How would nuclear propulsion change British warship design between 1922 and 1939?
Short answerIt would give capital ships exceptional range and speed while turning them into mobile fuel support for conventionally powered escorts.
NotesThe reactors would most plausibly fit cruisers, carriers, and battleships rather than small destroyers. Their effectively unlimited propulsion range would reduce capital-ship fuel constraints and improve sustained speed. The fleet would still need fuel for escorts, so nuclear carriers and battleships could devote bunker space to replenishing destroyers. Survivability would also demand heavily protected reactor placement and plans for severe battle damage.