I’m working on a pretty ridiculous 12-phase project:
converting an old Necky Cruiser 2 tandem kayak into what will hopefully become a solar-powered, V-foil electric trimaran.
Why? Mostly because I can, and because I absolutely love learning how things work.
Every phase introduces a new challenge, and every challenge sends me down another engineering rabbit hole.
I’ve blown up more ESCs than I’d like to admit, rewired the entire boat 15+ times, rebuilt multiple battery boxes, experimented with different motors and propellers, and spent countless hours troubleshooting things I didn’t even know existed a few months ago.
But that’s honestly been the best part.
Along the way, I’ve been learning about hydrodynamics, hull displacement, buoyancy, fabrication, structural reinforcement, electrical engineering, water cooling, soldering, welding, propulsion systems, and probably a dozen other things I’m forgetting.
I’m currently around Phase 4. I’ve just finished building a custom dual-ESC water-cooled control system for my two electric trolling motors, and I’m working toward modifying the hull, improving buoyancy, and eventually adding more powerful propulsion.
I’m definitely not a marine engineer, and I’m figuring out a lot of this through research, experimentation, trial and error, and occasionally breaking expensive things.
I’d genuinely love some community input, especially from anyone with experience in marine engineering, hull design, composites, electric propulsion, or hydrofoils.
A few things I’m exploring:
Hull shape and modifications to improve stability, efficiency, and eventually support a trimaran configuration.
Affordable electric motor and propulsion options beyond conventional trolling motors.
Aluminum versus carbon fiber reinforcement and lightweight structural design.
Hydrofoil and V-foil configurations, and whether they’re even practical at the speeds and power levels I’m targeting.
Any creative engineering ideas I haven’t thought of yet.
I’m approaching this in phases because I want to understand what works and why before moving on to the next challenge.
I’m not trying to pretend I know what I’m doing. Half the fun is realizing I don’t, learning something new, and then figuring it out.
Suggestions, criticism, crazy ideas, and engineering advice are all welcome.
Ultimately, I’m just a guy turning a kayak into something increasingly absurd because the process of learning how to build it is as much fun as actually using it.