Source for Cruising Dyneema

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dunedin

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Unfortunately I have discovered that the cover has worn on my Liros Dyneema Plus main halyard. Just 4 years use (10k miles) but the outer has parted.
This means replacing nearly 50m of otherwise good rope. 12mm so not cheap. (Anybody want a couple of c.20m sections of used 12mm Dynamic Plus?)

The rigger is checking for any sharp edges, but seemed to be from around where the stopper is on when fully hoisted - in spite of moving the wear point and end for ending twice.

Two questions
(a) Any longer lasting alternative to Liros Dynamic Plus (dyneema core is essential for our boat and this application) - though this Liros has generally been excellent in every other role on board (sheets and other halyards) ?
(b) Any other suggestions beyond Jimmy Green Marine (who are generally great) to source from ?

Thanks
 
Chiara’s slave said:
No customs applied to ours, you wouldn’t have known it was overseas tbh. The halyard is on the boat, or I’d put up a photo of their handiwork.
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Our halyard would be heading for Eur 400 - so would assume would need to be sold by them ex-VAT and then pay UK VAT to courier before delivery. Done plenty of times, but does delay things a little.
 
Have you asked the rigger for a price? So long as I was happy with the colours he had in stock they weren't hugely different to online ordering once you added shipping and any splices etc.
 
Would it be worth considering double-braid dyneema for a system that is going to be pulling a heavily loaded line over a 180 degree bend.
 
benjenbav said:
Would it be worth considering double-braid dyneema for a system that is going to be pulling a heavily loaded line over a 180 degree bend.
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Not sure what the advantage of that would be over crusing Dyneema - which has a straight dyneema inner which minimises stretch.
Failure seems to have been near the clutch, not at the masthead (which would have been a non issue, as could have simply moved rope along a metre).
 
dunedin said:
Our halyard would be heading for Eur 400 - so would assume would need to be sold by them ex-VAT and then pay UK VAT to courier before delivery. Done plenty of times, but does delay things a little.
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Dunno, mine was only 6mm to replace a wire one, it was about 160, for grand prix style, we wanted to go small yet low stretch. We haven’t used it yet.
 
dunedin said:
Unfortunately I have discovered that the cover has worn on my Liros Dyneema Plus main halyard. Just 4 years use (10k miles) but the outer has parted.
This means replacing nearly 50m of otherwise good rope. 12mm so not cheap. (Anybody want a couple of c.20m sections of used 12mm Dynamic Plus?)

The rigger is checking for any sharp edges, but seemed to be from around where the stopper is on when fully hoisted - in spite of moving the wear point and end for ending twice.

Two questions
(a) Any longer lasting alternative to Liros Dynamic Plus (dyneema core is essential for our boat and this application) - though this Liros has generally been excellent in every other role on board (sheets and other halyards) ?
(b) Any other suggestions beyond Jimmy Green Marine (who are generally great) to source from ?

Thanks
Click to expand...
Normally the cover goes at the clutch because the clutch is being asked to hold more load than it really should. Memorably we had a tackline fail in this way, cover detaching from core, during a very windy jibe on a J105 a few years ago. With the result that about 5m of core shot through the clutch until so much cover had built up at the clutch to jam everything up. Leaving the kite 5m from the pole and fully powered up. That didn't end well....

There are a few solutions to this issue.

1. Leave highly loaded lines on a winch. This is what we typically do with jib halyards upwind.
2. Change the halyard to 2:1 to halve the load at the clutch - this is what we have on our main halyard.
3. Stitch in a length of extra cover over the part of the halyard that goes through the clutch - this is what we have done with the spinnaker halyards.
4. Upgrade the clutch to a much bigger one, or even better a soft clutch. This is what the big offshore boats do.

All of which have upsides and downsides. In your case I'd probably start with option 3.
 
flaming said:
Normally the cover goes at the clutch because the clutch is being asked to hold more load than it really should. Memorably we had a tackline fail in this way, cover detaching from core, during a very windy jibe on a J105 a few years ago. With the result that about 5m of core shot through the clutch until so much cover had built up at the clutch to jam everything up. Leaving the kite 5m from the pole and fully powered up. That didn't end well....

There are a few solutions to this issue.

1. Leave highly loaded lines on a winch. This is what we typically do with jib halyards upwind.
2. Change the halyard to 2:1 to halve the load at the clutch - this is what we have on our main halyard.
3. Stitch in a length of extra cover over the part of the halyard that goes through the clutch - this is what we have done with the spinnaker halyards.
4. Upgrade the clutch to a much bigger one, or even better a soft clutch. This is what the big offshore boats do.

All of which have upsides and downsides. In your case I'd probably start with option 3.
Click to expand...
A side point @flaming but I like braid on braid for the kite halyard to take some load out when the kite “snap” refills in heavy airs. No reason imo that the kite halyard has to be absolutely non stretch, and I’ve seen enough of them fail at the clutch.
 
flaming said:
Normally the cover goes at the clutch because the clutch is being asked to hold more load than it really should. Memorably we had a tackline fail in this way, cover detaching from core, during a very windy jibe on a J105 a few years ago. With the result that about 5m of core shot through the clutch until so much cover had built up at the clutch to jam everything up. Leaving the kite 5m from the pole and fully powered up. That didn't end well....

There are a few solutions to this issue.

1. Leave highly loaded lines on a winch. This is what we typically do with jib halyards upwind.
2. Change the halyard to 2:1 to halve the load at the clutch - this is what we have on our main halyard.
3. Stitch in a length of extra cover over the part of the halyard that goes through the clutch - this is what we have done with the spinnaker halyards.
4. Upgrade the clutch to a much bigger one, or even better a soft clutch. This is what the big offshore boats do.

All of which have upsides and downsides. In your case I'd probably start with option 3.
Click to expand...
Thanks. Yes, 99% of the time we leave the main halyard also on the winch - only removing when need to use electric winch to assist (carefully) with jib furling line. Hence why surprised a quality rope parted completely in under 4 seasons having also end for ended.
 
ylop said:
Have you asked the rigger for a price? So long as I was happy with the colours he had in stock they weren't hugely different to online ordering once you added shipping and any splices etc.
Click to expand...
Yes have asked rigger for thoughts. But up here many are sole traders / small businesses who don’t carry stocks beyond the basic consumables.
So many differnt rope specs, sizes and colours it would be uneconomic for them to hold lots of very expensive stocks. Less specialist ropes available via chandlery, but even they can’t hold the range of a rope specialist.
 
dunedin said:
Thanks. Yes, 99% of the time we leave the main halyard also on the winch - only removing when need to use electric winch to assist (carefully) with jib furling line. Hence why surprised a quality rope parted completely in under 4 seasons having also end for ended.
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There's a reason I spring for the (insanely expensive) Technora covers for the high load lines. Haven't had one separate from the core since we made this change.
 
Also, 12mm is really very thick for a Dynema halyard. What size boat is this? Guessing it's reasonably sizeable given a 50m main halyard.
 
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