[Rhodes22-list] anchoring

[Bill Effros]

Rik,

At great expense, and with considerable effort, I secured 3 20 foot 
lengths of 3/8 chain to 3 trees in my yard.  I then suspended my 4000 
pound boat from the chain.  The 3 chains each created a line, straight 
as an arrow.  What is your point?

My point is that you don't need chain to pull a 2 1/2 lb anchor; and 
that the design of the anchor is such that with nothing more than a rope 
and the wind, you can drive that anchor into many bottoms with enough 
force so that it will hold a 4000 lb. boat in place in most weather 
conditions.

Bill Effros





Rik Sandberg wrote:
> Bill,
>
> You like no chain. Others do, here's why.
>
> Chain is heavy, you're right. Take a 20 foot chain (5/16 or 3/8) and go 
> out in your yard (I assume you  have a yard). Tie one end of the chain 
> to a tree. Now go to the other end of the chain and try to pull that 
> chain out so it makes a straight line. Bet you can't.
>
> As the boat pulls on a chain or partial chain rode, it has to lift the 
> weight of the chain as the rode tightens. This slows the boat 
> considerably before the rode becomes taut. A heavy chain rode makes 
> quite a good shock absorber.
>
> I'd agree that feeling the bottom and setting an anchor is surely 
> tougher with a heavy chain rode.
>
> And yeah, if one is just dumping his chain on top of his anchor, I guess 
> he's likely to get the results he deserves.
>
> Rik
>
> Ayn Rand was a prophet - - it isn't my fault
>
>
>
> 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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