X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 30 [X] Return-Path: Sender: To: lml@lancaironline.net Date: Sat, 03 Mar 2007 23:04:32 -0500 Message-ID: X-Original-Return-Path: Received: from ms-smtp-03.texas.rr.com ([24.93.47.42] verified) by logan.com (CommuniGate Pro SMTP 5.1.7) with ESMTP id 1881421 for lml@lancaironline.net; Sat, 03 Mar 2007 22:49:27 -0500 Received-SPF: none receiver=logan.com; client-ip=24.93.47.42; envelope-from=schaefer@rts-services.com Received: from Master.RTS-Services.com (cpe-66-69-222-238.austin.res.rr.com [66.69.222.238]) by ms-smtp-03.texas.rr.com (8.13.6/8.13.6) with ESMTP id l243mcxQ021837 for ; Sat, 3 Mar 2007 21:48:38 -0600 (CST) Received: from RTSLaptop (cpe-66-69-222-238.austin.res.rr.com [66.69.222.238]) (authenticated bits=0) by Master.RTS-Services.com (8.13.1/8.13.1) with ESMTP id l243k79W019206 (version=TLSv1/SSLv3 cipher=RC4-MD5 bits=128 verify=NO) for ; Sat, 3 Mar 2007 21:46:07 -0600 From: "Richard T. Schaefer" X-Original-To: "'Lancair Mailing List'" Subject: RE: [LML] Aileron reflex X-Original-Date: Sat, 3 Mar 2007 21:50:15 -0600 X-Original-Message-ID: <004001c75e10$389a1c20$670aa8c0@RTSLaptop> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0041_01C75DDD.EDFFAC20" X-Mailer: Microsoft Office Outlook 11 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 Thread-Index: AcdcTDPR/ymjLI0hTT+by6KzBN73pwBwWK0g In-Reply-To: X-Spam-Score: -2.203 () AWL,BAYES_00,HTML_70_80,HTML_MESSAGE X-Scanned-By: MIMEDefang 2.58 on 192.168.10.101 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0041_01C75DDD.EDFFAC20 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit On gliders we have negative flaps for flying fast (I have 2 negative flap settings). This reduces the drag at higher speed. Optimal settings are a function of speed and weight. As the gross weight of the aircraft increase the optimum amount of negative flaps (or Aileron Reflex) would decrease. For an airplane when running at higher (indicated) speeds with an optimal amount of reflex, one would see faster speeds and/or better fuel efficiency. r.t.s. _____ From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Paul Lipps Sent: Thursday, March 01, 2007 3:57 PM To: lml@lancaironline.net Subject: [LML] Aileron reflex I have my ailerons reflexed about 3 deg up. As I have posted in the past, through testing I found that varying the flap reflex with weight and density altitude could result in a 1.5% change of speed. The higher the density altitude and the higher the weight, the less reflex should be employed in order to increase the wing's camber for the higher required CL. As camber is changed on the NLF1 015F airfoil, the drag bucket moves along with it. You will also have an added benefit of the fuselage angle being reduced which gives better visibility over the nose. ------=_NextPart_000_0041_01C75DDD.EDFFAC20 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

On gliders we have negative flaps = for flying fast (I have 2 negative flap = settings).

This reduces the drag at higher = speed.

Optimal settings are a function of = speed and weight.

As the gross weight of the aircraft = increase the optimum amount of negative flaps (or Aileron Reflex) would = decrease.

For an airplane when running at = higher (indicated) speeds with an optimal amount of reflex, one would see = faster speeds and/or better fuel efficiency.

r.t.s.

From: = Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Paul Lipps
Sent: Thursday, March 01, = 2007 3:57 PM
To: = lml@lancaironline.net
Subject: [LML] Aileron = reflex

I have my ailerons reflexed about 3 deg up. As I have = posted in the past, through testing I found that varying the flap reflex with = weight and density altitude could result in a 1.5% change of speed. The higher = the density altitude and the higher the weight, the less reflex should be = employed in order to increase the wing's camber for the higher required CL. As = camber is changed on the NLF1 015F airfoil, the drag bucket moves along with it. = You will also have an added benefit of the fuselage angle being reduced which = gives better visibility over the nose.

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