How much mass can you levitate with air? Take air hockey table for example, pressurised air is pushed through holes and they levitate a disk but how much mass is possible?
I think it would probably depend on three things; the mass of the disk, the surface area of the disk and the air pressure. (Possibly on the size and number of holes on the table as well)
This is a "how long is a piece of string" question - there isn't really any limit.
Four of these devices can levitate 240 tons. Use more than four, and you can levitate "thousands of tons" according to the manufacturer's website.
The table can be modeled as a porous medium (using Darcy's law) with a constant air pressure reservoir beneath it. The flow interaction between the puck and the table can be modeled as a aerodynamic lubrication flow, involving the same viscous flow equations as for hydrodynamic lubrication, but with a compressible fluid.
