[C320-list] Anchoring tips?

Robert E. Sloat resloat at comcast.net
Fri Jul 9 07:11:42 PDT 2010


That is what the US Coast Guard says and is a common question on the US CG 
Captain license exam.  You have 3-4 feet above water for the attachment 
point for a C320.  On a seriously large ship this distance can become a 
large number like 10 to 30 feet which can really affect the scope 
calculation number.


Bob Sloat
Savannah Hull 894
----- Original Message ----- 
From: <sail-ability at sympatico.ca>
To: "Catalina List" <c320-list at catalina320.com>
Sent: Thursday, July 08, 2010 6:00 PM
Subject: Re: [C320-list] Anchoring tips?



The Canadian Yachting Association (CYA) coastal cruising course anchoring 
protocol is that the depth is taken from the bow roller thus increasing the 
scope. Not a good idea to use the bow roller or the windlass as an 
attachment point for the anchor rode, in fact Maxwell advises against it. 
The bow cleats are the hard points.

Cheers

JohnM

#574

> Date: Thu, 8 Jul 2010 14:38:55 -0700
> From: jbrown5093 at yahoo.com
> To: C320-List at Catalina320.com
> Subject: Re: [C320-list] Anchoring tips?
>
> That's what is taught in the ASA course. Add the distance from water to 
> deck in calculating scope. On another note, I've read that you should not 
> use the bow roller when anchoring but always use a bridle to both cleats 
> or at least tie off on a bow cleat. The bow roller is less strong and it's 
> main purpose is to store and lower the anchor. Any thoughts?
>
> Jim Brown
>
> --- On Tue, 7/6/10, Dave Anderer <danderer at udel.edu> wrote:
>
> From: Dave Anderer <danderer at udel.edu>
> Subject: Re: [C320-list] Anchoring tips?
> To: C320-List at catalina320.com
> Date: Tuesday, July 6, 2010, 7:05 PM
>
> The below is how I've always done it.  Since the idea of scope is to lower
> the angle of the rode, and increase the cantenary effect, this makes sense
> to me.
>
> On Tue, Jul 6, 2010 at 6:43 PM, John Frost <john at frostnet.net> wrote:
>
> > Following the same idea, since the amount of line from the bow roller to
> > the
> > water line changes dramatically with wind, I have always heard to count 
> > the
> > depth as from the bow roller down to the bottom and then let out the 
> > scope
> > (5:1 or 7:1) for that depth. That way you have the right angle even in a
> > blow.
> >
> > For example if you were in 10 ft of water and your bow roller is 6 ft 
> > above
> > the water line, treat the depth as 16 ft and let out scope accordingly 
> > (80
> > ft for 5:1).
> >
> >
> >
> >
>
>
>
>
 




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