The launching of the Type 055 destroyer, Xinhuaguo did not publicize it too much, but it did not deliberately keep it secret, but it maintained a high degree of secrecy about the modification of another ship of the Navy, that is, the all-electric modification and underwater test of the "Yuan" class submarine.

Xinhuaguo has always attached great importance to the development of submarines, and the number of submarines can rank among the top three in the world, but there are few cutting-edge models, many old models, and the noise is even more difficult.

For this reason, he was ridiculed and ridiculed by foreign military experts, saying: "The nuclear submarines of Xinhua have left the port from the southern capital, and they can be heard as far away as Saigon in Annam." ”

In the past 10 years, the equipment of Xinhuaguo's submarine force has been comprehensively updated, and the proportion of new submarines has approached 80 percent. Several of the latest Yuan-class conventional submarines have been equipped with "air-independent" propulsion units (AIPs).

In this respect, the level of Xinhua's submarine technology has caught up with the international advanced level.

Conventional submarines have many advantages, such as cheap price and low maintenance costs, only about a quarter of those of nuclear submarines; Secondly, it is small in size, mobile and flexible, especially suitable for use in near-shore and shallow sea areas, and is even more useful with the transfer of the main battlefield at sea from the open sea to the near sea.

In addition, conventional submarines are much less noisy and have better concealment than nuclear submarines.

However, the weakness of conventional submarines is also obvious, the underwater diving time is short, generally no more than three to five days, and it needs to be recharged frequently, which undoubtedly increases the risk of being detected and attacked.

If there is one type of equipment in the army, navy and air force that most needs high-performance batteries, it must be conventional submarines!

In March, the manufacturing process of rare earth nano batteries was solved. Submarines belong to the priority supply of weapons and equipment.

Subsequently. The submarine force has a negative impact on the original conventional submarines such as the Ming-class, Song-class, and Kilo-class. Including the nuclear submarine, it has been fully electric, which has greatly improved its power, silence and other performance.

At that time, there was a "Yuan" class submarine that was just halfway through construction, which just saved the effort of modification and installed hundreds of tons of B-type rare earth nano batteries directly in the power compartment.

The original large number of diesel engines and generators were all cancelled, and the front battery compartment was changed to a reserve mine bomb compartment, and the rear battery compartment was used as a supply compartment. Can carry more supplies.

The crew was reduced from 65 to 40, and the space for movement in the submarine was expanded, and living conditions were greatly improved.

Because there are no vibrating machinery in the power system, only simple damping measures are carried out at the junction between the motor and the hull, and there is no need for expensive and complex shock-absorbing floating raft technology.

This reduced the noise level of the submarine by one level.

For the first time, the shell of this brand-new submarine has been coated with "artificial shark skin".

Dongfang Special Materials Co., Ltd. has recently launched a nano plastic, combined with the sound-absorbing tile technology that Xinhuaguo has mastered, and developed a kind of shark skin according to bionics, its surface is all erected small spines, and the planes of these small spines are all along the flow line of water.

When the seawater sticks to the epidermis, it forms a laminar flow along these small spines. It can greatly reduce the resistance of the water and increase the speed of the submarine.

After getting into the water. The new Yuan-class all-electric submarine achieved a speed of more than 33 knots in tests, 11 knots faster than the original 22 knots, making it the fastest conventional submarine in the world.

It has been proved in practice that this "artificial shark skin" not only speeds up the submarine, but also significantly absorbs the noise generated by the submarine itself, as well as absorbs and weakens the sound waves of the enemy's sonar detection, which is stronger and less expensive than the new generation of silencing tiles.

At 22 knots, the noise of an all-electric submarine is only 91 decibels; Reduce the speed to less than 10 knots, and the noise is less than 88 decibels; Even at speeds of more than 30 knots, the noise is only 100 decibels, which almost makes a qiē anti-submarine means helpless, which is the real "deep sea black hole".

Theoretically, when the new "Yuan" class all-electric submarine advances at a cruising speed of 6 knots, it is enough to dive underwater for more than 10,000 nautical miles, nearly half a year.

Of course, there are certain limits on the physical fitness of the crew and the amount of food they can carry, and it is impossible to last so long.

If it dives at a speed of 22 knots, it can sail continuously for more than half a month, sail more than 8,000 nautical miles, be able to perform 95 percent of combat missions, and even be able to compete with attack nuclear submarines under certain circumstances, becoming a cheap underwater killer.

However, the range of most submarines when performing combat missions is within 5,000 nautical miles, and when they are active in the theater of operations, the distance they dive at maximum speed rarely exceeds 1,000 nautical miles.

If necessary, it can be charged from the shore or even from other ships at sea to the full-deck submarine via a guò transmission cable, which of course can also supply electricity to the outside.

There is no doubt that this is a cross-generational progress.

Although in terms of submersible performance, all-electric submarines are still inferior to nuclear submarines, but compared with any previous conventional submarine, the advantages are extremely obvious.

The high-performance battery makes the combat power of the conventional submarine be greatly improved, and the super silence makes the submarine have the greatest concealment, which can completely make the enemy's sonar detection device fail under the background noise of the ocean and cannot be detected at all.

It can be said that at a certain level, this all-electric conventional submarine is even more difficult to guard against than a nuclear submarine.

The new "Yuan" class submarine, which has been completely refitted, can be said to be a new type of submarine, which is completely different from the original submarine in terms of numbers, except that the shell of the "Yuan" class is used.

And the design of the next generation of all-electric new submarines, which is close to completion and verification, has reached the stage of "drawing freezing".

The next generation of all-electric submarines will use a number of new technologies, and the displacement will be somewhat larger than that of the "Yuan" class submarines, because of the addition of a vertical missile launch bay, reaching 3,800 tons, equipped with more than 500 tons of C-type rare earth nano batteries, and replacing with permanent magnet motors with a maximum power of 10,000 watts.

The new all-electric submarine will give full play to the advantages of rare earth nano batteries, with a maximum diving distance of more than 20,000 kilometers and a maximum diving speed of more than 45 knots.

After the new submarine enters service, it can completely replace the expensive attack nuclear submarine.

In terms of cost, five or six all-electric submarines together can catch up with an attack nuclear submarine with a displacement of tens of thousands of tons.

And in terms of combat capabilities, one attack nuclear submarine will certainly not be able to compare with five or six all-electric submarines.

In fact, the real killer features of the Navy's new ships are the two high-tech weapons of smart missiles and smart torpedoes.

The Type 055 destroyer is equipped with as many as 64 intelligent missiles, including three types of anti-aircraft, anti-ship and cruise missiles, and is equipped with so many intelligent missiles, and it is even higher than the Zumwalt-class destroyer in terms of combat power.

In a computer-simulated actual combat of the Navy, a Type 055 destroyer alone wiped out a detachment that was not weak, and it was unscathed.

And all-electric submarines equipped with intelligent torpedoes also surpass the most advanced conventional submarines of various countries in terms of combat power, and even attack nuclear submarines.

As long as the first attack is achieved, the opponent basically has no power to fight back, after all, the intelligent torpedo is more than one generation ahead of the current mainstream torpedo in terms of technology. (To be continued......)