Submarine Tactics

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Well of course, whether it is an SSK or SSN, the acoustic emanation is directly proportional to the speed of the sub.

No, acoustic signatures are generated by more than just cavitation. acoustic generation is only partially related to speed. At the most basic simple level - then yes. But as an overall answer - no.

The only advantage of a SSK over a SSN is a SSK could travel faster while on batteries making it quieter than if a SSN travels with the same speed, the determining factor in the overall acoustic audability of a SSK or SSN is the rate of cavitation.

Advantages and disadvantages are more related mission issues. Cavitation is one small part of platform detection.

Please stop making empirical statements that are not factual. There are at least 4 people on here who actually either have direct submarine service experience, ASW experience or have involvement with acoustic warfare. You are making misleading statements which are being presented as fact when they are fundamentally wrong.

 

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(Second question)
Very novel indeed, you have a very vivid imagination.

Thats something that you should really be absorbing yourself.

A factor that contributes to the distinct acoustic signature of contacts is the number of blades in its screw, a screw with less blades are likely to produce less cavitation and hence an acoustic signature.

acoustic warfare is far more complex than dumbing it down to "more propellors = less cavitation" - which is also horrifically incorrect.

I do actually work in an acoustic management area with submarines - which is why I have repeatedly asked you to be less empirical in making statements which not only generalise - but are fundamentally wrong.

the number of blades has minimal to do with cavitation and acoustic management - especially by stating that "more" reduces it. Some of the acoustically quietest diesel subs in the world have 4 blades and yet their contemporary diesel powered cousins have 7 (eg some Kilos).

acoustic mapping of a submarine involves far more than listening to blades turning. It involves issues of hull shape, blade design, propulsor design, behaviour, hull coating where approp etc...