L-3 TECHNOLOGIES ESI-500 - Figure 3-21: Phase of Flight Definitions; Synthetic Vision Terrain Alerting Function

ESI-500
Pilot’s Guide3-24
Display Features
Synthetic Vision Terrain Alerting Function
The Synthetic Vision Terrain Alerting function looks ahead of the
aircraft projected vertical and horizontal ight path, including turns, to
determine if any terrain or obstacles might pose a threat. (Hereafter
the word “terrain” refers to “terrain or obstacles” unless indicated
otherwise.) The ESI-500 Synthetic Vision Terrain Alerting function
determines the terrain threat based on the phase of ight (Figure 3-21)
and on the predicted terrain clearance compared to the required terrain
clearance (Tables 3-1 & 3-2). Alerts are disabled within the area 1.2
nmi around the runway and 500 ft above the runway threshold when
you are landing to prevent nuisance alerts.
Figure 3-21: Phase of Flight Definitions
15 nmi
Terminal Phase
3,500 ft
1,900 ft
1,500 ft
or
Not to Scale
Approach
Phase
Nearest
Runway
Elevation
Enroute Phase
Departure
Phase
5 nmi5 nmi