The NEW way to do Halyards :: Boat Bimbles
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- čas přidán 27. 10. 2020
- A tapered Dyneema core halyard is the most expensive line on a dinghy. Get extra strength and long lasting halyards by using this soft shackle - diamond knot attachment.
Tapering a halyard and tack line reduces friction in hoists, but also leaves the final few inches susceptible to wear. Use this clever soft shackle and diamond knot attachment to do away with bowlines and bobbles.
This arrangement protects against premature wear and the diamond knot can be used in most situations instead of a bobble.
#MozzySails #BoatBimbles - Sport
I used this method for my NVG’s in Afghanistan. Awesome knot and tutorial.
Really interesting idea, being a climber as well as a sailor I have always used a bowline with a double overhand stopper before and after and that has never come undone but I can see the advantage of the sheilding
One adaptation of this is to make the soft shackle integral to the halyard so it can't be lost. Simply make the eye splice at the end of the halyard longer - then cut it and splice a loop in one end and a diamond knot in the other. That way you can't lose the soft shackle - it can't shake free if the halyard is inadvertently left flapping in the wind while rigging / derigging.
be good to see a video of that
That is brilliant and just answered a question I had for some one else as to how them made something on a 4x4 winch rope 👍🏻🤨🤩🤩🤩🤩
Great video, thanks very much! How long do you make the soft shackles as i'm guessing they just want to fit over the top of a main?
Have you tried a constrictor rope clutch for a main halyard. Or is it me during lock down unable to sail so having to bimble with the boat.
Looks neat.
The loop at the diamond knot, would that be stronger than a Brummel lock eye splice?
Why not lock just below the diamond knot, then bury it?
so that the none load carrying tail is on the outside near the diamond knot. That way it can act as a sacrificial chafe cover at the block / mast exit point.
Hi, I got a question. What type of dyneema do you use? It looks like it was really easy to "open" and work with.
Marlow D12 SK78, 2.5mm. It opens using a 4mm fid where normally at this diameter a pull fid would be only option
@@MozzySails Thanks. Where can I buy it? I'm using Gotti Compact 78 3mm (it's super durable but also very tight and stiff) and Robline Ocean 300XG 3mm ( similar to D12 but still not as nice to work with)
@@ukaszmaksymowicz4579 most UK chandlers stock it, and I think they will post to Europe. Try Rope4Boats.co.uk or sailingchandlery.com or ropelocker.co.uk
Tom, do you use this for the halyard on the 200? Does it not mean you can't get the main all the way to the top of the track? If you don't use it do you just use a conventional bobble / knot through a loop? Struggling with chafing on my halyard and wondered if there's a better way while still being able to get it to the top of the mast
Looks good but your method here relies on having access to both ends of the line. I'm keen to make this switch but is it possible to do so when the halyard is already rigged?
You can do something similar, but wouldn't be able to have the none load carrying tail cover the line for the first couple of inches.
It will be less breaking load
it would probably break at the taper, same as a normal eye splice (marlow say 100% line strength in D12). Essentially this is a regualr eye splice with a diamond knot tied in. Tying a bowline would be 20-30% line strength (again, quoting Marlow). However, from experience it is abrasion that kills the rope on dinghies.
The Diamond knot will weaken the line as much as a bowline would. Maybe adapting your idea so that you have Turks Head instead of a bobble?
I think this knot is stronger than a bowline, but it's not really about line strength. If it were, I'd up the line diameter. This is more a solution for chafe on tapered halyards or exposed dyneema. The doubled back dyneema adds a cover, and the removing the bobble means you don't have plastic 'pinching' on the line.
Also, don't forget that knots lose their strength where the single loaded line enters the knot and makes a tight radius turn. You then end up with a breaking load significantly less than line strength. Here, there are two lines entering the knot sharing the load, so the breaking load will be roughly doubled.
I have been deciding which way to go with my soft shackles. Instead of the diamond knot why not use a locked Brummel with a splice to make the eye. Then feed the soft shackle the eye.