X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sun, 27 Jul 2008 07:56:29 -0400 Message-ID: X-Original-Return-Path: Received: from mailrelay.embarq.synacor.com ([208.47.184.3] verified) by logan.com (CommuniGate Pro SMTP 5.2.5) with ESMTP id 3044117 for lml@lancaironline.net; Sun, 27 Jul 2008 06:46:03 -0400 Received-SPF: pass receiver=logan.com; client-ip=208.47.184.3; envelope-from=liegner@embarqmail.com X-Original-Return-Path: X_CMAE_Category: 0,0 Undefined,Undefined X-CNFS-Analysis: v=1.0 c=1 a=JrbM_hlhag8A:10 a=604OlVF_O-oA:10 a=3D9lC6pwAAAA:8 a=sYJyIz0Bwv3i7Cs3SEgA:9 a=0zkTzIln8UBnXKJGg1EA:7 a=12WEt_WQBeBZrLeG8_I1lCI-W5YA:4 a=gi0PWCVxevcA:10 X-CM-Score: 0 X-Scanned-by: Cloudmark Authority Engine Authentication-Results: smtp06.embarq.synacor.com smtp.user=liegner@embarqmail.com; auth=pass (LOGIN) Received: from [69.69.75.226] ([69.69.75.226:11161] helo=[10.0.1.7]) by mailrelay.embarq.synacor.com (envelope-from ) (ecelerity 2.2.1.28 r(22594)) with ESMTPA id 11/E9-15280-2C15C884; Sun, 27 Jul 2008 06:45:24 -0400 Mime-Version: 1.0 X-Sender: liegner@embarqmail.com@pop.embarqmail.com X-Original-Message-Id: In-Reply-To: References: X-Original-Date: Sun, 27 Jul 2008 06:45:13 -0400 X-Original-To: billhogarty From: "Jeffrey Liegner, MD" Subject: Re: Gap Seals and Aileron Force Required in Flight (LIVP) X-Original-Cc: "Lancair Mailing List" Content-Type: text/plain; charset="iso-8859-1" ; format="flowed" Content-Transfer-Encoding: 8bit I think every LIVP driver (and their pilot friends) have noticed the significant increase in roll force required to move the ailerons in fast cruise flight compared to on-the-ground. The ailerons are very small compared to other control surfaces (ex, elevator deflection is easier and elicits a very fast response), and the airspeed over them exerts a significant resistence to deflection. Fortunately, small aileron movement elicits a significant response, and so in-flight deflection is not like testing control movement on the ground. Because my left arm tricep (roll left) is not as strong as my bicep (roll right), I sometimes augment the left roll input with my knee. Cheater. I know nothing of gap seals. Jeff L LIVP >For Greyhawk: > >Although my ailerons move freely on the ground, the in-flight force >required in my 4P is greater than I would hope for. I was >considering gap seals as a possible remedy. Since I understand that >you have installed gap seals on your machine, could we have your >before and after experience with respect to aileron force and/or any >other secrets you might like to share. > >BTW, does any other L-IV have this problem? > >Thanks, Bill Hogarty -- Ετ http://www.groundspeedrecords.com/records/record%20light%20Lancair%20IVP%20380kts.htm