The political case for 14-inch guns contrasts with the logistical appeal of a common 15-inch/45 weapon. The same calibre could have armed the King George V class and supported modernization of the Queen Elizabeths, R class, Hood, Renown, and Repulse. Common ammunition and related gun systems would simplify support across a large capital-ship force. The unrealized 15-inch option appears more coherent strategically and logistically, even though treaty signalling pushed procurement in another direction.
Notable Point · 55:44-56:16
The logistical case for a common British 15-inch/45 gun
A shared 15-inch/45 weapon could have armed the King George V class while supporting common upgrades across Britain's older capital ships.