Hello,
If the planned CVF's were to be nuclear powered (fantasy) how would that affect the displacement, all other things being equal?
CVF would probably be lighter or at worst the same weight as diesel powered CVF, by using Nuclear power.
Instead of the 6 generators, there'd only be a max of 2 (both for emergency power generation only). The space that would be used for the diesel fuel for the ship would probably converted directly for use for AVGAS, allowing the ship to remain on station longer, rather than having to either RAS or visit port for the A/C fuel.
The area occupied by the generators would be subsumed by various monitoring equipment, control & back up systems for the reactor, as well as the various forms of protection needed to protect the ship from it too.
Systems Adict