I'll file that away for the day when most of the GA fleet is WAAS-capable.
I'm sure that the AIM will have changed by that time.

Bob Gardner

"Dan Luke" wrote in message
...

"Bob Gardner" wrote:
AIM 1-1-19(a)(8) tells pilots not to use GPS altitude: "GPS altitude
should not be relied upon to determine aircraft altitude since the
vertical error can be quite large."

Except when using WAAS, when it is quite small.

--
Dan
C172RG at BFM