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next highest 10 foot increment.
• When rotated rapidly, the displayed altitude changes at two to four times
the normal rate.
1000 – the altitude selector changes in 1,000 foot increments.
Rotate – sets the altitude in the altitude window and on the PFD and HUD altitude
indication display.
Push –
• During climb or descent with altitude constraints, each push deletes the
next waypoint constraint between the airplane altitude and the altitude
window.
• During climb with no altitude constraints, and the altitude window set
above the FMC cruise altitude, the cruise altitude is changed to the
altitude window value.
• During cruise:
• with the altitude window set above or below FMC cruise altitude, the
FMC cruise altitude resets to the altitude window altitude
• if in VNAV PTH or VNAV ALT pitch mode, the airplane begins a
climb or descent toward the altitude window altitude
• within 50 NM of the top–of–descent (T/D) point, with the altitude
window set below cruise altitude, the airplane initiates the descend
now (DES NOW) feature.
Push –
• engages altitude (ALT) as the pitch mode
• ALT is displayed on the PFD and HUD pitch flight mode annunciator
• the AFDS commands pitch to maintain the altitude when the switch was
pushed.
Illuminated (white) – the altitude hold mode is engaged.
Push –
• Transfer the value from the lower line to the upper line. If upper line was
blank/closed, it now opens to the uplinked ATC value. Lower line blanks
after the transfer.
2 Altitude Increment Selector (outer)
3 Altitude Selector (inner)
4 Altitude HOLD Switch
5 Altitude Hold Light
6 Uplink Transfer (XFR) Switch
787 Flight Crew Operations Manual
Automatic Flight -
Controls and Indicators
4.10.14 Boeing Proprietary
The ATC uplink function for altitude is always enabled. For immediate clearances,
pushing the data link ACCEPT button displays the clearance altitude value in the
lower line of the window. Pushing the transfer (XFR) switch transfers the value
from the lower line to the upper line. Pushing the data link CNCL button removes
the clearance from the lower line.
For conditional clearances, pushing the ACCEPT button displays the new altitude
value automatically in the lower line only after the clearance condition is met.
Uplinked clearances are preceded by the letters "UL".
Autopilot Flight Director Approach Mode Controls
Push –
• arms, disarms, engages, or disengages localizer (LOC) or final approach
course (FAC) as the roll mode
• displays LOC or FAC in white (armed) on the PFD and in green on the
HUD roll flight mode annunciator before localizer or course capture
• displays LOC in green (engaged) on the PFD and in green on the HUD
roll flight mode annunciator after localizer or course capture
• arms the AFDS to capture and track inbound on the front course or IAN
final approach course
• the capture point varies based on range and intercept angle
• capture can occur when an intercept track angle is within 120 degrees of
the localizer or final approach course.
The localizer / final approach course mode can be disarmed before capture by:
• pushing the LOC/FAC switch a second time, or
• selecting LNAV.
7 ATC Uplinked Altitude
1 Localizer / Final Approach Course (LOC/FAC) Switch
HOLD APP
LOC/FAC
A/P
ALTITUDE
17000
12000
OFF
ON
F/D
AUTO 1000
XFR
UL
MODE CONTROL PANEL (MCP)
PRELIMINARY
1
2
3
4
787 Flight Crew Operations Manual
Automatic Flight -
Controls and Indicators
Boeing Proprietary 4.10.15
The localizer / final approach course mode can be disengaged after capture by:
• selecting a roll mode other than LNAV,
• pushing a TO/GA switch,
• pushing the APP switch,
• disengaging the autopilot and turning both flight director switches off, or
• Engaging an autopilot when in flight director only.
Illuminated (white) – the localizer or final approach course mode is armed or
engaged.
Push –
• arms, disarms, engages, or disengages localizer (LOC) as the roll mode
and glideslope (G/S) as the pitch mode
• displays LOC and G/S in white (armed) on the PFD roll and pitch flight
mode annunciators prior to localizer and glideslope capture
• displays LOC and G/S in green (engaged) on the PFD roll and pitch flight
mode annunciators after each one is captured
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787机组操作手册Flight Crew Operations Manual 1(140)
