How far off the ground does a ship need to float before it becomes an air ship? I feel like technically it counts at a meter.
If it's touching neither water nor ground and isn't being held up by supports it counts. Half an inch of full air suspension makes it an air ship.
Okay, now, my feeling also is that if a ship is magically airborne, assuming that's the case here, there's no reason the same principle can't be applied to all sides of the ship to make it completely frictionless and eliminate the need for aerodynamics. We could apply the same principle inside this field to make it inertia-less.
What I'm suggesting here is that it would be much cooler than an airship to have a full sized castle blasting along at 80 mph over any surface it encounters, cornering like a gazelle or fully ricocheting off anything it can't go around.
Technically a maglev bullet train is an airship if you use the definition "can't touch ground nor water and is not physically supported".
Maglev bullet castle.
At first I was thinking that since you’re basically just describing a normal hovercraft, just being off the ground and water isn’t enough to make something an airship. You’d need something more, like all of the air being navigable instead of just the layer closest to the surface, wouldn’t you?
But then I realized, regular ships *also* can only navigate the bit of the water closest to the surface. What most people think of as an airship? That can ascend to significant altitude, like an airplane? Those aren’t airships. They’re airsubmarines.





