A 16 foot catamaran will push beautifully with a pair of 36v trolling motors. Just sayin. Dont get the super cheap ones with the crude resistor type speed control, though. They are incredibly inefficient at low speeds. No sense to reinvent the wheel for this application so I suggest trolling motors. If weight is a problem, and you dont need a lot of range, use a 20ah 36v or 48v lithium ebike battery for storage. Cost will be about 3x what the same capacity in flooded cell batts would cost, though. You can "usually" get away with overvolting trolling motors as long as you never go full power. In fact, you can probably use a 48v battery and 48v PWM controller with a cheapo 12v trolling motor. Leave the speed control on the motor wide open. The resistor network speed control is entirely bypassed at full throttle. Then use a potentiometer for the speed control on the controller to adjust power. Keep it down to rated current of the motor (be sure to install an ammeter and fuse block) and you are good in theory even with a 12v motor. A single motor makes things a lot simpler at the cost of cool-kid showoff maneuverability. Remember, this advice is worth exactly what you paid for it.
I have my own 12v seawater rated $140 trolling motor, $30 48v PWM controller, and spare ebike battery waiting for me to put it all together in my pirogue.
---In electricboats@yahoogroups.com, <halloc@...> wrote :
this friend of mine, is trying to find a electric propulsion setup
for the 16ft catamaran, he thinks there are enough space
in the pontoons.
i'm trying to find a setup he can use, i'm not sure there is a kit
already made for this, i see mono-hull setups around.
any help will be appreciated.
thanks .. halit ..
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