Hi Jay,
I'm looking forward to seeing your regen data, with how much power at what speeds. I know that you're sailing a large catamaran like Steve's so you should be able to sustain sailing speeds that smaller (30') monohulls can only dream of.
I'll be impressed if you can average 100W at 6kts and 0.5kW at 8kts from each prop. Of course with a 144V system, your charging voltage should be around 160V+, so 500W will read only 3A on a battery monitor. If you see the conditions to support it, I would figure that 9.5-10kts sustained might be able to generate 1kW per prop, giving you 2kW of regen for the boat. Of course, we know that the power isn't free, so I would expect the drag from 2kW of regen to be equivalent to a a 4hp outboard mounted on the back of the boat working against you. But for a big powerful catamaran, that drag may not be very noticible.
Anyway, please post your objective regen data when you can.
Thanks
Eric
Marina del Rey, CA
--- In electricboats@yahoogroups.com, "sailawayjnl" <groups@...> wrote:
>
> So with all the talk of regeneration learn first hand. The GeniGreen Electric Project Catamaran will Leave Pass Christian, Mississippi for Marco Island Florida (South of Naples) on the 5 or 6th of November 4 day sail Min. All men, need five or six max. You will learn all you ever wanted to know about the benefits of electric sailing.
> Transportation is available and at your own expense.
> Jay
> 305.619.0201
>
> It will be around the clock sailing 3 hour shifts expect min of 1/2 to 2 kW regeneration. Not just talk but action see first hand.
>
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