Can anyone suggest a book that goes through the theory and practice of trimming sails for a fractional rig yacht? I've seen some excellent articles around but there is not enough info... (or is that all there is to it?
I agree the Dedekam book is an excellent introduction.
For more in depth coverage you could look at the "Sail" books "The Best of Sail Trim" (there are two with titles something like that). They are collections of articles from the magazines which are good but patchy as they don't have a coherent approach
My favorite is Granboken at www.gransegel.se, but of course; it´s written in Swedish. Next in line is the small booklet Sail Trim from PBO, written by Mark Chisnell, very handy.
Olivia