Mark,
I think the problem may be trying to use the propulsion propellor for the electrical generation. Brad Van Liew did a segment on his hydrogenerators for La Pengouin on the Velux 5 oceans race website. Let me see if I can find a direct link to it.
He has these small propellors that have a small hydraulic system to adjust the pitch. This may be too complicated and expensive for the average cruiser right now and the speed of these boats is very different, but there may be some applicability in the future.
Richard
--- In electricboats@yahoogroups.com, "acsarfkram" <acsarfkram@...> wrote:
>
> Hey Mike,
>
> I couldn't agree more, for me it would be depressing to go back to diesel or gasoline. Regen is a weak point(so far) and it seems a prop in an aperture is even more of a challenge. I can't shake the idea of a hydro-generator for regen on an electric auxiliary.
>
> I guess they must of gotten one of the older Sevcons that restricts forward/reverse shifting if the shaft is moving. They could have had the controller re-programed or have done what I did with the shaft brake. The brake would have also taken care of the freewheeling prop issue.
>
> Mark
> Santa Cruz
>
> --- In electricboats@yahoogroups.com, Mike <biankablog@> wrote:
> >
> > Mark:
> > Â
> > Just finished the article. I agree it's a shame they are going back to the dark and dirty side with diesel. Looks like the regen issue is what really what bothered them. It also seems to me they would have been happier with having a Honda 2000 (or even a 1000) on board for occassional bulk charging of the bank. Also it does not make sense to me why they would put the motor in regen mode using more power to lock the shaft rather than motor sailing using less power and also gaining more boat speed if the prop rotation was such an issue. Interesting that they commented on the lack of maintenance and cost with their electric system as those of us who have converted have happily found out too. I think they will be unhappy once they go back to diesel. But, then again they will have a lot more to write about once they do.Â
> > Â
> > Capt. Mike
> > http://biankablog.blogspot.com
> >
> >
> > --- On Thu, 6/2/11, acsarfkram <acsarfkram@> wrote:
> >
> >
> > From: acsarfkram <acsarfkram@>
> > Subject: [Electric Boats] Re: Siandra unplugged
> > To: electricboats@yahoogroups.com
> > Date: Thursday, June 2, 2011, 11:12 PM
> >
> >
> > Â
> >
> >
> >
> > Hi Rob,
> >
> > Thanks for the link; http://gb.zinio.com/reader.jsp?issue=416161540&o=int&prev=si
> > It's a good read although nothing new. It's a shame they didn't work out the controller issues, they sounded like pretty basic problems.
> >
> > I wonder how they would have done with a hydro-generator.
> >
> > Mark
> > Santa Cruz
> >
> > --- In electricboats@yahoogroups.com, Rob Johnson <dopeydriver@> wrote:
> > >
> > > I have e-mailed the editor , asking permission to use the article , but have
> > > since found you can get to the article , via the website . The issue is 274
> > > April 2011 , the article is "Ditching Electric".
> > > Regards Rob J.
> > >
> > >
> > >
> > >
> > > ________________________________
> > > From: Rob Johnson <dopeydriver@>
> > > To: electricboats@yahoogroups.com
> > > Sent: Fri, 3 June, 2011 6:39:07 AM
> > > Subject: Re: [Electric Boats] Re: Siandra unplugged
> > >
> > >
> > >
> > >
> > > WOW , this got quite a response , good !.
> > > CB is "Classic boat" www.classicboat.co.uk .
> > > I'll post it wherever , if I'm allowed.
> > > Regards Rob J.
> > >
> > >
> > >
> > >
> > > ________________________________
> > > From: acsarfkram <acsarfkram@>
> > > To: electricboats@yahoogroups.com
> > > Sent: Fri, 3 June, 2011 1:42:33 AM
> > > Subject: [Electric Boats] Re: Siandra unplugged
> > >
> > > Hi Rob,
> > >
> > > What is CB? I'd like to read the article.
> > >
> > > Mark
> > > Santa Cruz
> > >
> > > --- In electricboats@yahoogroups.com, "Rob" <dopeydriver@> wrote:
> > > >
> > > > I apologise if this article has already been bought to the attention of
> > > >forumites , but there is a good article written by a couple cruising the world ,
> > > >and their auxiliery power.
> > > > In CB246 of 2008 they had an article on replacing their elderly diesel with
> > > >electic power.
> > > > In CB274 of April 2011 , they have an article on why they replaced their
> > > >electric power , with a diesel.
> > > > Its quite a comprehensive article.
> > > > The last paragragh reads "We look forward to seeing new electric drives emerge
> > > >, but in the meantime we are regaining our independence by replacing the Thoosa
> > > >with a small , stinky, noisy, high-maintenance diesel engine".
> > > > If needs be , I could perhaps copy the article , and post it somewhere.
> > > > For me , I'm still waiting for the Mastervolt Drivemaster Ultra Hybrid to be
> > > >released to the world , and find out how it performs , and at what price.
> > > > Regards Rob J.
> > > >
> > >
> > >
> > >
> > >
> > > ------------------------------------
> > >
> > > Yahoo! Groups Links
> > >
> >
>
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