306 26
MAP MODE

EHSI - Navigation, Map and Plan Displays (Example)
Figure 11 (Sheet 1)

C88009
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A

737-300/400/500
MAINTENANCE MANUAL

NO.
1
2
 3
 4
 5
 6
 7
 8
 910 11
12 13
14 15 16 17 18 19 20 21 22 23 24
SYMBOLS ON PLAN & MAP MODE
NORTH UP POINTER * ACTIVE FLIGHT PLAN OFFSET PATH INACTIVE FLIGHT PLAN FLIGHT PLAN CHANGES ACTIVE WAYPOINT ALTITUDE PROFILE POINT CONDITIONAL WAYPOINT HOLDING PATTERN PROCEDURE TURN AIRPORT PLUS RUNWAY (> 40NM)
SELECTED RUNWAY

(. 40NM)

EXTENDED RUNWAY CL
SELECTED REF POINTS SEL REF PT RADIALS INDENTIFIERS HDG/TRK SCALE SELECTED HDG MARKER PRESENT HDG MARKER DISTANCE TO GO ETA (ZULU TIME) TRACK ANNUNCIATOR HEADING/TRACK INDEX TRACK READOUT
COLOR  NO.  SYMBOLS ON PLAN & MAP MODE 
G  25  MAG/TRUE ANNUNCIATOR 
M  26  AIRPLANE REF SYMBOL 
M  27  VOR RADIAL 
C  28  NAV AIDS (A - VOR, 
W  B - DME/TACAN, C - VORTAC) 
M  29  INACTIVE WAYPOINT . 240NM 
G  30  AIRPORT 
W  31  ROUTE DATA 
W/M/C  32  SELECTED HEADING VECTOR 
W/M/C  33  WIND DIRECTION POINTER 
W/C  34  RANGE TO ALTITUDE 
W  35  STRAIGHT TREND VECTOR 
36  CURVED TREND VECTOR 
W 
37  RANGE SCALE (HALF RANGE VALUE) 
G  38  VERTICAL DEV SCALE 
G  39  VERTICAL DEV POINTER 
G/W/M  40  SYSTEM SOURCE ANNUN 
W  41  WIND DIRECTION/SPEED READOUT 
M  42  DEVIATION BAR 
W  43  WAYPOINT IDENTIFIER 
W  44  BEARING TO WAYPOINT 
W  45  DESIRED TRACK 
G  46  LATERAL DEVIATION SCALE 
W  47  LEG CHANGE ALERT 
W 

COLOR LEGEND
G - GREEN
M - MAGENTA
C - CYAN
W - WHITE
Y - YELLOW

* SYMBOL ON PLAN MODE ONLY
EHSI - Navigation, Map and Plan Displays (Example)
Figure 11 (Sheet 2)

COLOR
G W G C/G
W
M/W
M
W
G
W
W
W
W
M
G
W
M
M
M
M
W
Y

C87528
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH DUAL FMC ú

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 ú  CONFIG  2
 ú  03  Page 35
 ú  Jul 15/95 

BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 (1)  
Plan Mode

 (a)  
This mode is primarily used to construct and display the FMC flight plan.

 (b)  
The upper portion of the EHSI displays track (or heading), distance and estimated time of arrival (ETA) to the next waypoint.

 (c)  
The portion of the EHSI below the azimuth tape displays the flight plan data, and will be presented in a north up orientation.

 (2)  
NAV Mode

 (a)  This mode is used to display navigation information in a manner similar to an analog HSI presentation. The following FMCS navigation signals are displayed on the EHSI: 1) Track
 a)  Track is the direction the airplane is presently moving with respect to magnetic north, and is displayed on the EHSI by a track line which extends from the airplane symbol to a triangular shaped symbol positioned along the azimuth card.
 2) Desired Track a) FMCS desired track is displayed on the EHSI, by the course arrow read against the azimuth card. 3) Cross Track Deviation
 a)  The course deviation bar indicates the deviation from the desired track. The course deviation bar is read relative to the course deviation scale.
　
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