Would the armor scheme differ between the 11-inch battleship, 15-inch battleship, and carrier versions?
Short answerProbably not between the two battleships, but the carrier would use a thinner belt and role-specific protection.
NotesA common hull does not require every role-specific fitting to remain identical. Protection changes little between the 11-inch and 15-inch battleship versions. The carrier would use a thinner armored belt. Standardization therefore applies to the hull and machinery while still allowing the carrier's protection and upper works to change.