What if Britain maintained low-rate 16-inch-gun production for coastal defenses between the wars?
Short answerA mature 16-inch weapon could have been ready for the King George V class, probably leading to nine 16-inch guns after treaty limits collapsed.
NotesThe answer imagines low-rate production advancing the design through several marks before the King George V class was finalized. Once the treaty's 14-inch framework failed, a tested 16-inch weapon would make continued reliance on the smaller caliber much harder to defend. The likely result is a nine-gun 16-inch battleship built around an already active industrial and technical base.