Were interwar US carriers designed only for the Pacific and too vulnerable for an Atlantic war?
Short answerThey could operate in the Atlantic, but weather would require different aircraft parking and storage arrangements and a different air group.
NotesInterwar US carriers could operate in the Atlantic, but their air groups would differ from those used in the Pacific. Aircraft parking and storage arrangements that worked in one theater would be harder to use unchanged in the other. Pacific typhoons provide the comparison with prolonged North Atlantic and North Sea wind and storms. That comparison concerns the aircraft and their storage as well as the ship's ability to survive the sea.