A new fifteen-inch gun for F3 could have become the standard weapon for later British battleship refits. Hood, Renown, and the Queen Elizabeth class are proposed recipients, while a later King George V class might also have carried nine of these guns. The suggestion includes modernizing Queen Elizabeth, Valiant, and Warspite to combine the new armament with 28-knot speed. Britain would then have a stronger group of fast capital ships around which to organize its fleet. The planned gun's calibre length remains uncertain: of five books consulted, two specify no length, one gives 48 calibres, and two give 50. Fifteen-inch/50 is the working designation used for this comparison.
Notable Point · 2:53:25-2:59:30
How F3 guns could have changed British battleship refits
An F3 gun program could have shaped fleet-wide refits and a nine-gun King George V design, although the planned gun's exact calibre length is uncertain.