Friday, July 17, 2009

Re: [Electric Boats] Re: Direct drive brushless DC motors now available

 

What yard is the boat in?

On Fri, Jul 17, 2009 at 2:09 PM, kmannell <kevmann@comcast.net> wrote:

>
>
>
> Well, we dropped her in the water at 5:20pm 7/16/09. Lots of work was done
> on the boat including the removal of an Atomic 4 ICE. Please keep in mind
> that I have never worked on a boat before and am not a sailor. We scraped
> her down to the gel and painted the topside and resealed the bottom coat,
> weeks in the San Rafael dockyard with lot's of great people encompassing a
> wealth of knowledge. We also had some newbie issues with me overseeing the
> removal of the A4, I missed a bolt and when we pulled it, bent the shaft
> just a tad. The A4 had a small prop designed for the higher RPM it produced
> that we replaced with a three bladed 11x11 with a shaft that was 12" longer
> so we could place the battery pack behind the motor, from the Prop Shop in
> Richmond.
>
> Long story short, we just did the sea trials and recorded data Arby will be
> posting soon. I will be doing power testing, as far as I can go, to get a
> good drain on the 4 70lb, 100ah, AGM batteries in two banks of 24v and will
> let you know times and distance from a full charge. I am working on our web
> site and will post the full story there, as soon as possible with lots of
> pictures and some video. We will keep you informed on changes we make to
> improve performance or efficiency and follow with data on them.
>
> Kevin Mannell
> Advanced Marine electric Propulsion (.com soon)
> AMeP
>
>
> --- In electricboats@yahoogroups.com <electricboats%40yahoogroups.com>,
> postal6@... wrote:
> >
> > Just finished talking with Kevin, who is working with Arby on an Ericson
> > 27. They have changed the prop to a three blade and hopefully will put
> > the boat in the water tomorrow, July 15, 2009. This is the 24v system.
> > Don
> >
>
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