Sure enough, from the fourth floor, there is an area involving navigation technology, but Zhang Hongbin does not have an outlet to the sea, so it does not appear.

Now the amount of consumption he has saved is completely enough to open these two areas, so he did not hesitate and directly opened the two unknown areas.

With a shock, Zhang Hongbin knew that a new area had opened.

I couldn't wait to come to the fourth floor, but I didn't see any related boats here. Instead, I saw a lot of parts and drawings that seemed to involve the ship's branches, and even some related library materials.

"Shopping guide, what's going on? Why, there are no ships in this area? Zhang Hongbin asked.

"The ship is too big, unless you want that kind of dinghy-level storage, do you think the ocean-going ship will be in the supermarket entirely? In addition, after the consideration of the Chamber of Commerce, the complete ocean-going vessel will not appear in the product list, and the only thing that can be sold is these materials and technologies. Anyway, as long as you have enough materials and drawings, with the craftsmen you have at hand, it shouldn't be difficult to assemble, right? The shopping guide gave the answer.

"Why don't you just give it whole?" Zhang Hongbin hasn't figured it out yet.

"Because of the failure rate, the transmission of goods in our system needs to be affected by the laws of the space-time plane, and the more advanced things are, the higher the probability of failure rate. Ship branches manufactured under the fourth and fifth layers, or even higher levels of technology, will have a certain failure rate, and it will be higher and higher. Some of these failure rates are not obvious and seem to be fine, but after sailing more than 100 nautical miles, maybe the whole ship will fall apart. Will you be confident to buy such a ship, and if there is a problem with the purchase, you will not complain about our chamber of commerce? In consideration of the reputation of the Chamber of Commerce, as well as the humanitarian aspect, the Chamber of Commerce has discussed and will not directly sell the entire ship. But at the same time, all raw materials, drawings and materials will be marked at a very high price. The shopping guide gave the answer, which made Zhang Hongbin have to be convinced.

Indeed, he didn't want to buy an ocean-going ship with a lot of money, but it would be destroyed directly in the middle of the drive, and not only would the material costs not be able to be earned, but the passengers and materials on it would also be unable to be recovered.

Compared with this, the increase in material costs and technical costs is at least within the scope of their own acceptance.

chose to compromise, Zhang Hongbin naturally wanted to check what kind of ships the fourth and fifth floors provided for him.

Four floors, there are only two drawings here, one is the improved version of the Ming Fu ship, which not only uses the fusiform hull commonly used in Western ocean-going ships, but also increases the sails and masts. At the same time, the artillery holes on both sides have also been specially renovated, so that their combat effectiveness has also been highly improved; The second is a Manila galleon built by Chinese craftsmen hired by the Spaniards in Manila, and it is also a modified version. According to the design drawings, the new Manila galleon can sail more smoothly, and the overall stability is also higher, and the resistance to storms has been significantly improved.

Zhang Hongbin is an authentic ship blind, naturally he can't see the advantages and disadvantages of these two design drawings, he only knows that the drawings are written with the words 'improved version', which means that this is stronger than the original.

Well, the drawings or something, just leave it to the craftsmen to look at. He is now more concerned about how much the relevant materials and materials will cost. The reason is simple, he found that these drawings were all partial drawings, and it took more than 30 sheets to form a complete ship structure drawing. The price of each one is five hundred taels of silver, in other words, the cost of one ship's drawings alone is more than fifteen thousand taels of silver, and two copies are thirty thousand taels of silver.

Drawings are like this, and materials and materials are even cheaper. The information is very thin, and it is divided into upper and lower volumes, and each book costs five hundred taels of silver. This information is about how to navigate the seas, how to observe the stars and how to orient themselves...... Anyway, they are the most basic points of ocean navigation. And this is the most scarce thing for Zhang Hongbin, and even if he is only afraid of Zheng Zhilong, he does not have such systematic knowledge.

Also, training a navy will not be feasible for several years, and even if there are high-level ships to support them, it will be in vain if they can't play it. The crew relied not so much on theoretical knowledge as on practical experience. However, it is not denied that without theoretical knowledge, it is not possible to quickly accumulate experience in the early stage. With this information, it is possible to speed up the training of crew members and reduce the time it takes for them to adapt to ocean voyages.

and fifty thousand taels of silver...... No wonder they all say that the navy is a gold-swallowing beast...... In other words, this kind of cumulative consumption is not bad, but the real silver is really not enough to consume like this.

Finally, the material, fortunately, there is no change too much, just a little calculation of the cost, Zhang Hongbin suddenly found that an improved Fu ship, at least 70,000 taels of silver cost, this is still the material cost has not risen too much, and he has a discount on the case; The cost of a Manila galleon also reached 50,000 taels, just because its combat effectiveness was still better than that of the improved Fufu.

A fleet of more than 50 ships, and no less than 20 ships. In other words, the highest can be as high as 3.5 million taels of silver, and as low as 1,000,000 taels of silver. Of course, this is not counting the cost of workers and transportation, after all, these materials are taken out, and they still need to be assembled by someone, and if there is a mistake in processing halfway, it will be a sum of silver.

It is said that luxury goods are expensive, Zhang Hongbin knows it, but in fact, nothing is as expensive as the navy. Not to mention the price of the building, it also needs daily maintenance, so if there is no huge trading route to support the sufficient cost, I am afraid that the average small country really cannot afford to play a large ocean-going fleet.

Seriously, after watching the fourth layer, Zhang Hongbin didn't even have the guts to look at the situation on the fifth floor.

Even if the things sold on the fourth floor, he can basically raise an ocean-going fleet of thirty ships by relying on the current financial revenue and territorial tax situation.

But really, he was really curious about what kind of ship would appear on the fifth floor. Even if it was to see, he wanted to see what kind of surprise it was. Therefore, he slowly came to the fifth layer and entered the nautical area.

Two copies of the drawings, the price far exceeded the fourth floor, adding up to more than 100,000 taels of silver. But it's also worth the money, after all, the first ship was the design drawings of a giant clipper, which is huge and super fast, and it is completely the fastest sailing ship in the sailing era, even Zhang Hongbin has heard of it. In terms of speed alone, the clippers surpassed the improved Fukubune and Manila galleons. Not to mention the word 'large', which expresses its powerful load and firepower;

The second ship was even better, and it was actually a large steam iron-hulled ship. This is a real ironclad battleship, not the kind of wooden-hulled ship with a layer of ironclad on the outside. It is steam-powered, so it does not need sails, but the speed can be equal to or even higher than that of a clipper. What is rare is that it has many gun emplacements, and there is even a main gun directly in front of it, and the barrel and shells are sold on the fifth floor, of course...... There is a failure rate...... But what is certain is that if this steel monster appears on the sea, even the old seafaring empires of Spain and Portugal, as well as the emerging seafaring empire of Britain, will have to submit to it.

No more, three clippers and three steamships will do, and a fleet formed in this way will sweep across the four oceans!

But in terms of cost...... Seriously, Zhang Hongbin is already a little scared.

There are also many books, many books on the key points of sea navigation, including how to avoid the wind at sea, how to predict the arrival of storms, how to avoid rocking and disease, how to keep sailors from getting sick in the middle of the sea, and so on. Of course, there are also materials on various naval battles, as well as detailed descriptions of artillery battles, and so on. One set costs 300,000 taels of silver...... It's really more than grabbing money!

Material Costs...... Zhang Hongbin glanced at it, and then closed his eyes.

At least more than 200,000 taels of silver to be able to build a clipper ship; If it's a steamship, I'm afraid it won't be able to build it without 300,000 taels. The most important thing is that the bow gun has a failure rate, and the price is also very high, in case you buy a faulty cargo, it is really a loss.

According to his original plan, the equipping of six ships would cost at least 1.5 million taels of silver. Well, it's a good deal compared to a fleet of fifty four-story ships. But others are fifty ships, and here it is only the cost of six......

Zhang Hongbin began to hesitate at this moment, should he directly build twenty medium-sized ships and use them first? Or would it be better to build six large ships first?

Spending more than one million taels of silver, I'm afraid even the Congress will hesitate, right?

"Forget it, the port hasn't been built yet, I'm in a hurry!" Zhang Hongbin gritted his teeth and withdrew from the system.

Of course, he bought a copy of all the books and drawings, and these things naturally would not be his own expenses, but would be reported to Congress and counted in the financial expenditure. In order to better mobilize their determination to make great voyages, Zhang Hongbin will attach information on various local products from the South Seas, Australia and the Americas, and even the distribution locations of some minerals, etc., and when the time comes, they will know how to choose.

The consumption amount instantly increased by 480,000 taels of silver, and the progress bar of the upgrade instantly increased by a small cut...... The kind that is super huge, and ordinary people really can't afford to consume it.

The next day, Zhang Hongbin took the drawings and books to the Congress, and of course the information attached to them.

Not to mention whether the drawings and books are precious, after receiving the information, the eyes of the congressmen were just as Zhang Hongbin thought, and then burst out with a strong light. If you give the most intuitive feeling, everyone's eyes have become a '¥' size.

But like Zhang Hongbin, when he saw the strong cost and the estimated maintenance fee, everyone was immediately 'embarrassed' again.

Many people looked at He Ling, and He Ling looked at Zhang Hongbin again, confirming that Zhang Hongbin was playing for real, and considering the treasures scattered all over the place......

The Congress passed a procurement plan and reimbursed the 480,000 taels of silver!