X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 30 [X] Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 21 Mar 2007 11:40:08 -0400 Message-ID: X-Original-Return-Path: Received: from relay01.mail-hub.dodo.com.au ([203.220.32.149] verified) by logan.com (CommuniGate Pro SMTP 5.1.7) with ESMTP id 1934509 for lml@lancaironline.net; Wed, 21 Mar 2007 09:40:54 -0400 Received-SPF: none receiver=logan.com; client-ip=203.220.32.149; envelope-from=dbretag@dodo.com.au Received: from [123.3.37.118] (helo=darryl) by relay01.mail-hub.dodo.com.au with smtp (Exim 4.66) (envelope-from ) id 1HU12h-0003vj-EL for lml@lancaironline.net; Thu, 22 Mar 2007 00:39:56 +1100 X-Original-Message-ID: <007601c76bbe$69329770$7625037b@darryl> From: "Darryl Bretag" X-Original-To: Subject: Proud control surfaces X-Original-Date: Wed, 21 Mar 2007 23:39:53 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0073_01C76C12.39B96150" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3028 Disposition-Notification-To: "Darryl Bretag" X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 This is a multi-part message in MIME format. ------=_NextPart_000_0073_01C76C12.39B96150 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Bob In your opinion, when the manual calls for 0.050 gap between top skin and aileron and = 0.050 gap between bottom skin and aileron and 0.050 gap between top skin = and top of flap and ( the factory are know saying the bottom skin can be = extended straight back to the bottom of the flap with a 0.050 gap as = well ) HOW much leakage through these gaps is going to=20 - slow the aircraft down ? ---- % --- or loss in air speed, what improvement would a 0.025 give us ? -- % what improvement would a 0.005 give us ? -- % If we had a 0.005 gap all-round and had the 0.040 proud aileron leading = edge what do you think the efficiency gain would be ?????? If any And = is it worth all the effort.=20 And should we be looking at the flap leading edge too , ( standing = proud above top skin ). Thanks in advance, Its great to have these comments. Darryl. ------=_NextPart_000_0073_01C76C12.39B96150 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Bob
 
In your opinion,
 when the manual calls for 0.050=20 gap between top skin and aileron and 0.050 gap between bottom skin = and=20 aileron and 0.050 gap between top skin and top of flap and ( the factory = are=20 know saying the bottom skin can be extended straight back to the bottom = of the=20 flap with a 0.050 gap as well ) HOW much leakage through these gaps is = going to=20
 
- slow the aircraft down ?  = ----  =20 %   ---   or loss in air speed,
 
what improvement would a 0.025 give us = ?  --=20 %
 
what improvement would a = 0.005 give us ? =20 --  %
 
If we had a 0.005 gap all-round and had = the 0.040=20 proud aileron leading edge what do you think the efficiency gain would = be=20 ??????  If any  And is it = worth all the=20 effort. 
 
 And should we be looking at the = flap leading=20 edge too , ( standing proud above top skin ).
 
 Thanks in advance,
  Its great to have these=20 comments.
 
 
 Darryl.
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