Originally Posted by Ballsnall
wtmf is correct in how spring lines should be set. The main purpose of spring lines is in the name. They act as springers to absorb shock loads from fore & aft forces and also from laterally away from the dock
. The purpose of all dock
lines is to hold the vessel in position but springers also have the advantage of being able to accommodate a wide range of tidal movement without affecting the vessels relationship with the fixed dock. You would set the springers to hold the vessel in the exact position and then set bow & stern lines loosely more as a backup should a stringer fail.
Generally, springers are made of larger diameter mooring line
, approximately the length of the vessel or slightly more and with a large eye on one end, or for vessels using the same dock are made to exact size with eye each end and make regular docking
a breeze. They are also the perfect line for bringing a vessel into and off of the dock lines in a cross breeze.
Hi, I would tend to disagree that springers should be of a larger diameter line, I believe that much like a snubber on an anchor
chain, they should be of a size that allows a longitudinal elongation to absorb the energy of the boat
surge, I use nylon line one size smaller than I would for a dock line. I have to admit that I keep my boat
on a mooring
and only utilize docks occasionally.