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Old 03-05-2021, 16:35   #736
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Re: Videos of Anchors Setting

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Interesting test with the pennant by I have to ask myself, why bother?
The negatives, far outweigh any benefits.

It would seem to me that a braided wire pennant would not have the long term resistance to abrasion , more susceptible to getting the pennant jammed under a cleft, than solid links .
Easier to damage in that stuck scenario

In the towing industry, towing cable does not have the lifespan of anchor chain and that cable is hopefully not being dragged along the bottom as you would do with an anchor pennant.

Larger fishboats with drum cable rodes on the bow, go that direction for cost and weight savings but also because they really dont anchor that much, being generally tied up between openings and seasons .

If the increase in holding power is less than, say 20%, then I agee - not worth it.

But, if some situation exists where holding power is boosted substantially, then I could see it being worthwhile, even if only used intermittently for storms.

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Old 04-05-2021, 05:14   #737
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Re: Videos of Anchors Setting

I was told the opposite: chain links biting into the seabed provide holding power. Sometimes the chain comes up with links filled with clay which seems to indicate some truth to that...
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Old 04-05-2021, 05:30   #738
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Re: Videos of Anchors Setting

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I was told the opposite: chain links biting into the seabed provide holding power. Sometimes the chain comes up with links filled with clay which seems to indicate some truth to that...

That definitely seems plausible, but at the same time, unless the anchor is buried very deeply, or you have a very long scope deployed (or a moderate scope in very deep water), it's unlikely that there's enough chain touching the seabed in a hard pull / blow to contribute any useful holding.
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Old 04-05-2021, 05:35   #739
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Re: Videos of Anchors Setting

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I was told the opposite: chain links biting into the seabed provide holding power. Sometimes the chain comes up with links filled with clay which seems to indicate some truth to that...
Exactly! Big ships depend far more on the weight and surface area of large link chain for added resistance.

I still think it is an interesting test to see if the pendant burries easier, but abrasion resistance should be the first priority and strands of stainless wire would not pass my comfort level
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Old 08-05-2021, 09:34   #740
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Old 22-05-2021, 09:31   #741
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Old 05-06-2021, 15:03   #742
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Re: Videos of Anchors Setting

Picked up a Genuine Bruce 30kg/66lb anchor on Craigslist.

I now posses Bruce anchors in 5,15,20, and 30kg sizes and will conduct holding power tests of each.

Many claim that this design's performance suffers in the smaller sizes.

Stay tuned.....

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Old 12-06-2021, 07:01   #743
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Old 12-06-2021, 08:16   #744
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Re: Videos of Anchors Setting

I wonder if Panope will test C-links one day for us?

Thank you for the anchor videos Panope! I think there awesome. And they helped me make the right buying choice for my newer anchor.
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Old 14-06-2021, 03:26   #745
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Re: Videos of Anchors Setting

Sam,

a fellow metallurgist called Vyv Cox tested various C-links and concluded the Crosby was the best. Others unreliable. I see this study has been up-dated by his son Owen (Connectors – Cox Engineering )but for some reason Owen has not included the Crosby in his testing.
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Old 14-06-2021, 05:02   #746
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Re: Videos of Anchors Setting

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Sam,

a fellow metallurgist called Vyv Cox tested various C-links and concluded the Crosby was the best. Others unreliable. I see this study has been up-dated by his son Owen (Connectors – Cox Engineering )but for some reason Owen has not included the Crosby in his testing.
Andrew
Thank you SatlyMetals - I’ve went with Crosby. I’ll look at your link this morning.
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Old 14-06-2021, 07:37   #747
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Re: Videos of Anchors Setting

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I wonder if Panope will test C-links one day for us?

Thank you for the anchor videos Panope! I think there awesome. And they helped me make the right buying choice for my newer anchor.
Glad to have helped, Sam.

We should leave the testing of C-links to people with the proper hydraulic test equipment like Cox Engineering.

I'll stick with ropes, chains and mud.

Steve
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Old 14-06-2021, 08:35   #748
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Re: Videos of Anchors Setting

Sam,

The point about the Crosby links is that they are for industrial purposes and have to stick to all the US safety standards. C-links that you find in a chandlery could have come from anywhere (many from China) and do not have to meet the same strength standard as Crosby. Their sizes are for US chain so if you have US chain, then fine, if not you will find the size for 8mm chain is a bit of a tight fit but with some persuasion it will work. The Crosby link for 10mm chain is OK. I have found that after a few years the galv on adjoining chain links will wear off sacrificially so what i do is to give the Crosby link 2-3 coats of a Zn galv spray before fitting it and then a couple of coats after you have hammered the hell out of it during the fitting.
Andrew
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Old 14-06-2021, 10:28   #749
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Re: Videos of Anchors Setting

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Glad to have helped, Sam.

We should leave the testing of C-links to people with the proper hydraulic test equipment like Cox Engineering.

I'll stick with ropes, chains and mud.

Steve
That’s awesome you replied!

Thanks again for all the videos you make. I’m definitely a fan of yours!

Sam
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Old 14-06-2021, 10:31   #750
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Re: Videos of Anchors Setting

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Originally Posted by SaltyMetals View Post
Sam,

The point about the Crosby links is that they are for industrial purposes and have to stick to all the US safety standards. C-links that you find in a chandlery could have come from anywhere (many from China) and do not have to meet the same strength standard as Crosby. Their sizes are for US chain so if you have US chain, then fine, if not you will find the size for 8mm chain is a bit of a tight fit but with some persuasion it will work. The Crosby link for 10mm chain is OK. I have found that after a few years the galv on adjoining chain links will wear off sacrificially so what i do is to give the Crosby link 2-3 coats of a Zn galv spray before fitting it and then a couple of coats after you have hammered the hell out of it during the fitting.
Andrew
Thank you Andrew - I’ll be giving my Crosby link a few coats too. Thanks also for the explanation!

Sam
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