Re: How to mount a lateen to yard and boom
I didn't see your post. You can make a sleeve over the spars in the sail material but I prefer to cut it the right size PLUS about 2", enough to fold over to have a double layer in which you can put grommets. Wal Mart and any hardware store sells a grommet tool. Put your grommets every foot or so. Use zip ties to attach thru these grommets to the spars. My sails do NOT extend beyond the ends of the spars.
My latest sail is made this way but I also sewed a 3/16" line in the fold to strengthen it. The sail is usable without sewing because the grommets hold it but sewing makes it look better and it is easy to sew on a machine (my wife never uses her sewing machine and I use it all the time).
I think the lower spar is joined to the mast via a thru bolt but I put a piece of wood inside the spar where the bolt goes to strengthen it.
This allows the entire assembly of mast and spars, halyard, mainsheet and sail to be rolled up in an easy to transport package.