Warlord: Red Alert Base, I challenge the whole world alone

For him at the moment, the most cost-effective ship is undoubtedly the submarine.

It can directly form combat effectiveness and pose a threat to the enemy.

It is very likely that the navy had just been established, and its first opponent would be the first navy in East Asia and among the top five in the world, that is, the Fuso Navy.

Next, he wants to occupy Qidong Province, which will undoubtedly affect the interests of the Fuso people.

Ling Liang has already made this very clear.

The Fuso people are too close to the ancient country, and if they were to interfere with his recovery of Qidong Province.

Then it is certain that the Fuso Navy will be dispatched.

So he needed a weapon that could be quickly mass-produced and pose a sufficient threat to him.

The only weapon of this kind is submarines.

As for battleships and aircraft carriers, even if there is a base, the production cycle is very long, not to mention that supporting destroyers, cruisers and other ships need to be produced to form fleet-scale combat effectiveness.

The funds required here are not something that can be obtained with just a few million.

But even if they couldn't be built, Jiang Hua still looked at those large ships with drooling.

Iowa-class battleships, Yamato-class battleships, Montana-class battleships? !

Wait, Montana?

Jiang Hua rubbed his eyes, thinking he had seen it wrong, but when he looked again, the Montana-class battleship was there.

If he remembered correctly, the Montana-class battleships were only on the drawing board and had not been built.

Because at that time, aircraft carriers had become the veritable overlords of the sea.

The battleships became the veritable coffins at sea.

As powerful as the Yamato and Musashi, one was besieged and killed by the carrier-based aircraft of the aircraft carrier, and the other was sent to the bottom of the sea by a submarine torpedo before it could take a few steps. It could no longer play any role in the naval battle.

"Skynet, what's going on?"

"The Montana-class battleship was indeed never produced. In fact, this is the Red Alert Base's own unit - the Dreadnought-class battleship, which simply borrowed the design of the Montana-class battleship.

Although similar in appearance, their core is very different, and the base units are more advanced."

"But why use the name of the Montana-class battleship?"

“Because it was inspired by the exterior design, we used this name.”

After hearing this, Jiang Hua understood what was going on. He resisted the urge to build and continued to look at the Montana-class battleship.

Although its tonnage is inferior to that of the Yamato class, it is also at the level of 7.

However, in terms of armament, it is stronger than the Yamato, especially in terms of anti-aircraft firepower and ship electrical systems, which the Yamato class cannot even catch up with.

It’s a pity that this thing cannot be built at the moment, otherwise Jiang Hua would definitely build it.

Although it is said that the future world belongs to aircraft carriers, in this alien world, the main battleships of the navies of various countries are still battleships.

There are some countries that can own battleships, but there are only a handful of countries that can build battleships, so this thing was a strategic weapon for various countries before the mushroom egg came out.

For small and medium-sized countries near the coast, this thing is not much different from a mushroom egg.

So battleships can still be useful.

Looking back, Jiang Hua suddenly saw the battleship he could afford to build, which also barely met the draft limit.

He directly included this thing in his construction intentions. (Can you guess which one?)

Then he looked at the aircraft carrier again.

Ark Royal, Essex class... Midway class...

He liked all these aircraft carriers, but even the lower-tonnage Ark Royal had a draft of more than 6 meters, so he could only look at them to satisfy his curiosity.

Let's wait until we take over Donglai City. Donglai City has a more suitable port with a water depth of more than 12 meters. By then, as long as we have enough funds, everything will be fine.

After looking at these big guys, Jiang Hua looked at the submarines that can be built now. These are also weapons for the poor and the most cost-effective weapons at present.

The most famous submarine during World War II was undoubtedly the U-boat, also known as the VII series.

But Jiang Hua really didn't like this type of submarine and directly knew his favorite target - the Type XXI submarine, also known as the Type 21 submarine.

This submarine was one of Sandezi's doomsday weapons. Unfortunately, it appeared too late and could not change the situation of the war at all. However, its appearance had a profound impact on the subsequent development of submarines.

Many of its designs were used as references by later developed submarines, making it the third milestone in submarine development.

For example, it used a snorkel device for the first time.

This thing allows it to charge the submarine without surfacing, reducing the risk of exposure when surfacing and greatly increasing the safety of the submarine.

This is just one of the reasons. The emergence of snorkels has also fundamentally changed the way submarines fight, enabling submarines to transition mainly to underwater navigation.

You have to know that before its appearance, submarines sailed on the surface of the water when they were not in contact with the enemy, and even had deck guns.

Until the appearance of the Type 21 submarine, all these were cancelled and it became a true submarine.

There is also a semi-active torpedo loading system, which allows the submarine to complete loading within ten minutes, which means that 20 torpedoes can be launched within 18 minutes.

How many ships can withstand the density of this thing?

How long would it take for a submarine not equipped with this system to reload torpedoes?

The answer is 12 minutes, but this 12 minutes is one, not 6.

It only takes less than 21 minutes to load a Type 2, that's the difference.

There is also an improved sonar system.

The submarine's sonar data conversion device can automatically calculate and set torpedo parameters, aim at the target without a periscope, and launch an attack at a depth of 50 meters.

This not only increases concealment but also improves security.

Moreover, the Type 21 submarine is also creatively equipped with sound-absorbing tiles.

This thing is actually a synthetic rubber tile made of high-molecular polyisobutylene homopolymer. It is about 1 square meter in size and 4 mm thick. It is covered with densely packed cylindrical holes with diameters of 2 mm and 4 mm.

This anechoic tile is laid on the surface of the submarine and can reduce the submarine's reflected echo by 15%.

In addition, it can also suppress diesel engine noise radiation and reduce the detection distance of passive sonar.

(The new type of silencing tiles was only equipped on one Type 4709 submarine, U-21.)

When these black technologies are combined and gathered on a submarine, you can imagine how advanced this submarine is.

This is the real underwater ghost. If it doesn't attack, it's fine. But once it attacks, it can deliver a fatal blow to the opponent.

You have to know that the current technological progress in the other world is only equivalent to that of the early 30s, and the sonars of various countries may not be able to detect the existence of the Type 21 submarine at close range.

This is still the sonar system of the Western powers. The Japanese sonar lags behind the West by at least one or two generations, and their sonar system is very unreliable. It can even be said that anything related to electronics, made by the Japanese is unreliable.

This includes aircraft or car radios, and there are many examples of them failing.

Therefore, the emergence of the Type 21 submarine may be a dimensionality reduction attack on the Fuso Navy.

What reason is there for Jiang Hua to produce other submarines?

The Type 21 submarine has a surface displacement of 1621 tons and a fully loaded underwater displacement of 2100 tons.

Its surface speed can reach up to 17.2 knots when using an electric motor, but under normal circumstances it only uses a cruise motor for cruising, with a speed of only 6.1 knots.

The underwater speed exceeds the surface speed. When the electric motor is turned on, it can reach a maximum of 17.9 knots. This is also the first time that the underwater speed of a submarine exceeds the surface speed.

In terms of armament, it is equipped with six bow torpedo tubes with a caliber of 533 mm.

This is also the most deadly weapon it carries.

Compared with those large warships that weigh tens of thousands of tons, the construction funds for the Type 21 submarine are much more pleasing to Jiang Hua.

21型潜艇现实当中的造价是660万帝国马克，现在和大洋的汇率几乎是1:1，所以也就是660万大洋。

Of course, the cost of the base is still much cheaper than the actual cost.

The cost of building a Type 21 submarine is 100 million yuan.

Compared with the army's weapons, this thing is simply too expensive. One Type 21 submarine can recruit army soldiers.

Including weapons, at least one and a half regiments of fully armed army can be recruited.

However, the value of the Type 21 submarine cannot be compared with that of one and a half regiments of infantry.

"Skynet, how long will it take me to build a Type 21 submarine?"

"According to the shipbuilding rules of a first-level naval base, 1000 tons can be built per month if one production line is in operation, 2000 tons if two production lines are in operation, and 3000 tons if three production lines are in operation.

Since the first-level naval base only has three production lines, the maximum construction speed is 3000 tons per month."

After hearing this, Jiang Hua understood.

The surface displacement of the Type 21 submarine is 1621 tons, which is its own weight.

As for the underwater displacement, since seawater is injected, it must be calculated according to the surface displacement.

If a production line is started with 1621 tons, the construction can be completed in 47 days.

If one ship is arranged on each production line, it means that three ships can be produced in 47 days.

But if three production lines are used to produce one, it will only take 17 days to build one.

It would take 51 days to build three ships.

If this is the case, the former method is actually faster to build.

But the latter construction method also has its advantages, that is, the ship can be built in advance.

This advantage is actually not reflected in small-tonnage submarines.

But if it is placed on a 7-ton battleship, it can be fully demonstrated.

If three ships are built at the same time, it will take 70 months to build one, which is more than 5 years, almost 6 years.

Although three ships can be built in six years, the average is one ship every two years.

But the 6-year construction period is really too long. It’s okay if you are not in a hurry to use it, but it is definitely not acceptable if you are in a hurry to use it.

Therefore, if you want to build a large ship, the second method is the fastest.

A 7-ton Montana would take only 23 months, or less than two years.

The construction speed is much faster than that of the great powers.

Generally speaking, the whole process from keel laying, sea trials, outfitting to commissioning takes at least three to four years.

And this is the case of a first-level naval base.

The second-level naval base will definitely be greatly improved, which means that the construction speed will be faster.

Of course, it’s a little too early to think about upgrading now.

For the Type 21 submarine, Jiang Hua chose to build one submarine at the same time on three production lines, so that the navy will have its first ship in 17 days.