[Public-list] Anchor and Rode

[John Birch]

Actually no, its not the anchor chain that puts her nose down, but rather 
it's the two long 9s on her - as per the Rush/Bagot Treaty of 1817 limiting 
to one 18 pounder ; ) 9+9 = 18 ; )
Arrrrrrrrrrrrrr avast Mr Punsenby sound the beat to quarters .... ; )

Seriously, From Boat US:
"Chain, used alone or in combination with rope, offers great benefits: it 
decreases the angle of pull on the anchor allowing it to set and hold more 
effectively, it's unaffected by chafe from rocks or sharp surfaces on the 
bottom, its weight forms a curve that absorbs shock loads in heavy weather, 
and, in the case of all-chain rode, requires much less scope-roughly 
half-for the same holding power as rope.

All chain is not created equal, however. Due to the inconsistent quality and 
often substandard galvanizing of many imported chains, we recommend that you 
avoid chain from foreign manufacturers. Proof coil is the most commonly used 
chain for anchor rodes. Made from low-carbon steel, it is identified by 
"G-3" imprinted on each link, and is adequate for most marine applications. 
BBB chain is slightly stronger than proof-coil, and has short links allowing 
a snug fit into windlass gypsies. BBB is also preferred by many cruisers 
using all-chain rode. Hi-test chain is made from higher carbon steel that 
has been surface-hardened. It has a higher strength-to-weight ratio than 
proof coil and is favored by the weight-conscious, as it can reduce the 
weight in the bow by up to 30% without sacrificing strength. "

So its actually closer to 200 Lb than 300.

George wrote:
"Are the sheep running lose in Canada? ;-) "

Bob Kirk wrote:
"I can just see John Birch sailing along,  looking like a bloodhound with 
his nose to the ground
with that extra 300# or so in the bow :=)   In fairness, he anchors in
deeper water than we ever see in the Bay."

Cheers,
The Bloodhound, eh ; )


----- Original Message ----- 
From: "George Dinwiddie" <gdinwiddie at alberg30.org>
To: "Alberg 30 Public List -- open to all" <public-list at alberg30.org>
Sent: Saturday, March 18, 2006 11:09 PM
Subject: Re: [Public-list] Anchor and Rode


> John Birch wrote:
>> Yo baaaaaaaaaaaaaaaaaaaaaad ....
>
> Are the sheep running lose in Canada? ;-)
>
>> From: "Robert Kirk" <isobar at bcpl.net>
>>> Your configuration looks good to me. In the Chesapeake, with a mud/sand
>>> bottom and shallow anchorages,  a  Danforth is ideal, and 7/16th looks 
>>> ok.
>>> If I was rafting up with a bunch of boats, maybe I'd pull up to Mike
>>> Lehman with his thicker line, but that's not a real problem.
>
> I'll agree that a good Danforth style anchor and 7/16" line is OK.  I've
> used 3/8" and found that the stretch actually helped keep the anchor
> from pulling out.  It's hard to handle, though, and I've gone to 1/2".
> (That was actually a Christmas present for Gail, years ago. :-)
>
>>> There is also
>>> no need for any chain at all, cause if you  do the trig  you see that 
>>> the
>>> chain doesn't add anything and is just extra weight.
>
> I don't think so.  I think a little chain helps hold the anchor down.
> Not when it's blowing really hard, perhaps, and the the rode is straight
> and hard.  But in normal conditions when you're on relatively short
> scope to fit in an anchorage, it's an important help.  Even 6 feet makes
> a difference.
>
>>> At 06:12 AM 3/15/06 -0800, Peter Staehling wrote:
>>>> I have no experience with the A30 yet, but I would
>>>> guess that a 20 lb Danforth, 20' of 5/16" chain, and
>>>> 100' of 7/16" nylon would be about right for most
>>>> conditions here.
>
> I would suggest 200'.  When the wind comes up, 100' isn't going to be
> enough.  At 7:1 scope, 100 feet is only 14 feet vertically, and that's
> to the bow, not the water depth.
>
> If I'm anchoring a raft with the Danforth (copy that came with the
> boat), then I'll tend toward 10:1.  I've held a raft of 15-20 boats in a
> stiff breeze for a hour or two until we got out a couple more anchors.
> I put every bit of my 200' out thought the water was probably only 9 or
> 10 feet.  It held like a rock, though I probably added 10' of rode due
> to stretch.  That rode was like a solid bar of iron.  You just can't
> beat scope!
>
>  - George
>
> -- 
>  ----------------------------------------------------------------------
>   When I remember bygone days                         George Dinwiddie
>   I think how evening follows morn;            gdinwiddie at alberg30.org
>   So many I loved were not yet dead,           http://www.Alberg30.org
>   So many I love were not yet born.
>                'The Middle' by Ogden Nash
>  ----------------------------------------------------------------------
>
>
>
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