Running backstay and Olivier links

[william h]

Prevost has a device called Olivier link for attaching rope to a mast. Can this be used to attach running backs?

[Brion Toss]

Hello,
This link is a form of internal tang, one that allows you to attach a line directly, without intermediate hardware. I don't know what kind of strength loss the trip around the link might effect, nor how an off-angle pull (the link must be installed in line with the mast, not the runner) will affect things, nor how strong the fitting itself is. Seems like a regular internal tang, with a T-ring (http://www.navtec.net/products/index...ies&part_id=15) would do the job better, and be easier to rig and downrig.
Fair leads,
Brion Toss

[CAM]

I've convinced myself to use these for a small boat with a carbon mast, in progress.

According to Precourt, the Olivier link is identical to a typical t-ball fitting in its interaction with the mast. The interesting stuff happens at the rope-to-link interface. Lashing, or a luggage tag/cow hitch seem the best connection options.

[Olivier]

Hello, I am Olivier Blanc, the "inventor" of the Olivier Link. I just stumbled upon this thread!

If you use the links on carbon fiber spars, make sure you use some sealant or anti-corrosion paste. In salt water, the links will corrode (galvanic corrosion between carbon and aluminum). The carbon fiber spar will not be affected so you could just inspect the links regularly and rinse in fresh water frequently. You could also attach the links with nuts and bolts to allow complete removal for inspection. (The 2 rivet holes in the links can be threaded with a tap to allow mounting with 2 screws. This should work fine but I have not tested it yet). The links are really designed for aluminum spars. For composite spars, titanium links would be the best choice: stronger and no corrosion, plus the cool factor!
On what boat are you sailing?

Olivier