What happens if the Royal Navy chooses one of the fast H3 designs?
Short answerH3A offers six 18-inch guns and 33.5 knots, but G3 sacrifices only half a knot to gain three guns and a stronger rate of fire.
NotesH3A places six 18-inch guns forward in two triple turrets, resembling a much larger Dunkerque arrangement. Its quoted performance is 33.5 knots from 180,000 shaft horsepower. In the counterfactual, Scharnhorst could not remain in its historical form because it could not escape H3A. G3 carries three more guns, described here as 16.5-inch weapons, with a higher rate of fire. Its quoted speed is 33 knots, making the exchange a half-knot reduction for substantially more firepower.