Chris W wrote:

It tells me that there is an airport 5 knots to my left and
10 knots to my right. What it didn't tell me is the runway to the left
was at an elevation of 10,000ft and the runway to the right was at an
elevation of 5,000ft.

You sure? My old LORAN used to provide field elevations, radio frequencies, and
other data for the airports listed in the "nearest" feature. I'd be surprised to
learn aviation GPS units don't do as well.

My LORAN didn't provide the glide ratio data you want, though.

George Patterson
I prefer Heaven for climate but Hell for company.