Garmin GNC 420AW GPS Receiver User Manual


 
5 - PROCEDURES
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190-00356-00 Rev E
DME Arc Approach
15. As you approach the MAP, a waypoint alert
(“ARRIVING WPT”) will appear in the lower right
corner. CDI scaling continues to tighten from
0.3 NM to 350 feet, full-scale deflection.
16. As you cross the MAP, “SUSP” will appear
above the OBS key, indicating that automatic
sequencing of approach waypoints will be sus-
pended at the MAP. A “from” indication will
be displayed on the CDI and default NAV page,
but course guidance along the final approach
course will continue. If a missed approach is
required, use the OBS key to initiate the missed
approach sequence.
Flying a DME Arc Approach
TheGPSoverlayforaDMEarcapproachuses
additional Jeppesen-provided waypoints to define the
arc.Thesewaypointsareindicatedby“D”astherst
letter in the waypoint name. This is followed by three
numbers which indicate the radial the waypoint lies
on. The last letter indicates the radius of the arc.
DO NOT USE
FOR NAVIGATION
Billard Muni (Topeka, KS)
VOR or GPS Rwy 22

NOTE: The letter/number DME arc names are
being replaced with standard five-letter intersec-
tion names. You may encounter either naming
convention for an approach you select.
This example is based upon a flight from Hutchin-
son (Kansas) Municipal (KHUT) to Billard Municipal
(KTOP)inTopeka,Kansas.TheVOR/DMErunway22
approachwillbeselected,alongwith“D258G”asthe
IAF.
1. Select Billard Muni (KTOP) as your destination,
via the Direct-To key or as the last waypoint
in a flight plan.