If Britain stayed out of the First World War and Germany won, how would captured experience affect British warship design?
Short answerThe scenario changes the entire diplomatic and treaty framework; Britain would keep developing ships and infrastructure, then rearm again if Germany renewed its naval challenge.
NotesIn this proposed path to neutrality, Britain would continue building warships and improving yards while enforcing neutrality around its waters. Its scheduled 1916 infrastructure upgrade could proceed, with a further 1922 upgrade also possible. German victory would require a very different path, probably including an earlier end to the German naval challenge and no invasion of Belgium. Without British entry, American entry and the Washington settlement become doubtful, so familiar treaty-era design choices no longer follow. Any renewed German fleet expansion would still trigger another British response because geography, not captured technical experience alone, drives the rivalry.