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737-600/700/800/900 TRAINING MANUAL
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31-62-00-314.002 Rev 1 07/10/1997
VOR FREQUENCY/ IDENTIFIER
SELECTED COURSE
DME DISTANCE
SELECTED HEADING
VOR 1 BEARING POINTER
TRACK
VOR COURSE DEVIATION BAR
SELECTED COURSE POINTER
VOR 2 BEARING POINTER RECIPROCAL
VOR 2 FREQUENCY/ DME DISTANCE
ANNUNCIATION CDS - ND - CENTERED VOR
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CDS -- ND - EXPANDED MAP MODE General
To show the expanded map display, select the map position on the EFIS control panel. Push the CTR button on the EFIS control panel if the centered map display shows. This changes the display to the expanded map display.
The map display shows the FMC flight plan and other navigation data. To see other map data, use the map switches on the EFIS control panel.
Airplane Symbol
The airplane symbol shows at the lower center of the expanded map mode. The airplane symbol is a white triangle with no fill. The airplane symbol does not move. Other pointers and displays move in relation to the airplane symbol.
Compass Rose
A part of the compass rose shows near the top of the expanded map display. Approximately 90 degrees of the compass rose arc is in view forward of the airplane heading. The compass rose has index marks at 5 degree intervals. The compass rose arc position also shows the maximum range of the extended map display.
Airplane Present Heading
Airplane present heading shows as a white numerical value in the center above the compass rose in a box.
737-600/700/800/900 TRAINING MANUAL
Directly below the heading box is the white heading pointer. The heading pointer does not move. To the left of the heading box is the green HDG annunciation.
Track Line
The white track line shows above the airplane symbol and extends to the compass rose arc. The track line shows the current track of the airplane.
Airplane Present Track
The track extends from the airplane symbol to the compass rose and turns along the compass rose to accurately show present track.
MAG/TRU Annunciation
The MAG/TRU annunciation is to the right of the airplane heading value. MAG shows if the heading value is set to a reference of magnetic North. TRU shows if the reference is to true North.
MAG/TRU Highlight Annunciation
The MAG/TRU highlight annunciation gives alerts to the crew when there is a change from TRU to MAG or from MAG to TRU. It also gives alerts to the crew during landing if the reference is TRU.
The MAG/TRU highlight annunciation shows for these conditions:
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CDS -- ND - EXPANDED MAP MODE
- For 10 seconds, on a transition from TRU to MAG,
and is green
- When TRU is the reference, and is white
-When there is a specified descent rate, and TRU is the reference; in this case the symbol goes amber and goes on and off for the first 10 seconds.
Map Display Range
The range of the expanded map display is selectable on the EFIS control panel. The selectable ranges are 5, 10, 20 40, 80, 160, 320, and 640 nautical miles (NM).
The range of the display is measured from the nose of the airplane symbol to the compass rose arc.
The range value shows white next to the track line at the mid point between the airplane symbol and the compass rose arc. The value is equal to one half of the selected range.
Range Marks
Three range marks show on the track line of the expanded map display. The marks are white. Each mark shows 1/4 of the selected range. For example, if 80 NM range is the selected range, the mark near the airplane symbol shows 20 NM, the middle mark shows 40 NM, and the far mark shows 60 NM. The compass rose arc shows 80 NM.
737-600/700/800/900 TRAINING MANUAL
Range Arcs
Three range arcs replace the range marks when weather radar is selected to show or when you push the TFC button on the EFIS control panel. The arcs are white. Each arc shows 1/4 of the selected range. For example, if 80 NM range is selected, the arc near the airplane symbol shows 20 NM, the middle arc shows 40 NM, and the far arc shows 60 NM. The compass rose arc shows 80 NM.
Curved Trend Vector
The white curved trend vector shows at the nose of the airplane symbol and extends to the base of the track line. The curved trend vector shows the airplane curved path directional trend related to ground speed and cross track acceleration in relation to the map display. The end point of each vector segment shows the airplane predicted position at 30, 60, and 90 seconds in the future.
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