From this glance, we can see that after several years of painstaking research and development, we have finally come up with a rapid-fire naval gun with a caliber of 300 mm and 45 times the caliber or simply 50 times the caliber.

And the Olisa Empire is even more straightforward, they directly found the Krull Kingdom to procure, hoping that the Krull Kingdom will provide them with technical support.

The Krull Kingdom saw that the Orissa Empire did have an irreplaceable role in containing the Daheng Empire, so they did not refuse them, so the two sides reached a cooperation plan, and the Orissa Empire will directly purchase the main gun systems required by the two warships from the Krull Kingdom's two finished Ningyu-type warships, and then they will build their own hulls and install them in China.

That is, the plan of four new warships was made at once.

The Iberian Empire is even more straightforward, and it is over to directly purchase from the Krull Kingdom, this Iberan Empire was originally the younger brother of the Krull Kingdom, and even there was a marriage between the royal families of the two countries.

And the Oran Kingdom and the Gafia Empire also have their own channels!

The Orlan Kingdom once again found the Daheng Empire, and wanted to continue to cooperate with the Daheng Empire, and tried to obtain some new technologies of the Daheng Empire by exchanging technology for technology and market for technology, such as the technology of 300 mm rapid-fire naval guns.

They are looking for the Great Heng Empire, purely because the Great Heng Empire is far enough away from them, and the export of weapons from the Great Heng Empire generally does not involve many political conditions, after all, there are now four countries on the Blue Star that have relevant technologies.

Among them, the Kekel Empire and their Orlan Kingdom are directly bordered, and they are direct competitors, looking for the Kekel Empire to buy weapons, the Orlan people are crazy, but the people of the Kyle Empire are not crazy.

The Walya Empire also has a bad relationship with them, they are all big countries on the Western Continent, and their relationship is already very poor, and there are many contradictions between the Oran Kingdom and the Walya Empire because of the Mongol Khanate and the Rogo Khanate.

And the Krull Kingdom, in fact, the Orlan people have also looked for it, and the Krull Kingdom also sells it, but the asking price is too high!

That's all this to find the Great Heng Empire!

The Great Heng Empire also agreed!

In the agreement reached between the two sides, the Oran Kingdom will purchase three battleship orders from the Daheng Empire, one of which will be built by the Daheng Empire, and the other two will be built by the Oran Kingdom after purchasing the main parts from the Daheng Empire, and the Daheng Empire will help them build a factory that can produce 300 mm and 45 times the caliber of naval guns.

The purchase of this warship and naval guns itself is actually nothing, the core lies in this naval artillery production factory, in order to get this naval artillery factory, the Oran Kingdom has paid a huge price, spending a huge amount of money to purchase all the equipment needed by the factory from beginning to end, not to mention, and at the same time reaching an agreement with the Daheng Empire in other commercial fields.

If there are not enough economic benefits, the Great Heng Empire would be stupid to build them such an advanced naval artillery factory!

And even if the Daheng Empire bought it cheaper than the Krull Kingdom's side, the asking price was still very high.

On the other hand, when the Krull Kingdom provided the Olisa Empire with 300 mm advanced naval gun technology, in addition to ordinary economic interests, it also reached an agreement on the mutual use of naval bases, which actually refers to the opening of a number of military ports by the Olisa Empire for the warships of the Krull Kingdom's navy to supply and moor.

But the Kyle Empire has even reached a strategic cooperation agreement with the Gafia Empire, and the two are close to a direct alliance to deal with the Ibean Empire.

Well, there is an Iberian Empire sandwiched between the Gafia Empire and the Kkarl Empire, and they have always had a lot in common when it comes to facing the Ibean Empire and the Krull Kingdom.

Therefore, the technology of this series of new 300-millimeter naval guns is not a cheap commodity, if you want to buy it, you need to pay a huge price, and other countries still want a political price, and the Daheng Empire, it is better to speak, as long as you give money.

However, the naval guns exported by Daheng were only limited to the 300 mm and 45 times caliber naval artillery systems, and the more advanced 50 times caliber naval guns were not sold.

In addition, in terms of unified fire control technology, the Daheng Empire will not export unified fire control technology for its own use, but has also engaged in a special export of a low-profile version of the fire control system.

Because the technicians of the Great Heng Empire are very sure that the Krull Kingdom and even several other countries, don't look at them now that they are starting to toss the unified all-heavy artillery battleships, most of them also know what unified fire control is.

But they definitely don't have the same advanced unified fire control technology as Ning Yu now!

If you simply unify fire control, in fact, second-rate countries can do it, the difference is only accuracy and efficiency.

The concept of unified fire control technology is very simple, and you can know it casually, but it is not easy to achieve such an advanced level as Ning Yu.

The unified fire control system that the Great Heng Empire is equipped with on the Ning Yu is not just a single component, but a combination of entire systems, combining many top technologies.

There are only six optical rangefinders on the Ningyu, which are the main rangefinder of the bridge and the main gun rangefinder of the five turrets, and the main rangefinder on the bridge is currently the largest rangefinder in the world.

The fire control room needs to collect a lot of data including rangefinders and odomemeters in the first time, and then calculate the average value through the special average instrument in time, and then input the shooting commander according to many other data, including hull roll, wind direction and many other data, and finally obtain the shooting parameters.

Then inform the artillery groups to shoot Zhu Yuan.

After each artillery group has set up the firing elements, it will wait for the order of the unified fire control officer before opening fire in a unified manner.

In the whole process, the collection and timely transmission of information is a key technical difficulty, because the battleship is very large, and the equidistant personnel of each artillery group are very important, and it is useless to shout directly, and it is barely possible to use the old microphone, but it is still not enough.

What is the messaging used on the Ningyu? Phone!

That's right, the telephone of the Great Heng Empire has been developed, and it is still a top-secret project at present, and it has not been made public, because this is one of the key technologies in unified fire control.

In addition to the timely collection and transmission of information, there is also a big technical problem that is how to quickly calculate the shooting elements.

If you only rely on manual calculations, you can barely do it, but the efficiency is too slow, and when you finish counting the shooting yuan, the enemy's shells are estimated to fall on top of your head.

Therefore, mechanical equipment must be borrowed, and the Ning Yu uses the same specially developed shooting commander, this thing only needs to input various data, and then it can automatically give the shooting yuan, and the technical difficulty of this thing is very high.