Marc Ramsey wrote:
Jack wrote:
That works very well for me, too. Get the GPSMAP 76-S, with the
barometric sensor and compass. A few bucks more but better altitude
readings.

Careful, the pressure sensor equipped Garmins don't necessarily provide
"better" or "more accurate" altitude, at best, they provide "smoother"
altitude readings. Plus, if you get the calibration mode wrong, they
can give very poor results...

And how would we know which of the readings in the cockpit was more
accurate? We know better than to believe the altimeter on the panel when
it comes to consistent accuracy. I'll take GPS, properly calibrated to
barometric, if only because that's what goes in the file.

For OLC, why spend more?


Jack