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• electrical power is supplied to the related stabilizer channel
• if unscheduled stabilizer motion is detected, electrical power to the related
stabilizer channel is automatically shut off.
CUTOUT – shuts off electrical power to the related stabilizer channel.
Rudder Trim Controls
Indicates units of rudder trim.
4 Alternate (ALTN) PITCH TRIM Switches
5 Stabilizer (STAB) Cutout Switches
1 RUDDER Trim Indicator
AFT AISLE STAND
RUDDER
NOSE NOSE
L R
RUDDER TRIM
0.0
EICAS DISPLAY
1
2
787 Flight Crew Operations Manual
Flight Controls -
Controls and Indicators
Boeing Proprietary 9.10.5
Spring–loaded to neutral.
Rotate –
• trims the rudder in the desired direction
• the trim runs at high speed with the knob rotated past the first left or right
detent
• the rudder pedals move with rudder trim operation.
Rudder/Brake Pedals
Push – deflects the rudder in the desired direction.
Refer to Chapter 14, Landing Gear, for brakes and nosewheel steering description.
Speedbrake Lever
On the ground:
• the speedbrake lever moves to DOWN and all spoiler panels retract if
either thrust lever is advanced to the takeoff thrust position
• the speedbrake lever moves to UP and all spoiler panels extend if both
reverse thrust levers are raised to the reverse idle detent.
• the speedbrake lever moves to UP and all spoiler panels extend if above
85 KIAS with both throttles at idle.
In the air:
• the speedbrake lever moves to DOWN and all spoiler panels retract if
either throttle is advanced to high thrust or the airplane reaches a high
angle of attack.
2 RUDDER Trim Selector
1 Rudder Pedals
1
787 Flight Crew Operations Manual
Flight Controls -
Controls and Indicators
9.10.6 Boeing Proprietary
DOWN (detent) – all spoiler panels are retracted.
ARMED –
• the auto speedbrake system is armed
• after landing, the speedbrake lever automatically moves to UP and the
spoiler panels extend.
UP – the required spoiler panels extend to their maximum in–flight or on–ground
position (intermediate positions can be selected).
1 Speedbrake Lever
UP
ARMED
DOWN
CONTROL STAND
1
787 Flight Crew Operations Manual
Flight Controls -
Controls and Indicators
Boeing Proprietary 9.10.7
Flap System
Flap Controls
Primary mode – positions the slats and flaps hydraulically.
Secondary mode – positions the slats and/or flaps electrically if hydraulic
operation fails.
1 – prevents inadvertent retraction of the slats.
20 – prevents inadvertent retraction of the flaps past the go–around position.
Push (ALTN displayed) –
• arms the alternate flap control mode
• arms the alternate flaps selector
• disables primary and secondary flap/slat mode operation
• asymmetry/skew and uncommanded motion protection, autoslat, and
flap/slat load relief are not available
• the flap lever is inoperative.
1 Flap Lever
2 Flap Gates
3 Alternate Flaps Arm (ALTN FLAPS ARM) Switch
ALTN
ALTN FLAPS
ARM
RET EXT
OFF
UP
5
1
30
25
20
15
FLAP
CONTROL STAND
1
2
3
4
787 Flight Crew Operations Manual
Flight Controls -
Controls and Indicators
9.10.8 Boeing Proprietary
RET – the slats and flaps are electrically retracted.
OFF – alternate flaps are deactivated.
EXT –
• the slats and flaps are electrically extended
• maximum extension is flaps 20, with the slats at the midrange position.
Flap Limit Placard
Flaps extended speed limits.
4 Alternate Flaps Selector
1 Flap Limit Placard
CENTER FORWARD PANEL
30 - 170K
25 - 180K
20 - 210K
15 - 215K
5 - 230K
1 - 250K
FLAP LIMIT
1
787 Flight Crew Operations Manual
Flight Controls -
Controls and Indicators
Boeing Proprietary 9.10.9
Normal Flap Position Indication
Displays combined flap and slat positions when all surfaces are operating
normally and control is in the primary (hydraulic) mode. The indicator shows
continuous motion.
The indication is no longer displayed 10 seconds after slat retraction.
UP – the slats and flaps are retracted.
1 – the slats extend to the midrange position.
5, 15, and 20 –
• the slats remain in the midrange position
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787机组操作手册Flight Crew Operations Manual 2(66)
