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GROUND SPOILER CONTROL
Spoilers 1 to 5 act as ground spoilers.
When a ground spoiler surface on one wing fails, the symmetric one on the other wing is
inhibited.
Arming
The pilot arms the ground spoilers by pulling the speedbrake control lever up into the armed
position.
Full extension
The ground spoilers automatically extend during rejected takeoff, at a speed greater than
72 knots, or at landing when both main landing gears have touched down, when :
~ Ground spoilers are armed and all thrust levers are at idle, or
~ Reverse is selected (on at least one engine, other thrust lever at idle), if ground spoilers
 were not armed.
Partial extension
The ground spoilers partially extend (10~) when reverse is selected (on at least one
engine's other thrust lever, at or near idle) and one main landing gear strut is compressed.
This partial extension, by decreasing the lift, eases the compression of the second main
landing gear strut, and consequently leads to full ground spoiler extension.
Retraction
The ground spoilers retract :
~ After landing, or after a rejected takeoff, when the ground spoilers are disarmed
Note : If ground spoilers are not armed, they extend at the reverse selection and retract
       when idle is selected.
During a touch and go when at least one thrust lever is advanced above 20~
Note : After an aircraft bounce, the ground spoilers remain extended with the thrust levers
       at idle.
CCM ALL
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┃I  -~ A318                      ┃FLIGHT CONTROLS ┃1.27.10     P 13  ┃
┃  .*,,.8, ,, ~L,~ A319          ┃                ┃                  ┃
┃ Lli,~ A320                     ┃                ┃                  ┃
┃                                ┃                ┣━━━━┳━━━━┫
┃      A~7-~'M" A321             ┃   DESCRIPTION  ┃SEQ 001 ┃REV 30  ┃
┃   FLIGHT CREW OPERATING MANUAL ┃                ┃        ┃        ┃
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R
R
R
R
R
R
The landing gear touchdown condition is triggered for both main landing gear, either when
their wheel speed is greater than 72 knots, or when their landing gear struts are
compressed and the radio altitude is very low (RA < 6 feet).
For the ground spoiler logic, idle signifies :
Thrust lever position < 4~ or < 15~ when below 10 ft
SPOILERS
EXTENSION
PARTIAL
SPOILER
EXTENSION
EEM ALL
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┃                                ┃                            ┃1.27.10     P 14      ┃
┃                                ┃                            ┣━━━━━┳━━━━━┫
┃I  ~-2 A318                     ┃I        FLIGHTDESCRIPTION  ┃SEQ 100 1 ┃I REV 24  ┃
　
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本文鏈接地址：AIRBUS A320 Flight Crew Operating Manual3(80)