SO, is there a difference in the eyes of the FAA? And if so, what part of
FAR
would govern such a machine? I realize this is a very unusual question,
thanks
for your help.

Harry

If it doesnt fly why should the FAA give a hoot?

The FAA doesnt regulate hovercraft or airboats and those use airprops for
forward propulsion...


Of course I dont know diddly about FAA regs either...

I hope you have some smoothhhh, softffff ground and that you are going pretty
darn slow when you do your flight tests at 3 ft AGL....

take care

Blll