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Should I regard 12 dyneema as a limited life item?
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themeaningoflife View Drop Down
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Posts: 212 		Post Options Post Options   Quote themeaningoflife Quote  Post ReplyReply Direct Link To This Post Topic: Should I regard 12 dyneema as a limited life item?
    Posted: 27 Feb 13 at 10:03pm
Yep, has been in effect since the class started I believe. There is a minimum amount of wire then the option of a small amount of rope for adjust-ability and then the handle and cleat.
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Post Options Post Options   Quote Guests Quote  Post ReplyReply Direct Link To This Post Posted: 27 Feb 13 at 10:06pm
Ooh, quick, check through photos of the Tiger Trophy. Might be some protests to be had!
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Posts: 1151 		Post Options Post Options   Quote 2547 Quote  Post ReplyReply Direct Link To This Post Posted: 27 Feb 13 at 10:12pm
Dyneema is a poor choice for trapeze lines. It has far too much give. You need vectran. 
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Posts: 212 		Post Options Post Options   Quote themeaningoflife Quote  Post ReplyReply Direct Link To This Post Posted: 27 Feb 13 at 10:18pm
The relevant part is C9.6 in the link below.

http://29er.org/images/stories/pdf/29er2012_cr_04072012.pdf
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Posts: 2202 		Post Options Post Options   Quote pondmonkey Quote  Post ReplyReply Direct Link To This Post Posted: 28 Feb 13 at 7:41am
Vectran lines are good for weight, but wire is easier for travelling as you run less risks of getting a running knot and spending twenty minutes removing the enamel from your teeth freeing the bloody thing up.
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Posts: 324 		Post Options Post Options   Quote Hughph Quote  Post ReplyReply Direct Link To This Post Posted: 28 Feb 13 at 7:42am
We use Hertzog 3mm dyneema on our trapeze wires, and almost everywhere else for that matter, is so useful. 

But in answer to the OP's question- Yes. Even if it may still be strong enough it will really ruin your session if it snaps, so you may aswell replace it early on (like once every season) and use the rope somewhere else less critical. 
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Posts: 30 		Post Options Post Options   Quote Moppo Quote  Post ReplyReply Direct Link To This Post Posted: 28 Feb 13 at 12:12pm
Originally posted by Mister Nick

Originally posted by themeaningoflife

Just a note: Don't ask 29er sailors, only wire trapeze lines are allowed due to it being a youth class.

Ohh I never knew that. Has that been a rule for a long time? Because I heard some pretty good guys in the dinghy park talking about replacing theirs last year, maybe they just didn't know the rule!
 
Rope trapeze lines got banned very early on, remember it happening when I was sailing my first one (c. 2000?). Time flies...
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Posts: 1151 		Post Options Post Options   Quote 2547 Quote  Post ReplyReply Direct Link To This Post Posted: 28 Feb 13 at 5:00pm
Odd really as I'd have though rope was more safe if you wanted to cut free someone in an entrapment situation. Much easier to cut 3mm of rope and find wire cutters ....
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Posts: 116 		Post Options Post Options   Quote robin34024 Quote  Post ReplyReply Direct Link To This Post Posted: 28 Feb 13 at 5:08pm
but it is very unlikely that you will get a leg tied in a tight knot with wire, wheras it is more likely with dyneema.
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Posts: 1341 		Post Options Post Options   Quote Lukepiewalker Quote  Post ReplyReply Direct Link To This Post Posted: 28 Feb 13 at 5:59pm
You'll find wire cutters in each powerboat next to the first aid kit... won't you?
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