jing is still worried. ＵU看书 ｗww.uｕkanshu.net

"I will go now." Bi Gou had no choice but to take the two people to the bridge and ask.

The other envoys had their own thoughts. They hoped to obtain the corresponding technology in places with rivers, such as Japan.

The fastest front personnel have arrived from Japan and told the envoys that a large group of people will arrive soon.

To communicate and learn in Datang.

The Japanese envoys stationed in Datang sorted out the information. They drew and drew drawings of all the agricultural tools invented by Li Yi, and also made real objects, waiting for an opportunity to send them back.

Envoys from other places did the same work, including Khitan and Bohai.

Khitan also knew how to make another sled suitable for running in the mountains. Li Yi taught them, and the two sides had a good relationship.

Of course, no matter how good the relationship was, the key technology of hot air balloons was missing.

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