Next message: Rudy and Jill Sechez: "Re: T&T: Double Braid as anchor rode"
Hi Joel -
I just happen to have this info as I have been considering New England Ropes
"Mega-braid" for a docklines. I don't know about other braids, but this one
was developed specifically for anchor and dock line. That's good, because we
like some stretch in our dock lines and there is none in the braided dock
lines we have now.
Compared to 3-strand, Mega-braid will take more abrasion, is slightly weaker
and will not twist under load, eliminating the need for a swivel. It will
also coil and stow better without kinking.
The stretch, at 10 and 30 percent of breaking strength, is essentially the
same as 3-strand: 6 and 14 percent respectively. Because Mega-braid is made
to metric dimensions, its difficult to compare tensile strength; a close match
is 1/2" (12.7mm) 3-strand at 7,500 lb vs. 12mm Mega-braid at 7,000 lb.;
another close match is 1" (25.4mm) 3-strand at 29,400 lb vs. 25mm Mega-braid at
25,000 lb. Not a big deal.
Disclaimer: My company is a New England Ropes dealer, but not in the marine
market.
Regards,
John
"Seahorse"
> Could someone explaing the reasons for using double braid as anchor line.
I have always been under the impression that the most common line used for
anchoring is 3 strand twist primarily for it's ability to stretch as it does.
Stretch being a good thing...Braid stretches less than 3 strand and double
braid stretches even less. From what I have seen double braid is more expensive
too. Certainly harder to splice.
Is it for added strength? Or does it run better on a windlass? Or is it for
laying better in a chain locker?
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