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#1
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Keith,
I was thinking of using about 125' of 5/16" chain, then at least another 150' of 3/4" 3-strand nylon rope on a CQR, for the primary anchor, then about 125' of 3/8" G4 chain and the same rope attachment for a Luke Fisherman storm anchor, and haven't decided about whether to use chain with the 150' 3/4" 3-strand nylon rodes for a Bruce and a Danforth. Opinion ? Cordially, Courtney Keith wrote: I can't answer about the chain, but if you go up a size in Nylon you'll have two effects. One, it won't be as "stretchy" to absorb shock, and two, you can't carry as much. If it's too stiff, it can actually yank the anchor out of the bottom in severe conditions. Of course, it'll always be stretchier than chain! -- s/v Mutiny Rhodes Bounty II lying Oriental, NC WDB5619 |
#2
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I still think the 3/4" is overkill for the chain you're using. How much does
your boat weigh, or what's the length? I'd stick with whatever Chapman's recommends for both chain and nylon. Remember you want that stretchiness in the nylon portion. If you're anchoring out with just chain, you should rig a nylon snubber for any decent winds/tides. -- Keith __ I'd kill for a Nobel Peace Prize. "Courtney Thomas" wrote in message ... Keith, I was thinking of using about 125' of 5/16" chain, then at least another 150' of 3/4" 3-strand nylon rope on a CQR, for the primary anchor, then about 125' of 3/8" G4 chain and the same rope attachment for a Luke Fisherman storm anchor, and haven't decided about whether to use chain with the 150' 3/4" 3-strand nylon rodes for a Bruce and a Danforth. Opinion ? Cordially, Courtney Keith wrote: I can't answer about the chain, but if you go up a size in Nylon you'll have two effects. One, it won't be as "stretchy" to absorb shock, and two, you can't carry as much. If it's too stiff, it can actually yank the anchor out of the bottom in severe conditions. Of course, it'll always be stretchier than chain! -- s/v Mutiny Rhodes Bounty II lying Oriental, NC WDB5619 |
#3
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My boat's displacement is 20,000 lbs, unloaded. It's LOA is 41'.
I'm not arguing, but if snubbers are used why must the rode also be similarly springy ? That is, if 5/8" snubbers are used, why should the rode necessarily be the same ? Being ignorant here, it seems to me that if the 5/8" snubbers gave way, then the 3/4" rode would be a sort of stronger backup. I should've already clarified my primary motive in all this, which is storm security. For normal anchoring, I'm not much concerned and would probably opt for the easiest ground tackle to deploy for the situation at hand. Cordially, Courtney Keith wrote: I still think the 3/4" is overkill for the chain you're using. How much does your boat weigh, or what's the length? I'd stick with whatever Chapman's recommends for both chain and nylon. Remember you want that stretchiness in the nylon portion. If you're anchoring out with just chain, you should rig a nylon snubber for any decent winds/tides. -- s/v Mutiny Rhodes Bounty II lying Oriental, NC WDB5619 |
#4
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On Wed, 08 Sep 2004 20:18:52 -0500, in message
Courtney Thomas wrote: My boat's displacement is 20,000 lbs, unloaded. It's LOA is 41'. I'm not arguing, but if snubbers are used why must the rode also be similarly springy ? That is, if 5/8" snubbers are used, why should the rode necessarily be the same ? The more stretch there is in the whole system, the lower the transient loads will be because the stretch can absorb energy. A relatively short length of 5/8 snubber will not stretch nearly as much as a full length of 5/8 rode. I should've already clarified my primary motive in all this, which is storm security. For that I would concentrate on chafe protection and reducing the transient loads transmitted to the anchor. Ryk |
#5
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Got it !
Thanks Ryk. Courtney Ryk wrote: On Wed, 08 Sep 2004 20:18:52 -0500, in message Courtney Thomas wrote: My boat's displacement is 20,000 lbs, unloaded. It's LOA is 41'. I'm not arguing, but if snubbers are used why must the rode also be similarly springy ? That is, if 5/8" snubbers are used, why should the rode necessarily be the same ? The more stretch there is in the whole system, the lower the transient loads will be because the stretch can absorb energy. A relatively short length of 5/8 snubber will not stretch nearly as much as a full length of 5/8 rode. I should've already clarified my primary motive in all this, which is storm security. For that I would concentrate on chafe protection and reducing the transient loads transmitted to the anchor. Ryk -- s/v Mutiny Rhodes Bounty II lying Oriental, NC WDB5619 |
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