X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from outbound-mail.dca.untd.com ([64.136.47.15] verified) by logan.com (CommuniGate Pro SMTP 5.4.1) with SMTP id 5126045 for flyrotary@lancaironline.net; Thu, 15 Sep 2011 17:01:29 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.136.47.15; envelope-from=alwick@juno.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=juno.com; s=alpha; t=1316120456; bh=47DEQpj8HBSa+/TImW+5JCeuQeRkm5NMpJWZG3hSuFU=; l=0; h=Message-ID:From:To:Subject:Date:Content-Type; b=Yi7M5apMGpF20LD4ibn107arKanzUIhelUPKOzwS+6R9m8b41XJ6tE1SN9FqYHb3C nnrllPChVqOUlzSXSFZscqylrUcb6He+0KI+LW+lxxdacDwgvG/sUJkYccmYslaHQ9 JC/+MtxAv7LxlhBK3tWG8vPD7q2kWGy3K+rUlHYo= Received: from Penny (50-39-184-136.bvtn.or.frontiernet.net [50.39.184.136]) by smtpout05.dca.untd.com with SMTP id AABHHE36CA3XEK3S for (sender ); Thu, 15 Sep 2011 14:00:50 -0700 (PDT) Message-ID: <3B807A5534AD49B2841C71E90E4F103B@Penny> From: "Al Wick" To: "Rotary motors in aircraft" References: In-Reply-To: Subject: Re: [FlyRotary] Re: The good news and the bad news...... Date: Thu, 15 Sep 2011 14:00:48 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_02E6_01CC73AF.DF314180" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Windows Mail 6.0.6002.18197 X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6002.18463 X-UNTD-BodySize: 6881 X-ContentStamp: 16:8:128987779 X-MAIL-INFO:03700065157ddd891938e4f4155584c48511a165d021382505011460396081fd8074bd7104a13d4d4d090d44055129d5ad59b538f53de1e5a5e9e170a0a011c02020a0adb0e5f9b159b1c955f0d0b1 X-UNTD-OriginStamp: L941HVjjYzDhN3itp//mkFtR4uzCwK3BNhsKZuLdNdl1N0PeBdTrow== X-UNTD-Peer-Info: 10.171.42.35|smtpout05.dca.untd.com|smtpout05.dca.untd.com|alwick@juno.com This is a multi-part message in MIME format. ------=_NextPart_000_02E6_01CC73AF.DF314180 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable To: Rotary motors in aircraft 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:=20 The CAS references the crank, not the rotor. =C2 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? ------=_NextPart_000_02E6_01CC73AF.DF314180 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
<concern is that the two sensors may have = interference=20 with each other.
 
Highly unlikely. I have friends who measure = integrity of=20 signal with oscilloscope. Shielded device with highly directional = sensitivity.=20 Though they've never measured two side by side. Good theory, though.=20
 
-al wick
----- Original Message -----
From:=20 wrjjrs@aol.com
Sent: Thursday, September 15, = 2011 12:18=20 PM
Subject: [FlyRotary] Re: The = good news=20 and the bad news......

There is = nothing wrong=20 with that idea. The only concern is that the two sensors may have = interference=20 with each other. The idea is to put another toothed wheel rotated say = a random=20 33.715 degrees relative to the first wheel. = Now you=20 place the second sensor rotated the same 33.7....etc degrees. So now = when you=20 switch sensors the timing is the same. Also the two sensors don't = interfere=20 with each other.
Bill Jepson

Connected by DROID = on Verizon=20 Wireless


-----Original = message-----
From: = Chad=20 Robinson <crobinson@medialantern.com>
To: Rotary = motors in=20 aircraft <flyrotary@lancaironline.net>
Sent: Thu, = Sep 15,=20 2011 17:45:46 GMT+00:00
Subject: [FlyRotary] Re: The good = news and=20 the bad news......

On 9/15/2011 1:21 PM, = Tracy wrote:=20
The CAS references the crank, not = the rotor.=20 =C2  Is that. It?
I'm still confused about = something=20 myself. Everybody keeps talking about adding another CAS as = requiring it to=20 be "in a different position", with an offset. My 3rd-gen CAS sits on = a small=20 bracket just behind the toothed wheel on the front shaft. Past that = toothed=20 wheel there's a healthy (from memory: 1.5"?) gap from there to the = back of=20 the alternator pulley.

What's to stop me from making a = bracket and=20 putting a second CAS in that gap, facing backward? It would be in = exactly=20 the same position as the current CAS, just facing backward. Would = they=20 interfere with one another? If so, as an alternative, what about = using a=20 second toothed wheel either on top of the first and before the = alternator=20 pulley, or if side loads were a concern, on the very end of the = shaft past=20 the = pulley?

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