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Boeing Raked Wingtips  
User currently offlineCancidas From Poland, joined Jul 2003, 4112 posts, RR: 10
Posted (10 years 9 months 2 hours ago) and read 3894 times:

while Aviation Partners is the company behind the blended winglets used by boeing and other manufacturers, who do the raked wingtips belong to, if not boeing?

"...cannot the kingdom of salvation take me home."
5 replies: All unread, jump to last
User currently offlineAeroWeanie From United States of America, joined Dec 2004, 1612 posts, RR: 51
Reply 1, posted (10 years 9 months 1 hour ago) and read 3886 times:
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Boeing holds the two patents on raked wing tips. They are US Patent 6,089,502 "Blunt-Leading-Edge Raked Wingtips" and US Patent 5,039,032 "High Taper Wing Tip Extension".

User currently offlineNZ1 From New Zealand, joined May 2004, 2319 posts, RR: 23
Reply 2, posted (10 years 8 months 2 weeks 4 days 12 hours ago) and read 3742 times:

What other aircraft besides the 764 and 772LR have raked wingtips, if any??


User currently offlineHAWK21M From India, joined Jan 2001, 31875 posts, RR: 54
Reply 3, posted (10 years 8 months 2 weeks 4 days 8 hours ago) and read 3723 times:

Quoting NZ1 (Reply 2):
What other aircraft besides the 764 and 772LR have raked wingtips, if any

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Add in the B773ER.

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User currently offlineHa763 From United States of America, joined Jan 2003, 3739 posts, RR: 5
Reply 4, posted (10 years 8 months 2 weeks 4 days ago) and read 3687 times:
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The 787-8 and -9 will also have raked wingtips, as would the 747Adv.

User currently offlineAmeriCam From United States of America, joined Dec 2002, 29 posts, RR: 1
Reply 5, posted (10 years 8 months 2 weeks 3 days 19 hours ago) and read 3653 times:

The idea of raked wingtips is associated with something called the Schuemann Planform. From my understanding, the Schuemann Planform is a set of aerodynmic priciples and rules regarding the design of a wing according to some guy named Schuemann. How strictly Boeing conforms to this planform I don't know, but Airbus has used ideas from it as well in the A310/330/340 (all aircraft who also utilize the raked wingtip. Google it, maybe you'll learn something.


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