Double wires

   Hi,
We are thinking of double wiring our boat. We are just wondering what sort of issues and problems we need to take into account. We have a few ideas but anything at all would be useful, bearing in mind this is or a plywood cherub with a carbon floor.
Thanks

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Wave Rider Send Private Message Find Member's Posts Visit Member's Homepage Really should get out more Joined: 27 Oct 04 Location: United Kingdom Online Status: Offline Posts: 909	Post Options Post Reply Quote Wave Rider Report Post Quote Reply Topic: Double wires Posted: 14 Nov 05 at 8:32pm
	Hi, We are thinking of double wiring our boat. We are just wondering what sort of issues and problems we need to take into account. We have a few ideas but anything at all would be useful, bearing in mind this is or a plywood cherub with a carbon floor. Thanks
	-[Franko]- Chew Valley Lake Sailing Club RS600 933

les5269 Send Private Message Find Member's Posts Visit Member's Homepage Really should get out more Joined: 11 Oct 05 Location: United Kingdom Online Status: Offline Posts: 1530	Post Options Post Reply Quote les5269 Report Post Quote Reply Posted: 14 Nov 05 at 8:39pm
	A couple of things spring to mind the top section of the mast would need strengthening if two of you are hanging on it, also the shroud plate would need reinforcing (maybe) two stop you pulling the leeward one out!

49erGBR735HSC Send Private Message Find Member's Posts Really should get out more Joined: 30 Mar 05 Location: United Kingdom Online Status: Offline Posts: 1991	Post Options Post Reply Quote 49erGBR735HSC Report Post Quote Reply Posted: 14 Nov 05 at 9:21pm
	If your helm is used to hiking on the boat, swap roles before you start twin-wiring the boat. It will get the helm used to trapezing off the boat and will improve the dynamics of the boat (helm and crew-wise) because both of you will understand better what's going on overall within the boat and will be able to relate to each other better. Contact sailors with similar designs to the boat you have and see what modifications they have carried out to get their boats twin stringing.
	Dennis Watson 49er GBR735 Helensburgh S.C Boat Insurance from Noble Marine

HannahJ Send Private Message Find Member's Posts Visit Member's Homepage Really should get out more Joined: 23 Jul 05 Location: United Kingdom Online Status: Offline Posts: 861	Post Options Post Reply Quote HannahJ Report Post Quote Reply Posted: 14 Nov 05 at 9:51pm
	You going to leave Ellie out? What about triple wiring like the aussie skiffs? It's a development class...
	MIRROR 64799 "Dolphin" The pessimist complains about the wind; the optimist hopes it will change; the realist adjusts the sail

JimC Send Private Message Find Member's Posts Visit Member's Homepage Really should get out more Joined: 17 May 04 Location: United Kingdom Online Status: Offline Posts: 6662	Post Options Post Reply Quote JimC Report Post Quote Reply Posted: 15 Nov 05 at 9:18am
	Loads on the shrouds go down rather than up, because tension on the rig is taken up by the extra wire, but that also means that the spreaders have much less effect unless you wind up the rig tension. Winding up the rig tension is not going to be a great idea on a 20/25 year old ply boat, so you probably should put check stays/D2s in to keep the lower mast straight - wires from the shroud plates to the base of the spreaders. Side loads on the daggerboard will increase a good bit. If its strong enough to stand on the end then its going to be strong enough I would have thought, if its bendy as hell and creaks as soon as your toe is more than 6 inches from the daggerboard case then you might have to build a new one some time.