A few years back I was looking for outrigger floats and attachments for canoes, and I came across a company that was making some larger-than-typical outriggers for canoes.
If I recall correctly, they were molded fiberglass, filled with floatation material (foam of some sort, I believe), and were -considerably- larger than the average floats (perhaps as long as 6 or 7 feet each).
The floats in reference gave the canoe the benefit of a trimaran, and if I recall correctly, allegedly increaseed weight-hauling capacity by roughly 200 lbs, either per float, or per set (I can't recall which). In this regard, some of the pics I saw had cargo (likely in water-proof gear bags) lashed to the tops of the outriggers, and, in one set of pics, had kids and/or a dog sitting on top of the outriggers/span bar attachment(s).
The beauty of these things appeared to be the ease of attaching and detaching the bars and floats, so that you could still have a canoe that would make it up narrow, log-jammed creeks, in its original configuration, but be able to convert it to an ultra-stable trimaran of sorts for carting kids, cargo, etc., around on open water while camping and fishing.
Has anyone seen these larger floats that I'm referring to? Know where to find them again?? Have any input as to their advantages or draw-backs??
I'm also searching for a good deal on an older Grumman square-stern, 19' freighter, or similar boat, to attach a 7-10 hp motor to, along with the above-described floats/outriggers.