Garmin GNS 530 - Manual (Page 276)

GNS 530(A) Pilot’s Guide and Reference 190-00181-00 Rev. H
APPENDIX C
MAP DATUMS
C-2
What happens when I select an approach?
Can I store a flight plan with an approach,
departure, or arrival?
When loading an approach, departure, or arrival into
the active flight plan, a set of approach, departure, or
arrival waypoints is inserted into the flight plan—along
with a header line describing the selected instrument
procedure (Figure C-2). The original enroute portion of
the flight plan remains active, unless the pilot ‘activates’
the instrument procedure; which may be done when the
procedure is loaded or at a later time.
Figure C-2 Active Flight Plan Page
Flight plans can also be stored with an approach,
departure, or arrival. Keep in mind that the active flight
plan is erased when the unit is turned off and overwritten
when another flight plan is activated. When storing flight
plans with an approach, departure, or arrival, the GNS 530
uses the waypoint information from the current database to
define the waypoints. If the database is changed or updated,
the GNS 530 automatically updates the information if
the procedure has not been modified. If an approach,
departure or arrival procedure is no longer available, the
flight plan becomes locked until the procedure is deleted
from the flight plan or the correct database is installed. For
information on loading an approach, departure, or arrival,
see Section 6.1. See Section 5.1 for instructions on saving
and copying flight plans.
Can I file slant Golf (‘/G’) using my GPS?
Yes, the pilot may file a flight plan as /G if the GNS
530 is a certified A1 or A2 installation. If flying enroute,
the pilot may file /G with an expired database only after
having verified all route waypoints. Non-precision
approaches may not be flown with an expired database.
See an approved Airplane Flight Manual Supplement for
more information.
What does the OBS key do and when do I use
it?
The OBS Key is used to select manual (OBS mode)
or automatic sequencing of waypoints. Activating OBS
mode (as indicated by an OBS annunciation directly
above the OBS Key) holds the current ‘active to’ waypoint
as the navigation reference and prevents the GPS from
sequencing to the next waypoint. When OBS mode is
cancelled, automatic waypoint sequencing is selected, and
the GNS 530 automatically selects the next waypoint in
the flight plan once the aircraft has crossed the present
active-to waypoint.