Replacing Lifelines on
Bayfield 25 using ¼” Dyneema
Breaking strength is ~7000
Lbs. Lighter and easier to splice compared to wire rope.
I ordered ¼” silver Dyneema
from LFS Inc. Bellingham, Wa.
Each 18’2” lifeline used a
total of ~22’ with eye splices at each end. $.75/ft.
I needed Qty 4 ¼-28 threaded
extensions to attach the Dyneema to both Pelican hooks and forward
turnbuckles. These have both right hand
and left hand threading requirements.
I ordered the following from
San Diego Marine Exchange (Downwind Sailing Supply):
Qty 2 - HY14TJRH THRD T-BOLT TOGGL JAW @ 7.76 ea.
Qty 2 - HY14TJLH THRD T-BOLT TOGGL JAW @ 7.76 ea.
Qty
4 - SCR ¼” THIMBLE SS @ 0.74 ea.
Starboard aft original Bayfield pelican Hook with HY14TJLH THRD T-BOLT TOGGL JAW and SCR 1/4" thimble in the lifeline eye

I used 2 types of eye splice techniques. At the forward turnbuckles I used an
interlocking Brummel eye splice, which is easier to make, not quite as strong
or as pretty as the full bury splice that Samson recommends. I used that full bury splice on the aft eyes
for an easier time making the eye splice and the greater flexibility to adjust
the length of the lifeline before I made the splice.

3" of clear tubing and waxed sailing thread at the aft stanchions creates a soft-stopper for the lifeline. When the pelican hooks are unfastened, the forward lifeline tension remains adequate to suspend anything light that may be hanging from it.
It took less than a day to cut, splice and replace the 30 years old coated wire lifelines that were starting to show rust.
I used a lot of help from YouTube and the Internet.
I think they look great and they sure are strong.
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