Yep...Blue Poly tarp, constructed with curved leach and luff, which creates a decent shape when the straight spars inserted into the sleeves.
In the picture I show one steering oar, but have also sailed with one on each side...still not ideal. I ended up building a a pivoting rudder controlled by lines lead foreward to bungee cords (ala Rudder Like Butter).
It works pretty good, but I may need a slightly larger surface area to the Rudder. Still tweaking things, and I hope to post results soon!
Picture of my new rudder:
[img size=150][/img]
