Does it use a rudder to steer? I didn't see any. If not, there is a tremendous amount of leverage force against that train car that ties it to the tracks.
Presumably this would also travel to cities. Does it clear obstacles like buildings and overpasses with enough distance that the wind from the props doesn't damage other property?
I don't see what this craft gives you that a train doesn't already provide. It's wide instead of long and skinny, but that's about it.
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