WHISTLING REAR WING?

Hi,
So I have a aircraft alu rear wing that does its job very well, but it whistles.
I bet this does not affect its work, BUT sure is nice with alu caraf copy that makes no noise BUT does not perform as well.
I will post photos of complete foil board soon.
Any ideas on why a rear wing whistles?
I must say, I am so blown away at how much fun it is to progress in this sport, getting on h2o jibes, and airborn toeside, fakey coming along!
Thanx David

Hey David,

Remember the foil profile you asked me about for your T bar ? This one that is shrinking both sides than flat... It is such a profile that Fréjus Boyz have used for they T-bar AND front and rear wings !

I must tell you that doing "flying" turns then holding toeside for awhile, then put board on h2o and change foot placement, HOW MUCH FUN CAN ONE HAVE?
But I now have ( if possible) more respect for god Marc Blonds talent to jibe strapless, while flying even!
Sure is better to ride in low steady marine than strong gusty tram!
So are you talking about worldofkrass profile s1012?
I chose this profile for my 1.1mm thick solid laminated strut as it "FIT" my rectanglular strut stock best (meaning I leave the most material possible!)
This is MOST INTERESTING as I will build more wings and struts!
A sym front and rear wing profile, please confirm!
Thanx
David
Nice picture by the way, although I like the one before better, where you are turning!
So North has a new low wind kite.
We will have one to test soon.
Is 18 m2 and purpose built for lightness, both construction and wind of course!
We will let you know.

Yes this kind of profile (I think)
The picture is the one with the admin account. I shoudl have used this account. It s a mistake.
We tested the North Dino here a few times.
It flies real early and flies on the very edhe of the window. UL manufacturing.
Zeeko may propose an UL kite too. I used their 17 prototype in UL conditions in Frejus. Was a few times the only one sailing...

Laurent,
Thanx for dino info but you left out how much pulling power it generated as say compared to flysurfer 19, 21 m2 or zeeko?
If you have flown these and could comment would be nice.
Is the big ul zeeko bridaled making it flat a little? AND RELAUNCH?
I find that with my north vegas 14m2 2006 40m lines that I need 8 knots to stay up wind.
And of course we always want to ride in less!
We had talked of PETER LYNN C QUADs and Kane Hartill, do you have contact info for him?
David, looking for afternoon thermal to go teach 2 friends this FANTASTIC sport!

comparing all those kites is not that easy. The 21 Flysurfer is foiling before the 18 Dyno. This is for sure. The 17 Zeeko and the Dyno, I don't know. They are very different kites. Zeek has 3 struts and medium ratio when Dyno has 8 struts and HAR. They behave differently when flying. I guess they start in the same wind. Approximatively...

I spoke with Nicolas about the ERA relaunching of the 17 that he's improving today. This kite is still a prototype. Not available. Price will be way lower than the North for sure ! And lower then the Flsyurfer too.

No contact with Kane. But I would not myself foil with a non relauching kite. When the wind drops I can land my kite on the water, sit on my board and wait that the wind rises again and go back to the beach. With a C-Quad, you are stuck in this case.