Taws-A; Taws-A Setup Selections - Garmin GTN 650Xi Series Pilot's Manual

Hazard Awareness

TAWS-A

FEATURE REQUIREMENTS
•
Valid terrain/obstacle/navigation database
•
Valid 3D GPS position
•
Valid flap and landing gear status inputs
•
Valid radar altimeter
•
Valid air data computer
Class A TAWS incorporates radar altimeter input with the GSL altitude to provide a
more accurate position reference when at lower altitudes for certain alert types, and
to retain a level of ground proximity warning capability in the unlikely event of a
navigation, terrain or obstacle database failure.
TAWS-A Features
•
Optional TSO-C151d Class A terrain alerting system
•
All Terrain-FLTA functions plus: premature descent, excessive descent and
closure rate, negative climb rate, flight into terrain, excessive below
glideslope/glidepath deviation
•
Visual and aural annunciations when terrain and obstacles are within the given
altitude threshold from the aircraft

TAWS-A Setup Selections

Tap Menu to access setup options. Selections are grouped by function: View, Layers,
and TAWS.
INHIBIT
AUTOMATIC
INHIBIT
5-124
Manually inhibits FLTA or PDA visual alerts for low altitude
approaches.
Automatically inhibits FLTA alerts when the aircraft meets the
following approach criteria.
•
Altitude <200 ft above runway elevation
•
Position <0.5 nm off approach end or between each
runway end
Pilot's Guide 190-02327-03 Rev. C