Join Date: Oct 2009
Location: Swarthmore, PA
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Re: Double or single lifelines?
...I can tell you that you probably won't need to worry about it breaking. The stanchions will absorb a lot of the shock load. I just splice mine to the ring on the pullpits or lash them there. I'm using 1/4" line which works really well. 8600 lbs breaking strength is a little much and I'll probably drop it to 3/16 when I replace it. But the stuff is cheap and easy to splice, it's not like it takes 1/2 a day to change them out, or longer like it would w/ steel....
8600 lb is probably more than needed, but before you go with 3/16" line remember that the tension on the line will be waaaay more than your body weight. You need to do the geometry here:
Also remember that the rated strength is for new line. As soon as it gets UV, weather, and chafe at the contact points, your actual tensile strength goes down.
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2001 Catalina 34MkII Breakin' Away (at Rock Hall Landing Marina)
PO of 1998 Catalina 250WK Take Five (new owners relocated to Baltimore's Inner Harbor)
1991 15' Trophy (Lake Wallenpaupack)
1985 14' Phantom (Lake Wallenpaupack)