X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 05 Jun 2013 14:58:23 -0400 Message-ID: X-Original-Return-Path: Received: from qmta05.westchester.pa.mail.comcast.net ([76.96.62.48] verified) by logan.com (CommuniGate Pro SMTP 6.0.5) with ESMTP id 6308923 for lml@lancaironline.net; Wed, 05 Jun 2013 11:45:44 -0400 Received-SPF: pass receiver=logan.com; client-ip=76.96.62.48; envelope-from=jmorgan1023@comcast.net Received: from omta02.westchester.pa.mail.comcast.net ([76.96.62.19]) by qmta05.westchester.pa.mail.comcast.net with comcast id kbPF1l0020QuhwU55fl9gb; Wed, 05 Jun 2013 15:45:09 +0000 Received: from [192.168.1.115] ([24.11.157.196]) by omta02.westchester.pa.mail.comcast.net with comcast id kfl81l01s4EXR5U3Nfl96S; Wed, 05 Jun 2013 15:45:09 +0000 From: Jack Morgan Mime-Version: 1.0 (Apple Message framework v1283) Content-Type: multipart/alternative; boundary="Apple-Mail=_6065237E-0271-4AF3-97A0-32184EFF5442" Subject: Stall technique X-Original-Date: Wed, 5 Jun 2013 11:45:08 -0400 In-Reply-To: X-Original-To: "Lancair Mailing List" References: X-Original-Message-Id: <093E1BD4-91D7-478E-87A2-F800D6426AE8@comcast.net> X-Mailer: Apple Mail (2.1283) --Apple-Mail=_6065237E-0271-4AF3-97A0-32184EFF5442 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=iso-8859-1 The proper technique for stall demonstration/recovery is ailerons = centered and rudder as required to keep the wings level. Using the = ailerons at the stall onset aggravates the departure in most = airplanes... high performance or not. Proper rudder use and centered = ailerons are important for safe stalls and very slow flight in any = airplane. When near stall using the rudder to pick up the low wing is = mandatory. (Looking forward to the Ercoupe folks chiming in.... he he) I am intrigued why we care what the stall speed is for a IV. Given that = the sink rate is so high anywhere near that speed, it is both a = dangerous and useless part of the envelope. Regardless of the choices = the pilot has made regarding VG's or AOA's, proper speed management in a = IV is mandatory and should remain the primary focus of the pilot. I understand that adding items that allow us to improperly handle the = airplane and get away with it may improve safety but relying on such = "fixes" is problematic. Proper training and technique should be the = primary focus....especially in high performance Lancair aircraft. Jack Morgan On Jun 5, 2013, at 6:00 AM, Lancair Mailing List wrote: >=20 > This is consistent with some limited VG experiments Len made on my = airplane. > In other words, you still have limited to no aileron authority at the = stall. > Len did do some experiments that resulted better characteristics at = the stall but higher stall speed. > An interesting question is "Would you rather have more control at a = higher stall speed or less control at a lower stall speed?" >=20 --Apple-Mail=_6065237E-0271-4AF3-97A0-32184EFF5442 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=iso-8859-1 The = proper technique for stall demonstration/recovery is ailerons centered = and rudder as required to keep the wings level. Using the ailerons at = the stall onset aggravates the departure in most airplanes... high = performance or not. Proper rudder use and centered ailerons are = important for safe stalls and very slow flight in any airplane. When = near stall using the rudder to pick up the low wing is mandatory. = (Looking forward to the Ercoupe folks chiming in.... he = he)

I am intrigued why we care what the stall speed = is for a IV. Given that the sink rate is so high anywhere near that = speed, it is both a dangerous and useless part of the envelope. = Regardless of the choices the pilot has made regarding VG's or AOA's, = proper speed management in a IV is mandatory and should remain the = primary focus of the pilot.

I understand that = adding items that allow us to improperly handle the airplane and get = away with it may improve safety but relying on such "fixes" is = problematic. Proper training and technique should be the primary = focus....especially in high performance Lancair = aircraft.

Jack Morgan

On = Jun 5, 2013, at 6:00 AM, Lancair Mailing List wrote:

This is consistent with some limited VG = experiments Len made on my airplane.
In other = words, you still have limited to no aileron authority at the = stall.
Len did do some experiments that resulted better characteristics = at the stall but higher stall speed.
An interesting question is = "Would you rather have more control at a higher stall speed or less = control at a lower stall speed?"


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