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2 Flap Maneuvering Speeds
Displays flap maneuvering speed for flap retraction or extension for current flap
setting and next lesser flap setting.
Not displayed above approximately 20,000 feet altitude.
3 Landing Reference Speed
Displays VREF speed selected on the CDU (refer to Chapter 11, Flight
Management, Navigation).
VREF speed displays at the bottom of the airspeed indication when the value is off
the scale.
4 Minimum Maneuvering Speed
Indicates maneuver speed margin to stick shaker or low speed buffet.
5 Minimum Speed
Indicates airspeed where stick shaker or low speed buffet occurs.
December 01, 1999
747 Operations Manual
Flight Instruments, Displays -
Controls and Indicators
Copyright © The Boeing Company. See title page for details.
D6-30151-425 10.10.5
Attitude Indications
1 Bank Pointer
Indicates IRS bank in reference to bank scale.
2 Slip/Skid Indication
Displaces beneath bank pointer to indicate slip or skid.
3 Pitch Limit Indication
Indicates pitch limit (stick shaker activation point for existing flight conditions).
Displayed when flaps are not up.
4 Horizon Line and Pitch Scale
Indicates IRS horizon relative to the airplane symbol.
Pitch scale is in 2.5 degree increments.
5 Bank Scale
Fixed reference for the bank pointer.
Scale marks are at 0, 10, 20, 30, and 45 degrees.
20 20
10 10
10 10
PITCH ROLL
1
2
4
3
6
5
7 8
December 01, 1999
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
10.10.6 D6-30151-425
Flight Instruments, Displays -
Controls and Indicators
6 Airplane Symbol
Indicates airplane attitude with reference to the IRS horizon.
7 PITCH Disagree Flag
Displays if Captain’s and First Officer’s PFD pitch attitude disagree.
8 ROLL Disagree Flag
Displays if Captain’s and First Officer’s roll attitude disagree.
Steering Indications
Note: Refer to Chapter 15,Warning Systems, for TCAS Steering Indications and
Time Critical Warnings.
1 Flight Director Command Bars
Indicates flight director pitch and roll steering commands.
Refer to Chapter 4, Automatic Flight.
10 10
10 10
20 20
1
December 01, 1999
747 Operations Manual
Flight Instruments, Displays -
Controls and Indicators
Copyright © The Boeing Company. See title page for details.
D6-30151-425 10.10.7
Radio Altitude Indications
1 Radio Altitude
Displays airplane radio altitude below 2,500 feet AGL.
2 Decision Height
Displays radio altitude set on EFIS control panel.
Display replaced with a large flashing amber DH when radio altitude is at or below
the set DH.
DH not displayed when set below 0 feet.
Flashing amber DH resets:
• upon landing
• on go-around at 75 feet above the set DH
• when DH reset switch is pushed
3 Height Alert
Displays between 1,000 feet and 500 feetAGL during descent.
Does not display when DH reset switch pushed.
A LT
560
DH200 2
1
3
December 01, 1999
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
10.10.8 D6-30151-425
Flight Instruments, Displays -
Controls and Indicators
Instrument Landing System Indications
1 Approach Reference
Displays the selected ILS identifier or frequency and ILS DME distance.
Refer to Chapter 11, Flight Management, Navigation.
2 Approach Course
Displays the selected ILS approach course.
3 Marker Beacon Annunciation
The marker beacon annunciation appears flashing when over one of the marker
beacon transmitters:
• IM – an airway or inner marker beacon
• MM – a middle marker beacon
• OM – an outer marker beacon
Annunciation flashes in cadence with the beacon identifier.
IBFI
DME 3.4
CRS 131
10 10
10 10
MM
1
3
4
5
2
December 01, 1999
747 Operations Manual
Flight Instruments, Displays -
Controls and Indicators
Copyright © The Boeing Company. See title page for details.
D6-30151-425 10.10.9
4 Glideslope Pointer and Scale
Glideslope pointer indicates glideslope position relative to the airplane and:
• is in view when receiving the glideslope signal
• fills in solid when within 2 1/3 dots of the scale center
Scale is in view after the frequency is tuned.
At low radio altitudes, with the autopilot or flight director engaged, scale turns
amber and the pointer flashes to indicate excessive glideslope deviation.
　
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