The Boogier armored cruiser was originally the same as the Garin-class armored cruiser, which was a pure foreign trade warship, but the shipbuilding department of the Daheng Imperial Navy felt that the Boogier armored cruiser's mountain-shaped armor protection design and naval gun layout were also good, and it was very rare to be able to achieve such protection and firepower, speed and endurance in 7,000 tons.

Subsequently, the designers of the shipbuilding department of the Ministry of Ship Administration improved the design of the bulge armored cruiser, replacing the armor of the Garin-class armored cruiser and the Bourgil armored cruiser with hardened armor, with 150 mm hardened armor as the main armor belt, and at the same time expanding the protection area to achieve comprehensive protection.

As for the artillery, the first one was equipped with one 200-mm 40-caliber half-rapid-fire gun, and then the whole ship was equipped with fourteen 150-mm rapid-fire guns and a number of 75-mm and 40-mm rapid-fire guns.

The powertrain is still used!

In this way, they will be able to achieve the performance of almost tens of thousands of tons of warships in a tonnage of more than 7,000 tons, and even be able to fight against the battleships of tens of thousands of tons in various countries.

Because when the R&D department tested the protective effectiveness of hardened armor, if the 150 mm hardened armor was in an inclined layout, and the enemy did not use the armor-piercing shells, it could even block the ordinary pointed armor-piercing shells of the enemy's 300 mm main gun at a distance of four or five thousand meters.

And unfortunately, in this year, except for the hardened armor of the Daheng Empire itself, and then tossed out the armor-piercing bullets for its own hardened armor, other countries have not been exposed to armor-piercing shells!

That is to say, now the navy of the Great Heng Empire, with one hundred and fifty mm of hardened armor, is enough to resist the three hundred mm and thirty times caliber naval guns that are widely equipped with the navies of various countries.

At the same time, if you want to block a 150 mm rapid-fire gun, you need at least 200 mm of steel armor, and to resist a 120 mm rapid-fire gun, you need at least 150 mm of steel armor.

This armor thickness is beyond the reach of many armored cruisers that are second-class battleships, because many armored cruisers use key protection, and the protection level of most areas of armored cruisers is lower than this number, not to mention those first-class armored cruisers with dome layout, they don't even have an armor belt......

And the rapid-fire artillery secretly developed and equipped by the Great Heng Empire has an extremely fast rate of fire, which can project a large amount of rapid-fire artillery ammunition in a very short time, and then wash the enemy ship with cannonballs from beginning to end!

This means that the one hundred and fifty mm rapid-fire guns of the Great Heng Empire are enough to pose enough threats to those warships of eight or nine thousand tons or even more than ten thousand tons!

At the same time, the ship's 150 mm hardened armor is enough to withstand the main guns of most battleships, and even the mainstream naval guns of contemporary battleships of various countries, with 12 inches and 30 times the main guns.

What does this mean?

This means that the Daheng Empire only needs to build an armored cruiser with a displacement of seven or eight thousand tons, equipped with 150 mm hardened armor and a large number of 150 mm rapid-fire guns, to be able to fight against a large number of armored cruisers and battleships of 8,900 tons or even tens of thousands of tons currently under construction in other countries.

This design scheme also comes from an important theory put forward by the Ministry of Naval Affairs in recent months: the rate of fire is more important than the caliber!

Many people in the Ministry of Ship Administration think that the current 300 mm caliber main gun is just an ornament, which seems to be very powerful, but the rate of fire of one round in two minutes is even lower in combat, and it will not be possible to fire a shot for half a day, and the actual hit rate will be lower, which is very obvious in the Orr War, and the actual combat rate of fire of the main guns on both sides is very low.

"If the naval cannon doesn't hit, no matter how powerful it is, it's useless!" This is the proposition of Rear Admiral Qiu Yufei, director of the Guns Department of the Ministry of Shipbuilding!

Therefore, the Guns and Artillery Department of the Ministry of Naval Affairs is now advocating reducing the number of large-caliber main guns in the new warships, and at the same time equipping them with a larger number of rapid-fire guns, and vigorously promoting the research on the large-caliber of rapid-fire guns, and striving to turn large-caliber guns into tube-down rapid-fire guns.

At the same time, because of the excellent protection performance brought by hardened armor, and because of the threat brought by the high rate of fire of rapid-fire guns, the concept of comprehensive protection has been deeply rooted in the hearts of the people before.

This is actually in line with several important characteristics of a series of new warships in the third phase of the naval development plan: high freeboard, hardened armor, rapid-fire guns, and full protection.

According to these concepts of the Ministry of Naval Administration, the Navy soon finalized the design plan and construction plan, and initially decided to be a Huichang-class armored cruiser.

This armored armored cruiser and the Fengyang-class armored cruiser seem to be armored cruisers, but they are completely products of different design concepts, the Fengyang-class armored cruiser, which is a high-speed battleship based on the battleship's speed enhancement, while reducing firepower and protection, just look at its displacement of more than 12,000 tons!

The Huichang-class armored cruiser, this is a purer, low-cost armored cruiser program, to be honest, in fact, it is more suitable for foreign trade.

However, a series of new technologies such as hardened armor and rapid-fire guns adopted above are classified technologies and cannot be used in foreign trade.

However, now there is no news of hardened armor and rapid-fire guns in the world, at least the Daheng Empire has not heard of other countries, let alone foreign trade warships.

Therefore, even these old and mature technologies, as long as they are cheaper, can still have a certain competitiveness in the international market.

No, the four countries on the east coast have just finalized a contract with the Daheng Empire to order torpedo boats and armored cruisers, and the alliance of the three countries on the west coast of the South Continent has also come to order a batch of torpedo boats.

However, they did not purchase capital ships, they were even poorer, they could not afford to buy millions of armored cruisers, they only ordered a few large torpedo boat lead ships, the kind with a tonnage of more than 500 tons.

However, mosquitoes are also meat, so the Daheng Empire did not let it go, and even in order to promote orders, plus they really didn't have much money, they all gave them a few old torpedo boats in active service in the navy.

Immediately afterwards, it finalized an order with the Kingdom of Lieji on the southwest continent for two dominated cruisers.

However, it didn't take long for the Great Heng Empire's arms trading company to usher in a major piece of good news, the Mongol Great Khanate on the Western Continent wanted to purchase a number of warships to replace the many backward ironclad ships in their fleet.

It is expected that the order will be very large, with at least two battleships, two armored cruisers or second-class battleships, four second-class cruisers, and a large number of torpedo boats.

And thanks to the excellent performance of the torpedo boats made by the Great Heng Empire in the Orr War, the Mongol Great Khanate did not think much about it, and directly approached the Great Heng Empire to negotiate the order of thirty small, medium and large torpedo boats.

However, after learning that they had a bigger plan to purchase ships, the Daheng Arms Trading Company couldn't sit still, and directly contacted the navy and the Ministry of Foreign Affairs and other high-level officials, and directly came forward to try to get the order for the capital ships of the Mongol Khanate.

Compared to these capital ships, the order for those thirty torpedo boats is not worth mentioning at all!

Even if you can't get it all, you have to eat at least some of it, otherwise, what face will you claim to be a big arms exporter of Blue Star!

Just grab an order for a capital ship, that's a big business of millions!