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with original N/S 155 genoa in good condition what should be the tacking angle in 12 knts true ? (to weather left to to weather right)
Loupo
That's tough to say without seeing how the sails look, if it's an original dacron genoa it's 20+ years old and if it's seen a lot of use over that time it is probably pretty blown out. On my boat an 85 MkV with a two year old Doyle dacron square weave genoa in that kind of wind we are tacking through about 85 degrees. with my older (4 year old) Quantum pentax genoa we can manage about 90 degrees in the same conditions. There are a lot of other factos that come into play with that amount of wind though. Things like sea state for example. It could be 12 knots offshore where there is little wave build up, it could be some chop with white caps just forming or it could be 3 - 4 ft. waves. Each of these conditions will affect your ability to tack. We generally find that in that much wind with a slight chop that we have to oversteer a bit, say maybe 95 degrees initially and after 20 - 30 seconds start working up as the boat speed builds. The Mark V does have a good keel shape (we just spent last winter fairing ours) but once you get a flow over the foil is does start to give you lift.
Steve
Still Knot Working #75
Offline
Thanks Steve....My main is a good one......I quess I'm going to have to bite the bullit....am getting a quote on a Doyle Quicksilver II radial dacron 1.45 overlap for my furlex furler. Your comments are in line with the local experts here on Lake Champlain. Ciao...Lou
Loupo:
You didn't mention that you were sailing with a furler. In that case you can almost automatically expect to get less pointing ability with the boat, you'll probably give up 5 degrees right off the bat, you loose out on luff length and can't get as low a clew as you can without the furler. Everything is a tradeoff, you can have the convenience of a furler or the performance without it. When I got my boat it had a furler on it, after sailing the boat once I sold the furler, made enough on that to but a head foil, and haven't loked back since.
Steve
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lose the furler and get a new genny - we tack through 80 to 85 degrees.
Jim W
Distant Thunder
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