The medical officer checked Yu Xiaotian's pulse every day, constantly adjusted his diet, and used dietary therapy and decoction to nourish his body.

And Lan'er and Xiu'er also tried their best every day to make good food for Yu Xiaotian to recuperate, and Yu Xiaotian gradually recovered.

With Yu Xiaotian's gradual recovery, the Seawolf Group stabilized again.

In the past month or so, there has been an undercurrent inside the sea wolf, many people are worried about Yu Xiaotian's life, and some people inevitably begin to think about what they should do in the future if Yu Xiaotian dies unexpectedly.

In fact, when Yu Xiaotian was seriously injured, there were already a lot of thoughts inside the sea wolf, and some people thought that even if Yu Xiaotian was unexpected, if he left, they would embrace Yu Xiaotian's son and continue to work.

But Yu Xiaotian's son Yu Zhenhua is only half a year old now, it is not very easy for people to grow from children to adults in this era, if Yu Zhenhua is a little older, this matter is better to say, now this little guy is still in swaddling clothes, is breastfeeding, and wants to help him out as a big helmsman, some people are naturally not very happy about this matter.

And if Yu Zhenhua, the little guy, is put on the throne, he must be just a puppet, and the real power can only be someone else, and the one who put forward this idea is naturally Liu Laoliu, Liu Laoliu is Yu Xiaotian's father-in-law, or Yu Zhenhua's grandfather, and the master of the torture hall.

But some people are naturally not convinced that Liu Lao Liu is in power, because although Liu Lao Liu is a good person, he is also dedicated to being the master of the torture hall, and a bowl of water is also served flat, and he is very popular, but Liu Lao Liu is a little older after all, and his vision is not wide enough, he is too conservative, and under his leadership, God knows where Lu Dao will go.

And some of the young Zhuang faction are more ambitious, when they follow Yu Xiaotian, Yu Xiaotian presses them, and it can bring them a victory, and a brighter and brighter future, so they are very relieved.

But once Yu Xiaotian is gone, then these people will no longer be as relieved as before, and this cannot be blamed for their disloyalty, but people are selfish animals, when a group has problems, it is natural for people to have their own ambitions, and these people no longer want to obey Liu Laoliu's arrangements and orders.

Therefore, during Yu Xiaotian's serious injury, there were various sounds and undercurrents inside the waves, which was also inevitable, but all these undercurrents, as Yu Xiaotian gradually got out of the danger period and gradually began to recover, suddenly disappeared, because as the soul of the sea wolf, after returning to the peak of power, everyone automatically returned to the original track.

When Yu Xiaotian recovered, he also learned about these things from Liu Laoliu, but he laughed it off, and did not pursue anyone because of this, let alone expand the matter.

As him, of course, he hopes to pass on something to his children after his death, but at present, Zhenhua and Yuxin (Xiu'er's daughter, named Yuxin by Yu Xiaotian) are still young, and it is obvious that his big plate is passed on to Zhenhua, which is obviously not what he wants.

It is impossible for Zhenhua to take over such a big plate at such a young age, and the power will naturally fall into the hands of Liu Laoliu, and although Zhenhua is Liu Laoliu's grandson, but people are selfish, with Liu Wang, Liu Laoliu will hand over power to Liu Wang sooner or later, and Xiao Zhenhua is in the hands of Liu Laoliu, at best he is a puppet-like chess piece, and once Liu Laoliu wants to transfer power to Liu Wang in the future, Xiao Zhenhua will become a dangerous person.

At that time, the family relationship may disappear because of this, and eventually there may even be a situation where fathers and sons, brothers, uncles and nephews kill each other like the royal family.

Therefore, in Xiaotian's opinion, if one day he suddenly suffers an accident, he would rather Lan'er and Xiu'er move to a far away place with Zhenhua and Yuxin and live incognito and live incognito, which is better than acting as a puppet here and being in danger.

And he himself as the soul of this group, with him, the sea wolf is the real sea wolf, if he unfortunately encounters an accident, then he is too lazy to care about the things behind him, everyone has their own ambitions, in the future, these people want to do whatever they want, what he wants is that when he is alive, he has absolute control over the group, so that the group can do things for him according to his ideals.

At present, he is quite satisfied with this situation! At least it shows that his position as a sea wolf is unshakable, in this era, if you want to do something, you don't have absolute control over your own strength, it's almost like suicide, and now if you go to talk about bullshit democracy with people, unless you are kicked in the head by a donkey!

After Yu Xiaotian gradually recovered, he began to deal with the affairs of the sea wolf again, during his serious injury, many things of the sea wolf came to a standstill, but many of the affairs he had arranged before were still going on normally.

First of all, during his serious injury, the old Dafu ship of Chu Cai was renovated in the Nanri Island shipyard, and now it has been completed, and the ship has basically reached Yu Xiaotian's original idea of transformation, and a gun compartment has been opened on the lower deck, which has greatly improved the artillery carrying capacity of this ship, making it a gun ship with the strongest firepower of a sea wolf.

Moreover, the rudder operation mechanism of this ship has been improved, and the previous rudder operation mode has been changed to the steering wheel operation mode, which has greatly improved the flexibility of the ship and made the operation much simpler.

In addition, some changes have been made to the sail installation, replacing the previous bulky rudder lifting mechanism with a pulley block, making it much less labor-saving to lift the sail, in the past, it takes five or six people to lift a sail, and at least three people are required to pull the wooden winch to complete the lifting of the sail, and now only two people are needed, and even in an emergency, one person can lift the sail, including the artificial winch has also been improved, and the wheel structure is installed.

When the sail must be dropped urgently, the sail rope was cut off with a knife and axe in the past, and the sail fell from the mast with a bang, which is fast, but when you want to raise the sail again, it will be a big trouble, you must send someone to climb the mast again, pick up the sail rope, and rearrange the sail rope, but after improving the winch, you only need to knock on the wheel, and the sail can be lowered as quickly, and it will not affect the sail rope, when you need to raise the sail, you only need to reset the wheel and pull the winch again, It's easy to set sail.

In addition, the age of this ship is still young and can be used for a long time, but the problem of long-term immersion in seawater, maggot mowing on the hull and marine life adhering to the bottom of the ship will seriously affect the service life of the ship, and may even cause the ship to disintegrate at sea.

Therefore, after thinking about it again, Yu Xiaotian decided to coat the bottom waterline of this ship with a layer of copper, this kind of problem is currently a headache in the navies of all parts of the world, including merchant ships, so people have also thought of a lot of ways to solve this problem.

In some places, the bottom of the ship is painted with wood tar or soaked in poison, but it is not an effective solution, the most effective way is to soak the boat into the freshwater river for some days at intervals, but it is very troublesome to do so, and the sea ship sometimes has to operate at sea for a long time, and there is no chance to sail into the freshwater river, so these methods are not very useful.

Later, the British came up with a way to cover all their warships with a layer of copper skin on the bottom of the ship, so as to solve the problem of maggots eroding the ship's board, but the cost is a little too high, after all, copper is a precious metal in this era, including later generations are not cheap, it is a hard currency that can be directly used for circulation, and it consumes a lot of copper to cover the bottom of the ship, and ordinary people really can't afford it.

But this is not a big problem for the sea wolf, only a few ships are wrapped, because the sea wolf now basically uses pig iron for casting cannons, so in the past few years, through robbery and seizure, there are still a lot of purchases, and a lot of copper is stored.

These copper materials have been re-refined by the Filial Piety Mandate coppersmiths, and the Japanese red copper purchased through various channels has a considerable silver content in itself, and the silver is refined after refining, in addition to obtaining copper, it has also obtained a lot of silver, copper as a strategic reserve, naturally a large number of storage, and now it is enough to take a part of the cover of the ship's bottom, so when the ship was dragged into the dock, the other side began to build copper skin.

The copper skin is mainly to prevent sea maggots and sea creatures, and its practical effect is not too thick, only a thin layer is needed, so the thinner the copper skin, the better.

If the copper plate is made by hand, it is obviously a lot of waste, after all, the thickness of the copper plate made by hand is too large, in addition to a lot of waste of raw materials, it also adds a lot of dead weight to the ship.

Therefore, Yu Xiaotian did not plan to let all the people manually make copper plates, but decided to get a simple trigger to roll the copper skin, so that the thickness of the rolled copper skin is uniform, and it can be made thinner, which can save a lot of copper material and reduce the dead weight of the ship.

But now to get a set of rolling mills, for the seawolf industry, it is still a little too difficult, the roll must be hard, in the absence of high-carbon steel, can only use pig iron to cast, casting this problem is not too big, the key is still in the transmission mechanism, especially gear manufacturing.

Gears don't look simple, in fact, there is a very high technical content of things, with the current technology of the sea wolf, if you want to produce enough strong gears, for the time being, whether they are machining ability, or the technical ability of workers, including materials, it is very solved.

After brainstorming and thinking of many methods, it was finally decided to make it of extremely hard ironwood, but it was not called a gear, but a transmission mechanism similar to a water mill.