Plan Type 095/096 Nuclear Submarine Thread


Tam

Major
Registered Member
But you are putting the cart in front of the horse and not the other way around. In order to put in all those anti vibration raft and the associated mechanism and damper, you need much bigger diameter than 10 or 11 m hull. That is design requirement there is no bargaining in it.
Looking at the cross section of the those sub It is cramp as hell there is no way you can fit in those anti vibration raft in 10 or 11 m diameter hull

Whether they design double or single hull it is irrelevant It all depend on the strength of Chinese metallurgy and how advanced they are in producing high strength steel . China design the sub with double hull following Russian practice But I think they can drop that practice now that their steel industry can produced high strength steel

Rail gauge should not be the limiting choice since they can support the carriage with large overhang
Like previous post, it has nothing to do with the quality of metallurgy. In addition the Russians are also using Titanium for their hulls.

People are looking at it in the wrong way. It is the machinery that is used to press the these extremely strong metal plates into complex hydrodynamic shapes. Compared to the US, the Soviet Union is behind on this.

So what do you do? You have an extremely strong pressure hull but because of your machinery, you can only press them to crude basic geometric shapes, like a cylinder. But your exterior hydrodynamic hull, which has thinner plates, can be pressed into any form you want, allowing for more complex geometry.

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There are still limitations in pressing pressure hull grade plating into hydrodynamic forms, which is why US submarines tend to have simpler, nearly generic designs. Even then, the pressure hull stops where the nose is, and the bow of the submarine where the sonar sphere is, is much thinner plate that can be formed into a more hydrodynamic curved surface, assuming they are not using polycarbonate.

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The Soviet Union also has another factor requirement for fast submarines to chase down US carrier groups, which require highly streamlined submarines, which in turn, require teardrop shapes with more complex surface geometries.

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Nowadays, China's machine tools have progressed leaps and bounds from the time of the Han submarine. Remember the one of a kind press used to roll press the 055's hull plates? China can certainly afford to drop the practice of building double hull submarines unless you find some other benefits of using double or hybrid hull submarines, regardless of the state of your machine press technology, like Japan does with the Soryu class.

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t2contra

Major
Even then, the pressure hull stops where the nose is, and the bow of the submarine where the sonar sphere is, is much thinner plate that can be formed into a more hydrodynamic curved surface, assuming they are not using polycarbonate.
Or is it because the spherical shape of the bow is inherently stronger and so does not need to be as thick as the body of a cylinder?
 

Tam

Major
Registered Member
Or is it because the spherical shape of the bow is inherently stronger and so does not need to be as thick as the body of a cylinder?
There are limits to how thick the bow can be, since you're going to be putting your bow sonar there and the sound has to pass through. The spherical bow with sonar sphere is entirely filled with water and it acts as a ballast tank. In the second illustration, the bow of the submarine is almost like a double hull section, with ballast tanks surrounding an inner cylinder that contains the berthing and diesel generator room.


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Tam

Major
Registered Member
A single hulled submarine is really never 'pure'. There are sections where it is double hulled in order to accomodate the ballast tanks. Aside from the bow, the ballast tanks are in the shoulder and waist of the submarine, where the pressure hull section would funnel off into a narrower section.

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The last part makes me think the ballistic missile section of the Type 094 is single hulled to accomodate the length of the tubes down to the floor, and the enormous humpback is a massive ballast tank which the long lines of sink holes for drainage would suggest.
 

banjex

Junior Member
Registered Member
Given the impressive build up the PLAN is conducting in other areas of her fleet, are they planning to speed up development and procurement of the next gen SSN? Having a modern SSN in large number is probably the biggest capability gap at the moment. I understand their nuke sub programs are very secretive.
 

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