Would it not save Australia a lot of time and effort, to use the Astute class hull as a basis for our Collins class replacement.I found the detail on the procurement methodolody, very interesting, particulalry as it uses the AWDs as a practical example.
from the Australian Strategic Policy Institute Report (linked previously) pages 5-7:
It is most probably a tad larger than we need, ( 7800t x 97m x 10.4m ) but to quote that mythical Brirish Admiral - steel is cheap and air is free.
Austute has already been designed to accommodate Tomahawk Block IV ( Tactom )
Austatute has been designed around the Rolls Royce PWR2 nuclear reactor, so there should be plenty of room for a conventional diesel/aip/electrical propulsion unit and X shaped tail planes as per Collins class hull.
We would have a proven hull with plenty of room for crew, weapons systems and propulsion system.
We could even get the hull segments fabricated over in the BAE Marine Barrow Yards and shipped over here for final assemble in South Australi, it would save us a small fortune.