Garmin GNS 430AW, Pilot'S Manual & Reference

Page: 92 / 214

5 - PROCEDURES
82
Activating Approaches
Not all approaches in the database
are approved for GPS use. As you
select an approach, a “
G
P
S
” designa-
tion to the right of the procedure
name indicates the procedure can be flown using
the GPS receiver. Some procedures will not have
this designation, meaning the GPS receiver may be
used for supplemental navigation guidance only. ILS
approaches, for example, must be flown by tuning the
VLOC receiver to the proper frequency and coupling
the VLOC receiver to the external CDI (or HSI).
Once an approach is selected, it may be activated
for navigation from the procedures page . Activating the
approach overrides the “en route” portion of the active
flight plan, proceeding directly to the “approach”
portion (for a full approach, directly to the initial
approach fix). Activating the approach also initiates
automatic CDI scaling transition as the approach
progresses.
To activate an approach:
1. Press the PROC key to display the procedures
page.
2. Turn the
large right
knob to highlight “Acti-
vate Approach?” and press
ENT
.
Another procedures page option allows you to
activate the final course segment of the approach. This
option assumes you will receive vectors to the final
approach course and guides you to intercept the final
course, before reaching the FAF.
To activate the approach, with vectors to final:
1. Press the PROC key to display the procedures
page.
2. Turn the
large right
knob to highlight “Acti-
vate Vector-To-Final?” and press
ENT
.
In many cases, it may be easiest to “Load” the full
approach while still some distance away, en route to
the destination airport. Later, if vectored to final, use
the steps above to select “Activate Vectors-To-Final”—
which makes the inbound course to the FAF waypoint
active. Otherwise, activate the full approach using the
”Activate Approach?” option.
If you reactivate the approach currently being
flown using the PROC key, prior to reaching the MAP
a Restart Approach confirmation window appears on
the screen. If you have passed the MAP, the 400W-
series unit proceeds to the transition waypoint without
a restart confirmation.