What if the Royal Navy had required at least four twin gun turrets on every ship from destroyer size upward?
Short answerBritish destroyers and cruisers would grow dramatically, magnifying an industrial advantage that Germany could not easily match in numbers.
NotesRoyal Navy destroyers would become far larger and more heavily armed under this rule. Applying it to C-, D-, and E-class cruisers could create extreme batteries, potentially with many twin 6-inch turrets. Britain might still maintain destroyer numbers because its shipbuilding base could carry the burden, while Germany already used smaller torpedo boats and curtailed cruiser construction to stretch crews and yards. A later standard British destroyer could resemble a blend of the Tribal and Daring classes, making a separate large-destroyer tier larger again. The rule would change treaty pressures, the balance at Jutland, and the industrial competition behind fleet numbers.