On the ninth day of the first month of the 34th year of Taiping in the Ming Dynasty, at four o'clock in the afternoon of the Ming Dynasty, the Anti-Ming Alliance and the Ming Empire officially ceased fire.

This world war, which lasted for more than ten years, finally came to an end in a state of basically equal status, or a state in which both sides worked in vain.

Potential preparations before the formal peace talks began, and Honglu Temple immediately became the busiest institution in the Ming Dynasty.

The Honglu Temple and the British-led anti-Ming alliance discussed the specific time and place of the peace talks, and each selected and reported the composition of the participants.

According to Zhu Jianyan's experience, this process will take at least half a month, but what will take even longer is the retreat of troops on both sides.

The level of trust between the two sides is very low, and it will definitely keep you out of one division, then I withdraw from one division, and you withdraw from another division, and so on staggered and slow.

These things are all managed by the special personnel of Honglu Temple, and Zhu Jianyan, the former secretary of Honglu Temple, who has been dismissed, presided over.

Zhu Jingyuan, who was actually acting for the Honglu Temple, completely ignored the Honglu Temple's picks and concentrated on presiding over the warship design work in the Ministry of Industry.

The next day, at nine o'clock in the morning of January 10, the old city of Daming Jingshi, the propaganda hall of the Ministry of Industry.

The layout of the lecture hall is similar to the lecture hall in Zhu Jingyuan's previous life, with a lectern equipped with a desk and a writing projector in the middle of the front, and rows of fixed seats below.

Several young craftsmen from the Ministry of Engineering were busy inside and outside the lecture hall, checking again to clean up the site and debug the equipment needed.

Zhu Jingyuan, who did not go to the early dynasty, sat at the bottom of the podium and sorted out the materials he had prepared for the last time and sorted out his naval ship development plan.

Traditional naval combat ships can be roughly divided into three types: capital ships, screen ships, and auxiliary ships.

Capital ships are mainly battleships, pursuing defensive perfection and strong firepower, similar to the main force of the Chinese army in the traditional army, which may be heavy infantry or heavy cavalry.

Screens are primarily cruisers, seeking to be mobile and perceptual, like the screens on the periphery of the main force of the traditional army, such as light armor skirmishers and light cavalry, as well as scouts.

Auxiliary ships are mainly destroyers, which pursue economic benefits and complete categories, and are auxiliary units in the traditional army, which have to do everything to run errands, rescue people, explore, clear mines, and deploy defense.

The most basic combat framework of the Navy is that the Screen Guard Fleet first patrols and guards the periphery, and after encountering the enemy's Screen Guard Fleet, it conducts an "avant-garde war."

After winning the avant-garde battle, the Screen Fleet found the enemy's main fleet and notified its own main fleet to come as soon as possible for a "fleet decisive battle".

Theoretically speaking, only a decisive battle of the fleet can determine the outcome of a naval battle, and avant-garde warfare is information reconnaissance and early testing.

However, the results of avant-garde warfare determine the degree of control over battlefield information by the participating parties.

Mastering information superiority can enable the main fleet to cut into the battlefield at the right time and at the right angle, and gain the advantage of being the first to move and course.

If you want to win the decisive battle, then it is better not to lose the avant-garde battle, so the cruiser as a screen guard has a tendency to increase.

Before the advent of dreadnought battleships, armored cruisers were constantly expanding in size and getting closer and closer to the main battleships.

In the era of dreadnoughts, a composite battleship with the speed of a cruiser and the firepower of a battleship was directly developed - the battlecruiser.

The battleship cruiser was very similar in size and appearance to a traditional capital battleship, especially the weapon system could be completely identical.

It's just that traditional battleships pursue high defense, the sailing speed is relatively limited, and the hull is stocky and short.

Battlecruisers, on the other hand, pursued higher speeds, had much weaker defenses than traditional battleships, and had slender hulls.

Battleship cruisers are a bit like special operations units, they carry the firepower of capital ships to fight avant-garde warfare.

When encountering the enemy's Screen Cruiser, you can directly take out it with the firepower of the capital ship.

When encountering the enemy's main fleet, it did not suffer in firepower and still had the strength to fight.

If the injury is not serious after the avant-garde war, you can continue to fight the decisive battle of the fleet with the main fleet, the so-called one ship for two purposes.

Therefore, even if the battlecruiser is the most expensive battleship of its time, it is more expensive than the regular capital battleship, but it is a very cost-effective type of battleship.

The richer the navy, the more cost-effective the battlecruiser was.

If the Screen Fleet is greatly patrolled and guaranteed to be of sufficient size, it will be basically impossible for the enemy to win in the avant-garde war.

When it comes to the decisive battle of the fleet, your main fleet can have a very obvious advantage in firepower density.

On such a basis, the battlecruiser was still a battleship that held its value very well.

The early low-speed dreadnought battleships, designed before World War I, were largely obsolete by the time of the Naval Treaty in the twenties.

The newly designed low-speed battleships of the twenties, such as the Colorado, Nelson, and Nagato, were no longer up to date with the times by the time World War II began in the late thirties.

The cutting-edge battleships that had just been designed before the outbreak of World War II were quickly eliminated and retired after the end of World War II with the maturity of guided weapons.

To sum up, the effective service life of orthodox dreadnought battleships in history usually does not exceed twenty years.

As for the excellent battlecruisers of the First World War, such as the British battleship cruiser Prestige.

Built in 1915 and dismantled in 1947, she played the role of a capital ship in both world wars.

The effective service life of such a battle cruiser was more than thirty years, and it could even be twice as long as that of a conventional battleship.

The main reason is the continuous speed race, which makes the battle patrol design objectively prescient.

The speed of an ocean-going vessel is usually expressed as "knots", and 1 knot means "1 nautical mile per hour".

1 nautical mile is equal to 1.852 kilometers, which is the length of the arc of 1 minute on the meridian of the earth, 60 is 1 degree, and 360 degrees is 1 circumference.

If an object moves at a speed of 60 knots, it can move exactly 1 degree of arc length on the Earth's surface every hour, and it orbits the Earth exactly 360 hours.

With the development of the Industrial Revolution, the ship's power system was rapidly upgraded, allowing the fleet to continue to increase its speed.

The aircraft carrier tactics formed during World War II required the fleet to have a speed of at least 27 knots or even more than 30 knots, about 55 kilometers per hour.

At the same time, the shell shape of the part below the waterline of the battleship must be designed to adapt to the target speed of the battleship.

Early traditional dreadnought battleships were designed to fit into 20 to 23 knots of stubby hulls.

Even if the new high-power power system is replaced in the later stage, it is difficult to reach a speed of more than 27 knots, and the result of forcibly pushing it up is that the fuel consumption is very ugly.

Moreover, the power compartment capacity of traditional battleships often cannot accommodate the large power systems of new models.

On the contrary, the early battle cruisers were originally designed for a slender hull of more than 25 knots, and were naturally able to adapt to high speeds.

In order to accommodate the low-density powertrains of the early days, the Warcruiser's power bay was usually quite large, and the upgrade space was spacious enough to be overly rich.

Therefore, the war patrol built during the First World War era can continue to be used in the World War II era.

It may not be able to be the core main force of the real fleet, but the main force of the fleet in World War II has also become an aircraft carrier.

The Battle Cruiser can have a place in the Grand Fleet of World War II as a large frigate of the aircraft carrier.

As for the traditional battleships of World War I, they will be completely eliminated from the main fleet because they cannot keep up with the speed of aircraft carrier formations in the era of World War II.

Unless the front and rear of the battleship are connected to a section of the hull, the length of the waterline of the hull is extended, and the inside of the hull is dismantled and rebuilt.

The cost of such a renovation is simply too high, and historically only Italians have done it.

The cost of renovating four old battleships of World War I was enough to build two and a half cutting-edge high-speed battleships of World War II.

If it weren't for the restrictions of the naval treaty, they would definitely have chosen to build new ships.

The "cutting-edge battleship" of the World War II era, or "high-speed battleship", was the ultimate complete body of the dreadnought battleship.

At the same time, it had the defense capabilities of a traditional battleship and the high speed of a battlecruiser.

But the tactical heirs of armored cruisers and battle cruisers are not completely dreadnoughts that appeared only in the World War II era.

Rather, it is another flower that sprouts from the foundation of the cruiser - an aircraft carrier.

The combat mode of aircraft carriers has abandoned the traditional ideas of avant-garde warfare and fleet decisive battles.

If you insist on it, the aircraft carrier will directly send the enemy's main force to the bottom of the sea to raise corals during the avant-garde war.

Battlecruisers could take into account both avant-garde warfare and decisive battles.

Aircraft carriers, on the other hand, combine avant-garde warfare with the decisive battle itself.

And the limit of this path is -

Discover, i.e., destroy.