zardos Posted October 13, 2009 Share Posted October 13, 2009 Hi, The problem with double braided lines is that it is really difficult to splice & that the two types of line (inner core & outer sleeve) have different elongation rates & breaking strains. Now this may be fine for climbing lines, with built in stretching characteristics, vital when put under the stresses of shock loading and also generally operating at much less NBS rates. Whereas synthetic lines used for winches have near to zero elongation prior to failure & operate at much higher breaking strains.. So, it is my belief that it is real difficult to compare the two disciplines as they are poles apart. AT. The rock climbing was just an example of high wear conditions, double braided ropes are available for sailing (winching up/in of sails) and tug assist ropes (same category as AmSteel Blue that somebody already mentioned on this thread). Also elongation rates and breaking strains are just a matter of selecting the right rope. e.g. AmSteel Blue has an elongation rate of 0.96% @ 30% Load with 12mm and has an average breaking strain of 34,000 lbs PROGEN II has an elongation rate of 1% @ 30% Load with 12mm and has an average breaking strain of 30,000 lbs So a double braid has 0.04% more elongation and a slightly lower the breaking strength for the same size (the breaking strength is still more than a 11mm Plasma and only 95.8% of a 12mm Plasma though) Quote Link to comment Share on other sites More sharing options...
will_warne Posted October 14, 2009 Share Posted October 14, 2009 Personally I've always been very impressed with Rufftracks Plasma 12. I've used this, Bowrope and Marlow. My experience with it is that the Bowrope is much 'harder' which, in my experience, makes it more susceptible to failure after several events as it can be very difficult to get mud out of the core of the rope. I've recently seen good things with Marlow but I've yet to be convinced to move away from plasma 12 when I come to get new ropes for the car. Quote Link to comment Share on other sites More sharing options...
zardos Posted October 14, 2009 Share Posted October 14, 2009 Update about Ropes. One double braided rope that looked suitable is not recommended by the manufacturer for use with a car winch but they did not say why. It is also twice the price of their recommended single braided rope Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.