but the metric the OP was using was power density. nuke fuels are MUCH more energy dense than hydrocarbon fuels. but putting a reactor on each plane would probably have negative externalities.
but mixing your comment with a few others, maybe a nuke plant on the ground that cracks the co2 in the atmosphere to make carbon neutral hydrocarbon fuel.
but mixing your comment with a few others, maybe a nuke plant on the ground that cracks the co2 in the atmosphere to make carbon neutral hydrocarbon fuel.