Here is a guy's electric outboard project using an etek motor and eventually a Sneakeasy. He achieved a max speed over 10 miles per hour.
http://www.psnw.com/~jmrudholm/etekoutboard.html
http://www.psnw.com/~jmrudholm/etekoutboard2.html
http://www.psnw.com/~jmrudholm/etekoutboard3.html
http://www.psnw.com/~jmrudholm/etekoutboard4.html
http://www.psnw.com/~jmrudholm/etekoutboard5.html
--- In electricboats@yahoogroups.com, "nedfarinholt" <nedfarinholt@...> wrote:
>
> I am interested in building an electric runabout and would like help on hull design. Here are the basic requirements:
> Less than 30 feet in length, preferably 25'
> Strip hull construction
> Sufficient beam to accommodate two persons side by side, at least 3', prefer 4'
> Sufficient stability to handle a broach in 3' chop or powerboat wake.
> Prefer monohull.
> Cruising speed above 10 knots.
> Cruising duration 3 hours at 10 knots.
> Would like to accomplish the above with less than 600 lbs LA batteries.
>
> I understand the tradeoffs among battery chemistries, motor, and controller types.
> What I want help with is hull design. The trade offs between length to beam ratio, drafts, and hull geometry. I have purchased plans for 20 to 30 foot canoes and Atkin's Sergeant Faunce utility. By increasing the freeboard and decking the canoes, I think I can handle the open water, but my real issue is how much must I increase the L/B ratio to overcome the 1.3xsq rt of waterline? I would rather not go as far as the guy in the Wye Island marathon who used a 50' rowing scull!
>
> Any ideas or experience or can you refer me to some sites or literature. I have already scoured the web pretty thoroughly.
>
No comments:
Post a Comment