On 24 January 2011 17:53, Kirk Wallace <kwall...@wallacecompany.com> wrote:

> My understanding is that these are _very_ inefficient as motors, let
> alone as alternators.

One issue will be that to get anywhere near magnetic saturation (and
hence full potential) you will need a current similar to the max
output current of the alternator, typically 150A or so.

-- 
atp
"Torque wrenches are for the obedience of fools and the guidance of wise men"

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