Third Sea Lord Reginald Henderson tried to standardise British weapons before the Second World War, but the Royal Navy entered the conflict with overlapping gun calibres. Chatfield's push for 14-inch guns cut across Henderson's preference for 15-inch weapons, while the fleet also carried 5.25-inch, 4.7-inch, 4.5-inch, and 4-inch systems. Each calibre answered a design requirement, yet the combined inventory multiplied ammunition and support demands. Engineering optimisation at ship level could work against fleet-wide efficiency. The relevant design question is how a weapon fits the navy's industrial and logistical system.
Notable Point · 34:39-37:09
Engineering perfection versus fleet-wide standardisation
The Soviet and British calibre mixtures show how optimising individual designs can make a fleet harder to supply.