Gps navigation, Approach operations – Garmin G1000 Piper PA32 User Manual
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GPS NAVIGATION
190-00692-00 Rev. B
5-136
Garmin G1000 Pilot’s Guide for Piper PA32
APPROACH OPERATIONS
NOTE: If certain GPS parameters (WAAS, RAIM, etc.) are not available, some published approach procedures for
the desired airport may not be displayed in the list of available approaches.
The G1000 provides guidance for non-precision and precision approaches to airports with published
instrument approach procedures. The Procedures Page is displayed by pressing the PROC Key. The Procedures
Page provides direct access to approaches — based upon the active flight plan or direct-to destination.
Whenever an approach is selected, the choice to either “load” or “activate is given. “Loading” adds the
approach to the end of the flight plan without immediately using it for navigation guidance. This allows
the pilot to continue navigating via the intermediate waypoints in the original flight plan, but keeps the
procedure available on the Active Flight Plan Page for quick activation when needed. “Activating” also adds
the procedure to the end of the flight plan but immediately begins to provide guidance to the first waypoint
in the approach.
Not all approaches in the database are approved for GPS use. When selecting an approach, a “GPS”
designation 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 can be used for supplemental
navigation guidance only. If the GPS receiver cannot be used for primary guidance, the appropriate
navigation receiver must be used for the selected approach (e.g., VOR or ILS). The final course segment of
ILS approaches, for example, must be flown by tuning the NAV receiver to the proper frequency and selecting
that Nav receiver on the CDI.
The G1000 WAAS GPS allows for flying LNAV, LNAV/VNAV, and LPV approaches according to the published
chart. LNAV+V is a standard LNAV approach with advisory vertical guidance provided to assist the pilot in
maintaining a constant vertical glidepath similar to an ILS glideslope on approach. This guidance will be
displayed on the G1000 PFD in the same location as the ILS glideslope using a magenta diamond. In all cases
where LNAV+V is indicated by the system during an approach, LNAV minima shall be used. The active
approach type will be annunciated on the HSI as shown in the following table:
HSI
ANNUNCIATION
DESCRIPTION
LNAV
GPS approach using published
LNAV minima.
LNAV+V
GPS approach using published
LNAV minima. Advisory vertical
guidance is provided.
L/VNAV
GPS approach using published
LNAV/VNAV minima.
LPV
GPS approach using published
LPV minima.