Stop lying, the Yasen uses a single hull design not a double hull. It's like you can't even keep track of your own subs design feature.
Then let look at the simplified conclusion that for noise reduction is that multiple layers have a positive effect to reduce noise signature, again all well and good. But do you know how much space would be dedicated on a Virginia for noise reduction or the quality of the materials used ? You keep bringing up the difference in size but you keep neglecting (willfully or otherwise) to bring up the fact that much of t
You must try harder to be seen as an objective analyser of data, rather than a transmitter of propaganda materials.
So, we don't know the internal arrangement of the Yasen, there are pictures those showing the crew compartment with single wall, and the engine with double.
But it doesn't affect the basic wisdom that can be supported by a glazier : if you want quiet house then you need more glass layer, spaced by different distances. And that needs space.
So, if the diameter of the sub is 30% smaller ,then there is 30% less space for sound insulation and encapsulation - and any technological marvel and wunderweapon can only try compensate it.
It is the same discussion like F-35 vs any double engine bird, or a 2 litre tuned "race" car with lot of optical tuning vs a 6 litre real race car with simple design.
Oh, have you heard about towed sonar ? Do you know the connection between receiver spacing and frequency sensitivity?
I am still amazed, how can you be so emotionally motivated in a topic that is simple basic math and engineering ?
And how you can think that a swasplate monopropelant internal combustion engine is quiet?
Seriously ?
And frankly, the torpedo range is not something mythical, knowing the energy density of the propellant, and the water resistance it is damned easy to calculate every other parameter.
It is something that done in the generic "internal combustion engine design"class at any university (usually for more complicated engines)
it’s clear that our friend is basing his assessment on a number of assumptions not all of which are true.
his assessment on missiles is that a smaller missile cannot be Hypersonic. That American designers cannot design a smaller missile.
There is a USA project for 533mm supersonic missile, that is a SAM packed as AShM.
But that is short range, and not air breathing.
Problem is at subsonic a piece of brick can fly with good engine, at supersonic the missile must be designed carefully.
Means if you try to design the supersonic long range missile to the available space then you will end up with an inferior, but extremely expensive missile. (zumwalt guns ? )
The Russian VLS has 2.6 times more volume than the Mark 41 . And it is not an accident, but designed like this from the beginning.
Commercial ships are designed without limits on sound profile. This is as why bother. All modern military ships have some degree of sound profile reduction built in for the two obvious reasons, to reduce the potential of tracking by submarines and to assist escort and organic ASW aircraft in hunting said submarines. USN carriers are louder than a Attack Submarine but not as loud as your average Commercial tanker.
A commercial ship has no other activity than the engine .
The carrier has +6000 man on board, with lot of pumps, lifts , cooling systems, toilets , maintenance activities , arresting gears, radars, valves and so on.
So, if I have to make a guess then the carrier is more noisy than a commercial ship. Unless the USA navy put lot of efforts to make soundproof arresting gear.
He than assumes that Russian Boats have a larger Passive array then American boats. This fails to consider how the Sonars are built the US has and continues to use massive singular bow mounted spherical arrays. Sea Wolf class, Virginia class and eventually Columbia class added to that secondary hull mounted arrays. Yasen class is Russia’s First attempt at a bow mounted Sphere array as such the performance of that array is an unknown. However a Very good sonar on a very quiet ship is better than a very good sonar on a not so quite ship. Yasen is quiet but Virginia is quieter it’s quieter running at flank speed than Seawolf sitting at pier. That’s scary quiet and it’s only going to get quieter
Yasen spherical, but everything pointing to the direction the Yasen - M has conformal sonar.
The rest is mainly pointless, even if the noise level difference true (that we don't know) , the Russian submarines has magnitude bigger strike range, means it can afford to move slowly and listen carefully.
The Vriginia following battleship tactics, the Russian subs following carrier like strike strategy.
