X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [24.25.9.101] (HELO ms-smtp-02-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTP id 944840 for flyrotary@lancaironline.net; Sun, 15 May 2005 14:36:10 -0400 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.101; 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-02-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id j4FIZN0W014760 for ; Sun, 15 May 2005 14:35:24 -0400 (EDT) Message-ID: <00f401c5597c$e4dd6ae0$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Prop balancing? Date: Sun, 15 May 2005 14:35:39 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00F1_01C5595B.5D950370" 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_00F1_01C5595B.5D950370 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MessageRusty, I had my old engine/psru balanced while attending the MEmphis rotary = flyin several years ago. The guy said the "sweet spot" to put the extra = weight would wander a bit (presumably because of the gearlash??) and it = did take him a bit longer as he tried the weight in a couple of = different positions. But, he succeeded and reduced the vibration a = noticable amount. =20 I am going to try to get this one balanced before heading for Charlies = flyin at the end of the month. Ed A ----- Original Message -----=20 From: Russell Duffy=20 To: Rotary motors in aircraft=20 Sent: Saturday, May 14, 2005 10:56 PM Subject: [FlyRotary] Prop balancing? Greetings, There's an A&P at my airport that does prop balancing, and he just did = a friends RV-7 this morning. When he was done, I asked him to do mine. = He hooked everything up, got an rpm reading, but when he tried to = actually take a measurement, it would only say "error". We tried it = several times, and it wouldn't work, so no balancing for me :-( The instrument was a Chadwick Vibrex = http://www.e-equipments.co.uk/vibrex2000.htm and it sure looks like it = should work. The question I have is whether it can cope with a gear = drive. =20 Has anyone had their prop balance by the same folks that do Lycosaurs? = Did the instrument work for you? Thanks, Rusty PS- Get your engine balanced David, so you won't be wondering if that = vibration is the prop, or the engine. I sure wish I had balanced my = engine, because now I just don't know. ------=_NextPart_000_00F1_01C5595B.5D950370 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
Rusty,
 
I had my old engine/psru balanced while = attending the=20 MEmphis rotary flyin several years ago.  The guy said the "sweet = spot" to=20 put the extra weight would wander a bit (presumably because of the = gearlash??)=20 and it did take him a bit longer as he tried the weight in a couple of = different=20 positions.  But, he succeeded and reduced the vibration a noticable = amount. 
 
I am going to try to get this one balanced = before heading=20 for Charlies flyin at the end of the month.
 
Ed A
----- Original Message -----
From:=20 Russell=20 Duffy
Sent: Saturday, May 14, 2005 = 10:56=20 PM
Subject: [FlyRotary] Prop=20 balancing?

Greetings,
 
There's an = A&P at my=20 airport that does prop balancing, and he just did a friends RV-7 this=20 morning.  When he was done, I asked him to do mine.  He = hooked=20 everything up, got an rpm reading, but when he tried to actually take = a=20 measurement, it would only say "error".   We tried it = several times,=20 and it wouldn't work, so no balancing for me :-(
 
The = instrument was a=20 Chadwick Vibrex http://www.e-equipm= ents.co.uk/vibrex2000.htm  =20 and it sure looks like it should work.  The question I have is = whether it=20 can cope with a gear drive. 
 
Has anyone = had their prop=20 balance by the same folks that do Lycosaurs?  Did the instrument = work for=20 you?
 
Thanks,
Rusty
 
 
PS- Get your = engine=20 balanced David, so you won't be wondering if that vibration is the = prop, or=20 the engine.  I sure wish I had balanced my engine, because now I = just=20 don't know. 
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