Island Time 1,235 Posted February 25, 2015 Share Posted February 25, 2015 Here is an image of an Anchor swivel, common in NZ, that has failed due to side loading. In this case the anchor actually held, but fell off the chain while the anchor was being retrieved! The problem was side load. These swivels are often incorrectly attached directly to the anchor - there should be a few (3-4) links of chain BETWEEN the anchor and swivel, to ensure it can't get side loading and the boat swings around the anchor. Do you have a swivel? Is it attached correctly? Maybe you should check? Link to post Share on other sites
Kevin McCready 83 Posted February 25, 2015 Share Posted February 25, 2015 Thanks Matt I'll have to get mine fixed. Have been meaning to sew some measuring tapes to the links so now is a good chance. Link to post Share on other sites
wild violet 38 Posted February 25, 2015 Share Posted February 25, 2015 wow thats just confirmed my impression of them,shiney junk Link to post Share on other sites
Island Time 1,235 Posted February 25, 2015 Author Share Posted February 25, 2015 I don't agree WV, they do their job pretty well, and many are stronger than the chain in linear pull. They just need to be installed correctly - ie NOT directly on the anchor! Link to post Share on other sites
w44vi 17 Posted February 25, 2015 Share Posted February 25, 2015 Are they actually needed ? I have never had any problems without one on my anchor Link to post Share on other sites
erice 732 Posted February 25, 2015 Share Posted February 25, 2015 think my older style is fine directly to the anchor how it should be done? how it shouldn't be done Link to post Share on other sites
Black Panther 1,586 Posted February 25, 2015 Share Posted February 25, 2015 Are they actually needed ? I have never had any problems without one on my anchor +1 Link to post Share on other sites
Island Time 1,235 Posted February 25, 2015 Author Share Posted February 25, 2015 That depends on your set-up. All chain can sometimes get away without one. Rope sometimes twists in the capstan, esp laid (like 3 strand etc). Personally, my set-up needs one or the chain twists up. + the rocna anchor often comes to the boat upside-down. If you don't know if you need one, try without, install one only if needed. Oh, and the DD shaped ones like the top pick above, with bolt between - most are crap, and fail early. KM has tested them and may comment further. Link to post Share on other sites
Clipper 343 Posted February 25, 2015 Share Posted February 25, 2015 Eric, I would think the older style is still susceptible to side loading if direct to anchor? (this is not from any experience with anchor swivels, just shackles in a rigging sense) Link to post Share on other sites
NevP 0 Posted February 25, 2015 Share Posted February 25, 2015 It's pretty clear from this why direct connection to the anchor is a bad idea. My question is why do they appear to be manufactured to allow this? From the images here it appears there is a short slot that will only allow a chain link to be attached whereas the other end has a longer slot capable of accepting the anchor shank. Why are both slots not capable of only accepting a chain link if this is how they should be connected? Link to post Share on other sites
Chewing Gum 17 Posted February 26, 2015 Share Posted February 26, 2015 had one of those things and took it off ages ago after hearing bad reports. We have a Rocna and only very occasionally it comes up upside down but it is not a big deal. I sleep easier knowing it is one item that is not there to fail. Link to post Share on other sites
John B 106 Posted February 26, 2015 Share Posted February 26, 2015 I'd rather my daughter went out with a methamphetamine dealer on a motorbike than have one of those things between my boat and family and the rocks. I've never had a problem with my rocna getting turned back either. Well, apart from the time it flipped out of the fairlead..... I fitted a spectra strop to captivate it after that. Link to post Share on other sites
erice 732 Posted February 26, 2015 Share Posted February 26, 2015 i'll study mine again then pretty sure i'll find it's like; the bronze jib hanks, mast, rigging, anchor, chain, engine, etc and everything else on my little north sea baby european made, 1 over-size + waaaaaay over spec for a narrow 25' boat Link to post Share on other sites
John B 106 Posted February 26, 2015 Share Posted February 26, 2015 I told my D2 a few times that she would be better off using Meth or Heroin than watching some bullshit Aussie soap she does. Something came up in Social Studies and she repeated that to her teacher. I got spoken too by the PC infested little faith in his students headmaster. I rode my motorbike to the school and not one car driver tried to kill me............ for a pleasant change Heh heh. yeah don't start me on my unrated shackle rant, there was a period there when every chandlery in AKL sold junk anchor shackles that looked exactly like the well made ones we'd all been buying for the previous couple of decades. It was when I stripped a 14 mm one with a 6 in crescent I looked a bit closer and discovered they might have well as painted the threads on. barely cut. Link to post Share on other sites
ex Elly 197 Posted February 26, 2015 Share Posted February 26, 2015 So where can we buy decent galvanised shackles? I have seen some in the westhaven chandleries, which have been manufactured bent (assymetric). Looks dodgy... Link to post Share on other sites
Island Time 1,235 Posted February 26, 2015 Author Share Posted February 26, 2015 Chains Ropes and anchors http://www.chainsropesandanchors.co.nz/ (That's Knot Me on here, for those who don't know) Link to post Share on other sites
Kevin McCready 83 Posted February 27, 2015 Share Posted February 27, 2015 Is this the answer? Also despite google and duckduckgo I don't know what 1. galvanised swivel bar is 2. H-Lock Link to post Share on other sites
eruptn 95 Posted February 27, 2015 Share Posted February 27, 2015 Question How do transport rated trailer shackles (NZ5467) compare ..... Link to post Share on other sites
PaulR 3 Posted February 27, 2015 Share Posted February 27, 2015 great info. Thanks for the extra comments KM Link to post Share on other sites
Kevin McCready 83 Posted February 28, 2015 Share Posted February 28, 2015 Thanks Grant!! Link to post Share on other sites
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