What was the Royal Navy's biggest wartime ship-design failure?
Short answerThe Courageous class and Furious are the choices. HMS Captain is excluded from the wartime comparison because she was built in peacetime.
NotesThe Courageous class and Furious are chosen as the Royal Navy's biggest wartime design failures. HMS Captain is also mentioned as a poor design. She falls outside this particular comparison because she was built in peacetime as an experiment.