Common Mooring Methods Used For Ships

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Mediterranean mooring : For this type of mooring, a pre-calculated position is determined and approached using engine movements. The bow initially is made to cant towards the berth and the starboard anchor is let go in that positions. After this the engines are run astern and the port anchor is let go at the designated spot. The vessel falls astern and swings to starboard. Thus vessel is held by both the anchors as it approaches the quay. Stern lines are then passed. Moorings are kept tight by using the anchor cables. The positioning of vessel is such that mooring is completed with around four shackles on each anchor. Often tide is used to control drift of the vessel towards quay while positioning it by heaving or paying out on one of the anchors.



Running Mooring : This manoeuvre takes relatively short duration compared to Mediterranean mooring and offers more control of the vessel. The vessel’s starboard anchor is let go at a position approximately four to five shackles from the final position of the bow and around 9 shackles paid out while moving ahead on engines. Then as she falls astern with the tide the port anchor is let go and the starboard anchor is heaved on to five shackles. This method restricts the swinging room and reduces the load on windlass.
Standing Mooring : This is practiced during cross winds. As the vessel is stopped the port anchor is let go and with the tide around 9 shackles are paid out. The starboard anchor is let go and simultaneously port anchor heaved on. Thus the port anchor is kept on 4 shackles being generally the flood anchor and starboard on five as it is the ebb anchor. This vessel takes longer duration and provides less control over the vessel . The load on windlass is more as compared to running moor.

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