Hilarious!

But as we know (and has been mentioned at length in another thread), one
should not rely on a single method of navigation. I presume the GPS in this
case was supplemented by celestial (if an outdoor bar), or dead reckoning???

--Alan G.

"DARat" wrote in message
...
We tried a WAAS enabled Garmin and were able to successfully navigate to
each
of the Taps at our Sailing Clubs bar. We entered waypoints and were
successful
in navigating back to each tap. Unfortunately after several
demonstrations, our
ability to navigate back to the appropriate tap started to
diminish...However,
I'm reasonable sure it had nothing to do with the position displayed on
the
GPS. :-)

--
Cheers,
Jeffrey Nelson
Muir Caileag
C&C 30
"Jeff Morris" wrote in message
...
Try this for an experiment:

Cover up your windshield and drive entirely by trying to follow the line
on you car's GPS system. That's what you doing on a boat in the fog.

Also, consider that the streets have been well mapped in the last few
years by survey companies that drive around in cars and mark each
intersection. Many nautical charts are based on century old data. Much
of the issue is the map/chart quality, not the accuracy of the GPS
itself.

Actually, the boat gps is just as accurate, perhaps even better since
there is no shielding from high buildings. Its just that on a boat you
may be relying 100% on the GPS as the primary, and perhaps only, source
of position. In a car, you glance occasionally at the map plotter and
would never notice if the GPS sometimes said you were on someone's front
lawn.

One can easily imagine a situation on a boat where failure of the GPS
would cause you to drop anchor and wait until the weather clears; I doubt
you would do the same in a car!


BTW, my wife got a new car with a nav system just last night. It
currently in the driveway reporting two different street addresses
(depending on how you ask), both wrong. Both are actually nonexistent
addresses - one of them would be a hundred yards past the other end of a
dead end street. The actually position on the map is well reported,
however.


anchorlt wrote:
I keep reading about GPS for boats and how innacurate it can be.

Why is the same not innacurate in cars? My car GPS is so accurate it
tells me I am on the white line at a
traffic signal stop light or in my driveway.

Why not the same for boats?