Mooring rope size

[Rayjive]

Can anyone advise me of the size of rope I need on a swing mooring to connect the boat to the buoy on a boat with 2218kg displacement? I intend using 3 plait nylon rope but I'm open to suggestions for better alternatives.

 

[VicS]

10mm (or 12mm) chain would be my choice.

 

[pikeyrm]

It would be different size depending on where it will be moored and what conditions it will be subject to.

 

[sailorman]

10mm (or 12mm) chain would be my choice.

on the East Coast rope is the norm, not chain. I would use as large a size as the cleats would accept

 

[Twister_Ken]

on the East Coast rope is the norm, not chain. I would use as large a size as the cleats would accept

+1, also on the basis that a thicker rope will be able to chafe more, before becoming critical.

 

[Sneaky Pete]

If it is a swinging mooring with just an eyelet on the buoy then I would use a rope and chain on a bridal set up rope coming from each of the bow cleats. If it has a pick up then as big as the cleat can take and over the bow roller if there is one and remember the belt and braces a piece of rope to stop the eyelet jumping off the cleat.

 

[SAMYL]

24 mm 3 ply spliced with hard eyes and reinforced plastic tube protectors and a swivel below the buoy.

 

[yodave]

I would check the breaking strain of the rope, and then I'd go up from there accounting for rough weather and chaffing.

FYI had an 18mm strop with a snubber on my east coast sheltered fixed mooring (5.5tonnes) for season one without any problems. Up sized in season 2 to 32mm with a wear sleeve hanging off a Hippo SB1 mooring buoy with 1x 18mm chain to the front, dual 18mm strops to 2 x 16mm chains to the rear, which is well OTT, but I have absolutely no problem sleeping at night even with gale force winds tearing across the land.

My view is that the difference in cost is maybe £20/30/40 but so what? How much do you stand to lose if the strop isn't up to the job?

Over spec your strop and get a good night's sleep.

 

[GrahamM376]

I used to use nylon but changed after many years to polysteel 30mm 4 strand + centre core, one over each roller. Lasts far longer than nylon and stronger.

 

[JumbleDuck]

The chap who services my mooring (which I own) supplies the strop, which he replaces every 2 or 3 years. It's chunky (22mm? 24mm?) braid of some sort. Luckily I have a nice big samson post on the foredeck which could take a Calmac ferry's mooring line without trouble.

 

[[70521]]

Can anyone advise me of the size of rope I need on a swing mooring to connect the boat to the buoy on a boat with 2218kg displacement? I intend using 3 plait nylon rope but I'm open to suggestions for better alternatives.

What is being used locally? Always a good indication.

 

[RogerLS]

Dart HArbour Authority require all craft on swinging moorings to use chain. Seems a sound policy. If worried by snatch you could use a chain hook and a rubber compensator or a length of stretch rope.