With funds, Japan repaired some relations with Britain because of China's Southern War, and Britain was willing to provide Japan with design and other technical support, so the Japanese Navy formulated this three-year naval construction plan.

Moreover, this time, Japan decided to rely on its own strength to complete all the warships of this construction plan. On the one hand, it can reduce the construction cost. On the other hand, it also took the opportunity to develop Japan's shipbuilding industry. Japan is an island country and naturally needs a developed shipbuilding industry. After more than 30 years of Meiji Restoration, many shipyards have been built and the supporting facilities are basically complete. But so far, Japan can only build 5,000-ton cruisers by itself. The "Six Six Fleet" built before the Far East War were all warships purchased from foreign countries.

Compared with the East China Government next door, it has only been established for 10 years, and now it has been able to build a 12,000-ton battleship, and basically has fully realized the self-built warships. In fact, the shipbuilding industry of the East China Government can develop so rapidly, on the one hand, thanks to the complete set of shipbuilding and supporting industrial technical equipment transferred from Germany; on the other hand, because the East China Government itself has mastered enough technology, all it lacks is skilled industrial workers and supporting technical equipment. Once these two problems are solved, the shipbuilding industry will naturally develop rapidly.

But Japan cannot wait any longer and must develop its own shipbuilding industry as soon as possible. Fortunately, Britain is willing to support Japan at this time. After all, Britain needs Japan to restrain the East China government, and now the British navy is also facing competition from the German navy. Major shipyards have already arranged orders and are indeed unable to build this batch of warships for Japan. Only 1 or 2 ships can be squeezed out, so they can only transfer a full set of shipbuilding industry technology to Japan so that Japan can fully master the ability to build its own warships.

The warships designed for Japan this time, Satsuma-class and Hanoi-class battleships were designed according to the standards of the dreadnought, with a displacement of about 20,000 tons. According to Japan's requirements, each battleship was designed with 12 305mm main guns, divided into 6 double turrets.

The difference is that the Satsuma class has 6 double-tubes, three at the end of the ship, and are distributed in a "special" shape, so that the Satsuma class has 6 main guns at the beginning and end, and 8 main guns can be used on the side.

The Hanoi class has two turret-mounted twin turrets at the head and tail of the ship, and a double turret is arranged on the middle of the warship. This design is very similar to the main gun layout of the Helgolan-class battleship designed by the East China Government for Germany, but it is also different. The two turrets in the middle of the Helgolan-class battleship are arranged side by side and cannot fire on one side at the same time. The two turrets in the middle of the Hanoi class are staggered, so they can fire on one side at the same time. In this way, the Hanoi class can use 8 main guns in front and back, and 12 main guns can be concentrated on shooting at the side side at the same time, which is quite considerable.

In fact, when designing the Helgolan-class battleship, the East China Government did not consider that the two turrets in the middle were staggered to ensure that they could fire on one side at the same time. However, this is only the theory that 12 main guns can be concentrated on the side of the side, but in reality, the shooting range is very small. Only when it is close to 90 degrees can it be guaranteed that 12 main guns can be concentrated on the side of the side of the side, so the practical value is not high, and it also causes asymmetrical layout of the hull, which increases the difficulty of building accommodating, so this design was abandoned.

In fact, the more artillery on a warship, the better, because a perfect warship must be a balance of firepower, defense and speed. It is not good to over-prominent one. Generally, a warship of about 20,000 tons has the most balanced main gun number, divided into 8-10 pieces, divided into 4-5 turrets. Otherwise, too many main guns will inevitably squeeze out other firepower, or space for defense and speed. What is more than just a turret, but also involves hull reinforcement, ammunition depot design, protection and other designs under the turret, which can move the whole body with one shot.

The Helgolan-class battleship designed by the East China Government for Germany, although it has 12 main guns, the tonnage of this type of battleship has reached 22,000 tons, which has a certain amount of room for tonnage, and the number of secondary guns has been reduced. It is a warship designed to participate in the sea decisive battle of the large fleet rather than to operate alone.

Japan's main purpose of adopting such an extreme design plan is to strengthen the combat effectiveness of a single ship, because even if Japan completes this three-year shipbuilding plan, it only has 6 battleships and 6 armored cruisers. Even if one new warship from the East China Government has not been built in these three years, they now have 17 battleships and 16 armored cruisers. The number of main ships of the two sides is almost 3:1. Although the main ships of the East China Government are older and the ship types are also behind, they are battleships. In addition to the four newly built famous sword-level ships, the other 13 Ji are all former dreadnoughts, but their huge numerical advantage is still unmatched by the Japanese joint fleet in three years.

Moreover, the national strength of Japan and the East China government is very different now. It is basically impossible for Japan to catch up with the East China government in terms of fleet size. Therefore, if you want to compete with the People's Army Navy, you can only work hard to improve the combat effectiveness of a single ship, striving to meet the standards of one ship, two ships, and even one ship, and three ships. So you can only desperately pile artillery on the warship to enhance the combat effectiveness of the warship.

Of course, this kind of sword's approach is also a traditional Japanese skill. Before the Sino-Japanese War of 1894-1895, in order to compete with the Beiyang Navy, Japan installed a 305mm-caliber cannon on the Sanjing Ship, which was only 4,000 tons, on the Sanjing Ship, which was only 4,000 tons, without caring about the huge impact of the giant cannon on the warship when it fired. As a result, these three giant cannons were fired only five times in the Dadonggou Naval Battle, which was completely a decoration.

The Satsuma and Hanoi class adopt different turret arrangements because the load-type turret arrangement is also a new technology for the UK. The biggest advantage of the load-type turret arrangement is to save deck space and give full play to the firepower advantages of all artillery, but the disadvantage is to increase the center of gravity of the warship and affect the stability of the warship. Therefore, the freeboard of the warship must be reduced, but if the freeboard is too low, it will affect the wave resistance of the warship.

The East China government can use computer-assisted calculations to achieve a balance point between the center of gravity and the freeboard ratio. In addition, it can also add shaking fins to the bottom of the warship to maintain the stability of the warship. Therefore, it can boldly use the piggy-type turret arrangement, and at the same time, the piggy-type turret arrangement designed for German warships also use piggy-type turret arrangement.

The UK does not have this condition and can only explore slowly on its own. Therefore, the Neptune-class battleship that was only started last year was only arranged with a load-type turret under the height of the long forecastle structure, while the three turrets at the head of the ship were still arranged on a deck. The Orion-class battleships that were planned to be built this year officially adopted a central axis layout, with a load-type turret design at the front and rear.

When designing warships for Japan, Britain adopted two different turret layout methods, which also tests the effect of different turret layout methods.

The two types of armored cruisers, Tsukubo-class and the saddle-horse, have tonnages between 14,000-15,000 tons. The main gun uses three double turrets, a total of 6 305mm caliber guns, with 2 fronts and 1 rears, but are all arranged on the deck.

This absorbs the design characteristics of the British Invincible Class Battlecruiser and maintains the unified main gun caliber with the battleship. However, since the tonnage of these two types of armored cruisers is relatively small, it cannot be installed with four twin turrets like Invincible Class Battlecruiser, so it can only be second-rate, with three twin turrets installed.

Originally, the two most important design plans for these two types of armored cruisers were the installation of 8 280mm caliber artillery and 4-seat double turrets, and the other was the installation of 12 240mm caliber artillery and 6 double turrets. This firepower was enough to overwhelm all armored cruisers in the East China government.

However, Japan used these two types of armored cruisers as battle cruisers, which not only overwhelmed all armored cruisers of the East China government, but also could also be on the battle line when necessary. When used as battleships, it would make up for the shortcomings of its own battleships. Therefore, it must maintain a unified main gun caliber with the battleships. After all, 240mm caliber artillery and 280mm caliber artillery are somewhat less powerful when fighting battleships.

Of course, whether it is a battleship or an armored cruiser, in order to ensure the strong firepower of a single ship, it can only weaken the armor protection of the warship. Therefore, the armor protection of these four types of warships can only be designed with the minimum standard.

In addition to battleships and armored cruisers, the remaining cruisers and destroyers were designed by Japan themselves. Bijing Japan once built the Hashitachi, the three-scenery ships, and also designed and built the cruisers Suma and Akashi, so it still has the ability to design medium-sized cruisers.

While Japan announced its latest shipbuilding plan, the construction of British warships did not stop. After building the dreadnought of the times, Britain had built a total of 10 dreadnoughts in five levels, and Germany's pursuit did not stop. With the help of the East China Government, a total of 11 dreadnoughts were built in three levels, which even overwhelmed the British. However, Britain built another 2-level 6 battlecruisers, so it was still slightly better.
Chapter completed!