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 Catalina/Capri 25/250 Sailor's Forums
 General Sailing Forum
 Anchor Chain		  New Topic  Topic Locked
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A Devries
Deckhand

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21 Posts
Initially Posted - 05/16/2007 :  20:29:44  Show Profile
I would like to add chain to our new 14lb Delta anchor as we plan to anchor out in Lake Erie and a possible trip to the North Channel this summer. Our other anchors are 13lb danforths on 125'of 3/8 rode and 4'of vinyl coated chain, I have two questions.
Electric galvanized or hot dipped galvanized which is the least likely to rust in freshwater?
Is 40' of 1/4" chain what I should add to our 100' of 3/8 rode.I'm after an anchor system that will set well in most bottom conditions.
Thanks Albert
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Dave Bristle
Master Marine Consultant

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Djibouti
10005 Posts
Response Posted - 05/16/2007 :  21:33:46  Show Profile
The "ideal" rode allows 7-1 scope for windy or choppy conditions--the more chain, the less scope is necessary up to a point (like 5-1 for all chain). 7-1 is generally considered a standard for a rode with chain approximately the length of the boat. So, 140' can be considered best in only up to 17' of water (factoring in the height of your bow). That's why many people carry 200' of rope with something like 25' of chain. But it depends on your expected worst case.

Now, in a crowded, protected anchorage, you probably won't have room to use 7-1, and may only go with something like 4-1, but you want to be prepared.

Most anchor chain is hot-dipped... I haven't seen electroplated. In fresh water, hot-dipped should last longer than you do.
Edited by - Dave Bristle on 05/16/2007 21:44:04
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djn
Master Marine Consultant

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USA
1561 Posts
Response Posted - 05/17/2007 :  07:10:53  Show Profile
Think about the amount of time our chain actually spends in the water and you realize that rust is not a problem. CHeers.
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Bill Holcomb
Admiral

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USA
769 Posts
Response Posted - 05/17/2007 :  08:01:20  Show Profile
Hi Albert,

Dennis has the right perspective. Either choice should be ok for chain.

However, for something other than a lunch break, just about all the anchor manufactureres have been saying that the length of chain should be approximately the same as the length of the boat for boats like ours. So, 25 feet instead of four.

The only time I ever really drug anchor was about fifteen years ago one night when a lot of wind came in on us and the anchor chain was too short. I knew that a storm might reach us in the night. So, posted an anchor watch with one person awake and keeping track of where we were and where other boats were. We almost drug down on a nasty rock reef.

Bill Holcomb - C25 Snickerdoodle #4839
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JimB517
Past Commodore

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USA
3285 Posts
Response Posted - 05/17/2007 :  11:26:50  Show Profile  Visit JimB517's Homepage
I use 50 feet of 5/16 chain on my primary anchor (from Home Depot)

40 feet of 1/4 chain on my secondary anchor

15 feet of 1/4 chain on my stern anchor

All backed up with 150 to 200 feet of 1/2 nylon.

But then I anchor out often and sometimes in crowded anchorages, sometimes 50 miles from the mainland in exposed coves. Almost always single handed.
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Leon Sisson
Master Marine Consultant

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USA
1893 Posts
Response Posted - 05/18/2007 :  22:19:27  Show Profile  Visit Leon Sisson's Homepage
I'd go with about a boatlength of hot dipped chain. I consider electroplating too thin for marine use.

-- Leon S.
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.