X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 18 Mar 2014 10:41:10 -0400 Message-ID: X-Original-Return-Path: <2thman1@gmail.com> Received: from mail-pb0-f42.google.com ([209.85.160.42] verified) by logan.com (CommuniGate Pro SMTP 6.0.9e) with ESMTPS id 6785107 for lml@lancaironline.net; Tue, 18 Mar 2014 10:06:41 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.160.42; envelope-from=2thman1@gmail.com Received: by mail-pb0-f42.google.com with SMTP id rr13so7333438pbb.15 for ; Tue, 18 Mar 2014 07:06:06 -0700 (PDT) X-Received: by 10.68.136.162 with SMTP id qb2mr32392952pbb.88.1395151565940; Tue, 18 Mar 2014 07:06:05 -0700 (PDT) X-Original-Return-Path: <2thman1@gmail.com> Received: from [10.64.107.42] ([166.170.40.95]) by mx.google.com with ESMTPSA id z3sm88413715pas.15.2014.03.18.07.06.04 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 18 Mar 2014 07:06:04 -0700 (PDT) References: In-Reply-To: Mime-Version: 1.0 (1.0) Content-Type: multipart/alternative; boundary=Apple-Mail-8B43EB80-919A-4FCA-83D9-95407D72FA53 X-Original-Message-Id: Content-Transfer-Encoding: 7bit X-Mailer: iPad Mail (11D167) From: John Barrett <2thman1@gmail.com> Subject: Re: [LML] Autopilot servos and L360 bobweight X-Original-Date: Tue, 18 Mar 2014 07:06:01 -0700 X-Original-To: Lancair Mailing List --Apple-Mail-8B43EB80-919A-4FCA-83D9-95407D72FA53 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Bob weight is there to balance the control surface . Out of balance can carr= y risk of flutter. Be sure to research before changing that relationship. John Sent from my iPad > On Mar 18, 2014, at 6:52 AM, "Jack Dysart" wrote: >=20 > My Tru Trak autopilot altitude hold is inconsistent, and opinions are that= the servo had difficulty working properly because of the mass of the bobwei= ght on the elevator idler arm. One possibility is to remove the weight and e= xpect more pitch sensitivity (lighter stick force) in turns. Has anyone fou= nd other alternatives? > What if the mass of the bobweight is reduced? > =20 > My servo is behind the seat and connected to a ring clamp on the elevator c= ontrol tube with a smaller, roughly parallel, rod with bearing ends. > =20 > Jack Dysart =20 --Apple-Mail-8B43EB80-919A-4FCA-83D9-95407D72FA53 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 7bit

Bob weight is there to balance the control surface . Out of balance can carry risk of flutter. Be sure to research before changing that relationship.

John

Sent from my iPad

On Mar 18, 2014, at 6:52 AM, "Jack Dysart" <jldysart1@gmail.com> wrote:

My Tru Trak autopilot altitude hold is inconsistent, and opinions are that the servo had difficulty working properly because of the mass of the bobweight on the elevator idler arm. One possibility is to remove the weight and expect more pitch sensitivity (lighter stick force) in turns. Has anyone found other alternatives?
What if the mass of the bobweight is reduced?

My servo is behind the seat and connected to a ring clamp on the elevator control tube with a smaller, roughly parallel, rod with bearing ends.

Jack Dysart

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