Last summer I spun up huge balls of kelp on my Rocna during a couple of storm fronts when I was hunkered down in a bay. As soon as I got back home I ordered a swivel, thinking that would take care of all the vegetables my anchor was raking up. First night on the hook with the new swivel....wouldn’t you know it..... another huge wind event.
I stayed up all night (on shore) worrying about the boat. Would the swivel explode? Would I lose my boat? The next day when I pulled the anchor, I noticed the collar of the swivel was distended and bruised (stainless!) (from side-load) . I took it off and haven’t used it since.
Reason: I have read that the way to side-step side load is to put a shackle between your anchor and the swivel. Unfortunately, the distance between my pulpit and the gypsy does not allow for both a shackle and a swivel (the swivel will sit on the gypsy which is a deal-breaker) .
If I’d had the extra real estate, I would NOT have attached the swivel to the shank of the anchor...I would have had a shackle inbetween the swivel and the shank
I posted my experience on another marine website and several guys commented that a good quality shackle between the shank of the anchor and the swivel is the way to go...no more side-load issues. The recommendation was the “U” or “D” shaped shackles that give the shank plenty of leeway to move back and forth without any binding risk—-
The French made “Wichard” “D” shackle was the tool they recommended to get that job done
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