Converting a beach cat rig for cruising

[cavalier mk2]

Darn it I figured crew CG at 4 feet out because a male center of gravity is above the waist. Average female CG would be around 3 feet.

[rayaldridge]

Everyone, I appreciate the thoughts.

Bruce, what isthe H-18 section, approximately?

[bruceb]

Ray, I just measured one so these are exact. The extrusion is exactly 3"x5", 3/32" walls with thickened areas in the sides and front. It is a "fat" teardrop profile and 28' overall with 20' to the jib eye. The diamonds are 1/8" and the shrouds are 3/16, all swaged. H-18s, even with the "magnum" 3' rack extentions plus traps, hardly ever broke anything. Heavy but durable. B

[AsterixDeGaul]

Originally Posted by cavalier mk2

Darn it I figured crew CG at 4 feet out because a male center of gravity is above the waist. Average female CG would be around 3 feet.

) ... Probably for a basketball player. I had in mind 3.5' with the fulcrum @ midpoint on the lower hull, so 7.5'... Total being 11...

Ray, you're welcome.
Good luck with the build.

[ThomD]

I think my D23 that uses an H18 rig has 1/8" wires, and 3/16" sea stays as designed. Beam is 18.5 feet. The rig fell down last year at anchor, when a jet ski went by. Some nut wasn't tight, or some nut didn't tighten. No damage to the rig or boat.

Anyone have a rule of thumb on tensioning diamond wires, as a basic, don't-blow-up setting, not to gain performance? I had to take the DWs appart to store the spar last year, and don't have any fancy rigging tension measuring device?

http://www.youtube.com/watch?v=BnLmKXY-FCg