Basic Operations; Gps Flight Phase Annunciations - Garmin GPS 175 Pilot's Manual

Navigation

3.16 Basic Operations

The GPS/GNX guides each leg of the approach, sequencing through each leg, up to
the Missed Approach Point (MAP). You can fly published approaches with the full
transition using any published feeder route or initial approach fix (IAF), or with a
Vectors-to-Final transition. For ILS, VOR, and NDB approaches (and non-precision
localizer-based approaches), the moving map shows the surrounding conditions.
Phase-of-flight annunciations displays the current mode of flight on the bottom of
the screen.
For non-GPS approaches, use the appropriate radio navigational aid for
•
primary approach course guidance.
• Many non-precision approaches have GPS overlays, improving accuracy so
approaches do not require overflying a VOR or NDB.
Baro-corrected altitude is not required by the GPS/GNX to meet the requirements of
TSO-C146e. An optional baro-corrected altitude source is recommended for
automatic sequencing of altitude leg types.
Procedures are arranged around the existing flight plan in the following order:
Departure, En Route, Arrival, and Approach. Always verify that the transition
waypoints between each phase are correct.
Departure waypoints insert before the En Route waypoints in the flight plan
•
Arrival waypoints insert between the En Route waypoints and the approach
•
waypoints
3.16.1

GPS Flight Phase Annunciations

Phase of flight annunciations are a direct indication of the current CDI behavior for
the selected navigation source. Not all annunciations are available for every
navigator.
ANNUNCIATION
0.30 NM
1.00 NM
3-52
0.3 nm CDI scale
1.0 nm CDI scale
GPS 175/GNX 375 Pilot's Guide
Phase of flight annunciations appear in
the annunciation bar.
Under normal conditions, these
annunciations are green. They turn
yellow when cautionary conditions exist.
FLIGHT PHASE
190-02207-02 Rev. 1