Open moor
Vessel anchored with both anchors leading ahead.
Both the anchors remain 1 point on the bow
Procedures
Approach the anchorage with wind or current on one bow.Weather anchor or upstream anchor is let
go on the run (1).The headway continued and cable is laid up 1/3 rd of the final length of thecable.The
second anchor is let go (2).First anchor snubbed at the gypsy.The vessel brings-to on her weather cable. It
gradually grows taut towindward.Bow develops a rapid swing into the stream or wind.Both the anchors
are veered.Finally the anchors are one point at each bow.
Standing moor, ordinary moor, dropping moor, straight moor
Vessel required to moor with bridge along the dotted line. Stream ahead. Port anchor-5 shackles, stbd
anchor-4 shackles.
Procedure:
Head to stream or wind. When both are present, head to one has stronger effect. With sufficient headway,
take vessel to position 1.Position-1 is roughly 5 shackles plus half ship's length beyond line AB. Let go
port anchor. The vessel drifts downstream, render port cable to nine shackles, the sum of two lengths. She
is brought up on her cable. Then the starboard anchor is let go at position-2.Vessel then moves to the
position 3 ,by rendering or veering the starboard cable and heaving in four shackles on the riding cable.
Engines may be used to reduce stress on the windlass
Running moor, flying moor
Vessel required to moor with bridge along the dotted line.Stream ahead. Port anchor-5 shackles, starboard
anchor-4 shackles.
Procedure:
Head to stream or wind. When both are present, head to one has stronger effect. Let go starboard anchor
on run, when vessel is 4 shackles and half of ship's length (1).The cable is rendered as the vessel moves
upstream. The cable is not allowed to be tighten, as bow will cant to starboard. The cable is rendered or
veered 9 shackles and vessel moves to position-2. In position-2, port anchor is let go. The vessel moves
stern. Five shackles weighed on lee (starboard) cable and five shackles veered on riding cable. The vessel
is then brought up on her riding cable at position-3.
Advantages of mooring
Vessel occupies little swinging room. Vessel turns almost to her length about stem. Scopes can be pre-
adjusted for the prevailing strength of wind or stream. Scope of each cable is estimated in the same way
as single anchor.
Disadvantages
Lee anchor has no value to ship if headwind increases or vessel drags. Risk of getting a foul hawse.
Special precautions
Maintain a constant watch to prevent foul hawse. Determine foul arc and clear arc. Vessel should always
swing to clear arc on each tidal change. Use engine to give vessel correct sheer. Keep eye on the weather.
Know the times of tide change.
Baltic moor
Employed alongside a quay. Used when construction of the berth is no sufficiently strong enough to
withstand ranging in bad weather. Can be employed for berthing a vessel in an onshore gale wind.
Procedures:
For a average size merchant ship, a 25-30mm wire is passed from the after ends on the poop, along the
offshore side, outside and clear of everything. Offshore anchor is cockbilled
A man is send overside on a chair to secure the wire with the anchor, preferably at the shackle. The aft
end of the wire is sent to a warping barrel, ready for heaving slackwire. When the stem is abreast the
position of the quay where the bridge will be positioned, the anchor is let go. The vessel is still on
headway. About half a ship's length of the cable, the cable is surged and then snubbed. The wire is hove-
in aft. The onshore wind will drift the vessel to the berth. The scope of the cable and the wire is adjusted
and veered slowly until the ship is a/side. Distance of ship, length of cable and wire must be considered.
Mediterranean moor
Method of securing a vessel stern to the berth. Both the anchors leading ahead to hold the bow in
position. The approach should preferably be made with the berth on port side. The starboard anchor is let
go about two ships length from the berth(1).The vessel continues to move ahead. Starboard helm is
applied and the cable is veered. The engines are then put astern and the port anchor is let go (2).As the
vessel comes astern, transverse thrust swings the stern to port towards the berth. Stern lines are sent away
