Originally Posted by drew23
call me a n00b...
do you need a fractional rig in order to support a mainsail like this? on my rig the mainsail goes all the way to the top, stopping about 3" shy of the backstay. the backstay itself is only about a foot and a half from the end of the boom! I have *very* little clearance between the backstay and my current
ancient, blown out, desperately in need of replacement mainsail.
how does a main with a huge roach get past the backstay when tacking? does it just slide across? does it make much difference when gybing? what about chafe from the backstay?
105Mc has a small square top about 12 inches with a 12 inch mast head
crain and a real fat roach that slides by the back stay easly in light air if the back stay adjustment is loosened up and anytime when the air is over 10 kt's. I say slides by as the sailmaker
put thick clear isenglass on the battens where you would get the most wear. Having the big top and full roach makes the top batten long and last year we got hit by a thunder storm and had to dump all the air we could, but the top batten poped out
and really depowered the sail, it was 45kt's of breeze coming over a hill within about 5 min and no time to go drop the main, my buddies the crew
for the day had been drinking and was little help. We hit 14kt's into a 4 kt current before the batten poped out and only healed 5 deg's with only the main sail up.