One of our new snubbing lines and hook, with a standard hook for comparison
During our time in the Rias of Galicia we’ve enjoyed many comfortable nights at anchor. But as is the case in any area surrounded by hills we’ve had plenty of wind at times, rolling down off those same hills, or funnelling down the valleys. We had one memorable night where despite the fact that we had some shelter, the gusts were blasting ferociously around a small promontory to windward, obviously due to a curious land effect. And although we were well sheltered from any sea, some of the gusts were fierce enough to send Pelerin swinging around her anchor.
Not conducive to sound sleep, but made easier by the fact that we had a really long nylon snubber attached to the chain, soaking up the strain in the gusts, and stopping any shock loadings on the anchor.
Looking around some of the anchorages here, it’s evident that not everyone shares that enthusiasm. If snubbers are attached at all, many of them are fastened to the cable just a couple of feet down, which will be just enough to take the load off the windlass. Not that that is a bad thing in itself, as it can avoid damage to the mainshaft of the windlass, but it’s far from enough to allow the snubber to stretch sufficiently to absorb shock loadings from strong winds or swell. And as Alain Fraysse has shown in his extensive dissertation on anchor cables stopping shock loadings can be essential in difficult conditions if the anchor is to stay well set.
At all times we carry at least two snubber lines of 16mm 3 strand nylon. These are 20m (66ft) each and we’ve always used simple stainless agricultural chain hooks to attach the snubber to the chain, and these have never let us down. However, we have heard of the odd occasion when one has dropped off the chain, defeating the object of the snubber, so when we came to replace one of them this time we went for a Wichard hook which has an integral spring loaded pin that is designed to ensure that the hook cannot fall off. These aren’t as hefty as the standard hooks, but should be more than adequate for the job, although I’d have to say that the locking pin looks a little small to my eyes.
In the gusts the other night we had around 40 ft of snubber out and allowed a good bight of slack in the chain. We then watched the snubbing line stretch out amazingly as the real blasts came through, taking up almost all of the slack in the chain, but at no time did the chain come up taut.
A second snubber would probably have been a good idea and I think that might be where the Wichard hook with its locking clip could prove useful. Sometimes it’s difficult to keep the same tension on with two snubbers, and that might allow one fitted with a normal hook to fall off – we’ll see, but if anyone has any experience of this or opinion on these new hooks it would be good to hear them.
{ 5 comments… read them below or add one }
Hi Colin,
Great post. On chain hooks, we used to use one, but found that from time to time it would drop off. For the last 10 years we have just attached the snubber with a double rolling hitch and never had a problem.
Hi Colin,
We also anchor a lot – in fact 9 of the last 14 nights. I too use a snubber, our is 12mm and apropriately stretchy. Unfortunately there are two issues with it. Firstly I made it too short – at 15 metres, which means in strong gusts it can ‘run out of stretch’. Secondly we have the same hook as you have just replaced – and ours too ‘drops off’ at times – which is a real pain – whilst the Ovni roller system is very strong – being all aluminium and welded it is also noisy in the forecabin! So, I am looking for a replacemnt hook and will keep an eye out for the Wichard one; when I find it, some longer rope will also join our selection.
Enjoying the best summer weather for years in the Solent
Colin,
I recently made an anchor bridle out of 40 ft. of 3/4 inch 3 strand. In the middle I placed my hook made it permanent with whipping line. I placed a bowline at both ends large enough to fit through and around my bow cleats which are about 8 ft. from the anchor roller. I pass the bridle around and under the chain through fairleads on either side of the bow roller assembly and then to the cleats on port and starboard. After all is assembled I let out the chain sufficient to put all the load the bridle and then some. In addition I put a short snubbed on the chain just pass the windlass just in case.
I, too, have had the hook fall off the chain and was interested in the Wichard hook. I also think Steve Dashew recommends using knitting twine that would hold the hook in place but would fail if you needed it stowed quickly
I used now about a half dozen times and it works quite nicely. Eventually I plan to replace the bowlines with properly spliced loops at the two ends.
I am intrigued by John’s even simpler solution and the length of line that you use. I have not experienced such conditions as you describe so I am not sure if I have enough or too little line.
Hi Paul
I’d agree that a longer line might be better, especially if you ever use it from (say) a spring cleat to shear the boat. It might also be the case that a heavier (14mm 0r even 16mm) might stretch less – we reckon ours is about right for the 435.
The standard bow rollers are too narrow for the cheek plates, and so ‘knock’ when the boat swings and the load comes onto the snubber. We had a new, larger diameter roller made for the port channel, the same radius as the inside of our Rocna anchor, and had it made wider to fit the cheek plates better. We have sacrificial elastic line between the sides of the starboard roller and the cheek plates, and so there’s no noise from it now. Hardly engineering, but it’ll do fine until we are stopped for long enough to have another roller machined!
Victor, sounds like a good set-up, but as Paul notes it’s amazing how these lines can stretch, so longer might be good. We don’t put eyes in our lines, simply so that we can adjust them to suit. In normal conditions we probably would put more than 10ft or so out, but as the wind gets up we progressively let out more.
John’s solution is simple and elegant, but I take note of his point of double rolling hitches – singles can come undone when not under constant load. But I still like hooks!
Best wishes
Colin
Hi Colin,
Interesting ideas on snubbers. We always use a snubber (aprox 40 ft), usually with 10 ft let out in light to normal winds. If it starts to blow hard, we put out more. The double rolling hitch is our choice – it never falls off, plus any reasonable line will do the job in a pinch. Years ago we had a hook fall off (again) while anchored in a blow at Shelburne while on our way home to Newfoundland. It was not nice.
I’ve never trusted the chain hook since.