[Rhodes22-list] anchoring

[JbTek]

That makes sense.
 I'm ditchin my chain, I hate the weight.
Jb
----- Original Message ----- 
From: "Bill Effros" <bill at effros.com>
To: "The Rhodes 22 Email List" <rhodes22-list at rhodes22.org>
Sent: Tuesday, September 16, 2008 10:42 AM
Subject: Re: [Rhodes22-list] anchoring


> Herb,
>
> How long ago did you take the class?
>
> If you look at older West Marine catalogs they had diagrams of anchor
> rode showing "catenary curves" in "taut" anchor rode explaining that the
> weight of the chain pulled the anchor parallel to the bottom.  Then, one
> year, they explained that their own diagrams were nonsense, and that the
> anchors were designed to be pulled at a 45 degree angle to the bottom,
> and that the notion of "scope" had no validity if the chain could change
> the angle of pull.
>
> I just looked again.  The catenary curve diagrams and explanation are
> gone.  But the chain lying on the bottom diagram is back, along with the
> straight 45 degree angle of scope.
>
> The recommendation has changed from a flat 6 feet of chain, to 1 foot
> per waterline foot, to the current recommendation of 65 feet of chain
> tied to 200 feet of  rope.
>
> The explanation varies from "bottom abrasion" to "Shorter scope."
>
> BUBBA MEISAS! (As Stan's Grandmother would say.)
>
> There is no bottom abrasion if your rode floats. -- It never hits the
> bottom.  It never gets dirty except for picking up seaweed.
>
> Scope is scope.  The angle is the same whether it is chain or rope.
>
> Dumping 65 feet of chain on a bottom just 8 feet below; never setting
> your anchor, and then wandering around within a 150 foot circle unable
> to determine if your anchor is set or dragging, makes no sense at all.
>
> If you don't have a windlass you don't use the anchor because it's too
> difficult to retrieve and never reliably sets.
>
> Get a $100 2 1/2 lb. guardian.  Try it on an all rope rode.  Deploy it;
> retrieve it; learn to flake the rode; store the whole shooting match
> under the cockpit seat.  Then ask the CG guys to explain to you, again,
> why they recommend what they recommend.
>
> BE
>
>
>
> Herb Parsons wrote:
> > Bill will continue to say this is nonsense, and I'm not going to say
> > he's wrong. I AM going to say I think he's wrong. The coast guard
> > captain's class I took went over this, and disagrees with him. Sometimes
> > CG folks continue to do things based on "tradition", but I think in this
> > case, they knew what they were teaching.
> >
> > Bill Effros wrote:
> >
> >> Rob,
> >>
> >> You need chain if your anchor is so heavy you can't pull it up by hand.
> >> Then you need a windlass.  The windlasses destroy rope -- they work
best
> >> on chain.  Everybody makes a lot of money by suggesting that you anchor
> >> better if you have a chain rode, but that is nonsense, and the enormous
> >> weight of the chain in the bow totally throws off the balance of boats.
> >>
> >> In the process, people start drawing diagrams and providing pseudo
> >> scientific explanations that make absolutely no sense when you start to
> >> think about them.
> >>
> >> Then somebody comes up with the 22 feet of chain on the 22 foot boat
> >> rode rule.  Which also makes absolutely no sense.
> >>
> >> A modern anchor is not like a cinderblock or an engine block.  It does
> >> not just sit on the bottom, it digs in like a railroad spike, and is
> >> designed so it can be easily released by changing the angle of the rode
> >> from the surface.  Adding weight does not help it in any way.  Modern
> >> anchors are designed to be  pulled at specific angles -- mostly around
> >> 45 degrees -- which is what the 7:1 scope accomplishes.  Chain sitting
> >> on the bottom defeats the angle of the scope relative to the anchor.
It
> >> is counter-productive.
> >>
> >> If you want more weight on your anchor, get a heavier anchor.  But
there
> >> is no need to do so.  A 2 1/2 lb guardian anchor, properly set, will
> >> hold you in place forever.  Your rope rode will withstand far more load
> >> than the fittings on your boat.
> >>
> >> Bill Effros
> >>
> >>
> >> Lowe, Rob wrote:
> >>
> >>
> >>> Bill,
> >>> So why does everyone (well, most everyone) suggest using chain on the
> >>> rode? - rob
> >>>
> >>>
> >>> -----Original Message-----
> >>> From: rhodes22-list-bounces at rhodes22.org
> >>> [mailto:rhodes22-list-bounces at rhodes22.org] On Behalf Of Bill Effros
> >>> Sent: Tuesday, September 16, 2008 10:59 AM
> >>> To: The Rhodes 22 Email List
> >>> Subject: Re: [Rhodes22-list] anchoring
> >>>
> >>> Ben,
> >>>
> >>> In order to set the anchor you must put tension on it.  This pulls the
> >>> rode taut.  When there is no wind or current, the rode will lie flat
on
> >>> the bottom, or float to the surface if it is a floating rode.  But it
is
> >>>
> >>> not holding the boat in place.
> >>>
> >>> What most people call "dragging the anchor" is usually "dragging the
> >>> chain".  If you fail to set your anchor -- which you will fail to set
> >>> properly if you never draw the rode taut -- you can drag the chain all
> >>> over the place, without ever properly setting the anchor.  If you draw
> >>> the rode taut and properly set the anchor it just won't drag.
> >>>
> >>> A very small anchor can be used to hold a very large boat in place if
> >>> the anchor is properly set.  It is much easier to set an anchor with
an
> >>> all rope rode.  The chain portion of the rode does not change the
angle
> >>> of pull.
> >>>
> >>> Bill Effros
> >>>
> >>>
> >>>
> >>>
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> >>>
> >>>
> >>>
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> >>
> >>
> >>
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