I know that it is a few years off but it has been said that HMS Ocean will need replacing in about 10 years. How about this idea: When the 2 CVF's have been built, build another hull but with an interior optimised for amphibious. As the hull will be virtually similar it means that the build costs will be cheaper, and we would get a really capable RM helicopter ship with spaces for many helicopters, a large hospital, command and control, vehicles lots of booties etc etc. In addition it would be able to take Osprey, whereas the Ocean might be just big enough to land one, but not to operate a few! I reckon this idea would be cheaper than designing a unique vessel, and much more capable. And as the ME side of things etc would be the same as the CVFs then you get cost savings as opposed to operating different ships.