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Caution Terrain is
solid Yellow
60 Seconds from
projected impact
“Caution Terrain!”
Warning Terrain
is Solid Red
30 Seconds from
projected impact
“Terrain, Terrain,
–Pull Up!”
Honeywell MFRD shown
Honeywell MFRD shown
060-4241-000 • Rev. E - December 2003
32 MK V & MK VII EGPWS Pilot Guide
Essentially, pilots should note that any yellow or red painted
terrain is at, or above the aircraft’s altitude and appropriate
terrain clearance needs to be provided.
Based on the display system used, there may be additional
terrain display features. These are defined as installation
options and allow for:
• Automatic display of terrain on the cockpit display (“TAD
pop-up”) in the event that a caution or warning alert is
triggered as described in Terrain Look Ahead Alerting. In
some cases, an active display mode must be selected first.
• “Auto-range” when Pop-up occurs. This provides for the automatic
range presentation for terrain as defined for the
display system configuration (typically 10 nm). In this case,
if the terrain auto-range is different than the display system
selected range, the displayed range value on the cockpit display
is flashed or changes color until the range is manually
reselected or terrain display is deselected.
Peaks Display has all the characteristics of the Non-Peaks
Display but with additional terrain display features for
enhanced situational awareness independent of the aircraft’s
altitude. The principle additions are:
• The digital display of the highest and lowest terrain/obstacle
elevations currently displayed,
• The display of additional solid or lower density color bands,
including the addition of the graphic representation of sea
level (0 feet MSL).
With Terrain Display selected on, digital values representing the
highest terrain/obstacle elevation and the elevation for the
bottom of the lowest color band are displayed. These are based
on the range selected (terrain in view).
The location of the digital values can vary somewhat for the
display used, but for this guide will be shown in the lower right
corner of the display. These elevations are expressed in
hundreds of feet above sea level (e.g., 125 is 12,500 feet MSL)
with the highest elevation on top and the lowest on the bottom.
However, in the event that there is no appreciable difference in
the terrain/obstacle elevations (flat terrain), only the highest
value is displayed. Additionally, the color of the elevation value
PEAKS
DISPLAY
"Pop-Up" and
“Auto-
Range”
Non-Peaks
Display
continued
060-4241-000 • Rev. E - December 2003
MK V & MK VII EGPWS Pilot Guide 33
PEAKS
DISPLAY
continued
is presented the same as the color of the terrain display
containing that elevation (i.e., red if the terrain/obstacle with
that elevation is depicted as red in the terrain plan view, yellow
if yellow, etc.).
When the aircraft is 500 feet (250 with gear down) or less
above the terrain in view (yellow or red is displayed), the Peaks
color scheme is identical to the standard display, with the exception
of the addition of sea level when supported by the
display.
Note: some displays do not support cyan (blue) and will not
display sea level in this case.
Note: Differences may exist between the highest terrain/
obstacle being displayed and the digital elevation value/
color of the "Peaks" numbers at or near the top and sides
of the display.
The following illustrate the Peaks display at a low relative
altitude.
High Density Red
High Density Yellow
Low Density Yellow
Low Density Green
Ref Altitude + 2000
Ref Altitude + 1000
Ref Altitude -250/-500
(Maximum Elevation Number)
Reference
Altitude
Black
Sea Level Cyan
High Density Green
Ref Altitude -1000
Ref Altitude -2000
(Minimum Elevation Number)
Reference Altitude is projected down from actual aircraft altitude to provide a 30 second advance
display of terrain when descending more than 1000 FPM.
Terrain is not shown if it is below the lowest band and/or is within 400 feet (or lower if version
-218-218 is installed) of the runway elevation nearest the aircraft. Sea level water is displayed if
supported by the display.
Honeywell MFRD shown
060-4241-000 • Rev. E - December 2003
34 MK V & MK VII EGPWS Pilot Guide
The following illustrate the Peaks display at a high relative
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