X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 29 Jun 2011 15:49:43 -0400 Message-ID: X-Original-Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.122] verified) by logan.com (CommuniGate Pro SMTP 5.4.0) with ESMTP id 5037386 for lml@lancaironline.net; Wed, 29 Jun 2011 15:26:48 -0400 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.122; envelope-from=tednoel@cfl.rr.com X-Original-Return-Path: X-Authority-Analysis: v=1.1 cv=SOlsIBN44tkg4MqIq+y2aLZdhoA3kHpmiRsLue6rfnM= c=1 sm=0 a=CpZYxkIGCHkA:10 a=8nJEP1OIZ-IA:10 a=5zEv8FOEouFFTgTFH6HffA==:17 a=Ia-xEzejAAAA:8 a=oCcaPWc0AAAA:8 a=vpGSRPGSJ30a_BbXF4AA:9 a=ZjfZiIek7RVGzvl0ZjkA:7 a=wPNLvfGTeEIA:10 a=CVU0O5Kb7MsA:10 a=CkWekaYMXr_Gccky:21 a=tlVgKlW4Lsg66R6e:21 a=5zEv8FOEouFFTgTFH6HffA==:117 X-Cloudmark-Score: 0 X-Originating-IP: 97.101.50.108 Received: from [97.101.50.108] ([97.101.50.108:62264] helo=[192.168.0.103]) by cdptpa-oedge01.mail.rr.com (envelope-from ) (ecelerity 2.2.3.46 r()) with ESMTP id 66/03-15242-65C7B0E4; Wed, 29 Jun 2011 19:26:14 +0000 X-Original-Message-ID: <4E0B7C59.70309@cfl.rr.com> X-Original-Date: Wed, 29 Jun 2011 15:26:17 -0400 From: Ted Noel Reply-To: tednoel@cfl.rr.com User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.18) Gecko/20110616 Lightning/1.0b2 Thunderbird/3.1.11 MIME-Version: 1.0 X-Original-To: Lancair Mailing List Subject: Re: [LML] Fin References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit This also suggests that gear extension should be part of stall recovery. Ted Noel N540TF On 6/29/2011 11:26 AM, Giffen Marr wrote: > Before I started to build my IV-P, I reviewed the accident history of the IV.What I found was a significant number of stall spin accidents in the IV. Why a higher rate then other aircraft? From my analysis, I felt there were two reasons, one,the aircraft tended to have an aft CG, and two, the tail became blanketed in the spin, causing difficulty in recovery. My un-flown solution was to move as much weight forward as I could, add stall strips, add the ventral fin and add about 48 square inches of area to the rudder trailing edge. You must also remember that when you retract the gear, the cg moves aft about 2 inches. With an aft CG, the aircraft will tend to go flat in the spin, which makes recovery difficult. > > Giff Marr > N229GM > 1st engine run before AirVenture. > -- > For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.html > > > ----- > No virus found in this message. > Checked by AVG - www.avg.com > Version: 10.0.1388 / Virus Database: 1516/3733 - Release Date: 06/29/11 > > >