More than 2,000 people scattered and practiced along the riverside.

Sure enough, the Jin soldiers on the other side saw their strange movements, thinking that they were going to cross the river, so they quickly gathered their men and horses, and stood along the riverside, and there were archers who frequently drew bows and arrows to this side. In this way, Lu Qinghou and the others immediately understood what the prince meant, the golden arrows flew across the river, and there was no strength when they got here, but they could still replace the sandbag, and it was even better than the sandbag.

The soldiers of the camp were still dodging the arrows that came at them, keeping a distance from the riverside, but as they gradually figured out the intentions of the other party, they became bold and began to move closer to the river in batches, flashing and moving in the flying feather arrows, and they were so happy that the three Han brothers who were standing beside the prince were dumbfounded.

Zhao Tianci looked at the river and fell into deep thought, and after a while he asked, "Brother Yanzhi, how many places like this are there on the Yangtze River?" ”

Han Yan thought for a while and said, "There should be quite a few." There are three places within the Huang Tiandang range. ”

Zhao Tianci pointed to the river and said, "Can your father's big ship pass through this kind of place?" ”

Han Yan said straight, "Yes!" Although the water is narrow, the water is very deep, and there is absolutely no problem for large boats to walk. ”

Zhao Tianci shook his head, "Your father won't sail here." ”

Han Yan said straightly, "That's true. My father said that only one boat could pass through this place, and that it was very dangerous to avoid a sneak attack from the other side. So after the Jin people occupied the north bank of the Yangtze River, the big ships no longer left here. ”

Zhao Tianci thought of another question, "Brother Yanzhi, I always feel that there are too many uncertainties in sailing operations, is there any other way?" ”

Han Yangu said, "I asked my father, and he said that the boat travels on the water. Either by sails or by manpower, there is no other way. ”

Zhao Tianci glanced at Han Yangu and said with a smile, "There are methods, but I don't know if it can be achieved." ”

"How?" The eyes of the three Han brothers all turned to him. Zhao Tianci picked up a dead branch from the ground and kicked the sand on the ground with his foot. A boat was sketched with dead branches, and two small circles were drawn on the bottom of the bow and stern.

"What's that?" Han Yanzhi was obviously more interested in these things.

"It's a booster, instead of a hand-cranked oar." Zhao Tianci squatted down and drew a spiral wheel, "That's probably what it looks like." ”

Han Yanzhi and Han Yangu were confused, but Han Yanzhi's eyes lit up, "His Royal Highness the Prince, can you be more detailed, there are many local plumbers." Maybe it can be made. ”

Zhao Tianci was overjoyed when he heard this, "If you can make it, it will be much easier." ”

Of course, they didn't know what Zhao Tianci meant by "easy to do", and they all gathered around to listen to him explain to Han Yanzhi how this thing called "booster" worked, but although they listened carefully, except for Han Yanzhi, who was interested, everyone else was confused.

When Han Yanzhi finally had no questions to ask again, Zhao Tianci straightened up. Holding his back with his hand, he grinned and said, "Brother Yan." I'll leave it up to you. ”

Han Yanzhi hesitated, "This...... I don't have a rank in the army, so it's better to let my eldest brother do it. ”

Han Yanzhi shook his head and said, "Second brother, I didn't understand what His Royal Highness the Crown Prince said, how can I do it well?" ”

Zhao Tianci said with a smile. "Brother Yan, you don't have to worry, from today onwards, you will be the chief of internal affairs of the prince's line, and you will have full authority to handle the affairs of requisitioning civilian ships and civilian waterworkers. Those who need money. You just go to Fang Fei and ask for it. ”

Han Yan said happily, "Thank you, prince!" ”

Before I knew it, two hours had passed, and the training here was nearing the end, and although the Jin soldiers on the other side of the river knew that they would not cross the river, they did not dare to be careless, and always guarded on the other side.

Zhao Tianci looked at the rising red sun, "Tell the brothers to accept it!" ”

Zhao Yiyan and others gave the order to go, and soon the whole team was completed, ready to return to the port. At this time, Lu Qinghou walked over and asked, "Prince, the Jin people have given us so many gifts, do you want to take them with you?" ”

Zhao Tianci smiled, "Of course, don't leave a single branch, take it all away!" ”

So the soldiers picked up the feathered arrows from the ground and happily withdrew.

When they returned to Xingyuan, they found that Han Shizhong and his wife were waiting there anxiously. It turned out that they came to greet the prince early in the morning, but found that except for Lu Fangfei, everyone else was gone, and after asking, they learned that the prince had taken someone out for training, and Lu Fangfei couldn't tell where they went, so anxious that the two of them were like ants on a hot pot. Seeing that they came back with a large number of arrows, I was curious and finally relieved.

"His Royal Highness the Prince, what are you ......" Han Shizhong asked as he glared at the three sons behind the Prince.

Zhao Tianci said, "Today's harvest is not small, we went to the north and said good morning to the Jin soldiers on the other side." ”

Han Shizhong's face changed, and he asked sharply, "Yan Zhi, Yan Qian, Yan Gu, did you take His Royal Highness the Crown Prince down there?" ”

The brothers of the Han family hurriedly lowered their heads, and Zhao Tianci smiled and said, "General Han doesn't have to make a fuss, although it is closer to the Jin people, isn't there still a Yangtze River?" We greeted them and they gave us some gifts. As he spoke, he pointed to the arrows piled on the ground. Together, there were thousands of arrows, and they formed a small mountain.

Han Shizhong said in a deep voice, "His Royal Highness the Prince, the river is narrow there, although the Jin soldiers dare not cross the river, but in case His Royal Highness the Crown Prince is injured by a stray arrow, he will be humble but he can't afford it!" ”

"You want to hurt me?" Zhao Tianci pursed his lips, "It's not that easy!" He stepped forward and attached it to Han Shizhong's ear, and told him what he was going to do for Han Yanzhi, Han Shizhong's face was full of doubts, and Zhao Tianci said, "General Han, you don't need to know the ultimate goal of this matter, as long as you support Brother Yanzhi to help me do it." ”

Han Shizhong really didn't know what he was going to do, in fact, he wasn't too interested in knowing, so he arched his hand and said, "Obey!" ”

Zhao Tianci said again, "Don't come to me to say hello in the future, there will be a big war soon, and there are many affairs in the army, so don't worry about me." He glanced at Liang Hongyu beside Han Shizhong, "Although we people are noble, we are not so delicate, you don't have to worry about it, and you don't need to spare energy to protect us alone." Otherwise, we won't come here to help, but to add to the chaos. ”

"Yes!" Han Shizhong and Liang Hongyu hurriedly bowed down and answered.

"There is one more thing," Zhao Tianci said, "before the Jin soldiers arrive, I will hurry up and train my soldiers, and if you have a war horse in your hand, lend me two thousand horses first." ”

"Two thousand?" Han Shizhong's eyes widened.

"It's okay, 500 horses will do!" Zhao Tianci immediately reduced the price. Seeing that Han Shizhong still looked embarrassed, he sighed and said, "Okay, two hundred horses, it can't be less." ”

Han Shizhong smiled at this time, "It's up to the prince!" ”

Zhao Tianci said, "But let's talk about it first, in the future, when the Jin soldiers come, their war horses will have to be chosen by me first." ”

"Huh?" Han Shizhong was stunned, and said in his heart that this little prince is too angry, right? It's as if other people's war horses are prepared for you, but after thinking about it, he didn't dare to say it, and replied, "Okay! ”

Zhao Tianci's gaze fell on Liang Hongyu, "If Mrs. An Guo doesn't have other military affairs in her body, help me point out the essentials of naval training, Brother Yan has less experience after all." ”

Liang Hongyu didn't expect him to point at himself, and when he heard this, he was slightly distracted, smiled and said, "Dare not obey orders!" ”

Three days later, Han Yanzhi came to him, the renovated civilian boat had been completed, Zhao Tianci was overjoyed, he didn't expect it to be so soon, so he hurriedly followed Han Yanzhen to a dock by the river, and sure enough, he saw a fishing boat with wheels installed in the front and back there, and dozens of boatmen around were pointing at this strange boat.

After everyone saw the prince, Zhao Tianci circled around the fishing boat a few times and observed it carefully.

Although the renovated fishing boat has some appearance, it is still too far from his original intention. He called Han Yanzhen and the group of boatmen together and said, "That's the general appearance, but there are still some details to pay attention to. ”

He pointed to the wheels under the bow of the boat and said, "The front and rear wheels are to be immersed in water, and the two sides of the axle need to be connected to the boat with two levers at different angles, so that in the future the people on the boat can use their feet to control its rotation." The wheel in front of you should be able to adjust the angle and use it to control the direction of the boat. When he saw that the crowd did not understand what he had said, he climbed into the boat and went out to explain it on the spot.

Everyone didn't expect that this young prince would have so many things in his head. For a whole day, Zhao Tianci soaked in the dock, studying the specific implementation details with the boatmen, until it was completely dark, and the problem of controlling the two wheels on the ship was satisfactorily solved.

Then it's time for the launch test.

Because there are no bearings, the axle and the hub can only rotate by dry friction, so it is a little difficult to pedal with the feet, but after actually walking, the speed is surprisingly fast.

Seeing the actual effect, the boatmen were inexplicably excited, working overtime overnight to improve, and after many tests, there was finally a new breakthrough. Under normal circumstances, only one person needs to sit at the bow of the boat, while controlling the direction and pedaling the wheel, the speed is more than ten times faster than a normal fishing boat, if there is another person sitting in the back, start the rear wheel, the speed of the boat will increase exponentially.

The prince is very excited! With this thing, it is equivalent to an additional surface motorcycle, although it is still too simple compared to modern speedboats, but under the circumstances of the time, it is already a very high achievement.

Some of the details of the improvement were also given, adding an oblong shell to the hull, and opening only three windows in the bow and inconspicuous positions on the sides, so that the whole ship looked like a large wooden shuttle.

This is the crown prince's first amazing masterpiece: the shuttle is officially born (to be continued. )