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Wingtip Fences On Airbuses  
User currently offlineTSL1011 From Canada, joined Jan 2004, 71 posts, RR: 0
Posted (12 years 3 months 3 weeks 4 days 21 hours ago) and read 2584 times:

Hi All!
I've just read three threads on winglets, and think I have a better understanding of how they work. I never realized that they actually contributed a slight thrust - I always thought they just reduced drag by reducing the wingtip vortices. Learning all the time!
However, what about the small vertical fences on the tips of A310 and A320 family aircraft wings? I wouldn't think these create lift, so do they do anything other than break up the vortices? If they don't provide lift (and would therefore seem to be less advanced than later winglets on the A330/340 or B747-400) why does Airbus seem to be going back to fences on the A380 (according to most illustrations I've seen)?

1 replies: All unread, jump to last
User currently offlineQantasA332 From Australia, joined Dec 2003, 1500 posts, RR: 22
Reply 1, posted (12 years 3 months 3 weeks 4 days 21 hours ago) and read 2600 times:

I'm not sure about fences, but I think that they both reduce induced drag in the same fasion as normal winglets and help to partially stop wingtip vortices from reaching the upper surface of the wing, and they generally improve airflow over the tip...


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