--- In electricboats@
>
> Regen does not use the straight volts/rpm ratio...
From one point of view: generating electrical energy requires force. If your sails provide that force and you drag a propeller through the water to generate, that is going to slow the boat down unless you're already at hull speed, and there is a surplus of motive force.
Rule of thumb is 750 watts/horse power. So, generating 1000 watts (1KW) requires at least 1.5HP of force. I think of it this way: how would you like to drag behind your boat a running 3HP outboard facing the wrong (reverse) direction? Same is more or less true for wind gen's while sailing. You can't get something for nothing. What a DRAG!
A case for solar, and multi-fuel generator, not withstanding a prop configured to be driven not drive and a separate generator.
Sailonner
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