"Thomas Borchert" wrote in message
...
Al,

Be advised, many GPS's will not
track satellites properly while the aircraft is inverted.


More importantly for most applications: Several GPS's will not record
altitude with track.

--
Thomas Borchert (EDDH)


Really? Even my old yellow etrex does that.

More interesting to me would be a way to download a track(w/ altitude),
from Garmins 430/530. Most of the folks I fly with have one, but we couldn't
find anyway of getting the data out.

Al G