"Henry Kisor" wrote in message
...
Any pilot who's also into ground geocaching? I'm thinking about buying a
new
GPS receiver to use for that purpose, but also wonder if these hikers'
GPSes
can also be used for aviation, perhaps as a backup navigation instrument.
(I
use an older Trimble for flying.)

I use a mid-level Garmin. Haven't used it myself for air navigation yet,
but I've had my wife take it along and do things like turn it on to see if
it disrupts anything (nope) and see how well it works.

The short answer is, it works great except the altitude data can be pretty
erratic. Other models may have better alt determination, but I sure
wouldn't trust the altitude data on them.

Beyond that, it's great. We carry it and a digital camera everywhere we fly
now.

-c