I A P 2 0 2 3 . 0 0 1 - A F M / I R I S T E X A N I I P A G E | 151
FOR SIMULATION USE ONLY – NOT A TRAINING AID
When the map display is in the rose map format, the compass rose operates similar
to the compass rose on the PFD except the compass rose is expanded to fill the
extra available screen space on the NAV display and fixed tick marks are added on
the outside of the compass scale at 45°, 90°, 135°, 180°, 225°, 270° and 315° around
the scale.
When the map display is in the arc map format, the compass rose operates similar
except that only the upper 90° arc of the compass is displayed. This 90° arc is
expanded to fill the available screen space, and the fixed outer tick marks are
displayed at 30° on either side of the top of the scale.
In rose plan format, the FMS active flight plan is displayed with successive
waypoints entered (using PREV or NEXT) as a means to review the route of flight.
The rose plan is displayed relative to true north.
HEADING BUG
When the map display is in the rose format, the heading bug operates the same as
the heading bug in the PFD. When the map display is in the arc format, the heading
bug operates the same as the heading bug in the PFD except that when the bug is
not in the upper 90° arc range, half of the bug is displayed at the end of the arc in
the direction of the shortest turn to bring the bug into view.
Also, the heading bug caption for entry of the heading bug value is not displayed on
the NAV display. Entry of the heading value is entered using the shortcut on the PFD
or directly on the UFCP.
BEARING POINTERS
The bearing pointers on the NAV display operate the same as the bearing pointers
in the PFD except that in the arc format the head or tail of the pointer is only
displayed if it is pointing to a value within the 90° range.
FLIGHT PLAN
Flight plan routes are shown on the map display as a series of waypoints connected
by solid lines. The active waypoint and flight plan leg are displayed in magenta. All
other flight plan waypoints and legs are displayed in white.
Flight plan waypoints and legs are displayed at the appropriate bearing and
distance from the aircraft reference symbol on the compass rose (or compass arc)
based on the selected map display range and the current aircraft heading.
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