Simpson Lawrence gypsy not matching chain - Page 4 - SailNet Community
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post #31 of 36 Old 2 Weeks Ago
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Re: Simpson Lawrence gypsy not matching chain

Quote:
Originally Posted by capta View Post
Obviously, we all use snubbers to minimize the stress on our anchor tackle, but that wasn't really this discussion.
The mention of using a snubber I thought directly related to your point of catenary minimizing shock load on an anchor rode.


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Originally Posted by capta View Post
Please explain why you think stronger chain makes any difference if the chain comes tight between the boat and anchor. No chain anyone can ever carry on any boat (even a ship) is going to be strong enough to hold the vessel outright. You have a better chance of the chain not breaking with more weight than strength, IMO.
As for higher wind speeds, one would hope that the vessel's operator would let out more scope to add more catenary.
I never said stronger chain makes a difference in the way you state. I said only that the weight of 3/8 vs 5/16 chain does not have a significant effect on catenary and shock.

Regarding more scope, once you reach about 7-8/1 scope you are reaching the point of diminishing returns and adding more realizes almost no benefit. In really strong winds, in my experience, too much scope will allow a much wider arc for the vessel to sail at anchor which I think increases stress on the anchoring system.

Finally 5/16 HT is rated stronger than 3/8 BBB (yes I'm aware of the difference in how they're rated and other implications) but is lighter, keeping weight out of the ends of the boat. As a very, very secondary benefit, it's also cheaper than 3/8 BBB.
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Re: Simpson Lawrence gypsy not matching chain

I would expect a downward sales trend for bbb over the last few decades.
...but i have no info to back that up...
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Re: Simpson Lawrence gypsy not matching chain

Shock absorption and cantenary...

Its not much above 20knots when my chain is tight. Maybe its 22, 25...whatever. my guess... i can not physically pull in chain at that point.
At that point, its all snubber. I usually tie on 20ish ft of 1/2" 3-strand snubber.
At that load, chain strength is not a factor.
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Re: Simpson Lawrence gypsy not matching chain

Thanks for that information. Good idea to remove the gypsy and take it to the store.
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Smile Re: Simpson Lawrence gypsy not matching chain

Thanks everyone for this discussion. Very informative. I think I'll be switching my G4 3/8 to BBB 3/8.

Anyone want to buy 200' of brand new G4 3/8?
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Re: Simpson Lawrence gypsy not matching chain

And reading all this - l think I'll need to lengthen the snubber line as well. I think I only have about 10'
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