--- In electricboats@
>
>
> --- In electricboats@
> >
> > Hello all, lots of fascinating information on this group site!
> >
> > I have a 7.6 metre timber launch that I've just finished restoring, and I have put a 26Kw diesel in it, which pushes the boat past hull speed comfortably. Unfortunately, its extremely noisy, and after spending three months redesigning and building a new engine enclosure, its still far too noisy.
> >
> > So, I'm seriously considering selling the diesel and converting to an inboard electric system.
> >
> > I have lots and lots of questions, and thought it might be useful to ask to be pointed in the direction of some posts / case studies of people with similar projects. Any suggestions and considerations would also be very welcome.
> >
> > The details of the boat are:
> > 7.6m LOA, approx 7m LWL
> > Max WL beam = 2m
> > Displacement = approx 3000kg
> > I estimate that 10 kilowatts is what the hull form needs to be driven to hull speed (hence a 26Kw engine running at 60% capacity at present)
> >
> > The boat is currently sitting above its lines, so weight for batteries is not a concern - especially after the diesel is removed.
> >
> > Very interested in any suggestions people may have for me.
> >
> > Barney
> >
>
>
> Hello Barney,
>
> I can maybe help by passing on information and data from my boat conversion from last year. My powerboat is 26'long with a 9' beam and 5,200 lbs. I installed a 5KW BLDC 48Volt motor, 100Amp Controller and a 3:1 reducer and she goes along at a little over 5 MPH running at 50 amps of current. I installed two battery packs (48 volt x 100 AH) and run the boat off one battery pack at a time. For the speed control I put in a Merritt Joystick which also gives me forward and reverse. I also installed a Converter to take off 12Volts for the lights, bilge pump, key switch, etc. I was happy with the performance of the boat except I would like more power and speed. Also, consider a water cooled or forced air cooled motor because with an inboard motor installation you may need to cool the motor. I hope this is helpful.
>
> ebdrives
>
Thanks very much for that. It sounds like our boats are very similar in size. Sounds like you have a nice setup, but I have to agree with you - it would be nice to have the option to exceed 5MPH if required. What about your stern gland? And were you able to use your existing propeller?
Cheers,
Barney
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