scott moore wrote:

Sam Spade wrote:

scott moore wrote:

Al G wrote:

Thanks to the certification and AML STC approval, owners of Garmin's
popular GNS 400/500 series panel-mount avionics will be able to
upgrade their products to meet the FAA's WAAS standards* without a
field approval**. These upgrades include 5 Hz position updates,
faster map redraws, fully coupled and guided procedure turns and
holding patterns, and increased XM weather content. Pilots will also
experience significantly enhanced functionality because of the WAAS
LPV, LNAV/VNAV, LNAV+V, and LNAV approach capabilities.



Coupled procedure turns and holds? Why is WAAS an enabling factor for
that?


I don't read where he said WAAS is the enabling factor for
track-guided procedure turns or holding patterns.


It wasn't able to do it without WAAS, now it is.

And, after the upgrade it will be able to do holding patterns the
Garmin-improved way, even with WAAS is not available.