Return-Path: Received: from [24.25.9.102] (HELO ms-smtp-03-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.3c3) with ESMTP id 884247 for flyrotary@lancaironline.net; Tue, 19 Apr 2005 23:06:18 -0400 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.102; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-185-127.carolina.res.rr.com [24.74.185.127]) by ms-smtp-03-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id j3K35VY5018467 for ; Tue, 19 Apr 2005 23:05:32 -0400 (EDT) Message-ID: <000e01c54555$d257bff0$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" Subject: New Rotors! Date: Tue, 19 Apr 2005 23:05:33 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000B_01C54534.4A3D8990" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_000B_01C54534.4A3D8990 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Got the new rotors today - first time I've ever seen a new rotor - the = are bright metallic {:>).=20 =20 The depth of the apex seal slot on the new rotors ranged from 9.65mm to = 9.77 mm. Interestingly the width of the bottom of the apex slot was = 1.88mm but the top was narrower at 1.778mm. I noticed that the lip of = the apex seal slot had a tiny burr of metal along it as if they were not = using a sharp enough tool or else pushing it along too fast. Or perhaps = no one took the time to deburr the slot. Just in case any of you ever wonder whether you are looking at a 9.7:1 = rotor or some other rotor, there is a fairly easy way to tell. Lay a = straight edge across the depression in the rotor and measure from its = bottom to the center of the depression, it should measure right at 4 mm. = The 9.1 measure around 7mm for comparison. Just thought you might want = to know. Ed Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com ------=_NextPart_000_000B_01C54534.4A3D8990 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Got the new rotors today - first time = I've ever=20 seen a new rotor - the are bright metallic {:>). 
 
The depth of the apex seal slot on the = new rotors=20 ranged from 9.65mm to 9.77 mm.  Interestingly the width of the = bottom of=20 the apex slot was 1.88mm but the top was narrower at 1.778mm.  I = noticed=20 that the lip of the apex seal slot had a tiny burr of metal along it as = if they=20 were not using a sharp enough tool or else pushing it along too = fast.  Or=20 perhaps no one took the time to deburr the slot.
 
Just in case any of you ever wonder whether you are looking at a = 9.7:1=20 rotor or some other rotor, there is a fairly easy way to tell.  Lay = a=20 straight edge across the depression in the rotor and measure from its = bottom to=20 the center of the depression, it should measure right at 4 mm.  The = 9.1=20 measure around 7mm for comparison.  Just thought you might want to=20 know.
 
Ed
 
Rv-6A N494BW Rotary = Powered
Matthews,=20 NC
eanderson@carolina.rr.com
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