Originally Posted by DougTheElder
Is the ridge on a tarp with no sewn seam stronger, or less strong, than the ridge on a tarp with a sewn seam?
A sail would be made without a seam, if possible. Stresses run along seams, if they can. They do when there is a break. Without a seam, the stresses are distributed through the fabric.
That's my story, and I'm stickin' with it!