Did the Royal Navy consider giving Vanguard four triple 15-inch turrets?
Short answerNo, because Vanguard was conceived as a rapid construction using existing twin turrets.
NotesVanguard reused twin 15-inch turrets removed from Courageous and Glorious and held in storage. They could be reconditioned, fitted with usable barrels, and installed on a new hull. Four triple turrets would require fresh design and manufacture, removing the time advantage that justified the ship. Vanguard's value lay in combining available major components with a modern hull as quickly as possible.