Mooney M20M, Pilot Operating Handbook

Page: 302 / 377

GI 275 Part 23 AML STC
190-02446-12 Rev. 4
Airplane Flight Manual Supplement Page 62 of 70
Traffic can be displayed on the moving map as an overlay. Additional filtering
based on traffic type (all, advisories, alerts) can be selected using the Menu
Traffic selection. For TIS-A traffic selection of the advisories and alerts will
result in display of alerted targets only.
Traffic page units are always in nautical miles and feet. If systems units for
altitude are selected to meters, then an annunciation is provided on the traffic
page indicating that traffic altitudes are depicted in feet and the traffic overlay
icon for the map includes a “FT” indication.
If a traffic alert occurs and the MFD is not selected to the dedicated traffic page,
then a traffic “popup window” is provided which depicts the traffic and provides
controls to either go to the dedicated traffic page or close the popup window. All
other pages on an ADI, HSI or MFD will display a yellow TFC annunciator in
the upper right corner of the screen when alerts are present.
Terrain Awareness and Alerting
The following terrain awareness and alerting functions may be provided by the
GI 275 system: Terrain Proximity, Terrain FLTA, or TAWS-B. If the GI 275
system is interfaced to a GNS or GTN navigator equipped with TAWS-B, then
the GI 275 will display TAWS-B parameters provided by the GNS or GTN. The
Terrain or TAWS function provided by the GI 275 system is indicated by a text
box on the bottom of the Terrain Page.
Terrain Proximity function is a 2D depiction of terrain, obstacle, and powerlines
with no alerting. A dedicated terrain page is provided on the MFD on which the
relative height of terrain, obstacles, and powerlines are depicted using color to
convey the height of the obstruction relative to aircraft altitude based on
database data. Obstacle and wires are displayed on the terrain page at certain
zoom scales. Obstacle data is displayed at zoom settings of 10nm or less and
wire data is displayed at zoom settings of 5nm or less. The Terrain Proximity
function is present on the system regardless of other higher level terrain
functions that may be selected.
If SVT is enabled in the GI 275 system, then the Terrain - FLTA function is
provided. Forward Looking Terrain Alerts and Reduced Terrain Clearance
Alerts are provided for terrain, obstacles, and wires.
If the GI 275 is interfaced to a GNS or GTN with TAWS-B enabled, then
TAWS alerts are only displayed from the GPS/TAWS navigator interfaced as
GPS 1 and are displayed regardless of the CDI 1-2 setting.
Visual indications are provided for terrain, obstacle, and wire alerts as follows:

For all GI 275 configurations which provide alerts and all
configurations where the GI 275 is interfaced to GNS or GTN with
TAWS-B enabled: