Mailing List flyrotary@lancaironline.net Message #56694
From: Chad Robinson <crobinson@medialantern.com>
Subject: Re: [FlyRotary] Re: The good news and the bad news......
Date: Thu, 15 Sep 2011 17:23:56 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>

That still leaves open the alternatives even if it's an issue: second toothed wheel behind or after the alternator pulley...

On Sep 15, 2011 5:15 PM, <CozyGirrrl@aol.com> wrote:
> Not side by side-
> In the placement described we are talking about them facing each other with
> a gap between the faces of 0.100~0.125 and the wheel face between them
> like an interrupter between optical sense and receive.
>
> Chrissi & Randi
> _www.CozyGirrrl.com_ (http://www.cozygirrrl.com/)
> CG Products, Custom Aircraft Hardware
> Chairwomen, Sun-N-Fun Engine Workshop
>
>
> In a message dated 9/15/2011 4:01:36 P.M. Central Daylight Time,
> alwick@juno.com writes:
>
> <concern is that the two sensors may have interference with each other.
>
> Highly unlikely. I have friends who measure integrity of signal with
> oscilloscope. Shielded device with highly directional sensitivity. Though
> they've never measured two side by side. Good theory, though.
>
> -al wick
>
> ----- Original Message -----
> From: _wrjjrs@aol.com_ (mailto:wrjjrs@aol.com)
> To: _Rotary motors in aircraft_ (mailto:flyrotary@lancaironline.net)
> Sent: Thursday, September 15, 2011 12:18 PM
> Subject: [FlyRotary] Re: The good news and the bad news......
>
>
> There is nothing wrong with that idea. The only concern is that the two
> sensors may have interference with each other. The idea is to put another
> toothed wheel rotated say a random _33.715_ (tel:33715) degrees relative to
> the first wheel. Now you place the second sensor rotated the same
> 33.7....etc degrees. So now when you switch sensors the timing is the same. Also the
> two sensors don't interfere with each other.
> Bill Jepson
>
> Connected by DROID on Verizon Wireless
>
>
> -----Original message-----
>
> From: Chad Robinson <crobinson@medialantern.com>
> To: Rotary motors in aircraft <flyrotary@lancaironline.net>
> Sent: Thu, Sep 15, 2011 17:45:46 GMT+00:00
> Subject: [FlyRotary] Re: The good news and the bad news......
>
>
>
> On 9/15/2011 1:21 PM, Tracy wrote:
> The CAS references the crank, not the rotor. Â Is that. It?
>
> I'm still confused about something myself. Everybody keeps talking about
> adding another CAS as requiring it to be "in a different position", with an
> offset. My 3rd-gen CAS sits on a small bracket just behind the toothed
> wheel on the front shaft. Past that toothed wheel there's a healthy (from
> memory: 1.5"?) gap from there to the back of the alternator pulley.
>
> What's to stop me from making a bracket and putting a second CAS in that
> gap, facing backward? It would be in exactly the same position as the
> current CAS, just facing backward. Would they interfere with one another? If so,
> as an alternative, what about using a second toothed wheel either on top of
> the first and before the alternator pulley, or if side loads were a
> concern, on the very end of the shaft past the pulley?
>
>
>
>
>
>
>
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