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Double anchor?
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S&J View Drop Down
Admiral
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Joined: 30 August 2014
Location: Perth WA / Med
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Points: 1371 		Post Options Post Options   Thanks (0) Thanks(0)   Quote S&J Quote  Post ReplyReply Direct Link To This Post Posted: 07 July 2024 at 08:43
I use a chain hook with two snubber lines which are about 12m.  These go over the port bow roller and one is tied off at the port midships.
This allows the nylon line 7-8m to stretch.  I think this rope will stretch 20-20% so a shirt (3m) line will have limited stretch.
The theory is that this absorbs the snatch on the chain which could be transmitted down to the anchor.
The second line was intended as a bridle but it doesn't really work so I just use it as a backup in case the first snaps.
I did have my first snubber snap in difficult conditions and the windlass was under considerable strain until I got a replacement on.  The rope snapped due to chafe against the fittings on the bow roller so I now use a hosepipe to mitigate this.
I do have a shorter less elastic snubber that I use for lunchtime stops and it doubles as a line to secure the anchor when at sea.
H458 #159 Primal Mediterranean cruising
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Pzucchel View Drop Down
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Joined: 13 March 2020
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Points: 659 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Pzucchel Quote  Post ReplyReply Direct Link To This Post Posted: 07 July 2024 at 09:03
This configuration is very interesting indeed. I have shorter nylon lines,  and i tried to convince myself the elasticity should come from the chain weight and the "catenary" shape...I don't observe chafe on my lines,  but admittedly I always change a bit the length to distribute the damage...
Hanse588#55
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Pzucchel View Drop Down
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Joined: 13 March 2020
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Points: 659 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Pzucchel Quote  Post ReplyReply Direct Link To This Post Posted: 07 July 2024 at 09:56
Originally posted by S&J S&J wrote:

I use a chain hook with two snubber lines which are about 12m.  These go over the port bow roller and one is tied off at the port midships.
This allows the nylon line 7-8m to stretch.  I think this rope will stretch 20-20% so a shirt (3m) line will have limited stretch.
The theory is that this absorbs the snatch on the chain which could be transmitted down to the anchor.
The second line was intended as a bridle but it doesn't really work so I just use it as a backup in case the first snaps.
I did have my first snubber snap in difficult conditions and the windlass was under considerable strain until I got a replacement on.  The rope snapped due to chafe against the fittings on the bow roller so I now use a hosepipe to mitigate this.
I do have a shorter less elastic snubber that I use for lunchtime stops and it doubles as a line to secure the anchor when at sea.

Btw,  after more reflection i do understand why you had chafe that i don't see: because you're using the mid cleat, the line elasticity is before the roller on the bowsprit, so the elongation itself creates the friction. In my case,  the élongation happens in the water,  and the lines are essentially static on the bowsprit roller. 
Hanse588#55
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Mark_J1 View Drop Down
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Points: 690 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Mark_J1 Quote  Post ReplyReply Direct Link To This Post Posted: 07 July 2024 at 19:03
On Grey Goose (400e) I always take snubber lines to the mid-ship cleats and use rubber mooring compensators on the snubber lines. That seems to damp the tendency to swing very well for me.  Works best with snubbers going directly to the chain & not via anchor roller or bow cleats. Gives some swell adjustment angle too if needed. 

Mark
Hanse 400e "Grey Goose" Hull #31
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