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A350 XWB: Raked Wingtips?  
User currently offlineN328KF From United States of America, joined May 2004, 6482 posts, RR: 3
Posted (7 years 3 months 1 week 5 days 18 hours ago) and read 4258 times:

Check out this official XWB photo. Are those raked wingtips? Would such a thing be patentable?

Or are they winglets or non-planar extensions?


When they call the roll in the Senate, the Senators do not know whether to answer 'Present' or 'Not guilty.' T.Roosevelt
9 replies: All unread, jump to last
 
User currently offlineBlueSky1976 From Poland, joined Jul 2004, 1834 posts, RR: 4
Reply 1, posted (7 years 3 months 1 week 5 days 17 hours ago) and read 4213 times:

They are winglets.

*filler
*filler



All Hail Mighty Triple Seven, The MURDERER of the so-called "Queen"!!!!
User currently offlineDfwRevolution From United States of America, joined Jan 2010, 911 posts, RR: 51
Reply 2, posted (7 years 3 months 1 week 5 days 17 hours ago) and read 4191 times:

Quoting BlueSky1976 (Reply 1):
They are winglets.

Only in the sense that they are on the end of the wing. They are clearly not traditional winglets and appear very much so to be raked wingtips.

Quoting N328KF (Thread starter):
Are those raked wingtips? Would such a thing be patentable?

Compared to this, this, or this, I don't see how they aren't raked wingtips.

In terms of patent issues: intellectual copyright does not extend to "original" adaptations. All Airbus must do is demonstrate that their wingtip is sufficiently unique from a patented concept and they are in the clear. Boeing surely couldn't patent every wingtip design so I doubt Boeing has an issue to protest.


User currently offlineOldeuropean From Germany, joined May 2005, 2026 posts, RR: 4
Reply 3, posted (7 years 3 months 1 week 5 days 13 hours ago) and read 3961 times:

I doubt that raked wingtips are in general patentable by Boeing. For example on sailplanes they are used, for many years.

E.g.:
http://en.wikipedia.org/wiki/Rolladen-Schneider_LS4

Axel

[Edited 2007-01-05 12:11:31]


Wer wenig weiss muss vieles glauben
User currently offlineMIACCS From United States of America, joined Dec 2006, 8 posts, RR: 0
Reply 4, posted (7 years 3 months 1 week 5 days 9 hours ago) and read 3754 times:

As far as I can tell, this picture shows the regular winglets we have seen on previous A350XWB renderings. The reason why they appear different is due to the perspective of the image. If the picture were from the top or from the front/side, you would see a more regular winglet profile.

User currently offlineScbriml From United Kingdom, joined Jul 2003, 12026 posts, RR: 47
Reply 5, posted (7 years 3 months 1 week 5 days 8 hours ago) and read 3625 times:
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I think they are clearly winglets, just blended rather than the current A330/340 angled ones.


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User currently offlineShamrock350 From Ireland, joined Mar 2005, 6271 posts, RR: 14
Reply 6, posted (7 years 3 months 1 week 5 days 8 hours ago) and read 3597 times:

There was a video of the A350XWB at it's launch and it showed the aircraft on the ground with what was clearly winglets which curve upwards and backwards like raked winglets but not raked wingtips. I will look for the video on Airbus.com.

User currently offlineShamrock350 From Ireland, joined Mar 2005, 6271 posts, RR: 14
Reply 7, posted (7 years 3 months 1 week 5 days 5 hours ago) and read 3385 times:

Here's that video.


User currently offlineFridgmus From United States of America, joined Oct 2006, 1439 posts, RR: 11
Reply 8, posted (7 years 3 months 1 week 5 days 4 hours ago) and read 3363 times:
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Why are the wings so upswept?

Thanks,

Marc



The Lockheed Super Constellation, the REAL Queen of the Skies!
User currently offlineDfwRevolution From United States of America, joined Jan 2010, 911 posts, RR: 51
Reply 9, posted (7 years 3 months 1 week 5 days 4 hours ago) and read 3311 times:

The video helps add perspective. From the first picture, they simply look like flat (or only slightly swept) wingtips. The video makes them appear much more like the 787 swept wingtip or something closer to the AVBP winglet.

This latest generation of aircraft (787, A350, etc) is reflecting hybrid wing devices that no longer cleanly fit into the "winglets" or "wingtips" categories.


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