[quote=dcwhite]Stirring the pot here:
The bridle foil used on a Nacra 6.0 (and I assume other 5.8 boats) was the aluminum extrusion from a spreader for a mast. You can buy a similar (or the same extrusion) from various mast manufacturers. The purpose of introducing the bridle foil was to accommodate a larger jib introduction without adding more buckling force to the bows. Are you refitting your boat with a larger jib? If not, why add weight and complexity? Are you moving your jibs sheets back to accommodate a larger jib? One of the reasons I moved on from the 6.0 NA to the Inter 20 was my loathing of the bridle foil.
If you are talking about a carbon bridle foil- you will have to design the laminate and determine if you will prebend it or leave it flat.
Look at the jib setup on the Nacra Carbon 20. A similar effect of reducing hull bow buckling is achieved by running a high set of bridles that carry most of the rig tension and a second lower set of bridles and a compression rod between the 2 bridles. The low bridles only need to keep the bottom portion of the jib in line with the forestay and do not pull on the hulls as hard. This configuration is more efficient, less weight & windage than the old bridle foils. The compression strut seems to be the same extrusion used on the diamond wire spreaders.[/quote]
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