X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [24.25.9.102] (HELO ms-smtp-03-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 5.0c3) with ESMTP id 749829 for flyrotary@lancaironline.net; Tue, 04 Oct 2005 21:54:56 -0400 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.102; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-025-165.carolina.res.rr.com [24.74.25.165]) by ms-smtp-03-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id j951sAfV017241 for ; Tue, 4 Oct 2005 21:54:11 -0400 (EDT) Message-ID: <001401c5c94f$7dc7e9a0$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" Subject: counterweights Date: Tue, 4 Oct 2005 21:52:49 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0011_01C5C92D.F6656A80" 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_0011_01C5C92D.F6656A80 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Dave, a though occurred to me. Since you do know the weight of the = rotors for each compression and year (see Mazdatirx chart below), if = any one had the counter weights for a know year, I imagine there is a = proportional ratio between rotor weight and counter weight. In other = words, the lightest rotors should take the lightest counter weights. = Heaviest rotors the heaviest counterweights. In fact if you had two = data points for two different compression rotors you could probably come = close to figuring out the third counter weight weight. Just a though. Ed A Engine Year Compression Weight (Grams) Weight (Pounds)=20 12A 76-82 9.4 4603 10.15=20 12A 83-85 9.4 4353 9.60=20 13B 74-78 9.2 5253 11.58=20 13B 84-85 9.4 5253 11.58=20 13B N/T 86-88 9.4 4553 10.04=20 13B Turbo 86-88 8.5 4553 10.04=20 13B N/T 89-92 9.7 4328 9.54=20 13B Turbo 89-92 9.0 4328 9.54=20 13B T/T 93-95 9.0 4328 9.54=20 Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com ------=_NextPart_000_0011_01C5C92D.F6656A80 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Dave, a though occurred to me.  Since you = do know the=20 weight of the rotors for each compression and year (see Mazdatirx chart = below),=20 if  any one had the counter weights for a know year, I imagine = there is a=20 proportional ratio between rotor weight and counter weight.  In = other=20 words, the lightest rotors should take the lightest counter = weights. =20 Heaviest rotors the heaviest counterweights.  In fact if you had = two data=20 points for two different compression rotors you could probably come = close to=20 figuring out the third counter weight weight.
 
Just a though.
 
Ed A
Engine Year Compression Weight (Grams) Weight (Pounds)
12A 76-82 9.4 4603 10.15
12A 83-85 9.4 4353 9.60
13B 74-78 9.2 5253 11.58
13B 84-85 9.4 5253 11.58
13B N/T 86-88 9.4 4553 10.04
13B Turbo 86-88 8.5 4553 10.04
13B N/T 89-92 9.7 4328 9.54
13B Turbo 89-92 9.0 4328 9.54
13B T/T 93-95 9.0 4328 9.54
 
 
Ed Anderson
Rv-6A N494BW Rotary = Powered
Matthews,=20 NC
eanderson@carolina.rr.com
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