The Danish Iver Huitfeldt design carried two OTO 76 guns, while the British derivative selected one 57 mm and two single 40 mm weapons. Type 31 is intended to add inner-layer protection for carriers and auxiliaries against weapons that penetrate the task group's outer defenses. The counterfactual replaces that battery with three Super Rapid guns in A, B, and X positions. Such a broadside could nominally deliver 360 rounds per minute and combine guided anti-air and extended-range ammunition with the ship's missiles, trading a mixed-caliber battery for commonality and unusually dense defensive fire.
Notable Point · 53:47-59:09
What if Type 31 carried three OTO 76 mounts?
A Type 31 counterfactual compares its chosen 57 mm and 40 mm battery with three common 76 mm mounts using DART and Vulcano ammunition.