"double" Winglets On 737?

Moderators: richierich, ua900, PanAm_DC10, hOMSaR

Post Reply
 
a3xx900
Topic Author
Posts: 395
Joined: Sun Jan 18, 2004 8:03 pm

"double" Winglets On 737?

Mon Oct 19, 2015 1:19 pm

Hi everyone,
I just stumbled across a picture of a WestJet 737 with a "double" winglet (over in the General forum).

View Large View Medium
Click here for bigger photo!
Photo © Galen Burrows



I had never seen these winglets on 737 before - can anyone let me know since when they are in use, what airlines use them, etc?
Why is 10 afraid of 7? Because 7 8 9.
Top
 
AIRWALK
Posts: 241
Joined: Fri Jun 06, 2014 9:33 am

RE: "double" Winglets On 737?

Mon Oct 19, 2015 1:22 pm

They are Split Scimitar Winglets, came around some time in 2014.
I'm sure this thread will take off soon
Top
 
georgiaame
Posts: 1025
Joined: Sat Aug 13, 2005 7:55 am

RE: "double" Winglets On 737?

Mon Oct 19, 2015 2:02 pm

Standard issue on the next gen 737s The MAXs. Quite a few are popping up on already "wingletted" 737s currently in service. I'm surprised you weren't aware of them, as a reader of this website. They are really very pretty to look at - something very 21st Century.
"Trust, but verify!" An old Russian proverb, quoted often by a modern American hero
Top
 
a3xx900
Topic Author
Posts: 395
Joined: Sun Jan 18, 2004 8:03 pm

RE: "double" Winglets On 737?

Mon Oct 19, 2015 2:49 pm

Quoting georgiaame (Reply 2):
I'm surprised you weren't aware of them, as a reader of this website.

I can't believe it either  

I usually don't click on 737 pictures tbh and just look at "spectacular" pictures... And the bottom winglets are hard to spot if you don't know what you're looking for.
All pity excuses, I know...  
Why is 10 afraid of 7? Because 7 8 9.
Top
 
User avatar
ptrjong
Posts: 4123
Joined: Wed Mar 02, 2005 9:38 am

RE: "double" Winglets On 737?

Mon Oct 19, 2015 10:39 pm

Quoting georgiaame (Reply 2):

Very 14th centry.
https://en.wikipedia.org/wiki/Halberd

[Edited 2015-10-19 15:40:06]
The only difference between me and a madman is that I am not mad (Salvador Dali)
Top
 
User avatar
CALTECH
Posts: 3478
Joined: Thu May 17, 2007 4:21 am

RE: "double" Winglets On 737?

Mon Oct 19, 2015 11:12 pm

Quoting ptrjong (Reply 4):
Very 14th centry.
https://en.wikipedia.org/wiki/Halberd

Very 9th century.   

http://en.wikipedia.org/wiki/Scimitar
You are here.
Top
 
L-188
Posts: 29881
Joined: Wed Jul 07, 1999 11:27 am

RE: "double" Winglets On 737?

Tue Oct 20, 2015 4:00 am

Alaska has a few birds with that winglet too.
OBAMA-WORST PRESIDENT EVER....Even SKOORB would be better.
Top
 
User avatar
green12324
Posts: 90
Joined: Wed Feb 25, 2015 8:49 am

RE: "double" Winglets On 737?

Tue Oct 20, 2015 9:49 am

United has a lot of 737s equipped with these.
The views expressed in this post are my own. They have not
been reviewed or approved by my employer.
Top
 
ZaphodHarkonnen
Posts: 1065
Joined: Sun Jan 04, 2015 10:20 am

RE: "double" Winglets On 737?

Wed Oct 21, 2015 10:17 am

I believe these are different to the winglets that will appear on the MAX. These are an aftermarket option offered by an independent company. The MAX ones are also called something else as the name scimitar is a trademark.

http://www.aviationpartnersboeing.com/products_737_800SSW.php

compared to

http://www.boeing.com/commercial/737...hts/max-efficiency/max-at-winglet/
Top
 
777X
Posts: 854
Joined: Fri Dec 19, 2014 12:44 am

RE: "double" Winglets On 737?

Wed Oct 21, 2015 2:42 pm

Split Scimitar Winglet is made by APB.
Advanced Technology Winglet (ATW) is the Boeing version that will be on the MAX.
Top
 
LH707330
Posts: 2418
Joined: Fri Jun 15, 2012 11:27 pm

RE: "double" Winglets On 737?

Wed Oct 21, 2015 5:51 pm

They saw the tortilla chips on the A320 and wanted to copy them 
Quoting georgiaame (Reply 2):
Standard issue on the next gen 737s The MAXs. Quite a few are popping up on already "wingletted" 737s currently in service. I'm surprised you weren't aware of them, as a reader of this website. They are really very pretty to look at - something very 21st Century.

Not quite, the scimitars are an aftermarket refresh where they take the NG winglets, add the new tips and underfin, and reinstall it.
Top
 
dynamicsguy
Posts: 442
Joined: Tue Jul 08, 2008 9:24 am

RE: "double" Winglets On 737?

Thu Oct 22, 2015 9:56 am

Quoting ZaphodHarkonnen (Reply 8):
The MAX ones are also called something else as the name scimitar is a trademark.

"Scimitar" refers to the shape of the tip. The MAX wingtips don't have this shape so there is no reason why they would be called scimitar.
Top
 
ZaphodHarkonnen
Posts: 1065
Joined: Sun Jan 04, 2015 10:20 am

RE: "double" Winglets On 737?

Thu Oct 22, 2015 10:11 am

Quoting dynamicsguy (Reply 11):
"Scimitar" refers to the shape of the tip. The MAX wingtips don't have this shape so there is no reason why they would be called scimitar.

Scimitar in this case is also a trademark so no one else who's making winglets can use it. http://tmsearch.uspto.gov/bin/showfield?f=doc&state=4808:z4742r.2.4
Top
 
User avatar
DocLightning
Posts: 22037
Joined: Wed Nov 16, 2005 8:51 am

RE: "double" Winglets On 737?

Thu Oct 22, 2015 4:56 pm

Quoting ZaphodHarkonnen (Reply 8):

I believe these are different to the winglets that will appear on the MAX. These are an aftermarket option offered by an independent company. The MAX ones are also called something else as the name scimitar is a trademark.

1) The winglets are called Split Scimitars (by Aviation Partners Boeing) as installed on the 73G family. The 73M family will have a Boeing product called the Advanced Technology Winglet (ATW) as standard equipment. Not sure if Boeing plans to certify a nonwingletted version.

2) The upper wing-like element of both winglets operates, of course, as a standard winglet and reduces span-wise flow and moves vorticity due to induced drag aftward on the wing. The downward wing-like element does not extend outboard of the upward wing-like element while the aircraft is on the ground, but as the aircraft rotates to take flight, the wing flexes upward and that rotates the wingtip inward. This inward rotation of the wingtip causes the lower wing-like element to extend further outward, providing an increase in overall span.
-Doc Lightning-

"The sky calls to us. If we do not destroy ourselves, we will one day venture to the stars."
-Carl Sagan
Top
 
User avatar
HAWK21M
Posts: 30114
Joined: Fri Jan 05, 2001 10:05 pm

RE: "double" Winglets On 737?

Sat Oct 24, 2015 9:24 am

For more Information in simple language on the type winglet.

http://www.b737.org.uk/winglets.htm#splitscimitar
I may not win often, but I damn well never lose!!! ;)
Top
Post Reply

Who is online

Users browsing this forum: meecrob, StereoTechque, yblaser and 26 guests

Popular Searches On Airliners.net

Top Photos of Last:   24 Hours  •  48 Hours  •  7 Days  •  30 Days  •  180 Days  •  365 Days  •  All Time

Military Aircraft Every type from fighters to helicopters from air forces around the globe

Classic Airliners Props and jets from the good old days

Flight Decks Views from inside the cockpit

Aircraft Cabins Passenger cabin shots showing seat arrangements as well as cargo aircraft interior

Cargo Aircraft Pictures of great freighter aircraft

Government Aircraft Aircraft flying government officials

Helicopters Our large helicopter section. Both military and civil versions

Blimps / Airships Everything from the Goodyear blimp to the Zeppelin

Night Photos Beautiful shots taken while the sun is below the horizon

Accidents Accident, incident and crash related photos

Air to Air Photos taken by airborne photographers of airborne aircraft

Special Paint Schemes Aircraft painted in beautiful and original liveries

Airport Overviews Airport overviews from the air or ground

Tails and Winglets Tail and Winglet closeups with beautiful airline logos