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Stinkpotter
Master Marine Consultant

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Djibouti
9081 Posts
Response Posted - 01/07/2011 :  11:25:44  Show Profile
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by Prospector</i>
<br />For the chain - I measured distance from bow to waterline (4' +/-) and then multiplied by 7... Now when I go to anchor, I just take the depth off the sounder and multiply by 7 for a 7:1 scope. I'm lazy, and this accentuates my laziness.<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">Ummmm... Chris... It's the "scope" calculation where you're supposed to add the freeboard at he bow to the water depth before you multiply... (Should only take a few seconds of your time. ) I've never heard of that formula for selecting a chain length, but whatever gets you past about 20' will do. Length of the boat is the most popular guideline. I wouldn't want much more than that, because in shallower water, I want a decent length of nylon out to absorb some shock.
Edited by - Stinkpotter on 01/07/2011 11:28:26
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redviking
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USA
1771 Posts
Response Posted - 01/09/2011 :  06:32:58  Show Profile
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"> I wouldn't want much more than that, because in shallower water, I want a decent length of nylon out to absorb some shock.
<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">

Know how to rig a snubber?

sten
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Stinkpotter
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Djibouti
9081 Posts
Response Posted - 01/09/2011 :  09:08:46  Show Profile
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by redviking</i>
<br />[quote]Know how to rig a snubber?<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">In theory... Don't have one for chain on board.
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Voyager
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USA
5377 Posts
Response Posted - 01/09/2011 :  20:58:10  Show Profile
I use a snubber on my dockline.

In practive, I've found that there are occasionally sea conditions that "thump" the anchor rode, so I bend on the dockline to the rode using a double fisherman's knot (two interlocking figure-8 knots), and cleat the dockline to both bow cleats.

It effectively reduces or eliminates the thumping. I worry about the knots giving way however, so I also secure the anchor rode to the bow.
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DaveR
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USA
2015 Posts
Response Posted - 01/12/2011 :  13:39:20  Show Profile  Visit DaveR's Homepage
An interesting article on anchoring from The Don Casey Library
[url="http://"]http://www.boatus.com/boattech/anchorin.htm[/url]
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Stinkpotter
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Djibouti
9081 Posts
Response Posted - 01/12/2011 :  16:08:00  Show Profile
Darn you Don Casey... Now I know I need <b>29'4"</b> of chain--I'll hafta buy some more... How many links of 1/4" chain make 4'4"?

(Never mind.)
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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.