Purely Luck
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Registered: 8-11-2012
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Very cool video about decreasing wing stall speed
Hey guys, as a flying nut I found this video and found it very interesting.
https://www.youtube.com/watch?v=SXwVyxorvno
Apparently you can improve the STOL properties ( https://en.wikipedia.org/wiki/STOL) of a wing by installing vortex generators on the leading edge. https://en.wikipedia.org/wiki/Vortex_generator
Anyone think that this could have an application in kiting? I wonder if something like this could improve the upwind capability of some kites by
allowing them to fly closer to their stall angle at the edge of the wind window.
HQ Symphony 1.7 | Rush 2.5m | Apex II 5m | Taboo 5.5m | Kahoona 9.5m & 11.5m | NPW 9 15m
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Purely Luck
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Posts: 107
Registered: 8-11-2012
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In the video they saw a reduction in stall speed from 60 to 45 knots of the aircraft. This is assuming that this experiment was valid and not a giant
scam or marketing gimmick.
HQ Symphony 1.7 | Rush 2.5m | Apex II 5m | Taboo 5.5m | Kahoona 9.5m & 11.5m | NPW 9 15m
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Scudley
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Are the deformations of the leading edge at the struts acting as vortex generators in some kites? By mistake or design? These deformations would
have to be much smaller than aircraft VGs as the wing speed is so much lower (boundary layer thickness is a function of amongst other things fluid
velocity).
S
Is it possible to design for strength, if the designer doesn't really understand what strength is?
8m speed wings.
Ozone Samurai 3m
Sky Country Reflex 2, 3, 4, 5, 6, 7, 10m new 6m!
Sky Country NaSCa 2 11m
Sky Country Alasca 10m - sold
Rhombus Firebee 3m (ret).
Libre Vampir Race Pro 2.6m
Jojo Rage 8m
www.skycountry.ca |
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rectifier
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Registered: 21-4-2012
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I would think the relatively floppy leading edge of a soft wing would serve the purpose of generating adequate turbulence for a kite. No matter how
smooth it looks, a kite's leading edge is much rougher and more chaotic in behaviour than an aluminum aircraft wing - that's my take on it
Homebuilt: 1m NPW9b, 2.6m NPW21, 7m NPW21 UDS
HQ: 3.2m Crossfire, 5m + 7m Apex 3
6m Ozone Explore v2
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Bladerunner
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I think Flysurfers " Jet Flaps " partly address this ? Cleaning up the vortex above the trailing edge reducing stall. But I am no aeronautical
engineer !
Kites: 2.5m Profoil , Quadrifoil XL kitesurfer, NPW 5 Danger.
Flexifoil: 1.7m Sting, 4.9m Blade 3, 9m Blade 2.
Flysurfer : 19m Speed 2 SA, 7m Pulse
Peter Lynn :18m Phantom, 15m Synergy, 10m Synergy, 1200 Farc, 460 Sarc, 130 Tarc, 5m Peel, 4.2m , 6.4, 8.5 C-Quads, 3.5 LS2 single skin.
Rides: Flexi / P.L. Frankin'Buggy , Shaped + straight skiis, sand skis, Coyote blades. Core 95 ATB. RKB R2 ATB .
Ken (K2)
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Michael Gaylan
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Mood: bye
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I am wondering if a flux capacitor attached to the vortex generator on the leading edge will increase stall performance as well...
LOL
If you've received this message I am no longer a member and I will not be reading any U2U's or posts.
Enjoy your day!
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