Join Date: Jul 2007
Location: Northport, NY
Thanked 103 Times in 103 Posts
Rep Power: 13
Re: Mooring pendants - Yale Double Braid Maxi-Moor or Dyneema?
Uncle Bob makes excellent points. A mooring has to be sized... ie every single component to the anticipated max load.
Begin by computing the windage (wind force) with the wind on the beam (boats do yaw).
You'll want a safety factor. 2,3, 4 or more times the wind load for the line, the shackles, the swivel the chain. and of course the mooring.
For normal conditions you will not need such heavy components. But since you can't change your mooring... get one for storm loads. What you can change is the line from the chain/float/ball to your cleats. This can be designed for storm loads and used in hurricane season.
Better safe than sorry. Engineering design always includes a "factor of safety".
pay attention... someone's life depends on it