If one were to build a nuclear powered airplane, a jet would be quite a bad choice. Propellers would be a much better propulsion system. Honestly, though, a hy

If one were to build a nuclear powered airplane, a jet would be quite a bad choice. Propellers would be a much better propulsion system. Honestly, though, a hydrogen powered plane is a more likely and more physically reasonable system. Hydrogen has a very high specific energy, and energy density isn't nearly as important as weight in a plane.