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SVOMike86 is doing aluminum sponsons. Seems pretty interesting.
https://www.tinboats.net/forum/viewtopic.php?f=21&t=10699
 
bearsphan3.14 said:
SVOMike86 is doing aluminum sponsons. Seems pretty interesting.
https://www.tinboats.net/forum/viewtopic.php?f=21&t=10699


These are not actually what I would call "sponsons" though. These just stick onto the side(of a canoe in the case of the link). I was just wondering if adding these(or something of the sort) onto the side(not bottom) of a jonboat at the water line would add any addition stability to make them worth-while. Basically extra flotation attached onto the side of the boat.

In the case in these pics, they are just added for "last chance stability" to prevent rolling the canoe, but if you moved them down to the waterline of a jonboat, seems this would be a good concept for some of you guys with those narrow jonboats.
Here is a pic....
rowing__2.JPG

rowthecanoe%20(28)-1.JPG
 
A year ago I purchased outriggers from sailboatstogo.com for a canoe I had. These outriggers are slightly different than the sponsors you have pictured below. I have sold the canoe but plan to use the outriggers on my 1965 semi V, at the front to serve as supports for my front deck. These outrigger floats have telescopic arms that extend about 4 feet in both direction. You can even motor with them at full throttle and the outriggers stay in place. As long as you have gunels of decent size, these outriggers will fit great. They have saved me many times on my canoe from flipping.
 
I imagine they would be helpful. We have a 15' aluminum Smoker Craft canoe that has similar shaped bulges made into the hull, at the waterline. That thing is very stable. It is a canoe that one can easily fish standing up in, without even thinking of falling out.
 

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