X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [24.25.9.100] (HELO ms-smtp-01-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTP id 940609 for flyrotary@lancaironline.net; Wed, 11 May 2005 19:17:12 -0400 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.100; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-189-178.carolina.res.rr.com [24.74.189.178]) by ms-smtp-01-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id j4BNGPLw008907 for ; Wed, 11 May 2005 19:16:26 -0400 (EDT) Message-ID: <003101c5567f$796f9bc0$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: 9.7 Rotors Date: Wed, 11 May 2005 19:16:34 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_002E_01C5565D.F230AA30" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_002E_01C5565D.F230AA30 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MessageI can honestly say I came up with it myself - or at least I don't = recall anyone ever using this method. I did it when I had all three = compression rotors and looking at them couldn't tell much difference. = So the light bulb went on and I decided that the depth of the depression = was probably less for the higher compression rotors (I guess they could = have enlarged the area - but apparently did not). Ed ----- Original Message -----=20 From: Russell Duffy=20 To: Rotary motors in aircraft=20 Sent: Wednesday, May 11, 2005 4:57 PM Subject: [FlyRotary] Re: 9.7 Rotors Ok, Georges, found my notes. for the 9.7:1 the depth is 4mm. 9.4:1 = is 5.5mm and the 9.1 is 7 mm. Ed=20 Did you come up with this, or read it somewhere else? I just checked = a 9.4 and a 9.7, and it seems to work. =20 Thanks, Rusty (squirreling this little tidbit away) ------=_NextPart_000_002E_01C5565D.F230AA30 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
I can honestly say I came up with it myself - or at least I don't = recall=20 anyone ever using this method.  I did it when I had all three = compression=20 rotors and looking at them couldn't tell much difference.  So the = light=20 bulb went on and I decided that the depth of the depression was probably = less=20 for the higher compression rotors (I guess they could have enlarged the = area -=20 but apparently did not).
 
Ed
----- Original Message -----
From:=20 Russell=20 Duffy
Sent: Wednesday, May 11, 2005 = 4:57=20 PM
Subject: [FlyRotary] Re: 9.7 = Rotors

Ok, Georges, found my notes.  = for the=20 9.7:1 the depth is 4mm.  9.4:1  is 5.5mm and the 9.1 is 7 = mm.
 
Ed 
 
Did you = come up with=20 this, or read it somewhere else?  I just checked a 9.4 and a 9.7, = and it=20 seems to work.  
 
Thanks,
Rusty = (squirreling=20 this little tidbit=20 away) 
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