X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fmailhost06.isp.att.net ([204.127.217.106] verified) by logan.com (CommuniGate Pro SMTP 5.2.13) with ESMTP id 3566257 for flyrotary@lancaironline.net; Tue, 31 Mar 2009 18:59:48 -0400 Received-SPF: pass receiver=logan.com; client-ip=204.127.217.106; envelope-from=bobperk9@bellsouth.net DKIM-Signature: v=1; q=dns/txt; d=bellsouth.net; s=dkim01; i=bobperk9@bellsouth.net; a=rsa-sha256; c=relaxed/relaxed; t=1238540388; h=Content-Type:MIME-Version:In-Reply-To:Message-Id: Date:Subject:To:From; bh=Srs168t+cLLbjmzTc4GLvbLGl2/mlnWVR8W+tnmQ38 s=; b=Y6EagfpKwKH8C+++oAciko18DEuwuFxe5LDsTQqCrmVujtZjdgk00m7OJCkVo Cl9ZuRru7uuaT1ZatlfHOoEPQ== Received: from fwebmail02.isp.att.net ([207.115.11.152]) by isp.att.net (frfwmhc06) with SMTP id <20090331225913H0600rp4p1e>; Tue, 31 Mar 2009 22:59:13 +0000 X-Originating-IP: [207.115.11.152] Received: from [74.249.250.29] by fwebmail02.isp.att.net; Tue, 31 Mar 2009 22:59:13 +0000 From: "Bob Perkinson" To: "Rotary motors in aircraft" Subject: Was; Video of First Flight - Mustang II Now: HOW DO THER DO THAT Date: Tue, 31 Mar 2009 22:59:13 +0000 Message-Id: <033120092259.7699.49D2A040000E2D3700001E1322216125569B0A02D2089B9A019C04040A0DBFC7059D0A9F0D010D@att.net> In-Reply-To: X-Mailer: AT&T Message Center Version 1 (Mar 2 2009) X-Authenticated-Sender: Ym9icGVyazlAYmVsbHNvdXRoLm5ldA== MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="NextPart_Webmail_9m3u9jl4l_7699_1238540353_0" --NextPart_Webmail_9m3u9jl4l_7699_1238540353_0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable =20 Bob Not knowing how the Mustang wing is built I am curious as to how you are ch= anging the leading edge airfoil? Could you give a little more detail, or p= ost a link to an explanation of this procedure.=20 Curious Minds Want to Know Bob Perkinson =20 =20=20=20=20=20 Bill, =20 I came a little faster on my secondlanding (second flight) and greased it o= n. I am using the fix published by the Mustang II designer, Bob Bushby, ina= n early newsletter, which is to make the leading edge of the outer 1/3 of t= hewing that drops - more round, i.e. not as sharp. This allows the air to = flow over theleading edge more easily at higher angles of attack without se= parating from thewing and lets the wing keep flying longer. After my initia= l re-work effort, the right wing drop at stall was muchless severe on the s= econd flight and the plane more stable leading up to thestall. The right w= ing still dropsfirst, so I plan to continue rounding the outer leading edge= of my right wingper Bob Bushby=E2=80=99s method until both wings stall at = the same time. =20 The radiator and oil cooler are located betweenthe engine and the firewall,= much like the Powersport installation http://powersportaviation.com/rv-6a_= n225ps.htm Here is a link to my engine installation beforethe baffling was installed t= hat forced all air to pass through the radiator andoil cooler before exitin= g the engine compartment. http://www.eaa1246.org/big_photo.asp?id=3DTurbo= %2Ejpg =20 Bob =20 --NextPart_Webmail_9m3u9jl4l_7699_1238540353_0 Content-Type: multipart/related; boundary="NextPart_Webmail_9m3u9jl4l_7699_1238540353_1" --NextPart_Webmail_9m3u9jl4l_7699_1238540353_1 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable
=20
Bob
Not knowing how the Mustang wing is built I am curious as to ho= w you are changing the leading edge airfoil?  Could you give a little = more detail, or post a link to an explanation of this procedure.
Curiou= s Minds Want to Know

Bob Perkinson

Bill,

 

I came a littl= e faster on my second landing (second flight) and greased it on.  I am using the fix published by the Mustang II designer, Bob Bushby,= in an early newsletter, wh= ich is to make the leading edge of the outer 1/3 of the wing that drops - more round, i.e. not as sharp.  This allows the air to flow over= the leading edge more easily at higher angles of attack without separating from= the wing and lets the wing keep flying longer.  After my initial re-work effort, the right wing drop at stall was mu= ch less severe on the second flight and the plane more stable leading up to th= e stall.  The right wing still drops first, so I plan to continue rounding the outer leading edge of my right wi= ng per Bob Bushby=E2=80=99s method until both wings stall at the same time.

 

The radiator a= nd oil cooler are located between the engine and the firewall, much like the Powersport installation http://powersportaviati= on.com/rv-6a_n225ps.htm

Here is a link= to my engine installation before the baffling was installed that forced all air to pass through the radiator= and oil cooler before exiting the engine compartment.   http://www.eaa1246.org/big_photo.asp?id=3DTurbo%2= Ejpg

 

Bob=

 <= o:p>

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