Brent,
There have been several runabout conversions to electric. See, for example, http://www.boatdealers.ca/reviews/boats/bruce/bruce-22-classic-electric-launch.aspx?LangID=1 Ian Bruce had his boat at the Wye Island Challenge and it will definitely plane. I have built a 19 foot speedster that will do almost 3 times hull speed with a Torqeedo outboard. The secret is to use a very efficient hull optimized for the speed you intend to run and keep the weight down. Keeping the weight down means using lithium batteries.
On Oct 29, 2012, at 10:40 PM, brent.jaybush wrote:
Has anyone attempted or been successful converting a fairly large stern drive to electric drive?
I have a 1979 26 ft. SeaRay powered by a Mercruiser/Chevy 260 HP 350 CU V8 gas hog with a 100 gallon tank for the black gold.
Just beginning to research the possibilities. Certainly no shortage of space for batteries.
Edison Marine has created a large 17' runabout with enough powering for hull speed, so it seems it should be feasible, perhaps with limitations.
I already run it around MDR at a sea snail's pace using a surplus trolling motor on the swim step, so a proper EV design should do far better, but achieving plane speed is probably out of the question.
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