Magnetic Flying Machine

[Pirate88179]

Magnets are used in that design just to transfer the energy of air jets to the top plate to create a vertical lift.  The air jets should
be powerful enough to take the weight of entire system including magnets creating a substantial lift upwards.

A howercraft can create a lift or air cushion of less than one inch by high pressure air trying to escape between ground and bottom of the
craft. If you keep hovercraft at higher elevation, the air coming out of the craft cannot create any lift at all unless you provide a rocket
engine creating rocket propulsion.

Earth's magnetic field is very weak hence it cannot create any lift of the other repelling magnet.  If you use a very strong repelling magnet,
it may cause reversal of earth's magnetic field in that local area, resulting in attraction.

Well, I have seen small hovercraft, actually known as ground effect vehicles, hover over 2 ft off the ground using a small lawnmower engine.  That little gap you are talking about is the air gap and is usually a few inches but it is not how high the craft is actually hovering off of the ground.  That is simply the distance from the bottom of the skirt to the ground.

Bill