Actually, no, I did answer the question:

"At high angles of attack (eg upwind/high on the wind), the jib, with its comparatively inefficient foilshape, creates more drag than it creates lift. In an ideal world, whenever you go upwind, you'd want to furl your jib and add that sail area to your main, making the main really high-aspect, like Acat, 18sq or other unirig sails (Ccat too). Of course that only will work in the movies ;-)

The jib is also not able to direct flow across the lee side of the main efficiently when at high angles of attack.

Raking back will prolly help some, but not much, and you'll pay for it downwind, so you have to strike some sort of balance there. Raking back will also cause helm imbalance because it changes the center of effort of the sails. So be prepared to reangle your rudders."


See? I told the man why his jibbed boat won't point so well, and I offered him suggestions to help. (That would be the 'raking' mentioned above.)

I won't make the mistake of posting, much less travelling to this site again. newbie out