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Copyright © The Boeing Company. See title page for details.
D6-30151-425 10.10.37
Standby Attitude Indicator
Standby attitude indicator displays airplane attitude.
1 Bank Indicator and Scale
Indicates airplane bank.
Scale marks at 0, 10, 20, 30, 45 degrees.
2 Glide Path (G/P) Flag
Displays when glide slope information unreliable.
3 Airplane Symbol
Indicates airplane position.
4 Attitude (GYRO) Flag
Displays when attitude information unreliable.
5 Glide Slope Indicator
Indicates glide slope position relative to the airplane.
6 Horizon Line and Pitch Scale
Indicates position of horizon relative to the airplane.
Scale marks in five degree increments.
1
6
CENTER PANEL
2
3
10
4
5
7
8
9
APP
OFF
APP B/CRS
December 01, 1999
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
10.10.38 D6-30151-425
Flight Instruments, Displays -
Controls and Indicators
7 Localizer Indicator
Indicates localizer position relative to the airplane.
8 Localizer (LAT) Flag
Displays when localizer information unreliable.
9 Caging Control
Pull - levels horizon with airplane symbol.
10 Approach Selector
OFF - glide slope and localizer indicators and flags retracted from view.
APP (Approach) - glide slope and localizer information displayed. Left ILS
receiver used.
B/CRS (Back Course) - reverses sensing for localizer information.
Standby Airspeed Indicator
Standby airspeed indicator displays airspeed from auxiliary pitot 1 and alternate
static source.
1 Airspeed Pointer
Indicates uncorrected airspeed.
Standby Altimeter
Standby altimeter displays barometric altitude from alternate static source.
CENTER PANEL
1
IAS
60
80
100
120
140
160
180
200
220
240
250
300
350
400
KNOTS
0
December 01, 1999
747 Operations Manual
Flight Instruments, Displays -
Controls and Indicators
Copyright © The Boeing Company. See title page for details.
D6-30151-425 10.10.39
1 Altitude Display
Displays uncorrected barometric altitude.
2 Altitude Pointer
Indicates uncorrected barometric altitude.
One full rotation of pointer is 1,000 feet.
3 Barometric Setting Control
Rotate – sets altimeter barometric setting.
4 Barometric Setting Display
Displays selected barometric reference in Hectopascals (MB/HPA) and inches
(IN. HG).
Radio Magnetic Indicator
Radio magnetic indicator displays heading and VOR and ADF bearing to the
selected station.
Heading information is provided by the right or center IRU as selected by the F/O
IRS source selector.
CENTER PANEL
1
2
3
4
IN. HG
29 92
6 4
8
9
0
1
2
7 3
BARO
MB/HPA
5
1013
ALT
December 01, 1999
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
10.10.40 D6-30151-425
Flight Instruments, Displays -
Controls and Indicators
1 Heading (HDG) Flag
Displays when heading invalid.
2 VOR/ADF Selectors
VOR - VOR information provided to related pointer.
ADF - ADF information provided to related pointer.
3 Wide Pointer
Indicates right VOR or ADF bearing to selected station.
4 Narrow Pointer
Indicates left VOR or ADF bearing to selected station.
5 Pointer Flags
Display when selected information invalid.
CAPTAIN’S PANEL
1
2
3
4
5
VOR
VOR
ADF ADF
December 01, 1999
747 Operations Manual
Flight Instruments, Displays -
Controls and Indicators
Copyright © The Boeing Company. See title page for details.
D6-30151-425 10.10.41
Clock
1 Chronograph (CHR or CLOCK) Switch
Push – subsequent pushing starts, stops, resets the chronograph.
2 Chronograph Pointer
Indicates chronograph seconds.
3 Elapsed Time (ET) Selector
Controls elapsed time function.
RESET – returns elapsed time display to zero (spring loaded to HLD).
HLD (Hold) – stops elapsed time display.
RUN – starts elapsed time display.
4 DATE Switch
Push -
• displays date (alternates day and month, then year) on GMT display
• subsequent push returns display to time (hours, minutes) on GMT display.
5 GMT Display
Displays time (hours, minutes).
Displays date when date switch pushed.
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