For the foresail it is the fore triangle area in sq.ft. * wind velocity at
reefing point squared * .00431

A bit more complicated for the main sheet. Look at page 41 of the 2006
Harken catalog.

--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com

"Courtney Thomas" wrote in message
ink.net...
What is/are the proper method(s) of calculating loads on sheets & Co. ?

Thank you,
Courtney