From Practical Sailor. “International Sailing Association and Federation (ISAF) Offshore Special Regulations give considerable attention to lifeline design. For boats over 28 feet, they must be a minimum of 24 inches above the working deck and be made of uncoated wire or the equivalent high molecular weight polyethylene rope (HMPE) like Dyneema or Spectra. If socket-type bases are used, through-bolting, welding, or bonding is mandatory. Socket mounts with set screws or self-tappers have been known to work free. When using high-modulus fiber lifelines, the type of splice used should be what the manufacturer recommends; versions of the Brummel splice are often the preferred approach for placing an eye in single-braid line.” See full article at https://www.practical-sailor.com/issues/37_21/features/long-term-test-evaluates-synthetic-lifelines_10875-1.html
Sent from my iPhone > On May 13, 2019, at 8:55 AM, dwight veinot via CnC-List > <cnc-list@cnc-list.com> wrote: > > Any polymeric lifeline like spectra, amsteel or dyneema is not a real > “lifeline” regardless of tensile strength. > >> On Mon, May 13, 2019 at 9:16 AM Jerome Tauber via CnC-List >> <cnc-list@cnc-list.com> wrote: >> According to Sail Magazine article it’s less of a propeller today. >> “Ultra-High Molecular Weight Polyethylene, or HMPE, popularly known as >> Dyneema or Spectra, is some 15 times stronger than steel weight-for-weight; >> 5mm (3/16)Amsteel Blue has a tensile strength of 5,400lb. It’s also >> versatile, chafe-resistant, easy to splice and more resistant to UV >> degradation than many other fibers. Among its many other uses on board, it >> has become popular for lifeline replacement.” >> Jerry >> https://www.google.com/amp/s/www.sailmagazine.com/.amp/diy/know-how-replacing-lifelines >> >> Sent from my iPhone >> >>> On May 12, 2019, at 10:02 PM, Charlie Nelson via CnC-List >>> <cnc-list@cnc-list.com> wrote: >>> >>> Agree in general but has such high tech line solved its limited lifetime >>> under constant UV? >>> >>> This problem led me to go with bare SS a few years ago instead of such high >>> tech line. >>> >>> Charlie Nelson >>> 1995 C&C 36XL/kcb >>> Water Phantom >>> >>> Sent from AOL Mobile Mail >>> Get the new AOL app: mail.mobile.aol.com >>> >>> On Sunday, May 12, 2019, Jerome Tauber via CnC-List <cnc-list@cnc-list.com> >>> wrote: >>> >>> I would replace with Dyneema, super-strong , greater strength for its >>> diameter than wire, easy to splice, lightweight, feels good to the touch >>> (doesn't cut into your back), easy to inspect, needs fewer fittings than >>> wire, low-stretch, doesn't chafe sheets and sails, costs less and looks >>> better. >>> >>> See https://www.sailmagazine.com/diy/know-how-replacing-lifelines. Jerry >>> >>> _______________________________________________ >>> >>> Thanks everyone for supporting this list with your contributions. Each and >>> every one is greatly appreciated. If you want to support the list - use >>> PayPal to send contribution -- https://www.paypal.me/stumurray >>> >>> _______________________________________________ >>> >>> Thanks everyone for supporting this list with your contributions. Each and >>> every one is greatly appreciated. If you want to support the list - use >>> PayPal to send contribution -- https://www.paypal.me/stumurray >>> >> _______________________________________________ >> >> Thanks everyone for supporting this list with your contributions. Each and >> every one is greatly appreciated. If you want to support the list - use >> PayPal to send contribution -- https://www.paypal.me/stumurray >> > -- > Sent from Gmail Mobile > _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each and > every one is greatly appreciated. If you want to support the list - use > PayPal to send contribution -- https://www.paypal.me/stumurray >
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