James,
I knew that someone would bring that up, but I have to say that a canal boat is not quite the same type of boat as "a 1980 288 Cruisers Yacht VillaVee w/ Twin 454's". I don't think that many owners would spend much money to swap out their 28kt top speed for a top speed of less than 10kts. While I could build a conversion that would get a lot closer to the "normal" cruise speed of 20kts, operating at those speeds would be difficult to sustain for as much as an hour.
That said, I do believe that Dragonfly is a good example of a well executed hybrid, not all electric, conversion. Because a canal boat is only expected to operate in full displacement mode, it makes a much better candidate for electric drive.
Fair winds,
Eric
Marina del Rey, CA
--- In electricboats@yahoogroups.com, James Sizemore <james@...> wrote:
>
> Eric, what made Dragonfly (http://www.slowboatcruise.com/) a failure?
>
> On Apr 19, 2011, at 8:21 PM, Eric wrote:
>
> > John,
> >
> > We would all be interested in your results of your power cruiser conversion. Perhaps you can tell us the following:
> > 1. What was the capacity of the battery banks?
> > 2. How fast was cruise during "cruise a couple of hours on a re-charge"?
> > 3. What was your power load for cruise (watts or amps and volts)?
> >
> > So far, I haven't heard of any other successful power cruiser conversions.
> >
> > Fair winds (or calm seas),
> > Eric
> > Marina del Rey, CA
> >
> > --- In electricboats@yahoogroups.com, BD <bigdaddy69_77@> wrote:
> > >
> > > Can you please clarify "some money?" How much for one of the drop in conversion
> > > units with appropriate battery power and charging needs?
> > > "Those who make peaceful revolution impossible, make violent revolution
> > > inevitable."
> > > ~John Fitzgerald Kennedy
> > >
> > > ________________________________
> > > From: John Raynes <johncraynes@>
> > > To: electricboats@yahoogroups.com
> > > Sent: Mon, April 18, 2011 2:54:47 AM
> > > Subject: Re: [Electric Boats] EP for larger cruisers?
> > >
> > >
> > > Patrick,
> > >
> > > I did an electric conversion a couple years ago to a Pacemaker 266 powerboat. I
> > > am happy to share my experience with you and give you a base line of data from
> > > sea trials. A place to start from anyway.
> > > My boat conversion to electric was a single screw inboard. She was set up with
> > > 2 battery packs of Lithium Iron Phosphate Batteries; I could cruise a couple of
> > > hours on a re-charge Do you have twin inboards or I/O's? If you have inboards
> > > with shafts, shaft seals, props, struts, etc you are ahead of the game. If you
> > > are starting from I/O's you might consider twin electric outboards. Just my
> > > professional opinion. There are several good drop in electric conversions units
> > > out there. Thoosa from Asmo Marine and Quiet Torque units from Electric Yacht
> > > seem to be the front runners. Be ready to spend some money on battery power and
> > > recharging.
> > >
> > > John
> >
> >
>
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