Sail twist on the 170
Hi Joe, Good question about twist. Since I can't talk tecnnically about sail twist, I'll spout out my simpleton's version: One of the major controls on the 170 (that I know of) for controlling twist is the boom vang. Ease the vang and the sail's surface will present more twist. Tighten in the vang and the mainsail shouldn't twist as much. By the way, in larger boats, I think the relationship between midboom (on the 170) or rearboom sheeting plays a roll in twist too--- I think midboom sheeting also acts somewhat as a "super vang", thus limiting the ultimate amount of twist a skipper can produce???? **Now I'll stand back and let the serious captains take a crack at this! In that same direction, have a look at the attached picture of my 170s retro-fitted rearboom sheeting. I've only sailed with the new set up twice, and haven't gauged its effect on my sail's twist, but a pro might have something to offer on what effect rear or midboom sheeting can have on twist. Full sails, Mike G. Alachua, FL
