Hi Mike,
What kind of numbers are you getting with regen? I have seen
+4amps (@48 volts) sailing at 6 knots. That was not consistent, The current monitor would register from 0 amps to +4 amps and more time around +2 amps than +4.
Mark
Santa Cruz
--- In electricboats@yahoogroups.com, Mike <biankablog@...> wrote:
>
> David:
> Â
> You should absolutely not give up on regen. I was able to get my regen working this past season after two years of trying. Though I was moving along at about six + knots  at the time. So I know it works but, one is not always going that speed (at least I am not). Also I think my controller may have a programming issue as when I put the throttle into the regen detent position I get a current draw of -4 amps. I'm thinking that the controller is setup to be used as an "electric brake" and not set up for the type of regen from a propeller turning in the water. I may get around to looking at this issue at some point. But, my electric propulsion system is working great for my cruising needs and I don't depend on regen for charging. Plus when I'm moving along at regen speeds I concentrating more on sailing than keeping an eye on the current meter. So the urgency to get in there and mess around with programming the controller is not high on my list. I'm
> a "if it ain't broke, don't fix it type of sailor" but, that does not mean I don't encourage others to experiment and tweak their systems if they want too.
> Â
> Capt. Mike
> http://biankablog.blogspot.com
> Â
>
> --- On Mon, 11/29/10, Dave Kellogg <inganear1@...> wrote:
>
>
> From: Dave Kellogg <inganear1@...>
> Subject: Re: [Electric Boats] Re: Converting an Albin 27
> To: electricboats@yahoogroups.com
> Date: Monday, November 29, 2010, 1:01 AM
>
>
> Â
>
>
>
>
>
> Mark,
> I hope I can get those good numbers in tests to come, have done pretty close with my ChrisCraft Capri 30. Â My drive prop is a 14X12 three blade that I've ducted with a Rice speed nozzle modified. Â Thrust is great and the preliminary numbers are close to yours. Â For a 12000 boat that isn't as slippery as yours its pretty good, but I'm still working on the system. Â My boat needed a total rebuild inside and out so it wasn't just a put the electrics in place. Â I've build a 5 blade 11 pitch prop from composite, I am not as concerned about push as I am about developing the best prop for regen while sailing.... Â a topic that everyone says isn't worth the effort, I disagree and will continue the project until I have things in working condition... Â as Winston Churchill once said, "don't ever, ever, give up".... Â chuckle.... Â I won't...
>
>
> Dave K
>
>
>
>
> From: acsarfkram <acsarfkram@...>
> To: electricboats@yahoogroups.com
> Sent: Sun, November 28, 2010 1:03:15 PM
> Subject: [Electric Boats] Re: Converting an Albin 27
>
> Hi Dave,
>
> My boat is actually a Bruce King designed 1976 Ericson 27. And my current motoring numbers are better now that I have a larger (12x10) three blade prop; 4 knots at 20 amps.
>
> Mark
> Santa Cruz
>
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