Do the A380 ailerons act as air brakes on landing?

binaryfunt 09/15/2017. 3 answers, 3.473 views
landing airbus-a380 ailerons

Last month I was on an Emirates A380 to London Heathrow. I noticed on the landing, the right ailerons were fully up along with the spoilers when decelerating on the ground. Are the ailerons configured for acting as air brakes on landings? Or was the pilot perhaps counteracting a crosswind?

3 Answers

ymb1 07/30/2017.

Answer is yes, good eye. From the A380 flight crew manual:

enter image description here

You can watch it here.

Koyovis 08/01/2017.

Yes the ailerons deflect upwards after main wheel touchdown to dump as much lift as possible: they work as lift dumpers, together with the spoilers which are deployed first.

enter image description here

Source: an A380 pilot plus the FCOM.

UpdateJust arrived on an A320, from could see both ailerons and they both deflect upwards as well after touchdown.

Martin Argerami 07/30/2017
Do you still have roll control on the ground? Or, related, wouldn't a strong crosswind tend to lift the upwind wing?
2 Koyovis 07/30/2017
Roll control on the ground is done by the landing gear:). It's important to let the tyres do their job as fast as possible to avoid skidding.
ymb1 08/01/2017
@Koyovis - RE: A320, I can't see it on multiple YouTube videos.

aeroalias 07/30/2017.

The ailerons, along with the spoilers are configured to act as lift dumpers on touchdown in most of the newer Airbus aircraft. This was introduced in the Elevator Aileron Computer ELAC standard L96, where,

Aileron up deflection at ground spoiler extension becomes basic function. - Download Hi-Res Songs

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