Yowsa! Kinda the opposite end of the spectrum from my long and lean at minimum watts approach to electric boating. I think I could tool along all summer with one charge of a 25kWh battery bank ;) (of course even with LiFePO4's it would sink my boat).
With that big bank you can't go very long at 70+ kW draw/top speed. Have you measured the draw and knots at cruise? Never having planed a boat on electric power, I've always wondered what the current draw would be to keep a small electric speedboat on plane.
What size is the prop? What does the boat displace?
How far do you have to go to commute to work?
Inquiring minds want to know!
Thanks,
Neil
--- In electricboats@yahoogroups.com, "ams_ak@..." <ams_ak@...> wrote:
>
> Neil,
>
> Yes they are.
> motor: Kostov 11" 250V 260A/duty cycle, we have 2 extra blowers for cooling
> Controller: Evnetics Soliton1 = 300kW max output
> Batts: 90 * 90AH Winston LiFePo4, we limit to 540A output (6C)
>
> We got all of the above from http://kostov-motors.com/tractionmotors/kostovevmotors(ac-dc)/seriesdcmotorsforelectricvehicles/k11250v/
>
> Great company, great service.
>
> AK
>
> --- In electricboats@yahoogroups.com, "fneilss" <fneilss@> wrote:
> >
> >
> >
> > --- In electricboats@yahoogroups.com, "ams_ak@" <ams_ak@> wrote:
> > >
> > >
> > > Hello and thanks for the good cheer!
> > >
> > > a new vid up on Youtube that goes a small ways toward answering the questions.
> > > http://youtu.be/jj3gg7A6BZ0
> > >
> >
> > The text on Youtube says 240V - your audio says 300+ amps at one point - 70+ kilowatts??? Are those numbers right?
> >
> > Neil
> >
>
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