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BESTGLIDESPEED
10th Feb 2008, 22:21
Anybody out there to explain the advantages and working of the raked-type wingtips ?

THX

FCS Explorer
10th Feb 2008, 23:10
http://en.wikipedia.org/wiki/Raked_wingtips#Raked_wingtip

...In testing by Boeing and NASA, raked wingtips have been shown to reduce drag by as much as 5.5%, as opposed to improvements of 3.5% to 4.5% from conventional winglets...

BESTGLIDESPEED
11th Feb 2008, 10:33
Thanks FCS Explorer.


I canīt seem to appreciate in the picture... does it have any amount of upward-degree ? or is it ALL just an increase of aspect ratio ?



THX