What is your favorite big gun?
Short answerA speculative British 18-inch design is appealing because it opens a plausible route toward six 18-inch guns on a fast capital-ship hull.
NotesThe favorite is a theoretical British 18-inch gun whose development may predate the surviving postwar designs. The design possibilities include different turret arrangements, Queen Elizabeth-style armor, Renown-style hull implications, and a practical ceiling of six 18-inch guns. A dramatic increase in caliber would force changes across the whole ship rather than produce a simple replacement for the 15-inch battery.