Zhu Jingyuan and Zhu Zhongliang's grandson and grandson, after visiting the warship-related supporting factories, including the artillery factory, the engine factory, and the armored steel factory, went directly to the Jiangnan Shipyard in Suzhou.

Zhu Jingyuan saw a complete large-scale model of the 60,000-ton warship here, and also examined the performance of the entire ship again.

The completely unloaded displacement is basically 50,000 tons.

If you calculate the standard displacement provided for in the naval treaties of the previous life, it should be between fifty-two thousand tons and fifty-three thousand tons.

The full load displacement is 62,000 tons.

Full load displacement is the displacement of all weapons, equipment personnel, and all normal fuel tanks, and there is actually another space on the ship.

So the battleship also has a maximum displacement.

It can continue to be overloaded after being fully loaded, and can sail and operate in a state of up to 65,000 tons.

The length of the waterline is 256 meters, the total length of the hull is 266 meters, and the maximum width of the hull is 36 meters.

The draft depth of normal displacement is 10.5 meters, and the draft depth of full load displacement is 11 meters.

The main armor belt on the side was four hundred and twenty mm thick and was installed at an angle of twenty degrees at an angle.

The horizontal armor of the main deck was two hundred millimeters thick.

The power system has a power of 200,000 horsepower and a maximum speed of 32 knots at full load.

The oil capacity is 9,000 tons at full load, and the maximum oil load is 10,000 tons.

At a speed of 15 knots, the maximum range is 15,000 nautical miles, equivalent to 27,700 kilometers.

The cruising range is 8,200 nautical miles at a speed of 20 knots, which is equivalent to 15,000 kilometers.

The main armament was three triple 420 mm 50x guns.

The secondary armament is four triple 160 mm 50 times the diameter of the secondary gun.

The anti-aircraft armament consisted of sixteen 120-mm high-level dual-purpose guns.

Thirty-two eighty-millimeter high-level dual-purpose guns.

Sixty-four forty-mm anti-aircraft guns.

It is equipped with four seaplanes for school firing reconnaissance.

The size of the ship's hull is between that of the historical Iowa and Yamato.

The length of the hull was basically the same as that of the Yamato, but the width was three meters narrower.

It is seven meters shorter than Iowa, but three meters wider than it.

Simply looking at the scale and image, it is a bit like the fattened Iowa, or the slimmed Yamato.

However, the firepower performance of a 62,000-ton ship is basically the same as that of the 72,000-ton Yamato.

The speed was also four to five knots higher than that of the Yamato.

When the design indicators were gradually determined, Zhu Jingyuan tried to get the designers to reduce the main armor to 360 millimeters.

Because Zhu Jingyuan felt that in future naval battles, the main armor of the battleship would be basically useless.

It is better to leave more weight and space to enhance the overall structural strength of the hull.

But then it soon became clear that the main armor was 420 mm or 360 mm, and the weight was actually only about a thousand tons, but the defense level of the side was one level worse.

1,000 tons, of course, is not a small number in terms of design, but now there are no people and rules that can limit the weight of 1,000 tons when the Ming Dynasty designs a battleship.

Moreover, if only to improve the armor, there is no need to overweight a thousand tons at all.

Within the range of 60,000 tons, 420 mm of armor can be achieved, but other functions will be affected somewhat.

Zhu Jingyuan's consistent habitual thinking is to relax restrictions on tonnage.

This time it was simply added another two thousand tons to the tonnage ceiling of the new warship.

As a result, the designers made some minor adjustments to the ship's design, keeping the main armor thickness at 420 millimeters and increasing the fuel load from 7,500 to 9,000 tons.

It really completely drained the additional 2,000 tons.

Zhu Jingyuan took the final design line drawing and report of the battleship, followed Zhu Zhongliang, accompanied by Wang Lai, to the shipyard next to the shipbuilding dock and presided over the keel laying ceremony of the new battleship.

Zhu Zhongliang presided over the ceremony of cutting steel plates for the battleship last year, and this year's keel laying was handed over to Zhu Jingyuan.

When the salute sounded and the workers entered the dock to work, Zhu Jingyuan's grandchildren and Wang Lai returned to the lounge.

While drinking tea and chatting, Zhu Jingyuan asked about other situations of the battleship:

"I didn't say anything when I watched the ceremony, so the ship hasn't been named yet?"

Wang Lai said directly:

"Not yet, if Your Highness has any ideas, you can go and discuss with the two Majesies."

After listening to this, Zhu Zhongliang asked rhetorically:

"Jingyuan, what do you think? Do you still name it after your no-prefix?

"In the past few years, a batch of 40,000-ton warships have been built, and the better words without words have long been used up.

"Then I changed the name of Yuan, Zhenyuan, Dingyuan, etc., and I chose a few, and the good ones were almost used up.

"Now this first new class of warship can be changed to a new set of naming rules."

Zhu Jingyuan subconsciously shook his head:

"I'm not really good at choosing names, and when I ask if I have a name, I just want to know the name.

"And I think that the naming of Daming's warships is a bit arbitrary now, so it's better to formulate a set of naming rules.

"Make a selection range in advance, and at the same time determine the time point of naming, and then just follow the step-by-step line.

"Every time you think about your name at any time, it shouldn't be convenient to manage the registration, right?"

Wang Lai nodded very approvingly:

"It does ......"

Zhu Zhongliang smiled and asked:

"If you're not good at choosing names, you're probably good at making rules, what do you think of this naming convention?"

It has been seven years since Zhu Jingyuan recovered his memory, and his life experience has increased by seven years again.

Zhu Jingyuan's mentality has changed a few years ago.

Zhu Jingyuan looked at the factory area outside the window, and then looked at the brochure in his hand explaining the battleship:

"Instead of searching for good words every time, it is better to name all the place names.

"Former cruisers and destroyers, most of which were named after toponyms.

"In the future, battleships and aircraft carriers can also be named after place names.

"The name of the battleship corresponds to all parts of the Ming Dynasty, and it is also convenient for the work of supporting the army in various places.

"If it is the people of a certain place in the Ming Dynasty, they should have a natural affinity for the battleship named after their hometown, right?

At the same time, the corresponding rules are stipulated, and the names of the administrative regions of the corresponding classes are used for warships of different classes.

"In the past, cruisers were most commonly used by the name of the prefecture, and destroyers often used the name of the guard and the county.

"Later, it will be clear that the fleet cruisers will use the official name of the prefecture, and the secondary cruisers patrolling and escorting will use the state name.

"The high-speed destroyers in the fleet are named after the prefectures, and the escort destroyers are named after the guards.

"Then battleships and aircraft carriers can directly use the name of the province.

"In the future, battleships and aircraft carriers will get bigger and bigger, and now they have run to 60,000 tons.

"The total number of warships of this scale will not be very large, and more than 30 is the limit.

"Even if you add 40,000 tons of warships, all the local provinces plus the names of overseas provinces will definitely be completely sufficient.

"The old battleship is decommissioned, and the new battleship can inherit the name of the ship, and it will be reused.

"In order to distinguish between different types of ships, battleships can be named after inland provinces, and aircraft carriers can be named after coastal provinces.

"Now the name of this first 60,000-ton battleship can be used in Hebei Province, which was established on the basis of Beizhili.

"The name of this most special new province is Super Battleship, which is a kind of propaganda for both the battleship and the province and the navy.

"The time of the naming of the battleship was a little too early in the design.

"It can be named when the official order is placed, so that the shipyard can directly use the name of the ship as the project code."

Zhu Zhongliang couldn't help nodding as he listened:

"Yes, this rule is logical, and it is convenient for both the navy and the locality.

"Hebei is not bad, the first 60,000-ton warship, with the name of the province of Beizhili, is very suitable."

Most of the officials and craftsmen at the scene nodded silently.

If Zhu Jingyuan's set of rules is settled, it will be a good thing for them, the actual persons in charge of the relevant work.

Otherwise, I don't know when to apply for a name every time, and I don't know what type of naming will be in the future.

In fact, the management projects of shipyard design and construction must be assigned a new internal number.

For example, the number of this new ship is directly sixty thousand and one.

But there are also a few craftsmen whose expressions are a little strange, and some are even holding back a smile.

In the end, Li Rui, who had the highest status among the craftsmen and had a relatively direct personality, spoke:

"This ...... Your Majesty, Your Highness...... That North Zhili, Hebei Province, it's actually a coastal province......"

A lot of people reacted at once.

Zhu Jingyuan said that the coastal provinces were named aircraft carriers, and the inland provinces were named battleships.

Then it was immediately proposed to name the first 60,000-ton battleship with Hebei.

The key is to win the approval of the Emperor Taishang and most of the officials and craftsmen.

They didn't mean to go along with it, but most people didn't realize that Hebei was actually a coastal province.

Zhu Zhongliang was suddenly a little dazed:

"What? Hebei is also a coastal province? ”

Wang Lai followed and said:

"Tianjin Port in Hebei Province is the largest seaport in the north of our Ming Dynasty......"

Zhu Jingyuan almost asked: What, Tianjin is from Hebei?

Zhu Jingyuan's brain has already come back to taste.

Today, I performed a live joke about Hebei and a coastal province......

Zhu Jingyuan almost held his forehead with his hand:

"I didn't realize that Hebei is a coastal province.

"That can only be used for aircraft carriers, or to reverse the naming conventions for aircraft carriers and battleships.

"So which province is better to use for this first 60,000-ton battleship?"

Zhu Zhongliang, the eldest in the grade, finally understood, and couldn't help laughing:

"Hebei...... Ha ha......

"I think it's good to name aircraft carriers along the coast and battleships inland, this rule doesn't have to be reversed.

"But I really can't use Hebei, and I can't use Nanzhili.

"Everyone thinks about it, which inland province is appropriate?"

Zhu Zhongliang and Zhu Jingyuan, with a group of officials and craftsmen, discussed for a while.

In the end, the name of the first 60,000-ton battleship was locked on Huguang.

The scope of Huguang Province of the Ming Dynasty is the sum of Hunan and Hubei in later generations, and it has always been the richer among the inland provinces.

Before the Renwu Dynasty, there was a reputation that the lake was wide and ripe, and the world was full.

At the same time, the local Xianghu School is also a very well-known regional traditional Confucian school.

After finalizing the name of the new battleship, Zhu Jingyuan and Zhu Zhongliang chatted with the craftsmen for a while, and had dinner at the factory at noon.

After the lunch break, the ordinary craftsmen went to their own work.

Zhu Jingyuan, Zhu Zhongliang, and the two grandchildren took Wang Lai and Li Rui, two officials from the Ministry of Industry, to the office of the shipyard shopkeeper.

Briefly discuss and confirm the future shipbuilding plan of the Ming Dynasty.

Although the Ming Emperor is not there, Zhu Jingyuan, a special prince, can decide on the matter of shipbuilding planning.

Wang Lai first asked Zhu Jingyuan and Zhu Zhongliang:

"Your Highness, after the mass production of the 60,000-ton battleship begins, will the 40,000-ton battleship still continue to be built?"

Zhu Zhongliang looked at Zhu Jingyuan noncommittally, Zhu Zhongliang basically did not participate in this kind of specific thing.

Zhu Jingyuan nodded very decisively:

"Of course, to continue construction, 40,000-ton battleships should always be the backbone of the battleship fleet.

"The cost of a 60,000-ton battleship is too high, and it will not be built in large quantities in the future.

"My plan for battleships is that all high-speed battleships in the future, including 40,000 tons, 60,000 tons, and even 80,000 tons of battleships that may be there in the future, the total number will not exceed 32 at the most.

"Under normal circumstances, more than half of them should be 40,000-ton high-speed battleships."

Wang Lai asked with a little surprise:

"But...... After the mass production of 60,000-ton warships, the 40,000-ton warships themselves fell into the 'medium-sized ship trap' in His Highness's theory? ”

The term medium-sized ship trap was proposed by Zhu Jingyuan.

In fact, the relevant designers already have relevant knowledge.

It's just that Zhu Jingyuan made this concept clear based on the experience of his previous life.

Due to Zhu Jingyuan's high prestige, the craftsmen naturally used this concept on their lips.

The content of this theory, presumably small battleships and lightweight battleships with a compromise in tonnage, may look good in all aspects and parameters.

But when it comes to the actual cost-effectiveness of construction and use, such warships are usually the least cost-effective.

Because among the construction costs of warships, the most expensive thing is actually the power system.

At the same time, according to the theory of fluid dynamics, the larger and longer the hull of a warship, the easier it is to obtain higher speeds.

A 60,000-ton battleship needs 200,000 horsepower to run to 32 knots.

A 15,000-ton cruiser also needs 100,000 horsepower to run to thirty-two knots.

The various frames and steel structures that determine the final weight of the battleship are the cheapest parts of the entire ship.

The end result is that the greater the overall displacement weight of the warship, the more the cost tends to be proportional to the cost.

The marginal cost of increasing tonnage is decreasing within a certain range.

So the bigger the capital ship, the more cost-effective, as long as there are no restrictions agreed upon by the other, it will definitely get bigger and bigger before the opponent can't keep up with the competition at all.

Conversely, the smaller the overall displacement weight of a warship, the higher the cost per unit weight.

Therefore, among the main fleet, the ships with the highest average cost per ton are not large battleships, but high-speed destroyers that have to move with the fleet, as well as those small high-speed cruisers.

However, all kinds of small and medium-sized cruisers and destroyers had to be built because of the actual functional needs.

At the same time, the overall tonnage is small, and the actual cost of a single ship is not obvious.

As a result, the larger the capital ship, the more cost-effective, and the smaller the ship had to be built because of the demand.

But somewhere between the cruiser and the capital ship, it became clear that a huge pit appeared in the cost-effectiveness ratio.

A 20,000-ton ship and a 30,000-ton ship require a very similar power system, so the cost difference is not obvious.

But the firepower and defense capabilities of a 20,000-ton ship are not at all the same level as a 30,000-ton ship.

This pit that appears on the cost and cost-effectiveness curve is the so-called medium-sized ship trap.

Large cruisers such as Alaska in history basically jumped into the big pit of the trap of medium-sized ships perfectly.

Des Moines, Prince Eugen and other nearly 20,000 tons of heavy patrols are basically in this pit.

The cost of two 20,000-ton Des Moines-class ships can buy a 50,000-ton Iowa, and two Prinz Eugen can also buy a Bismarck battleship.

The cost of the large Alaska-class cruiser is almost seventy percent of that of the Iowa class.

But two Alaskas will definitely not be able to beat one Iowa.

Iowa is absolutely crushing Alaska in terms of defense and firepower.

Now the 60,000-ton battleships of the Ming Dynasty used 420 mm super-heavy guns and 420 mm of super-heavy armor.

In the face of the 360 mm naval guns of a 40,000-ton battleship, the 300 mm armor was also absolutely crushed.

Zhu Jingyuan also nodded directly at this time:

"If you look at the cost alone, 40,000 tons versus 60,000 tons is indeed directly falling into the trap of medium-sized ships.

"But just like a small ship has to be built, building a ship cannot only look at the cost, but also look at the actual demand.

"If a 40,000-ton ship can meet all the needs, why spend more money to build a 60,000-ton ship?"

(End of chapter)