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A320 Different Winglets?  
User currently offlinewardialer From United States of America, joined Sep 2001, 1182 posts, RR: 0
Posted (11 months 2 weeks 3 days 2 hours ago) and read 6616 times:

I just stumbled onto this picture were the A320 winglets are modified.
Never saw this before until now.

Looks like the same design in the winglets as the B737-800.

http://www.planespotters.net/Aviation_Photos/photo.show?id=399930

Are these new winglets designed to resist turbulence and conserve more fuel?
Look odd on an A320.

17 replies: All unread, jump to last
 
User currently offlineStarlionblue From Greenland, joined Feb 2004, 17002 posts, RR: 67
Reply 1, posted (11 months 2 weeks 3 days 1 hour ago) and read 6590 times:

Them be the Sharklets. Nothing to do with turbulence methinks, but indeed fuel savings. More or less standard on new build 320 family aircraft from now on.

http://www.airbus.com/newsevents/new...ncy-to-operators-around-the-world/

http://www.lufthansagroup.com/uploads/tx_templavoila/1_03.jpg



"There are no stupid questions, but there are a lot of inquisitive idiots."
User currently online817Dreamliiner From Montserrat, joined Jul 2008, 2211 posts, RR: 1
Reply 2, posted (11 months 2 weeks 3 days ago) and read 6560 times:

Quoting wardialer (Thread starter):
Never saw this before until now.

Really?? where have you been all this time??   They've been around for at least a year now... They're called Sharklets.

Quoting wardialer (Thread starter):
Look odd on an A320.

I beg to differ, they make it look a whole lot better in my opinion



Reality be Rent. Synapse, break! Vanishment, This World!
User currently offlinewardialer From United States of America, joined Sep 2001, 1182 posts, RR: 0
Reply 3, posted (11 months 2 weeks 2 days 22 hours ago) and read 6484 times:

Yes really!!!! I NEVER saw these before on an A320    

But I like the old standard winglets though. These look kind of a bit strange for an A320. On the B737s they look fine.

[Edited 2013-08-18 10:49:01]

User currently offlineaeroweanie From United States of America, joined Dec 2004, 1607 posts, RR: 52
Reply 4, posted (11 months 2 weeks 2 days 22 hours ago) and read 6467 times:
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There have been four different winglet designs flown on the A320, excluding the tip fences. In the first test program, two winglets, designed by Airbus and Winglet Technology respectively, were flown:

View Large View Medium
Click here for bigger photo!

Photo © Torben Guse
View Large View Medium
Click here for bigger photo!

Photo © Eurospot



Later winglets designed by API were flown:

View Large View Medium
Click here for bigger photo!

Photo © Terence Li



Finally, winglets designed by Airbus were flown and incorporated into the assembly line:

View Large View Medium
Click here for bigger photo!

Photo © OlivierG



The winglets are all designed to reduce aircraft's fuel burn.

[Edited 2013-08-18 11:15:32]

User currently offlineFabo From Slovakia, joined Aug 2005, 1219 posts, RR: 1
Reply 5, posted (11 months 2 weeks 2 days 2 hours ago) and read 6226 times:

Add to that fences, and the very first 320s wihtout wingtip devices, and we have 6 different configurations, maybe more. Nice  


The light at the end of tunnel turn out to be a lighted sing saying NO EXIT
User currently offlineHAWK21M From India, joined Jan 2001, 31667 posts, RR: 56
Reply 6, posted (11 months 2 weeks 2 hours ago) and read 5966 times:

Quoting Fabo (Reply 5):
and we have 6 different configurations, maybe more.

Can you list the same.....



Think of the brighter side!
User currently offlineFabo From Slovakia, joined Aug 2005, 1219 posts, RR: 1
Reply 7, posted (11 months 2 weeks 2 hours ago) and read 5959 times:

Quoting HAWK21M (Reply 6):
Can you list the same.....

We have the 4 aforementioned winglets, that is

1. Test winglets by Airbus
2. Test winglets by Winglets Technology
3. Test winglets by API
4. Sharklets by Airbus

then there is

5. Wingtip fences as common on most A320s

and very early production A320s

6. original wing without wingtip devices as shown here


View Large View Medium
Click here for bigger photo!

Photo © N94504



Granted, these only were on the very first A320s and it seems fences were used since 1990 at the latest.



The light at the end of tunnel turn out to be a lighted sing saying NO EXIT
User currently offlineRandWKOP From Ireland, joined May 2012, 43 posts, RR: 0
Reply 8, posted (11 months 1 week 2 days 19 hours ago) and read 5592 times:

How has the addition of sharklets affected the 32X efficiency versus the 737NG?

[Edited 2013-08-25 13:51:38]

User currently offlineHAWK21M From India, joined Jan 2001, 31667 posts, RR: 56
Reply 9, posted (11 months 5 days 20 hours ago) and read 5177 times:

Quoting RandWKOP (Reply 8):
How has the addition of sharklets affected the 32X efficiency versus the 737NG?

Depends who you talk to.....both A and B have their explanations......  



Think of the brighter side!
User currently online7BOEING7 From United States of America, joined Oct 2012, 1510 posts, RR: 8
Reply 10, posted (11 months 5 days 12 hours ago) and read 5106 times:

Gee the AB winglets look just like the API winglets -- is there any difference beside who manufactured them??? I guess time, I mean the courts will tell.

User currently offlineFabo From Slovakia, joined Aug 2005, 1219 posts, RR: 1
Reply 11, posted (9 months 2 weeks 4 days 3 hours ago) and read 3456 times:

Quoting Fabo (Reply 7):
then there is

5. Wingtip fences as common on most A320s

Apparently, these were modified along the years... so now I am looking at no less than 8 different wingtips through A320 production  
Interesting thing.



The light at the end of tunnel turn out to be a lighted sing saying NO EXIT
User currently offlineferpe From France, joined Nov 2010, 2800 posts, RR: 59
Reply 12, posted (9 months 2 weeks 3 days 20 hours ago) and read 3330 times:

Quoting 7BOEING7 (Reply 10):
Gee the AB winglets look just like the API winglets -- is there any difference beside who manufactured them??? I guess time, I mean the courts will tell.

Having looked at the API patent and the Airbus sharklet patent their claims are in rather different domains. API is all in the non transonic domain focusing on the absence of disturbing vortices from the wing to winglet transit area, the Airbus patent is focused on the transonic design and how it fits into the transonic design of the wing and avoids additional wave drag.

It might therefore very well be that their profiles are quite different even when their planforms seems very similar. As they shall save fuel during cruise the important part is that they don't mess up the transonic design of the outer wing, the planform is important for the low speed behavior, especially how they behave when the wing stalls (they have no slats and must therefore rely on vortice based flow at wing stall alfa angles).

[Edited 2013-10-16 12:19:08]


Non French in France
User currently offlineHuffTheWeevil From United States of America, joined Oct 2013, 263 posts, RR: 1
Reply 13, posted (9 months 2 weeks 14 hours ago) and read 2942 times:

Quoting ferpe (Reply 12):
It might therefore very well be that their profiles are quite different even when their planforms seems very similar. As they shall save fuel during cruise the important part is that they don't mess up the transonic design of the outer wing, the planform is important for the low speed behavior, especially how they behave when the wing stalls (they have no slats and must therefore rely on vortice based flow at wing stall alfa angles).

I find it interesting that there even needs to be differences noted in the two designs when it comes to patents and names. B and A don't each have their own names for wings, even if they're shapes and forms differ a bit. So why for winglets and sharklets? Surely most of it has to do with marketing; I mean look at that silly "shark" livery on the A320.

Me...I'll always call them all winglets. Except the "fences" on the A32Xs...them I just call ugly.  



Huff
User currently offlineViscount724 From Switzerland, joined Oct 2006, 24906 posts, RR: 22
Reply 14, posted (9 months 1 week 6 days 17 hours ago) and read 2730 times:

Quoting Fabo (Reply 7):
Granted, these only were on the very first A320s and it seems fences were used since 1990 at the latest.

The A320-100 (only 21 built) did not have the fences.


User currently offlinehb88 From United Kingdom, joined Sep 2005, 814 posts, RR: 31
Reply 15, posted (9 months 1 week 2 days 10 hours ago) and read 2356 times:

Quoting HuffTheWeevil (Reply 13):
I find it interesting that there even needs to be differences noted in the two designs when it comes to patents and names. B and A don't each have their own names for wings, even if they're shapes and forms differ a bit. So why for winglets and sharklets? Surely most of it has to do with marketing; I mean look at that silly "shark" livery on the A320.

Have you been living in a cave?   of course it's marketing: "dreamliner" "jumo-jet", even Aviation Partners try to claim sort sort of rights to the expression "blended winglet". As for the silly shark livery, Airbus sometimes pimps up the occasional aircraft with one-off livery. FOr test aircraft they are flying billboards to a degree. Although I think it's a little corny, it's a break from white livery. Also, the sharklet brand works - it differentiates the Airbus product in the marketplace (except of course on a.net where the armchair engineers reign supreme).

Anyway, google Airbus/sharklets/legal/court/API and you'll find the whole story.


User currently offlineCPH-R From Denmark, joined May 2001, 5981 posts, RR: 3
Reply 16, posted (9 months 1 week 1 day 15 hours ago) and read 2207 times:

Quoting Viscount724 (Reply 14):
The A320-100 (only 21 built) did not have the fences.

Aren't they're all out of service by now these days? I know BA operated theirs until fairly recently, but I'm not sure how long the Air Inter (and later, AF) birds were operating.


User currently offlinePolot From United States of America, joined Jul 2011, 2129 posts, RR: 1
Reply 17, posted (9 months 1 week 20 hours ago) and read 2079 times:

Quoting CPH-R (Reply 16):
Aren't they're all out of service by now these days? I know BA operated theirs until fairly recently, but I'm not sure how long the Air Inter (and later, AF) birds were operating.

Yes, they are all out of service. It should be noted that out of the 21 built, the first A320-100 is Airbus's testbed that they converted to A320-200 standards, although I believe that is going to be retired soonish.


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