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Date: Tue, 22 Feb 2005 17:43:41 -0500
From: Ernest Christley <echristl@cisco.com>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: 2nd battery Re: Amps required to run  engine&amp-
 hours available
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Bill Dube wrote:

>
>>  The claim that it won't overvoltage is absolutely false.  In the 
>> bottom of the picture on the right.  That is the regulator.  It works 
>> by dumping excess energy to ground.
>
>
>         How do you know this?
>

Because that is how PM generators work. 

Ok. You caught me.  I don't know that is what it is.  But do a google 
search on motorcycle regulators and you'll find an awful lot of 
generators and regulator that look exactly like this, along with 
explanations of how the work and how they break.

>>
>> Harley Davidson makes a similar setup for their Goldwing bikes that 
>> is 35A.  That is the one I want to look at.
>
>
>         Do you have a web page or a picture for that unit?
>
>

WooHoo!  I just found one that I was looking at earlier.  But my $100 
figure was wrong.  More like...you guessed it...$250.  The $100 was just 
the stator.

http://www.chopperscycle.com/page/VTS/CTGY/40-173

Check the Spyke and Compu-Fire systems near the bottom of the page.

Now, if the stator can be bolted to the back of the PSRU, and the rotor 
bolted to the flex plate (stator may require a spacer to fit inside the 
rotor)....