Split Scimitar Winglets

"How much does a 3% fuel reduction equate to on....say.....a 1-26? "

Subtract 3% off to the current energy-bar/hr rate. It's basic math, just say'n...

On a very large Biz Jet costing lord knows how much, adding some BS stuff sometimes helps the sale, especially with promises that it will go further, better, at less cost Sir -- honest it will. But no guarantees of course.
When Southwest adds them to its 37 fleet you will know they actually work, not before.




I'm sure I'm way behind on this, but yesterday I flew on a new 737-800 with "Split Scimitar" winglets. One airline claimed 3% fuel savings. That seems optimistic to me, but every little bit helps. Is anybody working on adaptations for gliders?

SF

Saw them on an SWA airplane in Dallas last week.

SW was a launch customer...

On Thursday, January 15, 2015 at 1:57:00 PM UTC-5, wrote:
On a very large Biz Jet costing lord knows how much, adding some BS stuff sometimes helps the sale, especially with promises that it will go further, better, at less cost Sir -- honest it will. But no guarantees of course.
When Southwest adds them to its 37 fleet you will know they actually work, not before.




I'm sure I'm way behind on this, but yesterday I flew on a new 737-800 with "Split Scimitar" winglets. One airline claimed 3% fuel savings. That seems optimistic to me, but every little bit helps. Is anybody working on adaptations for gliders?

SF

On Thursday, January 15, 2015 at 2:50:57 PM UTC-5, Papa3 wrote:
SW was a launch customer...

http://aviationblog.dallasnews.com/2...airplane.html/

On Thursday, 15 January 2015 13:22:57 UTC-7, Papa3 wrote:
On Thursday, January 15, 2015 at 2:50:57 PM UTC-5, Papa3 wrote:
SW was a launch customer...

http://aviationblog.dallasnews.com/2...airplane.html/

A friend flies for SW and he says they make cross wind landings a bit trickier as it is harder to hold the crab angle. Plus no one want to the first one to damage the $1mil+ winglets by scraping them on the ground

I started the split scimitar discussion as a bit of a joke, but as noted, when SWA is on board, this is serious.

I think that adapting SS winglets to gliders will require "retractability" for takeoffs or landings or we will be spending a lot of time and money repairing the fancy things. I'm sure someone with extensive modeling time can come up with a battery-powered RC motor that could lower the bottom blade after release and raise it before landing. Now all we need is someone from API to allow access to their patented technology so we can shape the new tips appropriately. (I knew I should have kept my wind tunnel.)

SF (Only sort of tongue-in-cheek)

On Friday, January 16, 2015 at 7:10:17 AM UTC-5, wrote:
I started the split scimitar discussion as a bit of a joke, but as noted, when SWA is on board, this is serious.

I think that adapting SS winglets to gliders will require "retractability" for takeoffs or landings or we will be spending a lot of time and money repairing the fancy things. I'm sure someone with extensive modeling time can come up with a battery-powered RC motor that could lower the bottom blade after release and raise it before landing. Now all we need is someone from API to allow access to their patented technology so we can shape the new tips appropriately. (I knew I should have kept my wind tunnel.)

SF (Only sort of tongue-in-cheek)

Prior art: Peter Masak built and flew a set of similar split winglets over 20 years ago for his Nimbus.
Imagine- a landing gear position interlock that raises your hangie down things when the gear is down.
Before all this exotic and questionable "art" is applied to a glider, it would pay to have the best single element winglet. Many ships have winglets with significant improvement potential.
UH

....Or raise the lowers ala the Slingsby Vega tail wheel with a
mechanical linkage. Of course, it should be simple to make the linkage
connect automagically during assembly. Is it April 1 yet?


On 1/16/2015 6:42 AM, wrote:
On Friday, January 16, 2015 at 7:10:17 AM UTC-5, wrote:
I started the split scimitar discussion as a bit of a joke, but as noted, when SWA is on board, this is serious.

I think that adapting SS winglets to gliders will require "retractability" for takeoffs or landings or we will be spending a lot of time and money repairing the fancy things. I'm sure someone with extensive modeling time can come up with a battery-powered RC motor that could lower the bottom blade after release and raise it before landing. Now all we need is someone from API to allow access to their patented technology so we can shape the new tips appropriately. (I knew I should have kept my wind tunnel.)

SF (Only sort of tongue-in-cheek)
Prior art: Peter Masak built and flew a set of similar split winglets over 20 years ago for his Nimbus.
Imagine- a landing gear position interlock that raises your hangie down things when the gear is down.
Before all this exotic and questionable "art" is applied to a glider, it would pay to have the best single element winglet. Many ships have winglets with significant improvement potential.
UH

--
Dan Marotta

On Friday, January 16, 2015 at 12:45:58 PM UTC-5, Dan Marotta wrote:
...Or raise the lowers ala the Slingsby Vega tail wheel with a
mechanical linkage.* Of course, it should be simple to make the
linkage connect automagically during assembly.* Is it April 1 yet?


I thought it would make a good wing tip skid or with a small wheel fitted , a wing tip wheel, no?
Khanh



On 1/16/2015 6:42 AM,
wrote:



On Friday, January 16, 2015 at 7:10:17 AM UTC-5, wrote:


I started the split scimitar discussion as a bit of a joke, but as noted, when SWA is on board, this is serious.

I think that adapting SS winglets to gliders will require "retractability" for takeoffs or landings or we will be spending a lot of time and money repairing the fancy things. I'm sure someone with extensive modeling time can come up with a battery-powered RC motor that could lower the bottom blade after release and raise it before landing. Now all we need is someone from API to allow access to their patented technology so we can shape the new tips appropriately. (I knew I should have kept my wind tunnel.)

SF (Only sort of tongue-in-cheek)


Prior art: Peter Masak built and flew a set of similar split winglets over 20 years ago for his Nimbus.
Imagine- a landing gear position interlock that raises your hangie down things when the gear is down.
Before all this exotic and questionable "art" is applied to a glider, it would pay to have the best single element winglet. Many ships have winglets with significant improvement potential.
UH





--

Dan Marotta