A380 spoilers?
Thread Starter
Joined: Mar 2005
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From: UK
A380 spoilers?
I've noticed on the A380, that when the flaps retract after landing there is a commanded rise of the spoilers by a couple of degrees. I can't work out what purpose this serves as the same doesn't happen when the flaps retract after takeoff? I've never come across this on any other type before.
You'll see an example of this if you scrub to 6:40 on THIS VIDEO
You'll see an example of this if you scrub to 6:40 on THIS VIDEO
Joined: Oct 2008
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From: Above & Beyond
From the video the flaps retract quite a bit. Im guessing that the spoilers will scratch the surfact of the flaps which causes more drag and also would you want scratches on the upper surface of the wings ?
As I said its just going off the video you have supplied.
As I said its just going off the video you have supplied.
Joined: Aug 2008
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From: Here!
When the flaps are in other config than 0 is because the plane needs more lift, in order to help that or make it more efficient, the spoilers drop a couple of degrees to give the wing a more curved shape, therefore, the upper part of the wing can accelerate more air faster and create more lift out of it, that same ''aero technology'' is being applied on the 787, check it for your self at smartcockpit on 787 misc part, systems and performance page 22.
PiSkiS
PiSkiS
Joined: Dec 2001
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From: what U.S. calls Žold EuropeŽ
A picture from the first Singapore A380 after Landing in SYD in December 2007
I taxied out at night, so I do not know what the spoilers did. During taxi after landing the spoilers stay extende about 100 mm even with the flaps already fully retracted, and return to the stored position at engine shutdown.
I suppose also this is to minimize damage to the flap paint during ground operation, once the flaps are extended enough to avoid spoiler contact, they will retract.
I taxied out at night, so I do not know what the spoilers did. During taxi after landing the spoilers stay extende about 100 mm even with the flaps already fully retracted, and return to the stored position at engine shutdown.I suppose also this is to minimize damage to the flap paint during ground operation, once the flaps are extended enough to avoid spoiler contact, they will retract.
Joined: May 2009
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From: Australia, maybe
The last 2 posts were close, but not quite correct.
A380 FCOM
A380 FCOM
Spoilers extend 5 degrees on ground when flaps are fully retracted or moving, and at least one engine is running. This prevents friction between spoilers and flaps which could damage the spoilers.
