OCIMF_Mooring_Equipment_Guidelines_(Second_Edition)

Section 3.0

Mooring Arrangements and Layouts

3.1 PRINCIPAL OBJECTIVES

The objective of a good shipboard mooring arrangement is to provide and arrange equ.ipment to
accomplish the following:

• provide for an efficient mooring pattern at conventional piers and sea islands, as described io

SecLion I,

• facilitate safe and quick mooring, ulI1Dooring and line-tending operations with minimum demand
  on manpower.


• enable safe and efficient mooring at anticipated non-conventional terminals such as SPMs and
  MBMs.


• facilitate safe and efficient handling of lugs.
  
  
  • permit safe and efficient conduct of other customary tanker operations such as hose-handling
    and mooring alongside of fuel barges.
  
  
  • allow safe and efficient speci fie anticipated operations sucb as ship-to-ship transfers or canal
    uansits.
  
  
  • provide for emergency situations such as excessive winds requiring doubling of Lincs. emergency
    towing of di sabled ships, or shipboard fIres requiring the ship to be towed off the berth quick.Jy
    without shipboard assistance.
  
  
  
  

3.2 REQUIREMENTS AT PIERS AND SEA ISLANDS

The primary concern in t.he shipboard mooring arrangement is suitability for mooring at conventional

piers and sea islands, since this is the requirement most commonly encounter ed. The principles for

an efficient and safe mooring operation at these term inals are covered i.n Section I. These principles

apply to ships of all sizes and may be summarised as follows:

• Mooring arrangements should be symmetrical.


• Breast li ne.s should be as perpendicular as possible 10 rhe longitudinal centre line of the ship.


• Spring lines should be as parallel as possible to (he longitudinal cenLre line of t.he ship.


• Mooring lines in the same service shooJd have about the same length between the vessel's wiuch
  and the jelly mooring points.

In addition to the foregoing principles, the following general guidelines should be kept in mind in

laying out the mooring equipment:

• Keep mooring areas as clear as possible.


• Locate mooring operations as far forward and aft as possible,