Could the Admiral-class design that produced HMS Hood have carried 18-inch guns?
Short answerProbably; six 18-inch guns in three twin turrets could have worked.
NotesThe Admiral-class hull could probably have supported six 18-inch guns in three twin mountings. That arrangement concentrates enormous firepower in relatively few barrels, with each lost or disabled mounting taking away a third of the main battery. The proposal was technically plausible, although feasibility alone does not make it a sound strategic choice. This watch point shows how a large hull creates options while leaving the navy to judge gun count, weight, and combat resilience.