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Date: Fri, 03 Dec 2010 22:06:05 -0500
From: Ernest Christley <echristley@nc.rr.com>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: intake blower update
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On 12/03/2010 05:21 PM, josrph berki wrote:
> Ernest,
>
> Nice job, I like the idea of eliminating the alternator up front.  I was
> wondering if a timing wheel could be incorporated for injector or ignition
> triggering?  What will be the rating of the alternator (amps)?
>    

The generator is rated for 40A.  A little low, but sufficient for the 
day VFR flying I'll be doing.

The starter ring closely resembles the timing wheel on the front of my 
engine....just a LOT larger, and not missing any teeth.  It is certainly 
feasible that some sort of optical sensor could be incorporating into 
the blower cowling, with the starter ring gear acting as interrupters to 
give accurate timing, and a single hole locate further in to locate #1 TDC.

It is not something I'm willing to tackle at this time, though.  With 
the alternator gone, I put a timing wheel where the pulleys were.  Some 
of my small aluminum castings were mounts for the timing wheel sensors.  
I like the idea of not having to run small wires all the way across the 
engine for a sensitive reluctance sensor.