In the earlier-rearmament scenario, would North Carolina have 14-inch or 16-inch guns?
Short answerThe ships would be designed with 16-inch guns from the start and would arrive earlier.
NotesThe North Carolina design initially used quadruple 14-inch mountings. In the counterfactual without the same treaty restraint, the design would start with 16-inch guns. Earlier rearmament would also bring the ships forward in the construction programme.