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prompt on Legs pages. Position DATA is available for display in plan mode
• MAP
• VOR
• APP (approach)
• PLN(plan)
• track
• heading
• route
• postion trend vector
• range to selected altitude
• map range scale
• ground speed
• true airspeed
• wind direction and speed
• next waypoint distance
• waypoint estimated
time of arrival
• selected navigation data points
• TCASTrafficDisplay
December 01, 1999
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
10.40.2 D6-30151-425
Flight Instruments, Displays -
Navigation Displays
ND Information
Heading
Heading is supplied by the selected IRU. The ND compass rose can be referenced
to magnetic north or true north. The Heading Reference switch is used to manually
select magnetic or true reference. The compass display references true north when
the airplane is north of 82° N latitude ( or north of 70°N between 80° W and 130°
W) or south of 82° S latitude (or south of 60°S between 120° E and 160°E).
If the ND is referenced to true north and the airplane descends 2,000 feet at more
than 800 feet per minute, the heading reference box changes color to amber and
flashes for 10 seconds. The box returns to white when the airplane climbs 2,000
feet at more than 500 feet per minute.
Track
Track is supplied by the FMC during normal operation and by the CDU in
alternate navigation.
Traffic
Traffic information from the TCAS can be displayed on the ND. TCAS is
described in Chapter 15, Warning Systems.
Weather Radar
Weather radar information displays on the ND. The weather radar system is
described in Chapter 11, Flight Management, Navigation.
Failure Flags and Messages
Failure flags display for system failures or invalid information. Indications are
removed or replaced by dashes when source system information is not available.
The message EXCESS DATA displays on the ND if the amount of information
sent to the ND exceeds the display capability. The message can be removed by
deselecting one or more of the EFIS control panel map switches (STA, WPT,
ARPT, DATA).
Typical ND Map Displays
Typical ND map displays are shown on the following pages. Examples of other
ND displays (centered map, approach, VOR, and plan modes) are shown in
Section 10 of this chapter.
October 1, 2000
747 Operations Manual
Flight Instruments, Displays -
Navigation Displays
Copyright © The Boeing Company. See title page for details.
D6-30151-425 10.40.3
STA (station)
selected.
366 TRK 140 MAG
VD
336`/15
GS
STA
IRS(3)
40
YKM
ELN
FREQ
SBJ
GRH
TAS 352 GRH
32.5 NM
0835.4 Z
WPT
(waypoint)
selected.
20
366 TRK 140 MAG
VD
MATTH
ANVIL
336`/15
GS
IRS(3)
FREQ
WPT
BISSL
SEA24
GRH
TAS 352 GRH
32.5 NM
0835.4 Z
December 01, 1999
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
10.40.4 D6-30151-425
Flight Instruments, Displays -
Navigation Displays
ARPT
(airport)
selected.
366 TRK 140 MAG
VD
KDKK
KKWK
KMAT
336`/15
GS
IRS(3)
40
FREQ
ARPT
GRH
KYKM
TAS 352 GRH
32.5 NM
0835.4 Z
DATA
selected.
366 TAS 352 TRK 140 MAG
GRH
FREQ
24000
40
IRS(3)
GS
336`/15
VD
GRH
18870
0839Z
0835Z
0835.4 Z
32.5 NM
December 01, 1999
747 Operations Manual
Flight Instruments, Displays -
Navigation Displays
Copyright © The Boeing Company. See title page for details.
D6-30151-425 10.40.5
ND Symbology
The following symbols display on each ND, depending on EFIS control panel
switch selections. Colors indicate the following:
• W (white) – present or modified status, range scales, armed flight mode
annunciations
• G (green) – dynamic conditions, active flight mode annunciations
• M (magenta or pink) – active waypoint and route, command information,
pointers, symbols, fly–to condition
• B (blue) – inactive or background information, ADF symbols
• A (amber) – cautions, faults, flags
• R (red) – warnings
POS
(position)
selected.
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