Re: PLAN submarines Thread II
... same goes for the SSBN conversion to SSGN. As the result in shift in think in world navy would it not require the next gen SSBN to be more like SSN i.e. have the speed to keep up with carrier groups, the ability to defend itself in enemy waters.
I do not think this will ever happen.
You may be confusing the trend to merge SSN and SSGN...but it will not happen with the SSBN.
The SSBN is purely a strategic asset. it's ro;e is clear, principally to deliver retaliatory nuclear strikes against an aggressor that the aggressor cannot stop. It could also be used as a first strike platform, but most nations relegate it to a second strike weapon to ensure deterrence. As such, they will remain either out in very deep, very remote areas, or in close "bastions" where they can be protected and will not ever travel in company with carriers or other task forces.
They are too valuable an asset in strategic terms, and any use of them in launching conventional missiles would invite a opposing force to hunt them all down as a tactical weapon and sink them. That becomes a very dangerous and destabilizing issue because hunting down the strategic weapons could lead to a nuclear launch...figuring that the opposing force is trying to take out your second strike capability.
SSGNs are different. They are tactical weapons and meant to provide significant precision strike capability against distant target, or against ships depending on the type of missiles they carry. The trend has been to begin combining the capabilities of the SSGN into the SSN. MAny SSNs have already been carrying long range, precision strike cruise missiles for many years. But increasing the number is the trend so the Rssians do not have to build separate Oscar class vessels, and so the US can retire the Ohio SSGN conversions without having a new class replace them.
So the Russian YAsen class SSN will fill that role ion the future carrying either 32 or 40 VLS for long range cruise missiles (and weighing in at 12,800 tons submerged) but still able to perform the SSN role, and the enlarged Virginia Class which will carry 40 VLS cruise missiles and still perform the SSN roles just about as capably. The newer Virgnina Class SSNs or going to end up displacing close to 10,000 tons themselves.