X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 12 Aug 2010 14:28:09 -0400 Message-ID: X-Original-Return-Path: Received: from imr-da04.mx.aol.com ([205.188.105.146] verified) by logan.com (CommuniGate Pro SMTP 5.3.8) with ESMTP id 4428133 for lml@lancaironline.net; Thu, 12 Aug 2010 10:21:09 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.188.105.146; envelope-from=Sky2high@aol.com Received: from imo-ma01.mx.aol.com (imo-ma01.mx.aol.com [64.12.78.136]) by imr-da04.mx.aol.com (8.14.1/8.14.1) with ESMTP id o7CEKQZ3002046 for ; Thu, 12 Aug 2010 10:20:26 -0400 Received: from Sky2high@aol.com by imo-ma01.mx.aol.com (mail_out_v42.9.) id q.dee.c85d695 (34897) for ; Thu, 12 Aug 2010 10:20:24 -0400 (EDT) Received: from magic-d23.mail.aol.com (magic-d23.mail.aol.com [172.19.146.157]) by cia-da01.mx.aol.com (v129.4) with ESMTP id MAILCIADA016-88514c6403272f0; Thu, 12 Aug 2010 10:20:23 -0400 From: Sky2high@aol.com X-Original-Message-ID: <310f9.266990a2.39955d27@aol.com> X-Original-Date: Thu, 12 Aug 2010 10:20:23 EDT Subject: Re: [LML] Re: Prop Balance X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_310f9.266990a2.39955d27_boundary" X-Mailer: AOL 9.5 sub 155 X-AOL-IP: 24.15.17.119 X-Spam-Flag:NO X-AOL-SENDER: Sky2high@aol.com --part1_310f9.266990a2.39955d27_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit 1. prop blade has a piece of reflective tape attached. 2. Sensor for rpm and vibration are mounted to engine case bolt. 3. engine is run to desired rpm (2500 or higher) 4. Brain box will display angle from tape to worse reading in ips. 5. Data can be charted and required weight and location(s) determined. 6. Weights (washers and bolts weighed on a very accurate scale) can be attached to starter ring holes (lycoming) or spinner back plate. Grayhawk In a message dated 8/12/2010 7:20:50 A.M. Central Daylight Time, N4ZQ@comcast.net writes: Could one of you describe the process of dynamically balancing a typical prop? My old brain cannot visualize how weights are attached. Angier Ames N4ZQ -- For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.html --part1_310f9.266990a2.39955d27_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

1. prop blade has a piece of reflective tape attached.

2. Sensor for rpm and vibration are mounted to engine case bolt.

3. engine is run to desired rpm (2500 or higher)

4. Brain box will display angle from tape to worse reading in ips.

5. Data can be charted and required weight and location(s)=20 determined.

6. Weights (washers and bolts weighed on a very accurate scale) = can be=20 attached to starter ring holes (lycoming) or spinner back plate.

Grayhawk

In a message dated 8/12/2010 7:20:50 A.M. Central Daylight Time,=20 N4ZQ@comcast.net writes:

Could=20 one of you describe the process of dynamically balancing a
typ= ical=20 prop?
My old brain cannot visualize how weights are attached.

= Angier=20 Ames
N4ZQ

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For archives and unsub=20 http://mail.lancaironline.net:81/lists/lml/List.html

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