Shroud tension
There has been a lot of discussion about the "correct" tension for the standing rigging on B&G fractional rigs lately. The Hunter rep seems reluctant to give any numbers, probably because the "best" settings vary from boat to boat, with differing sailing conditions, etc. For what its worth, I've played about with this on my 1989 Hunter 30G. This has a fractional rig with swept back double spreaders, plus an actual split backstay. After tuning the shrouds by sailing close hauled, as described in many posts, I've measured the shroud tension with a Loos gauge. The upper shrouds are 1/4" 1x19 wire. My tension reading is 725 lbs. The intermediates are 3/16" wire, and the tension is 288 lbs. The lowers are 1/4" wide and the tension is 580 lbs. I haven't measured the backstay tension, but by hand it feels fairly low, maybe 100 lbs or so. I don't want to increase the backstay tension since I already have at least the specified pre-bend in the mast. The forestay is inside a roller furling extrusion. These settings work on my boat, but may not be suitable for other boats, so use this info at your own risk. The Loos guage manual suggests 850 lbs for 1/4" wire and 500 lbs for 3/16" wire, but these values are based on working load considerations for the wire, not on requirements for any specific boat. Has anyone else made actual meaurements of their shroud tension? A Loos guage seems to me to be a vital piece of sailboat hardware.