"Release the boats ~ ~"
On the first day of March, with the shouts, the boats were released into the water one by one.
Two days ago, the boats were coated with a layer of tung oil.
After strict inspection, the life-saving equipment was sent to the boats and they began to sail to various places.
A string of boats was tied behind the boats that were following the current, and two or three boats were tied against the current.
The people who wanted to go back to Chang 'an offered to help for free. They brought the goods onto the boats and helped a few boats back to the village.
The people who were rowing the boats on the water waited for a while. When they found that no one asked them to leave, they were relieved and continued to work.
The people who were carrying bags on the road saw boats coming from the canal and stood there waiting.
When the boats arrived, they asked where they were going and quickly went to the boats behind to help.
Since there were water nets and boats, the people who carried things on the water became lazy.
Carrying 50 kilograms of things and carrying 100 kilograms of things on the ground and walking with their legs was definitely not comparable to walking with the things on the boats.
Going against the current was also easier than walking by themselves. Three or four people could walk together and take turns to rest.
The children of the rich who did not need to work ran to the riverside to watch the boats.
At noon, the officials came out for a walk after lunch and also watched the boats together.
Some of them were there purely to write poems. They wanted to see a large number of boats setting off and think of a good poem. Wasn't the weather hot? They wanted to hold a poetry gathering.
The envoys from various countries at the Honglu Temple also wanted to see the prosperity of the Tang dynasty and think about the future development of their countries or tribes.
The boats on the river were still lined up and had not finished yet.
Ordinary people only saw the bustle, but those who had a little political brain saw the prosperity of the economy.
The boats were not big, but they could solve the transportation problem of the people.
Every day, the boats moved back and forth, carrying goods.
When the envoys from other places saw this, they felt that the Tang dynasty was indeed powerful.
The envoys from Tubo and Tujue wished that all the boats would sink. It would be best if a large group of people drowned.
But they knew that it was impossible. How could wooden boats sink? People were still wearing 'life jackets'.
It was impossible to count on the small boats to fall apart unless they hit them with a big boat.
The Tang dynasty had mortise and tenon technology. What was even more amazing was the iron nails on the boats, which were used together with mortise and tenon.
In the previous naval war with Japan, the Japanese ships were no match for the Tang dynasty's ships. The ships were scattered as soon as they collided. The navy of the Tang dynasty won the war in that way.
"Young Master Tubo, if not … what is that?" Isimba, who was lamenting the fact that the rivers of his country were not suitable for the use of boats, suddenly pointed to one, and exclaimed in surprise.
It was a ship that was pointed at the front and wide at the back. There were also eight seats on it.
There was a place for four people to step on. Now there were four people on the boat, the Feather Forest Flying Cavalry warriors.
There were handles beside them, and each of them grabbed the handles and stepped on them with all their might.
The front of the ship was tilted up on the water, and the ship, which was going in the same direction as the ship, seemed to be standing still, while the ship passed by.
Water splashed behind the boat. It felt like the boat was flying close to the surface of the water. Of course, this was because they had never seen a truly fast boat.
"Wow ~ ~" The onlookers on the shore were in an uproar. What kind of boat was this? It was too fast.
"I know. This is a propeller. It uses calculated blade angles, new bearings, crankshafts, and half-shafts.
This is the most advanced industrial technology of the Tang dynasty. This speed is beautiful. Xiao Yi is very capable. "
Bi Goo explained to the people next to him that the technology of the Li Family Zhuangzi was the technology of the Tang dynasty.
Song Jing was convinced. At least he did not know how it was made. This boat was many times faster than other boats.
He stared at the boat. "In a naval battle, the enemy's ship will not be able to turn around in time. When transporting supplies on the water, other boats can only look on in the dust."
On the other side of the shore, Li Yi shook his head with binoculars. "It's too slow. Four Winged Knights working together can't even reach ten knots."
Li Yi disliked it. It was too slow. Sailboats on the sea, when the wind was good and full, were faster than what they were seeing now.
Li Yi found that the boat's speed was about eight knots, or 13 or 14 kilometers per hour.
If it were someone else, it would be good if they could maintain a speed of 10 kilometers per hour.
The main reason was that the entire driving equipment was very heavy. It was not diesel or gasoline engines, and the hull was made of bamboo.
On the Yangtze River, when the wind was blowing, the propeller boat's speed advantage would not be reflected.
"I'll add a gear set later. I don't know if this steel can withstand it." Li Yi knew how to increase the speed of the propeller.
The propeller rotated ten times with one step, and the propeller rotated thirty times with one step. The speed was absolutely different.
Just like a bicycle's speed change gear, the biggest gear at the front and the smallest at the back. As long as there was strength to pedal and the chain could withstand it, the speed would be fast.
After looking at it a few more times, Li Yi went back to redesign the blueprint and sent it to the workshop.
Li Yi was not very satisfied with it, but in the eyes of others, it was no different from a miracle.
They did not think about the speed of the sailboat downstream. What they saw was the speed of the new boat going against the current.
Was it not possible to carry a driftwood with the current? The key was that it could fly against the water.
In a water battle, it was also a long-range attack. The new boat would always be in the limelight.
"How can we snatch a boat?" Bozhu wanted to understand the principle.
He already knew about the boat and had personally stepped on it. The structure was simple, but how did he think of it?
The boat he saw just now did not have paddles, sails, or wheels. The water splashed underwater. If the boat was stepped on, how could the water splash below? Why was the boat sailing forward?
A series of questions lingered in Bo Xie's mind, unable to get rid of them.
Isinba rubbed his face: "As long as they let it out for others to use, we can rent one and move it ashore."
"This thing cannot be learned by others." Song Jing saw the foreign envoys, especially the Turkic and Tubo envoys. He wanted to keep it a secret.
"I believe that even if we bring it back, they will not be able to make it. The metal is not strong enough.
Using the reverse mold method, you can cast something of the same shape, but when combined together, it cannot be used.
Pedal twice, and the gear will be worn out. You will know when you see the bicycle chain in two days. "
Bi Goo believed that this thing was not easy to imitate.
"Go and ask Li Yi. We can't let anyone learn it." Song Jing was still worried.
"This old man will go right now." Bi Gou had no choice but to bring the two of them to the bridge.
The other envoys had their own thoughts. In places with rivers, such as Japan, they hoped to obtain the corresponding technology.
The fastest person in the front had already rushed over from Japan. He told the envoys that the main group would arrive soon.
They wanted to exchange and learn in the Tang dynasty.
The Japanese envoys stationed in the Tang dynasty organized the information. They drew blueprints for all the Linong tools invented by Li Yi. They also made the actual products and waited for an opportunity to send them back.
The envoys from other places were doing the same work, including the Khitans and Bohai.
The Khitans also knew how to make a sleigh suitable for running in the mountains. Li Yi taught them, and they had a good relationship.
Of course, no matter how good their relationship was, they did not learn the key technology of the hot air balloon.
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