Date
1 - 20 of 29
How to hold the anchor in place in deck
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Hello all. When my anchor is in place it moves sideways. It is not much, but I am afraid that chafe in the long term may bring bad consequences. I wonder how other Amen owners have solved this, so I would appreciate ideas to fix it and avoid any movement. Thanks in advance. Víctor SM314 Alendoy |
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James Alton
Victor,
The bow on my boat will be a little different than yours and I am not sure of which anchor you are using . I found a good solution for the original Mantus anchor on our Marmaru that locks the anchor down so well that it doesn't move even in gale conditions. The best part of this solution is that the only requirement to secure the anchor is to keep some tension on the chain, no other tie lines are required. The key is to form a wedged contact surface so that when the anchor is drawn in, it comes in firm contact with the wide flukes of the anchor on the bottom while the wedge shape causes the shank of the anchor to be pressed down on the anchor roller. Thus as chain tension is applied with the anchor stored, the pressure points on the bottom contact points of the anchor against the block and the shank pressing into the anchor roller increase which takes all of the movement out. In our case we used a heavy mahogany block, positioned and shaped so that the anchor would stop before hitting the bow so the anchor handling is pretty easy. I shaped the block so that the angle difference between the flukes of the anchor and the block was very shallow so like using a thin wedge, you get a lot of pressure between the anchor roller and the wooden block applying without much chain pressure. The Mantus anchor we are using unfortunately was coming in upside down almost 1/2 of the time initially so we added the Ultra flip swivel which so far has allowed the anchor to come in right side up everytime since it was installed more than a year ago. Your own solution options will depend on the anchor you are using and the somewhat different shape of the SM bow but I think that the same basic principle can probably be applied. Best of luck to you in finding a solution that works well for you.
Best,
James Alton
SV Sueno
Maramu #220 -----Original Message-----
From: VICTOR MOLERO <victor.moleroxx@...> To: main@AmelYachtOwners.groups.io Group Moderators <main@amelyachtowners.groups.io> Sent: Tue, Feb 7, 2023 5:35 pm Subject: [AmelYachtOwners] How to hold the anchor in place in deck Hello all.
When my anchor is in place it moves sideways. It is not much, but I am afraid that chafe in the long term may bring bad consequences.
I wonder how other Amen owners have solved this, so I would appreciate ideas to fix it and avoid any movement.
Thanks in advance.
Víctor
SM314 Alendoy
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James, I really appreciate your thorough description. My anchor is an Ultra 45 that fits quite well on top of the roller, but the shank moves sideways unless I put a lot of tension on the chain, and even then I don't think that it would stand well gale condition waves. It would be great if you could provide some pictures of your solution to better understand the shape, size and position of the block. Thanks again. Best. Víctor SM314 Alendoy |
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Everybody, it is dangerous practice to run the anchor and chain up until it stops against the bow roller BUT, when the anchor and chain are pulled up against the stops, stalling the windlass, those forces could easily exceed the maximum working loads, instantaneously, potentially damaging the windlass, bow roller, and any hardware holding things together. We never run the anchor up against the stops for this reason. On the rare occasions when we’re not paying attention and we do, we back off immediately. This reasoning also applies to raising someone going up the mast using an electric winch. Never jam a halyard splice or knot into a mast top sheave, as the line could fail, dropping the person being hauled up. |
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Very interesting reflection, Matt. Thank you very much for the explanations. How do you prevent the sidewise movement of the anchor shank when sailing? Best Víctor SM314 Alendoy |
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James Alton
Victor,
I think that it is good that you are concerned about securing your anchor well, they can sure do a lot of damage if they ever get loose in heavy weather. I am attaching a photo showing the wood block that our anchor wedges itself to when in storage. With tension on the chain it doesn't move around (or rock) at all. I think that you will have more of a challenge with the shape of the Ultra anchor. You would want any block that you added to contact against the widest part of the anchor that it can reach to be the most effective. Best of luck.
James
 -----Original Message-----
From: VICTOR MOLERO <victor.moleroxx@...> To: main@AmelYachtOwners.groups.io Group Moderators <main@amelyachtowners.groups.io> Sent: Wed, Feb 8, 2023 12:42 pm Subject: Re: [AmelYachtOwners] How to hold the anchor in place in deck James, I really appreciate your thorough description. My anchor is an Ultra 45 that fits quite well on top of the roller, but the shank moves sideways unless I put a lot of tension on the chain, and even then I don't think that it would stand well gale condition waves.
It would be great if you could provide some pictures of your solution to better understand the shape, size and position of the block.
Thanks again.
Best.
Víctor
SM314 Alendoy
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Hello Victor, I had the same problem with our Rocna.
I glued a piece of teak on the starboard side, about 1" x 2". 5" long. I used 3M 5200. I shaved the forward part so the chain or the anchor does not get stuck when I lift the anchor. I push the anchor against that flat piece of wood. Then I wrap a line really tight. Nothing fancy. I take that off when I am ready to anchor but in an emergency I can just cut the line with a knife. The anchor does not move any more when we sail. I would NEVER apply tension with the windlass. You'll break it. When I sail there is no tension on the chain from the windlass, I grab the chain with the hook and tie that line to a cleat. -- John Bernard "JB" Duler San Francisco Meltem # 19, Western Med |
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Thank you, James. The picture clarifies more. Best. Víctor
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Thanks, John. Your idea sounds like a simple and efficient solution. A picture would help. Thanks again. Best. Víctor SM314 Alendoy |
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Sorry, I won't be at the boat until April. I have no photos.
-- John Bernard "JB" Duler San Francisco Meltem # 19, Western Med |
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How is a bit of sideways movement a problem?
We di tie the anchor to a clear with a line supplied by Amel. |
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Matt, I am concerned about the chafing effect of the sideways movement. Best. Victor |
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I have stayed out of this discussion until now, but I will tell you what I know and what I believe. Amel installed a piece of line on most models including the SM and later that was intended to secure the anchor. I believe this was to prevent losing the anchor and chain on a passage. There is probably no way you can get it tight enough to stop all motion of the anchor. Some anchor roller installations done by Amel had a locking pin. These locking pins will save an anchor and chain, but certainly do not hold things very tight. I agree that you do not want a large load on the anchor/chain/windlass, BUT, if you have correctly serviced the windlass (regardless of brand) the gypsy will slip under heavy loads. For 11 years I snugged the anchor and chain to the windlass by tightening it with the windlass, sometimes until the gypsy clutch slipped. DON'T DO THIS if you have not serviced the windlass correctly by greasing the brake cones or you will wind up with a twisted key (actual photo below), or worse. Because I almost always have someone who does not believe this, I attached snippets from the Lofrans, Maxwell, and Lewmar Manuals, those being the brands installed on 90% of Amels since the SM.  Lofrans Manual:  Maxwell Manual:  Lewmar Manual: 
On Thu, Feb 9, 2023 at 9:49 AM VICTOR MOLERO <victor.moleroxx@...> wrote:
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Thank you very much, Bill. Quite illustrating. Víctor |
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rossirossix4
Hi Matt, On a somewhat related issue, the shank of the some anchors (ours is a 44 KG Rocna) can bounce around a bit and hit the lower part or the forestay/furler attachment to the deck--even if we slow things down. We attached about a foot long heavy duty split water hose to the forestay/furler base with zip ties. That helps to protect from any shank hits--I am not at the boat or I would include a photo. |
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If you would like to download the Amel Book Supplement File "Securing the Anchor on Deck All Models" Go to this webpage: https://preparetocastoff.blogspot.com/p/files-requested-by-amel-yacht-owners.html agree to the terms and then download Securing the Anchor on Deck All Models.pdf (it should be at the top of the list)
On Thu, Feb 9, 2023 at 12:42 PM VICTOR MOLERO <victor.moleroxx@...> wrote:
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Awesome! Thank you Bill. Victor |
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Chris Paul
I saw this idea years ago on a fishing boat. A wire strop was made up with an S hook and a rigging screw & secured around a strong point. See my diagram below. I have not done it yet but it is my intention to make one of these with a dyneema strop. Maybe a D-shackle would be better to use than an S-hook - but this is the concept. Not sure of dimensions but maybe 10mm shackle & rigging screw & maybe 6mm dyneema - all easy to get from chandlery.  Regards, Chris Paul SM #352 Glazig, Whangarei, NZ
On Friday, 10 February 2023 at 08:13:07 am NZDT, CW Bill Rouse <brouse@...> wrote:
If you would like to download the Amel Book Supplement File "Securing the Anchor on Deck All Models" Go to this webpage: https://preparetocastoff.blogspot.com/p/files-requested-by-amel-yacht-owners.html agree to the terms and then download Securing the Anchor on Deck All Models.pdf (it should be at the top of the list)
On Thu, Feb 9, 2023 at 12:42 PM VICTOR MOLERO <victor.moleroxx@...> wrote:
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Thank you Chris. Fishing boats always have interesting solutions. Victor |
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Any sideways movement it’s absorbed by the bow roller. Otherwise, the anchor is touching metal. The compression of the roller, windlass anchorage shackle, etc off pulling the anchor up tight is much worse than any chafe.
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