PS: Thank you for the evaluation votes cast by the book friends "Chess Promotion", and continue to ask for recommendation votes ^_^

However, Hu Weidong's requirements cannot be said to be vexatious, after all, the Omaha-class light cruiser is an old ship type with a large number of World War I design styles, and there are many places in the design that are not suitable for World War II, although Hu Weidong is not an expert in ship design, but as a senior World War II warship enthusiast, he still knows the lessons summed up by later generations, as long as these opinions are put forward, experienced Americans naturally know how to modify them.

The United States will naturally benefit from this process, but because of the contempt of the US Navy and shipyard personnel for their Chinese counterparts, few people can humbly learn the concept of naval warfare from China, a "backward country", not to mention that a large part of those improvement opinions are specifically aimed at China's national conditions and the military situation of the Chinese Navy in the future, and the Yankees cannot learn if they want to

Although Hu Weidong, a traverser, is very dissatisfied with the current Omaha-class light cruiser, for the Chinese Navy, which still has a weak foundation, the performance of this light cruiser is actually very good, and its basic parameters are as follows:

Displacement 7162 tons / 9296 tons

The main gun is single-mounted 152mm×10

The secondary gun is single-mounted 76mm×8

The dimensions are 167.8 meters long, 16.9 meters wide, and the draft is 6.1 meters

Power 90,000 hp

It has a range of 8,460 nautical miles / 10 knots

Maximum speed 35 knots (design)

2 carrier aircraft

The crew of the ship is 800 people

Side armor belt: 76mm

Deck: 38mm

Turret: 51mm

Command Tower: 32mm

From the above data, it can be seen that although the ship is relatively old, it is quite good in terms of firepower, armor, speed and endurance, but in Hu Weidong's view, there are many obvious flaws in the design of this warship

First of all, the air defense capability is weak, although it is equipped with many large-caliber high-level dual-purpose guns, but it is not equipped with small-caliber antiaircraft guns or anti-aircraft machine guns. As a result, once the enemy's bomber closes the distance in air defense operations, the ship will completely lose its ability to resist; Secondly, there are too many guns of 152mm caliber. Although the 152mm naval guns are not incapable of anti-aircraft shelling, the air defense efficiency is far from that of the more specialized 127mm high-level dual-purpose guns, and Hu Weidong would rather give up most of them to free up space and load on the ship. to equip the indispensable close-range anti-aircraft weapons; The maximum speed is slow, and it can't run the heavy patrol of the devil, once it encounters. That is, you can't fight and fight, and you can't escape, how can you get the word "miserable"; To Hu Weidong's surprise, Zhongfu International's request for improvement in response to this point has made the U.S. government a little less vigilant, and a little loosening control when selling equipment and jishu. This was undoubtedly an unexpected surprise; In addition, for the Chinese Navy, which in the future will mainly "use aircraft against enemy ships" and "warships to assist air defense," the excessively thick side-chord armor of this type of light cruiser is undoubtedly very weak, on the one hand, it occupies too much load, and on the other hand, it is completely useless in air defense operations. It is difficult for aerial bombs to blow up the side chord of a warship (theoretically it can be thrown by inertia, but it is too difficult to operate in real combat. And the powerful torpedo could not stop it at all, even a light aviation torpedo with the smallest charge

Hu Weidong is not an expert on warships. However, his understanding of artillery fire is unparalleled in the world, and he knows the trend of the development of warships in later generations, and the Third Fleet has many examples for reference, so many of his layman's opinions are almost to the point, to the surprise of the negotiators of the US Navy, so he readily accepted most of the requests, among which the hull was first refitted, the thickness of the main armor on the side chord was reduced to 25mm (Note 1), and the armor of the deck and the command tower were thickened to varying degrees. As a result, the standard displacement of the two cruisers was reduced to less than 7,000 tons (because of the addition of a lot of near-fire guns, in fact, it was more than 100 tons lighter. In addition, the bow of the ship has been changed to a bulbous bow that can increase the maximum speed (this jishu will soon be widely used by the US Navy, so there is no need for Hu Weidong to hide it anymore.) ), so that its maximum speed reached 36 knots, and the endurance was reduced a lot, to 3000 nautical miles/18 knots (the bulbous bow used was chosen to reduce the maximum effect of wave drag at maximum speed, so the low-speed cruising performance was greatly affected, resulting in a large increase in the [economic] cruising speed). ）

As for the ship's firepower configuration, which Hu Weidong was more concerned about, after some communication and negotiations between the two sides, although the US Navy did not believe that China could build more guns of all kinds than the United States, in line with the idea of putting customers first, it still came to the basic data such as the weight, caliber, and barrel length of the various guns produced in the border area, and on this basis, adjusted the gun positions on the ship according to the requirements of the Chinese buyers. After more than three months of refitting, only two of the front and rear of the 152mm main guns were retained, while the remaining eight gun positions were replaced with four single-mounted 127mm high-level dual-purpose guns and four double-mounted 88mm anti-aircraft guns, and at the same time, eight 76mm secondary guns were replaced with double-mounted 57mm anti-aircraft guns in accordance with the requirements of the Chinese side, which greatly enhanced the long-range air defense capability.

The reason why the 57mm anti-aircraft gun, which had been abandoned by Hu Weidong, has restarted production and equip the troops is thanks to the progress of the radio proximity fuse Jishu. Things have to start with the invention of the transistor, and it didn't take long for this new thing to be applied to the proximity fuze, which greatly reduced the volume of the radio proximity fuze used in anti-aircraft shells, so that it can be used for anti-aircraft shells with a caliber of less than 75mm, but considering how the aircraft is much stronger than the human body, the lethality and killing radius of the shrapnel will be seriously insufficient if the charge of the anti-aircraft shell is too small, coupled with the problem of processing difficulty, so the caliber can not be too small, 57mm is almost the limit, And this is also thanks to the invention of the "rod warhead" and its wide application in proximity fused anti-aircraft shells

Note 1: The influence of conventional wisdom is not so easy to reverse, and this thickness of armor can also prevent the two light cruisers from being bullied by army field guns without armor-piercing shells, and it would not be fun at all if a situation like the "Purple Quartz Incident" happened to the Chinese Navy (to be continued). )