readx; After the navy corruption case came out in mid-1934, a large number of high-ranking naval officers were dealt with, and more than 20 people were directly shot, and then hundreds of people were sentenced by military courts. Pen % fun % Pavilion www.biquge.info

It must be said that this sharply reduced the prestige of the Navy among the people.

Let's not talk about the impact on the country, the navy is also very influential, because the naval officers involved in the case have a very large number of high-level generals, these generals have been dealt with and the navy has vacated a large number of positions, as the so-called people are happy and some are worried, the personnel involved in the case are naturally miserable, and those who are not involved in the case have obtained great benefits from it, taking over the positions of a large number of personnel involved in the case, resulting in the largest personnel transfer in the history of the navy, not to mention some middle-level positions. The commanders of the four major coastal defense fleets alone were rotated, and then the chiefs of the major departments in the Admiralty were also transferred, and then this opportunity, Chen Jingyun did not hesitate to promote a large number of young naval officers of the new generation.

In the long run, this naval corruption case has dealt a very big blow to the battleship faction within the navy, and the decrease in the strength of the battleship faction also represents a sharp increase in the strength of the aviation faction, and when it is gathered in the development of the navy, there will be an increase in the funds and intensity of the training of aircraft carrier formations and a reduction in the training funds and intensity of battleships.

Then, on this occasion, Guan Shijie also used a tough attitude to approve the overhaul plan for the two aircraft carriers, the Huashan and Huangshan, at the internal meeting of the Navy.

These two aircraft carriers were built at the end of World War I, and have been in service for more than ten years now, and the technological progress of these two aircraft carriers has been very great in the past ten years, and the hardware facilities of these two aircraft carriers have been a little backward, after the end of the war in 1931, Guan Shijie and others wanted to upgrade and refit the two aircraft carriers in the middle of the term, but they have not been able to make the trip due to the pressure of military spending within the navy.

And now it's finally possible.

"This time, the upgrade and refit plan of each ship is included in the continuation of the seventh phase of the Navy's development plan, and it is scheduled to carry out large-scale mid-term refit of Huashan, Huangshan, Shiguang and Shinan in batches!" Guan Shijie reported to Chen Jingyun about the large-scale refit plan of the navy this time.

"The refit plan is mainly to upgrade communication equipment, upgrade fire control and install electronic radar, in addition to reinforcing the underwater protection of Huashan and Huangshan, and making minor adjustments to the hangars and decks of the two ships!"

Chen Jingyun nodded while listening, he had psychological expectations for this large-scale upgrade and modification plan, the upgrade and modification is mainly based on adjusting subtle problems and upgrading electronic equipment, and will not carry out large-scale modifications like major surgery, and there is no upgrade plan involving the power system.

There are many reasons involved, first of all, the first point is that China's electronic technology has developed very rapidly in the past ten years, which is not only reflected in military electronic technology, but also in civilian electronic technology, the total production of radios, electric fans and other related electrical equipment is China's main export commodities in recent years, and the technology is not much worse than that of European and American countries. In terms of military products, such as radar and wireless communication equipment, because Chen Jingyun began to let the following research laboratories conduct research and development early, it has made great progress now, and the radar for warships has been officially finalized, and the first generation of large-scale radar for ships has begun mass production, which will be successively equipped on existing and newly built ships.

And it is the finalization and mass production of radars that is one of the main reasons for the large-scale upgrading and modification of the Chinese Navy.

Compared with the rapid development of the electronics industry, the development speed of the power system is still relatively average, and the steam turbine technology used by warships cannot be greatly advanced overnight, and it involves a large number of basic industries, and it is difficult to have too large leapfrog development if the overall industrial level does not rise. In the early thirties, the level of steam turbines in China was not much higher than in the twenties, for example, the power units used on the Shaohao were not much higher than those of the Songshan-class aircraft carriers built in the twenties, and this situation occurred not only in China, but also in Britain, France, the United States and other countries. Parsons steam turbines have evolved to the point where they are today, and there is really not much potential to be tapped.

In this case, the Chinese Navy wants to improve the fundamental surname through the development of high-pressure impulse steam turbines, and high-pressure impulse steam turbines are actually not a new thing, the United States has begun to adopt them during World War I, but at that time industrial technology has not developed to that point, and there are many problems with high-pressure impulse steam turbines in the United States at that time, and even the Americans themselves have given up this technology.

However, after entering the thirties, the level of industrial technology has been greatly developed, and the initial can meet the manufacturing of high-pressure impulse steam turbines, it is for this reason that the Chinese Navy has decided to develop this kind of steam turbine, of course, it is also a little difficult to engage in this kind of steam turbine by China, and the difficulty is not the design, but the speed of precision machining, in order to solve these problems, China has introduced a large number of precision machining equipment from all over the world, imported from the United States, imported from France, and imported from Germany.

And the import of these high-tech industrial equipment was actually the main import commodity of China in the thirties.

"After many previous tests, our radar surname is still quite good, although we have not yet been able to know how the electronic detection program of the United States and the United Kingdom is developing, but we should still be ahead in this aspect!" Guan Shijie said.

Chen Jingyun secretly said in his heart: If this is not ahead, I should have arrested and shot all those researchers, more than ten years in advance, countless funds have been spent, and such a clear research and development goal has been given, the research and development progress of this radar is still slower than that of Britain and the United States, which is petty.

Chen Jingyun said: "The equipment of the radar must be implemented, not only the capital ships must be equipped, but other auxiliary ships can also be properly equipped!" ”

Speaking of this, he paused for a moment and said: "Also, although the refit plan this time is mainly focused on aircraft carriers, our four battleships should not be left behind, and they must also be properly refitted, and the radar and protection level must keep up." Otherwise, they will not be able to face future battles at sea! ”

Guan Shijie's face was slightly stunned when he heard Chen Jingyun say this, you must know that he vetoed the upgrade and modification plan of the Yandi not long ago, why, in order to divert these modification costs to the two aircraft carriers.

However, Chen Jingyun said this today, and Guan Shijie could only say: "Well, they will be added to the modification plan again and again, but according to the London Naval Treaty, we cannot upgrade and modify the main gun and power system, and the protection can only increase the underwater protection part." ”

At the time of the London Naval Treaty, the Chinese Navy, in order to strive to build another 25,000-ton capital ship, promised not to carry out a medium-class major modification of the four battleships, and the main guns, surface protection, and horizontal protection were all inadequate.

Chen Jingyun said disapprerovitically: "It's okay, just upgrade and modify the electronic equipment first, and other aspects can be postponed." ”

"By the way, I remember that your navy's heavy bomb research program is almost good!" Chen Jingyun casually picked up another report, which was submitted by the Guns and Artillery Section under the Navy's Ship Administration Department, which said that the Navy had carried out a heavy bomb research and development plan.

Guan Shijie was naturally clear about this matter, and immediately said: "It has come to an end, and the final test is currently underway!" ”

With the development of technology, the Chinese Navy is also trying to further improve the combat effectiveness of the four battleships, and it is impossible to replace the main guns, but the Navy's Ship Administration Department has come up with another way, that is, to increase the long-range strike power by increasing the firing elevation angle of the main guns and increasing the weight of the shells.

As the naval engagement distance continues to widen, the angle of the shells of the large naval guns is getting larger and larger, which means that the probability of hitting the horizontal armor of the enemy ship exceeds the probability of hitting the side armor of the enemy ship. Therefore, the navy proposed to fire a heavier shell in exchange for a larger hit angle and at the same time, let the shell obtain a larger terminal energy at the moment of hitting the enemy ship.

This firing mode is called 'low-velocity heavy bullet'

Low-velocity heavy shells may not be of much use for small and medium-caliber naval guns, because small-caliber naval guns require a higher rate of fire and do not require much armor piercing. In actual combat, the vast majority of naval guns below 155 mm caliber are firing high-explosive shells, and there are few opportunities to use armor-piercing shells, because armor-piercing shells below 155 caliber have no effect on thick-armored capital ships, and the auxiliary ships with thin armor to hit the enemy are likely to pass through directly, so the small and medium-caliber naval guns are mostly high-explosive shells, and the implementation of deck-sweeping tactics and the amount of projection per unit time pursued do not have great requirements for armor-piercing ability.

For large-caliber naval guns, armor-piercing ability is very important, after all, they are facing the enemy's battleships, which are three or four hundred millimeters of thick armor, so the stronger the armor-piercing ability, the better. And the research and development of new artillery shells within the Navy is not much less than that of new naval guns.

At present, the armor-piercing shell used by the navy's 16-inch naval gun is the 1925-type armor-piercing shell, which is an improved version of the 16-inch shell imported by China from the United States, and the surname can be improved very limitedly, while the newly developed new shell is the 1933-type armor-piercing shell, which weighs much more than the old model of the shell, and there are two kinds of 1933-type armor-piercing shells, one is the A-type bullet used by the 16-inch and 50-fold caliber main guns on the Yandi and the Yellow Emperor, weighing 1,200 kilograms. Compared with the 950 kilograms of the 1925 armor-piercing A-type projectile, the weight increase brings greater armor-piercing ability, and in the course of the test, at a distance of 20,000 yards, the armor-piercing capacity of the contraside armor reached 480 millimeters, which is a 20% increase compared with the previous one. At a longer distance of 30,000 yards, the improvement is even more, and the armor-piercing ability of the opposing side armor has reached 360 millimeters, an increase of 30 percent, and the penetration ability of the horizontal armor is increased even more than the improvement of the side armor.