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How much anchor chain?


smiles bernard
 

Hi there
My older (not super) Maramu came to me with 50m 12mm chain

I plan to cruise the North Atlantic with a slim chance of also going further across the Pacific.

Ideally I’d like 100m chain but the expense and hassle of change and finding the right chain for my gypsy abroad in the canaries has got me thinking about splicing octiplat instead

I’d be interested to hear others chain /rode strategies


Many thanks in advance

Miles

Maramu 162


greatketch@...
 

Miles,

If I was equipping Harmonie from scratch, I'd likely go with 100m of chain, although I'd stay with the 10mm chain we have.  But we bought her with 60m of chain spliced to 60m of line.  So far, in cruising the East coast of the USA and the windward islands of the Caribbean, we have yet to deploy all 60m of chain.

On my old boat I had a similar setup, and there were times anchoring in Hawaiian waters I deployed all the chain--and most of the line--anchoring in almost 15m of water.

I figure I can anchor in nearly 10m of depth (@ a scope of 7) without the splice touching bottom, so shifting to all chain hasn't really been a priority.  I might change my mind when our cruising ground includes deeper anchorages of the South Pacific, but on the other hand Harmonie has been around the world twice with her current setup, so it can't be too bad!

Something to consider, is that an extra 50m of 12mm chain will add almost 200kg to the bow.  That's a LOT.

So...  I haven't got an absolute recommendation for you, and likely haven't told you anything you haven't already thought of.  It would be easy to find someone to make an absolute statement that 100m of chain is "required" and also you'll be told that what you have is fine.

From an anchoring perspective, 100m of chain would be better, from a sailing performance perspective, the extra weight in the bow is a significant downside. I don't think either choice is obviously wrong, just a matter of priorities.

Bill Kinney
SM160, Harmonie
Great Guana Cay, Abacos, Bahamas
(where we are always anchored in less than 3.5m of water!)


Alan Leslie
 

We had 70m of 10mm when we bought Elyse, which wasn't enough.
We replaced it with 100m of 10mm ISO Maggi Aqua 4 chain in 2014.
Crusing in the Pacific that is only just enough.
When I replace it again, I will get 125m, there'a plenty of space in our anchor locker.
Cheers
Alan
Elyse SM437