In fact, the battleship Peter the Great adopted many advanced subsystems and advanced design and construction technologies, but it continued to use the backward armor layout and underwater defense of the First World War, so that its various excellent subsystems could not be brought into play.

From the point of view of the USSR, the firepower of 9 12-inch L50 guns was so powerful. Moreover, the Ismail-class battleships of Tsarist Russia in World War I were 12-inch L50, and the guns were given by Britain with technology, and Tsarist Russia made them themselves. It's a pity that after so long, coupled with the civil war, the technology has long been lost.

However, it was precisely because of this factor that the Soviet Union was certainly very interested in the 12-inch guns provided by Germany. In this way, you will be very satisfied with this firepower.

Coupled with Zeiss's optical rangefinder and Germany's high-rate wedge naval guns, this conscientious combination was enough to impress the Soviet government.

In terms of power, the design speed of 3.15 knots can also fully meet the needs of the Soviet Biao ship**. After all, this speed has surpassed that of the British Hood, and it has equaled the Prestige, even if you shout "This is the fastest capital ship in the world", it is completely fine. Besides, this is only the design speed, according to the design, the main engine of this ship can be overloaded, and it is not a problem to run at a high speed that exceeds the prestige during light load sea trials.

The main installation is 12 inches, which is enough. The 350 mm armor of the conning tower can just avoid the tragedy of the conning tower being shot in the Russo-Japanese naval war.

However, in reality, the underwater defense of the defensive Vault and Reinhardt's deliberate avoidance was almost fatal.

Because of Reinhardt's "business grabbing", there was no cooperation between Italy and the Soviet Union in the navy in history, so that the Red Navy had very limited understanding of the advanced technology of the current world navy, and it was difficult to see that it was fooled.

Moreover, in 1938, when the naval holiday had just ended, all countries hid their newly built capital ships. Coupled with ideological differences and the defense of European countries against the red regime, it was difficult for the Soviet Union to obtain first-hand information on the development of naval technology.

Now all of a sudden, there's a Germany, and all of a sudden you're showing the Soviet Union a whole bunch of advanced design ideas, and someone else can give an explanation for it by adopting conservative design in other areas, isn't it?

As for the consequences....... Peter the Great, which was based on the original historical Scharnhorst, excessively elongated the hull in order to pursue speed, to arrange more power systems, and to reduce the resistance of water when driving. And due to the narrowing of the hull, the length of armor protection naturally increased, and in order to maintain the main armor of 305 mm on paper, it was only possible to reduce the height of the main armor belt.

The narrower hull meant less depth in the anti-torpedo compartments, which made it more vulnerable to heavy damage from underwater attacks. And the upper armor belt of the main armor was cut to 50 mm, which was only better than nothing. Close-range ballistic flat fire, there is the iron pants of the dome armor in the pocket, but once the distance is widened, the shell can bypass the main armor, easily penetrate the armor, dome armor, and go straight to the core cabin under the dome armor.

As for the face of aviation strikes, the ship is much more vulnerable.

In air defense, the 150 and 105 guns could not be used against the air due to the deliberately modified elevation angle, rate of fire, etc. The small-caliber anti-aircraft guns were also accounted for by the "37 hand-pulled aircraft" that specialized in torpedo boats, which were also straight ballistics and outstanding accuracy, so that the anti-aircraft capabilities were in a hurry.

Even if the Soviet Navy wanted to install its own anti-aircraft guns in the future, the traditional 37-40mm caliber anti-aircraft guns were very occupied, and it was difficult to add much. As for the Deshka 14.5mm heavy machine gun, the 20mm cannon and the like can be decorated, but is it effective......

All in all, when facing an air attack, it was quite difficult for Peter the Great to avoid an air attack because of the long hull and inconvenient steering. This is especially true when dealing with aerial torpedoes from various angles.

Moreover, the underwater defense of this ship is very weak, and the power system is also boring.

The best design is that each boiler and turbine is arranged in a separate watertight compartment, and the boiler and engine compartments are staggered, which further enhances the vitality of the power system. But the Peter the Great, who was passive, had no reasonable compartment arrangement at all!

As for the horizontal armor, although the layout of the thin top and the thick bottom can play the role of taking off the cap to a certain extent, and can increase the equivalent thickness of the point, but in the face of the armor-piercing shells dropped by the "famous German Stuka" dive bomber at a large angle, this layout is not as reliable as the single-layer large-thickness horizontal armor. Of course, in the face of large-caliber naval artillery shells coming from a long distance, such horizontal armor is difficult to parry.

Since the armor-piercing shell can penetrate two layers of armor in turn to the core cabin, the Scharnhorst, which was the prototype of Peter the Great in history, was also pierced, but because the armor-piercing shell penetrated the armor, it penetrated the hull all the way into the sea, and survived under the good luck of the armor-piercing projectile. However, most of the warships were not so lucky, such as the Scharnhorst's sister ship, the Gneisenau, which was paralyzed in port after being attacked.

Overall, this is a top-notch battleship of World War I that looks beautiful, but when used in practice, its firepower and speed are also outstanding.

However, it does have a lot of loopholes. These vulnerabilities were not obvious in the early stages of World War II, and could only be known until a torpedo was fired or the enemy's naval aviation ran into it.

Of course, when the Soviet Union fights Finland in the future, this ship will still be able to crush such small countries that do not have much strength. Using the long range of the L50 to suppress the Finns, if used well, it can also make Britain and France exclaim invincible. It's a pity that the Soviet Navy wants to get it or not.

From the German point of view, Peter the Great was more of an experimental ship, used to verify the effect of various subsystems when installed. For example, how to use the power system in Italy, and how to use the German high-temperature, high-pressure and high-cycle boiler to improve the power.

In other words, how to better improve the power system, how to give full play to the advantages, and not to adapt to the soil and water, this is the importance of verification technology. After all, it is still less distressing to verify what you give to others than to verify it with your own ship.

As for the 12-inch main gun, this was also an experiment made by the German Navy for large-caliber guns.

More importantly, this kind of naval gun has high requirements for industrial hard power, and even if it gets the technology, the Soviet Union may not be able to build it by itself, and even if it is built, it is mostly nondescript and castrated, and its performance and life will be greatly reduced.

There is still a lot to verify, and the design of the welded hull and the integration of armor into the structure is new even for Germany and Italy. How good it is to have such a big ship for the Soviet Union to practice, there is no problem, I am the first in the world of science and technology in Germany, and if there is a problem, it is also because I have not played a ship in Germany for 20 years after World War I, you have to understand, anyway, you don't have to pay for it yourself.

At Reinhardt's request, Peter the Great changed to four axles according to the advice of Italian designers, and improved the propeller layout, which would be much better than the traditional German three-axle. This also allows stubborn German designers to have a new understanding of Italian shipbuilding technology after seeing the results, and promote the future technological integration of the two countries.

As for the 150 and 105 guns on the Peter the Great, they were actually helping the German Navy clear its stocks. These two sea-only secondary guns were of limited use in the future, and Reinhardt was even less likely to be compared to the twin high-level dual-purpose 128mm guns that "should logically be given to the Soviets" battleships.

As for the optical instruments of Zeiss, that is also accumulating experience for Germany's own equipment for future naval warfare.

By the way, Peter the Great is also a battle cruiser, a fast battleship, and the historical Scharnhorst. It's just that it has a lot more problems than the historical Scharnhorst.