[Rhodes22-list] anchoring

[Rik Sandberg]

ok fine Bill, whatever

Rik

Ayn Rand was a prophet - - it isn't my fault



Bill Effros wrote:
> 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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