Dock Line Basics; Bow & Stern Lines; Breast Lines; Spring Lines - Regal 3760 Owner's Manual

DOCK LINE BASICS

Most skippers use dock line
terminology fairly loose but there
is more to the basics than just bow
or stern lines. There are several lines
that can be secured to the bow and
stern and depending on their
direction and use, can be called
other names. Remember that
"forward" and "aft" refer to the direction that a spring
line runs from the vessel, and not where it is secured on
board.
BOW & STERN LINES
There is only one true bow line. It is secured to the forward
cleat and run forward along the dock to prevent the vessel
from moving to the stern. The stern line leads from a rear
cleat to a piling or cleat on the dock astern of the vessel.
This line keeps the boat from moving ahead. For small
vessels these are the only lines needed for normal wind
and current conditions. If located in a tidal environment,
keep slack in the lines.

BREAST LINES

These lines are attached to the bow and stern that lead to
nearly right angles from the center of the vessel to the
dock. They help keep larger vessels from moving away
from the dock, or are pulled in to help people board the
vessel. Bigger vessels may use bow or quarter breast lines.

SPRING LINES

Most small boats use two spring lines although it is
possible to have four. They are called the after bow spring
and forward quarter spring.
Bow springs are secured at the vessel's bow area. Forward
spring lines lead forward from the boat to the dock and
control movement sternward. After springs stem aft from
the vessel, and stop movement ahead. Spring lines are used
to prevent movement in a berth, ahead or astern. They are
really useful in controlling the effects of a real active tidal
surge. Spring lines are useful where fenders need to be
kept in place against piles.
TYPICAL PIER MOORING
2.
1.
=FENDER
TYPICAL PILING MOORING
1. 2 & 3.
BOAT MOORING
Most boats can be secured to a dock using four lines. The
after bow spring is crossed with the forward quarter spring
and secured to individual dock cleats or pilings. This
ensures longer springs and can be snugged up tighter for
more efficient tidal control. Remember, if you only have
one piling available, position the vessel so this point is
opposite admidships. Run both spring lines to it. These
lines will be shorter but still useful.
6
Chapter 6
3.
4.
1. Bow line
2. After bow spring
3. Forward quarter spring
4. Stern line
4.
1. Bow line
2. After bow spring
3. Forward quarter spring
4. Stern line