Naval Historywith Dr. Alex

Q&A · 2:42:02-2:42:17

Should Britain have modernized the 15-inch gun?

A longer, lighter 15-inch weapon could have equipped new battleships while creating a common modernization path for older Royal Navy capital ships.

15-inch GunsBattleship ModernisationKing George V Class Battleships (1939)Naval GunsRoyal Navy
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Question

Was it an error for the Royal Navy not to develop a longer, lighter 15-inch gun?

Short answer

Yes; it would have supported new battleships and upgrades to ships already using the 15-inch caliber.

Notes

The missed gun-development path matters beyond one class. A longer, lighter 15-inch weapon could give new construction competitive performance without moving to a wholly separate caliber. Nine such guns would offer the King George V design a proven triple-turret path based on Nelson and Rodney. The same development could support compatible upgrades across the existing Queen Elizabeth, Revenge, and battlecruiser fleet.