X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 03 Dec 2008 21:15:23 -0500 Message-ID: X-Original-Return-Path: Received: from web36902.mail.mud.yahoo.com ([209.191.85.70] verified) by logan.com (CommuniGate Pro SMTP 5.2.10) with SMTP id 3326005 for lml@lancaironline.net; Mon, 01 Dec 2008 19:38:33 -0500 Received: (qmail 45303 invoked by uid 60001); 2 Dec 2008 00:38:33 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:X-Mailer:References:Date:From:Subject:To:MIME-Version:Content-Type:Message-ID; b=lWWYvzs1eUGuaI3/H0evqwxYCFBaAV9jPbnXo2+euECnDo7p+ZfQfEpeobJOUo2yROvpG3d4RpI3C7I4AbRihON1TLQ/3/Ztn/yxazNmuMcTJuwIPYicwWRzvZyowH+T0VzHMCb8qGuySTOAKbvcGgZd2xpNDMdHni+YuHefKoI=; X-YMail-OSG: pzq3QWcVM1kpADYM1dNEyyYz7BK5oVFWJK8_JA7fDXsBt9EtI_.1ug5IQ7abPnSr5KqccolW3ctGp7Gaq9XE3RVyZNQalPbgJ6gIW4AqbNu4F5ntFPvmcOAofrhr9un5tlZDG9nXEQ_81rsSIdhNAR9.4gsy6FZqKWrciOb0ybxEWIs- Received: from [149.32.224.34] by web36902.mail.mud.yahoo.com via HTTP; Mon, 01 Dec 2008 16:38:32 PST X-Mailer: YahooMailRC/1155.32 YahooMailWebService/0.7.260.1 References: X-Original-Date: Mon, 1 Dec 2008 16:38:32 -0800 (PST) From: Chris Zavatson Subject: Re: [LML] Elevator trim tab X-Original-To: Lancair Mailing List MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-957920680-1228178312=:39696" X-Original-Message-ID: <592707.39696.qm@web36902.mail.mud.yahoo.com> --0-957920680-1228178312=:39696 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Christian,=0AThe servo is definitely too fast in high speed flight.=A0 I us= e a switch that toggles between bus voltage and the output of a 5V voltage = regulator.=0Ahttp://www.n91cz.com/VideoClips/TrimTabDualRate_0001.wmv=0AMy = tab is about 2 inches wider than in the plans and still use most of the tra= vel to trim for approach configuration with full flaps.=0A=0AChris Zavatson= =0AN91CZ=0A360std.=0Awww.N91CZ.com=0A=0A=0A=0A=0A__________________________= ______=0AFrom: Christian Meier =0ATo: lml@lancaironline.n= et=0ASent: Monday, December 1, 2008 3:21:47 PM=0ASubject: [LML] Elevator tr= im tab=0A=0A=0AMy Elev. trimtab does not have enough authoroty during landi= ng configuration.=0AI have a Lancair 360 with 390X engine, long engine moun= t, MKII tail and no original trim spring system installed.=0AMy Trimtab is = 4" smaller=A0 than the manual says. My CofG at MTOW is about in the middle.= =0AOn long final with full trim up I need to pull about 1kg to keep a stabl= e descend.=0AWould it help to add the Trim spring system or should I increa= se the size of the trim tab, or both together?=0AThe reason of making the t= rimtab smaller was following: Many Lancairpilots told me=A0 that the elev t= rim is too agressive.=0AIt would be better to change the speed of the servo= . Is there an easy way to make the mac servo move slower?=0AChristian=0A=0A= =0A --0-957920680-1228178312=:39696 Content-Type: text/html; charset=us-ascii
Christian,
The servo is definitely too fast in high speed flight.  I use a switch that toggles between bus voltage and the output of a 5V voltage regulator.
My tab is about 2 inches wider than in the plans and still use most of the travel to trim for approach configuration with full flaps.
 
Chris Zavatson
N91CZ
360std.

From: Christian Meier <lancair@meier.cc>
To: lml@lancaironline.net
Sent: Monday, December 1, 2008 3:21:47 PM
Subject: [LML] Elevator trim tab

My Elev. trimtab does not have enough authoroty during landing configuration.
I have a Lancair 360 with 390X engine, long engine mount, MKII tail and no original trim spring system installed.
My Trimtab is 4" smaller  than the manual says. My CofG at MTOW is about in the middle.
On long final with full trim up I need to pull about 1kg to keep a stable descend.
Would it help to add the Trim spring system or should I increase the size of the trim tab, or both together?
The reason of making the trimtab smaller was following: Many Lancairpilots told me  that the elev trim is too agressive.
It would be better to change the speed of the servo. Is there an easy way to make the mac servo move slower?
Christian

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