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Re: Passagemaking-Under-Power Digest, Vol 2, Issue 5

BA
Bob Austin
Sat, Jan 8, 2005 11:48 PM

Absolutely agree.

I am sorry if I gave the impression that I would use a plate anchor hook or a chain hook as a stopper on chain  for a sea anchor rode.  I would not.  What is recommended is that the chain attatch to the boat--and that it take the chafe.  Since there is plently of rode--and the loading different for a sea anchor than a ground anchor--I don't see the need for a snubber on a sea anchor either.  This brings to mid several problems with sea anchors--how one "adjusts" the lenght of line/chain let out, how one secures the chain on the boat, and how one leads the chain or line off the boat, to allow a fair lead, with no chafe or undue strain on the pulpit/anchor roller etc.  Chafe is a major problem with any system such as this.

The chain hooks I have used were made in the US, and were beefy enough that I have never seen distortion.  On the other hand, a chain hook is a disposiable item.  The galvanizing often is poor and I end up throwing them out, rather than regalvanizing.

As far as disengaging, when the chain is slack--not so if there is enough catenary (slack chain) in the chain between what ever chain stopper and the boat.  Also either the plate type of chain stopper or chain hook allow one to mouse the throat with small stuff, so that the chain will not come loose.  I have done this in critical times.

I have not used a Devil's claw--partly because they are not readily available--and partly because I don't entirely trust them--and this latter may be poorly founded opinion.  They are both welded and bent rod--and I have been of the opinon that forged material is stronger.  I may well be wrong.

Regards,

Bob Austin

Absolutely agree. I am sorry if I gave the impression that I would use a plate anchor hook or a chain hook as a stopper on chain for a sea anchor rode. I would not. What is recommended is that the chain attatch to the boat--and that it take the chafe. Since there is plently of rode--and the loading different for a sea anchor than a ground anchor--I don't see the need for a snubber on a sea anchor either. This brings to mid several problems with sea anchors--how one "adjusts" the lenght of line/chain let out, how one secures the chain on the boat, and how one leads the chain or line off the boat, to allow a fair lead, with no chafe or undue strain on the pulpit/anchor roller etc. Chafe is a major problem with any system such as this. The chain hooks I have used were made in the US, and were beefy enough that I have never seen distortion. On the other hand, a chain hook is a disposiable item. The galvanizing often is poor and I end up throwing them out, rather than regalvanizing. As far as disengaging, when the chain is slack--not so if there is enough catenary (slack chain) in the chain between what ever chain stopper and the boat. Also either the plate type of chain stopper or chain hook allow one to mouse the throat with small stuff, so that the chain will not come loose. I have done this in critical times. I have not used a Devil's claw--partly because they are not readily available--and partly because I don't entirely trust them--and this latter may be poorly founded opinion. They are both welded and bent rod--and I have been of the opinon that forged material is stronger. I may well be wrong. Regards, Bob Austin