This time, it is necessary to make it clear that warships are warships, and merchant ships and cargo ships are specialized in business and cargo operations, and try to develop the naval division into a navy.

Seeing that the time was ripe, Wang Hongyu included Galen, Karak, and Caravel among medium-sized warships of less than 1,000 tons.

In addition to the above-mentioned medium warships, new cruisers of the fifth and sixth ranks were built.

Class 5 and 6 ships, also known as cruisers, have a tonnage of less than 800 tons, have 24 to 40 guns, all arranged on one deck, fast speed, and maneuverability. Responsible for reconnaissance, harassment, and guarding merchant ships, they are the "coolies" in the fleet, and they have to do all the dirty work.

In addition, large warships of more than 1,000 tons were built, that is, sail battleships.

The large battleship was a further improved version of the Galen battleship, with a U-shaped hull and a U-shaped mouth that shrank inward, so that the width at the waterline was greater than the width of the upper deck, and the keel was encrypted, with a rib structure that was inherently set, and a multi-layer interconnected deck, and a watertight cabin structure was abandoned.

Make several levels.

Fourth-class ships are large double-deck ships, 1,000-1,500 tons, with 300 to 500 seafarers. It carries more than 40 to 60 heavy naval guns.

This kind of battleship is a little larger than Galen, and the advantage is not very great, so it is not used as the main force of the fleet for the time being, but it is not necessary to use a larger warship to cruise the waters of Goryeo and Wakoku, and it is enough to use a fourth-class ship.

The third class ship has only two decks, a tonnage of 1,300 to 1,800 tons, and is equipped with 500 to 700 seafarers. Armed with 64 to 80 guns, it is used as the main force due to its more balanced firepower and flexibility.

There is no need to build the first and second levels for the time being, and at present, only Ace Plate Duck may have a few warships of this size, but do not fight with them for the time being, and at the same time, two third-level ships are enough to defeat a second-level ship, so the priority is the third-level sail battleship.

In terms of merchant ships, new types of merchant ships should also be built.

At present, combined with the freight advantages of Guangzhou Shipyard and Fuchuan Ship, the sail structure is transformed, and the small hard sail is replaced by a huge soft sail.

Speed and sea freight capacity have been improved, and freight advantages and ease of construction have been retained.

It can be used as the main ship type of the direct cargo fleet.

In order to expand the storage space, the cargo ship still adopts the watertight cabin structure inherited from China. The newly built large warships adopt a rib structure with keel encryption sets, multi-layer interconnected decks, and abandon the small watertight cabin structure.

Fu ship and Guangzhou ship both use watertight cabins, which have large cavities and good loading effect, but there is no solid multi-layer plywood, so heavy artillery cannot be placed except for the top layer.

Now the new large sail strategic ship built by Wang Hongyu has canceled the watertight cabin, the rib structure of the keel encryption set, and the multi-layer interconnected deck.

These decks run through the hull and are a single unit, so heavy artillery can be placed.

After the keel is encrypted, even if the outer wall of the battleship is penetrated, because the deck is above the waterline, it is easy to block.

Moreover, the shells at this time were all iron eggs, and the impact of smashing into the water was greatly reduced, and it was impossible to break the keel-dense, teak or white oak cabin.

Unless the enemy dives and scuttles the ship, but the warship fights in the sea, and it is not a river near the sea, it is difficult for sailors and frogmen to scuttle the boat in the sea.

As for the underwater part, it is only six feet high, and the lowest floor is the ballast room, which is actually the storage room, and the upper floor is the rest room. Of course, these two floors are still watertight cabin structures, because the keel has increased a lot, the degree of solidity has been greatly increased, and the separation area has become larger.

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A place, otherwise it is impossible to penetrate the side walls.

In the future, it is also possible to design rock wool boards packed with rock wool bags on the outside of the battleship, which greatly reduces the impact of the shells, and the rock wool boards are also laid on the deck, which can not only reduce the impact of the shells, but also prevent fire.

Wang Hongyu also equipped the flowering shells on warships, which were not used in peacetime, and only waited for the decisive battle with the Dutch Navy two years later. Wang Hongyu also added gasoline to the warhead, presumably the Galen ship in the Netherlands was about to turn to ashes.

The wooden battleship is most afraid of fire attack, and Wang Hongyu uses a flowering incendiary bomb that can both explode and burn violently.

The flowering bomb had already been used to quell the rebellion of the Toast of Anbanghiko in Shui, but due to the blockade of information and the processing of myths, no one knows the truth to this day, not even those foreign missionaries.

Wang Hongyu originally planned to use the flowering bomb to deal with Jiannu, but now it seems that the Dutch fleet is ahead of Jiannu, so let the Dutch people enjoy it first. When Jiannu is beaten, it is estimated that the copper cannon bullets should come out, and Jiannu should also enjoy it.

Now that the battleship has been built, it is necessary to use the linear battle tactics of the reason for its name.

This is a completely new tactic.

At this time, the naval battles in the East and the West, like those in the East, were still dominated by melee.

That is, the warships of the two sides are facing each other, and whoever has strong ships and guns will win, and there will be no battle columns and tactics at all.

The Battle of Malacca between the Ming and the Netherlands is an example, with the Dutch ships not even anchoring, and Cai Fuyi using battle and tactics. Wang Hongyu only guided him in advance, and the key to the real victory was Cai Fuyi's intelligence and talent.

Cai Fuyi played on the spot, but the application of battle tactics was beneficial, and his ability to draw inferences from one case exceeded Wang Hongyu's expectations, so the marshal of the Ming Dynasty two years later was none other than Cai Fuyi.

Wang Hongyu knew that the term battle tactics was exactly the naval battle tactics that the Western Navy had explored through actual combat summaries in the "Sail Age" in the following decades or even a hundred years.

The so-called "sail age" of the navy refers to the movement of ships relying entirely or mainly on the power generated by the wind blowing the sails.

After the sails came the age of the steam engine, steam-powered ships overcame their dependence on the wind, and their load-bearing capacity increased rapidly, and warships could be equipped with iron armor and larger caliber modern cannons.

That's the ironclad.

Wang Hongyu has also faintly promoted the preparation of the steam engine, and some experiments have guided Zhu Youxiao to lead people to do it. Outsiders think that Zhu Youxiao is a fun carpenter emperor, but in fact, he is already an engineer emperor.

Maybe the practical steam engine will come from the hands of the Emperor of the Apocalypse, Zhu Youxiao.

For battleships such as Galen, Karak, Caravel and Fukufune, the sail battleships have qualitatively improved in terms of tonnage, strength, and number of guns, and even their tactics have been grounded up.

In the future, compared with sail battleships, ironclad ships will be qualitatively improved in tonnage, defense and artillery, and they will be able to move forward more freely in tactics, and tactics will be a new era.

Wang Hongyu wants to let Huaxia walk in the forefront of the world in these two periods.

Before the invention and popularization of airplanes, whoever ruled the sea ruled the world logistics and transportation pattern.