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HUD Groundspeed and Wind Speed
Indicates wind speed and direction with respect to display orientation.
HUD Failure Flags
Note: HUD failure flags replace the appropriate display to indicate source system
failure, or lack of computed information.
1 Wind Speed and Direction
2 Groundspeed
1
2
PRELIMINARY
787 Flight Crew Operations Manual
Flight Instruments, Displays -
Head-Up Display System -
Displays
Boeing Proprietary 10.12.15
HUD-Unique Indications
The HUD does have some unique indications not found on the PFD. Those
indications are described in detail here.
Pitch Scale Chevrons and Pitch Scale Compression
Flight Director
ILS Glideslope
Vertical Speed
Altitude
Landing
Altitude
Attitude
Heading
ILS Localizer
Radio Altitude
No V Speeds
Speed (Airspeed)
Speed Limit
Selected Speed
Distance
Measuring
Equipment
Flight Path
Vector
Backup
Airspeed
PRELIMINARY
Backup
Altitude
HUD Align
Time Critical
Annunciations
50 50
40 40
30 30
20 20
3
-10 -10
-20 -20
-30 -30
-40 -40
1 2
787 Flight Crew Operations Manual
Flight Instruments, Displays -
Head-Up Display System -
Displays
10.12.16 Boeing Proprietary
Superimposed over compressed pitch scale with tip at -20 degrees, directing pilot
to apply pitch up.
Superimposed over compressed pitch scale with tip at +30 degrees, directing pilot
to apply pitch down.
Pitch scale will compress if the horizon reference line or the flight path symbol
cannot be shown in the display because of excessive pitch angle.
Digital Heading
Digital heading displays current heading and corresponds to the heading on the
horizon reference line.
1 Pitch Scale Chevron (Lower)
2 Pitch Scale Chevron (Upper)
3 Pitch Scale Compression
1 Digital Heading
1
GS
SEL HDG 052
05 06
250
300
250
284
200
220
280
HOLD LNAV FLCH SPD
9200
8800
9000
UP
3100
-5 -5
-1200VS
5 5
29.92IN
MAG
H051
15
12
9
6
3
36
33
30
11UC/161.
FLT DIR
PRELIMINARY
787 Flight Crew Operations Manual
Flight Instruments, Displays -
Head-Up Display System -
Displays
Boeing Proprietary 10.12.17
Glideslope Reference Line
Display of the glideslope value associated with the active approach.
Digital glideslope value representing the active approach glideslope angle.
1 Glideslope Reference Line
2 Digital Glideslope Value
PRELIMINARY
2
1
787 Flight Crew Operations Manual
Flight Instruments, Displays -
Head-Up Display System -
Displays
10.12.18 Boeing Proprietary
Ground Excessive Deviation – Low Visibility Takeoff (Option)
Indicates excessive localizer deviation during takeoff roll. Flashing triangle points
in direction of runway centerline.
1 Ground Excessive Deviation Symbol
1
PRELIMINARY
787 Flight Crew Operations Manual
Flight Instruments, Displays -
Head-Up Display System -
Displays
Boeing Proprietary 10.12.19
Runway Edge Lines
Calculated position of runway edgelines.
Tick marks corresponding to the touchdown aiming point.
1 Runway Symbol
2 Touchdown aiming point
2
1
PRELIMINARY
787 Flight Crew Operations Manual
Flight Instruments, Displays -
Head-Up Display System -
Displays
10.12.20 Boeing Proprietary
Flight Path Vector Symbol with Guidance Cue
A flight director guidance cue commanding a particular input from pilot.
Displayed only when flight directors are turned on. Fills (solid) during windshear
alerting.
Windshear alerting is described in Chapter 15, Warning Systems.
Displays actual flight path vector of the airplane as derived from IRS.
1 (Flight Director) Guidance Cue
2 Flight Path Vector Symbol
1
Flight Path Vector Symbol with Guidance Cue
2
PRELIMINARY
787 Flight Crew Operations Manual
Flight Instruments, Displays -
Head-Up Display System -
Displays
Boeing Proprietary 10.12.21
Angle of Attack Limit
Referenced to flight path symbol. The distance between the AOA limit symbol
and the flight path symbol represents the margin available to stick shaker.
The AOA limit symbol is displayed during any of the following:
• Angle-of-Attack is within 5 degrees of stick shaker, or
• Stick shaker is active, or
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787机组操作手册Flight Crew Operations Manual 2(98)
