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Ozone Edge wing tip collapse

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Created by techtonic > 9 months ago, 2 Jun 2015
techtonic
WA, 72 posts
2 Jun 2015 10:10PM
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Well finally got out on my newly acquired edges. Overall, loved them. Crappy gusty, wind and ocean chop conditions to be testing in,
But still managed to put a fresh smile on the face. The extra speed felt, compared to Rebels was a new buzz for sure.
Anyway, both the 17 and the 13 suffered some wing tip collapse, varying amounts through the sesh. Relanded and pumped a bit more air in both, and changed bar pressure from light to mid. The folding reduced for the rest of the sesh. Besides losing 10kg and getting used to a new profile, is there any other tips for reducing tip fold?
Bar was not oversheeted, as discussed in my last post, and not convinced bar pressure setting would make a difference.
Either way, stoked with the new ride, also found it less fatiguing then past sessions, no idea why, but was very comfy for my 40 yr old bones.
Happy winds all

wishy
WA, 1501 posts
2 Jun 2015 10:18PM
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The harder the edges are pumped up the better they work. I'll leave it up to you to decide how much is too much.

I usually go until my oldish pump can hardly do any more pressure.

This is indeed a great kite for old bones. Very soft landings are easily achieved, even if you go huge.

techtonic
WA, 72 posts
2 Jun 2015 10:45PM
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Yeh, I use a gauge, but only as a guide, due to the effect of one way valves on readings.
I also recall Turtle Hunter explaining to me once Ozones need pumping up till the handles are starting to flex. Quoting at risk there.
Im a drummer so I tend to use the flicking the LE and listen to the note. (About a snare drum pitch after the reinflate.
Any thoughts on bar pressure setting?
As always thanks in advance

Chris6791
WA, 3271 posts
2 Jun 2015 10:59PM
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Yup, needs more air. The closer you are willing to take them to bursting the better they fly.

kiteboy dave
QLD, 6525 posts
3 Jun 2015 9:16AM
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Also little tip with the bigger sizes - pump hard then do your lines. Then come back and top up - it takes a while for LE pressure to properly equalise into struts, so you can think LE is rock hard and come back 5-10 mins later and it's less hard.

oldbones
QLD, 114 posts
3 Jun 2015 10:49AM
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Pump hard and bar pressure on heavy will do the trick.

Chris6791
WA, 3271 posts
3 Jun 2015 9:06AM
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Unless they've changed the inflate nozzle make sure it is 100% free of sand, especially under the black o-ring seal thingy. Good chance it will bleed air if it's not spotless.

bigtone667
NSW, 1543 posts
3 Jun 2015 11:15AM
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I found I had the problem with a 19 and 17 and it was always related to lack of pressure. Whenever I attempted to boost, I would collapse the wing tips.

I also add a litle spit round the O-Ring to improve the seal. And make sure clamp your struts.


MaxVMGRacing
WA, 120 posts
3 Jun 2015 9:38AM
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Its only really when you use/borrow and electric pump with an electronic pressure gauge, that you realise just how hard you need to pump the kites to get them to recommended pressure.
A good test while hand pumping, grab the bridle or wingtip steering leader line, and try bend the wing tip inward, it shouldn't bend easily.

dusta
WA, 2940 posts
3 Jun 2015 1:12PM
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i pump all my edges from 7 to 19 to 9 psi and always run med settings on those that have 3 settings and heavy setting on the 19 . 100kegs

no wingtip folding

archie00
NSW, 138 posts
3 Jun 2015 5:52PM
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I used to run Rebels and then changed Edges. The rebels comparatively have a lot of bar pressure and feed back. Edges - just like to fly. Will guarantee that you were pulling on the bar more than the edges wanted - purely because you have recently been a rebel rider. I certainly used to. Consciously push the bar out a little more next time out and see if makes a difference. You just don't get the same feedback and bar pressure when using edges.

techtonic
WA, 72 posts
3 Jun 2015 9:52PM
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Excelent ideas!!
Kiteboy: Will do this in future.
Bigtone: Will clamp from now on...and spit on the ring!
Everyone else: thanks a heap. under inflated and bar possilbly too light. Will try the tip bend for test before launching MAX V
Archie: Vaild point mate. I felt I had this experience and came to mostly the same conclusion, (operator). Or a combination of all the above at least. My last post was a question regarding stalling behavior on Edges, because of this likelyhood. Plus it wasnt really the right kite for the pretty dismall conditions I was testing in. largish ocean swell, up and down all day, but was still super fun, chop hoppin for hours.
I still managed one of the best mornings on the kites in a long time, issues aside.
A few observations that I really loved about this kite when it all came good: (no expert)
The race bar, which initially thought I would hate. The trim was very precise and very easy. A bar is something I thought I would never feel passionate enough to comment on but it was a very nice change.
Sheeting was quite tame compared to past sessions on the rebel.(13m). Kinda contradicts earlier comments but just felt smoother reactions.
One handed bar control. Tacking all the way out through this ocean swell to about.....398 meters...... and turning and chasing the swell back in using one hand on the bar all the way was a first for me, and a huge rush...Again, this was on the light bar pressure so probably part of my issues.

Very excited to get them out in some clean wind and some flat water.
Chris





SaveTheWhales
WA, 1896 posts
5 Jun 2015 6:33AM
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Adding to the above - sometimes the flick just doesnt cut it...

Try this it works

1. pump leading edge hard

2. hold the kite up and give it a good shake so any little kinks or bent strut connecting tubes open properly

3. wait for a minute

4. check strut pressure - if softish, pump again

5. check strut pressure - till it feels hard

6. the leading edge will deceive you - Electric pumps know this and keeps pumping (they are slow but this avoids initial overpressure and exploding)

Nothing worse than trying to pull some moves with half a mongrel

Plummet
4862 posts
5 Jun 2015 6:58AM
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Hell. I just pump my edges till the center strut doesn't have any wrinkles then I go for the ping test. When it goes from thud to ping your ready to go.

The only time i have had issues is when there has been sand in the valve and the kite has gone down. Then it gets all flappy.

So... clean out underneath the seal.


fellodawind
65 posts
5 Jun 2015 8:12PM
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I had a similar issue with my new edge... the 1st session was fantastic as i could jump to the moon.. 2nd sess started ok but the wingtip started to fold in.. 3rd sess was fine.. back to the moon and back.. 4th sess was ok and then started to fold in

I realised the valve was releasing air when not tight enough

Im used to Cabrinhas and they dont require much tightning

But with the edge u need to make sure it is really tight or it will release air.. but dont over tighten or it will damage the bladder

Hope this helps


eppo
WA, 9689 posts
5 Jun 2015 8:24PM
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No mate got nothing to do with tightening it more than other systems liKe this. Just make sure there is not a speck of sand on that seal (Both sides). Had similar issues, checking for sand sorted that.

fellodawind
65 posts
5 Jun 2015 8:31PM
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hmm u could b right.. but i pump up on the grass and release on the grass on the edge... also ive never had a problem with kites i pump up on the sand.. im pretty much sure the issue is with the valve been too loose

cauncy
WA, 8407 posts
5 Jun 2015 8:35PM
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You'll fold any kite if you get it wrong, especially in slack line moments, the bigger bloke you are the more the possibility, the older 7 struts were rock solid as you'd imagine, the newer models are a bit more prone, pretty sure this was a bit of a grumble from puetzy, but he's a big bloke, after the mini bridle was put on the 2013 zephyrs back lines pigtail ( which improved turning and tip folding when aggressively turned) I was surprised it wasn't introduced on the bigger edges , on this subject back line tension is something worth checking, shorter back lines will increase the chances of tip folding as it's flying on it's back lines as much as it's front,

Ozone Kites Aus
NSW, 884 posts
Site Sponsor
6 Jun 2015 12:00PM
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Select to expand quote
cauncy said..
You'll fold any kite if you get it wrong, especially in slack line moments, the bigger bloke you are the more the possibility, the older 7 struts were rock solid as you'd imagine, the newer models are a bit more prone, pretty sure this was a bit of a grumble from puetzy, but he's a big bloke, after the mini bridle was put on the 2013 zephyrs back lines pigtail ( which improved turning and tip folding when aggressively turned) I was surprised it wasn't introduced on the bigger edges , on this subject back line tension is something worth checking, shorter back lines will increase the chances of tip folding as it's flying on it's back lines as much as it's front,


The V2 Zephyr (2013) had the bridle connection points repositioned, as well as a general redesign of the LE and canopy, compared to the V1, which did buckle under load from big guys, especially if it was pumped a bit soft.

To the OP, just pump it hard, I'm certain thats all that was the issue and do clip off the struts.



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"Ozone Edge wing tip collapse" started by techtonic