On Jan 9, 12:45*pm, wrote:
Mark wrote:
The GPS unit I have recently received was a gift, and I hadn't
familiarized my self with it as such, but did notice it seemed
geared more toward nautical data. Makes sense cause the
giver knows I also spend time on the water. I simply wanted
some intelligent feedback as to the parameters for
consideration for multiple applications of -any- GPS.

FYI most GPS units designed for land/sea use don't work very well
if at all at airplane speeds, i.e. not very much faster than a
car can go.

That was true for some Garmin models in the mid-90's that had an
artificial speed restriction (100 knots AIRC). But it hasn't been the
case with any of my hiking/automotive/boating GPS units since then.
They work fine at airliner speeds at giving accurate position and
altitude (although the latter is not to be used for maintaining flight
levels). Aviation-specific models clearly have advantages, but the
models designed for land/water use can also be quite useful.