ORIGINAL: eddieC
For the moment let’s get back to the basics. Do you agree that according to the FAA I can fly within feet of the surface if I so desire as long as I maintain 500 foot separation from any person, vehicle or structure?
True, as long as you're not creating a hazard. (... and it's in 'non-navigable airspace'.

)
Non-navigable airspace is simply that which is not navigable airspace, simple english. I gave you the US code that defines navigable airspace. It is not used for aircraft control, but is used for towers and other structures because you have little or no restrictions when erecting in non navigable airspace.
Your attempts at rationalizing a made-up term are laughable. Trying to come off as an expert isn't your strong suit, guy.
No, flying a model airplane at any altitude is trespassing. Only certified aircraft can fly over other people's property
I almost shot coffee out my nose on that one! SP, you should change your sig to Mr. Mxyzptlk from Bizzarro World. (Anyone remember Superman comics?) You get everything warped or backwards.
Non-navigable airspace is a term used to define that airspace that the FAA has deemed not necessary for controlled navigation ie: IFR or instrument approaches, by aircraft. It is used to determine if you are required to get prior approval from the FAA to build a structure. If you want to build a 2000' tower and it extends beyoud the non-navigable airspace you would be required to obtain permission from the FAA as it has the potential to interfere with flights under FAA control.
As far as only certified aircraft being able to fly over houses, that is simply untrue. True ultralights are not certified and are legally able to fly over persons, vessels, vehicles and structures, as long as they maintain proper separation and are not over densely populated areas.