Pop-Up And Auto-Range - Honeywell EGPWS MK V Pilot's Manual

Non-Peaks
Display
continued
"Pop-Up" and
"Auto-
Range"
PEAKS
DISPLAY
34
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 au-
tomatic 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 dis-
play is flashed or changed 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
060-4241-000 • Rev. D - March 2000
MK V & MK VII EGPWS Pilot Guide