Thread: HM rigging
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  #7  
Old 03-25-2009, 03:46 PM
Jack Jack is offline
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Join Date: Nov 2006
Location: San Carlos Mexico/Oregon/Alaska
Posts: 75
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I was curious and looked up the Vectran sheet.

http://www.neropes.com/product.aspx?...6C&lid=1&pid=5

And compared it to the Dynex Dux sheet

http://www.hampidjan.is/media/pdf/00...taflaagu02.pdf

One comparison I got (apples to apples) was for 11mm rope size. The other sizes are

1mm diferent.

So....11mm shows

Vectran......#21,000

Dynex Dux....#37,000

There are many other comparisons, and other factors. But the way to think of synthetic rigging is not just how strong do I need to hold the rig up, but how strong do I need to stop creep? By keeping the static load below 20% of breaking strength you will end up with next to no creep. The charts for this are at:

http://www.colligomarine.com/Colligo.../Dynex-Dux.htm

You can see the potential to have less creep than SS wire!

I used mostly 7mm for my 34' Searunner Trimaran. Cutter rig double spreader. The original specs were for 7/32" and 1/4" wires. We can really put a load on the rig with the stability we carry.

So far so GREAT!

As a little aside, I was talking to Hampidjan guys a while back about all this, he told me they are more interested in big boat stuff. They were producing 3" Dynex Dux with a double overbraid for an oil rig!.....It is "off the charts" I see 2" or 51mm has a breaking strength of 242 TONS!

Kee-rumba!....:-)

Last edited by Jack : 03-25-2009 at 03:50 PM.
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