As with all great projects, this one started with a napkin drawing:
Sketchy Napkin Plans
While barrel floats have a long glorious history, we’ll probably do either pontoons or a full plywood-fiberglass hull.
We won’t need any kind of keel with pontoons, but with a full hull, the keel is still an open question. Though apparently some plans call for a, whadyacallit, a skeg, like a short keel that runs the length of the hull.