[Rhodes22-list] Anchors--French Decoder Ring Version

[Bill Effros]

Alain,

Great attached piece.  Thanks.

Here is the part I don't understand, re: chain:

"By the way, do not rely on the friction of the chain on the bottom to 
hold your yacht: it does not exceed a few kg or lb, except if it meets 
rocks, coral patches etc.! Otherwise, we would never need an anchor, 
would we? As we'll see in the next chapters, having a fair length of 
chain lying on the bottom is not intended to increase the holding power 
via the chain friction, but instead to keep the tension on the anchor 
horizontal when the rode tightens."

If an anchor chain section on the bottom weighs less than the force of 
the wind on the boat, won't that anchor chain section be lifted off the 
bottom at the exact same angle as the rope section?

And if an anchor chain section lying on the bottom weighs more than the 
force of the wind on the boat, won't that anchor chain section hold the 
boat so that the boat cannot drive the flukes of the anchor into the bottom?

Bill Effros



Alain POIRAUD wrote:
> Hi to all..
>
> “Michael is one of the best sailors on this list, however he is dyslexic”
>
> No problem for me, I’m used to speak various foreign languages and I
> understand quite well Michael’s language.. and, as usual, I will answer in
> “Franglish”.. :-)
>
> Talking about “rode”. There is a very interesting and highly technical Web
> page talking about “Tuning an anchor rode”.. made by another Frenchman, and
> also a good friend of mine, Alain FRAYSSE: 
>
> http://alain.fraysse.free.fr/sail/rode/rode_b.htm 
>
> Yes, you have to use some chain on the rode.. as it is a perfect mean to
> avoid shaffing of the rode onto the aggresive sea bottoms.. but I’m 100 %
> against an all chain rode.. If using an all chain rode, you MUST at least ad
> an efficent snubber. 
>
> I’ve also written a full book on the subject:  “Tout savoir sur le
> mouillage” also available in German “Besser Ankern” and we are just in the
> process of going through an “English coder ring”.. :-) I hope the English
> version will be available at the end of this year.. 
>
> I will be more than pleased to continue to write my coments on this forum.
> Sometime my theories are radically different than the good old beliefs.. but
> I’ve practiced them during 13 years of full time living (and anchoring)
> aboard.. (and I’m still alive :-)) 
> Its tooks a wile to have some “news” ideas accepted.. but for example, it is
> well accepted now that holding is much more related to the surface area
> buried in the sea ground, than to the weight of the anchor.. Not always easy
> to come with different theories.. but I know it will only be a question of
> time... 
>
> See you soon..
>
> Alain
>
> --
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>
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