Friday, July 17, 2009

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

 

Kevin and all - congrats and welcome to the club! This has been the best summer of sailing I've seen in 9 years so here's to hoping it continues for you.

-Keith

--- In electricboats@yahoogroups.com, "kmannell" <kevmann@...> 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, 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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