1.
Regeneration wont work, practically.
A single 250/300W solar PV panel will provide much more power.
1.1.
My opinion.
Forget the wind.
Its an inverse-square law, and only (very) large stuff (high up) works well.
Spend the money on extra li batteries.
(Wind works more or less well after 2 m diameter on props. They are
noisy, and wont typically last 5 years use, less 10-30 on PV).
The dashews, probably nr 1 designers/builders/cruisers in the world,
agree, with 40 years experience and dozens of multi-million boats done.
No wind anywhere.
See setsail.com
2.
Bigger prop = better.
With electric drive it will do "some" drag, but maybe 1/10 or less of
current.
Ie almost no drag, maybe 0.1 knots in speed.
This info is worth what you paid for it..
but its the current, typical,most common, consensus result.
On 28/01/2016 19:15, paul.kenna@kennalaw.com.au [electricboats] wrote:
>
> 1. When wearing my cruising skippers hat I'd like to repower with an
> electric motor, dump the diesel altogether, and rely on regeneration
> from the propeller together with solar and wind turbine to be self
> sufficient on a 10 to 30 day cruise.
>
>
> 2. As a racing skipper I really need to change my current 15x10 fixed
> two blade prop to a folding or feathering design as it robs me about a
> knot in boat speed. Can such a prop be used for a regen function and
> still feather when I need to go quickly and be used with electric
> propulsion?
>
>
> Paul
>
> Melbourne Australia
>
--
-hanermo (cnc designs)
Posted by: Hannu Venermo <gcode.fi@gmail.com>
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