X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 28 May 2013 15:02:11 -0400 Message-ID: X-Original-Return-Path: Received: from mta21.charter.net ([216.33.127.81] verified) by logan.com (CommuniGate Pro SMTP 6.0.5) with ESMTP id 6294078 for lml@lancaironline.net; Tue, 28 May 2013 13:52:26 -0400 Received-SPF: pass receiver=logan.com; client-ip=216.33.127.81; envelope-from=troneill@charter.net Received: from imp11 ([10.20.200.11]) by mta21.charter.net (InterMail vM.8.01.05.09 201-2260-151-124-20120717) with ESMTP id <20130528175151.OOCB10448.mta21.charter.net@imp11> for ; Tue, 28 May 2013 13:51:51 -0400 Received: from [192.168.1.100] ([75.132.130.89]) by imp11 with smtp.charter.net id hVrq1l00m1vsS2r05VrrRq; Tue, 28 May 2013 13:51:51 -0400 X-Authority-Analysis: v=2.0 cv=dIr+A5lb c=1 sm=1 a=5qs0V4O3azrKx6HjxWTekQ==:17 a=yUnIBFQkZM0A:10 a=hOpmn2quAAAA:8 a=UBKSMlp4fAEA:10 a=CjxXgO3LAAAA:8 a=GDK7615sY2jNpdmE3F8A:9 a=CjuIK1q_8ugA:10 a=rC2wZJ5BpNYA:10 a=rxwsXnJcmbZC_Osx880A:9 a=_W_S_7VecoQA:10 a=mzKibDpIkA5jM8-G:21 a=5qs0V4O3azrKx6HjxWTekQ==:117 From: Terrence O'Neill Mime-Version: 1.0 (Apple Message framework v1085) Content-Type: multipart/alternative; boundary=Apple-Mail-6-614287075 Subject: Re: [LML] Re: Lancair Aerobatics X-Original-Date: Tue, 28 May 2013 12:51:50 -0500 In-Reply-To: X-Original-To: "Lancair Mailing List" References: X-Original-Message-Id: X-Mailer: Apple Mail (2.1085) --Apple-Mail-6-614287075 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Does anyone expect my mention of 'How about watching your AOAs! to avoid stall-departures (and = subsequent) spins. ?? Terrence " On May 28, 2013, at 12:17 PM, cwfmd@yahoo.com wrote: > Several challenges face the new Lancair pilot. Please approach = aerobatics very carefully. My Lancair 4P has a much higher wing loading, = intended for cruise performance. You will notice the Pitts and most = aircraft designed for aerobatics have very low wing loading, often with = two sets of wings. > I believe spatial disorientation is often a factor when these planes = 'depart' controlled flight. Rotations and accelerations can be violent, = depending on the airframe and builder technique. This is usually only a = problem, in VMC, in military performance airplanes, so there is less = training and experience, in the certified civil fleet. When the pilot = is so disoriented, that they cannot even see instruments or horizon, = it's not that they freeze up, but they just can't figure out what = happened or what recovery action to take. We called this type III = Spatial Disorientation(SD). Type I is prior to recognition, and type II = is after the pilot recognizes his disorientation. In addition, being = untested in spin modes, the departure may become an unrecoverable = stabilized spin, after a short period. Sometimes recovery is only = available by immediate action, which may elude the most experienced = pilot, if they are surprised by the departure. All this is aggravated by = the accelerated stall with high G loading. > I think the two main killers of over 150 souls in the Lancair = experience are thunderstorms and low altitude stall-departure-spin = scenarios, often with related engine failures or "magic turn" attempts. = Stay fast in the pattern, even if you have to make a couple of circuits = at pattern altitude, to let the "low wing loaded" get on the runway. = Keep a visual sep of 10-20 miles from the cumulonimbi. The thunderstorm = scenarios are SD departures with Ice and extreme turbulence and hail = included. Join us at the LOBO meetings and training. Especially, talk to = a LOBO or HPAT instructor about aerobatics first. > Bill Miller --Apple-Mail-6-614287075 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=us-ascii Does = anyone expect my mention of
 'How about watching your AOAs! to = avoid stall-departures (and subsequent) spins. = ??

Terrence
"
On May 28, = 2013, at 12:17 PM, cwfmd@yahoo.com = wrote:

Several challenges face the new Lancair pilot. Please approach = aerobatics very carefully. My Lancair 4P has a much higher wing loading, = intended for cruise performance. You will notice the Pitts and most = aircraft designed for aerobatics have very low wing loading, often with = two sets of wings.
 I believe spatial disorientation is often a = factor when these planes 'depart' controlled flight. Rotations and = accelerations can be violent, depending on the airframe and builder = technique. This is usually only a problem, in VMC, in military = performance airplanes, so there is less training and experience, in the = certified civil fleet.  When the pilot is so disoriented, that they = cannot even see instruments or horizon, it's not that they freeze up, = but they just can't figure out what happened or what recovery action to = take. We called this type III Spatial Disorientation(SD). Type I is prior to recognition, and type II is = after the pilot recognizes his disorientation. In addition, being = untested in spin modes, the departure may become an unrecoverable = stabilized spin, after a short period. Sometimes recovery is only = available by immediate action, which may elude the most experienced = pilot, if they are surprised by the departure. All this is aggravated by = the accelerated stall with high G loading.
 I think the two main = killers of over 150 souls in the Lancair experience are thunderstorms = and low altitude stall-departure-spin scenarios, often with related = engine failures or "magic turn" attempts.  Stay fast in the = pattern, even if you have to make a couple of circuits at pattern = altitude, to let the "low wing loaded" get on the runway. Keep a visual = sep of 10-20 miles from the cumulonimbi. The thunderstorm scenarios are = SD departures with Ice and extreme turbulence and hail included. Join us = at the LOBO meetings and training. Especially, talk to a LOBO or HPAT = instructor about aerobatics first.
Bill = Miller

= --Apple-Mail-6-614287075--