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Bow Inversion - Preventer

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ed257
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Bow Inversion - Preventer

Postby ed257 » Tue Jan 03, 2006 3:49 pm

I wonder why some of the bow kite makers don't put a line across the kite or even two lines in the form of an x to prevent inversion.

I think that a line across the LE arc front tip to tip might eliminate the risk of inversion in kites that are prone to it. This is just an idea - I have not tested it.

Another option is two lines across in the form of an X, each from LE to oppossite trailing edge.

I realize that the lines may induce a bit of drag, but if it solves inversion, it may be worth doing. It may also improve kite performance.

Any thoughts on this?

Ed

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Postby ScottM » Tue Jan 03, 2006 4:47 pm

Had thought of this, I'm sure something like that is being worked on. Perhaps there are a few issues that have to be sorted out in real life when it has been tested.

Scott

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Postby Xtream » Tue Jan 03, 2006 5:17 pm

Ed,

Its already been done, Windwing has done something very similar to what you are describing in their new Rapture 2 kites. They use a DSI Stablizer Line.

X

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Postby sq225917 » Tue Jan 03, 2006 5:58 pm

heres the ultimate bow kite inversion prevention...

dont push your bar out so far and switch to the next kite size down.....

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Postby GK » Wed Jan 04, 2006 1:57 pm

Xtream wrote:Ed,

Its already been done, Windwing has done something very similar to what you are describing in their new Rapture 2 kites. They use a DSI Stablizer Line.

X
I saw the WW DSI system last week when Bob was in town and from what I saw, it's not designed to prevent inversion. (As far as I know, the Windwings are not having inversion problems.) I think the DSI is designed to create more tension on the center of the TE for more consistent power.
It will be up to the 'bow' kite makers to solve the inversion problem. Kites like the Rapture and the Sonic are not 'bows' and they don't have the inversion problem.
We experimented with a span line back in the days of Seasmiks. The biggest problem came when the kite rolled inside itself, you would get a huge mess with the bridles wrapping around the span line. But it did stop the inversions.

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Postby sols » Wed Jan 04, 2006 4:46 pm

:?:
Last edited by sols on Tue Aug 08, 2006 5:40 pm, edited 1 time in total.

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Postby sols » Wed Jan 04, 2006 4:47 pm

8)
Last edited by sols on Tue Aug 08, 2006 5:42 pm, edited 1 time in total.

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Postby CaptainArgh » Wed Jan 04, 2006 8:05 pm

sq225917 wrote:heres the ultimate bow kite inversion prevention...

dont push your bar out so far and switch to the next kite size down.....
...but these are the ultimate safe beginner kites, right? Isn't that who is being pushed to them? Instant depower. Beginners don't know about the fine lines...push the bar away to slow down, pull it in to speed up.

Point being that in one thread we tout these kites as the ultimate beginner kite. In another thread (not necessarily this one) when any negative bow tendencies are described, we blame it on novice kiters. Well, these are the riders who need it simplest and safest. Sounds like a design problem that will hopefully be fixed in Version 2.0.

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Postby sq225917 » Wed Jan 04, 2006 8:15 pm

any kite using this shape and line configuration is liable to invert at some point.



apparently the true bow kites more so that the SLE kites.

it what peoplein the software world call a 'feature' :wink:

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Postby sols » Wed Jan 04, 2006 8:32 pm

toddjb123 wrote:
sq225917 wrote:heres the ultimate bow kite inversion prevention...

dont push your bar out so far and switch to the next kite size down.....
...but these are the ultimate safe beginner kites, right? Isn't that who is being pushed to them? Instant depower. Beginners don't know about the fine lines...push the bar away to slow down, pull it in to speed up.

Point being that in one thread we tout these kites as the ultimate beginner kite. In another thread (not necessarily this one) when any negative bow tendencies are described, we blame it on novice kiters. Well, these are the riders who need it simplest and safest. Sounds like a design problem that will hopefully be fixed in Version 2.0.
Bows fly different, relaunch different and they tend to invert more than C shapes. So they have to be taucht different. If a beginner wants to start with a bow kite he/she should have lessons on a bow and learn the bow characteristics in the correct way. If he/she takes lessons on C and then buy a bow, well, I don't think it works this way.


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