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2 - NAV PAGES
47
190-00356-00 Rev B
Terrain Alerts
Forward Looking Terrain Avoidance
The unit will issue terrain alerts not only when the
aircraft altitude is below the terrain elevation but also
when the aircraft is projected to come within minimum
clearance values of the terrain. This alerting, called
Forward Looking Terrain Avoidance (FLTA), is also
provided for obstacles. Any potential impact points will
be depicted on the display.
FLTA Severity Levels
“TERRAIN AHEAD” alert (flashing)—Similarly, an
“OBSTACLE AHEAD’’ alert is also provided.
“TERRAIN ADVISORY” advisory—Similarly, an
“OBSTACLE ADVISORY” alert is also provided.
Phase of Flight
Level Flight
Descending
En Route
700 ft.
500 ft.
Termnal
350 ft.
300 ft.
Approach
150 ft.
100 ft.
Departure
100 ft.
100 ft.
Minimum Terrain Clearance Values
NOTE
: During the final approach phase of flight,
FLTA alerts are automatically inhibited when the
aircraft is below 200 feet AGL while within 0.5
NM of the approach runway or is below 125 feet
AGL while within 1.0 NM of the runway.
Содержание GNC 420AW
Страница 1: ...Pilot s Guide Reference 400W Series ...
Страница 10: ...INTRODUCTION viii 190 00356 00 Rev B Blank Page ...
Страница 70: ...2 NAV PAGES 60 190 00356 00 Rev B Blank Page ...
Страница 90: ...4 FLIGHT PLANS 80 190 00356 00 Rev B Active Flight Plan Shortcuts Blank Page ...
Страница 154: ...7 NRST PAGES 144 190 00356 00 Rev B Nearest Airspaces Blank Page ...
Страница 186: ...10 FDE 176 190 00356 00 Rev B Blank Page ...
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