In the Daheng Empire, the secrecy measures of the Quping Naval Base are the strictest, and at the same time, they are also the most effective, which is why the Daheng Empire chooses to build many warships that need to be kept secret here and moored here.

At the same time, the secrecy factor is also the reason why the Daheng Empire chose to vigorously develop the Quping Naval Shipyard here, and created the empire's first warship manufacturing factory.

Now in the Quping Naval Base, there are a bunch of advanced warships of the Daheng Empire, and Ning Yu can only be regarded as one of them.

At the same time, there are still a large number of new warships under construction in the many docks of the Quping Naval Shipyard, including the second ship of the Ningyu class, the Quyang, the No. 1 ship of the Zhongluo-class battleship, the Zhongluo-class battleship, the No. 1 ship Zhongluo, the No. 2 ship Ningwu, and the Qiping-class battlecruiser No. 1 ship Qiping and the No. 2 ship Nanping.

In addition, there are a number of River-class heavy cruisers, which are subject to financial constraints, and the core of the fourth phase of the Navy's development plan in the early stage is to build the main fleet of battleships and battlecruisers as the core as soon as possible, and the Navy's funds are tilted towards these two types of capital ships.

The river-class heavy patrol is only 10,000 tons, but this is a heavy patrol that can run 26 knots, and it also adopts unified fire control, and has eight 200 mm main guns, the technical difficulty is not low, and the cost is much lower than that of battleships, battlecruisers, but it is not cheap compared to other light ships.

As a result, the construction of a modified heavy cruiser was postponed, and the construction of this type of ship was carried out later, and the first one was only started in the 13th year of the reign of Qiansheng.

On the other hand, the Pingxi-class light cruisers of more than 5,000 tons and the Guanglin-class destroyers of 1,500 tons were less difficult to construct and not too expensive, so there were already a number of Pingxi-class light cruisers and Guanglin-class destroyers in service in the 14th year of Qiansheng.

This year, it has entered the peak period of service, and the Pingxi class has been involved in the service of as many as four, and four have also completed the hull construction, and it is estimated that they can also be put into service this year, and the Navy has begun to demonstrate the follow-up construction plan of the light cruiser.

The Guanglin-class destroyers are faster, the construction plan of the twelve ships has been completed, and the construction of the second batch of improved Guanglin-class destroyers has already begun, and several more are expected to be built.

These light warships, the Great Heng Empire has no pressure to build, so they are all built in a dozen.

There is no way, the Daheng Imperial Navy is huge and has many capital ships, and these capital ships all need light cruisers and destroyers to assist in combat.

A battleship formation of only four battleships goes to sea, and you have to pair it with at least several battlecruisers or 10,000 tons of heavy cruisers to act as an avant-garde fleet.

Then you have to bring several light cruisers with a little more firepower to intercept enemy destroyers or torpedo boats.

Then you have to bring at least a dozen destroyers for peripheral reconnaissance, vigilance, and miscellaneous work, and at the same time, it must also be used to conduct lightning operations and cooperate with the light cruiser fleet to intercept enemy light formations.

If it is an ocean-going operation, you have to bring a bunch of supply ships, for example, when the Daheng Empire sent a fleet to the Bowa military base to deal with the crisis in the Kean oil field, Baotou of the main fleet was also followed by an equally large supply fleet, which alone had as many as six 10,000-ton fast supply ships that could run 15 knots, and more than a dozen slow supply ships that could run 123 knots.

You have to protect these supply ships, which requires some second-tier capital ships, such as old capital ships, armored cruisers, and then some light warships.

So, naval construction is a system, not just a battleship, you also have to have battle cruisers, heavy cruisers, light cruisers and destroyers and a whole bunch of supply ships and other auxiliary warships.

In order for the ten main guns of the battleship Ning Yu to exert its combat effectiveness, it needs the cooperation of a whole fleet!

However, many light ships and auxiliary warships do not have such strict confidentiality requirements, such as the Guanglin-class destroyer, which is actually no different from the previous cruiser in appearance.

The firepower layout is also the traditional single-mounted naval gun layout.

The biggest change is that it's faster, but that's a good thing to keep a secret.

Even with the use of broadside armor, the Pingxi-class cruiser, which was called the 'light armored cruiser' by the Daheng Imperial Navy, was not much different from the original cruiser in appearance, and it was not easy to see the unique performance of the Pingxi-class light cruiser from the appearance.

Therefore, these two types of warships were built in the shipyards of Nanfeng Port and Luohai Port and some other medium-sized shipyards.

The shipyards in Nanfeng Port and Luohai Port are more troublesome, both of which belong to military and civilian ports, and in order to keep secret, the Daheng Imperial Navy has long been in Nanfeng Shipyard and Luohai Shipyard in several docks dedicated to the construction of capital ships.

This kind of secret alteration is to erect a high wall of separation directly around the perimeter of the dock.

As for the completely enclosed dock that even the top is covered, there is no need for it for the time being, after all, there are no planes in these years, and airships are not good, but there is no way to reconnoiter the shipbuilding base of the Daheng Empire from the sky.

The newly built main warships in these two places will also choose to sail at night after they are completed, and the shipping lanes will be blocked in advance.

Unless you run to the sky and look down, you really can't directly see the appearance of the new main warship of the Great Heng Empire under construction or moored in the secret berth.

And all this is for the sake of secrecy!

And this kind of secrecy measure is quite qualified, at least the Daheng Empire has already begun to unify the all-heavy artillery warship plan in the twelfth year of Qiansheng, although in the past few years, all countries have more or less known the content of the Daheng Empire's new warship plan, and even some countries have heard the rumors that the Daheng Empire is engaged in a warship with a large number of large-caliber main guns.

But what this battleship looks like and what the specific design concept is, these foreign countries do not know.

Some people even believe that the Daheng Empire may be building a full-level second-class main gun battleship, that is, the follow-up model of the Jinghe battleship, although the Jinghe battleship was also a secret in the early days, but it has been exposed in recent years, and the twelve second-level main guns on it also scared many people at first!

After all, twelve rapid-fire guns of 250 mm, at a distance of five or six thousand meters, that is, the best combat distance recognized by various countries at present, this firepower is quite violent, against the old battleship without hardened armor, directly penetrate the armor belt to explode the ship, even against the new capital ship with hardened armor, it can also hit your superstructure, secondary gun positions and secondary defense parts to a pulp, directly paste your face.

But so be it!

As the main battleships of various countries began to pile up eight, ten, or even twelve second-level main guns, and these second-level main guns were forty times the caliber, or even forty-five times the caliber, and at the same time, the battleships of various countries generally adopted integrated turrets and hardened armor to adopt the concept of comprehensive protection, and no one took care of the Mirror River.

After all, the top contemporary mixed main gun battleship, with four main guns, can be a one-shot decision, and a large number of secondary main guns are also full of firepower, and under the same tonnage, the combat effectiveness is much stronger than that of the Jinghe.

Dahengren has a history of building a full-second-class main gun battleship, so it is not surprising if Dahengren builds a full-second-class main gun battleship.

But they didn't know that the Mirror River of the Great Heng people had already been modified and went to the path of long-distance combat.