Garmin GI 275, Pilot'S Manual

Page: 209 / 250

Garmin GI 275 Pilot's Guide 190-02246-01 Rev. A
187
Additional Features
System Overview
Flight Instruments
EIS
Navigation
Hazar
d A
voidance
Autopilot
Additional F
eatur
es
Appendices
Index
Activating and deactivating SVT:
1)
From the 'ADI' Page, open the menu and select ADI Options > Terrain SVT .
2) Select the Synthetic Terrain Button to toggle SVT depiction.
SVT FEATURES
Flight Path Marker
The Flight Path Marker (FPM), also known as a Velocity Vector, is displayed at groundspeeds
above 30 knots. The FPM depicts the approximate projected path of the aircraft accounting for
wind speed and direction relative to the three-dimensional terrain display.
The FPM is always available when the Synthetic Terrain feature is in operation. The FPM
represents the direction of the flight path as it relates to the terrain and obstacles on the display,
while the aircraft symbol represents the aircraft heading.
The FPM may also be used to identify a possible conflict with the aircraft flight path and
distant terrain or obstacles. Displayed terrain or obstacles in the aircraft’s flight path extending
above the FPM could indicate a potential conflict, even before an alert is issued by TAWS/
Terrain-FLTA. However, decisions regarding terrain and/or obstacle avoidance should not be
made using only the FPM.
Zero-Pitch Line
The Zero-Pitch Line is drawn completely across the ADI and represents the horizon when
the terrain horizon is difficult to distinguish from other terrain being displayed. It may not
align with the terrain horizon, particularly when the terrain is mountainous or when the
aircraft is flown at high altitudes.
Horizon Headings
The Horizon Heading is synchronized with the HSI and shows compass heading labeled
in 30 degree increments on the Zero-Pitch Line with tick marks every 10 degrees. Horizon
Heading tick marks and digits appearing on the zero-pitch line are not visible behind the
symbolic aircraft, airspeed, or altitude display. Horizon Heading is used for general heading
awareness.
Activating and deactivating Horizon Headings:
1)
From the 'ADI' Page, open the menu and select ADI Options > Terrain SVT >
Settings.
2) Select the Horizon Headings Button to toggle horizon heading depiction.