Roderick, Dave, thanks for the thumbs-up. I felt that the power and weight advances in parts now reasonably available would make this conversion feasible, glad to find I am not alone.
-Rod
The Canals in Amsterdam are fresh water and there would be no plans for going out on the Northsea any time soon, unless I go a little Wilde myself. Still the plan will be to keep the motor dry, much more so than the ICE in the original setup. I am leaning towards the Winston (Thundersky) LiFePo, in part because I could then source motor-controller-battery from one place within the EU (Kostov).
Cool that you are expanding your interest to this side of the Atlantic. I saw your LR challenge a while back and remember thinking we could use some more of that over here!
-Dave
There is a forced air cooling fan available with the Kostov, making cooling more independent of RPM. Probably a good addition for this setup.
So I wont be too heavy, and I should have enough power, but range will still be a question. I posted the weight calculation for 60 100Ah lithiums, in part because it shows that the new setup could be a little lighter than the original. Kostov recommends going with an 80 x 100 setup, extending range and high RPM (voltage) performance. It adds 70 kg / 150 lb but if budget allows... well thats always the if :)
Either way the motor and controller will be capable of draining the pack real quick, so its a good thing you can also really get a kick out of quiet slow speed cruising. And maybe sneak up on some fish ;)
AK
--- In electricboats@yahoogroups.com, "davecover" <davecover@...> wrote:
>
> AK,
>
> Everything Rod said. He's a great contact, although a little wild(e). Ask him about doing wheelies with his golf cart, or his Mazda, or his postal van. If you want it to be fun, he'll point you in the right direction.
>
> The only thing I'd add is to beware of cooling when running slow. A lot of series wound DC motors have internal fans but they don't do much at slower rpms. While I don't think it will be an issue with a boat, you may want to estimate your prop speed during the slow cruises and make sure you motor isn't going too slow. If you are drawing a lot of amps at slow speed because of a large prop, you may need to adjust. If you keep the motor cooled, and don't over-rev it, the motor will last forever. An 11 inch Kosotv is a pretty big motor, it should be lot's of fun.
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> Dave Cover
>
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