When Xingyu sewed canvas with Mia and Xia Xue, Xingyu began to install the rudder. Originally, Xingyu just wanted to simply install a rudder operated with a tiller. But after thinking about it, now that there are engineering ships, it is better to simply install a winch rudder that is more convenient to steer. So Xingyu designed a rudder scheme by himself.

Xingyu installed the rudder in the small ark according to the method of loading the rudder on the drifting ship. By this time, Mia and Xia Xue had already finished sewing the spinnaker. Standing on the deck of the engineering ship, they saw the rudder of Xingyu's installation, which was still operated with a tiller. Miya asked Xingyu in a puzzled voice: "You said that you want to make a winch rudder that can be driven by a steering wheel." Why is it still a rudder operated by a tiller? After Xingyu smiled mysteriously, he replied loudly: "This is just the first step. ”

In the engineering ship, there are also many chain hoists. After Xingyu returned to the engineering ship, he took out a chain hoist. Xingyu drilled holes in the shell on the side of the chain hoist zipper. Then saw a five-centimeter-long iron pipe and welded it in the middle of the zipper wheel. Then the steering wheel of the engineering ship was removed and installed on the other side of the iron pipe. After this modification, turning the steering wheel will drive the chain of the chain hoist to be retracted at one end and lowered at the other end.

Xingyu then found a one-meter-high square iron pass and prepared to use this square pass as a driving column. Xingyu installed the modified chain block next to the top of the quadripartite pass. Mia and Xia Xue could already see that Xingyu had completed the driver's seat, but they still didn't understand how this driver's seat should be connected to the tiller to operate the rudder blade.

Mia and Xia Xue saw Xingyu hoist the driver's seat onto the deck behind the small ark and load it on the left side of the deck. Mia understood that this was to keep the sail from the view. Miya and Xia Xue stood on the deck of the engineering ship, curiously watching what Xingyu would do next.

After Xingyu finished installing the driver's seat, he welded a rope loop on the sides of the boat on both sides behind the small ark. Let's take out two sailboat ropes. Xingyu connected one end of a sailboat rope to one end of the chain hoist, and then threaded the rope through the rope loop, pulled it to the tiller, and tied the tiller. The same goes for the other rope, one end of the rope is attached to the other end of the chain of the chain hoist, and then the rope is threaded through the loop on the other side, and then looped back to tie the tiller.

After Xingyu completed the entire rudder system, Xingyu looked at the rudder nervously, not knowing if his design could be used. Xingyu Zhan Keke's turn the rudder and see the pull chain of the modified manual hoist retracted, while the other end was lengthened. The tucked pull chain pulls the rope and pulls the tiller to the side. The long chain at the other end loosens the rope on the other side, allowing the tiller to turn to the other side. Xingyu turned the steering wheel left and right, and the tiller also swung left and right. After Xingyu saw that the rudder system he designed could be operated, he was excited and jumped wildly. Miya and Xia Xue were on the engineering ship, looking at Xingyu who was happy with excitement. Xiao Xi stood next to the two girls, not understanding how these three people could be so happy.

In fact, Mia and Xia Xue still don't know the real benefits of this rudder system. They just thought that the steering wheel system would be able to steer the little ark like a steering wheel. Xingyu uses the chain block to do the steering machinery, mainly because the chain block can be stuck in place. When the rudder blade is turned, it does not turn right because the driver releases the steering wheel. This way the driver does not have to hold the steering wheel all the time.

After they hoisted the lifeboat onto the deck in front of the small ark, the four of them made sure that all the items they needed in the engineering boat had been moved into the small ark. Xingyu began to carry out the next step of modification. Xingyu operated the remaining boom and stretched it horizontally to the bottom of the sail pole of the small ark, two meters from the deck. Then Xingyu welded the front end of the boom to the sail pole, and then cut the boom from the middle of the boom. So the truss is complete. Originally, the lower the position of the truss, the better, but how low it was higher than the height of people, Xingyu was afraid that an accident would hit someone.

Xingyu found four more chain hoists and installed them at the four corners of the deck of the small ark. The tension chains of the four chain hoists are connected to the stern end of the truss. In this way, you can control the sails, in fact, only two chain hoists are needed to control the sails. If the sail is on the right, the boom can be fixed by the heavy chain of the two front and rear chain hoists on the right side of the deck. When the sail is turned to the left, it is necessary to rely on the left two chain hoists to support the position of the truss. At this time, the chain hoist on the right is just loosening the heavy chain and allowing the truss to move.

Xingyu especially carefully taught Miya and Xia Xue how to cooperate with the operation of the four manual hoists to pull the ship truss. This is the most important step when sailing the Little Ark.

Xingyu, Miya and Xia Xue worked together to tie the bottom of the jib to the bord, and then lowered the top of the mast to pull the heavy chain of the manual hoist. Heungwoo hooked the top of the jib with an iron hook that pulled the heavy chain.

In the end, Xingyu used the method of installing lightning rods on drifting boats as usual, and installed lightning rods on the top of the sail poles of the small ark. Later, he also used the method taught by Grandpa Xijia to pull down four steel cables from the top of the sail pole and tie them to the four corners of the deck of the small ark to strengthen the sail pole.

Xingyu then took two rope ladders from the engineering ship. Xingyu installed the rope ladders on the railings on both sides of the small ark. Xingyu originally wanted to install the steel ladder of the oil tank on the side of the small ark to facilitate boarding. But in the end, I still choose the rope ladder, and when necessary, I put down the rope ladder. When you don't need it, it's on deck. This will prevent others from sneaking on the ship.

After the Little Ark is fully completed, Mia and Xia Xue lament the intricate design of the sailboat. Xingyu laughed and said, "With the help of modern machinery, the three of us can operate this little ark." If in ancient times, such a large sailing ship required at least five people to operate. In the past, large sailing ships often had to be operated by dozens of people! Don't underestimate the wind, if there is no chain hoist, I'm afraid the three of us together will not be able to pull a rope pulling the truss. ”

After the four of them made sure that they had not pulled anything down, they prepared for the sea trial. After Xingyu pulls up the spinnaker, Xingyu runs to steer the rudder and directs Mia and Xia Xue to move the ship's boom along the direction of the wind. When the sails are full of wind, the little ark is propelled forward. The bow with an angle of attack splits the water and has a sail that is four times larger than that of a drifting ship. Although the Little Ark was eight times larger than the drifting ship, it was faster than the drifting ship.

Xiao Xi excitedly stood on the deck of the bow of the ship, holding on to the railing, enjoying the oncoming sea breeze. Miya and Xia Xue were afraid that Xiao Xi would have an accident, so they hurriedly ran to Xiao Xi's side to accompany him. Xia Xue remembered the Titanic movie, the scene of the hero and heroine standing on the bow of the ship. Xia Xue picked up Xiao Xi from behind and asked Xiao Xi to lean his lower body forward. Xiao Xi opened his hands and shouted excitedly: "Haha! I'm flying! ”