X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: <13brv3@bellsouth.net> Received: from imf24aec.mail.bellsouth.net ([205.152.59.72] verified) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTP id 944721 for flyrotary@lancaironline.net; Sun, 15 May 2005 10:14:37 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.72; envelope-from=13brv3@bellsouth.net Received: from ibm68aec.bellsouth.net ([65.6.194.9]) by imf24aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with ESMTP id <20050515141350.CEYN2028.imf24aec.mail.bellsouth.net@ibm68aec.bellsouth.net> for ; Sun, 15 May 2005 10:13:50 -0400 Received: from rd ([65.6.194.9]) by ibm68aec.bellsouth.net (InterMail vG.1.02.00.01 201-2136-104-101-20040929) with ESMTP id <20050515141350.KASP17253.ibm68aec.bellsouth.net@rd> for ; Sun, 15 May 2005 10:13:50 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Prop balancing? Date: Sun, 15 May 2005 09:13:50 -0500 Message-ID: <000001c55958$5157a660$6101a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C5592E.68819E60" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2527 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C5592E.68819E60 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit I'm not familiar with the Chadwick unit, but it probably operates on the same principle using a vibration sensor on the engine and an optical sensor to pick up reflective tape on one prop blade. No reason it shouldn't work. Thanks for the info Perry. The Chadwick was just as you describe, a vibration/optical sensor that mounted to the redrive plate, and a piece of tape on the prop. The guy who was running it admitted that it was probably something he just didn't know how to set. The unit actually belongs to his son, but he's working two jobs, and I never see him anymore. At least it's good to know that it should probably work. BTW, does anyone have any idea how much these things cost? I assume "a lot". Cheers, Rusty ------=_NextPart_000_0001_01C5592E.68819E60 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
I'm not familiar with the Chadwick unit, but it = probably=20 operates on the same principle using a vibration sensor on the engine = and an=20 optical sensor to pick up reflective tape on one prop blade. No reason = it=20 shouldn't work.

 
Thanks for the info Perry.  = The Chadwick was=20 just as you describe,  a vibration/optical sensor=20 that mounted to the redrive plate, and a piece of tape on the = prop. =20 The guy who was running it admitted that it was probably something he = just=20 didn't know how to set.  The unit actually belongs to his son, but = he's=20 working two jobs, and I never see him=20 anymore.  
 
At least it's good to know that it should = probably=20 work.  
 
BTW, does anyone have any idea how much these = things=20 cost?  I assume "a lot". 
 
Cheers,
Rusty
 
 
  
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