Why was Rodney more worn out than Nelson by the end of the Second World War?
Short answerNelson's repair periods shifted more work to Rodney, and Rodney's intense Bismarck action added substantial self-inflicted blast and machinery strain.
NotesNelson's mine and torpedo damage kept her out of service for periods when the fleet still needed a 16-inch battleship. Rodney consequently accumulated more demanding employment as the available sister. Her battle with Bismarck added unusual blast, machinery, and structural wear on top of that workload. Nelson was moving toward the Bismarck action but did not fire the hundreds of heavy shells that damaged Rodney's own fittings and plating. Unequal availability can make near-identical ships reach the end of a war in very different condition.