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Peak 4 air colapse

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Cefirmeza
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Peak 4 air colapse

Postby Cefirmeza » Sun Nov 21, 2021 12:12 pm

Second time using a Peak in 4m on proper wind for the size and after a toeside turn the kite colapses in the air and crashed. I could make a reverse relauch but pulled the wrong side and crashed again with no chances to relaunch so I had a swim in after a long kite kitefoiling.

What may have caused this colapsing? I was very aware of not crashing the kite but this was a bad surprise for me.
Perhaps an over sheeting or may reversed it.
What could have possibly gone wrong?

joriws
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Re: Peak 4 air colapse

Postby joriws » Sun Nov 21, 2021 12:29 pm

Are your front lines high-Y or low-V? In the air collapses might be due to low-V. When I was using Peak4 5m with V I experienced collapses but after switching back to Y, so far all stable now.

Cefirmeza
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Re: Peak 4 air colapse

Postby Cefirmeza » Sun Nov 21, 2021 12:36 pm

joriws wrote:
Sun Nov 21, 2021 12:29 pm
Are your front lines high-Y or low-V? In the air collapses might be due to low-V. When I was using Peak4 5m with V I experienced collapses but after switching back to Y, so far all stable now.
I use low V slingshot bars. I have 4 that I use for all my kites. Would be a shame if I need to get another bar just for the Peaks.

joriws
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Re: Peak 4 air colapse

Postby joriws » Sun Nov 21, 2021 12:41 pm

Cefirmeza wrote:
Sun Nov 21, 2021 12:36 pm
joriws wrote:
Sun Nov 21, 2021 12:29 pm
Are your front lines high-Y or low-V? In the air collapses might be due to low-V. When I was using Peak4 5m with V I experienced collapses but after switching back to Y, so far all stable now.
I use low V slingshot bars. I have 4 that I use for all my kites. Would be a shame if I need to get another bar just for the Peaks.
That might be it. If you are not willing to have another bar, maybe you could shorten the lines to achieve similar result. Look at Flysurfer line spec for Peak-bar (was it Connect) how far the split is from the kite. The air-collapse on low-V is at higher wind range, so I guess you would have enough wind for shortened-V too.

But this is just one possibility, and many people have reported on "Peak4-topic" V-vs-Y that Y is more stable.
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Cefirmeza (Sun Nov 21, 2021 1:18 pm)
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evan
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Re: Peak 4 air colapse

Postby evan » Sun Nov 21, 2021 1:19 pm

https://www.infexion.eu/shop/accessorie ... esplitter/

I have this splitter to make a high Y split on any bar, this way you can experiment with the height of the split and see if that makes a difference without the need for another bar. You can also grab one from a different brand if that is available in a local shop.

Also make sure the bridles and speed system are tuned properly.
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joriws (Sun Nov 21, 2021 2:37 pm)
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alekbelia
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Re: Peak 4 air colapse

Postby alekbelia » Sun Nov 21, 2021 1:50 pm

Cefirmeza wrote:
Sun Nov 21, 2021 12:36 pm
I use low V slingshot bars.
I use Peak's 4 with sizes 4, 6, 8, 11 meters for 2 years with skis and hydrofoil with low V bar. Never collapsed.

airsail
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Re: Peak 4 air colapse

Postby airsail » Sun Nov 21, 2021 8:43 pm

The 4 mtr Peak is a tiny kite, it is easy to oversheet if your not used to it. During a gybe your heading downwind so even easier to oversheet, it just takes some practice and you will get used to how they fly. I always used a low v bar on the Peaks, no problem at all.
And you practiced swim ins, a valuable skill when using Peaks as it will happen again.

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Re: Peak 4 air colapse

Postby Flyboy » Sun Nov 21, 2021 10:25 pm

Cefirmeza wrote:
Sun Nov 21, 2021 12:36 pm


I use low V slingshot bars. I have 4 that I use for all my kites. Would be a shame if I need to get another bar just for the Peaks.
I use a low V slingshot bar with my Peaks - no problems at all. In all honesty, Peaks are very easy to use, are very forgiving while jibing & and don't spontaneously collapse - even a little line tension will keep them flying due to their exceptionally light weight. I have to assume you made a significant mistake in your timing. Even if you do mistime the turn, it's nearly always possible to rescue the kite by creating a bit of line tension. Reverse water launching a Peak can be tricky - it helps if you are able to practice it.
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Cefirmeza (Mon Nov 22, 2021 9:23 pm)
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Foil_Adict
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Re: Peak 4 air colapse

Postby Foil_Adict » Mon Nov 22, 2021 4:12 pm

I have collapsed my 5m a few times while riding waves. It has always been a result of slacking the lines while fully depowered. Peaks are really class leading for drift. Nothing beats them other then a hand wing for downwind runs. But they are still kites and single skin kites at that, so you really do need to be mindful of line tension. It doesn't take much but just a little backline tension when going downwind can keep the peak from overflying and will help keep it's shape. I try to avoid slacking my lines on only the front lines, you can get away with it most of the time, but not all of the time.
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Cefirmeza (Mon Nov 22, 2021 9:21 pm)
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Foil_Adict
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Re: Peak 4 air colapse

Postby Foil_Adict » Mon Nov 22, 2021 4:15 pm

And I use a low V, no issue


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