Precision, economy, is the future of the Navy and Navy, some things, seem inconspicuous, but in fact, to use, but very useful.

Completely different from the extensive supply method, Zhao Xin will reduce the amount to the extreme for ocean-going ships from the very beginning, and reduce the waste as much as possible, so as to increase the endurance.

No one dares to guarantee that there will be no huge wind and waves, even if the sea ships of the Dinghai Navy are advanced enough to survive in the wind and waves, but after losing the voyage or some measurement measures, can they still survive.

This cannot be guaranteed even in the 21st century, let alone in East Asia in the 11th century.

Under the premise of being isolated and not seeing any land, what can guarantee a person's survival is these supplies, and sometimes, one more day of life can make people desperate, let alone live for many more days.

Compressed biscuits, as well as various types of water, are even more readily available than food.

Overseas, as long as you find land, as long as it is not the kind of island that is all mud and sand and does not have the slightest fresh water, basically there is fresh water, and even on the ship, you can set some special things, you can also catch the rainwater that rains, and even in extreme conditions, you can use distillation to get water.

The boat is made of wood, not that fire cannot be used, using the coke of the ironworks, you can use a relatively small volume, get enough heat, and the ship itself is also to cook, load a part of the coke, at a critical moment, you can boil seawater to get fresh water, at a critical moment, it can save lives.

Drinking water and food, which is the most important part of the sea, is not a problem to solve their survival, but there is another problem, which must be solved.

This problem did not exist before the first voyages, or even ocean voyages, across the oceans, but it arose when the voyages went deeper and the great geographical discoveries went deeper.

Scurvy, a terrifying disease in the 189th century, was the first killer to kill sailors, and almost every sailor dared not stand up to the call of death.

In the age of sailing, almost 50 percent of the deaths of sailors were attributed to various diseases, but among such diseases, the number one killer was scurvy.

In the Atlantic route, and in the early Pacific route, the death rate was as high as eighty or ninety percent in the beginning, and sometimes, a ship almost died when it arrived at its destination.

There are also many people on the route, who have not yet reached their destination, and the entire ship is dead.

The symptoms of scurvy are bleeding spots on the whole body, bleeding from the mouth, nose, eyes, ears and other organs, loose and falling out of teeth, depressed mood, and then death.

Until the mid-18th century, long voyages led to the death of large numbers of seafarers, and this high mortality rate was seen as an unavoidable cost.

It took almost 350 years in Europe to find the cause of scurvy, and countless deaths finally proved that this symptom could be overcome, and finally went to the age of the deep sea, but in the East, the disease was restrained very early.

This terrible disease, known as the curse of the devil, has never been a problem for the Orientals, and a very simple way is to bring a batch of mung beans.

Mung beans are easy to carry and easy to preserve, as long as they are kept dry, they can be stored for a long time, up to a year, and are a very nutritious food that can be stored for a long time.

As long as the mung beans are soaked in water, one night, you can get mung bean sprouts, which are not only easy to use, but also fresh and delicious, and can also solve this demon that has plagued the history of navigation for a long time, the reason is very simple, that is, mung bean sprouts are rich in vitamin C.

Vitamins are a trace element that maintains the balance of human growth, since it is a trace element, that is, the body's needs are very small, or as long as it is about the same, in a short time, there will be no major problems.

Ordinary trace elements are found in the daily diet, and people who are generally not picky eaters will not make such a problem, and they have not attracted much attention, only some extreme cases, for example, can be picky eaters, the kind that does not get tired of eating, and most of them are diagnosed and treated as other diseases, and are not systematized.

Scurvy, to put it bluntly, is a deficiency of vitamin C, which is actually widely found in a variety of foods, such as green vegetables, fruits, fungi, and other foods, most of which are rich in vitamin C.

This kind of thing, generally in daily life, will not be lacking, do not eat vegetables, always order mushrooms, do not eat fruits, always eat some vegetables, as long as you do not eat for a long time, there will be no problem.

However, after the advent of the Age of Sail, there was a problem, and the sailors, when they were on the ocean, were on board for a long time, and they could not be replenished without docking.

You know, in the era when there is no vitamin C, fresh fruits and vegetables can't hold up at all, even if it's lemons, dried can be preserved, but it's easy to get lost.

At first, the ship's performance was not good, and it was only able to sail close to the coastline, at most it was two or three days away, and there was a temporary docking point, which was no problem, but once it went deep into the Atlantic, to the New World, this extreme situation began to appear on a large scale.

Other vitamin deficiencies, or rather, are not too important and have little impact, but vitamin C deficiency is very scary.

Europe, in order to overcome scurvy, has invested great efforts, you know, training a seaman, it is not easy, from a young age, but also on the ship to actually operate, but a voyage to the ocean, depending on the distance and the degree of difficulty, less than three or four, more than a dozen, dozens, this is also a constraint on the development of the navigation industry.

Many methods were thought of, but in the end, a captain named Cook solved the problem, using lemon juice and some plant-based fruit beer, and after preparing these, he regularly provided some to the seafarers, and actually on a long voyage, not a single sailor died.

Because of this beer, the captain became famous, and for a long time, many people came to him specifically to buy this panacea, which can cure scurvy.

This is a panacea for the age of sail, but they are too inconvenient, a liter of beer, how many vitamins are contained, to supply the whole ship to eat, how much beer, under the premise of no way to solve, in order to ensure that the seafarers survive, they have to pinch their noses and admit it, but if there is a better choice, who will choose this.

Scurvy mostly appears in the West, one reason is that after the Renaissance, the European maritime civilization was particularly developed, and after the great geographical discovery, it was even more across the seven seas, and this problem was encountered.

Although the East started at about the same time as the West, in the Renaissance era, Zheng He of the East went to the West almost at the same time.

The origin of the Renaissance is Dante, but the era of the Renaissance flourished in the 14th century, but the real European Age of Discovery began in the 15th century and continued until the 17th century.

That is to say, in a sense, the civilizations of the East and the West, in navigation, have taken a similar path, but the difference in science and technology, Europe is in the Mediterranean Sea and the Atlantic, where the wind and waves are bigger, it must be more suitable for sea ships, but the East is located in the Pacific Ocean, the whole earth, the calmest ocean, itself is named after Taiping, and the two sides have embarked on a completely different path.

However, scurvy rarely appears on Chinese sea vessels in the limited voyages, like Zheng He, tens of thousands of people travel thousands of miles away, and that is even more so, one of the fundamental reasons is the small bean sprouts.

A barrel of beer contains vitamins and mung bean sprouts soaked in water, which cannot be compared at all, and a small pinch of bean sprouts, which contains vitamins, will explode beer.

Even in a sense, not to mention the comparison between bean sprouts and beer, just a performance suitable for carrying, bean sprouts don't know how much beer they have finished.

Beer, especially fresh beer, is the only beer that is rich in vitamins, and once it has been processed, it can be stored for a long time, and it is easy to lose vitamins.

However, mung beans, as long as they are dried, can be stored for a long time, and can be kept for more than a year under suitable temperature and ventilation conditions.

A solid, a liquid, easy to carry or not, at a glance, not to mention, bean sprouts are easy to use, as long as the day in advance, the sprouts are soaked out, after a fixed step, you can grow and sprout overnight, to the extent that you can use it, the same, under this premise, vitamin C, a lot of quantity, is also very convenient to use.

However, with the passage of time, beer will change, ranging from the loss of vitamins and the loss of effect, to the production of toxins, which threatens health.

In the East, mung bean sprouts are common food, perhaps, when Zheng He was in the time, he didn't realize why mung bean sprouts could prevent it, and he didn't even realize it, but for Zhao Xin, the era of information development brought such benefits, and he directly added a large amount of mung beans to the supply, even if the people on the ship ate it every day, there was no problem.

With more concentrated food, plus ballast water, these, as long as they are well sealed, can be used, in this case, the supply of the entire fleet will be two or three times higher than before, and similarly, there will be no threat of scurvy, this is the software, hardware and software of the whole navigation, what else can stop the voyage of the navy.

Not to mention, there really is, no matter how good the hardware is, no matter how good the software, in the absence of a suitable operator, these hardware and software, no matter how good they are, cannot force the overall situation.

Zhao Xin, even taking this aspect into account, not only recruited a large number of crew sailors to prepare for the future, but also prepared to train.

You know, the soft sail is far more difficult to handle than the hard sail, different angles, different opening methods, plus some unique controls.

Above the sea, the soft sail is more forceful and can provide enough kinetic energy to the boat, but at critical moments, it also requires more physical strength to raise and lower the sail.

In the era of sail warships, a large enough ship, not to mention the setting of force, the number of simple sailors was very large, not to mention the military role, it would also be equipped with gun emplacements, and even enough soldiers were arranged on the deck.

At the peak of the sail fleet, in the era of Spanish galleons, at the beginning, it was 1 tonnage corresponding to one person, and then gradually developed, at its peak, it was about 5.5 to 6.5 tons per person.

In this case, a 300-ton ocean-going sailing ship will probably use about 60 people, and if it is wartime, this figure will be increased, take the 500-ton Spanish galleon, generally speaking, on the deck, there will be 125 soldiers.

However, after some design, one of the core aspects of these designs is to reduce the consumption of human power, and to use some auxiliary devices, pulleys and the like, on the sails, rather than simply, just pulling up and down, which can save a lot of manpower.

The quantity of supplies has a lot to do with the supplies and the number of personnel, as long as some key positions are reduced, for example, more excellent telescopes and large telescopes, the number of lookout personnel can be reduced, so that under the premise, some necessary personnel can be reduced a lot.

A 60-person one, with a 30-person one, in the era of sails, the mileage of the endurance has almost doubled, not to mention, Zhao Xin, who came out of later generations, almost every tonnage, every area, has been applied to the extreme, in this case,

The same tonnage, compared to those ships, can accommodate a larger tonnage, the most important thing is strength, the keel of the Dinghai Navy at this moment, is gradually adjusted, especially the detection of the card system used by Zhao Xin, not only durability, but also very good performance.

The higher the strength, plus the reduction of some unsuitable places. You must know that in the era of the sail fleet, the issue of tonnage-to-efficiency ratio has not been taken into account, it was in the era of ironclad ships, which was gradually proposed.

However, with the experience of later generations, shipbuilding is not for the sake of good looks, but for efficiency, all unnecessary places have been removed, and some places that can be strengthened and reduced have been reduced.

For example, the mast, the general mast, are made of giant wood, this kind of mast is very few, and there will be problems in treatment and construction, but after adjustment and design, the steel is used on the mast, and the mast is connected to the keel of the ship's theme, and in the end, the strength is greatly improved, perhaps, a mast composed of steel, will increase a lot of tonnage, but in fact, the overall effect will be improved a lot.