Regal 3300 Owner's Manual page 142

CHAPTER 5
The bow and stern lines should be relatively at a 45 degree angle with the
dock. The stern line can be attached to the near-shore quarter cleat, but
will work more efficiently to the offshore quarter cleat. The longer line
will allow the boat flow with the tide with less time checking the vessel.
Dock Line Sizing
Most dock lines today are made of nylon, either of twisted rope or
braided core and cover. The most often used material is nylon because
of its stretching abilities absorbing shock loads. It is chafe resistant for
extended life and is easier on bare hands.
The line's size varies with the vessel. Normally, a vessel in the 20' to
40' boats will use 1/2" diameter nylon lines. Larger yachts use 5/8"
and 3/4" diameter nylon lines. Smaller boats can use 3/8" nylon lines.
Dock lines need to have the strength to hold the vessel and have enough
density to resist chafing. They shouldn't be too heavy that they lose
their shock-absorbing capabilities. Use the right size line for the vessel
since a line to large for the boat will pull hard against the vessel since it
won't be forced to stretch. If the line is too small for the vessel, there
is no margin for wear and chafe when under strain.
N OTT: Consult your Regal dealer for appropriate lines and
chafing protection.
Securing Lines
When mooring your boat, make sure the dock lines are secured at both
ends. Depending on your situation you may need to loop the eye splice
of the dock line around a piling. Sometimes the mooring line will lead
down sharply from the piling to the deck cleat. Loop the eye splice
around the piling twice to keep it from being pulled up off the pile.
Pull the line through the looped eye if the mooring line is too small to
go around the piling twice or too small to fit over once.
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