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┃ A~7-~'M" A321 ┃ DESCRIPTION ┃ ┃ ┃
┃ FLIGHT CREW OPERATING MANUAL ┃ ┃ ┃ ┃
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SPEEDBRAKES AND GROUND SPOILERS
SPEEDBRAKE CONTROL
The pilot controls the speedbrakes with the speedbrake lever.
The speedbrakes are actually spoilers 2, 3 and 4.
Speedbrake extension is inhibited if :
- SEC1 and SEC3 both have faults.
- An elevator (L or R) has a fault (in this case only spoilers 3 and 4 are inhibited).
- Angle-of-attack protection is active.
- Flaps are in configuration FULL.
- Thrust levers above MCT position
- Alpha floor activation
If an inhibition occurs when the speedbrakes are extended, they retract automatically and
stay retracted until the inhibition condition disappears and the pilots reset the lever. (The
speedbrakes can be extended again 10 seconds or more after the lever is reset).
When a speedbrake surface on one wing fails, the symmetric one on the other wing is
inhibited.
Note :
For maintenance purposes, the speedbrake lever will extend the N~ I surfaces
when the aircraft is stopped on the ground, whatever the slat/flap configuration~
When the aircraft is flying faster than 315 knots or Mach 0~75 with the autopilot
engaged, the speedbrake retraction rate is reduced (Retraction from FULL to in
takes about 25 seconds)~
The maximum deflection for spoilers is
~ 25~ for spoilers 3 and 4
~ 12.5~ for spoilers 2 in configuration 3,
and 17~5~ in other configurations
For these surfaces (which perform both roll and speed-brake functions) the roll function has
priority. When the sum of a roll order and a simultaneous speedbrake order on one surface
is greater than the maximum deflection available in flight, the same surface on the other
wing is retracted until the difference between the two surfaces is equal to the roll order.
CCM ALL
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┃ ┃ ┃1.27.10 P 12 ┃
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┃I ~-~ A318 ┃I FLIGHTDESCRIPTION ┃SEQ 100 1 ┃I REV 30 ┃
┃ aw aw ,, ~L,~ A319 ┃ ┃ ┃ ┃
┃ Lli,~ A320 ┃ ┃ ┃ ┃
┃ A~7-~'M" A321 ┃ ┃ ┃ ┃
┃ FLIGHT CREW OPERATING MANUAL ┃ ┃ ┃ ┃
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本文链接地址：
AIRBUS A320 Flight Crew Operating Manual3(79)
