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bisdremis
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Postby bisdremis » Mon Sep 06, 2010 8:37 pm
does anyone knows what are the acceptable strenght spesification for a line to be used in kitesurfing.(along with prestreching , abration resistance, floatation ect) . i quess front lines should be stronger than back lines. is 250daN/500lb suitable for front line use?thanks
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mx5alan
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Postby mx5alan » Mon Sep 06, 2010 9:40 pm
Normally 3x body weight mimimum for all lines.
or just use 300kg lines
or check manufactures website for the kite you want them for and use same line strength as is supplied with the kite. For normal use there is no need to increase line strength.
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malden
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Postby malden » Tue Sep 07, 2010 6:01 am
bisdremis wrote:does anyone knows what are the acceptable strenght spesification for a line to be used in kitesurfing.
may'be you got EH? I too.
take a normal kite with good lines.
liquid force kites have lines 600lbs
slingshot 800lbs (front)
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danny31292
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Postby danny31292 » Tue Sep 07, 2010 7:23 am
malden wrote:bisdremis wrote:does anyone knows what are the acceptable strenght spesification for a line to be used in kitesurfing.
may'be you got EH? I too.
(front)
Yea the EH lines break a little to easily for comfort.
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Nico
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Postby Nico » Tue Sep 07, 2010 12:02 pm
240 Kg is standard for kitesurfing lines, front and back.
Nico
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bisdremis
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Postby bisdremis » Wed Sep 08, 2010 8:03 am
Nico wrote:240 Kg is standard for kitesurfing lines, front and back.
Nico
actually this seems a bit low for front lines
dont know thought
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Nico
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Postby Nico » Wed Sep 08, 2010 12:21 pm
That gives total front strentgh of 480Kgs.
Not enough ?
All four lines come close to 1ton, aprox 10times more than any riders weight
thats plenty if you ask me
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KiteSurfingKen
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Postby KiteSurfingKen » Wed Sep 08, 2010 12:57 pm
600lb is pretty common in my experience. I like what mx5alan said about 3x body weight.
In the past I did some calculations and discovered it would be theoretically possible to reach 3g of force (or more) in a kiteloop.
The thing to keep in mind is that there are many different forces acting on the kite from different directions.
This results in uneven load distribution between the four lines, with much more force on the front than the back lines.
Even between the front lines, the load may not be distributed equally.
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BWD
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Postby BWD » Wed Sep 08, 2010 3:00 pm
I think the main thing is enough thickness, especially on front lines, to survive for a while with wear from line twist (and maybe some sand in there).
New lines are almost always strong enough, but over time, strength can degrade from wear.
IMHO 300kg is plenty strong and beefy enough to last a good while,
but of course with time 300kg can stretch more than 360kg.
The "800 lbs" (360) slingshot lines are tough, but tend to make a lot of air drag, and vibrate in the air at some speeds. Thinner 800lbs lines are around (e.g. dyneema, like ozone's) but they seem more fragile with a different braid....
If you are big or ride in high wind, bigger lines may be good, and might last longer.
If you ride in light wind and want less drag, thin is good.
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bisdremis
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Postby bisdremis » Thu Sep 09, 2010 8:52 pm
thanks a lot guys now i know better what im looking for
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