Performing “Mooring Operation” is essentially a very crucial task that seafarers have to secure on a ship or vessel’s deck.
Technically speaking, mooring operation may seem to be a simple procedure, however, there are considerable dangers integrated with it. Being a seafarer, the so-called death traps on vessels and how seamen have lost their lives during a mooring operation is indeed very familiar. Basically, a mooring operation indicates to any stable structure to which a ship may be secured. Such operation includes wharfs, quays, piers, jetties, mooring buoys, and anchor buoys. To be more exact, “mooring” actually refers to the act of attaching or securing a vessel or ship to a mooring.
Rather than using temporary anchors, such moorings are extremely more important. Substantially, considering the fact that moorings have the more holding capacity and are convenient. As well, a mooring operation can cause only less damage to the marine environment. Infrequently, anchor mooring is also being utilized to hold or secure floating docks in place. There are actually different kinds of mooring operations in ships:
- Swing mooring
- Pile mooring
- Travelling mooring
- Mediterranean mooring
- Canal mooring
Pile moorings are beams, bars, or poles compelled into the bottom part of the waterway, with tops raised on the water level. Ships then tie or connect mooring lines to 2-4 piles, basically to fix position between those heaps or piles. This type of mooring is unusual elsewhere but are in fact very common in New Zealand. In moorings, there are basic types of permanent anchors being used:
- Mushroom anchors are the most typical anchors that suit best for softer seabeds such as sand, mud, or silt.
- Dead weights are known as the simplest anchor type.
- Pyramid anchors are also recognized as Dor-Mor anchors that work in an upside-down position with the apex indicating down at the bottom such when they’re set up.
- Screw-in moorings are the modernized or contemporary type of mooring method.
- Multiple anchor mooring systems employ 2 or more anchors that are light-weight temporary style.
Such is also called single-point or just simple moorings. Swing moorings are known to be the simplest and most prevailing type of mooring in ships. It is integrated of a single anchor below the waterway with a rode. It could be a chain, cable, or a rope, which run to a float above the surface. The float permits a ship to find the rode and safely link to the anchor. Such anchors are noted as swing moorings due to the reason that a ship attached to this type of mooring actually swings in a circle whenever changes take place in the direction of the wind or tide changes.
A travelling mooring is a kind of mooring operation used to ensure a small boat at sea. Basically, in order for such boat to be reachable at all tides. Performing a travelling mooring involves the following procedures:
- The settling in of a heavyweight to which a pulley wheel or block is hooked up to the place where the sea is adequately deep whenever low tide.
- Trying to fit a pulley wheel or block to a rock or securing a point over the high tide mark
- working on a heavy rope with a marker buoy between the blocks.
A canal mooring is performed when securing a narrowboat overnight. Such boat is capable of passing through narrow locks and UK canals. Essentially, this kind of mooring is conducted when there is off boat excursions. Or, the extended line-up for accessing canal lock. Canal mooring has many types that include mooring pin, mooring ring, mooring hook, and mooring bollard.
This mooring is also recognized as the Tahitian mooring or med mooring. It is a mooring technique which takes place by mooring a ship to the port or pier. When using the Mediterranean mooring, the ship sets a brief anchor off the port or pier. Then, it approaches the port at a perpendicular angle. After which, the ship runs two lines to the port. The benefits of using Mediterranean mooring is that more ships can be linked to a fixed length of a port as they only occupy their width of pier instead of their length. However, the disadvantages of performing Mediterranean mooring is that it is more likely to cause collisions. As well, it is not practical or effective in deep water or in locations with larger tides.