Eric unfortunately I do not have any recorded data at different speeds... that was observed on a 4 nm run while going to a safe spot to ride out a storm and it was flat calm and slack tide. It was a through the water and not GPS speed..
I hope to have more next year as I will be on the boat full time after July..
I do know that I have seen 35 amps at 48 volts to maintain 3 knots going into a headwind.
More next year
Richard
From: Eric <ewdysar@yahoo.com>
To: electricboats@yahoogroups.com
Sent: Wednesday, December 14, 2011 8:42:50 PM
Subject: Re: [Electric Boats] Performance data
Hi Richard,
Thanks for the performance data point. Do you know your current load at any other speeds? It helps me set expectations when I'm talking to people that are thinking about converting various boats.
And I agree, even small amounts of solar seems to be more effective than wind generation.
Thanks,
Eric
Marina del Rey, CA
--- In electricboats@yahoogroups.com, Richard Mair <fullkeel2000@...> wrote:
>
> It should be good..We have the 100ibl electric yacht system on a 9000 displacement Alberg 30 with a 13 by 12 3 blade prop... Calm water 3.5 knots only needs 40 amps on the 48 volt system.
> We are also using a dc/dc converter which has worked well..
> Â About the wind generator we removed ours as it mostly worked at anchor put the output downwind was very small unless you are in 20 + knots of wind. Â In real world we got more output from 75 watts of solar.
> If You can find space for a combination of smaller panels it may be better..More expensive to do it this way though.
> Richard
>
>
Thanks for the performance data point. Do you know your current load at any other speeds? It helps me set expectations when I'm talking to people that are thinking about converting various boats.
And I agree, even small amounts of solar seems to be more effective than wind generation.
Thanks,
Eric
Marina del Rey, CA
--- In electricboats@yahoogroups.com, Richard Mair <fullkeel2000@...> wrote:
>
> It should be good..We have the 100ibl electric yacht system on a 9000 displacement Alberg 30 with a 13 by 12 3 blade prop... Calm water 3.5 knots only needs 40 amps on the 48 volt system.
> We are also using a dc/dc converter which has worked well..
> Â About the wind generator we removed ours as it mostly worked at anchor put the output downwind was very small unless you are in 20 + knots of wind. Â In real world we got more output from 75 watts of solar.
> If You can find space for a combination of smaller panels it may be better..More expensive to do it this way though.
> Richard
>
>
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