Just looking at the data, these two anti-aircraft guns can almost be said to be the first among anti-aircraft guns of the same caliber, but if you only want to pursue the data on paper such as firing height and range, the five countries of the United States, Germany, Britain, and France, which have a better industrial base and higher scientific and technological level than Japan, can make anti-aircraft guns that look more BT as long as they are determined. The reason why Germany's 88mm anti-aircraft guns are so famous in history is not only because of the miraculous effect that Rommel received from hitting tanks and its amazing muzzle velocity of shells, but also because of its terrifying rate of fire of up to 25 rounds per minute, while Japan's anti-aircraft guns have always been weak in this regard, because the faster the rate of fire of anti-aircraft guns, the shorter the barrel life, and the devils who lack resources and have always been thrifty are certainly not willing to do so. But historically, in the face of the Americans' carpet bombing, Zuihou they had to use the number of anti-aircraft guns to make up for the lack of rate of fire (the density of fire of three Japanese anti-aircraft guns was equivalent to that of one German anti-aircraft gun of the same caliber), and the consumption of resources was greater

This old problem has not been changed in the two new anti-aircraft guns, but Hu Weidong did not disdain these anti-aircraft guns, on the one hand, because he has a proximity fuse and a gun aiming radar that has just been developed, which can greatly improve the hit rate and make up for the lack of rate of fire to a large extent, and at the same time, there is an excellent small-caliber close-in anti-aircraft gun that is ahead of Shijie; On the other hand, because the Central Plains Border Region still does not have the ability to design and produce large-caliber antiaircraft guns, it is natural that if one of them is broken, there will be one less, so the relatively durable Japanese-style antiaircraft guns are more in line with the needs of the 15 th Army

Since the time when the two anti-aircraft guns were finalized. Compared with the "Haruna" battleship at this time in history, the current "Haruna" not only has changed the type of anti-aircraft guns, but also greatly increased the number of 8 Type 98 120mm anti-aircraft guns and 16 Type 98 75mm anti-aircraft guns, which are much stronger than the original 8 127mm anti-aircraft guns with inferior performance. It is not an exaggeration to say that the air defense capability has increased tenfold.

In addition to these large-caliber anti-aircraft guns, the small-caliber anti-aircraft guns on the "Hazelname" also added four new triple 25mm anti-aircraft guns in addition to the original 10 twin-mounted Type 96 25mm anti-aircraft guns, but Hu Weidong couldn't help frowning slightly after seeing it. The Japanese Navy's Type 96 25mm anti-aircraft gun was one of the worst-rated small-caliber anti-aircraft guns during World War II, and its triple-mounted modification was even more rubbish, because the one in the middle of the three barrels was difficult to reload during firing. The distance between the barrels on both sides is too far, and the loader is not equipped enough, it is difficult to reload at the same time, in fact, after the first salvo, there is only the equivalent of the firing firepower of a single load, and the combat effect of the triple anti-aircraft gun is almost the same as that of a single load, can there be anything more rubbish than it?

Moreover, the increase in the firepower of the "Haruna" battleship came at the cost of increasing the load, which was bound to affect its speed and range. However, when inquired, the Japanese captain replied that after the replacement of the new ship-based heavy oil boiler and steam turbine, the total power reached 152,000 horsepower, so although the displacement increased a lot, the speed was greatly increased, exceeding 31 knots. The endurance is even more amazing, and it can still sail continuously for 10,000 kilometers at a speed of 18 knots

"I remember that even after the second refit, the power of the Kongo-class battleship was still only 136,000 horsepower? Why is there so much more now? Hu Weidong was about to ask the naval captain why the "Haruna" was equipped with a different power system from the other three Kongo-class battleships, but he talked about another 10,000-ton giant ship in the port

After Hu Weidong learned that the heavy cruiser was the "Ligen", the lead ship of the new "Ligon class", he quickly figured out what was going on. In the course of the construction of this new heavy cruiser. Japan has developed a new type of ship-based heavy oil boiler with a total power of 152,000 horsepower and a supporting steam turbine, because the "Haruna" battleship has begun to be equipped with a 136,000 horsepower power system at this time, there is no chance to replace this new heart with more powerful power, after all, the loss of this kind of large modification project is very large, and 136,000 horsepower is actually not small, and the Japanese who have always been thrifty will not be so extravagant, The new power system was only used on warships that were still under construction, such as the Tone-class heavy cruisers. But I don't know if this time and space is the butterfly effect caused by Hu Weidong's crossing, the modification of the "Haruna" battleship was more than a month later than in history, just caught up with the opportunity, and it is precisely because of such a strong power that Japanese designers dared to add so many anti-aircraft guns to the "Haruna" battleship...,

"It seems that the history in memory can really only be used for reference in the future", Hu Weidong thought with mixed feelings, and the performance parameters of the "Haruna" battleship he learned were:

Displacement: 3260036500 tons

Overall length: 222m

Width: 31.02m

Draft: 9.31m

Endurance: 18 knots at 1,0000 knots

Speed: 31 knots

Firepower: 4 twin 356 mm 45 x diameter main guns (8 in total), 16 152 mm secondary guns, 8 120 mm anti-aircraft guns, 16 75 mm anti-aircraft guns, 4 triple 25 mm anti-aircraft guns, 10 twin 25 mm anti-aircraft guns.

Armor: broadside waterline armor belt 203 mm, deck 96165 mm, dome armor 133 mm, turret 280 mm; Command tower 254 mm. Total weight of armor: 10918 tons.

Establishment: 1,405 people

Compared with the "Haruna" at this time in history, the change is not insignificant, but if it is compared with the "Tone-class" heavy cruiser, this change can only be regarded as pediatric. Not to mention anything else, even the most important main gun is different from history, the caliber of 203mm has become 240mm, and this has caused a series of changes

Note 1: It is strange that although there is a projectile muzzle velocity that other anti-aircraft guns cannot match, the firing height of German anti-aircraft guns is not very prominent, only about the same as that of Japanese anti-aircraft guns with an initial velocity of shells less than ninety percent of them, probably because of the large flight resistance of German shells, considering the incomparable terrifying rate of fire of German anti-aircraft guns, perhaps the bullet shape made sacrifices for this. In fact, since the B29 of the historical ascent limit BT was not put into the European theater, the German anti-aircraft guns did not have as high requirements for firing height as the devils, and it is understandable to make such a trade-off (to be continued......

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