According to his plan, when the fleet goes to sea next year, except for the sailors, it is best for everyone else to be from the elite army and the escort army, who understand military discipline and can be easily managed when they go to sea.

However, this requires them to train all kinds of talents needed to return to the Yi fleet within a year, and if they can't train them, they have to recruit the talents they need into the army and manage them with military discipline.

Therefore, Shen Jin has a lot of things to do in Liuqiu, the errand of fleet supervision has been handed over to him, the matter of talent training has also been handed over to him, and he is also responsible for the optimization of ordnance, of course, Yang Congyi promised to find someone to assist in these things, and would not let him complete it alone.

In the spring of Shaoxing 58 years, Yang Congyi returned to Lin'an from Quanzhou, and began to prepare for the supervision of the return to Yi, the procurement of goods has Lu You to do, he has been in Lin'an for half a year, has opened up a lot of relationships, as for how to do it, I have heard Tang Xun tell him before, and the required information is retained.

Yang Congyi's main task when he returned to Lin'an was to recruit talents, and they needed young people who could read and write, and even more so, craftsmen who were proficient in manufacturing.

There are two ways to recruit, one is to widely distribute recruitment notices, targeting Lin'an and the surrounding state capitals of Lin'an, with good treatment, and there is no quota limit for personnel, as long as they are literate and literate. Another way is to recruit craftsmen, he used to work in the western workshop, which is somewhat related, and it is still very easy to find some craftsmen.

A month later, he left Lin'an and returned to Yi, and took more than 200 recruited people to the south by boat and returned to Liuqiu.

After consulting with Shen Jin and Yang Siniang, they set up a "manufacturing institute" near the camp of the Jingwu Army, specializing in the study of some equipment and materials needed to manufacture the fleet, and transform the ordnance used by the Jingwu Army to adapt to the battle at sea, in addition to cultivating all kinds of talents needed by the fleet.

The president of the "Building Institute" has two paintings, which are served by Yang Congyi, Shen Jin, and Yang Siniang, respectively, and there are three institutes: the industrial office, the commercial office, and the intermediary. Shen Jin led the "Industrial Institute", Yang Siniang led the "Commercial Institute", and Yang Congyi led the "Intermediate Institute", and the three of them were professors in each school.

All kinds of personnel recruited and selected from the Lin'an, Jingwu Army, and Escort Army were all assigned to the three institutes, of which the "industrial office" was the largest, with more than 200 people, followed by the "commercial office", and the "intersectional office" was the last.

At the beginning of the establishment of the "institute", there was no clear goal for each institute to do, but Yang Congyi insisted that it was very necessary to establish a "institute".

Yang Siniang's "business office" first learned arithmetic, and then taught how to keep accounts and how to check accounts.

Yang Congyi's "room" first taught the art of war, and then read and draw pictures.

Shen Jin's "workshop" is the most complicated, because there are the most people, there are many categories, and most of them are craftsmen with craftsmanship, Shen Jin, as a professor, can't teach them much at all, at most arrange some manufacturing tasks and improvement directions for them, fortunately, he has been through most of the things recorded in the "Dream Creek Writings" over the years, as long as it is the improvement suggestions he put forward, the craftsmen with exquisite craftsmanship can basically not refute, after the experiment, the craftsmen will know that what Lord Shen said is right.

There are many people in the "Gongji", such as shipbuilding, car building, bow making, arrow making, knife casting, sword casting, as well as manufacturing earth-shaking thunder and rockets, and porcelain firing.

Yang Congyi did not interfere or participate in the research and manufacturing affairs of the "Gongji", and only put forward a few requirements.

One is to fire transparent lenses. That kind of thing, Shen Jin had seen it when he first went to sea and returned to Yi, and he said that he was helping to study and burn, but he had not been able to do so, but now he has set up a "workshop", and there are craftsmen and time, and it should not be a problem to fire it.

The second is to burn the marl, and the final effect is to shape the sand. This is a new thing, no one has ever seen it, about how to burn, Yang Congyi only gave a relatively simple way, find limestone, burn it directly, and then grind it into powder, and add some gypsum, in general, how to burn it, you can do experiments, and study slowly.

The third is to cast a musket, Yang Congyi told Shen Jin and the firearms craftsman that the inspiration for the musket came from fireworks, since * can fly into the sky and become a beautiful firework, why can't it fly out and hit people? Casting muskets is divided into two stages, you can first experiment with a coarse bamboo tube, put * at the back end, put marbles at the front end, and after the experiment is successful, you can replace the bamboo tube with iron, if you can hit a hundred zhang away, there is a certain lethality, and the musket casting is successful.

The fourth is to study the thrusters of sea vessels, which can still make sea ships walk freely when there is no wind or headwind. It was not easy to explain this thing to Shen Jin, so Yang Congyi invited him to watch two experiments.

One experiment was to install a hand-cranked propeller at the stern of a small boat less than two zhang long, which Yang Congyi had make woodcutters use, and when he rocked the propeller to the right, the boat began to move back and forth when he slid the oars every month, and when he shook the propeller to the left, he disembarked and began to slowly retreat. Through this experiment, Shen Jin showed the propeller a thing that can replace the long oar, making it possible for a propeller at the stern to replace several long oars on the ship.

Another experiment is the copper kettle boiling water, Yang Congyi sealed the spout, and then boiled the water, and when the water in the pot boiled, the steam in the pot lifted the lid, when he covered the lid, there was a stone pressed on it, and the steam in the kettle lifted the stone and the lid together, no matter how many times he put it on, and even put more stones on the lid, as long as the fire was burning, the water in the pot was enough, and the lid still could not be pressed.

For this experiment, Yang Congyi explained to Shen Jin that the power to lift the lid comes from the fire, and as long as the fire is not extinguished, the hot air in the pot can keep lifting the lid until the fire is extinguished, or the water in the pot is boiled dry.

Then he discussed with Shen Jin, if this power is used on a propeller that can be shaken, as long as the power is large enough, it can make the big ship run, whether there is wind or no wind or headwind, it is the same, so that the fleet can not be restricted by the wind direction, and it will be much more convenient to travel from south to north.

This idea was too new to Shen Jin, and in his opinion, even if the steam lifted the lid with enough force, a small copper kettle could not shake the ship.

When he saw Yang Congyi take out a painting, he immediately understood, because the boat and the copper kettle on the painting showed that the pot was very large. Such a large pot, once boiled, the power of the steam must be very large, then it becomes possible to push the propeller.

But then, he had another question, how to direct the force to lift the lid to the propeller?

For this problem, Yang Congyi then demonstrated to him the principle of lever, telling him that the force to lift the lid can be applied to the propeller with a lever, as long as the three settings are reasonable, the thruster of the sea ship can be built.

It took Shen Jin a while to slowly figure out the thing that Yang Congyi asked to build, and finally he understood that the thruster had to be an iron thing, so it would be very troublesome to build.

But for the thruster, Yang Congyi is not in a hurry to let him build it, you can study it slowly, start from a small one, can push the boat, and then consider building a larger thruster, in short, to think, accumulate more experience.

Yang Congyi had no time limit for the four requirements put forward by the "Gongsuo", and clearly told them that they could study it slowly.

However, Shen Jin and many craftsmen did not think so, since they had put forward clear requirements, it showed that these things were very important to the Huiyi fleet, and the sooner they were made, the better.

Yang Congyi allocated a lot of money to the "Gongsuo", and some materials that could not be bought with money were either brought from Lin'an in advance, or he personally returned to Quanzhou to coordinate the allocation.

In view of this, Shen Jin allocated most of the manpower of the entire "workshop" to the firing of lenses, the burning of plaster, the casting of muskets and the development of propellers, and put forward clear requirements for them, and every month must have progress and results.

Since March, the entire Liuqiu camp, from the "courtyard" to the Jingwu military camp, and then to the camp and horse farm, are in full swing everywhere, all riveting energy, to prepare for the second half of the year, no one wants to lag behind, backward will lose the opportunity to marry a bride in the stream, no one wants to give up this opportunity, after all, it doesn't cost money to marry a wife, and it will be arranged by returning to Yi!

At the end of August, the Hui Yi Department brought 4,000 men from Liuqiu to the port of Quanzhou to receive sixty brand-new sea ships, each larger than the previous ones, in addition to fifteen sturdy warships and a huge Shenzhou.

Lu You has come to Quanzhou early, and will take over dozens of literate young people trained by the "business office", and in the future, the cargo delivery audit of the fleet will be handed over to them to do.

Since the beginning of September, the procurement of goods purchased by the exchange office has rushed to Quanzhou Outer Port for delivery, by Yang Siniang personally trained by the group of young people, under the leadership of Lu You quickly put into the goods to receive and audit, although there are occasional mistakes, and they are not punished too much, according to Yang Congyi's words, mistakes in the learning stage, it is nothing, and the mistake now is to not make mistakes in the future.

Half a month later, they were already handy in receiving the goods sent by the merchants, and the accounts were also remembered clearly.

The size of the fleet is half smaller, and the busyness of the port is also reduced, with Lu You, Luo Cong, Pan Cheng and others in the port, Yang Congyi basically does not have to interfere, but only occasionally goes to the port to take a look and solve some problems that they can't solve, and this kind of problem is very rare.

At the end of September, Yang Congyi left Quanzhou with a team of elite troops and went straight to Lin'an.