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Author: Subject: TubeGlider (Ozone Zephyr)
herc


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smile.gif posted on 9-1-2014 at 06:11 AM
TubeGlider (Ozone Zephyr)


some experimental stuff..
using a tubekite in "paraglider mode".
full AoA control via brakes - it is very easy to control pitch.
downsinde: strong roll moment - hard to keep it overhead.
very sensitive to weight-shift trough harness.
the ozone zephyr can be kept floating in as little as 3-5 knots.

(warning: this is just to show that tubekites *might* be an interesting option for paragliding in very smooth coastal winds. i would strongly discourage to try similar things in the mountains / gusty inland wind with intermixed thermals)

some short gliding trials:


groundhandling:







Kites:
Tubes: Ozone Zephyr 17 * Naish Helix 2009 10.5 qm * Cabrinha Access 2003 9qm * Wipika Hydro 2001 9qm *
Arcs: PL Scorpion 13, 16 qm; PL Synergy 10 qm
open cell: PL Twister I 7.7 * PKD Buster II 3qm
Paragliders: Gradient Bright Classic (with check) * Swing Mistral 1 (groundhandling) *Advance Alpha 3 (groundhandling)
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elnica


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[*] posted on 9-1-2014 at 08:12 PM


What happens when a tube loses pressure?



Too many kites, boards, and etceteras.
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herc


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[*] posted on 9-2-2014 at 02:19 AM


of course, if that idea ever might turn into a "commercial" product, there should be a redundant setup with two tubes or several disconnected tube compartements along the leading edge.
i would guess that a slow pressure drop is not that worse, it might give you enough time to land.

1. struts are not important for the profile - hence, if a bladder in the struts leaks, it doesnt matter.
2. leading edge bladder leakage might be worse, because span-wise forces established by the tube are probably important .
here, the idea could be to have the leading edge splittet into maybe 5 compartements in such a way, that if one of these bladders leaks the whole thing can still fly reasonably to make a proper landing.

at the end, you could ask the same question to a hang glider pilot: what happens if your leading edge aluminum-pipe breaks during flight ? should never happen (do a proper pre-flight check!) !!




Kites:
Tubes: Ozone Zephyr 17 * Naish Helix 2009 10.5 qm * Cabrinha Access 2003 9qm * Wipika Hydro 2001 9qm *
Arcs: PL Scorpion 13, 16 qm; PL Synergy 10 qm
open cell: PL Twister I 7.7 * PKD Buster II 3qm
Paragliders: Gradient Bright Classic (with check) * Swing Mistral 1 (groundhandling) *Advance Alpha 3 (groundhandling)
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B-Roc


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[*] posted on 9-2-2014 at 06:23 AM


Its kind of already been done before. Different circumstances for sure but better results. Pretty sure there are some vids of a modified Flysurfer floating around too where a guy starts with his board on a sand dune and floats / rides down to the water where he surfs, paraglides away.





Depower Quiver: 14m Gin Eskimo, 10m Gin Eskimo III, 6m Gin Yeti, 4.5m Gin Yeti (custom bridle and mixer)
Fixed Bridle Quiver: MAC Bego 400, JOJO ET Instinct 2.5 & 5.5, Lil Devil 1.5, Sting 1.2
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indigo_wolf


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[*] posted on 9-2-2014 at 11:49 AM


Quote: Originally posted by B-Roc  
Pretty sure there are some vids of a modified Flysurfer floating around too where a guy starts with his board on a sand dune and floats / rides down to the water where he surfs, paraglides away.




ATB,
Sam




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PHREERIDER


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[*] posted on 9-2-2014 at 01:53 PM


what about the vid of a guy who jumped out of hot air ballon with FS , can't find it.





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ssayre




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[*] posted on 9-2-2014 at 02:06 PM


Here's an fs gliding

https://www.youtube.com/watch?v=3JWi78hk8oQ

And hill gliding with lei

https://vimeo.com/100782349
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erratic winds


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[*] posted on 9-2-2014 at 08:46 PM


Phree=

FS balloon jump V1 with Psycho 2

https://www.youtube.com/watch?v=0L-DEJvRAuU





FS paraglider jump v2 with speed

https://www.youtube.com/watch?v=vpp9TO2nXyY







Tide? What's a tide? Man, it's 1000 miles to any ocean.
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PHREERIDER


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[*] posted on 9-3-2014 at 05:21 AM


yep ..that was sick. FS no joke folks! thanks for the dig EW!



TEAM RIDER for Coastal Wind Sports

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herc


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[*] posted on 9-3-2014 at 05:55 AM


yes, i know all of these videos. the (small) difference is the line lengths ! i use a modified bridle , just 5 meters from person to leading edge. that way its more like the setup of a paraglider and close to what sylvain does with his flysurver: that very cool cross-over dune-flying+sandboarding+kiteboarding.

i just wanted to know if a tubekite works in "forward-glide" aka paragliding mode with short lines + modified bridle.

sadly, the day i made these mini-glides on the cliff at coast of denmark, the wind was weak and not perpendicular to the front. otherwise i *might* have tried a short soaring session. unfortunately i am there only once a year, so further testing is on ice.

here, thats the coolest and most inspirational video from sylvain:

https://www.youtube.com/watch?v=PSsKAzyKzhc





Kites:
Tubes: Ozone Zephyr 17 * Naish Helix 2009 10.5 qm * Cabrinha Access 2003 9qm * Wipika Hydro 2001 9qm *
Arcs: PL Scorpion 13, 16 qm; PL Synergy 10 qm
open cell: PL Twister I 7.7 * PKD Buster II 3qm
Paragliders: Gradient Bright Classic (with check) * Swing Mistral 1 (groundhandling) *Advance Alpha 3 (groundhandling)
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herc


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[*] posted on 9-3-2014 at 05:58 AM


p.s. behaviour of flysurfer kites with closed cells can get dangerous in turbulent wind situations. if one side of the gldier collapses, it cannot deflate, forming a solid wall inducing a strong momentum, immediately putting the flysurfer into a spiral dive with strong g-forces. therefore, sylvain only does this in those fantastic, smooth coastal winds.

with a tubekite, a collapse is less likely, even in turbulent air. yet, it is completely unknown, how a tubekite / "tubeglider" behaves in strong turbulent air. thats what i would like to know (but certainly never will test by myself)..




Kites:
Tubes: Ozone Zephyr 17 * Naish Helix 2009 10.5 qm * Cabrinha Access 2003 9qm * Wipika Hydro 2001 9qm *
Arcs: PL Scorpion 13, 16 qm; PL Synergy 10 qm
open cell: PL Twister I 7.7 * PKD Buster II 3qm
Paragliders: Gradient Bright Classic (with check) * Swing Mistral 1 (groundhandling) *Advance Alpha 3 (groundhandling)
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PHREERIDER


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[*] posted on 9-3-2014 at 06:34 AM


likely to cross wind gradients if really high, definitely sketchy. tubes would certainly work but high load distribution would worry me. the canopy just split open



TEAM RIDER for Coastal Wind Sports

http://www.coastalwindsports.com/

VIDEOS for your entertainment while you wait.

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[*] posted on 9-3-2014 at 03:27 PM


I don't know much about gliding but wouldn't you have had more success trying to ride that ridge above the dunes?

I never get tired of watching Alex gliding with that best kite. Even love the music.




Kites: 2.5m Profoil , 4.9m QuadrifoilXL kitesurfer, 9m Flexi Blade II, NPW 5 Danger.
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

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