UJ Safety Rope

6 years ago
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StanDingup
StanDingup
15 posts
15 posts
19 Jun 2019 10:11pm
Hi,

I'm getting my gear back out of the shed for the first time in the last 10 years as my daughter is now old enough to start learning. I may as well get my gear together as well!

1st job will be replacing all the tendons in my bases but thought it's worthwhile also replacing the safety ropes. Bases are Neil Pryde and North.

What ropes are people using for UJ safety ropes? I'm thinking 2mm dyneema, does that sound right?

Thanks

Stan
Imax1
Imax1
QLD
4937 posts
QLD, 4937 posts
20 Jun 2019 6:31am
4 mm if it fits.
melih
melih
134 posts
134 posts
20 Jun 2019 5:39am
StanDingup said..
Hi,

I'm getting my gear back out of the shed for the first time in the last 10 years as my daughter is now old enough to start learning. I may as well get my gear together as well!

1st job will be replacing all the tendons in my bases but thought it's worthwhile also replacing the safety ropes. Bases are Neil Pryde and North.

What ropes are people using for UJ safety ropes? I'm thinking 2mm dyneema, does that sound right?

Thanks

Stan


Dear Stan,
Normally I use 3mm or 4 mm. 2mm is thin.
StanDingup
StanDingup
15 posts
15 posts
20 Jun 2019 1:49pm
2mm is thin but for dyneema has a 450kg breaking load. With 2 runs I reckon 900kg should hold a broken uj.

Will order 2 and 3 mm and report back...
Mark _australia
Mark _australia
WA
23648 posts
WA, 23648 posts
20 Jun 2019 3:47pm
If it is standard it is 4mm downhaul rope.
That enables you to simply tie a knot in the end. If you do that with 2mm you are risking it slipping throught the whole when most needed.
Why over think it? Use old downhaul rope.


StanDingup
StanDingup
15 posts
15 posts
20 Jun 2019 4:01pm
Old downhaul rope wouldn't fit, it needs to be a lot narrower. This photo should show the rope I'm
trying to replace, the small white safety line...



RichardG
RichardG
WA
3761 posts
WA, 3761 posts
20 Jun 2019 5:00pm
StanDingup said..
Old downhaul rope wouldn't fit, it needs to be a lot narrower. This photo should show the rope I'm
trying to replace, the small white safety line...




Go to a yacht chandlery and match the required rope for your needs and specification.
Waiting4wind
Waiting4wind
NSW
1871 posts
NSW, 1871 posts
20 Jun 2019 7:16pm
If they're 10 years old you may have trouble separating the UJ bolts to get the tendons off. May need to replace the assembly.
StanDingup
StanDingup
15 posts
15 posts
20 Jun 2019 6:12pm
Good point but all came apart perfectly.

Unfortunately Scotland isn't too hot on local chandleries or windsurf shops!

Have ordered lengths of 2mm and 3mm braided SK78 dyneema, will report back on what works.
Mark _australia
Mark _australia
WA
23648 posts
WA, 23648 posts
20 Jun 2019 8:03pm
aaahhhh those things
Yeah the NP rebranded Arrows / Aeron etc.

In that case yes - it so damned thin get the best stuff you can find.

olskool
olskool
QLD
2462 posts
QLD, 2462 posts
21 Jun 2019 8:05am
Use the 3mm spectra. Pretty sure thats what the original is.
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