Obviously I don’t agree with this
http://www.themainsail.com/news/arti...98742342696324 well the first few lines anyway.
I suggest a 1/2 ton block, make a mould with ply wood. Mix up the concrete and put 2/3 layers of steel mesh for strength then a steel loop/eye attached to the steel mesh sticking out of the concrete for the chain. Pour in the concrete and allow a week to set before knocking the mould away.
Find the depth of your area you want the boat then add say 5 to 8 meters extra, use all 5/8 chain connected directly to the block eye (No swivel at this point because if the extra chain is on the bottom the swivel will not work efficiently) take the 5/8 chain directly to the main buff say a 90" buff. Then connect the chain via the swivel to the buff using 5/8 s/s shackles. So the buff is shackled at the top of the swivel and the chain is at the bottom.
For the rope that comes to the boat cleat, splice a s/s thimble and shackle that to the top of the swivel so the buff and the boat are the only objects moving around not the chain (creates less wear on chain).
Add a pick up buoy to the cleat rope for easy pickup. Also adding another rope with a s/s thimble and a shackle to the top of the swivel and a carbineer on the other end to the towing eye acts as a back up if the main rope fails, this back up should be a foot or so longer than the main rope.
We seize all our shackles with seizing wire and a cable tie.
A normal cost for our yard to lay a mooring like this would be about £1250.00 - £1500.00.
Not cheep but we have done 10 or so this year like that so obviously people trust experience of a boat yard.
We also drop all the chains to the seabed for the winter and leave a 1"+1/4 rope to the surface plus a small marker buoy this limits wear of the chain through the winter storms.
Hope this helps.
Oviously I dont agree with this
http://www.themainsail.com/news/arti...98742342696324 well the first few lines anyway.
I suggest a 1/2 ton concret block, make a mould with ply. mix up the cement and put 2/3 layers of steel mesh for strenth then a steel loop/eye attached to the steel mesh sticking out of the concret for the chain. pour in the cement and allow a week to set knock mould away.
Find the depth of your area then add say 5 to 8 meters extra all 5/8 chain connected directly to the block eye (No swivel at this point because if the extra chain is on the bottom the swivel will not work efficiantly) take the 5/8 chain directly to the main buff say a 90" buff. Then connect the chain via the swivel to the buff using 5/8 s/s shackles.
For the rope that comes to the boat cleat, splice a s/s thimble and shackle that to the top of the swivel so the buff and the boat are the only objects moving around not the chain (creates less wear on chain).
add a pick up bouy to the cleat rope for easy pickup. also adding another rope with a s/s thimble and a shackle to the top of the swivel and a crabianer on the other end to the towing eye actes as a back up if the main rope fails, this back up sould be a foot or so longer than the main rope.
We seize all our shackles with seizing wire and a cable tie.
A normal cost for our yard to lay a mooring like this would be about £1250.00 - £1500.00.
not cheep but we have done 10 or so this year like that so oviously people trust our experiance.
We also drop all the chains to the seabed for the winter and leave a 1"+1/4 rope to the surface plus a small marker bouy this limits wear of the chain through the winter storms.
Hope this helps.