Sail Mockup

I fiddled around with things a little more last night. Again, none of this work is set is stone, but I did want to get a sense of scale, practicalities, et cetera, before doing this thing for real.

When I rigged the mast the day before, it seemed to me that the 6' horizontal yard was disproportionally short. So I decided to try an 8' horizontal, and it seems to be a little better ratio, height-to-width.

Just for ducks, I decided to loosely tie on the sail (a duck canvas tarp) to the yard before raising it, to just get an early sense of what we'd be looking at:

Obviously, things are not rigged properly, but it's enough to get a sense of things.

One thing I noticed is that this sail, even without being properly rigged, and without sheets to hold it taut against the wind, provides a very large surface area (48 square feet) that can catch the lightest breeze. I don't have the mast "stepped" into the deck, it's really just gravity and friction against the bottom of the boat that's holding this rig up. It was a very calm night last night, but one little gentle breeze came through the back yard (barely enough to ruffle leaves on the trees) and it blew the whole sail/mast rig over. I think when I get it rigged taut, with the thwart and the step set into the deck, it's going to be able to provide some pretty good thrust.

This mock-up also affirmed an issue that Mary originally raised a couple of weeks ago, when I was last musing about sail plans: I'm not going to be able to see where I am going.

I laughed her off at the time, but I'm starting to wonder if she might not have a point. Clearly, I'm going to have to periodically raise the sail (or part of the sail) to be able to see ahead. I'm also toying with the idea of moving the sail thwart back further towards the second rib, and putting Midshipman Henry in front of the mast to act as lookout.

Because I'm feeling like sharing, I'll let you in on my idea for the sail rigging, which is based on traditional methods, but with a slight modification.

In a traditional square rig (as I understand it), the sail is tied to the yard across the top, and then there are furling lines which run from the top of the mast to the bottom corners.So, when you pull down on these lines (1), the corners "furl" up diagonally towards the top center of the mast(2).
My idea, which I got while looking at our Roman shades in the office, is to have a second pair of blocks out at the ends of the yard, so that when the sheets are hoisted (1), the corner of the sail will raise straight up to the yard(2).
This way, I could pull on one or both of the lines, and get the sail to many different shapes and sizes, relatively easy. And, when I don't want the sail at all, I can pull them both all the way to 100%, hoisting the sail up to the yard and out of the way.

Anyway, that's the plan. The next step (possibly tonight) is to epoxy the inside of the boat and the spars (mast and yard), and then I'll be ready to rig the sail on Friday.