Centre of Lateral Resistance

[SailDesign]

Originally Posted by RedCoopers

In the case of a marconi-rigged mainsail, roach is the extra sail area on the leach - the part of the sail most supported by battens.

An IACC boat has a huge amount of roach.

If you have no roach, your mainsail would simply be a triangle. A Chesapeake bay skipjack has no roach.

Thanks, Red. I've been out of action for a few days trying to get my eldest daughter married. The deed is done, and I can return to normality for a while, prior to starting a new job.

Steve