Kite deflating issue please help!

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realplayer
realplayer
QLD
186 posts
QLD, 186 posts
12 Feb 2013 8:51am
Hey guys,

Hope everyone is getting some good wind! I am having an issue with my Slingshot 2012 RPM.. When crashing the kite the dump valve comes out causing the kite to deflate, this is happening to me on a regular basis as I am always trying new tricks. It can be quite dangerous especially when kiting in a strong current.. I have tied a zip around the valve to try and stop it from coming out when crashing but to no avail. Has anyone else had this problem and have a solution? I wish SS would use the screw type valve cabrinha and ozone use..

Thanks,
Alex
Puetz
Puetz
NT
2186 posts
NT, 2186 posts
12 Feb 2013 8:49am
... not familiar with Slingshot but is there ment to be some velcro strap(s) that goes over the top of the valve, is it missing?
realplayer
realplayer
QLD
186 posts
QLD, 186 posts
12 Feb 2013 9:49am
Hey man, yea there is a velcro strap that goes over, it must not provide a very strong hold because the deflate still manages to pop out...
Underoath
Underoath
QLD
2434 posts
QLD, 2434 posts
12 Feb 2013 10:26am
How much PSI are you putting into your kites?

Secondly, do you trap the air into each strut with the hose clamps?

I'm thinking with the clamps open, the air pressure can move around the kite when hitting the water.
realplayer
realplayer
QLD
186 posts
QLD, 186 posts
12 Feb 2013 10:33am
I usually only put in 7 PSI in as I thought over inflating could contribute. I sometimes put less in to be safe.. I also clip the struts off but they tend to unclip if the kite hits the water..
kiterboy
kiterboy
2614 posts
2614 posts
12 Feb 2013 9:00am
BS meter is registering on this one.

Your dump valve must be supremely stretched if crashing the kite is popping it open, unlikely for a 2012 kite, even the velcro shouldn't be in bad condition.

The way strut clips are made and operate makes it pretty much impossible for them to be popped open by way of pressure through those small tubes.
Unless the strut clips are very worn, again unlikely for a 2012 kite.
realplayer
realplayer
QLD
186 posts
QLD, 186 posts
12 Feb 2013 11:17am
Thanks 'kiterboy' for your valued response... Can I ask do you own a 2012 SS RPM?

I am posting about this because it is causing me a real issue, I have been kiting on and off for around 6-7 years but only started working on more advances tricks like passes this season, hence probably the more crashes.. This has happened on BOTH my 9m and 12m kites which both have less than 12 months use, I take very good care of my kites I don't think the dump valves are stretched.. But every time it has happened all the one pump clips have unclipped themselves, the velcro has come off and the dump valve is fully opened..
NSW, 74 posts
12 Feb 2013 12:29pm
Hi Real -

Where did you purchase the kite from and where are you located?

I would suggest taking it down to your local SS agent to have a look at it for you. Its an unusual situation if the vlave is fitted properly and the velcro secured but something that shouldnt be happening.

Regards

BC
kiterboy
kiterboy
2614 posts
2614 posts
12 Feb 2013 9:34am
Easy answer then.

Since it's happening on more than one of your kites, you're probably not closing the clips and valves properly.

If that's not the answer, then you've bought two dodgy kites (unlikely unless you got them from China direct) and should take them in to get looked at as Boardcrazy suggests.
J inthe bool
J inthe bool
VIC
105 posts
VIC, 105 posts
12 Feb 2013 1:28pm
Have you tried:

Not crashing your kite..? i find it works well in most situations.
Chris6791
Chris6791
WA
3271 posts
WA, 3271 posts
12 Feb 2013 11:42am
I had the same problem with my Core GT's where the inflate valve would blow open on a hard crash landing. I just wrapped another piece of Velcro strap, maybe 3 inches long, around the valve and Velcro tabs on the kite. This extra strip of Velcro stopped the Velcro stitched to the kite from sliding off the valve.
NickT
NickT
WA
1094 posts
WA, 1094 posts
12 Feb 2013 11:49am
kiterboy said...

The way strut clips are made and operate makes it pretty much impossible for them to be popped open by way of pressure through those small tubes.
Unless the strut clips are very worn, again unlikely for a 2012 kite.



My C4's always come unclipped after a few crashes and always have from new
kiterboy
kiterboy
2614 posts
2614 posts
12 Feb 2013 1:00pm
I don't see how they can come unclipped if they've been clipped in properly to begin with, unless the clips are dodgy.
Spitfire
Spitfire
WA
398 posts
WA, 398 posts
12 Feb 2013 1:03pm
kiterboy said...
BS meter is registering on this one.

Your dump valve must be supremely stretched if crashing the kite is popping it open, unlikely for a 2012 kite, even the velcro shouldn't be in bad condition.

The way strut clips are made and operate makes it pretty much impossible for them to be popped open by way of pressure through those small tubes.
Unless the strut clips are very worn, again unlikely for a 2012 kite.



I think the deflate bungole must get looser/streched over time.

Ive had a similar issue with my rally. Had the deflate bung pop open on me twice after failed kiteloops. One time the kite filled with water. Luckily it was low tide and i wasn't to far from the beach and I could stand otherwise it might of been goodbye kite.I also have had strut valves come undone after i have firmly clipped them down. No bull****.

Kite was a 2011
eppo
eppo
WA
9793 posts
WA, 9793 posts
12 Feb 2013 1:46pm
Yes not crashing it as much would help.. but I can see you are pushing the boundaries a bit so its enevitable. On a postiive note the release given by the valve coming open may have actually saved a leading edge blow out a few times maybe??
puppetonastring
puppetonastring
WA
3619 posts
WA, 3619 posts
12 Feb 2013 2:18pm
realplayer said...
I usually only put in 7 PSI in as I thought over inflating could contribute. I sometimes put less in to be safe.. I also clip the struts off but they tend to unclip if the kite hits the water..


Thats probably your problem. Strange as it may seem a tighter kite will put less pressure on the valves when you crash it than an under-inflated kite simply because the air has less room to move.
You will also get way better response if you pump up closer to 9 than 7. 7 doesnt cut it on most newer model kites. Pump till you cant pump no more. There is no-way you can overinflate them. If they are about to pop better it happens on the beach.

You could also try dunking the cap in boiling water then inserting a valve nozzle - cut so that as you push it into the cap the cap has to stretch. Leave it for a few minutes then dunk the cap & nozzle into cold water. This will expand the cap for a tighter fit.
BrisKites
BrisKites
QLD
1293 posts
QLD, 1293 posts
12 Feb 2013 4:53pm
That only works with the plastic inflate valves.

Try putting a thin Zip tie around the outside of the valve and pull it in just a couple of clicks. Test to see if its any harder to insert the plug. If it is go try it out, if not tighten a touch more.
suniboy21
suniboy21
VIC
1090 posts
VIC, 1090 posts
12 Feb 2013 6:19pm
puppetonastring said...
realplayer said...
I usually only put in 7 PSI in as I thought over inflating could contribute. I sometimes put less in to be safe.. I also clip the struts off but they tend to unclip if the kite hits the water..


Thats probably your problem. Strange as it may seem a tighter kite will put less pressure on the valves when you crash it than an under-inflated kite simply because the air has less room to move.
You will also get way better response if you pump up closer to 9 than 7. 7 doesnt cut it on most newer model kites. Pump till you cant pump no more. There is no-way you can overinflate them. If they are about to pop better it happens on the beach.

You could also try dunking the cap in boiling water then inserting a valve nozzle - cut so that as you push it into the cap the cap has to stretch. Leave it for a few minutes then dunk the cap & nozzle into cold water. This will expand the cap for a tighter fit.


On the money, took the words out of my mouth. Aim for about 8/9 psi.
I used to have the same problem with my ss octanes.

Spitfire
Spitfire
WA
398 posts
WA, 398 posts
15 Feb 2013 8:48am
if you don't pump the rally up (2011) rock hard it gets a weird windtip flutter when turned quickly. Doesnt effect the flight of it but it scares the crap out of me. I think they have fixed this now though
realplayer
realplayer
QLD
186 posts
QLD, 186 posts
19 Feb 2013 9:06pm
Hey guys, really sorry for the very late response!

Appreciate all the feedback, has anyone with RPM's experienced this problem? I am struggling to grasp the concept of a higher inflate pressure could stop this problem..

I am starting to think the velcro isn't strong enough to hold the deflate in place..
seafever17
seafever17
WA
360 posts
WA, 360 posts
19 Feb 2013 7:24pm
Lower inflation pressure means that when your kite hits the water at speed it folds. This generates much higher peak pressures against your valve than if the kite was more rigid despite the higher internal pressure pumped in.

Also depower when all hope is lost.
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