By the way, I fully understand the unreliability of and suicidal nature of extra-long-range PR stunts like the Doolittle raid. Certainly we wouldn’t have been eager to risk something as expensive and important as a nuke on such a run. But don’t pretend like Hiroshima and Nagasaki were like the massive campaigns against Munich, Berlin, Dresden, Tokyo, etc. We’re talking about a single bomb, here.
Two bombs, actually.
Neither of which, to the best of my knowledge, could be carried by any carrier-based aircraft ever built.