X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 21 Feb 2012 11:30:42 -0500 Message-ID: X-Original-Return-Path: Received: from elasmtp-masked.atl.sa.earthlink.net ([209.86.89.68] verified) by logan.com (CommuniGate Pro SMTP 5.4.4) with ESMTP id 5408258 for lml@lancaironline.net; Tue, 21 Feb 2012 10:19:16 -0500 Received-SPF: none receiver=logan.com; client-ip=209.86.89.68; envelope-from=panelmaker@earthlink.net DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=qjBzwFVh6Xa+1wnGAtMWb+FakezV3OwPu65NJuXHgPHav36ONsxbw0MdrTJ8g0VI; h=Received:From:To:References:Subject:Date:Message-ID:MIME-Version:Content-Type:X-Mailer:Thread-Index:In-Reply-To:X-MimeOLE:X-ELNK-Trace:X-Originating-IP; Received: from [209.173.71.64] (helo=COMPUTER1) by elasmtp-masked.atl.sa.earthlink.net with esmtpa (Exim 4.67) (envelope-from ) id 1RzrUB-0002f2-0x for lml@lancaironline.net; Tue, 21 Feb 2012 10:18:35 -0500 From: "Jim Nordin" X-Original-To: "'Lancair Mailing List'" References: Subject: 360 rudder balance X-Original-Date: Tue, 21 Feb 2012 09:18:42 -0600 X-Original-Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0066_01CCF079.CE317AC0" X-Mailer: Microsoft Office Outlook 11 Thread-Index: AczwqY6hGH/VPg5dR3GRySU+h00N8gAAF/ZA In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6157 X-ELNK-Trace: bdfc62829fd2a80cc8ad50643b1069f8239a348a220c26092f88c05822f9b953de5fd9e38a5abea82601a10902912494350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 209.173.71.64 This is a multi-part message in MIME format. ------=_NextPart_000_0066_01CCF079.CE317AC0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Hummmm . correct me if I'm wrong. Balance of control surfaces is attained when the component (aileron or elevator for example) hung at the center of rotation and given a perturbation (trailing edge pushed down) minimally returns to the level condition or better a small nose down condition. Any other condition (leading edge high above level, trailing edge below level) warrants adding weight to make the nose (leading edge) to settle below level. Nose heavy is the point here. Any other condition may result in flutter. Jim _____ From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Charles Brown Sent: Tuesday, February 21, 2012 8:02 AM To: lml@lancaironline.net Subject: [LML] Re: 360 rudder balance They should stay in any position where you let them go. They should not return to level. If they are out of balance, they will have some preferred orientation (as you say, will move up or down). Charley Brown MS Aero/Astro Engineering On Feb 20, 2012, at 6:51 AM, Bill Bradburry wrote: I have a question about balancing the flight surfaces. If they are in balance, should they return to level from where ever you move them to, or should they just stay where you put them. I assume that if they are out of balance they will either move up or down from level depending on whether you need to add or remove weight. Bill B ------=_NextPart_000_0066_01CCF079.CE317AC0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Hummmm … correct me if = I’m wrong.

Balance of control surfaces is = attained when the component (aileron or elevator for example) hung at the center = of rotation and given a perturbation (trailing edge pushed down) minimally = returns to the level condition or better a small nose down condition. Any other condition (leading edge high above level, trailing edge below level) = warrants adding weight to make the nose (leading edge) to settle below = level.

Nose heavy is the point here. Any = other condition may result in flutter.

Jim

From: = Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Charles Brown
Sent: Tuesday, February = 21, 2012 8:02 AM
To: = lml@lancaironline.net
Subject: [LML] Re: 360 = rudder balance

 

They should stay in any position where you let them go. =  They should not return to level.  If they are out of balance, they will = have some preferred orientation (as you say, will move up or = down).

 

Charley Brown

MS Aero/Astro Engineering

 

On Feb 20, 2012, at 6:51 AM, Bill Bradburry = wrote:



I have a question about balancing = the flight surfaces.  If they are in balance, should they return to = level from where ever you move them to, or should they just stay where you put = them.

 

I assume that if they are out of = balance they will either move up or down from level depending on whether you = need to add or remove weight.

 

Bill = B

 

 

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