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A-330/-340 Ailerons  
User currently offlineBlackbird From , joined Dec 1969, posts, RR:
Posted (9 years 11 months 3 weeks 5 days 6 hours ago) and read 908 times:


They appear to have inboards and outboards which are paired together.

How do they work? -- Does the outboards lock out with flaps or slats up? Or does it work by airspeed only?


-AVK

5 replies: All unread, jump to last
 
User currently offlineVC-10 From United Kingdom, joined Oct 1999, 3651 posts, RR: 43
Reply 1, posted (9 years 11 months 3 weeks 5 days 5 hours ago) and read 836 times:
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In low speed mode all 4 ailerons operate. However above 190 Kts, in config 0 (Flaps/slats retracted) the otbd ailerons are contolled to zero deflection.

In some failure modes the otbd ailerons will be used up to 300 kts.




User currently offlineMhsieh From United States of America, joined Jul 2000, 331 posts, RR: 0
Reply 2, posted (9 years 11 months 3 weeks 4 days 2 hours ago) and read 791 times:

I had read several times that on landing, the ailerons on 330/340 deflect UP on both sides to act as spoiler.
However, I have never been able to find any pictures of this. I have only seen landing pictures of spoilers up and ailerons in the drooped position.
Can anyone explain this?

User currently offlineVC-10 From United Kingdom, joined Oct 1999, 3651 posts, RR: 43
Reply 3, posted (9 years 11 months 3 weeks 4 days 1 hour ago) and read 786 times:
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Mhsieh,

This only occurs on the A340-600

User currently offlineLMML 14/32 From Malta, joined Jan 2001, 2520 posts, RR: 8
Reply 4, posted (9 years 11 months 3 weeks 3 days 14 hours ago) and read 766 times:

All Airbus aircraft, including the A320 family, have the aileron droop facility. However on the narrow bodies this option is very seldom taken up by the operator. Interesting re-the aileron doubling as a spoiler on landing. I will try to notice it next time I see a landing.

User currently offlineMhsieh From United States of America, joined Jul 2000, 331 posts, RR: 0
Reply 5, posted (9 years 11 months 2 weeks 6 days 19 hours ago) and read 715 times:

I think all A320/330/340 have droop ailerons with flao extended. I think it's standard. I have never seen a A320 without the aileron droop (UA, US, NW, AW, AC A320....to name a few, all have droop ailerons.

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