I have a sloop rigged dory and want to experiment with a lug sail. I'll use Polysail material to save some $$ and wondering if such a sale would need a tuck in the tack. I'm thinking a 1/2 " tuck about 12" long. Any thoughts? SEEYA Jack
Yes. Size depends on your sail size.
http://www.jimsboats.com/webarchives/1998/15oct98.htm#Lugsails%20From%20Polytarp%201