As we all know, the 093 series of attack nuclear submarines has been derived from a number of improved models.
The main thing is to include the three models of A and 093B", with the emergence of the improved model of the 093 series of attack nuclear submarines.
The comprehensive performance of this type of submarine is also rising, and now it is only the advanced attack nuclear submarine of the United States and Russia, at least comparable to the French Ruby class and the British Astute class.
Even compared to the later models of the Los Angeles class, and the latest French Suflen class, it is not far behind.
It's just inferior to the American Seawolf and Virginia classes, as well as the Russian Yasen and Akula classes.
After all, the ceiling of nuclear submarines can only be touched by the United States and Russia, and the remaining P3 countries still have a long way to go.
Therefore, 093B is not the bottom of all the attack nuclear submarines of the P5.
After all, China's nuclear submarine construction started late, and it is extremely difficult to reach today's level.
Let's take a look at the increasingly powerful 093 series attack nuclear submarines.
First of all, both 093a and 093b are improved from 093 in small strides. Therefore, the change in displacement is negligible relative to 093.
However, by optimizing the design of the hull structure, the silent performance is improved; There is also the enhancement of integrated combat capabilities through the use of new sonar and processing systems, as well as combat systems.
093 attack nuclear submarine.
Construction of this type of nuclear submarine began in 1998, launched in 2001 and commissioned in December 2006.
The 093 attack nuclear submarine has a length of 107 meters, a width of 11 meters, and an underwater displacement of up to 6,096 tons.
With a total crew of 100 people, the power system is two 150 MW pressurized water reactors with natural circulation capabilities, which can reach underwater speeds of up to 30 knots with single-shaft and single-propeller propulsion.
After all, the Type 093 nuclear submarine was put into service earlier, and many advanced noise reduction technologies and sonar equipment and processing systems were not installed and used, resulting in its comprehensive performance being the last of the five permanent ones.
It is generally believed that the noise of the 093 attack nuclear submarine is between 110 decibels and 115 decibels. Bow sonar and broadside array sonar are installed, and towed line array sonar is not used.
At the beginning of service, the main ** were the YJ-83 submarine-launched anti-ship missile and the Yu-6 heavy anti-submarine torpedo.
However, after entering service today, it is also possible to use the YJ-18 submarine-launched anti-ship missile and the Yu-10 heavy anti-submarine torpedo.
After all, the construction of the 093 attack nuclear submarine began in 1998, and the silent technology at that time was not perfect.
With the progress of science and technology, the development of fluid mechanics and the emergence of various advanced technologies, the hydrodynamic noise can be reduced by optimizing the shape of the Type 093 nuclear submarine.
This is the 093A attack nuclear submarine with a slight improvement.
093A attack nuclear submarine.
Compared to the 093 nuclear submarine, the 093A is mainly an improvement on the command station enclosure.
The 093A attack nuclear submarine is mainly to add an arc-shaped corner filling in the front section of the command station enclosure.
The function of arc filling is naturally to reduce the hydrodynamic noise, so that the water can flow smoothly without directly impacting the junction between the enclosure and the hull, resulting in greater noise.
Other aspects of the shape are basically the same as those of the 093, so the shape of the command station enclosure can distinguish the 093 and 093A nuclear submarines.
After all, the improvement of 093A is relatively small compared to 093, so the improvement in performance is not too obvious.
Later, it was improved again on the basis of 093a, and this time the improvement was still relatively large, so it can be called 093b.
093B attack nuclear submarine.
Compared to the Type 093A, the shape of the Type 093B submarine has been improved a total of three times, the main difference is the difference in the protrusion at the rear of the command station enclosure.
The common feature of these 093B attack nuclear submarines is that the front section of the command station enclosure is filled, and the top of the enclosure is designed as an arc-shaped transition.
The purpose of both is to reduce hydrodynamic noise. Of course, the change in shape is the most intuitive to see.
As for the interior, there are also a lot of changes, such as the replacement of a nuclear reactor with natural circulation ability, the use of shock-absorbing floating rafts and other equipment to reduce noise during cruise.
It is generally believed that the noise of the 093B attack nuclear submarine is between 105 decibels and 110 decibels, which is 10 decibels lower than that of the 093 and 093A.
Don't underestimate just a 10 decibel reduction, through research found that when the noise is reduced by 10 decibels, it is.
This can reduce the detection range of the enemy's passive sonar by half.
In addition, there is a cut-out at the top of the cross-shaped rudder, which is clearly designed to facilitate the retraction of the towed line array sonar.
After all, no such openings were found on the 093 and 093A attack nuclear submarines, which proves that these two types of nuclear submarines were not equipped with towed line array sonar.
Therefore, the common feature of several types of 093B attack nuclear submarines is the change of the enclosure of the command station and the addition of towing line array sonar.
As for the specific model, it has always been extremely secretive, and the towed line array sonar currently used by the Navy's surface ships is mainly SJG-311 and SJG-206.
Today, the SJG-206 sonar used must have been replaced by the SJG-311.
After all, the performance of SJG-311 is much higher than that of SJG-206, the former is low-frequency active and passive sonar, and the latter is low-frequency passive sonar.
However, the SJG series towed line array sonar is a model used by surface ships, and as for which model the submarine is equipped with, it is still extremely secret.
The former is to reduce the hydrodynamic noise of the submarine, and the latter is to improve the situational awareness of the submarine.
The difference lies in the shape of the protrusions on the hull behind the enclosure of the command station.
In the first model, the bulge at the rear of the podium enclosure was stepped without any smooth transitions.
The second model, the junction between the bulge behind the enclosure of the command station and the hull, has a pronounced gentle slope transition.
In the third model, the bulge at the rear of the command station enclosure has been integrated into the hull. Although the bulges are still visible, they are extremely smooth compared to the first two.
It can now be concluded that the inside of the bulge at the rear of the command station enclosure of the 093B attack nuclear submarine is the retraction area of the towed line array sonar, and since it can be modified, the vertical launch system has been ruled out.
Moreover, it is impossible to be so close to the conning station enclosure that it is a new type of nuclear reactor.
Finally, it is the retraction and retraction equipment compartment of the towed line array sonar.
These three Type 093B nuclear submarines can still play a role in reducing hydrodynamic noise by optimizing the protrusion at the rear of the enclosure of the command platform.
Overall, after several improvements, the potential of the Type 093 submarine has been largely exhausted.
The noise is reduced to about 105 decibels, the Yu-10 heavy anti-submarine torpedo and the YJ-18 submarine-launched anti-ship missile can be launched, and the performance of the 093B attack nuclear submarine has reached a new level through the use of new sonar and combat systems and new processors.
093C attack nuclear submarine or 095 attack nuclear submarine?
However, in 2023, another satellite image of an attack nuclear submarine has appeared. It is clear that the nuclear submarine has a pump thruster, as well as a vertical launch system.
There is also a model of an attack nuclear submarine, again with a pump thruster installed, as well as a 12-cell vertical launch system.
In addition, a type of attack nuclear submarine appeared in the promotional video of the Harbin Technical University. This type of submarine is equipped with a 16-cell vertical launch system.
It can be seen that today's most advanced nuclear submarines equipped with vertical launch systems also have two different models. There is a high probability that one is 093C, and the other is 095, as for which model of the new attack nuclear submarine appears in the satellite image, it is difficult to say at present.
In any case, the overall performance of this new attack nuclear submarine is bound to catch up with the Virginia class. (Image source network, invaded and deleted).