X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 18 Mar 2014 15:13:41 -0400 Message-ID: X-Original-Return-Path: Received: from nm44-vm7.bullet.mail.bf1.yahoo.com ([216.109.115.31] verified) by logan.com (CommuniGate Pro SMTP 6.0.9e) with ESMTPS id 6785621 for lml@lancaironline.net; Tue, 18 Mar 2014 13:34:32 -0400 Received-SPF: none receiver=logan.com; client-ip=216.109.115.31; envelope-from=chris_zavatson@yahoo.com Received: from [66.196.81.171] by nm44.bullet.mail.bf1.yahoo.com with NNFMP; 18 Mar 2014 17:33:57 -0000 Received: from [98.139.212.232] by tm17.bullet.mail.bf1.yahoo.com with NNFMP; 18 Mar 2014 17:33:57 -0000 Received: from [127.0.0.1] by omp1041.mail.bf1.yahoo.com with NNFMP; 18 Mar 2014 17:33:57 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 156435.1554.bm@omp1041.mail.bf1.yahoo.com Received: (qmail 25228 invoked by uid 60001); 18 Mar 2014 17:33:57 -0000 DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:X-Rocket-MIMEInfo:X-Mailer:References:Message-ID:Date:From:Reply-To:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=bpKgTMYX9/aeU0mqzxD8v+LxPZfADC475eG+74mlcJukHSZkA7e7SBccvqXksAYlE4Jei46+K5R3jiyA39HPWUn4bJPUWyMYVOsGkhoUSEMU1Qx8N4cD+oiq6Wdm8x/yElI3rzDdnNgGSya+bAAk0C6qjsZ7wDj9IhTAXZrq9g0=; X-YMail-OSG: WUEkVcYVM1lZXq1VuBiVU6GCQ634ysiSK2yMNNNWe40hH5f 2zQGsd8c6UhR0WPA7mGjzYHd4.0IpKe2d3B22Tz9jvrFfnKaZ8kPCrTeJe8N eX5nl5s5uhko3lRtV7alKd0LGbR_XjHHyLfvLvqtvZG2mPWdi6Ng7rA00X4W avTrwLQnU5rWVbJz109gK4DVz4fq.6uySZN44UOdI2tAAHqzYn2dmDCKZrZH z3TkHwWp3aPyp8Vlw22JqMeEWisns7tBey_SVR2S5OnS7vhvoeqO8mLP1fw_ CnsfN2Z.HdCy7BBtXucS2V9wpnd6tPWojKAwJan2ZJEFvnhn42VmC3nMtmLZ I5v6cCx5Wc.tmqHdSmyK0BK7MX6aJnv0.1reeY6GmJ62Ejrt6DovCH6jbnAN 6xY0qiVROrJtbmNyc38rG6FGi63Qp.vRkzI.FGrCItgedqiF6z_LN4CeNRHD BJp6G585jUHnm693vWoKK9QbNyJgEd_iutOVTWjaLr.SYopV0XZVXJwF_Qog 4SvZWYwOJdRBlML0SLifUyyGupF3.zT4JIu1bBd9LFhVn49SMKbAVoHmzlhn 1Wg1VdIS9Lx691v3EYa3ZDI38PoyGEmSVTxzJpO0EQXvQE1maGJluC61YdVB 06i5_fLcNO64zzMORr1Le Received: from [172.14.16.72] by web161205.mail.bf1.yahoo.com via HTTP; Tue, 18 Mar 2014 10:33:57 PDT X-Rocket-MIMEInfo: 002.001,SmFjaywKVGhlIGJvYi13ZWlnaHQgY2hhbmdlcyB0aGUgc2xvcGUgb2YgdGhlIHN0aWNrIGZvcmNlIGdyYWRpZW50LsKgIEl0IGlzIGFscmVhZHkgdmVyeSBzaGFsbG93LsKgIFJlbW92aW5nIHRoZSB3ZWlnaHQgd291bGQgbWFrZSBpdCBldmVuIG1vcmUgc28uwqDCoApXaGF0IGlzIHRoZSBuYXR1cmUgb2YgdGhlwqAnaW5jb25zaXN0ZW50JyBhbHRpdHVkZSBob2xkLCBhIGxvbmcgYW5kIHNsb3cgbWVhbmRlcmluZyAobGlrZWx5IGEgc3RhdGljIHNvdXJjZSBsYWcgaXNzdWUpwqBvciBhIHNob3J0IGFuZCBxdWkBMAEBAQE- X-Mailer: YahooMailWebService/0.8.178.641 References: X-Original-Message-ID: <1395164037.12917.YahooMailNeo@web161205.mail.bf1.yahoo.com> X-Original-Date: Tue, 18 Mar 2014 10:33:57 -0700 (PDT) From: Chris Zavatson Reply-To: Chris Zavatson Subject: Re: [LML] Autopilot servos and L360 bobweight X-Original-To: Lancair Mailing List In-Reply-To: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="537826103-1180795696-1395164037=:12917" --537826103-1180795696-1395164037=:12917 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Jack,=0AThe bob-weight changes the slope of the stick force gradient.=A0 It= is already very shallow.=A0 Removing the weight would make it even more so= .=A0=A0=0AWhat is the nature of the=A0'inconsistent' altitude hold, a long = and slow meandering (likely a static source lag issue)=A0or a short and qui= ck movement (likely a gain or sensitivity issue).=0A=0AChris Zavatson=0AN91= CZ=0A360std=0Ahttp://www.n91cz.com/=0A=0A=0A=0AOn Tuesday, March 18, 2014 6= :55 AM, Jack Dysart wrote:=0A =0AMy Tru Trak autopil= ot altitude hold is inconsistent, and opinions are that the servo had diffi= culty working properly because of the mass of the bobweight on the elevator= idler arm.=A0 One possibility is to remove the weight and expect more pitc= h sensitivity (lighter stick force) in turns.=A0 Has anyone found other alt= ernatives?=0AWhat if the mass of the bobweight is reduced?=0A=A0=0AMy servo= is behind the seat and connected to a ring clamp on the elevator control t= ube with a smaller, roughly parallel, rod with bearing ends.=0A=A0=0AJack D= ysart =A0=A0=A0 --537826103-1180795696-1395164037=:12917 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
Jack,
The bob-weight changes the slope of the stick force grad= ient.  It is already very shallow.  Removing the weight would mak= e it even more so.  
What is the nature of= the 'inconsistent' altitude hold, a long and slow meandering (likely = a static source lag issue) or a short and quick movement (likely a gai= n or sensitivity issue).

Chris Zavatson
N91CZ
360std<= /span>
=

On Tuesday, March 18, 2014 6:55 = AM, Jack Dysart <jldysart1@gmail.com> wrote: