Jay Honeck wrote:

I'll agree that there are parts of the country that darned-near require
an IR. I'm happy to report that (a) I don't live in one, and (b) I
don't fly there very often, either.

So the fact is that you *can't* reliably see America from the air with just a
PPC. Just part of it.

George Patterson
Give a person a fish and you feed him for a day; teach a person to
use the Internet and he won't bother you for weeks.