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.
MIACCS From United States of America, joined Dec 2006, 8 posts, RR: 0
Reply 4, posted (8 years 2 months 3 weeks 1 day 5 hours ago) and read 4274 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.
Shamrock350 From Ireland, joined Mar 2005, 6389 posts, RR: 14
Reply 6, posted (8 years 2 months 3 weeks 1 day 4 hours ago) and read 4117 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.
DfwRevolution From United States of America, joined Jan 2010, 1033 posts, RR: 51
Reply 9, posted (8 years 2 months 3 weeks 1 day 1 hour ago) and read 3831 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.