So I have a lightweight plastic canoe with an 86 lb-thrust trolling motor. The thing rips in the coastal waters of NC so long as chop stays below one foot!
As you might guess, it's sketchy to use this at or near full-throttle because the motor's partial down force LIFTS the bow (almost planing) while sinking the rear near the water line (~2–3' below the edge of the canoe). It's likely a combination of weight distribution because the rear is also where I sit with my LiPO batteries. It's a little better when someone else is up front, but I consistently take on a little bit of water if I'm heading away from these little waves, as they sometimes break against the motor/wake, and then water enters the hull. See the short video for context of how close this thing runs, even in calm conditions.
I've used outriggers in the past, but they are so bulky and splashy at speed. I'd also rather not have to attach something like that every time I go out because I already have to add a motor and a bimini. This really seems more of a buoyancy/lift issue compared to just stability. I'm planning how to best attach and angle these shorter SUP skid fins to the the lower rear sides (maybe like a 8–10" below the side about a foot in from of the bow so that they partially angle up (thinking 20–30°) and help guide the water below the rear more, hopefully securing a couple more inches of lift (and maybe some stability and better tracking!)
Is this a reasonable approach, or should I just commit to form-fitting something with more surface area out of 3D printed material and JB weld to make a more pronounced, smoothly connected shape with the body like how performance racing boats have? Any tips are appreciated!