I've used quality snap shackles for over 40 years now - they are great
my point is cheap ones will fail a lot faster than high quality ones - and i don't know about you but I'm not willing to sacrifice my steering/throttle connection with questionable gear that is known to be inferior ... just to save $40
cheap ones should work under normal conditions without problem
the real issue it's when your caught in a pop up storm and getting slammed with a big gust and they fail
i would also expect the cheaper steel to rust and/or seize the pin inside it much faster and needing replacement much more frequently - my last harken lasted over a decade with lots of hard use
Edited by MN3 on Aug 02, 2018 - 11:25 AM. [/quote]
Here's a coincidence....
I was reading this thread yesterday. For my main blocks, I've got one of these snap shackles at the boom and a conventional shackle to the traveler. After reading your post I start thinking I should be running two conventional shackles.
Leaving them as is for now, yesterday evening I took the P19 out solo in some fairly rough stuff. Buoy reporting 15 gusting to 19. At the harbor entrance I decided to run uni rigged with the jib furled. Less power, and just less to deal with solo. Blasting through some really steep waves, I get out about 3 miles and wind just keeps coming up. Decide to not push my luck, so I go to tack, and blow the tack. I look to make sure I am fully sheeted and see the boom with main blocks hanging loose off the side of the boat. I figure the shackle is gone, but see it hanging below the blocks, seemingly intact with the bolt still in place. Look to the traveller and it looks fine too. While my mind is racing on this, the bows are being blown and pushed by the waves downwind. I lash the tiller with rudders to windward with a bungee, then move foward and pull the boom back over the deck, finding that the conventional shackle has broken. (A first for me.)
Got my spare parts bottle out of the deck port and grabbed a couple shackles, one the same size as the failed one, and one with a very large crown and captive bolt that I figured would be temporary but easier to hold onto in the conditions I was in. (I took the photos later at the dock to recounting the event here).
With the blocks flying all over the place, I took a dock line and went through the becket on the cam cleat and tied it to the crossbar:
I fumbled with the small shackle, and with stuff moving around so much I just was not making progress. So I pulled out the larger crown shackle and with multiple attempts and some patience was able to get it in place:
Obviously not the right tool for the job, but I took it as easy as I could to get back to the harbor.
The break in the shackle was not clean. It was corroded save for a small shiny spot. Apparently there was a hairline crack that I had probably been running with for quite some time. I've never inspected shackles as they have never failed in my 40+ years of sailing. I trusted them like I do bolts. No more. Going to inspect all for this issue. Also, after discussing the incident with a fellow sailor, I am going to go with this type of shackle which should better distribute the load:
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Bill Mattson
Prindle 19 "Gelli Bean"
Prindle 19 "Cat's Pajamas"
Nacra 5.2 (Will sail her a bit and let her name herself)
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