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4wings
Since 24 Mar 2012
2 Posts
TX-usa
New Member
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 Sun Apr 15, 12 3:45 pm Dyneema SK75-12 lines |
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I'm currently working on a kite-sailer ( see: http://www.kite-sailer.com ) and the kite control bar requires thinner lines - for initial testing we used sailing lines as I'm mostly boat-builder / sailor but they are just plain simple to bulky to make it work smooth.
Comparing the tensile strength of different products - dyneema SK75-12 lines have the best diameter to breaking strength numbers ...
Avg. Tensile strength for 1.8 mm - 1000 lbs
Avg. Tensile strength for 2mm - 920 lbs
Avg. Tensile strength for 3mm - 1920 lbs - 1/8"
With a price of average 0.45 per linear foot.
Available kite lines have Dyneema fibers as well - just not sure if 65 or 75 - their description is :
"PKS High-Visibility Pro-Lines line sets are high quality Dyneema lines specifically designed for kite-boarding, with a 700 lbs test strength .... at 0.54 per linear foot"
The kite lines I bought recently have 1.6 to 1.8mm cross section = to 1/16 -
The sailing lines are treated against UV and are often used for lifelines or running rigging where they are exposed to UV on a 24/7 basis ...so just wonder what might be the difference on the Dyneema SK75-12 to the kite lines?
Other aspect of interest is with a increase of 1.2mm line diameter ( or 1/64") - you could increase the breaking strength by more than 100% - and have a better overall line ---
Is the small diameter so important? Or am I missing something?
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Nak
Since 19 May 2005
4304 Posts
Camas
Site Lackey
CGKA Member
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| Sun Apr 15, 12 3:57 pm Re: Dyneema SK75-12 lines |
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| 4wings wrote: |
Is the small diameter so important? Or am I missing something? |
in a word, yes. The 1/16" amsteel or dyneema is too big. The 800# kite line is good stuff. Just be careful of what you get it. I had some 800 pounds stuff that was no good. Too stretchy. Stick with the Jerry Brown 800 pound fishing line.
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4wings
Since 24 Mar 2012
2 Posts
TX-usa
New Member
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| Sun Apr 15, 12 4:10 pm Re: Dyneema SK75-12 lines |
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| Nak wrote: | | 4wings wrote: |
Is the small diameter so important? Or am I missing something? |
in a word, yes. The 1/16" amsteel or dyneema is too big. The 800# kite line is good stuff. |
The #800 kite line is 1/16" if you measure it ...up or down a hair
Now I get even more confused ... 
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