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Winglets on Icelandair B752's

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Winglets on Icelandair B752's

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Old 12th Mar 2008, 17:31
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Question Winglets on Icelandair B752's

Icelandair have quite large winglets on their Boeing B752's.

This reduces induced drag by about 2-4 % ?

Usually the wings have to be strengthened when winglets are added.

I don't see many other B757's with winglets.

Is the benefit really worth the effort ?

Last edited by Hermano Lobo; 12th Mar 2008 at 17:32. Reason: typo error
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Old 12th Mar 2008, 18:07
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The paper pushers seem to think so...
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Old 13th Mar 2008, 10:36
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Have a look at LAX heaps of AA 757s are modified
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Old 13th Mar 2008, 12:10
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Winglets add profiledrag and reduce induceddrag. There is allso the weight penalty. On short flights it is not worth the effort on long ones yes. The normally quoted figure is a 4 hour flight.

Finnair modified there 757īs
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Old 13th Mar 2008, 14:26
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Indeed, Finnair have modified their fleet - they fly over my house most days!!

I may be wrong, but I think I read that Finnair 757s operate the longest average sector length of the type.

It's 6+ hours to the Canaries from here (Helsinki).
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