How could Britain be persuaded to build a third Renown instead of Courageous and Glorious?
Short answerEmphasize Renown's lasting capital-ship value and redirect Admiral-class hulls into large carriers, producing a much stronger fast fleet before the treaty era.
NotesThe counterfactual replaces Courageous and Glorious with a third Renown-class battlecruiser in the 1915 program. That ship is more likely to remain valuable enough for reconstruction, changing which capital ships Britain retains during treaty negotiations. Without the large light cruisers available for conversion, the panel would preserve several Admiral-class hulls and complete four as armored-deck carriers with deck-edge lifts. Entering the Washington system with four roughly 45,000-ton carriers and five fast 15-inch battlecruisers would profoundly reshape both British force structure and the treaty baseline.