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  • Lets talk about docking, aka berthing and mooring a ship.

  • Now we are almost year 2020 and yes we are still securing ships by ropes.

  • There's more advance method like magnetic plates or mechanical levers but overall, 99%

  • of ships from big to small are still using ropes.

  • Mechanical moorings are inferior to ropes because they're just not as elastic, which

  • is important to counteract the tide and waves.

  • So let start from the top when the ship approach the port, the local maritime pilot climbs

  • onboard the ship to assist us in docking.

  • They have the local knowledge of the area, they know their own port the best, where's

  • the shallow water, dangerous areas, the tide , the draft.

  • What they do is similar to valet parking.

  • And the bridge team as usual do their job, slowly and safely bringing the ship to the berth

  • While all that's happening up on the bridge,

  • The Forward and After mooring parties ,already standing by at the bow and stern of ship,

  • starts to prepare the mooring lines and hydraulic equipment.

  • Now small boats are able to dock pretty fast,

  • but for big ships it takes hours to bring the ship alongside.

  • Tugs are always available to assist.

  • They can either push on the ship's hull or have a tug line attached to the ship's bollards to pull.

  • The main reason for using tugs is because when ship is docking at slow speeds, its hard

  • for such a big ship to move or spin itself around.

  • Some ships might use up to 4 tugs

  • Certain sections of the ship are reinforced so that the tugs can push on it without damaging

  • or denting the ship, its usually around the both sides bow shoulders and stern quarters.

  • Same thing applies when pulling, tugs can only be pulled where there are bollards built.

  • So In order to pass the big mooring lines onto land, We first send a smaller line called

  • the heaving line with a monkey fist.

  • The monkey fist is pretty heavy so we make sure it is clear before throwing it, avoid

  • hitting anyone

  • Usually a forklift is used to move the heavy mooring lines, but in some places, they don't

  • even use a forklift, straight up muscle power.

  • Ofcourse it is much safer and efficient if you have one.

  • Each of these mooring lines have an eye that goes onto a bollard.

  • It all seem pretty primitive, throwing things here and there, but why fix something if its

  • not broken?

  • Sailors have been doing this for thousands of years.

  • So These drums adjust to make fast the ropes.

  • We do this for all the lines, unwind and roll out the moorings

  • so that the shore workers can pull them onto a bollard, then tighten to secure line.

  • Oh!

  • The mooring winch is the same one used in anchor system, we switch between the two with

  • a simple clutch.

  • If you haven't yet, check out my anchor video for detail explanation of how the hydraulic

  • system works.

  • One by one the lines roll out and roll back in, its one of the more labour-intensive work

  • because sometimes you have to use man power to pull the lines on the deck.

  • As the officer in charge, my duty is to use the radio and relay the captain's orders

  • from the bridge to give commands to the crew working the lines.

  • All at same time, making sure they everyone is working in a safe manner and..just not

  • get hurt, this is especially important for snap backs and bights, because think of the

  • size of ropes, a jerk or jump of the rope has the force of a canon ball, its often fatal.

  • And you might be thinking why is there so many lines in different direction?

  • Well here we are using the standard mooring arrangement, known as the 422.

  • There are tons of other less common mooring arrangements out there, such as the Baltic

  • moor, Running moor, Standing moor, Single point moor, Multi buoy moor and Ship to Ship

  • Moor.

  • But!!!

  • In this video we will only cover 422 the standard and most commonly used one by large cargo

  • ships.

  • Its 2 Spring lines that runs along the ship's longitudinal in reverse, to hold forward and

  • backwards movement.

  • 2 breast lines horizontally to hold horizontal forces.

  • 4 Head and Stern lines holding the bow and stern in.

  • Because of the effects of tide and cargo loading, The ship's crew will have to keep checking

  • the tightness of the ropes and adjust accordingly.

  • And finally, to cast off, just slack off the lines and shore workers will lift the eye

  • of the mooring ropes off the bollards.

  • As always, if you got any questions, comment down below join the discussion.

  • Give this video a thumbs up and ill see you guys next time.

Lets talk about docking, aka berthing and mooring a ship.

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B2 moor docking stern tide forklift hydraulic

Docking a Mega-Ship | Mooring and Berthing Explained! | Life at Sea

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    吳易晉 posted on 2018/08/04
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