What would the size ratio be for motor to craft size? Would a small motor be ale to propel a craft several times it's size or would it need to be at least 80%-90% of the crafts total volume/mass?
How big would the aluminum disks for the motor have to be to function properly? Where would you begin to look for an aluminum disk of that size if it's bigger than a few feet in diameter?
What kind of bearing would the rotating disks need to have in order to not burn out quickly and send it into the dirt? Would these bearings need special maintenance?
What about gyroscopic controls? How would it be fixed to the machine to affect it's movement?
How would one go about designing/creating the frame of the craft and the outer plating?
How would the interior setup of the craft look?
Are there any essential/non-essential things that need to be considered in the construction of such a craft?
How much would the materials and tools cost to build one?
How long would it take to build one? (at least before you get haunted by spooky ghosts that want to ask you some questions)
Would such a craft be able to go under water or into space? What would be needed for it to have those abilities?