I have taken an interest in HMS Astutes hull shape of late. It seems to be for the most part "an evolution" of British SSN design and yet at the same time has made a couple of departures from the styling that one might predict of British SSNs.
If these two boats generally have the same features, a very similiar mission profile and capabilities you would think that a component of that capability would be hydrodynamic efficiency. Surely a highly efficient hull shape would be ideal for both boats. Surely the laws of hydrodynamics are universal and would result in research on both sides of the altantic steering the two designs into very similar overall shapes?
Then if this is so, why is it that Virginia looks like it is designed to an efficient hydrodynamic shape and Astute looks draggy and boxy? Can we deduce from this that Astute has other capabilities that have hindered efficient hull form? Does Astute have a different set of hydrodynamic priorities?
Are there some cunning new discoveries about vortexes and flow that the Astute utilises and makes those strange bulges tot he rear of the sail , efficient? ( surely they cannot just be for crew walking access to the back end of the boat)
would appreciate comments, thoughts, etc....
"Baldrick ,you would'nt recognise a subtle plan if it painted itself purple and danced on top a harpsichord singing "Subtle plans are here again!!" Blackadder.