Approach Basics (GX50/60)
The Apollo GX50/60 may be used to navigate GPS
non-precision approaches. These consist of overlay
approaches, GPS approaches which overlay an
existing non-precision approach procedure such as a
VOR, an RNAV, or an NDB approach, and GPS-only
approaches. GPS approaches may overlay any type of
non-precision
approach
procedure
except
for
localizer, LDA, and SDF approaches.
GPS approaches may be either Phase II or Phase III
overlay, or named GPS-only approaches. The major
difference in the overlay approaches is that for a Phase
II approach, the underlying approach NavAid(s) must
be operating and the aircraft must be equipped for the
underlying approach. It is not necessary to monitor
the underlying NavAid(s). A Phase III GPS approach
may be conducted even if the underlying NavAid(s)
are not operating.
Introduction
There are three general areas of operation (see the
diagram
on
page
En
Route,
Approach
Transition, and Approach Active.
En Route
En route operations describe what you do to set up
your approach information before you are within 30
nm of destination airport and prior to enabling your
approach. Load your approach to the active flight
plan. You can load the approach in the Flight Plan
function, or as a short cut, press
SEL
in the Nav
function or while viewing the moving map. At 30 nm
your Apollo GX will ask if you want to enable
approach, press the
ENTER
button. Then, enter the
local altimeter setting. If you are less than 30 nm from
your destination when you load an approach, you will
be prompted immediately to enable it.
9-1
Approach Basics (GX50/60)
Summary of Contents for Apollo GX50
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