Jimmy Green Marine recommendations:
- Select hot dipped galvanised or marine grade stainless steel shackles according to their application – ensuring that maintaining similar metal to metal contact throughout your mooring system can also be beneficial, particularly for underwater applications: Stainless Steel in contact with Galvanised Steel
- Select rated shackles for all load critical applications
Jimmy Green Marine stock shackles with a guaranteed load rating – tested shackles are much stronger than commercial pattern shackles and the manufacturer certificate is reassuring
Shackles can be used to connect mooring warps to mooring chains and for long term attachment of any part of a mooring set up to a suitable anchorage point. Connection by shackle can be extremely beneficial for avoiding troublesome chafe points when setting up a permanent mooring arrangement.
Moorings for yachts or motor boats can be broadly divided into:
- Mooring Alongside – against e.g. a pontoon
- Mooring Stern to - against e.g. a harbour wall/pontoon
- Mooring Bow or Stern to – held off a beach or rocky shoreline
- Mooring Fore and Aft - between two fixed points e.g. pile moorings
- Swinging Mooring – secured to a single point e.g. a buoy anchored to the sea bed
Mooring Alongside – Splice a hard eye (thimble) into the pontoon end of a designated made to measure mooring warp. Attach the hard eye to the allotted pontoon cleat with a shackle.
The other end can be left long for making off on a deck cleat or finished to the correct length with a soft loop so that the splice drops neatly over the cleat into place.
Mooring Stern to, Mooring Bow or Stern to – Finish the warp with a spliced hard eye to attach the shore end of the warp to e.g. a bollard, a fixed chain or ring, convenient rock in similar fashion to mooring alongside.
Short lengths of chain can be used to loop around the available anchorage point and shackled to the spliced thimble eye.
S/S springs can be used to provide extra shock absorption on secondary (double up) lines. Connect the spliced thimble eye to the spring with a Mooring Shackle.
Mooring fore and aft – a yacht can be secured to the rings on pile moorings with shackles connected to mooring warps finished with a thimble eye splice.
Swinging Mooring – shackles should be utilised for joining all the component parts of a swinging mooring e.g. the riser chain, mooring buoy, rope strop.
Parts of a Shackle ➤