New sailless SSN (provisional)

bsdnf

Senior Member
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Another point is why Sutton depicted it as a double/hybrid hull. It's likely because satellite imagery shows a high freeboard, pump-jet nozzles and the upper half of its X-rudder are almost completely above the water, indicating high buoyancy.

We all know that building a single hull submarine is not a problem for PLAN, so why did the 09X still opt for a double/hybrid hull design?

The answer is likely still that it's a UUV carrier: it could, like the Belgorod and SSN-23 Jimmy Carter, have added special sections to accommodate large UUVs.
 
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magmunta

Junior Member
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I think the width might be more than just 10-11m. This is just the waterline, the actual dimensions should be more

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My overlay should be good enough here.. Though of course it's always rough with satellite angles and distortions and whatnot

VLfOKUV.png
As for the width, the sub might be more than 50% submerged and hide its true width; that is you might not have measured the widest central part. So, it's better to say at least 11m in diameter/width.
 

Neurosmith

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NavalNews is speculating that the Bohai submarine is the same type as the JN sailless submarine rather than a 2nd unit of the 09V class, which to be honest doesn't make sense. It's unlikely that two shipyards would simultaneously launch two units of a brand new class. There hasn't been such a precedent in PLAN history, IIRC.
 
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Blitzo

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NavalNews is speculating that the Bohai submarine is the same type as the JN sailless submarine rather than a 2nd unit of the 09V class, which to be honest doesn't make sense. It's unlikely that two shipyards would simultaneously launch two units of a brand new class. There hasn't been such a precedent in PLAN history, IIRC.

They aren't necessarily "simultaneously" launched; chances are they could be offset by a few months (we don't know when the JN hull was specifically launched afaik).

Launching two boats of a new class in close interval from two different shipyards also isn't wholly unprecedented for the PLAN, because the matter with that is "building a new class in two different shipyards immediately without prior verification of a new hull class"... and technically when 055 started construction between JN and DL back in the day it was also basically near simultaneous (with offset between JN and DL's first hulls partly because DL's first two 055s were built alongside each other in the same drydock and simultaneously launched).
 

AndrewS

Brigadier
Registered Member
More recently, this also happened with the first two units of the Type-054B built at two different shipyards.

Then there was a gap as they presumably tested, worked out all the bugs and prepped for mass production.
 

AndrewS

Brigadier
Registered Member
I do then wonder how is the pressure hull designed, Oscars had a circular pressure hull with side sponsons of missile launchers all wrapped into a single fat outer hull. If this new submarine has a similar design than it would likely only have VLS on the side, however if it were to have a single large oval pressure hull you could actually have VLS cells across the entire beam. Though that will likely cause structural and weight issues and limit maximum depth which may or may not be important depending on the exact role.

It is also probably important to note that the Oscars were huge twin screw, twin reactor subs, if this thing wants any semblance of speed, it'll likely also adopted a similar propulsion arrangement as the Oscar class. Return of the twin screw subs?

The Oscar had two reactors and two acres because they wanted SSN speeds of 33 knots, but that is a really noisy speed.

If they had gone with just one reactor and screw, they could get 26? knots. That would be near the design silent speed of 28? knots for the Yasen and Virginia.
 
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