Why is my anchor upside down? - SailNet Community
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post #1 of 18 Old 11-07-2011 Thread Starter
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Why is my anchor upside down?

I have a delta anchor on a al chain rode with a swivel between the anchor and chain. It stows on a bow roller and I have a maxwell windless.

I used to be able to just press the up button and it would smoothly come up onto the bow roller. Now it always wants to come up upside down. I have to use a boat hooks to flip it around before pulling it up. Its awkward leaning over the pulpit with the boat hook while reaching to the foot switch with one foot.

I can't figure out what would make the anchor hang one way or another. Does anybody have any clues?
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post #2 of 18 Old 11-07-2011
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I guess you're just unlucky. lol

If you're usually motoring when getting off the hook you can try backing up and "dipping" the anchor. That will usually get a Delta pointing the right direction, assuming it doesn't turn again the last few feet up to the roller.

I used to have the same problem, but a swivel did the trick for me.

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post #3 of 18 Old 11-07-2011
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I understand several of these designs tend to rotate as they come up Manson included. A swivel would not stop this merely stop the chain and warp from rotating.
The answer is apparently a special type of swivel shaped like a shallow v which rotates around the centre. This settles so the apex is up and the anchor is then in the correct position.
It can be hazardous particularly solo in a cnfined anchorage trying to right the anchor position.
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post #4 of 18 Old 11-08-2011
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Chris ... any idea who makes or sell them ?

I have noticed that our Bruce seems to prefer coming up backwards. A quick flick with boathook sorts it out but it can be somewhat tedious. On the old boat neither our Rocna nor older CQR seems to have the problem.

I'm not a fan of swivels. Intended to remove from Bruce setup but havn't done so yet. Will be doing so shortly and will be interested to see whether that has any effect.

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post #5 of 18 Old 11-08-2011
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Haven't had that problem with either my current delta, or my previous cqr.

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post #6 of 18 Old 11-08-2011
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I have not had problems with swivels, but others have.

Force Anchor Swivel - Critical Failure - Cruisers & Sailing Forums

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post #7 of 18 Old 11-08-2011
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Quote:
Originally Posted by jackdale View Post
I have not had problems with swivels, but others have.

Force Anchor Swivel - Critical Failure - Cruisers & Sailing Forums

I keep checking the thing and it appears to be in good condition with no sign of any wear or tear but the horror stories are out and about.

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post #8 of 18 Old 11-08-2011
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This is obviously a problem related to magnetic variance. We've all seen the compass roses on our charts that show true and magnetic directions, with the caveat: +var 5'/yr, or something like that. The earth's magnetic field is continually shifting, and your anchor is now being twisted by this force just enough to have it come up into the chocks upside down, whereas before the variance was insufficient for this to happen. When people used rocks or cast bronze anchors this was not a problem, but with iron or steel, you are probably not the only one with this issue, though few like to admit it. In Australia, they have similar problems, but they turn the opposite direction when it happens. (Wombat can confirm this for you if you want to ask him.) Because the earth is flatter at the southern end, the earth's core is closer to the surface there, so the problem is actually worse there than in N. America. You could try anchoring in a less magnetically active area and see if that would help. Anchors can also be degaussed, which may be a simpler solution. Good luck!
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Last edited by paulk; 11-09-2011 at 11:26 PM.
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post #9 of 18 Old 11-09-2011
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"Anchors can also be degaussed"

They can deguasse a full size battleship down in Norfolk.lol

According to your synopsis I guess them high priced stainless hooks are immune to this upside down issue.
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Quote:
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According to your synopsis I guess them high priced stainless hooks are immune to this upside down issue.
Only if they are 316.

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